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sanitize audit_mq_open()

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* don't bother with allocations
* don't do double copy_from_user()
* don't duplicate parts of check for audit_dummy_context()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2008-12-14 04:02:26 -05:00
parent c32c8af43b
commit 564f6993ff
3 changed files with 38 additions and 59 deletions
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9
include/linux/audit.h
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@ -450,7 +450,7 @@ extern void audit_socketcall(int nargs, unsigned long *args);
extern int audit_sockaddr(int len, void *addr);
extern int __audit_fd_pair(int fd1, int fd2);
extern int audit_set_macxattr(const char *name);
extern int __audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr);
extern void __audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr);
extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
@ -475,11 +475,10 @@ static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid
if (unlikely(!audit_dummy_context()))
__audit_ipc_set_perm(qbytes, uid, gid, mode);
}
static inline int audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr)
static inline void audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr)
{
if (unlikely(!audit_dummy_context()))
return __audit_mq_open(oflag, mode, u_attr);
return 0;
__audit_mq_open(oflag, mode, attr);
}
static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout)
{
@ -541,7 +540,7 @@ extern int audit_signals;
#define audit_fd_pair(n,a) ({ 0; })
#define audit_sockaddr(len, addr) ({ 0; })
#define audit_set_macxattr(n) do { ; } while (0)
#define audit_mq_open(o,m,a) ({ 0; })
#define audit_mq_open(o,m,a) ((void)0)
#define audit_mq_sendrecv(d,l,p,t) ((void)0)
#define audit_mq_notify(d,n) ((void)0)
#define audit_mq_getsetattr(d,s) ((void)0)