/* $OpenBSD: tables.c,v 1.4 2004/05/04 20:28:40 deraadt Exp $ */ /* Tables of information... */ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1995, 1996 The Internet Software Consortium. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of The Internet Software Consortium nor the names * of its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * This software has been written for the Internet Software Consortium * by Ted Lemon in cooperation with Vixie * Enterprises. To learn more about the Internet Software Consortium, * see ``http://www.vix.com/isc''. To learn more about Vixie * Enterprises, see ``http://www.vix.com''. */ #include __FBSDID("$FreeBSD$"); #include "dhcpd.h" /* * DHCP Option names, formats and codes, from RFC1533. * * Format codes: * * e - end of data * I - IP address * l - 32-bit signed integer * L - 32-bit unsigned integer * s - 16-bit signed integer * S - 16-bit unsigned integer * b - 8-bit signed integer * B - 8-bit unsigned integer * t - ASCII text * f - flag (true or false) * A - array of whatever precedes (e.g., IA means array of IP addresses) */ struct universe dhcp_universe; struct option dhcp_options[256] = { { "pad", "", &dhcp_universe, 0 }, { "subnet-mask", "I", &dhcp_universe, 1 }, { "time-offset", "l", &dhcp_universe, 2 }, { "routers", "IA", &dhcp_universe, 3 }, { "time-servers", "IA", &dhcp_universe, 4 }, { "ien116-name-servers", "IA", &dhcp_universe, 5 }, { "domain-name-servers", "IA", &dhcp_universe, 6 }, { "log-servers", "IA", &dhcp_universe, 7 }, { "cookie-servers", "IA", &dhcp_universe, 8 }, { "lpr-servers", "IA", &dhcp_universe, 9 }, { "impress-servers", "IA", &dhcp_universe, 10 }, { "resource-location-servers", "IA", &dhcp_universe, 11 }, { "host-name", "t", &dhcp_universe, 12 }, { "boot-size", "S", &dhcp_universe, 13 }, { "merit-dump", "t", &dhcp_universe, 14 }, { "domain-name", "t", &dhcp_universe, 15 }, { "swap-server", "I", &dhcp_universe, 16 }, { "root-path", "t", &dhcp_universe, 17 }, { "extensions-path", "t", &dhcp_universe, 18 }, { "ip-forwarding", "f", &dhcp_universe, 19 }, { "non-local-source-routing", "f", &dhcp_universe, 20 }, { "policy-filter", "IIA", &dhcp_universe, 21 }, { "max-dgram-reassembly", "S", &dhcp_universe, 22 }, { "default-ip-ttl", "B", &dhcp_universe, 23 }, { "path-mtu-aging-timeout", "L", &dhcp_universe, 24 }, { "path-mtu-plateau-table", "SA", &dhcp_universe, 25 }, { "interface-mtu", "S", &dhcp_universe, 26 }, { "all-subnets-local", "f", &dhcp_universe, 27 }, { "broadcast-address", "I", &dhcp_universe, 28 }, { "perform-mask-discovery", "f", &dhcp_universe, 29 }, { "mask-supplier", "f", &dhcp_universe, 30 }, { "router-discovery", "f", &dhcp_universe, 31 }, { "router-solicitation-address", "I", &dhcp_universe, 32 }, { "static-routes", "IIA", &dhcp_universe, 33 }, { "trailer-encapsulation", "f", &dhcp_universe, 34 }, { "arp-cache-timeout", "L", &dhcp_universe, 35 }, { "ieee802-3-encapsulation", "f", &dhcp_universe, 36 }, { "default-tcp-ttl", "B", &dhcp_universe, 37 }, { "tcp-keepalive-interval", "L", &dhcp_universe, 38 }, { "tcp-keepalive-garbage", "f", &dhcp_universe, 