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 } 552 553 void 554 config_test_print_server(nsd_options_type* opt) 555 { 556 ip_address_option_type* ip; 557 key_options_type* key; 558 tls_auth_options_type* tlsauth; 559 zone_options_type* zone; 560 pattern_options_type* pat; 561 562 printf("# Config settings.\n"); 563 printf("server:\n"); 564 printf("\tdebug-mode: %s\n", opt->debug_mode?"yes":"no"); 565 printf("\tip-transparent: %s\n", opt->ip_transparent?"yes":"no"); 566 printf("\tip-freebind: %s\n", opt->ip_freebind?"yes":"no"); 567 printf("\treuseport: %s\n", opt->reuseport?"yes":"no"); 568 printf("\tdo-ip4: %s\n", opt->do_ip4?"yes":"no"); 569 printf("\tdo-ip6: %s\n", opt->do_ip6?"yes":"no"); 570 printf("\tsend-buffer-size: %d\n", opt->send_buffer_size); 571 printf("\treceive-buffer-size: %d\n", opt->receive_buffer_size); 572 printf("\thide-version: %s\n", opt->hide_version?"yes":"no"); 573 printf("\thide-identity: %s\n", opt->hide_identity?"yes":"no"); 574 printf("\tdrop-updates: %s\n", opt->drop_updates?"yes":"no"); 575 printf("\ttcp-reject-overflow: %s\n", 576 opt->tcp_reject_overflow ? "yes" : "no"); 577 print_string_var("database:", opt->database); 578 print_string_var("identity:", opt->identity); 579 print_string_var("version:", opt->version); 580 print_string_var("nsid:", opt->nsid); 581 print_string_var("logfile:", opt->logfile); 582 printf("\tlog-only-syslog: %s\n", opt->log_only_syslog?"yes":"no"); 583 printf("\tserver-count: %d\n", opt->server_count); 584 if(opt->cpu_affinity) { 585 cpu_option_type *n; 586 printf("\tcpu-affinity:"); 587 for(n = opt->cpu_affinity; n; n = n->next) { 588 printf(" %d", n->cpu); 589 } 590 printf("\n"); 591 } 592 if(opt->cpu_affinity && opt->service_cpu_affinity) { 593 cpu_map_option_type *n; 594 for(n = opt->service_cpu_affinity; n; n = n->next) { 595 if(n->service > 0) { 596 printf("\tserver-%d-cpu-affinity: %d\n", 597 n->service, n->cpu); 598 } else if(n->service == -1) { 599 printf("\txfrd-cpu-affinity: %d\n", 600 n->cpu); 601 } 602 } 603 } 604 printf("\ttcp-count: %d\n", opt->tcp_count); 605 printf("\ttcp-query-count: %d\n", opt->tcp_query_count); 606 printf("\ttcp-timeout: %d\n", opt->tcp_timeout); 607 printf("\ttcp-mss: %d\n", opt->tcp_mss); 608 printf("\toutgoing-tcp-mss: %d\n", opt->outgoing_tcp_mss); 609 printf("\txfrd-tcp-max: %d\n", opt->xfrd_tcp_max); 610 printf("\txfrd-tcp-pipeline: %d\n", opt->xfrd_tcp_pipeline); 611 printf("\tipv4-edns-size: %d\n", (int) opt->ipv4_edns_size); 612 printf("\tipv6-edns-size: %d\n", (int) opt->ipv6_edns_size); 613 print_string_var("pidfile:", opt->pidfile); 614 print_string_var("port:", opt->port); 615 printf("\tstatistics: %d\n", opt->statistics); 616 print_string_var("chroot:", opt->chroot); 617 print_string_var("username:", opt->username); 618 print_string_var("zonesdir:", opt->zonesdir); 619 print_string_var("xfrdfile:", opt->xfrdfile); 620 print_string_var("zonelistfile:", opt->zonelistfile); 621 print_string_var("xfrdir:", opt->xfrdir); 622 printf("\txfrd-reload-timeout: %d\n", opt->xfrd_reload_timeout); 623 printf("\tlog-time-ascii: %s\n", opt->log_time_ascii?"yes":"no"); 624 printf("\tround-robin: %s\n", opt->round_robin?"yes":"no"); 625 printf("\tminimal-responses: %s\n", opt->minimal_responses?"yes":"no"); 626 printf("\tconfine-to-zone: %s\n", 627 opt->confine_to_zone ? "yes" : "no"); 628 printf("\trefuse-any: %s\n", opt->refuse_any?"yes":"no"); 