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Merge tag 'vfs-6.19-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Fix the the buggy conversion of fuse_reverse_inval_entry() introduced
during the creation rework
- Disallow nfs delegation requests for directories by setting
simple_nosetlease()
- Require an opt-in for getting readdir flag bits outside of S_DT_MASK
set in d_type
- Fix scheduling delayed writeback work by only scheduling when the
dirty time expiry interval is non-zero and cancel the delayed work if
the interval is set to zero
- Use rounded_jiffies_interval for dirty time work
- Check the return value of sb_set_blocksize() for romfs
- Wait for batched folios to be stable in __iomap_get_folio()
- Use private naming for fuse hash size
- Fix the stale dentry cleanup to prevent a race that causes a UAF
* tag 'vfs-6.19-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
vfs: document d_dispose_if_unused()
fuse: shrink once after all buckets have been scanned
fuse: clean up fuse_dentry_tree_work()
fuse: add need_resched() before unlocking bucket
fuse: make sure dentry is evicted if stale
fuse: fix race when disposing stale dentries
fuse: use private naming for fuse hash size
writeback: use round_jiffies_relative for dirtytime_work
iomap: wait for batched folios to be stable in __iomap_get_folio
romfs: check sb_set_blocksize() return value
docs: clarify that dirtytime_expire_seconds=0 disables writeback
writeback: fix 100% CPU usage when dirtytime_expire_interval is 0
readdir: require opt-in for d_type flags
vboxsf: don't allow delegations to be set on directories
ceph: don't allow delegations to be set on directories
gfs2: don't allow delegations to be set on directories
9p: don't allow delegations to be set on directories
smb/client: properly disallow delegations on directories
nfs: properly disallow delegation requests on directories
fuse: fix conversion of fuse_reverse_inval_entry() to start_removing()
This allows testing with different devices (iwrap vs. non-iwarp) without
'rmmod ksmbd && modprobe ksmbd', but instead
'ksmbd.control -s && ksmbd.mountd' is enough.
In the long run we want to listen on iwarp and non-iwarp at the same time,
but requires more changes, most likely also in the rdma layer.
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This was found by sparse...
Fixes: 1ead2213dd ("smb/server: use end_removing_noperm for for target of smb2_create_link()")
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: NeilBrown <neil@brown.name>
Cc: Christian Brauner <brauner@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
The dma_unmap_sg() functions should be called with the same nents as the
dma_map_sg(), not the value the map function returned.
Fixes: 0626e6641f ("cifsd: add server handler for central processing and tranport layers")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
The check for S_ISREG() in cifs_setlease() is incorrect since that
operation doesn't get called for directories. The correct way to prevent
delegations on directories is to set the ->setlease() method in directory
file_operations to simple_nosetlease().
Fixes: e6d28ebc17 ("filelock: push the S_ISREG check down to ->setlease handlers")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://patch.msgid.link/20260107-setlease-6-19-v1-2-85f034abcc57@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
struct copychunk_ioctl_req::ChunkCount is annotated with
__counted_by_le() as the number of elements in Chunks[].
smb2_copychunk_range reuses ChunkCount to store the number of chunks
sent in the current iteration. If a later iteration populates more
chunks than a previous one, the stale smaller value trips UBSAN.
Set ChunkCount to chunk_count (allocated capacity) before populating
Chunks[].
Fixes: cc26f593dc ("smb: move copychunk definitions to common/smb2pdu.h")
Link: https://lore.kernel.org/linux-cifs/CAH2r5ms9AWLy8WZ04Cpq5XOeVK64tcrUQ6__iMW+yk1VPzo1BA@mail.gmail.com
Tested-by: Youling Tang <tangyouling@kylinos.cn>
Acked-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
In debugging a recent problem with an xfstest, noticed that we weren't
tracing cases where the ioctl was not supported. Add dynamic tracepoint:
"trace-cmd record -e smb3_unsupported_ioctl"
and then after running an app which calls unsupported ioctl,
"trace-cmd show"would display e.g.
xfs_io-7289 [012] ..... 1205.137765: smb3_unsupported_ioctl: xid=19 fid=0x4535bb84 ioctl cmd=0x801c581f
Acked-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
When ksmbd_vfs_getattr() fails, the reference count of ksmbd_file
must be released.
Suggested-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: ZhangGuoDong <zhangguodong@kylinos.cn>
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
When the command is a replay operation and -ENOEXEC is returned,
the refcount of ksmbd_file must be released.
Signed-off-by: ZhangGuoDong <zhangguodong@kylinos.cn>
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
When ksmbd_iov_pin_rsp() fails, we should call ksmbd_session_rpc_close().
Signed-off-by: ZhangGuoDong <zhangguodong@kylinos.cn>
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
In get_file_all_info(), if vfs_getattr() fails, the function returns
immediately without freeing the allocated filename, leading to a memory
leak.
