1 /* 2 * util/config_file.c - reads and stores the config file for unbound. 3 * 4 * Copyright (c) 2007, NLnet Labs. All rights reserved. 5 * 6 * This software is open source. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * 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. 18 * 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. 22 * 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. 34 */ 35 36 /** 37 * \file 38 * 39 * This file contains functions for the config file. 40 */ 41 42 #include "config.h" 43 #include <ctype.h> 44 #include <stdarg.h> 45 #ifdef HAVE_TIME_H 46 #include <time.h> 47 #endif 48 #include "util/log.h" 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" 59 #include "util/rtt.h" 60 #include "services/cache/infra.h" 61 #include "sldns/wire2str.h" 62 #include "sldns/parseutil.h" 63 #include "iterator/iterator.h" 64 #ifdef HAVE_GLOB_H 65 # include <glob.h> 66 #endif 67 #ifdef CLIENT_SUBNET 68 #include "edns-subnet/edns-subnet.h" 69 #endif 70 #ifdef HAVE_PWD_H 71 #include <pwd.h> 72 #endif 73 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; 84 85 /** global config during parsing */ 86 struct config_parser_state* cfg_parser = 0; 87 88 /** init ports possible for use */ 89 static void init_outgoing_availports(int* array, int num); 90 91 /** init cookie with random data */ 92 static void init_cookie_secret(uint8_t* cookie_secret, size_t cookie_secret_len); 93 94 struct config_file* 95 config_create(void) 96 { 97 struct config_file* cfg; 98 cfg = (struct config_file*)calloc(1, sizeof(struct config_file)); 99 if(!cfg) 100 return NULL; 101 /* the defaults if no config is present */ 102 cfg->verbosity = 1; 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; 109 cfg->do_ip4 = 1; 110 cfg->do_ip6 = 1; 111 cfg->do_udp = 1; 112 cfg->do_tcp = 1; 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; 117 cfg->tcp_mss = 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; 137 cfg->use_syslog = 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; 145 #ifndef USE_WINSOCK 146 # ifdef USE_MINI_EVENT 147 /* select max 1024 sockets */ 148 cfg->outgoing_num_ports = 960; 149 cfg->num_queries_per_thread = 512; 150 # else 151 /* libevent can use many sockets */ 152 cfg->outgoing_num_ports = 4096; 153 cfg->num_queries_per_thread = 1024; 154 # endif 155 cfg->outgoing_num_tcp = 10; 156 cfg->incoming_num_tcp = 10; 157 #else 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; 162 #endif 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; 171 cfg->host_ttl = 900; 172 cfg->bogus_ttl = 60; 173 cfg->min_ttl = 0; 174 cfg->max_ttl = 3600 * 24; 175 cfg->max_negative_ttl = 3600; 176 cfg->prefetch = 0; 177 cfg->prefetch_key = 0; 178 cfg->deny_any = 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)))) 187 goto error_exit; 188 init_outgoing_availports(cfg->outgoing_avail_ports, 65536); 189 if(!(cfg->username = strdup(UB_USERNAME))) goto error_exit; 190 #ifdef HAVE_CHROOT 191 if(!(cfg->chrootdir = strdup(CHROOT_DIR))) goto error_exit; 192 #endif 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; 206 cfg->so_rcvbuf = 0; 207 cfg->so_sndbuf = 0; 208 cfg->so_reuseport = REUSEPORT_DEFAULT; 209 cfg->ip_transparent = 0; 210 cfg->ip_freebind = 0; 211 cfg->ip_dscp = 0; 212 cfg->num_ifs = 0; 213 cfg->ifs = NULL; 214 cfg->num_out_ifs = 0; 215 cfg->out_ifs = NULL; 216 cfg->stubs = NULL; 217 cfg->forwards = NULL; 218 cfg->auths = NULL; 219 #ifdef CLIENT_SUBNET 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; 230 #endif 231 cfg->views = NULL; 232 cfg->acls = NULL; 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; 252 cfg->version = NULL; 253 cfg->http_user_agent = NULL; 254 cfg->nsid_cfg_str = NULL; 255 cfg->nsid = NULL; 256 cfg->nsid_len = 0; 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; 273 cfg->ignore_cd = 0; 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; 291 #ifdef USE_IPSET 292 cfg->local_zones_ipset = NULL; 293 #endif 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"))) 311 goto error_exit; 312 if(!(cfg->server_cert_file = strdup(RUN_DIR"/unbound_server.pem"))) 313 goto error_exit; 314 if(!(cfg->control_key_file = strdup(RUN_DIR"/unbound_control.key"))) 315 goto error_exit; 316 if(!(cfg->control_cert_file = strdup(RUN_DIR"/unbound_control.pem"))) 317 goto error_exit; 318 319 #ifdef CLIENT_SUBNET 320 if(!(cfg->module_conf = strdup("subnetcache validator iterator"))) goto error_exit; 321 #else 322 if(!(cfg->module_conf = strdup("validator iterator"))) goto error_exit; 323 #endif 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))) 328 goto error_exit; 329 #endif 330 cfg->dnstap_bidirectional = 1; 331 cfg->dnstap_tls = 1; 332 cfg->disable_dnssec_lame_check = 0; 333 cfg->ip_ratelimit_cookie = 0; 334 cfg->ip_ratelimit = 0; 335 cfg->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; 351 cfg->shm_enable = 0; 352 cfg->shm_key = 11777; 353 cfg->edns_client_strings = NULL; 354 cfg->edns_client_string_opcode = 65001; 355 cfg->dnscrypt = 0; 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 */ 369 #ifdef USE_IPSECMOD 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; 376 #endif 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); 381 #ifdef USE_CACHEDB 382 if(!(cfg->cachedb_backend = strdup("testframe"))) goto error_exit; 383 if(!(cfg->cachedb_secret = strdup("default"))) goto error_exit; 384 #ifdef USE_REDIS 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 */ 393 #ifdef USE_IPSET 394 cfg->ipset_name_v4 = NULL; 395 cfg->ipset_name_v6 = NULL; 396 #endif 397 cfg->ede = 0; 398 return cfg; 399 error_exit: 400 config_delete(cfg); 401 return NULL; 402 } 403 404 struct config_file* config_create_forlib(void) 405 { 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; 411 cfg->verbosity = 0; 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; 420 cfg->use_syslog = 0; 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; 430 return cfg; 431 } 432 433 /** 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)); } 482 483 int config_set_option(struct config_file* cfg, const char* opt, 484 const char* val) 485 { 486 char buf[64]; 487 if(!opt) return 0; 488 if(opt[strlen(opt)-1] != ':' && strlen(opt)+2<sizeof(buf)) { 489 snprintf(buf, sizeof(buf), "%s:", opt); 490 opt = buf; 491 } 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) 497 return 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 */ 501 return 0; 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; 516 } else { 517 if(atoi(val) == 0) return 0; 518 cfg->val_date_override = (uint32_t)atoi(val); 519 } 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) { 524 cfg->use_syslog = 0; 525 free(cfg->logfile); 526 return (cfg->logfile = strdup(val)) != NULL; 527 } 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; 619 } 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; 625 } 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))) 646 return 0; 647 /* Empty string is just validly unsetting nsid */ 648 if (*val == 0) { 649 free(cfg->nsid); 650 cfg->nsid = NULL; 651 cfg->nsid_len = 0; 652 return 1; 653 } 654 cfg->nsid = cfg_parse_nsid(val, &cfg->nsid_len); 655 return cfg->nsid != NULL; 656 } 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) 733 #ifdef CLIENT_SUBNET 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 737 * this option. */ 738 #endif 739 #ifdef USE_DNSTAP 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) 766 #endif 767 #ifdef USE_DNSCRYPT 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) 782 #endif 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; 786 } 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; 790 } 791 else if(strcmp(opt, "ratelimit:") == 0) { 792 IS_NUMBER_OR_ZERO; cfg->ratelimit = atoi(val); 793 infra_dp_ratelimit=cfg->ratelimit; 794 } 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) 815 #ifdef USE_IPSECMOD 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) 821 #endif 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); 834 char** oi = 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*)); 839 free(cfg->out_ifs); 840 } 841 oi[cfg->num_out_ifs++] = d; 842 cfg->out_ifs = oi; 843 } else { 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. */ 857 return 0; 858 } 859 return 1; 860 } 861 862 void config_print_func(char* line, void* arg) 863 { 864 FILE* f = (FILE*)arg; 865 (void)fprintf(f, "%s\n", line); 866 } 867 868 /** 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 */ 873 int status; 874 }; 875 876 void config_collate_func(char* line, void* arg) 877 { 878 struct config_collate_arg* m = (struct config_collate_arg*)arg; 879 if(m->status) 880 return; 881 if(!cfg_strlist_append(&m->list, strdup(line))) 882 m->status = 1; 883 } 884 885 int config_get_option_list(struct config_file* cfg, const char* opt, 886 struct config_strlist** list) 887 { 888 struct config_collate_arg m; 889 memset(&m, 0, sizeof(m)); 890 *list = NULL; 891 if(!config_get_option(cfg, opt, config_collate_func, &m)) 892 return 1; 893 if(m.status) { 894 config_delstrlist(m.list.first); 895 return 2; 896 } 897 *list = m.list.first; 898 return 0; 899 } 900 901 int 902 config_get_option_collate(struct config_file* cfg, const char* opt, char** str) 903 { 904 struct config_strlist* list = NULL; 905 int r; 906 *str = NULL; 907 if((r = config_get_option_list(cfg, opt, &list)) != 0) 908 return r; 909 *str = config_collate_cat(list); 910 config_delstrlist(list); 911 if(!