629 printf("\tverbosity: %d\n", opt->verbosity); 630 for(ip = opt->ip_addresses; ip; ip=ip->next) 631 { 632 printf("\tip-address: %s", ip->address); 633 if(ip->servers) { 634 const char *sep; 635 struct range_option *n; 636 printf(" servers=\""); 637 for(n=ip->servers, sep=""; n; n = n->next, sep=" ") { 638 if(n->first == n->last) { 639 printf("%s%d", sep, n->first); 640 } else { 641 printf("%s%d-%d", sep, n->first, n->last); 642 } 643 } 644 printf("\""); 645 } 646 if(ip->fib != -1) { 647 printf(" setfib=%d", ip->fib); 648 } 649 printf("\n"); 650 } 651 #ifdef RATELIMIT 652 printf("\trrl-size: %d\n", (int)opt->rrl_size); 653 printf("\trrl-ratelimit: %d\n", (int)opt->rrl_ratelimit); 654 printf("\trrl-slip: %d\n", (int)opt->rrl_slip); 655 printf("\trrl-ipv4-prefix-length: %d\n", (int)opt->rrl_ipv4_prefix_length); 656 printf("\trrl-ipv6-prefix-length: %d\n", (int)opt->rrl_ipv6_prefix_length); 657 printf("\trrl-whitelist-ratelimit: %d\n", (int)opt->rrl_whitelist_ratelimit); 658 #endif 659 printf("\tzonefiles-check: %s\n", opt->zonefiles_check?"yes":"no"); 660 printf("\tzonefiles-write: %d\n", opt->zonefiles_write); 661 print_string_var("tls-service-key:", opt->tls_service_key); 662 print_string_var("tls-service-pem:", opt->tls_service_pem); 663 print_string_var("tls-service-ocsp:", opt->tls_service_ocsp); 664 print_string_var("tls-port:", opt->tls_port); 665 print_string_var("tls-cert-bundle:", opt->tls_cert_bundle); 666 printf("\tanswer-cookie: %s\n", opt->answer_cookie?"yes":"no"); 667 if (opt->cookie_secret) 668 print_string_var("cookie-secret:", opt->cookie_secret); 669 if (opt->cookie_secret_file) 670 print_string_var("cookie-secret-file:", opt->cookie_secret_file); 671 672 #ifdef USE_DNSTAP 673 printf("\ndnstap:\n"); 674 printf("\tdnstap-enable: %s\n", opt->dnstap_enable?"yes":"no"); 675 print_string_var("dnstap-socket-path:", opt->dnstap_socket_path); 676 printf("\tdnstap-send-identity: %s\n", opt->dnstap_send_identity?"yes":"no"); 677 printf("\tdnstap-send-version: %s\n", opt->dnstap_send_version?"yes":"no"); 678 print_string_var("dnstap-identity:", opt->dnstap_identity); 679 print_string_var("dnstap-version:", opt->dnstap_version); 680 printf("\tdnstap-log-auth-query-messages: %s\n", opt->dnstap_log_auth_query_messages?"yes":"no"); 681 printf("\tdnstap-log-auth-response-messages: %s\n", opt->dnstap_log_auth_response_messages?"yes":"no"); 682 #endif 683 684 printf("\nremote-control:\n"); 685 printf("\tcontrol-enable: %s\n", opt->control_enable?"yes":"no"); 686 for(ip = opt->control_interface; ip; ip=ip->next) 687 print_string_var("control-interface:", ip->address); 688 printf("\tcontrol-port: %d\n", opt->control_port); 689 print_string_var("server-key-file:", opt->server_key_file); 690 print_string_var("server-cert-file:", opt->server_cert_file); 691 print_string_var("control-key-file:", opt->control_key_file); 692 print_string_var("control-cert-file:", opt->control_cert_file); 693 694 RBTREE_FOR(key, key_options_type*, opt->keys) 695 { 696 printf("\nkey:\n"); 697 print_string_var("name:", key->name); 698 print_string_var("algorithm:", key->algorithm); 699 print_string_var("secret:", key->secret); 700 } 701 RBTREE_FOR(tlsauth, tls_auth_options_type*, opt->tls_auths) 702 { 703 printf("\ntls-auth:\n"); 704 print_string_var("name:", tlsauth->name); 705 print_string_var("auth-domain-name:", tlsauth->auth_domain_name); 706 } 707 