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Diffstat (limited to 'net/dccp/input.c')
-rw-r--r--net/dccp/input.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/dccp/input.c b/net/dccp/input.c
index f01d588299c8..c74034cf7ede 100644
--- 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;