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* jffs2/jfs/xfs: switch over to 'check_acl' rather than 'permission()'Linus Torvalds2009-09-081-6/+1
| | | | | | | | | | | This avoids an indirect call in the VFS for each path component lookup. Well, at least as long as you own the directory in question, and the ACL check is unnecessary. Reviewed-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Get "no acls for this inode" right, fix shmem breakageAl Viro2009-06-241-2/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* helpers for acl caching + switch to thoseAl Viro2009-06-241-49/+11
| | | | | | | | | helpers: get_cached_acl(inode, type), set_cached_acl(inode, type, acl), forget_cached_acl(inode, type). ubifs/xattr.c needed includes reordered, the rest is a plain switchover. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch jffs2 to inode->i_aclAl Viro2009-06-241-35/+19
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge git://git.infradead.org/mtd-2.6Linus Torvalds2009-04-061-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: (53 commits) [MTD] struct device - replace bus_id with dev_name(), dev_set_name() [MTD] [NOR] Fixup for Numonyx M29W128 chips [MTD] mtdpart: Make ecc_stats more realistic. powerpc/85xx: TQM8548: Update DTS file for multi-chip support powerpc: NAND: FSL UPM: document new bindings [MTD] [NAND] FSL-UPM: Add wait flags to support board/chip specific delays [MTD] [NAND] FSL-UPM: add multi chip support [MTD] [NOR] Add device parent info to physmap_of [MTD] [NAND] Add support for NAND on the Socrates board [MTD] [NAND] Add support for 4KiB pages. [MTD] sysfs support should not depend on CONFIG_PROC_FS [MTD] [NAND] Add parent info for CAFÉ controller [MTD] support driver model updates [MTD] driver model updates (part 2) [MTD] driver model updates [MTD] [NAND] move gen_nand's probe function to .devinit.text [MTD] [MAPS] move sa1100 flash's probe function to .devinit.text [MTD] fix use after free in register_mtd_blktrans [MTD] [MAPS] Drop now unused sharpsl-flash map [MTD] ofpart: Check name property to determine partition nodes. ... Manually fix trivial conflict in drivers/mtd/maps/Makefile
| * [JFFS2] jffs2_acl_count() tests < 0 on unsignedRoel Kluin2009-03-201-2/+2
| | | | | | | | | | | | | | | | size_t s is unsigned and cannot be less than 0. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | New helper - current_umask()Al Viro2009-04-011-1/+1
|/ | | | | | | current->fs->umask is what most of fs_struct users are doing. Put that into a helper function. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [PATCH] sanitize ->permission() prototypeAl Viro2008-07-271-1/+1
| | | | | | | | | | | | | | | * kill nameidata * argument; map the 3 bits in ->flags anybody cares about to new MAY_... ones and pass with the mask. * kill redundant gfs2_iop_permission() * sanitize ecryptfs_permission() * fix remaining places where ->permission() instances might barf on new MAY_... found in mask. The obvious next target in that direction is permission(9) folded fix for nfs_permission() breakage from Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [JFFS2] Add missing call to posix_acl_releaseJulia Lawall2008-01-081-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | posix_acl_clone does a memory allocation and sets a reference count, so posix_acl_release is needed afterwards to free it. The problem was fixed using the following semantic patch. (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T; identifier E; expression E1, E2; int ret; statement S; @@ T E; <+... ( E = \(posix_acl_clone\|posix_acl_alloc\|posix_acl_dup\)(...); if (E == NULL) S | if ((E = \(posix_acl_clone\|posix_acl_alloc\|posix_acl_dup\)(...)) == NULL) S ) ... when != E2 = E when strict ( posix_acl_release(E); | E1 = E; | + posix_acl_release(E); return; | + posix_acl_release(E); return ret; ) ...+> // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [JFFS2] make jffs2_get_acl() staticAdrian Bunk2007-11-061-1/+1
| | | | | | | | | jffs2_get_acl() can now become static again. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [JFFS2] Prevent return of initialised variable in jffs2_init_acl_post()David Woodhouse2007-10-271-1/+1
| | | | | | Spotted by the Coverity checker, and pointed out by Adrian Bunk. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [JFFS2] Tidy up fix for ACL/permissions problem.KaiGai Kohei2007-10-201-36/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | [In commit 9ed437c50d89eabae763dd422579f73fdebf288d we fixed a problem with standard permissions on newly-created inodes, when POSIX ACLs are enabled. This cleans it up...] The attached patch separate jffs2_init_acl() into two parts. The one is jffs2_init_acl_pre() called from jffs2_new_inode(). It compute ACL oriented inode->i_mode bits, and allocate in-memory ACL objects associated with the new inode just before when inode meta infomation is written to the medium. The other is jffs2_init_acl_post() called from jffs2_symlink(), jffs2_mkdir(), jffs2_mknod() and jffs2_do_create(). It actually writes in-memory ACL objects into the medium next to the success of writing meta-information. In the current implementation, we have to write a same inode meta infomation twice when inode->i_mode is updated by the default ACL. However, we can avoid the behavior by putting an updated i_mode before it is written at first, as jffs2_init_acl_pre() doing. Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [JFFS2] Fix ACL vs. mode handling.David Woodhouse2007-08-221-12/+11
