2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #define NG_NAT_NODE_TYPE "nat"
32 #define NGM_NAT_COOKIE 1107718711
34 #define NG_NAT_HOOK_IN "in"
35 #define NG_NAT_HOOK_OUT "out"
37 /* Arguments for NGM_NAT_SET_MODE message */
43 /* Keep this in sync with the above structure definition */
44 #define NG_NAT_MODE_INFO { \
45 { "flags", &ng_parse_uint32_type }, \
46 { "mask", &ng_parse_uint32_type }, \
50 #define NG_NAT_LOG 0x01
51 #define NG_NAT_DENY_INCOMING 0x02
52 #define NG_NAT_SAME_PORTS 0x04
53 #define NG_NAT_UNREGISTERED_ONLY 0x10
54 #define NG_NAT_RESET_ON_ADDR_CHANGE 0x20
55 #define NG_NAT_PROXY_ONLY 0x40
56 #define NG_NAT_REVERSE 0x80
58 #define NG_NAT_DESC_LENGTH 64
59 #define NG_NAT_REDIRPROTO_ADDR (IPPROTO_MAX + 3) /* LibAlias' LINK_ADDR, also unused in in.h */
61 /* Arguments for NGM_NAT_REDIRECT_PORT message */
62 struct ng_nat_redirect_port {
63 struct in_addr local_addr;
64 struct in_addr alias_addr;
65 struct in_addr remote_addr;
70 char description[NG_NAT_DESC_LENGTH];
73 /* Keep this in sync with the above structure definition */
74 #define NG_NAT_REDIRECT_PORT_TYPE_INFO(desctype) { \
75 { "local_addr", &ng_parse_ipaddr_type }, \
76 { "alias_addr", &ng_parse_ipaddr_type }, \
77 { "remote_addr", &ng_parse_ipaddr_type }, \
78 { "local_port", &ng_parse_uint16_type }, \
79 { "alias_port", &ng_parse_uint16_type }, \
80 { "remote_port", &ng_parse_uint16_type }, \
81 { "proto", &ng_parse_uint8_type }, \
82 { "description", (desctype) }, \
86 /* Arguments for NGM_NAT_REDIRECT_ADDR message */
87 struct ng_nat_redirect_addr {
88 struct in_addr local_addr;
89 struct in_addr alias_addr;
90 char description[NG_NAT_DESC_LENGTH];
93 /* Keep this in sync with the above structure definition */
94 #define NG_NAT_REDIRECT_ADDR_TYPE_INFO(desctype) { \
95 { "local_addr", &ng_parse_ipaddr_type }, \
96 { "alias_addr", &ng_parse_ipaddr_type }, \
97 { "description", (desctype) }, \
101 /* Arguments for NGM_NAT_REDIRECT_PROTO message */
102 struct ng_nat_redirect_proto {
103 struct in_addr local_addr;
104 struct in_addr alias_addr;
105 struct in_addr remote_addr;
107 char description[NG_NAT_DESC_LENGTH];
110 /* Keep this in sync with the above structure definition */
111 #define NG_NAT_REDIRECT_PROTO_TYPE_INFO(desctype) { \
112 { "local_addr", &ng_parse_ipaddr_type }, \
113 { "alias_addr", &ng_parse_ipaddr_type }, \
114 { "remote_addr", &ng_parse_ipaddr_type }, \
115 { "proto", &ng_parse_uint8_type }, \
116 { "description", (desctype) }, \
120 /* Arguments for NGM_NAT_ADD_SERVER message */
121 struct ng_nat_add_server {
127 /* Keep this in sync with the above structure definition */
128 #define NG_NAT_ADD_SERVER_TYPE_INFO { \
129 { "id", &ng_parse_uint32_type }, \
130 { "addr", &ng_parse_ipaddr_type }, \
131 { "port", &ng_parse_uint16_type }, \
135 /* List entry of array returned in NGM_NAT_LIST_REDIRECTS message */
136 struct ng_nat_listrdrs_entry {
137 uint32_t id; /* Anything except zero */
138 struct in_addr local_addr;
139 struct in_addr alias_addr;
140 struct in_addr remote_addr;
143 uint16_t remote_port;
144 uint16_t proto; /* Valid proto or NG_NAT_REDIRPROTO_ADDR */
145 uint16_t lsnat; /* LSNAT servers count */
146 char description[NG_NAT_DESC_LENGTH];
149 /* Keep this in sync with the above structure definition */
150 #define NG_NAT_LISTRDRS_ENTRY_TYPE_INFO(desctype) { \
151 { "id", &ng_parse_uint32_type }, \
152 { "local_addr", &ng_parse_ipaddr_type }, \
153 { "alias_addr", &ng_parse_ipaddr_type }, \
154 { "remote_addr", &ng_parse_ipaddr_type }, \
155 { "local_port", &ng_parse_uint16_type }, \
156 { "alias_port", &ng_parse_uint16_type }, \
157 { "remote_port", &ng_parse_uint16_type }, \
158 { "proto", &ng_parse_uint16_type }, \
159 { "lsnat", &ng_parse_uint16_type }, \
160 { "description", (desctype) }, \
164 /* Structure returned by NGM_NAT_LIST_REDIRECTS */
165 struct ng_nat_list_redirects {
166 uint32_t total_count;
167 struct ng_nat_listrdrs_entry redirects[];
170 /* Keep this in sync with the above structure definition */
171 #define NG_NAT_LIST_REDIRECTS_TYPE_INFO(redirtype) { \
172 { "total_count", &ng_parse_uint32_type }, \
173 { "redirects", (redirtype) }, \
177 /* Structure returned by NGM_NAT_LIBALIAS_INFO */
178 struct ng_nat_libalias_info {
179 uint32_t icmpLinkCount;
180 uint32_t udpLinkCount;
181 uint32_t tcpLinkCount;
182 uint32_t sctpLinkCount;
183 uint32_t pptpLinkCount;
184 uint32_t protoLinkCount;
185 uint32_t fragmentIdLinkCount;
186 uint32_t fragmentPtrLinkCount;
190 /* Keep this in sync with the above structure definition */
191 #define NG_NAT_LIBALIAS_INFO { \
192 { "icmpLinkCount", &ng_parse_uint32_type }, \
193 { "udpLinkCount", &ng_parse_uint32_type }, \
194 { "tcpLinkCount", &ng_parse_uint32_type }, \
195 { "sctpLinkCount", &ng_parse_uint32_type }, \
196 { "pptpLinkCount", &ng_parse_uint32_type }, \
197 { "protoLinkCount", &ng_parse_uint32_type }, \
198 { "fragmentIdLinkCount", &ng_parse_uint32_type }, \
199 { "fragmentPtrLinkCount", &ng_parse_uint32_type }, \
200 { "sockCount", &ng_parse_uint32_type }, \
205 NGM_NAT_SET_IPADDR = 1,
208 NGM_NAT_REDIRECT_PORT,
209 NGM_NAT_REDIRECT_ADDR,
210 NGM_NAT_REDIRECT_PROTO,
211 NGM_NAT_REDIRECT_DYNAMIC,
212 NGM_NAT_REDIRECT_DELETE,
214 NGM_NAT_LIST_REDIRECTS,
216 NGM_NAT_LIBALIAS_INFO,