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Commit 038cbcf6 authored by Eric Paris's avatar Eric Paris Committed by Al Viro
Browse files

Audit: unify the printk of an skb when auditd not around 



Remove code duplication of skb printk when auditd is not around in userspace
to deal with this message.

Signed-off-by: default avatarEric Paris <eparis@redhat.com>
parent e85188f4

kernel/audit.c

+22 −17
Original line number Diff line number Diff line
@@ -375,6 +375,25 @@ static void audit_hold_skb(struct sk_buff *skb) 
		kfree_skb(skb);

}



/*

 * For one reason or another this nlh isn't getting delivered to the userspace

 * audit daemon, just send it to printk.

 */

static void audit_printk_skb(struct sk_buff *skb)

{

	struct nlmsghdr *nlh = nlmsg_hdr(skb);

	char *data = NLMSG_DATA(nlh);



	if (nlh->nlmsg_type != AUDIT_EOE) {

		if (printk_ratelimit())

			printk(KERN_NOTICE "type=%d %s\n", nlh->nlmsg_type, data);

		else

			audit_log_lost("printk limit exceeded\n");

	}



	audit_hold_skb(skb);

}



static void kauditd_send_skb(struct sk_buff *skb)

{

	int err;
@@ -427,14 +446,8 @@ static int kauditd_thread(void *dummy) 
		if (skb) {

			if (audit_pid)

				kauditd_send_skb(skb);

			else {

				if (printk_ratelimit())

					printk(KERN_NOTICE "%s\n", skb->data + NLMSG_SPACE(0));

			else

					audit_log_lost("printk limit exceeded\n");



				audit_hold_skb(skb);

			}

				audit_printk_skb(skb);

		} else {

			DECLARE_WAITQUEUE(wait, current);

			set_current_state(TASK_INTERRUPTIBLE);
@@ -1475,15 +1488,7 @@ void audit_log_end(struct audit_buffer *ab) 
			skb_queue_tail(&audit_skb_queue, ab->skb);

			wake_up_interruptible(&kauditd_wait);

		} else {

			if (nlh->nlmsg_type != AUDIT_EOE) {

				if (printk_ratelimit()) {

					printk(KERN_NOTICE "type=%d %s\n",

						nlh->nlmsg_type,

						ab->skb->data + NLMSG_SPACE(0));

				} else

					audit_log_lost("printk limit exceeded\n");

			}

			audit_hold_skb(ab->skb);

			audit_printk_skb(ab->skb);

		}

		ab->skb = NULL;

	}