From: Christoph Paasch <christoph.paasch@uclouvain.be>
Date: Wed, 22 Jan 2014 12:58:44 +0000 (+0100)
Subject: tcp: metrics: Handle v6/v4-mapped sockets in tcp-metrics
X-Git-Tag: v3.14-rc1~94^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3ad88cf70af79e6f19c4f89dd85453ba4fdf425e;p=pandora-kernel.git

tcp: metrics: Handle v6/v4-mapped sockets in tcp-metrics

A socket may be v6/v4-mapped. In that case sk->sk_family is AF_INET6,
but the IP being used is actually an IPv4-address.
Current's tcp-metrics will thus represent it as an IPv6-address:

root@server:~# ip tcp_metrics
::ffff:10.1.1.2 age 22.920sec rtt 18750us rttvar 15000us cwnd 10
10.1.1.2 age 47.970sec rtt 16250us rttvar 10000us cwnd 10

This patch modifies the tcp-metrics so that they are able to handle the
v6/v4-mapped sockets correctly.

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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