diff options
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 1b8c5ba7d5f7..c0a15e7f359f 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1013,11 +1013,31 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) if (!rt) { struct net *net = sock_net(sk); + __u8 flow_flags = inet_sk_flowi_flags(sk); 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_vrf(net, ipc.oif)) { + flowi4_init_output(fl4, ipc.oif, sk->sk_mark, tos, + RT_SCOPE_UNIVERSE, sk->sk_protocol, + (flow_flags | FLOWI_FLAG_VRFSRC), + 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, - inet_sk_flowi_flags(sk), + flow_flags, faddr, saddr, dport, inet->inet_sport); security_sk_classify_flow(sk, flowi4_to_flowi(fl4)); |