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"
58 #include "util/random.h"
60 #include "services/cache/infra.h"
61 #include "sldns/wire2str.h"
62 #include "sldns/parseutil.h"
63 #include "iterator/iterator.h"
68 #include "edns-subnet/edns-subnet.h"
74 /** from cfg username, after daemonize setup performed */
75 uid_t cfg_uid = (uid_t)-1;
76 /** from cfg username, after daemonize setup performed */
77 gid_t cfg_gid = (gid_t)-1;
78 /** for debug allow small timeout values for fast rollovers */
79 int autr_permit_small_holddown = 0;
80 /** size (in bytes) of stream wait buffers max */
81 size_t stream_wait_max = 4 * 1024 * 1024;
82 size_t http2_query_buffer_max = 4 * 1024 * 1024;
83 size_t http2_response_buffer_max = 4 * 1024 * 1024;
85 /** global config during parsing */
86 struct config_parser_state* cfg_parser = 0;
88 /** init ports possible for use */
89 static void init_outgoing_availports(int* array, int num);
91 /** init cookie with random data */
92 static void init_cookie_secret(uint8_t* cookie_secret, size_t cookie_secret_len);
97 struct config_file* cfg;
98 cfg = (struct config_file*)calloc(1, sizeof(struct config_file));
101 /* the defaults if no config is present */
103 cfg->stat_interval = 0;
104 cfg->stat_cumulative = 0;
105 cfg->stat_extended = 0;
106 cfg->stat_inhibit_zero = 1;
107 cfg->num_threads = 1;
108 cfg->port = UNBOUND_DNS_PORT;
113 cfg->tcp_reuse_timeout = 60 * 1000; /* 60s in milisecs */
114 cfg->max_reuse_tcp_queries = 200;
115 cfg->tcp_upstream = 0;
116 cfg->udp_upstream_without_downstream = 0;
118 cfg->outgoing_tcp_mss = 0;
119 cfg->tcp_idle_timeout = 30 * 1000; /* 30s in millisecs */
120 cfg->tcp_auth_query_timeout = 3 * 1000; /* 3s in millisecs */
121 cfg->do_tcp_keepalive = 0;
122 cfg->tcp_keepalive_timeout = 120 * 1000; /* 120s in millisecs */
123 cfg->sock_queue_timeout = 0; /* do not check timeout */
124 cfg->ssl_service_key = NULL;
125 cfg->ssl_service_pem = NULL;
126 cfg->ssl_port = UNBOUND_DNS_OVER_TLS_PORT;
127 cfg->ssl_upstream = 0;
128 cfg->tls_cert_bundle = NULL;
129 cfg->tls_win_cert = 0;
130 cfg->tls_use_sni = 1;
131 cfg->https_port = UNBOUND_DNS_OVER_HTTPS_PORT;
132 if(!(cfg->http_endpoint = strdup("/dns-query"))) goto error_exit;
133 cfg->http_max_streams = 100;
134 cfg->http_query_buffer_size = 4*1024*1024;
135 cfg->http_response_buffer_size = 4*1024*1024;
136 cfg->http_nodelay = 1;
138 cfg->log_identity = NULL; /* changed later with argv[0] */
139 cfg->log_time_ascii = 0;
140 cfg->log_queries = 0;
141 cfg->log_replies = 0;
142 cfg->log_tag_queryreply = 0;
143 cfg->log_local_actions = 0;
144 cfg->log_servfail = 0;
146 # ifdef USE_MINI_EVENT
147 /* select max 1024 sockets */
148 cfg->outgoing_num_ports = 960;
149 cfg->num_queries_per_thread = 512;
151 /* libevent can use many sockets */
152 cfg->outgoing_num_ports = 4096;
153 cfg->num_queries_per_thread = 1024;
155 cfg->outgoing_num_tcp = 10;
156 cfg->incoming_num_tcp = 10;
158 cfg->outgoing_num_ports = 48; /* windows is limited in num fds */
159 cfg->num_queries_per_thread = 24;
160 cfg->outgoing_num_tcp = 2; /* leaves 64-52=12 for: 4if,1stop,thread4 */
161 cfg->incoming_num_tcp = 2;
163 cfg->stream_wait_size = 4 * 1024 * 1024;
164 cfg->edns_buffer_size = 1232; /* from DNS flagday recommendation */
165 cfg->msg_buffer_size = 65552; /* 64 k + a small margin */
166 cfg->msg_cache_size = 4 * 1024 * 1024;
167 cfg->msg_cache_slabs = 4;
168 cfg->jostle_time = 200;
169 cfg->rrset_cache_size = 4 * 1024 * 1024;
170 cfg->rrset_cache_slabs = 4;
174 cfg->max_ttl = 3600 * 24;
175 cfg->max_negative_ttl = 3600;
177 cfg->prefetch_key = 0;
179 cfg->infra_cache_slabs = 4;
180 cfg->infra_cache_numhosts = 10000;
181 cfg->infra_cache_min_rtt = 50;
182 cfg->infra_cache_max_rtt = 120000;
183 cfg->infra_keep_probing = 0;
184 cfg->delay_close = 0;
185 cfg->udp_connect = 1;
186 if(!(cfg->outgoing_avail_ports = (int*)calloc(65536, sizeof(int))))
188 init_outgoing_availports(cfg->outgoing_avail_ports, 65536);
189 if(!(cfg->username = strdup(UB_USERNAME))) goto error_exit;
191 if(!(cfg->chrootdir = strdup(CHROOT_DIR))) goto error_exit;
193 if(!(cfg->directory = strdup(RUN_DIR))) goto error_exit;
194 if(!(cfg->logfile = strdup(""))) goto error_exit;
195 if(!(cfg->pidfile = strdup(PIDFILE))) goto error_exit;
196 if(!(cfg->target_fetch_policy = strdup("3 2 1 0 0"))) goto error_exit;
197 cfg->fast_server_permil = 0;
198 cfg->fast_server_num = 3;
199 cfg->donotqueryaddrs = NULL;
200 cfg->donotquery_localhost = 1;
201 cfg->root_hints = NULL;
202 cfg->use_systemd = 0;
203 cfg->do_daemonize = 1;
204 cfg->if_automatic = 0;
205 cfg->if_automatic_ports = NULL;
208 cfg->so_reuseport = REUSEPORT_DEFAULT;
209 cfg->ip_transparent = 0;
210 cfg->ip_freebind = 0;
214 cfg->num_out_ifs = 0;
217 cfg->forwards = NULL;
220 cfg->client_subnet = NULL;
221 cfg->client_subnet_zone = NULL;
222 cfg->client_subnet_opcode = LDNS_EDNS_CLIENT_SUBNET;
223 cfg->client_subnet_always_forward = 0;
224 cfg->max_client_subnet_ipv4 = 24;
225 cfg->max_client_subnet_ipv6 = 56;
226 cfg->min_client_subnet_ipv4 = 0;
227 cfg->min_client_subnet_ipv6 = 0;
228 cfg->max_ecs_tree_size_ipv4 = 100;
229 cfg->max_ecs_tree_size_ipv6 = 100;
233 cfg->tcp_connection_limits = NULL;
234 cfg->harden_short_bufsize = 1;
235 cfg->harden_large_queries = 0;
236 cfg->harden_glue = 1;
237 cfg->harden_dnssec_stripped = 1;
238 cfg->harden_below_nxdomain = 1;
239 cfg->harden_referral_path = 0;
240 cfg->harden_algo_downgrade = 0;
241 cfg->harden_unknown_additional = 0;
242 cfg->use_caps_bits_for_id = 0;
243 cfg->caps_whitelist = NULL;
244 cfg->private_address = NULL;
245 cfg->private_domain = NULL;
246 cfg->unwanted_threshold = 0;
247 cfg->hide_identity = 0;
248 cfg->hide_version = 0;
249 cfg->hide_trustanchor = 0;
250 cfg->hide_http_user_agent = 0;
251 cfg->identity = NULL;
253 cfg->http_user_agent = NULL;
254 cfg->nsid_cfg_str = NULL;
257 cfg->auto_trust_anchor_file_list = NULL;
258 cfg->trust_anchor_file_list = NULL;
259 cfg->trust_anchor_list = NULL;
260 cfg->trusted_keys_file_list = NULL;
261 cfg->trust_anchor_signaling = 1;
262 cfg->root_key_sentinel = 1;
263 cfg->domain_insecure = NULL;
264 cfg->val_date_override = 0;
265 cfg->val_sig_skew_min = 3600; /* at least daylight savings trouble */
266 cfg->val_sig_skew_max = 86400; /* at most timezone settings trouble */
267 cfg->val_max_restart = 5;
268 cfg->val_clean_additional = 1;
269 cfg->val_log_level = 0;
270 cfg->val_log_squelch = 0;
271 cfg->val_permissive_mode = 0;
272 cfg->aggressive_nsec = 1;
274 cfg->serve_expired = 0;
275 cfg->serve_expired_ttl = 0;
276 cfg->serve_expired_ttl_reset = 0;
277 cfg->serve_expired_reply_ttl = 30;
278 cfg->serve_expired_client_timeout = 0;
279 cfg->ede_serve_expired = 0;
280 cfg->serve_original_ttl = 0;
281 cfg->zonemd_permissive_mode = 0;
282 cfg->add_holddown = 30*24*3600;
283 cfg->del_holddown = 30*24*3600;
284 cfg->keep_missing = 366*24*3600; /* one year plus a little leeway */
285 cfg->permit_small_holddown = 0;
286 cfg->key_cache_size = 4 * 1024 * 1024;
287 cfg->key_cache_slabs = 4;
288 cfg->neg_cache_size = 1 * 1024 * 1024;
289 cfg->local_zones = NULL;
290 cfg->local_zones_nodefault = NULL;
292 cfg->local_zones_ipset = NULL;
294 cfg->local_zones_disable_default = 0;
295 cfg->local_data = NULL;
296 cfg->local_zone_overrides = NULL;
297 cfg->unblock_lan_zones = 0;
298 cfg->insecure_lan_zones = 0;
299 cfg->python_script = NULL;
300 cfg->dynlib_file = NULL;
301 cfg->remote_control_enable = 0;
302 cfg->control_ifs.first = NULL;
303 cfg->control_ifs.last = NULL;
304 cfg->control_port = UNBOUND_CONTROL_PORT;
305 cfg->control_use_cert = 1;
306 cfg->minimal_responses = 1;
307 cfg->rrset_roundrobin = 1;
308 cfg->unknown_server_time_limit = 376;
309 cfg->max_udp_size = 1232; /* value taken from edns_buffer_size */
310 if(!(cfg->server_key_file = strdup(RUN_DIR"/unbound_server.key")))
312 if(!(cfg->server_cert_file = strdup(RUN_DIR"/unbound_server.pem")))
314 if(!(cfg->control_key_file = strdup(RUN_DIR"/unbound_control.key")))
316 if(!(cfg->control_cert_file = strdup(RUN_DIR"/unbound_control.pem")))
320 if(!(cfg->module_conf = strdup("subnetcache validator iterator"))) goto error_exit;
322 if(!(cfg->module_conf = strdup("validator iterator"))) goto error_exit;
324 if(!(cfg->val_nsec3_key_iterations =
325 strdup("1024 150 2048 150 4096 150"))) goto error_exit;
326 #if defined(DNSTAP_SOCKET_PATH)
327 if(!(cfg->dnstap_socket_path = strdup(DNSTAP_SOCKET_PATH)))
330 cfg->dnstap_bidirectional = 1;
332 cfg->disable_dnssec_lame_check = 0;
333 cfg->ip_ratelimit_cookie = 0;
334 cfg->ip_ratelimit = 0;
336 cfg->ip_ratelimit_slabs = 4;
337 cfg->ratelimit_slabs = 4;
338 cfg->ip_ratelimit_size = 4*1024*1024;
339 cfg->ratelimit_size = 4*1024*1024;
340 cfg->ratelimit_for_domain = NULL;
341 cfg->ratelimit_below_domain = NULL;
342 cfg->ip_ratelimit_factor = 10;
343 cfg->ratelimit_factor = 10;
344 cfg->ip_ratelimit_backoff = 0;
345 cfg->ratelimit_backoff = 0;
346 cfg->outbound_msg_retry = 5;
347 cfg->max_sent_count = 32;
348 cfg->max_query_restarts = 11;
349 cfg->qname_minimisation = 1;
350 cfg->qname_minimisation_strict = 0;
352 cfg->shm_key = 11777;
353 cfg->edns_client_strings = NULL;
354 cfg->edns_client_string_opcode = 65001;
356 cfg->dnscrypt_port = 0;
357 cfg->dnscrypt_provider = NULL;
358 cfg->dnscrypt_provider_cert = NULL;
359 cfg->dnscrypt_provider_cert_rotated = NULL;
360 cfg->dnscrypt_secret_key = NULL;
361 cfg->dnscrypt_shared_secret_cache_size = 4*1024*1024;
362 cfg->dnscrypt_shared_secret_cache_slabs = 4;
363 cfg->dnscrypt_nonce_cache_size = 4*1024*1024;
364 cfg->dnscrypt_nonce_cache_slabs = 4;
365 cfg->pad_responses = 1;
366 cfg->pad_responses_block_size = 468; /* from RFC8467 */
367 cfg->pad_queries = 1;
368 cfg->pad_queries_block_size = 128; /* from RFC8467 */
370 cfg->ipsecmod_enabled = 1;
371 cfg->ipsecmod_ignore_bogus = 0;
372 cfg->ipsecmod_hook = NULL;
373 cfg->ipsecmod_max_ttl = 3600;
374 cfg->ipsecmod_whitelist = NULL;
375 cfg->ipsecmod_strict = 0;
377 cfg->do_answer_cookie = 0;
378 memset(cfg->cookie_secret, 0, sizeof(cfg->cookie_secret));
379 cfg->cookie_secret_len = 16;
380 init_cookie_secret(cfg->cookie_secret, cfg->cookie_secret_len);
382 if(!(cfg->cachedb_backend = strdup("testframe"))) goto error_exit;
