Commit Graph

34 Commits

Author SHA1 Message Date
Eric W. Biederman 5f3a4a28ec userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr
- Pass the user namespace the uid and gid values in the xattr are stored
   in into posix_acl_from_xattr.

 - Pass the user namespace kuid and kgid values should be converted into
   when storing uid and gid values in an xattr in posix_acl_to_xattr.

- Modify all callers of posix_acl_from_xattr and posix_acl_to_xattr to
  pass in &init_user_ns.

In the short term this change is not strictly needed but it makes the
code clearer.  In the longer term this change is necessary to be able to
mount filesystems outside of the initial user namespace that natively
store posix acls in the linux xattr format.

Cc: Theodore Tso <tytso@mit.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2012-09-18 01:01:35 -07:00
Xi Wang 093019cf1b xfs: fix acl count validation in xfs_acl_from_disk()
Commit fa8b18ed didn't prevent the integer overflow and possible
memory corruption.  "count" can go negative and bypass the check.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
2011-12-16 15:17:42 -06:00
Christoph Hellwig fa8b18edd7 xfs: validate acl count
This prevents in-memory corruption and possible panics if the on-disk
ACL is badly corrupted.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
2011-11-28 22:14:24 -06:00
Christoph Hellwig c59d87c460 xfs: remove subdirectories
Use the move from Linux 2.6 to Linux 3.x as an excuse to kill the
annoying subdirectories in the XFS source code.  Besides the large
amount of file rename the only changes are to the Makefile, a few
files including headers with the subdirectory prefix, and the binary
sysctl compat code that includes a header under fs/xfs/ from
kernel/.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
2011-08-12 16:21:35 -05:00
Christoph Hellwig ef14f0c157 xfs: use generic Posix ACL code
This patch rips out the XFS ACL handling code and uses the generic
fs/posix_acl.c code instead.  The ondisk format is of course left
unchanged.

This also introduces the same ACL caching all other Linux filesystems do
by adding pointers to the acl and default acl in struct xfs_inode.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
2009-06-10 17:07:47 +02:00
David Howells 91b7771251 CRED: Wrap task credential accesses in the XFS filesystem
Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
2008-10-31 15:50:04 +11:00
Christoph Hellwig ea5a3dc835 [XFS] kill sys_cred
capable_cred has been unused for a while so we can kill it and sys_cred.
That also means the cred argument to xfs_setattr and xfs_change_file_space
can be removed now.

SGI-PV: 988918

SGI-Modid: xfs-linux-melb:xfs-kern:32412a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-10-30 18:27:48 +11:00
Christoph Hellwig 5ec7f8c7d1 [XFS] kill bhv_vnode_t
All remaining bhv_vnode_t instance are in code that's more or less Linux
specific. (Well, for xfs_acl.c that could be argued, but that code is on
the removal list, too). So just do an s/bhv_vnode_t/struct inode/ over the
whole tree. We can clean up variable naming and some useless helpers
later.

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31781a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-08-13 16:22:40 +10:00
Christoph Hellwig 604323ca76 [XFS] remove spurious VN_HOLD/VN_RELE calls from xfs_acl.c
All the ACL routines are called from inode operations which are guaranteed
to have a referenced inode by the VFS, so there's no need for the ACL code
to grab another temporary one.

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31763a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-08-13 16:12:37 +10:00
David Chinner e6064d30c3 [XFS] XFS: Kill xfs_vtoi()
xfs_vtoi() is redundant and only unsed in small sections of code.
Replace them with widely used XFS_I() inline and kill xfs_vtoi().

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31725a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-08-13 16:01:45 +10:00
Christoph Hellwig 0f285c8a1c [XFS] Now that xfs_setattr is only used for attributes set from ->setattr
it can be switched to take struct iattr directly and thus simplify the
implementation greatly. Also rename the ATTR_ flags to XFS_ATTR_ to not
conflict with the ATTR_ flags used by the VFS.

SGI-PV: 984565

SGI-Modid: xfs-linux-melb:xfs-kern:31678a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-07-28 16:59:37 +10:00
Christoph Hellwig ad9b463aa2 [XFS] Switches xfs_vn_listxattr to set it's put_listent callback directly
and not go through xfs_attr_list.

SGI-PV: 983395

SGI-Modid: xfs-linux-melb:xfs-kern:31324a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-07-28 16:58:53 +10:00
Barry Naujok e8b0ebaa11 [XFS] Cleanup xfs_attr a bit with xfs_name and remove cred
SGI-PV: 976035
SGI-Modid: xfs-linux-melb:xfs-kern:30913a

Signed-off-by: Barry Naujok <bnaujok@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-04-29 15:54:55 +10:00
Christoph Hellwig 4e5dbb3498 [XFS] kill xfs_getattr
It's currently used by the ACL code to read di_mode/di_uid, but these are
simple 32bit scalar values we can just read directly without locking.

SGI-PV: 976035
SGI-Modid: xfs-linux-melb:xfs-kern:30897a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-04-29 15:53:16 +10:00
Christoph Hellwig 42173f6860 [XFS] Remove VN_IS* macros and related cruft.
We can just check i_mode / di_mode directly.

SGI-PV: 976035
SGI-Modid: xfs-linux-melb:xfs-kern:30896a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-04-29 15:53:05 +10:00
David Chinner 5ca1f261a0 [XFS] Catch errors from xfs_acl_vremove().
Removing an ACL can return an error. Propagate it.

