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 cfg->log_destaddr = 0; 146 #ifndef USE_WINSOCK 147 # ifdef USE_MINI_EVENT 148 /* select max 1024 sockets */ 149 cfg->outgoing_num_ports = 960; 150 cfg->num_queries_per_thread = 512; 151 # else 152 /* libevent can use many sockets */ 153 cfg->outgoing_num_ports = 4096; 154 cfg->num_queries_per_thread = 1024; 155 # endif 156 cfg->outgoing_num_tcp = 10; 157 cfg->incoming_num_tcp = 10; 158 #else 159 cfg->outgoing_num_ports = 48; /* windows is limited in num fds */ 160 cfg->num_queries_per_thread = 24; 161 cfg->outgoing_num_tcp = 2; /* leaves 64-52=12 for: 4if,1stop,thread4 */ 162 cfg->incoming_num_tcp = 2; 163 #endif 164 cfg->stream_wait_size = 4 * 1024 * 1024; 165 cfg->edns_buffer_size = 1232; /* from DNS flagday recommendation */ 166 cfg->msg_buffer_size = 65552; /* 64 k + a small margin */ 167 cfg->msg_cache_size = 4 * 1024 * 1024; 168 cfg->msg_cache_slabs = 4; 169 cfg->jostle_time = 200; 170 cfg->rrset_cache_size = 4 * 1024 * 1024; 171 cfg->rrset_cache_slabs = 4; 172 cfg->host_ttl = 900; 173 cfg->bogus_ttl = 60; 174 cfg->min_ttl = 0; 175 cfg->max_ttl = 3600 * 24; 176 cfg->max_negative_ttl = 3600; 177 cfg->prefetch = 0; 178 cfg->prefetch_key = 0; 179 cfg->deny_any = 0; 180 cfg->infra_cache_slabs = 4; 181 cfg->infra_cache_numhosts = 10000; 182 cfg->infra_cache_min_rtt = 50; 183 cfg->infra_cache_max_rtt = 120000; 184 cfg->infra_keep_probing = 0; 185 cfg->delay_close = 0; 186 cfg->udp_connect = 1; 187 if(!(cfg->outgoing_avail_ports = (int*)calloc(65536, sizeof(int)))) 188 goto error_exit; 189 init_outgoing_availports(cfg->outgoing_avail_ports, 65536); 190 if(!(cfg->username = strdup(UB_USERNAME))) goto error_exit; 191 #ifdef HAVE_CHROOT 192 if(!(cfg->chrootdir = strdup(CHROOT_DIR))) goto error_exit; 193 #endif 194 if(!(cfg->directory = strdup(RUN_DIR))) goto error_exit; 195 if(!(cfg->logfile = strdup(""))) goto error_exit; 196 if(!(cfg->pidfile = strdup(PIDFILE))) goto error_exit; 197 if(!(cfg->target_fetch_policy = strdup("3 2 1 0 0"))) goto error_exit; 198 cfg->fast_server_permil = 0; 199 cfg->fast_server_num = 3; 200 cfg->donotqueryaddrs = NULL; 201 cfg->donotquery_localhost = 1; 202 cfg->root_hints = NULL; 203 cfg->use_systemd = 0; 204 cfg->do_daemonize = 1; 205 cfg->if_automatic = 0; 206 cfg->if_automatic_ports = NULL; 207 cfg->so_rcvbuf = 0; 208 cfg->so_sndbuf = 0; 209 cfg->so_reuseport = REUSEPORT_DEFAULT; 210 cfg->ip_transparent = 0; 211 cfg->ip_freebind = 0; 212 cfg->ip_dscp = 0; 213 cfg->num_ifs = 0; 214 cfg->ifs = NULL; 215 cfg->num_out_ifs = 0; 216 cfg->out_ifs = NULL; 217 cfg->stubs = NULL; 218 cfg->forwards = NULL; 219 cfg->auths = NULL; 220 #ifdef CLIENT_SUBNET 221 cfg->client_subnet = NULL; 222 cfg->client_subnet_zone = NULL; 223 cfg->client_subnet_opcode = LDNS_EDNS_CLIENT_SUBNET; 224 cfg->client_subnet_always_forward = 0; 225 cfg->max_client_subnet_ipv4 = 24; 226 cfg->max_client_subnet_ipv6 = 56; 227 cfg->min_client_subnet_ipv4 = 0; 228 cfg->min_client_subnet_ipv6 = 0; 229 cfg->max_ecs_tree_size_ipv4 = 100; 230 cfg->max_ecs_tree_size_ipv6 = 100; 231 #endif 232 cfg->views = NULL; 233 cfg->acls = NULL; 234 cfg->tcp_connection_limits = NULL; 235 cfg->harden_short_bufsize = 1; 236 cfg->harden_large_queries = 0; 237 cfg->harden_glue = 1; 238 cfg->harden_dnssec_stripped = 1; 239 cfg->harden_below_nxdomain = 1; 240 cfg->harden_referral_path = 0; 241 cfg->harden_algo_downgrade = 0; 242 cfg->harden_unknown_additional = 0; 243 cfg->use_caps_bits_for_id = 0; 244 cfg->caps_whitelist = NULL; 245 cfg->private_address = NULL; 246 cfg->private_domain = NULL; 247 cfg->unwanted_threshold = 0; 248 cfg->hide_identity = 0; 249 cfg->hide_version = 0; 250 cfg->hide_trustanchor = 0; 251 cfg->hide_http_user_agent = 0; 252 cfg->identity = NULL; 253 cfg->version = NULL; 254 cfg->http_user_agent = NULL; 255 cfg->nsid_cfg_str = NULL; 256 cfg->nsid = NULL; 257 cfg->nsid_len = 0; 258 cfg->auto_trust_anchor_file_list = NULL; 259 cfg->trust_anchor_file_list = NULL; 260 cfg->trust_anchor_list = NULL; 261 cfg->trusted_keys_file_list = NULL; 262 cfg->trust_anchor_signaling = 1; 263 cfg->root_key_sentinel = 1; 264 cfg->domain_insecure = NULL; 265 cfg->val_date_override = 0; 266 cfg->val_sig_skew_min = 3600; /* at least daylight savings trouble */ 267 cfg->val_sig_skew_max = 86400; /* at most timezone settings trouble */ 268 cfg->val_max_restart = 5; 269 cfg->val_clean_additional = 1; 270 cfg->val_log_level = 0; 271 cfg->val_log_squelch = 0; 272 cfg->val_permissive_mode = 0; 273 cfg->aggressive_nsec = 1; 274 cfg->ignore_cd = 0; 275 cfg->disable_edns_do = 0; 276 cfg->serve_expired = 0; 277 cfg->serve_expired_ttl = 0; 278 cfg->serve_expired_ttl_reset = 0; 279 cfg->serve_expired_reply_ttl = 30; 280 cfg->serve_expired_client_timeout = 0; 281 cfg->ede_serve_expired = 0; 282 cfg->serve_original_ttl = 0; 283 cfg->zonemd_permissive_mode = 0; 284 cfg->add_holddown = 30*24*3600; 285 cfg->del_holddown = 30*24*3600; 286 cfg->keep_missing = 366*24*3600; /* one year plus a little leeway */ 287 cfg->permit_small_holddown = 0; 288 cfg->key_cache_size = 4 * 1024 * 1024; 289 cfg->key_cache_slabs = 4; 290 cfg->neg_cache_size = 1 * 1024 * 1024; 291 cfg->local_zones = NULL; 292 cfg->local_zones_nodefault = NULL; 293 #ifdef USE_IPSET 294 cfg->local_zones_ipset = NULL; 295 #endif 296 cfg->local_zones_disable_default = 0; 297 cfg->local_data = NULL; 298 cfg->local_zone_overrides = NULL; 299 cfg->unblock_lan_zones = 0; 300 cfg->insecure_lan_zones = 0; 301 cfg->python_script = NULL; 302 cfg->dynlib_file = NULL; 303 cfg->remote_control_enable = 0; 304 cfg->control_ifs.first = NULL; 305 cfg->control_ifs.last = NULL; 306 cfg->control_port = UNBOUND_CONTROL_PORT; 307 cfg->control_use_cert = 1; 308 cfg->minimal_responses = 1; 309 cfg->rrset_roundrobin = 1; 310 cfg->unknown_server_time_limit = 376; 311 cfg->max_udp_size = 1232; /* value taken from edns_buffer_size */ 312 if(!(cfg->server_key_file = strdup(RUN_DIR"/unbound_server.key"))) 313 goto error_exit; 314 if(!(cfg->server_cert_file = strdup(RUN_DIR"/unbound_server.pem"))) 315 goto error_exit; 316 if(!(cfg->control_key_file = strdup(RUN_DIR"/unbound_control.key"))) 317 goto error_exit; 318 if(!(cfg->control_cert_file = strdup(RUN_DIR"/unbound_control.pem"))) 319 goto error_exit; 320 321 #ifdef CLIENT_SUBNET 322 if(!(cfg->module_conf = strdup("subnetcache validator iterator"))) goto error_exit; 323 #else 324 if(!(cfg->module_conf = strdup("validator iterator"))) goto error_exit; 325 #endif 326 if(!(cfg->val_nsec3_key_iterations = 327 strdup("1024 150 2048 150 4096 150"))) goto error_exit; 328 #if defined(DNSTAP_SOCKET_PATH) 329 if(!(cfg->dnstap_socket_path = strdup(DNSTAP_SOCKET_PATH))) 330 goto error_exit; 331 #endif 332 cfg->dnstap_bidirectional = 1; 333 cfg->dnstap_tls = 1; 334 cfg->disable_dnssec_lame_check = 0; 335 cfg->ip_ratelimit_cookie = 0; 336 cfg->ip_ratelimit = 0; 337 cfg->ratelimit = 0; 338 cfg->ip_ratelimit_slabs = 4; 339 cfg->ratelimit_slabs = 4; 340 cfg->ip_ratelimit_size = 4*1024*1024; 341 cfg->ratelimit_size = 4*1024*1024; 342 cfg->ratelimit_for_domain = NULL; 343 cfg->ratelimit_below_domain = NULL; 344 cfg->ip_ratelimit_factor = 10; 345 cfg->ratelimit_factor = 10; 346 cfg->ip_ratelimit_backoff = 0; 347 cfg->ratelimit_backoff = 0; 348 cfg->outbound_msg_retry = 5; 349 cfg->max_sent_count = 32; 350 cfg->max_query_restarts = 11; 351 cfg->qname_minimisation = 1; 352 cfg->qname_minimisation_strict = 0; 353 cfg->shm_enable = 0; 354 cfg->shm_key = 11777; 355 cfg->edns_client_strings = NULL; 356 cfg->edns_client_string_opcode = 65001; 357 cfg->dnscrypt = 0; 358 cfg->dnscrypt_port = 0; 359 cfg->dnscrypt_provider = NULL; 360 cfg->dnscrypt_provider_cert = NULL; 361 cfg->dnscrypt_provider_cert_rotated = NULL; 362 cfg->dnscrypt_secret_key = NULL; 363 cfg->dnscrypt_shared_secret_cache_size = 4*1024*1024; 364 cfg->dnscrypt_shared_secret_cache_slabs = 4; 365 cfg->dnscrypt_nonce_cache_size = 4*1024*1024; 366 cfg->dnscrypt_nonce_cache_slabs = 4; 367 cfg->pad_responses = 1; 368 cfg->pad_responses_block_size = 468; /* from RFC8467 */ 369 cfg->pad_queries = 1; 370 cfg->pad_queries_block_size = 128; /* from RFC8467 */ 371 #ifdef USE_IPSECMOD 372 cfg->ipsecmod_enabled = 1; 373 cfg->ipsecmod_ignore_bogus = 0; 374 cfg->ipsecmod_hook = NULL; 375 cfg->ipsecmod_max_ttl = 3600; 376 cfg->ipsecmod_whitelist = NULL; 377 cfg->ipsecmod_strict = 0; 378 #endif 379 cfg->do_answer_cookie = 0; 380 memset(cfg->cookie_secret, 0, sizeof(cfg->cookie_secret)); 381 cfg->cookie_secret_len = 16; 382 init_cookie_secret(cfg->cookie_secret, cfg->cookie_secret_len); 383 #ifdef USE_CACHEDB 384 if(!(cfg->cachedb_backend = strdup("testframe"))) goto error_exit; 385 if(!(cfg->cachedb_secret = strdup("default"))) goto error_exit; 386 cfg->cachedb_no_store = 0; 387 #ifdef USE_REDIS 388 if(!(cfg->redis_server_host = strdup("127.0.0.1"))) goto error_exit; 389 cfg->redis_server_path = NULL; 390 cfg->redis_server_password = NULL; 391 cfg->redis_timeout = 100; 392 cfg->redis_server_port = 6379; 393 cfg->redis_expire_records = 0; 394 cfg->redis_logical_db = 0; 395 #endif /* USE_REDIS */ 396 #endif /* USE_CACHEDB */ 397 #ifdef USE_IPSET 398 cfg->ipset_name_v4 = NULL; 399 cfg->ipset_name_v6 = NULL; 400 #endif 401 cfg->ede = 0; 402 return cfg; 403 error_exit: 404 config_delete(cfg); 405 return NULL; 406 } 407 408 struct config_file* config_create_forlib(void) 409 { 410 struct config_file* cfg = config_create(); 411 if(!cfg) return NULL; 412 /* modifications for library use, less verbose, less memory */ 413 free(cfg->chrootdir); 414 cfg->chrootdir = NULL; 415 cfg->verbosity = 0; 416 cfg->outgoing_num_ports = 16; /* in library use, this is 'reasonable' 417 and probably within the ulimit(maxfds) of the user */ 418 cfg->outgoing_num_tcp = 2; 419 cfg->msg_cache_size = 1024*1024; 420 cfg->msg_cache_slabs = 1; 421 cfg->rrset_cache_size = 1024*1024; 422 cfg->rrset_cache_slabs = 1; 423 cfg->infra_cache_slabs = 1; 424 cfg->use_syslog = 0; 425 cfg->key_cache_size = 1024*1024; 426 cfg->key_cache_slabs = 1; 427 cfg->neg_cache_size = 100 * 1024; 428 cfg->donotquery_localhost = 0; /* allow, so that you can ask a 429 forward nameserver running on localhost */ 430 cfg->val_log_level = 2; /* to fill why_bogus with */ 431 cfg->val_log_squelch = 1; 432 cfg->minimal_responses = 0; 433 cfg->harden_short_bufsize = 1; 434 return cfg; 435 } 436 437 /** check that the value passed is >= 0 */ 438 #define IS_NUMBER_OR_ZERO \ 439 if(atoi(val) == 0 && strcmp(val, "0") != 0) return 0 440 /** check that the value passed is > 0 */ 441 #define IS_NONZERO_NUMBER \ 442 if(atoi(val) == 0) return 0 443 /** check that the value passed is not 0 and a power of 2 */ 444 #define IS_POW2_NUMBER \ 445 if(atoi(val) == 0 || !is_pow2((size_t)atoi(val))) return 0 446 /** check that the value passed is yes or no */ 447 #define IS_YES_OR_NO \ 448 if(strcmp(val, "yes") != 0 && strcmp(val, "no") != 0) return 0 449 /** put integer_or_zero into variable */ 450 #define S_NUMBER_OR_ZERO(str, var) if(strcmp(opt, str) == 0) \ 451 { IS_NUMBER_OR_ZERO; cfg->var = atoi(val); } 452 /** put integer_nonzero into variable */ 453 #define S_NUMBER_NONZERO(str, var) if(strcmp(opt, str) == 0) \ 454 { IS_NONZERO_NUMBER; cfg->var = atoi(val); } 455 /** put integer_or_zero into unsigned */ 456 #define S_UNSIGNED_OR_ZERO(str, var) if(strcmp(opt, str) == 0) \ 457 { IS_NUMBER_OR_ZERO; cfg->var = (unsigned)atoi(val); } 