2005-04-16 15:20:36 -07:00
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2005-05-05 16:16:16 -07:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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flag parameters: paccept
This patch is by far the most complex in the series. It adds a new syscall
paccept. This syscall differs from accept in that it adds (at the userlevel)
two additional parameters:
- a signal mask
- a flags value
The flags parameter can be used to set flag like SOCK_CLOEXEC. This is
imlpemented here as well. Some people argued that this is a property which
should be inherited from the file desriptor for the server but this is against
POSIX. Additionally, we really want the signal mask parameter as well
(similar to pselect, ppoll, etc). So an interface change in inevitable.
The flag value is the same as for socket and socketpair. I think diverging
here will only create confusion. Similar to the filesystem interfaces where
the use of the O_* constants differs, it is acceptable here.
The signal mask is handled as for pselect etc. The mask is temporarily
installed for the thread and removed before the call returns. I modeled the
code after pselect. If there is a problem it's likely also in pselect.
For architectures which use socketcall I maintained this interface instead of
adding a system call. The symmetry shouldn't be broken.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_CLOEXEC O_CLOEXEC
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
sleep (2);
pthread_kill ((pthread_t) arg, SIGUSR1);
return NULL;
}
static void
handler (int s)
{
}
int
main (void)
{
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
int coe = fcntl (s2, F_GETFD);
if (coe & FD_CLOEXEC)
{
puts ("paccept(0) set close-on-exec-flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_CLOEXEC);
if (s2 < 0)
{
puts ("paccept(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (s2, F_GETFD);
if ((coe & FD_CLOEXEC) == 0)
{
puts ("paccept(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
struct sigaction sa;
sa.sa_handler = handler;
sa.sa_flags = 0;
sigemptyset (&sa.sa_mask);
sigaction (SIGUSR1, &sa, NULL);
sigset_t ss;
pthread_sigmask (SIG_SETMASK, NULL, &ss);
sigaddset (&ss, SIGUSR1);
pthread_sigmask (SIG_SETMASK, &ss, NULL);
sigdelset (&ss, SIGUSR1);
alarm (4);
pthread_barrier_wait (&b);
errno = 0 ;
s2 = paccept (s, NULL, 0, &ss, 0);
if (s2 != -1 || errno != EINTR)
{
puts ("paccept did not fail with EINTR");
return 1;
}
close (s);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[akpm@linux-foundation.org: make it compile]
[akpm@linux-foundation.org: add sys_ni stub]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Roland McGrath <roland@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:20 -07:00
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2006-09-01 00:23:39 -07:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:33:17 -08:00
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2005-04-16 15:20:36 -07:00
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2005-08-16 02:18:02 -03:00
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2014-04-01 16:20:23 +02:00
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2005-04-16 15:20:36 -07:00
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2005-05-17 12:08:48 +01:00
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2006-01-21 00:46:55 +01:00
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2007-10-08 23:24:22 -07:00
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2009-09-22 16:43:33 -07:00
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 17:04:11 +09:00
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2012-08-29 10:44:29 +00:00
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2005-04-16 15:20:36 -07:00
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2016-12-24 11:46:01 -08:00
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2005-04-16 15:20:36 -07:00
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2008-06-03 09:14:03 -07:00
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cls_cgroup: Store classid in struct sock
Up until now cls_cgroup has relied on fetching the classid out of
the current executing thread. This runs into trouble when a packet
processing is delayed in which case it may execute out of another
thread's context.
Furthermore, even when a packet is not delayed we may fail to
classify it if soft IRQs have been disabled, because this scenario
is indistinguishable from one where a packet unrelated to the
current thread is processed by a real soft IRQ.
In fact, the current semantics is inherently broken, as a single
skb may be constructed out of the writes of two different tasks.
A different manifestation of this problem is when the TCP stack
transmits in response of an incoming ACK. This is currently
unclassified.
As we already have a concept of packet ownership for accounting
purposes in the skb->sk pointer, this is a natural place to store
the classid in a persistent manner.
This patch adds the cls_cgroup classid in struct sock, filling up
an existing hole on 64-bit :)
The value is set at socket creation time. So all sockets created
via socket(2) automatically gains the ID of the thread creating it.
Whenever another process touches the socket by either reading or
writing to it, we will change the socket classid to that of the
process if it has a valid (non-zero) classid.
For sockets created on inbound connections through accept(2), we
inherit the classid of the original listening socket through
sk_clone, possibly preceding the actual accept(2) call.
In order to minimise risks, I have not made this the authoritative
classid. For now it is only used as a backup when we execute
with soft IRQs disabled. Once we're completely happy with its
semantics we can use it as the sole classid.
Footnote: I have rearranged the error path on cls_group module
creation. If we didn't do this, then there is a window where
someone could create a tc rule using cls_group before the cgroup
subsystem has been registered.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-24 00:12:34 -07:00
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2005-04-16 15:20:36 -07:00
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2009-11-06 23:10:54 -08:00
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2013-07-10 17:13:17 +03:00
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2014-08-04 22:11:45 -04:00
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2013-06-10 11:39:50 +03:00
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2013-08-01 11:10:25 +08:00
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2013-07-10 17:13:36 +03:00
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2013-06-10 11:39:50 +03:00
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2009-11-06 23:10:54 -08:00
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2014-11-28 19:40:50 -05:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2017-07-03 00:01:49 -04:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2006-03-21 23:58:08 -08:00
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2006-09-01 00:19:31 -07:00
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2006-03-21 23:58:08 -08:00
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2005-04-16 15:20:36 -07:00
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2007-11-06 23:30:13 -08:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2005-05-17 12:08:48 +01:00
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2013-11-21 03:14:34 +01:00
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2006-09-01 00:19:31 -07:00
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2011-02-18 03:26:36 +00:00
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2011-02-18 03:26:36 +00:00
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2011-02-18 03:26:36 +00:00
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2015-12-29 13:29:55 +01:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2005-04-16 15:20:36 -07:00
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2007-05-08 00:26:18 -07:00
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2015-03-17 22:26:16 +00:00
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2007-05-08 00:26:18 -07:00
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2009-02-20 06:02:22 +00:00
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2007-05-08 00:26:18 -07:00
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2005-04-16 15:20:36 -07:00
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2016-09-29 17:48:35 +02:00
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2016-11-13 21:23:34 +01:00
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2016-09-29 17:48:35 +02:00
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2016-11-13 21:23:34 +01:00
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2016-09-29 17:48:35 +02:00
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2011-01-12 16:59:34 -05:00
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2016-09-29 17:48:35 +02:00
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2011-01-12 16:59:34 -05:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 17:13:49 -08:00
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2005-04-16 15:20:36 -07:00
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs update from Al Viro:
- big one - consolidation of descriptor-related logics; almost all of
that is moved to fs/file.c
(BTW, I'm seriously tempted to rename the result to fd.c. As it is,
we have a situation when file_table.c is about handling of struct
file and file.c is about handling of descriptor tables; the reasons
are historical - file_table.c used to be about a static array of
struct file we used to have way back).
A lot of stray ends got cleaned up and converted to saner primitives,
disgusting mess in android/binder.c is still disgusting, but at least
doesn't poke so much in descriptor table guts anymore. A bunch of
relatively minor races got fixed in process, plus an ext4 struct file
leak.
- related thing - fget_light() partially unuglified; see fdget() in
there (and yes, it generates the code as good as we used to have).
- also related - bits of Cyrill's procfs stuff that got entangled into
that work; _not_ all of it, just the initial move to fs/proc/fd.c and
switch of fdinfo to seq_file.
- Alex's fs/coredump.c spiltoff - the same story, had been easier to
take that commit than mess with conflicts. The rest is a separate
pile, this was just a mechanical code movement.
- a few misc patches all over the place. Not all for this cycle,
there'll be more (and quite a few currently sit in akpm's tree)."
Fix up trivial conflicts in the android binder driver, and some fairly
simple conflicts due to two different changes to the sock_alloc_file()
interface ("take descriptor handling from sock_alloc_file() to callers"
vs "net: Providing protocol type via system.sockprotoname xattr of
/proc/PID/fd entries" adding a dentry name to the socket)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (72 commits)
MAX_LFS_FILESIZE should be a loff_t
compat: fs: Generic compat_sys_sendfile implementation
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
btrfs: reada_extent doesn't need kref for refcount
coredump: move core dump functionality into its own file
coredump: prevent double-free on an error path in core dumper
usb/gadget: fix misannotations
fcntl: fix misannotations
ceph: don't abuse d_delete() on failure exits
hypfs: ->d_parent is never NULL or negative
vfs: delete surplus inode NULL check
switch simple cases of fget_light to fdget
new helpers: fdget()/fdput()
switch o2hb_region_dev_write() to fget_light()
proc_map_files_readdir(): don't bother with grabbing files
make get_file() return its argument
vhost_set_vring(): turn pollstart/pollstop into bool
switch prctl_set_mm_exe_file() to fget_light()
switch xfs_find_handle() to fget_light()
switch xfs_swapext() to fget_light()
...
2012-10-02 20:25:04 -07:00
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2005-04-16 15:20:36 -07:00
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2009-08-05 19:59:08 +04:00
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2009-08-09 00:52:35 +04:00
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2009-08-05 19:59:08 +04:00
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2005-04-16 15:20:36 -07:00
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2012-08-29 10:44:29 +00:00
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2011-01-07 17:50:07 +11:00
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2017-12-05 23:29:09 +00:00
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2012-08-17 23:54:15 -04:00
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2017-12-05 23:29:09 +00:00
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2009-08-09 00:52:35 +04:00
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2006-03-20 17:13:49 -08:00
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2009-08-09 00:52:35 +04:00
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2006-03-20 17:13:49 -08:00
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2009-08-09 00:52:35 +04:00
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2007-10-16 23:31:13 -07:00
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2015-08-12 15:59:47 +05:30
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2017-12-05 23:29:09 +00:00
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2015-03-17 22:26:16 +00:00
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2009-08-09 00:52:35 +04:00
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2017-12-05 23:29:09 +00:00
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2012-09-12 20:11:55 -07:00
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2009-08-06 09:43:59 +04:00
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flag parameters: NONBLOCK in socket and socketpair
This patch introduces support for the SOCK_NONBLOCK flag in socket,
socketpair, and paccept. To do this the internal function sock_attach_fd
gets an additional parameter which it uses to set the appropriate flag for
the file descriptor.
Given that in modern, scalable programs almost all socket connections are
non-blocking and the minimal additional cost for the new functionality
I see no reason not to add this code.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_NONBLOCK O_NONBLOCK
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
return NULL;
}
int
main (void)
{
int fd;
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
{
puts ("socket(0) failed");
return 1;
}
int fl = fcntl (fd, F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if (fl & O_NONBLOCK)
{
puts ("socket(0) set non-blocking mode");
return 1;
}
close (fd);
fd = socket (PF_INET, SOCK_STREAM|SOCK_NONBLOCK, 0);
if (fd == -1)
{
puts ("socket(SOCK_NONBLOCK) failed");
return 1;
}
fl = fcntl (fd, F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if ((fl & O_NONBLOCK) == 0)
{
puts ("socket(SOCK_NONBLOCK) does not set non-blocking mode");
return 1;
}
close (fd);
int fds[2];
if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1)
{
puts ("socketpair(0) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
fl = fcntl (fds[i], F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if (fl & O_NONBLOCK)
{
printf ("socketpair(0) set non-blocking mode for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_NONBLOCK, 0, fds) == -1)
{
puts ("socketpair(SOCK_NONBLOCK) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
fl = fcntl (fds[i], F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if ((fl & O_NONBLOCK) == 0)
{
printf ("socketpair(SOCK_NONBLOCK) does not set non-blocking mode for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
fl = fcntl (s2, F_GETFL);
if (fl & O_NONBLOCK)
{
puts ("paccept(0) set non-blocking mode");
return 1;
}
close (s2);
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_NONBLOCK);
if (s2 < 0)
{
puts ("paccept(SOCK_NONBLOCK) failed");
return 1;
}
fl = fcntl (s2, F_GETFL);
if ((fl & O_NONBLOCK) == 0)
{
puts ("paccept(SOCK_NONBLOCK) does not set non-blocking mode");
return 1;
}
close (s2);
close (s);
pthread_barrier_wait (&b);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:35 -07:00
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs update from Al Viro:
- big one - consolidation of descriptor-related logics; almost all of
that is moved to fs/file.c
(BTW, I'm seriously tempted to rename the result to fd.c. As it is,
we have a situation when file_table.c is about handling of struct
file and file.c is about handling of descriptor tables; the reasons
are historical - file_table.c used to be about a static array of
struct file we used to have way back).
A lot of stray ends got cleaned up and converted to saner primitives,
disgusting mess in android/binder.c is still disgusting, but at least
doesn't poke so much in descriptor table guts anymore. A bunch of
relatively minor races got fixed in process, plus an ext4 struct file
leak.
- related thing - fget_light() partially unuglified; see fdget() in
there (and yes, it generates the code as good as we used to have).
- also related - bits of Cyrill's procfs stuff that got entangled into
that work; _not_ all of it, just the initial move to fs/proc/fd.c and
switch of fdinfo to seq_file.
- Alex's fs/coredump.c spiltoff - the same story, had been easier to
take that commit than mess with conflicts. The rest is a separate
pile, this was just a mechanical code movement.
- a few misc patches all over the place. Not all for this cycle,
there'll be more (and quite a few currently sit in akpm's tree)."
Fix up trivial conflicts in the android binder driver, and some fairly
simple conflicts due to two different changes to the sock_alloc_file()
interface ("take descriptor handling from sock_alloc_file() to callers"
vs "net: Providing protocol type via system.sockprotoname xattr of
/proc/PID/fd entries" adding a dentry name to the socket)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (72 commits)
MAX_LFS_FILESIZE should be a loff_t
compat: fs: Generic compat_sys_sendfile implementation
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
btrfs: reada_extent doesn't need kref for refcount
coredump: move core dump functionality into its own file
coredump: prevent double-free on an error path in core dumper
usb/gadget: fix misannotations
fcntl: fix misannotations
ceph: don't abuse d_delete() on failure exits
hypfs: ->d_parent is never NULL or negative
vfs: delete surplus inode NULL check
switch simple cases of fget_light to fdget
new helpers: fdget()/fdput()
switch o2hb_region_dev_write() to fget_light()
proc_map_files_readdir(): don't bother with grabbing files
make get_file() return its argument
vhost_set_vring(): turn pollstart/pollstop into bool
switch prctl_set_mm_exe_file() to fget_light()
switch xfs_find_handle() to fget_light()
switch xfs_swapext() to fget_light()
...
