[DCCP]: Handle SYNC packets in dccp_rcv_state_process

Eliciting a SYNCACK in response, we were handling SYNC packets only in the DCCP_OPEN state, in dccp_rcv_established. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
chewitt · Sep 13, 2005 · 2b80230 · 2b80230
1 parent 811265b
commit 2b80230
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/net/dccp/input.c b/net/dccp/input.c
@@ -562,6 +562,12 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 		return 0;
 	}
 
+	if (unlikely(dh->dccph_type == DCCP_PKT_SYNC)) {
+		dccp_send_sync(sk, DCCP_SKB_CB(skb)->dccpd_seq,
+			       DCCP_PKT_SYNCACK);
+		goto discard;
+	}
+
 	switch (sk->sk_state) {
 	case DCCP_CLOSED:
 		return 1;