458 /** put integer_or_zero into size_t */ 459 #define S_SIZET_OR_ZERO(str, var) if(strcmp(opt, str) == 0) \ 460 { IS_NUMBER_OR_ZERO; cfg->var = (size_t)atoi(val); } 461 /** put integer_nonzero into size_t */ 462 #define S_SIZET_NONZERO(str, var) if(strcmp(opt, str) == 0) \ 463 { IS_NONZERO_NUMBER; cfg->var = (size_t)atoi(val); } 464 /** put yesno into variable */ 465 #define S_YNO(str, var) if(strcmp(opt, str) == 0) \ 466 { IS_YES_OR_NO; cfg->var = (strcmp(val, "yes") == 0); } 467 /** put memsize into variable */ 468 #define S_MEMSIZE(str, var) if(strcmp(opt, str)==0) \ 469 { return cfg_parse_memsize(val, &cfg->var); } 470 /** put pow2 number into variable */ 471 #define S_POW2(str, var) if(strcmp(opt, str)==0) \ 472 { IS_POW2_NUMBER; cfg->var = (size_t)atoi(val); } 473 /** put string into variable */ 474 #define S_STR(str, var) if(strcmp(opt, str)==0) \ 475 { free(cfg->var); return (cfg->var = strdup(val)) != NULL; } 476 /** put string into strlist */ 477 #define S_STRLIST(str, var) if(strcmp(opt, str)==0) \ 478 { return cfg_strlist_insert(&cfg->var, strdup(val)); } 479 /** put string into strlist if not present yet*/ 480 #define S_STRLIST_UNIQ(str, var) if(strcmp(opt, str)==0) \ 481 { if(cfg_strlist_find(cfg->var, val)) { return 0;} \ 482 return cfg_strlist_insert(&cfg->var, strdup(val)); } 483 /** append string to strlist */ 484 #define S_STRLIST_APPEND(str, var) if(strcmp(opt, str)==0) \ 485 { return cfg_strlist_append(&cfg->var, strdup(val)); } 486 487 int config_set_option(struct config_file* cfg, const char* opt, 488 const char* val) 489 { 490 char buf[64]; 491 if(!opt) return 0; 492 if(opt[strlen(opt)-1] != ':' && strlen(opt)+2<sizeof(buf)) { 493 snprintf(buf, sizeof(buf), "%s:", opt); 494 opt = buf; 495 } 496 S_NUMBER_OR_ZERO("verbosity:", verbosity) 497 else if(strcmp(opt, "statistics-interval:") == 0) { 498 if(strcmp(val, "0") == 0 || strcmp(val, "") == 0) 499 cfg->stat_interval = 0; 500 else if(atoi(val) == 0) 501 return 0; 502 else cfg->stat_interval = atoi(val); 503 } else if(strcmp(opt, "num-threads:") == 0) { 504 /* not supported, library must have 1 thread in bgworker */ 505 return 0; 506 } else if(strcmp(opt, "outgoing-port-permit:") == 0) { 507 return cfg_mark_ports(val, 1, 508 cfg->outgoing_avail_ports, 65536); 509 } else if(strcmp(opt, "outgoing-port-avoid:") == 0) { 510 return cfg_mark_ports(val, 0, 511 cfg->outgoing_avail_ports, 65536); 512 } else if(strcmp(opt, "local-zone:") == 0) { 513 return cfg_parse_local_zone(cfg, val); 514 } else if(strcmp(opt, "val-override-date:") == 0) { 515 if(strcmp(val, "") == 0 || strcmp(val, "0") == 0) { 516 cfg->val_date_override = 0; 517 } else if(strlen(val) == 14) { 518 cfg->val_date_override = cfg_convert_timeval(val); 519 return cfg->val_date_override != 0; 520 } else { 521 if(atoi(val) == 0) return 0; 522 cfg->val_date_override = (uint32_t)atoi(val); 523 } 524 } else if(strcmp(opt, "local-data-ptr:") == 0) { 525 char* ptr = cfg_ptr_reverse((char*)opt); 526 return cfg_strlist_insert(&cfg->local_data, ptr); 527 } else if(strcmp(opt, "logfile:") == 0) { 528 cfg->use_syslog = 0; 529 free(cfg->logfile); 530 return (cfg->logfile = strdup(val)) != NULL; 531 } 532 else if(strcmp(opt, "log-time-ascii:") == 0) 533 { IS_YES_OR_NO; cfg->log_time_ascii = (strcmp(val, "yes") == 0); 534 log_set_time_asc(cfg->log_time_ascii); } 535 else S_SIZET_NONZERO("max-udp-size:", max_udp_size) 536 else S_YNO("use-syslog:", use_syslog) 537 else S_STR("log-identity:", log_identity) 538 else S_YNO("extended-statistics:", stat_extended) 539 else S_YNO("statistics-inhibit-zero:", stat_inhibit_zero) 540 else S_YNO("statistics-cumulative:", stat_cumulative) 541 else S_YNO("shm-enable:", shm_enable) 542 else S_NUMBER_OR_ZERO("shm-key:", shm_key) 543 else S_YNO("do-ip4:", do_ip4) 544 else S_YNO("do-ip6:", do_ip6) 545 else S_YNO("do-udp:", do_udp) 546 else S_YNO("do-tcp:", do_tcp) 547 else S_YNO("prefer-ip4:", prefer_ip4) 548 else S_YNO("prefer-ip6:", prefer_ip6) 549 else S_YNO("tcp-upstream:", tcp_upstream) 550 else S_YNO("udp-upstream-without-downstream:", 551 udp_upstream_without_downstream) 552 else S_NUMBER_NONZERO("tcp-mss:", tcp_mss) 553 else S_NUMBER_NONZERO("outgoing-tcp-mss:", outgoing_tcp_mss) 554 else S_NUMBER_NONZERO("tcp-auth-query-timeout:", tcp_auth_query_timeout) 555 else S_NUMBER_NONZERO("tcp-idle-timeout:", tcp_idle_timeout) 556 else S_NUMBER_NONZERO("max-reuse-tcp-queries:", max_reuse_tcp_queries) 557 else S_NUMBER_NONZERO("tcp-reuse-timeout:", tcp_reuse_timeout) 558 else S_YNO("edns-tcp-keepalive:", do_tcp_keepalive) 559 else S_NUMBER_NONZERO("edns-tcp-keepalive-timeout:", tcp_keepalive_timeout) 560 else S_NUMBER_OR_ZERO("sock-queue-timeout:", sock_queue_timeout) 561 else S_YNO("ssl-upstream:", ssl_upstream) 562 else S_YNO("tls-upstream:", ssl_upstream) 563 else S_STR("ssl-service-key:", ssl_service_key) 564 else S_STR("tls-service-key:", ssl_service_key) 565 else S_STR("ssl-service-pem:", ssl_service_pem) 566 else S_STR("tls-service-pem:", ssl_service_pem) 567 else S_NUMBER_NONZERO("ssl-port:", ssl_port) 568 else S_NUMBER_NONZERO("tls-port:", ssl_port) 569 else S_STR("ssl-cert-bundle:", tls_cert_bundle) 570 else S_STR("tls-cert-bundle:", tls_cert_bundle) 571 else S_YNO("tls-win-cert:", tls_win_cert) 572 else S_YNO("tls-system-cert:", tls_win_cert) 573 else S_STRLIST("additional-ssl-port:", tls_additional_port) 574 else S_STRLIST("additional-tls-port:", tls_additional_port) 575 else S_STRLIST("tls-additional-ports:", tls_additional_port) 576 else S_STRLIST("tls-additional-port:", tls_additional_port) 577 else S_STRLIST_APPEND("tls-session-ticket-keys:", tls_session_ticket_keys) 578 else S_STR("tls-ciphers:", tls_ciphers) 579 else S_STR("tls-ciphersuites:", tls_ciphersuites) 580 else S_YNO("tls-use-sni:", tls_use_sni) 581 else S_NUMBER_NONZERO("https-port:", https_port) 582 else S_STR("http-endpoint:", http_endpoint) 583 else S_NUMBER_NONZERO("http-max-streams:", http_max_streams) 584 else S_MEMSIZE("http-query-buffer-size:", http_query_buffer_size) 585 else S_MEMSIZE("http-response-buffer-size:", http_response_buffer_size) 586 else S_YNO("http-nodelay:", http_nodelay) 587 else S_YNO("http-notls-downstream:", http_notls_downstream) 588 else S_YNO("interface-automatic:", if_automatic) 589 else S_STR("interface-automatic-ports:", if_automatic_ports) 590 else S_YNO("use-systemd:", use_systemd) 591 else S_YNO("do-daemonize:", do_daemonize) 592 else S_NUMBER_NONZERO("port:", port) 593 else S_NUMBER_NONZERO("outgoing-range:", outgoing_num_ports) 594 else S_SIZET_OR_ZERO("outgoing-num-tcp:", outgoing_num_tcp) 595 else S_SIZET_OR_ZERO("incoming-num-tcp:", incoming_num_tcp) 596 else S_MEMSIZE("stream-wait-size:", stream_wait_size) 597 else S_SIZET_NONZERO("edns-buffer-size:", edns_buffer_size) 598 else S_SIZET_NONZERO("msg-buffer-size:", msg_buffer_size) 599 else S_MEMSIZE("msg-cache-size:", msg_cache_size) 600 else S_POW2("msg-cache-slabs:", msg_cache_slabs) 601 else S_SIZET_NONZERO("num-queries-per-thread:",num_queries_per_thread) 602 else S_SIZET_OR_ZERO("jostle-timeout:", jostle_time) 603 else S_MEMSIZE("so-rcvbuf:", so_rcvbuf) 604 else S_MEMSIZE("so-sndbuf:", so_sndbuf) 605 else S_YNO("so-reuseport:", so_reuseport) 606 else S_YNO("ip-transparent:", ip_transparent) 607 else S_YNO("ip-freebind:", ip_freebind) 608 else S_NUMBER_OR_ZERO("ip-dscp:", ip_dscp) 609 else S_MEMSIZE("rrset-cache-size:", rrset_cache_size) 610 else S_POW2("rrset-cache-slabs:", rrset_cache_slabs) 611 else S_YNO("prefetch:", prefetch) 612 else S_YNO("prefetch-key:", prefetch_key) 613 else S_YNO("deny-any:", deny_any) 614 else if(strcmp(opt, "cache-max-ttl:") == 0) 615 { IS_NUMBER_OR_ZERO; cfg->max_ttl = atoi(val); MAX_TTL=(time_t)cfg->max_ttl;} 616 else if(strcmp(opt, "cache-max-negative-ttl:") == 0) 617 { IS_NUMBER_OR_ZERO; cfg->max_negative_ttl = atoi(val); MAX_NEG_TTL=(time_t)cfg->max_negative_ttl;} 618 else if(strcmp(opt, "cache-min-ttl:") == 0) 619 { IS_NUMBER_OR_ZERO; cfg->min_ttl = atoi(val); MIN_TTL=(time_t)cfg->min_ttl;} 620 else if(strcmp(opt, "infra-cache-min-rtt:") == 0) { 621 IS_NUMBER_OR_ZERO; cfg->infra_cache_min_rtt = atoi(val); 622 RTT_MIN_TIMEOUT=cfg->infra_cache_min_rtt; 623 } 624 else if(strcmp(opt, "infra-cache-max-rtt:") == 0) { 625 IS_NUMBER_OR_ZERO; cfg->infra_cache_max_rtt = atoi(val); 626 RTT_MAX_TIMEOUT=cfg->infra_cache_max_rtt; 627 USEFUL_SERVER_TOP_TIMEOUT = RTT_MAX_TIMEOUT; 628 BLACKLIST_PENALTY = USEFUL_SERVER_TOP_TIMEOUT*4; 629 } 630 else S_YNO("infra-keep-probing:", infra_keep_probing) 631 else S_NUMBER_OR_ZERO("infra-host-ttl:", host_ttl) 632 else S_POW2("infra-cache-slabs:", infra_cache_slabs) 633 else S_SIZET_NONZERO("infra-cache-numhosts:", infra_cache_numhosts) 634 else S_NUMBER_OR_ZERO("delay-close:", delay_close) 635 else S_YNO("udp-connect:", udp_connect) 636 else S_STR("chroot:", chrootdir) 637 else S_STR("username:", username) 638 else S_STR("directory:", directory) 639 else S_STR("pidfile:", pidfile) 640 else S_YNO("hide-identity:", hide_identity) 641 else S_YNO("hide-version:", hide_version) 642 else S_YNO("hide-trustanchor:", hide_trustanchor) 643 else S_YNO("hide-http-user-agent:", hide_http_user_agent) 644 else S_STR("identity:", identity) 645 else S_STR("version:", version) 646 else S_STR("http-user-agent:", http_user_agent) 647 else if(strcmp(opt, "nsid:") == 0) { 648 free(cfg->nsid_cfg_str); 649 if (!(cfg->nsid_cfg_str = strdup(val))) 650 return 0; 651 /* Empty string is just validly unsetting nsid */ 652 if (*val == 0) { 653 free(cfg->nsid); 654 cfg->nsid = NULL; 655 cfg->nsid_len = 0; 656 return 1; 657 } 658 cfg->nsid = cfg_parse_nsid(val, &cfg->nsid_len); 659 return cfg->nsid != NULL; 660 } 661 else S_STRLIST("root-hints:", root_hints) 662 else S_STR("target-fetch-policy:", target_fetch_policy) 663 else S_YNO("harden-glue:", harden_glue) 664 else S_YNO("harden-short-bufsize:", harden_short_bufsize) 665 else S_YNO("harden-large-queries:", harden_large_queries) 666 else S_YNO("harden-dnssec-stripped:", harden_dnssec_stripped) 667 else S_YNO("harden-below-nxdomain:", harden_below_nxdomain) 668 else S_YNO("harden-referral-path:", harden_referral_path) 669 else S_YNO("harden-algo-downgrade:", harden_algo_downgrade) 670 else S_YNO("harden-unknown-additional:", harden_unknown_additional) 671 else S_YNO("use-caps-for-id:", use_caps_bits_for_id) 672 else S_STRLIST("caps-whitelist:", caps_whitelist) 673 else S_SIZET_OR_ZERO("unwanted-reply-threshold:", unwanted_threshold) 674 else S_STRLIST("private-address:", private_address) 675 else S_STRLIST("private-domain:", private_domain) 676 else S_YNO("do-not-query-localhost:", donotquery_localhost) 677 else S_STRLIST("do-not-query-address:", donotqueryaddrs) 678 else S_STRLIST("auto-trust-anchor-file:", auto_trust_anchor_file_list) 679 else S_STRLIST("trust-anchor-file:", trust_anchor_file_list) 680 else S_STRLIST("trust-anchor:", trust_anchor_list) 681 else S_STRLIST("trusted-keys-file:", trusted_keys_file_list) 682 else S_YNO("trust-anchor-signaling:", trust_anchor_signaling) 683 else S_YNO("root-key-sentinel:", root_key_sentinel) 684 else S_STRLIST("domain-insecure:", domain_insecure) 685 else S_NUMBER_OR_ZERO("val-bogus-ttl:", bogus_ttl) 686 else S_YNO("val-clean-additional:", val_clean_additional) 687 else S_NUMBER_OR_ZERO("val-log-level:", val_log_level) 688 else S_YNO("val-log-squelch:", val_log_squelch) 689 else S_YNO("log-queries:", log_queries) 