2012-10-02 20:25:04 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2014-03-03 23:48:18 -05:00
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2006-03-20 22:27:12 -08:00
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2006-04-19 15:25:02 -07:00
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2014-03-03 23:48:18 -05:00
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2006-03-20 22:27:12 -08:00
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2014-03-03 23:48:18 -05:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2012-08-29 10:44:29 +00:00
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2015-03-17 22:26:16 +00:00
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2012-08-29 10:44:29 +00:00
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2017-01-10 09:30:51 +01:00
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net: core: Add a UID field to struct sock.
Protocol sockets (struct sock) don't have UIDs, but most of the
time, they map 1:1 to userspace sockets (struct socket) which do.
Various operations such as the iptables xt_owner match need
access to the "UID of a socket", and do so by following the
backpointer to the struct socket. This involves taking
sk_callback_lock and doesn't work when there is no socket
because userspace has already called close().
Simplify this by adding a sk_uid field to struct sock whose value
matches the UID of the corresponding struct socket. The semantics
are as follows:
1. Whenever sk_socket is non-null: sk_uid is the same as the UID
in sk_socket, i.e., matches the return value of sock_i_uid.
Specifically, the UID is set when userspace calls socket(),
fchown(), or accept().
2. When sk_socket is NULL, sk_uid is defined as follows:
- For a socket that no longer has a sk_socket because
userspace has called close(): the previous UID.
- For a cloned socket (e.g., an incoming connection that is
established but on which userspace has not yet called
accept): the UID of the socket it was cloned from.
- For a socket that has never had an sk_socket: UID 0 inside
the user namespace corresponding to the network namespace
the socket belongs to.
Kernel sockets created by sock_create_kern are a special case
of #1 and sk_uid is the user that created them. For kernel
sockets created at network namespace creation time, such as the
per-processor ICMP and TCP sockets, this is the user that created
the network namespace.
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 02:23:41 +09:00
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2016-12-30 17:42:32 -06:00
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net: core: Add a UID field to struct sock.
Protocol sockets (struct sock) don't have UIDs, but most of the
time, they map 1:1 to userspace sockets (struct socket) which do.
Various operations such as the iptables xt_owner match need
access to the "UID of a socket", and do so by following the
backpointer to the struct socket. This involves taking
sk_callback_lock and doesn't work when there is no socket
because userspace has already called close().
Simplify this by adding a sk_uid field to struct sock whose value
matches the UID of the corresponding struct socket. The semantics
are as follows:
1. Whenever sk_socket is non-null: sk_uid is the same as the UID
in sk_socket, i.e., matches the return value of sock_i_uid.
Specifically, the UID is set when userspace calls socket(),
fchown(), or accept().
2. When sk_socket is NULL, sk_uid is defined as follows:
- For a socket that no longer has a sk_socket because
userspace has called close(): the previous UID.
- For a cloned socket (e.g., an incoming connection that is
established but on which userspace has not yet called
accept): the UID of the socket it was cloned from.
- For a socket that has never had an sk_socket: UID 0 inside
the user namespace corresponding to the network namespace
the socket belongs to.
Kernel sockets created by sock_create_kern are a special case
of #1 and sk_uid is the user that created them. For kernel
sockets created at network namespace creation time, such as the
per-processor ICMP and TCP sockets, this is the user that created
the network namespace.
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 02:23:41 +09:00
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2012-08-29 10:44:29 +00:00
|
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|
|
net: core: Add a UID field to struct sock.
Protocol sockets (struct sock) don't have UIDs, but most of the
time, they map 1:1 to userspace sockets (struct socket) which do.
Various operations such as the iptables xt_owner match need
access to the "UID of a socket", and do so by following the
backpointer to the struct socket. This involves taking
sk_callback_lock and doesn't work when there is no socket
because userspace has already called close().
Simplify this by adding a sk_uid field to struct sock whose value
matches the UID of the corresponding struct socket. The semantics
are as follows:
1. Whenever sk_socket is non-null: sk_uid is the same as the UID
in sk_socket, i.e., matches the return value of sock_i_uid.
Specifically, the UID is set when userspace calls socket(),
fchown(), or accept().
2. When sk_socket is NULL, sk_uid is defined as follows:
- For a socket that no longer has a sk_socket because
userspace has called close(): the previous UID.
- For a cloned socket (e.g., an incoming connection that is
established but on which userspace has not yet called
accept): the UID of the socket it was cloned from.
- For a socket that has never had an sk_socket: UID 0 inside
the user namespace corresponding to the network namespace
the socket belongs to.
Kernel sockets created by sock_create_kern are a special case
of #1 and sk_uid is the user that created them. For kernel
sockets created at network namespace creation time, such as the
per-processor ICMP and TCP sockets, this is the user that created
the network namespace.
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 02:23:41 +09:00
|
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2012-08-29 10:44:29 +00:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2016-03-07 14:11:01 -08:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2011-07-26 11:36:34 +02:00
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2005-04-16 15:20:36 -07:00
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2010-10-23 11:19:54 -04:00
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2012-08-29 10:44:29 +00:00
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2005-04-16 15:20:36 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2005-04-16 15:20:36 -07:00
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2017-07-28 16:22:41 -07:00
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2017-08-15 22:31:34 -07:00
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2017-07-28 16:22:41 -07:00
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2017-03-18 17:02:59 -04:00
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2017-05-19 17:52:40 +02:00
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2017-05-19 17:52:38 +02:00
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2007-03-25 22:14:49 -07:00
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2009-02-12 05:03:38 +00:00
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2014-08-04 22:11:45 -04:00
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2017-05-19 17:52:40 +02:00
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2009-02-12 05:03:38 +00:00
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2017-05-19 17:52:40 +02:00
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2009-02-12 05:03:38 +00:00
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2017-05-19 17:52:40 +02:00
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2009-02-12 05:03:38 +00:00
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2014-08-04 22:11:45 -04:00
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2009-02-12 05:03:38 +00:00
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2014-08-04 22:11:45 -04:00
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2009-02-12 05:03:38 +00:00
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2014-08-04 22:11:45 -04:00
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2014-09-03 12:01:18 -04:00
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2014-08-04 22:11:45 -04:00
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2009-02-12 05:03:38 +00:00
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2014-07-25 18:01:32 -04:00
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2014-08-04 22:11:46 -04:00
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2017-05-19 17:52:40 +02:00
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2017-05-19 17:52:38 +02:00
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2014-07-25 18:01:32 -04:00
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2017-05-19 17:52:38 +02:00
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2016-11-27 23:07:18 -08:00
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2009-02-12 05:03:38 +00:00
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2014-08-04 22:11:45 -04:00
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2016-11-27 23:07:18 -08:00
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2017-03-18 17:02:59 -04:00
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2017-03-18 17:03:00 -04:00
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2016-11-27 23:07:18 -08:00
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2007-03-25 22:14:49 -07:00
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2007-03-10 00:39:35 -03:00
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2011-11-09 10:15:42 +01:00
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2010-10-18 14:27:29 +00:00
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net: Generalize socket rx gap / receive queue overflow cmsg
Create a new socket level option to report number of queue overflows
Recently I augmented the AF_PACKET protocol to report the number of frames lost
on the socket receive queue between any two enqueued frames. This value was
exported via a SOL_PACKET level cmsg. AFter I completed that work it was
requested that this feature be generalized so that any datagram oriented socket
could make use of this option. As such I've created this patch, It creates a
new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a
SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue
overflowed between any two given frames. It also augments the AF_PACKET
protocol to take advantage of this new feature (as it previously did not touch
sk->sk_drops, which this patch uses to record the overflow count). Tested
successfully by me.
Notes:
1) Unlike my previous patch, this patch simply records the sk_drops value, which
is not a number of drops between packets, but rather a total number of drops.
Deltas must be computed in user space.
2) While this patch currently works with datagram oriented protocols, it will
also be accepted by non-datagram oriented protocols. I'm not sure if thats
agreeable to everyone, but my argument in favor of doing so is that, for those
protocols which aren't applicable to this option, sk_drops will always be zero,
and reporting no drops on a receive queue that isn't used for those
non-participating protocols seems reasonable to me. This also saves us having
to code in a per-protocol opt in mechanism.
3) This applies cleanly to net-next assuming that commit
977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 13:26:31 -07:00
|
|
|
|
2015-03-01 14:58:31 +02:00
|
|
|
|
net: Generalize socket rx gap / receive queue overflow cmsg
Create a new socket level option to report number of queue overflows
Recently I augmented the AF_PACKET protocol to report the number of frames lost
on the socket receive queue between any two enqueued frames. This value was
exported via a SOL_PACKET level cmsg. AFter I completed that work it was
requested that this feature be generalized so that any datagram oriented socket
could make use of this option. As such I've created this patch, It creates a
new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a
SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue
overflowed between any two given frames. It also augments the AF_PACKET
protocol to take advantage of this new feature (as it previously did not touch
sk->sk_drops, which this patch uses to record the overflow count). Tested
successfully by me.
Notes:
1) Unlike my previous patch, this patch simply records the sk_drops value, which
is not a number of drops between packets, but rather a total number of drops.
Deltas must be computed in user space.
2) While this patch currently works with datagram oriented protocols, it will
also be accepted by non-datagram oriented protocols. I'm not sure if thats
agreeable to everyone, but my argument in favor of doing so is that, for those
protocols which aren't applicable to this option, sk_drops will always be zero,
and reporting no drops on a receive queue that isn't used for those
non-participating protocols seems reasonable to me. This also saves us having
to code in a per-protocol opt in mechanism.
3) This applies cleanly to net-next assuming that commit
977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 13:26:31 -07:00
|
|
|
|
2015-03-01 14:58:31 +02:00
|
|
|
|
net: Generalize socket rx gap / receive queue overflow cmsg
Create a new socket level option to report number of queue overflows
Recently I augmented the AF_PACKET protocol to report the number of frames lost
on the socket receive queue between any two enqueued frames. This value was
exported via a SOL_PACKET level cmsg. AFter I completed that work it was
requested that this feature be generalized so that any datagram oriented socket
could make use of this option. As such I've created this patch, It creates a
new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a
SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue
overflowed between any two given frames. It also augments the AF_PACKET
protocol to take advantage of this new feature (as it previously did not touch
sk->sk_drops, which this patch uses to record the overflow count). Tested
successfully by me.
Notes:
1) Unlike my previous patch, this patch simply records the sk_drops value, which
is not a number of drops between packets, but rather a total number of drops.
Deltas must be computed in user space.
2) While this patch currently works with datagram oriented protocols, it will
also be accepted by non-datagram oriented protocols. I'm not sure if thats
agreeable to everyone, but my argument in favor of doing so is that, for those
protocols which aren't applicable to this option, sk_drops will always be zero,
and reporting no drops on a receive queue that isn't used for those
non-participating protocols seems reasonable to me. This also saves us having
to code in a per-protocol opt in mechanism.
3) This applies cleanly to net-next assuming that commit
977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 13:26:31 -07:00
|
|
|
|
|
|
|
|
|
2010-04-28 19:14:43 +00:00
|
|
|
|
net: Generalize socket rx gap / receive queue overflow cmsg
Create a new socket level option to report number of queue overflows
Recently I augmented the AF_PACKET protocol to report the number of frames lost
on the socket receive queue between any two enqueued frames. This value was
exported via a SOL_PACKET level cmsg. AFter I completed that work it was
requested that this feature be generalized so that any datagram oriented socket
could make use of this option. As such I've created this patch, It creates a
new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a
SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue
overflowed between any two given frames. It also augments the AF_PACKET
protocol to take advantage of this new feature (as it previously did not touch
sk->sk_drops, which this patch uses to record the overflow count). Tested
successfully by me.
Notes:
1) Unlike my previous patch, this patch simply records the sk_drops value, which
is not a number of drops between packets, but rather a total number of drops.
Deltas must be computed in user space.
2) While this patch currently works with datagram oriented protocols, it will
also be accepted by non-datagram oriented protocols. I'm not sure if thats
agreeable to everyone, but my argument in favor of doing so is that, for those
protocols which aren't applicable to this option, sk_drops will always be zero,
and reporting no drops on a receive queue that isn't used for those
non-participating protocols seems reasonable to me. This also saves us having
to code in a per-protocol opt in mechanism.
3) This applies cleanly to net-next assuming that commit
977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 13:26:31 -07:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2010-04-28 19:14:43 +00:00
|
|
|
|
net: Generalize socket rx gap / receive queue overflow cmsg
Create a new socket level option to report number of queue overflows
Recently I augmented the AF_PACKET protocol to report the number of frames lost
on the socket receive queue between any two enqueued frames. This value was
exported via a SOL_PACKET level cmsg. AFter I completed that work it was
requested that this feature be generalized so that any datagram oriented socket
could make use of this option. As such I've created this patch, It creates a
new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a
SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue
overflowed between any two given frames. It also augments the AF_PACKET
protocol to take advantage of this new feature (as it previously did not touch
sk->sk_drops, which this patch uses to record the overflow count). Tested
successfully by me.
Notes:
1) Unlike my previous patch, this patch simply records the sk_drops value, which
is not a number of drops between packets, but rather a total number of drops.
Deltas must be computed in user space.
2) While this patch currently works with datagram oriented protocols, it will
also be accepted by non-datagram oriented protocols. I'm not sure if thats
agreeable to everyone, but my argument in favor of doing so is that, for those
protocols which aren't applicable to this option, sk_drops will always be zero,
and reporting no drops on a receive queue that isn't used for those
non-participating protocols seems reasonable to me. This also saves us having
to code in a per-protocol opt in mechanism.
3) This applies cleanly to net-next assuming that commit
977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 13:26:31 -07:00
|
|
|
|
2015-03-02 15:37:48 +08:00
|
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|
2015-03-14 21:13:46 -04:00
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2005-04-16 15:20:36 -07:00
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2015-03-14 21:13:46 -04:00
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|
2005-04-16 15:20:36 -07:00
|
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2015-03-14 21:13:46 -04:00
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2009-10-12 23:40:10 -07:00
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2015-03-14 21:13:46 -04:00
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2009-10-12 23:40:10 -07:00
|
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2015-03-14 21:13:46 -04:00
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2005-04-16 15:20:36 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2017-10-05 12:59:44 -04:00
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2007-09-17 11:56:21 -07:00
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2008-03-26 02:26:21 +09:00
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2009-09-29 23:27:28 +02:00
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2017-10-01 20:13:08 -04:00
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2009-09-29 23:27:28 +02:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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net: speedup sk_wake_async()
An incoming datagram must bring into cpu cache *lot* of cache lines,
in particular : (other parts omitted (hash chains, ip route cache...))
