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[thirdparty/dhcp.git] / server / stables.c
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1/* stables.c
2
3 Tables of information only used by server... */
4
5/*
4d2eaafb 6 * Copyright (c) 2004-2007 by Internet Systems Consortium, Inc. ("ISC")
98311e4b 7 * Copyright (c) 1995-2003 by Internet Software Consortium
5020567a 8 *
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9 * Permission to use, copy, modify, and distribute this software for any
10 * purpose with or without fee is hereby granted, provided that the above
11 * copyright notice and this permission notice appear in all copies.
5020567a 12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
19 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
5020567a 20 *
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21 * Internet Systems Consortium, Inc.
22 * 950 Charter Street
23 * Redwood City, CA 94063
24 * <info@isc.org>
25 * http://www.isc.org/
49733f31 26 *
98311e4b 27 * This software has been written for Internet Systems Consortium
49733f31 28 * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
98311e4b 29 * To learn more about Internet Systems Consortium, see
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30 * ``http://www.isc.org/''. To learn more about Vixie Enterprises,
31 * see ``http://www.vix.com''. To learn more about Nominum, Inc., see
32 * ``http://www.nominum.com''.
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33 */
34
5020567a 35#include "dhcpd.h"
3af71c19 36#include <syslog.h>
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37
38#if defined (FAILOVER_PROTOCOL)
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39
40/* This is used to indicate some kind of failure when generating a
41 failover option. */
42failover_option_t null_failover_option = { 0, 0 };
3d8b4d91 43failover_option_t skip_failover_option = { 0, 0 };
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44
45/* Information about failover options, for printing, encoding
46 and decoding. */
d9eefc5d 47struct failover_option_info ft_options [] =
5020567a 48{
d9eefc5d 49 { 0, "unused", FT_UNDEF, 0, 0, 0 },
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50 { FTO_ADDRESSES_TRANSFERRED, "addresses-transferred", FT_UINT32, 1,
51 FM_OFFSET(addresses_transferred), FTB_ADDRESSES_TRANSFERRED },
52 { FTO_ASSIGNED_IP_ADDRESS, "assigned-IP-address", FT_IPADDR, 1,
53 FM_OFFSET(assigned_addr), FTB_ASSIGNED_IP_ADDRESS },
54 { FTO_BINDING_STATUS, "binding-status", FT_UINT8, 1,
55 FM_OFFSET(binding_status), FTB_BINDING_STATUS },
56 { FTO_CLIENT_IDENTIFIER, "client-identifier", FT_BYTES, 0,
57 FM_OFFSET(client_identifier), FTB_CLIENT_IDENTIFIER },
58 { FTO_CHADDR, "client-hardware-address", FT_BYTES, 0,
59 FM_OFFSET(chaddr), FTB_CHADDR },
60 { FTO_CLTT, "client-last-transaction-time", FT_UINT32, 1,
61 FM_OFFSET(cltt), FTB_CLTT },
62 { FTO_REPLY_OPTIONS, "client-reply-options", FT_BYTES, 0,
63 FM_OFFSET(reply_options), FTB_REPLY_OPTIONS },
64 { FTO_REQUEST_OPTIONS, "client-request-options", FT_BYTES, 0,
65 FM_OFFSET(request_options), FTB_REQUEST_OPTIONS },
66 { FTO_DDNS, "DDNS", FT_DDNS, 1, FM_OFFSET(ddns), FTB_DDNS },
67 { FTO_DELAYED_SERVICE, "delayed-service", FT_UINT8, 1,