383 if(!(cfg->cachedb_secret = strdup("default"))) goto error_exit;
385 if(!(cfg->redis_server_host = strdup("127.0.0.1"))) goto error_exit;
386 cfg->redis_server_path = NULL;
387 cfg->redis_server_password = NULL;
388 cfg->redis_timeout = 100;
389 cfg->redis_server_port = 6379;
390 cfg->redis_expire_records = 0;
391 #endif /* USE_REDIS */
392 #endif /* USE_CACHEDB */
394 cfg->ipset_name_v4 = NULL;
395 cfg->ipset_name_v6 = NULL;
404 struct config_file* config_create_forlib(void)
406 struct config_file* cfg = config_create();
407 if(!cfg) return NULL;
408 /* modifications for library use, less verbose, less memory */
409 free(cfg->chrootdir);
410 cfg->chrootdir = NULL;
412 cfg->outgoing_num_ports = 16; /* in library use, this is 'reasonable'
413 and probably within the ulimit(maxfds) of the user */
414 cfg->outgoing_num_tcp = 2;
415 cfg->msg_cache_size = 1024*1024;
416 cfg->msg_cache_slabs = 1;
417 cfg->rrset_cache_size = 1024*1024;
418 cfg->rrset_cache_slabs = 1;
419 cfg->infra_cache_slabs = 1;
421 cfg->key_cache_size = 1024*1024;
422 cfg->key_cache_slabs = 1;
423 cfg->neg_cache_size = 100 * 1024;
424 cfg->donotquery_localhost = 0; /* allow, so that you can ask a
425 forward nameserver running on localhost */
426 cfg->val_log_level = 2; /* to fill why_bogus with */
427 cfg->val_log_squelch = 1;
428 cfg->minimal_responses = 0;
429 cfg->harden_short_bufsize = 1;
433 /** check that the value passed is >= 0 */
434 #define IS_NUMBER_OR_ZERO \
435 if(atoi(val) == 0 && strcmp(val, "0") != 0) return 0
436 /** check that the value passed is > 0 */
437 #define IS_NONZERO_NUMBER \
438 if(atoi(val) == 0) return 0
439 /** check that the value passed is not 0 and a power of 2 */
440 #define IS_POW2_NUMBER \
441 if(atoi(val) == 0 || !is_pow2((size_t)atoi(val))) return 0
442 /** check that the value passed is yes or no */
443 #define IS_YES_OR_NO \
444 if(strcmp(val, "yes") != 0 && strcmp(val, "no") != 0) return 0
445 /** put integer_or_zero into variable */
446 #define S_NUMBER_OR_ZERO(str, var) if(strcmp(opt, str) == 0) \
447 { IS_NUMBER_OR_ZERO; cfg->var = atoi(val); }
448 /** put integer_nonzero into variable */
449 #define S_NUMBER_NONZERO(str, var) if(strcmp(opt, str) == 0) \
450 { IS_NONZERO_NUMBER; cfg->var = atoi(val); }
451 /** put integer_or_zero into unsigned */
452 #define S_UNSIGNED_OR_ZERO(str, var) if(strcmp(opt, str) == 0) \
453 { IS_NUMBER_OR_ZERO; cfg->var = (unsigned)atoi(val); }
454 /** put integer_or_zero into size_t */
455 #define S_SIZET_OR_ZERO(str, var) if(strcmp(opt, str) == 0) \
456 { IS_NUMBER_OR_ZERO; cfg->var = (size_t)atoi(val); }
457 /** put integer_nonzero into size_t */
458 #define S_SIZET_NONZERO(str, var) if(strcmp(opt, str) == 0) \
459 { IS_NONZERO_NUMBER; cfg->var = (size_t)atoi(val); }
460 /** put yesno into variable */
461 #define S_YNO(str, var) if(strcmp(opt, str) == 0) \
462 { IS_YES_OR_NO; cfg->var = (strcmp(val, "yes") == 0); }
463 /** put memsize into variable */
464 #define S_MEMSIZE(str, var) if(strcmp(opt, str)==0) \
465 { return cfg_parse_memsize(val, &cfg->var); }
466 /** put pow2 number into variable */
467 #define S_POW2(str, var) if(strcmp(opt, str)==0) \
468 { IS_POW2_NUMBER; cfg->var = (size_t)atoi(val); }
469 /** put string into variable */
470 #define S_STR(str, var) if(strcmp(opt, str)==0) \
471 { free(cfg->var); return (cfg->var = strdup(val)) != NULL; }
472 /** put string into strlist */
473 #define S_STRLIST(str, var) if(strcmp(opt, str)==0) \
474 { return cfg_strlist_insert(&cfg->var, strdup(val)); }
475 /** put string into strlist if not present yet*/
476 #define S_STRLIST_UNIQ(str, var) if(strcmp(opt, str)==0) \
477 { if(cfg_strlist_find(cfg->var, val)) { return 0;} \
478 return cfg_strlist_insert(&cfg->var, strdup(val)); }
479 /** append string to strlist */
480 #define S_STRLIST_APPEND(str, var) if(strcmp(opt, str)==0) \
481 { return cfg_strlist_append(&cfg->var, strdup(val)); }
483 int config_set_option(struct config_file* cfg, const char* opt,
488 if(opt[strlen(opt)-1] != ':' && strlen(opt)+2<sizeof(buf)) {
489 snprintf(buf, sizeof(buf), "%s:", opt);
492 S_NUMBER_OR_ZERO("verbosity:", verbosity)
493 else if(strcmp(opt, "statistics-interval:") == 0) {
494 if(strcmp(val, "0") == 0 || strcmp(val, "") == 0)
495 cfg->stat_interval = 0;
496 else if(atoi(val) == 0)
498 else cfg->stat_interval = atoi(val);
499 } else if(strcmp(opt, "num-threads:") == 0) {
500 /* not supported, library must have 1 thread in bgworker */
502 } else if(strcmp(opt, "outgoing-port-permit:") == 0) {
503 return cfg_mark_ports(val, 1,
504 cfg->outgoing_avail_ports, 65536);
505 } else if(strcmp(opt, "outgoing-port-avoid:") == 0) {
506 return cfg_mark_ports(val, 0,
507 cfg->outgoing_avail_ports, 65536);
508 } else if(strcmp(opt, "local-zone:") == 0) {
509 return cfg_parse_local_zone(cfg, val);
510 } else if(strcmp(opt, "val-override-date:") == 0) {
511 if(strcmp(val, "") == 0 || strcmp(val, "0") == 0) {
512 cfg->val_date_override = 0;
513 } else if(strlen(val) == 14) {
514 cfg->val_date_override = cfg_convert_timeval(val);
515 return cfg->val_date_override != 0;
517 if(atoi(val) == 0) return 0;
518 cfg->val_date_override = (uint32_t)atoi(val);
520 } else if(strcmp(opt, "local-data-ptr:") == 0) {
521 char* ptr = cfg_ptr_reverse((char*)opt);
522 return cfg_strlist_insert(&cfg->local_data, ptr);
523 } else if(strcmp(opt, "logfile:") == 0) {
526 return (cfg->logfile = strdup(val)) != NULL;
528 else if(strcmp(opt, "log-time-ascii:") == 0)
529 { IS_YES_OR_NO; cfg->log_time_ascii = (strcmp(val, "yes") == 0);
530 log_set_time_asc(cfg->log_time_ascii); }
531 else S_SIZET_NONZERO("max-udp-size:", max_udp_size)
532 else S_YNO("use-syslog:", use_syslog)
533 else S_STR("log-identity:", log_identity)
534 else S_YNO("extended-statistics:", stat_extended)
535 else S_YNO("statistics-inhibit-zero:", stat_inhibit_zero)
536 else S_YNO("statistics-cumulative:", stat_cumulative)
537 else S_YNO("shm-enable:", shm_enable)
538 else S_NUMBER_OR_ZERO("shm-key:", shm_key)
539 else S_YNO("do-ip4:", do_ip4)
540 else S_YNO("do-ip6:", do_ip6)
541 else S_YNO("do-udp:", do_udp)
542 else S_YNO("do-tcp:", do_tcp)
543 else S_YNO("prefer-ip4:", prefer_ip4)
544 else S_YNO("prefer-ip6:", prefer_ip6)
545 else S_YNO("tcp-upstream:", tcp_upstream)
546 else S_YNO("udp-upstream-without-downstream:",
547 udp_upstream_without_downstream)
548 else S_NUMBER_NONZERO("tcp-mss:", tcp_mss)
549 else S_NUMBER_NONZERO("outgoing-tcp-mss:", outgoing_tcp_mss)
550 else S_NUMBER_NONZERO("tcp-auth-query-timeout:", tcp_auth_query_timeout)
551 else S_NUMBER_NONZERO("tcp-idle-timeout:", tcp_idle_timeout)
552 else S_NUMBER_NONZERO("max-reuse-tcp-queries:", max_reuse_tcp_queries)
553 else S_NUMBER_NONZERO("tcp-reuse-timeout:", tcp_reuse_timeout)
554 else S_YNO("edns-tcp-keepalive:", do_tcp_keepalive)
555 else S_NUMBER_NONZERO("edns-tcp-keepalive-timeout:", tcp_keepalive_timeout)
556 else S_NUMBER_OR_ZERO("sock-queue-timeout:", sock_queue_timeout)
557 else S_YNO("ssl-upstream:", ssl_upstream)
558 else S_YNO("tls-upstream:", ssl_upstream)
559 else S_STR("ssl-service-key:", ssl_service_key)
560 else S_STR("tls-service-key:", ssl_service_key)
561 else S_STR("ssl-service-pem:", ssl_service_pem)
562 else S_STR("tls-service-pem:", ssl_service_pem)
563 else S_NUMBER_NONZERO("ssl-port:", ssl_port)
564 else S_NUMBER_NONZERO("tls-port:", ssl_port)
565 else S_STR("ssl-cert-bundle:", tls_cert_bundle)
566 else S_STR("tls-cert-bundle:", tls_cert_bundle)
567 else S_YNO("tls-win-cert:", tls_win_cert)
568 else S_YNO("tls-system-cert:", tls_win_cert)
569 else S_STRLIST("additional-ssl-port:", tls_additional_port)
570 else S_STRLIST("additional-tls-port:", tls_additional_port)
571 else S_STRLIST("tls-additional-ports:", tls_additional_port)
572 else S_STRLIST("tls-additional-port:", tls_additional_port)
573 else S_STRLIST_APPEND("tls-session-ticket-keys:", tls_session_ticket_keys)
574 else S_STR("tls-ciphers:", tls_ciphers)
575 else S_STR("tls-ciphersuites:", tls_ciphersuites)
576 else S_YNO("tls-use-sni:", tls_use_sni)
577 else S_NUMBER_NONZERO("https-port:", https_port)
578 else S_STR("http-endpoint:", http_endpoint)
579 else S_NUMBER_NONZERO("http-max-streams:", http_max_streams)
580 else S_MEMSIZE("http-query-buffer-size:", http_query_buffer_size)
581 else S_MEMSIZE("http-response-buffer-size:", http_response_buffer_size)
582 else S_YNO("http-nodelay:", http_nodelay)
583 else S_YNO("http-notls-downstream:", http_notls_downstream)
584 else S_YNO("interface-automatic:", if_automatic)
585 else S_STR("interface-automatic-ports:", if_automatic_ports)
586 else S_YNO("use-systemd:", use_systemd)
587 else S_YNO("do-daemonize:", do_daemonize)
588 else S_NUMBER_NONZERO("port:", port)
589 else S_NUMBER_NONZERO("outgoing-range:", outgoing_num_ports)
590 else S_SIZET_OR_ZERO("outgoing-num-tcp:", outgoing_num_tcp)
591 else S_SIZET_OR_ZERO("incoming-num-tcp:", incoming_num_tcp)
592 else S_MEMSIZE("stream-wait-size:", stream_wait_size)
593 else S_SIZET_NONZERO("edns-buffer-size:", edns_buffer_size)
594 else S_SIZET_NONZERO("msg-buffer-size:", msg_buffer_size)
595 else S_MEMSIZE("msg-cache-size:", msg_cache_size)
596 else S_POW2("msg-cache-slabs:", msg_cache_slabs)
597 else S_SIZET_NONZERO("num-queries-per-thread:",num_queries_per_thread)
598 else S_SIZET_OR_ZERO("jostle-timeout:", jostle_time)
599 else S_MEMSIZE("so-rcvbuf:", so_rcvbuf)
600 else S_MEMSIZE("so-sndbuf:", so_sndbuf)
601 else S_YNO("so-reuseport:", so_reuseport)
602 else S_YNO("ip-transparent:", ip_transparent)
603 else S_YNO("ip-freebind:", ip_freebind)
604 else S_NUMBER_OR_ZERO("ip-dscp:", ip_dscp)
605 else S_MEMSIZE("rrset-cache-size:", rrset_cache_size)
606 else S_POW2("rrset-cache-slabs:", rrset_cache_slabs)
607 else S_YNO("prefetch:", prefetch)
608 else S_YNO("prefetch-key:", prefetch_key)
609 else S_YNO("deny-any:", deny_any)
610 else if(strcmp(opt, "cache-max-ttl:") == 0)
611 { IS_NUMBER_OR_ZERO; cfg->max_ttl = atoi(val); MAX_TTL=(time_t)cfg->max_ttl;}
612 else if(strcmp(opt, "cache-max-negative-ttl:") == 0)
613 { IS_NUMBER_OR_ZERO; cfg->max_negative_ttl = atoi(val); MAX_NEG_TTL=(time_t)cfg->max_negative_ttl;}
614 else if(strcmp(opt, "cache-min-ttl:") == 0)
615 { IS_NUMBER_OR_ZERO; cfg->min_ttl = atoi(val); MIN_TTL=(time_t)cfg->min_ttl;}