*str) return 2; 912 return 0; 913 } 914 915 char* 916 config_collate_cat(struct config_strlist* list) 917 { 918 size_t total = 0, left; 919 struct config_strlist* s; 920 char *r, *w; 921 if(!list) /* no elements */ 922 return strdup(""); 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 */ 929 r = malloc(left); 930 if(!r) 931 return NULL; 932 w = r; 933 for(s=list; s; s=s->next) { 934 size_t this = strlen(s->str); 935 if(this+2 > left) { /* sanity check */ 936 free(r); 937 return NULL; 938 } 939 snprintf(w, left, "%s\n", s->str); 940 this = strlen(w); 941 w += this; 942 left -= this; 943 } 944 return r; 945 } 946 947 /** 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); \ 950 func(buf, arg);} 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); \ 954 func(buf, arg);} 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); \ 970 func(buf, arg);} 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) \ 975 func(p->str, arg); \ 976 } 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); \ 982 func(buf, arg); \ 983 } \ 984 } 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); \ 990 func(buf, arg); \ 991 } \ 992 } 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); \ 999 if(tmpstr) {\ 1000 snprintf(buf, len, "%s %s", p->str, tmpstr); \ 1001 func(buf, arg); \ 1002 free(tmpstr); \ 1003 } \ 1004 } \ 1005 } 1006 1007 int 1008 config_get_option(struct config_file* cfg, const char* opt, 1009 void (*func)(char*,void*), void* arg) 1010 { 1011 char buf[1024], nopt[64]; 1012 size_t len = sizeof(buf); 1013 if(!opt) return 0; 1014 if(opt && opt[strlen(opt)-1] == ':' && strlen(opt)<sizeof(nopt)) { 1015 memmove(nopt, opt, strlen(opt)); 1016 nopt[strlen(opt)-1] = 0; 1017 opt = nopt; 1018 } 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) 1204 #endif 1205 #ifdef USE_DNSTAP 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) 1233 #endif 1234 #ifdef USE_DNSCRYPT 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) 1249 #endif 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) 1298 #ifdef USE_IPSECMOD 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) 1305 #endif 1306 #ifdef USE_CACHEDB 1307 else O_STR(opt, "backend", cachedb_backend) 1308 else O_STR(opt, "secret-seed", cachedb_secret) 1309 #ifdef USE_REDIS 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 */ 1318 #ifdef USE_IPSET 1319 else O_STR(opt, "name-v4", ipset_name_v4) 1320 else O_STR(opt, "name-v6", ipset_name_v6) 1321 #endif 1322 /* not here: 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 1329 */ 1330 else return 0; 1331 return 1; 1332 } 1333 1334 /** initialize the global cfg_parser object */ 1335 static void 1336 create_cfg_parser(struct config_file* cfg, char* filename, const char* chroot) 1337 { 1338 static struct config_parser_state st; 1339 cfg_parser = &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; 1346 init_cfg_parse(); 1347 } 1348 1349 int 1350 config_read(struct config_file* cfg, const char* filename, const char* chroot) 1351 { 1352 FILE *in; 1353 char *fname = (char*)filename; 1354 #ifdef HAVE_GLOB 1355 glob_t g; 1356 size_t i; 1357 int r, flags; 1358 #endif 1359 if(!fname) 1360 return 1; 1361 1362 /* check for wildcards */ 1363 #ifdef HAVE_GLOB 1364 if(!(!strchr(fname, '*') && !strchr(fname, '?') && !strchr(fname, '[') && 1365 !strchr(fname, '{') && !strchr(fname, '~'))) { 1366 verbose(VERB_QUERY, "wildcard found, processing %s", fname); 1367 flags = 0 1368 #ifdef GLOB_ERR 1369 | GLOB_ERR 1370 #endif 1371 #ifdef GLOB_NOSORT 1372 | GLOB_NOSORT 1373 #endif 1374 #ifdef GLOB_BRACE 1375 | GLOB_BRACE 1376 #endif 1377 #ifdef GLOB_TILDE 1378 | GLOB_TILDE 1379 #endif 1380 ; 1381 memset(&g, 0, sizeof(g)); 1382 r = glob(fname, flags, NULL, &g); 1383 if(r) { 1384 /* some error */ 1385 globfree(&g); 1386 if(r == GLOB_NOMATCH) { 1387 verbose(VERB_QUERY, "include: " 1388 "no matches for %s", fname); 1389 return 1; 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)); 1396 } else { 1397 log_err("wildcard include: %s: expansion " 1398 "failed (%s)", fname, strerror(errno)); 1399 } 1400 /* ignore globs that yield no files */ 1401 return 1; 1402 } 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]); 1408 globfree(&g); 1409 return 0; 1410 } 1411 } 1412 globfree(&g); 1413 return 1; 1414 } 1415 #endif /* HAVE_GLOB */ 1416 1417 in = fopen(fname, "r"); 1418 if(!in) { 1419 log_err("Could not open %s: %s", fname, strerror(errno)); 1420 return 0; 1421 } 1422 create_cfg_parser(cfg, fname, chroot); 1423 ub_c_in = in; 1424 ub_c_parse(); 1425 fclose(in); 1426 1427 if(!cfg->dnscrypt) cfg->dnscrypt_port = 0; 1428 1429 if(cfg_parser->errors != 0) { 1430 fprintf(stderr, "read %s failed: %d errors in configuration file\n", 1431 fname, cfg_parser->errors); 1432 errno=EINVAL; 1433 return 0; 1434 } 1435 1436 return 1; 1437 } 1438 1439 struct config_stub* cfg_stub_find(struct config_stub*** pp, const char* nm) 1440 { 1441 struct config_stub* p = *(*pp); 1442 while(p) { 1443 if(strcmp(p->name, nm) == 0) 1444 return p; 1445 (*pp) = &p->next; 1446 p = p->next; 1447 } 1448 return NULL; 1449 } 1450 1451 void 1452 config_delstrlist(struct config_strlist* p) 1453 { 1454 struct config_strlist *np; 1455 while(p) { 1456 np = p->next; 1457 free(p->str); 1458 free(p); 1459 p = np; 1460 } 1461 } 1462 1463 void 1464 config_deldblstrlist(struct config_str2list* p) 1465 { 1466 struct config_str2list *np; 1467 while(p) { 1468 np = p->next; 1469 free(p->str); 1470 free(p->str2); 1471 free(p); 1472 p = np; 1473 } 1474 } 1475 1476 void 1477 config_deltrplstrlist(struct config_str3list* p) 1478 { 1479 struct config_str3list *np; 1480 while(p) { 1481 np = p->next; 1482 free(p->str); 1483 free(p->str2); 1484 