On 32bit arches :
offsetof(struct sock, sk_rcvbuf) =0x30 (read)
offsetof(struct sock, sk_lock) =0x34 (rw)
offsetof(struct sock, sk_sleep) =0x50 (read)
offsetof(struct sock, sk_rmem_alloc) =0x64 (rw)
offsetof(struct sock, sk_receive_queue)=0x74 (rw)
offsetof(struct sock, sk_forward_alloc)=0x98 (rw)
offsetof(struct sock, sk_callback_lock)=0xcc (rw)
offsetof(struct sock, sk_drops) =0xd8 (read if we add dropcount support, rw if frame dropped)
offsetof(struct sock, sk_filter) =0xf8 (read)
offsetof(struct sock, sk_socket) =0x138 (read)
offsetof(struct sock, sk_data_ready) =0x15c (read)
We can avoid sk->sk_socket and socket->fasync_list referencing on sockets
with no fasync() structures. (socket->fasync_list ptr is probably already in cache
because it shares a cache line with socket->wait, ie location pointed by sk->sk_sleep)
This avoids one cache line load per incoming packet for common cases (no fasync())
We can leave (or even move in a future patch) sk->sk_socket in a cold location
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-06 17:28:29 -07:00
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2015-11-29 20:03:11 -08:00
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2007-11-26 20:10:50 +08:00
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2015-11-29 20:03:11 -08:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:24 +01:00
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2005-04-16 15:20:36 -07:00
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flag parameters: socket and socketpair
This patch adds support for flag values which are ORed to the type passwd
to socket and socketpair. The additional code is minimal. The flag
values in this implementation can and must match the O_* flags. This
avoids overhead in the conversion.
The internal functions sock_alloc_fd and sock_map_fd get a new parameters
and all callers are changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#define PORT 57392
/* For Linux these must be the same. */
#define SOCK_CLOEXEC O_CLOEXEC
int
main (void)
{
int fd;
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
{
puts ("socket(0) failed");
return 1;
}
int coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
puts ("socket(0) set close-on-exec flag");
return 1;
}
close (fd);
fd = socket (PF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0);
if (fd == -1)
{
puts ("socket(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
puts ("socket(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (fd);
int fds[2];
if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1)
{
puts ("socketpair(0) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
printf ("socketpair(0) set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, fds) == -1)
{
puts ("socketpair(SOCK_CLOEXEC) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
printf ("socketpair(SOCK_CLOEXEC) does not set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:17 -07:00
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2008-07-23 21:29:42 -07:00
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flag parameters: socket and socketpair
This patch adds support for flag values which are ORed to the type passwd
to socket and socketpair. The additional code is minimal. The flag
values in this implementation can and must match the O_* flags. This
avoids overhead in the conversion.
The internal functions sock_alloc_fd and sock_map_fd get a new parameters
and all callers are changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#define PORT 57392
/* For Linux these must be the same. */
#define SOCK_CLOEXEC O_CLOEXEC
int
main (void)
{
int fd;
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
{
puts ("socket(0) failed");
return 1;
}
int coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
puts ("socket(0) set close-on-exec flag");
return 1;
}
close (fd);
fd = socket (PF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0);
if (fd == -1)
{
puts ("socket(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
puts ("socket(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (fd);
int fds[2];
if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1)
{
puts ("socketpair(0) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
printf ("socketpair(0) set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, fds) == -1)
{
puts ("socketpair(SOCK_CLOEXEC) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
printf ("socketpair(SOCK_CLOEXEC) does not set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:17 -07:00
|
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|
flag parameters: NONBLOCK in socket and socketpair
This patch introduces support for the SOCK_NONBLOCK flag in socket,
socketpair, and paccept. To do this the internal function sock_attach_fd
gets an additional parameter which it uses to set the appropriate flag for
the file descriptor.
Given that in modern, scalable programs almost all socket connections are
non-blocking and the minimal additional cost for the new functionality
I see no reason not to add this code.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_NONBLOCK O_NONBLOCK
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
return NULL;
}
int
main (void)
{
int fd;
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
{
puts ("socket(0) failed");
return 1;
}
int fl = fcntl (fd, F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if (fl & O_NONBLOCK)
{
puts ("socket(0) set non-blocking mode");
return 1;
}
close (fd);
fd = socket (PF_INET, SOCK_STREAM|SOCK_NONBLOCK, 0);
if (fd == -1)
{
puts ("socket(SOCK_NONBLOCK) failed");
return 1;
}
fl = fcntl (fd, F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if ((fl & O_NONBLOCK) == 0)
{
puts ("socket(SOCK_NONBLOCK) does not set non-blocking mode");
return 1;
}
close (fd);
int fds[2];
if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1)
{
puts ("socketpair(0) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
fl = fcntl (fds[i], F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if (fl & O_NONBLOCK)
{
printf ("socketpair(0) set non-blocking mode for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_NONBLOCK, 0, fds) == -1)
{
puts ("socketpair(SOCK_NONBLOCK) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
fl = fcntl (fds[i], F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if ((fl & O_NONBLOCK) == 0)
{
printf ("socketpair(SOCK_NONBLOCK) does not set non-blocking mode for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
fl = fcntl (s2, F_GETFL);
if (fl & O_NONBLOCK)
{
puts ("paccept(0) set non-blocking mode");
return 1;
}
close (s2);
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_NONBLOCK);
if (s2 < 0)
{
puts ("paccept(SOCK_NONBLOCK) failed");
return 1;
}
fl = fcntl (s2, F_GETFL);
if ((fl & O_NONBLOCK) == 0)
{
puts ("paccept(SOCK_NONBLOCK) does not set non-blocking mode");
return 1;
}
close (s2);
close (s);
pthread_barrier_wait (&b);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:35 -07:00
|
|
|
|
flag parameters: socket and socketpair
This patch adds support for flag values which are ORed to the type passwd
to socket and socketpair. The additional code is minimal. The flag
values in this implementation can and must match the O_* flags. This
avoids overhead in the conversion.
The internal functions sock_alloc_fd and sock_map_fd get a new parameters
and all callers are changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#define PORT 57392
/* For Linux these must be the same. */
#define SOCK_CLOEXEC O_CLOEXEC
int
main (void)
{
int fd;
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
{
puts ("socket(0) failed");
return 1;
}
int coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
puts ("socket(0) set close-on-exec flag");
return 1;
}
close (fd);
fd = socket (PF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0);
if (fd == -1)
{
puts ("socket(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
puts ("socket(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (fd);
int fds[2];
if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1)
{
puts ("socketpair(0) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
printf ("socketpair(0) set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, fds) == -1)
{
puts ("socketpair(SOCK_CLOEXEC) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
printf ("socketpair(SOCK_CLOEXEC) does not set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:17 -07:00
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2005-04-16 15:20:36 -07:00
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|
flag parameters: paccept
This patch is by far the most complex in the series. It adds a new syscall
paccept. This syscall differs from accept in that it adds (at the userlevel)
two additional parameters:
- a signal mask
- a flags value
The flags parameter can be used to set flag like SOCK_CLOEXEC. This is
imlpemented here as well. Some people argued that this is a property which
should be inherited from the file desriptor for the server but this is against
POSIX. Additionally, we really want the signal mask parameter as well
(similar to pselect, ppoll, etc). So an interface change in inevitable.
The flag value is the same as for socket and socketpair. I think diverging
here will only create confusion. Similar to the filesystem interfaces where
the use of the O_* constants differs, it is acceptable here.
The signal mask is handled as for pselect etc. The mask is temporarily
installed for the thread and removed before the call returns. I modeled the
code after pselect. If there is a problem it's likely also in pselect.
For architectures which use socketcall I maintained this interface instead of
adding a system call. The symmetry shouldn't be broken.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_CLOEXEC O_CLOEXEC
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
sleep (2);
pthread_kill ((pthread_t) arg, SIGUSR1);
return NULL;
}
static void
handler (int s)
{
}
int
main (void)
{
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
int coe = fcntl (s2, F_GETFD);
if (coe & FD_CLOEXEC)
{
puts ("paccept(0) set close-on-exec-flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_CLOEXEC);
if (s2 < 0)
{
puts ("paccept(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (s2, F_GETFD);
if ((coe & FD_CLOEXEC) == 0)
{
puts ("paccept(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
struct sigaction sa;
sa.sa_handler = handler;
sa.sa_flags = 0;
sigemptyset (&sa.sa_mask);
sigaction (SIGUSR1, &sa, NULL);
sigset_t ss;
pthread_sigmask (SIG_SETMASK, NULL, &ss);
sigaddset (&ss, SIGUSR1);
pthread_sigmask (SIG_SETMASK, &ss, NULL);
sigdelset (&ss, SIGUSR1);
alarm (4);
pthread_barrier_wait (&b);
errno = 0 ;
s2 = paccept (s, NULL, 0, &ss, 0);
if (s2 != -1 || errno != EINTR)
{
puts ("paccept did not fail with EINTR");
return 1;
}
close (s);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[akpm@linux-foundation.org: make it compile]
[akpm@linux-foundation.org: add sys_ni stub]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Roland McGrath <roland@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:20 -07:00
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2005-04-16 15:20:36 -07:00
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2017-12-05 23:29:09 +00:00
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2005-04-16 15:20:36 -07:00
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2017-12-05 23:29:09 +00:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:24 +01:00
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2005-04-16 15:20:36 -07:00
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2007-02-07 01:48:00 -05:00
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|
flag parameters: socket and socketpair
This patch adds support for flag values which are ORed to the type passwd
to socket and socketpair. The additional code is minimal. The flag
values in this implementation can and must match the O_* flags. This
avoids overhead in the conversion.
The internal functions sock_alloc_fd and sock_map_fd get a new parameters
and all callers are changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#define PORT 57392
/* For Linux these must be the same. */
#define SOCK_CLOEXEC O_CLOEXEC
int
main (void)
{
int fd;
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
{
puts ("socket(0) failed");
return 1;
}
int coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
puts ("socket(0) set close-on-exec flag");
return 1;
}
close (fd);
fd = socket (PF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0);
if (fd == -1)
{
puts ("socket(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
puts ("socket(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (fd);
int fds[2];
if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1)
{
puts ("socketpair(0) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
printf ("socketpair(0) set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, fds) == -1)
{
puts ("socketpair(SOCK_CLOEXEC) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
printf ("socketpair(SOCK_CLOEXEC) does not set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:17 -07:00
|
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|
flag parameters: NONBLOCK in socket and socketpair
This patch introduces support for the SOCK_NONBLOCK flag in socket,
socketpair, and paccept. To do this the internal function sock_attach_fd
gets an additional parameter which it uses to set the appropriate flag for
the file descriptor.
Given that in modern, scalable programs almost all socket connections are
non-blocking and the minimal additional cost for the new functionality
I see no reason not to add this code.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_NONBLOCK O_NONBLOCK
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
return NULL;
}
int
main (void)
{
int fd;
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
{
puts ("socket(0) failed");
return 1;
}
int fl = fcntl (fd, F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if (fl & O_NONBLOCK)
{
puts ("socket(0) set non-blocking mode");
return 1;
}
close (fd);
fd = socket (PF_INET, SOCK_STREAM|SOCK_NONBLOCK, 0);
if (fd == -1)
{
puts ("socket(SOCK_NONBLOCK) failed");
return 1;
}
fl = fcntl (fd, F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if ((fl & O_NONBLOCK) == 0)
{
puts ("socket(SOCK_NONBLOCK) does not set non-blocking mode");
return 1;
}
close (fd);
int fds[2];
if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1)
{
puts ("socketpair(0) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
fl = fcntl (fds[i], F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if (fl & O_NONBLOCK)
{
printf ("socketpair(0) set non-blocking mode for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_NONBLOCK, 0, fds) == -1)
{
puts ("socketpair(SOCK_NONBLOCK) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
fl = fcntl (fds[i], F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if ((fl & O_NONBLOCK) == 0)
{
printf ("socketpair(SOCK_NONBLOCK) does not set non-blocking mode for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
fl = fcntl (s2, F_GETFL);
if (fl & O_NONBLOCK)
{
puts ("paccept(0) set non-blocking mode");
return 1;
}
close (s2);
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_NONBLOCK);
if (s2 < 0)
{
puts ("paccept(SOCK_NONBLOCK) failed");
return 1;
}
fl = fcntl (s2, F_GETFL);
if ((fl & O_NONBLOCK) == 0)
{
puts ("paccept(SOCK_NONBLOCK) does not set non-blocking mode");
return 1;
}
close (s2);
close (s);
pthread_barrier_wait (&b);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:35 -07:00
|
|
|
|
flag parameters: socket and socketpair
This patch adds support for flag values which are ORed to the type passwd
to socket and socketpair. The additional code is minimal. The flag
values in this implementation can and must match the O_* flags. This
avoids overhead in the conversion.
The internal functions sock_alloc_fd and sock_map_fd get a new parameters
and all callers are changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#define PORT 57392
/* For Linux these must be the same. */
#define SOCK_CLOEXEC O_CLOEXEC
int
main (void)
{
int fd;
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
{
puts ("socket(0) failed");
return 1;
}
int coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
puts ("socket(0) set close-on-exec flag");
return 1;
}
close (fd);
fd = socket (PF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0);
if (fd == -1)
{
puts ("socket(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (fd, F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
puts ("socket(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (fd);
int fds[2];
if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1)
{
puts ("socketpair(0) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if (coe & FD_CLOEXEC)
{
printf ("socketpair(0) set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, fds) == -1)
{
puts ("socketpair(SOCK_CLOEXEC) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
coe = fcntl (fds[i], F_GETFD);
if (coe == -1)
{
puts ("fcntl failed");
return 1;
}
if ((coe & FD_CLOEXEC) == 0)
{
printf ("socketpair(SOCK_CLOEXEC) does not set close-on-exec flag for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:17 -07:00
|
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2005-04-16 15:20:36 -07:00
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|
flag parameters: paccept
This patch is by far the most complex in the series. It adds a new syscall
paccept. This syscall differs from accept in that it adds (at the userlevel)
two additional parameters:
- a signal mask
- a flags value
The flags parameter can be used to set flag like SOCK_CLOEXEC. This is
imlpemented here as well. Some people argued that this is a property which
should be inherited from the file desriptor for the server but this is against
POSIX. Additionally, we really want the signal mask parameter as well
(similar to pselect, ppoll, etc). So an interface change in inevitable.
The flag value is the same as for socket and socketpair. I think diverging
here will only create confusion. Similar to the filesystem interfaces where
the use of the O_* constants differs, it is acceptable here.
The signal mask is handled as for pselect etc. The mask is temporarily
installed for the thread and removed before the call returns. I modeled the
code after pselect. If there is a problem it's likely also in pselect.
For architectures which use socketcall I maintained this interface instead of
adding a system call. The symmetry shouldn't be broken.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_CLOEXEC O_CLOEXEC
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
sleep (2);
pthread_kill ((pthread_t) arg, SIGUSR1);
return NULL;
}
static void
handler (int s)
{
}
int
main (void)
{
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
int coe = fcntl (s2, F_GETFD);
if (coe & FD_CLOEXEC)
{
puts ("paccept(0) set close-on-exec-flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_CLOEXEC);
if (s2 < 0)
{
puts ("paccept(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (s2, F_GETFD);
if ((coe & FD_CLOEXEC) == 0)
{
puts ("paccept(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
struct sigaction sa;
sa.sa_handler = handler;
sa.sa_flags = 0;
sigemptyset (&sa.sa_mask);
sigaction (SIGUSR1, &sa, NULL);
sigset_t ss;
pthread_sigmask (SIG_SETMASK, NULL, &ss);
sigaddset (&ss, SIGUSR1);
pthread_sigmask (SIG_SETMASK, &ss, NULL);
sigdelset (&ss, SIGUSR1);
alarm (4);
pthread_barrier_wait (&b);
errno = 0 ;
s2 = paccept (s, NULL, 0, &ss, 0);
if (s2 != -1 || errno != EINTR)
{
puts ("paccept did not fail with EINTR");
return 1;
}
close (s);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[akpm@linux-foundation.org: make it compile]
[akpm@linux-foundation.org: add sys_ni stub]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Roland McGrath <roland@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:20 -07:00
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2017-12-05 23:28:38 +00:00
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2005-04-16 15:20:36 -07:00
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2017-12-05 23:28:38 +00:00
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2005-04-16 15:20:36 -07:00
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2017-12-05 23:28:38 +00:00
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2007-10-29 21:54:02 -07:00
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2013-12-09 22:42:20 +01:00
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2017-12-05 23:28:38 +00:00
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2012-08-17 23:54:15 -04:00
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|
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs update from Al Viro:
- big one - consolidation of descriptor-related logics; almost all of
that is moved to fs/file.c
(BTW, I'm seriously tempted to rename the result to fd.c. As it is,
we have a situation when file_table.c is about handling of struct
file and file.c is about handling of descriptor tables; the reasons
are historical - file_table.c used to be about a static array of
struct file we used to have way back).
A lot of stray ends got cleaned up and converted to saner primitives,
disgusting mess in android/binder.c is still disgusting, but at least
doesn't poke so much in descriptor table guts anymore. A bunch of
relatively minor races got fixed in process, plus an ext4 struct file
leak.
- related thing - fget_light() partially unuglified; see fdget() in
there (and yes, it generates the code as good as we used to have).
- also related - bits of Cyrill's procfs stuff that got entangled into
that work; _not_ all of it, just the initial move to fs/proc/fd.c and
switch of fdinfo to seq_file.
- Alex's fs/coredump.c spiltoff - the same story, had been easier to
take that commit than mess with conflicts. The rest is a separate
pile, this was just a mechanical code movement.
- a few misc patches all over the place. Not all for this cycle,
there'll be more (and quite a few currently sit in akpm's tree)."
Fix up trivial conflicts in the android binder driver, and some fairly
simple conflicts due to two different changes to the sock_alloc_file()
interface ("take descriptor handling from sock_alloc_file() to callers"
vs "net: Providing protocol type via system.sockprotoname xattr of
/proc/PID/fd entries" adding a dentry name to the socket)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (72 commits)
MAX_LFS_FILESIZE should be a loff_t
compat: fs: Generic compat_sys_sendfile implementation
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
btrfs: reada_extent doesn't need kref for refcount
coredump: move core dump functionality into its own file
coredump: prevent double-free on an error path in core dumper
usb/gadget: fix misannotations
fcntl: fix misannotations
ceph: don't abuse d_delete() on failure exits
hypfs: ->d_parent is never NULL or negative
vfs: delete surplus inode NULL check
switch simple cases of fget_light to fdget
new helpers: fdget()/fdput()
switch o2hb_region_dev_write() to fget_light()
proc_map_files_readdir(): don't bother with grabbing files
make get_file() return its argument
vhost_set_vring(): turn pollstart/pollstop into bool
switch prctl_set_mm_exe_file() to fget_light()
switch xfs_find_handle() to fget_light()
switch xfs_swapext() to fget_light()
...
2012-10-02 20:25:04 -07:00
|
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|
2015-08-12 15:59:47 +05:30
|
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2012-08-17 23:54:15 -04:00
|
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|
|
2017-12-05 23:28:38 +00:00
|
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|
|
|
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|
|
2012-08-17 23:54:15 -04:00
|
|
|
|
|
|
|
|
|
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs update from Al Viro:
- big one - consolidation of descriptor-related logics; almost all of
that is moved to fs/file.c
(BTW, I'm seriously tempted to rename the result to fd.c. As it is,
we have a situation when file_table.c is about handling of struct
file and file.c is about handling of descriptor tables; the reasons
are historical - file_table.c used to be about a static array of
struct file we used to have way back).
A lot of stray ends got cleaned up and converted to saner primitives,
disgusting mess in android/binder.c is still disgusting, but at least
doesn't poke so much in descriptor table guts anymore. A bunch of
relatively minor races got fixed in process, plus an ext4 struct file
leak.
- related thing - fget_light() partially unuglified; see fdget() in
there (and yes, it generates the code as good as we used to have).
- also related - bits of Cyrill's procfs stuff that got entangled into
that work; _not_ all of it, just the initial move to fs/proc/fd.c and
switch of fdinfo to seq_file.
- Alex's fs/coredump.c spiltoff - the same story, had been easier to
take that commit than mess with conflicts. The rest is a separate
pile, this was just a mechanical code movement.
- a few misc patches all over the place. Not all for this cycle,
there'll be more (and quite a few currently sit in akpm's tree)."
Fix up trivial conflicts in the android binder driver, and some fairly
simple conflicts due to two different changes to the sock_alloc_file()
interface ("take descriptor handling from sock_alloc_file() to callers"
vs "net: Providing protocol type via system.sockprotoname xattr of
/proc/PID/fd entries" adding a dentry name to the socket)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (72 commits)
MAX_LFS_FILESIZE should be a loff_t
compat: fs: Generic compat_sys_sendfile implementation
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
btrfs: reada_extent doesn't need kref for refcount
coredump: move core dump functionality into its own file
coredump: prevent double-free on an error path in core dumper
usb/gadget: fix misannotations
fcntl: fix misannotations
ceph: don't abuse d_delete() on failure exits
hypfs: ->d_parent is never NULL or negative
vfs: delete surplus inode NULL check
switch simple cases of fget_light to fdget
new helpers: fdget()/fdput()
switch o2hb_region_dev_write() to fget_light()
proc_map_files_readdir(): don't bother with grabbing files
make get_file() return its argument
vhost_set_vring(): turn pollstart/pollstop into bool
switch prctl_set_mm_exe_file() to fget_light()
switch xfs_find_handle() to fget_light()
switch xfs_swapext() to fget_light()
...
2012-10-02 20:25:04 -07:00
|
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|
2012-08-17 23:54:15 -04:00
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2017-12-05 23:28:38 +00:00
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2007-02-07 01:48:00 -05:00
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2008-12-14 04:57:47 -05:00
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2013-12-09 22:42:20 +01:00
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2007-02-07 01:48:00 -05:00
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2013-12-09 22:42:20 +01:00
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2005-04-16 15:20:36 -07:00
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2017-12-05 23:28:38 +00:00
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2013-12-09 22:42:20 +01:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:23 +01:00
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2005-04-16 15:20:36 -07:00
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2008-07-19 22:35:47 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2007-04-10 20:10:33 -07:00
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2012-03-11 12:51:50 +00:00
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2006-09-01 00:19:31 -07:00
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2008-07-19 22:35:47 -07:00
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2006-09-01 00:19:31 -07:00
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2006-03-20 22:27:12 -08:00
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2006-09-01 00:19:31 -07:00
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2008-07-19 22:35:47 -07:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:24 +01:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2007-12-08 00:12:33 -08:00
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2006-09-01 00:19:31 -07:00
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2008-03-31 19:41:14 -07:00
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2012-04-15 05:58:06 +00:00
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2007-12-08 00:12:33 -08:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:23 +01:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 17:13:49 -08:00
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2006-03-20 22:27:12 -08:00
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2008-07-19 22:35:47 -07:00
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2005-04-16 15:20:36 -07:00
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flag parameters: NONBLOCK in socket and socketpair
This patch introduces support for the SOCK_NONBLOCK flag in socket,
socketpair, and paccept. To do this the internal function sock_attach_fd
gets an additional parameter which it uses to set the appropriate flag for
the file descriptor.
Given that in modern, scalable programs almost all socket connections are
non-blocking and the minimal additional cost for the new functionality
I see no reason not to add this code.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_NONBLOCK O_NONBLOCK
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
return NULL;
}
int
main (void)
{
int fd;
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
{
puts ("socket(0) failed");
return 1;
}
int fl = fcntl (fd, F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if (fl & O_NONBLOCK)
{
puts ("socket(0) set non-blocking mode");
return 1;
}
close (fd);
fd = socket (PF_INET, SOCK_STREAM|SOCK_NONBLOCK, 0);
if (fd == -1)
{
puts ("socket(SOCK_NONBLOCK) failed");
return 1;
}
fl = fcntl (fd, F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if ((fl & O_NONBLOCK) == 0)
{
puts ("socket(SOCK_NONBLOCK) does not set non-blocking mode");
return 1;
}
close (fd);
int fds[2];
if (socketpair (PF_UNIX, SOCK_STREAM, 0, fds) == -1)
{
puts ("socketpair(0) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
fl = fcntl (fds[i], F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if (fl & O_NONBLOCK)
{
printf ("socketpair(0) set non-blocking mode for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
if (socketpair (PF_UNIX, SOCK_STREAM|SOCK_NONBLOCK, 0, fds) == -1)
{
puts ("socketpair(SOCK_NONBLOCK) failed");
return 1;
}
for (int i = 0; i < 2; ++i)
{
fl = fcntl (fds[i], F_GETFL);
if (fl == -1)
{
puts ("fcntl failed");
return 1;
}
if ((fl & O_NONBLOCK) == 0)
{
printf ("socketpair(SOCK_NONBLOCK) does not set non-blocking mode for fds[%d]\n", i);
return 1;
}
close (fds[i]);
}
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
fl = fcntl (s2, F_GETFL);
if (fl & O_NONBLOCK)
{
puts ("paccept(0) set non-blocking mode");
return 1;
}
close (s2);
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_NONBLOCK);
if (s2 < 0)
{
puts ("paccept(SOCK_NONBLOCK) failed");
return 1;
}
fl = fcntl (s2, F_GETFL);
if ((fl & O_NONBLOCK) == 0)
{
puts ("paccept(SOCK_NONBLOCK) does not set non-blocking mode");
return 1;
}
close (s2);
close (s);
pthread_barrier_wait (&b);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:35 -07:00
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flag parameters: paccept
This patch is by far the most complex in the series. It adds a new syscall
paccept. This syscall differs from accept in that it adds (at the userlevel)
two additional parameters:
- a signal mask
- a flags value
The flags parameter can be used to set flag like SOCK_CLOEXEC. This is
imlpemented here as well. Some people argued that this is a property which
should be inherited from the file desriptor for the server but this is against
POSIX. Additionally, we really want the signal mask parameter as well
(similar to pselect, ppoll, etc). So an interface change in inevitable.
The flag value is the same as for socket and socketpair. I think diverging
here will only create confusion. Similar to the filesystem interfaces where
the use of the O_* constants differs, it is acceptable here.
The signal mask is handled as for pselect etc. The mask is temporarily
installed for the thread and removed before the call returns. I modeled the
code after pselect. If there is a problem it's likely also in pselect.
For architectures which use socketcall I maintained this interface instead of
adding a system call. The symmetry shouldn't be broken.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_CLOEXEC O_CLOEXEC
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
sleep (2);
pthread_kill ((pthread_t) arg, SIGUSR1);
return NULL;
}
static void
handler (int s)
{
}
int
main (void)
{
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
int coe = fcntl (s2, F_GETFD);
if (coe & FD_CLOEXEC)
{
puts ("paccept(0) set close-on-exec-flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_CLOEXEC);
if (s2 < 0)
{
puts ("paccept(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (s2, F_GETFD);
if ((coe & FD_CLOEXEC) == 0)
{
puts ("paccept(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
struct sigaction sa;
sa.sa_handler = handler;
sa.sa_flags = 0;
sigemptyset (&sa.sa_mask);
sigaction (SIGUSR1, &sa, NULL);
sigset_t ss;
pthread_sigmask (SIG_SETMASK, NULL, &ss);
sigaddset (&ss, SIGUSR1);
pthread_sigmask (SIG_SETMASK, &ss, NULL);
sigdelset (&ss, SIGUSR1);
alarm (4);
pthread_barrier_wait (&b);
errno = 0 ;
s2 = paccept (s, NULL, 0, &ss, 0);
if (s2 != -1 || errno != EINTR)
{
puts ("paccept did not fail with EINTR");
return 1;
}
close (s);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[akpm@linux-foundation.org: make it compile]
[akpm@linux-foundation.org: add sys_ni stub]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Roland McGrath <roland@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:20 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs update from Al Viro:
- big one - consolidation of descriptor-related logics; almost all of
that is moved to fs/file.c
(BTW, I'm seriously tempted to rename the result to fd.c. As it is,
we have a situation when file_table.c is about handling of struct
file and file.c is about handling of descriptor tables; the reasons
are historical - file_table.c used to be about a static array of
struct file we used to have way back).
A lot of stray ends got cleaned up and converted to saner primitives,
disgusting mess in android/binder.c is still disgusting, but at least
doesn't poke so much in descriptor table guts anymore. A bunch of
relatively minor races got fixed in process, plus an ext4 struct file
leak.
- related thing - fget_light() partially unuglified; see fdget() in
there (and yes, it generates the code as good as we used to have).
- also related - bits of Cyrill's procfs stuff that got entangled into
that work; _not_ all of it, just the initial move to fs/proc/fd.c and
switch of fdinfo to seq_file.
- Alex's fs/coredump.c spiltoff - the same story, had been easier to
take that commit than mess with conflicts. The rest is a separate
pile, this was just a mechanical code movement.
- a few misc patches all over the place. Not all for this cycle,
there'll be more (and quite a few currently sit in akpm's tree)."
Fix up trivial conflicts in the android binder driver, and some fairly
simple conflicts due to two different changes to the sock_alloc_file()
interface ("take descriptor handling from sock_alloc_file() to callers"
vs "net: Providing protocol type via system.sockprotoname xattr of
/proc/PID/fd entries" adding a dentry name to the socket)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (72 commits)
MAX_LFS_FILESIZE should be a loff_t
compat: fs: Generic compat_sys_sendfile implementation
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
btrfs: reada_extent doesn't need kref for refcount
coredump: move core dump functionality into its own file
coredump: prevent double-free on an error path in core dumper
usb/gadget: fix misannotations
fcntl: fix misannotations
ceph: don't abuse d_delete() on failure exits
hypfs: ->d_parent is never NULL or negative
vfs: delete surplus inode NULL check
switch simple cases of fget_light to fdget
new helpers: fdget()/fdput()
switch o2hb_region_dev_write() to fget_light()
proc_map_files_readdir(): don't bother with grabbing files
make get_file() return its argument
vhost_set_vring(): turn pollstart/pollstop into bool
switch prctl_set_mm_exe_file() to fget_light()
switch xfs_find_handle() to fget_light()
switch xfs_swapext() to fget_light()
...
