2 * util/config_file.c - reads and stores the config file for unbound.
4 * Copyright (c) 2007, NLnet Labs. All rights reserved.
6 * This software is open source.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
15 * Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
19 * Neither the name of the NLNET LABS nor the names of its contributors may
20 * be used to endorse or promote products derived from this software without
21 * specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
29 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 * This file contains functions for the config file.
49 #include "util/configyyrename.h"
50 #include "util/config_file.h"
51 #include "configparser.h"
52 #include "util/net_help.h"
53 #include "util/data/msgparse.h"
54 #include "util/module.h"
55 #include "util/regional.h"
56 #include "util/fptr_wlist.h"
57 #include "util/data/dname.h"
59 #include "services/cache/infra.h"
60 #include "sldns/wire2str.h"
61 #include "sldns/parseutil.h"
66 #include "edns-subnet/edns-subnet.h"
72 /** from cfg username, after daemonize setup performed */
73 uid_t cfg_uid = (uid_t)-1;
74 /** from cfg username, after daemonize setup performed */
75 gid_t cfg_gid = (gid_t)-1;
76 /** for debug allow small timeout values for fast rollovers */
77 int autr_permit_small_holddown = 0;
79 /** global config during parsing */
80 struct config_parser_state* cfg_parser = 0;
82 /** init ports possible for use */
83 static void init_outgoing_availports(int* array, int num);
88 struct config_file* cfg;
89 cfg = (struct config_file*)calloc(1, sizeof(struct config_file));
92 /* the defaults if no config is present */
94 cfg->stat_interval = 0;
95 cfg->stat_cumulative = 0;
96 cfg->stat_extended = 0;
98 cfg->port = UNBOUND_DNS_PORT;
103 cfg->tcp_upstream = 0;
104 cfg->udp_upstream_without_downstream = 0;
106 cfg->outgoing_tcp_mss = 0;
107 cfg->ssl_service_key = NULL;
108 cfg->ssl_service_pem = NULL;
110 cfg->ssl_upstream = 0;
111 cfg->tls_cert_bundle = NULL;
113 cfg->log_identity = NULL; /* changed later with argv[0] */
114 cfg->log_time_ascii = 0;
115 cfg->log_queries = 0;
116 cfg->log_replies = 0;
118 # ifdef USE_MINI_EVENT
119 /* select max 1024 sockets */
120 cfg->outgoing_num_ports = 960;
121 cfg->num_queries_per_thread = 512;
123 /* libevent can use many sockets */
124 cfg->outgoing_num_ports = 4096;
125 cfg->num_queries_per_thread = 1024;
127 cfg->outgoing_num_tcp = 10;
128 cfg->incoming_num_tcp = 10;
130 cfg->outgoing_num_ports = 48; /* windows is limited in num fds */
131 cfg->num_queries_per_thread = 24;
132 cfg->outgoing_num_tcp = 2; /* leaves 64-52=12 for: 4if,1stop,thread4 */
133 cfg->incoming_num_tcp = 2;
135 cfg->edns_buffer_size = 4096; /* 4k from rfc recommendation */
136 cfg->msg_buffer_size = 65552; /* 64 k + a small margin */
137 cfg->msg_cache_size = 4 * 1024 * 1024;
138 cfg->msg_cache_slabs = 4;
139 cfg->jostle_time = 200;
140 cfg->rrset_cache_size = 4 * 1024 * 1024;
141 cfg->rrset_cache_slabs = 4;
145 cfg->max_ttl = 3600 * 24;
146 cfg->max_negative_ttl = 3600;
148 cfg->prefetch_key = 0;
149 cfg->infra_cache_slabs = 4;
150 cfg->infra_cache_numhosts = 10000;
151 cfg->infra_cache_min_rtt = 50;
152 cfg->delay_close = 0;
153 if(!(cfg->outgoing_avail_ports = (int*)calloc(65536, sizeof(int))))
155 init_outgoing_availports(cfg->outgoing_avail_ports, 65536);
156 if(!(cfg->username = strdup(UB_USERNAME))) goto error_exit;
158 if(!(cfg->chrootdir = strdup(CHROOT_DIR))) goto error_exit;
160 if(!(cfg->directory = strdup(RUN_DIR))) goto error_exit;
161 if(!(cfg->logfile = strdup(""))) goto error_exit;
162 if(!(cfg->pidfile = strdup(PIDFILE))) goto error_exit;
163 if(!(cfg->target_fetch_policy = strdup("3 2 1 0 0"))) goto error_exit;
164 cfg->donotqueryaddrs = NULL;
165 cfg->donotquery_localhost = 1;
166 cfg->root_hints = NULL;
167 cfg->use_systemd = 0;
168 cfg->do_daemonize = 1;
169 cfg->if_automatic = 0;
172 cfg->so_reuseport = 0;
173 cfg->ip_transparent = 0;
174 cfg->ip_freebind = 0;
177 cfg->num_out_ifs = 0;
180 cfg->forwards = NULL;
183 cfg->client_subnet = NULL;
184 cfg->client_subnet_zone = NULL;
185 cfg->client_subnet_opcode = LDNS_EDNS_CLIENT_SUBNET;
186 cfg->client_subnet_always_forward = 0;
187 cfg->max_client_subnet_ipv4 = 24;
188 cfg->max_client_subnet_ipv6 = 56;
192 cfg->harden_short_bufsize = 0;
193 cfg->harden_large_queries = 0;
194 cfg->harden_glue = 1;
195 cfg->harden_dnssec_stripped = 1;
196 cfg->harden_below_nxdomain = 0;
197 cfg->harden_referral_path = 0;
198 cfg->harden_algo_downgrade = 0;
199 cfg->use_caps_bits_for_id = 0;
200 cfg->caps_whitelist = NULL;
201 cfg->private_address = NULL;
202 cfg->private_domain = NULL;
203 cfg->unwanted_threshold = 0;
204 cfg->hide_identity = 0;
205 cfg->hide_version = 0;
206 cfg->hide_trustanchor = 0;
207 cfg->identity = NULL;
209 cfg->auto_trust_anchor_file_list = NULL;
210 cfg->trust_anchor_file_list = NULL;
211 cfg->trust_anchor_list = NULL;
212 cfg->trusted_keys_file_list = NULL;
213 cfg->trust_anchor_signaling = 1;
214 cfg->dlv_anchor_file = NULL;
215 cfg->dlv_anchor_list = NULL;
216 cfg->domain_insecure = NULL;
217 cfg->val_date_override = 0;
218 cfg->val_sig_skew_min = 3600; /* at least daylight savings trouble */
219 cfg->val_sig_skew_max = 86400; /* at most timezone settings trouble */
220 cfg->val_clean_additional = 1;
221 cfg->val_log_level = 0;
222 cfg->val_log_squelch = 0;
223 cfg->val_permissive_mode = 0;
224 cfg->aggressive_nsec = 0;
226 cfg->serve_expired = 0;
227 cfg->add_holddown = 30*24*3600;
228 cfg->del_holddown = 30*24*3600;
229 cfg->keep_missing = 366*24*3600; /* one year plus a little leeway */
230 cfg->permit_small_holddown = 0;
231 cfg->key_cache_size = 4 * 1024 * 1024;
232 cfg->key_cache_slabs = 4;
233 cfg->neg_cache_size = 1 * 1024 * 1024;
234 cfg->local_zones = NULL;
235 cfg->local_zones_nodefault = NULL;
236 cfg->local_zones_disable_default = 0;
237 cfg->local_data = NULL;
238 cfg->local_zone_overrides = NULL;
239 cfg->unblock_lan_zones = 0;
240 cfg->insecure_lan_zones = 0;
241 cfg->python_script = NULL;
242 cfg->remote_control_enable = 0;
243 cfg->control_ifs = NULL;
244 cfg->control_port = UNBOUND_CONTROL_PORT;
245 cfg->remote_control_use_cert = 1;
246 cfg->minimal_responses = 0;
247 cfg->rrset_roundrobin = 0;
248 cfg->max_udp_size = 4096;
249 if(!(cfg->server_key_file = strdup(RUN_DIR"/unbound_server.key")))
251 if(!(cfg->server_cert_file = strdup(RUN_DIR"/unbound_server.pem")))
253 if(!(cfg->control_key_file = strdup(RUN_DIR"/unbound_control.key")))
255 if(!(cfg->control_cert_file = strdup(RUN_DIR"/unbound_control.pem")))
259 if(!(cfg->module_conf = strdup("subnetcache validator iterator"))) goto error_exit;
261 if(!(cfg->module_conf = strdup("validator iterator"))) goto error_exit;
263 if(!(cfg->val_nsec3_key_iterations =
264 strdup("1024 150 2048 500 4096 2500"))) goto error_exit;
265 #if defined(DNSTAP_SOCKET_PATH)
266 if(!(cfg->dnstap_socket_path = strdup(DNSTAP_SOCKET_PATH)))
269 cfg->disable_dnssec_lame_check = 0;
270 cfg->ip_ratelimit = 0;
272 cfg->ip_ratelimit_slabs = 4;
273 cfg->ratelimit_slabs = 4;
274 cfg->ip_ratelimit_size = 4*1024*1024;
275 cfg->ratelimit_size = 4*1024*1024;
276 cfg->ratelimit_for_domain = NULL;
277 cfg->ratelimit_below_domain = NULL;
278 cfg->ip_ratelimit_factor = 10;
279 cfg->ratelimit_factor = 10;
280 cfg->qname_minimisation = 0;
281 cfg->qname_minimisation_strict = 0;
283 cfg->shm_key = 11777;
285 cfg->dnscrypt_port = 0;
286 cfg->dnscrypt_provider = NULL;
287 cfg->dnscrypt_provider_cert = NULL;
288 cfg->dnscrypt_provider_cert_rotated = NULL;
289 cfg->dnscrypt_secret_key = NULL;
290 cfg->dnscrypt_shared_secret_cache_size = 4*1024*1024;
291 cfg->dnscrypt_shared_secret_cache_slabs = 4;
