1 /*- 2 * Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 13 * 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 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/netgraph/ng_nat.h,v 1.4 2008/03/04 11:10:54 mav Exp $ 27 * $DragonFly: src/sys/netgraph7/ng_nat.h,v 1.2 2008/06/26 23:05:35 dillon Exp $ 28 */ 29 30 #define NG_NAT_NODE_TYPE "nat" 31 #define NGM_NAT_COOKIE 1107718711 32 33 #define NG_NAT_HOOK_IN "in" 34 #define NG_NAT_HOOK_OUT "out" 35 36 /* Arguments for NGM_NAT_SET_MODE message */ 37 struct ng_nat_mode { 38 uint32_t flags; 39 uint32_t mask; 40 }; 41 42 /* Keep this in sync with the above structure definition */ 43 #define NG_NAT_MODE_INFO { \ 44 { "flags", &ng_parse_uint32_type }, \ 45 { "mask", &ng_parse_uint32_type }, \ 46 { NULL } \ 47 } 48 49 #define NG_NAT_LOG 0x01 50 #define NG_NAT_DENY_INCOMING 0x02 51 #define NG_NAT_SAME_PORTS 0x04 52 #define NG_NAT_UNREGISTERED_ONLY 0x10 53 #define NG_NAT_RESET_ON_ADDR_CHANGE 0x20 54 #define NG_NAT_PROXY_ONLY 0x40 55 #define NG_NAT_REVERSE 0x80 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 */ 61 struct 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 */ 86 struct 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 */ 101 struct 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 */ 120 struct 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 */ 135 struct 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 */ 164 struct 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 enum { 177 NGM_NAT_SET_IPADDR = 1, 178 NGM_NAT_SET_MODE, 179 NGM_NAT_SET_TARGET, 180 NGM_NAT_REDIRECT_PORT, 181 NGM_NAT_REDIRECT_ADDR, 182 NGM_NAT_REDIRECT_PROTO, 183 NGM_NAT_REDIRECT_DYNAMIC, 184 NGM_NAT_REDIRECT_DELETE, 185 NGM_NAT_ADD_SERVER, 186 NGM_NAT_LIST_REDIRECTS, 187 NGM_NAT_PROXY_RULE, 188 }; 189