sctp: missing set src and dest port while lookup output route

While lookup the output route, we do not set the src and dest
port. This will cause we got a wrong route if we had set the
outbund transport to IPsec with src or dst port.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 704298f4b284..182749867c72 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -474,13 +474,17 @@ static struct dst_entry *sctp_v4_get_dst(struct sctp_association *asoc,
 
         memset(&fl, 0x0, sizeof(struct flowi));
         fl.fl4_dst  = daddr->v4.sin_addr.s_addr;
+        fl.fl_ip_dport = daddr->v4.sin_port;
         fl.proto = IPPROTO_SCTP;
         if (asoc) {
                 fl.fl4_tos = RT_CONN_FLAGS(asoc->base.sk);
                 fl.oif = asoc->base.sk->sk_bound_dev_if;
+                fl.fl_ip_sport = htons(asoc->base.bind_addr.port);
         }
-        if (saddr)
+        if (saddr) {
                 fl.fl4_src = saddr->v4.sin_addr.s_addr;
+                fl.fl_ip_sport = saddr->v4.sin_port;
+        }
 
         SCTP_DEBUG_PRINTK("%s: DST:%pI4, SRC:%pI4 - ",
                           __func__, &fl.fl4_dst, &fl.fl4_src);
@@ -528,6 +532,7 @@ static struct dst_entry *sctp_v4_get_dst(struct sctp_association *asoc,
                 if ((laddr->state == SCTP_ADDR_SRC) &&
                     (AF_INET == laddr->a.sa.sa_family)) {
                         fl.fl4_src = laddr->a.v4.sin_addr.s_addr;
+                        fl.fl_ip_sport = laddr->a.v4.sin_port;
                         if (!ip_route_output_key(&init_net, &rt, &fl)) {
                                 dst = &rt->u.dst;
                                 goto out_unlock;