690 else S_YNO("log-replies:", log_replies) 691 else S_YNO("log-tag-queryreply:", log_tag_queryreply) 692 else S_YNO("log-local-actions:", log_local_actions) 693 else S_YNO("log-servfail:", log_servfail) 694 else S_YNO("log-destaddr:", log_destaddr) 695 else S_YNO("val-permissive-mode:", val_permissive_mode) 696 else S_YNO("aggressive-nsec:", aggressive_nsec) 697 else S_YNO("ignore-cd-flag:", ignore_cd) 698 else S_YNO("disable-edns-do:", disable_edns_do) 699 else if(strcmp(opt, "serve-expired:") == 0) 700 { IS_YES_OR_NO; cfg->serve_expired = (strcmp(val, "yes") == 0); 701 SERVE_EXPIRED = cfg->serve_expired; } 702 else if(strcmp(opt, "serve-expired-ttl:") == 0) 703 { IS_NUMBER_OR_ZERO; cfg->serve_expired_ttl = atoi(val); SERVE_EXPIRED_TTL=(time_t)cfg->serve_expired_ttl;} 704 else S_YNO("serve-expired-ttl-reset:", serve_expired_ttl_reset) 705 else if(strcmp(opt, "serve-expired-reply-ttl:") == 0) 706 { IS_NUMBER_OR_ZERO; cfg->serve_expired_reply_ttl = atoi(val); SERVE_EXPIRED_REPLY_TTL=(time_t)cfg->serve_expired_reply_ttl;} 707 else S_NUMBER_OR_ZERO("serve-expired-client-timeout:", serve_expired_client_timeout) 708 else S_YNO("ede:", ede) 709 else S_YNO("ede-serve-expired:", ede_serve_expired) 710 else S_YNO("serve-original-ttl:", serve_original_ttl) 711 else S_STR("val-nsec3-keysize-iterations:", val_nsec3_key_iterations) 712 else S_YNO("zonemd-permissive-mode:", zonemd_permissive_mode) 713 else S_UNSIGNED_OR_ZERO("add-holddown:", add_holddown) 714 else S_UNSIGNED_OR_ZERO("del-holddown:", del_holddown) 715 else S_UNSIGNED_OR_ZERO("keep-missing:", keep_missing) 716 else if(strcmp(opt, "permit-small-holddown:") == 0) 717 { IS_YES_OR_NO; cfg->permit_small_holddown = (strcmp(val, "yes") == 0); 718 autr_permit_small_holddown = cfg->permit_small_holddown; } 719 else S_MEMSIZE("key-cache-size:", key_cache_size) 720 else S_POW2("key-cache-slabs:", key_cache_slabs) 721 else S_MEMSIZE("neg-cache-size:", neg_cache_size) 722 else S_YNO("minimal-responses:", minimal_responses) 723 else S_YNO("rrset-roundrobin:", rrset_roundrobin) 724 else S_NUMBER_OR_ZERO("unknown-server-time-limit:", unknown_server_time_limit) 725 else S_STRLIST("local-data:", local_data) 726 else S_YNO("unblock-lan-zones:", unblock_lan_zones) 727 else S_YNO("insecure-lan-zones:", insecure_lan_zones) 728 else S_YNO("control-enable:", remote_control_enable) 729 else S_STRLIST_APPEND("control-interface:", control_ifs) 730 else S_NUMBER_NONZERO("control-port:", control_port) 731 else S_STR("server-key-file:", server_key_file) 732 else S_STR("server-cert-file:", server_cert_file) 733 else S_STR("control-key-file:", control_key_file) 734 else S_STR("control-cert-file:", control_cert_file) 735 else S_STR("module-config:", module_conf) 736 else S_STRLIST("python-script:", python_script) 737 else S_STRLIST("dynlib-file:", dynlib_file) 738 else S_YNO("disable-dnssec-lame-check:", disable_dnssec_lame_check) 739 #ifdef CLIENT_SUBNET 740 /* Can't set max subnet prefix here, since that value is used when 741 * generating the address tree. */ 742 /* No client-subnet-always-forward here, module registration depends on 743 * this option. */ 744 #endif 745 #ifdef USE_DNSTAP 746 else S_YNO("dnstap-enable:", dnstap) 747 else S_YNO("dnstap-bidirectional:", dnstap_bidirectional) 748 else S_STR("dnstap-socket-path:", dnstap_socket_path) 749 else S_STR("dnstap-ip:", dnstap_ip) 750 else S_YNO("dnstap-tls:", dnstap_tls) 751 else S_STR("dnstap-tls-server-name:", dnstap_tls_server_name) 752 else S_STR("dnstap-tls-cert-bundle:", dnstap_tls_cert_bundle) 753 else S_STR("dnstap-tls-client-key-file:", dnstap_tls_client_key_file) 754 else S_STR("dnstap-tls-client-cert-file:", 755 dnstap_tls_client_cert_file) 756 else S_YNO("dnstap-send-identity:", dnstap_send_identity) 757 else S_YNO("dnstap-send-version:", dnstap_send_version) 758 else S_STR("dnstap-identity:", dnstap_identity) 759 else S_STR("dnstap-version:", dnstap_version) 760 else S_YNO("dnstap-log-resolver-query-messages:", 761 dnstap_log_resolver_query_messages) 762 else S_YNO("dnstap-log-resolver-response-messages:", 763 dnstap_log_resolver_response_messages) 764 else S_YNO("dnstap-log-client-query-messages:", 765 dnstap_log_client_query_messages) 766 else S_YNO("dnstap-log-client-response-messages:", 767 dnstap_log_client_response_messages) 768 else S_YNO("dnstap-log-forwarder-query-messages:", 769 dnstap_log_forwarder_query_messages) 770 else S_YNO("dnstap-log-forwarder-response-messages:", 771 dnstap_log_forwarder_response_messages) 772 #endif 773 #ifdef USE_DNSCRYPT 774 else S_YNO("dnscrypt-enable:", dnscrypt) 775 else S_NUMBER_NONZERO("dnscrypt-port:", dnscrypt_port) 776 else S_STR("dnscrypt-provider:", dnscrypt_provider) 777 else S_STRLIST_UNIQ("dnscrypt-provider-cert:", dnscrypt_provider_cert) 778 else S_STRLIST("dnscrypt-provider-cert-rotated:", dnscrypt_provider_cert_rotated) 779 else S_STRLIST_UNIQ("dnscrypt-secret-key:", dnscrypt_secret_key) 780 else S_MEMSIZE("dnscrypt-shared-secret-cache-size:", 781 dnscrypt_shared_secret_cache_size) 782 else S_POW2("dnscrypt-shared-secret-cache-slabs:", 783 dnscrypt_shared_secret_cache_slabs) 784 else S_MEMSIZE("dnscrypt-nonce-cache-size:", 785 dnscrypt_nonce_cache_size) 786 else S_POW2("dnscrypt-nonce-cache-slabs:", 787 dnscrypt_nonce_cache_slabs) 788 #endif 789 else if(strcmp(opt, "ip-ratelimit-cookie:") == 0) { 790 IS_NUMBER_OR_ZERO; cfg->ip_ratelimit_cookie = atoi(val); 791 infra_ip_ratelimit_cookie=cfg->ip_ratelimit_cookie; 792 } 793 else if(strcmp(opt, "ip-ratelimit:") == 0) { 794 IS_NUMBER_OR_ZERO; cfg->ip_ratelimit = atoi(val); 795 infra_ip_ratelimit=cfg->ip_ratelimit; 796 } 797 else if(strcmp(opt, "ratelimit:") == 0) { 798 IS_NUMBER_OR_ZERO; cfg->ratelimit = atoi(val); 799 infra_dp_ratelimit=cfg->ratelimit; 800 } 801 else S_MEMSIZE("ip-ratelimit-size:", ip_ratelimit_size) 802 else S_MEMSIZE("ratelimit-size:", ratelimit_size) 803 else S_POW2("ip-ratelimit-slabs:", ip_ratelimit_slabs) 804 else S_POW2("ratelimit-slabs:", ratelimit_slabs) 805 else S_NUMBER_OR_ZERO("ip-ratelimit-factor:", ip_ratelimit_factor) 806 else S_NUMBER_OR_ZERO("ratelimit-factor:", ratelimit_factor) 807 else S_YNO("ip-ratelimit-backoff:", ip_ratelimit_backoff) 808 else S_YNO("ratelimit-backoff:", ratelimit_backoff) 809 else S_NUMBER_NONZERO("outbound-msg-retry:", outbound_msg_retry) 810 else S_NUMBER_NONZERO("max-sent-count:", max_sent_count) 811 else S_NUMBER_NONZERO("max-query-restarts:", max_query_restarts) 812 else S_SIZET_NONZERO("fast-server-num:", fast_server_num) 813 else S_NUMBER_OR_ZERO("fast-server-permil:", fast_server_permil) 814 else S_YNO("qname-minimisation:", qname_minimisation) 815 else S_YNO("qname-minimisation-strict:", qname_minimisation_strict) 816 else S_YNO("pad-responses:", pad_responses) 817 else S_SIZET_NONZERO("pad-responses-block-size:", pad_responses_block_size) 818 else S_YNO("pad-queries:", pad_queries) 819 else S_SIZET_NONZERO("pad-queries-block-size:", pad_queries_block_size) 820 else S_STRLIST("proxy-protocol-port:", proxy_protocol_port) 821 #ifdef USE_IPSECMOD 822 else S_YNO("ipsecmod-enabled:", ipsecmod_enabled) 823 else S_YNO("ipsecmod-ignore-bogus:", ipsecmod_ignore_bogus) 824 else if(strcmp(opt, "ipsecmod-max-ttl:") == 0) 825 { IS_NUMBER_OR_ZERO; cfg->ipsecmod_max_ttl = atoi(val); } 826 else S_YNO("ipsecmod-strict:", ipsecmod_strict) 827 #endif 828 #ifdef USE_CACHEDB 829 else S_YNO("cachedb-no-store:", cachedb_no_store) 830 #endif /* USE_CACHEDB */ 831 else if(strcmp(opt, "define-tag:") ==0) { 832 return config_add_tag(cfg, val); 833 /* val_sig_skew_min, max and val_max_restart are copied into val_env 834 * during init so this does not update val_env with set_option */ 835 } else if(strcmp(opt, "val-sig-skew-min:") == 0) 836 { IS_NUMBER_OR_ZERO; cfg->val_sig_skew_min = (int32_t)atoi(val); } 837 else if(strcmp(opt, "val-sig-skew-max:") == 0) 838 { IS_NUMBER_OR_ZERO; cfg->val_sig_skew_max = (int32_t)atoi(val); } 839 else if(strcmp(opt, "val-max-restart:") == 0) 840 { IS_NUMBER_OR_ZERO; cfg->val_max_restart = (int32_t)atoi(val); } 841 else if (strcmp(opt, "outgoing-interface:") == 0) { 842 char* d = strdup(val); 843 char** oi = 844 (char**)reallocarray(NULL, (size_t)cfg->num_out_ifs+1, sizeof(char*)); 845 if(!d || !oi) { free(d); free(oi); return -1; } 846 if(cfg->out_ifs && cfg->num_out_ifs) { 847 memmove(oi, cfg->out_ifs, cfg->num_out_ifs*sizeof(char*)); 848 free(cfg->out_ifs); 849 } 850 oi[cfg->num_out_ifs++] = d; 851 cfg->out_ifs = oi; 852 } else { 853 /* unknown or unsupported (from the set_option interface): 854 * interface, outgoing-interface, access-control, 855 * stub-zone, name, stub-addr, stub-host, stub-prime 856 * forward-first, stub-first, forward-ssl-upstream, 857 * stub-ssl-upstream, forward-zone, auth-zone 858 * name, forward-addr, forward-host, 859 * ratelimit-for-domain, ratelimit-below-domain, 860 * local-zone-tag, access-control-view, interface-*, 861 * send-client-subnet, client-subnet-always-forward, 862 * max-client-subnet-ipv4, max-client-subnet-ipv6, 863 * min-client-subnet-ipv4, min-client-subnet-ipv6, 864 * max-ecs-tree-size-ipv4, max-ecs-tree-size-ipv6, ipsecmod_hook, 865 * ipsecmod_whitelist. */ 866 return 0; 867 } 868 return 1; 869 } 870 871 void config_print_func(char* line, void* arg) 872 { 873 FILE* f = (FILE*)arg; 874 (void)fprintf(f, "%s\n", line); 875 } 876 877 /** collate func arg */ 878 struct config_collate_arg { 879 /** list of result items */ 880 struct config_strlist_head list; 881 /** if a malloc error occurred, 0 is OK */ 882 int status; 883 }; 884 885 void config_collate_func(char* line, void* arg) 886 { 887 struct config_collate_arg* m = (struct config_collate_arg*)arg; 888 if(m->status) 889 return; 890 if(!cfg_strlist_append(&m->list, strdup(line))) 891 m->status = 1; 892 } 893 894 int config_get_option_list(struct config_file* cfg, const char* opt, 895 struct config_strlist** list) 896 { 897 struct config_collate_arg m; 898 memset(&m, 0, sizeof(m)); 899 *list = NULL; 900 if(!config_get_option(cfg, opt, config_collate_func, &m)) 901 return 1; 902 if(m.status) { 903 config_delstrlist(m.list.first); 904 return 2; 905 } 906 *list = m.list.first; 907 return 0; 908 } 909 910 int 911 config_get_option_collate(struct config_file* cfg, const char* opt, char** str) 912 { 913 struct config_strlist* list = NULL; 914 int r; 915 *str = NULL; 916 if((r = config_get_option_list(cfg, opt, &list)) != 0) 917 return r; 918 *str = config_collate_cat(list); 919 config_delstrlist(list); 920 if(!