2 * Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #define NG_NAT_NODE_TYPE "nat"
30 #define NGM_NAT_COOKIE 1107718711
32 #define NG_NAT_HOOK_IN "in"
33 #define NG_NAT_HOOK_OUT "out"
35 /* Arguments for NGM_NAT_SET_MODE message */
41 /* Keep this in sync with the above structure definition */
42 #define NG_NAT_MODE_INFO { \
43 { "flags", &ng_parse_uint32_type }, \
44 { "mask", &ng_parse_uint32_type }, \
48 #define NG_NAT_LOG 0x01
49 #define NG_NAT_DENY_INCOMING 0x02
50 #define NG_NAT_SAME_PORTS 0x04
51 #define NG_NAT_UNREGISTERED_ONLY 0x10
52 #define NG_NAT_RESET_ON_ADDR_CHANGE 0x20
53 #define NG_NAT_PROXY_ONLY 0x40
54 #define NG_NAT_REVERSE 0x80
56 #define NG_NAT_DESC_LENGTH 64
57 #define NG_NAT_REDIRPROTO_ADDR (IPPROTO_MAX + 3) /* LibAlias' LINK_ADDR, also unused in in.h */
59 /* Arguments for NGM_NAT_REDIRECT_PORT message */
60 struct ng_nat_redirect_port
{
61 struct in_addr local_addr
;
62 struct in_addr alias_addr
;
63 struct in_addr remote_addr
;
68 char description
[NG_NAT_DESC_LENGTH
];
71 /* Keep this in sync with the above structure definition */
72 #define NG_NAT_REDIRECT_PORT_TYPE_INFO(desctype) { \
73 { "local_addr", &ng_parse_ipaddr_type }, \
74 { "alias_addr", &ng_parse_ipaddr_type }, \
75 { "remote_addr", &ng_parse_ipaddr_type }, \
76 { "local_port", &ng_parse_uint16_type }, \
77 { "alias_port", &ng_parse_uint16_type }, \
78 { "remote_port", &ng_parse_uint16_type }, \
79 { "proto", &ng_parse_uint8_type }, \
80 { "description", (desctype) }, \
84 /* Arguments for NGM_NAT_REDIRECT_ADDR message */
85 struct ng_nat_redirect_addr
{
86 struct in_addr local_addr
;
87 struct in_addr alias_addr
;
88 char description
[NG_NAT_DESC_LENGTH
];
91 /* Keep this in sync with the above structure definition */
92 #define NG_NAT_REDIRECT_ADDR_TYPE_INFO(desctype) { \
93 { "local_addr", &ng_parse_ipaddr_type }, \
94 { "alias_addr", &ng_parse_ipaddr_type }, \
95 { "description", (desctype) }, \
99 /* Arguments for NGM_NAT_REDIRECT_PROTO message */
100 struct ng_nat_redirect_proto
{
101 struct in_addr local_addr
;
102 struct in_addr alias_addr
;
103 struct in_addr remote_addr
;
105 char description
[NG_NAT_DESC_LENGTH
];
108 /* Keep this in sync with the above structure definition */
109 #define NG_NAT_REDIRECT_PROTO_TYPE_INFO(desctype) { \
110 { "local_addr", &ng_parse_ipaddr_type }, \
111 { "alias_addr", &ng_parse_ipaddr_type }, \
112 { "remote_addr", &ng_parse_ipaddr_type }, \
113 { "proto", &ng_parse_uint8_type }, \
114 { "description", (desctype) }, \
118 /* Arguments for NGM_NAT_ADD_SERVER message */
119 struct ng_nat_add_server
{
125 /* Keep this in sync with the above structure definition */
126 #define NG_NAT_ADD_SERVER_TYPE_INFO { \
127 { "id", &ng_parse_uint32_type }, \
128 { "addr", &ng_parse_ipaddr_type }, \
129 { "port", &ng_parse_uint16_type }, \
133 /* List entry of array returned in NGM_NAT_LIST_REDIRECTS message */
134 struct ng_nat_listrdrs_entry
{
135 uint32_t id
; /* Anything except zero */
136 struct in_addr local_addr
;
137 struct in_addr alias_addr
;
138 struct in_addr remote_addr
;
141 uint16_t remote_port
;
142 uint16_t proto
; /* Valid proto or NG_NAT_REDIRPROTO_ADDR */
143 uint16_t lsnat
; /* LSNAT servers count */
144 char description
[NG_NAT_DESC_LENGTH
];
147 /* Keep this in sync with the above structure definition */
148 #define NG_NAT_LISTRDRS_ENTRY_TYPE_INFO(desctype) { \
149 { "id", &ng_parse_uint32_type }, \
150 { "local_addr", &ng_parse_ipaddr_type }, \
151 { "alias_addr", &ng_parse_ipaddr_type }, \
152 { "remote_addr", &ng_parse_ipaddr_type }, \
153 { "local_port", &ng_parse_uint16_type }, \
154 { "alias_port", &ng_parse_uint16_type }, \
155 { "remote_port", &ng_parse_uint16_type }, \
156 { "proto", &ng_parse_uint16_type }, \
157 { "lsnat", &ng_parse_uint16_type }, \
158 { "description", (desctype) }, \
162 /* Structure returned by NGM_NAT_LIST_REDIRECTS */
163 struct ng_nat_list_redirects
{
164 uint32_t total_count
;
165 struct ng_nat_listrdrs_entry redirects
[];
168 /* Keep this in sync with the above structure definition */
169 #define NG_NAT_LIST_REDIRECTS_TYPE_INFO(redirtype) { \
170 { "total_count", &ng_parse_uint32_type }, \
171 { "redirects", (redirtype) }, \
175 /* Structure returned by NGM_NAT_LIBALIAS_INFO */
176 struct ng_nat_libalias_info
{
177 uint32_t icmpLinkCount
;
178 uint32_t udpLinkCount
;
179 uint32_t tcpLinkCount
;
180 uint32_t sctpLinkCount
;
181 uint32_t pptpLinkCount
;
182 uint32_t protoLinkCount
;
183 uint32_t fragmentIdLinkCount
;
184 uint32_t fragmentPtrLinkCount
;
188 /* Keep this in sync with the above structure definition */
189 #define NG_NAT_LIBALIAS_INFO { \
190 { "icmpLinkCount", &ng_parse_uint32_type }, \
191 { "udpLinkCount", &ng_parse_uint32_type }, \
192 { "tcpLinkCount", &ng_parse_uint32_type }, \
193 { "sctpLinkCount", &ng_parse_uint32_type }, \
194 { "pptpLinkCount", &ng_parse_uint32_type }, \
195 { "protoLinkCount", &ng_parse_uint32_type }, \
196 { "fragmentIdLinkCount", &ng_parse_uint32_type }, \
197 { "fragmentPtrLinkCount", &ng_parse_uint32_type }, \
198 { "sockCount", &ng_parse_uint32_type }, \
203 NGM_NAT_SET_IPADDR
= 1,
206 NGM_NAT_REDIRECT_PORT
,
207 NGM_NAT_REDIRECT_ADDR
,
208 NGM_NAT_REDIRECT_PROTO
,
209 NGM_NAT_REDIRECT_DYNAMIC
,
210 NGM_NAT_REDIRECT_DELETE
,
212 NGM_NAT_LIST_REDIRECTS
,
214 NGM_NAT_LIBALIAS_INFO
,