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 * $FreeBSD$ 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 */ 36 struct 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 56 #define NG_NAT_DESC_LENGTH 64 57 #define NG_NAT_REDIRPROTO_ADDR (IPPROTO_MAX + 3) /* LibAlias' LINK_ADDR, also unused in in.h */ 58 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; 64 uint16_t local_port; 65 uint16_t alias_port; 66 uint16_t remote_port; 67 uint8_t proto; 68 char description[NG_NAT_DESC_LENGTH]; 69 }; 70 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) }, \ 81 { NULL } \ 82 } 83 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]; 89 }; 90 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) }, \ 96 { NULL } \ 97 } 98 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; 104 uint8_t proto; 105 char description[NG_NAT_DESC_LENGTH]; 106 }; 107 108 /* 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) }, \ 115 { NULL } \ 116 } 117 118 /* Arguments for NGM_NAT_ADD_SERVER message */ 119 struct ng_nat_add_server { 120 uint32_t id; 121 struct in_addr addr; 122 uint16_t port; 123 }; 124 125 /* 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 }, \ 130 { NULL } \ 131 } 132 133 /* 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; 139 uint16_t local_port; 140 uint16_t alias_port; 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]; 145 }; 146 147 /* 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) }, \ 159 { NULL } \ 160 } 161 162 /* 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[]; 166 }; 167 168 /* 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) }, \ 172 { NULL } \ 173 } 174 175 /* 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; 185 uint32_t sockCount; 186 }; 187 188 /* 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 }, \ 199 { NULL } \ 200 } 201 202 enum { 203 NGM_NAT_SET_IPADDR = 1, 204 NGM_NAT_SET_MODE, 205 NGM_NAT_SET_TARGET, 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, 211 NGM_NAT_ADD_SERVER, 212 NGM_NAT_LIST_REDIRECTS, 213 NGM_NAT_PROXY_RULE, 214 NGM_NAT_LIBALIAS_INFO, 215 }; 216