*str) return 2; 921 return 0; 922 } 923 924 char* 925 config_collate_cat(struct config_strlist* list) 926 { 927 size_t total = 0, left; 928 struct config_strlist* s; 929 char *r, *w; 930 if(!list) /* no elements */ 931 return strdup(""); 932 if(list->next == NULL) /* one element , no newline at end. */ 933 return strdup(list->str); 934 /* count total length */ 935 for(s=list; s; s=s->next) 936 total += strlen(s->str) + 1; /* len + newline */ 937 left = total+1; /* one extra for nul at end */ 938 r = malloc(left); 939 if(!r) 940 return NULL; 941 w = r; 942 for(s=list; s; s=s->next) { 943 size_t this = strlen(s->str); 944 if(this+2 > left) { /* sanity check */ 945 free(r); 946 return NULL; 947 } 948 snprintf(w, left, "%s\n", s->str); 949 this = strlen(w); 950 w += this; 951 left -= this; 952 } 953 return r; 954 } 955 956 /** compare and print decimal option */ 957 #define O_DEC(opt, str, var) if(strcmp(opt, str)==0) \ 958 {snprintf(buf, len, "%d", (int)cfg->var); \ 959 func(buf, arg);} 960 /** compare and print unsigned option */ 961 #define O_UNS(opt, str, var) if(strcmp(opt, str)==0) \ 962 {snprintf(buf, len, "%u", (unsigned)cfg->var); \ 963 func(buf, arg);} 964 /** compare and print yesno option */ 965 #define O_YNO(opt, str, var) if(strcmp(opt, str)==0) \ 966 {func(cfg->var?"yes":"no", arg);} 967 /** compare and print string option */ 968 #define O_STR(opt, str, var) if(strcmp(opt, str)==0) \ 969 {func(cfg->var?cfg->var:"", arg);} 970 /** compare and print array option */ 971 #define O_IFC(opt, str, num, arr) if(strcmp(opt, str)==0) \ 972 {int i; for(i=0; i<cfg->num; i++) func(cfg->arr[i], arg);} 973 /** compare and print memorysize option */ 974 #define O_MEM(opt, str, var) if(strcmp(opt, str)==0) { \ 975 if(cfg->var > 1024*1024*1024) { \ 976 size_t f=cfg->var/(size_t)1000000, b=cfg->var%(size_t)1000000; \ 977 snprintf(buf, len, "%u%6.6u", (unsigned)f, (unsigned)b); \ 978 } else snprintf(buf, len, "%u", (unsigned)cfg->var); \ 979 func(buf, arg);} 980 /** compare and print list option */ 981 #define O_LST(opt, name, lst) if(strcmp(opt, name)==0) { \ 982 struct config_strlist* p = cfg->lst; \ 983 for(p = cfg->lst; p; p = p->next) \ 984 func(p->str, arg); \ 985 } 986 /** compare and print list option */ 987 #define O_LS2(opt, name, lst) if(strcmp(opt, name)==0) { \ 988 struct config_str2list* p = cfg->lst; \ 989 for(p = cfg->lst; p; p = p->next) { \ 990 snprintf(buf, len, "%s %s", p->str, p->str2); \ 991 func(buf, arg); \ 992 } \ 993 } 994 /** compare and print list option */ 995 #define O_LS3(opt, name, lst) if(strcmp(opt, name)==0) { \ 996 struct config_str3list* p = cfg->lst; \ 997 for(p = cfg->lst; p; p = p->next) { \ 998 snprintf(buf, len, "%s %s %s", p->str, p->str2, p->str3); \ 999 func(buf, arg); \ 1000 } \ 1001 } 1002 /** compare and print taglist option */ 1003 #define O_LTG(opt, name, lst) if(strcmp(opt, name)==0) { \ 1004 char* tmpstr = NULL; \ 1005 struct config_strbytelist *p = cfg->lst; \ 1006 for(p = cfg->lst; p; p = p->next) {\ 1007 tmpstr = config_taglist2str(cfg, p->str2, p->str2len); \ 1008 if(tmpstr) {\ 1009 snprintf(buf, len, "%s %s", p->str, tmpstr); \ 1010 func(buf, arg); \ 1011 free(tmpstr); \ 1012 } \ 1013 } \ 1014 } 1015 1016 int 1017 config_get_option(struct config_file* cfg, const char* opt, 1018 void (*func)(char*,void*), void* arg) 1019 { 1020 char buf[1024], nopt[64]; 1021 size_t len = sizeof(buf); 1022 if(!opt) return 0; 1023 if(opt && opt[strlen(opt)-1] == ':' && strlen(opt)<sizeof(nopt)) { 1024 memmove(nopt, opt, strlen(opt)); 1025 nopt[strlen(opt)-1] = 0; 1026 opt = nopt; 1027 } 1028 fptr_ok(fptr_whitelist_print_func(func)); 1029 O_DEC(opt, "verbosity", verbosity) 1030 else O_DEC(opt, "statistics-interval", stat_interval) 1031 else O_YNO(opt, "statistics-cumulative", stat_cumulative) 1032 else O_YNO(opt, "extended-statistics", stat_extended) 1033 else O_YNO(opt, "statistics-inhibit-zero", stat_inhibit_zero) 1034 else O_YNO(opt, "shm-enable", shm_enable) 1035 else O_DEC(opt, "shm-key", shm_key) 1036 else O_YNO(opt, "use-syslog", use_syslog) 1037 else O_STR(opt, "log-identity", log_identity) 1038 else O_YNO(opt, "log-time-ascii", log_time_ascii) 1039 else O_DEC(opt, "num-threads", num_threads) 1040 else O_IFC(opt, "interface", num_ifs, ifs) 1041 else O_IFC(opt, "outgoing-interface", num_out_ifs, out_ifs) 1042 else O_YNO(opt, "interface-automatic", if_automatic) 1043 else O_STR(opt, "interface-automatic-ports", if_automatic_ports) 1044 else O_DEC(opt, "port", port) 1045 else O_DEC(opt, "outgoing-range", outgoing_num_ports) 1046 else O_DEC(opt, "outgoing-num-tcp", outgoing_num_tcp) 1047 else O_DEC(opt, "incoming-num-tcp", incoming_num_tcp) 1048 else O_MEM(opt, "stream-wait-size", stream_wait_size) 1049 else O_DEC(opt, "edns-buffer-size", edns_buffer_size) 1050 else O_DEC(opt, "msg-buffer-size", msg_buffer_size) 1051 else O_MEM(opt, "msg-cache-size", msg_cache_size) 1052 else O_DEC(opt, "msg-cache-slabs", msg_cache_slabs) 1053 else O_DEC(opt, "num-queries-per-thread", num_queries_per_thread) 1054 else O_UNS(opt, "jostle-timeout", jostle_time) 1055 else O_MEM(opt, "so-rcvbuf", so_rcvbuf) 1056 else O_MEM(opt, "so-sndbuf", so_sndbuf) 1057 else O_YNO(opt, "so-reuseport", so_reuseport) 1058 else O_YNO(opt, "ip-transparent", ip_transparent) 1059 else O_YNO(opt, "ip-freebind", ip_freebind) 1060 else O_DEC(opt, "ip-dscp", ip_dscp) 1061 else O_MEM(opt, "rrset-cache-size", rrset_cache_size) 1062 else O_DEC(opt, "rrset-cache-slabs", rrset_cache_slabs) 1063 else O_YNO(opt, "prefetch-key", prefetch_key) 1064 else O_YNO(opt, "prefetch", prefetch) 1065 else O_YNO(opt, "deny-any", deny_any) 1066 else O_DEC(opt, "cache-max-ttl", max_ttl) 1067 else O_DEC(opt, "cache-max-negative-ttl", max_negative_ttl) 1068 else O_DEC(opt, "cache-min-ttl", min_ttl) 1069 else O_DEC(opt, "infra-host-ttl", host_ttl) 1070 else O_DEC(opt, "infra-cache-slabs", infra_cache_slabs) 1071 else O_DEC(opt, "infra-cache-min-rtt", infra_cache_min_rtt) 1072 else O_UNS(opt, "infra-cache-max-rtt", infra_cache_max_rtt) 1073 else O_YNO(opt, "infra-keep-probing", infra_keep_probing) 1074 else O_MEM(opt, "infra-cache-numhosts", infra_cache_numhosts) 1075 else O_UNS(opt, "delay-close", delay_close) 1076 else O_YNO(opt, "udp-connect", udp_connect) 1077 else O_YNO(opt, "do-ip4", do_ip4) 1078 else O_YNO(opt, "do-ip6", do_ip6) 1079 else O_YNO(opt, "do-udp", do_udp) 1080 else O_YNO(opt, "do-tcp", do_tcp) 1081 else O_YNO(opt, "prefer-ip4", prefer_ip4) 1082 else O_YNO(opt, "prefer-ip6", prefer_ip6) 1083 else O_YNO(opt, "tcp-upstream", tcp_upstream) 1084 else O_YNO(opt, "udp-upstream-without-downstream", udp_upstream_without_downstream) 1085 else O_DEC(opt, "tcp-mss", tcp_mss) 1086 else O_DEC(opt, "outgoing-tcp-mss", outgoing_tcp_mss) 1087 else O_DEC(opt, "tcp-auth-query-timeout", tcp_auth_query_timeout) 1088 else O_DEC(opt, "tcp-idle-timeout", tcp_idle_timeout) 1089 else O_DEC(opt, "max-reuse-tcp-queries", max_reuse_tcp_queries) 1090 else O_DEC(opt, "tcp-reuse-timeout", tcp_reuse_timeout) 1091 else O_YNO(opt, "edns-tcp-keepalive", do_tcp_keepalive) 1092 else O_DEC(opt, "edns-tcp-keepalive-timeout", tcp_keepalive_timeout) 1093 else O_DEC(opt, "sock-queue-timeout", sock_queue_timeout) 1094 else O_YNO(opt, "ssl-upstream", ssl_upstream) 1095 else O_YNO(opt, "tls-upstream", ssl_upstream) 1096 else O_STR(opt, "ssl-service-key", ssl_service_key) 1097 else O_STR(opt, "tls-service-key", ssl_service_key) 1098 else O_STR(opt, "ssl-service-pem", ssl_service_pem) 1099 else O_STR(opt, "tls-service-pem", ssl_service_pem) 1100 else O_DEC(opt, "ssl-port", ssl_port) 1101 else O_DEC(opt, "tls-port", ssl_port) 1102 else O_STR(opt, "ssl-cert-bundle", tls_cert_bundle) 1103 else O_STR(opt, "tls-cert-bundle", tls_cert_bundle) 1104 else O_YNO(opt, "tls-win-cert", tls_win_cert) 1105 else O_YNO(opt, "tls-system-cert", tls_win_cert) 1106 else O_LST(opt, "additional-ssl-port", tls_additional_port) 1107 else O_LST(opt, "additional-tls-port", tls_additional_port) 1108 else O_LST(opt, "tls-additional-ports", tls_additional_port) 1109 else O_LST(opt, "tls-additional-port", tls_additional_port) 1110 else O_LST(opt, "tls-session-ticket-keys", tls_session_ticket_keys.first) 1111 else O_STR(opt, "tls-ciphers", tls_ciphers) 1112 else O_STR(opt, "tls-ciphersuites", tls_ciphersuites) 1113 else O_YNO(opt, "tls-use-sni", tls_use_sni) 1114 else O_DEC(opt, "https-port", https_port) 1115 else O_STR(opt, "http-endpoint", http_endpoint) 1116 else O_UNS(opt, "http-max-streams", http_max_streams) 1117 else O_MEM(opt, "http-query-buffer-size", http_query_buffer_size) 1118 else O_MEM(opt, "http-response-buffer-size", http_response_buffer_size) 1119 else O_YNO(opt, "http-nodelay", http_nodelay) 1120 else O_YNO(opt, "http-notls-downstream", http_notls_downstream) 1121 else O_YNO(opt, "use-systemd", use_systemd) 1122 else O_YNO(opt, "do-daemonize", do_daemonize) 1123 else O_STR(opt, "chroot", chrootdir) 1124 else O_STR(opt, "username", username) 1125 else O_STR(opt, "directory", directory) 1126 else O_STR(opt, "logfile", logfile) 1127 else O_YNO(opt, "log-queries", log_queries) 1128 else O_YNO(opt, "log-replies", log_replies) 1129 else O_YNO(opt, "log-tag-queryreply", log_tag_queryreply) 1130 else O_YNO(opt, "log-local-actions", log_local_actions) 1131 else O_YNO(opt, "log-servfail", log_servfail) 1132 else O_YNO(opt, "log-destaddr", log_destaddr) 1133 else O_STR(opt, "pidfile", pidfile) 1134 else O_YNO(opt, "hide-identity", hide_identity) 1135 else O_YNO(opt, "hide-version", hide_version) 1136 else O_YNO(opt, "hide-trustanchor", hide_trustanchor) 1137 else O_YNO(opt, "hide-http-user-agent", hide_http_user_agent) 1138 else O_STR(opt, "identity", identity) 1139 else O_STR(opt, "version", version) 1140 else O_STR(opt, "http-user-agent", http_user_agent) 1141 else O_STR(opt, "nsid", nsid_cfg_str) 1142 else O_STR(opt, "target-fetch-policy", target_fetch_policy) 1143 else O_YNO(opt, "harden-short-bufsize", harden_short_bufsize) 1144 else O_YNO(opt, "harden-large-queries", harden_large_queries) 1145 else O_YNO(opt, "harden-glue", harden_glue) 1146 else O_YNO(opt, "harden-dnssec-stripped", harden_dnssec_stripped) 1147 else O_YNO(opt, "harden-below-nxdomain", harden_below_nxdomain) 1148 else O_YNO(opt, "harden-referral-path", harden_referral_path) 1149 else O_YNO(opt, "harden-algo-downgrade", harden_algo_downgrade) 1150 else O_YNO(opt, "harden-unknown-additional", harden_unknown_additional) 1151 else O_YNO(opt, "use-caps-for-id", use_caps_bits_for_id) 1152 else O_LST(opt, "caps-whitelist", caps_whitelist) 1153 else O_DEC(opt, "unwanted-reply-threshold", unwanted_threshold) 1154 else O_YNO(opt, "do-not-query-localhost", donotquery_localhost) 1155 else O_STR(opt, "module-config", module_conf) 1156 else O_DEC(opt, "val-bogus-ttl", bogus_ttl) 1157 else O_YNO(opt, "val-clean-additional", val_clean_additional) 1158 else O_DEC(opt, "val-log-level", val_log_level) 1159 else O_YNO(opt, "val-permissive-mode", val_permissive_mode) 1160 else O_YNO(opt, "aggressive-nsec", aggressive_nsec) 1161 else O_YNO(opt, "ignore-cd-flag", ignore_cd) 1162 else O_YNO(opt, "disable-edns-do", disable_edns_do) 1163 else O_YNO(opt, "serve-expired", serve_expired) 1164 else O_DEC(opt, "serve-expired-ttl", serve_expired_ttl) 1165 else O_YNO(opt, "serve-expired-ttl-reset", serve_expired_ttl_reset) 1166 else O_DEC(opt, "serve-expired-reply-ttl", serve_expired_reply_ttl) 1167 else O_DEC(opt, "serve-expired-client-timeout", serve_expired_client_timeout) 1168 else O_YNO(opt, "ede", ede) 1169 else O_YNO(opt, "ede-serve-expired", ede_serve_expired) 1170 else O_YNO(opt, "serve-original-ttl", serve_original_ttl) 1171 else O_STR(opt, "val-nsec3-keysize-iterations",val_nsec3_key_iterations) 1172 else O_YNO(opt, "zonemd-permissive-mode", zonemd_permissive_mode) 1173 else O_UNS(opt, "add-holddown", add_holddown) 1174 else O_UNS(opt, "del-holddown", del_holddown) 1175 else O_UNS(opt, "keep-missing", keep_missing) 1176 else O_YNO(opt, "permit-small-holddown", permit_small_holddown) 1177 else O_MEM(opt, "key-cache-size", key_cache_size) 1178 else O_DEC(opt, "key-cache-slabs", key_cache_slabs) 1179 else O_MEM(opt, "neg-cache-size", neg_cache_size) 1180 else O_YNO(opt, "control-enable", remote_control_enable) 1181 else O_DEC(opt, "control-port", control_port) 1182 else