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Merge tag 'selinux-pr-20190917' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

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Pull selinux updates from Paul Moore:

 - Add LSM hooks, and SELinux access control hooks, for dnotify,
   fanotify, and inotify watches. This has been discussed with both the
   LSM and fs/notify folks and everybody is good with these new hooks.

 - The LSM stacking changes missed a few calls to current_security() in
   the SELinux code; we fix those and remove current_security() for
   good.

 - Improve our network object labeling cache so that we always return
   the object's label, even when under memory pressure. Previously we
   would return an error if we couldn't allocate a new cache entry, now
   we always return the label even if we can't create a new cache entry
   for it.

 - Convert the sidtab atomic_t counter to a normal u32 with
   READ/WRITE_ONCE() and memory barrier protection.

 - A few patches to policydb.c to clean things up (remove forward
   declarations, long lines, bad variable names, etc)

* tag 'selinux-pr-20190917' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  lsm: remove current_security()
  selinux: fix residual uses of current_security() for the SELinux blob
  selinux: avoid atomic_t usage in sidtab
  fanotify, inotify, dnotify, security: add security hook for fs notifications
  selinux: always return a secid from the network caches if we find one
  selinux: policydb - rename type_val_to_struct_array
  selinux: policydb - fix some checkpatch.pl warnings
  selinux: shuffle around policydb.c to get rid of forward declarations
This commit is contained in:
Linus Torvalds
2019-09-23 11:21:04 -07:00
parent 3c6a6910a8 15322a0d90
commit 5825a95fe9
18 changed files with 596 additions and 500 deletions
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9
include/linux/lsm_hooks.h
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@@ -339,6 +339,9 @@
* Check for permission to change root directory.
* @path contains the path structure.
* Return 0 if permission is granted.
* @path_notify:
* Check permissions before setting a watch on events as defined by @mask,
* on an object at @path, whose type is defined by @obj_type.
* @inode_readlink:
* Check the permission to read the symbolic link.
* @dentry contains the dentry structure for the file link.
@@ -1535,7 +1538,9 @@ union security_list_options {
int (*path_chown)(const struct path *path, kuid_t uid, kgid_t gid);
int (*path_chroot)(const struct path *path);
#endif
/* Needed for inode based security check */
int (*path_notify)(const struct path *path, u64 mask,
unsigned int obj_type);
int (*inode_alloc_security)(struct inode *inode);
void (*inode_free_security)(struct inode *inode);
int (*inode_init_security)(struct inode *inode, struct inode *dir,
@@ -1860,6 +1865,8 @@ struct security_hook_heads {
struct hlist_head path_chown;
struct hlist_head path_chroot;
#endif
/* Needed for inode based modules as well */
struct hlist_head path_notify;
struct hlist_head inode_alloc_security;
struct hlist_head inode_free_security;
struct hlist_head inode_init_security;