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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-27 08:55:05 +02:00
ecryptfs: main: Demote a bunch of non-conformant kernel-doc headers Fixes the following W=1 kernel build warning(s): fs/ecryptfs/main.c:28: warning: Incorrect use of kernel-doc format: * Module parameter that defines the ecryptfs_verbosity level. fs/ecryptfs/main.c:30: warning: cannot understand function prototype: 'int ecryptfs_verbosity = 0; ' fs/ecryptfs/main.c:40: warning: cannot understand function prototype: 'unsigned int ecryptfs_message_buf_len = ECRYPTFS_DEFAULT_MSG_CTX_ELEMS; ' fs/ecryptfs/main.c:52: warning: cannot understand function prototype: 'signed long ecryptfs_message_wait_timeout = ECRYPTFS_MAX_MSG_CTX_TTL / HZ; ' fs/ecryptfs/main.c:65: warning: cannot understand function prototype: 'unsigned int ecryptfs_number_of_users = ECRYPTFS_DEFAULT_NUM_USERS; ' fs/ecryptfs/main.c:106: warning: Function parameter or member 'dentry' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Function parameter or member 'lower_file' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Excess function parameter 'ecryptfs_dentry' description in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:244: warning: Function parameter or member 'sbi' not described in 'ecryptfs_parse_options' fs/ecryptfs/main.c:244: warning: Excess function parameter 'sb' description in 'ecryptfs_parse_options' fs/ecryptfs/main.c:478: warning: Function parameter or member 'fs_type' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: Function parameter or member 'flags' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: expecting prototype for ecryptfs_get_sb(). Prototype was for ecryptfs_mount() instead fs/ecryptfs/main.c:645: warning: Function parameter or member 'vptr' not described in 'inode_info_init_once' Cc: Tyler Hicks <code@tyhicks.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: James Morris <jamorris@linux.microsoft.com> Cc: "Michael A. Halcrow" <mahalcro@us.ibm.com> Cc: "Michael C. Thompson" <mcthomps@us.ibm.com> Cc: ecryptfs@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> [tyhicks: Correct the function documentation for ecryptfs_mount()] Signed-off-by: Tyler Hicks <code@tyhicks.com>
2021-03-30 17:44:53 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
[PATCH] eCryptfs: Generalize metadata read/write Generalize the metadata reading and writing mechanisms, with two targets for now: metadata in file header and metadata in the user.ecryptfs xattr of the lower file. [akpm@osdl.org: printk warning fix] [bunk@stusta.de: make some needlessly global code static] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:46 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: Replace deactivated email address Replace a recently deactived email address with one that I'll be able to personally control and keep alive. Signed-off-by: Tyler Hicks <code@tyhicks.com>
2020-02-13 21:25:54 +00:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Use MD5 library instead of crypto_shash eCryptfs uses MD5 for a couple unusual purposes: to "mix" the key into the IVs for file contents encryption (similar to ESSIV), and to prepend some key-dependent bytes to the plaintext when encrypting filenames (which is useless since eCryptfs encrypts the filenames with ECB). Currently, eCryptfs computes these MD5 hashes using the crypto_shash API. Update it to instead use the MD5 library API. This is simpler and faster: the library doesn't require memory allocations, can't fail, and provides direct access to MD5 without overhead such as indirect calls. To preserve the existing behavior of eCryptfs support being disabled when the kernel is booted with "fips=1", make ecryptfs_get_tree() check fips_enabled itself. Previously it relied on crypto_alloc_shash("md5") failing. I don't know for sure that this is actually needed; e.g., it could be argued that eCryptfs's use of MD5 isn't for a security purpose as far as FIPS is concerned. But this preserves the existing behavior. Tested by verifying that an existing eCryptfs can still be mounted with a kernel that has this commit, with all the files matching. Also tested creating a filesystem with this commit and mounting+reading it without. Signed-off-by: Eric Biggers <ebiggers@kernel.org> Link: https://patch.msgid.link/20251011200010.193140-1-ebiggers@kernel.org Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-10-11 13:00:10 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] eCryptfs: Use fsstack's generic copy inode attr functions Replace eCryptfs specific code & calls with the more generic fsstack equivalents and remove the eCryptfs specific functions. Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 02:36:31 -08:00
fs/ecryptfs: replace snprintf with sysfs_emit in show function Use sysfs_emit() instead of snprintf() in version_show() function to follow the preferred kernel API. Signed-off-by: Ankit Chauhan <ankitchauhan2065@gmail.com> Link: https://lore.kernel.org/20250619031536.19352-1-ankitchauhan2065@gmail.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-19 08:45:36 +05:30
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
ecryptfs: Replace strcpy with strscpy in ecryptfs_validate_options strcpy() has been deprecated [1] because it performs no bounds checking on the destination buffer, which can lead to buffer overflows. Replace it with the safer strscpy(). Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1] Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Signed-off-by: Tyler Hicks <code@tyhicks.com>
2025-12-13 12:04:54 +01:00
ecryptfs: missing initialization of the superblock 'magic' field This patch initializes the 'magic' field of ecryptfs filesystems to ECRYPTFS_SUPER_MAGIC. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> [tyhicks: merge with 66cb76666d69] Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-11-03 11:11:22 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: main: Demote a bunch of non-conformant kernel-doc headers Fixes the following W=1 kernel build warning(s): fs/ecryptfs/main.c:28: warning: Incorrect use of kernel-doc format: * Module parameter that defines the ecryptfs_verbosity level. fs/ecryptfs/main.c:30: warning: cannot understand function prototype: 'int ecryptfs_verbosity = 0; ' fs/ecryptfs/main.c:40: warning: cannot understand function prototype: 'unsigned int ecryptfs_message_buf_len = ECRYPTFS_DEFAULT_MSG_CTX_ELEMS; ' fs/ecryptfs/main.c:52: warning: cannot understand function prototype: 'signed long ecryptfs_message_wait_timeout = ECRYPTFS_MAX_MSG_CTX_TTL / HZ; ' fs/ecryptfs/main.c:65: warning: cannot understand function prototype: 'unsigned int ecryptfs_number_of_users = ECRYPTFS_DEFAULT_NUM_USERS; ' fs/ecryptfs/main.c:106: warning: Function parameter or member 'dentry' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Function parameter or member 'lower_file' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Excess function parameter 'ecryptfs_dentry' description in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:244: warning: Function parameter or member 'sbi' not described in 'ecryptfs_parse_options' fs/ecryptfs/main.c:244: warning: Excess function parameter 'sb' description in 'ecryptfs_parse_options' fs/ecryptfs/main.c:478: warning: Function parameter or member 'fs_type' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: Function parameter or member 'flags' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: expecting prototype for ecryptfs_get_sb(). Prototype was for ecryptfs_mount() instead fs/ecryptfs/main.c:645: warning: Function parameter or member 'vptr' not described in 'inode_info_init_once' Cc: Tyler Hicks <code@tyhicks.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: James Morris <jamorris@linux.microsoft.com> Cc: "Michael A. Halcrow" <mahalcro@us.ibm.com> Cc: "Michael C. Thompson" <mcthomps@us.ibm.com> Cc: ecryptfs@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> [tyhicks: Correct the function documentation for ecryptfs_mount()] Signed-off-by: Tyler Hicks <code@tyhicks.com>
2021-03-30 17:44:53 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: main: Demote a bunch of non-conformant kernel-doc headers Fixes the following W=1 kernel build warning(s): fs/ecryptfs/main.c:28: warning: Incorrect use of kernel-doc format: * Module parameter that defines the ecryptfs_verbosity level. fs/ecryptfs/main.c:30: warning: cannot understand function prototype: 'int ecryptfs_verbosity = 0; ' fs/ecryptfs/main.c:40: warning: cannot understand function prototype: 'unsigned int ecryptfs_message_buf_len = ECRYPTFS_DEFAULT_MSG_CTX_ELEMS; ' fs/ecryptfs/main.c:52: warning: cannot understand function prototype: 'signed long ecryptfs_message_wait_timeout = ECRYPTFS_MAX_MSG_CTX_TTL / HZ; ' fs/ecryptfs/main.c:65: warning: cannot understand function prototype: 'unsigned int ecryptfs_number_of_users = ECRYPTFS_DEFAULT_NUM_USERS; ' fs/ecryptfs/main.c:106: warning: Function parameter or member 'dentry' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Function parameter or member 'lower_file' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Excess function parameter 'ecryptfs_dentry' description in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:244: warning: Function parameter or member 'sbi' not described in 'ecryptfs_parse_options' fs/ecryptfs/main.c:244: warning: Excess function parameter 'sb' description in 'ecryptfs_parse_options' fs/ecryptfs/main.c:478: warning: Function parameter or member 'fs_type' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: Function parameter or member 'flags' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: expecting prototype for ecryptfs_get_sb(). Prototype was for ecryptfs_mount() instead fs/ecryptfs/main.c:645: warning: Function parameter or member 'vptr' not described in 'inode_info_init_once' Cc: Tyler Hicks <code@tyhicks.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: James Morris <jamorris@linux.microsoft.com> Cc: "Michael A. Halcrow" <mahalcro@us.ibm.com> Cc: "Michael C. Thompson" <mcthomps@us.ibm.com> Cc: ecryptfs@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> [tyhicks: Correct the function documentation for ecryptfs_mount()] Signed-off-by: Tyler Hicks <code@tyhicks.com>
2021-03-30 17:44:53 +01:00
eCryptfs: remove netlink transport The netlink transport code has not worked for a while and the miscdev transport is a simpler solution. This patch removes the netlink code and makes the miscdev transport the only eCryptfs kernel to userspace transport. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15 22:02:51 -07:00
[PATCH] eCryptfs: Public key; packet management Public key support code. This reads and writes packets in the header that contain public key encrypted file keys. It calls the messaging code in the previous patch to send and receive encryption and decryption request packets from the userspace daemon. [akpm@osdl.org: cleab fix] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:44 -08:00
ecryptfs: main: Demote a bunch of non-conformant kernel-doc headers Fixes the following W=1 kernel build warning(s): fs/ecryptfs/main.c:28: warning: Incorrect use of kernel-doc format: * Module parameter that defines the ecryptfs_verbosity level. fs/ecryptfs/main.c:30: warning: cannot understand function prototype: 'int ecryptfs_verbosity = 0; ' fs/ecryptfs/main.c:40: warning: cannot understand function prototype: 'unsigned int ecryptfs_message_buf_len = ECRYPTFS_DEFAULT_MSG_CTX_ELEMS; ' fs/ecryptfs/main.c:52: warning: cannot understand function prototype: 'signed long ecryptfs_message_wait_timeout = ECRYPTFS_MAX_MSG_CTX_TTL / HZ; ' fs/ecryptfs/main.c:65: warning: cannot understand function prototype: 'unsigned int ecryptfs_number_of_users = ECRYPTFS_DEFAULT_NUM_USERS; ' fs/ecryptfs/main.c:106: warning: Function parameter or member 'dentry' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Function parameter or member 'lower_file' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Excess function parameter 'ecryptfs_dentry' description in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:244: warning: Function parameter or member 'sbi' not described in 'ecryptfs_parse_options' fs/ecryptfs/main.c:244: warning: Excess function parameter 'sb' description in 'ecryptfs_parse_options' fs/ecryptfs/main.c:478: warning: Function parameter or member 'fs_type' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: Function parameter or member 'flags' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: expecting prototype for ecryptfs_get_sb(). Prototype was for ecryptfs_mount() instead fs/ecryptfs/main.c:645: warning: Function parameter or member 'vptr' not described in 'inode_info_init_once' Cc: Tyler Hicks <code@tyhicks.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: James Morris <jamorris@linux.microsoft.com> Cc: "Michael A. Halcrow" <mahalcro@us.ibm.com> Cc: "Michael C. Thompson" <mcthomps@us.ibm.com> Cc: ecryptfs@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> [tyhicks: Correct the function documentation for ecryptfs_mount()] Signed-off-by: Tyler Hicks <code@tyhicks.com>
2021-03-30 17:44:53 +01:00
[PATCH] eCryptfs: Public key; packet management Public key support code. This reads and writes packets in the header that contain public key encrypted file keys. It calls the messaging code in the previous patch to send and receive encryption and decryption request packets from the userspace daemon. [akpm@osdl.org: cleab fix] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:44 -08:00
eCryptfs: remove netlink transport The netlink transport code has not worked for a while and the miscdev transport is a simpler solution. This patch removes the netlink code and makes the miscdev transport the only eCryptfs kernel to userspace transport. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15 22:02:51 -07:00
[PATCH] eCryptfs: Public key; packet management Public key support code. This reads and writes packets in the header that contain public key encrypted file keys. It calls the messaging code in the previous patch to send and receive encryption and decryption request packets from the userspace daemon. [akpm@osdl.org: cleab fix] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:44 -08:00
eCryptfs: remove netlink transport The netlink transport code has not worked for a while and the miscdev transport is a simpler solution. This patch removes the netlink code and makes the miscdev transport the only eCryptfs kernel to userspace transport. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15 22:02:51 -07:00
[PATCH] eCryptfs: Public key; packet management Public key support code. This reads and writes packets in the header that contain public key encrypted file keys. It calls the messaging code in the previous patch to send and receive encryption and decryption request packets from the userspace daemon. [akpm@osdl.org: cleab fix] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:44 -08:00
