contrib/bind-9.3/bin/named/config.c

   1 /*
   2  * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 2001-2003  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  10  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  11  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  12  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  13  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  14  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  15  * PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 /* $Id: config.c,v 1.11.2.4.8.29 2004/10/05 02:52:26 marka Exp $ */
  19
  20 #include <config.h>
  21
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include <isc/buffer.h>
  26 #include <isc/log.h>
  27 #include <isc/mem.h>
  28 #include <isc/region.h>
  29 #include <isc/result.h>
  30 #include <isc/sockaddr.h>
  31 #include <isc/util.h>
  32
  33 #include <isccfg/namedconf.h>
  34
  35 #include <dns/fixedname.h>
  36 #include <dns/name.h>
  37 #include <dns/rdataclass.h>
  38 #include <dns/rdatatype.h>
  39 #include <dns/tsig.h>
  40 #include <dns/zone.h>
  41
  42 #include <named/config.h>
  43 #include <named/globals.h>
  44
  45 static char defaultconf[] = "\
  46 options {\n\
  47 #       blackhole {none;};\n"
  48 #ifndef WIN32
  49 "       coresize default;\n\
  50         datasize default;\n\
  51         files default;\n\
  52         stacksize default;\n"
  53 #endif
  54 "       deallocate-on-exit true;\n\
  55 #       directory <none>\n\
  56         dump-file \"named_dump.db\";\n\
  57         fake-iquery no;\n\
  58         has-old-clients false;\n\
  59         heartbeat-interval 60;\n\
  60         host-statistics no;\n\
  61         interface-interval 60;\n\
  62         listen-on {any;};\n\
  63         listen-on-v6 {none;};\n\
  64         match-mapped-addresses no;\n\
  65         memstatistics-file \"named.memstats\";\n\
  66         multiple-cnames no;\n\
  67 #       named-xfer <obsolete>;\n\
  68 #       pid-file \"" NS_LOCALSTATEDIR "/named.pid\"; /* or /lwresd.pid */\n\
  69         port 53;\n\
  70         recursing-file \"named.recursing\";\n\
  71 "
  72 #ifdef PATH_RANDOMDEV
  73 "\
  74         random-device \"" PATH_RANDOMDEV "\";\n\
  75 "
  76 #endif
  77 "\
  78         recursive-clients 1000;\n\
  79         rrset-order {order cyclic;};\n\
  80         serial-queries 20;\n\
  81         serial-query-rate 20;\n\
  82         server-id none;\n\
  83         statistics-file \"named.stats\";\n\
  84         statistics-interval 60;\n\
  85         tcp-clients 100;\n\
  86         tcp-listen-queue 3;\n\
  87 #       tkey-dhkey <none>\n\
  88 #       tkey-gssapi-credential <none>\n\
  89 #       tkey-domain <none>\n\
  90         transfers-per-ns 2;\n\
  91         transfers-in 10;\n\
  92         transfers-out 10;\n\
  93         treat-cr-as-space true;\n\
  94         use-id-pool true;\n\
  95         use-ixfr true;\n\
  96         edns-udp-size 4096;\n\
  97 \n\
  98         /* view */\n\
  99         allow-notify {none;};\n\
 100         allow-update-forwarding {none;};\n\
 101         allow-recursion {any;};\n\
 102 #       allow-v6-synthesis <obsolete>;\n\
 103 #       sortlist <none>\n\
 104 #       topology <none>\n\
 105         auth-nxdomain false;\n\
 106         minimal-responses false;\n\
 107         recursion true;\n\
 108         provide-ixfr true;\n\
 109         request-ixfr true;\n\
 110         fetch-glue no;\n\
 111         rfc2308-type1 no;\n\
 112         additional-from-auth true;\n\
 113         additional-from-cache true;\n\
 114         query-source address *;\n\
 115         query-source-v6 address *;\n\
 116         notify-source *;\n\
 117         notify-source-v6 *;\n\
 118         cleaning-interval 60;\n\
 119         min-roots 2;\n\
 120         lame-ttl 600;\n\
 121         max-ncache-ttl 10800; /* 3 hours */\n\
 122         max-cache-ttl 604800; /* 1 week */\n\
 123         transfer-format many-answers;\n\
 124         max-cache-size 0;\n\
 125         check-names master fail;\n\
 126         check-names slave warn;\n\
 127         check-names response ignore;\n\
 128         dnssec-enable no; /* Make yes for 9.4. */ \n\
 129 "
 130
 131 "       /* zone */\n\
 132         allow-query {any;};\n\
 133         allow-transfer {any;};\n\
 134         notify yes;\n\
 135 #       also-notify <none>\n\
 136         dialup no;\n\
 137 #       forward <none>\n\
 138 #       forwarders <none>\n\
 139         maintain-ixfr-base no;\n\
 140 #       max-ixfr-log-size <obsolete>\n\
 141         transfer-source *;\n\
 142         transfer-source-v6 *;\n\
 143         alt-transfer-source *;\n\
 144         alt-transfer-source-v6 *;\n\
 145         max-transfer-time-in 120;\n\
 146         max-transfer-time-out 120;\n\
 147         max-transfer-idle-in 60;\n\
 148         max-transfer-idle-out 60;\n\
 149         max-retry-time 1209600; /* 2 weeks */\n\
 150         min-retry-time 500;\n\
 151         max-refresh-time 2419200; /* 4 weeks */\n\
 152         min-refresh-time 300;\n\
 153         multi-master no;\n\
 154         sig-validity-interval 30; /* days */\n\
 155         zone-statistics false;\n\
 156         max-journal-size unlimited;\n\
 157         ixfr-from-differences false;\n\
 158 };\n\
 159 "
 160
 161 "#\n\
 162 #  Zones in the \"_bind\" view are NOT counted is the count of zones.\n\
 163 #\n\
 164 view \"_bind\" chaos {\n\
 165         recursion no;\n\
 166         notify no;\n\
 167 \n\
 168         zone \"version.bind\" chaos {\n\
 169                 type master;\n\
 170                 database \"_builtin version\";\n\
 171         };\n\
 172 \n\
 173         zone \"hostname.bind\" chaos {\n\
 174                 type master;\n\
 175                 database \"_builtin hostname\";\n\
 176         };\n\
 177 \n\
 178         zone \"authors.bind\" chaos {\n\
 179                 type master;\n\
 180                 database \"_builtin authors\";\n\
 181         };\n\
 182         zone \"id.server\" chaos {\n\
 183                 type master;\n\
 184                 database \"_builtin id\";\n\
 185         };\n\
 186 };\n\
 187 ";
 188
 189 isc_result_t
 190 ns_config_parsedefaults(cfg_parser_t *parser, cfg_obj_t **conf) {
 191         isc_buffer_t b;
 192
 193         isc_buffer_init(&b, defaultconf, sizeof(defaultconf) - 1);
 194         isc_buffer_add(&b, sizeof(defaultconf) - 1);
 195         return (cfg_parse_buffer(parser, &b, &cfg_type_namedconf, conf));
 196 }
 197
 198 isc_result_t
 199 ns_config_get(cfg_obj_t **maps, const char *name, cfg_obj_t **obj) {
 200         int i;
 201
 202         for (i = 0;; i++) {
 203                 if (maps[i] == NULL)
 204                         return (ISC_R_NOTFOUND);
 205                 if (cfg_map_get(maps[i], name, obj) == ISC_R_SUCCESS)
 206                         return (ISC_R_SUCCESS);
 207         }
 208 }
 209
 210 isc_result_t
 211 ns_checknames_get(cfg_obj_t **maps, const char *which, cfg_obj_t **obj) {
 212         cfg_listelt_t *element;
 213         cfg_obj_t *checknames;
 214         cfg_obj_t *type;
 215         cfg_obj_t *value;
 216         int i;
 217
 218         for (i = 0;; i++) {
 219                 if (maps[i] == NULL)
 220                         return (ISC_R_NOTFOUND);
 221                 checknames = NULL;
 222                 if (cfg_map_get(maps[i], "check-names", &checknames) == ISC_R_SUCCESS) {
 223                         /*
 224                          * Zone map entry is not a list.
