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authorStephen Smalley <sds@tycho.nsa.gov>2005-09-10 00:01:39 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-10 00:57:27 +0400
commit10f47e6a1b8b276323b652053945c87a63a5812d (patch)
treea927d6a4129cb9d76e96d2434b4dde7c1aff76d5 /fs/ext2/xattr_security.c
parent5e41ff9e0650f327a6c819841fa412da95d57319 (diff)
downloadlinux-10f47e6a1b8b276323b652053945c87a63a5812d.tar.xz
[PATCH] ext2: Enable atomic inode security labeling
This patch modifies ext2 to call the inode_init_security LSM hook to obtain the security attribute for a newly created inode and to set the resulting attribute on the new inode. This parallels the existing processing for setting ACLs on newly created inodes. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ext2/xattr_security.c')
-rw-r--r--fs/ext2/xattr_security.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c
index 6a6c59fbe599..a26612798471 100644
--- a/fs/ext2/xattr_security.c
+++ b/fs/ext2/xattr_security.c
@@ -8,6 +8,7 @@
#include <linux/fs.h>
#include <linux/smp_lock.h>
#include <linux/ext2_fs.h>
+#include <linux/security.h>
#include "xattr.h"
static size_t
@@ -45,6 +46,27 @@ ext2_xattr_security_set(struct inode *inode, const char *name,
value, size, flags);
}
+int
+ext2_init_security(struct inode *inode, struct inode *dir)
+{
+ int err;
+ size_t len;
+ void *value;
+ char *name;
+
+ err = security_inode_init_security(inode, dir, &name, &value, &len);
+ if (err) {
+ if (err == -EOPNOTSUPP)
+ return 0;
+ return err;
+ }
+ err = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY,
+ name, value, len, 0);
+ kfree(name);
+ kfree(value);
+ return err;
+}
+
struct xattr_handler ext2_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.list = ext2_xattr_security_list,