diff options
Diffstat (limited to 'include/linux/netfilter_ipv4/ip_nat_helper.h')
| -rw-r--r-- | include/linux/netfilter_ipv4/ip_nat_helper.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/netfilter_ipv4/ip_nat_helper.h b/include/linux/netfilter_ipv4/ip_nat_helper.h new file mode 100644 index 00000000000..bf9cb105c88 --- /dev/null +++ b/include/linux/netfilter_ipv4/ip_nat_helper.h @@ -0,0 +1,33 @@ +#ifndef _IP_NAT_HELPER_H +#define _IP_NAT_HELPER_H +/* NAT protocol helper routines. */ + +#include <linux/netfilter_ipv4/ip_conntrack.h> +#include <linux/module.h> + +struct sk_buff; + +/* These return true or false. */ +extern int ip_nat_mangle_tcp_packet(struct sk_buff **skb, + struct ip_conntrack *ct, + enum ip_conntrack_info ctinfo, + unsigned int match_offset, + unsigned int match_len, + const char *rep_buffer, + unsigned int rep_len); +extern int ip_nat_mangle_udp_packet(struct sk_buff **skb, + struct ip_conntrack *ct, + enum ip_conntrack_info ctinfo, + unsigned int match_offset, + unsigned int match_len, + const char *rep_buffer, + unsigned int rep_len); +extern int ip_nat_seq_adjust(struct sk_buff **pskb, + struct ip_conntrack *ct, + enum ip_conntrack_info ctinfo); + +/* Setup NAT on this expected conntrack so it follows master, but goes + * to port ct->master->saved_proto. */ +extern void ip_nat_follow_master(struct ip_conntrack *ct, + struct ip_conntrack_expect *this); +#endif |