616 else if(strcmp(opt, "infra-cache-min-rtt:") == 0) {
617 IS_NUMBER_OR_ZERO; cfg->infra_cache_min_rtt = atoi(val);
618 RTT_MIN_TIMEOUT=cfg->infra_cache_min_rtt;
620 else if(strcmp(opt, "infra-cache-max-rtt:") == 0) {
621 IS_NUMBER_OR_ZERO; cfg->infra_cache_max_rtt = atoi(val);
622 RTT_MAX_TIMEOUT=cfg->infra_cache_max_rtt;
623 USEFUL_SERVER_TOP_TIMEOUT = RTT_MAX_TIMEOUT;
624 BLACKLIST_PENALTY = USEFUL_SERVER_TOP_TIMEOUT*4;
626 else S_YNO("infra-keep-probing:", infra_keep_probing)
627 else S_NUMBER_OR_ZERO("infra-host-ttl:", host_ttl)
628 else S_POW2("infra-cache-slabs:", infra_cache_slabs)
629 else S_SIZET_NONZERO("infra-cache-numhosts:", infra_cache_numhosts)
630 else S_NUMBER_OR_ZERO("delay-close:", delay_close)
631 else S_YNO("udp-connect:", udp_connect)
632 else S_STR("chroot:", chrootdir)
633 else S_STR("username:", username)
634 else S_STR("directory:", directory)
635 else S_STR("pidfile:", pidfile)
636 else S_YNO("hide-identity:", hide_identity)
637 else S_YNO("hide-version:", hide_version)
638 else S_YNO("hide-trustanchor:", hide_trustanchor)
639 else S_YNO("hide-http-user-agent:", hide_http_user_agent)
640 else S_STR("identity:", identity)
641 else S_STR("version:", version)
642 else S_STR("http-user-agent:", http_user_agent)
643 else if(strcmp(opt, "nsid:") == 0) {
644 free(cfg->nsid_cfg_str);
645 if (!(cfg->nsid_cfg_str = strdup(val)))
647 /* Empty string is just validly unsetting nsid */
654 cfg->nsid = cfg_parse_nsid(val, &cfg->nsid_len);
655 return cfg->nsid != NULL;
657 else S_STRLIST("root-hints:", root_hints)
658 else S_STR("target-fetch-policy:", target_fetch_policy)
659 else S_YNO("harden-glue:", harden_glue)
660 else S_YNO("harden-short-bufsize:", harden_short_bufsize)
661 else S_YNO("harden-large-queries:", harden_large_queries)
662 else S_YNO("harden-dnssec-stripped:", harden_dnssec_stripped)
663 else S_YNO("harden-below-nxdomain:", harden_below_nxdomain)
664 else S_YNO("harden-referral-path:", harden_referral_path)
665 else S_YNO("harden-algo-downgrade:", harden_algo_downgrade)
666 else S_YNO("harden-unknown-additional:", harden_unknown_additional)
667 else S_YNO("use-caps-for-id:", use_caps_bits_for_id)
668 else S_STRLIST("caps-whitelist:", caps_whitelist)
669 else S_SIZET_OR_ZERO("unwanted-reply-threshold:", unwanted_threshold)
670 else S_STRLIST("private-address:", private_address)
671 else S_STRLIST("private-domain:", private_domain)
672 else S_YNO("do-not-query-localhost:", donotquery_localhost)
673 else S_STRLIST("do-not-query-address:", donotqueryaddrs)
674 else S_STRLIST("auto-trust-anchor-file:", auto_trust_anchor_file_list)
675 else S_STRLIST("trust-anchor-file:", trust_anchor_file_list)
676 else S_STRLIST("trust-anchor:", trust_anchor_list)
677 else S_STRLIST("trusted-keys-file:", trusted_keys_file_list)
678 else S_YNO("trust-anchor-signaling:", trust_anchor_signaling)
679 else S_YNO("root-key-sentinel:", root_key_sentinel)
680 else S_STRLIST("domain-insecure:", domain_insecure)
681 else S_NUMBER_OR_ZERO("val-bogus-ttl:", bogus_ttl)
682 else S_YNO("val-clean-additional:", val_clean_additional)
683 else S_NUMBER_OR_ZERO("val-log-level:", val_log_level)
684 else S_YNO("val-log-squelch:", val_log_squelch)
685 else S_YNO("log-queries:", log_queries)
686 else S_YNO("log-replies:", log_replies)
687 else S_YNO("log-tag-queryreply:", log_tag_queryreply)
688 else S_YNO("log-local-actions:", log_local_actions)
689 else S_YNO("log-servfail:", log_servfail)
690 else S_YNO("val-permissive-mode:", val_permissive_mode)
691 else S_YNO("aggressive-nsec:", aggressive_nsec)
692 else S_YNO("ignore-cd-flag:", ignore_cd)
693 else if(strcmp(opt, "serve-expired:") == 0)
694 { IS_YES_OR_NO; cfg->serve_expired = (strcmp(val, "yes") == 0);
695 SERVE_EXPIRED = cfg->serve_expired; }
696 else if(strcmp(opt, "serve-expired-ttl:") == 0)
697 { IS_NUMBER_OR_ZERO; cfg->serve_expired_ttl = atoi(val); SERVE_EXPIRED_TTL=(time_t)cfg->serve_expired_ttl;}
698 else S_YNO("serve-expired-ttl-reset:", serve_expired_ttl_reset)
699 else if(strcmp(opt, "serve-expired-reply-ttl:") == 0)
700 { IS_NUMBER_OR_ZERO; cfg->serve_expired_reply_ttl = atoi(val); SERVE_EXPIRED_REPLY_TTL=(time_t)cfg->serve_expired_reply_ttl;}
701 else S_NUMBER_OR_ZERO("serve-expired-client-timeout:", serve_expired_client_timeout)
702 else S_YNO("ede:", ede)
703 else S_YNO("ede-serve-expired:", ede_serve_expired)
704 else S_YNO("serve-original-ttl:", serve_original_ttl)
705 else S_STR("val-nsec3-keysize-iterations:", val_nsec3_key_iterations)
706 else S_YNO("zonemd-permissive-mode:", zonemd_permissive_mode)
707 else S_UNSIGNED_OR_ZERO("add-holddown:", add_holddown)
708 else S_UNSIGNED_OR_ZERO("del-holddown:", del_holddown)
709 else S_UNSIGNED_OR_ZERO("keep-missing:", keep_missing)
710 else if(strcmp(opt, "permit-small-holddown:") == 0)
711 { IS_YES_OR_NO; cfg->permit_small_holddown = (strcmp(val, "yes") == 0);
712 autr_permit_small_holddown = cfg->permit_small_holddown; }
713 else S_MEMSIZE("key-cache-size:", key_cache_size)
714 else S_POW2("key-cache-slabs:", key_cache_slabs)
715 else S_MEMSIZE("neg-cache-size:", neg_cache_size)
716 else S_YNO("minimal-responses:", minimal_responses)
717 else S_YNO("rrset-roundrobin:", rrset_roundrobin)
718 else S_NUMBER_OR_ZERO("unknown-server-time-limit:", unknown_server_time_limit)
719 else S_STRLIST("local-data:", local_data)
720 else S_YNO("unblock-lan-zones:", unblock_lan_zones)
721 else S_YNO("insecure-lan-zones:", insecure_lan_zones)
722 else S_YNO("control-enable:", remote_control_enable)
723 else S_STRLIST_APPEND("control-interface:", control_ifs)
724 else S_NUMBER_NONZERO("control-port:", control_port)
725 else S_STR("server-key-file:", server_key_file)
726 else S_STR("server-cert-file:", server_cert_file)
727 else S_STR("control-key-file:", control_key_file)
728 else S_STR("control-cert-file:", control_cert_file)
729 else S_STR("module-config:", module_conf)
730 else S_STRLIST("python-script:", python_script)
731 else S_STRLIST("dynlib-file:", dynlib_file)
732 else S_YNO("disable-dnssec-lame-check:", disable_dnssec_lame_check)
734 /* Can't set max subnet prefix here, since that value is used when
735 * generating the address tree. */
736 /* No client-subnet-always-forward here, module registration depends on
740 else S_YNO("dnstap-enable:", dnstap)
741 else S_YNO("dnstap-bidirectional:", dnstap_bidirectional)
742 else S_STR("dnstap-socket-path:", dnstap_socket_path)
743 else S_STR("dnstap-ip:", dnstap_ip)
744 else S_YNO("dnstap-tls:", dnstap_tls)
745 else S_STR("dnstap-tls-server-name:", dnstap_tls_server_name)
746 else S_STR("dnstap-tls-cert-bundle:", dnstap_tls_cert_bundle)
747 else S_STR("dnstap-tls-client-key-file:", dnstap_tls_client_key_file)
748 else S_STR("dnstap-tls-client-cert-file:",
749 dnstap_tls_client_cert_file)
750 else S_YNO("dnstap-send-identity:", dnstap_send_identity)
751 else S_YNO("dnstap-send-version:", dnstap_send_version)
752 else S_STR("dnstap-identity:", dnstap_identity)
753 else S_STR("dnstap-version:", dnstap_version)
754 else S_YNO("dnstap-log-resolver-query-messages:",
755 dnstap_log_resolver_query_messages)
756 else S_YNO("dnstap-log-resolver-response-messages:",
757 dnstap_log_resolver_response_messages)
758 else S_YNO("dnstap-log-client-query-messages:",
759 dnstap_log_client_query_messages)
760 else S_YNO("dnstap-log-client-response-messages:",
761 dnstap_log_client_response_messages)
762 else S_YNO("dnstap-log-forwarder-query-messages:",
763 dnstap_log_forwarder_query_messages)
764 else S_YNO("dnstap-log-forwarder-response-messages:",
765 dnstap_log_forwarder_response_messages)
768 else S_YNO("dnscrypt-enable:", dnscrypt)
769 else S_NUMBER_NONZERO("dnscrypt-port:", dnscrypt_port)
770 else S_STR("dnscrypt-provider:", dnscrypt_provider)
771 else S_STRLIST_UNIQ("dnscrypt-provider-cert:", dnscrypt_provider_cert)
772 else S_STRLIST("dnscrypt-provider-cert-rotated:", dnscrypt_provider_cert_rotated)
773 else S_STRLIST_UNIQ("dnscrypt-secret-key:", dnscrypt_secret_key)
774 else S_MEMSIZE("dnscrypt-shared-secret-cache-size:",
775 dnscrypt_shared_secret_cache_size)
776 else S_POW2("dnscrypt-shared-secret-cache-slabs:",
777 dnscrypt_shared_secret_cache_slabs)
778 else S_MEMSIZE("dnscrypt-nonce-cache-size:",
779 dnscrypt_nonce_cache_size)
780 else S_POW2("dnscrypt-nonce-cache-slabs:",
781 dnscrypt_nonce_cache_slabs)
783 else if(strcmp(opt, "ip-ratelimit-cookie:") == 0) {
784 IS_NUMBER_OR_ZERO; cfg->ip_ratelimit_cookie = atoi(val);
785 infra_ip_ratelimit_cookie=cfg->ip_ratelimit_cookie;
787 else if(strcmp(opt, "ip-ratelimit:") == 0) {
788 IS_NUMBER_OR_ZERO; cfg->ip_ratelimit = atoi(val);
789 infra_ip_ratelimit=cfg->ip_ratelimit;
791 else if(strcmp(opt, "ratelimit:") == 0) {
792 IS_NUMBER_OR_ZERO; cfg->ratelimit = atoi(val);
793 infra_dp_ratelimit=cfg->ratelimit;
795 else S_MEMSIZE("ip-ratelimit-size:", ip_ratelimit_size)
796 else S_MEMSIZE("ratelimit-size:", ratelimit_size)
797 else S_POW2("ip-ratelimit-slabs:", ip_ratelimit_slabs)
798 else S_POW2("ratelimit-slabs:", ratelimit_slabs)
799 else S_NUMBER_OR_ZERO("ip-ratelimit-factor:", ip_ratelimit_factor)
800 else S_NUMBER_OR_ZERO("ratelimit-factor:", ratelimit_factor)
801 else S_YNO("ip-ratelimit-backoff:", ip_ratelimit_backoff)
802 else S_YNO("ratelimit-backoff:", ratelimit_backoff)
803 else S_NUMBER_NONZERO("outbound-msg-retry:", outbound_msg_retry)
804 else S_NUMBER_NONZERO("max-sent-count:", max_sent_count)
805 else S_NUMBER_NONZERO("max-query-restarts:", max_query_restarts)
806 else S_SIZET_NONZERO("fast-server-num:", fast_server_num)
807 else S_NUMBER_OR_ZERO("fast-server-permil:", fast_server_permil)
808 else S_YNO("qname-minimisation:", qname_minimisation)
809 else S_YNO("qname-minimisation-strict:", qname_minimisation_strict)
810 else S_YNO("pad-responses:", pad_responses)
811 else S_SIZET_NONZERO("pad-responses-block-size:", pad_responses_block_size)
812 else S_YNO("pad-queries:", pad_queries)
813 else S_SIZET_NONZERO("pad-queries-block-size:", pad_queries_block_size)
814 else S_STRLIST("proxy-protocol-port:", proxy_protocol_port)
816 else S_YNO("ipsecmod-enabled:", ipsecmod_enabled)
817 else S_YNO("ipsecmod-ignore-bogus:", ipsecmod_ignore_bogus)
818 else if(strcmp(opt, "ipsecmod-max-ttl:") == 0)