 225                          */
 226                         if (checknames != NULL && !cfg_obj_islist(checknames)) {
 227                                 *obj = checknames;
 228                                 return (ISC_R_SUCCESS);
 229                         }
 230                         for (element = cfg_list_first(checknames);
 231                              element != NULL;
 232                              element = cfg_list_next(element)) {
 233                                 value = cfg_listelt_value(element);
 234                                 type = cfg_tuple_get(value, "type");
 235                                 if (strcasecmp(cfg_obj_asstring(type), which) == 0) {
 236                                         *obj = cfg_tuple_get(value, "mode");
 237                                         return (ISC_R_SUCCESS);
 238                                 }
 239                         }
 240
 241                 }
 242         }
 243 }
 244
 245 int
 246 ns_config_listcount(cfg_obj_t *list) {
 247         cfg_listelt_t *e;
 248         int i = 0;
 249
 250         for (e = cfg_list_first(list); e != NULL; e = cfg_list_next(e))
 251                 i++;
 252
 253         return (i);
 254 }
 255
 256 isc_result_t
 257 ns_config_getclass(cfg_obj_t *classobj, dns_rdataclass_t defclass,
 258                    dns_rdataclass_t *classp) {
 259         char *str;
 260         isc_textregion_t r;
 261         isc_result_t result;
 262
 263         if (!cfg_obj_isstring(classobj)) {
 264                 *classp = defclass;
 265                 return (ISC_R_SUCCESS);
 266         }
 267         str = cfg_obj_asstring(classobj);
 268         r.base = str;
 269         r.length = strlen(str);
 270         result = dns_rdataclass_fromtext(classp, &r);
 271         if (result != ISC_R_SUCCESS)
 272                 cfg_obj_log(classobj, ns_g_lctx, ISC_LOG_ERROR,
 273                             "unknown class '%s'", str);
 274         return (result);
 275 }
 276
 277 isc_result_t
 278 ns_config_gettype(cfg_obj_t *typeobj, dns_rdatatype_t deftype,
 279                    dns_rdatatype_t *typep) {
 280         char *str;
 281         isc_textregion_t r;
 282         isc_result_t result;
 283
 284         if (!cfg_obj_isstring(typeobj)) {
 285                 *typep = deftype;
 286                 return (ISC_R_SUCCESS);
 287         }
 288         str = cfg_obj_asstring(typeobj);
 289         r.base = str;
 290         r.length = strlen(str);
 291         result = dns_rdatatype_fromtext(typep, &r);
 292         if (result != ISC_R_SUCCESS)
 293                 cfg_obj_log(typeobj, ns_g_lctx, ISC_LOG_ERROR,
 294                             "unknown type '%s'", str);
 295         return (result);
 296 }
 297
 298 dns_zonetype_t
 299 ns_config_getzonetype(cfg_obj_t *zonetypeobj) {
 300         dns_zonetype_t ztype = dns_zone_none;
 301         char *str;
 302
 303         str = cfg_obj_asstring(zonetypeobj);
 304         if (strcasecmp(str, "master") == 0)
 305                 ztype = dns_zone_master;
 306         else if (strcasecmp(str, "slave") == 0)
 307                 ztype = dns_zone_slave;
 308         else if (strcasecmp(str, "stub") == 0)
 309                 ztype = dns_zone_stub;
 310         else
 311                 INSIST(0);
 312         return (ztype);
 313 }
 314
 315 isc_result_t
 316 ns_config_getiplist(cfg_obj_t *config, cfg_obj_t *list,
 317                     in_port_t defport, isc_mem_t *mctx,
 318                     isc_sockaddr_t **addrsp, isc_uint32_t *countp)
 319 {
 320         int count, i = 0;
 321         cfg_obj_t *addrlist;
 322         cfg_obj_t *portobj;
 323         cfg_listelt_t *element;
 324         isc_sockaddr_t *addrs;
 325         in_port_t port;
 326         isc_result_t result;
 327
 328         INSIST(addrsp != NULL && *addrsp == NULL);
 329         INSIST(countp != NULL);
 330
 331         addrlist = cfg_tuple_get(list, "addresses");
 332         count = ns_config_listcount(addrlist);
 333
 334         portobj = cfg_tuple_get(list, "port");
 335         if (cfg_obj_isuint32(portobj)) {
 336                 isc_uint32_t val = cfg_obj_asuint32(portobj);
 337                 if (val > ISC_UINT16_MAX) {
 338                         cfg_obj_log(portobj, ns_g_lctx, ISC_LOG_ERROR,
 339                                     "port '%u' out of range", val);
 340                         return (ISC_R_RANGE);
