audit: allow unlimited backlog queue (40c0775e) · Commits · 戴 / test

Since audit can already be disabled by "audit=0" on the kernel boot line, or by the command "auditctl -e 0", it would be more useful to have the audit_backlog_limit set to zero mean effectively unlimited (limited only by system RAM). Acked-by:

Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by:

Richard Guy Briggs <rgb@redhat.com> Signed-off-by:

Eric Paris <eparis@redhat.com>

kernel/audit.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -101,7 +101,8 @@ static __u32 audit_nlk_portid;
		* audit records being dropped. */
		static int audit_rate_limit;

		/* Number of outstanding audit_buffers allowed. */
		/* Number of outstanding audit_buffers allowed.
		* When set to zero, this means unlimited. */
		static int audit_backlog_limit = 64;
		#define AUDIT_BACKLOG_WAIT_TIME (60 * HZ)
		static int audit_backlog_wait_time = AUDIT_BACKLOG_WAIT_TIME;
		@@ -375,7 +376,8 @@ static int audit_set_failure(int state)
		static void audit_hold_skb(struct sk_buff *skb)
		{
		if (audit_default &&
		skb_queue_len(&audit_skb_hold_queue) < audit_backlog_limit)
		(!audit_backlog_limit \|\|
		skb_queue_len(&audit_skb_hold_queue) < audit_backlog_limit))
		skb_queue_tail(&audit_skb_hold_queue, skb);
		else
		kfree_skb(skb);

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