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Diffstat (limited to 'net')
-rw-r--r--net/dccp/ipv4.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index cc5d60d9afa..02ebf1f39f3 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);