tree 25d61775c649aef151a63590e904f35d43f37733
parent 29fbff8698fc0ac1a1d74584b258e0bf18b469f9
author Vadim Fedorenko <junk@yandex-team.ru> 1476215240 +0300
committer David S. Miller <davem@davemloft.net> 1476453686 -0400

ip6_tunnel: fix ip6_tnl_lookup

The commit ea3dc9601bda ("ip6_tunnel: Add support for wildcard tunnel
endpoints.") introduces support for wildcards in tunnels endpoints,
but in some rare circumstances ip6_tnl_lookup selects wrong tunnel
interface relying only on source or destination address of the packet
and not checking presence of wildcard in tunnels endpoints. Later in
ip6_tnl_rcv this packets can be dicarded because of difference in
ipproto even if fallback device have proper ipproto configuration.

This patch adds checks of wildcard endpoint in tunnel avoiding such
behavior

Fixes: ea3dc9601bda ("ip6_tunnel: Add support for wildcard tunnel endpoints.")
Signed-off-by: Vadim Fedorenko <junk@yandex-team.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>