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[IPV4] SNMP: Support InMcastPkts and InBcastPkts

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A received IP multicast datagram should be counted as InMcastPkts.
By the same token, a received IP broadcast datagram should be
counted as InBcastPkts.

Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mitsuru Chinen 2007-04-30 00:48:10 -07:00 committed by David S. Miller
parent 704aed53b4
commit 5506b54b36
1 changed files with 7 additions and 0 deletions
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7
net/ipv4/ip_input.c
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@ -329,6 +329,7 @@ drop:
static inline int ip_rcv_finish(struct sk_buff *skb)
{
const struct iphdr *iph = ip_hdr(skb);
struct rtable *rt;
/*
* Initialise the virtual path cache for the packet. It describes
@ -360,6 +361,12 @@ static inline int ip_rcv_finish(struct sk_buff *skb)
if (iph->ihl > 5 && ip_rcv_options(skb))
goto drop;
rt = (struct rtable*)skb->dst;
if (rt->rt_type == RTN_MULTICAST)
IP_INC_STATS_BH(IPSTATS_MIB_INMCASTPKTS);
else if (rt->rt_type == RTN_BROADCAST)
IP_INC_STATS_BH(IPSTATS_MIB_INBCASTPKTS);
return dst_input(skb);
drop: