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Commit 5506b54b authored by Mitsuru Chinen's avatar Mitsuru Chinen Committed by David S. Miller
Browse files

[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: default avatarMitsuru Chinen <mitch@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 704aed53

net/ipv4/ip_input.c

+7 −0
Original line number Diff line number Diff line
@@ -329,6 +329,7 @@ static inline int ip_rcv_options(struct sk_buff *skb) 
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: