1 /* 2 * checkconf - Read and repeat configuration file to output. 3 * 4 * Copyright (c) 2001-2006, NLnet Labs. All rights reserved. 5 * 6 * See LICENSE for the license. 7 * 8 */ 9 #include "config.h" 10 #include <stdio.h> 11 #include <stdlib.h> 12 #include <unistd.h> 13 #include <string.h> 14 #include <limits.h> 15 #include "tsig.h" 16 #include "options.h" 17 #include "util.h" 18 #include "dname.h" 19 #include "rrl.h" 20 21 extern char *optarg; 22 extern int optind; 23 static void usage(void) ATTR_NORETURN; 24 int zonec_parse_string(region_type* ATTR_UNUSED(region), 25 domain_table_type* ATTR_UNUSED(domains), zone_type* ATTR_UNUSED(zone), 26 char* ATTR_UNUSED(str), domain_type** ATTR_UNUSED(parsed), 27 int* ATTR_UNUSED(num_rrs)) 28 { 29 return 0; 30 } 31 32 #define ZONE_GET_ACL(NAME, VAR, PATTERN) \ 33 if (strcasecmp(#NAME, (VAR)) == 0) { \ 34 quote_acl(PATTERN->NAME); \ 35 return; \ 36 } 37 38 #define ZONE_GET_OUTGOING(NAME, VAR, PATTERN) \ 39 if (strcasecmp(#NAME, (VAR)) == 0) { \ 40 acl_options_type* acl; \ 41 for(acl=PATTERN->NAME; acl; acl=acl->next) \ 42 quote(acl->ip_address_spec); \ 43 return; \ 44 } 45 46 #define ZONE_GET_STR(NAME, VAR, PATTERN) \ 47 if (strcasecmp(#NAME, (VAR)) == 0) { \ 48 quote(PATTERN->NAME); \ 49 return; \ 50 } 51 52 #define ZONE_GET_PATH(FINAL, NAME, VAR, PATTERN) \ 53 if (strcasecmp(#NAME, (VAR)) == 0) { \ 54 quotepath(opt, FINAL, PATTERN->NAME); \ 55 return; \ 56 } 57 58 #define ZONE_GET_BIN(NAME, VAR, PATTERN) \ 59 if (strcasecmp(#NAME, (VAR)) == 0) { \ 60 printf("%s\n", (PATTERN->NAME)?"yes":"no"); \ 61 return; \ 62 } 63 64 #define ZONE_GET_RRL(NAME, VAR, PATTERN) \ 65 if (strcasecmp(#NAME, (VAR)) == 0) { \ 66 zone_print_rrl_whitelist("", PATTERN->NAME); \ 67 return; \ 68 } 69 70 #define ZONE_GET_INT(NAME, VAR, PATTERN) \ 71 if (strcasecmp(#NAME, (VAR)) == 0) { \ 72 printf("%d\n", (int) PATTERN->NAME); \ 73 return; \ 74 } 75 76 #define SERV_GET_BIN(NAME, VAR) \ 77 if (strcasecmp(#NAME, (VAR)) == 0) { \ 78 printf("%s\n", opt->NAME?"yes":"no"); \ 79 return; \ 80 } 81 82 #define SERV_GET_STR(NAME, VAR) \ 83 if (strcasecmp(#NAME, (VAR)) == 0) { \ 84 quote(opt->NAME); \ 85 return; \ 86 } 87 88 #define SERV_GET_PATH(FINAL, NAME, VAR) \ 89 if (strcasecmp(#NAME, (VAR)) == 0) { \ 90 quotepath(opt, FINAL, opt->NAME); \ 91 return; \ 92 } 93 94 #define SERV_GET_INT(NAME, VAR) \ 95 if (strcasecmp(#NAME, (VAR)) == 0) { \ 96 printf("%d\n", (int) opt->NAME); \ 97 return; \ 98 } 99 100 #define SERV_GET_IP(NAME, MEMBER, VAR) \ 101 if (strcasecmp(#NAME, (VAR)) == 0) { \ 102 for(ip = opt->MEMBER; ip; ip=ip->next) \ 103 { \ 104 quote(ip->address); \ 105 } \ 106 return; \ 107 } 108 109 #ifdef RATELIMIT 110 static void zone_print_rrl_whitelist(const char* s, uint16_t w) 111 { 112 int i; 113 if(w==rrl_type_all) { 114 printf("%sall\n", s); 115 return; 116 } 117 for(i=0x01; i <= 0x80; i<<=1) { 118 if( (w&i) ) 119 printf("%s%s\n", s, rrltype2str(i)); 120 } 121 } 122 #endif /* RATELIMIT */ 123 124 static char buf[BUFSIZ]; 125 126 static char * 127 underscore(const char *s) { 128 const char *j = s; 129 size_t i = 0; 130 131 while(j && *j) { 132 if (*j == '-') { 133 buf[i++] = '_'; 134 } else { 135 buf[i++] = *j; 136 } 137 j++; 138 if (i >= BUFSIZ) { 139 return NULL; 140 } 141 } 142 buf[i] = '\0'; 143 return buf; 144 } 145 146 static void 147 usage(void) 148 { 149 fprintf(stderr, "usage: nsd-checkconf [-v|-h] [-o option] [-z zonename]\n"); 150 fprintf(stderr, " [-s keyname] [-t tlsauthname] <configfilename>\n"); 151 fprintf(stderr, " Checks NSD configuration file for errors.\n"); 152 fprintf(stderr, " Version %s. Report bugs to <%s>.\n\n", 153 PACKAGE_VERSION, PACKAGE_BUGREPORT); 154 fprintf(stderr, "Use with a configfile as argument to check syntax.\n"); 155 fprintf(stderr, "Use with -o, -z, -t or -s options to query the configuration.\n\n"); 156 fprintf(stderr, "-v Verbose, echo settings that take effect to std output.\n"); 157 fprintf(stderr, "-h Print this help information.