292 cfg->dnscrypt_nonce_cache_size = 4*1024*1024;
293 cfg->dnscrypt_nonce_cache_slabs = 4;
295 cfg->ipsecmod_enabled = 1;
296 cfg->ipsecmod_ignore_bogus = 0;
297 cfg->ipsecmod_hook = NULL;
298 cfg->ipsecmod_max_ttl = 3600;
299 cfg->ipsecmod_whitelist = NULL;
300 cfg->ipsecmod_strict = 0;
303 cfg->cachedb_backend = NULL;
304 cfg->cachedb_secret = NULL;
312 struct config_file* config_create_forlib(void)
314 struct config_file* cfg = config_create();
315 if(!cfg) return NULL;
316 /* modifications for library use, less verbose, less memory */
317 free(cfg->chrootdir);
318 cfg->chrootdir = NULL;
320 cfg->outgoing_num_ports = 16; /* in library use, this is 'reasonable'
321 and probably within the ulimit(maxfds) of the user */
322 cfg->outgoing_num_tcp = 2;
323 cfg->msg_cache_size = 1024*1024;
324 cfg->msg_cache_slabs = 1;
325 cfg->rrset_cache_size = 1024*1024;
326 cfg->rrset_cache_slabs = 1;
327 cfg->infra_cache_slabs = 1;
329 cfg->key_cache_size = 1024*1024;
330 cfg->key_cache_slabs = 1;
331 cfg->neg_cache_size = 100 * 1024;
332 cfg->donotquery_localhost = 0; /* allow, so that you can ask a
333 forward nameserver running on localhost */
334 cfg->val_log_level = 2; /* to fill why_bogus with */
335 cfg->val_log_squelch = 1;
339 /** check that the value passed is >= 0 */
340 #define IS_NUMBER_OR_ZERO \
341 if(atoi(val) == 0 && strcmp(val, "0") != 0) return 0
342 /** check that the value passed is > 0 */
343 #define IS_NONZERO_NUMBER \
344 if(atoi(val) == 0) return 0
345 /** check that the value passed is not 0 and a power of 2 */
346 #define IS_POW2_NUMBER \
347 if(atoi(val) == 0 || !is_pow2((size_t)atoi(val))) return 0
348 /** check that the value passed is yes or no */
349 #define IS_YES_OR_NO \
350 if(strcmp(val, "yes") != 0 && strcmp(val, "no") != 0) return 0
351 /** put integer_or_zero into variable */
352 #define S_NUMBER_OR_ZERO(str, var) if(strcmp(opt, str) == 0) \
353 { IS_NUMBER_OR_ZERO; cfg->var = atoi(val); }
354 /** put integer_nonzero into variable */
355 #define S_NUMBER_NONZERO(str, var) if(strcmp(opt, str) == 0) \
356 { IS_NONZERO_NUMBER; cfg->var = atoi(val); }
357 /** put integer_or_zero into unsigned */
358 #define S_UNSIGNED_OR_ZERO(str, var) if(strcmp(opt, str) == 0) \
359 { IS_NUMBER_OR_ZERO; cfg->var = (unsigned)atoi(val); }
360 /** put integer_or_zero into size_t */
361 #define S_SIZET_OR_ZERO(str, var) if(strcmp(opt, str) == 0) \
362 { IS_NUMBER_OR_ZERO; cfg->var = (size_t)atoi(val); }
363 /** put integer_nonzero into size_t */
364 #define S_SIZET_NONZERO(str, var) if(strcmp(opt, str) == 0) \
365 { IS_NONZERO_NUMBER; cfg->var = (size_t)atoi(val); }
366 /** put yesno into variable */
367 #define S_YNO(str, var) if(strcmp(opt, str) == 0) \
368 { IS_YES_OR_NO; cfg->var = (strcmp(val, "yes") == 0); }
369 /** put memsize into variable */
370 #define S_MEMSIZE(str, var) if(strcmp(opt, str)==0) \
371 { return cfg_parse_memsize(val, &cfg->var); }
372 /** put pow2 number into variable */
373 #define S_POW2(str, var) if(strcmp(opt, str)==0) \
374 { IS_POW2_NUMBER; cfg->var = (size_t)atoi(val); }
375 /** put string into variable */
376 #define S_STR(str, var) if(strcmp(opt, str)==0) \
377 { free(cfg->var); return (cfg->var = strdup(val)) != NULL; }
378 /** put string into strlist */
379 #define S_STRLIST(str, var) if(strcmp(opt, str)==0) \
380 { return cfg_strlist_insert(&cfg->var, strdup(val)); }
381 /** put string into strlist if not present yet*/
382 #define S_STRLIST_UNIQ(str, var) if(strcmp(opt, str)==0) \
383 { if(cfg_strlist_find(cfg->var, val)) { return 0;} \
384 return cfg_strlist_insert(&cfg->var, strdup(val)); }
386 int config_set_option(struct config_file* cfg, const char* opt,
389 S_NUMBER_OR_ZERO("verbosity:", verbosity)
390 else if(strcmp(opt, "statistics-interval:") == 0) {
391 if(strcmp(val, "0") == 0 || strcmp(val, "") == 0)
392 cfg->stat_interval = 0;
393 else if(atoi(val) == 0)
395 else cfg->stat_interval = atoi(val);
396 } else if(strcmp(opt, "num_threads:") == 0) {
397 /* not supported, library must have 1 thread in bgworker */
399 } else if(strcmp(opt, "outgoing-port-permit:") == 0) {
400 return cfg_mark_ports(val, 1,
401 cfg->outgoing_avail_ports, 65536);
402 } else if(strcmp(opt, "outgoing-port-avoid:") == 0) {
403 return cfg_mark_ports(val, 0,
404 cfg->outgoing_avail_ports, 65536);
405 } else if(strcmp(opt, "local-zone:") == 0) {
406 return cfg_parse_local_zone(cfg, val);
407 } else if(strcmp(opt, "val-override-date:") == 0) {
408 if(strcmp(val, "") == 0 || strcmp(val, "0") == 0) {
409 cfg->val_date_override = 0;
410 } else if(strlen(val) == 14) {
411 cfg->val_date_override = cfg_convert_timeval(val);
412 return cfg->val_date_override != 0;
414 if(atoi(val) == 0) return 0;
415 cfg->val_date_override = (uint32_t)atoi(val);
417 } else if(strcmp(opt, "local-data-ptr:") == 0) {
418 char* ptr = cfg_ptr_reverse((char*)opt);
419 return cfg_strlist_insert(&cfg->local_data, ptr);
420 } else if(strcmp(opt, "logfile:") == 0) {
423 return (cfg->logfile = strdup(val)) != NULL;
425 else if(strcmp(opt, "log-time-ascii:") == 0)
426 { IS_YES_OR_NO; cfg->log_time_ascii = (strcmp(val, "yes") == 0);
427 log_set_time_asc(cfg->log_time_ascii); }
428 else S_SIZET_NONZERO("max-udp-size:", max_udp_size)
429 else S_YNO("use-syslog:", use_syslog)
430 else S_STR("log-identity:", log_identity)
431 else S_YNO("extended-statistics:", stat_extended)
432 else S_YNO("statistics-cumulative:", stat_cumulative)
433 else S_YNO("shm-enable:", shm_enable)
434 else S_NUMBER_OR_ZERO("shm-key:", shm_key)
435 else S_YNO("do-ip4:", do_ip4)
436 else S_YNO("do-ip6:", do_ip6)
437 else S_YNO("do-udp:", do_udp)
438 else S_YNO("do-tcp:", do_tcp)
439 else S_YNO("tcp-upstream:", tcp_upstream)
440 else S_YNO("udp-upstream-without-downstream:",
441 udp_upstream_without_downstream)
442 else S_NUMBER_NONZERO("tcp-mss:", tcp_mss)
443 else S_NUMBER_NONZERO("outgoing-tcp-mss:", outgoing_tcp_mss)
444 else S_YNO("ssl-upstream:", ssl_upstream)
445 else S_STR("ssl-service-key:", ssl_service_key)
446 else S_STR("ssl-service-pem:", ssl_service_pem)
447 else S_NUMBER_NONZERO("ssl-port:", ssl_port)
448 else S_STR("tls-cert-bundle:", tls_cert_bundle)
449 else S_YNO("interface-automatic:", if_automatic)
450 else S_YNO("use-systemd:", use_systemd)
451 else S_YNO("do-daemonize:", do_daemonize)
452 else S_NUMBER_NONZERO("port:", port)
453 else S_NUMBER_NONZERO("outgoing-range:", outgoing_num_ports)
454 else S_SIZET_OR_ZERO("outgoing-num-tcp:", outgoing_num_tcp)
455 else S_SIZET_OR_ZERO("incoming-num-tcp:", incoming_num_tcp)
456 else S_SIZET_NONZERO("edns-buffer-size:", edns_buffer_size)
457 else S_SIZET_NONZERO("msg-buffer-size:", msg_buffer_size)
458 else S_MEMSIZE("msg-cache-size:", msg_cache_size)
459 else S_POW2("msg-cache-slabs:", msg_cache_slabs)
460 else S_SIZET_NONZERO("num-queries-per-thread:",num_queries_per_thread)
461 else S_SIZET_OR_ZERO("jostle-timeout:", jostle_time)
462 else S_MEMSIZE("so-rcvbuf:", so_rcvbuf)
463 else S_MEMSIZE("so-sndbuf:", so_sndbuf)
464 else S_YNO("so-reuseport:", so_reuseport)
465 else S_YNO("ip-transparent:", ip_transparent)
466 else S_YNO("ip-freebind:", ip_freebind)
467 else S_MEMSIZE("rrset-cache-size:", rrset_cache_size)
468 else S_POW2("rrset-cache-slabs:", rrset_cache_slabs)
469 else S_YNO("prefetch:", prefetch)
470 else S_YNO("prefetch-key:", prefetch_key)
471 else if(strcmp(opt, "cache-max-ttl:") == 0)
472 { IS_NUMBER_OR_ZERO; cfg->max_ttl = atoi(val); MAX_TTL=(time_t)cfg->max_ttl;}
473 else if(strcmp(opt, "cache-max-negative-ttl:") == 0)
474 { IS_NUMBER_OR_ZERO; cfg->max_negative_ttl = atoi(val); MAX_NEG_TTL=(time_t)cfg->max_negative_ttl;}
475 else if(strcmp(opt, "cache-min-ttl:") == 0)
