diff options
Diffstat (limited to 'net/dccp/minisocks.c')
| -rw-r--r-- | net/dccp/minisocks.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c index 5a7f90bbffa..ea850ce35d4 100644 --- a/net/dccp/minisocks.c +++ b/net/dccp/minisocks.c @@ -127,9 +127,11 @@ struct sock *dccp_create_openreq_child(struct sock *sk, * activation below, as these windows all depend on the local * and remote Sequence Window feature values (7.5.2). */ - newdp->dccps_gss = newdp->dccps_iss = dreq->dreq_iss; + newdp->dccps_iss = dreq->dreq_iss; + newdp->dccps_gss = dreq->dreq_gss; newdp->dccps_gar = newdp->dccps_iss; - newdp->dccps_gsr = newdp->dccps_isr = dreq->dreq_isr; + newdp->dccps_isr = dreq->dreq_isr; + newdp->dccps_gsr = dreq->dreq_gsr; /* * Activate features: initialise CCIDs, sequence windows etc. @@ -164,9 +166,9 @@ struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb, /* Check for retransmitted REQUEST */ if (dccp_hdr(skb)->dccph_type == DCCP_PKT_REQUEST) { - if (after48(DCCP_SKB_CB(skb)->dccpd_seq, dreq->dreq_isr)) { + if (after48(DCCP_SKB_CB(skb)->dccpd_seq, dreq->dreq_gsr)) { dccp_pr_debug("Retransmitted REQUEST\n"); - dreq->dreq_isr = DCCP_SKB_CB(skb)->dccpd_seq; + dreq->dreq_gsr = DCCP_SKB_CB(skb)->dccpd_seq; /* * Send another RESPONSE packet * To protect against Request floods, increment retrans @@ -186,12 +188,14 @@ struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb, goto drop; /* Invalid ACK */ - if (DCCP_SKB_CB(skb)->dccpd_ack_seq != dreq->dreq_iss) { + if (!between48(DCCP_SKB_CB(skb)->dccpd_ack_seq, + dreq->dreq_iss, dreq->dreq_gss)) { dccp_pr_debug("Invalid ACK number: ack_seq=%llu, " - "dreq_iss=%llu\n", + "dreq_iss=%llu, dreq_gss=%llu\n", (unsigned long long) DCCP_SKB_CB(skb)->dccpd_ack_seq, - (unsigned long long) dreq->dreq_iss); + (unsigned long long) dreq->dreq_iss, + (unsigned long long) dreq->dreq_gss); goto drop; } |