68 FM_OFFSET(delayed_service), FTB_DELAYED_SERVICE },
69 { FTO_HBA, "hash-bucket-assignment", FT_BYTES, 0,
70 FM_OFFSET(hba), FTB_HBA },
71 { FTO_IP_FLAGS, "IP-flags", FT_UINT16, 1,
72 FM_OFFSET(ip_flags), FTB_IP_FLAGS },
73 { FTO_LEASE_EXPIRY, "lease-expiration-time", FT_UINT32, 1,
74 FM_OFFSET(expiry), FTB_LEASE_EXPIRY },
75 { FTO_MAX_UNACKED, "max-unacked-bndupd", FT_UINT32, 1,
76 FM_OFFSET(max_unacked), FTB_MAX_UNACKED },
77 { FTO_MCLT, "MCLT", FT_UINT32, 1, FM_OFFSET(mclt), FTB_MCLT },
78 { FTO_MESSAGE, "message", FT_TEXT, 0,
79 FM_OFFSET(message), FTB_MESSAGE },
80 { FTO_MESSAGE_DIGEST, "message-digest", FT_BYTES, 0,
81 FM_OFFSET(message_digest), FTB_MESSAGE_DIGEST },
82 { FTO_POTENTIAL_EXPIRY, "potential-expiration-time", FT_UINT32, 1,
83 FM_OFFSET(potential_expiry), FTB_POTENTIAL_EXPIRY },
84 { FTO_RECEIVE_TIMER, "receive-timer", FT_UINT32, 1,
85 FM_OFFSET(receive_timer), FTB_RECEIVE_TIMER },
86 { FTO_PROTOCOL_VERSION, "protocol-version", FT_UINT8, 1,
87 FM_OFFSET(protocol_version), FTB_PROTOCOL_VERSION },
88 { FTO_REJECT_REASON, "reject-reason", FT_UINT8, 1,
89 FM_OFFSET(reject_reason), FTB_REJECT_REASON },
90 { FTO_RELATIONSHIP_NAME, "relationship-name", FT_BYTES, 0,
91 FM_OFFSET(relationship_name), FTB_RELATIONSHIP_NAME },
92 { FTO_SERVER_FLAGS, "server-flags", FT_UINT8, 1,
93 FM_OFFSET(server_flags), FTB_SERVER_FLAGS },
94 { FTO_SERVER_STATE, "server-state", FT_UINT8, 1,
95 FM_OFFSET(server_state), FTB_SERVER_STATE },
96 { FTO_STOS, "start-time-of-state", FT_UINT32, 1,
97 FM_OFFSET(stos), FTB_STOS },
98 { FTO_TLS_REPLY, "TLS-reply", FT_UINT8, 1,
99 FM_OFFSET(tls_reply), FTB_TLS_REPLY },
100 { FTO_TLS_REQUEST, "TLS-request", FT_UINT8, 1,
101 FM_OFFSET(tls_request), FTB_TLS_REQUEST },
102 { FTO_VENDOR_CLASS, "vendor-class-identifier", FT_BYTES, 0,
103 FM_OFFSET(vendor_class), FTB_VENDOR_CLASS },
104 { FTO_VENDOR_OPTIONS, "vendor-specific-options", FT_BYTES, 0,
105 FM_OFFSET(vendor_options), FTB_VENDOR_OPTIONS }
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106};
107
108/* These are really options that make sense for a particular request - if
109 some other option comes in, we're not going to use it, so we can just
110 discard it. Note that the message-digest option is allowed for all
111 message types, but is not saved - it's just used to validate the message
112 and then discarded - so it's not mentioned here. */
113
114u_int32_t fto_allowed [] = {
115 0, /* 0 unused */
116 0, /* 1 POOLREQ */
117 FTB_ADDRESSES_TRANSFERRED, /* 2 POOLRESP */
118 (FTB_ASSIGNED_IP_ADDRESS | FTB_BINDING_STATUS | FTB_CLIENT_IDENTIFIER |
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119 FTB_CHADDR | FTB_DDNS | FTB_IP_FLAGS | FTB_LEASE_EXPIRY |
120 FTB_POTENTIAL_EXPIRY | FTB_STOS | FTB_CLTT | FTB_REQUEST_OPTIONS |
121 FTB_REPLY_OPTIONS), /* 3 BNDUPD */
5020567a 122 (FTB_ASSIGNED_IP_ADDRESS | FTB_BINDING_STATUS | FTB_CLIENT_IDENTIFIER |
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123 FTB_CHADDR | FTB_DDNS | FTB_IP_FLAGS | FTB_LEASE_EXPIRY |
124 FTB_POTENTIAL_EXPIRY | FTB_STOS | FTB_CLTT | FTB_REQUEST_OPTIONS |
125 FTB_REPLY_OPTIONS | FTB_REJECT_REASON | FTB_MESSAGE), /* 4 BNDACK */
126 (FTB_RELATIONSHIP_NAME | FTB_MAX_UNACKED | FTB_RECEIVE_TIMER |
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127 FTB_VENDOR_CLASS | FTB_PROTOCOL_VERSION | FTB_TLS_REQUEST |
