From 8cbb512c923d5f695ff6265b2b741b1718e3b444 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Mon, 5 Oct 2015 08:51:26 -0700 Subject: net: Add source address lookup op for VRF Add operation to l3mdev to lookup source address for a given flow. Add support for the operation to VRF driver and convert existing IPv4 hooks to use the new lookup. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/ipv4/udp.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) (limited to 'net/ipv4/udp.c') diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index b2882cfd3136..e1fc129099ea 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1017,30 +1017,14 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) fl4 = &fl4_stack; - /* unconnected socket. If output device is enslaved to a VRF - * device lookup source address from VRF table. This mimics - * behavior of ip_route_connect{_init}. - */ - if (netif_index_is_l3_master(net, ipc.oif)) { - flowi4_init_output(fl4, ipc.oif, sk->sk_mark, tos, - RT_SCOPE_UNIVERSE, sk->sk_protocol, - (flow_flags | FLOWI_FLAG_L3MDEV_SRC | - FLOWI_FLAG_SKIP_NH_OIF), - faddr, saddr, dport, - inet->inet_sport); - - rt = ip_route_output_flow(net, fl4, sk); - if (!IS_ERR(rt)) { - saddr = fl4->saddr; - ip_rt_put(rt); - } - } - flowi4_init_output(fl4, ipc.oif, sk->sk_mark, tos, RT_SCOPE_UNIVERSE, sk->sk_protocol, flow_flags, faddr, saddr, dport, inet->inet_sport); + if (!saddr && ipc.oif) + l3mdev_get_saddr(net, ipc.oif, fl4); + security_sk_classify_flow(sk, flowi4_to_flowi(fl4)); rt = ip_route_output_flow(net, fl4, sk); if (IS_ERR(rt)) { -- cgit v1.2.3