diff options
Diffstat (limited to 'kernel/audit.c')
| -rw-r--r-- | kernel/audit.c | 30 |
1 files changed, 10 insertions, 20 deletions
diff --git a/kernel/audit.c b/kernel/audit.c index ba2ff5a5c600..80983df92cd4 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -126,7 +126,7 @@ static atomic_t audit_lost = ATOMIC_INIT(0); /* The netlink socket. */ static struct sock *audit_sock; -int audit_net_id; +static int audit_net_id; /* Hash for inode-based rules */ struct list_head audit_inode_hash[AUDIT_INODE_BUCKETS]; @@ -724,7 +724,7 @@ static int audit_get_feature(struct sk_buff *skb) seq = nlmsg_hdr(skb)->nlmsg_seq; - audit_send_reply(skb, seq, AUDIT_GET, 0, 0, &af, sizeof(af)); + audit_send_reply(skb, seq, AUDIT_GET_FEATURE, 0, 0, &af, sizeof(af)); return 0; } @@ -750,7 +750,7 @@ static int audit_set_feature(struct sk_buff *skb) struct audit_features *uaf; int i; - BUILD_BUG_ON(AUDIT_LAST_FEATURE + 1 > sizeof(audit_feature_names)/sizeof(audit_feature_names[0])); + BUILD_BUG_ON(AUDIT_LAST_FEATURE + 1 > ARRAY_SIZE(audit_feature_names)); uaf = nlmsg_data(nlmsg_hdr(skb)); /* if there is ever a version 2 we should handle that here */ @@ -1301,19 +1301,9 @@ err: */ unsigned int audit_serial(void) { - static DEFINE_SPINLOCK(serial_lock); - static unsigned int serial = 0; + static atomic_t serial = ATOMIC_INIT(0); - unsigned long flags; - unsigned int ret; - - spin_lock_irqsave(&serial_lock, flags); - do { - ret = ++serial; - } while (unlikely(!ret)); - spin_unlock_irqrestore(&serial_lock, flags); - - return ret; + return atomic_add_return(1, &serial); } static inline void audit_get_stamp(struct audit_context *ctx, @@ -1681,7 +1671,7 @@ void audit_log_cap(struct audit_buffer *ab, char *prefix, kernel_cap_t *cap) } } -void audit_log_fcaps(struct audit_buffer *ab, struct audit_names *name) +static void audit_log_fcaps(struct audit_buffer *ab, struct audit_names *name) { kernel_cap_t *perm = &name->fcap.permitted; kernel_cap_t *inh = &name->fcap.inheritable; @@ -1860,7 +1850,7 @@ EXPORT_SYMBOL(audit_log_task_context); void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk) { const struct cred *cred; - char name[sizeof(tsk->comm)]; + char comm[sizeof(tsk->comm)]; struct mm_struct *mm = tsk->mm; char *tty; @@ -1894,9 +1884,8 @@ void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk) from_kgid(&init_user_ns, cred->fsgid), tty, audit_get_sessionid(tsk)); - get_task_comm(name, tsk); audit_log_format(ab, " comm="); - audit_log_untrustedstring(ab, name); + audit_log_untrustedstring(ab, get_task_comm(comm, tsk)); if (mm) { down_read(&mm->mmap_sem); @@ -1959,6 +1948,7 @@ void audit_log_end(struct audit_buffer *ab) } else { struct nlmsghdr *nlh = nlmsg_hdr(ab->skb); + nlh->nlmsg_len = ab->skb->len; kauditd_send_multicast_skb(ab->skb); /* @@ -1970,7 +1960,7 @@ void audit_log_end(struct audit_buffer *ab) * protocol between the kaudit kernel subsystem and the auditd * userspace code. */ - nlh->nlmsg_len = ab->skb->len - NLMSG_HDRLEN; + nlh->nlmsg_len -= NLMSG_HDRLEN; if (audit_pid) { skb_queue_tail(&audit_skb_queue, ab->skb); |