O_STR(opt, "server-key-file", server_key_file) 1183 else O_STR(opt, "server-cert-file", server_cert_file) 1184 else O_STR(opt, "control-key-file", control_key_file) 1185 else O_STR(opt, "control-cert-file", control_cert_file) 1186 else O_LST(opt, "root-hints", root_hints) 1187 else O_LS2(opt, "access-control", acls) 1188 else O_LS2(opt, "tcp-connection-limit", tcp_connection_limits) 1189 else O_LST(opt, "do-not-query-address", donotqueryaddrs) 1190 else O_LST(opt, "private-address", private_address) 1191 else O_LST(opt, "private-domain", private_domain) 1192 else O_LST(opt, "auto-trust-anchor-file", auto_trust_anchor_file_list) 1193 else O_LST(opt, "trust-anchor-file", trust_anchor_file_list) 1194 else O_LST(opt, "trust-anchor", trust_anchor_list) 1195 else O_LST(opt, "trusted-keys-file", trusted_keys_file_list) 1196 else O_YNO(opt, "trust-anchor-signaling", trust_anchor_signaling) 1197 else O_YNO(opt, "root-key-sentinel", root_key_sentinel) 1198 else O_LST(opt, "control-interface", control_ifs.first) 1199 else O_LST(opt, "domain-insecure", domain_insecure) 1200 else O_UNS(opt, "val-override-date", val_date_override) 1201 else O_YNO(opt, "minimal-responses", minimal_responses) 1202 else O_YNO(opt, "rrset-roundrobin", rrset_roundrobin) 1203 else O_DEC(opt, "unknown-server-time-limit", unknown_server_time_limit) 1204 #ifdef CLIENT_SUBNET 1205 else O_LST(opt, "send-client-subnet", client_subnet) 1206 else O_LST(opt, "client-subnet-zone", client_subnet_zone) 1207 else O_DEC(opt, "max-client-subnet-ipv4", max_client_subnet_ipv4) 1208 else O_DEC(opt, "max-client-subnet-ipv6", max_client_subnet_ipv6) 1209 else O_DEC(opt, "min-client-subnet-ipv4", min_client_subnet_ipv4) 1210 else O_DEC(opt, "min-client-subnet-ipv6", min_client_subnet_ipv6) 1211 else O_DEC(opt, "max-ecs-tree-size-ipv4", max_ecs_tree_size_ipv4) 1212 else O_DEC(opt, "max-ecs-tree-size-ipv6", max_ecs_tree_size_ipv6) 1213 else O_YNO(opt, "client-subnet-always-forward:", 1214 client_subnet_always_forward) 1215 #endif 1216 #ifdef USE_DNSTAP 1217 else O_YNO(opt, "dnstap-enable", dnstap) 1218 else O_YNO(opt, "dnstap-bidirectional", dnstap_bidirectional) 1219 else O_STR(opt, "dnstap-socket-path", dnstap_socket_path) 1220 else O_STR(opt, "dnstap-ip", dnstap_ip) 1221 else O_YNO(opt, "dnstap-tls", dnstap_tls) 1222 else O_STR(opt, "dnstap-tls-server-name", dnstap_tls_server_name) 1223 else O_STR(opt, "dnstap-tls-cert-bundle", dnstap_tls_cert_bundle) 1224 else O_STR(opt, "dnstap-tls-client-key-file", 1225 dnstap_tls_client_key_file) 1226 else O_STR(opt, "dnstap-tls-client-cert-file", 1227 dnstap_tls_client_cert_file) 1228 else O_YNO(opt, "dnstap-send-identity", dnstap_send_identity) 1229 else O_YNO(opt, "dnstap-send-version", dnstap_send_version) 1230 else O_STR(opt, "dnstap-identity", dnstap_identity) 1231 else O_STR(opt, "dnstap-version", dnstap_version) 1232 else O_YNO(opt, "dnstap-log-resolver-query-messages", 1233 dnstap_log_resolver_query_messages) 1234 else O_YNO(opt, "dnstap-log-resolver-response-messages", 1235 dnstap_log_resolver_response_messages) 1236 else O_YNO(opt, "dnstap-log-client-query-messages", 1237 dnstap_log_client_query_messages) 1238 else O_YNO(opt, "dnstap-log-client-response-messages", 1239 dnstap_log_client_response_messages) 1240 else O_YNO(opt, "dnstap-log-forwarder-query-messages", 1241 dnstap_log_forwarder_query_messages) 1242 else O_YNO(opt, "dnstap-log-forwarder-response-messages", 1243 dnstap_log_forwarder_response_messages) 1244 #endif 1245 #ifdef USE_DNSCRYPT 1246 else O_YNO(opt, "dnscrypt-enable", dnscrypt) 1247 else O_DEC(opt, "dnscrypt-port", dnscrypt_port) 1248 else O_STR(opt, "dnscrypt-provider", dnscrypt_provider) 1249 else O_LST(opt, "dnscrypt-provider-cert", dnscrypt_provider_cert) 1250 else O_LST(opt, "dnscrypt-provider-cert-rotated", dnscrypt_provider_cert_rotated) 1251 else O_LST(opt, "dnscrypt-secret-key", dnscrypt_secret_key) 1252 else O_MEM(opt, "dnscrypt-shared-secret-cache-size", 1253 dnscrypt_shared_secret_cache_size) 1254 else O_DEC(opt, "dnscrypt-shared-secret-cache-slabs", 1255 dnscrypt_shared_secret_cache_slabs) 1256 else O_MEM(opt, "dnscrypt-nonce-cache-size", 1257 dnscrypt_nonce_cache_size) 1258 else O_DEC(opt, "dnscrypt-nonce-cache-slabs", 1259 dnscrypt_nonce_cache_slabs) 1260 #endif 1261 else O_YNO(opt, "unblock-lan-zones", unblock_lan_zones) 1262 else O_YNO(opt, "insecure-lan-zones", insecure_lan_zones) 1263 else O_DEC(opt, "max-udp-size", max_udp_size) 1264 else O_LST(opt, "python-script", python_script) 1265 else O_LST(opt, "dynlib-file", dynlib_file) 1266 else O_YNO(opt, "disable-dnssec-lame-check", disable_dnssec_lame_check) 1267 else O_DEC(opt, "ip-ratelimit-cookie", ip_ratelimit_cookie) 1268 else O_DEC(opt, "ip-ratelimit", ip_ratelimit) 1269 else O_DEC(opt, "ratelimit", ratelimit) 1270 else O_MEM(opt, "ip-ratelimit-size", ip_ratelimit_size) 1271 else O_MEM(opt, "ratelimit-size", ratelimit_size) 1272 else O_DEC(opt, "ip-ratelimit-slabs", ip_ratelimit_slabs) 1273 else O_DEC(opt, "ratelimit-slabs", ratelimit_slabs) 1274 else O_LS2(opt, "ratelimit-for-domain", ratelimit_for_domain) 1275 else O_LS2(opt, "ratelimit-below-domain", ratelimit_below_domain) 1276 else O_DEC(opt, "ip-ratelimit-factor", ip_ratelimit_factor) 1277 else O_DEC(opt, "ratelimit-factor", ratelimit_factor) 1278 else O_YNO(opt, "ip-ratelimit-backoff", ip_ratelimit_backoff) 1279 else O_YNO(opt, "ratelimit-backoff", ratelimit_backoff) 1280 else O_UNS(opt, "outbound-msg-retry", outbound_msg_retry) 1281 else O_UNS(opt, "max-sent-count", max_sent_count) 1282 else O_UNS(opt, "max-query-restarts", max_query_restarts) 1283 else O_DEC(opt, "fast-server-num", fast_server_num) 1284 else O_DEC(opt, "fast-server-permil", fast_server_permil) 1285 else O_DEC(opt, "val-sig-skew-min", val_sig_skew_min) 1286 else O_DEC(opt, "val-sig-skew-max", val_sig_skew_max) 1287 else O_DEC(opt, "val-max-restart", val_max_restart) 1288 else O_YNO(opt, "qname-minimisation", qname_minimisation) 1289 else O_YNO(opt, "qname-minimisation-strict", qname_minimisation_strict) 1290 else O_IFC(opt, "define-tag", num_tags, tagname) 1291 else O_LTG(opt, "local-zone-tag", local_zone_tags) 1292 else O_LTG(opt, "access-control-tag", acl_tags) 1293 else O_LTG(opt, "response-ip-tag", respip_tags) 1294 else O_LS3(opt, "local-zone-override", local_zone_overrides) 1295 else O_LS3(opt, "access-control-tag-action", acl_tag_actions) 1296 else O_LS3(opt, "access-control-tag-data", acl_tag_datas) 1297 else O_LS2(opt, "access-control-view", acl_view) 1298 else O_LS2(opt, "interface-action", interface_actions) 1299 else O_LTG(opt, "interface-tag", interface_tags) 1300 else O_LS3(opt, "interface-tag-action", interface_tag_actions) 1301 else O_LS3(opt, "interface-tag-data", interface_tag_datas) 1302 else O_LS2(opt, "interface-view", interface_view) 1303 else O_YNO(opt, "pad-responses", pad_responses) 1304 else O_DEC(opt, "pad-responses-block-size", pad_responses_block_size) 1305 else O_YNO(opt, "pad-queries", pad_queries) 1306 else O_DEC(opt, "pad-queries-block-size", pad_queries_block_size) 1307 else O_LS2(opt, "edns-client-strings", edns_client_strings) 1308 else O_LST(opt, "proxy-protocol-port", proxy_protocol_port) 1309 #ifdef USE_IPSECMOD 1310 else O_YNO(opt, "ipsecmod-enabled", ipsecmod_enabled) 1311 else O_YNO(opt, "ipsecmod-ignore-bogus", ipsecmod_ignore_bogus) 1312 else O_STR(opt, "ipsecmod-hook", ipsecmod_hook) 1313 else O_DEC(opt, "ipsecmod-max-ttl", ipsecmod_max_ttl) 1314 else O_LST(opt, "ipsecmod-whitelist", ipsecmod_whitelist) 1315 else O_YNO(opt, "ipsecmod-strict", ipsecmod_strict) 1316 #endif 1317 #ifdef USE_CACHEDB 1318 else O_STR(opt, "backend", cachedb_backend) 1319 else O_STR(opt, "secret-seed", cachedb_secret) 1320 else O_YNO(opt, "cachedb-no-store", cachedb_no_store) 1321 #ifdef USE_REDIS 1322 else O_STR(opt, "redis-server-host", redis_server_host) 1323 else O_DEC(opt, "redis-server-port", redis_server_port) 1324 else O_STR(opt, "redis-server-path", redis_server_path) 1325 else O_STR(opt, "redis-server-password", redis_server_password) 1326 else O_DEC(opt, "redis-timeout", redis_timeout) 1327 else O_YNO(opt, "redis-expire-records", redis_expire_records) 1328 else O_DEC(opt, "redis-logical-db", redis_logical_db) 1329 #endif /* USE_REDIS */ 1330 #endif /* USE_CACHEDB */ 1331 #ifdef USE_IPSET 1332 else O_STR(opt, "name-v4", ipset_name_v4) 1333 else O_STR(opt, "name-v6", ipset_name_v6) 1334 #endif 1335 /* not here: 1336 * outgoing-permit, outgoing-avoid - have list of ports 1337 * local-zone - zones and nodefault variables 1338 * local-data - see below 1339 * local-data-ptr - converted to local-data entries 1340 * stub-zone, name, stub-addr, stub-host, stub-prime 1341 * forward-zone, name, forward-addr, forward-host 1342 */ 1343 else return 0; 1344 return 1; 1345 } 1346 1347 /** initialize the global cfg_parser object */ 1348 static void 1349 create_cfg_parser(struct config_file* cfg, char* filename, const char* chroot) 1350 { 1351 static struct config_parser_state st; 1352 cfg_parser = &st; 1353 cfg_parser->filename = filename; 1354 cfg_parser->line = 1; 1355 cfg_parser->errors = 0; 1356 cfg_parser->cfg = cfg; 1357 cfg_parser->chroot = chroot; 1358 cfg_parser->started_toplevel = 0; 1359 init_cfg_parse(); 1360 } 1361 1362 int 1363 config_read(struct config_file* cfg, const char* filename, const char* chroot) 1364 { 1365 FILE *in; 1366 char *fname = (char*)filename; 1367 #ifdef HAVE_GLOB 1368 glob_t g; 1369 size_t i; 1370 int r, flags; 1371 #endif 1372 if(!fname) 1373 return 1; 1374 1375 /* check for wildcards */ 1376 #ifdef HAVE_GLOB 1377 if(!(!strchr(fname, '*') && !strchr(fname, '?') && !strchr(fname, '[') && 1378 !strchr(fname, '{') && !strchr(fname, '~'))) { 1379 verbose(VERB_QUERY, "wildcard found, processing %s", fname); 1380 flags = 0 1381 #ifdef GLOB_ERR 1382 | GLOB_ERR 1383 #endif 1384 #ifdef GLOB_NOSORT 1385 | GLOB_NOSORT 1386 #endif 1387 #ifdef GLOB_BRACE 1388 | GLOB_BRACE 1389 #endif 1390 #ifdef GLOB_TILDE 1391 | GLOB_TILDE 1392 #endif 1393 ; 1394 memset(&g, 0, sizeof(g)); 1395 r = glob(fname, flags, NULL, &g); 1396 if(r) { 1397 /* some error */ 1398 globfree(&g); 1399 if(r == GLOB_NOMATCH) { 1400 verbose(VERB_QUERY, "include: " 1401 "no matches for %s", fname); 1402 return 1; 1403 } else if(r == GLOB_NOSPACE) { 1404 log_err("include: %s: " 1405 "fnametern out of memory", fname); 1406 } else if(r == GLOB_ABORTED) { 1407 log_err("wildcard include: %s: expansion " 1408 "aborted (%s)", fname, strerror(errno)); 1409 } else { 1410 log_err("wildcard include: %s: expansion " 1411 "failed (%s)", fname, strerror(errno)); 1412 } 1413 /* ignore globs that yield no files */ 1414 return 1; 1415 } 1416 /* process files found, if any */ 1417 for(i=0; i<(size_t)g.gl_pathc; i++) { 1418 if(!config_read(cfg, g.gl_pathv[i], chroot)) { 1419 log_err("error reading wildcard " 1420 "include: %s", g.gl_pathv[i]); 1421 globfree(&g); 1422 return 0; 1423 } 1424 } 1425 globfree(&g); 1426 return 1; 1427 } 1428 #endif /* HAVE_GLOB */ 1429 1430 in = fopen(fname, "r"); 1431 if(!in) { 1432 log_err("Could not open %s: %s", fname, strerror(errno)); 1433 return 0; 1434 } 1435 create_cfg_parser(cfg, fname, chroot); 1436 ub_c_in = in; 1437 ub_c_parse(); 1438 fclose(in); 1439 1440 if(!cfg->dnscrypt) cfg->dnscrypt_port = 0; 1441 1442 if(cfg_parser->errors != 0) { 1443 fprintf(stderr, "read %s failed: %d errors in configuration file\n", 1444 