From: Arnaldo Carvalho de Melo Date: Sun, 21 Aug 2005 08:33:48 +0000 (-0300) Subject: [DCCP]: Fix seqno setting in dccp_v4_ctl_send_reset X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2807d4ffb0dccb8f932c3e1701b6b6163153d333;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [DCCP]: Fix seqno setting in dccp_v4_ctl_send_reset Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- 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);