netdev - [PATCH 2/6] [IPV4] SNMP: Support InNoRoutes

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Message-Id: <20070417201315.54ba847c.mitch@linux.vnet.ibm.com>
Date:	Tue, 17 Apr 2007 20:13:15 +0900
From:	Mitsuru Chinen <mitch@...ux.vnet.ibm.com>
To:	netdev@...r.kernel.org
Cc:	Mitsuru Chinen <mitch@...ux.vnet.ibm.com>
Subject: [PATCH 2/6] [IPV4] SNMP: Support InNoRoutes

An IP datagram which is being discarded because of no routes in the
forwarding path should be counted as InNoRoutes.

Signed-off-by: Mitsuru Chinen <mitch@...ux.vnet.ibm.com>
---
 net/ipv4/ip_input.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 324e7e0..63ab523 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -340,6 +340,8 @@ static inline int ip_rcv_finish(struct s
 		if (unlikely(err)) {
 			if (err == -EHOSTUNREACH)
 				IP_INC_STATS_BH(IPSTATS_MIB_INADDRERRORS);
+			else if (err == -ENETUNREACH)
+				IP_INC_STATS_BH(IPSTATS_MIB_INNOROUTES);
 			goto drop;
 		}
 	}
-- 
1.4.3.4

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