476 { IS_NUMBER_OR_ZERO; cfg->min_ttl = atoi(val); MIN_TTL=(time_t)cfg->min_ttl;}
477 else if(strcmp(opt, "infra-cache-min-rtt:") == 0) {
478 IS_NUMBER_OR_ZERO; cfg->infra_cache_min_rtt = atoi(val);
479 RTT_MIN_TIMEOUT=cfg->infra_cache_min_rtt;
481 else S_NUMBER_OR_ZERO("infra-host-ttl:", host_ttl)
482 else S_POW2("infra-cache-slabs:", infra_cache_slabs)
483 else S_SIZET_NONZERO("infra-cache-numhosts:", infra_cache_numhosts)
484 else S_NUMBER_OR_ZERO("delay-close:", delay_close)
485 else S_STR("chroot:", chrootdir)
486 else S_STR("username:", username)
487 else S_STR("directory:", directory)
488 else S_STR("pidfile:", pidfile)
489 else S_YNO("hide-identity:", hide_identity)
490 else S_YNO("hide-version:", hide_version)
491 else S_YNO("hide-trustanchor:", hide_trustanchor)
492 else S_STR("identity:", identity)
493 else S_STR("version:", version)
494 else S_STRLIST("root-hints:", root_hints)
495 else S_STR("target-fetch-policy:", target_fetch_policy)
496 else S_YNO("harden-glue:", harden_glue)
497 else S_YNO("harden-short-bufsize:", harden_short_bufsize)
498 else S_YNO("harden-large-queries:", harden_large_queries)
499 else S_YNO("harden-dnssec-stripped:", harden_dnssec_stripped)
500 else S_YNO("harden-below-nxdomain:", harden_below_nxdomain)
501 else S_YNO("harden-referral-path:", harden_referral_path)
502 else S_YNO("harden-algo-downgrade:", harden_algo_downgrade)
503 else S_YNO("use-caps-for-id", use_caps_bits_for_id)
504 else S_STRLIST("caps-whitelist:", caps_whitelist)
505 else S_SIZET_OR_ZERO("unwanted-reply-threshold:", unwanted_threshold)
506 else S_STRLIST("private-address:", private_address)
507 else S_STRLIST("private-domain:", private_domain)
508 else S_YNO("do-not-query-localhost:", donotquery_localhost)
509 else S_STRLIST("do-not-query-address:", donotqueryaddrs)
510 else S_STRLIST("auto-trust-anchor-file:", auto_trust_anchor_file_list)
511 else S_STRLIST("trust-anchor-file:", trust_anchor_file_list)
512 else S_STRLIST("trust-anchor:", trust_anchor_list)
513 else S_STRLIST("trusted-keys-file:", trusted_keys_file_list)
514 else S_YNO("trust-anchor-signaling:", trust_anchor_signaling)
515 else S_STR("dlv-anchor-file:", dlv_anchor_file)
516 else S_STRLIST("dlv-anchor:", dlv_anchor_list)
517 else S_STRLIST("domain-insecure:", domain_insecure)
518 else S_NUMBER_OR_ZERO("val-bogus-ttl:", bogus_ttl)
519 else S_YNO("val-clean-additional:", val_clean_additional)
520 else S_NUMBER_OR_ZERO("val-log-level:", val_log_level)
521 else S_YNO("val-log-squelch:", val_log_squelch)
522 else S_YNO("log-queries:", log_queries)
523 else S_YNO("log-replies:", log_replies)
524 else S_YNO("val-permissive-mode:", val_permissive_mode)
525 else S_YNO("aggressive-nsec:", aggressive_nsec)
526 else S_YNO("ignore-cd-flag:", ignore_cd)
527 else S_YNO("serve-expired:", serve_expired)
528 else S_STR("val-nsec3-keysize-iterations:", val_nsec3_key_iterations)
529 else S_UNSIGNED_OR_ZERO("add-holddown:", add_holddown)
530 else S_UNSIGNED_OR_ZERO("del-holddown:", del_holddown)
531 else S_UNSIGNED_OR_ZERO("keep-missing:", keep_missing)
532 else if(strcmp(opt, "permit-small-holddown:") == 0)
533 { IS_YES_OR_NO; cfg->permit_small_holddown = (strcmp(val, "yes") == 0);
534 autr_permit_small_holddown = cfg->permit_small_holddown; }
535 else S_MEMSIZE("key-cache-size:", key_cache_size)
536 else S_POW2("key-cache-slabs:", key_cache_slabs)
537 else S_MEMSIZE("neg-cache-size:", neg_cache_size)
538 else S_YNO("minimal-responses:", minimal_responses)
539 else S_YNO("rrset-roundrobin:", rrset_roundrobin)
540 else S_STRLIST("local-data:", local_data)
541 else S_YNO("unblock-lan-zones:", unblock_lan_zones)
542 else S_YNO("insecure-lan-zones:", insecure_lan_zones)
543 else S_YNO("control-enable:", remote_control_enable)
544 else S_STRLIST("control-interface:", control_ifs)
545 else S_NUMBER_NONZERO("control-port:", control_port)
546 else S_STR("server-key-file:", server_key_file)
547 else S_STR("server-cert-file:", server_cert_file)
548 else S_STR("control-key-file:", control_key_file)
549 else S_STR("control-cert-file:", control_cert_file)
550 else S_STR("module-config:", module_conf)
551 else S_STR("python-script:", python_script)
552 else S_YNO("disable-dnssec-lame-check:", disable_dnssec_lame_check)
554 /* Can't set max subnet prefix here, since that value is used when
555 * generating the address tree. */
556 /* No client-subnet-always-forward here, module registration depends on
560 else S_YNO("dnstap-enable:", dnstap)
561 else S_STR("dnstap-socket-path:", dnstap_socket_path)
562 else S_YNO("dnstap-send-identity:", dnstap_send_identity)
563 else S_YNO("dnstap-send-version:", dnstap_send_version)
564 else S_STR("dnstap-identity:", dnstap_identity)
565 else S_STR("dnstap-version:", dnstap_version)
566 else S_YNO("dnstap-log-resolver-query-messages:",
567 dnstap_log_resolver_query_messages)
568 else S_YNO("dnstap-log-resolver-response-messages:",
569 dnstap_log_resolver_response_messages)
570 else S_YNO("dnstap-log-client-query-messages:",
571 dnstap_log_client_query_messages)
572 else S_YNO("dnstap-log-client-response-messages:",
573 dnstap_log_client_response_messages)
574 else S_YNO("dnstap-log-forwarder-query-messages:",
575 dnstap_log_forwarder_query_messages)
576 else S_YNO("dnstap-log-forwarder-response-messages:",
577 dnstap_log_forwarder_response_messages)
580 else S_YNO("dnscrypt-enable:", dnscrypt)
581 else S_NUMBER_NONZERO("dnscrypt-port:", dnscrypt_port)
582 else S_STR("dnscrypt-provider:", dnscrypt_provider)
583 else S_STRLIST_UNIQ("dnscrypt-provider-cert:", dnscrypt_provider_cert)
584 else S_STRLIST("dnscrypt-provider-cert-rotated:", dnscrypt_provider_cert_rotated)
585 else S_STRLIST_UNIQ("dnscrypt-secret-key:", dnscrypt_secret_key)
586 else S_MEMSIZE("dnscrypt-shared-secret-cache-size:",
587 dnscrypt_shared_secret_cache_size)
588 else S_POW2("dnscrypt-shared-secret-cache-slabs:",
589 dnscrypt_shared_secret_cache_slabs)
590 else S_MEMSIZE("dnscrypt-nonce-cache-size:",
591 dnscrypt_nonce_cache_size)
592 else S_POW2("dnscrypt-nonce-cache-slabs:",
593 dnscrypt_nonce_cache_slabs)
595 else if(strcmp(opt, "ip-ratelimit:") == 0) {
596 IS_NUMBER_OR_ZERO; cfg->ip_ratelimit = atoi(val);
597 infra_ip_ratelimit=cfg->ip_ratelimit;
599 else if(strcmp(opt, "ratelimit:") == 0) {
600 IS_NUMBER_OR_ZERO; cfg->ratelimit = atoi(val);
601 infra_dp_ratelimit=cfg->ratelimit;
603 else S_MEMSIZE("ip-ratelimit-size:", ip_ratelimit_size)
604 else S_MEMSIZE("ratelimit-size:", ratelimit_size)
605 else S_POW2("ip-ratelimit-slabs:", ip_ratelimit_slabs)
606 else S_POW2("ratelimit-slabs:", ratelimit_slabs)
607 else S_NUMBER_OR_ZERO("ip-ratelimit-factor:", ip_ratelimit_factor)
608 else S_NUMBER_OR_ZERO("ratelimit-factor:", ratelimit_factor)
609 else S_YNO("qname-minimisation:", qname_minimisation)
610 else S_YNO("qname-minimisation-strict:", qname_minimisation_strict)
612 else S_YNO("ipsecmod-enabled:", ipsecmod_enabled)
613 else S_YNO("ipsecmod-ignore-bogus:", ipsecmod_ignore_bogus)
614 else if(strcmp(opt, "ipsecmod-max-ttl:") == 0)
615 { IS_NUMBER_OR_ZERO; cfg->ipsecmod_max_ttl = atoi(val); }
616 else S_YNO("ipsecmod-strict:", ipsecmod_strict)
618 else if(strcmp(opt, "define-tag:") ==0) {
619 return config_add_tag(cfg, val);
620 /* val_sig_skew_min and max are copied into val_env during init,
621 * so this does not update val_env with set_option */
622 } else if(strcmp(opt, "val-sig-skew-min:") == 0)
623 { IS_NUMBER_OR_ZERO; cfg->val_sig_skew_min = (int32_t)atoi(val); }
624 else if(strcmp(opt, "val-sig-skew-max:") == 0)
625 { IS_NUMBER_OR_ZERO; cfg->val_sig_skew_max = (int32_t)atoi(val); }
626 else if (strcmp(opt, "outgoing-interface:") == 0) {
627 char* d = strdup(val);
629 (char**)reallocarray(NULL, (size_t)cfg->num_out_ifs+1, sizeof(char*));
