msg/security: Pass kern_ipc_perm not msg_queue into the msg_queue security hooks
All of the implementations of security hooks that take msg_queue only
access q_perm the struct kern_ipc_perm member. This means the
dependencies of the msg_queue security hooks can be simplified by
passing the kern_ipc_perm member of msg_queue.
Making this change will allow struct msg_queue to become private to
ipc/msg.c.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index cac7a80..bde167f 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1575,13 +1575,13 @@
int (*msg_msg_alloc_security)(struct msg_msg *msg);
void (*msg_msg_free_security)(struct msg_msg *msg);
- int (*msg_queue_alloc_security)(struct msg_queue *msq);
- void (*msg_queue_free_security)(struct msg_queue *msq);
- int (*msg_queue_associate)(struct msg_queue *msq, int msqflg);
- int (*msg_queue_msgctl)(struct msg_queue *msq, int cmd);
- int (*msg_queue_msgsnd)(struct msg_queue *msq, struct msg_msg *msg,
+ int (*msg_queue_alloc_security)(struct kern_ipc_perm *msq);
+ void (*msg_queue_free_security)(struct kern_ipc_perm *msq);
+ int (*msg_queue_associate)(struct kern_ipc_perm *msq, int msqflg);
+ int (*msg_queue_msgctl)(struct kern_ipc_perm *msq, int cmd);
+ int (*msg_queue_msgsnd)(struct kern_ipc_perm *msq, struct msg_msg *msg,
int msqflg);
- int (*msg_queue_msgrcv)(struct msg_queue *msq, struct msg_msg *msg,
+ int (*msg_queue_msgrcv)(struct kern_ipc_perm *msq, struct msg_msg *msg,
struct task_struct *target, long type,
int mode);