2012-10-02 20:25:04 -07:00
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2015-08-12 15:59:47 +05:30
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2012-08-17 23:54:15 -04:00
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2017-03-09 08:09:05 +00:00
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2012-03-11 12:51:50 +00:00
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2006-04-01 01:00:14 -08:00
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2006-03-20 17:13:49 -08:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:23 +01:00
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flag parameters: paccept
This patch is by far the most complex in the series. It adds a new syscall
paccept. This syscall differs from accept in that it adds (at the userlevel)
two additional parameters:
- a signal mask
- a flags value
The flags parameter can be used to set flag like SOCK_CLOEXEC. This is
imlpemented here as well. Some people argued that this is a property which
should be inherited from the file desriptor for the server but this is against
POSIX. Additionally, we really want the signal mask parameter as well
(similar to pselect, ppoll, etc). So an interface change in inevitable.
The flag value is the same as for socket and socketpair. I think diverging
here will only create confusion. Similar to the filesystem interfaces where
the use of the O_* constants differs, it is acceptable here.
The signal mask is handled as for pselect etc. The mask is temporarily
installed for the thread and removed before the call returns. I modeled the
code after pselect. If there is a problem it's likely also in pselect.
For architectures which use socketcall I maintained this interface instead of
adding a system call. The symmetry shouldn't be broken.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_CLOEXEC O_CLOEXEC
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
sleep (2);
pthread_kill ((pthread_t) arg, SIGUSR1);
return NULL;
}
static void
handler (int s)
{
}
int
main (void)
{
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
int coe = fcntl (s2, F_GETFD);
if (coe & FD_CLOEXEC)
{
puts ("paccept(0) set close-on-exec-flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_CLOEXEC);
if (s2 < 0)
{
puts ("paccept(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (s2, F_GETFD);
if ((coe & FD_CLOEXEC) == 0)
{
puts ("paccept(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
struct sigaction sa;
sa.sa_handler = handler;
sa.sa_flags = 0;
sigemptyset (&sa.sa_mask);
sigaction (SIGUSR1, &sa, NULL);
sigset_t ss;
pthread_sigmask (SIG_SETMASK, NULL, &ss);
sigaddset (&ss, SIGUSR1);
pthread_sigmask (SIG_SETMASK, &ss, NULL);
sigdelset (&ss, SIGUSR1);
alarm (4);
pthread_barrier_wait (&b);
errno = 0 ;
s2 = paccept (s, NULL, 0, &ss, 0);
if (s2 != -1 || errno != EINTR)
{
puts ("paccept did not fail with EINTR");
return 1;
}
close (s);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[akpm@linux-foundation.org: make it compile]
[akpm@linux-foundation.org: add sys_ni stub]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Roland McGrath <roland@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:20 -07:00
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reintroduce accept4
Introduce a new accept4() system call. The addition of this system call
matches analogous changes in 2.6.27 (dup3(), evenfd2(), signalfd4(),
inotify_init1(), epoll_create1(), pipe2()) which added new system calls
that differed from analogous traditional system calls in adding a flags
argument that can be used to access additional functionality.
The accept4() system call is exactly the same as accept(), except that
it adds a flags bit-mask argument. Two flags are initially implemented.
(Most of the new system calls in 2.6.27 also had both of these flags.)
SOCK_CLOEXEC causes the close-on-exec (FD_CLOEXEC) flag to be enabled
for the new file descriptor returned by accept4(). This is a useful
security feature to avoid leaking information in a multithreaded
program where one thread is doing an accept() at the same time as
another thread is doing a fork() plus exec(). More details here:
http://udrepper.livejournal.com/20407.html "Secure File Descriptor Handling",
Ulrich Drepper).
The other flag is SOCK_NONBLOCK, which causes the O_NONBLOCK flag
to be enabled on the new open file description created by accept4().
(This flag is merely a convenience, saving the use of additional calls
fcntl(F_GETFL) and fcntl (F_SETFL) to achieve the same result.
Here's a test program. Works on x86-32. Should work on x86-64, but
I (mtk) don't have a system to hand to test with.
It tests accept4() with each of the four possible combinations of
SOCK_CLOEXEC and SOCK_NONBLOCK set/clear in 'flags', and verifies
that the appropriate flags are set on the file descriptor/open file
description returned by accept4().
I tested Ulrich's patch in this thread by applying against 2.6.28-rc2,
and it passes according to my test program.
/* test_accept4.c
Copyright (C) 2008, Linux Foundation, written by Michael Kerrisk
<mtk.manpages@gmail.com>
Licensed under the GNU GPLv2 or later.
*/
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#define PORT_NUM 33333
#define die(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)
/**********************************************************************/
/* The following is what we need until glibc gets a wrapper for
accept4() */
/* Flags for socket(), socketpair(), accept4() */
#ifndef SOCK_CLOEXEC
#define SOCK_CLOEXEC O_CLOEXEC
#endif
#ifndef SOCK_NONBLOCK
#define SOCK_NONBLOCK O_NONBLOCK
#endif
#ifdef __x86_64__
#define SYS_accept4 288
#elif __i386__
#define USE_SOCKETCALL 1
#define SYS_ACCEPT4 18
#else
#error "Sorry -- don't know the syscall # on this architecture"
#endif
static int
accept4(int fd, struct sockaddr *sockaddr, socklen_t *addrlen, int flags)
{
printf("Calling accept4(): flags = %x", flags);
if (flags != 0) {
printf(" (");
if (flags & SOCK_CLOEXEC)
printf("SOCK_CLOEXEC");
if ((flags & SOCK_CLOEXEC) && (flags & SOCK_NONBLOCK))
printf(" ");
if (flags & SOCK_NONBLOCK)
printf("SOCK_NONBLOCK");
printf(")");
}
printf("\n");
#if USE_SOCKETCALL
long args[6];
args[0] = fd;
args[1] = (long) sockaddr;
args[2] = (long) addrlen;
args[3] = flags;
return syscall(SYS_socketcall, SYS_ACCEPT4, args);
#else
return syscall(SYS_accept4, fd, sockaddr, addrlen, flags);
#endif
}
/**********************************************************************/
static int
do_test(int lfd, struct sockaddr_in *conn_addr,
int closeonexec_flag, int nonblock_flag)
{
int connfd, acceptfd;
int fdf, flf, fdf_pass, flf_pass;
struct sockaddr_in claddr;
socklen_t addrlen;
printf("=======================================\n");
connfd = socket(AF_INET, SOCK_STREAM, 0);
if (connfd == -1)
die("socket");
if (connect(connfd, (struct sockaddr *) conn_addr,
sizeof(struct sockaddr_in)) == -1)
die("connect");
addrlen = sizeof(struct sockaddr_in);
acceptfd = accept4(lfd, (struct sockaddr *) &claddr, &addrlen,
closeonexec_flag | nonblock_flag);
if (acceptfd == -1) {
perror("accept4()");
close(connfd);
return 0;
}
fdf = fcntl(acceptfd, F_GETFD);
if (fdf == -1)
die("fcntl:F_GETFD");
fdf_pass = ((fdf & FD_CLOEXEC) != 0) ==
((closeonexec_flag & SOCK_CLOEXEC) != 0);
printf("Close-on-exec flag is %sset (%s); ",
(fdf & FD_CLOEXEC) ? "" : "not ",
fdf_pass ? "OK" : "failed");
flf = fcntl(acceptfd, F_GETFL);
if (flf == -1)
die("fcntl:F_GETFD");
flf_pass = ((flf & O_NONBLOCK) != 0) ==
((nonblock_flag & SOCK_NONBLOCK) !=0);
printf("nonblock flag is %sset (%s)\n",
(flf & O_NONBLOCK) ? "" : "not ",
flf_pass ? "OK" : "failed");
close(acceptfd);
close(connfd);
printf("Test result: %s\n", (fdf_pass && flf_pass) ? "PASS" : "FAIL");
return fdf_pass && flf_pass;
}
static int
create_listening_socket(int port_num)
{
struct sockaddr_in svaddr;
int lfd;
int optval;
memset(&svaddr, 0, sizeof(struct sockaddr_in));
svaddr.sin_family = AF_INET;
svaddr.sin_addr.s_addr = htonl(INADDR_ANY);
svaddr.sin_port = htons(port_num);
lfd = socket(AF_INET, SOCK_STREAM, 0);
if (lfd == -1)
die("socket");
optval = 1;
if (setsockopt(lfd, SOL_SOCKET, SO_REUSEADDR, &optval,
sizeof(optval)) == -1)
die("setsockopt");
if (bind(lfd, (struct sockaddr *) &svaddr,
sizeof(struct sockaddr_in)) == -1)
die("bind");
if (listen(lfd, 5) == -1)
die("listen");
return lfd;
}
int
main(int argc, char *argv[])
{
struct sockaddr_in conn_addr;
int lfd;
int port_num;
int passed;
passed = 1;
port_num = (argc > 1) ? atoi(argv[1]) : PORT_NUM;
memset(&conn_addr, 0, sizeof(struct sockaddr_in));
conn_addr.sin_family = AF_INET;
conn_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
conn_addr.sin_port = htons(port_num);
lfd = create_listening_socket(port_num);
if (!do_test(lfd, &conn_addr, 0, 0))
passed = 0;
if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, 0))
passed = 0;
if (!do_test(lfd, &conn_addr, 0, SOCK_NONBLOCK))
passed = 0;
if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, SOCK_NONBLOCK))
passed = 0;
close(lfd);
exit(passed ? EXIT_SUCCESS : EXIT_FAILURE);
}
[mtk.manpages@gmail.com: rewrote changelog, updated test program]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Tested-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: <linux-api@vger.kernel.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-19 15:36:14 -08:00
|
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|
|
flag parameters: paccept
This patch is by far the most complex in the series. It adds a new syscall
paccept. This syscall differs from accept in that it adds (at the userlevel)
two additional parameters:
- a signal mask
- a flags value
The flags parameter can be used to set flag like SOCK_CLOEXEC. This is
imlpemented here as well. Some people argued that this is a property which
should be inherited from the file desriptor for the server but this is against
POSIX. Additionally, we really want the signal mask parameter as well
(similar to pselect, ppoll, etc). So an interface change in inevitable.
The flag value is the same as for socket and socketpair. I think diverging
here will only create confusion. Similar to the filesystem interfaces where
the use of the O_* constants differs, it is acceptable here.
The signal mask is handled as for pselect etc. The mask is temporarily
installed for the thread and removed before the call returns. I modeled the
code after pselect. If there is a problem it's likely also in pselect.
For architectures which use socketcall I maintained this interface instead of
adding a system call. The symmetry shouldn't be broken.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_CLOEXEC O_CLOEXEC
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
sleep (2);
pthread_kill ((pthread_t) arg, SIGUSR1);
return NULL;
}
static void
handler (int s)
{
}
int
main (void)
{
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
int coe = fcntl (s2, F_GETFD);
if (coe & FD_CLOEXEC)
{
puts ("paccept(0) set close-on-exec-flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_CLOEXEC);
if (s2 < 0)
{
puts ("paccept(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (s2, F_GETFD);
if ((coe & FD_CLOEXEC) == 0)
{
puts ("paccept(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
struct sigaction sa;
sa.sa_handler = handler;
sa.sa_flags = 0;
sigemptyset (&sa.sa_mask);
sigaction (SIGUSR1, &sa, NULL);
sigset_t ss;
pthread_sigmask (SIG_SETMASK, NULL, &ss);
sigaddset (&ss, SIGUSR1);
pthread_sigmask (SIG_SETMASK, &ss, NULL);
sigdelset (&ss, SIGUSR1);
alarm (4);
pthread_barrier_wait (&b);
errno = 0 ;
s2 = paccept (s, NULL, 0, &ss, 0);
if (s2 != -1 || errno != EINTR)
{
puts ("paccept did not fail with EINTR");
return 1;
}
close (s);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[akpm@linux-foundation.org: make it compile]
[akpm@linux-foundation.org: add sys_ni stub]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Roland McGrath <roland@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:20 -07:00
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2009-01-14 14:14:23 +01:00
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2005-04-16 15:20:36 -07:00
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2008-07-19 22:35:47 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2012-03-11 12:51:50 +00:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2009-01-14 14:14:23 +01:00
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2006-09-01 00:19:31 -07:00
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2008-07-19 22:35:47 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2012-03-11 12:51:50 +00:00
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2006-09-01 00:19:31 -07:00
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2006-03-20 22:27:12 -08:00
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2009-01-14 14:14:24 +01:00
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2012-04-15 05:58:06 +00:00
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2009-01-14 14:14:24 +01:00
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2005-04-16 15:20:36 -07:00
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2008-07-19 22:35:47 -07:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2015-03-21 19:12:32 -04:00
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2007-11-14 16:01:43 -08:00
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2007-02-08 15:06:08 -08:00
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2006-03-20 22:27:12 -08:00
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2006-09-01 00:19:31 -07:00
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2006-03-20 22:27:12 -08:00
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2012-03-11 12:51:50 +00:00
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2005-04-16 15:20:36 -07:00
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2008-07-19 22:35:47 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2014-12-11 00:02:50 -05:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2007-11-14 16:01:43 -08:00
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2007-02-08 15:06:08 -08:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:24 +01:00
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2012-04-15 05:58:06 +00:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:24 +01:00
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2012-04-15 05:58:06 +00:00
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2009-01-14 14:14:24 +01:00
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2005-04-16 15:20:36 -07:00
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2008-07-19 22:35:47 -07:00
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2006-09-01 00:19:31 -07:00
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2006-03-20 22:27:12 -08:00
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2015-03-21 19:12:32 -04:00
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2007-11-14 16:01:43 -08:00
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2005-04-16 15:20:36 -07:00
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2007-11-14 16:01:43 -08:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2013-11-21 03:14:22 +01:00
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2015-12-15 10:46:17 -08:00
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2017-03-08 18:08:16 +01:00
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2005-04-16 15:20:36 -07:00
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2015-03-14 21:13:46 -04:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2012-03-11 12:51:50 +00:00
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2008-07-19 22:35:47 -07:00
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2006-09-01 00:19:31 -07:00
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2007-11-14 16:01:43 -08:00
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2005-04-16 15:20:36 -07:00
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2005-04-16 15:20:36 -07:00
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2014-04-16 09:32:48 +02:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:23 +01:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2006-09-01 00:19:31 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:23 +01:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2009-01-14 14:14:09 +01:00
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2005-04-16 15:20:36 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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2005-04-16 15:20:36 -07:00
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2011-08-04 14:07:40 +00:00
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2015-03-21 19:29:06 -04:00
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2013-10-03 00:27:20 +03:00
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2017-06-27 19:32:04 -04:00
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2014-11-10 20:23:13 -05:00
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2017-06-27 19:32:04 -04:00
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2013-10-03 00:27:20 +03:00
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2014-03-11 11:58:27 +00:00
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2017-07-21 18:49:45 +02:00
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2017-06-27 19:32:04 -04:00
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2014-09-08 14:49:59 -07:00
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2014-03-11 11:58:27 +00:00
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2013-10-03 00:27:20 +03:00
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2013-11-27 15:40:21 +03:00
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2014-11-10 20:23:13 -05:00
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2017-06-27 19:32:04 -04:00
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2014-11-10 20:23:13 -05:00
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2017-06-27 19:32:04 -04:00
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2014-11-10 20:23:13 -05:00
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2017-07-21 18:49:45 +02:00
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2014-11-10 20:23:13 -05:00
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2017-06-27 19:32:04 -04:00
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2014-11-10 20:23:13 -05:00
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2015-03-19 12:31:25 -07:00
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2017-06-27 19:32:04 -04:00
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2015-03-21 19:29:06 -04:00
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2013-10-03 00:27:20 +03:00
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|
separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
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2012-04-15 05:58:06 +00:00
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2016-03-07 14:11:02 -08:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2008-07-19 22:35:47 -07:00
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2005-04-16 15:20:36 -07:00
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2005-09-26 14:28:02 -07:00
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2016-12-08 18:21:53 +05:30
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2014-12-11 00:02:50 -05:00
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2014-11-10 20:23:13 -05:00
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2006-09-01 00:19:31 -07:00
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2014-11-10 20:23:13 -05:00
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2005-04-16 15:20:36 -07:00
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2014-11-09 22:33:45 -05:00
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2014-11-10 20:23:13 -05:00
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2014-11-09 22:33:45 -05:00
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2014-11-10 20:23:13 -05:00
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2006-09-01 00:19:31 -07:00
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2015-03-21 19:29:06 -04:00
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2005-04-16 15:20:36 -07:00
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2011-05-02 20:21:35 +00:00
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2005-04-16 15:20:36 -07:00
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2016-03-07 14:11:02 -08:00
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2011-05-02 20:21:35 +00:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2011-05-02 20:21:35 +00:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2011-05-02 20:21:35 +00:00
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2005-04-16 15:20:36 -07:00
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2017-01-04 13:24:19 -05:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2011-05-02 20:21:35 +00:00
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2005-04-16 15:20:36 -07:00
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2010-09-07 03:55:00 +00:00
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2011-05-02 20:21:35 +00:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2011-05-02 20:21:35 +00:00
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2005-04-16 15:20:36 -07:00
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2011-05-02 20:21:35 +00:00
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2005-04-16 15:20:36 -07:00
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2011-05-02 20:21:35 +00:00
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2011-08-04 14:07:40 +00:00
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2011-08-24 19:45:03 -07:00
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2011-08-04 14:07:40 +00:00
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2014-12-11 00:02:50 -05:00
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2011-08-04 14:07:40 +00:00
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2014-12-11 00:02:50 -05:00
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2011-08-04 14:07:40 +00:00
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2011-08-24 19:45:03 -07:00
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2011-08-04 14:07:40 +00:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2015-03-21 19:29:06 -04:00
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2011-05-02 20:21:35 +00:00
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|
separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
|
|
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|
2011-05-02 20:21:35 +00:00
|
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|
|
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|
net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
To: linux-kernel@vger.kernel.org
Cc: x86@kernel.org, trinity@vger.kernel.org, Andy Lutomirski <luto@amacapital.net>, netdev@vger.kernel.org, "David S.