630 if(!d || !oi) { free(d); free(oi); return -1; }
631 if(cfg->out_ifs && cfg->num_out_ifs) {
632 memmove(oi, cfg->out_ifs, cfg->num_out_ifs*sizeof(char*));
635 oi[cfg->num_out_ifs++] = d;
638 /* unknown or unsupported (from the set_option interface):
639 * interface, outgoing-interface, access-control,
640 * stub-zone, name, stub-addr, stub-host, stub-prime
641 * forward-first, stub-first, forward-ssl-upstream,
642 * stub-ssl-upstream, forward-zone, auth-zone
643 * name, forward-addr, forward-host,
644 * ratelimit-for-domain, ratelimit-below-domain,
645 * local-zone-tag, access-control-view,
646 * send-client-subnet, client-subnet-always-forward,
647 * max-client-subnet-ipv4, max-client-subnet-ipv6, ipsecmod_hook,
648 * ipsecmod_whitelist. */
654 void config_print_func(char* line, void* arg)
656 FILE* f = (FILE*)arg;
657 (void)fprintf(f, "%s\n", line);
660 /** collate func arg */
661 struct config_collate_arg {
662 /** list of result items */
663 struct config_strlist_head list;
664 /** if a malloc error occurred, 0 is OK */
668 void config_collate_func(char* line, void* arg)
670 struct config_collate_arg* m = (struct config_collate_arg*)arg;
673 if(!cfg_strlist_append(&m->list, strdup(line)))
677 int config_get_option_list(struct config_file* cfg, const char* opt,
678 struct config_strlist** list)
680 struct config_collate_arg m;
681 memset(&m, 0, sizeof(m));
683 if(!config_get_option(cfg, opt, config_collate_func, &m))
686 config_delstrlist(m.list.first);
689 *list = m.list.first;
694 config_get_option_collate(struct config_file* cfg, const char* opt, char** str)
696 struct config_strlist* list = NULL;
699 if((r = config_get_option_list(cfg, opt, &list)) != 0)
701 *str = config_collate_cat(list);
702 config_delstrlist(list);
708 config_collate_cat(struct config_strlist* list)
710 size_t total = 0, left;
711 struct config_strlist* s;
713 if(!list) /* no elements */
715 if(list->next == NULL) /* one element , no newline at end. */
716 return strdup(list->str);
717 /* count total length */
718 for(s=list; s; s=s->next)
719 total += strlen(s->str) + 1; /* len + newline */
720 left = total+1; /* one extra for nul at end */
725 for(s=list; s; s=s->next) {
726 size_t this = strlen(s->str);
727 if(this+2 > left) { /* sanity check */
731 snprintf(w, left, "%s\n", s->str);
739 /** compare and print decimal option */
740 #define O_DEC(opt, str, var) if(strcmp(opt, str)==0) \
741 {snprintf(buf, len, "%d", (int)cfg->var); \
743 /** compare and print unsigned option */
744 #define O_UNS(opt, str, var) if(strcmp(opt, str)==0) \
745 {snprintf(buf, len, "%u", (unsigned)cfg->var); \
747 /** compare and print yesno option */
748 #define O_YNO(opt, str, var) if(strcmp(opt, str)==0) \
749 {func(cfg->var?"yes":"no", arg);}
750 /** compare and print string option */
751 #define O_STR(opt, str, var) if(strcmp(opt, str)==0) \
752 {func(cfg->var?cfg->var:"", arg);}
753 /** compare and print array option */
754 #define O_IFC(opt, str, num, arr) if(strcmp(opt, str)==0) \
755 {int i; for(i=0; i<cfg->num; i++) func(cfg->arr[i], arg);}
756 /** compare and print memorysize option */
757 #define O_MEM(opt, str, var) if(strcmp(opt, str)==0) { \
758 if(cfg->var > 1024*1024*1024) { \
759 size_t f=cfg->var/(size_t)1000000, b=cfg->var%(size_t)1000000; \
760 snprintf(buf, len, "%u%6.6u", (unsigned)f, (unsigned)b); \
761 } else snprintf(buf, len, "%u", (unsigned)cfg->var); \
763 /** compare and print list option */
764 #define O_LST(opt, name, lst) if(strcmp(opt, name)==0) { \
765 struct config_strlist* p = cfg->lst; \
766 for(p = cfg->lst; p; p = p->next) \
769 /** compare and print list option */
770 #define O_LS2(opt, name, lst) if(strcmp(opt, name)==0) { \
771 struct config_str2list* p = cfg->lst; \
772 for(p = cfg->lst; p; p = p->next) { \
773 snprintf(buf, len, "%s %s", p->str, p->str2); \
777 /** compare and print list option */
778 #define O_LS3(opt, name, lst) if(strcmp(opt, name)==0) { \
779 struct config_str3list* p = cfg->lst; \
780 for(p = cfg->lst; p; p = p->next) { \
781 snprintf(buf, len, "%s %s %s", p->str, p->str2, p->str3); \
785 /** compare and print taglist option */
786 #define O_LTG(opt, name, lst) if(strcmp(opt, name)==0) { \
787 char* tmpstr = NULL; \
788 struct config_strbytelist *p = cfg->lst; \
789 for(p = cfg->lst; p; p = p->next) {\
790 tmpstr = config_taglist2str(cfg, p->str2, p->str2len); \
792 snprintf(buf, len, "%s %s", p->str, tmpstr); \
800 config_get_option(struct config_file* cfg, const char* opt,
801 void (*func)(char*,void*), void* arg)
804 size_t len = sizeof(buf);
805 fptr_ok(fptr_whitelist_print_func(func));
806 O_DEC(opt, "verbosity", verbosity)
807 else O_DEC(opt, "statistics-interval", stat_interval)
808 else O_YNO(opt, "statistics-cumulative", stat_cumulative)
809 else O_YNO(opt, "extended-statistics", stat_extended)
810 else O_YNO(opt, "shm-enable", shm_enable)
811 else O_DEC(opt, "shm-key", shm_key)
812 else O_YNO(opt, "use-syslog", use_syslog)
813 else O_STR(opt, "log-identity", log_identity)
814 else O_YNO(opt, "log-time-ascii", log_time_ascii)
815 else O_DEC(opt, "num-threads", num_threads)
816 else O_IFC(opt, "interface", num_ifs, ifs)
817 else O_IFC(opt, "outgoing-interface", num_out_ifs, out_ifs)
818 else O_YNO(opt, "interface-automatic", if_automatic)
819 else O_DEC(opt, "port", port)
820 else O_DEC(opt, "outgoing-range", outgoing_num_ports)
821 else O_DEC(opt, "outgoing-num-tcp", outgoing_num_tcp)
822 else O_DEC(opt, "incoming-num-tcp", incoming_num_tcp)
823 else O_DEC(opt, "edns-buffer-size", edns_buffer_size)
824 else O_DEC(opt, "msg-buffer-size", msg_buffer_size)
825 else O_MEM(opt, "msg-cache-size", msg_cache_size)
826 else O_DEC(opt, "msg-cache-slabs", msg_cache_slabs)
827 else O_DEC(opt, "num-queries-per-thread", num_queries_per_thread)
828 else O_UNS(opt, "jostle-timeout", jostle_time)
829 else O_MEM(opt, "so-rcvbuf", so_rcvbuf)
830 else O_MEM(opt, "so-sndbuf", so_sndbuf)
831 else O_YNO(opt, "so-reuseport", so_reuseport)
832 else O_YNO(opt, "ip-transparent", ip_transparent)
833 else O_YNO(opt, "ip-freebind", ip_freebind)
834 else O_MEM(opt, "rrset-cache-size", rrset_cache_size)
835 else O_DEC(opt, "rrset-cache-slabs", rrset_cache_slabs)
836 else O_YNO(opt, "prefetch-key", prefetch_key)
837 else O_YNO(opt, "prefetch", prefetch)
838 else O_DEC(opt, "cache-max-ttl", max_ttl)
839 else O_DEC(opt, "cache-max-negative-ttl", max_negative_ttl)
840 else O_DEC(opt, "cache-min-ttl", min_ttl)
841 else O_DEC(opt, "infra-host-ttl", host_ttl)
842 else O_DEC(opt, "infra-cache-slabs", infra_cache_slabs)
843 else O_DEC(opt, "infra-cache-min-rtt", infra_cache_min_rtt)
844 else O_MEM(opt, "infra-cache-numhosts", infra_cache_numhosts)
845 else O_UNS(opt, "delay-close", delay_close)
846 else O_YNO(opt, "do-ip4", do_ip4)
847 else O_YNO(opt, "do-ip6", do_ip6)
848 else O_YNO(opt, "do-udp", do_udp)
849 else O_YNO(opt, "do-tcp", do_tcp)
850 else O_YNO(opt, "tcp-upstream", tcp_upstream)
851 else O_YNO(opt, "udp-upstream-without-downstream", udp_upstream_without_downstream)
852 else O_DEC(opt, "tcp-mss", tcp_mss)
853 else O_DEC(opt, "outgoing-tcp-mss", outgoing_tcp_mss)
854 else O_YNO(opt, "ssl-upstream", ssl_upstream)
855 else O_STR(opt, "ssl-service-key", ssl_service_key)
856 else O_STR(opt, "ssl-service-pem", ssl_service_pem)
857 else O_DEC(opt, "ssl-port", ssl_port)
858 else O_STR(opt, "tls-cert-bundle", tls_cert_bundle)
859 else O_YNO(opt, "use-systemd", use_systemd)
860 else O_YNO(opt, "do-daemonize", do_daemonize)
861 else O_STR(opt, "chroot", chrootdir)
862 else O_STR(opt, "username", username)
863 else O_STR(opt, "directory", directory)
864 else O_STR(opt, "logfile", logfile)