fname, cfg_parser->errors); 1445 errno=EINVAL; 1446 return 0; 1447 } 1448 1449 return 1; 1450 } 1451 1452 struct config_stub* cfg_stub_find(struct config_stub*** pp, const char* nm) 1453 { 1454 struct config_stub* p = *(*pp); 1455 while(p) { 1456 if(strcmp(p->name, nm) == 0) 1457 return p; 1458 (*pp) = &p->next; 1459 p = p->next; 1460 } 1461 return NULL; 1462 } 1463 1464 void 1465 config_delstrlist(struct config_strlist* p) 1466 { 1467 struct config_strlist *np; 1468 while(p) { 1469 np = p->next; 1470 free(p->str); 1471 free(p); 1472 p = np; 1473 } 1474 } 1475 1476 void 1477 config_deldblstrlist(struct config_str2list* p) 1478 { 1479 struct config_str2list *np; 1480 while(p) { 1481 np = p->next; 1482 free(p->str); 1483 free(p->str2); 1484 free(p); 1485 p = np; 1486 } 1487 } 1488 1489 void 1490 config_deltrplstrlist(struct config_str3list* p) 1491 { 1492 struct config_str3list *np; 1493 while(p) { 1494 np = p->next; 1495 free(p->str); 1496 free(p->str2); 1497 free(p->str3); 1498 free(p); 1499 p = np; 1500 } 1501 } 1502 1503 void 1504 config_delauth(struct config_auth* p) 1505 { 1506 if(!p) return; 1507 free(p->name); 1508 config_delstrlist(p->masters); 1509 config_delstrlist(p->urls); 1510 config_delstrlist(p->allow_notify); 1511 free(p->zonefile); 1512 free(p->rpz_taglist); 1513 free(p->rpz_action_override); 1514 free(p->rpz_cname); 1515 free(p->rpz_log_name); 1516 free(p); 1517 } 1518 1519 void 1520 config_delauths(struct config_auth* p) 1521 { 1522 struct config_auth* np; 1523 while(p) { 1524 np = p->next; 1525 config_delauth(p); 1526 p = np; 1527 } 1528 } 1529 1530 void 1531 config_delstub(struct config_stub* p) 1532 { 1533 if(!p) return; 1534 free(p->name); 1535 config_delstrlist(p->hosts); 1536 config_delstrlist(p->addrs); 1537 free(p); 1538 } 1539 1540 void 1541 config_delstubs(struct config_stub* p) 1542 { 1543 struct config_stub* np; 1544 while(p) { 1545 np = p->next; 1546 config_delstub(p); 1547 p = np; 1548 } 1549 } 1550 1551 void 1552 config_delview(struct config_view* p) 1553 { 1554 if(!p) return; 1555 free(p->name); 1556 config_deldblstrlist(p->local_zones); 1557 config_delstrlist(p->local_zones_nodefault); 1558 #ifdef USE_IPSET 1559 config_delstrlist(p->local_zones_ipset); 1560 #endif 1561 config_delstrlist(p->local_data); 1562 free(p); 1563 } 1564 1565 void 1566 config_delviews(struct config_view* p) 1567 { 1568 struct config_view* np; 1569 while(p) { 1570 np = p->next; 1571 config_delview(p); 1572 p = np; 1573 } 1574 } 1575 1576 void 1577 config_del_strarray(char** array, int num) 1578 { 1579 int i; 1580 if(!array) 1581 return; 1582 for(i=0; i<num; i++) { 1583 free(array[i]); 1584 } 1585 free(array); 1586 } 1587 1588 void 1589 config_del_strbytelist(struct config_strbytelist* p) 1590 { 1591 struct config_strbytelist* np; 1592 while(p) { 1593 np = p->next; 1594 free(p->str); 1595 free(p->str2); 1596 free(p); 1597 p = np; 1598 } 1599 } 1600 1601 void 1602 config_delete(struct config_file* cfg) 1603 { 1604 if(!cfg) return; 1605 free(cfg->username); 1606 free(cfg->chrootdir); 1607 free(cfg->directory); 1608 free(cfg->logfile); 1609 free(cfg->pidfile); 1610 free(cfg->if_automatic_ports); 1611 free(cfg->target_fetch_policy); 1612 free(cfg->ssl_service_key); 1613 free(cfg->ssl_service_pem); 1614 free(cfg->tls_cert_bundle); 1615 config_delstrlist(cfg->tls_additional_port); 1616 config_delstrlist(cfg->tls_session_ticket_keys.first); 1617 free(cfg->tls_ciphers); 1618 free(cfg->tls_ciphersuites); 1619 free(cfg->http_endpoint); 1620 if(cfg->log_identity) { 1621 log_ident_revert_to_default(); 1622 free(cfg->log_identity); 1623 } 1624 config_del_strarray(cfg->ifs, cfg->num_ifs); 1625 config_del_strarray(cfg->out_ifs, cfg->num_out_ifs); 1626 config_delstubs(cfg->stubs); 1627 config_delstubs(cfg->forwards); 1628 config_delauths(cfg->auths); 1629 config_delviews(cfg->views); 1630 config_delstrlist(cfg->donotqueryaddrs); 1631 config_delstrlist(cfg->root_hints); 1632 #ifdef CLIENT_SUBNET 1633 config_delstrlist(cfg->client_subnet); 1634 config_delstrlist(cfg->client_subnet_zone); 1635 #endif 1636 free(cfg->identity); 1637 free(cfg->version); 1638 free(cfg->http_user_agent); 1639 free(cfg->nsid_cfg_str); 1640 free(cfg->nsid); 1641 free(cfg->module_conf); 1642 free(cfg->outgoing_avail_ports); 1643 config_delstrlist(cfg->caps_whitelist); 1644 config_delstrlist(cfg->private_address); 1645 config_delstrlist(cfg->private_domain); 1646 config_delstrlist(cfg->auto_trust_anchor_file_list); 1647 config_delstrlist(cfg->trust_anchor_file_list); 1648 config_delstrlist(cfg->trusted_keys_file_list); 1649 config_delstrlist(cfg->trust_anchor_list); 1650 config_delstrlist(cfg->domain_insecure); 1651 config_deldblstrlist(cfg->acls); 1652 config_deldblstrlist(cfg->tcp_connection_limits); 1653 free(cfg->val_nsec3_key_iterations); 1654 config_deldblstrlist(cfg->local_zones); 1655 config_delstrlist(cfg->local_zones_nodefault); 1656 #ifdef USE_IPSET 1657 config_delstrlist(cfg->local_zones_ipset); 1658 #endif 1659 config_delstrlist(cfg->local_data); 1660 config_deltrplstrlist(cfg->local_zone_overrides); 1661 config_del_strarray(cfg->tagname, cfg->num_tags); 1662 config_del_strbytelist(cfg->local_zone_tags); 1663 config_del_strbytelist(cfg->respip_tags); 1664 config_deldblstrlist(cfg->acl_view); 1665 config_del_strbytelist(cfg->acl_tags); 1666 config_deltrplstrlist(cfg->acl_tag_actions); 1667 config_deltrplstrlist(cfg->acl_tag_datas); 1668 config_deldblstrlist(cfg->interface_actions); 1669 config_deldblstrlist(cfg->interface_view); 1670 config_del_strbytelist(cfg->interface_tags); 1671 config_deltrplstrlist(cfg->interface_tag_actions); 1672 config_deltrplstrlist(cfg->interface_tag_datas); 1673 config_delstrlist(cfg->control_ifs.first); 1674 free(cfg->server_key_file); 1675 free(cfg->server_cert_file); 1676 free(cfg->control_key_file); 1677 free(cfg->control_cert_file); 1678 free(cfg->nat64_prefix); 1679 free(cfg->dns64_prefix); 1680 config_delstrlist(cfg->dns64_ignore_aaaa); 1681 free(cfg->dnstap_socket_path); 1682 free(cfg->dnstap_ip); 1683 free(cfg->dnstap_tls_server_name); 1684 free(cfg->dnstap_tls_cert_bundle); 1685 free(cfg->dnstap_tls_client_key_file); 1686 free(cfg->dnstap_tls_client_cert_file); 1687 free(cfg->dnstap_identity); 1688 free(cfg->dnstap_version); 1689 config_deldblstrlist(cfg->ratelimit_for_domain); 1690 config_deldblstrlist(cfg->ratelimit_below_domain); 1691 config_delstrlist(cfg->python_script); 1692 config_delstrlist(cfg->dynlib_file); 1693 config_deldblstrlist(cfg->edns_client_strings); 1694 config_delstrlist(cfg->proxy_protocol_port); 1695 #ifdef USE_IPSECMOD 1696 free(cfg->ipsecmod_hook); 1697 config_delstrlist(cfg->ipsecmod_whitelist); 1698 #endif 1699 #ifdef USE_CACHEDB 1700 free(cfg->cachedb_backend); 1701 free(cfg->cachedb_secret); 1702 #ifdef USE_REDIS 1703 free(cfg->redis_server_host); 1704 free(cfg->redis_server_path); 1705 free(cfg->redis_server_password); 1706 #endif /* USE_REDIS */ 1707 #endif /* USE_CACHEDB */ 1708 #ifdef USE_IPSET 1709 free(cfg->ipset_name_v4); 1710 free(cfg->ipset_name_v6); 1711 #endif 1712 free(cfg); 1713 } 1714 1715 static void 1716 init_cookie_secret(uint8_t* cookie_secret, size_t cookie_secret_len) 1717 { 1718 struct ub_randstate *rand = ub_initstate(NULL); 1719 1720 if (!rand) 1721 fatal_exit("could not init random generator"); 1722 while (cookie_secret_len) { 1723 *cookie_secret++ = (uint8_t)ub_random(rand); 1724 cookie_secret_len--; 1725 } 1726 ub_randfree(rand); 1727 } 1728 1729 static void 1730 init_outgoing_availports(int* a, int num) 1731 { 1732 /* generated with make iana_update */ 1733 const int iana_assigned[] = { 1734 #include "util/iana_ports.inc" 1735 -1 }; /* end marker to put behind trailing comma */ 1736 1737 int i; 1738 /* do not use <1024, that could be trouble with the system, privs */ 1739 for(i=1024; i<num; i++) { 1740 a[i] = i; 1741 } 1742 /* create empty spot at 49152 to keep ephemeral ports available 1743 * to other programs */ 1744 for(i=49152; i<49152+256; i++) 1745 a[i] = 0; 1746 /* pick out all the IANA assigned ports */ 1747 for(i=0; iana_assigned[i]!=-1; i++) { 1748 if(iana_assigned[i] < num) 1749 a[iana_assigned[i]] = 0; 1750 } 1751 } 1752 1753 int 1754 cfg_mark_ports(const char* str, int allow, int* avail, int num) 1755 { 1756 char* mid = strchr(str, '-'); 1757 #ifdef DISABLE_EXPLICIT_PORT_RANDOMISATION 1758 log_warn("Explicit port randomisation disabled, ignoring " 1759 "outgoing-port-permit and outgoing-port-avoid configuration " 1760 "options"); 1761 #endif 1762 if(!mid) { 1763 int port = atoi(str); 1764 if(port == 0 && strcmp(str, "0") != 0) { 1765 log_err("cannot parse port number '%s'", str); 1766 return 0; 1767 } 1768 if(port < num) 1769 avail[port] = (allow?port:0); 1770 } else { 1771 int i, low, high = atoi(mid+1); 1772 char buf[16]; 1773 if(high == 0 && strcmp(mid+1, "0") != 0) { 1774 log_err("cannot parse port number '%s'", mid+1); 1775 return 0; 1776 } 1777 if( (int)(mid-str)+1 >= (int)sizeof(buf) ) { 1778 log_err("cannot parse port number '%s'", str); 1779 return 0; 1780 } 1781 if(mid > str) 1782 memcpy(buf, str, (size_t)(mid-str)); 1783 buf[mid-str] = 0; 1784 low = atoi(buf); 1785 if(low == 0 && strcmp(buf, "0") != 0) { 1786 log_err("cannot parse port number '%s'", buf); 1787 return 0; 1788 } 1789 for(i=low; i<=high; i++) { 1790 if(i < num) 1791 avail[i] = (allow?i:0); 1792 } 1793 return 1; 1794 } 1795 return 1; 1796 } 1797 1798 int 1799 cfg_scan_ports(int* avail, int num) 1800 { 1801 int i; 1802 int count = 0; 1803 for(i=0; i<num; i++) { 1804 if(avail[i]) 1805 count++; 1806 } 1807 return count; 1808 } 1809 1810 int cfg_condense_ports(struct config_file* cfg, int** avail) 1811 { 1812 int num = cfg_scan_ports(cfg->outgoing_avail_ports, 65536); 1813 int i, at = 0; 1814 *avail = NULL; 1815 if(num == 0) 1816 return 0; 1817 *avail = (int*)reallocarray(NULL, (size_t)num, sizeof(int)); 1818 if(!*avail) 1819 return 0; 1820 for(i=0; i<65536; i++) { 1821 if(cfg->outgoing_avail_ports[i]) 1822 (*avail)[at++] = cfg->outgoing_avail_ports[i]; 1823 } 1824 log_assert(at == num); 1825 return num; 1826 } 1827 1828 void cfg_apply_local_port_policy(struct config_file* cfg, int num) { 1829 (void)cfg; 1830 (void)num; 1831 #ifdef USE_LINUX_IP_LOCAL_PORT_RANGE 1832 { 1833 int i = 0; 1834 FILE* range_fd; 1835 if ((range_fd = fopen(LINUX_IP_LOCAL_PORT_RANGE_PATH, "r")) != NULL) { 1836 int min_port = 0; 1837 int max_port = num - 1; 1838 if (fscanf(range_fd, "%d %d", &min_port, &max_port) == 2) { 1839 for(i=0; i<min_port; i++) { 1840 cfg->outgoing_avail_ports[i] = 0; 1841 } 1842 for(i=max_port+1; i<num; i++) { 1843 cfg->outgoing_avail_ports[i] = 0; 1844 } 1845 } else { 1846 log_err("unexpected port range in %s", 1847 LINUX_IP_LOCAL_PORT_RANGE_PATH); 1848 } 1849 fclose(range_fd); 1850 } else { 1851 log_err("failed to read from file: %s (%s)", 1852 LINUX_IP_LOCAL_PORT_RANGE_PATH, 1853 strerror(errno)); 1854 } 1855 } 1856 #endif 1857 } 1858 1859 /** print error with file and line number */ 1860 static void ub_c_error_va_list(const char *fmt, va_list args) 1861 { 1862 cfg_parser->errors++; 1863 fprintf(stderr, "%s:%d: error: ", cfg_parser->filename, 1864 cfg_parser->line); 1865 vfprintf(stderr, fmt, args); 1866 fprintf(stderr, "\n"); 1867 } 1868 1869 /** print error with file and line number */ 1870 void ub_c_error_msg(const char* fmt, ...) 