Miller" <davem@davemloft.net>
Subject: [PATCH 5/5] net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
MSG_CMSG_COMPAT is (AFAIK) not intended to be part of the API --
it's a hack that steals a bit to indicate to other networking code
that a compat entry was used. So don't allow it from a non-compat
syscall.
This prevents an oops when running this code:
int main()
{
int s;
struct sockaddr_in addr;
struct msghdr *hdr;
char *highpage = mmap((void*)(TASK_SIZE_MAX - 4096), 4096,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
if (highpage == MAP_FAILED)
err(1, "mmap");
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (s == -1)
err(1, "socket");
addr.sin_family = AF_INET;
addr.sin_port = htons(1);
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (connect(s, (struct sockaddr*)&addr, sizeof(addr)) != 0)
err(1, "connect");
void *evil = highpage + 4096 - COMPAT_MSGHDR_SIZE;
printf("Evil address is %p\n", evil);
if (syscall(__NR_sendmmsg, s, evil, 1, MSG_CMSG_COMPAT) < 0)
err(1, "sendmmsg");
return 0;
}
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-22 14:07:44 -07:00
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2011-05-02 20:21:35 +00:00
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2016-03-07 14:11:02 -08:00
|
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2011-05-02 20:21:35 +00:00
|
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2006-03-20 22:27:12 -08:00
|
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2006-09-01 00:19:31 -07:00
|
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2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
|
|
|
|
2013-06-05 19:38:26 +00:00
|
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2011-05-02 20:21:35 +00:00
|
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2011-08-04 14:07:40 +00:00
|
|
|
|
2016-03-07 14:11:03 -08:00
|
|
|
|
2011-05-02 20:21:35 +00:00
|
|
|
|
2011-08-04 14:07:39 +00:00
|
|
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2011-05-02 20:21:35 +00:00
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2011-08-04 14:07:40 +00:00
|
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|
|
2011-05-02 20:21:35 +00:00
|
|
|
|
|
|
|
|
|
2011-08-04 14:07:38 +00:00
|
|
|
|
2016-03-07 14:11:03 -08:00
|
|
|
|
2011-05-02 20:21:35 +00:00
|
|
|
|
|
|
|
|
|
2016-03-07 14:11:03 -08:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2011-05-02 20:21:35 +00:00
|
|
|
|
separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
|
|
|
|
2016-03-07 14:11:02 -08:00
|
|
|
|
2011-05-02 20:21:35 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2013-06-05 19:38:26 +00:00
|
|
|
|
separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
|
|
|
|
2016-03-07 14:11:02 -08:00
|
|
|
|
2011-05-02 20:21:35 +00:00
|
|
|
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2016-11-04 15:36:49 -04:00
|
|
|
|
|
|
|
|
|
2016-01-08 08:37:20 -08:00
|
|
|
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2011-05-02 20:21:35 +00:00
|
|
|
|
|
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|
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|
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|
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2011-08-04 14:07:38 +00:00
|
|
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|
|
|
|
|
|
2011-05-02 20:21:35 +00:00
|
|
|
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|
|
net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
To: linux-kernel@vger.kernel.org
Cc: x86@kernel.org, trinity@vger.kernel.org, Andy Lutomirski <luto@amacapital.net>, netdev@vger.kernel.org, "David S.
Miller" <davem@davemloft.net>
Subject: [PATCH 5/5] net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
MSG_CMSG_COMPAT is (AFAIK) not intended to be part of the API --
it's a hack that steals a bit to indicate to other networking code
that a compat entry was used. So don't allow it from a non-compat
syscall.
This prevents an oops when running this code:
int main()
{
int s;
struct sockaddr_in addr;
struct msghdr *hdr;
char *highpage = mmap((void*)(TASK_SIZE_MAX - 4096), 4096,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
if (highpage == MAP_FAILED)
err(1, "mmap");
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (s == -1)
err(1, "socket");
addr.sin_family = AF_INET;
addr.sin_port = htons(1);
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (connect(s, (struct sockaddr*)&addr, sizeof(addr)) != 0)
err(1, "connect");
void *evil = highpage + 4096 - COMPAT_MSGHDR_SIZE;
printf("Evil address is %p\n", evil);
if (syscall(__NR_sendmmsg, s, evil, 1, MSG_CMSG_COMPAT) < 0)
err(1, "sendmmsg");
return 0;
}
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-22 14:07:44 -07:00
|
|
|
|
|
|
|
|
|
2011-05-02 20:21:35 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
|
|
|
|
2012-04-15 05:58:06 +00:00
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-09-01 00:19:31 -07:00
|
|
|
|
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|
|
|
|
2005-04-16 15:20:36 -07:00
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|
2006-09-01 00:19:31 -07:00
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2015-03-14 21:13:46 -04:00
|
|
|
|
2014-11-10 20:23:13 -05:00
|
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|
|
2005-04-16 15:20:36 -07:00
|
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|
|
|
|
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2008-07-19 22:35:47 -07:00
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2005-04-16 15:20:36 -07:00
|
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2014-11-10 20:23:13 -05:00
|
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2006-09-01 00:19:31 -07:00
|
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|
2014-11-10 20:23:13 -05:00
|
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|
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2005-04-16 15:20:36 -07:00
|
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2013-11-21 03:14:22 +01:00
|
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|
|
2014-11-10 20:23:13 -05:00
|
|
|
|
2013-11-21 03:14:22 +01:00
|
|
|
|
2014-11-10 20:23:13 -05:00
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2015-03-21 19:29:06 -04:00
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2009-10-12 23:40:10 -07:00
|
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2006-09-01 00:19:31 -07:00
|
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|
|
2013-11-21 03:14:22 +01:00
|
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|
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|
2005-04-16 15:20:36 -07:00
|
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|
|
|
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2015-03-14 21:13:46 -04:00
|
|
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2005-04-16 15:20:36 -07:00
|
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2012-03-11 12:51:50 +00:00
|
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2009-10-12 23:40:10 -07:00
|
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2006-09-01 00:19:31 -07:00
|
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2005-04-16 15:20:36 -07:00
|
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2009-10-12 23:40:10 -07:00
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2005-09-16 16:51:01 -07:00
|
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2005-04-16 15:20:36 -07:00
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2009-10-12 23:40:10 -07:00
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2005-04-16 15:20:36 -07:00
|
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|
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2009-10-12 23:40:10 -07:00
|
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2005-04-16 15:20:36 -07:00
|
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2015-03-21 19:29:06 -04:00
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2009-10-12 23:40:10 -07:00
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|
|
|
separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
|
|
|
|
2009-10-12 23:40:10 -07:00
|
|
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net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
To: linux-kernel@vger.kernel.org
Cc: x86@kernel.org, trinity@vger.kernel.org, Andy Lutomirski <luto@amacapital.net>, netdev@vger.kernel.org, "David S.
Miller" <davem@davemloft.net>
Subject: [PATCH 5/5] net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
MSG_CMSG_COMPAT is (AFAIK) not intended to be part of the API --
it's a hack that steals a bit to indicate to other networking code
that a compat entry was used. So don't allow it from a non-compat
syscall.
This prevents an oops when running this code:
int main()
{
int s;
struct sockaddr_in addr;
struct msghdr *hdr;
char *highpage = mmap((void*)(TASK_SIZE_MAX - 4096), 4096,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
if (highpage == MAP_FAILED)
err(1, "mmap");
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (s == -1)
err(1, "socket");
addr.sin_family = AF_INET;
addr.sin_port = htons(1);
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (connect(s, (struct sockaddr*)&addr, sizeof(addr)) != 0)
err(1, "connect");
void *evil = highpage + 4096 - COMPAT_MSGHDR_SIZE;
printf("Evil address is %p\n", evil);
if (syscall(__NR_sendmmsg, s, evil, 1, MSG_CMSG_COMPAT) < 0)
err(1, "sendmmsg");
return 0;
}
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-22 14:07:44 -07:00
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2009-10-12 23:40:10 -07:00
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2013-06-05 19:38:26 +00:00
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2009-10-12 23:40:10 -07:00
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2006-03-20 22:27:12 -08:00
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2005-04-16 15:20:36 -07:00
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separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
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2013-06-05 19:38:26 +00:00
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2009-10-12 23:40:10 -07:00
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2009-12-01 08:47:26 +00:00
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2009-10-12 23:40:10 -07:00
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2016-05-19 17:09:05 -07:00
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2009-10-12 23:40:10 -07:00
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2017-02-21 18:35:51 +01:00
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2009-10-12 23:40:10 -07:00
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2017-02-21 18:35:51 +01:00
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2009-10-12 23:40:10 -07:00
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2009-12-01 08:47:26 +00:00
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2009-10-12 23:40:10 -07:00
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2009-12-01 08:47:26 +00:00
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separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
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2013-06-05 19:38:26 +00:00
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2009-12-01 08:47:26 +00:00
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2013-06-05 19:38:26 +00:00
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separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
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2013-06-05 19:38:26 +00:00
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2009-12-01 08:47:26 +00:00
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2009-10-12 23:40:10 -07:00
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2010-03-26 16:18:03 +00:00
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2009-10-12 23:40:10 -07:00
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2016-05-19 17:09:05 -07:00
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2009-10-12 23:40:10 -07:00
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2016-01-08 08:37:20 -08:00
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2009-10-12 23:40:10 -07:00
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2016-03-14 09:56:35 -03:00
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2009-10-12 23:40:10 -07:00
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2016-03-14 09:56:35 -03:00
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2009-10-12 23:40:10 -07:00
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2016-03-14 09:56:35 -03:00
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2009-10-12 23:40:10 -07:00
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2016-03-14 09:56:35 -03:00
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2009-10-12 23:40:10 -07:00
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2016-03-14 09:56:35 -03:00
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2009-10-12 23:40:10 -07:00
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2016-03-14 09:56:35 -03:00
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2009-10-12 23:40:10 -07:00
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net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
To: linux-kernel@vger.kernel.org
Cc: x86@kernel.org, trinity@vger.kernel.org, Andy Lutomirski <luto@amacapital.net>, netdev@vger.kernel.org, "David S.
Miller" <davem@davemloft.net>
Subject: [PATCH 5/5] net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
MSG_CMSG_COMPAT is (AFAIK) not intended to be part of the API --
it's a hack that steals a bit to indicate to other networking code
that a compat entry was used. So don't allow it from a non-compat
syscall.
This prevents an oops when running this code:
int main()
{
int s;
struct sockaddr_in addr;
struct msghdr *hdr;
char *highpage = mmap((void*)(TASK_SIZE_MAX - 4096), 4096,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
if (highpage == MAP_FAILED)
err(1, "mmap");
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (s == -1)
err(1, "socket");
addr.sin_family = AF_INET;
addr.sin_port = htons(1);
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (connect(s, (struct sockaddr*)&addr, sizeof(addr)) != 0)
err(1, "connect");
void *evil = highpage + 4096 - COMPAT_MSGHDR_SIZE;
printf("Evil address is %p\n", evil);
if (syscall(__NR_sendmmsg, s, evil, 1, MSG_CMSG_COMPAT) < 0)
err(1, "sendmmsg");
return 0;
}
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-22 14:07:44 -07:00
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2009-10-12 23:40:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-05-02 20:21:35 +00:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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reintroduce accept4
Introduce a new accept4() system call. The addition of this system call
matches analogous changes in 2.6.27 (dup3(), evenfd2(), signalfd4(),
inotify_init1(), epoll_create1(), pipe2()) which added new system calls
that differed from analogous traditional system calls in adding a flags
argument that can be used to access additional functionality.