ecryptfs: main: Demote a bunch of non-conformant kernel-doc headers Fixes the following W=1 kernel build warning(s): fs/ecryptfs/main.c:28: warning: Incorrect use of kernel-doc format: * Module parameter that defines the ecryptfs_verbosity level. fs/ecryptfs/main.c:30: warning: cannot understand function prototype: 'int ecryptfs_verbosity = 0; ' fs/ecryptfs/main.c:40: warning: cannot understand function prototype: 'unsigned int ecryptfs_message_buf_len = ECRYPTFS_DEFAULT_MSG_CTX_ELEMS; ' fs/ecryptfs/main.c:52: warning: cannot understand function prototype: 'signed long ecryptfs_message_wait_timeout = ECRYPTFS_MAX_MSG_CTX_TTL / HZ; ' fs/ecryptfs/main.c:65: warning: cannot understand function prototype: 'unsigned int ecryptfs_number_of_users = ECRYPTFS_DEFAULT_NUM_USERS; ' fs/ecryptfs/main.c:106: warning: Function parameter or member 'dentry' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Function parameter or member 'lower_file' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Excess function parameter 'ecryptfs_dentry' description in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:244: warning: Function parameter or member 'sbi' not described in 'ecryptfs_parse_options' fs/ecryptfs/main.c:244: warning: Excess function parameter 'sb' description in 'ecryptfs_parse_options' fs/ecryptfs/main.c:478: warning: Function parameter or member 'fs_type' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: Function parameter or member 'flags' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: expecting prototype for ecryptfs_get_sb(). Prototype was for ecryptfs_mount() instead fs/ecryptfs/main.c:645: warning: Function parameter or member 'vptr' not described in 'inode_info_init_once' Cc: Tyler Hicks <code@tyhicks.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: James Morris <jamorris@linux.microsoft.com> Cc: "Michael A. Halcrow" <mahalcro@us.ibm.com> Cc: "Michael C. Thompson" <mcthomps@us.ibm.com> Cc: ecryptfs@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> [tyhicks: Correct the function documentation for ecryptfs_mount()] Signed-off-by: Tyler Hicks <code@tyhicks.com>
2021-03-30 17:44:53 +01:00
[PATCH] eCryptfs: Public key; packet management Public key support code. This reads and writes packets in the header that contain public key encrypted file keys. It calls the messaging code in the previous patch to send and receive encryption and decryption request packets from the userspace daemon. [akpm@osdl.org: cleab fix] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:44 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: main: Demote a bunch of non-conformant kernel-doc headers Fixes the following W=1 kernel build warning(s): fs/ecryptfs/main.c:28: warning: Incorrect use of kernel-doc format: * Module parameter that defines the ecryptfs_verbosity level. fs/ecryptfs/main.c:30: warning: cannot understand function prototype: 'int ecryptfs_verbosity = 0; ' fs/ecryptfs/main.c:40: warning: cannot understand function prototype: 'unsigned int ecryptfs_message_buf_len = ECRYPTFS_DEFAULT_MSG_CTX_ELEMS; ' fs/ecryptfs/main.c:52: warning: cannot understand function prototype: 'signed long ecryptfs_message_wait_timeout = ECRYPTFS_MAX_MSG_CTX_TTL / HZ; ' fs/ecryptfs/main.c:65: warning: cannot understand function prototype: 'unsigned int ecryptfs_number_of_users = ECRYPTFS_DEFAULT_NUM_USERS; ' fs/ecryptfs/main.c:106: warning: Function parameter or member 'dentry' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Function parameter or member 'lower_file' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Excess function parameter 'ecryptfs_dentry' description in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:244: warning: Function parameter or member 'sbi' not described in 'ecryptfs_parse_options' fs/ecryptfs/main.c:244: warning: Excess function parameter 'sb' description in 'ecryptfs_parse_options' fs/ecryptfs/main.c:478: warning: Function parameter or member 'fs_type' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: Function parameter or member 'flags' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: expecting prototype for ecryptfs_get_sb(). Prototype was for ecryptfs_mount() instead fs/ecryptfs/main.c:645: warning: Function parameter or member 'vptr' not described in 'inode_info_init_once' Cc: Tyler Hicks <code@tyhicks.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: James Morris <jamorris@linux.microsoft.com> Cc: "Michael A. Halcrow" <mahalcro@us.ibm.com> Cc: "Michael C. Thompson" <mcthomps@us.ibm.com> Cc: ecryptfs@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> [tyhicks: Correct the function documentation for ecryptfs_mount()] Signed-off-by: Tyler Hicks <code@tyhicks.com>
2021-03-30 17:44:53 +01:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: set up and destroy persistent lower file This patch sets up and destroys the persistent lower file for each eCryptfs inode. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:09 -07:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: set up and destroy persistent lower file This patch sets up and destroys the persistent lower file for each eCryptfs inode. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:09 -07:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: set up and destroy persistent lower file This patch sets up and destroys the persistent lower file for each eCryptfs inode. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:09 -07:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: set up and destroy persistent lower file This patch sets up and destroys the persistent lower file for each eCryptfs inode. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:09 -07:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: set up and destroy persistent lower file This patch sets up and destroys the persistent lower file for each eCryptfs inode. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:09 -07:00
CRED: Pass credentials through dentry_open() Pass credentials through dentry_open() so that the COW creds patch can have SELinux's flush_unauthorized_files() pass the appropriate creds back to itself when it opens its null chardev. The security_dentry_open() call also now takes a creds pointer, as does the dentry_open hook in struct security_operations. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: James Morris <jmorris@namei.org>
2008-11-14 10:39:22 +11:00
ecryptfs: get rid of pointless mount references in ecryptfs dentries ->lower_path.mnt has the same value for all dentries on given ecryptfs instance and if somebody goes for mountpoint-crossing variant where that would not be true, we can deal with that when it happens (and _not_ with duplicating these reference into each dentry). As it is, we are better off just sticking a reference into ecryptfs-private part of superblock and keeping it pinned until ->kill_sb(). That way we can stick a reference to underlying dentry right into ->d_fsdata of ecryptfs one, getting rid of indirection through struct ecryptfs_dentry_info, along with the entire struct ecryptfs_dentry_info machinery. [kudos to Dan Carpenter for spotting a bug in ecryptfs_get_tree() part] Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-07-24 22:45:09 -04:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: set up and destroy persistent lower file This patch sets up and destroys the persistent lower file for each eCryptfs inode. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:09 -07:00
ecryptfs: get rid of pointless mount references in ecryptfs dentries ->lower_path.mnt has the same value for all dentries on given ecryptfs instance and if somebody goes for mountpoint-crossing variant where that would not be true, we can deal with that when it happens (and _not_ with duplicating these reference into each dentry). As it is, we are better off just sticking a reference into ecryptfs-private part of superblock and keeping it pinned until ->kill_sb(). That way we can stick a reference to underlying dentry right into ->d_fsdata of ecryptfs one, getting rid of indirection through struct ecryptfs_dentry_info, along with the entire struct ecryptfs_dentry_info machinery. [kudos to Dan Carpenter for spotting a bug in ecryptfs_get_tree() part] Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-07-24 22:45:09 -04:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
ecryptfs: get rid of pointless mount references in ecryptfs dentries ->lower_path.mnt has the same value for all dentries on given ecryptfs instance and if somebody goes for mountpoint-crossing variant where that would not be true, we can deal with that when it happens (and _not_ with duplicating these reference into each dentry). As it is, we are better off just sticking a reference into ecryptfs-private part of superblock and keeping it pinned until ->kill_sb(). That way we can stick a reference to underlying dentry right into ->d_fsdata of ecryptfs one, getting rid of indirection through struct ecryptfs_dentry_info, along with the entire struct ecryptfs_dentry_info machinery. [kudos to Dan Carpenter for spotting a bug in ecryptfs_get_tree() part] Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-07-24 22:45:09 -04:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: set up and destroy persistent lower file This patch sets up and destroys the persistent lower file for each eCryptfs inode. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:09 -07:00
eCryptfs: Fix new inode race condition Only unlock and d_add() new inodes after the plaintext inode size has been read from the lower filesystem. This fixes a race condition that was sometimes seen during a multi-job kernel build in an eCryptfs mount. https://bugzilla.kernel.org/show_bug.cgi?id=36002 Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Reported-by: David <david@unsolicited.net> Tested-by: David <david@unsolicited.net>
2011-05-24 03:49:02 -05:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: Fix new inode race condition Only unlock and d_add() new inodes after the plaintext inode size has been read from the lower filesystem. This fixes a race condition that was sometimes seen during a multi-job kernel build in an eCryptfs mount. https://bugzilla.kernel.org/show_bug.cgi?id=36002 Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Reported-by: David <david@unsolicited.net> Tested-by: David <david@unsolicited.net>
2011-05-24 03:49:02 -05:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: Fix new inode race condition Only unlock and d_add() new inodes after the plaintext inode size has been read from the lower filesystem. This fixes a race condition that was sometimes seen during a multi-job kernel build in an eCryptfs mount. https://bugzilla.kernel.org/show_bug.cgi?id=36002 Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Reported-by: David <david@unsolicited.net> Tested-by: David <david@unsolicited.net>
2011-05-24 03:49:02 -05:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
eCryptfs: Write out all dirty pages just before releasing the lower file Fixes a regression caused by: 821f749 eCryptfs: Revert to a writethrough cache model That patch reverted some code (specifically, 32001d6f) that was necessary to properly handle open() -> mmap() -> close() -> dirty pages -> munmap(), because the lower file could be closed before the dirty pages are written out. Rather than reapplying 32001d6f, this approach is a better way of ensuring that the lower file is still open in order to handle writing out the dirty pages. It is called from ecryptfs_release(), while we have a lock on the lower file pointer, just before the lower file gets the final fput() and we overwrite the pointer. https://launchpad.net/bugs/1047261 Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Artemy Tregubenko <me@arty.name> Tested-by: Artemy Tregubenko <me@arty.name> Tested-by: Colin Ian King <colin.king@canonical.com>
2012-09-12 18:02:46 -07:00
eCryptfs: Add reference counting to lower files For any given lower inode, eCryptfs keeps only one lower file open and multiplexes all eCryptfs file operations through that lower file. The lower file was considered "persistent" and stayed open from the first lookup through the lifetime of the inode. This patch keeps the notion of a single, per-inode lower file, but adds reference counting around the lower file so that it is closed when not currently in use. If the reference count is at 0 when an operation (such as open, create, etc.) needs to use the lower file, a new lower file is opened. Since the file is no longer persistent, all references to the term persistent file are changed to lower file. Locking is added around the sections of code that opens the lower file and assign the pointer in the inode info, as well as the code the fputs the lower file when all eCryptfs users are done with it. This patch is needed to fix issues, when mounted on top of the NFSv3 client, where the lower file is left silly renamed until the eCryptfs inode is destroyed. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-04-14 15:35:11 -05:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: add key list structure; search keyring Add support structures for handling multiple keys. The list in crypt_stat contains the key identifiers for all of the keys that should be used for encrypting each file's File Encryption Key (FEK). For now, each inode inherits this list from the mount-wide crypt_stat struct, via the ecryptfs_copy_mount_wide_sigs_to_inode_sigs() function. This patch also removes the global key tfm from the mount-wide crypt_stat struct, instead keeping a list of tfm's meant for dealing with the various inode FEK's. eCryptfs will now search the user's keyring for FEK's parsed from the existing file metadata, so the user can make keys available at any time before or after mounting. Now that multiple FEK packets can be written to the file metadata, we need to be more meticulous about size limits. The updates to the code for writing out packets to the file metadata makes sizes and limits more explicit, uniformly expressed, and (hopefully) easier to follow. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:53 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: add key list structure; search keyring Add support structures for handling multiple keys. The list in crypt_stat contains the key identifiers for all of the keys that should be used for encrypting each file's File Encryption Key (FEK). For now, each inode inherits this list from the mount-wide crypt_stat struct, via the ecryptfs_copy_mount_wide_sigs_to_inode_sigs() function. This patch also removes the global key tfm from the mount-wide crypt_stat struct, instead keeping a list of tfm's meant for dealing with the various inode FEK's. eCryptfs will now search the user's keyring for FEK's parsed from the existing file metadata, so the user can make keys available at any time before or after mounting. Now that multiple FEK packets can be written to the file metadata, we need to be more meticulous about size limits. The updates to the code for writing out packets to the file metadata makes sizes and limits more explicit, uniformly expressed, and (hopefully) easier to follow. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:53 -07:00
eCryptfs: verify authentication tokens before their use Authentication tokens content may change if another requestor calls the update() method of the corresponding key. The new function ecryptfs_verify_auth_tok_from_key() retrieves the authentication token from the provided key and verifies if it is still valid before being used to encrypt or decrypt an eCryptfs file. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> [tyhicks: Minor formatting changes] Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-03-21 16:00:53 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: add key list structure; search keyring Add support structures for handling multiple keys. The list in crypt_stat contains the key identifiers for all of the keys that should be used for encrypting each file's File Encryption Key (FEK). For now, each inode inherits this list from the mount-wide crypt_stat struct, via the ecryptfs_copy_mount_wide_sigs_to_inode_sigs() function. This patch also removes the global key tfm from the mount-wide crypt_stat struct, instead keeping a list of tfm's meant for dealing with the various inode FEK's. eCryptfs will now search the user's keyring for FEK's parsed from the existing file metadata, so the user can make keys available at any time before or after mounting. Now that multiple FEK packets can be written to the file metadata, we need to be more meticulous about size limits. The updates to the code for writing out packets to the file metadata makes sizes and limits more explicit, uniformly expressed, and (hopefully) easier to follow. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:53 -07:00