1871 { 1872 va_list args; 1873 va_start(args, fmt); 1874 ub_c_error_va_list(fmt, args); 1875 va_end(args); 1876 } 1877 1878 void ub_c_error(const char *str) 1879 { 1880 cfg_parser->errors++; 1881 if(strcmp(str, "syntax error")==0 && cfg_parser->started_toplevel ==0) 1882 str = "syntax error, is there no section start after an " 1883 "include-toplevel directive perhaps."; 1884 fprintf(stderr, "%s:%d: error: %s\n", cfg_parser->filename, 1885 cfg_parser->line, str); 1886 } 1887 1888 int ub_c_wrap(void) 1889 { 1890 return 1; 1891 } 1892 1893 int cfg_strlist_append(struct config_strlist_head* list, char* item) 1894 { 1895 struct config_strlist *s; 1896 if(!item || !list) { 1897 free(item); 1898 return 0; 1899 } 1900 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist)); 1901 if(!s) { 1902 free(item); 1903 return 0; 1904 } 1905 s->str = item; 1906 s->next = NULL; 1907 if(list->last) 1908 list->last->next = s; 1909 else 1910 list->first = s; 1911 list->last = s; 1912 return 1; 1913 } 1914 1915 int 1916 cfg_region_strlist_insert(struct regional* region, 1917 struct config_strlist** head, char* item) 1918 { 1919 struct config_strlist *s; 1920 if(!item || !head) 1921 return 0; 1922 s = (struct config_strlist*)regional_alloc_zero(region, 1923 sizeof(struct config_strlist)); 1924 if(!s) 1925 return 0; 1926 s->str = item; 1927 s->next = *head; 1928 *head = s; 1929 return 1; 1930 } 1931 1932 struct config_strlist* 1933 cfg_strlist_find(struct config_strlist* head, const char *item) 1934 { 1935 struct config_strlist *s = head; 1936 if(!head){ 1937 return NULL; 1938 } 1939 while(s) { 1940 if(strcmp(s->str, item) == 0) { 1941 return s; 1942 } 1943 s = s->next; 1944 } 1945 return NULL; 1946 } 1947 1948 int 1949 cfg_strlist_insert(struct config_strlist** head, char* item) 1950 { 1951 struct config_strlist *s; 1952 if(!item || !head) { 1953 free(item); 1954 return 0; 1955 } 1956 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist)); 1957 if(!s) { 1958 free(item); 1959 return 0; 1960 } 1961 s->str = item; 1962 s->next = *head; 1963 *head = s; 1964 return 1; 1965 } 1966 1967 int 1968 cfg_strlist_append_ex(struct config_strlist** head, char* item) 1969 { 1970 struct config_strlist *s; 1971 if(!item || !head) 1972 return 0; 1973 s = (struct config_strlist*)calloc(1, sizeof(struct config_strlist)); 1974 if(!s) 1975 return 0; 1976 s->str = item; 1977 s->next = NULL; 1978 1979 if (*head==NULL) { 1980 *head = s; 1981 } else { 1982 struct config_strlist *last = *head; 1983 while (last->next!=NULL) { 1984 last = last->next; 1985 } 1986 last->next = s; 1987 } 1988 1989 return 1; 1990 } 1991 1992 int 1993 cfg_str2list_insert(struct config_str2list** head, char* item, char* i2) 1994 { 1995 struct config_str2list *s; 1996 if(!item || !i2 || !head) { 1997 free(item); 1998 free(i2); 1999 return 0; 2000 } 2001 s = (struct config_str2list*)calloc(1, sizeof(struct config_str2list)); 2002 if(!s) { 2003 free(item); 2004 free(i2); 2005 return 0; 2006 } 2007 s->str = item; 2008 s->str2 = i2; 2009 s->next = *head; 2010 *head = s; 2011 return 1; 2012 } 2013 2014 int 2015 cfg_str3list_insert(struct config_str3list** head, char* item, char* i2, 2016 char* i3) 2017 { 2018 struct config_str3list *s; 2019 if(!item || !i2 || !i3 || !head) 2020 return 0; 2021 s = (struct config_str3list*)calloc(1, sizeof(struct config_str3list)); 2022 if(!s) 2023 return 0; 2024 s->str = item; 2025 s->str2 = i2; 2026 s->str3 = i3; 2027 s->next = *head; 2028 *head = s; 2029 return 1; 2030 } 2031 2032 int 2033 cfg_strbytelist_insert(struct config_strbytelist** head, char* item, 2034 uint8_t* i2, size_t i2len) 2035 { 2036 struct config_strbytelist* s; 2037 if(!item || !i2 || !head) 2038 return 0; 2039 s = (struct config_strbytelist*)calloc(1, sizeof(*s)); 2040 if(!s) 2041 return 0; 2042 s->str = item; 2043 s->str2 = i2; 2044 s->str2len = i2len; 2045 s->next = *head; 2046 *head = s; 2047 return 1; 2048 } 2049 2050 time_t 2051 cfg_convert_timeval(const char* str) 2052 { 2053 time_t t; 2054 struct tm tm; 2055 memset(&tm, 0, sizeof(tm)); 2056 if(strlen(str) < 14) 2057 return 0; 2058 if(sscanf(str, "%4d%2d%2d%2d%2d%2d", &tm.tm_year, &tm.tm_mon, 2059 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) != 6) 2060 return 0; 2061 tm.tm_year -= 1900; 2062 tm.tm_mon--; 2063 /* Check values */ 2064 if (tm.tm_year < 70) return 0; 2065 if (tm.tm_mon < 0 || tm.tm_mon > 11) return 0; 2066 if (tm.tm_mday < 1 || tm.tm_mday > 31) return 0; 2067 if (tm.tm_hour < 0 || tm.tm_hour > 23) return 0; 2068 if (tm.tm_min < 0 || tm.tm_min > 59) return 0; 2069 if (tm.tm_sec < 0 || tm.tm_sec > 59) return 0; 2070 /* call ldns conversion function */ 2071 t = sldns_mktime_from_utc(&tm); 2072 return t; 2073 } 2074 2075 int 2076 cfg_count_numbers(const char* s) 2077 { 2078 /* format ::= (sp num)+ sp */ 2079 /* num ::= [-](0-9)+ */ 2080 /* sp ::= (space|tab)* */ 2081 int num = 0; 2082 while(*s) { 2083 while(*s && isspace((unsigned char)*s)) 2084 s++; 2085 if(!*s) /* end of string */ 2086 break; 2087 if(*s == '-') 2088 s++; 2089 if(!*s) /* only - not allowed */ 2090 return 0; 2091 if(!isdigit((unsigned char)*s)) /* bad character */ 2092 return 0; 2093 while(*s && isdigit((unsigned char)*s)) 2094 s++; 2095 num++; 2096 } 2097 return num; 2098 } 2099 2100 /** all digit number */ 2101 static int isalldigit(const char* str, size_t l) 2102 { 2103 size_t i; 2104 for(i=0; i<l; i++) 2105 if(!isdigit((unsigned char)str[i])) 2106 return 0; 2107 return 1; 2108 } 2109 2110 int 2111 cfg_parse_memsize(const char* str, size_t* res) 2112 { 2113 size_t len; 2114 size_t mult = 1; 2115 if(!str || (len=(size_t)strlen(str)) == 0) { 2116 log_err("not a size: '%s'", str); 2117 return 0; 2118 } 2119 if(isalldigit(str, len)) { 2120 *res = (size_t)atol(str); 2121 return 1; 2122 } 2123 /* check appended num */ 2124 while(len>0 && str[len-1]==' ') 2125 len--; 2126 if(len > 1 && str[len-1] == 'b') 2127 len--; 2128 else if(len > 1 && str[len-1] == 'B') 2129 len--; 2130 2131 if(len > 1 && tolower((unsigned char)str[len-1]) == 'g') 2132 mult = 1024*1024*1024; 2133 else if(len > 1 && tolower((unsigned char)str[len-1]) == 'm') 2134 mult = 1024*1024; 2135 else if(len > 1 && tolower((unsigned char)str[len-1]) == 'k') 2136 mult = 1024; 2137 else if(len > 0 && isdigit((unsigned char)str[len-1])) 2138 mult = 1; 2139 else { 2140 log_err("unknown size specifier: '%s'", str); 2141 return 0; 2142 } 2143 while(len>1 && str[len-2]==' ') 2144 len--; 2145 2146 if(!isalldigit(str, len-1)) { 2147 log_err("unknown size specifier: '%s'", str); 2148 return 0; 2149 } 2150 *res = ((size_t)atol(str)) * mult; 2151 return 1; 2152 } 2153 2154 int 2155 find_tag_id(struct config_file* cfg, const char* tag) 2156 { 2157 int i; 2158 for(i=0; i<cfg->num_tags; i++) { 2159 if(strcmp(cfg->tagname[i], tag) == 0) 2160 return i; 2161 } 2162 return -1; 2163 } 2164 2165 int 2166 config_add_tag(struct config_file* cfg, const char* tag) 2167 { 2168 char** newarray; 2169 char* newtag; 2170 if(find_tag_id(cfg, tag) != -1) 2171 return 1; /* nothing to do */ 2172 newarray = (char**)malloc(sizeof(char*)*(cfg->num_tags+1)); 2173 if(!newarray) 2174 return 0; 2175 newtag = strdup(tag); 2176 if(!newtag) { 2177 free(newarray); 2178 return 0; 2179 } 2180 if(cfg->tagname) { 2181 memcpy(newarray, cfg->tagname, sizeof(char*)*cfg->num_tags); 2182 free(cfg->tagname); 2183 } 2184 newarray[cfg->num_tags++] = newtag; 2185 cfg->tagname = newarray; 2186 return 1; 2187 } 2188 2189 /** set a bit in a bit array */ 2190 static void 2191 cfg_set_bit(uint8_t* bitlist, size_t len, int id) 2192 { 2193 int pos = id/8; 2194 log_assert((size_t)pos < len); 2195 (void)len; 2196 bitlist[pos] |= 1<<(id%8); 2197 } 2198 2199 uint8_t* config_parse_taglist(struct config_file* cfg, char* str, 2200 size_t* listlen) 2201 { 2202 uint8_t* taglist = NULL; 2203 size_t len = 0; 2204 char* p, *s; 2205 2206 /* allocate */ 2207 if(cfg->num_tags == 0) { 2208 log_err("parse taglist, but no tags defined"); 2209 return 0; 2210 } 2211 len = (size_t)(cfg->num_tags+7)/8; 2212 taglist = calloc(1, len); 2213 if(!taglist) { 2214 log_err("out of memory"); 2215 return 0; 2216 } 2217 2218 /* parse */ 2219 s = str; 2220 while((p=strsep(&s, " \t\n")) != NULL) { 2221 if(*p) { 2222 int id = find_tag_id(cfg, p); 2223 /* set this bit in the bitlist */ 2224 if(id == -1) { 2225 log_err("unknown tag: %s", p); 2226 free(taglist); 2227 return 0; 2228 } 2229 cfg_set_bit(taglist, len, id); 2230 } 2231 } 2232 2233 *listlen = len; 2234 return taglist; 2235 } 2236 2237 uint8_t* cfg_parse_nsid(const char* str, uint16_t* nsid_len) 2238 { 2239 uint8_t* nsid = NULL; 2240 2241 if (strncasecmp(str, "ascii_", 6) == 0) { 2242 if ((nsid = (uint8_t *)strdup(str + 6))) 2243 *nsid_len = strlen(str + 6); 2244 2245 } else if (strlen(str) % 2) { 2246 ; /* hex string has even number of characters */ 2247 } 2248 2249 else if (*str && (nsid = calloc(1, strlen(str) / 2))) { 2250 const char *ch; 2251 uint8_t *dp; 2252 2253 for ( ch = str, dp = nsid 2254 ; isxdigit(ch[0]) && isxdigit(ch[1]) 2255 ; ch += 2, dp++) { 2256 *dp = (uint8_t)sldns_hexdigit_to_int(ch[0]) * 16; 2257 *dp += (uint8_t)sldns_hexdigit_to_int(ch[1]); 2258 } 2259 if (*ch) { 2260 free(nsid); 2261 nsid = NULL; 2262 } else 2263 *nsid_len = strlen(str) / 2; 2264 } 2265 return nsid; 2266 } 2267 2268 2269 char* config_taglist2str(struct config_file* cfg, uint8_t* taglist, 2270 size_t taglen) 2271 { 2272 char buf[10240]; 2273 size_t i, j, len = 0; 2274 buf[0] = 0; 2275 for(i=0; i<taglen; i++) { 2276 if(taglist[i] == 0) 2277 continue; 2278 for(j=0; j<8; j++) { 2279 if((taglist[i] & (1<<j)) != 0) { 2280 size_t id = i*8 + j; 2281 snprintf(buf+len, sizeof(buf)-len, "%s%s", 2282 (len==0?"":" "), cfg->tagname[id]); 2283 len += strlen(buf+len); 2284 } 2285 } 2286 } 2287 return strdup(buf); 2288 } 2289 2290 int taglist_intersect(uint8_t* list1, size_t list1len, const uint8_t* list2, 2291 size_t list2len) 2292 { 2293 size_t i; 2294 if(!list1 || !list2) 2295 return 0; 2296 for(i=0; i<list1len && i<list2len; i++) { 2297 if((list1[i] & list2[i]) != 0) 2298 return 1; 2299 } 2300 return 0; 2301 } 2302 2303 void 2304 config_apply(struct config_file* config) 2305 { 2306 MAX_TTL = (time_t)config->max_ttl; 2307 MIN_TTL = (time_t)config->min_ttl; 2308 SERVE_EXPIRED = config->serve_expired; 2309 SERVE_EXPIRED_TTL = (time_t)config->serve_expired_ttl; 2310 SERVE_EXPIRED_REPLY_TTL = (time_t)config->serve_expired_reply_ttl; 2311 SERVE_ORIGINAL_TTL = config->serve_original_ttl; 2312 MAX_NEG_TTL = (time_t)config->max_negative_ttl; 2313 RTT_MIN_TIMEOUT = config->infra_cache_min_rtt; 2314 RTT_MAX_TIMEOUT = config->infra_cache_max_rtt; 2315 EDNS_ADVERTISED_SIZE = (uint16_t)config->edns_buffer_size; 2316 MINIMAL_RESPONSES = config->minimal_responses; 2317 RRSET_ROUNDROBIN = config->rrset_roundrobin; 2318 LOG_TAG_QUERYREPLY = config->log_tag_queryreply; 2319 UNKNOWN_SERVER_NICENESS = config->unknown_server_time_limit; 2320 USEFUL_SERVER_TOP_TIMEOUT = RTT_MAX_TIMEOUT; 2321 BLACKLIST_PENALTY = USEFUL_SERVER_TOP_TIMEOUT*4; 2322 log_set_time_asc(config->log_time_ascii); 2323 autr_permit_small_holddown = config->permit_small_holddown; 2324 stream_wait_max = config->stream_wait_size; 2325 http2_query_buffer_max = config->http_query_buffer_size; 2326 http2_response_buffer_max = config->http_response_buffer_size; 2327 } 2328 2329 void config_lookup_uid(struct config_file* cfg) 2330 { 2331 #ifdef HAVE_GETPWNAM 2332 /* translate username into uid and gid */ 2333 if(cfg->username && cfg->username[0]) { 2334 struct passwd *pwd; 2335 if((pwd = getpwnam(cfg->username)) != NULL) { 2336 cfg_uid = pwd->pw_uid; 2337 cfg_gid = pwd->pw_gid; 2338 } 2339 } 2340 #else 2341 (void)cfg; 2342 #endif 2343 } 2344 2345 /** 2346 * Calculate string length of full pathname in original filesys 2347 * @param fname: the path name to convert. 