128 FTB_MCLT | FTB_HBA), /* 5 CONNECT */
a55ccdd0 129 (FTB_RELATIONSHIP_NAME | FTB_MAX_UNACKED | FTB_RECEIVE_TIMER |
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130 FTB_VENDOR_CLASS | FTB_PROTOCOL_VERSION | FTB_TLS_REPLY |
131 FTB_REJECT_REASON | FTB_MESSAGE), /* CONNECTACK */
a55ccdd0 132 0, /* 7 UPDREQALL */
3505ef68 133 0, /* 8 UPDDONE */
a55ccdd0 134 0, /* 9 UPDREQ */
f64d028b 135 (FTB_SERVER_STATE | FTB_SERVER_FLAGS | FTB_STOS), /* 10 STATE */
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136 0, /* 11 CONTACT */
137 (FTB_REJECT_REASON | FTB_MESSAGE) /* 12 DISCONNECT */
138};
139
f64d028b 140/* Sizes of the various types. */
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141int ft_sizes [] = {
142 1, /* FT_UINT8 */
143 4, /* FT_IPADDR */
144 4, /* FT_UINT32 */
145 1, /* FT_BYTES */
f64d028b 146 1, /* FT_TEXT_OR_BYTES */
5020567a 147 0, /* FT_DDNS */
f64d028b 148 0, /* FT_DDNS1 */
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149 2, /* FT_UINT16 */
150 1, /* FT_TEXT */
151 0, /* FT_UNDEF */
152 0, /* FT_DIGEST */
153};
d9eefc5d 154
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155/* Names of the various failover link states. */
156const char *dhcp_flink_state_names [] = {
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157 "invalid state 0",
158 "startup",
159 "message length wait",
160 "message wait",
161 "disconnected"
162};
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163#endif /* FAILOVER_PROTOCOL */
164
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165/* Failover binding state names. These are used even if there is no
166 failover protocol support. */
167const char *binding_state_names [] = {
168 "free", "active", "expired", "released", "abandoned",
a55ccdd0 169 "reset", "backup" };
007e3ee4 170
5020567a 171struct universe agent_universe;
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172static struct option agent_options[] = {
173 { "circuit-id", "X", &agent_universe, 1, 1 },
174 { "remote-id", "X", &agent_universe, 2, 1 },
175 { "agent-id", "I", &agent_universe, 3, 1 },
176 { "DOCSIS-device-class", "L", &agent_universe, 4, 1 },
334bf491 177 { "link-selection", "I", &agent_universe, 5, 1 },
f7fdb216 178 { NULL, NULL, NULL, 0, 0 }
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179};
180
181struct universe server_universe;
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182static struct option server_options[] = {
183 { "default-lease-time", "T", &server_universe, 1, 1 },
184 { "max-lease-time", "T", &server_universe, 2, 1 },
185 { "min-lease-time", "T", &server_universe, 3, 1 },
186 { "dynamic-bootp-lease-cutoff", "T", &server_universe, 4, 1 },
187 { "dynamic-bootp-lease-length", "L", &server_universe, 5, 1 },
188 { "boot-unknown-clients", "f", &server_universe, 6, 1 },
189 { "dynamic-bootp", "f", &server_universe, 7, 1 },
190 { "allow-bootp", "f", &server_universe, 8, 1 },
191 { "allow-booting", "f", &server_universe, 9, 1 },
192 { "one-lease-per-client", "f", &server_universe, 10, 1 },
193 { "get-lease-hostnames", "f", &server_universe, 11, 1 },
194 { "use-host-decl-names", "f", &server_universe, 12, 1 },
195 { "use-lease-addr-for-default-route", "f",
196 &server_universe, 13, 1 },
