[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 <acme@mandriva.com>

parent 811265b8

net/dccp/input.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -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;