eCryptfs: remove assignments in if-statements Remove assignments in if-statements. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:06 -07:00
eCryptfs: verify authentication tokens before their use Authentication tokens content may change if another requestor calls the update() method of the corresponding key. The new function ecryptfs_verify_auth_tok_from_key() retrieves the authentication token from the provided key and verifies if it is still valid before being used to encrypt or decrypt an eCryptfs file. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> [tyhicks: Minor formatting changes] Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-03-21 16:00:53 +01:00
eCryptfs: remove assignments in if-statements Remove assignments in if-statements. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:06 -07:00
eCryptfs: add key list structure; search keyring Add support structures for handling multiple keys. The list in crypt_stat contains the key identifiers for all of the keys that should be used for encrypting each file's File Encryption Key (FEK). For now, each inode inherits this list from the mount-wide crypt_stat struct, via the ecryptfs_copy_mount_wide_sigs_to_inode_sigs() function. This patch also removes the global key tfm from the mount-wide crypt_stat struct, instead keeping a list of tfm's meant for dealing with the various inode FEK's. eCryptfs will now search the user's keyring for FEK's parsed from the existing file metadata, so the user can make keys available at any time before or after mounting. Now that multiple FEK packets can be written to the file metadata, we need to be more meticulous about size limits. The updates to the code for writing out packets to the file metadata makes sizes and limits more explicit, uniformly expressed, and (hopefully) easier to follow. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:53 -07:00
ecryptfs: propagate key errors up at mount time Mounting with invalid key signatures should probably fail, if they were specifically requested but not available. Also fix case checks in process_request_key_err() for the right sign of the errnos, as spotted by Jan Tluka. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Jan Tluka <jtluka@redhat.com> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:30:04 -07:00
eCryptfs: write lock requested keys A requested key is write locked in order to prevent modifications on the authentication token while it is being used. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-03-21 16:00:55 +01:00
eCryptfs: add key list structure; search keyring Add support structures for handling multiple keys. The list in crypt_stat contains the key identifiers for all of the keys that should be used for encrypting each file's File Encryption Key (FEK). For now, each inode inherits this list from the mount-wide crypt_stat struct, via the ecryptfs_copy_mount_wide_sigs_to_inode_sigs() function. This patch also removes the global key tfm from the mount-wide crypt_stat struct, instead keeping a list of tfm's meant for dealing with the various inode FEK's. eCryptfs will now search the user's keyring for FEK's parsed from the existing file metadata, so the user can make keys available at any time before or after mounting. Now that multiple FEK packets can be written to the file metadata, we need to be more meticulous about size limits. The updates to the code for writing out packets to the file metadata makes sizes and limits more explicit, uniformly expressed, and (hopefully) easier to follow. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:53 -07:00
eCryptfs: write lock requested keys A requested key is write locked in order to prevent modifications on the authentication token while it is being used. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-03-21 16:00:55 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: propagate key errors up at mount time Mounting with invalid key signatures should probably fail, if they were specifically requested but not available. Also fix case checks in process_request_key_err() for the right sign of the errnos, as spotted by Jan Tluka. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Jan Tluka <jtluka@redhat.com> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:30:04 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: add key list structure; search keyring Add support structures for handling multiple keys. The list in crypt_stat contains the key identifiers for all of the keys that should be used for encrypting each file's File Encryption Key (FEK). For now, each inode inherits this list from the mount-wide crypt_stat struct, via the ecryptfs_copy_mount_wide_sigs_to_inode_sigs() function. This patch also removes the global key tfm from the mount-wide crypt_stat struct, instead keeping a list of tfm's meant for dealing with the various inode FEK's. eCryptfs will now search the user's keyring for FEK's parsed from the existing file metadata, so the user can make keys available at any time before or after mounting. Now that multiple FEK packets can be written to the file metadata, we need to be more meticulous about size limits. The updates to the code for writing out packets to the file metadata makes sizes and limits more explicit, uniformly expressed, and (hopefully) easier to follow. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:53 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
Ecryptfs: Add mount option to check uid of device being mounted = expect uid Close a TOCTOU race for mounts done via ecryptfs-mount-private. The mount source (device) can be raced when the ownership test is done in userspace. Provide Ecryptfs a means to force the uid check at mount time. Signed-off-by: John Johansen <john.johansen@canonical.com> Cc: <stable@kernel.org> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-07-22 08:14:15 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Factor out mount option validation Under the new mount API, mount options are parsed one at a time. Any validation that examines multiple options must be done after parsing is complete, so factor out a ecryptfs_validate_options() which can be called separately. To facilitate this, temporarily move the local variables that tracked whether various options have been set in the parsing function, into the ecryptfs_mount_crypt_stat structure so that they can be examined later. These will be moved to a more ephemeral struct in the mount api conversion patch to follow. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-2-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:38 -05:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
ecryptfs: Factor out mount option validation Under the new mount API, mount options are parsed one at a time. Any validation that examines multiple options must be done after parsing is complete, so factor out a ecryptfs_validate_options() which can be called separately. To facilitate this, temporarily move the local variables that tracked whether various options have been set in the parsing function, into the ecryptfs_mount_crypt_stat structure so that they can be examined later. These will be moved to a more ephemeral struct in the mount api conversion patch to follow. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-2-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:38 -05:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
ecryptfs: Factor out mount option validation Under the new mount API, mount options are parsed one at a time. Any validation that examines multiple options must be done after parsing is complete, so factor out a ecryptfs_validate_options() which can be called separately. To facilitate this, temporarily move the local variables that tracked whether various options have been set in the parsing function, into the ecryptfs_mount_crypt_stat structure so that they can be examined later. These will be moved to a more ephemeral struct in the mount api conversion patch to follow. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-2-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:38 -05:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
ecryptfs: Factor out mount option validation Under the new mount API, mount options are parsed one at a time. Any validation that examines multiple options must be done after parsing is complete, so factor out a ecryptfs_validate_options() which can be called separately. To facilitate this, temporarily move the local variables that tracked whether various options have been set in the parsing function, into the ecryptfs_mount_crypt_stat structure so that they can be examined later. These will be moved to a more ephemeral struct in the mount api conversion patch to follow. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-2-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:38 -05:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: kmem_cache objects for multiple keys; init/exit functions Introduce kmem_cache objects for handling multiple keys per inode. Add calls in the module init and exit code to call the key list initialization/destruction functions. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:55 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
ecryptfs: string copy cleanup Clean up overcomplicated string copy, which also gets rid of this bogus warning: fs/ecryptfs/main.c: In function 'ecryptfs_parse_options': include/asm/arch/string_32.h:75: warning: array subscript is above array bounds Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:30:05 -07:00
eCryptfs: ensure copy to crypt_stat->cipher does not overrun The patch 237fead61998: "[PATCH] ecryptfs: fs/Makefile and fs/Kconfig" from Oct 4, 2006, leads to the following static checker warning: fs/ecryptfs/crypto.c:846 ecryptfs_new_file_context() error: off-by-one overflow 'crypt_stat->cipher' size 32. rl = '0-32' There is a mismatch between the size of ecryptfs_crypt_stat.cipher and ecryptfs_mount_crypt_stat.global_default_cipher_name causing the copy of the cipher name to cause a off-by-one string copy error. This fix ensures the space reserved for this string is the same size including the trailing zero at the end throughout ecryptfs. This fix avoids increasing the size of ecryptfs_crypt_stat.cipher and also ecryptfs_parse_tag_70_packet_silly_stack.cipher_string and instead reduces the of ECRYPTFS_MAX_CIPHER_NAME_SIZE to 31 and includes the + 1 for the end of string terminator. NOTE: An overflow is not possible in practice since the value copied into global_default_cipher_name is validated by ecryptfs_code_for_cipher_string() at mount time. None of the allowed cipher strings are long enough to cause the potential buffer overflow fixed by this patch. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> [tyhicks: Added the NOTE about the overflow not being triggerable] Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
2015-02-23 11:34:10 +00:00
ecryptfs: Replace strcpy with strscpy in ecryptfs_validate_options strcpy() has been deprecated [1] because it performs no bounds checking on the destination buffer, which can lead to buffer overflows. Replace it with the safer strscpy(). Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1] Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Signed-off-by: Tyler Hicks <code@tyhicks.com>
2025-12-13 12:04:54 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: Filename Encryption: mount option Enable mount-wide filename encryption by providing the Filename Encryption Key (FNEK) signature as a mount option. Note that the ecryptfs-utils userspace package versions 61 or later support this option. When mounting with ecryptfs-utils version 61 or later, the mount helper will detect the availability of the passphrase-based filename encryption in the kernel (via the eCryptfs sysfs handle) and query the user interactively as to whether or not he wants to enable the feature for the mount. If the user enables filename encryption, the mount helper will then prompt for the FNEK signature that the user wishes to use, suggesting by default the signature for the mount passphrase that the user has already entered for encrypting the file contents. When not using the mount helper, the user can specify the signature for the passphrase key with the ecryptfs_fnek_sig= mount option. This key must be available in the user's keyring. The mount helper usually takes care of this step. If, however, the user is not mounting with the mount helper, then he will need to enter the passphrase key into his keyring with some other utility prior to mounting, such as ecryptfs-manager. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 14:42:01 -08:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
ecryptfs: Replace strcpy with strscpy in ecryptfs_validate_options strcpy() has been deprecated [1] because it performs no bounds checking on the destination buffer, which can lead to buffer overflows. Replace it with the safer strscpy(). Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1] Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Signed-off-by: Tyler Hicks <code@tyhicks.com>
2025-12-13 12:04:54 +01:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] eCryptfs: Clean up crypto initialization Clean up the crypto initialization code; let the crypto API take care of the key size checks. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-30 22:07:16 -08:00
eCryptfs: Filename Encryption: mount option Enable mount-wide filename encryption by providing the Filename Encryption Key (FNEK) signature as a mount option. Note that the ecryptfs-utils userspace package versions 61 or later support this option. When mounting with ecryptfs-utils version 61 or later, the mount helper will detect the availability of the passphrase-based filename encryption in the kernel (via the eCryptfs sysfs handle) and query the user interactively as to whether or not he wants to enable the feature for the mount. If the user enables filename encryption, the mount helper will then prompt for the FNEK signature that the user wishes to use, suggesting by default the signature for the mount passphrase that the user has already entered for encrypting the file contents. When not using the mount helper, the user can specify the signature for the passphrase key with the ecryptfs_fnek_sig= mount option. This key must be available in the user's keyring. The mount helper usually takes care of this step. If, however, the user is not mounting with the mount helper, then he will need to enter the passphrase key into his keyring with some other utility prior to mounting, such as ecryptfs-manager. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 14:42:01 -08:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
eCryptfs: Filename Encryption: mount option Enable mount-wide filename encryption by providing the Filename Encryption Key (FNEK) signature as a mount option. Note that the ecryptfs-utils userspace package versions 61 or later support this option. When mounting with ecryptfs-utils version 61 or later, the mount helper will detect the availability of the passphrase-based filename encryption in the kernel (via the eCryptfs sysfs handle) and query the user interactively as to whether or not he wants to enable the feature for the mount. If the user enables filename encryption, the mount helper will then prompt for the FNEK signature that the user wishes to use, suggesting by default the signature for the mount passphrase that the user has already entered for encrypting the file contents. When not using the mount helper, the user can specify the signature for the passphrase key with the ecryptfs_fnek_sig= mount option. This key must be available in the user's keyring. The mount helper usually takes care of this step. If, however, the user is not mounting with the mount helper, then he will need to enter the passphrase key into his keyring with some other utility prior to mounting, such as ecryptfs-manager. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 14:42:01 -08:00
