LSM: Add security_path_chmod() and security_path_chown().
This patch allows pathname based LSM modules to check chmod()/chown()
operations. Since notify_change() does not receive "struct vfsmount *",
we add security_path_chmod() and security_path_chown() to the caller of
notify_change().
These hooks are used by TOMOYO.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/security.c b/security/security.c
index c4c6732..5259270 100644
--- a/security/security.c
+++ b/security/security.c
@@ -434,6 +434,21 @@
return 0;
return security_ops->path_truncate(path, length, time_attrs);
}
+
+int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
+ mode_t mode)
+{
+ if (unlikely(IS_PRIVATE(dentry->d_inode)))
+ return 0;
+ return security_ops->path_chmod(dentry, mnt, mode);
+}
+
+int security_path_chown(struct path *path, uid_t uid, gid_t gid)
+{
+ if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
+ return 0;
+ return security_ops->path_chown(path, uid, gid);
+}
#endif
int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)