d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
3337af98b4
freebsd-skq/sbin/dhclient/tables.c
Ed Maste 2fcc737008 Implement RFC3442, the Classless Static Route option. 
The original DHCP specification includes a route option but it supports
only class-based routes.  RFC3442 adds support for specifying the netmask
width for each static route.  A variable length encoding is used to minimize
the size of this option.

PR:             bin/99534
Submitted by:   Andrey V. Elsukov <bu7cher@yandex.ru>
Reviewed by:    brooks
2007-02-09 17:50:26 +00:00

435 lines
18 KiB
C
Raw Blame History

/* $OpenBSD: tables.c,v 1.4 2004/05/04 20:28:40 deraadt Exp $ */
/* Tables of information... */
/*
* 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 <mellon@fugue.com> 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 <sys/cdefs.h>
__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 },
{ "option-114", "X", &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 },
{ "option-119", "X", &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,
/* Presently-undefined options... */
62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76,
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, 114, 115, 116, 117, 118,
119, 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,
(unsigned char *)dhcp_options[i].name, 0,
(unsigned char *)&dhcp_options[i]);
}
universe_hash.hash_count = DEFAULT_HASH_SIZE;
add_hash(&universe_hash,
(unsigned char *)dhcp_universe.name, 0,
(unsigned char *)&dhcp_universe);
}
Reference in New Issue View Git Blame Copy Permalink