[XFRM]: Handle DCCP in xfrm{4,6}_decode_session

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index b2b60f3..42196ba 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -182,6 +182,7 @@
 		case IPPROTO_UDP:
 		case IPPROTO_TCP:
 		case IPPROTO_SCTP:
+		case IPPROTO_DCCP:
 			if (pskb_may_pull(skb, xprth + 4 - skb->data)) {
 				u16 *ports = (u16 *)xprth;