tcp_unique_tuple(struct nf_conntrack_tuple *tuple,
const struct nf_nat_range *range,
enum nf_nat_manip_type maniptype,
tcp_unique_tuple(struct nf_conntrack_tuple *tuple,
const struct nf_nat_range *range,
enum nf_nat_manip_type maniptype,
tcp_manip_pkt(struct sk_buff *skb,
unsigned int iphdroff,
const struct nf_conntrack_tuple *tuple,
tcp_manip_pkt(struct sk_buff *skb,
unsigned int iphdroff,
const struct nf_conntrack_tuple *tuple,
hdrsize = sizeof(struct tcphdr);
if (!skb_make_writable(skb, hdroff + hdrsize))
hdrsize = sizeof(struct tcphdr);
if (!skb_make_writable(skb, hdroff + hdrsize))
inet_proto_csum_replace4(&hdr->check, skb, oldip, newip, 1);
inet_proto_csum_replace2(&hdr->check, skb, oldport, newport, 0);
inet_proto_csum_replace4(&hdr->check, skb, oldip, newip, 1);
inet_proto_csum_replace2(&hdr->check, skb, oldport, newport, 0);