We can't use skb_reset_transport_header() together with skb_put() to set skb->transport_header field because skb_put() does not touch skb->data. Do this same way as we did for csum_data in code: substract skb->head from tcph. Signed-off-by: Serhey Popovych <serhe.popovych@xxxxxxxxx> --- net/ipv4/netfilter/ipt_SYNPROXY.c | 8 ++++---- net/ipv6/netfilter/ip6t_SYNPROXY.c | 8 ++++---- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/net/ipv4/netfilter/ipt_SYNPROXY.c b/net/ipv4/netfilter/ipt_SYNPROXY.c index f75fc6b..4953390 100644 --- a/net/ipv4/netfilter/ipt_SYNPROXY.c +++ b/net/ipv4/netfilter/ipt_SYNPROXY.c @@ -90,8 +90,8 @@ niph = synproxy_build_ip(net, nskb, iph->daddr, iph->saddr); - skb_reset_transport_header(nskb); nth = skb_put(nskb, tcp_hdr_size); + nskb->transport_header = (unsigned char *)nth - nskb->head; nth->source = th->dest; nth->dest = th->source; nth->seq = htonl(__cookie_v4_init_sequence(iph, th, &mss)); @@ -132,8 +132,8 @@ niph = synproxy_build_ip(net, nskb, iph->saddr, iph->daddr); - skb_reset_transport_header(nskb); nth = skb_put(nskb, tcp_hdr_size); + nskb->transport_header = (unsigned char *)nth - nskb->head; nth->source = th->source; nth->dest = th->dest; nth->seq = htonl(recv_seq - 1); @@ -177,8 +177,8 @@ niph = synproxy_build_ip(net, nskb, iph->daddr, iph->saddr); - skb_reset_transport_header(nskb); nth = skb_put(nskb, tcp_hdr_size); + nskb->transport_header = (unsigned char *)nth - nskb->head; nth->source = th->dest; nth->dest = th->source; nth->seq = htonl(ntohl(th->ack_seq)); @@ -215,8 +215,8 @@ niph = synproxy_build_ip(net, nskb, iph->saddr, iph->daddr); - skb_reset_transport_header(nskb); nth = skb_put(nskb, tcp_hdr_size); + nskb->transport_header = (unsigned char *)nth - nskb->head; nth->source = th->source; nth->dest = th->dest; nth->seq = htonl(ntohl(th->seq) + 1); diff --git a/net/ipv6/netfilter/ip6t_SYNPROXY.c b/net/ipv6/netfilter/ip6t_SYNPROXY.c index 437af8c..46c1e28 100644 --- a/net/ipv6/netfilter/ip6t_SYNPROXY.c +++ b/net/ipv6/netfilter/ip6t_SYNPROXY.c @@ -104,8 +104,8 @@ niph = synproxy_build_ip(net, nskb, &iph->daddr, &iph->saddr); - skb_reset_transport_header(nskb); nth = skb_put(nskb, tcp_hdr_size); + nskb->transport_header = (unsigned char *)nth - nskb->head; nth->source = th->dest; nth->dest = th->source; nth->seq = htonl(__cookie_v6_init_sequence(iph, th, &mss)); @@ -146,8 +146,8 @@ niph = synproxy_build_ip(net, nskb, &iph->saddr, &iph->daddr); - skb_reset_transport_header(nskb); nth = skb_put(nskb, tcp_hdr_size); + nskb->transport_header = (unsigned char *)nth - nskb->head; nth->source = th->source; nth->dest = th->dest; nth->seq = htonl(recv_seq - 1); @@ -191,8 +191,8 @@ niph = synproxy_build_ip(net, nskb, &iph->daddr, &iph->saddr); - skb_reset_transport_header(nskb); nth = skb_put(nskb, tcp_hdr_size); + nskb->transport_header = (unsigned char *)nth - nskb->head; nth->source = th->dest; nth->dest = th->source; nth->seq = htonl(ntohl(th->ack_seq)); @@ -229,8 +229,8 @@ niph = synproxy_build_ip(net, nskb, &iph->saddr, &iph->daddr); - skb_reset_transport_header(nskb); nth = skb_put(nskb, tcp_hdr_size); + nskb->transport_header = (unsigned char *)nth - nskb->head; nth->source = th->source; nth->dest = th->dest; nth->seq = htonl(ntohl(th->seq) + 1); -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