free(p->str3); 1485 free(p); 1486 p = np; 1487 } 1488 } 1489 1490 void 1491 config_delauth(struct config_auth* p) 1492 { 1493 if(!p) return; 1494 free(p->name); 1495 config_delstrlist(p->masters); 1496 config_delstrlist(p->urls); 1497 config_delstrlist(p->allow_notify); 1498 free(p->zonefile); 1499 free(p->rpz_taglist); 1500 free(p->rpz_action_override); 1501 free(p->rpz_cname); 1502 free(p->rpz_log_name); 1503 free(p); 1504 } 1505 1506 void 1507 config_delauths(struct config_auth* p) 1508 { 1509 struct config_auth* np; 1510 while(p) { 1511 np = p->next; 1512 config_delauth(p); 1513 p = np; 1514 } 1515 } 1516 1517 void 1518 config_delstub(struct config_stub* p) 1519 { 1520 if(!p) return; 1521 free(p->name); 1522 config_delstrlist(p->hosts); 1523 config_delstrlist(p->addrs); 1524 free(p); 1525 } 1526 1527 void 1528 config_delstubs(struct config_stub* p) 1529 { 1530 struct config_stub* np; 1531 while(p) { 1532 np = p->next; 1533 config_delstub(p); 1534 p = np; 1535 } 1536 } 1537 1538 void 1539 config_delview(struct config_view* p) 1540 { 1541 if(!p) return; 1542 free(p->name); 1543 config_deldblstrlist(p->local_zones); 1544 config_delstrlist(p->local_zones_nodefault); 1545 #ifdef USE_IPSET 1546 config_delstrlist(p->local_zones_ipset); 1547 #endif 1548 config_delstrlist(p->local_data); 1549 free(p); 1550 } 1551 1552 void 1553 config_delviews(struct config_view* p) 1554 { 1555 struct config_view* np; 1556 while(p) { 1557 np = p->next; 1558 config_delview(p); 1559 p = np; 1560 } 1561 } 1562 1563 void 1564 config_del_strarray(char** array, int num) 1565 { 1566 int i; 1567 if(!array) 1568 return; 1569 for(i=0; i<num; i++) { 1570 free(array[i]); 1571 } 1572 free(array); 1573 } 1574 1575 void 1576 config_del_strbytelist(struct config_strbytelist* p) 1577 { 1578 struct config_strbytelist* np; 1579 while(p) { 1580 np = p->next; 1581 free(p->str); 1582 free(p->str2); 1583 free(p); 1584 p = np; 1585 } 1586 } 1587 1588 void 1589 config_delete(struct config_file* cfg) 1590 { 1591 if(!cfg) return; 1592 free(cfg->username); 1593 free(cfg->chrootdir); 1594 free(cfg->directory); 1595 free(cfg->logfile); 1596 free(cfg->pidfile); 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); 1610 } 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); 1622 #endif 1623 free(cfg->identity); 1624 free(cfg->version); 1625 free(cfg->http_user_agent); 1626 free(cfg->nsid_cfg_str); 1627 free(cfg->nsid); 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); 1643 #ifdef USE_IPSET 1644 config_delstrlist(cfg->local_zones_ipset); 1645 #endif 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); 1682 #ifdef USE_IPSECMOD 1683 free(cfg->ipsecmod_hook); 1684 config_delstrlist(cfg->ipsecmod_whitelist); 1685 #endif 1686 #ifdef USE_CACHEDB 1687 free(cfg->cachedb_backend); 1688 free(cfg->cachedb_secret); 1689 #ifdef USE_REDIS 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 */ 1695 #ifdef USE_IPSET 1696 free(cfg->ipset_name_v4); 1697 free(cfg->ipset_name_v6); 1698 #endif 1699 free(cfg); 1700 } 1701 1702 static void 1703 init_cookie_secret(uint8_t* cookie_secret, size_t cookie_secret_len) 1704 { 1705 struct ub_randstate *rand = ub_initstate(NULL); 1706 1707 if (!rand) 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--; 1712 } 1713 ub_randfree(rand); 1714 } 1715 1716 static void 1717 init_outgoing_availports(int* a, int num) 1718 { 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 */ 1723 1724 int i; 1725 /* do not use <1024, that could be trouble with the system, privs */ 1726 for(i=1024; i<num; i++) { 1727 a[i] = i; 1728 } 1729 /* create empty spot at 49152 to keep ephemeral ports available 1730 * to other programs */ 1731 for(i=49152; i<49152+256; i++) 1732 a[i] = 0; 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; 1737 } 1738 } 1739 1740 int 1741 cfg_mark_ports(const char* str, int allow, int* avail, int num) 1742 { 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 " 1747 "options"); 1748 #endif 1749 if(!mid) { 1750 int port = atoi(str); 1751 if(port == 0 && strcmp(str, "0") != 0) { 1752 log_err("cannot parse port number '%s'", str); 1753 return 0; 1754 } 1755 if(port < num) 1756 avail[port] = (allow?port:0); 1757 } else { 1758 int i, low, high = atoi(mid+1); 1759 char buf[16]; 1760 if(high == 0 && strcmp(mid+1, "0") != 0) { 1761 log_err("cannot parse port number '%s'", mid+1); 1762 return 0; 1763 } 1764 if( (int)(mid-str)+1 >= (int)sizeof(buf) ) { 1765 log_err("cannot parse port number '%s'", str); 1766 return 0; 1767 } 1768 if(mid > str) 1769 memcpy(buf, str, (size_t)(mid-str)); 1770 buf[mid-str] = 0; 1771 low = atoi(buf); 1772 if(low == 0 && strcmp(buf, "0") != 0) { 1773 log_err("cannot parse port number '%s'", buf); 1774 return 0; 1775 } 1776 for(i=low; i<=high; i++) { 1777 if(i < num) 1778 avail[i] = (allow?i:0); 1779 } 1780 return 1; 1781 } 1782 return 1; 1783 } 1784 1785 int 1786 cfg_scan_ports(int* avail, int num) 1787 { 1788 int i; 1789 int count = 0; 1790 for(i=0; i<num; i++) { 1791 if(avail[i]) 1792 count++; 1793 } 1794 return count; 1795 } 1796 1797 int cfg_condense_ports(struct config_file* cfg, int** avail) 1798 { 1799 int num = cfg_scan_ports(cfg->outgoing_avail_ports, 65536); 1800 int i, at = 0; 1801 *avail = NULL; 1802 if(num == 0) 1803 return 0; 1804 *avail = (int*)reallocarray(NULL, (size_t)num, sizeof(int)); 1805 if(!