net: ingress filter message limit
If user misconfigures ingress and causes a redirection loop, don't overwhelm the log. This is also a error case so make it unlikely. Found by inspection, luckily not in real system. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -2646,10 +2646,10 @@ static int ing_filter(struct sk_buff *skb)
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int result = TC_ACT_OK;
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struct Qdisc *q;
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if (MAX_RED_LOOP < ttl++) {
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printk(KERN_WARNING
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"Redir loop detected Dropping packet (%d->%d)\n",
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skb->skb_iif, dev->ifindex);
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if (unlikely(MAX_RED_LOOP < ttl++)) {
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if (net_ratelimit())
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pr_warning( "Redir loop detected Dropping packet (%d->%d)\n",
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skb->skb_iif, dev->ifindex);
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return TC_ACT_SHOT;
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}
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