| | | | | | | | | When POSIX ACL support was enabled, we weren't writing correct legacy modes to the medium on inode creation, or when the ACL was set. This meant that the permissions would be incorrect after the file system was remounted. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid checkSatyam Sharma2007-07-171-1/+1
| | | | | | | | | | | | | | | | | | | | Introduce is_owner_or_cap() macro in fs.h, and convert over relevant users to it. This is done because we want to avoid bugs in the future where we check for only effective fsuid of the current task against a file's owning uid, without simultaneously checking for CAP_FOWNER as well, thus violating its semantics. [ XFS uses special macros and structures, and in general looked ... untouchable, so we leave it alone -- but it has been looked over. ] The (current->fsuid != inode->i_uid) check in generic_permission() and exec_permission_lite() is left alone, because those operations are covered by CAP_DAC_OVERRIDE and CAP_DAC_READ_SEARCH. Similarly operations falling under the purview of CAP_CHOWN and CAP_LEASE are also left alone. Signed-off-by: Satyam Sharma <ssatyam@cse.iitk.ac.in> Cc: Al Viro <viro@ftp.linux.org.uk> Acked-by: Serge E. Hallyn <serge@hallyn.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [JFFS2] Tidy up licensing/copyright boilerplate.David Woodhouse2007-04-251-1/+2
| | | | | | | | | | | | | | In particular, remove the bit in the LICENCE file about contacting Red Hat for alternative arrangements. Their errant IS department broke that arrangement a long time ago -- the policy of collecting copyright assignments from contributors came to an end when the plug was pulled on the servers hosting the project, without notice or reason. We do still dual-license it for use with eCos, with the GPL+exception licence approved by the FSF as being GPL-compatible. It's just that nobody has the right to license it differently. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] severing fs.h, radix-tree.h -> sched.hAl Viro2006-12-041-0/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [JFFS2][XATTR] Fix memory leak in POSIX-ACL supportKaiGai Kohei2006-07-021-3/+1
| | | | | | | | | | | | jffs2_clear_acl() which releases acl caches allocated by kmalloc() was defined but it was never called. Thus, we faced to the risk of memory leaking. This patch plugs jffs2_clear_acl() into jffs2_do_clear_inode(). It ensures to release acl cache when inode is cleared. Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [JFFS2][XATTR] Fix ACL bug when updating null xattr by null ACL.KaiGai Kohei2006-06-271-0/+2
| | | | | | | | | | | | | This patch enable to handle the case when updating null xattr by null ACL. When we try to set NULL into NULL xattr, xattr subsystem returns -ENODATA. This patch enables to handle this error code. [2/3] jffs2-xattr-v6-02-fix_posixacl_bug.patch Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [JFFS2][XATTR] remove redundant pointer cast in acl.cKaiGai Kohei2006-05-131-20/+21
| | | | | | | | remove redundant pointer cast in acl.c. [10/10] jffs2-xattr-v5.1-10-remove_pointer_cast.patch Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
* [JFFS2][XATTR] Unify each file header part with any jffs2 file.KaiGai Kohei2006-05-131-7/+8
| | | | | | | | Unify each file header part with any jffs2 file. [7/10] jffs2-xattr-v5.1-07-unify_file_header.patch Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
* [JFFS2][XATTR] remove typedef from posix_acl related definition.KaiGai Kohei2006-05-131-26/+26
| | | | | | | | | jffs2_acl_header, jffs2_acl_entry and jffs2_acl_entry_short were redefined with using 'struct' instead of 'typedef' in kernel implementation. [1/10] jffs2-xattr-v5.1-01-remove_typedef_kernel.patch Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
* [JFFS2][XATTR] XATTR support on JFFS2 (version. 5)KaiGai Kohei2006-05-131-0/+483
This attached patches provide xattr support including POSIX-ACL and SELinux support on JFFS2 (version.5). There are some significant differences from previous version posted at last December. The biggest change is addition of EBS(Erase Block Summary) support. Currently, both kernel and usermode utility (sumtool) can recognize xattr nodes which have JFFS2_NODETYPE_XATTR/_XREF nodetype. In addition, some bugs are fixed. - A potential race condition was fixed. - Unexpected fail when updating a xattr by same name/value pair was fixed. - A bug when removing xattr name/value pair was fixed. The fundamental structures (such as using two new nodetypes and exclusion mechanism by rwsem) are unchanged. But most of implementation were reviewed and updated if necessary. Espacially, we had to change several internal implementations related to load_xattr_datum() to avoid a potential race condition. [1/2] xattr_on_jffs2.kernel.version-5.patch [2/2] xattr_on_jffs2.utils.version-5.patch Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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