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[IPV4]: Snmpv2 Mib IP counter ipInAddrErrors support

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I followed Thomas' proposal to see every martian destination as a case
where the ipInAddrErrors counter has to be incremented. There are
two advantages by doing so: (1) The relation between the ipInReceive
counter and all the other ipInXXX counters is more accurate in the
case the RTN_UNICAST code check fails and (2) it makes the code in
ip_route_input_slow easier.

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dietmar Eggemann
2005-06-28 13:06:23 -07:00
committed by David S. Miller
parent ae9cda5d65
commit 2c2910a401
2 changed files with 12 additions and 3 deletions
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6
net/ipv4/ip_input.c
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@ -283,14 +283,18 @@ static inline int ip_rcv_finish(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
struct iphdr *iph = skb->nh.iph;
int err;
/*
* Initialise the virtual path cache for the packet. It describes
* how the packet travels inside Linux networking.
*/
if (skb->dst == NULL) {
if (ip_route_input(skb, iph->daddr, iph->saddr, iph->tos, dev))
if ((err = ip_route_input(skb, iph->daddr, iph->saddr, iph->tos, dev))) {
if (err == -EHOSTUNREACH)
IP_INC_STATS_BH(IPSTATS_MIB_INADDRERRORS);
goto drop;
}
}
#ifdef CONFIG_NET_CLS_ROUTE