1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _NETFILTER_NF_NAT_H
3#define _NETFILTER_NF_NAT_H
4
5#include <linux/netfilter.h>
6#include <linux/netfilter/nf_conntrack_tuple_common.h>
7
8#define NF_NAT_RANGE_MAP_IPS (1 << 0)
9#define NF_NAT_RANGE_PROTO_SPECIFIED (1 << 1)
10#define NF_NAT_RANGE_PROTO_RANDOM (1 << 2)
11#define NF_NAT_RANGE_PERSISTENT (1 << 3)
12#define NF_NAT_RANGE_PROTO_RANDOM_FULLY (1 << 4)
13#define NF_NAT_RANGE_PROTO_OFFSET (1 << 5)
14
15#define NF_NAT_RANGE_PROTO_RANDOM_ALL \
16 (NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PROTO_RANDOM_FULLY)
17
18#define NF_NAT_RANGE_MASK \
19 (NF_NAT_RANGE_MAP_IPS | NF_NAT_RANGE_PROTO_SPECIFIED | \
20 NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PERSISTENT | \
21 NF_NAT_RANGE_PROTO_RANDOM_FULLY | NF_NAT_RANGE_PROTO_OFFSET)
22
23struct nf_nat_ipv4_range {
24 unsigned int flags;
25 __be32 min_ip;
26 __be32 max_ip;
27 union nf_conntrack_man_proto min;
28 union nf_conntrack_man_proto max;
29};
30
31struct nf_nat_ipv4_multi_range_compat {
32 unsigned int rangesize;
33 struct nf_nat_ipv4_range range[1];
34};
35
36struct nf_nat_range {
37 unsigned int flags;
38 union nf_inet_addr min_addr;
39 union nf_inet_addr max_addr;
40 union nf_conntrack_man_proto min_proto;
41 union nf_conntrack_man_proto max_proto;
42};
43
44struct nf_nat_range2 {
45 unsigned int flags;
46 union nf_inet_addr min_addr;
47 union nf_inet_addr max_addr;
48 union nf_conntrack_man_proto min_proto;
49 union nf_conntrack_man_proto max_proto;
50 union nf_conntrack_man_proto base_proto;
51};
52
53#endif /* _NETFILTER_NF_NAT_H */
54