\n"); 158 fprintf(stderr, "-f Use with -o to print final pathnames, ie. with chroot.\n"); 159 fprintf(stderr, "-o option Print value of the option specified to stdout.\n"); 160 fprintf(stderr, "-p pattern Print option value for the pattern given.\n"); 161 fprintf(stderr, "-z zonename Print option value for the zone given.\n"); 162 fprintf(stderr, "-a keyname Print algorithm name for the TSIG key.\n"); 163 fprintf(stderr, "-s keyname Print base64 secret blob for the TSIG key.\n"); 164 fprintf(stderr, "-t tls-auth-name Print auth domain name for the tls-auth clause.\n"); 165 exit(1); 166 } 167 168 static void 169 print_string_var(const char* varname, const char* value) 170 { 171 if (!value) { 172 printf("\t#%s\n", varname); 173 } else { 174 printf("\t%s \"%s\"\n", varname, value); 175 } 176 } 177 178 static void 179 quote(const char *v) 180 { 181 if(v==NULL) 182 printf("\n"); 183 else 184 printf("%s\n", v); 185 } 186 187 static void 188 quotepath(nsd_options_type* opt, int final, const char *f) 189 { 190 const char* chr = opt->chroot; 191 #ifdef CHROOTDIR 192 if(chr == 0) chr = CHROOTDIR; 193 #endif 194 if(f == 0 || f[0] == '/' || !final || !chr || chr[0]==0) { 195 quote(f); 196 return; 197 } 198 /* chroot has had trailing slash applied in check part of checkconf */ 199 printf("%s%s\n", chr, f); 200 } 201 202 static void 203 quote_acl(acl_options_type* acl) 204 { 205 while(acl) 206 { 207 if (acl->tls_auth_name) 208 printf("%s %s %s\n", acl->ip_address_spec, 209 acl->nokey?"NOKEY":(acl->blocked?"BLOCKED": 210 (acl->key_name?acl->key_name:"(null)")), 211 acl->tls_auth_name?acl->tls_auth_name:""); 212 else 213 printf("%s %s\n", acl->ip_address_spec, 214 acl->nokey?"NOKEY":(acl->blocked?"BLOCKED": 215 (acl->key_name?acl->key_name:"(null)"))); 216 acl=acl->next; 217 } 218 } 219 220 static void 221 print_acl(const char* varname, acl_options_type* acl) 222 { 223 while(acl) 224 { 225 printf("\t%s ", varname); 226 if(acl->use_axfr_only) 227 printf("AXFR "); 228 if(acl->allow_udp) 229 printf("UDP "); 230 if (acl->tls_auth_name) 231 printf("%s %s %s\n", acl->ip_address_spec, 232 acl->nokey?"NOKEY":(acl->blocked?"BLOCKED": 233 (acl->key_name?acl->key_name:"(null)")), 234 acl->tls_auth_name?acl->tls_auth_name:""); 235 else 236 printf("%s %s\n", acl->ip_address_spec, 237 acl->nokey?"NOKEY":(acl->blocked?"BLOCKED": 238 (acl->key_name?acl->key_name:"(null)"))); 239 if(verbosity>1) { 240 printf("\t# %s", acl->is_ipv6?"ip6":"ip4"); 241 if(acl->port == 0) printf(" noport"); 242 else printf(" port=%d", acl->port); 243 if(acl->rangetype == acl_range_single) printf(" single"); 244 if(acl->rangetype == acl_range_mask) printf(" masked"); 245 if(acl->rangetype == acl_range_subnet) printf(" subnet"); 246 if(acl->rangetype == acl_range_minmax) printf(" minmax"); 247 if(acl->is_ipv6) { 248 #ifdef INET6 249 char dest[128]; 250 inet_ntop(AF_INET6, &acl->addr.addr6, dest, sizeof(dest)); 251 printf(" addr=%s", dest); 252 if(acl->rangetype != acl_range_single) { 253 inet_ntop(AF_INET6, &acl->range_mask.addr6, dest, sizeof(dest)); 254 printf(" rangemask=%s", dest); 255 } 256 #else 257 printf(" ip6addr-noip6defined"); 258 #endif 259 } else { 260 char dest[128]; 261 inet_ntop(AF_INET, &acl->addr.addr, dest, sizeof(dest)); 262 printf(" addr=%s", dest); 263 if(acl->rangetype != acl_range_single) { 264 inet_ntop(AF_INET, &acl->range_mask.addr, dest, sizeof(dest)); 265 printf(" rangemask=%s", dest); 266 } 267 } 268 printf("\n"); 269 } 270 acl=acl->next; 271 } 272 } 273 274 static void 275 print_acl_ips(const char* varname, acl_options_type* acl) 276 { 277 while(acl) 278 { 279 printf("\t%s %s\n", varname, acl->ip_address_spec); 280 acl=acl->next; 281 } 282 } 283 284 void 285 config_print_zone(nsd_options_type* opt, const char* k, int s, const char *o, 286 const char *z, const char* pat, const char* tls, int final) 287 { 288 ip_address_option_type* ip; 289 290 if (k) { 291 /* find key */ 292 key_options_type* key = key_options_find(opt, k); 293 if(key) { 294 if (s) { 295 