2348 * Must not be null or empty. 2349 * @param cfg: config struct for chroot and chdir (if set). 2350 * @param use_chdir: if false, only chroot is applied. 2351 * @return length of string. 2352 * remember to allocate one more for 0 at end in mallocs. 2353 */ 2354 static size_t 2355 strlen_after_chroot(const char* fname, struct config_file* cfg, int use_chdir) 2356 { 2357 size_t len = 0; 2358 int slashit = 0; 2359 if(cfg->chrootdir && cfg->chrootdir[0] && 2360 strncmp(cfg->chrootdir, fname, strlen(cfg->chrootdir)) == 0) { 2361 /* already full pathname, return it */ 2362 return strlen(fname); 2363 } 2364 /* chroot */ 2365 if(cfg->chrootdir && cfg->chrootdir[0]) { 2366 /* start with chrootdir */ 2367 len += strlen(cfg->chrootdir); 2368 slashit = 1; 2369 } 2370 /* chdir */ 2371 #ifdef UB_ON_WINDOWS 2372 if(fname[0] != 0 && fname[1] == ':') { 2373 /* full path, no chdir */ 2374 } else 2375 #endif 2376 if(fname[0] == '/' || !use_chdir) { 2377 /* full path, no chdir */ 2378 } else if(cfg->directory && cfg->directory[0]) { 2379 /* prepend chdir */ 2380 if(slashit && cfg->directory[0] != '/') 2381 len++; 2382 if(cfg->chrootdir && cfg->chrootdir[0] && 2383 strncmp(cfg->chrootdir, cfg->directory, 2384 strlen(cfg->chrootdir)) == 0) 2385 len += strlen(cfg->directory)-strlen(cfg->chrootdir); 2386 else len += strlen(cfg->directory); 2387 slashit = 1; 2388 } 2389 /* fname */ 2390 if(slashit && fname[0] != '/') 2391 len++; 2392 len += strlen(fname); 2393 return len; 2394 } 2395 2396 char* 2397 fname_after_chroot(const char* fname, struct config_file* cfg, int use_chdir) 2398 { 2399 size_t len = strlen_after_chroot(fname, cfg, use_chdir)+1; 2400 int slashit = 0; 2401 char* buf = (char*)malloc(len); 2402 if(!buf) 2403 return NULL; 2404 buf[0] = 0; 2405 /* is fname already in chroot ? */ 2406 if(cfg->chrootdir && cfg->chrootdir[0] && 2407 strncmp(cfg->chrootdir, fname, strlen(cfg->chrootdir)) == 0) { 2408 /* already full pathname, return it */ 2409 (void)strlcpy(buf, fname, len); 2410 buf[len-1] = 0; 2411 return buf; 2412 } 2413 /* chroot */ 2414 if(cfg->chrootdir && cfg->chrootdir[0]) { 2415 /* start with chrootdir */ 2416 (void)strlcpy(buf, cfg->chrootdir, len); 2417 slashit = 1; 2418 } 2419 #ifdef UB_ON_WINDOWS 2420 if(fname[0] != 0 && fname[1] == ':') { 2421 /* full path, no chdir */ 2422 } else 2423 #endif 2424 /* chdir */ 2425 if(fname[0] == '/' || !use_chdir) { 2426 /* full path, no chdir */ 2427 } else if(cfg->directory && cfg->directory[0]) { 2428 /* prepend chdir */ 2429 if(slashit && cfg->directory[0] != '/') 2430 (void)strlcat(buf, "/", len); 2431 /* is the directory already in the chroot? */ 2432 if(cfg->chrootdir && cfg->chrootdir[0] && 2433 strncmp(cfg->chrootdir, cfg->directory, 2434 strlen(cfg->chrootdir)) == 0) 2435 (void)strlcat(buf, cfg->directory+strlen(cfg->chrootdir), 2436 len); 2437 else (void)strlcat(buf, cfg->directory, len); 2438 slashit = 1; 2439 } 2440 /* fname */ 2441 if(slashit && fname[0] != '/') 2442 (void)strlcat(buf, "/", len); 2443 (void)strlcat(buf, fname, len); 2444 buf[len-1] = 0; 2445 return buf; 2446 } 2447 2448 /** return next space character in string */ 2449 static char* next_space_pos(const char* str) 2450 { 2451 char* sp = strchr(str, ' '); 2452 char* tab = strchr(str, '\t'); 2453 if(!tab && !sp) 2454 return NULL; 2455 if(!sp) return tab; 2456 if(!tab) return sp; 2457 return (sp<tab)?sp:tab; 2458 } 2459 2460 /** return last space character in string */ 2461 static char* last_space_pos(const char* str) 2462 { 2463 char* sp = strrchr(str, ' '); 2464 char* tab = strrchr(str, '\t'); 2465 if(!tab && !sp) 2466 return NULL; 2467 if(!sp) return tab; 2468 if(!tab) return sp; 2469 return (sp>tab)?sp:tab; 2470 } 2471 2472 int 2473 cfg_parse_local_zone(struct config_file* cfg, const char* val) 2474 { 2475 const char *type, *name_end, *name; 2476 char buf[256]; 2477 2478 /* parse it as: [zone_name] [between stuff] [zone_type] */ 2479 name = val; 2480 while(*name && isspace((unsigned char)*name)) 2481 name++; 2482 if(!*name) { 2483 log_err("syntax error: too short: %s", val); 2484 return 0; 2485 } 2486 name_end = next_space_pos(name); 2487 if(!name_end || !*name_end) { 2488 log_err("syntax error: expected zone type: %s", val); 2489 return 0; 2490 } 2491 if (name_end - name > 255) { 2492 log_err("syntax error: bad zone name: %s", val); 2493 return 0; 2494 } 2495 (void)strlcpy(buf, name, sizeof(buf)); 2496 buf[name_end-name] = '\0'; 2497 2498 type = last_space_pos(name_end); 2499 while(type && *type && isspace((unsigned char)*type)) 2500 type++; 2501 if(!type || !*type) { 2502 log_err("syntax error: expected zone type: %s", val); 2503 return 0; 2504 } 2505 2506 if(strcmp(type, "nodefault")==0) { 2507 return cfg_strlist_insert(&cfg->local_zones_nodefault, 2508 strdup(name)); 2509 #ifdef USE_IPSET 2510 } else if(strcmp(type, "ipset")==0) { 2511 return cfg_strlist_insert(&cfg->local_zones_ipset, 2512 strdup(name)); 2513 #endif 2514 } else { 2515 return cfg_str2list_insert(&cfg->local_zones, strdup(buf), 2516 strdup(type)); 2517 } 2518 } 2519 2520 char* cfg_ptr_reverse(char* str) 2521 { 2522 char* ip, *ip_end; 2523 char* name; 2524 char* result; 2525 char buf[1024]; 2526 struct sockaddr_storage addr; 2527 socklen_t addrlen; 2528 2529 /* parse it as: [IP] [between stuff] [name] */ 2530 ip = str; 2531 while(*ip && isspace((unsigned char)*ip)) 2532 ip++; 2533 if(!*ip) { 2534 log_err("syntax error: too short: %s", str); 2535 return NULL; 2536 } 2537 ip_end = next_space_pos(ip); 2538 if(!ip_end || !*ip_end) { 2539 log_err("syntax error: expected name: %s", str); 2540 return NULL; 2541 } 2542 2543 name = last_space_pos(ip_end); 2544 if(!name || !*name) { 2545 log_err("syntax error: expected name: %s", str); 2546 return NULL; 2547 } 2548 2549 sscanf(ip, "%100s", buf); 2550 buf[sizeof(buf)-1]=0; 2551 2552 if(!ipstrtoaddr(buf, UNBOUND_DNS_PORT, &addr, &addrlen)) { 2553 log_err("syntax error: cannot parse address: %s", str); 2554 return NULL; 2555 } 2556 2557 /* reverse IPv4: 2558 * ddd.ddd.ddd.ddd.in-addr-arpa. 2559 * IPv6: (h.){32}.ip6.arpa. */ 2560 2561 if(addr_is_ip6(&addr, addrlen)) { 2562 uint8_t ad[16]; 2563 const char* hex = "0123456789abcdef"; 2564 char *p = buf; 2565 int i; 2566 memmove(ad, &((struct sockaddr_in6*)&addr)->sin6_addr, 2567 sizeof(ad)); 2568 for(i=15; i>=0; i--) { 2569 uint8_t b = ad[i]; 2570 *p++ = hex[ (b&0x0f) ]; 2571 *p++ = '.'; 2572 *p++ = hex[ (b&0xf0) >> 4 ]; 2573 *p++ = '.'; 2574 } 2575 snprintf(buf+16*4, sizeof(buf)-16*4, "ip6.arpa. "); 2576 } else { 2577 uint8_t ad[4]; 2578 memmove(ad, &((struct sockaddr_in*)&addr)->sin_addr, 2579 sizeof(ad)); 2580 snprintf(buf, sizeof(buf), "%u.%u.%u.%u.in-addr.arpa. ", 2581 (unsigned)ad[3], (unsigned)ad[2], 2582 (unsigned)ad[1], (unsigned)ad[0]); 2583 } 2584 2585 /* printed the reverse address, now the between goop and name on end */ 2586 while(*ip_end && isspace((unsigned char)*ip_end)) 2587 ip_end++; 2588 if(name>ip_end) { 2589 snprintf(buf+strlen(buf), sizeof(buf)-strlen(buf), "%.*s", 2590 (int)(name-ip_end), ip_end); 2591 } 2592 snprintf(buf+strlen(buf), sizeof(buf)-strlen(buf), " PTR %s", name); 2593 2594 result = strdup(buf); 2595 if(!result) { 2596 log_err("out of memory parsing %s", str); 2597 return NULL; 2598 } 2599 return result; 2600 } 2601 2602 #ifdef UB_ON_WINDOWS 2603 char* 2604 w_lookup_reg_str(const char* key, const char* name) 2605 { 2606 HKEY hk = NULL; 2607 DWORD type = 0; 2608 BYTE buf[1024]; 2609 DWORD len = (DWORD)sizeof(buf); 2610 LONG ret; 2611 char* result = NULL; 2612 ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &hk); 2613 if(ret == ERROR_FILE_NOT_FOUND) 2614 return NULL; /* key does not exist */ 2615 else if(ret != ERROR_SUCCESS) { 2616 log_err("RegOpenKeyEx failed"); 2617 return NULL; 2618 } 2619 ret = RegQueryValueEx(hk, (LPCTSTR)name, 0, &type, buf, &len); 2620 if(RegCloseKey(hk)) 2621 log_err("RegCloseKey"); 2622 if(ret == ERROR_FILE_NOT_FOUND) 2623 return NULL; /* name does not exist */ 2624 else if(ret != ERROR_SUCCESS) { 2625 log_err("RegQueryValueEx failed"); 2626 return NULL; 2627 } 2628 if(type == REG_SZ || type == REG_MULTI_SZ || type == REG_EXPAND_SZ) { 2629 buf[sizeof(buf)-1] = 0; 2630 buf[sizeof(buf)-2] = 0; /* for multi_sz */ 2631 result = strdup((char*)buf); 2632 if(!result) log_err("out of memory"); 2633 } 2634 return result; 2635 } 2636 2637 void w_config_adjust_directory(struct config_file* cfg) 2638 { 2639 if(cfg->directory && cfg->directory[0]) { 2640 TCHAR dirbuf[2*MAX_PATH+4]; 2641 if(strcmp(cfg->directory, "%EXECUTABLE%") == 0) { 2642 /* get executable path, and if that contains 2643 * directories, snip off the filename part */ 2644 dirbuf[0] = 0; 2645 if(!GetModuleFileName(NULL, dirbuf, MAX_PATH)) 2646 log_err("could not GetModuleFileName"); 2647 if(strrchr(dirbuf, '\\')) { 2648 (strrchr(dirbuf, '\\'))[0] = 0; 2649 } else log_err("GetModuleFileName had no path"); 2650 if(dirbuf[0]) { 2651 /* adjust directory for later lookups to work*/ 2652 free(cfg->directory); 2653 cfg->directory = memdup(dirbuf, strlen(dirbuf)+1); 2654 } 2655 } 2656 } 2657 } 2658 #endif /* UB_ON_WINDOWS */ 2659 2660 int options_remote_is_address(struct config_file* cfg) 2661 { 2662 if(!cfg->remote_control_enable) return 0; 2663 if(!cfg->control_ifs.first) return 1; 2664 if(!cfg->control_ifs.first->str) return 1; 2665 if(cfg->control_ifs.first->str[0] == 0) return 1; 2666 return (cfg->control_ifs.first->str[0] != '/'); 2667 } 2668 2669 /** see if interface is https, its port number == the https port number */ 2670 int 2671 if_is_https(const char* ifname, const char* port, int https_port) 2672 { 2673 char* p = strchr(ifname, '@'); 2674 if(!p && atoi(port) == https_port) 2675 return 1; 2676 if(p && atoi(p+1) == https_port) 2677 return 1; 2678 return 0; 2679 } 2680 2681 /** see if config contains https turned on */ 2682 int cfg_has_https(struct config_file* cfg) 2683 { 2684 int i; 2685 char portbuf[32]; 2686 snprintf(portbuf, sizeof(portbuf), "%d", cfg->port); 2687 for(i = 0; i<cfg->num_ifs; i++) { 2688 if(if_is_https(cfg->ifs[i], portbuf, cfg->https_port)) 2689 return 1; 2690 } 2691 return 0; 2692 } 2693 2694 /** see if interface is PROXYv2, its port number == the proxy port number */ 2695 int 2696 if_is_pp2(const char* ifname, const char* port, 2697 struct config_strlist* proxy_protocol_port) 2698 { 2699 struct config_strlist* s; 2700 char* p = strchr(ifname, '@'); 2701 for(s = proxy_protocol_port; s; s = s->next) { 2702 if(p && atoi(p+1) == atoi(s->str)) 2703 return 1; 2704 if(!p && atoi(port) == atoi(s->str)) 2705 return 1; 2706 } 2707 return 0; 2708 } 2709 2710 /** see if interface is DNSCRYPT, its port number == the dnscrypt port number */ 2711 int 2712 if_is_dnscrypt(const char* ifname, const char* port, int dnscrypt_port) 2713 { 2714 #ifdef USE_DNSCRYPT 2715 return ((strchr(ifname, '@') && 2716 atoi(strchr(ifname, '@')+1) == dnscrypt_port) || 2717 (!strchr(ifname, '@') && atoi(port) == dnscrypt_port)); 2718 #else 2719 (void)ifname; 2720 (void)port; 2721 (void)dnscrypt_port; 2722 return 0; 2723 #endif 2724 } 2725