*avail) 1806 return 0; 1807 for(i=0; i<65536; i++) { 1808 if(cfg->outgoing_avail_ports[i]) 1809 (*avail)[at++] = cfg->outgoing_avail_ports[i]; 1810 } 1811 log_assert(at == num); 1812 return num; 1813 } 1814 1815 void cfg_apply_local_port_policy(struct config_file* cfg, int num) { 1816 (void)cfg; 1817 (void)num; 1818 #ifdef USE_LINUX_IP_LOCAL_PORT_RANGE 1819 { 1820 int i = 0; 1821 FILE* range_fd; 1822 if ((range_fd = fopen(LINUX_IP_LOCAL_PORT_RANGE_PATH, "r")) != NULL) { 1823 int min_port = 0; 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; 1828 } 1829 for(i=max_port+1; i<num; i++) { 1830 cfg->outgoing_avail_ports[i] = 0; 1831 } 1832 } else { 1833 log_err("unexpected port range in %s", 1834 LINUX_IP_LOCAL_PORT_RANGE_PATH); 1835 } 1836 fclose(range_fd); 1837 } else { 1838 log_err("failed to read from file: %s (%s)", 1839 LINUX_IP_LOCAL_PORT_RANGE_PATH, 1840 strerror(errno)); 1841 } 1842 } 1843 #endif 1844 } 1845 1846 /** print error with file and line number */ 1847 static void ub_c_error_va_list(const char *fmt, va_list args) 1848 { 1849 cfg_parser->errors++; 1850 fprintf(stderr, "%s:%d: error: ", cfg_parser->filename, 1851 cfg_parser->line); 1852 vfprintf(stderr, fmt, args); 1853 fprintf(stderr, "\n"); 1854 } 1855 1856 /** print error with file and line number */ 1857 void ub_c_error_msg(const char* fmt, ...) 1858 { 1859 va_list args; 1860 va_start(args, fmt); 1861 ub_c_error_va_list(fmt, args); 1862 va_end(args); 1863 } 1864 1865 void ub_c_error(const char *str) 1866 { 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); 1873 } 1874 1875 int ub_c_wrap(void) 1876 { 1877 return 1; 1878 } 1879 1880 int cfg_strlist_append(struct config_strlist_head* list, char* item) 1881 { 1882 struct config_strlist *s; 1883 if(!item || !list) { 1884 free(item); 1885 return 0; 1886 } 1887 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist)); 1888 if(!s) { 1889 free(item); 1890 return 0; 1891 } 1892 s->str = item; 1893 s->next = NULL; 1894 if(list->last) 1895 list->last->next = s; 1896 else 1897 list->first = s; 1898 list->last = s; 1899 return 1; 1900 } 1901 1902 int 1903 cfg_region_strlist_insert(struct regional* region, 1904 struct config_strlist** head, char* item) 1905 { 1906 struct config_strlist *s; 1907 if(!item || !head) 1908 return 0; 1909 s = (struct config_strlist*)regional_alloc_zero(region, 1910 sizeof(struct config_strlist)); 1911 if(!s) 1912 return 0; 1913 s->str = item; 1914 s->next = *head; 1915 *head = s; 1916 return 1; 1917 } 1918 1919 struct config_strlist* 1920 cfg_strlist_find(struct config_strlist* head, const char *item) 1921 { 1922 struct config_strlist *s = head; 1923 if(!head){ 1924 return NULL; 1925 } 1926 while(s) { 1927 if(strcmp(s->str, item) == 0) { 1928 return s; 1929 } 1930 s = s->next; 1931 } 1932 return NULL; 1933 } 1934 1935 int 1936 cfg_strlist_insert(struct config_strlist** head, char* item) 1937 { 1938 struct config_strlist *s; 1939 if(!item || !head) { 1940 free(item); 1941 return 0; 1942 } 1943 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist)); 1944 if(!s) { 1945 free(item); 1946 return 0; 1947 } 1948 s->str = item; 1949 s->next = *head; 1950 *head = s; 1951 return 1; 1952 } 1953 1954 int 1955 cfg_strlist_append_ex(struct config_strlist** head, char* item) 1956 { 1957 struct config_strlist *s; 1958 if(!item || !head) 1959 return 0; 1960 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist)); 1961 if(!s) 1962 return 0; 1963 s->str = item; 1964 s->next = NULL; 1965 1966 if (*head==NULL) { 1967 *head = s; 1968 } else { 1969 struct config_strlist *last = *head; 1970 while (last->next!=NULL) { 1971 last = last->next; 1972 } 1973 last->next = s; 1974 } 1975 1976 return 1; 1977 } 1978 1979 int 1980 cfg_str2list_insert(struct config_str2list** head, char* item, char* i2) 1981 { 1982 struct config_str2list *s; 1983 if(!item || !i2 || !head) { 1984 free(item); 1985 free(i2); 1986 return 0; 1987 } 1988 s = (struct config_str2list*)calloc(1, sizeof(struct config_str2list)); 1989 if(!s) { 1990 free(item); 1991 free(i2); 1992 return 0; 1993 } 1994 s->str = item; 1995 s->str2 = i2; 1996 s->next = *head; 1997 *head = s; 1998 return 1; 1999 } 2000 2001 int 2002 cfg_str3list_insert(struct config_str3list** head, char* item, char* i2, 2003 char* i3) 2004 { 2005 struct config_str3list *s; 2006 if(!item || !i2 || !i3 || !head) 2007 return 0; 2008 s = (struct config_str3list*)calloc(1, sizeof(struct config_str3list)); 2009 if(!s) 2010 return 0; 2011 s->str = item; 2012 s->str2 = i2; 2013 s->str3 = i3; 2014 s->next = *head; 2015 *head = s; 2016 return 1; 2017 } 2018 2019 int 2020 cfg_strbytelist_insert(struct config_strbytelist** head, char* item, 2021 uint8_t* i2, size_t i2len) 2022 { 2023 struct