865 else O_YNO(opt, "log-queries", log_queries)
866 else O_YNO(opt, "log-replies", log_replies)
867 else O_STR(opt, "pidfile", pidfile)
868 else O_YNO(opt, "hide-identity", hide_identity)
869 else O_YNO(opt, "hide-version", hide_version)
870 else O_YNO(opt, "hide-trustanchor", hide_trustanchor)
871 else O_STR(opt, "identity", identity)
872 else O_STR(opt, "version", version)
873 else O_STR(opt, "target-fetch-policy", target_fetch_policy)
874 else O_YNO(opt, "harden-short-bufsize", harden_short_bufsize)
875 else O_YNO(opt, "harden-large-queries", harden_large_queries)
876 else O_YNO(opt, "harden-glue", harden_glue)
877 else O_YNO(opt, "harden-dnssec-stripped", harden_dnssec_stripped)
878 else O_YNO(opt, "harden-below-nxdomain", harden_below_nxdomain)
879 else O_YNO(opt, "harden-referral-path", harden_referral_path)
880 else O_YNO(opt, "harden-algo-downgrade", harden_algo_downgrade)
881 else O_YNO(opt, "use-caps-for-id", use_caps_bits_for_id)
882 else O_LST(opt, "caps-whitelist", caps_whitelist)
883 else O_DEC(opt, "unwanted-reply-threshold", unwanted_threshold)
884 else O_YNO(opt, "do-not-query-localhost", donotquery_localhost)
885 else O_STR(opt, "module-config", module_conf)
886 else O_STR(opt, "dlv-anchor-file", dlv_anchor_file)
887 else O_DEC(opt, "val-bogus-ttl", bogus_ttl)
888 else O_YNO(opt, "val-clean-additional", val_clean_additional)
889 else O_DEC(opt, "val-log-level", val_log_level)
890 else O_YNO(opt, "val-permissive-mode", val_permissive_mode)
891 else O_YNO(opt, "aggressive-nsec:", aggressive_nsec)
892 else O_YNO(opt, "ignore-cd-flag", ignore_cd)
893 else O_YNO(opt, "serve-expired", serve_expired)
894 else O_STR(opt, "val-nsec3-keysize-iterations",val_nsec3_key_iterations)
895 else O_UNS(opt, "add-holddown", add_holddown)
896 else O_UNS(opt, "del-holddown", del_holddown)
897 else O_UNS(opt, "keep-missing", keep_missing)
898 else O_YNO(opt, "permit-small-holddown", permit_small_holddown)
899 else O_MEM(opt, "key-cache-size", key_cache_size)
900 else O_DEC(opt, "key-cache-slabs", key_cache_slabs)
901 else O_MEM(opt, "neg-cache-size", neg_cache_size)
902 else O_YNO(opt, "control-enable", remote_control_enable)
903 else O_DEC(opt, "control-port", control_port)
904 else O_STR(opt, "server-key-file", server_key_file)
905 else O_STR(opt, "server-cert-file", server_cert_file)
906 else O_STR(opt, "control-key-file", control_key_file)
907 else O_STR(opt, "control-cert-file", control_cert_file)
908 else O_LST(opt, "root-hints", root_hints)
909 else O_LS2(opt, "access-control", acls)
910 else O_LST(opt, "do-not-query-address", donotqueryaddrs)
911 else O_LST(opt, "private-address", private_address)
912 else O_LST(opt, "private-domain", private_domain)
913 else O_LST(opt, "auto-trust-anchor-file", auto_trust_anchor_file_list)
914 else O_LST(opt, "trust-anchor-file", trust_anchor_file_list)
915 else O_LST(opt, "trust-anchor", trust_anchor_list)
916 else O_LST(opt, "trusted-keys-file", trusted_keys_file_list)
917 else O_YNO(opt, "trust-anchor-signaling", trust_anchor_signaling)
918 else O_LST(opt, "dlv-anchor", dlv_anchor_list)
919 else O_LST(opt, "control-interface", control_ifs)
920 else O_LST(opt, "domain-insecure", domain_insecure)
921 else O_UNS(opt, "val-override-date", val_date_override)
922 else O_YNO(opt, "minimal-responses", minimal_responses)
923 else O_YNO(opt, "rrset-roundrobin", rrset_roundrobin)
925 else O_LST(opt, "send-client-subnet", client_subnet)
926 else O_LST(opt, "client-subnet-zone", client_subnet_zone)
927 else O_DEC(opt, "max-client-subnet-ipv4", max_client_subnet_ipv4)
928 else O_DEC(opt, "max-client-subnet-ipv6", max_client_subnet_ipv6)
929 else O_YNO(opt, "client-subnet-always-forward:",
930 client_subnet_always_forward)
933 else O_YNO(opt, "dnstap-enable", dnstap)
934 else O_STR(opt, "dnstap-socket-path", dnstap_socket_path)
935 else O_YNO(opt, "dnstap-send-identity", dnstap_send_identity)
936 else O_YNO(opt, "dnstap-send-version", dnstap_send_version)
937 else O_STR(opt, "dnstap-identity", dnstap_identity)
938 else O_STR(opt, "dnstap-version", dnstap_version)
939 else O_YNO(opt, "dnstap-log-resolver-query-messages",
940 dnstap_log_resolver_query_messages)
941 else O_YNO(opt, "dnstap-log-resolver-response-messages",
942 dnstap_log_resolver_response_messages)
943 else O_YNO(opt, "dnstap-log-client-query-messages",
944 dnstap_log_client_query_messages)
945 else O_YNO(opt, "dnstap-log-client-response-messages",
946 dnstap_log_client_response_messages)
947 else O_YNO(opt, "dnstap-log-forwarder-query-messages",
948 dnstap_log_forwarder_query_messages)
949 else O_YNO(opt, "dnstap-log-forwarder-response-messages",
950 dnstap_log_forwarder_response_messages)
953 else O_YNO(opt, "dnscrypt-enable", dnscrypt)
954 else O_DEC(opt, "dnscrypt-port", dnscrypt_port)
955 else O_STR(opt, "dnscrypt-provider", dnscrypt_provider)
956 else O_LST(opt, "dnscrypt-provider-cert", dnscrypt_provider_cert)
957 else O_LST(opt, "dnscrypt-provider-cert-rotated", dnscrypt_provider_cert_rotated)
958 else O_LST(opt, "dnscrypt-secret-key", dnscrypt_secret_key)
959 else O_MEM(opt, "dnscrypt-shared-secret-cache-size",
960 dnscrypt_shared_secret_cache_size)
961 else O_DEC(opt, "dnscrypt-shared-secret-cache-slabs",
962 dnscrypt_shared_secret_cache_slabs)
963 else O_MEM(opt, "dnscrypt-nonce-cache-size",
964 dnscrypt_nonce_cache_size)
965 else O_DEC(opt, "dnscrypt-nonce-cache-slabs",
966 dnscrypt_nonce_cache_slabs)
968 else O_YNO(opt, "unblock-lan-zones", unblock_lan_zones)
969 else O_YNO(opt, "insecure-lan-zones", insecure_lan_zones)
970 else O_DEC(opt, "max-udp-size", max_udp_size)
971 else O_STR(opt, "python-script", python_script)
972 else O_YNO(opt, "disable-dnssec-lame-check", disable_dnssec_lame_check)
973 else O_DEC(opt, "ip-ratelimit", ip_ratelimit)
974 else O_DEC(opt, "ratelimit", ratelimit)
975 else O_MEM(opt, "ip-ratelimit-size", ip_ratelimit_size)
976 else O_MEM(opt, "ratelimit-size", ratelimit_size)
977 else O_DEC(opt, "ip-ratelimit-slabs", ip_ratelimit_slabs)
978 else O_DEC(opt, "ratelimit-slabs", ratelimit_slabs)
979 else O_LS2(opt, "ratelimit-for-domain", ratelimit_for_domain)
980 else O_LS2(opt, "ratelimit-below-domain", ratelimit_below_domain)
981 else O_DEC(opt, "ip-ratelimit-factor", ip_ratelimit_factor)
982 else O_DEC(opt, "ratelimit-factor", ratelimit_factor)
983 else O_DEC(opt, "val-sig-skew-min", val_sig_skew_min)
984 else O_DEC(opt, "val-sig-skew-max", val_sig_skew_max)
985 else O_YNO(opt, "qname-minimisation", qname_minimisation)
986 else O_YNO(opt, "qname-minimisation-strict", qname_minimisation_strict)
987 else O_IFC(opt, "define-tag", num_tags, tagname)
988 else O_LTG(opt, "local-zone-tag", local_zone_tags)
989 else O_LTG(opt, "access-control-tag", acl_tags)
990 else O_LTG(opt, "response-ip-tag", respip_tags)
991 else O_LS3(opt, "local-zone-override", local_zone_overrides)
992 else O_LS3(opt, "access-control-tag-action", acl_tag_actions)
993 else O_LS3(opt, "access-control-tag-data", acl_tag_datas)
994 else O_LS2(opt, "access-control-view", acl_view)
996 else O_YNO(opt, "ipsecmod-enabled", ipsecmod_enabled)
997 else O_YNO(opt, "ipsecmod-ignore-bogus", ipsecmod_ignore_bogus)
998 else O_STR(opt, "ipsecmod-hook", ipsecmod_hook)
999 else O_DEC(opt, "ipsecmod-max-ttl", ipsecmod_max_ttl)
1000 else O_LST(opt, "ipsecmod-whitelist", ipsecmod_whitelist)
1001 else O_YNO(opt, "ipsecmod-strict", ipsecmod_strict)
1004 else O_STR(opt, "backend", cachedb_backend)
1005 else O_STR(opt, "secret-seed", cachedb_secret)
1008 * outgoing-permit, outgoing-avoid - have list of ports
1009 * local-zone - zones and nodefault variables
1010 * local-data - see below
1011 * local-data-ptr - converted to local-data entries