Fix this by freeing the filename before returning in this error case.
Fixes: 5614c8c487 ("ksmbd: replace generic_fillattr with vfs_getattr")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
In smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails, the
function returns immediately without freeing and erasing the newly
allocated new_password and new_password2. This causes both a memory leak
and a potential information leak.
Fix this by calling kfree_sensitive() on both password buffers before
returning in this error case.
Fixes: 0f0e357902 ("cifs: during remount, make sure passwords are in sync")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
The minimum SMB2 PDU size should be updated to the size of
`struct smb2_pdu` (that is, the size of `struct smb2_hdr` + 2).
Suggested-by: David Howells <dhowells@redhat.com>
Suggested-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Since the RFC1002 header has been removed from `struct smb_hdr`,
the minimum SMB1 PDU size should be updated as well.
Fixes: 83bfbd0bb9 ("cifs: Remove the RFC1002 header from smb_hdr")
Suggested-by: David Howells <dhowells@redhat.com>
Suggested-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
With the removal of the RFC1002 length field from the SMB header,
smb2_get_msg is now used to get the smb1 request from the request buffer.
Since this function is no longer exclusive to smb2 and now supports smb1
as well, This patch rename it to smb_get_msg to better reflect its usage.
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
The commit that removed the RFC1002 header from struct smb_hdr didn't also
fix the places in ksmbd that use it in order to provide graceful rejection
of SMB1 protocol requests.
Fixes: 83bfbd0bb9 ("cifs: Remove the RFC1002 header from smb_hdr")
Reported-by: Namjae Jeon <linkinjeon@kernel.org>
Link: https://lore.kernel.org/r/CAKYAXd9Ju4MFkkH5Jxfi1mO0AWEr=R35M3vQ_Xa7Yw34JoNZ0A@mail.gmail.com/
Cc: ChenXiaoSong <chenxiaosong.chenxiaosong@linux.dev>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Merge tag 'v6.19-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- important fix for reconnect problem
- minor cleanup
* tag 'v6.19-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: update internal module version number
smb: move some SMB1 definitions into common/smb1pdu.h
smb: align durable reconnect v2 context to 8 byte boundary
These definitions are only used by SMB1, so move them into the new
common/smb1pdu.h.
KSMBD only implements SMB_COM_NEGOTIATE, see MS-SMB2 3.3.5.2.
Co-developed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: ZhangGuoDong <zhangguodong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
Add a 4-byte Pad to create_durable_handle_reconnect_v2 so the DH2C
create context is 8 byte aligned.
This avoids malformed CREATE contexts on reconnect.
Recent change removed this Padding, adding it back.
Fixes: 81a45de432 ("smb: move create_durable_handle_reconnect_v2 to common/smb2pdu.h")
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
The smb2_set_ea function, which handles Extended Attributes (EA),
was performing buffer validation checks that incorrectly omitted the size
of the null terminating character (+1 byte) for EA Name.
This patch fixes the issue by explicitly adding '+ 1' to EaNameLength where
the null terminator is expected to be present in the buffer, ensuring
the validation accurately reflects the total required buffer size.
Cc: stable@vger.kernel.org
Reported-by: Roger <roger.andersen@protonmail.com>
Reported-by: Stanislas Polu <spolu@dust.tt>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
When a session is found but its state is not SMB2_SESSION_VALID, It
indicates that no valid session was found, but it is missing to decrement
the reference count acquired by the session lookup, which results in
a reference count leak. This patch fixes the issue by explicitly calling
ksmbd_user_session_put to release the reference to the session.
Cc: stable@vger.kernel.org
Reported-by: Alexandre <roger.andersen@protonmail.com>
Reported-by: Stanislas Polu <spolu@dust.tt>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
A zero value of pdacl->num_aces is already handled at the start of
smb_check_perm_dacl() so the second check is useless.
Drop the unreachable code block, no functional impact intended.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Alexey Velichayshiy <a.velichayshiy@ispras.ru>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Replace comma between expressions with semicolons.
Using a ',' in place of a ';' can have unintended side effects.
Although that is not the case here, it is seems best to use ';'
unless ',' is intended.
Found by inspection.
No functional change intended.
Compile tested only.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
The previous change to relax WARN_ON_ONCE(SMBDIRECT_SOCKET_*) checks in
recv_done() and smb_direct_cm_handler() seems to work around the
problem that the order of initial recv completion and
RDMA_CM_EVENT_ESTABLISHED is random, but it's still
a bit ugly.
This implements a better solution deferring the recv completion
processing to smb_direct_negotiate_recv_work(), which is queued
only if both events arrived.
