From: Gerrit Renker <gerrit@erg.abdn.ac.uk>
To: dccp@vger.kernel.org
Subject: [PATCH 1/5]: Sequence number wrap-around when sending reset
Date: Wed, 12 Sep 2007 14:35:08 +0000 [thread overview]
Message-ID: <200709121535.08544@strip-the-willow> (raw)
[DCCP]: Sequence number wrap-around when sending reset
This replaces normal addition with mod-48 addition so that
sequence number wraparound is respected.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
---
net/dccp/ipv4.c | 2 +-
net/dccp/ipv6.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -554,7 +554,7 @@ static void dccp_v4_ctl_send_reset(struc
/* See "8.3.1. Abnormal Termination" in RFC 4340 */
if (DCCP_SKB_CB(rxskb)->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
- dccp_set_seqno(&seqno, DCCP_SKB_CB(rxskb)->dccpd_ack_seq + 1);
+ seqno = ADD48(DCCP_SKB_CB(rxskb)->dccpd_ack_seq, 1);
dccp_hdr_set_seq(dh, seqno);
dccp_hdr_set_ack(dccp_hdr_ack_bits(skb), DCCP_SKB_CB(rxskb)->dccpd_seq);
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -336,7 +336,7 @@ static void dccp_v6_ctl_send_reset(struc
/* See "8.3.1. Abnormal Termination" in RFC 4340 */
if (DCCP_SKB_CB(rxskb)->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
- dccp_set_seqno(&seqno, DCCP_SKB_CB(rxskb)->dccpd_ack_seq + 1);
+ seqno = ADD48(DCCP_SKB_CB(rxskb)->dccpd_ack_seq, 1);
dccp_hdr_set_seq(dh, seqno);
dccp_hdr_set_ack(dccp_hdr_ack_bits(skb), DCCP_SKB_CB(rxskb)->dccpd_seq);
next reply other threads:[~2007-09-12 14:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-12 14:35 Gerrit Renker [this message]
2007-09-13 0:06 ` [PATCH 1/5]: Sequence number wrap-around when sending reset Ian McDonald
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