819 { IS_NUMBER_OR_ZERO; cfg->ipsecmod_max_ttl = atoi(val); }
820 else S_YNO("ipsecmod-strict:", ipsecmod_strict)
822 else if(strcmp(opt, "define-tag:") ==0) {
823 return config_add_tag(cfg, val);
824 /* val_sig_skew_min, max and val_max_restart are copied into val_env
825 * during init so this does not update val_env with set_option */
826 } else if(strcmp(opt, "val-sig-skew-min:") == 0)
827 { IS_NUMBER_OR_ZERO; cfg->val_sig_skew_min = (int32_t)atoi(val); }
828 else if(strcmp(opt, "val-sig-skew-max:") == 0)
829 { IS_NUMBER_OR_ZERO; cfg->val_sig_skew_max = (int32_t)atoi(val); }
830 else if(strcmp(opt, "val-max-restart:") == 0)
831 { IS_NUMBER_OR_ZERO; cfg->val_max_restart = (int32_t)atoi(val); }
832 else if (strcmp(opt, "outgoing-interface:") == 0) {
833 char* d = strdup(val);
835 (char**)reallocarray(NULL, (size_t)cfg->num_out_ifs+1, sizeof(char*));
836 if(!d || !oi) { free(d); free(oi); return -1; }
837 if(cfg->out_ifs && cfg->num_out_ifs) {
838 memmove(oi, cfg->out_ifs, cfg->num_out_ifs*sizeof(char*));
841 oi[cfg->num_out_ifs++] = d;
844 /* unknown or unsupported (from the set_option interface):
845 * interface, outgoing-interface, access-control,
846 * stub-zone, name, stub-addr, stub-host, stub-prime
847 * forward-first, stub-first, forward-ssl-upstream,
848 * stub-ssl-upstream, forward-zone, auth-zone
849 * name, forward-addr, forward-host,
850 * ratelimit-for-domain, ratelimit-below-domain,
851 * local-zone-tag, access-control-view, interface-*,
852 * send-client-subnet, client-subnet-always-forward,
853 * max-client-subnet-ipv4, max-client-subnet-ipv6,
854 * min-client-subnet-ipv4, min-client-subnet-ipv6,
855 * max-ecs-tree-size-ipv4, max-ecs-tree-size-ipv6, ipsecmod_hook,
856 * ipsecmod_whitelist. */
862 void config_print_func(char* line, void* arg)
864 FILE* f = (FILE*)arg;
865 (void)fprintf(f, "%s\n", line);
868 /** collate func arg */
869 struct config_collate_arg {
870 /** list of result items */
871 struct config_strlist_head list;
872 /** if a malloc error occurred, 0 is OK */
876 void config_collate_func(char* line, void* arg)
878 struct config_collate_arg* m = (struct config_collate_arg*)arg;
881 if(!cfg_strlist_append(&m->list, strdup(line)))
885 int config_get_option_list(struct config_file* cfg, const char* opt,
886 struct config_strlist** list)
888 struct config_collate_arg m;
889 memset(&m, 0, sizeof(m));
891 if(!config_get_option(cfg, opt, config_collate_func, &m))
894 config_delstrlist(m.list.first);
897 *list = m.list.first;
902 config_get_option_collate(struct config_file* cfg, const char* opt, char** str)
904 struct config_strlist* list = NULL;
907 if((r = config_get_option_list(cfg, opt, &list)) != 0)
909 *str = config_collate_cat(list);
910 config_delstrlist(list);
916 config_collate_cat(struct config_strlist* list)
918 size_t total = 0, left;
919 struct config_strlist* s;
921 if(!list) /* no elements */
923 if(list->next == NULL) /* one element , no newline at end. */
924 return strdup(list->str);
925 /* count total length */
926 for(s=list; s; s=s->next)
927 total += strlen(s->str) + 1; /* len + newline */
928 left = total+1; /* one extra for nul at end */
933 for(s=list; s; s=s->next) {
934 size_t this = strlen(s->str);
935 if(this+2 > left) { /* sanity check */
939 snprintf(w, left, "%s\n", s->str);
947 /** compare and print decimal option */
948 #define O_DEC(opt, str, var) if(strcmp(opt, str)==0) \
949 {snprintf(buf, len, "%d", (int)cfg->var); \
951 /** compare and print unsigned option */
952 #define O_UNS(opt, str, var) if(strcmp(opt, str)==0) \
953 {snprintf(buf, len, "%u", (unsigned)cfg->var); \
955 /** compare and print yesno option */
956 #define O_YNO(opt, str, var) if(strcmp(opt, str)==0) \
957 {func(cfg->var?"yes":"no", arg);}
958 /** compare and print string option */
959 #define O_STR(opt, str, var) if(strcmp(opt, str)==0) \
960 {func(cfg->var?cfg->var:"", arg);}
961 /** compare and print array option */
962 #define O_IFC(opt, str, num, arr) if(strcmp(opt, str)==0) \
963 {int i; for(i=0; i<cfg->num; i++) func(cfg->arr[i], arg);}
964 /** compare and print memorysize option */
965 #define O_MEM(opt, str, var) if(strcmp(opt, str)==0) { \
966 if(cfg->var > 1024*1024*1024) { \
967 size_t f=cfg->var/(size_t)1000000, b=cfg->var%(size_t)1000000; \
968 snprintf(buf, len, "%u%6.6u", (unsigned)f, (unsigned)b); \
969 } else snprintf(buf, len, "%u", (unsigned)cfg->var); \
971 /** compare and print list option */
972 #define O_LST(opt, name, lst) if(strcmp(opt, name)==0) { \
973 struct config_strlist* p = cfg->lst; \
974 for(p = cfg->lst; p; p = p->next) \
977 /** compare and print list option */
978 #define O_LS2(opt, name, lst) if(strcmp(opt, name)==0) { \
979 struct config_str2list* p = cfg->lst; \
980 for(p = cfg->lst; p; p = p->next) { \
981 snprintf(buf, len, "%s %s", p->str, p->str2); \
985 /** compare and print list option */
986 #define O_LS3(opt, name, lst) if(strcmp(opt, name)==0) { \
987 struct config_str3list* p = cfg->lst; \
988 for(p = cfg->lst; p; p = p->next) { \
989 snprintf(buf, len, "%s %s %s", p->str, p->str2, p->str3); \
993 /** compare and print taglist option */
994 #define O_LTG(opt, name, lst) if(strcmp(opt, name)==0) { \
995 char* tmpstr = NULL; \
996 struct config_strbytelist *p = cfg->lst; \
997 for(p = cfg->lst; p; p = p->next) {\
998 tmpstr = config_taglist2str(cfg, p->str2, p->str2len); \
1000 snprintf(buf, len, "%s %s", p->str, tmpstr); \
1008 config_get_option(struct config_file* cfg, const char* opt,
1009 void (*func)(char*,void*), void* arg)
1011 char buf[1024], nopt[64];
1012 size_t len = sizeof(buf);
1014 if(opt && opt[strlen(opt)-1] == ':' && strlen(opt)<sizeof(nopt)) {
1015 memmove(nopt, opt, strlen(opt));
1016 nopt[strlen(opt)-1] = 0;
1019 fptr_ok(fptr_whitelist_print_func(func));
1020 O_DEC(opt, "verbosity", verbosity)
1021 else O_DEC(opt, "statistics-interval", stat_interval)
1022 else O_YNO(opt, "statistics-cumulative", stat_cumulative)
1023 else O_YNO(opt, "extended-statistics", stat_extended)
1024 else O_YNO(opt, "statistics-inhibit-zero", stat_inhibit_zero)
1025 else O_YNO(opt, "shm-enable", shm_enable)
1026 else O_DEC(opt, "shm-key", shm_key)
1027 else O_YNO(opt, "use-syslog", use_syslog)
1028 else O_STR(opt, "log-identity", log_identity)
1029 else O_YNO(opt, "log-time-ascii", log_time_ascii)
1030 else O_DEC(opt, "num-threads", num_threads)
1031 else O_IFC(opt, "interface", num_ifs, ifs)
1032 else O_IFC(opt, "outgoing-interface", num_out_ifs, out_ifs)
1033 else O_YNO(opt, "interface-automatic", if_automatic)
1034 else O_STR(opt, "interface-automatic-ports", if_automatic_ports)
1035 else O_DEC(opt, "port", port)
1036 else O_DEC(opt, "outgoing-range", outgoing_num_ports)
1037 else O_DEC(opt, "outgoing-num-tcp", outgoing_num_tcp)
1038 else O_DEC(opt, "incoming-num-tcp", incoming_num_tcp)
1039 else O_MEM(opt, "stream-wait-size", stream_wait_size)
1040 else O_DEC(opt, "edns-buffer-size", edns_buffer_size)
1041 else O_DEC(opt, "msg-buffer-size", msg_buffer_size)
1042 else O_MEM(opt, "msg-cache-size", msg_cache_size)
1043 else O_DEC(opt, "msg-cache-slabs", msg_cache_slabs)
1044 else O_DEC(opt, "num-queries-per-thread", num_queries_per_thread)
1045 else O_UNS(opt, "jostle-timeout", jostle_time)
1046 else O_MEM(opt, "so-rcvbuf", so_rcvbuf)
1047 else O_MEM(opt, "so-sndbuf", so_sndbuf)
1048 else O_YNO(opt, "so-reuseport", so_reuseport)
1049 else O_YNO(opt, "ip-transparent", ip_transparent)
1050 else O_YNO(opt, "ip-freebind", ip_freebind)
1051 else O_DEC(opt, "ip-dscp", ip_dscp)
1052 else O_MEM(opt, "rrset-cache-size", rrset_cache_size)
1053 else O_DEC(opt, "rrset-cache-slabs", rrset_cache_slabs)
1054 else O_YNO(opt, "prefetch-key", prefetch_key)
1055 else O_YNO(opt, "prefetch", prefetch)
1056 else O_YNO(opt, "deny-any", deny_any)
1057 else O_DEC(opt, "cache-max-ttl", max_ttl)
1058 else O_DEC(opt, "cache-max-negative-ttl", max_negative_ttl)
1059 else O_DEC(opt, "cache-min-ttl", min_ttl)
1060 else O_DEC(opt, "infra-host-ttl", host_ttl)
1061 else O_DEC(opt, "infra-cache-slabs", infra_cache_slabs)
1062 else O_DEC(opt, "infra-cache-min-rtt", infra_cache_min_rtt)
1063 else O_UNS(opt, "infra-cache-max-rtt", infra_cache_max_rtt)
1064 else O_YNO(opt, "infra-keep-probing", infra_keep_probing)
1065 else O_MEM(opt, "infra-cache-numhosts", infra_cache_numhosts)
1066 else O_UNS(opt, "delay-close", delay_close)
1067 else O_YNO(opt, "udp-connect", udp_connect)
1068 else O_YNO(opt, "do-ip4", do_ip4)
1069 else O_YNO(opt, "do-ip6", do_ip6)
1070 else O_YNO(opt, "do-udp", do_udp)
1071 else O_YNO(opt, "do-tcp", do_tcp)
1072 else O_YNO(opt, "prefer-ip4", prefer_ip4)
1073 else O_YNO(opt, "prefer-ip6", prefer_ip6)
1074 else O_YNO(opt, "tcp-upstream", tcp_upstream)
1075 else O_YNO(opt, "udp-upstream-without-downstream", udp_upstream_without_downstream)
1076 else O_DEC(opt, "tcp-mss", tcp_mss)
1077 else O_DEC(opt, "outgoing-tcp-mss", outgoing_tcp_mss)
1078 else O_DEC(opt, "tcp-auth-query-timeout", tcp_auth_query_timeout)
1079 else O_DEC(opt, "tcp-idle-timeout", tcp_idle_timeout)
1080 else O_DEC(opt, "max-reuse-tcp-queries", max_reuse_tcp_queries)
1081 else O_DEC(opt, "tcp-reuse-timeout", tcp_reuse_timeout)
1082 else O_YNO(opt, "edns-tcp-keepalive", do_tcp_keepalive)
1083 else O_DEC(opt, "edns-tcp-keepalive-timeout", tcp_keepalive_timeout)
1084 else O_DEC(opt, "sock-queue-timeout", sock_queue_timeout)
1085 else O_YNO(opt, "ssl-upstream", ssl_upstream)
1086 else O_YNO(opt, "tls-upstream", ssl_upstream)
1087 else O_STR(opt, "ssl-service-key", ssl_service_key)
1088 else O_STR(opt, "tls-service-key", ssl_service_key)
1089 else O_STR(opt, "ssl-service-pem", ssl_service_pem)
1090 else O_STR(opt, "tls-service-pem", ssl_service_pem)
1091 else O_DEC(opt, "ssl-port", ssl_port)
1092 else O_DEC(opt, "tls-port", ssl_port)
1093 else O_STR(opt, "ssl-cert-bundle", tls_cert_bundle)
1094 else O_STR(opt, "tls-cert-bundle", tls_cert_bundle)
1095 else O_YNO(opt, "tls-win-cert", tls_win_cert)
1096 else O_YNO(opt, "tls-system-cert", tls_win_cert)
1097 else O_LST(opt, "additional-ssl-port", tls_additional_port)
1098 else O_LST(opt, "additional-tls-port", tls_additional_port)
1099 else O_LST(opt, "tls-additional-ports", tls_additional_port)