 341                 }
 342                 port = (in_port_t) val;
 343         } else if (defport != 0)
 344                 port = defport;
 345         else {
 346                 result = ns_config_getport(config, &port);
 347                 if (result != ISC_R_SUCCESS)
 348                         return (result);
 349         }
 350
 351         addrs = isc_mem_get(mctx, count * sizeof(isc_sockaddr_t));
 352         if (addrs == NULL)
 353                 return (ISC_R_NOMEMORY);
 354
 355         for (element = cfg_list_first(addrlist);
 356              element != NULL;
 357              element = cfg_list_next(element), i++)
 358         {
 359                 INSIST(i < count);
 360                 addrs[i] = *cfg_obj_assockaddr(cfg_listelt_value(element));
 361                 if (isc_sockaddr_getport(&addrs[i]) == 0)
 362                         isc_sockaddr_setport(&addrs[i], port);
 363         }
 364         INSIST(i == count);
 365
 366         *addrsp = addrs;
 367         *countp = count;
 368
 369         return (ISC_R_SUCCESS);
 370 }
 371
 372 void
 373 ns_config_putiplist(isc_mem_t *mctx, isc_sockaddr_t **addrsp,
 374                     isc_uint32_t count)
 375 {
 376         INSIST(addrsp != NULL && *addrsp != NULL);
 377
 378         isc_mem_put(mctx, *addrsp, count * sizeof(isc_sockaddr_t));
 379         *addrsp = NULL;
 380 }
 381
 382 static isc_result_t
 383 get_masters_def(cfg_obj_t *cctx, char *name, cfg_obj_t **ret) {
 384         isc_result_t result;
 385         cfg_obj_t *masters = NULL;
 386         cfg_listelt_t *elt;
 387
 388         result = cfg_map_get(cctx, "masters", &masters);
 389         if (result != ISC_R_SUCCESS)
 390                 return (result);
 391         for (elt = cfg_list_first(masters);
 392              elt != NULL;
 393              elt = cfg_list_next(elt)) {
 394                 cfg_obj_t *list;
 395                 const char *listname;
 396
 397                 list = cfg_listelt_value(elt);
 398                 listname = cfg_obj_asstring(cfg_tuple_get(list, "name"));
 399
 400                 if (strcasecmp(listname, name) == 0) {
 401                         *ret = list;
 402                         return (ISC_R_SUCCESS);
 403                 }
 404         }
 405         return (ISC_R_NOTFOUND);
 406 }
 407
 408 isc_result_t
 409 ns_config_getipandkeylist(cfg_obj_t *config, cfg_obj_t *list, isc_mem_t *mctx,
 410                           isc_sockaddr_t **addrsp, dns_name_t ***keysp,
 411                           isc_uint32_t *countp)
 412 {
 413         isc_uint32_t addrcount = 0, keycount = 0, i = 0;
 414         isc_uint32_t listcount = 0, l = 0, j;
 415         isc_uint32_t stackcount = 0, pushed = 0;
 416         isc_result_t result;
 417         cfg_listelt_t *element;
 418         cfg_obj_t *addrlist;
 419         cfg_obj_t *portobj;
 420         in_port_t port;
 421         dns_fixedname_t fname;
 422         isc_sockaddr_t *addrs = NULL;
 423         dns_name_t **keys = NULL;
 424         char **lists = NULL;
 425         struct {
 426                 cfg_listelt_t *element;
 427                 in_port_t port;
 428         } *stack = NULL;
 429
 430         REQUIRE(addrsp != NULL && *addrsp == NULL);
 431         REQUIRE(keysp != NULL && *keysp == NULL);
 432         REQUIRE(countp != NULL);
 433
 434  newlist:
 435         addrlist = cfg_tuple_get(list, "addresses");
 436         portobj = cfg_tuple_get(list, "port");
 437         if (cfg_obj_isuint32(portobj)) {
 438                 isc_uint32_t val = cfg_obj_asuint32(portobj);
 439                 if (val > ISC_UINT16_MAX) {
 440                         cfg_obj_log(portobj, ns_g_lctx, ISC_LOG_ERROR,
 441                                     "port '%u' out of range", val);
 442                         return (ISC_R_RANGE);
 443                 }
 444                 port = (in_port_t) val;
 445         } else {
 446                 result = ns_config_getport(config, &port);
 447                 if (result != ISC_R_SUCCESS)
 448                         return (result);
 449         }
 450
 451         result = ISC_R_NOMEMORY;
 452
 453         element = cfg_list_first(addrlist);
 454  resume:
 455         for ( ;
 456              element != NULL;
 457              element = cfg_list_next(element))
 458         {
 459                 cfg_obj_t *addr;
 460                 cfg_obj_t *key;
 461                 char *keystr;
