Messages in this thread Patch in this message | | | Date | Tue, 10 Jun 2003 15:55:10 +0200 (CEST) | From | Maciej Soltysiak <> | Subject | [PATCHLET] 2.5.70 invalid icmp broadcast. |
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Hello,
I noticed this a couple of weeks ago in the kernel log: 150.254.39.135 sent an invalid to a broadcast.
I decided to make the kernel be more verbose about it. Here is a patch that would show: 150.254.39.135 sent an invalid ICMP type 11, code 0 error to a broadcast: 150.254.39.255 on eth1
Please apply.
Regards, Maciej
diff -Nru linux-2.5.68.bak/net/ipv4/icmp.c linux-2.5.70/net/ipv4/icmp.c --- linux-2.5.68.bak/net/ipv4/icmp.c 2003-05-17 14:56:11.000000000 +0200 +++ linux-2.5.70/net/ipv4/icmp.c 2003-06-09 13:21:37.000000000 +0200 @@ -663,8 +659,12 @@ inet_addr_type(iph->daddr) == RTN_BROADCAST) { if (net_ratelimit()) printk(KERN_WARNING "%u.%u.%u.%u sent an invalid ICMP " - "error to a broadcast.\n", - NIPQUAD(skb->nh.iph->saddr)); + "type %u, code %u " + "error to a broadcast: %u.%u.%u.%u on %s\n", + NIPQUAD(iph->saddr), + icmph->type, icmph->code, + NIPQUAD(iph->daddr), + skb->dev->name); goto out; }
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