197 { "min-secs", "B", &server_universe, 14, 1 },
198 { "filename", "t", &server_universe, 15, 1 },
199 { "server-name", "t", &server_universe, 16, 1 },
200 { "next-server", "I", &server_universe, 17, 1 },
201 { "authoritative", "f", &server_universe, 18, 1 },
202 { "vendor-option-space", "U", &server_universe, 19, 1 },
203 { "always-reply-rfc1048", "f", &server_universe, 20, 1 },
204 { "site-option-space", "X", &server_universe, 21, 1 },
205 { "always-broadcast", "f", &server_universe, 22, 1 },
206 { "ddns-domainname", "t", &server_universe, 23, 1 },
207 { "ddns-hostname", "t", &server_universe, 24, 1 },
208 { "ddns-rev-domainname", "t", &server_universe, 25, 1 },
209 { "lease-file-name", "t", &server_universe, 26, 1 },
210 { "pid-file-name", "t", &server_universe, 27, 1 },
211 { "duplicates", "f", &server_universe, 28, 1 },
212 { "declines", "f", &server_universe, 29, 1 },
213 { "ddns-updates", "f", &server_universe, 30, 1 },
214 { "omapi-port", "S", &server_universe, 31, 1 },
215 { "local-port", "S", &server_universe, 32, 1 },
216 { "limited-broadcast-address", "I", &server_universe, 33, 1 },
217 { "remote-port", "S", &server_universe, 34, 1 },
218 { "local-address", "I", &server_universe, 35, 1 },
219 { "omapi-key", "d", &server_universe, 36, 1 },
220 { "stash-agent-options", "f", &server_universe, 37, 1 },
221 { "ddns-ttl", "T", &server_universe, 38, 1 },
222 { "ddns-update-style", "Nddns-styles.", &server_universe, 39, 1 },
223 { "client-updates", "f", &server_universe, 40, 1 },
224 { "update-optimization", "f", &server_universe, 41, 1 },
225 { "ping-check", "f", &server_universe, 42, 1 },
226 { "update-static-leases", "f", &server_universe, 43, 1 },
227 { "log-facility", "Nsyslog-facilities.",
228 &server_universe, 44, 1 },
229 { "do-forward-updates", "f", &server_universe, 45, 1 },
230 { "ping-timeout", "T", &server_universe, 46, 1 },
1db5e2c0 231 { "infinite-is-reserved", "f", &server_universe, 47, 1 },
3004bebf 232 { "update-conflict-detection", "f", &server_universe, 48, 1 },
bd2bc2fa 233 { "leasequery", "f", &server_universe, 49, 1 },
b22de500 234 { "adaptive-lease-time-threshold", "B", &server_universe, 50, 1 },
4d2eaafb 235 { "do-reverse-updates", "f", &server_universe, 51, 1 },
1ba87b37 236 { "fqdn-reply", "f", &server_universe, 52, 1 },
98bd7ca0 237 { "preferred-lifetime", "T", &server_universe, 53, 1 },
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238 { "dhcpv6-lease-file-name", "t", &server_universe, 54, 1 },
239 { "dhcpv6-pid-file-name", "t", &server_universe, 55, 1 },
b024480e 240 { "limit-addrs-per-ia", "L", &server_universe, 56, 1 },
f7fdb216 241 { NULL, NULL, NULL, 0, 0 }
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242};
243
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244struct enumeration_value ddns_styles_values [] = {
245 { "none", 0 },
246 { "ad-hoc", 1 },
247 { "interim", 2 },
248 { (char *)0, 0 }
249};
250
251struct enumeration ddns_styles = {
252 (struct enumeration *)0,
98bd7ca0 253 "ddns-styles", 1,
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254 ddns_styles_values
255};
256
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257struct enumeration_value syslog_values [] = {
258#if defined (LOG_KERN)
259 { "kern", LOG_KERN },
