diff options
| -rw-r--r-- | net/dccp/input.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/net/dccp/input.c b/net/dccp/input.c index 6276b23fc20..cde0e704dfc 100644 --- a/net/dccp/input.c +++ b/net/dccp/input.c @@ -102,9 +102,6 @@ static int dccp_check_seqno(struct sock *sk, struct sk_buff *skb) * Update S.GSR, S.SWL, S.SWH * If P.type != Sync, * Update S.GAR - * Otherwise, - * Send Sync packet acknowledging P.seqno - * Drop packet and return */ lswl = dp->dccps_swl; lawl = dp->dccps_awl; @@ -135,6 +132,17 @@ static int dccp_check_seqno(struct sock *sk, struct sk_buff *skb) : "exists", (unsigned long long) lawl, (unsigned long long) ackno, (unsigned long long) dp->dccps_awh); + /* + * Step 6: Check sequence numbers + * Otherwise, + * If P.type == Reset, + * Send Sync packet acknowledging S.GSR + * Otherwise, + * Send Sync packet acknowledging P.seqno + * Drop packet and return + */ + if (dh->dccph_type == DCCP_PKT_RESET) + seqno = dp->dccps_gsr; dccp_send_sync(sk, seqno, DCCP_PKT_SYNC); return -1; } |