quote(key->secret); 296 } else { 297 quote(key->algorithm); 298 } 299 return; 300 } 301 printf("Could not find key %s\n", k); 302 return; 303 } 304 305 if (tls) { 306 /* find tlsauth */ 307 tls_auth_options_type* tlsauth = tls_auth_options_find(opt, tls); 308 if(tlsauth) { 309 quote(tlsauth->auth_domain_name); 310 return; 311 } 312 printf("Could not find tls-auth %s\n", tls); 313 return; 314 } 315 316 if (!o) { 317 return; 318 } 319 320 if (z) { 321 zone_options_type* zone; 322 const dname_type *dname = dname_parse(opt->region, z); 323 if(!dname) { 324 printf("Could not parse zone name %s\n", z); 325 exit(1); 326 } 327 zone = zone_options_find(opt, dname); 328 if(!zone) { 329 printf("Zone does not exist: %s\n", z); 330 exit(1); 331 } 332 ZONE_GET_STR(name, o, zone); 333 if(strcasecmp("pattern", o)==0) { 334 quote(zone->pattern->pname); 335 return; 336 } 337 ZONE_GET_BIN(part_of_config, o, zone); 338 ZONE_GET_PATH(final, zonefile, o, zone->pattern); 339 ZONE_GET_ACL(allow_query, o, zone->pattern); 340 ZONE_GET_ACL(request_xfr, o, zone->pattern); 341 ZONE_GET_ACL(provide_xfr, o, zone->pattern); 342 ZONE_GET_ACL(allow_notify, o, zone->pattern); 343 ZONE_GET_ACL(notify, o, zone->pattern); 344 ZONE_GET_BIN(notify_retry, o, zone->pattern); 345 ZONE_GET_STR(zonestats, o, zone->pattern); 346 ZONE_GET_OUTGOING(outgoing_interface, o, zone->pattern); 347 ZONE_GET_BIN(allow_axfr_fallback, o, zone->pattern); 348 ZONE_GET_INT(max_refresh_time, o, zone->pattern); 349 ZONE_GET_INT(min_refresh_time, o, zone->pattern); 350 ZONE_GET_INT(max_retry_time, o, zone->pattern); 351 ZONE_GET_INT(min_retry_time, o, zone->pattern); 352 ZONE_GET_INT(min_expire_time, o, zone->pattern); 353 ZONE_GET_INT(size_limit_xfr, o, zone->pattern); 354 #ifdef RATELIMIT 355 ZONE_GET_RRL(rrl_whitelist, o, zone->pattern); 356 #endif 357 ZONE_GET_BIN(multi_master_check, o, zone->pattern); 358 ZONE_GET_BIN(store_ixfr, o, zone->pattern); 359 ZONE_GET_INT(ixfr_size, o, zone->pattern); 360 ZONE_GET_INT(ixfr_number, o, zone->pattern); 361 ZONE_GET_BIN(create_ixfr, o, zone->pattern); 362 printf("Zone option not handled: %s %s\n", z, o); 363 exit(1); 364 } else if(pat) { 365 pattern_options_type* p = pattern_options_find(opt, pat); 366 if(!p) { 367 printf("Pattern does not exist: %s\n", pat); 368 exit(1); 369 } 370 if(strcasecmp("name", o)==0) { 371 quote(p->pname); 372 return; 373 } 374 ZONE_GET_STR(zonefile, o, p); 375 ZONE_GET_PATH(final, zonefile, o, p); 376 ZONE_GET_ACL(allow_query, o, p); 377 ZONE_GET_ACL(request_xfr, o, p); 378 ZONE_GET_ACL(provide_xfr, o, p); 379 ZONE_GET_ACL(allow_notify, o, p); 380 ZONE_GET_ACL(notify, o, p); 381 ZONE_GET_BIN(notify_retry, o, p); 382 ZONE_GET_STR(zonestats, o, p); 383 ZONE_GET_OUTGOING(outgoing_interface, o, p); 384 ZONE_GET_BIN(allow_axfr_fallback, o, p); 385 ZONE_GET_INT(max_refresh_time, o, p); 386 ZONE_GET_INT(min_refresh_time, o, p); 387 ZONE_GET_INT(max_retry_time, o, p); 388 ZONE_GET_INT(min_retry_time, o, p); 389 ZONE_GET_INT(min_expire_time, o, p); 390 ZONE_GET_INT(size_limit_xfr, o, p); 391 #ifdef RATELIMIT 392 ZONE_GET_RRL(rrl_whitelist, o, p); 393 #endif 394 ZONE_GET_BIN(multi_master_check, o, p); 395 ZONE_GET_BIN(store_ixfr, o, p); 396 ZONE_GET_INT(ixfr_size, o, p); 397 ZONE_GET_INT(ixfr_number, o, p); 398 ZONE_GET_BIN(create_ixfr, o, p); 399 printf("Pattern option not handled: %s %s\n", pat, o); 400 exit(1); 401 } else { 402 /* look in the server section */ 403 SERV_GET_IP(ip_address, ip_addresses, o); 404 /* bin */ 405 SERV_GET_BIN(ip_transparent, o); 406 SERV_GET_BIN(ip_freebind, o); 407 SERV_GET_BIN(debug_mode, o); 408 SERV_GET_BIN(do_ip4, o); 409 SERV_GET_BIN(do_ip6, o); 410 SERV_GET_BIN(reuseport, o); 411 SERV_GET_BIN(hide_version, o); 412 SERV_GET_BIN(hide_identity, o); 413 SERV_GET_BIN(drop_updates, o); 414 SERV_GET_BIN(zonefiles_check, o); 415 SERV_GET_BIN(log_time_ascii, o); 416 SERV_GET_BIN(round_robin, o); 417 SERV_GET_BIN(minimal_responses, o); 418 SERV_GET_BIN(confine_to_zone, o); 419 