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| author | Rick Jones <rick.jones2@hp.com> | 2014-11-06 10:37:54 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-07 15:45:50 -0500 |
| commit | 36cbb2452cbafca64dcdd3578047433787900cf0 (patch) | |
| tree | 3e50381574c3850fc2a6c76a14777daa821f85a0 /net/ipv4/proc.c | |
| parent | f46ad73ac6965f71d1a2ba217c4eb5b644e62949 (diff) | |
| download | linux-stable-36cbb2452cbafca64dcdd3578047433787900cf0.tar.gz linux-stable-36cbb2452cbafca64dcdd3578047433787900cf0.tar.bz2 linux-stable-36cbb2452cbafca64dcdd3578047433787900cf0.zip | |
udp: Increment UDP_MIB_IGNOREDMULTI for arriving unmatched multicasts
As NIC multicast filtering isn't perfect, and some platforms are
quite content to spew broadcasts, we should not trigger an event
for skb:kfree_skb when we do not have a match for such an incoming
datagram. We do though want to avoid sweeping the matter under the
rug entirely, so increment a suitable statistic.
This incorporates feedback from David L. Stevens, Karl Neiss and Eric
Dumazet.
V3 - use bool per David Miller
Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/proc.c')
| -rw-r--r-- | net/ipv4/proc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index f0d4eb8b99b9..6513ade8d6dc 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -181,6 +181,7 @@ static const struct snmp_mib snmp4_udp_list[] = { SNMP_MIB_ITEM("RcvbufErrors", UDP_MIB_RCVBUFERRORS), SNMP_MIB_ITEM("SndbufErrors", UDP_MIB_SNDBUFERRORS), SNMP_MIB_ITEM("InCsumErrors", UDP_MIB_CSUMERRORS), + SNMP_MIB_ITEM("IgnoredMulti", UDP_MIB_IGNOREDMULTI), SNMP_MIB_SENTINEL }; |