eCryptfs: check for eCryptfs cipher support at mount The issue occurs when eCryptfs is mounted with a cipher supported by the crypto subsystem but not by eCryptfs. The mount succeeds and an error does not occur until a write. This change checks for eCryptfs cipher support at mount time. Resolves Launchpad issue #338914, reported by Tyler Hicks in 03/2009. https://bugs.launchpad.net/ecryptfs/+bug/338914 Signed-off-by: Tim Sally <tsally@atomicpeace.com> Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
2012-07-12 19:10:24 -04:00
ecryptfs: add missing \n to end of various error messages Trival fix, some error messages are missing a \n, so add it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
2016-09-27 05:18:02 -07:00
eCryptfs: check for eCryptfs cipher support at mount The issue occurs when eCryptfs is mounted with a cipher supported by the crypto subsystem but not by eCryptfs. The mount succeeds and an error does not occur until a write. This change checks for eCryptfs cipher support at mount time. Resolves Launchpad issue #338914, reported by Tyler Hicks in 03/2009. https://bugs.launchpad.net/ecryptfs/+bug/338914 Signed-off-by: Tim Sally <tsally@atomicpeace.com> Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
2012-07-12 19:10:24 -04:00
ecryptfs: check for existing key_tfm at mount time Jeff Moyer pointed out that a mount; umount loop of ecryptfs, with the same cipher & other mount options, created a new ecryptfs_key_tfm_cache item each time, and the cache could grow quite large this way. Looking at this with mhalcrow, we saw that ecryptfs_parse_options() unconditionally called ecryptfs_add_new_key_tfm(), which is what was adding these items. Refactor ecryptfs_get_tfm_and_mutex_for_cipher_name() to create a new helper function, ecryptfs_tfm_exists(), which checks for the cipher on the cached key_tfm_list, and sets a pointer to it if it exists. This can then be called from ecryptfs_parse_options(), and new key_tfm's can be added only when a cached one is not found. With list locking changes suggested by akpm. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 01:38:37 -08:00
eCryptfs: Filename Encryption: mount option Enable mount-wide filename encryption by providing the Filename Encryption Key (FNEK) signature as a mount option. Note that the ecryptfs-utils userspace package versions 61 or later support this option. When mounting with ecryptfs-utils version 61 or later, the mount helper will detect the availability of the passphrase-based filename encryption in the kernel (via the eCryptfs sysfs handle) and query the user interactively as to whether or not he wants to enable the feature for the mount. If the user enables filename encryption, the mount helper will then prompt for the FNEK signature that the user wishes to use, suggesting by default the signature for the mount passphrase that the user has already entered for encrypting the file contents. When not using the mount helper, the user can specify the signature for the passphrase key with the ecryptfs_fnek_sig= mount option. This key must be available in the user's keyring. The mount helper usually takes care of this step. If, however, the user is not mounting with the mount helper, then he will need to enter the passphrase key into his keyring with some other utility prior to mounting, such as ecryptfs-manager. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 14:42:01 -08:00
ecryptfs: check for existing key_tfm at mount time Jeff Moyer pointed out that a mount; umount loop of ecryptfs, with the same cipher & other mount options, created a new ecryptfs_key_tfm_cache item each time, and the cache could grow quite large this way. Looking at this with mhalcrow, we saw that ecryptfs_parse_options() unconditionally called ecryptfs_add_new_key_tfm(), which is what was adding these items. Refactor ecryptfs_get_tfm_and_mutex_for_cipher_name() to create a new helper function, ecryptfs_tfm_exists(), which checks for the cipher on the cached key_tfm_list, and sets a pointer to it if it exists. This can then be called from ecryptfs_parse_options(), and new key_tfm's can be added only when a cached one is not found. With list locking changes suggested by akpm. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 01:38:37 -08:00
eCryptfs: Filename Encryption: mount option Enable mount-wide filename encryption by providing the Filename Encryption Key (FNEK) signature as a mount option. Note that the ecryptfs-utils userspace package versions 61 or later support this option. When mounting with ecryptfs-utils version 61 or later, the mount helper will detect the availability of the passphrase-based filename encryption in the kernel (via the eCryptfs sysfs handle) and query the user interactively as to whether or not he wants to enable the feature for the mount. If the user enables filename encryption, the mount helper will then prompt for the FNEK signature that the user wishes to use, suggesting by default the signature for the mount passphrase that the user has already entered for encrypting the file contents. When not using the mount helper, the user can specify the signature for the passphrase key with the ecryptfs_fnek_sig= mount option. This key must be available in the user's keyring. The mount helper usually takes care of this step. If, however, the user is not mounting with the mount helper, then he will need to enter the passphrase key into his keyring with some other utility prior to mounting, such as ecryptfs-manager. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 14:42:01 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: Filename Encryption: mount option Enable mount-wide filename encryption by providing the Filename Encryption Key (FNEK) signature as a mount option. Note that the ecryptfs-utils userspace package versions 61 or later support this option. When mounting with ecryptfs-utils version 61 or later, the mount helper will detect the availability of the passphrase-based filename encryption in the kernel (via the eCryptfs sysfs handle) and query the user interactively as to whether or not he wants to enable the feature for the mount. If the user enables filename encryption, the mount helper will then prompt for the FNEK signature that the user wishes to use, suggesting by default the signature for the mount passphrase that the user has already entered for encrypting the file contents. When not using the mount helper, the user can specify the signature for the passphrase key with the ecryptfs_fnek_sig= mount option. This key must be available in the user's keyring. The mount helper usually takes care of this step. If, however, the user is not mounting with the mount helper, then he will need to enter the passphrase key into his keyring with some other utility prior to mounting, such as ecryptfs-manager. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 14:42:01 -08:00
eCryptfs: remove assignments in if-statements Remove assignments in if-statements. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:06 -07:00
eCryptfs: Filename Encryption: mount option Enable mount-wide filename encryption by providing the Filename Encryption Key (FNEK) signature as a mount option. Note that the ecryptfs-utils userspace package versions 61 or later support this option. When mounting with ecryptfs-utils version 61 or later, the mount helper will detect the availability of the passphrase-based filename encryption in the kernel (via the eCryptfs sysfs handle) and query the user interactively as to whether or not he wants to enable the feature for the mount. If the user enables filename encryption, the mount helper will then prompt for the FNEK signature that the user wishes to use, suggesting by default the signature for the mount passphrase that the user has already entered for encrypting the file contents. When not using the mount helper, the user can specify the signature for the passphrase key with the ecryptfs_fnek_sig= mount option. This key must be available in the user's keyring. The mount helper usually takes care of this step. If, however, the user is not mounting with the mount helper, then he will need to enter the passphrase key into his keyring with some other utility prior to mounting, such as ecryptfs-manager. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 14:42:01 -08:00
eCryptfs: add key list structure; search keyring Add support structures for handling multiple keys. The list in crypt_stat contains the key identifiers for all of the keys that should be used for encrypting each file's File Encryption Key (FEK). For now, each inode inherits this list from the mount-wide crypt_stat struct, via the ecryptfs_copy_mount_wide_sigs_to_inode_sigs() function. This patch also removes the global key tfm from the mount-wide crypt_stat struct, instead keeping a list of tfm's meant for dealing with the various inode FEK's. eCryptfs will now search the user's keyring for FEK's parsed from the existing file metadata, so the user can make keys available at any time before or after mounting. Now that multiple FEK packets can be written to the file metadata, we need to be more meticulous about size limits. The updates to the code for writing out packets to the file metadata makes sizes and limits more explicit, uniformly expressed, and (hopefully) easier to follow. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:53 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
Ban ecryptfs over ecryptfs This is a seriously simplified patch from Eric Sandeen; copy of rationale follows: === mounting stacked ecryptfs on ecryptfs has been shown to lead to bugs in testing. For crypto info in xattr, there is no mechanism for handling this at all, and for normal file headers, we run into other trouble: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffffa015b0b3>] ecryptfs_d_revalidate+0x43/0xa0 [ecryptfs] ... There doesn't seem to be any good usecase for this, so I'd suggest just disallowing the configuration. Based on a patch originally, I believe, from Mike Halcrow. === Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-05-17 00:59:46 -04:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: main: Demote a bunch of non-conformant kernel-doc headers Fixes the following W=1 kernel build warning(s): fs/ecryptfs/main.c:28: warning: Incorrect use of kernel-doc format: * Module parameter that defines the ecryptfs_verbosity level. fs/ecryptfs/main.c:30: warning: cannot understand function prototype: 'int ecryptfs_verbosity = 0; ' fs/ecryptfs/main.c:40: warning: cannot understand function prototype: 'unsigned int ecryptfs_message_buf_len = ECRYPTFS_DEFAULT_MSG_CTX_ELEMS; ' fs/ecryptfs/main.c:52: warning: cannot understand function prototype: 'signed long ecryptfs_message_wait_timeout = ECRYPTFS_MAX_MSG_CTX_TTL / HZ; ' fs/ecryptfs/main.c:65: warning: cannot understand function prototype: 'unsigned int ecryptfs_number_of_users = ECRYPTFS_DEFAULT_NUM_USERS; ' fs/ecryptfs/main.c:106: warning: Function parameter or member 'dentry' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Function parameter or member 'lower_file' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Excess function parameter 'ecryptfs_dentry' description in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:244: warning: Function parameter or member 'sbi' not described in 'ecryptfs_parse_options' fs/ecryptfs/main.c:244: warning: Excess function parameter 'sb' description in 'ecryptfs_parse_options' fs/ecryptfs/main.c:478: warning: Function parameter or member 'fs_type' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: Function parameter or member 'flags' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: expecting prototype for ecryptfs_get_sb(). Prototype was for ecryptfs_mount() instead fs/ecryptfs/main.c:645: warning: Function parameter or member 'vptr' not described in 'inode_info_init_once' Cc: Tyler Hicks <code@tyhicks.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: James Morris <jamorris@linux.microsoft.com> Cc: "Michael A. Halcrow" <mahalcro@us.ibm.com> Cc: "Michael C. Thompson" <mcthomps@us.ibm.com> Cc: ecryptfs@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> [tyhicks: Correct the function documentation for ecryptfs_mount()] Signed-off-by: Tyler Hicks <code@tyhicks.com>
2021-03-30 17:44:53 +01:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
eCryptfs: Force RO mount when encrypted view is enabled The ecryptfs_encrypted_view mount option greatly changes the functionality of an eCryptfs mount. Instead of encrypting and decrypting lower files, it provides a unified view of the encrypted files in the lower filesystem. The presence of the ecryptfs_encrypted_view mount option is intended to force a read-only mount and modifying files is not supported when the feature is in use. See the following commit for more information: e77a56d [PATCH] eCryptfs: Encrypted passthrough This patch forces the mount to be read-only when the ecryptfs_encrypted_view mount option is specified by setting the MS_RDONLY flag on the superblock. Additionally, this patch removes some broken logic in ecryptfs_open() that attempted to prevent modifications of files when the encrypted view feature was in use. The check in ecryptfs_open() was not sufficient to prevent file modifications using system calls that do not operate on a file descriptor. Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Priya Bansal <p.bansal@samsung.com> Cc: stable@vger.kernel.org # v2.6.21+: e77a56d [PATCH] eCryptfs: Encrypted passthrough
2014-10-07 15:51:55 -05:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
ecryptfs: fix kernel panic with null dev_name When mounting eCryptfs, a null "dev_name" argument to ecryptfs_mount() causes a kernel panic if the parsed options are valid. The easiest way to reproduce this is to call mount() from userspace with an existing eCryptfs mount's options and a "source" argument of 0. Error out if "dev_name" is null in ecryptfs_mount() Fixes: 237fead61998 ("[PATCH] ecryptfs: fs/Makefile and fs/Kconfig") Cc: stable@vger.kernel.org Signed-off-by: Jeffrey Mitchell <jeffrey.mitchell@starlab.io> Signed-off-by: Tyler Hicks <code@tyhicks.com>
2021-02-26 15:00:23 -06:00
eCryptfs: Force RO mount when encrypted view is enabled The ecryptfs_encrypted_view mount option greatly changes the functionality of an eCryptfs mount. Instead of encrypting and decrypting lower files, it provides a unified view of the encrypted files in the lower filesystem. The presence of the ecryptfs_encrypted_view mount option is intended to force a read-only mount and modifying files is not supported when the feature is in use. See the following commit for more information: e77a56d [PATCH] eCryptfs: Encrypted passthrough This patch forces the mount to be read-only when the ecryptfs_encrypted_view mount option is specified by setting the MS_RDONLY flag on the superblock. Additionally, this patch removes some broken logic in ecryptfs_open() that attempted to prevent modifications of files when the encrypted view feature was in use. The check in ecryptfs_open() was not sufficient to prevent file modifications using system calls that do not operate on a file descriptor. Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Priya Bansal <p.bansal@samsung.com> Cc: stable@vger.kernel.org # v2.6.21+: e77a56d [PATCH] eCryptfs: Encrypted passthrough
2014-10-07 15:51:55 -05:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
ecryptfs: Factor out mount option validation Under the new mount API, mount options are parsed one at a time. Any validation that examines multiple options must be done after parsing is complete, so factor out a ecryptfs_validate_options() which can be called separately. To facilitate this, temporarily move the local variables that tracked whether various options have been set in the parsing function, into the ecryptfs_mount_crypt_stat structure so that they can be examined later. These will be moved to a more ephemeral struct in the mount api conversion patch to follow. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-2-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:38 -05:00
ecryptfs: Fix spelling mistake "validationg" -> "validating" There is a spelling mistake in an error message literal string. Fix it. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Link: https://lore.kernel.org/r/20241108112509.109891-1-colin.i.king@gmail.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-11-08 11:25:09 +00:00
ecryptfs: Factor out mount option validation Under the new mount API, mount options are parsed one at a time. Any validation that examines multiple options must be done after parsing is complete, so factor out a ecryptfs_validate_options() which can be called separately. To facilitate this, temporarily move the local variables that tracked whether various options have been set in the parsing function, into the ecryptfs_mount_crypt_stat structure so that they can be examined later. These will be moved to a more ephemeral struct in the mount api conversion patch to follow. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-2-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:38 -05:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
ecryptfs: Use MD5 library instead of crypto_shash eCryptfs uses MD5 for a couple unusual purposes: to "mix" the key into the IVs for file contents encryption (similar to ESSIV), and to prepend some key-dependent bytes to the plaintext when encrypting filenames (which is useless since eCryptfs encrypts the filenames with ECB). Currently, eCryptfs computes these MD5 hashes using the crypto_shash API. Update it to instead use the MD5 library API. This is simpler and faster: the library doesn't require memory allocations, can't fail, and provides direct access to MD5 without overhead such as indirect calls. To preserve the existing behavior of eCryptfs support being disabled when the kernel is booted with "fips=1", make ecryptfs_get_tree() check fips_enabled itself. Previously it relied on crypto_alloc_shash("md5") failing. I don't know for sure that this is actually needed; e.g., it could be argued that eCryptfs's use of MD5 isn't for a security purpose as far as FIPS is concerned. But this preserves the existing behavior. Tested by verifying that an existing eCryptfs can still be mounted with a kernel that has this commit, with all the files matching. Also tested creating a filesystem with this commit and mounting+reading it without. Signed-off-by: Eric Biggers <ebiggers@kernel.org> Link: https://patch.msgid.link/20251011200010.193140-1-ebiggers@kernel.org Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-10-11 13:00:10 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
ecryptfs: Convert to separately allocated bdi Allocate struct backing_dev_info separately instead of embedding it inside the superblock. This unifies handling of bdi among users. CC: Tyler Hicks <tyhicks@canonical.com> CC: ecryptfs@vger.kernel.org Acked-by: Tyler Hicks <tyhicks@canonical.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-12 12:24:35 +02:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
ecryptfs: Switch to generic xattr handlers Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-29 17:48:36 +02:00
new helper: set_default_d_op() ... to be used instead of manually assigning to ->s_d_op. All in-tree filesystem converted (and field itself is renamed, so any out-of-tree ones in need of conversion will be caught by compiler). Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-02-23 19:39:47 -05:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
Ecryptfs: Add mount option to check uid of device being mounted = expect uid Close a TOCTOU race for mounts done via ecryptfs-mount-private. The mount source (device) can be raced when the ownership test is done in userspace. Provide Ecryptfs a means to force the uid check at mount time. Signed-off-by: John Johansen <john.johansen@canonical.com> Cc: <stable@kernel.org> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-07-22 08:14:15 -07:00
fs: add is_idmapped_mnt() helper Multiple places open-code the same check to determine whether a given mount is idmapped. Introduce a simple helper function that can be used instead. This allows us to get rid of the fragile open-coding. We will later change the check that is used to determine whether a given mount is idmapped. Introducing a helper allows us to do this in a single place instead of doing it for multiple places. Link: https://lore.kernel.org/r/20211123114227.3124056-2-brauner@kernel.org (v1) Link: https://lore.kernel.org/r/20211130121032.3753852-2-brauner@kernel.org (v2) Link: https://lore.kernel.org/r/20211203111707.3901969-2-brauner@kernel.org Cc: Seth Forshee <sforshee@digitalocean.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> CC: linux-fsdevel@vger.kernel.org Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Seth Forshee <sforshee@digitalocean.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2021-12-03 12:16:58 +01:00
ecryptfs: do not mount on top of idmapped mounts Prevent ecryptfs from being mounted on top of idmapped mounts. Stacking filesystems need to be prevented from being mounted on top of idmapped mounts until they have have been converted to handle this. Link: https://lore.kernel.org/r/20210121131959.646623-28-christian.brauner@ubuntu.com Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Reviewed-by: James Morris <jamorris@linux.microsoft.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2021-01-21 14:19:46 +01:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
ecryptfs: Factor out mount option validation Under the new mount API, mount options are parsed one at a time. Any validation that examines multiple options must be done after parsing is complete, so factor out a ecryptfs_validate_options() which can be called separately. To facilitate this, temporarily move the local variables that tracked whether various options have been set in the parsing function, into the ecryptfs_mount_crypt_stat structure so that they can be examined later. These will be moved to a more ephemeral struct in the mount api conversion patch to follow. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-2-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:38 -05:00
Ecryptfs: Add mount option to check uid of device being mounted = expect uid Close a TOCTOU race for mounts done via ecryptfs-mount-private. The mount source (device) can be raced when the ownership test is done in userspace. Provide Ecryptfs a means to force the uid check at mount time. Signed-off-by: John Johansen <john.johansen@canonical.com> Cc: <stable@kernel.org> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-07-22 08:14:15 -07:00
VFS: normal filesystems (and lustre): d_inode() annotations that's the bulk of filesystem drivers dealing with inodes of their own Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-17 22:25:59 +00:00
userns: Convert ecryptfs to use kuid/kgid where appropriate Cc: Tyler Hicks <tyhicks@canonical.com> Cc: Dustin Kirkland <dustin.kirkland@gazzang.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-02-07 16:24:33 -08:00
Ecryptfs: Add mount option to check uid of device being mounted = expect uid Close a TOCTOU race for mounts done via ecryptfs-mount-private. The mount source (device) can be raced when the ownership test is done in userspace. Provide Ecryptfs a means to force the uid check at mount time. Signed-off-by: John Johansen <john.johansen@canonical.com> Cc: <stable@kernel.org> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-07-22 08:14:15 -07:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
eCryptfs: Copy up POSIX ACL and read-only flags from lower mount When the eCryptfs mount options do not include '-o acl', but the lower filesystem's mount options do include 'acl', the MS_POSIXACL flag is not flipped on in the eCryptfs super block flags. This flag is what the VFS checks in do_last() when deciding if the current umask should be applied to a newly created inode's mode or not. When a default POSIX ACL mask is set on a directory, the current umask is incorrectly applied to new inodes created in the directory. This patch ignores the MS_POSIXACL flag passed into ecryptfs_mount() and sets the flag on the eCryptfs super block depending on the flag's presence on the lower super block. Additionally, it is incorrect to allow a writeable eCryptfs mount on top of a read-only lower mount. This missing check did not allow writes to the read-only lower mount because permissions checks are still performed on the lower filesystem's objects but it is best to simply not allow a rw mount on top of ro mount. However, a ro eCryptfs mount on top of a rw mount is valid and still allowed. https://launchpad.net/bugs/1009207 Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Stefan Beller <stefanbeller@googlemail.com> Cc: John Johansen <john.johansen@canonical.com>
2012-06-11 15:42:32 -07:00
eCryptfs: Force RO mount when encrypted view is enabled The ecryptfs_encrypted_view mount option greatly changes the functionality of an eCryptfs mount. Instead of encrypting and decrypting lower files, it provides a unified view of the encrypted files in the lower filesystem. The presence of the ecryptfs_encrypted_view mount option is intended to force a read-only mount and modifying files is not supported when the feature is in use. See the following commit for more information: e77a56d [PATCH] eCryptfs: Encrypted passthrough This patch forces the mount to be read-only when the ecryptfs_encrypted_view mount option is specified by setting the MS_RDONLY flag on the superblock. Additionally, this patch removes some broken logic in ecryptfs_open() that attempted to prevent modifications of files when the encrypted view feature was in use. The check in ecryptfs_open() was not sufficient to prevent file modifications using system calls that do not operate on a file descriptor. Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Priya Bansal <p.bansal@samsung.com> Cc: stable@vger.kernel.org # v2.6.21+: e77a56d [PATCH] eCryptfs: Encrypted passthrough
2014-10-07 15:51:55 -05:00
eCryptfs: Copy up POSIX ACL and read-only flags from lower mount When the eCryptfs mount options do not include '-o acl', but the lower filesystem's mount options do include 'acl', the MS_POSIXACL flag is not flipped on in the eCryptfs super block flags. This flag is what the VFS checks in do_last() when deciding if the current umask should be applied to a newly created inode's mode or not. When a default POSIX ACL mask is set on a directory, the current umask is incorrectly applied to new inodes created in the directory. This patch ignores the MS_POSIXACL flag passed into ecryptfs_mount() and sets the flag on the eCryptfs super block depending on the flag's presence on the lower super block. Additionally, it is incorrect to allow a writeable eCryptfs mount on top of a read-only lower mount. This missing check did not allow writes to the read-only lower mount because permissions checks are still performed on the lower filesystem's objects but it is best to simply not allow a rw mount on top of ro mount. However, a ro eCryptfs mount on top of a rw mount is valid and still allowed. https://launchpad.net/bugs/1009207 Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Stefan Beller <stefanbeller@googlemail.com> Cc: John Johansen <john.johansen@canonical.com>
2012-06-11 15:42:32 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
Rename superblock flags (MS_xyz -> SB_xyz) This is a pure automated search-and-replace of the internal kernel superblock flags. The s_flags are now called SB_*, with the names and the values for the moment mirroring the MS_* flags that they're equivalent to. Note how the MS_xyz flags are the ones passed to the mount system call, while the SB_xyz flags are what we then use in sb->s_flags. The script to do this was: # places to look in; re security/*: it generally should *not* be # touched (that stuff parses mount(2) arguments directly), but # there are two places where we really deal with superblock flags. FILES="drivers/mtd drivers/staging/lustre fs ipc mm \ include/linux/fs.h include/uapi/linux/bfs_fs.h \ security/apparmor/apparmorfs.c security/apparmor/include/lib.h" # the list of MS_... constants SYMS="RDONLY NOSUID NODEV NOEXEC SYNCHRONOUS REMOUNT MANDLOCK \ DIRSYNC NOATIME NODIRATIME BIND MOVE REC VERBOSE SILENT \ POSIXACL UNBINDABLE PRIVATE SLAVE SHARED RELATIME KERNMOUNT \ I_VERSION STRICTATIME LAZYTIME SUBMOUNT NOREMOTELOCK NOSEC BORN \ ACTIVE NOUSER" SED_PROG= for i in $SYMS; do SED_PROG="$SED_PROG -e s/MS_$i/SB_$i/g"; done # we want files that contain at least one of MS_..., # with fs/namespace.c and fs/pnode.c excluded. L=$(for i in $SYMS; do git grep -w -l MS_$i $FILES; done| sort|uniq|grep -v '^fs/namespace.c'|grep -v '^fs/pnode.c') for f in $L; do sed -i $f $SED_PROG; done Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-27 13:05:09 -08:00
eCryptfs: Force RO mount when encrypted view is enabled The ecryptfs_encrypted_view mount option greatly changes the functionality of an eCryptfs mount. Instead of encrypting and decrypting lower files, it provides a unified view of the encrypted files in the lower filesystem. The presence of the ecryptfs_encrypted_view mount option is intended to force a read-only mount and modifying files is not supported when the feature is in use. See the following commit for more information: e77a56d [PATCH] eCryptfs: Encrypted passthrough This patch forces the mount to be read-only when the ecryptfs_encrypted_view mount option is specified by setting the MS_RDONLY flag on the superblock. Additionally, this patch removes some broken logic in ecryptfs_open() that attempted to prevent modifications of files when the encrypted view feature was in use. The check in ecryptfs_open() was not sufficient to prevent file modifications using system calls that do not operate on a file descriptor. Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Priya Bansal <p.bansal@samsung.com> Cc: stable@vger.kernel.org # v2.6.21+: e77a56d [PATCH] eCryptfs: Encrypted passthrough
2014-10-07 15:51:55 -05:00
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb) Firstly by applying the following with coccinelle's spatch: @@ expression SB; @@ -SB->s_flags & MS_RDONLY +sb_rdonly(SB) to effect the conversion to sb_rdonly(sb), then by applying: @@ expression A, SB; @@ ( -(!sb_rdonly(SB)) && A +!sb_rdonly(SB) && A | -A != (sb_rdonly(SB)) +A != sb_rdonly(SB) | -A == (sb_rdonly(SB)) +A == sb_rdonly(SB) | -!(sb_rdonly(SB)) +!sb_rdonly(SB) | -A && (sb_rdonly(SB)) +A && sb_rdonly(SB) | -A || (sb_rdonly(SB)) +A || sb_rdonly(SB) | -(sb_rdonly(SB)) != A +sb_rdonly(SB) != A | -(sb_rdonly(SB)) == A +sb_rdonly(SB) == A | -(sb_rdonly(SB)) && A +sb_rdonly(SB) && A | -(sb_rdonly(SB)) || A +sb_rdonly(SB) || A ) @@ expression A, B, SB; @@ ( -(sb_rdonly(SB)) ? 1 : 0 +sb_rdonly(SB) | -(sb_rdonly(SB)) ? A : B +sb_rdonly(SB) ? A : B ) to remove left over excess bracketage and finally by applying: @@ expression A, SB; @@ ( -(A & MS_RDONLY) != sb_rdonly(SB) +(bool)(A & MS_RDONLY) != sb_rdonly(SB) | -(A & MS_RDONLY) == sb_rdonly(SB) +(bool)(A & MS_RDONLY) == sb_rdonly(SB) ) to make comparisons against the result of sb_rdonly() (which is a bool) work correctly. Signed-off-by: David Howells <dhowells@redhat.com>
