kdbus: Remove kdbus Linux Security Module hooks

This commit removes support for kdbus-LSM hooks as policy decisions
are handled solely by userspace (libdbuspolicy library).  This commit
reverts following:

 - 802de9506 ("lsm: smack: smack callbacks for kdbus security hooks")

 - f13b7e7bd ("kdbus: use LSM hooks in kdbus code")

 - 067afa709 ("lsm: smack: Make ipc/kdbus includes visible so smack callbacks could see them")

 - 442f047fd ("lsm: make security_file_receive available for external modules")

 - 3b556db4b ("lsm: kdbus security hooks")

Change-Id: Iae90cdb9577a9e706288b28d70bd57574398276e
Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

1 files changed, 0 insertions, 50 deletions

diff --git a/include/linux/security.h b/include/linux/security.h
index f089395fa18a..5d45b4fd91d2 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -53,7 +53,6 @@ struct msg_queue;
 struct xattr;
 struct xfrm_sec_ctx;
 struct mm_struct;
-struct kdbus_conn;
 
 /* Maximum number of letters for an LSM name string */
 #define SECURITY_NAME_MAX	10
@@ -1456,20 +1455,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  * 	@inode we wish to get the security context of.
  *	@ctx is a pointer in which to place the allocated security context.
  *	@ctxlen points to the place to put the length of @ctx.
- *
- * Security hooks for kdbus
- *
- * @kdbus_conn_alloc:
- *	Allocate and initialize security related part of kdbus connection.
- *	Return 0 on success.
- *
- * @kdbus_conn_free:
- *	Deallocate security related part of kdbus connection.
- *
- * @kdbus_talk:
- *	Check if peers can talk to each other.
- *	Return 0 if permission is granted.
- *
  * This is the main security structure.
  */
 struct security_operations {
@@ -1687,13 +1672,6 @@ struct security_operations {
 	int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen);
 	int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen);
 
-#ifdef CONFIG_KDBUS
-	int (*kdbus_conn_alloc)(struct kdbus_conn *conn);
-	void (*kdbus_conn_free)(struct kdbus_conn *conn);
-	int (*kdbus_talk)(const struct kdbus_conn *src,
-			  const struct kdbus_conn *dst);
-#endif /* CONFIG_KDBUS */
-
 #ifdef CONFIG_SECURITY_NETWORK
 	int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk);
 	int (*unix_may_send) (struct socket *sock, struct socket *other);
@@ -3116,34 +3094,6 @@ static inline int security_path_chroot(struct path *path)
 }
 #endif	/* CONFIG_SECURITY_PATH */
 
-#ifdef CONFIG_KDBUS
-#ifdef CONFIG_SECURITY
-
-int security_kdbus_conn_alloc(struct kdbus_conn *conn);
-void security_kdbus_conn_free(struct kdbus_conn *conn);
-int security_kdbus_talk(const struct kdbus_conn *src,
-			const struct kdbus_conn *dst);
-
-#else /* CONFIG_SECURITY */
-
-static inline int security_kdbus_conn_alloc(struct kdbus_conn *conn)
-{
-	return 0;
-}
-
-static inline void security_kdbus_conn_free(struct kdbus_conn *conn)
-{
-}
-
-static inline int security_kdbus_talk(const struct kdbus_conn *src,
-				      const struct kdbus_conn *dst)
-{
-	return 0;
-}
-
-#endif /* CONFIG_SECURITY */
-#endif /* CONFIG_KDBUS */
-
 #ifdef CONFIG_KEYS
 #ifdef CONFIG_SECURITY