SERV_GET_BIN(refuse_any, o); 420 SERV_GET_BIN(tcp_reject_overflow, o); 421 SERV_GET_BIN(log_only_syslog, o); 422 /* str */ 423 SERV_GET_PATH(final, database, o); 424 SERV_GET_STR(identity, o); 425 SERV_GET_STR(version, o); 426 SERV_GET_STR(nsid, o); 427 SERV_GET_PATH(final, logfile, o); 428 SERV_GET_PATH(final, pidfile, o); 429 SERV_GET_STR(chroot, o); 430 SERV_GET_STR(username, o); 431 SERV_GET_PATH(final, zonesdir, o); 432 SERV_GET_PATH(final, xfrdfile, o); 433 SERV_GET_PATH(final, xfrdir, o); 434 SERV_GET_PATH(final, zonelistfile, o); 435 SERV_GET_STR(port, o); 436 SERV_GET_STR(tls_service_key, o); 437 SERV_GET_STR(tls_service_ocsp, o); 438 SERV_GET_STR(tls_service_pem, o); 439 SERV_GET_STR(tls_port, o); 440 SERV_GET_STR(tls_cert_bundle, o); 441 SERV_GET_STR(cookie_secret, o); 442 SERV_GET_STR(cookie_secret_file, o); 443 SERV_GET_BIN(answer_cookie, o); 444 /* int */ 445 SERV_GET_INT(server_count, o); 446 SERV_GET_INT(tcp_count, o); 447 SERV_GET_INT(tcp_query_count, o); 448 SERV_GET_INT(tcp_timeout, o); 449 SERV_GET_INT(tcp_mss, o); 450 SERV_GET_INT(outgoing_tcp_mss, o); 451 SERV_GET_INT(xfrd_tcp_max, o); 452 SERV_GET_INT(xfrd_tcp_pipeline, o); 453 SERV_GET_INT(ipv4_edns_size, o); 454 SERV_GET_INT(ipv6_edns_size, o); 455 SERV_GET_INT(statistics, o); 456 SERV_GET_INT(xfrd_reload_timeout, o); 457 SERV_GET_INT(verbosity, o); 458 SERV_GET_INT(send_buffer_size, o); 459 SERV_GET_INT(receive_buffer_size, o); 460 #ifdef RATELIMIT 461 SERV_GET_INT(rrl_size, o); 462 SERV_GET_INT(rrl_ratelimit, o); 463 SERV_GET_INT(rrl_slip, o); 464 SERV_GET_INT(rrl_ipv4_prefix_length, o); 465 SERV_GET_INT(rrl_ipv6_prefix_length, o); 466 SERV_GET_INT(rrl_whitelist_ratelimit, o); 467 #endif 468 #ifdef USE_DNSTAP 469 SERV_GET_BIN(dnstap_enable, o); 470 SERV_GET_STR(dnstap_socket_path, o); 471 SERV_GET_BIN(dnstap_send_identity, o); 472 SERV_GET_BIN(dnstap_send_version, o); 473 SERV_GET_STR(dnstap_identity, o); 474 SERV_GET_STR(dnstap_version, o); 475 SERV_GET_BIN(dnstap_log_auth_query_messages, o); 476 SERV_GET_BIN(dnstap_log_auth_response_messages, o); 477 #endif 478 SERV_GET_INT(zonefiles_write, o); 479 /* remote control */ 480 SERV_GET_BIN(control_enable, o); 481 SERV_GET_IP(control_interface, control_interface, o); 482 SERV_GET_INT(control_port, o); 483 SERV_GET_STR(server_key_file, o); 484 SERV_GET_STR(server_cert_file, o); 485 SERV_GET_STR(control_key_file, o); 486 SERV_GET_STR(control_cert_file, o); 487 488 if(strcasecmp(o, "zones") == 0) { 489 zone_options_type* zone; 490 RBTREE_FOR(zone, zone_options_type*, opt->zone_options) 491 quote(zone->name); 492 return; 493 } 494 if(strcasecmp(o, "patterns") == 0) { 495 pattern_options_type* p; 496 RBTREE_FOR(p, pattern_options_type*, opt->patterns) 497 quote(p->pname); 498 return; 499 } 500 printf("Server option not handled: %s\n", o); 501 exit(1); 502 } 503 } 504 505 /* print zone content items */ 506 static void print_zone_content_elems(pattern_options_type* pat) 507 { 508 if(pat->zonefile) 509 print_string_var("zonefile:", pat->zonefile); 510 #ifdef RATELIMIT 511 zone_print_rrl_whitelist("\trrl-whitelist: ", pat->rrl_whitelist); 512 #endif 513 print_acl("allow_query:", pat->allow_query); 514 print_acl("allow-notify:", pat->allow_notify); 515 print_acl("request-xfr:", pat->request_xfr); 516 if(pat->multi_master_check) 517 printf("\tmulti-master-check: %s\n", pat->multi_master_check?"yes":"no"); 518 if(!pat->notify_retry_is_default) 519 printf("\tnotify-retry: %d\n", pat->notify_retry); 520 print_acl("notify:", pat->notify); 521 print_acl("provide-xfr:", pat->provide_xfr); 522 if(pat->zonestats) 523 print_string_var("zonestats:", pat->zonestats); 524 print_acl_ips("outgoing-interface:", pat->outgoing_interface); 525 if(!pat->allow_axfr_fallback_is_default) 526 printf("\tallow-axfr-fallback: %s\n", 527 pat->allow_axfr_fallback?"yes":"no"); 528 if(!pat->max_refresh_time_is_default) 529 printf("\tmax-refresh-time: %d\n", pat->max_refresh_time); 530 if(!pat->min_refresh_time_is_default) 531 