The accept4() system call is exactly the same as accept(), except that
it adds a flags bit-mask argument. Two flags are initially implemented.
(Most of the new system calls in 2.6.27 also had both of these flags.)
SOCK_CLOEXEC causes the close-on-exec (FD_CLOEXEC) flag to be enabled
for the new file descriptor returned by accept4(). This is a useful
security feature to avoid leaking information in a multithreaded
program where one thread is doing an accept() at the same time as
another thread is doing a fork() plus exec(). More details here:
http://udrepper.livejournal.com/20407.html "Secure File Descriptor Handling",
Ulrich Drepper).
The other flag is SOCK_NONBLOCK, which causes the O_NONBLOCK flag
to be enabled on the new open file description created by accept4().
(This flag is merely a convenience, saving the use of additional calls
fcntl(F_GETFL) and fcntl (F_SETFL) to achieve the same result.
Here's a test program. Works on x86-32. Should work on x86-64, but
I (mtk) don't have a system to hand to test with.
It tests accept4() with each of the four possible combinations of
SOCK_CLOEXEC and SOCK_NONBLOCK set/clear in 'flags', and verifies
that the appropriate flags are set on the file descriptor/open file
description returned by accept4().
I tested Ulrich's patch in this thread by applying against 2.6.28-rc2,
and it passes according to my test program.
/* test_accept4.c
Copyright (C) 2008, Linux Foundation, written by Michael Kerrisk
<mtk.manpages@gmail.com>
Licensed under the GNU GPLv2 or later.
*/
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#define PORT_NUM 33333
#define die(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)
/**********************************************************************/
/* The following is what we need until glibc gets a wrapper for
accept4() */
/* Flags for socket(), socketpair(), accept4() */
#ifndef SOCK_CLOEXEC
#define SOCK_CLOEXEC O_CLOEXEC
#endif
#ifndef SOCK_NONBLOCK
#define SOCK_NONBLOCK O_NONBLOCK
#endif
#ifdef __x86_64__
#define SYS_accept4 288
#elif __i386__
#define USE_SOCKETCALL 1
#define SYS_ACCEPT4 18
#else
#error "Sorry -- don't know the syscall # on this architecture"
#endif
static int
accept4(int fd, struct sockaddr *sockaddr, socklen_t *addrlen, int flags)
{
printf("Calling accept4(): flags = %x", flags);
if (flags != 0) {
printf(" (");
if (flags & SOCK_CLOEXEC)
printf("SOCK_CLOEXEC");
if ((flags & SOCK_CLOEXEC) && (flags & SOCK_NONBLOCK))
printf(" ");
if (flags & SOCK_NONBLOCK)
printf("SOCK_NONBLOCK");
printf(")");
}
printf("\n");
#if USE_SOCKETCALL
long args[6];
args[0] = fd;
args[1] = (long) sockaddr;
args[2] = (long) addrlen;
args[3] = flags;
return syscall(SYS_socketcall, SYS_ACCEPT4, args);
#else
return syscall(SYS_accept4, fd, sockaddr, addrlen, flags);
#endif
}
/**********************************************************************/
static int
do_test(int lfd, struct sockaddr_in *conn_addr,
int closeonexec_flag, int nonblock_flag)
{
int connfd, acceptfd;
int fdf, flf, fdf_pass, flf_pass;
struct sockaddr_in claddr;
socklen_t addrlen;
printf("=======================================\n");
connfd = socket(AF_INET, SOCK_STREAM, 0);
if (connfd == -1)
die("socket");
if (connect(connfd, (struct sockaddr *) conn_addr,
sizeof(struct sockaddr_in)) == -1)
die("connect");
addrlen = sizeof(struct sockaddr_in);
acceptfd = accept4(lfd, (struct sockaddr *) &claddr, &addrlen,
closeonexec_flag | nonblock_flag);
if (acceptfd == -1) {
perror("accept4()");
close(connfd);
return 0;
}
fdf = fcntl(acceptfd, F_GETFD);
if (fdf == -1)
die("fcntl:F_GETFD");
fdf_pass = ((fdf & FD_CLOEXEC) != 0) ==
((closeonexec_flag & SOCK_CLOEXEC) != 0);
printf("Close-on-exec flag is %sset (%s); ",
(fdf & FD_CLOEXEC) ? "" : "not ",
fdf_pass ? "OK" : "failed");
flf = fcntl(acceptfd, F_GETFL);
if (flf == -1)
die("fcntl:F_GETFD");
flf_pass = ((flf & O_NONBLOCK) != 0) ==
((nonblock_flag & SOCK_NONBLOCK) !=0);
printf("nonblock flag is %sset (%s)\n",
(flf & O_NONBLOCK) ? "" : "not ",
flf_pass ? "OK" : "failed");
close(acceptfd);
close(connfd);
printf("Test result: %s\n", (fdf_pass && flf_pass) ? "PASS" : "FAIL");
return fdf_pass && flf_pass;
}
static int
create_listening_socket(int port_num)
{
struct sockaddr_in svaddr;
int lfd;
int optval;
memset(&svaddr, 0, sizeof(struct sockaddr_in));
svaddr.sin_family = AF_INET;
svaddr.sin_addr.s_addr = htonl(INADDR_ANY);
svaddr.sin_port = htons(port_num);
lfd = socket(AF_INET, SOCK_STREAM, 0);
if (lfd == -1)
die("socket");
optval = 1;
if (setsockopt(lfd, SOL_SOCKET, SO_REUSEADDR, &optval,
sizeof(optval)) == -1)
die("setsockopt");
if (bind(lfd, (struct sockaddr *) &svaddr,
sizeof(struct sockaddr_in)) == -1)
die("bind");
if (listen(lfd, 5) == -1)
die("listen");
return lfd;
}
int
main(int argc, char *argv[])
{
struct sockaddr_in conn_addr;
int lfd;
int port_num;
int passed;
passed = 1;
port_num = (argc > 1) ? atoi(argv[1]) : PORT_NUM;
memset(&conn_addr, 0, sizeof(struct sockaddr_in));
conn_addr.sin_family = AF_INET;
conn_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
conn_addr.sin_port = htons(port_num);
lfd = create_listening_socket(port_num);
if (!do_test(lfd, &conn_addr, 0, 0))
passed = 0;
if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, 0))
passed = 0;
if (!do_test(lfd, &conn_addr, 0, SOCK_NONBLOCK))
passed = 0;
if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, SOCK_NONBLOCK))
passed = 0;
close(lfd);
exit(passed ? EXIT_SUCCESS : EXIT_FAILURE);
}
[mtk.manpages@gmail.com: rewrote changelog, updated test program]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Tested-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: <linux-api@vger.kernel.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-19 15:36:14 -08:00
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2006-09-01 00:19:31 -07:00
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separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
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2006-09-01 00:19:31 -07:00
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2011-05-02 20:21:35 +00:00
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2006-09-01 00:19:31 -07:00
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separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-04-06 14:03:05 -04:00
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2006-09-01 00:19:31 -07:00
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2009-10-12 23:40:10 -07:00
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reintroduce accept4
Introduce a new accept4() system call. The addition of this system call
matches analogous changes in 2.6.27 (dup3(), evenfd2(), signalfd4(),
inotify_init1(), epoll_create1(), pipe2()) which added new system calls
that differed from analogous traditional system calls in adding a flags
argument that can be used to access additional functionality.
The accept4() system call is exactly the same as accept(), except that
it adds a flags bit-mask argument. Two flags are initially implemented.
(Most of the new system calls in 2.6.27 also had both of these flags.)
SOCK_CLOEXEC causes the close-on-exec (FD_CLOEXEC) flag to be enabled
for the new file descriptor returned by accept4(). This is a useful
security feature to avoid leaking information in a multithreaded
program where one thread is doing an accept() at the same time as
another thread is doing a fork() plus exec(). More details here:
http://udrepper.livejournal.com/20407.html "Secure File Descriptor Handling",
Ulrich Drepper).
The other flag is SOCK_NONBLOCK, which causes the O_NONBLOCK flag
to be enabled on the new open file description created by accept4().
(This flag is merely a convenience, saving the use of additional calls
fcntl(F_GETFL) and fcntl (F_SETFL) to achieve the same result.
Here's a test program. Works on x86-32. Should work on x86-64, but
I (mtk) don't have a system to hand to test with.
It tests accept4() with each of the four possible combinations of
SOCK_CLOEXEC and SOCK_NONBLOCK set/clear in 'flags', and verifies
that the appropriate flags are set on the file descriptor/open file
description returned by accept4().
I tested Ulrich's patch in this thread by applying against 2.6.28-rc2,
and it passes according to my test program.
/* test_accept4.c
Copyright (C) 2008, Linux Foundation, written by Michael Kerrisk
<mtk.manpages@gmail.com>
Licensed under the GNU GPLv2 or later.
*/
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#define PORT_NUM 33333
#define die(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)
/**********************************************************************/
/* The following is what we need until glibc gets a wrapper for
accept4() */
/* Flags for socket(), socketpair(), accept4() */
#ifndef SOCK_CLOEXEC
#define SOCK_CLOEXEC O_CLOEXEC
#endif
#ifndef SOCK_NONBLOCK
#define SOCK_NONBLOCK O_NONBLOCK
#endif
#ifdef __x86_64__
#define SYS_accept4 288
#elif __i386__
#define USE_SOCKETCALL 1
#define SYS_ACCEPT4 18
#else
#error "Sorry -- don't know the syscall # on this architecture"
#endif
static int
accept4(int fd, struct sockaddr *sockaddr, socklen_t *addrlen, int flags)
{
printf("Calling accept4(): flags = %x", flags);
if (flags != 0) {
printf(" (");
if (flags & SOCK_CLOEXEC)
printf("SOCK_CLOEXEC");
if ((flags & SOCK_CLOEXEC) && (flags & SOCK_NONBLOCK))
printf(" ");
if (flags & SOCK_NONBLOCK)
printf("SOCK_NONBLOCK");
printf(")");
}
printf("\n");
#if USE_SOCKETCALL
long args[6];
args[0] = fd;
args[1] = (long) sockaddr;
args[2] = (long) addrlen;
args[3] = flags;
return syscall(SYS_socketcall, SYS_ACCEPT4, args);
#else
return syscall(SYS_accept4, fd, sockaddr, addrlen, flags);
#endif
}
/**********************************************************************/
static int
do_test(int lfd, struct sockaddr_in *conn_addr,
int closeonexec_flag, int nonblock_flag)
{
int connfd, acceptfd;
int fdf, flf, fdf_pass, flf_pass;
struct sockaddr_in claddr;
socklen_t addrlen;
printf("=======================================\n");
connfd = socket(AF_INET, SOCK_STREAM, 0);
if (connfd == -1)
die("socket");
if (connect(connfd, (struct sockaddr *) conn_addr,
sizeof(struct sockaddr_in)) == -1)
die("connect");
addrlen = sizeof(struct sockaddr_in);
acceptfd = accept4(lfd, (struct sockaddr *) &claddr, &addrlen,
closeonexec_flag | nonblock_flag);
if (acceptfd == -1) {
perror("accept4()");
close(connfd);
return 0;
}
fdf = fcntl(acceptfd, F_GETFD);
if (fdf == -1)
die("fcntl:F_GETFD");
fdf_pass = ((fdf & FD_CLOEXEC) != 0) ==
((closeonexec_flag & SOCK_CLOEXEC) != 0);
printf("Close-on-exec flag is %sset (%s); ",
(fdf & FD_CLOEXEC) ? "" : "not ",
fdf_pass ? "OK" : "failed");
flf = fcntl(acceptfd, F_GETFL);
if (flf == -1)
die("fcntl:F_GETFD");
flf_pass = ((flf & O_NONBLOCK) != 0) ==
((nonblock_flag & SOCK_NONBLOCK) !=0);
printf("nonblock flag is %sset (%s)\n",
(flf & O_NONBLOCK) ? "" : "not ",
flf_pass ? "OK" : "failed");
close(acceptfd);
close(connfd);
printf("Test result: %s\n", (fdf_pass && flf_pass) ? "PASS" : "FAIL");
return fdf_pass && flf_pass;
}
static int
create_listening_socket(int port_num)
{
struct sockaddr_in svaddr;
int lfd;
int optval;
memset(&svaddr, 0, sizeof(struct sockaddr_in));
svaddr.sin_family = AF_INET;
svaddr.sin_addr.s_addr = htonl(INADDR_ANY);
svaddr.sin_port = htons(port_num);
lfd = socket(AF_INET, SOCK_STREAM, 0);
if (lfd == -1)
die("socket");
optval = 1;
if (setsockopt(lfd, SOL_SOCKET, SO_REUSEADDR, &optval,
sizeof(optval)) == -1)
die("setsockopt");
if (bind(lfd, (struct sockaddr *) &svaddr,
sizeof(struct sockaddr_in)) == -1)
die("bind");
if (listen(lfd, 5) == -1)
die("listen");
return lfd;
}
int
main(int argc, char *argv[])
{
struct sockaddr_in conn_addr;
int lfd;
int port_num;
int passed;
passed = 1;
port_num = (argc > 1) ? atoi(argv[1]) : PORT_NUM;
memset(&conn_addr, 0, sizeof(struct sockaddr_in));
conn_addr.sin_family = AF_INET;
conn_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
conn_addr.sin_port = htons(port_num);
lfd = create_listening_socket(port_num);
if (!do_test(lfd, &conn_addr, 0, 0))
passed = 0;
if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, 0))
passed = 0;
if (!do_test(lfd, &conn_addr, 0, SOCK_NONBLOCK))
passed = 0;
if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, SOCK_NONBLOCK))
passed = 0;
close(lfd);
exit(passed ? EXIT_SUCCESS : EXIT_FAILURE);
}
[mtk.manpages@gmail.com: rewrote changelog, updated test program]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Tested-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: <linux-api@vger.kernel.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-19 15:36:14 -08:00
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flag parameters: paccept
This patch is by far the most complex in the series. It adds a new syscall
paccept. This syscall differs from accept in that it adds (at the userlevel)
two additional parameters:
- a signal mask
- a flags value
The flags parameter can be used to set flag like SOCK_CLOEXEC. This is
imlpemented here as well. Some people argued that this is a property which
should be inherited from the file desriptor for the server but this is against
POSIX. Additionally, we really want the signal mask parameter as well
(similar to pselect, ppoll, etc). So an interface change in inevitable.
The flag value is the same as for socket and socketpair. I think diverging
here will only create confusion. Similar to the filesystem interfaces where
the use of the O_* constants differs, it is acceptable here.