260#endif
261#if defined (LOG_USER)
262 { "user", LOG_USER },
263#endif
264#if defined (LOG_MAIL)
265 { "mail", LOG_MAIL },
266#endif
267#if defined (LOG_DAEMON)
268 { "daemon", LOG_DAEMON },
269#endif
270#if defined (LOG_AUTH)
271 { "auth", LOG_AUTH },
272#endif
273#if defined (LOG_SYSLOG)
274 { "syslog", LOG_SYSLOG },
275#endif
276#if defined (LOG_LPR)
277 { "lpr", LOG_LPR },
278#endif
279#if defined (LOG_NEWS)
280 { "news", LOG_NEWS },
281#endif
282#if defined (LOG_UUCP)
283 { "uucp", LOG_UUCP },
284#endif
285#if defined (LOG_CRON)
286 { "cron", LOG_CRON },
287#endif
288#if defined (LOG_AUTHPRIV)
289 { "authpriv", LOG_AUTHPRIV },
290#endif
291#if defined (LOG_FTP)
292 { "ftp", LOG_FTP },
293#endif
294#if defined (LOG_LOCAL0)
295 { "local0", LOG_LOCAL0 },
296#endif
297#if defined (LOG_LOCAL1)
298 { "local1", LOG_LOCAL1 },
299#endif
300#if defined (LOG_LOCAL2)
301 { "local2", LOG_LOCAL2 },
302#endif
303#if defined (LOG_LOCAL3)
304 { "local3", LOG_LOCAL3 },
305#endif
306#if defined (LOG_LOCAL4)
307 { "local4", LOG_LOCAL4 },
308#endif
309#if defined (LOG_LOCAL5)
310 { "local5", LOG_LOCAL5 },
311#endif
312#if defined (LOG_LOCAL6)
313 { "local6", LOG_LOCAL6 },
314#endif
315#if defined (LOG_LOCAL7)
316 { "local7", LOG_LOCAL7 },
317#endif
318 { (char *)0, 0 }
319};
320
321struct enumeration syslog_enum = {
322 (struct enumeration *)0,
98bd7ca0 323 "syslog-facilities", 1,
0feab074
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324 syslog_values
325};
326
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327void initialize_server_option_spaces()
328{
329 int i;
f7fdb216 330 unsigned code;
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331
332 /* Set up the Relay Agent Information Option suboption space... */
333 agent_universe.name = "agent";
98bd7ca0 334 agent_universe.concat_duplicates = 0;
5020567a 335 agent_universe.option_state_dereference =
e929278f
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336 linked_option_state_dereference;
337 agent_universe.lookup_func = lookup_linked_option;
338 agent_universe.save_func = save_linked_option;
339 agent_universe.delete_func = delete_linked_option;
340 agent_universe.encapsulate = linked_option_space_encapsulate;
341 agent_universe.foreach = linked_option_space_foreach;
342 agent_universe.decode = parse_option_buffer;
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343 agent_universe.index = universe_count++;
344 agent_universe.length_size = 1;
345 agent_universe.tag_size = 1;
f7fdb216 346 agent_universe.get_tag = getUChar;
5020567a 347 agent_universe.store_tag = putUChar;
f7fdb216 348 agent_universe.get_length = getUChar;
5020567a 349 agent_universe.store_length = putUChar;
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DH
350 agent_universe.site_code_min = 0;
351 agent_universe.end = 0;
5020567a 352 universes [agent_universe.index] = &agent_universe;
f7fdb216
DH
353 if (!option_name_new_hash(&agent_universe.name_hash,
354 AGENT_HASH_SIZE, MDL) ||
355 !option_code_new_hash(&agent_universe.code_hash,
356 AGENT_HASH_SIZE, MDL))
5020567a 357 log_fatal ("Can't allocate agent option hash table.");
f7fdb216
DH
358 for (i = 0 ; agent_options[i].name ; i++) {
359 option_code_hash_add(agent_universe.code_hash,
360 &agent_options[i].code, 0,
