1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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. 15 * 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 26 * SUCH DAMAGE. 27 */ 28 29#define NG_NAT_NODE_TYPE "nat" 30#define NGM_NAT_COOKIE 1107718711 31 32#define NG_NAT_HOOK_IN "in" 33#define NG_NAT_HOOK_OUT "out" 34 35/* Arguments for NGM_NAT_SET_MODE message */ 36struct ng_nat_mode { 37 uint32_t flags; 38 uint32_t mask; 39}; 40 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 }, \ 45 { NULL } \ 46} 47 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 55#define NG_NAT_UNREGISTERED_CGN 0x100 56 57#define NG_NAT_DESC_LENGTH 64 58#define NG_NAT_REDIRPROTO_ADDR (IPPROTO_MAX + 3) /* LibAlias' LINK_ADDR, also unused in in.h */ 59 60/* Arguments for NGM_NAT_REDIRECT_PORT message */ 61struct ng_nat_redirect_port { 62 struct in_addr local_addr; 63 struct in_addr alias_addr; 64 struct in_addr remote_addr; 65 uint16_t local_port; 66 uint16_t alias_port; 67 uint16_t remote_port; 68 uint8_t proto; 69 char description[NG_NAT_DESC_LENGTH]; 70}; 71 72/* Keep this in sync with the above structure definition */ 73#define NG_NAT_REDIRECT_PORT_TYPE_INFO(desctype) { \ 74 { "local_addr", &ng_parse_ipaddr_type }, \ 75 { "alias_addr", &ng_parse_ipaddr_type }, \ 76 { "remote_addr", &ng_parse_ipaddr_type }, \ 77 { "local_port", &ng_parse_uint16_type }, \ 78 { "alias_port", &ng_parse_uint16_type }, \ 79 { "remote_port", &ng_parse_uint16_type }, \ 80 { "proto", &ng_parse_uint8_type }, \ 81 { "description", (desctype) }, \ 82 { NULL } \ 83} 84 85/* Arguments for NGM_NAT_REDIRECT_ADDR message */ 86struct ng_nat_redirect_addr { 87 struct in_addr local_addr; 88 struct in_addr alias_addr; 89 char description[NG_NAT_DESC_LENGTH]; 90}; 91 92/* Keep this in sync with the above structure definition */ 93#define NG_NAT_REDIRECT_ADDR_TYPE_INFO(desctype) { \ 94 { "local_addr", &ng_parse_ipaddr_type }, \ 95 { "alias_addr", &ng_parse_ipaddr_type }, \ 96 { "description", (desctype) }, \ 97 { NULL } \ 98} 99 100/* Arguments for NGM_NAT_REDIRECT_PROTO message */ 101struct ng_nat_redirect_proto { 102 struct in_addr local_addr; 103 struct in_addr alias_addr; 104 struct in_addr remote_addr; 105 uint8_t proto; 106 char description[NG_NAT_DESC_LENGTH]; 107}; 108 109/* Keep this in sync with the above structure definition */ 110#define NG_NAT_REDIRECT_PROTO_TYPE_INFO(desctype) { \ 111 { "local_addr", &ng_parse_ipaddr_type }, \ 112 { "alias_addr", &ng_parse_ipaddr_type }, \ 113 { "remote_addr", &ng_parse_ipaddr_type }, \ 114 { "proto", &ng_parse_uint8_type }, \ 115 { "description", (desctype) }, \ 116 { NULL } \ 117} 118 119/* Arguments for NGM_NAT_ADD_SERVER message */ 120struct ng_nat_add_server { 121 uint32_t id; 122 struct in_addr addr; 123 uint16_t port; 124}; 125 126/* Keep this in sync with the above structure definition */ 127#define NG_NAT_ADD_SERVER_TYPE_INFO { \ 128 { "id", &ng_parse_uint32_type }, \ 129 { "addr", &ng_parse_ipaddr_type }, \ 130 { "port", &ng_parse_uint16_type }, \ 131 { NULL } \ 132} 133 134/* List entry of array returned in NGM_NAT_LIST_REDIRECTS message */ 135struct ng_nat_listrdrs_entry { 136 uint32_t id; /* Anything except zero */ 137 struct in_addr local_addr; 138 struct in_addr alias_addr; 139 struct in_addr remote_addr; 140 uint16_t local_port; 141 uint16_t alias_port; 142 uint16_t remote_port; 143 uint16_t proto; /* Valid proto or NG_NAT_REDIRPROTO_ADDR */ 144 uint16_t lsnat; /* LSNAT servers count */ 145 char description[NG_NAT_DESC_LENGTH]; 146}; 147 148/* Keep this in sync with the above structure definition */ 149#define NG_NAT_LISTRDRS_ENTRY_TYPE_INFO(desctype) { \ 150 { "id", &ng_parse_uint32_type }, \ 151 { "local_addr", &ng_parse_ipaddr_type }, \ 152 { "alias_addr", &ng_parse_ipaddr_type }, \ 153 { "remote_addr", &ng_parse_ipaddr_type }, \ 154 { "local_port", &ng_parse_uint16_type }, \ 155 { "alias_port", &ng_parse_uint16_type }, \ 156 { "remote_port", &ng_parse_uint16_type }, \ 157 { "proto", &ng_parse_uint16_type }, \ 158 { "lsnat", &ng_parse_uint16_type }, \ 159 { "description", (desctype) }, \ 160 { NULL } \ 161} 162 163/* Structure returned by NGM_NAT_LIST_REDIRECTS */ 164struct ng_nat_list_redirects { 165 uint32_t total_count; 166 struct ng_nat_listrdrs_entry redirects[]; 167}; 168 169/* Keep this in sync with the above structure definition */ 170#define NG_NAT_LIST_REDIRECTS_TYPE_INFO(redirtype) { \ 171 { "total_count", &ng_parse_uint32_type }, \ 172 { "redirects", (redirtype) }, \ 173 { NULL } \ 174} 175 176/* Structure returned by NGM_NAT_LIBALIAS_INFO */ 177struct ng_nat_libalias_info { 178 uint32_t icmpLinkCount; 179 uint32_t udpLinkCount; 180 uint32_t tcpLinkCount; 181 uint32_t sctpLinkCount; 182 uint32_t pptpLinkCount; 183 uint32_t protoLinkCount; 184 uint32_t fragmentIdLinkCount; 185 uint32_t fragmentPtrLinkCount; 186 uint32_t sockCount; 187}; 188 189/* Keep this in sync with the above structure definition */ 190#define NG_NAT_LIBALIAS_INFO { \ 191 { "icmpLinkCount", &ng_parse_uint32_type }, \ 192 { "udpLinkCount", &ng_parse_uint32_type }, \ 193 { "tcpLinkCount", &ng_parse_uint32_type }, \ 194 { "sctpLinkCount", &ng_parse_uint32_type }, \ 195 { "pptpLinkCount", &ng_parse_uint32_type }, \ 196 { "protoLinkCount", &ng_parse_uint32_type }, \ 197 { "fragmentIdLinkCount", &ng_parse_uint32_type }, \ 198 { "fragmentPtrLinkCount", &ng_parse_uint32_type }, \ 199 { "sockCount", &ng_parse_uint32_type }, \ 200 { NULL } \ 201} 202 203enum { 204 NGM_NAT_SET_IPADDR = 1, 205 NGM_NAT_SET_MODE, 206 NGM_NAT_SET_TARGET, 207 NGM_NAT_REDIRECT_PORT, 208 NGM_NAT_REDIRECT_ADDR, 209 NGM_NAT_REDIRECT_PROTO, 210 NGM_NAT_REDIRECT_DYNAMIC, 211 NGM_NAT_REDIRECT_DELETE, 212 NGM_NAT_ADD_SERVER, 213 NGM_NAT_LIST_REDIRECTS, 214 NGM_NAT_PROXY_RULE, 215 NGM_NAT_LIBALIAS_INFO, 216 NGM_NAT_SET_DLT, 217 NGM_NAT_GET_DLT, 218}; 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