1100 else O_LST(opt, "tls-additional-port", tls_additional_port)
1101 else O_LST(opt, "tls-session-ticket-keys", tls_session_ticket_keys.first)
1102 else O_STR(opt, "tls-ciphers", tls_ciphers)
1103 else O_STR(opt, "tls-ciphersuites", tls_ciphersuites)
1104 else O_YNO(opt, "tls-use-sni", tls_use_sni)
1105 else O_DEC(opt, "https-port", https_port)
1106 else O_STR(opt, "http-endpoint", http_endpoint)
1107 else O_UNS(opt, "http-max-streams", http_max_streams)
1108 else O_MEM(opt, "http-query-buffer-size", http_query_buffer_size)
1109 else O_MEM(opt, "http-response-buffer-size", http_response_buffer_size)
1110 else O_YNO(opt, "http-nodelay", http_nodelay)
1111 else O_YNO(opt, "http-notls-downstream", http_notls_downstream)
1112 else O_YNO(opt, "use-systemd", use_systemd)
1113 else O_YNO(opt, "do-daemonize", do_daemonize)
1114 else O_STR(opt, "chroot", chrootdir)
1115 else O_STR(opt, "username", username)
1116 else O_STR(opt, "directory", directory)
1117 else O_STR(opt, "logfile", logfile)
1118 else O_YNO(opt, "log-queries", log_queries)
1119 else O_YNO(opt, "log-replies", log_replies)
1120 else O_YNO(opt, "log-tag-queryreply", log_tag_queryreply)
1121 else O_YNO(opt, "log-local-actions", log_local_actions)
1122 else O_YNO(opt, "log-servfail", log_servfail)
1123 else O_STR(opt, "pidfile", pidfile)
1124 else O_YNO(opt, "hide-identity", hide_identity)
1125 else O_YNO(opt, "hide-version", hide_version)
1126 else O_YNO(opt, "hide-trustanchor", hide_trustanchor)
1127 else O_YNO(opt, "hide-http-user-agent", hide_http_user_agent)
1128 else O_STR(opt, "identity", identity)
1129 else O_STR(opt, "version", version)
1130 else O_STR(opt, "http-user-agent", http_user_agent)
1131 else O_STR(opt, "nsid", nsid_cfg_str)
1132 else O_STR(opt, "target-fetch-policy", target_fetch_policy)
1133 else O_YNO(opt, "harden-short-bufsize", harden_short_bufsize)
1134 else O_YNO(opt, "harden-large-queries", harden_large_queries)
1135 else O_YNO(opt, "harden-glue", harden_glue)
1136 else O_YNO(opt, "harden-dnssec-stripped", harden_dnssec_stripped)
1137 else O_YNO(opt, "harden-below-nxdomain", harden_below_nxdomain)
1138 else O_YNO(opt, "harden-referral-path", harden_referral_path)
1139 else O_YNO(opt, "harden-algo-downgrade", harden_algo_downgrade)
1140 else O_YNO(opt, "harden-unknown-additional", harden_unknown_additional)
1141 else O_YNO(opt, "use-caps-for-id", use_caps_bits_for_id)
1142 else O_LST(opt, "caps-whitelist", caps_whitelist)
1143 else O_DEC(opt, "unwanted-reply-threshold", unwanted_threshold)
1144 else O_YNO(opt, "do-not-query-localhost", donotquery_localhost)
1145 else O_STR(opt, "module-config", module_conf)
1146 else O_DEC(opt, "val-bogus-ttl", bogus_ttl)
1147 else O_YNO(opt, "val-clean-additional", val_clean_additional)
1148 else O_DEC(opt, "val-log-level", val_log_level)
1149 else O_YNO(opt, "val-permissive-mode", val_permissive_mode)
1150 else O_YNO(opt, "aggressive-nsec", aggressive_nsec)
1151 else O_YNO(opt, "ignore-cd-flag", ignore_cd)
1152 else O_YNO(opt, "serve-expired", serve_expired)
1153 else O_DEC(opt, "serve-expired-ttl", serve_expired_ttl)
1154 else O_YNO(opt, "serve-expired-ttl-reset", serve_expired_ttl_reset)
1155 else O_DEC(opt, "serve-expired-reply-ttl", serve_expired_reply_ttl)
1156 else O_DEC(opt, "serve-expired-client-timeout", serve_expired_client_timeout)
1157 else O_YNO(opt, "ede", ede)
1158 else O_YNO(opt, "ede-serve-expired", ede_serve_expired)
1159 else O_YNO(opt, "serve-original-ttl", serve_original_ttl)
1160 else O_STR(opt, "val-nsec3-keysize-iterations",val_nsec3_key_iterations)
1161 else O_YNO(opt, "zonemd-permissive-mode", zonemd_permissive_mode)
1162 else O_UNS(opt, "add-holddown", add_holddown)
1163 else O_UNS(opt, "del-holddown", del_holddown)
1164 else O_UNS(opt, "keep-missing", keep_missing)
1165 else O_YNO(opt, "permit-small-holddown", permit_small_holddown)
1166 else O_MEM(opt, "key-cache-size", key_cache_size)
1167 else O_DEC(opt, "key-cache-slabs", key_cache_slabs)
1168 else O_MEM(opt, "neg-cache-size", neg_cache_size)
1169 else O_YNO(opt, "control-enable", remote_control_enable)
1170 else O_DEC(opt, "control-port", control_port)
1171 else O_STR(opt, "server-key-file", server_key_file)
1172 else O_STR(opt, "server-cert-file", server_cert_file)
1173 else O_STR(opt, "control-key-file", control_key_file)
1174 else O_STR(opt, "control-cert-file", control_cert_file)
1175 else O_LST(opt, "root-hints", root_hints)
1176 else O_LS2(opt, "access-control", acls)
1177 else O_LS2(opt, "tcp-connection-limit", tcp_connection_limits)
1178 else O_LST(opt, "do-not-query-address", donotqueryaddrs)
1179 else O_LST(opt, "private-address", private_address)
1180 else O_LST(opt, "private-domain", private_domain)
1181 else O_LST(opt, "auto-trust-anchor-file", auto_trust_anchor_file_list)
1182 else O_LST(opt, "trust-anchor-file", trust_anchor_file_list)
1183 else O_LST(opt, "trust-anchor", trust_anchor_list)
1184 else O_LST(opt, "trusted-keys-file", trusted_keys_file_list)
1185 else O_YNO(opt, "trust-anchor-signaling", trust_anchor_signaling)
1186 else O_YNO(opt, "root-key-sentinel", root_key_sentinel)
1187 else O_LST(opt, "control-interface", control_ifs.first)
1188 else O_LST(opt, "domain-insecure", domain_insecure)
1189 else O_UNS(opt, "val-override-date", val_date_override)
1190 else O_YNO(opt, "minimal-responses", minimal_responses)
1191 else O_YNO(opt, "rrset-roundrobin", rrset_roundrobin)
1192 else O_DEC(opt, "unknown-server-time-limit", unknown_server_time_limit)
1193 #ifdef CLIENT_SUBNET
1194 else O_LST(opt, "send-client-subnet", client_subnet)
1195 else O_LST(opt, "client-subnet-zone", client_subnet_zone)
1196 else O_DEC(opt, "max-client-subnet-ipv4", max_client_subnet_ipv4)
1197 else O_DEC(opt, "max-client-subnet-ipv6", max_client_subnet_ipv6)
1198 else O_DEC(opt, "min-client-subnet-ipv4", min_client_subnet_ipv4)
1199 else O_DEC(opt, "min-client-subnet-ipv6", min_client_subnet_ipv6)
1200 else O_DEC(opt, "max-ecs-tree-size-ipv4", max_ecs_tree_size_ipv4)
1201 else O_DEC(opt, "max-ecs-tree-size-ipv6", max_ecs_tree_size_ipv6)
1202 else O_YNO(opt, "client-subnet-always-forward:",
1203 client_subnet_always_forward)
1206 else O_YNO(opt, "dnstap-enable", dnstap)
1207 else O_YNO(opt, "dnstap-bidirectional", dnstap_bidirectional)
1208 else O_STR(opt, "dnstap-socket-path", dnstap_socket_path)
1209 else O_STR(opt, "dnstap-ip", dnstap_ip)
1210 else O_YNO(opt, "dnstap-tls", dnstap_tls)
1211 else O_STR(opt, "dnstap-tls-server-name", dnstap_tls_server_name)
1212 else O_STR(opt, "dnstap-tls-cert-bundle", dnstap_tls_cert_bundle)
1213 else O_STR(opt, "dnstap-tls-client-key-file",
1214 dnstap_tls_client_key_file)
1215 else O_STR(opt, "dnstap-tls-client-cert-file",
1216 dnstap_tls_client_cert_file)
1217 else O_YNO(opt, "dnstap-send-identity", dnstap_send_identity)
1218 else O_YNO(opt, "dnstap-send-version", dnstap_send_version)
1219 else O_STR(opt, "dnstap-identity", dnstap_identity)
1220 else O_STR(opt, "dnstap-version", dnstap_version)
1221 else O_YNO(opt, "dnstap-log-resolver-query-messages",
1222 dnstap_log_resolver_query_messages)
1223 else O_YNO(opt, "dnstap-log-resolver-response-messages",
1224 dnstap_log_resolver_response_messages)
1225 else O_YNO(opt, "dnstap-log-client-query-messages",
1226 dnstap_log_client_query_messages)
1227 else O_YNO(opt, "dnstap-log-client-response-messages",
1228 dnstap_log_client_response_messages)
1229 else O_YNO(opt, "dnstap-log-forwarder-query-messages",
1230 dnstap_log_forwarder_query_messages)
1231 else O_YNO(opt, "dnstap-log-forwarder-response-messages",
1232 dnstap_log_forwarder_response_messages)
1235 else O_YNO(opt, "dnscrypt-enable", dnscrypt)
1236 else O_DEC(opt, "dnscrypt-port", dnscrypt_port)
1237 else O_STR(opt, "dnscrypt-provider", dnscrypt_provider)
1238 else O_LST(opt, "dnscrypt-provider-cert", dnscrypt_provider_cert)
1239 else O_LST(opt, "dnscrypt-provider-cert-rotated", dnscrypt_provider_cert_rotated)
1240 else O_LST(opt, "dnscrypt-secret-key", dnscrypt_secret_key)
1241 else O_MEM(opt, "dnscrypt-shared-secret-cache-size",
1242 dnscrypt_shared_secret_cache_size)
1243 else O_DEC(opt, "dnscrypt-shared-secret-cache-slabs",
1244 dnscrypt_shared_secret_cache_slabs)
1245 else O_MEM(opt, "dnscrypt-nonce-cache-size",
1246 dnscrypt_nonce_cache_size)
1247 else O_DEC(opt, "dnscrypt-nonce-cache-slabs",
1248 dnscrypt_nonce_cache_slabs)
1250 else O_YNO(opt, "unblock-lan-zones", unblock_lan_zones)
1251 else O_YNO(opt, "insecure-lan-zones", insecure_lan_zones)
1252 else O_DEC(opt, "max-udp-size", max_udp_size)
1253 else O_LST(opt, "python-script", python_script)
1254 else O_LST(opt, "dynlib-file", dynlib_file)
1255 else O_YNO(opt, "disable-dnssec-lame-check", disable_dnssec_lame_check)
1256 else O_DEC(opt, "ip-ratelimit-cookie", ip_ratelimit_cookie)
1257 else O_DEC(opt, "ip-ratelimit", ip_ratelimit)
1258 else O_DEC(opt, "ratelimit", ratelimit)
1259 else O_MEM(opt, "ip-ratelimit-size", ip_ratelimit_size)
1260 else O_MEM(opt, "ratelimit-size", ratelimit_size)
1261 else O_DEC(opt, "ip-ratelimit-slabs", ip_ratelimit_slabs)
1262 else O_DEC(opt, "ratelimit-slabs", ratelimit_slabs)
1263 else O_LS2(opt, "ratelimit-for-domain", ratelimit_for_domain)
1264 else O_LS2(opt, "ratelimit-below-domain", ratelimit_below_domain)
1265 else O_DEC(opt, "ip-ratelimit-factor", ip_ratelimit_factor)
1266 else O_DEC(opt, "ratelimit-factor", ratelimit_factor)
1267 else O_YNO(opt, "ip-ratelimit-backoff", ip_ratelimit_backoff)
1268 else O_YNO(opt, "ratelimit-backoff", ratelimit_backoff)
1269 else O_UNS(opt, "outbound-msg-retry", outbound_msg_retry)
1270 else O_UNS(opt, "max-sent-count", max_sent_count)
1271 else O_UNS(opt, "max-query-restarts", max_query_restarts)
1272 else O_DEC(opt, "fast-server-num", fast_server_num)
1273 else O_DEC(opt, "fast-server-permil", fast_server_permil)
1274 else O_DEC(opt, "val-sig-skew-min", val_sig_skew_min)
1275 else O_DEC(opt, "val-sig-skew-max", val_sig_skew_max)
1276 else O_DEC(opt, "val-max-restart", val_max_restart)
1277 else O_YNO(opt, "qname-minimisation", qname_minimisation)
1278 else O_YNO(opt, "qname-minimisation-strict", qname_minimisation_strict)
1279 else O_IFC(opt, "define-tag", num_tags, tagname)
1280 else O_LTG(opt, "local-zone-tag", local_zone_tags)
1281 else O_LTG(opt, "access-control-tag", acl_tags)