RBTREE_FOR(pat, pattern_options_type*, opt->patterns) 708 { 709 if(pat->implicit) continue; 710 printf("\npattern:\n"); 711 print_string_var("name:", pat->pname); 712 print_zone_content_elems(pat); 713 } 714 RBTREE_FOR(zone, zone_options_type*, opt->zone_options) 715 { 716 if(!zone->part_of_config) 717 continue; 718 printf("\nzone:\n"); 719 print_string_var("name:", zone->name); 720 print_zone_content_elems(zone->pattern); 721 } 722 } 723 724 static int 725 additional_checks(nsd_options_type* opt, const char* filename) 726 { 727 zone_options_type* zone; 728 int errors = 0; 729 730 RBTREE_FOR(zone, zone_options_type*, opt->zone_options) 731 { 732 const dname_type* dname = dname_parse(opt->region, zone->name); /* memory leak. */ 733 if(!dname) { 734 fprintf(stderr, "%s: cannot parse zone name syntax for zone %s.\n", filename, zone->name); 735 errors ++; 736 continue; 737 } 738 #ifndef ROOT_SERVER 739 /* Is it a root zone? Are we a root server then? Idiot proof. */ 740 if(dname->label_count == 1) { 741 fprintf(stderr, "%s: not configured as a root server.\n", filename); 742 errors ++; 743 } 744 #endif 745 if(zone->pattern->allow_notify && !zone->pattern->request_xfr) { 746 fprintf(stderr, "%s: zone %s has allow-notify but no request-xfr" 747 " items. Where can it get a zone transfer when a notify " 748 "is received?\n", filename, zone->name); 749 errors ++; 750 } 751 if(!zone_is_slave(zone) && (!zone->pattern->zonefile || 752 zone->pattern->zonefile[0] == 0)) { 753 fprintf(stderr, "%s: zone %s is a master zone but has " 754 "no zonefile. Where can the data come from?\n", 755 filename, zone->name); 756 errors ++; 757 } 758 } 759 760 #ifndef BIND8_STATS 761 if(opt->statistics > 0) 762 { 763 fprintf(stderr, "%s: 'statistics: %d' but BIND 8 statistics feature not enabled.\n", 764 filename, opt->statistics); 765 errors ++; 766 } 767 #endif 768 #ifndef HAVE_CHROOT 769 if(opt->chroot != 0) 770 { 771 fprintf(stderr, "%s: chroot %s given. chroot not supported on this platform.\n", 772 filename, opt->chroot); 773 errors ++; 774 } 775 #endif 776 if (opt->identity && strlen(opt->identity) > UCHAR_MAX) { 777 fprintf(stderr, "%s: server identity too long (%u characters)\n", 778 filename, (unsigned) strlen(opt->identity)); 779 errors ++; 780 } 781 if (opt->version && strlen(opt->version) > UCHAR_MAX) { 782 fprintf(stderr, "%s: server version too long (%u characters)\n", 783 filename, (unsigned) strlen(opt->version)); 784 errors ++; 785 } 786 787 /* not done here: parsing of ip-address. parsing of username. */ 788 789 if (opt->chroot && opt->chroot[0]) { 790 /* append trailing slash for strncmp checking */ 791 append_trailing_slash(&opt->chroot, opt->region); 792 append_trailing_slash(&opt->xfrdir, opt->region); 793 append_trailing_slash(&opt->zonesdir, opt->region); 794 795 /* zonesdir must be absolute and within chroot, 796 * all other pathnames may be relative to zonesdir */ 797 if (strncmp(opt->zonesdir, opt->chroot, strlen(opt->chroot)) != 0) { 798 fprintf(stderr, "%s: zonesdir %s has to be an absolute path that starts with the chroot path %s\n", 799 filename, opt->zonesdir, opt->chroot); 800 errors ++; 801 } 802 if (!file_inside_chroot(opt->pidfile, opt->chroot)) { 803 fprintf(stderr, "%s: pidfile %s is not relative to chroot %s.\n", 804 filename, opt->pidfile, opt->chroot); 805 errors ++; 806 } 807 if (!file_inside_chroot(opt->database, opt->chroot)) { 808 fprintf(stderr, "%s: database %s is not relative to chroot %s.