config_strbytelist* s; 2024 if(!item || !i2 || !head) 2025 return 0; 2026 s = (struct config_strbytelist*)calloc(1, sizeof(*s)); 2027 if(!s) 2028 return 0; 2029 s->str = item; 2030 s->str2 = i2; 2031 s->str2len = i2len; 2032 s->next = *head; 2033 *head = s; 2034 return 1; 2035 } 2036 2037 time_t 2038 cfg_convert_timeval(const char* str) 2039 { 2040 time_t t; 2041 struct tm tm; 2042 memset(&tm, 0, sizeof(tm)); 2043 if(strlen(str) < 14) 2044 return 0; 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) 2047 return 0; 2048 tm.tm_year -= 1900; 2049 tm.tm_mon--; 2050 /* Check values */ 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); 2059 return t; 2060 } 2061 2062 int 2063 cfg_count_numbers(const char* s) 2064 { 2065 /* format ::= (sp num)+ sp */ 2066 /* num ::= [-](0-9)+ */ 2067 /* sp ::= (space|tab)* */ 2068 int num = 0; 2069 while(*s) { 2070 while(*s && isspace((unsigned char)*s)) 2071 s++; 2072 if(!*s) /* end of string */ 2073 break; 2074 if(*s == '-') 2075 s++; 2076 if(!*s) /* only - not allowed */ 2077 return 0; 2078 if(!isdigit((unsigned char)*s)) /* bad character */ 2079 return 0; 2080 while(*s && isdigit((unsigned char)*s)) 2081 s++; 2082 num++; 2083 } 2084 return num; 2085 } 2086 2087 /** all digit number */ 2088 static int isalldigit(const char* str, size_t l) 2089 { 2090 size_t i; 2091 for(i=0; i<l; i++) 2092 if(!isdigit((unsigned char)str[i])) 2093 return 0; 2094 return 1; 2095 } 2096 2097 int 2098 cfg_parse_memsize(const char* str, size_t* res) 2099 { 2100 size_t len; 2101 size_t mult = 1; 2102 if(!str || (len=(size_t)strlen(str)) == 0) { 2103 log_err("not a size: '%s'", str); 2104 return 0; 2105 } 2106 if(isalldigit(str, len)) { 2107 *res = (size_t)atol(str); 2108 return 1; 2109 } 2110 /* check appended num */ 2111 while(len>0 && str[len-1]==' ') 2112 len--; 2113 if(len > 1 && str[len-1] == 'b') 2114 len--; 2115 else if(len > 1 && str[len-1] == 'B') 2116 len--; 2117 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') 2121 mult = 1024*1024; 2122 else if(len > 1 && tolower((unsigned char)str[len-1]) == 'k') 2123 mult = 1024; 2124 else if(len > 0 && isdigit((unsigned char)str[len-1])) 2125 mult = 1; 2126 else { 2127 log_err("unknown size specifier: '%s'", str); 2128 return 0; 2129 } 2130 while(len>1 && str[len-2]==' ') 2131 len--; 2132 2133 if(!isalldigit(str, len-1)) { 2134 log_err("unknown size specifier: '%s'", str); 2135 return 0; 2136 } 2137 *res = ((size_t)atol(str)) * mult; 2138 return 1; 2139 } 2140 2141 int 2142 find_tag_id(struct config_file* cfg, const char* tag) 2143 { 2144 int i; 2145 for(i=0; i<cfg->num_tags; i++) { 2146 if(strcmp(cfg->tagname[i], tag) == 0) 2147 return i; 2148 } 2149 return -1; 2150 } 2151 2152 int 2153 config_add_tag(struct config_file* cfg, const char* tag) 2154 { 2155 char** newarray; 2156 char* newtag; 2157 if(find_tag_id(cfg, tag) != -1) 2158 return 1; /* nothing to do */ 2159 newarray = (char**)malloc(sizeof(char*)*(cfg->num_tags+1)); 2160 if(!newarray) 2161 return 0; 2162 newtag = strdup(tag); 2163 if(!newtag) { 2164 free(newarray); 2165 return 0; 2166 } 2167 if(cfg->tagname) { 2168 memcpy(newarray, cfg->tagname, sizeof(char*)*cfg->num_tags); 2169 free(cfg->tagname); 2170 } 2171 newarray[cfg->num_tags++] = newtag; 2172 cfg->tagname = newarray; 2173 return 1; 2174 } 2175 2176 /** set a bit in a bit array */ 2177 static void 2178 cfg_set_bit(uint8_t* bitlist, size_t len, int id) 2179 { 2180 int pos = id/8; 2181 log_assert((size_t)pos < len); 2182 (void)len; 2183 bitlist[pos] |= 1<<(id%8); 2184 } 2185 2186 uint8_t* config_parse_taglist(struct config_file* cfg, char* str, 2187 size_t* listlen) 2188 { 2189 uint8_t* taglist = NULL; 2190 size_t len = 0; 2191 char* p, *s; 2192 2193 /* allocate */ 2194 if(cfg->num_tags == 0) { 2195 log_err("parse taglist, but no tags defined"); 2196 return 0; 2197 } 2198 len = (size_t)(cfg->num_tags+7)/8; 2199 taglist = calloc(1, len); 2200 if(!taglist) { 2201 log_err("out of memory"); 2202 return 0; 2203 } 2204 2205 /* parse */ 2206 s = str; 2207 while((p=strsep(&s, " \t\n")) != NULL) { 2208 if(*p) { 2209 int id = find_tag_id(cfg, p); 2210 /* set this bit in the bitlist */ 2211 if(id == -1) { 2212 log_err("unknown tag: %s", p); 2213 free(taglist); 2214 return 0; 2215 } 2216 cfg_set_bit(taglist, len, id); 2217 } 2218 } 2219 2220 *listlen = len; 2221 return taglist; 2222 } 2223 2224 uint8_t* cfg_parse_nsid(const char* str, uint16_t* nsid_len) 2225 { 2226 uint8_t* nsid = NULL; 2227 2228 if (strncasecmp(str, "ascii_", 6) == 0) { 2229 if ((nsid = (uint8_t *)strdup(str + 6))) 2230 *nsid_len = strlen(str + 6); 2231 2232 } else if (strlen(str) % 2) { 2233 ; /* hex string has even number of characters */ 2234 } 2235 2236 else if (*str && (nsid = calloc(1, strlen(str) / 2))) { 2237 const char *ch; 2238 uint8_t *dp; 2239 2240 for ( ch = str, dp = nsid 2241 ; isxdigit(ch[0]) && isxdigit(ch[1]) 2242 ; ch += 2, dp++) { 2243 *dp = (uint8_t)sldns_hexdigit_to_int(ch[0]) * 16; 2244 *dp += (uint8_t)sldns_hexdigit_to_int(ch[1]); 2245 } 2246 if (*ch) { 2247 free(nsid); 2248 