[DCCP]: Send SYNCACK packets in response to SYNC packets

Also fix step 6 when receiving SYNC or SYNCACK packets, i.e. we were not using
the updated swl.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/net/dccp/output.c b/net/dccp/output.c
index dcc061bed924..384fd0920983 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -404,7 +404,8 @@ void dccp_send_delayed_ack(struct sock *sk)
         sk_reset_timer(sk, &icsk->icsk_delack_timer, timeout);
 }
 
-void dccp_send_sync(struct sock *sk, u64 seq)
+void dccp_send_sync(struct sock *sk, const u64 seq,
+                    const enum dccp_pkt_type pkt_type)
 {
         /*
          * We are not putting this on the write queue, so
@@ -420,7 +421,7 @@ void dccp_send_sync(struct sock *sk, u64 seq)
         /* Reserve space for headers and prepare control bits. */
         skb_reserve(skb, MAX_DCCP_HEADER);
         skb->csum = 0;
-        DCCP_SKB_CB(skb)->dccpd_type = DCCP_PKT_SYNC;
+        DCCP_SKB_CB(skb)->dccpd_type = pkt_type;
         DCCP_SKB_CB(skb)->dccpd_seq = seq;
 
         skb_set_owner_w(skb, sk);