1282 else O_LTG(opt, "response-ip-tag", respip_tags)
1283 else O_LS3(opt, "local-zone-override", local_zone_overrides)
1284 else O_LS3(opt, "access-control-tag-action", acl_tag_actions)
1285 else O_LS3(opt, "access-control-tag-data", acl_tag_datas)
1286 else O_LS2(opt, "access-control-view", acl_view)
1287 else O_LS2(opt, "interface-action", interface_actions)
1288 else O_LTG(opt, "interface-tag", interface_tags)
1289 else O_LS3(opt, "interface-tag-action", interface_tag_actions)
1290 else O_LS3(opt, "interface-tag-data", interface_tag_datas)
1291 else O_LS2(opt, "interface-view", interface_view)
1292 else O_YNO(opt, "pad-responses", pad_responses)
1293 else O_DEC(opt, "pad-responses-block-size", pad_responses_block_size)
1294 else O_YNO(opt, "pad-queries", pad_queries)
1295 else O_DEC(opt, "pad-queries-block-size", pad_queries_block_size)
1296 else O_LS2(opt, "edns-client-strings", edns_client_strings)
1297 else O_LST(opt, "proxy-protocol-port", proxy_protocol_port)
1299 else O_YNO(opt, "ipsecmod-enabled", ipsecmod_enabled)
1300 else O_YNO(opt, "ipsecmod-ignore-bogus", ipsecmod_ignore_bogus)
1301 else O_STR(opt, "ipsecmod-hook", ipsecmod_hook)
1302 else O_DEC(opt, "ipsecmod-max-ttl", ipsecmod_max_ttl)
1303 else O_LST(opt, "ipsecmod-whitelist", ipsecmod_whitelist)
1304 else O_YNO(opt, "ipsecmod-strict", ipsecmod_strict)
1307 else O_STR(opt, "backend", cachedb_backend)
1308 else O_STR(opt, "secret-seed", cachedb_secret)
1310 else O_STR(opt, "redis-server-host", redis_server_host)
1311 else O_DEC(opt, "redis-server-port", redis_server_port)
1312 else O_STR(opt, "redis-server-path", redis_server_path)
1313 else O_STR(opt, "redis-server-password", redis_server_password)
1314 else O_DEC(opt, "redis-timeout", redis_timeout)
1315 else O_YNO(opt, "redis-expire-records", redis_expire_records)
1316 #endif /* USE_REDIS */
1317 #endif /* USE_CACHEDB */
1319 else O_STR(opt, "name-v4", ipset_name_v4)
1320 else O_STR(opt, "name-v6", ipset_name_v6)
1323 * outgoing-permit, outgoing-avoid - have list of ports
1324 * local-zone - zones and nodefault variables
1325 * local-data - see below
1326 * local-data-ptr - converted to local-data entries
1327 * stub-zone, name, stub-addr, stub-host, stub-prime
1328 * forward-zone, name, forward-addr, forward-host
1334 /** initialize the global cfg_parser object */
1336 create_cfg_parser(struct config_file* cfg, char* filename, const char* chroot)
1338 static struct config_parser_state st;
1340 cfg_parser->filename = filename;
1341 cfg_parser->line = 1;
1342 cfg_parser->errors = 0;
1343 cfg_parser->cfg = cfg;
1344 cfg_parser->chroot = chroot;
1345 cfg_parser->started_toplevel = 0;
1350 config_read(struct config_file* cfg, const char* filename, const char* chroot)
1353 char *fname = (char*)filename;
1362 /* check for wildcards */
1364 if(!(!strchr(fname, '*') && !strchr(fname, '?') && !strchr(fname, '[') &&
1365 !strchr(fname, '{') && !strchr(fname, '~'))) {
1366 verbose(VERB_QUERY, "wildcard found, processing %s", fname);
1381 memset(&g, 0, sizeof(g));
1382 r = glob(fname, flags, NULL, &g);
1386 if(r == GLOB_NOMATCH) {
1387 verbose(VERB_QUERY, "include: "
1388 "no matches for %s", fname);
1390 } else if(r == GLOB_NOSPACE) {
1391 log_err("include: %s: "
1392 "fnametern out of memory", fname);
1393 } else if(r == GLOB_ABORTED) {
1394 log_err("wildcard include: %s: expansion "
1395 "aborted (%s)", fname, strerror(errno));
1397 log_err("wildcard include: %s: expansion "
1398 "failed (%s)", fname, strerror(errno));
1400 /* ignore globs that yield no files */
1403 /* process files found, if any */
1404 for(i=0; i<(size_t)g.gl_pathc; i++) {
1405 if(!config_read(cfg, g.gl_pathv[i], chroot)) {
1406 log_err("error reading wildcard "
1407 "include: %s", g.gl_pathv[i]);
1415 #endif /* HAVE_GLOB */
1417 in = fopen(fname, "r");
1419 log_err("Could not open %s: %s", fname, strerror(errno));
1422 create_cfg_parser(cfg, fname, chroot);
1427 if(!cfg->dnscrypt) cfg->dnscrypt_port = 0;
1429 if(cfg_parser->errors != 0) {
1430 fprintf(stderr, "read %s failed: %d errors in configuration file\n",
1431 fname, cfg_parser->errors);
1439 struct config_stub* cfg_stub_find(struct config_stub*** pp, const char* nm)
1441 struct config_stub* p = *(*pp);
1443 if(strcmp(p->name, nm) == 0)
1452 config_delstrlist(struct config_strlist* p)
1454 struct config_strlist *np;
1464 config_deldblstrlist(struct config_str2list* p)
1466 struct config_str2list *np;
1477 config_deltrplstrlist(struct config_str3list* p)
1479 struct config_str3list *np;
1491 config_delauth(struct config_auth* p)
1495 config_delstrlist(p->masters);
1496 config_delstrlist(p->urls);
1497 config_delstrlist(p->allow_notify);
1499 free(p->rpz_taglist);
1500 free(p->rpz_action_override);
1502 free(p->rpz_log_name);
1507 config_delauths(struct config_auth* p)
1509 struct config_auth* np;
1518 config_delstub(struct config_stub* p)
1522 config_delstrlist(p->hosts);
1523 config_delstrlist(p->addrs);
1528 config_delstubs(struct config_stub* p)
1530 struct config_stub* np;
1539 config_delview(struct config_view* p)
1543 config_deldblstrlist(p->local_zones);
1544 config_delstrlist(p->local_zones_nodefault);
1546 config_delstrlist(p->local_zones_ipset);
1548 config_delstrlist(p->local_data);
1553 config_delviews(struct config_view* p)
1555 struct config_view* np;
1564 config_del_strarray(char** array, int num)
1569 for(i=0; i<num; i++) {
1576 config_del_strbytelist(struct config_strbytelist* p)
1578 struct config_strbytelist* np;
1589 config_delete(struct config_file* cfg)
1592 free(cfg->username);
1593 free(cfg->chrootdir);
1594 free(cfg->directory);
1597 free(cfg->if_automatic_ports);
1598 free(cfg->target_fetch_policy);
1599 free(cfg->ssl_service_key);
1600 free(cfg->ssl_service_pem);
1601 free(cfg->tls_cert_bundle);
1602 config_delstrlist(cfg->tls_additional_port);
1603 config_delstrlist(cfg->tls_session_ticket_keys.first);
1604 free(cfg->tls_ciphers);
1605 free(cfg->tls_ciphersuites);
1606 free(cfg->http_endpoint);
1607 if(cfg->log_identity) {
1608 log_ident_revert_to_default();
1609 free(cfg->log_identity);
1611 config_del_strarray(cfg->ifs, cfg->num_ifs);
1612 config_del_strarray(cfg->out_ifs, cfg->num_out_ifs);
1613 config_delstubs(cfg->stubs);
1614 config_delstubs(cfg->forwards);
1615 config_delauths(cfg->auths);
1616 config_delviews(cfg->views);
1617 config_delstrlist(cfg->donotqueryaddrs);
1618 config_delstrlist(cfg->root_hints);
1619 #ifdef CLIENT_SUBNET
1620 config_delstrlist(cfg->client_subnet);
1621 config_delstrlist(cfg->client_subnet_zone);
1623 free(cfg->identity);
1625 free(cfg->http_user_agent);
1626 free(cfg->nsid_cfg_str);
1628 free(cfg->module_conf);
1629 free(cfg->outgoing_avail_ports);
1630 config_delstrlist(cfg->caps_whitelist);
1631 config_delstrlist(cfg->private_address);
1632 config_delstrlist(cfg->private_domain);
1633 config_delstrlist(cfg->auto_trust_anchor_file_list);
1634 config_delstrlist(cfg->trust_anchor_file_list);
1635 config_delstrlist(cfg->trusted_keys_file_list);
1636 config_delstrlist(cfg->trust_anchor_list);
1637 config_delstrlist(cfg->domain_insecure);
1638 config_deldblstrlist(cfg->acls);
1639 config_deldblstrlist(cfg->tcp_connection_limits);
1640 free(cfg->val_nsec3_key_iterations);
1641 config_deldblstrlist(cfg->local_zones);
1642 config_delstrlist(cfg->local_zones_nodefault);
1644 config_delstrlist(cfg->local_zones_ipset);
1646 config_delstrlist(cfg->local_data);
1647 config_deltrplstrlist(cfg->local_zone_overrides);
1648 config_del_strarray(cfg->tagname, cfg->num_tags);
1649 config_del_strbytelist(cfg->local_zone_tags);
1650 config_del_strbytelist(cfg->respip_tags);
1651 config_deldblstrlist(cfg->acl_view);
1652 config_del_strbytelist(cfg->acl_tags);
1653 config_deltrplstrlist(cfg->acl_tag_actions);
1654 config_deltrplstrlist(cfg->acl_tag_datas);
1655 config_deldblstrlist(cfg->interface_actions);
1656 config_deldblstrlist(cfg->interface_view);
1657 config_del_strbytelist(cfg->interface_tags);
1658 config_deltrplstrlist(cfg->interface_tag_actions);
1659 config_deltrplstrlist(cfg->interface_tag_datas);
1660 config_delstrlist(cfg->control_ifs.first);
1661 free(cfg->server_key_file);
1662 free(cfg->server_cert_file);
1663 free(cfg->control_key_file);
1664 free(cfg->control_cert_file);
1665 free(cfg->nat64_prefix);
1666 free(cfg->dns64_prefix);
1667 config_delstrlist(cfg->dns64_ignore_aaaa);
1668 free(cfg->dnstap_socket_path);
1669 free(cfg->dnstap_ip);
1670 free(cfg->dnstap_tls_server_name);
1671 free(cfg->dnstap_tls_cert_bundle);
1672 free(cfg->dnstap_tls_client_key_file);
1673 free(cfg->dnstap_tls_client_cert_file);
1674 free(cfg->dnstap_identity);
1675 free(cfg->dnstap_version);
1676 config_deldblstrlist(cfg->ratelimit_for_domain);
1677 config_deldblstrlist(cfg->ratelimit_below_domain);
1678 config_delstrlist(cfg->python_script);
1679 config_delstrlist(cfg->dynlib_file);
1680 config_deldblstrlist(cfg->edns_client_strings);
1681 config_delstrlist(cfg->proxy_protocol_port);
1683 free(cfg->ipsecmod_hook);
1684 config_delstrlist(cfg->ipsecmod_whitelist);
1687 free(cfg->cachedb_backend);
1688 free(cfg->cachedb_secret);
1690 free(cfg->redis_server_host);
1691 free(cfg->redis_server_path);
1692 free(cfg->redis_server_password);
1693 #endif /* USE_REDIS */
1694 #endif /* USE_CACHEDB */
1696 free(cfg->ipset_name_v4);
1697 free(cfg->ipset_name_v6);
1703 init_cookie_secret(uint8_t* cookie_secret, size_t cookie_secret_len)
1705 struct ub_randstate *rand = ub_initstate(NULL);
1708 fatal_exit("could not init random generator");
1709 while (cookie_secret_len) {
1710 *cookie_secret++ = (uint8_t)ub_random(rand);
1711 cookie_secret_len--;
1717 init_outgoing_availports(int* a, int num)
1719 /* generated with make iana_update */
1720 const int iana_assigned[] = {
1721 #include "util/iana_ports.inc"
1722 -1 }; /* end marker to put behind trailing comma */
1725 /* do not use <1024, that could be trouble with the system, privs */
1726 for(i=1024; i<num; i++) {
1729 /* create empty spot at 49152 to keep ephemeral ports available
1730 * to other programs */
1731 for(i=49152; i<49152+256; i++)
1733 /* pick out all the IANA assigned ports */
1734 for(i=0; iana_assigned[i]!=-1; i++) {
1735 if(iana_assigned[i] < num)
