]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ipv6: Fixed source specific default route handling.
authorMarkus Stenberg <markus.stenberg@iki.fi>
Tue, 5 May 2015 10:36:59 +0000 (13:36 +0300)
committerDavid S. Miller <davem@davemloft.net>
Sat, 9 May 2015 19:58:41 +0000 (15:58 -0400)
commite16e888b525503be05b3aea64190e8b3bdef44d0
tree7894cd9304ab18668c2d003bfa3e8c8c3a31e41f
parent0a801445db4cb00bc900fd89b1e5eb7d7b581d7e
ipv6: Fixed source specific default route handling.

If there are only IPv6 source specific default routes present, the
host gets -ENETUNREACH on e.g. connect() because ip6_dst_lookup_tail
calls ip6_route_output first, and given source address any, it fails,
and ip6_route_get_saddr is never called.

The change is to use the ip6_route_get_saddr, even if the initial
ip6_route_output fails, and then doing ip6_route_output _again_ after
we have appropriate source address available.

Note that this is '99% fix' to the problem; a correct fix would be to
do route lookups only within addrconf.c when picking a source address,
and never call ip6_route_output before source address has been
populated.

Signed-off-by: Markus Stenberg <markus.stenberg@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/ip6_output.c
net/ipv6/route.c