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| /* SPDX-License-Identifier: GPL-2.0 */
| #ifndef _NF_NAT_HELPER_H
| #define _NF_NAT_HELPER_H
| /* NAT protocol helper routines. */
|
| #include <net/netfilter/nf_conntrack.h>
|
| struct sk_buff;
|
| /* These return true or false. */
| bool __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,
| unsigned int rep_len, bool adjust);
|
| static inline bool 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,
| unsigned int rep_len)
| {
| return __nf_nat_mangle_tcp_packet(skb, ct, ctinfo, protoff,
| match_offset, match_len,
| rep_buffer, rep_len, true);
| }
|
| bool 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,
| unsigned int rep_len);
|
| /* Setup NAT on this expected conntrack so it follows master, but goes
| * to port ct->master->saved_proto. */
| void nf_nat_follow_master(struct nf_conn *ct, struct nf_conntrack_expect *this);
|
| #endif
|
|