1736 a[iana_assigned[i]] = 0;
1741 cfg_mark_ports(const char* str, int allow, int* avail, int num)
1743 char* mid = strchr(str, '-');
1744 #ifdef DISABLE_EXPLICIT_PORT_RANDOMISATION
1745 log_warn("Explicit port randomisation disabled, ignoring "
1746 "outgoing-port-permit and outgoing-port-avoid configuration "
1750 int port = atoi(str);
1751 if(port == 0 && strcmp(str, "0") != 0) {
1752 log_err("cannot parse port number '%s'", str);
1756 avail[port] = (allow?port:0);
1758 int i, low, high = atoi(mid+1);
1760 if(high == 0 && strcmp(mid+1, "0") != 0) {
1761 log_err("cannot parse port number '%s'", mid+1);
1764 if( (int)(mid-str)+1 >= (int)sizeof(buf) ) {
1765 log_err("cannot parse port number '%s'", str);
1769 memcpy(buf, str, (size_t)(mid-str));
1772 if(low == 0 && strcmp(buf, "0") != 0) {
1773 log_err("cannot parse port number '%s'", buf);
1776 for(i=low; i<=high; i++) {
1778 avail[i] = (allow?i:0);
1786 cfg_scan_ports(int* avail, int num)
1790 for(i=0; i<num; i++) {
1797 int cfg_condense_ports(struct config_file* cfg, int** avail)
1799 int num = cfg_scan_ports(cfg->outgoing_avail_ports, 65536);
1804 *avail = (int*)reallocarray(NULL, (size_t)num, sizeof(int));
1807 for(i=0; i<65536; i++) {
1808 if(cfg->outgoing_avail_ports[i])
1809 (*avail)[at++] = cfg->outgoing_avail_ports[i];
1811 log_assert(at == num);
1815 void cfg_apply_local_port_policy(struct config_file* cfg, int num) {
1818 #ifdef USE_LINUX_IP_LOCAL_PORT_RANGE
1822 if ((range_fd = fopen(LINUX_IP_LOCAL_PORT_RANGE_PATH, "r")) != NULL) {
1824 int max_port = num - 1;
1825 if (fscanf(range_fd, "%d %d", &min_port, &max_port) == 2) {
1826 for(i=0; i<min_port; i++) {
1827 cfg->outgoing_avail_ports[i] = 0;
1829 for(i=max_port+1; i<num; i++) {
1830 cfg->outgoing_avail_ports[i] = 0;
1833 log_err("unexpected port range in %s",
1834 LINUX_IP_LOCAL_PORT_RANGE_PATH);
1838 log_err("failed to read from file: %s (%s)",
1839 LINUX_IP_LOCAL_PORT_RANGE_PATH,
1846 /** print error with file and line number */
1847 static void ub_c_error_va_list(const char *fmt, va_list args)
1849 cfg_parser->errors++;
1850 fprintf(stderr, "%s:%d: error: ", cfg_parser->filename,
1852 vfprintf(stderr, fmt, args);
1853 fprintf(stderr, "\n");
1856 /** print error with file and line number */
1857 void ub_c_error_msg(const char* fmt, ...)
1860 va_start(args, fmt);
1861 ub_c_error_va_list(fmt, args);
1865 void ub_c_error(const char *str)
1867 cfg_parser->errors++;
1868 if(strcmp(str, "syntax error")==0 && cfg_parser->started_toplevel ==0)
1869 str = "syntax error, is there no section start after an "
1870 "include-toplevel directive perhaps.";
1871 fprintf(stderr, "%s:%d: error: %s\n", cfg_parser->filename,
1872 cfg_parser->line, str);
1880 int cfg_strlist_append(struct config_strlist_head* list, char* item)
1882 struct config_strlist *s;
1883 if(!item || !list) {
1887 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist));
1895 list->last->next = s;
1903 cfg_region_strlist_insert(struct regional* region,
1904 struct config_strlist** head, char* item)
1906 struct config_strlist *s;
1909 s = (struct config_strlist*)regional_alloc_zero(region,
1910 sizeof(struct config_strlist));
1919 struct config_strlist*
1920 cfg_strlist_find(struct config_strlist* head, const char *item)
1922 struct config_strlist *s = head;
1927 if(strcmp(s->str, item) == 0) {
1936 cfg_strlist_insert(struct config_strlist** head, char* item)
1938 struct config_strlist *s;
1939 if(!item || !head) {
1943 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist));
1955 cfg_strlist_append_ex(struct config_strlist** head, char* item)
1957 struct config_strlist *s;
1960 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist));
1969 struct config_strlist *last = *head;
1970 while (last->next!=NULL) {
1980 cfg_str2list_insert(struct config_str2list** head, char* item, char* i2)
1982 struct config_str2list *s;
1983 if(!item || !i2 || !head) {
1988 s = (struct config_str2list*)calloc(1, sizeof(struct config_str2list));
2002 cfg_str3list_insert(struct config_str3list** head, char* item, char* i2,
2005 struct config_str3list *s;
2006 if(!item || !i2 || !i3 || !head)
2008 s = (struct config_str3list*)calloc(1, sizeof(struct config_str3list));
2020 cfg_strbytelist_insert(struct config_strbytelist** head, char* item,
2021 uint8_t* i2, size_t i2len)
2023 struct config_strbytelist* s;
2024 if(!item || !i2 || !head)
2026 s = (struct config_strbytelist*)calloc(1, sizeof(*s));
2038 cfg_convert_timeval(const char* str)
2042 memset(&tm, 0, sizeof(tm));
2043 if(strlen(str) < 14)
2045 if(sscanf(str, "%4d%2d%2d%2d%2d%2d", &tm.tm_year, &tm.tm_mon,
2046 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) != 6)
2051 if (tm.tm_year < 70) return 0;
2052 if (tm.tm_mon < 0 || tm.tm_mon > 11) return 0;
2053 if (tm.tm_mday < 1 || tm.tm_mday > 31) return 0;
2054 if (tm.tm_hour < 0 || tm.tm_hour > 23) return 0;
2055 if (tm.tm_min < 0 || tm.tm_min > 59) return 0;
2056 if (tm.tm_sec < 0 || tm.tm_sec > 59) return 0;
2057 /* call ldns conversion function */
2058 t = sldns_mktime_from_utc(&tm);
2063 cfg_count_numbers(const char* s)
2065 /* format ::= (sp num)+ sp */
2066 /* num ::= [-](0-9)+ */
2067 /* sp ::= (space|tab)* */
2070 while(*s && isspace((unsigned char)*s))
2072 if(!*s) /* end of string */
2076 if(!*s) /* only - not allowed */
2078 if(!isdigit((unsigned char)*s)) /* bad character */
2080 while(*s && isdigit((unsigned char)*s))
2087 /** all digit number */
2088 static int isalldigit(const char* str, size_t l)
2092 if(!isdigit((unsigned char)str[i]))
2098 cfg_parse_memsize(const char* str, size_t* res)
2102 if(!str || (len=(size_t)strlen(str)) == 0) {
2103 log_err("not a size: '%s'", str);
2106 if(isalldigit(str, len)) {
2107 *res = (size_t)atol(str);
2110 /* check appended num */
2111 while(len>0 && str[len-1]==' ')
2113 if(len > 1 && str[len-1] == 'b')
2115 else if(len > 1 && str[len-1] == 'B')
2118 if(len > 1 && tolower((unsigned char)str[len-1]) == 'g')
2119 mult = 1024*1024*1024;
2120 else if(len > 1 && tolower((unsigned char)str[len-1]) == 'm')
2122 else if(len > 1 && tolower((unsigned char)str[len-1]) == 'k')
2124 else if(len > 0 && isdigit((unsigned char)str[len-1]))
2127 log_err("unknown size specifier: '%s'", str);
2130 while(len>1 && str[len-2]==' ')
2133 if(!isalldigit(str, len-1)) {
2134 log_err("unknown size specifier: '%s'", str);
2137 *res = ((size_t)atol(str)) * mult;
2142 find_tag_id(struct config_file* cfg, const char* tag)
2145 for(i=0; i<cfg->num_tags; i++) {
2146 if(strcmp(cfg->tagname[i], tag) == 0)
2153 config_add_tag(struct config_file* cfg, const char* tag)
2157 if(find_tag_id(cfg, tag) != -1)
2158 return 1; /* nothing to do */
2159 newarray = (char**)malloc(sizeof(char*)*(cfg->num_tags+1));
2162 newtag = strdup(tag);
2168 memcpy(newarray, cfg->tagname, sizeof(char*)*cfg->num_tags);
2171 newarray[cfg->num_tags++] = newtag;
2172 cfg->tagname = newarray;
2176 /** set a bit in a bit array */
2178 cfg_set_bit(uint8_t* bitlist, size_t len, int id)
2181 log_assert((size_t)pos < len);
2183 bitlist[pos] |= 1<<(id%8);
2186 uint8_t* config_parse_taglist(struct config_file* cfg, char* str,
2189 uint8_t* taglist = NULL;
2194 if(cfg->num_tags == 0) {
2195 log_err("parse taglist, but no tags defined");
2198 len = (size_t)(cfg->num_tags+7)/8;
2199 taglist = calloc(1, len);
2201 log_err("out of memory");
2207 while((p=strsep(&s, " \t\n")) != NULL) {
2209 int id = find_tag_id(cfg, p);
2210 /* set this bit in the bitlist */
2212 log_err("unknown tag: %s", p);
2216 cfg_set_bit(taglist, len, id);
2224 uint8_t* cfg_parse_nsid(const char* str, uint16_t* nsid_len)
2226 uint8_t* nsid = NULL;
2228 if (strncasecmp(str, "ascii_", 6) == 0) {
2229 if ((nsid = (uint8_t *)strdup(str + 6)))
2230 *nsid_len = strlen(str + 6);
2232 } else if (strlen(str) % 2) {
2233 ; /* hex string has even number of characters */
2236 else if (*str && (nsid = calloc(1, strlen(str) / 2))) {
2240 for ( ch = str, dp = nsid
2241 ; isxdigit(ch[0]) && isxdigit(ch[1])
2243 *dp = (uint8_t)sldns_hexdigit_to_int(ch[0]) * 16;
2244 *dp += (uint8_t)sldns_hexdigit_to_int(ch[1]);
2250 *nsid_len = strlen(str) / 2;
2256 char* config_taglist2str(struct config_file* cfg, uint8_t* taglist,
2260 size_t i, j, len = 0;
2262 for(i=0; i<taglen; i++) {
2265 for(j=0; j<8; j++) {
2266 if((taglist[i] & (1<<j)) != 0) {
2267 size_t id = i*8 + j;
2268 snprintf(buf+len, sizeof(buf)-len, "%s%s",
2269 (len==0?"":" "), cfg->tagname[id]);
2270 len += strlen(buf+len);
2277 int taglist_intersect(uint8_t* list1, size_t list1len, const uint8_t* list2,
2281 if(!list1 || !list2)
2283 for(i=0; i<list1len && i<list2len; i++) {
2284 if((list1[i] & list2[i]) != 0)
2291 config_apply(struct config_file* config)
2293 MAX_TTL = (time_t)config->max_ttl;
2294 MIN_TTL = (time_t)config->min_ttl;
2295 SERVE_EXPIRED = config->serve_expired;
2296 SERVE_EXPIRED_TTL = (time_t)config->serve_expired_ttl;
2297 SERVE_EXPIRED_REPLY_TTL = (time_t)config->serve_expired_reply_ttl;
2298 SERVE_ORIGINAL_TTL = config->serve_original_ttl;
2299 MAX_NEG_TTL = (time_t)config->max_negative_ttl;
2300 RTT_MIN_TIMEOUT = config->infra_cache_min_rtt;
2301 RTT_MAX_TIMEOUT = config->infra_cache_max_rtt;
2302 EDNS_ADVERTISED_SIZE = (uint16_t)config->edns_buffer_size;
2303 MINIMAL_RESPONSES = config->minimal_responses;
2304 RRSET_ROUNDROBIN = config->rrset_roundrobin;
2305 LOG_TAG_QUERYREPLY = config->log_tag_queryreply;
2306 UNKNOWN_SERVER_NICENESS = config->unknown_server_time_limit;
2307 USEFUL_SERVER_TOP_TIMEOUT = RTT_MAX_TIMEOUT;
2308 BLACKLIST_PENALTY = USEFUL_SERVER_TOP_TIMEOUT*4;
2309 log_set_time_asc(config->log_time_ascii);
2310 autr_permit_small_holddown = config->permit_small_holddown;
2311 stream_wait_max = config->stream_wait_size;
2312 http2_query_buffer_max = config->http_query_buffer_size;
2313 http2_response_buffer_max = config->http_response_buffer_size;
2316 void config_lookup_uid(struct config_file* cfg)
2318 #ifdef HAVE_GETPWNAM
2319 /* translate username into uid and gid */
2320 if(cfg->username && cfg->username[0]) {
2322 if((pwd = getpwnam(cfg->username)) != NULL) {
2323 cfg_uid = pwd->pw_uid;
2324 cfg_gid = pwd->pw_gid;
2333 * Calculate string length of full pathname in original filesys
2334 * @param fname: the path name to convert.