printf("\tmin-refresh-time: %d\n", pat->min_refresh_time); 532 if(!pat->max_retry_time_is_default) 533 printf("\tmax-retry-time: %d\n", pat->max_retry_time); 534 if(!pat->min_retry_time_is_default) 535 printf("\tmin-retry-time: %d\n", pat->min_retry_time); 536 if(pat->min_expire_time_expr == REFRESHPLUSRETRYPLUS1) 537 printf("\tmin-expire-time: " REFRESHPLUSRETRYPLUS1_STR "\n"); 538 else if(pat->min_expire_time_expr == EXPIRE_TIME_HAS_VALUE) 539 printf("\tmin-expire-time: %d\n", pat->min_expire_time); 540 if(pat->size_limit_xfr != 0) 541 printf("\tsize-limit-xfr: %llu\n", 542 (long long unsigned)pat->size_limit_xfr); 543 if(!pat->store_ixfr_is_default) 544 printf("\tstore-ixfr: %s\n", pat->store_ixfr?"yes":"no"); 545 if(!pat->ixfr_number_is_default) 546 printf("\tixfr-number: %u\n", (unsigned)pat->ixfr_number); 547 if(!pat->ixfr_size_is_default) 548 printf("\tixfr-size: %u\n", (unsigned)pat->ixfr_size); 549 if(!pat->create_ixfr_is_default) 550 printf("\tcreate-ixfr: %s\n", pat->create_ixfr?"yes":"no"); 551 if(pat->verify_zone != VERIFY_ZONE_INHERIT) { 552 printf("\tverify-zone: "); 553 if(pat->verify_zone) { 554 printf("yes\n"); 555 } else { 556 printf("no\n"); 557 } 558 } 559 if(pat->verifier) { 560 printf("\tverifier:"); 561 for(char *const *s = pat->verifier; *s; s++) { 562 printf(" \"%s\"", *s); 563 } 564 printf("\n"); 565 } 566 if(pat->verifier_feed_zone != VERIFIER_FEED_ZONE_INHERIT) { 567 printf("\tverifier-feed-zone: "); 568 if(pat->verifier_feed_zone) { 569 printf("yes\n"); 570 } else { 571 printf("no\n"); 572 } 573 } 574 if(pat->verifier_timeout != VERIFIER_TIMEOUT_INHERIT) { 575 printf("\tverifier-timeout: %d\n", pat->verifier_timeout); 576 } 577 } 578 579 void 580 config_test_print_server(nsd_options_type* opt) 581 { 582 ip_address_option_type* ip; 583 key_options_type* key; 584 tls_auth_options_type* tlsauth; 585 zone_options_type* zone; 586 pattern_options_type* pat; 587 588 printf("# Config settings.\n"); 589 printf("server:\n"); 590 printf("\tdebug-mode: %s\n", opt->debug_mode?"yes":"no"); 591 printf("\tip-transparent: %s\n", opt->ip_transparent?"yes":"no"); 592 printf("\tip-freebind: %s\n", opt->ip_freebind?"yes":"no"); 593 printf("\treuseport: %s\n", opt->reuseport?"yes":"no"); 594 printf("\tdo-ip4: %s\n", opt->do_ip4?"yes":"no"); 595 printf("\tdo-ip6: %s\n", opt->do_ip6?"yes":"no"); 596 printf("\tsend-buffer-size: %d\n", opt->send_buffer_size); 597 printf("\treceive-buffer-size: %d\n", opt->receive_buffer_size); 598 printf("\thide-version: %s\n", opt->hide_version?"yes":"no"); 599 printf("\thide-identity: %s\n", opt->hide_identity?"yes":"no"); 600 printf("\tdrop-updates: %s\n", opt->drop_updates?"yes":"no"); 601 printf("\ttcp-reject-overflow: %s\n", 602 opt->tcp_reject_overflow ? "yes" : "no"); 603 print_string_var("database:", opt->database); 604 print_string_var("identity:", opt->identity); 605 print_string_var("version:", opt->version); 606 print_string_var("nsid:", opt->nsid); 607 print_string_var("logfile:", opt->logfile); 608 printf("\tlog-only-syslog: %s\n", opt->log_only_syslog?"yes":"no"); 609 printf("\tserver-count: %d\n", opt->server_count); 610 if(opt->cpu_affinity) { 611 cpu_option_type *n; 612 printf("\tcpu-affinity:"); 613 for(n = opt->cpu_affinity; n; n = n->next) { 614 printf(" %d", n->cpu); 615 } 616 printf("\n"); 617 } 618 if(opt->cpu_affinity && opt->service_cpu_affinity) { 619 cpu_map_option_type *n; 620 for(n = opt->service_cpu_affinity; n; n = n->next) { 621 if(n->service > 0) { 622 printf("\tserver-%d-cpu-affinity: %d\n", 623 n->service, n->cpu); 624 } else if(n->service == -1) { 625 printf("\txfrd-cpu-affinity: %d\n", 626 n->cpu); 627 } 628 } 629 } 630 printf("\ttcp-count: %d\n", opt->tcp_count); 631 printf("\ttcp-query-count: %d\n", opt->tcp_query_count); 632 printf("\ttcp-timeout: %d\n", opt->tcp_timeout); 633 printf("\ttcp-mss: %d\n", opt->tcp_mss); 634 printf("\toutgoing-tcp-mss: %d\n", opt->outgoing_tcp_mss); 635 printf("\txfrd-tcp-max: %d\n", opt->xfrd_tcp_max); 