netns xfrm: lookup in netns

Pass netns to xfrm_lookup()/__xfrm_lookup(). For that pass netns
to flow_cache_lookup() and resolver callback.

Take it from socket or netdevice. Stub DECnet to init_net.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index fd2d9ad4a8a3..38390dd19636 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -849,7 +849,8 @@ do_udp_sendmsg:
         if (final_p)
                 ipv6_addr_copy(&fl.fl6_dst, final_p);
 
-        if ((err = __xfrm_lookup(&dst, &fl, sk, XFRM_LOOKUP_WAIT)) < 0) {
+        err = __xfrm_lookup(sock_net(sk), &dst, &fl, sk, XFRM_LOOKUP_WAIT);
+        if (err < 0) {
                 if (err == -EREMOTE)
                         err = ip6_dst_blackhole(sk, &dst, &fl);
                 if (err < 0)