2335 * Must not be null or empty.
2336 * @param cfg: config struct for chroot and chdir (if set).
2337 * @param use_chdir: if false, only chroot is applied.
2338 * @return length of string.
2339 * remember to allocate one more for 0 at end in mallocs.
2342 strlen_after_chroot(const char* fname, struct config_file* cfg, int use_chdir)
2346 if(cfg->chrootdir && cfg->chrootdir[0] &&
2347 strncmp(cfg->chrootdir, fname, strlen(cfg->chrootdir)) == 0) {
2348 /* already full pathname, return it */
2349 return strlen(fname);
2352 if(cfg->chrootdir && cfg->chrootdir[0]) {
2353 /* start with chrootdir */
2354 len += strlen(cfg->chrootdir);
2358 #ifdef UB_ON_WINDOWS
2359 if(fname[0] != 0 && fname[1] == ':') {
2360 /* full path, no chdir */
2363 if(fname[0] == '/' || !use_chdir) {
2364 /* full path, no chdir */
2365 } else if(cfg->directory && cfg->directory[0]) {
2367 if(slashit && cfg->directory[0] != '/')
2369 if(cfg->chrootdir && cfg->chrootdir[0] &&
2370 strncmp(cfg->chrootdir, cfg->directory,
2371 strlen(cfg->chrootdir)) == 0)
2372 len += strlen(cfg->directory)-strlen(cfg->chrootdir);
2373 else len += strlen(cfg->directory);
2377 if(slashit && fname[0] != '/')
2379 len += strlen(fname);
2384 fname_after_chroot(const char* fname, struct config_file* cfg, int use_chdir)
2386 size_t len = strlen_after_chroot(fname, cfg, use_chdir)+1;
2388 char* buf = (char*)malloc(len);
2392 /* is fname already in chroot ? */
2393 if(cfg->chrootdir && cfg->chrootdir[0] &&
2394 strncmp(cfg->chrootdir, fname, strlen(cfg->chrootdir)) == 0) {
2395 /* already full pathname, return it */
2396 (void)strlcpy(buf, fname, len);
2401 if(cfg->chrootdir && cfg->chrootdir[0]) {
2402 /* start with chrootdir */
2403 (void)strlcpy(buf, cfg->chrootdir, len);
2406 #ifdef UB_ON_WINDOWS
2407 if(fname[0] != 0 && fname[1] == ':') {
2408 /* full path, no chdir */
2412 if(fname[0] == '/' || !use_chdir) {
2413 /* full path, no chdir */
2414 } else if(cfg->directory && cfg->directory[0]) {
2416 if(slashit && cfg->directory[0] != '/')
2417 (void)strlcat(buf, "/", len);
2418 /* is the directory already in the chroot? */
2419 if(cfg->chrootdir && cfg->chrootdir[0] &&
2420 strncmp(cfg->chrootdir, cfg->directory,
2421 strlen(cfg->chrootdir)) == 0)
2422 (void)strlcat(buf, cfg->directory+strlen(cfg->chrootdir),
2424 else (void)strlcat(buf, cfg->directory, len);
2428 if(slashit && fname[0] != '/')
2429 (void)strlcat(buf, "/", len);
2430 (void)strlcat(buf, fname, len);
2435 /** return next space character in string */
2436 static char* next_space_pos(const char* str)
2438 char* sp = strchr(str, ' ');
2439 char* tab = strchr(str, '\t');
2444 return (sp<tab)?sp:tab;
2447 /** return last space character in string */
2448 static char* last_space_pos(const char* str)
2450 char* sp = strrchr(str, ' ');
2451 char* tab = strrchr(str, '\t');
2456 return (sp>tab)?sp:tab;
2460 cfg_parse_local_zone(struct config_file* cfg, const char* val)
2462 const char *type, *name_end, *name;
2465 /* parse it as: [zone_name] [between stuff] [zone_type] */
2467 while(*name && isspace((unsigned char)*name))
2470 log_err("syntax error: too short: %s", val);
2473 name_end = next_space_pos(name);
2474 if(!name_end || !*name_end) {
2475 log_err("syntax error: expected zone type: %s", val);
2478 if (name_end - name > 255) {
2479 log_err("syntax error: bad zone name: %s", val);
2482 (void)strlcpy(buf, name, sizeof(buf));
2483 buf[name_end-name] = '\0';
2485 type = last_space_pos(name_end);
2486 while(type && *type && isspace((unsigned char)*type))
2488 if(!type || !*type) {
2489 log_err("syntax error: expected zone type: %s", val);
2493 if(strcmp(type, "nodefault")==0) {
2494 return cfg_strlist_insert(&cfg->local_zones_nodefault,
2497 } else if(strcmp(type, "ipset")==0) {
2498 return cfg_strlist_insert(&cfg->local_zones_ipset,
2502 return cfg_str2list_insert(&cfg->local_zones, strdup(buf),
2507 char* cfg_ptr_reverse(char* str)
2513 struct sockaddr_storage addr;
2516 /* parse it as: [IP] [between stuff] [name] */
2518 while(*ip && isspace((unsigned char)*ip))
2521 log_err("syntax error: too short: %s", str);
2524 ip_end = next_space_pos(ip);
2525 if(!ip_end || !*ip_end) {
2526 log_err("syntax error: expected name: %s", str);
2530 name = last_space_pos(ip_end);
2531 if(!name || !*name) {
2532 log_err("syntax error: expected name: %s", str);
2536 sscanf(ip, "%100s", buf);
2537 buf[sizeof(buf)-1]=0;
2539 if(!ipstrtoaddr(buf, UNBOUND_DNS_PORT, &addr, &addrlen)) {
2540 log_err("syntax error: cannot parse address: %s", str);
2545 * ddd.ddd.ddd.ddd.in-addr-arpa.
2546 * IPv6: (h.){32}.ip6.arpa. */
2548 if(addr_is_ip6(&addr, addrlen)) {
2550 const char* hex = "0123456789abcdef";
2553 memmove(ad, &((struct sockaddr_in6*)&addr)->sin6_addr,
2555 for(i=15; i>=0; i--) {
2557 *p++ = hex[ (b&0x0f) ];
2559 *p++ = hex[ (b&0xf0) >> 4 ];
2562 snprintf(buf+16*4, sizeof(buf)-16*4, "ip6.arpa. ");
2565 memmove(ad, &((struct sockaddr_in*)&addr)->sin_addr,
2567 snprintf(buf, sizeof(buf), "%u.%u.%u.%u.in-addr.arpa. ",
2568 (unsigned)ad[3], (unsigned)ad[2],
2569 (unsigned)ad[1], (unsigned)ad[0]);
2572 /* printed the reverse address, now the between goop and name on end */
2573 while(*ip_end && isspace((unsigned char)*ip_end))
2576 snprintf(buf+strlen(buf), sizeof(buf)-strlen(buf), "%.*s",
2577 (int)(name-ip_end), ip_end);
2579 snprintf(buf+strlen(buf), sizeof(buf)-strlen(buf), " PTR %s", name);
2581 result = strdup(buf);
2583 log_err("out of memory parsing %s", str);
2589 #ifdef UB_ON_WINDOWS
2591 w_lookup_reg_str(const char* key, const char* name)
2596 DWORD len = (DWORD)sizeof(buf);
2598 char* result = NULL;
2599 ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &hk);
2600 if(ret == ERROR_FILE_NOT_FOUND)
2601 return NULL; /* key does not exist */
2602 else if(ret != ERROR_SUCCESS) {
2603 log_err("RegOpenKeyEx failed");
2606 ret = RegQueryValueEx(hk, (LPCTSTR)name, 0, &type, buf, &len);
2608 log_err("RegCloseKey");
2609 if(ret == ERROR_FILE_NOT_FOUND)
2610 return NULL; /* name does not exist */
2611 else if(ret != ERROR_SUCCESS) {
2612 log_err("RegQueryValueEx failed");
2615 if(type == REG_SZ || type == REG_MULTI_SZ || type == REG_EXPAND_SZ) {
2616 buf[sizeof(buf)-1] = 0;
2617 buf[sizeof(buf)-2] = 0; /* for multi_sz */
2618 result = strdup((char*)buf);
2619 if(!result) log_err("out of memory");
2624 void w_config_adjust_directory(struct config_file* cfg)
2626 if(cfg->directory && cfg->directory[0]) {
2627 TCHAR dirbuf[2*MAX_PATH+4];
2628 if(strcmp(cfg->directory, "%EXECUTABLE%") == 0) {
2629 /* get executable path, and if that contains
2630 * directories, snip off the filename part */
2632 if(!GetModuleFileName(NULL, dirbuf, MAX_PATH))
2633 log_err("could not GetModuleFileName");
2634 if(strrchr(dirbuf, '\\')) {
2635 (strrchr(dirbuf, '\\'))[0] = 0;
2636 } else log_err("GetModuleFileName had no path");
2638 /* adjust directory for later lookups to work*/
2639 free(cfg->directory);
2640 cfg->directory = memdup(dirbuf, strlen(dirbuf)+1);
2645 #endif /* UB_ON_WINDOWS */
2647 int options_remote_is_address(struct config_file* cfg)
2649 if(!cfg->remote_control_enable) return 0;
2650 if(!cfg->control_ifs.first) return 1;
2651 if(!cfg->control_ifs.first->str) return 1;
2652 if(cfg->control_ifs.first->str[0] == 0) return 1;
2653 return (cfg->control_ifs.first->str[0] != '/');
2656 /** see if interface is https, its port number == the https port number */
2658 if_is_https(const char* ifname, const char* port, int https_port)
2660 char* p = strchr(ifname, '@');
2661 if(!p && atoi(port) == https_port)
2663 if(p && atoi(p+1) == https_port)
2668 /** see if config contains https turned on */
2669 int cfg_has_https(struct config_file* cfg)
2673 snprintf(portbuf, sizeof(portbuf), "%d", cfg->port);
2674 for(i = 0; i<cfg->num_ifs; i++) {
2675 if(if_is_https(cfg->ifs[i], portbuf, cfg->https_port))
2681 /** see if interface is PROXYv2, its port number == the proxy port number */
2683 if_is_pp2(const char* ifname, const char* port,
2684 struct config_strlist* proxy_protocol_port)
2686 struct config_strlist* s;
2687 char* p = strchr(ifname, '@');
2688 for(s = proxy_protocol_port; s; s = s->next) {
2689 if(p && atoi(p+1) == atoi(s->str))
2691 if(!p && atoi(port) == atoi(s->str))
2697 /** see if interface is DNSCRYPT, its port number == the dnscrypt port number */
2699 if_is_dnscrypt(const char* ifname, const char* port, int dnscrypt_port)
2702 return ((strchr(ifname, '@') &&
2703 atoi(strchr(ifname, '@')+1) == dnscrypt_port) ||
2704 (!strchr(ifname, '@') && atoi(port) == dnscrypt_port));
2708 (void)dnscrypt_port;