636 printf("\txfrd-tcp-pipeline: %d\n", opt->xfrd_tcp_pipeline); 637 printf("\tipv4-edns-size: %d\n", (int) opt->ipv4_edns_size); 638 printf("\tipv6-edns-size: %d\n", (int) opt->ipv6_edns_size); 639 print_string_var("pidfile:", opt->pidfile); 640 print_string_var("port:", opt->port); 641 printf("\tstatistics: %d\n", opt->statistics); 642 print_string_var("chroot:", opt->chroot); 643 print_string_var("username:", opt->username); 644 print_string_var("zonesdir:", opt->zonesdir); 645 print_string_var("xfrdfile:", opt->xfrdfile); 646 print_string_var("zonelistfile:", opt->zonelistfile); 647 print_string_var("xfrdir:", opt->xfrdir); 648 printf("\txfrd-reload-timeout: %d\n", opt->xfrd_reload_timeout); 649 printf("\tlog-time-ascii: %s\n", opt->log_time_ascii?"yes":"no"); 650 printf("\tround-robin: %s\n", opt->round_robin?"yes":"no"); 651 printf("\tminimal-responses: %s\n", opt->minimal_responses?"yes":"no"); 652 printf("\tconfine-to-zone: %s\n", 653 opt->confine_to_zone ? "yes" : "no"); 654 printf("\trefuse-any: %s\n", opt->refuse_any?"yes":"no"); 655 printf("\tverbosity: %d\n", opt->verbosity); 656 for(ip = opt->ip_addresses; ip; ip=ip->next) 657 { 658 printf("\tip-address: %s", ip->address); 659 if(ip->servers) { 660 const char *sep; 661 struct range_option *n; 662 printf(" servers=\""); 663 for(n=ip->servers, sep=""; n; n = n->next, sep=" ") { 664 if(n->first == n->last) { 665 printf("%s%d", sep, n->first); 666 } else { 667 printf("%s%d-%d", sep, n->first, n->last); 668 } 669 } 670 printf("\""); 671 } 672 if(ip->fib != -1) { 673 printf(" setfib=%d", ip->fib); 674 } 675 printf("\n"); 676 } 677 #ifdef RATELIMIT 678 printf("\trrl-size: %d\n", (int)opt->rrl_size); 679 printf("\trrl-ratelimit: %d\n", (int)opt->rrl_ratelimit); 680 printf("\trrl-slip: %d\n", (int)opt->rrl_slip); 681 printf("\trrl-ipv4-prefix-length: %d\n", (int)opt->rrl_ipv4_prefix_length); 682 printf("\trrl-ipv6-prefix-length: %d\n", (int)opt->rrl_ipv6_prefix_length); 683 printf("\trrl-whitelist-ratelimit: %d\n", (int)opt->rrl_whitelist_ratelimit); 684 #endif 685 printf("\tzonefiles-check: %s\n", opt->zonefiles_check?"yes":"no"); 686 printf("\tzonefiles-write: %d\n", opt->zonefiles_write); 687 print_string_var("tls-service-key:", opt->tls_service_key); 688 print_string_var("tls-service-pem:", opt->tls_service_pem); 689 print_string_var("tls-service-ocsp:", opt->tls_service_ocsp); 690 print_string_var("tls-port:", opt->tls_port); 691 print_string_var("tls-cert-bundle:", opt->tls_cert_bundle); 692 printf("\tanswer-cookie: %s\n", opt->answer_cookie?"yes":"no"); 693 if (opt->cookie_secret) 694 print_string_var("cookie-secret:", opt->cookie_secret); 695 if (opt->cookie_secret_file) 696 print_string_var("cookie-secret-file:", opt->cookie_secret_file); 697 698 #ifdef USE_DNSTAP 699 printf("\ndnstap:\n"); 700 printf("\tdnstap-enable: %s\n", opt->dnstap_enable?"yes":"no"); 701 print_string_var("dnstap-socket-path:", opt->dnstap_socket_path); 702 printf("\tdnstap-send-identity: %s\n", opt->dnstap_send_identity?"yes":"no"); 703 printf("\tdnstap-send-version: %s\n", opt->dnstap_send_version?"yes":"no"); 704 print_string_var("dnstap-identity:", opt->dnstap_identity); 705 print_string_var("dnstap-version:", opt->dnstap_version); 706 printf("\tdnstap-log-auth-query-messages: %s\n", opt->dnstap_log_auth_query_messages?"yes":"no"); 707 printf("\tdnstap-log-auth-response-messages: %s\n", opt->dnstap_log_auth_response_messages?"yes":"no"); 708 #endif 709 710 printf("\nremote-control:\n"); 711 printf("\tcontrol-enable: %s\n", opt->control_enable?"yes":"no"); 712 for(ip = opt->control_interface; ip; ip=ip->next) 713 print_string_var("control-interface:", ip->address); 714 printf("\tcontrol-port: %d\n", opt->control_port); 715 print_string_var("server-key-file:", opt->server_key_file); 716 print_string_var("server-cert-file:", opt->server_cert_file); 717 print_string_var("control-key-file:", opt->control_key_file); 718 print_string_var("control-cert-file:", opt->control_cert_file); 