39 }, { "nis-domain", "t", &dhcp_universe, 40 }, { "nis-servers", "IA", &dhcp_universe, 41 }, { "ntp-servers", "IA", &dhcp_universe, 42 }, { "vendor-encapsulated-options", "X", &dhcp_universe, 43 }, { "netbios-name-servers", "IA", &dhcp_universe, 44 }, { "netbios-dd-server", "IA", &dhcp_universe, 45 }, { "netbios-node-type", "B", &dhcp_universe, 46 }, { "netbios-scope", "t", &dhcp_universe, 47 }, { "font-servers", "IA", &dhcp_universe, 48 }, { "x-display-manager", "IA", &dhcp_universe, 49 }, { "dhcp-requested-address", "I", &dhcp_universe, 50 }, { "dhcp-lease-time", "L", &dhcp_universe, 51 }, { "dhcp-option-overload", "B", &dhcp_universe, 52 }, { "dhcp-message-type", "B", &dhcp_universe, 53 }, { "dhcp-server-identifier", "I", &dhcp_universe, 54 }, { "dhcp-parameter-request-list", "BA", &dhcp_universe, 55 }, { "dhcp-message", "t", &dhcp_universe, 56 }, { "dhcp-max-message-size", "S", &dhcp_universe, 57 }, { "dhcp-renewal-time", "L", &dhcp_universe, 58 }, { "dhcp-rebinding-time", "L", &dhcp_universe, 59 }, { "dhcp-class-identifier", "t", &dhcp_universe, 60 }, { "dhcp-client-identifier", "X", &dhcp_universe, 61 }, { "option-62", "X", &dhcp_universe, 62 }, { "option-63", "X", &dhcp_universe, 63 }, { "nisplus-domain", "t", &dhcp_universe, 64 }, { "nisplus-servers", "IA", &dhcp_universe, 65 }, { "tftp-server-name", "t", &dhcp_universe, 66 }, { "bootfile-name", "t", &dhcp_universe, 67 }, { "mobile-ip-home-agent", "IA", &dhcp_universe, 68 }, { "smtp-server", "IA", &dhcp_universe, 69 }, { "pop-server", "IA", &dhcp_universe, 70 }, { "nntp-server", "IA", &dhcp_universe, 71 }, { "www-server", "IA", &dhcp_universe, 72 }, { "finger-server", "IA", &dhcp_universe, 73 }, { "irc-server", "IA", &dhcp_universe, 74 }, { "streettalk-server", "IA", &dhcp_universe, 75 }, { "streettalk-directory-assistance-server", "IA", &dhcp_universe, 76 }, { "user-class", "t", &dhcp_universe, 77 }, { "option-78", "X", &dhcp_universe, 78 }, { "option-79", "X", &dhcp_universe, 79 }, { "option-80", "X", &dhcp_universe, 80 }, { "option-81", "X", &dhcp_universe, 81 }, { "option-82", "X", &dhcp_universe, 82 }, { "option-83", "X", &dhcp_universe, 83 }, { "option-84", "X", &dhcp_universe, 84 }, { "nds-servers", "IA", &dhcp_universe, 85 }, { "nds-tree-name", "X", &dhcp_universe, 86 }, { "nds-context", "X", &dhcp_universe, 87 }, { "option-88", "X", &dhcp_universe, 88 }, { "option-89", "X", &dhcp_universe, 89 }, { "option-90", "X", &dhcp_universe, 90 }, { "option-91", "X", &dhcp_universe, 91 }, { "option-92", "X", &dhcp_universe, 92 }, { "option-93", "X", &dhcp_universe, 93 }, { "option-94", "X", &dhcp_universe, 94 }, { "option-95", "X", &dhcp_universe, 95 }, { "option-96", "X", &dhcp_universe, 96 }, { "option-97", "X", &dhcp_universe, 97 }, { "option-98", "X", &dhcp_universe, 98 }, { "option-99", "X", &dhcp_universe, 99 }, { "option-100", "X", &dhcp_universe, 100 }, { "option-101", "X", &dhcp_universe, 101 }, { "option-102", "X", &dhcp_universe, 102 }, { "option-103", "X", &dhcp_universe, 103 }, { "option-104", "X", &dhcp_universe, 104 }, { "option-105", "X", &dhcp_universe, 105 }, { "option-106", "X", &dhcp_universe, 106 }, { "option-107", "X", &dhcp_universe, 107 }, { "option-108", "X", &dhcp_universe, 108 }, { "option-109", "X", &dhcp_universe, 109 }, { "option-110", "X", &dhcp_universe, 110 }, { "option-111", "X", &dhcp_universe, 111 }, { "option-112", "X", &dhcp_universe, 112 }, { "option-113", "X", &dhcp_universe, 113 }, { "url", "t", &dhcp_universe, 114 }, { "option-115", "X", &dhcp_universe, 115 }, { "option-116", "X", &dhcp_universe, 116 }, { "option-117", "X", &dhcp_universe, 117 }, { "option-118", "X", &dhcp_universe, 118 }, { "domain-search", "t", &dhcp_universe, 119 }, { "option-120", "X", &dhcp_universe, 120 }, { "classless-routes", "BA", &dhcp_universe, 121 }, { "option-122", "X", &dhcp_universe, 122 }, { "option-123", "X", &dhcp_universe, 123 }, { "option-124", "X", &dhcp_universe, 124 }, { "option-125", "X", &dhcp_universe, 125 }, { "option-126", "X", &dhcp_universe, 126 }, { "option-127", "X", &dhcp_universe, 127 }, { "option-128", "X", &dhcp_universe, 128 }, { "option-129", "X", &dhcp_universe, 129 }, { "option-130", "X", &dhcp_universe, 130 }, { "option-131", "X", &dhcp_universe, 131 }, { "option-132", "X", &dhcp_universe, 132 }, { "option-133", "X", &dhcp_universe, 133 }, { "option-134", "X", &dhcp_universe, 134 }, { "option-135", "X", &dhcp_universe, 135 }, { "option-136", "X", &dhcp_universe, 136 }, { "option-137", "X", &dhcp_universe, 137 }, { "option-138", "X", &dhcp_universe, 138 }, { "option-139", "X", &dhcp_universe, 139 }, { "option-140", "X", &dhcp_universe, 140 }, { "option-141", "X", &dhcp_universe, 141 }, { "option-142", "X", &dhcp_universe, 142 }, { "option-143", "X", &dhcp_universe, 143 }, { "option-144", "X", &dhcp_universe, 144 }, { "option-145", "X", &dhcp_universe, 145 }, { "option-146", "X", &dhcp_universe, 146 }, { "option-147", "X", &dhcp_universe, 147 }, { "option-148", "X", &dhcp_universe, 148 }, { "option-149", "X", &dhcp_universe, 149 }, { "option-150", "X", &dhcp_universe, 150 }, { "option-151", "X", &dhcp_universe, 151 }, { "option-152", "X", &dhcp_universe, 152 }, { "option-153", "X", &dhcp_universe, 153 }, { "option-154", "X", &dhcp_universe, 154 }, { "option-155", "X", &dhcp_universe, 155 }, { "option-156", "X", &dhcp_universe, 156 }, { "option-157", "X", &dhcp_universe, 157 }, { "option-158", "X", &dhcp_universe, 158 }, { "option-159", "X", &dhcp_universe, 159 }, { "option-160", "X", &dhcp_universe, 160 }, { "option-161", "X", &dhcp_universe, 161 }, { "option-162", "X", &dhcp_universe, 162 }, { "option-163", "X", &dhcp_universe, 163 }, { "option-164", "X", &dhcp_universe, 164 }, { "option-165", "X", &dhcp_universe, 165 }, { "option-166", "X", &dhcp_universe, 166 }, { "option-167", "X", &dhcp_universe, 167 }, { "option-168", "X", &dhcp_universe, 168 }, { "option-169", "X", &dhcp_universe, 169 }, { "option-170", "X", &dhcp_universe, 170 }, { "option-171", "X", &dhcp_universe, 171 }, { "option-172", "X", &dhcp_universe, 172 }, { "option-173", "X", &dhcp_universe, 173 }, { "option-174", "X", &dhcp_universe, 174 }, { "option-175", "X", &dhcp_universe, 