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authorMitsuru Chinen <mitch@linux.vnet.ibm.com>2007-04-30 00:48:10 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-30 00:58:29 -0700
commit5506b54b36f067b9776935085c9f8e607b026b23 (patch)
tree04a5d22848fedd739463f22e98c93dc28db792f4
parent704aed53b4e43bebfbd425cf95b66794a9cfa2c2 (diff)
downloadlinux-5506b54b36f067b9776935085c9f8e607b026b23.tar.bz2
[IPV4] SNMP: Support InMcastPkts and InBcastPkts
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>
-rw-r--r--net/ipv4/ip_input.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index c8c455dd9caf..97069399d864 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -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: