int __nf_nat_mangle_tcp_packet(struct sk_buff *skb,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
+ unsigned int protoff,
unsigned int match_offset,
unsigned int match_len,
const char *rep_buffer,
nf_nat_mangle_udp_packet(struct sk_buff *skb,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
+ unsigned int protoff,
unsigned int match_offset,
unsigned int match_len,
const char *rep_buffer,
int
nf_nat_seq_adjust(struct sk_buff *skb,
struct nf_conn *ct,
- enum ip_conntrack_info ctinfo)
+ enum ip_conntrack_info ctinfo,
+ unsigned int protoff)
{
struct tcphdr *tcph;
int dir;
this_way = &nat->seq[dir];
other_way = &nat->seq[!dir];
- if (!skb_make_writable(skb, ip_hdrlen(skb) + sizeof(*tcph)))
+ if (!skb_make_writable(skb, protoff + sizeof(*tcph)))
return 0;
- tcph = (void *)skb->data + ip_hdrlen(skb);
+ tcph = (void *)skb->data + protoff;
if (after(ntohl(tcph->seq), this_way->correction_pos))
seqoff = this_way->offset_after;
else