175 }, { "option-176", "X", &dhcp_universe, 176 }, { "option-177", "X", &dhcp_universe, 177 }, { "option-178", "X", &dhcp_universe, 178 }, { "option-179", "X", &dhcp_universe, 179 }, { "option-180", "X", &dhcp_universe, 180 }, { "option-181", "X", &dhcp_universe, 181 }, { "option-182", "X", &dhcp_universe, 182 }, { "option-183", "X", &dhcp_universe, 183 }, { "option-184", "X", &dhcp_universe, 184 }, { "option-185", "X", &dhcp_universe, 185 }, { "option-186", "X", &dhcp_universe, 186 }, { "option-187", "X", &dhcp_universe, 187 }, { "option-188", "X", &dhcp_universe, 188 }, { "option-189", "X", &dhcp_universe, 189 }, { "option-190", "X", &dhcp_universe, 190 }, { "option-191", "X", &dhcp_universe, 191 }, { "option-192", "X", &dhcp_universe, 192 }, { "option-193", "X", &dhcp_universe, 193 }, { "option-194", "X", &dhcp_universe, 194 }, { "option-195", "X", &dhcp_universe, 195 }, { "option-196", "X", &dhcp_universe, 196 }, { "option-197", "X", &dhcp_universe, 197 }, { "option-198", "X", &dhcp_universe, 198 }, { "option-199", "X", &dhcp_universe, 199 }, { "option-200", "X", &dhcp_universe, 200 }, { "option-201", "X", &dhcp_universe, 201 }, { "option-202", "X", &dhcp_universe, 202 }, { "option-203", "X", &dhcp_universe, 203 }, { "option-204", "X", &dhcp_universe, 204 }, { "option-205", "X", &dhcp_universe, 205 }, { "option-206", "X", &dhcp_universe, 206 }, { "option-207", "X", &dhcp_universe, 207 }, { "option-208", "X", &dhcp_universe, 208 }, { "option-209", "X", &dhcp_universe, 209 }, { "option-210", "X", &dhcp_universe, 210 }, { "option-211", "X", &dhcp_universe, 211 }, { "option-212", "X", &dhcp_universe, 212 }, { "option-213", "X", &dhcp_universe, 213 }, { "option-214", "X", &dhcp_universe, 214 }, { "option-215", "X", &dhcp_universe, 215 }, { "option-216", "X", &dhcp_universe, 216 }, { "option-217", "X", &dhcp_universe, 217 }, { "option-218", "X", &dhcp_universe, 218 }, { "option-219", "X", &dhcp_universe, 219 }, { "option-220", "X", &dhcp_universe, 220 }, { "option-221", "X", &dhcp_universe, 221 }, { "option-222", "X", &dhcp_universe, 222 }, { "option-223", "X", &dhcp_universe, 223 }, { "option-224", "X", &dhcp_universe, 224 }, { "option-225", "X", &dhcp_universe, 225 }, { "option-226", "X", &dhcp_universe, 226 }, { "option-227", "X", &dhcp_universe, 227 }, { "option-228", "X", &dhcp_universe, 228 }, { "option-229", "X", &dhcp_universe, 229 }, { "option-230", "X", &dhcp_universe, 230 }, { "option-231", "X", &dhcp_universe, 231 }, { "option-232", "X", &dhcp_universe, 232 }, { "option-233", "X", &dhcp_universe, 233 }, { "option-234", "X", &dhcp_universe, 234 }, { "option-235", "X", &dhcp_universe, 235 }, { "option-236", "X", &dhcp_universe, 236 }, { "option-237", "X", &dhcp_universe, 237 }, { "option-238", "X", &dhcp_universe, 238 }, { "option-239", "X", &dhcp_universe, 239 }, { "option-240", "X", &dhcp_universe, 240 }, { "option-241", "X", &dhcp_universe, 241 }, { "option-242", "X", &dhcp_universe, 242 }, { "option-243", "X", &dhcp_universe, 243 }, { "option-244", "X", &dhcp_universe, 244 }, { "option-245", "X", &dhcp_universe, 