From 2807d4ffb0dccb8f932c3e1701b6b6163153d333 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Sun, 21 Aug 2005 05:33:48 -0300 Subject: [PATCH] [DCCP]: Fix seqno setting in dccp_v4_ctl_send_reset Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- net/dccp/ipv4.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index cc5d60d9afa4..02ebf1f39f38 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -887,6 +887,7 @@ static void dccp_v4_ctl_send_reset(struct sk_buff *rxskb) sizeof(struct dccp_hdr_reset); struct sk_buff *skb; struct dst_entry *dst; + u64 seqno; /* Never send a reset in response to a reset. */ if (rxdh->dccph_type == DCCP_PKT_RESET) @@ -920,7 +921,12 @@ static void dccp_v4_ctl_send_reset(struct sk_buff *rxskb) dccp_hdr_reset(skb)->dccph_reset_code = DCCP_SKB_CB(rxskb)->dccpd_reset_code; - dccp_hdr_set_seq(dh, DCCP_SKB_CB(rxskb)->dccpd_ack_seq); + /* See "8.3.1. Abnormal Termination" in draft-ietf-dccp-spec-11 */ + seqno = 0; + 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); + + dccp_hdr_set_seq(dh, seqno); dccp_hdr_set_ack(dccp_hdr_ack_bits(skb), DCCP_SKB_CB(rxskb)->dccpd_seq); -- GitLab