From 4c1feac58e06270321cc500b85c2d94a11495775 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Sat, 10 Sep 2016 12:09:56 -0700 Subject: net: vrf: Flip IPv6 output path from FIB lookup hook to out hook Flip the IPv6 output path to use the l3mdev tx out hook. The VRF dst is not returned on the first FIB lookup. Instead, the dst on the skb is switched at the beginning of the IPv6 output processing to send the packet to the VRF driver on xmit. Link scope addresses (linklocal and multicast) need special handling: specifically the oif the flow struct can not be changed because we want the lookup tied to the enslaved interface. ie., the source address and the returned route MUST point to the interface scope passed in. Convert the existing vrf_get_rt6_dst to handle only link scope addresses. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/ipv6/route.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'net/ipv6/route.c') diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 2c681113c055..87e0a01ce744 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1188,12 +1188,15 @@ static struct rt6_info *ip6_pol_route_output(struct net *net, struct fib6_table struct dst_entry *ip6_route_output_flags(struct net *net, const struct sock *sk, struct flowi6 *fl6, int flags) { - struct dst_entry *dst; bool any_src; - dst = l3mdev_get_rt6_dst(net, fl6); - if (dst) - return dst; + if (rt6_need_strict(&fl6->daddr)) { + struct dst_entry *dst; + + dst = l3mdev_link_scope_lookup(net, fl6); + if (dst) + return dst; + } fl6->flowi6_iif = LOOPBACK_IFINDEX; -- cgit v1.2.1