In order to avoid more basic changes to the main recv_done
callback, I introduced a smb_direct_negotiate_recv_done,
which is only used for the first pdu, this will allow
further cleanup and simplifications in recv_done
as a future patch.
smb_direct_negotiate_recv_work() is also very basic
with only basic error checking and the transition
from SMBDIRECT_SOCKET_NEGOTIATE_NEEDED to
SMBDIRECT_SOCKET_NEGOTIATE_RUNNING, which allows
smb_direct_prepare() to continue as before.
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
smbdirect_recv_io structures are pre-allocated so we can set the
callback function just once.
This will make it easy to move smb_direct_post_recv to common code
soon.
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This will first be used by the server in order to defer
the processing of the initial recv of the negotiation
request.
But in future it will also be used by the client in order
to implement an async connect.
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Merge tag 'v6.19-rc-smb3-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- minor cleanup
- minor update to comment to avoid confusion about fs type
* tag 'v6.19-rc-smb3-server-fixes' of git://git.samba.org/ksmbd:
smb/server: add comment to FileSystemName of FileFsAttributeInformation
smb/server: remove unused nterr.h
smb/server: rename include guard in smb_common.h
These definitions are already in common/smb2pdu.h, so remove the duplicated
ones from the client.
Co-developed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: ZhangGuoDong <zhangguodong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
These definitions are specified in MS-FSCC 2.6, so move them into fscc.h.
Modify the following places:
- FILE_ATTRIBUTE__MASK -> FILE_ATTRIBUTE_MASK
- Update FILE_ATTRIBUTE_MASK value
- cpu_to_le32(constant) -> cpu_to_le32(MACRO DEFINITION)
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
Add the missing field to the structure (see MS-FSCC 2.3.9.2), and correct
the section number in the documentation reference.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
This struct definition is specified in MS-FSCC, and KSMBD will also use it,
so move it into common header file.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
Some of these definitions are already in common/smb2pdu.h. Remove the
duplicate client side definitions, and add all SMB2 Notify Action Flags to
common header file.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
Some of these definitions are already in common/smb2pdu.h, remove the
duplicate client side definitions, and move FILE_NOTIFY_CHANGE_NAME to
common header file.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
Use the following shell commands:
# Add "("
sed -i '/|/s/ 0x/ (0x/' fs/smb/client/nterr.h
# Add ")" if line does not end with a comment
sed -i '/|/ { /.*\*\/$/! s/$/)/ }' fs/smb/client/nterr.h
# Add ")" if line end with a comment
sed -i '/|/ s/[[:space:]]*\/\*/)&/' fs/smb/client/nterr.h
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
To make it easier to locate the documentation during development.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
This was reported by the KUnit tests in the later patches.
See MS-ERREF 2.3.1 STATUS_UNABLE_TO_FREE_VM. Keep it consistent with the
value in the documentation.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This was reported by the KUnit tests in the later patches.
See MS-ERREF 2.3.1 STATUS_DEVICE_DOOR_OPEN. Keep it consistent with the
value in the documentation.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This was reported by the KUnit tests in the later patches.
See MS-ERREF 2.3.1 STATUS_NO_DATA_DETECTED. Keep it consistent with the
value in the documentation.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Explained why FileSystemName is always set to "NTFS".
Link: 84392651b0
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
KSMBD does not use these NT error code definitions. Instead, it uses the
SMB2 status code definitions defined in common/smb2status.h.
By the way, server/nterr.h contains the following additional definitions
compared to client/nterr.h:
- NT_STATUS_PENDING
- NT_STATUS_INVALID_LOCK_RANGE
- NT_STATUS_NETWORK_SESSION_EXPIRED
- NT_STATUS_NO_PREAUTH_INTEGRITY_HASH_OVERLAP
We can add them to client/nterr.h in the next patch.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Make the include guard more descriptive to avoid conflicts with include
guards that may be used in the future.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
The smb2maperror KUnit tests reported the following errors:
KTAP version 1
1..1
KTAP version 1
# Subtest: smb2_maperror
# module: cifs
1..2
ok 1 maperror_test_check_sort
# maperror_test_check_search: EXPECTATION FAILED at fs/smb/client/smb2maperror_test.c:40
Expected expect->status_string == result->status_string, but
expect->status_string == "STATUS_ABANDONED_WAIT_0"
result->status_string == "STATUS_ABANDONED"
# maperror_test_check_search: EXPECTATION FAILED at fs/smb/client/smb2maperror_test.c:40
Expected expect->status_string == result->status_string, but
expect->status_string == "STATUS_FWP_TOO_MANY_CALLOUTS"
result->status_string == "STATUS_FWP_TOO_MANY_BOOTTIME_FILTERS"
not ok 2 maperror_test_check_search
# smb2_maperror: pass:1 fail:1 skip:0 total:2
# Totals: pass:1 fail:1 skip:0 total:2
not ok 1 smb2_maperror
These status codes have duplicate values, so update the status strings to
make the log messages more explicit.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
Remove a bunch of dead function prototypes.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-cifs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