2017-07-17 08:45:34 +01:00
Rename superblock flags (MS_xyz -> SB_xyz) This is a pure automated search-and-replace of the internal kernel superblock flags. The s_flags are now called SB_*, with the names and the values for the moment mirroring the MS_* flags that they're equivalent to. Note how the MS_xyz flags are the ones passed to the mount system call, while the SB_xyz flags are what we then use in sb->s_flags. The script to do this was: # places to look in; re security/*: it generally should *not* be # touched (that stuff parses mount(2) arguments directly), but # there are two places where we really deal with superblock flags. FILES="drivers/mtd drivers/staging/lustre fs ipc mm \ include/linux/fs.h include/uapi/linux/bfs_fs.h \ security/apparmor/apparmorfs.c security/apparmor/include/lib.h" # the list of MS_... constants SYMS="RDONLY NOSUID NODEV NOEXEC SYNCHRONOUS REMOUNT MANDLOCK \ DIRSYNC NOATIME NODIRATIME BIND MOVE REC VERBOSE SILENT \ POSIXACL UNBINDABLE PRIVATE SLAVE SHARED RELATIME KERNMOUNT \ I_VERSION STRICTATIME LAZYTIME SUBMOUNT NOREMOTELOCK NOSEC BORN \ ACTIVE NOUSER" SED_PROG= for i in $SYMS; do SED_PROG="$SED_PROG -e s/MS_$i/SB_$i/g"; done # we want files that contain at least one of MS_..., # with fs/namespace.c and fs/pnode.c excluded. L=$(for i in $SYMS; do git grep -w -l MS_$i $FILES; done| sort|uniq|grep -v '^fs/namespace.c'|grep -v '^fs/pnode.c') for f in $L; do sed -i $f $SED_PROG; done Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-27 13:05:09 -08:00
eCryptfs: Copy up POSIX ACL and read-only flags from lower mount When the eCryptfs mount options do not include '-o acl', but the lower filesystem's mount options do include 'acl', the MS_POSIXACL flag is not flipped on in the eCryptfs super block flags. This flag is what the VFS checks in do_last() when deciding if the current umask should be applied to a newly created inode's mode or not. When a default POSIX ACL mask is set on a directory, the current umask is incorrectly applied to new inodes created in the directory. This patch ignores the MS_POSIXACL flag passed into ecryptfs_mount() and sets the flag on the eCryptfs super block depending on the flag's presence on the lower super block. Additionally, it is incorrect to allow a writeable eCryptfs mount on top of a read-only lower mount. This missing check did not allow writes to the read-only lower mount because permissions checks are still performed on the lower filesystem's objects but it is best to simply not allow a rw mount on top of ro mount. However, a ro eCryptfs mount on top of a rw mount is valid and still allowed. https://launchpad.net/bugs/1009207 Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Stefan Beller <stefanbeller@googlemail.com> Cc: John Johansen <john.johansen@canonical.com>
2012-06-11 15:42:32 -07:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
ecryptfs: missing initialization of the superblock 'magic' field This patch initializes the 'magic' field of ecryptfs filesystems to ECRYPTFS_SUPER_MAGIC. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> [tyhicks: merge with 66cb76666d69] Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-11-03 11:11:22 +01:00
fs: limit filesystem stacking depth Add a simple read-only counter to super_block that indicates how deep this is in the stack of filesystems. Previously ecryptfs was the only stackable filesystem and it explicitly disallowed multiple layers of itself. Overlayfs, however, can be stacked recursively and also may be stacked on top of ecryptfs or vice versa. To limit the kernel stack usage we must limit the depth of the filesystem stack. Initially the limit is set to 2. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2014-10-24 00:14:39 +02:00
ecryptfs: Set s_time_gran to get correct time granularity Set the eCryptfs superblock time granularity, using the lower filesystem's s_time_gran value, to prevent unnecessary inode timestamp truncation to the granularity of a full second. The use of utimensat(2) to set a timestamp with nanosecond precision would trigger this bug. That occurred when using the following utilities to update timestamps of a file: * cp -p: copy a file and preserve its atime and mtime * touch -r: touch a file and use a reference file's timestamps Closes: https://bugs.launchpad.net/ecryptfs/+bug/1890486 Signed-off-by: Frank Hsiao 蕭法宣 <frankhsiao@qnap.com> [tyhicks: Partially rewrite the commit message] Signed-off-by: Tyler Hicks <code@tyhicks.com>
2024-05-17 10:09:55 +00:00
fs: limit filesystem stacking depth Add a simple read-only counter to super_block that indicates how deep this is in the stack of filesystems. Previously ecryptfs was the only stackable filesystem and it explicitly disallowed multiple layers of itself. Overlayfs, however, can be stacked recursively and also may be stacked on top of ecryptfs or vice versa. To limit the kernel stack usage we must limit the depth of the filesystem stack. Initially the limit is set to 2. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2014-10-24 00:14:39 +02:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
VFS: normal filesystems (and lustre): d_inode() annotations that's the bulk of filesystem drivers dealing with inodes of their own Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-17 22:25:59 +00:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
switch open-coded instances of d_make_root() to new helper Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-08 22:15:13 -05:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
ecryptfs: get rid of pointless mount references in ecryptfs dentries ->lower_path.mnt has the same value for all dentries on given ecryptfs instance and if somebody goes for mountpoint-crossing variant where that would not be true, we can deal with that when it happens (and _not_ with duplicating these reference into each dentry). As it is, we are better off just sticking a reference into ecryptfs-private part of superblock and keeping it pinned until ->kill_sb(). That way we can stick a reference to underlying dentry right into ->d_fsdata of ecryptfs one, getting rid of indirection through struct ecryptfs_dentry_info, along with the entire struct ecryptfs_dentry_info machinery. [kudos to Dan Carpenter for spotting a bug in ecryptfs_get_tree() part] Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-07-24 22:45:09 -04:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
Rename superblock flags (MS_xyz -> SB_xyz) This is a pure automated search-and-replace of the internal kernel superblock flags. The s_flags are now called SB_*, with the names and the values for the moment mirroring the MS_* flags that they're equivalent to. Note how the MS_xyz flags are the ones passed to the mount system call, while the SB_xyz flags are what we then use in sb->s_flags. The script to do this was: # places to look in; re security/*: it generally should *not* be # touched (that stuff parses mount(2) arguments directly), but # there are two places where we really deal with superblock flags. FILES="drivers/mtd drivers/staging/lustre fs ipc mm \ include/linux/fs.h include/uapi/linux/bfs_fs.h \ security/apparmor/apparmorfs.c security/apparmor/include/lib.h" # the list of MS_... constants SYMS="RDONLY NOSUID NODEV NOEXEC SYNCHRONOUS REMOUNT MANDLOCK \ DIRSYNC NOATIME NODIRATIME BIND MOVE REC VERBOSE SILENT \ POSIXACL UNBINDABLE PRIVATE SLAVE SHARED RELATIME KERNMOUNT \ I_VERSION STRICTATIME LAZYTIME SUBMOUNT NOREMOTELOCK NOSEC BORN \ ACTIVE NOUSER" SED_PROG= for i in $SYMS; do SED_PROG="$SED_PROG -e s/MS_$i/SB_$i/g"; done # we want files that contain at least one of MS_..., # with fs/namespace.c and fs/pnode.c excluded. L=$(for i in $SYMS; do git grep -w -l MS_$i $FILES; done| sort|uniq|grep -v '^fs/namespace.c'|grep -v '^fs/pnode.c') for f in $L; do sed -i $f $SED_PROG; done Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-27 13:05:09 -08:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
sanitize ecryptfs ->mount() kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12 20:04:37 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
Clean ecryptfs ->get_sb() up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-21 12:24:29 -04:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
fix a couple of ecryptfs leaks First of all, get_sb_nodev() grabs anon dev minor and we never free it in ecryptfs ->kill_sb(). Moreover, on one of the failure exits in ecryptfs_get_sb() we leak things - it happens before we set ->s_root and ->put_super() won't be called in that case. Solution: kill ->put_super(), do all that stuff in ->kill_sb(). And use kill_anon_sb() instead of generic_shutdown_super() to deal with anon dev leak. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-20 22:32:26 -04:00
ecryptfs: get rid of pointless mount references in ecryptfs dentries ->lower_path.mnt has the same value for all dentries on given ecryptfs instance and if somebody goes for mountpoint-crossing variant where that would not be true, we can deal with that when it happens (and _not_ with duplicating these reference into each dentry). As it is, we are better off just sticking a reference into ecryptfs-private part of superblock and keeping it pinned until ->kill_sb(). That way we can stick a reference to underlying dentry right into ->d_fsdata of ecryptfs one, getting rid of indirection through struct ecryptfs_dentry_info, along with the entire struct ecryptfs_dentry_info machinery. [kudos to Dan Carpenter for spotting a bug in ecryptfs_get_tree() part] Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-07-24 22:45:09 -04:00
fix a couple of ecryptfs leaks First of all, get_sb_nodev() grabs anon dev minor and we never free it in ecryptfs ->kill_sb(). Moreover, on one of the failure exits in ecryptfs_get_sb() we leak things - it happens before we set ->s_root and ->put_super() won't be called in that case. Solution: kill ->put_super(), do all that stuff in ->kill_sb(). And use kill_anon_sb() instead of generic_shutdown_super() to deal with anon dev leak. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-20 22:32:26 -04:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument This was done entirely with mindless brute force, using git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' | xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/' to convert the new alloc_obj() users that had a simple GFP_KERNEL argument to just drop that argument. Note that due to the extreme simplicity of the scripting, any slightly more complex cases spread over multiple lines would not be triggered: they definitely exist, but this covers the vast bulk of the cases, and the resulting diff is also then easier to check automatically. For the same reason the 'flex' versions will be done as a separate conversion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 16:37:42 -08:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: Convert ecryptfs to use the new mount API Convert ecryptfs to the new mount API. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20241028143359.605061-3-sandeen@redhat.com Acked-by: Tyler Hicks <code@tyhicks.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-28 09:32:39 -05:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
fs: Limit sys_mount to only request filesystem modules. Modify the request_module to prefix the file system type with "fs-" and add aliases to all of the filesystems that can be built as modules to match. A common practice is to build all of the kernel code and leave code that is not commonly needed as modules, with the result that many users are exposed to any bug anywhere in the kernel. Looking for filesystems with a fs- prefix limits the pool of possible modules that can be loaded by mount to just filesystems trivially making things safer with no real cost. Using aliases means user space can control the policy of which filesystem modules are auto-loaded by editing /etc/modprobe.d/*.conf with blacklist and alias directives. Allowing simple, safe, well understood work-arounds to known problematic software. This also addresses a rare but unfortunate problem where the filesystem name is not the same as it's module name and module auto-loading would not work. While writing this patch I saw a handful of such cases. The most significant being autofs that lives in the module autofs4. This is relevant to user namespaces because we can reach the request module in get_fs_type() without having any special permissions, and people get uncomfortable when a user specified string (in this case the filesystem type) goes all of the way to request_module. After having looked at this issue I don't think there is any particular reason to perform any filtering or permission checks beyond making it clear in the module request that we want a filesystem module. The common pattern in the kernel is to call request_module() without regards to the users permissions. In general all a filesystem module does once loaded is call register_filesystem() and go to sleep. Which means there is not much attack surface exposed by loading a filesytem module unless the filesystem is mounted. In a user namespace filesystems are not mounted unless .fs_flags = FS_USERNS_MOUNT, which most filesystems do not set today. Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Acked-by: Kees Cook <keescook@chromium.org> Reported-by: Kees Cook <keescook@google.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-03-02 19:39:14 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: main: Demote a bunch of non-conformant kernel-doc headers Fixes the following W=1 kernel build warning(s): fs/ecryptfs/main.c:28: warning: Incorrect use of kernel-doc format: * Module parameter that defines the ecryptfs_verbosity level. fs/ecryptfs/main.c:30: warning: cannot understand function prototype: 'int ecryptfs_verbosity = 0; ' fs/ecryptfs/main.c:40: warning: cannot understand function prototype: 'unsigned int ecryptfs_message_buf_len = ECRYPTFS_DEFAULT_MSG_CTX_ELEMS; ' fs/ecryptfs/main.c:52: warning: cannot understand function prototype: 'signed long ecryptfs_message_wait_timeout = ECRYPTFS_MAX_MSG_CTX_TTL / HZ; ' fs/ecryptfs/main.c:65: warning: cannot understand function prototype: 'unsigned int ecryptfs_number_of_users = ECRYPTFS_DEFAULT_NUM_USERS; ' fs/ecryptfs/main.c:106: warning: Function parameter or member 'dentry' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Function parameter or member 'lower_file' not described in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:106: warning: Excess function parameter 'ecryptfs_dentry' description in 'ecryptfs_init_lower_file' fs/ecryptfs/main.c:244: warning: Function parameter or member 'sbi' not described in 'ecryptfs_parse_options' fs/ecryptfs/main.c:244: warning: Excess function parameter 'sb' description in 'ecryptfs_parse_options' fs/ecryptfs/main.c:478: warning: Function parameter or member 'fs_type' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: Function parameter or member 'flags' not described in 'ecryptfs_mount' fs/ecryptfs/main.c:478: warning: expecting prototype for ecryptfs_get_sb(). Prototype was for ecryptfs_mount() instead fs/ecryptfs/main.c:645: warning: Function parameter or member 'vptr' not described in 'inode_info_init_once' Cc: Tyler Hicks <code@tyhicks.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: James Morris <jamorris@linux.microsoft.com> Cc: "Michael A. Halcrow" <mahalcro@us.ibm.com> Cc: "Michael C. Thompson" <mcthomps@us.ibm.com> Cc: ecryptfs@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> [tyhicks: Correct the function documentation for ecryptfs_mount()] Signed-off-by: Tyler Hicks <code@tyhicks.com>
2021-03-30 17:44:53 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
SL*B: drop kmem cache argument from constructor Kmem cache passed to constructor is only needed for constructors that are themselves multiplexeres. Nobody uses this "feature", nor does anybody uses passed kmem cache in non-trivial way, so pass only pointer to object. Non-trivial places are: arch/powerpc/mm/init_64.c arch/powerpc/mm/hugetlbpage.c This is flag day, yes. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Christoph Lameter <cl@linux-foundation.org> Cc: Jon Tollefson <kniht@linux.vnet.ibm.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Matt Mackall <mpm@selenic.com> [akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c] [akpm@linux-foundation.org: fix mm/slab.c] [akpm@linux-foundation.org: fix ubifs] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25 19:45:34 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
Remove SLAB_CTOR_CONSTRUCTOR SLAB_CTOR_CONSTRUCTOR is always specified. No point in checking it. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: David Howells <dhowells@redhat.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Steven French <sfrench@us.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Anton Altaparmakov <aia21@cantab.net> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@ucw.cz> Cc: David Chinner <dgc@sgi.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>
2007-05-16 22:10:57 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
[PATCH] slab: remove kmem_cache_t Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-06 20:33:20 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
slab, slub, slob: add slab_flags_t Add sparse-checked slab_flags_t for struct kmem_cache::flags (SLAB_POISON, etc). SLAB is bloated temporarily by switching to "unsigned long", but only temporarily. Link: http://lkml.kernel.org/r/20171021100225.GA22428@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-15 17:32:18 -08:00
SL*B: drop kmem cache argument from constructor Kmem cache passed to constructor is only needed for constructors that are themselves multiplexeres. Nobody uses this "feature", nor does anybody uses passed kmem cache in non-trivial way, so pass only pointer to object. Non-trivial places are: arch/powerpc/mm/init_64.c arch/powerpc/mm/hugetlbpage.c This is flag day, yes. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Christoph Lameter <cl@linux-foundation.org> Cc: Jon Tollefson <kniht@linux.vnet.ibm.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Matt Mackall <mpm@selenic.com> [akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c] [akpm@linux-foundation.org: fix mm/slab.c] [akpm@linux-foundation.org: fix ubifs] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25 19:45:34 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
kmemcg: account certain kmem allocations to memcg Mark those kmem allocations that are known to be easily triggered from userspace as __GFP_ACCOUNT/SLAB_ACCOUNT, which makes them accounted to memcg. For the list, see below: - threadinfo - task_struct - task_delay_info - pid - cred - mm_struct - vm_area_struct and vm_region (nommu) - anon_vma and anon_vma_chain - signal_struct - sighand_struct - fs_struct - files_struct - fdtable and fdtable->full_fds_bits - dentry and external_name - inode for all filesystems. This is the most tedious part, because most filesystems overwrite the alloc_inode method. The list is far from complete, so feel free to add more objects. Nevertheless, it should be close to "account everything" approach and keep most workloads within bounds. Malevolent users will be able to breach the limit, but this was possible even with the former "account everything" approach (simply because it did not account everything in fact). [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Tejun Heo <tj@kernel.org> Cc: Greg Thelen <gthelen@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-14 15:18:21 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: Remove ecryptfs_header_cache_2 Now that ecryptfs_lookup_interpose() is no longer using ecryptfs_header_cache_2 to read in metadata, the kmem_cache can be removed and the ecryptfs_header_cache_1 kmem_cache can be renamed to ecryptfs_header_cache. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-05-24 05:11:12 -05:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago with promise that one day it will be possible to implement page cache with bigger chunks than PAGE_SIZE. This promise never materialized. And unlikely will. We have many places where PAGE_CACHE_SIZE assumed to be equal to PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_* or PAGE_* constant should be used in a particular case, especially on the border between fs and mm. Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much breakage to be doable. Let's stop pretending that pages in page cache are special. They are not. The changes are pretty straight-forward: - <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - <foo> >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN}; - page_cache_get() -> get_page(); - page_cache_release() -> put_page(); This patch contains automated changes generated with coccinelle using script below. For some reason, coccinelle doesn't patch header files. I've called spatch for them manually. The only adjustment after coccinelle is revert of changes to PAGE_CAHCE_ALIGN definition: we are going to drop it later. There are few places in the code where coccinelle didn't reach. I'll fix them manually in a separate patch. Comments and documentation also will be addressed with the separate patch. virtual patch @@ expression E; @@ - E << (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ expression E; @@ - E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ @@ - PAGE_CACHE_SHIFT + PAGE_SHIFT @@ @@ - PAGE_CACHE_SIZE + PAGE_SIZE @@ @@ - PAGE_CACHE_MASK + PAGE_MASK @@ expression E; @@ - PAGE_CACHE_ALIGN(E) + PAGE_ALIGN(E) @@ expression E; @@ - page_cache_get(E) + get_page(E) @@ expression E; @@ - page_cache_release(E) + put_page(E) Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-01 15:29:47 +03:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
[PATCH] eCryptfs: Generalize metadata read/write Generalize the metadata reading and writing mechanisms, with two targets for now: metadata in file header and metadata in the user.ecryptfs xattr of the lower file. [akpm@osdl.org: printk warning fix] [bunk@stusta.de: make some needlessly global code static] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:46 -08:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago with promise that one day it will be possible to implement page cache with bigger chunks than PAGE_SIZE. This promise never materialized. And unlikely will. We have many places where PAGE_CACHE_SIZE assumed to be equal to PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_* or PAGE_* constant should be used in a particular case, especially on the border between fs and mm. Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much breakage to be doable. Let's stop pretending that pages in page cache are special. They are not. The changes are pretty straight-forward: - <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - <foo> >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN}; - page_cache_get() -> get_page(); - page_cache_release() -> put_page(); This patch contains automated changes generated with coccinelle using script below. For some reason, coccinelle doesn't patch header files. I've called spatch for them manually. The only adjustment after coccinelle is revert of changes to PAGE_CAHCE_ALIGN definition: we are going to drop it later. There are few places in the code where coccinelle didn't reach. I'll fix them manually in a separate patch. Comments and documentation also will be addressed with the separate patch. virtual patch @@ expression E; @@ - E << (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ expression E; @@ - E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ @@ - PAGE_CACHE_SHIFT + PAGE_SHIFT @@ @@ - PAGE_CACHE_SIZE + PAGE_SIZE @@ @@ - PAGE_CACHE_MASK + PAGE_MASK @@ expression E; @@ - PAGE_CACHE_ALIGN(E) + PAGE_ALIGN(E) @@ expression E; @@ - page_cache_get(E) + get_page(E) @@ expression E; @@ - page_cache_release(E) + put_page(E) Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-01 15:29:47 +03:00
[PATCH] eCryptfs: Generalize metadata read/write Generalize the metadata reading and writing mechanisms, with two targets for now: metadata in file header and metadata in the user.ecryptfs xattr of the lower file. [akpm@osdl.org: printk warning fix] [bunk@stusta.de: make some needlessly global code static] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:46 -08:00
[PATCH] eCryptfs: Reduce stack usage in ecryptfs_generate_key_packet_set() eCryptfs is gobbling a lot of stack in ecryptfs_generate_key_packet_set() because it allocates a temporary memory-hungry ecryptfs_key_record struct. This patch introduces a new kmem_cache for that struct and converts ecryptfs_generate_key_packet_set() to use it. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-16 01:28:40 -08:00
eCryptfs: kmem_cache objects for multiple keys; init/exit functions Introduce kmem_cache objects for handling multiple keys per inode. Add calls in the module init and exit code to call the key list initialization/destruction functions. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:55 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
fs: push rcu_barrier() from deactivate_locked_super() to filesystems There's no reason to call rcu_barrier() on every deactivate_locked_super(). We only need to make sure that all delayed rcu free inodes are flushed before we destroy related cache. Removing rcu_barrier() from deactivate_locked_super() affects some fast paths. E.g. on my machine exit_group() of a last process in IPC namespace takes 0.07538s. rcu_barrier() takes 0.05188s of that time. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-26 11:33:07 +10:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: drop null test before destroy functions Remove unneeded NULL test. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x; @@ -if (x != NULL) \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
2015-09-13 14:15:21 +02:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
kmemcg: account certain kmem allocations to memcg Mark those kmem allocations that are known to be easily triggered from userspace as __GFP_ACCOUNT/SLAB_ACCOUNT, which makes them accounted to memcg. For the list, see below: - threadinfo - task_struct - task_delay_info - pid - cred - mm_struct - vm_area_struct and vm_region (nommu) - anon_vma and anon_vma_chain - signal_struct - sighand_struct - fs_struct - files_struct - fdtable and fdtable->full_fds_bits - dentry and external_name - inode for all filesystems. This is the most tedious part, because most filesystems overwrite the alloc_inode method. The list is far from complete, so feel free to add more objects. Nevertheless, it should be close to "account everything" approach and keep most workloads within bounds. Malevolent users will be able to breach the limit, but this was possible even with the former "account everything" approach (simply because it did not account everything in fact). [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Tejun Heo <tj@kernel.org> Cc: Greg Thelen <gthelen@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-14 15:18:21 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
kobject: convert ecryptfs to use kobject_create Using a kset for this trivial directory is an overkill. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Mike Halcrow <mhalcrow@us.ibm.com> Cc: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-06 15:08:08 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
Driver Core: switch all dynamic ksets to kobj_sysfs_ops Switch all dynamically created ksets, that export simple attributes, to kobj_attribute from subsys_attribute. Struct subsys_attribute will be removed. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Mike Halcrow <mhalcrow@us.ibm.com> Cc: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-02 13:47:53 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
fs/ecryptfs: replace snprintf with sysfs_emit in show function Use sysfs_emit() instead of snprintf() in version_show() function to follow the preferred kernel API. Signed-off-by: Ankit Chauhan <ankitchauhan2065@gmail.com> Link: https://lore.kernel.org/20250619031536.19352-1-ankitchauhan2065@gmail.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-06-19 08:45:36 +05:30
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
Driver Core: switch all dynamic ksets to kobj_sysfs_ops Switch all dynamically created ksets, that export simple attributes, to kobj_attribute from subsys_attribute. Struct subsys_attribute will be removed. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Mike Halcrow <mhalcrow@us.ibm.com> Cc: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-02 13:47:53 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: clean up attribute mess It isn't that hard to add simple kset attributes, so don't go through all the gyrations of creating your own object type and show and store functions. Just use the functions that are already present. This makes things much simpler. Note, the version_str string violates the "one value per file" rule for sysfs. I suggest changing this now (individual files per type supported is one suggested way.) Cc: Michael A. Halcrow <mahalcro@us.ibm.com> Cc: Michael C. Thompson <mcthomps@us.ibm.com> Cc: Tyler Hicks <tyhicks@ou.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-15 15:01:24 -07:00
eCryptfs: constify attribute_group structures. attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 6122 636 24 6782 1a7e fs/ecryptfs/main.o File size After adding 'const': text data bss dec hex filename 6186 604 24 6814 1a9e fs/ecryptfs/main.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
2017-06-30 15:03:23 +05:30
ecryptfs: clean up attribute mess It isn't that hard to add simple kset attributes, so don't go through all the gyrations of creating your own object type and show and store functions. Just use the functions that are already present. This makes things much simpler. Note, the version_str string violates the "one value per file" rule for sysfs. I suggest changing this now (individual files per type supported is one suggested way.) Cc: Michael A. Halcrow <mahalcro@us.ibm.com> Cc: Michael C. Thompson <mcthomps@us.ibm.com> Cc: Tyler Hicks <tyhicks@ou.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-15 15:01:24 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
kobject: convert ecryptfs to use kobject_create Using a kset for this trivial directory is an overkill. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Mike Halcrow <mhalcrow@us.ibm.com> Cc: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-06 15:08:08 -08:00
kset: convert ecryptfs to use kset_create Dynamically create the kset instead of declaring it statically. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Mike Halcrow <mhalcrow@us.ibm.com> Cc: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-29 20:13:17 +01:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