\n", 809 filename, opt->database, opt->chroot); 810 errors ++; 811 } 812 if (!file_inside_chroot(opt->xfrdfile, opt->chroot)) { 813 fprintf(stderr, "%s: xfrdfile %s is not relative to chroot %s.\n", 814 filename, opt->xfrdfile, opt->chroot); 815 errors ++; 816 } 817 if (!file_inside_chroot(opt->zonelistfile, opt->chroot)) { 818 fprintf(stderr, "%s: zonelistfile %s is not relative to chroot %s.\n", 819 filename, opt->zonelistfile, opt->chroot); 820 errors ++; 821 } 822 if (!file_inside_chroot(opt->xfrdir, opt->chroot)) { 823 fprintf(stderr, "%s: xfrdir %s is not relative to chroot %s.\n", 824 filename, opt->xfrdir, opt->chroot); 825 errors ++; 826 } 827 } 828 829 if (atoi(opt->port) <= 0) { 830 fprintf(stderr, "%s: port number '%s' is not a positive number.\n", 831 filename, opt->port); 832 errors ++; 833 } 834 if(errors != 0) { 835 fprintf(stderr, "%s: %d semantic errors in %d zones, %d keys, %d tls-auth.\n", 836 filename, errors, (int)nsd_options_num_zones(opt), 837 (int)opt->keys->count, 838 (int)opt->tls_auths->count); 839 } 840 841 return (errors == 0); 842 } 843 844 int 845 main(int argc, char* argv[]) 846 { 847 int c; 848 int verbose = 0; 849 int key_sec = 0; 850 int final = 0; 851 const char * conf_opt = NULL; /* what option do you want? Can be NULL -> print all */ 852 const char * conf_zone = NULL; /* what zone are we talking about */ 853 const char * conf_key = NULL; /* what key is needed */ 854 const char * conf_tlsauth = NULL; /* what tls-auth is needed */ 855 const char * conf_pat = NULL; /* what pattern is talked about */ 856 const char* configfile; 857 nsd_options_type *options; 858 859 log_init("nsd-checkconf"); 860 861 /* Parse the command line... */ 862 while ((c = getopt(argc, argv, "vfho:a:p:s:z:t:")) != -1) { 863 switch (c) { 864 case 'v': 865 verbose = 1; 866 verbosity++; 867 break; 868 case 'o': 869 conf_opt = optarg; 870 break; 871 case 'f': 872 final = 1; 873 break; 874 case 'p': 875 conf_pat = optarg; 876 break; 877 case 'a': 878 if (conf_key) { 879 fprintf(stderr, "Error: cannot combine -a with -s or other -a.\n"); 880 exit(1); 881 } 882 conf_key = optarg; 883 break; 884 case 's': 885 if (conf_key) { 886 fprintf(stderr, "Error: cannot combine -s with -a or other -s.\n"); 887 exit(1); 888 } 889 conf_key = optarg; 890 key_sec = 1; 891 break; 892 case 't': 893 conf_tlsauth = optarg; 894 break; 895 case 'z': 896 conf_zone = optarg; 897 break; 898 case 'h': 899 default: 900 usage(); 901 }; 902 } 903 argc -= optind; 904 argv += optind; 905 if (argc == 0 || argc>=2) { 906 usage(); 907 } 908 configfile = argv[0]; 909 910 /* read config file */ 911 options = nsd_options_create(region_create(xalloc, free)); 912 tsig_init(options->region); 913 if (!parse_options_file(options, configfile, NULL, NULL) || 914 !additional_checks(options, configfile)) { 915 exit(2); 916 } 917 if (conf_opt || conf_key || conf_tlsauth) { 918 config_print_zone(options, conf_key, key_sec, 919 underscore(conf_opt), conf_zone, conf_pat, conf_tlsauth, final); 920 } else { 921 if (verbose) { 922 printf("# Read file %s: %d patterns, %d fixed-zones, " 923 "%d keys, %d tls-auth.\n", 924 configfile, 925 (int)options->patterns->count, 926 (int)nsd_options_num_zones(options), 927 (int)options->keys->count, 928 (int)options->tls_auths->count); 929 config_test_print_server(options); 930 } 931 } 932 return 0; 933 } 934