1012 * stub-zone, name, stub-addr, stub-host, stub-prime
1013 * forward-zone, name, forward-addr, forward-host
1019 /** initialize the global cfg_parser object */
1021 create_cfg_parser(struct config_file* cfg, char* filename, const char* chroot)
1023 static struct config_parser_state st;
1025 cfg_parser->filename = filename;
1026 cfg_parser->line = 1;
1027 cfg_parser->errors = 0;
1028 cfg_parser->cfg = cfg;
1029 cfg_parser->chroot = chroot;
1034 config_read(struct config_file* cfg, const char* filename, const char* chroot)
1037 char *fname = (char*)filename;
1046 /* check for wildcards */
1048 if(!(!strchr(fname, '*') && !strchr(fname, '?') && !strchr(fname, '[') &&
1049 !strchr(fname, '{') && !strchr(fname, '~'))) {
1050 verbose(VERB_QUERY, "wildcard found, processing %s", fname);
1065 memset(&g, 0, sizeof(g));
1066 r = glob(fname, flags, NULL, &g);
1070 if(r == GLOB_NOMATCH) {
1071 verbose(VERB_QUERY, "include: "
1072 "no matches for %s", fname);
1074 } else if(r == GLOB_NOSPACE) {
1075 log_err("include: %s: "
1076 "fnametern out of memory", fname);
1077 } else if(r == GLOB_ABORTED) {
1078 log_err("wildcard include: %s: expansion "
1079 "aborted (%s)", fname, strerror(errno));
1081 log_err("wildcard include: %s: expansion "
1082 "failed (%s)", fname, strerror(errno));
1084 /* ignore globs that yield no files */
1087 /* process files found, if any */
1088 for(i=0; i<(size_t)g.gl_pathc; i++) {
1089 if(!config_read(cfg, g.gl_pathv[i], chroot)) {
1090 log_err("error reading wildcard "
1091 "include: %s", g.gl_pathv[i]);
1099 #endif /* HAVE_GLOB */
1101 in = fopen(fname, "r");
1103 log_err("Could not open %s: %s", fname, strerror(errno));
1106 create_cfg_parser(cfg, fname, chroot);
1111 if(!cfg->dnscrypt) cfg->dnscrypt_port = 0;
1113 if(cfg_parser->errors != 0) {
1114 fprintf(stderr, "read %s failed: %d errors in configuration file\n",
1115 fname, cfg_parser->errors);
1123 struct config_stub* cfg_stub_find(struct config_stub*** pp, const char* nm)
1125 struct config_stub* p = *(*pp);
1127 if(strcmp(p->name, nm) == 0)
1136 config_delstrlist(struct config_strlist* p)
1138 struct config_strlist *np;
1148 config_deldblstrlist(struct config_str2list* p)
1150 struct config_str2list *np;
1161 config_deltrplstrlist(struct config_str3list* p)
1163 struct config_str3list *np;
1175 config_delauth(struct config_auth* p)
1179 config_delstrlist(p->masters);
1180 config_delstrlist(p->urls);
1186 config_delauths(struct config_auth* p)
1188 struct config_auth* np;
1197 config_delstub(struct config_stub* p)
1201 config_delstrlist(p->hosts);
1202 config_delstrlist(p->addrs);
1207 config_delstubs(struct config_stub* p)
1209 struct config_stub* np;
1218 config_delview(struct config_view* p)
1222 config_deldblstrlist(p->local_zones);
1223 config_delstrlist(p->local_zones_nodefault);
1224 config_delstrlist(p->local_data);
1229 config_delviews(struct config_view* p)
1231 struct config_view* np;
1238 /** delete string array */
1240 config_del_strarray(char** array, int num)
1245 for(i=0; i<num; i++) {
1252 config_del_strbytelist(struct config_strbytelist* p)
1254 struct config_strbytelist* np;
1265 config_delete(struct config_file* cfg)
1268 free(cfg->username);
1269 free(cfg->chrootdir);
1270 free(cfg->directory);
1273 free(cfg->target_fetch_policy);
1274 free(cfg->ssl_service_key);
1275 free(cfg->ssl_service_pem);
1276 free(cfg->tls_cert_bundle);
1277 free(cfg->log_identity);
1278 config_del_strarray(cfg->ifs, cfg->num_ifs);
1279 config_del_strarray(cfg->out_ifs, cfg->num_out_ifs);
1280 config_delstubs(cfg->stubs);
1281 config_delstubs(cfg->forwards);
1282 config_delauths(cfg->auths);
1283 config_delviews(cfg->views);
1284 config_delstrlist(cfg->donotqueryaddrs);
1285 config_delstrlist(cfg->root_hints);
1286 #ifdef CLIENT_SUBNET
1287 config_delstrlist(cfg->client_subnet);
1288 config_delstrlist(cfg->client_subnet_zone);
1290 free(cfg->identity);
1292 free(cfg->module_conf);
1293 free(cfg->outgoing_avail_ports);
1294 free(cfg->python_script);
1295 config_delstrlist(cfg->caps_whitelist);
1296 config_delstrlist(cfg->private_address);
1297 config_delstrlist(cfg->private_domain);
1298 config_delstrlist(cfg->auto_trust_anchor_file_list);
1299 config_delstrlist(cfg->trust_anchor_file_list);
1300 config_delstrlist(cfg->trusted_keys_file_list);
1301 config_delstrlist(cfg->trust_anchor_list);
1302 config_delstrlist(cfg->domain_insecure);
1303 free(cfg->dlv_anchor_file);
1304 config_delstrlist(cfg->dlv_anchor_list);
1305 config_deldblstrlist(cfg->acls);
1306 free(cfg->val_nsec3_key_iterations);
1307 config_deldblstrlist(cfg->local_zones);
1308 config_delstrlist(cfg->local_zones_nodefault);
1309 config_delstrlist(cfg->local_data);
1310 config_deltrplstrlist(cfg->local_zone_overrides);
1311 config_del_strarray(cfg->tagname, cfg->num_tags);
1312 config_del_strbytelist(cfg->local_zone_tags);
1313 config_del_strbytelist(cfg->acl_tags);
1314 config_del_strbytelist(cfg->respip_tags);
1315 config_deltrplstrlist(cfg->acl_tag_actions);
1316 config_deltrplstrlist(cfg->acl_tag_datas);
1317 config_delstrlist(cfg->control_ifs);
1318 free(cfg->server_key_file);
1319 free(cfg->server_cert_file);
1320 free(cfg->control_key_file);
1321 free(cfg->control_cert_file);
1322 free(cfg->dns64_prefix);
1323 free(cfg->dnstap_socket_path);
1324 free(cfg->dnstap_identity);
1325 free(cfg->dnstap_version);
1326 config_deldblstrlist(cfg->ratelimit_for_domain);
1327 config_deldblstrlist(cfg->ratelimit_below_domain);
1329 free(cfg->ipsecmod_hook);
1330 config_delstrlist(cfg->ipsecmod_whitelist);
1333 free(cfg->cachedb_backend);
1334 free(cfg->cachedb_secret);
1340 init_outgoing_availports(int* a, int num)
1342 /* generated with make iana_update */
1343 const int iana_assigned[] = {
1344 #include "util/iana_ports.inc"
1345 -1 }; /* end marker to put behind trailing comma */
1348 /* do not use <1024, that could be trouble with the system, privs */
1349 for(i=1024; i<num; i++) {
1352 /* create empty spot at 49152 to keep ephemeral ports available
1353 * to other programs */
1354 for(i=49152; i<49152+256; i++)
1356 /* pick out all the IANA assigned ports */
1357 for(i=0; iana_assigned[i]!=-1; i++) {
1358 if(iana_assigned[i] < num)
1359 a[iana_assigned[i]] = 0;
1364 cfg_mark_ports(const char* str, int allow, int* avail, int num)
1366 char* mid = strchr(str, '-');
1368 int port = atoi(str);
1369 if(port == 0 && strcmp(str, "0") != 0) {
1370 log_err("cannot parse port number '%s'", str);
1374 avail[port] = (allow?port:0);
1376 int i, low, high = atoi(mid+1);
1378 if(high == 0 && strcmp(mid+1, "0") != 0) {
1379 log_err("cannot parse port number '%s'", mid+1);
1382 if( (int)(mid-str)+1 >= (int)sizeof(buf) ) {
1383 log_err("cannot parse port number '%s'", str);
1387 memcpy(buf, str, (size_t)(mid-str));
1390 if(low == 0 && strcmp(buf, "0") != 0) {
1391 log_err("cannot parse port number '%s'", buf);
1394 for(i=low; i<=high; i++) {
1396 avail[i] = (allow?i:0);
1404 cfg_scan_ports(int* avail, int num)
1408 for(i=0; i<num; i++) {
1415 int cfg_condense_ports(struct config_file* cfg, int** avail)
1417 int num = cfg_scan_ports(cfg->outgoing_avail_ports, 65536);
1422 *avail = (int*)reallocarray(NULL, (size_t)num, sizeof(int));
1425 for(i=0; i<65536; i++) {
1426 if(cfg->outgoing_avail_ports[i])
1427 (*avail)[at++] = cfg->outgoing_avail_ports[i];
1429 log_assert(at == num);
1433 /** print error with file and line number */
1434 static void ub_c_error_va_list(const char *fmt, va_list args)
1436 cfg_parser->errors++;
1437 fprintf(stderr, "%s:%d: error: ", cfg_parser->filename,
1439 vfprintf(stderr, fmt, args);
1440 fprintf(stderr, "\n");
1443 /** print error with file and line number */
1444 void ub_c_error_msg(const char* fmt, ...)