nsid = NULL; 2249 } else 2250 *nsid_len = strlen(str) / 2; 2251 } 2252 return nsid; 2253 } 2254 2255 2256 char* config_taglist2str(struct config_file* cfg, uint8_t* taglist, 2257 size_t taglen) 2258 { 2259 char buf[10240]; 2260 size_t i, j, len = 0; 2261 buf[0] = 0; 2262 for(i=0; i<taglen; i++) { 2263 if(taglist[i] == 0) 2264 continue; 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); 2271 } 2272 } 2273 } 2274 return strdup(buf); 2275 } 2276 2277 int taglist_intersect(uint8_t* list1, size_t list1len, const uint8_t* list2, 2278 size_t list2len) 2279 { 2280 size_t i; 2281 if(!list1 || !list2) 2282 return 0; 2283 for(i=0; i<list1len && i<list2len; i++) { 2284 if((list1[i] & list2[i]) != 0) 2285 return 1; 2286 } 2287 return 0; 2288 } 2289 2290 void 2291 config_apply(struct config_file* config) 2292 { 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; 2314 } 2315 2316 void config_lookup_uid(struct config_file* cfg) 2317 { 2318 #ifdef HAVE_GETPWNAM 2319 /* translate username into uid and gid */ 2320 if(cfg->username && cfg->username[0]) { 2321 struct passwd *pwd; 2322 if((pwd = getpwnam(cfg->username)) != NULL) { 2323 cfg_uid = pwd->pw_uid; 2324 cfg_gid = pwd->pw_gid; 2325 } 2326 } 2327 #else 2328 (void)cfg; 2329 #endif 2330 } 2331 2332 /** 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. 2340 */ 2341 static size_t 2342 strlen_after_chroot(const char* fname, struct config_file* cfg, int use_chdir) 2343 { 2344 size_t len = 0; 2345 int slashit = 0; 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); 2350 } 2351 /* chroot */ 2352 if(cfg->chrootdir && cfg->chrootdir[0]) { 2353 /* start with chrootdir */ 2354 len += strlen(cfg->chrootdir); 2355 slashit = 1; 2356 } 2357 /* chdir */ 2358 #ifdef UB_ON_WINDOWS 2359 if(fname[0] != 0 && fname[1] == ':') { 2360 /* full path, no chdir */ 2361 } else 2362 #endif 2363 if(fname[0] == '/' || !use_chdir) { 2364 /* full path, no chdir */ 2365 } else if(cfg->directory && cfg->directory[0]) { 2366 /* prepend chdir */ 2367 if(slashit && cfg->directory[0] != '/') 2368 len++; 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); 2374 slashit = 1; 2375 } 2376 /* fname */ 2377 if(slashit && fname[0] != '/') 2378 len++; 2379 len += strlen(fname); 2380 return len; 2381 } 2382 2383 char* 2384 fname_after_chroot(const char* fname, struct config_file* cfg, int use_chdir) 2385 { 2386 size_t len = strlen_after_chroot(fname, cfg, use_chdir)+1; 2387 int slashit = 0; 2388 char* buf = (char*)malloc(len); 2389 if(!buf) 2390 return NULL; 2391 buf[0] = 0; 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); 2397 buf[len-1] = 0; 2398 return buf; 2399 } 2400 /* chroot */ 2401 if(cfg->chrootdir && cfg->chrootdir[0]) { 2402 /* start with chrootdir */ 2403 (void)strlcpy(buf, cfg->chrootdir, len); 2404 slashit = 1; 2405 } 2406 #ifdef UB_ON_WINDOWS 2407 if(fname[0] != 0 && fname[1] == ':') { 2408 /* full path, no chdir */ 2409 } else 2410 #endif 2411 /* chdir */ 2412 if(fname[0] == '/' || !use_chdir) { 2413 /* full path, no chdir */ 2414 } else if(cfg->directory && cfg->directory[0]) { 2415 /* prepend chdir */ 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), 2423 len); 2424 else (void)strlcat(buf, cfg->directory, len); 2425 slashit = 1; 2426 } 2427 /* fname */ 2428 if(slashit && fname[0] != '/') 2429 (void)strlcat(buf, "/", len); 2430 (void)strlcat(buf, fname, len); 2431 buf[len-1] = 0; 2432 return buf; 2433 } 2434 2435 /** return next space character in string */ 2436 static char* next_space_pos(const char* str) 2437 { 2438 char* sp = strchr(str, ' '); 2439 char* tab = strchr(str, '\t'); 2440 if(!tab && !sp) 2441 return NULL; 2442 if(!sp) return tab; 2443 if(!tab) return sp; 2444 return (sp<tab)?sp:tab; 2445 } 2446 2447 /** return last space character in string */ 2448 static char* last_space_pos(const char* str) 2449 { 2450 char* sp = strrchr(str, ' '); 2451 char* tab = strrchr(str, '\t'); 2452 if(!tab && !sp) 2453 return NULL; 2454 if(!sp) return tab; 2455 if(!tab) return sp; 2456 return (sp>tab)?sp:tab; 2457 } 2458 2459 int 2460 cfg_parse_local_zone(struct config_file* cfg, const char* val) 2461 { 2462 const char *type, *name_end, *name; 2463 char buf[256]; 2464 2465 /* parse it as: [zone_name] [between stuff] [zone_type] */ 2466 name = val; 2467 while(*name && isspace((unsigned char)*name)) 2468 name++; 2469 if(!*name) { 2470 log_err("syntax error: too short: %s", val); 2471 return 0; 2472 } 2473 name_end = next_space_pos(name); 2474 if(!name_end || !*name_end) { 2475 log_err("syntax error: expected zone type: %s", val); 2476 return 0; 2477 } 2478 if (name_end - name > 255) { 2479 log_err("syntax error: bad zone name: %s", val); 2480 return 0; 2481 } 2482 (void)strlcpy(buf, name, sizeof(buf)); 2483 buf[name_end-name] = '\0'; 2484 2485 type = last_space_pos(name_end); 2486 while(type && *type && isspace((unsigned char)*type)) 2487 type++; 2488 if(!type || !