245 }, { "option-246", "X", &dhcp_universe, 246 }, { "option-247", "X", &dhcp_universe, 247 }, { "option-248", "X", &dhcp_universe, 248 }, { "option-249", "X", &dhcp_universe, 249 }, { "option-250", "X", &dhcp_universe, 250 }, { "option-251", "X", &dhcp_universe, 251 }, { "option-252", "X", &dhcp_universe, 252 }, { "option-253", "X", &dhcp_universe, 253 }, { "option-254", "X", &dhcp_universe, 254 }, { "option-end", "e", &dhcp_universe, 255 }, }; /* * Default dhcp option priority list (this is ad hoc and should not be * mistaken for a carefully crafted and optimized list). */ unsigned char dhcp_option_default_priority_list[] = { DHO_DHCP_REQUESTED_ADDRESS, DHO_DHCP_OPTION_OVERLOAD, DHO_DHCP_MAX_MESSAGE_SIZE, DHO_DHCP_RENEWAL_TIME, DHO_DHCP_REBINDING_TIME, DHO_DHCP_CLASS_IDENTIFIER, DHO_DHCP_CLIENT_IDENTIFIER, DHO_SUBNET_MASK, DHO_TIME_OFFSET, DHO_CLASSLESS_ROUTES, DHO_ROUTERS, DHO_TIME_SERVERS, DHO_NAME_SERVERS, DHO_DOMAIN_NAME_SERVERS, DHO_HOST_NAME, DHO_LOG_SERVERS, DHO_COOKIE_SERVERS, DHO_LPR_SERVERS, DHO_IMPRESS_SERVERS, DHO_RESOURCE_LOCATION_SERVERS, DHO_HOST_NAME, DHO_BOOT_SIZE, DHO_MERIT_DUMP, DHO_DOMAIN_NAME, DHO_SWAP_SERVER, DHO_ROOT_PATH, DHO_EXTENSIONS_PATH, DHO_IP_FORWARDING, DHO_NON_LOCAL_SOURCE_ROUTING, DHO_POLICY_FILTER, DHO_MAX_DGRAM_REASSEMBLY, DHO_DEFAULT_IP_TTL, DHO_PATH_MTU_AGING_TIMEOUT, DHO_PATH_MTU_PLATEAU_TABLE, DHO_INTERFACE_MTU, DHO_ALL_SUBNETS_LOCAL, DHO_BROADCAST_ADDRESS, DHO_PERFORM_MASK_DISCOVERY, DHO_MASK_SUPPLIER, DHO_ROUTER_DISCOVERY, DHO_ROUTER_SOLICITATION_ADDRESS, DHO_STATIC_ROUTES, DHO_TRAILER_ENCAPSULATION, DHO_ARP_CACHE_TIMEOUT, DHO_IEEE802_3_ENCAPSULATION, DHO_DEFAULT_TCP_TTL, DHO_TCP_KEEPALIVE_INTERVAL, DHO_TCP_KEEPALIVE_GARBAGE, DHO_NIS_DOMAIN, DHO_NIS_SERVERS, DHO_NTP_SERVERS, DHO_VENDOR_ENCAPSULATED_OPTIONS, DHO_NETBIOS_NAME_SERVERS, DHO_NETBIOS_DD_SERVER, DHO_NETBIOS_NODE_TYPE, DHO_NETBIOS_SCOPE, DHO_FONT_SERVERS, DHO_X_DISPLAY_MANAGER, DHO_DHCP_PARAMETER_REQUEST_LIST, DHO_NISPLUS_DOMAIN, DHO_NISPLUS_SERVERS, DHO_TFTP_SERVER_NAME, DHO_BOOTFILE_NAME, DHO_MOBILE_IP_HOME_AGENT, DHO_SMTP_SERVER, DHO_POP_SERVER, DHO_NNTP_SERVER, DHO_WWW_SERVER, DHO_FINGER_SERVER, DHO_IRC_SERVER, DHO_STREETTALK_SERVER, DHO_STREETTALK_DA_SERVER, DHO_DHCP_USER_CLASS_ID, DHO_DOMAIN_SEARCH, DHO_URL, /* Presently-undefined options... */ 62, 63, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 115, 116, 117, 118, 120, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, }; int sizeof_dhcp_option_default_priority_list = sizeof(dhcp_option_default_priority_list); struct hash_table universe_hash; void initialize_universes(void) { int i; dhcp_universe.name = "dhcp"; dhcp_universe.hash = new_hash(); if (!dhcp_universe.hash) error("Can't allocate dhcp option hash table."); for (i = 0; i < 256; i++) { dhcp_universe.options[i] = &dhcp_options[i]; add_hash(dhcp_universe.hash, (const unsigned char *)dhcp_options[i].name, 0, (unsigned char *)&dhcp_options[i]); } universe_hash.hash_count = DEFAULT_HASH_SIZE; add_hash(&universe_hash, (const unsigned char *)dhcp_universe.name, 0, (unsigned char *)&dhcp_universe); }