SGI-PV: 980084
SGI-Modid: xfs-linux-melb:xfs-kern:30793a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-04-18 11:57:57 +10:00
David Chinner 0c92829967 [XFS] Catch errors from xfs_acl_setmode().
Propagate the error status from xfs_acl_setmode() so that callers know if
the ACl was set correctly or not.

SGI-PV: 980084
SGI-Modid: xfs-linux-melb:xfs-kern:30792a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-04-18 11:57:46 +10:00
Christoph Hellwig 4576758db5 [XFS] use generic_permission
Now that all direct caller of xfs_iaccess are gone we can kill xfs_iaccess
and xfs_access and just use generic_permission with a check_acl callback.
This is required for the per-mount read-only patchset in -mm to work
properly with XFS.

SGI-PV: 971186
SGI-Modid: xfs-linux-melb:xfs-kern:30370a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-02-07 18:22:38 +11:00
Christoph Hellwig 3e5daf05a0 [XFS] simplify xfs_create/mknod/symlink prototype
Simplify the prototype for xfs_create/xfs_mkdir/xfs_symlink by not passing
down a bhv_vattr_t that just hogs stack space. Instead pass down the mode
in a mode_t and in case of xfs_create the rdev as a scalar type as well.

SGI-PV: 968563
SGI-Modid: xfs-linux-melb:xfs-kern:29794a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-10-16 14:15:32 +10:00
Christoph Hellwig 0a74cd1964 [XFS] kill struct bhv_vnode
Now that struct bhv_vnode is empty we can just kill it. Retain bhv_vnode_t
as a typedef for struct inode for the time being until all the fallout is
cleaned up.

SGI-PV: 969608
SGI-Modid: xfs-linux-melb:xfs-kern:29500a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-10-16 11:40:24 +10:00
Christoph Hellwig 2f6f7b3d9b [XFS] kill v_vfsp member from struct bhv_vnode
We can easily get at the vfsp through the super_block but it will soon be
gone anyway.

SGI-PV: 969608
SGI-Modid: xfs-linux-melb:xfs-kern:29494a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-10-16 11:23:43 +10:00
Christoph Hellwig 739bfb2a7d [XFS] call common xfs vnode-level helpers directly and remove vnode operations
SGI-PV: 969608
SGI-Modid: xfs-linux-melb:xfs-kern:29493a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-10-16 10:40:00 +10:00
Eric Sandeen 7bc5306d74 [XFS] Remove unused header files for MAC and CAP checking functionality.
xfs_mac.h and xfs_cap.h provide definitions and macros that aren't used
anywhere in XFS at all. They are left-overs from "to be implement at some
point in the future" functionality that Irix XFS has. If this
functionality ever goes into Linux, it will be provided at a different
layer, most likely through the security hooks in the kernel so we will
never need this functionality in XFS.

Patch provided by Eric Sandeen (sandeen@sandeen.net).

SGI-PV: 960895
SGI-Modid: xfs-linux-melb:xfs-kern:28036a

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10 18:37:28 +11:00
Nathan Scott f6c2d1fa63 [XFS] Remove version 1 directory code. Never functioned on Linux, just
pure bloat.

SGI-PV: 952969
SGI-Modid: xfs-linux-melb:xfs-kern:26251a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-20 13:04:51 +10:00
Nathan Scott 8285fb58e7 [XFS] Resolve a namespace collision on remaining vtypes for FreeBSD
porters.

SGI-PV: 953338
SGI-Modid: xfs-linux-melb:xfs-kern:26108a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-09 17:07:12 +10:00
Nathan Scott 67fcaa73ad [XFS] Resolve a namespace collision on vnode/vnodeops for FreeBSD porters.
SGI-PV: 953338
SGI-Modid: xfs-linux-melb:xfs-kern:26107a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-09 17:00:52 +10:00
Nathan Scott c41564b5af [XFS] We really suck at spulling. Thanks to Chris Pascoe for fixing all
these typos.

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25539a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-29 08:55:14 +10:00
Randy Dunlap 16f7e0fe2e [PATCH] capable/capability.h (fs/)
fs: Use <linux/capability.h> where capable() is used.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 18:42:13 -08:00
Christoph Hellwig 5bde1ba99c [XFS] silence gcc4 warnings. the directory ones are wrong because of
information gcc could not find out (that a directory always has a ..
entry), the others are outright gcc bugs.

SGI-PV: 943511
SGI-Modid: xfs-linux:xfs-kern:200055a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02 15:06:18 +11:00
Nathan Scott 7b71876980 [XFS] Update license/copyright notices to match the prefered SGI
boilerplate.

SGI-PV: 913862
SGI-Modid: xfs-linux:xfs-kern:23903a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02 14:58:39 +11:00
Nathan Scott a844f4510d [XFS] Remove xfs_macros.c, xfs_macros.h, rework headers a whole lot.
SGI-PV: 943122
SGI-Modid: xfs-linux:xfs-kern:23901a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02 14:38:42 +11:00
Nathan Scott 380b5dc0e5 [XFS] Fix up an internal sort function name collision issue.
SGI-PV: 942986
SGI-Modid: xfs-linux:xfs-kern:23859a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02 11:43:18 +11:00
Christoph Hellwig 0432dab2d2 [XFS] remove struct vnode::v_type
SGI-PV: 936236
SGI-Modid: xfs-linux:xfs-kern:195878a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-09-02 16:46:51 +10:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00