1447 va_start(args, fmt);
1448 ub_c_error_va_list(fmt, args);
1452 void ub_c_error(const char *str)
1454 cfg_parser->errors++;
1455 fprintf(stderr, "%s:%d: error: %s\n", cfg_parser->filename,
1456 cfg_parser->line, str);
1464 int cfg_strlist_append(struct config_strlist_head* list, char* item)
1466 struct config_strlist *s;
1469 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist));
1475 list->last->next = s;
1483 cfg_region_strlist_insert(struct regional* region,
1484 struct config_strlist** head, char* item)
1486 struct config_strlist *s;
1489 s = (struct config_strlist*)regional_alloc_zero(region,
1490 sizeof(struct config_strlist));
1499 struct config_strlist*
1500 cfg_strlist_find(struct config_strlist* head, const char *item)
1502 struct config_strlist *s = head;
1507 if(strcmp(s->str, item) == 0) {
1516 cfg_strlist_insert(struct config_strlist** head, char* item)
1518 struct config_strlist *s;
1521 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist));
1531 cfg_str2list_insert(struct config_str2list** head, char* item, char* i2)
1533 struct config_str2list *s;
1534 if(!item || !i2 || !head)
1536 s = (struct config_str2list*)calloc(1, sizeof(struct config_str2list));
1547 cfg_str3list_insert(struct config_str3list** head, char* item, char* i2,
1550 struct config_str3list *s;
1551 if(!item || !i2 || !i3 || !head)
1553 s = (struct config_str3list*)calloc(1, sizeof(struct config_str3list));
1565 cfg_strbytelist_insert(struct config_strbytelist** head, char* item,
1566 uint8_t* i2, size_t i2len)
1568 struct config_strbytelist* s;
1569 if(!item || !i2 || !head)
1571 s = (struct config_strbytelist*)calloc(1, sizeof(*s));
1583 cfg_convert_timeval(const char* str)
1587 memset(&tm, 0, sizeof(tm));
1588 if(strlen(str) < 14)
1590 if(sscanf(str, "%4d%2d%2d%2d%2d%2d", &tm.tm_year, &tm.tm_mon,
1591 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) != 6)
1596 if (tm.tm_year < 70) return 0;
1597 if (tm.tm_mon < 0 || tm.tm_mon > 11) return 0;
1598 if (tm.tm_mday < 1 || tm.tm_mday > 31) return 0;
1599 if (tm.tm_hour < 0 || tm.tm_hour > 23) return 0;
1600 if (tm.tm_min < 0 || tm.tm_min > 59) return 0;
1601 if (tm.tm_sec < 0 || tm.tm_sec > 59) return 0;
1602 /* call ldns conversion function */
1603 t = sldns_mktime_from_utc(&tm);
1608 cfg_count_numbers(const char* s)
1610 /* format ::= (sp num)+ sp */
1611 /* num ::= [-](0-9)+ */
1612 /* sp ::= (space|tab)* */
1615 while(*s && isspace((unsigned char)*s))
1617 if(!*s) /* end of string */
1621 if(!*s) /* only - not allowed */
1623 if(!isdigit((unsigned char)*s)) /* bad character */
1625 while(*s && isdigit((unsigned char)*s))
1632 /** all digit number */
1633 static int isalldigit(const char* str, size_t l)
1637 if(!isdigit((unsigned char)str[i]))
1643 cfg_parse_memsize(const char* str, size_t* res)
1647 if(!str || (len=(size_t)strlen(str)) == 0) {
1648 log_err("not a size: '%s'", str);
1651 if(isalldigit(str, len)) {
1652 *res = (size_t)atol(str);
1655 /* check appended num */
1656 while(len>0 && str[len-1]==' ')
1658 if(len > 1 && str[len-1] == 'b')
1660 else if(len > 1 && str[len-1] == 'B')
1663 if(len > 1 && tolower((unsigned char)str[len-1]) == 'g')
1664 mult = 1024*1024*1024;
1665 else if(len > 1 && tolower((unsigned char)str[len-1]) == 'm')
1667 else if(len > 1 && tolower((unsigned char)str[len-1]) == 'k')
1669 else if(len > 0 && isdigit((unsigned char)str[len-1]))
1672 log_err("unknown size specifier: '%s'", str);
1675 while(len>1 && str[len-2]==' ')
1678 if(!isalldigit(str, len-1)) {
1679 log_err("unknown size specifier: '%s'", str);
1682 *res = ((size_t)atol(str)) * mult;
1687 find_tag_id(struct config_file* cfg, const char* tag)
1690 for(i=0; i<cfg->num_tags; i++) {
1691 if(strcmp(cfg->tagname[i], tag) == 0)
1698 config_add_tag(struct config_file* cfg, const char* tag)
1702 if(find_tag_id(cfg, tag) != -1)
1703 return 1; /* nothing to do */
1704 newarray = (char**)malloc(sizeof(char*)*(cfg->num_tags+1));
1707 newtag = strdup(tag);
1713 memcpy(newarray, cfg->tagname, sizeof(char*)*cfg->num_tags);
1716 newarray[cfg->num_tags++] = newtag;
1717 cfg->tagname = newarray;
1721 /** set a bit in a bit array */
1723 cfg_set_bit(uint8_t* bitlist, size_t len, int id)
1726 log_assert((size_t)pos < len);
1728 bitlist[pos] |= 1<<(id%8);
1731 uint8_t* config_parse_taglist(struct config_file* cfg, char* str,
1734 uint8_t* taglist = NULL;
1739 if(cfg->num_tags == 0) {
1740 log_err("parse taglist, but no tags defined");
1743 len = (size_t)(cfg->num_tags+7)/8;
1744 taglist = calloc(1, len);
1746 log_err("out of memory");
1752 while((p=strsep(&s, " \t\n")) != NULL) {
1754 int id = find_tag_id(cfg, p);
1755 /* set this bit in the bitlist */
1757 log_err("unknown tag: %s", p);
1761 cfg_set_bit(taglist, len, id);
1769 char* config_taglist2str(struct config_file* cfg, uint8_t* taglist,
1773 size_t i, j, len = 0;
1775 for(i=0; i<taglen; i++) {
1778 for(j=0; j<8; j++) {
1779 if((taglist[i] & (1<<j)) != 0) {
1780 size_t id = i*8 + j;
1781 snprintf(buf+len, sizeof(buf)-len, "%s%s",
1782 (len==0?"":" "), cfg->tagname[id]);
1783 len += strlen(buf+len);
1790 int taglist_intersect(uint8_t* list1, size_t list1len, uint8_t* list2,
1794 if(!list1 || !list2)
1796 for(i=0; i<list1len && i<list2len; i++) {
1797 if((list1[i] & list2[i]) != 0)
1804 config_apply(struct config_file* config)
1806 MAX_TTL = (time_t)config->max_ttl;
1807 MIN_TTL = (time_t)config->min_ttl;
1808 MAX_NEG_TTL = (time_t)config->max_negative_ttl;
1809 RTT_MIN_TIMEOUT = config->infra_cache_min_rtt;
1810 EDNS_ADVERTISED_SIZE = (uint16_t)config->edns_buffer_size;
1811 MINIMAL_RESPONSES = config->minimal_responses;
1812 RRSET_ROUNDROBIN = config->rrset_roundrobin;
1813 log_set_time_asc(config->log_time_ascii);
1814 autr_permit_small_holddown = config->permit_small_holddown;
1817 void config_lookup_uid(struct config_file* cfg)
1819 #ifdef HAVE_GETPWNAM
1820 /* translate username into uid and gid */
1821 if(cfg->username && cfg->username[0]) {
1823 if((pwd = getpwnam(cfg->username)) != NULL) {
1824 cfg_uid = pwd->pw_uid;
1825 cfg_gid = pwd->pw_gid;
1834 * Calculate string length of full pathname in original filesys
1835 * @param fname: the path name to convert.
1836 * Must not be null or empty.
1837 * @param cfg: config struct for chroot and chdir (if set).
1838 * @param use_chdir: if false, only chroot is applied.
1839 * @return length of string.
1840 * remember to allocate one more for 0 at end in mallocs.