kobject: convert ecryptfs to use kobject_create Using a kset for this trivial directory is an overkill. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Mike Halcrow <mhalcrow@us.ibm.com> Cc: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-06 15:08:08 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: clean up attribute mess It isn't that hard to add simple kset attributes, so don't go through all the gyrations of creating your own object type and show and store functions. Just use the functions that are already present. This makes things much simpler. Note, the version_str string violates the "one value per file" rule for sysfs. I suggest changing this now (individual files per type supported is one suggested way.) Cc: Michael A. Halcrow <mahalcro@us.ibm.com> Cc: Michael C. Thompson <mcthomps@us.ibm.com> Cc: Tyler Hicks <tyhicks@ou.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-15 15:01:24 -07:00
Kobject: convert fs/* from kobject_unregister() to kobject_put() There is no need for kobject_unregister() anymore, thanks to Kay's kobject cleanup changes, so replace all instances of it with kobject_put(). Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-12-20 08:13:05 -08:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: fix error handling in ecryptfs_init ecryptfs_init() exits without doing any cleanup jobs if ecryptfs_init_messaging() fails. In that case, eCryptfs leaves sysfs entries, leaks memory, and causes an invalid page fault. This patch fixes the problem. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-10 13:00:56 -07:00
kobject: convert ecryptfs to use kobject_create Using a kset for this trivial directory is an overkill. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Mike Halcrow <mhalcrow@us.ibm.com> Cc: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-06 15:08:08 -08:00
Kobject: convert fs/* from kobject_unregister() to kobject_put() There is no need for kobject_unregister() anymore, thanks to Kay's kobject cleanup changes, so replace all instances of it with kobject_put(). Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-12-20 08:13:05 -08:00
eCryptfs: fix error handling in ecryptfs_init ecryptfs_init() exits without doing any cleanup jobs if ecryptfs_init_messaging() fails. In that case, eCryptfs leaves sysfs entries, leaks memory, and causes an invalid page fault. This patch fixes the problem. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-10 13:00:56 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago with promise that one day it will be possible to implement page cache with bigger chunks than PAGE_SIZE. This promise never materialized. And unlikely will. We have many places where PAGE_CACHE_SIZE assumed to be equal to PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_* or PAGE_* constant should be used in a particular case, especially on the border between fs and mm. Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much breakage to be doable. Let's stop pretending that pages in page cache are special. They are not. The changes are pretty straight-forward: - <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - <foo> >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN}; - page_cache_get() -> get_page(); - page_cache_release() -> put_page(); This patch contains automated changes generated with coccinelle using script below. For some reason, coccinelle doesn't patch header files. I've called spatch for them manually. The only adjustment after coccinelle is revert of changes to PAGE_CAHCE_ALIGN definition: we are going to drop it later. There are few places in the code where coccinelle didn't reach. I'll fix them manually in a separate patch. Comments and documentation also will be addressed with the separate patch. virtual patch @@ expression E; @@ - E << (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ expression E; @@ - E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ @@ - PAGE_CACHE_SHIFT + PAGE_SHIFT @@ @@ - PAGE_CACHE_SIZE + PAGE_SIZE @@ @@ - PAGE_CACHE_MASK + PAGE_MASK @@ expression E; @@ - PAGE_CACHE_ALIGN(E) + PAGE_ALIGN(E) @@ expression E; @@ - page_cache_get(E) + get_page(E) @@ expression E; @@ - page_cache_release(E) + put_page(E) Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-01 15:29:47 +03:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
fs/ecryptfs: Add printf format/argument verification and fix fallout Add __attribute__((format... to __ecryptfs_printk Make formats and arguments match. Add casts to (unsigned long long) for %llu. Signed-off-by: Joe Perches <joe@perches.com> [tyhicks: 80 columns cleanup and fixed typo] Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-11-10 15:46:16 -08:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago with promise that one day it will be possible to implement page cache with bigger chunks than PAGE_SIZE. This promise never materialized. And unlikely will. We have many places where PAGE_CACHE_SIZE assumed to be equal to PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_* or PAGE_* constant should be used in a particular case, especially on the border between fs and mm. Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much breakage to be doable. Let's stop pretending that pages in page cache are special. They are not. The changes are pretty straight-forward: - <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - <foo> >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN}; - page_cache_get() -> get_page(); - page_cache_release() -> put_page(); This patch contains automated changes generated with coccinelle using script below. For some reason, coccinelle doesn't patch header files. I've called spatch for them manually. The only adjustment after coccinelle is revert of changes to PAGE_CAHCE_ALIGN definition: we are going to drop it later. There are few places in the code where coccinelle didn't reach. I'll fix them manually in a separate patch. Comments and documentation also will be addressed with the separate patch. virtual patch @@ expression E; @@ - E << (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ expression E; @@ - E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ @@ - PAGE_CACHE_SHIFT + PAGE_SHIFT @@ @@ - PAGE_CACHE_SIZE + PAGE_SIZE @@ @@ - PAGE_CACHE_MASK + PAGE_MASK @@ expression E; @@ - PAGE_CACHE_ALIGN(E) + PAGE_ALIGN(E) @@ expression E; @@ - page_cache_get(E) + get_page(E) @@ expression E; @@ - page_cache_release(E) + put_page(E) Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-01 15:29:47 +03:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: make register_filesystem() the last potential failure exit Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-03-17 21:29:13 -04:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
eCryptfs: Privileged kthread for lower file opens eCryptfs would really like to have read-write access to all files in the lower filesystem. Right now, the persistent lower file may be opened read-only if the attempt to open it read-write fails. One way to keep from having to do that is to have a privileged kthread that can open the lower persistent file on behalf of the user opening the eCryptfs file; this patch implements this functionality. This patch will properly allow a less-privileged user to open the eCryptfs file, followed by a more-privileged user opening the eCryptfs file, with the first user only being able to read and the second user being able to both read and write. eCryptfs currently does this wrong; it will wind up calling vfs_write() on a file that was opened read-only. This is fixed in this patch. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:30:02 -07:00
eCryptfs: remove netlink transport The netlink transport code has not worked for a while and the miscdev transport is a simpler solution. This patch removes the netlink code and makes the miscdev transport the only eCryptfs kernel to userspace transport. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15 22:02:51 -07:00
[PATCH] eCryptfs: Public key; packet management Public key support code. This reads and writes packets in the header that contain public key encrypted file keys. It calls the messaging code in the previous patch to send and receive encryption and decryption request packets from the userspace daemon. [akpm@osdl.org: cleab fix] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:44 -08:00
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-30 22:57:33 -03:00
eCryptfs: remove netlink transport The netlink transport code has not worked for a while and the miscdev transport is a simpler solution. This patch removes the netlink code and makes the miscdev transport the only eCryptfs kernel to userspace transport. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15 22:02:51 -07:00
eCryptfs: Privileged kthread for lower file opens eCryptfs would really like to have read-write access to all files in the lower filesystem. Right now, the persistent lower file may be opened read-only if the attempt to open it read-write fails. One way to keep from having to do that is to have a privileged kthread that can open the lower persistent file on behalf of the user opening the eCryptfs file; this patch implements this functionality. This patch will properly allow a less-privileged user to open the eCryptfs file, followed by a more-privileged user opening the eCryptfs file, with the first user only being able to read and the second user being able to both read and write. eCryptfs currently does this wrong; it will wind up calling vfs_write() on a file that was opened read-only. This is fixed in this patch. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:30:02 -07:00
eCryptfs: kmem_cache objects for multiple keys; init/exit functions Introduce kmem_cache objects for handling multiple keys per inode. Add calls in the module init and exit code to call the key list initialization/destruction functions. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:27:55 -07:00
ecryptfs: fix error handling The error paths and the module exit code need work. sysfs unregistration is not the right place to tear down the crypto subsystem, and the code to undo subsystem initializations on various error paths is unnecessarily duplicated. This patch addresses those issues. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:07 -07:00
[PATCH] eCryptfs: Public key; packet management Public key support code. This reads and writes packets in the header that contain public key encrypted file keys. It calls the messaging code in the previous patch to send and receive encryption and decryption request packets from the userspace daemon. [akpm@osdl.org: cleab fix] Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:53:44 -08:00
ecryptfs: make register_filesystem() the last potential failure exit Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-03-17 21:29:13 -04:00
ecryptfs: remove debug as mount option, and warn if set via modprobe ecryptfs_debug really should not be a mount option; it is not per-mount, but rather sets a global "ecryptfs_verbosity" variable which affects all mounted filesysytems. It's already settable as a module load option, I think we can leave it at that. Also, if set, since secret values come out in debug messages, kick things off with a stern warning. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Acked-by: Mike Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 01:38:34 -08:00
ecryptfs: fix error handling The error paths and the module exit code need work. sysfs unregistration is not the right place to tear down the crypto subsystem, and the code to undo subsystem initializations on various error paths is unnecessarily duplicated. This patch addresses those issues. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:07 -07:00
ecryptfs: make register_filesystem() the last potential failure exit Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-03-17 21:29:13 -04:00
ecryptfs: fix error handling The error paths and the module exit code need work. sysfs unregistration is not the right place to tear down the crypto subsystem, and the code to undo subsystem initializations on various error paths is unnecessarily duplicated. This patch addresses those issues. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:07 -07:00
eCryptfs: remove netlink transport The netlink transport code has not worked for a while and the miscdev transport is a simpler solution. This patch removes the netlink code and makes the miscdev transport the only eCryptfs kernel to userspace transport. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15 22:02:51 -07:00
eCryptfs: Privileged kthread for lower file opens eCryptfs would really like to have read-write access to all files in the lower filesystem. Right now, the persistent lower file may be opened read-only if the attempt to open it read-write fails. One way to keep from having to do that is to have a privileged kthread that can open the lower persistent file on behalf of the user opening the eCryptfs file; this patch implements this functionality. This patch will properly allow a less-privileged user to open the eCryptfs file, followed by a more-privileged user opening the eCryptfs file, with the first user only being able to read and the second user being able to both read and write. eCryptfs currently does this wrong; it will wind up calling vfs_write() on a file that was opened read-only. This is fixed in this patch. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:30:02 -07:00
ecryptfs: fix error handling The error paths and the module exit code need work. sysfs unregistration is not the right place to tear down the crypto subsystem, and the code to undo subsystem initializations on various error paths is unnecessarily duplicated. This patch addresses those issues. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:07 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00
ecryptfs: fix error handling The error paths and the module exit code need work. sysfs unregistration is not the right place to tear down the crypto subsystem, and the code to undo subsystem initializations on various error paths is unnecessarily duplicated. This patch addresses those issues. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:07 -07:00
eCryptfs: remove netlink transport The netlink transport code has not worked for a while and the miscdev transport is a simpler solution. This patch removes the netlink code and makes the miscdev transport the only eCryptfs kernel to userspace transport. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-15 22:02:51 -07:00
eCryptfs: Privileged kthread for lower file opens eCryptfs would really like to have read-write access to all files in the lower filesystem. Right now, the persistent lower file may be opened read-only if the attempt to open it read-write fails. One way to keep from having to do that is to have a privileged kthread that can open the lower persistent file on behalf of the user opening the eCryptfs file; this patch implements this functionality. This patch will properly allow a less-privileged user to open the eCryptfs file, followed by a more-privileged user opening the eCryptfs file, with the first user only being able to read and the second user being able to both read and write. eCryptfs currently does this wrong; it will wind up calling vfs_write() on a file that was opened read-only. This is fixed in this patch. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-23 21:30:02 -07:00
ecryptfs: fix error handling The error paths and the module exit code need work. sysfs unregistration is not the right place to tear down the crypto subsystem, and the code to undo subsystem initializations on various error paths is unnecessarily duplicated. This patch addresses those issues. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 01:28:07 -07:00
[PATCH] ecryptfs: fs/Makefile and fs/Kconfig eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 02:16:22 -07:00