The signal mask is handled as for pselect etc. The mask is temporarily
installed for the thread and removed before the call returns. I modeled the
code after pselect. If there is a problem it's likely also in pselect.
For architectures which use socketcall I maintained this interface instead of
adding a system call. The symmetry shouldn't be broken.
The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#ifndef __NR_paccept
# ifdef __x86_64__
# define __NR_paccept 288
# elif defined __i386__
# define SYS_PACCEPT 18
# define USE_SOCKETCALL 1
# else
# error "need __NR_paccept"
# endif
#endif
#ifdef USE_SOCKETCALL
# define paccept(fd, addr, addrlen, mask, flags) \
({ long args[6] = { \
(long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \
syscall (__NR_socketcall, SYS_PACCEPT, args); })
#else
# define paccept(fd, addr, addrlen, mask, flags) \
syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)
#endif
#define PORT 57392
#define SOCK_CLOEXEC O_CLOEXEC
static pthread_barrier_t b;
static void *
tf (void *arg)
{
pthread_barrier_wait (&b);
int s = socket (AF_INET, SOCK_STREAM, 0);
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
s = socket (AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons (PORT);
connect (s, (const struct sockaddr *) &sin, sizeof (sin));
close (s);
pthread_barrier_wait (&b);
pthread_barrier_wait (&b);
sleep (2);
pthread_kill ((pthread_t) arg, SIGUSR1);
return NULL;
}
static void
handler (int s)
{
}
int
main (void)
{
pthread_barrier_init (&b, NULL, 2);
struct sockaddr_in sin;
pthread_t th;
if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0)
{
puts ("pthread_create failed");
return 1;
}
int s = socket (AF_INET, SOCK_STREAM, 0);
int reuse = 1;
setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof (reuse));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
sin.sin_port = htons (PORT);
bind (s, (struct sockaddr *) &sin, sizeof (sin));
listen (s, SOMAXCONN);
pthread_barrier_wait (&b);
int s2 = paccept (s, NULL, 0, NULL, 0);
if (s2 < 0)
{
puts ("paccept(0) failed");
return 1;
}
int coe = fcntl (s2, F_GETFD);
if (coe & FD_CLOEXEC)
{
puts ("paccept(0) set close-on-exec-flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
s2 = paccept (s, NULL, 0, NULL, SOCK_CLOEXEC);
if (s2 < 0)
{
puts ("paccept(SOCK_CLOEXEC) failed");
return 1;
}
coe = fcntl (s2, F_GETFD);
if ((coe & FD_CLOEXEC) == 0)
{
puts ("paccept(SOCK_CLOEXEC) does not set close-on-exec flag");
return 1;
}
close (s2);
pthread_barrier_wait (&b);
struct sigaction sa;
sa.sa_handler = handler;
sa.sa_flags = 0;
sigemptyset (&sa.sa_mask);
sigaction (SIGUSR1, &sa, NULL);
sigset_t ss;
pthread_sigmask (SIG_SETMASK, NULL, &ss);
sigaddset (&ss, SIGUSR1);
pthread_sigmask (SIG_SETMASK, &ss, NULL);
sigdelset (&ss, SIGUSR1);
alarm (4);
pthread_barrier_wait (&b);
errno = 0 ;
s2 = paccept (s, NULL, 0, &ss, 0);
if (s2 != -1 || errno != EINTR)
{
puts ("paccept did not fail with EINTR");
return 1;
}
close (s);
puts ("OK");
return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[akpm@linux-foundation.org: make it compile]
[akpm@linux-foundation.org: add sys_ni stub]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Roland McGrath <roland@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:29:20 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2005-04-16 15:20:36 -07:00
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sock_diag: request _diag module only when the family or proto has been registered
Now when using 'ss' in iproute, kernel would try to load all _diag
modules, which also causes corresponding family and proto modules
to be loaded as well due to module dependencies.
Like after running 'ss', sctp, dccp, af_packet (if it works as a module)
would be loaded.
For example:
$ lsmod|grep sctp
$ ss
$ lsmod|grep sctp
sctp_diag 16384 0
sctp 323584 5 sctp_diag
inet_diag 24576 4 raw_diag,tcp_diag,sctp_diag,udp_diag
libcrc32c 16384 3 nf_conntrack,nf_nat,sctp
As these family and proto modules are loaded unintentionally, it
could cause some problems, like:
- Some debug tools use 'ss' to collect the socket info, which loads all
those diag and family and protocol modules. It's noisy for identifying
issues.
- Users usually expect to drop sctp init packet silently when they
have no sense of sctp protocol instead of sending abort back.
- It wastes resources (especially with multiple netns), and SCTP module
can't be unloaded once it's loaded.
...
In short, it's really inappropriate to have these family and proto
modules loaded unexpectedly when just doing debugging with inet_diag.
This patch is to introduce sock_load_diag_module() where it loads
the _diag module only when it's corresponding family or proto has
been already registered.
Note that we can't just load _diag module without the family or
proto loaded, as some symbols used in _diag module are from the
family or proto module.
v1->v2:
- move inet proto check to inet_diag to avoid a compiling err.
v2->v3:
- define sock_load_diag_module in sock.c and export one symbol
only.
- improve the changelog.
Reported-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Phil Sutter <phil@nwl.cc>
Acked-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-10 18:57:50 +08:00
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2005-12-22 12:43:42 -08:00
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2005-04-16 15:20:36 -07:00
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fs: scale mntget/mntput
The problem that this patch aims to fix is vfsmount refcounting scalability.
We need to take a reference on the vfsmount for every successful path lookup,
which often go to the same mount point.
The fundamental difficulty is that a "simple" reference count can never be made
scalable, because any time a reference is dropped, we must check whether that
was the last reference. To do that requires communication with all other CPUs
that may have taken a reference count.
We can make refcounts more scalable in a couple of ways, involving keeping
distributed counters, and checking for the global-zero condition less
frequently.
- check the global sum once every interval (this will delay zero detection
for some interval, so it's probably a showstopper for vfsmounts).
- keep a local count and only taking the global sum when local reaches 0 (this
is difficult for vfsmounts, because we can't hold preempt off for the life of
a reference, so a counter would need to be per-thread or tied strongly to a
particular CPU which requires more locking).
- keep a local difference of increments and decrements, which allows us to sum
the total difference and hence find the refcount when summing all CPUs. Then,
keep a single integer "long" refcount for slow and long lasting references,
and only take the global sum of local counters when the long refcount is 0.
This last scheme is what I implemented here. Attached mounts and process root
and working directory references are "long" references, and everything else is
a short reference.
This allows scalable vfsmount references during path walking over mounted
subtrees and unattached (lazy umounted) mounts with processes still running
in them.
This results in one fewer atomic op in the fastpath: mntget is now just a
per-CPU inc, rather than an atomic inc; and mntput just requires a spinlock
and non-atomic decrement in the common case. However code is otherwise bigger
and heavier, so single threaded performance is basically a wash.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:11 +11:00
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2012-04-19 13:20:32 +00:00
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fs: scale mntget/mntput
The problem that this patch aims to fix is vfsmount refcounting scalability.
We need to take a reference on the vfsmount for every successful path lookup,
which often go to the same mount point.
The fundamental difficulty is that a "simple" reference count can never be made
scalable, because any time a reference is dropped, we must check whether that
was the last reference. To do that requires communication with all other CPUs
that may have taken a reference count.
We can make refcounts more scalable in a couple of ways, involving keeping
distributed counters, and checking for the global-zero condition less
frequently.
- check the global sum once every interval (this will delay zero detection
for some interval, so it's probably a showstopper for vfsmounts).
- keep a local count and only taking the global sum when local reaches 0 (this
is difficult for vfsmounts, because we can't hold preempt off for the life of
a reference, so a counter would need to be per-thread or tied strongly to a
particular CPU which requires more locking).
- keep a local difference of increments and decrements, which allows us to sum
the total difference and hence find the refcount when summing all CPUs. Then,
keep a single integer "long" refcount for slow and long lasting references,
and only take the global sum of local counters when the long refcount is 0.
This last scheme is what I implemented here. Attached mounts and process root
and working directory references are "long" references, and everything else is
a short reference.
This allows scalable vfsmount references during path walking over mounted
subtrees and unattached (lazy umounted) mounts with processes still running
in them.
This results in one fewer atomic op in the fastpath: mntget is now just a
per-CPU inc, rather than an atomic inc; and mntput just requires a spinlock
and non-atomic decrement in the common case. However code is otherwise bigger
and heavier, so single threaded performance is basically a wash.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:11 +11:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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2006-09-01 00:19:31 -07:00
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2005-04-16 15:20:36 -07:00
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fs: scale mntget/mntput
The problem that this patch aims to fix is vfsmount refcounting scalability.
We need to take a reference on the vfsmount for every successful path lookup,
which often go to the same mount point.
The fundamental difficulty is that a "simple" reference count can never be made
scalable, because any time a reference is dropped, we must check whether that
was the last reference. To do that requires communication with all other CPUs
that may have taken a reference count.
We can make refcounts more scalable in a couple of ways, involving keeping
distributed counters, and checking for the global-zero condition less
frequently.
- check the global sum once every interval (this will delay zero detection
for some interval, so it's probably a showstopper for vfsmounts).
- keep a local count and only taking the global sum when local reaches 0 (this
is difficult for vfsmounts, because we can't hold preempt off for the life of
a reference, so a counter would need to be per-thread or tied strongly to a
particular CPU which requires more locking).
- keep a local difference of increments and decrements, which allows us to sum
the total difference and hence find the refcount when summing all CPUs. Then,
keep a single integer "long" refcount for slow and long lasting references,
and only take the global sum of local counters when the long refcount is 0.
This last scheme is what I implemented here. Attached mounts and process root
and working directory references are "long" references, and everything else is
a short reference.
This allows scalable vfsmount references during path walking over mounted
subtrees and unattached (lazy umounted) mounts with processes still running
in them.
This results in one fewer atomic op in the fastpath: mntget is now just a
per-CPU inc, rather than an atomic inc; and mntput just requires a spinlock
and non-atomic decrement in the common case. However code is otherwise bigger
and heavier, so single threaded performance is basically a wash.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:11 +11:00
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2005-04-16 15:20:36 -07:00
|
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|
fs: scale mntget/mntput
The problem that this patch aims to fix is vfsmount refcounting scalability.
We need to take a reference on the vfsmount for every successful path lookup,
which often go to the same mount point.
The fundamental difficulty is that a "simple" reference count can never be made
scalable, because any time a reference is dropped, we must check whether that
was the last reference. To do that requires communication with all other CPUs
that may have taken a reference count.
We can make refcounts more scalable in a couple of ways, involving keeping
distributed counters, and checking for the global-zero condition less
frequently.
- check the global sum once every interval (this will delay zero detection
for some interval, so it's probably a showstopper for vfsmounts).
- keep a local count and only taking the global sum when local reaches 0 (this
is difficult for vfsmounts, because we can't hold preempt off for the life of
a reference, so a counter would need to be per-thread or tied strongly to a
particular CPU which requires more locking).
- keep a local difference of increments and decrements, which allows us to sum
the total difference and hence find the refcount when summing all CPUs. Then,
keep a single integer "long" refcount for slow and long lasting references,
and only take the global sum of local counters when the long refcount is 0.
This last scheme is what I implemented here. Attached mounts and process root
and working directory references are "long" references, and everything else is
a short reference.
This allows scalable vfsmount references during path walking over mounted
subtrees and unattached (lazy umounted) mounts with processes still running
in them.
This results in one fewer atomic op in the fastpath: mntget is now just a
per-CPU inc, rather than an atomic inc; and mntput just requires a spinlock
and non-atomic decrement in the common case. However code is otherwise bigger
and heavier, so single threaded performance is basically a wash.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:11 +11:00
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2005-12-22 12:43:42 -08:00
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2005-04-16 15:20:36 -07:00
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2013-05-22 22:42:36 +00:00
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2005-04-16 15:20:36 -07:00
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2005-12-22 12:58:55 -08:00
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2014-04-01 16:20:23 +02:00
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2010-07-17 08:49:36 +00:00
|
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fs: scale mntget/mntput
The problem that this patch aims to fix is vfsmount refcounting scalability.
We need to take a reference on the vfsmount for every successful path lookup,
which often go to the same mount point.
The fundamental difficulty is that a "simple" reference count can never be made
scalable, because any time a reference is dropped, we must check whether that
was the last reference. To do that requires communication with all other CPUs
that may have taken a reference count.
We can make refcounts more scalable in a couple of ways, involving keeping
distributed counters, and checking for the global-zero condition less
frequently.
- check the global sum once every interval (this will delay zero detection
for some interval, so it's probably a showstopper for vfsmounts).
- keep a local count and only taking the global sum when local reaches 0 (this
is difficult for vfsmounts, because we can't hold preempt off for the life of
a reference, so a counter would need to be per-thread or tied strongly to a
particular CPU which requires more locking).
- keep a local difference of increments and decrements, which allows us to sum
the total difference and hence find the refcount when summing all CPUs. Then,
keep a single integer "long" refcount for slow and long lasting references,
and only take the global sum of local counters when the long refcount is 0.
This last scheme is what I implemented here. Attached mounts and process root
and working directory references are "long" references, and everything else is
a short reference.
This allows scalable vfsmount references during path walking over mounted
subtrees and unattached (lazy umounted) mounts with processes still running
in them.
This results in one fewer atomic op in the fastpath: mntget is now just a
per-CPU inc, rather than an atomic inc; and mntput just requires a spinlock
and non-atomic decrement in the common case. However code is otherwise bigger
and heavier, so single threaded performance is basically a wash.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:11 +11:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2009-11-06 23:10:54 -08:00
|
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2016-10-24 18:29:13 -07:00
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2009-11-06 23:10:54 -08:00
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2009-11-06 08:09:09 +00:00
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2009-11-06 23:10:54 -08:00
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2017-09-30 19:32:17 -04:00
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2017-10-01 21:12:09 -04:00
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2009-11-06 08:09:09 +00:00
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2009-11-06 23:10:54 -08:00
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2009-11-06 23:00:29 -08:00
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2012-04-15 05:58:06 +00:00
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2006-09-01 00:19:31 -07:00
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2006-03-21 23:58:08 -08:00
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2008-06-03 09:14:03 -07:00
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2006-03-21 23:58:08 -08:00
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2008-06-03 09:14:03 -07:00
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2009-11-06 23:10:54 -08:00
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2006-03-21 23:58:08 -08:00
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2006-08-07 20:57:31 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups
cleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)
diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;
if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);
return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;
@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;
@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);
- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {
int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);
int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;
err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}
static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};
#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);
return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;
old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);
if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;
- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}
struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);
out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
2010-06-03 20:03:40 -07:00
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2006-08-07 20:57:31 -07:00
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2007-11-12 18:10:39 -08:00
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2017-04-12 18:31:04 -07:00
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