1843 strlen_after_chroot(const char* fname, struct config_file* cfg, int use_chdir)
1847 if(cfg->chrootdir && cfg->chrootdir[0] &&
1848 strncmp(cfg->chrootdir, fname, strlen(cfg->chrootdir)) == 0) {
1849 /* already full pathname, return it */
1850 return strlen(fname);
1853 if(cfg->chrootdir && cfg->chrootdir[0]) {
1854 /* start with chrootdir */
1855 len += strlen(cfg->chrootdir);
1859 #ifdef UB_ON_WINDOWS
1860 if(fname[0] != 0 && fname[1] == ':') {
1861 /* full path, no chdir */
1864 if(fname[0] == '/' || !use_chdir) {
1865 /* full path, no chdir */
1866 } else if(cfg->directory && cfg->directory[0]) {
1868 if(slashit && cfg->directory[0] != '/')
1870 if(cfg->chrootdir && cfg->chrootdir[0] &&
1871 strncmp(cfg->chrootdir, cfg->directory,
1872 strlen(cfg->chrootdir)) == 0)
1873 len += strlen(cfg->directory)-strlen(cfg->chrootdir);
1874 else len += strlen(cfg->directory);
1878 if(slashit && fname[0] != '/')
1880 len += strlen(fname);
1885 fname_after_chroot(const char* fname, struct config_file* cfg, int use_chdir)
1887 size_t len = strlen_after_chroot(fname, cfg, use_chdir)+1;
1889 char* buf = (char*)malloc(len);
1893 /* is fname already in chroot ? */
1894 if(cfg->chrootdir && cfg->chrootdir[0] &&
1895 strncmp(cfg->chrootdir, fname, strlen(cfg->chrootdir)) == 0) {
1896 /* already full pathname, return it */
1897 (void)strlcpy(buf, fname, len);
1902 if(cfg->chrootdir && cfg->chrootdir[0]) {
1903 /* start with chrootdir */
1904 (void)strlcpy(buf, cfg->chrootdir, len);
1907 #ifdef UB_ON_WINDOWS
1908 if(fname[0] != 0 && fname[1] == ':') {
1909 /* full path, no chdir */
1913 if(fname[0] == '/' || !use_chdir) {
1914 /* full path, no chdir */
1915 } else if(cfg->directory && cfg->directory[0]) {
1917 if(slashit && cfg->directory[0] != '/')
1918 (void)strlcat(buf, "/", len);
1919 /* is the directory already in the chroot? */
1920 if(cfg->chrootdir && cfg->chrootdir[0] &&
1921 strncmp(cfg->chrootdir, cfg->directory,
1922 strlen(cfg->chrootdir)) == 0)
1923 (void)strlcat(buf, cfg->directory+strlen(cfg->chrootdir),
1925 else (void)strlcat(buf, cfg->directory, len);
1929 if(slashit && fname[0] != '/')
1930 (void)strlcat(buf, "/", len);
1931 (void)strlcat(buf, fname, len);
1936 /** return next space character in string */
1937 static char* next_space_pos(const char* str)
1939 char* sp = strchr(str, ' ');
1940 char* tab = strchr(str, '\t');
1945 return (sp<tab)?sp:tab;
1948 /** return last space character in string */
1949 static char* last_space_pos(const char* str)
1951 char* sp = strrchr(str, ' ');
1952 char* tab = strrchr(str, '\t');
1957 return (sp>tab)?sp:tab;
1961 cfg_parse_local_zone(struct config_file* cfg, const char* val)
1963 const char *type, *name_end, *name;
1966 /* parse it as: [zone_name] [between stuff] [zone_type] */
1968 while(*name && isspace((unsigned char)*name))
1971 log_err("syntax error: too short: %s", val);
1974 name_end = next_space_pos(name);
1975 if(!name_end || !*name_end) {
1976 log_err("syntax error: expected zone type: %s", val);
1979 if (name_end - name > 255) {
1980 log_err("syntax error: bad zone name: %s", val);
1983 (void)strlcpy(buf, name, sizeof(buf));
1984 buf[name_end-name] = '\0';
1986 type = last_space_pos(name_end);
1987 while(type && *type && isspace((unsigned char)*type))
1989 if(!type || !*type) {
1990 log_err("syntax error: expected zone type: %s", val);
1994 if(strcmp(type, "nodefault")==0) {
1995 return cfg_strlist_insert(&cfg->local_zones_nodefault,
1998 return cfg_str2list_insert(&cfg->local_zones, strdup(buf),
2003 char* cfg_ptr_reverse(char* str)
2009 struct sockaddr_storage addr;
2012 /* parse it as: [IP] [between stuff] [name] */
2014 while(*ip && isspace((unsigned char)*ip))
2017 log_err("syntax error: too short: %s", str);
2020 ip_end = next_space_pos(ip);
2021 if(!ip_end || !*ip_end) {
2022 log_err("syntax error: expected name: %s", str);
2026 name = last_space_pos(ip_end);
2027 if(!name || !*name) {
2028 log_err("syntax error: expected name: %s", str);
2032 sscanf(ip, "%100s", buf);
2033 buf[sizeof(buf)-1]=0;
2035 if(!ipstrtoaddr(buf, UNBOUND_DNS_PORT, &addr, &addrlen)) {
2036 log_err("syntax error: cannot parse address: %s", str);
2041 * ddd.ddd.ddd.ddd.in-addr-arpa.
2042 * IPv6: (h.){32}.ip6.arpa. */
2044 if(addr_is_ip6(&addr, addrlen)) {
2046 const char* hex = "0123456789abcdef";
2049 memmove(ad, &((struct sockaddr_in6*)&addr)->sin6_addr,
2051 for(i=15; i>=0; i--) {
2053 *p++ = hex[ (b&0x0f) ];
2055 *p++ = hex[ (b&0xf0) >> 4 ];
2058 snprintf(buf+16*4, sizeof(buf)-16*4, "ip6.arpa. ");
2061 memmove(ad, &((struct sockaddr_in*)&addr)->sin_addr,
2063 snprintf(buf, sizeof(buf), "%u.%u.%u.%u.in-addr.arpa. ",
2064 (unsigned)ad[3], (unsigned)ad[2],
2065 (unsigned)ad[1], (unsigned)ad[0]);
2068 /* printed the reverse address, now the between goop and name on end */
2069 while(*ip_end && isspace((unsigned char)*ip_end))
2072 snprintf(buf+strlen(buf), sizeof(buf)-strlen(buf), "%.*s",
2073 (int)(name-ip_end), ip_end);
2075 snprintf(buf+strlen(buf), sizeof(buf)-strlen(buf), " PTR %s", name);
2077 result = strdup(buf);
2079 log_err("out of memory parsing %s", str);
2085 #ifdef UB_ON_WINDOWS
2087 w_lookup_reg_str(const char* key, const char* name)
2092 DWORD len = (DWORD)sizeof(buf);
2094 char* result = NULL;
2095 ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &hk);
2096 if(ret == ERROR_FILE_NOT_FOUND)
2097 return NULL; /* key does not exist */
2098 else if(ret != ERROR_SUCCESS) {
2099 log_err("RegOpenKeyEx failed");
2102 ret = RegQueryValueEx(hk, (LPCTSTR)name, 0, &type, buf, &len);
2104 log_err("RegCloseKey");
2105 if(ret == ERROR_FILE_NOT_FOUND)
2106 return NULL; /* name does not exist */
2107 else if(ret != ERROR_SUCCESS) {
2108 log_err("RegQueryValueEx failed");
2111 if(type == REG_SZ || type == REG_MULTI_SZ || type == REG_EXPAND_SZ) {
2112 buf[sizeof(buf)-1] = 0;
2113 buf[sizeof(buf)-2] = 0; /* for multi_sz */
2114 result = strdup((char*)buf);
2115 if(!result) log_err("out of memory");
2120 void w_config_adjust_directory(struct config_file* cfg)
2122 if(cfg->directory && cfg->directory[0]) {
2123 TCHAR dirbuf[2*MAX_PATH+4];
2124 if(strcmp(cfg->directory, "%EXECUTABLE%") == 0) {
2125 /* get executable path, and if that contains
2126 * directories, snip off the filename part */
2128 if(!GetModuleFileName(NULL, dirbuf, MAX_PATH))
2129 log_err("could not GetModuleFileName");
2130 if(strrchr(dirbuf, '\\')) {
2131 (strrchr(dirbuf, '\\'))[0] = 0;
2132 } else log_err("GetModuleFileName had no path");
2134 /* adjust directory for later lookups to work*/
2135 free(cfg->directory);
2136 cfg->directory = memdup(dirbuf, strlen(dirbuf)+1);
2141 #endif /* UB_ON_WINDOWS */
2143 void errinf(struct module_qstate* qstate, const char* str)
2145 struct config_strlist* p;
2146 if(qstate->env->cfg->val_log_level < 2 || !str)
2148 p = (struct config_strlist*)regional_alloc(qstate->region, sizeof(*p));
2150 log_err("malloc failure in validator-error-info string");
2154 p->str = regional_strdup(qstate->region, str);
2156 log_err("malloc failure in validator-error-info string");
2160 if(qstate->errinf) {
2161 struct config_strlist* q = qstate->errinf;
2165 } else qstate->errinf = p;
2168 void errinf_origin(struct module_qstate* qstate, struct sock_list *origin)
2170 struct sock_list* p;
2171 if(qstate->env->cfg->val_log_level < 2)
2173 for(p=origin; p; p=p->next) {
2176 snprintf(buf, sizeof(buf), "from ");
2177 else snprintf(buf, sizeof(buf), "and ");
2179 snprintf(buf+strlen(buf), sizeof(buf)-strlen(buf),
2182 addr_to_str(&p->addr, p->len, buf+strlen(buf),
2183 sizeof(buf)-strlen(buf));
2184 errinf(qstate, buf);
2188 char* errinf_to_str(struct module_qstate* qstate)
2192 size_t left = sizeof(buf);
2193 struct config_strlist* s;
2194 char dname[LDNS_MAX_DOMAINLEN+1];
2196 sldns_wire2str_type_buf(qstate->qinfo.qtype, t, sizeof(t));
2197 sldns_wire2str_class_buf(qstate->qinfo.qclass, c, sizeof(c));
2198 dname_str(qstate->qinfo.qname, dname);
2199 snprintf(p, left, "validation failure <%s %s %s>:", dname, t, c);
2200 left -= strlen(p); p += strlen(p);
2202 snprintf(p, left, " misc failure");
2203 else for(s=qstate->errinf; s; s=s->next) {
2204 snprintf(p, left, " %s", s->str);
2205 left -= strlen(p); p += strlen(p);
2209 log_err("malloc failure in errinf_to_str");
2213 void errinf_rrset(struct module_qstate* qstate, struct ub_packed_rrset_key *rr)
2216 char dname[LDNS_MAX_DOMAINLEN+1];
2218 if(qstate->env->cfg->val_log_level < 2 || !rr)
2220 sldns_wire2str_type_buf(ntohs(rr->rk.type), t, sizeof(t));
2221 sldns_wire2str_class_buf(ntohs(rr->rk.rrset_class), c, sizeof(c));
2222 dname_str(rr->rk.dname, dname);
2223 snprintf(buf, sizeof(buf), "for <%s %s %s>", dname, t, c);
2224 errinf(qstate, buf);
2227 void errinf_dname(struct module_qstate* qstate, const char* str, uint8_t* dname)
2230 char buf[LDNS_MAX_DOMAINLEN+1];
2231 if(qstate->env->cfg->val_log_level < 2 || !str || !dname)
2233 dname_str(dname, buf);
2234 snprintf(b, sizeof(b), "%s %s", str, buf);