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Commit 704aed53 authored by Mitsuru Chinen's avatar Mitsuru Chinen Committed by David S. Miller
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[IPV4] SNMP: Support InTruncatedPkts 



An IP datagram which is being discarded because the datagram frame
didn't carry enough data should be counted as InTruncatedPkts.

Signed-off-by: default avatarMitsuru Chinen <mitch@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e91a47eb

net/ipv4/ip_input.c

+4 −1
Original line number Diff line number Diff line
@@ -416,7 +416,10 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, 
		goto inhdr_error;



	len = ntohs(iph->tot_len);

	if (skb->len < len || len < (iph->ihl*4))

	if (skb->len < len) {

		IP_INC_STATS_BH(IPSTATS_MIB_INTRUNCATEDPKTS);

		goto drop;

	} else if (len < (iph->ihl*4))

		goto inhdr_error;



	/* Our transport medium may have padded the buffer out. Now we know it