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authorStephen Smalley <sds@tycho.nsa.gov>2005-09-09 16:01:43 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-09 16:57:28 -0400
commit570bc1c2e5ccdb408081e77507a385dc7ebed7fa (patch)
treed00d2df7c93899fa2028128c40961fec46ede471 /fs
parentac50960afa31877493add6d941d8402fa879c452 (diff)
[PATCH] tmpfs: Enable atomic inode security labeling
This patch modifies tmpfs to call the inode_init_security LSM hook to set up the incore inode security state for new inodes before the inode becomes accessible via the dcache. As there is no underlying storage of security xattrs in this case, it is not necessary for the hook to return the (name, value, len) triple to the tmpfs code, so this patch also modifies the SELinux hook function to correctly handle the case where the (name, value, len) pointers are NULL. The hook call is needed in tmpfs in order to support proper security labeling of tmpfs inodes (e.g. for udev with tmpfs /dev in Fedora). With this change in place, we should then be able to remove the security_inode_post_create/mkdir/... hooks safely. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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