719 720 printf("\nverify:\n"); 721 printf("\tenable: %s\n", opt->verify_enable?"yes":"no"); 722 for(ip = opt->verify_ip_addresses; ip; ip=ip->next) { 723 print_string_var("ip-address:", ip->address); 724 } 725 printf("\tport: %s\n", opt->verify_port); 726 printf("\tverify-zones: %s\n", opt->verify_zones?"yes":"no"); 727 if(opt->verifier) { 728 printf("\tverifier:"); 729 for(char **s = opt->verifier; *s; s++) { 730 printf(" \"%s\"", *s); 731 } 732 printf("\n"); 733 } 734 printf("\tverifier-count: %d\n", opt->verifier_count); 735 printf("\tverifier-feed-zone: %s\n", opt->verifier_feed_zone?"yes":"no"); 736 printf("\tverifier-timeout: %d\n", opt->verifier_timeout); 737 738 RBTREE_FOR(key, key_options_type*, opt->keys) 739 { 740 printf("\nkey:\n"); 741 print_string_var("name:", key->name); 742 print_string_var("algorithm:", key->algorithm); 743 print_string_var("secret:", key->secret); 744 } 745 RBTREE_FOR(tlsauth, tls_auth_options_type*, opt->tls_auths) 746 { 747 printf("\ntls-auth:\n"); 748 print_string_var("name:", tlsauth->name); 749 print_string_var("auth-domain-name:", tlsauth->auth_domain_name); 750 } 751 RBTREE_FOR(pat, pattern_options_type*, opt->patterns) 752 { 753 if(pat->implicit) continue; 754 printf("\npattern:\n"); 755 print_string_var("name:", pat->pname); 756 print_zone_content_elems(pat); 757 } 758 RBTREE_FOR(zone, zone_options_type*, opt->zone_options) 759 { 760 if(!zone->part_of_config) 761 continue; 762 printf("\nzone:\n"); 763 print_string_var("name:", zone->name); 764 print_zone_content_elems(zone->pattern); 765 } 766 } 767 768 static int 769 additional_checks(nsd_options_type* opt, const char* filename) 770 { 771 zone_options_type* zone; 772 int errors = 0; 773 774 RBTREE_FOR(zone, zone_options_type*, opt->zone_options) 775 { 776 const dname_type* dname = dname_parse(opt->region, zone->name); /* memory leak. */ 777 if(!dname) { 778 fprintf(stderr, "%s: cannot parse zone name syntax for zone %s.\n", filename, zone->name); 779 errors ++; 780 continue; 781 } 782 #ifndef ROOT_SERVER 783 /* Is it a root zone? Are we a root server then? Idiot proof. */ 784 if(dname->label_count == 1) { 785 fprintf(stderr, "%s: not configured as a root server.\n", filename); 786 errors ++; 787 } 788 #endif 789 if(zone->pattern->allow_notify && !zone->pattern->request_xfr) { 790 fprintf(stderr, "%s: zone %s has allow-notify but no request-xfr" 791 " items. Where can it get a zone transfer when a notify " 792 "is received?\n", filename, zone->name); 793 errors ++; 794 } 795 if(!zone_is_slave(zone) && (!zone->pattern->zonefile || 796 zone->pattern->zonefile[0] == 0)) { 797 fprintf(stderr, "%s: zone %s is a master zone but has " 798 "no zonefile. Where can the data come from?\n", 799 filename, zone->name); 800 errors ++; 801 } 802 } 803 804 #ifndef BIND8_STATS 805 if(opt->statistics > 0) 806 { 807 fprintf(stderr, "%s: 'statistics: %d' but BIND 8 statistics feature not enabled.\n", 808 filename, opt->statistics); 809 errors ++; 810 } 811 #endif 812 #ifndef HAVE_CHROOT 813 if(opt->chroot != 0) 814 { 815 fprintf(stderr, "%s: chroot %s given. chroot not supported on this platform.\n", 816 filename, opt->chroot); 817 errors ++; 818 } 819 #endif 820 if (opt->identity && strlen(opt->identity) > UCHAR_MAX) { 821 fprintf(stderr, "%s: server identity too long (%u characters)\n", 822 filename, (unsigned) strlen(opt->identity)); 823 errors ++; 824 } 825 if (opt->version && strlen(opt->version) > UCHAR_MAX) { 826 fprintf(stderr, "%s: server version too long (%u characters)\n", 827 filename, (unsigned) strlen(opt->version)); 828 errors ++; 829 } 830 831 /* not done here: parsing of ip-address. parsing of username. */ 832 833 if (opt->chroot && opt->chroot[0]) { 834 /* append trailing slash for strncmp checking */ 835 append_trailing_slash(&opt->chroot, opt->region); 836 append_trailing_slash(&opt->xfrdir, opt->region); 837 append_trailing_slash(&opt->zonesdir, opt->region); 838 839 /* zonesdir must be absolute and within chroot, 840 * all other pathnames may be relative to zonesdir */ 841 if (strncmp(opt->zonesdir, opt->chroot, strlen(opt->chroot)) != 0) { 842 fprintf(stderr, "%s: zonesdir %s has to be an absolute path that starts with the chroot path %s\n", 843 filename, opt->zonesdir, opt->chroot); 844 errors ++; 845 } 846 if (!file_inside_chroot(opt->pidfile, opt->chroot)) { 847 fprintf(stderr, "%s: pidfile %s is not relative to chroot %s.