361 &agent_options[i], MDL);
362 option_name_hash_add(agent_universe.name_hash,
363 agent_options[i].name, 0,
364 &agent_options[i], MDL);
5020567a 365 }
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DH
366#if defined(REPORT_HASH_PERFORMANCE)
367 log_info("Relay Agent name hash: %s",
368 option_name_hash_report(agent_universe.name_hash));
369 log_info("Relay Agent code hash: %s",
370 option_code_hash_report(agent_universe.code_hash));
371#endif
f7fdb216
DH
372 code = DHO_DHCP_AGENT_OPTIONS;
373 option_code_hash_lookup(&agent_universe.enc_opt,
374 dhcp_universe.code_hash, &code, 0, MDL);
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375
376 /* Set up the server option universe... */
377 server_universe.name = "server";
98bd7ca0 378 server_universe.concat_duplicates = 0;
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379 server_universe.lookup_func = lookup_hashed_option;
380 server_universe.option_state_dereference =
381 hashed_option_state_dereference;
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382 server_universe.save_func = save_hashed_option;
383 server_universe.delete_func = delete_hashed_option;
384 server_universe.encapsulate = hashed_option_space_encapsulate;
e929278f 385 server_universe.foreach = hashed_option_space_foreach;
f7fdb216
DH
386 server_universe.length_size = 1; /* Never used ... */
387 server_universe.tag_size = 4;
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388 server_universe.store_tag = putUChar;
389 server_universe.store_length = putUChar;
2c9bf1f4
DH
390 server_universe.site_code_min = 0;
391 server_universe.end = 0;
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392 server_universe.index = universe_count++;
393 universes [server_universe.index] = &server_universe;
f7fdb216
DH
394 if (!option_name_new_hash(&server_universe.name_hash,
395 SERVER_HASH_SIZE, MDL) ||
396 !option_code_new_hash(&server_universe.code_hash,
397 SERVER_HASH_SIZE, MDL))
5020567a 398 log_fatal ("Can't allocate server option hash table.");
f7fdb216
DH
399 for (i = 0 ; server_options[i].name ; i++) {
400 option_code_hash_add(server_universe.code_hash,
401 &server_options[i].code, 0,
402 &server_options[i], MDL);
403 option_name_hash_add(server_universe.name_hash,
404 server_options[i].name, 0,
405 &server_options[i], MDL);
5020567a 406 }
6708d944
DH
407#if defined(REPORT_HASH_PERFORMANCE)
408 log_info("Server-Config Option name hash: %s",
409 option_name_hash_report(server_universe.name_hash));
410 log_info("Server-Config Option code hash: %s",
411 option_code_hash_report(server_universe.code_hash));
412#endif
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413
414 /* Add the server and agent option spaces to the option space hash. */
20916cae
TL
415 universe_hash_add (universe_hash,
416 agent_universe.name, 0, &agent_universe, MDL);
417 universe_hash_add (universe_hash,
418 server_universe.name, 0, &server_universe, MDL);
588af269
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419
420 /* Make the server universe the configuration option universe. */
421 config_universe = &server_universe;
f7fdb216
DH
422
423 code = SV_VENDOR_OPTION_SPACE;
424 option_code_hash_lookup(&vendor_cfg_option, server_universe.code_hash,
425 &code, 0, MDL);
5020567a 426}