*type) { 2489 log_err("syntax error: expected zone type: %s", val); 2490 return 0; 2491 } 2492 2493 if(strcmp(type, "nodefault")==0) { 2494 return cfg_strlist_insert(&cfg->local_zones_nodefault, 2495 strdup(name)); 2496 #ifdef USE_IPSET 2497 } else if(strcmp(type, "ipset")==0) { 2498 return cfg_strlist_insert(&cfg->local_zones_ipset, 2499 strdup(name)); 2500 #endif 2501 } else { 2502 return cfg_str2list_insert(&cfg->local_zones, strdup(buf), 2503 strdup(type)); 2504 } 2505 } 2506 2507 char* cfg_ptr_reverse(char* str) 2508 { 2509 char* ip, *ip_end; 2510 char* name; 2511 char* result; 2512 char buf[1024]; 2513 struct sockaddr_storage addr; 2514 socklen_t addrlen; 2515 2516 /* parse it as: [IP] [between stuff] [name] */ 2517 ip = str; 2518 while(*ip && isspace((unsigned char)*ip)) 2519 ip++; 2520 if(!*ip) { 2521 log_err("syntax error: too short: %s", str); 2522 return NULL; 2523 } 2524 ip_end = next_space_pos(ip); 2525 if(!ip_end || !*ip_end) { 2526 log_err("syntax error: expected name: %s", str); 2527 return NULL; 2528 } 2529 2530 name = last_space_pos(ip_end); 2531 if(!name || !*name) { 2532 log_err("syntax error: expected name: %s", str); 2533 return NULL; 2534 } 2535 2536 sscanf(ip, "%100s", buf); 2537 buf[sizeof(buf)-1]=0; 2538 2539 if(!ipstrtoaddr(buf, UNBOUND_DNS_PORT, &addr, &addrlen)) { 2540 log_err("syntax error: cannot parse address: %s", str); 2541 return NULL; 2542 } 2543 2544 /* reverse IPv4: 2545 * ddd.ddd.ddd.ddd.in-addr-arpa. 2546 * IPv6: (h.){32}.ip6.arpa. */ 2547 2548 if(addr_is_ip6(&addr, addrlen)) { 2549 uint8_t ad[16]; 2550 const char* hex = "0123456789abcdef"; 2551 char *p = buf; 2552 int i; 2553 memmove(ad, &((struct sockaddr_in6*)&addr)->sin6_addr, 2554 sizeof(ad)); 2555 for(i=15; i>=0; i--) { 2556 uint8_t b = ad[i]; 2557 *p++ = hex[ (b&0x0f) ]; 2558 *p++ = '.'; 2559 *p++ = hex[ (b&0xf0) >> 4 ]; 2560 *p++ = '.'; 2561 } 2562 snprintf(buf+16*4, sizeof(buf)-16*4, "ip6.arpa. "); 2563 } else { 2564 uint8_t ad[4]; 2565 memmove(ad, &((struct sockaddr_in*)&addr)->sin_addr, 2566 sizeof(ad)); 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]); 2570 } 2571 2572 /* printed the reverse address, now the between goop and name on end */ 2573 while(*ip_end && isspace((unsigned char)*ip_end)) 2574 ip_end++; 2575 if(name>ip_end) { 2576 snprintf(buf+strlen(buf), sizeof(buf)-strlen(buf), "%.*s", 2577 (int)(name-ip_end), ip_end); 2578 } 2579 snprintf(buf+strlen(buf), sizeof(buf)-strlen(buf), " PTR %s", name); 2580 2581 result = strdup(buf); 2582 if(!result) { 2583 log_err("out of memory parsing %s", str); 2584 return NULL; 2585 } 2586 return result; 2587 } 2588 2589 #ifdef UB_ON_WINDOWS 2590 char* 2591 w_lookup_reg_str(const char* key, const char* name) 2592 { 2593 HKEY hk = NULL; 2594 DWORD type = 0; 2595 BYTE buf[1024]; 2596 DWORD len = (DWORD)sizeof(buf); 2597 LONG ret; 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"); 2604 return NULL; 2605 } 2606 ret = RegQueryValueEx(hk, (LPCTSTR)name, 0, &type, buf, &len); 2607 if(RegCloseKey(hk)) 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"); 2613 return NULL; 2614 } 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"); 2620 } 2621 return result; 2622 } 2623 2624 void w_config_adjust_directory(struct config_file* cfg) 2625 { 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 */ 2631 dirbuf[0] = 0; 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"); 2637 if(dirbuf[0]) { 2638 /* adjust directory for later lookups to work*/ 2639 free(cfg->directory); 2640 cfg->directory = memdup(dirbuf, strlen(dirbuf)+1); 2641 } 2642 } 2643 } 2644 } 2645 #endif /* UB_ON_WINDOWS */ 2646 2647 int options_remote_is_address(struct config_file* cfg) 2648 { 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] != '/'); 2654 } 2655 2656 /** see if interface is https, its port number == the https port number */ 2657 int 2658 if_is_https(const char* ifname, const char* port, int https_port) 2659 { 2660 char* p = strchr(ifname, '@'); 2661 if(!p && atoi(port) == https_port) 2662 return 1; 2663 if(p && atoi(p+1) == https_port) 2664 return 1; 2665 return 0; 2666 } 2667 2668 /** see if config contains https turned on */ 2669 int cfg_has_https(struct config_file* cfg) 2670 { 2671 int i; 2672 char portbuf[32]; 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)) 2676 return 1; 2677 } 2678 return 0; 2679 } 2680 2681 /** see if interface is PROXYv2, its port number == the proxy port number */ 2682 int 2683 if_is_pp2(const char* ifname, const char* port, 2684 struct config_strlist* proxy_protocol_port) 2685 { 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)) 2690 return 1; 2691 if(!p && atoi(port) == atoi(s->str)) 2692 return 1; 2693 } 2694 return 0; 2695 } 2696 2697 /** see if interface is DNSCRYPT, its port number == the dnscrypt port number */ 2698 int 2699 if_is_dnscrypt(const char* ifname, const char* port, int dnscrypt_port) 2700 { 2701 #ifdef USE_DNSCRYPT 2702 return ((strchr(ifname, '@') && 2703 atoi(strchr(ifname, '@')+1) == dnscrypt_port) || 2704 (!strchr(ifname, '@') && atoi(port) == dnscrypt_port)); 2705 #else 2706 (void)ifname; 2707 (void)port; 2708 (void)dnscrypt_port; 2709 return 0; 2710 #endif 2711 } 2712