\n", 848 filename, opt->pidfile, opt->chroot); 849 errors ++; 850 } 851 if (!file_inside_chroot(opt->database, opt->chroot)) { 852 fprintf(stderr, "%s: database %s is not relative to chroot %s.\n", 853 filename, opt->database, opt->chroot); 854 errors ++; 855 } 856 if (!file_inside_chroot(opt->xfrdfile, opt->chroot)) { 857 fprintf(stderr, "%s: xfrdfile %s is not relative to chroot %s.\n", 858 filename, opt->xfrdfile, opt->chroot); 859 errors ++; 860 } 861 if (!file_inside_chroot(opt->zonelistfile, opt->chroot)) { 862 fprintf(stderr, "%s: zonelistfile %s is not relative to chroot %s.\n", 863 filename, opt->zonelistfile, opt->chroot); 864 errors ++; 865 } 866 if (!file_inside_chroot(opt->xfrdir, opt->chroot)) { 867 fprintf(stderr, "%s: xfrdir %s is not relative to chroot %s.\n", 868 filename, opt->xfrdir, opt->chroot); 869 errors ++; 870 } 871 } 872 873 if (atoi(opt->port) <= 0) { 874 fprintf(stderr, "%s: port number '%s' is not a positive number.\n", 875 filename, opt->port); 876 errors ++; 877 } 878 if(errors != 0) { 879 fprintf(stderr, "%s: %d semantic errors in %d zones, %d keys, %d tls-auth.\n", 880 filename, errors, (int)nsd_options_num_zones(opt), 881 (int)opt->keys->count, 882 (int)opt->tls_auths->count); 883 } 884 885 return (errors == 0); 886 } 887 888 int 889 main(int argc, char* argv[]) 890 { 891 int c; 892 int verbose = 0; 893 int key_sec = 0; 894 int final = 0; 895 const char * conf_opt = NULL; /* what option do you want? Can be NULL -> print all */ 896 const char * conf_zone = NULL; /* what zone are we talking about */ 897 const char * conf_key = NULL; /* what key is needed */ 898 const char * conf_tlsauth = NULL; /* what tls-auth is needed */ 899 const char * conf_pat = NULL; /* what pattern is talked about */ 900 const char* configfile; 901 nsd_options_type *options; 902 903 log_init("nsd-checkconf"); 904 905 /* Parse the command line... */ 906 while ((c = getopt(argc, argv, "vfho:a:p:s:z:t:")) != -1) { 907 switch (c) { 908 case 'v': 909 verbose = 1; 910 verbosity++; 911 break; 912 case 'o': 913 conf_opt = optarg; 914 break; 915 case 'f': 916 final = 1; 917 break; 918 case 'p': 919 conf_pat = optarg; 920 break; 921 case 'a': 922 if (conf_key) { 923 fprintf(stderr, "Error: cannot combine -a with -s or other -a.\n"); 924 exit(1); 925 } 926 conf_key = optarg; 927 break; 928 case 's': 929 if (conf_key) { 930 fprintf(stderr, "Error: cannot combine -s with -a or other -s.\n"); 931 exit(1); 932 } 933 conf_key = optarg; 934 key_sec = 1; 935 break; 936 case 't': 937 conf_tlsauth = optarg; 938 break; 939 case 'z': 940 conf_zone = optarg; 941 break; 942 case 'h': 943 default: 944 usage(); 945 }; 946 } 947 argc -= optind; 948 argv += optind; 949 if (argc == 0 || argc>=2) { 950 usage(); 951 } 952 configfile = argv[0]; 953 954 /* read config file */ 955 options = nsd_options_create(region_create(xalloc, free)); 956 tsig_init(options->region); 957 if (!parse_options_file(options, configfile, NULL, NULL) || 958 !additional_checks(options, configfile)) { 959 exit(2); 960 } 961 if (conf_opt || conf_key || conf_tlsauth) { 962 config_print_zone(options, conf_key, key_sec, 963 underscore(conf_opt), conf_zone, conf_pat, conf_tlsauth, final); 964 } else { 965 if (verbose) { 966 printf("# Read file %s: %d patterns, %d fixed-zones, " 967 "%d keys, %d tls-auth.\n", 968 configfile, 969 (int)options->patterns->count, 970 (int)nsd_options_num_zones(options), 971 (int)options->keys->count, 972 (int)options->tls_auths->count); 973 config_test_print_server(options); 974 } 975 } 976 return 0; 977 } 978