ipv6: only apply anti-spoofing checks to not-pointopoint tunnels
authorHannes Frederic Sowa <hannes@stressinduktion.org>
Thu, 27 Jun 2013 20:46:04 +0000 (22:46 +0200)
committerDavid S. Miller <davem@davemloft.net>
Mon, 1 Jul 2013 20:26:18 +0000 (13:26 -0700)
commit5c29fb12e8fb8a8105ea048cb160fd79a85a52bb
tree0cd076a18e55598a819c9358a19865f78ed9d43e
parente62bc9e55f75ecb41dac3e68cd4b61f9d9501f72
ipv6: only apply anti-spoofing checks to not-pointopoint tunnels

Because of commit 218774dc341f219bfcf940304a081b121a0e8099 ("ipv6: add
anti-spoofing checks for 6to4 and 6rd") the sit driver dropped packets
for 2002::/16 destinations and sources even when configured to work as a
tunnel with fixed endpoint. We may only apply the 6rd/6to4 anti-spoofing
checks if the device is not in pointopoint mode.

This was an oversight from me in the above commit, sorry.  Thanks to
Roman Mamedov for reporting this!

Reported-by: Roman Mamedov <rm@romanrm.ru>
Cc: David Miller <davem@davemloft.net>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/sit.c