 462                 isc_buffer_t b;
 463
 464                 addr = cfg_tuple_get(cfg_listelt_value(element),
 465                                      "masterselement");
 466                 key = cfg_tuple_get(cfg_listelt_value(element), "key");
 467
 468                 if (!cfg_obj_issockaddr(addr)) {
 469                         char *listname = cfg_obj_asstring(addr);
 470                         isc_result_t tresult;
 471
 472                         /* Grow lists? */
 473                         if (listcount == l) {
 474                                 void * new;
 475                                 isc_uint32_t newlen = listcount + 16;
 476                                 size_t newsize, oldsize;
 477
 478                                 newsize = newlen * sizeof(*lists);
 479                                 oldsize = listcount * sizeof(*lists);
 480                                 new = isc_mem_get(mctx, newsize);
 481                                 if (new == NULL)
 482                                         goto cleanup;
 483                                 if (listcount != 0) {
 484                                         memcpy(new, lists, oldsize);
 485                                         isc_mem_put(mctx, lists, oldsize);
 486                                 }
 487                                 lists = new;
 488                                 listcount = newlen;
 489                         }
 490                         /* Seen? */
 491                         for (j = 0; j < l; j++)
 492                                 if (strcasecmp(lists[j], listname) == 0)
 493                                         break;
 494                         if (j < l)
 495                                 continue;
 496                         tresult = get_masters_def(config, listname, &list);
 497                         if (tresult == ISC_R_NOTFOUND) {
 498                                 cfg_obj_log(addr, ns_g_lctx, ISC_LOG_ERROR,
 499                                     "masters \"%s\" not found", listname);
 500
 501                                 result = tresult;
 502                                 goto cleanup;
 503                         }
 504                         if (tresult != ISC_R_SUCCESS)
 505                                 goto cleanup;
 506                         lists[l++] = listname;
 507                         /* Grow stack? */
 508                         if (stackcount == pushed) {
 509                                 void * new;
 510                                 isc_uint32_t newlen = stackcount + 16;
 511                                 size_t newsize, oldsize;
 512
 513                                 newsize = newlen * sizeof(*stack);
 514                                 oldsize = stackcount * sizeof(*stack);
 515                                 new = isc_mem_get(mctx, newsize);
 516                                 if (new == NULL)
 517                                         goto cleanup;
 518                                 if (stackcount != 0) {
 519                                         memcpy(new, stack, oldsize);
 520                                         isc_mem_put(mctx, stack, oldsize);
 521                                 }
 522                                 stack = new;
 523                                 stackcount = newlen;
 524                         }
 525                         /*
 526                          * We want to resume processing this list on the
 527                          * next element.
 528                          */
 529                         stack[pushed].element = cfg_list_next(element);
 530                         stack[pushed].port = port;
 531                         pushed++;
 532                         goto newlist;
 533                 }
 534
 535                 if (i == addrcount) {
 536                         void * new;
 537                         isc_uint32_t newlen = addrcount + 16;
 538                         size_t newsize, oldsize;
 539
 540                         newsize = newlen * sizeof(isc_sockaddr_t);
 541                         oldsize = addrcount * sizeof(isc_sockaddr_t);
 542                         new = isc_mem_get(mctx, newsize);
 543                         if (new == NULL)
 544                                 goto cleanup;
 545                         if (addrcount != 0) {
 546                                 memcpy(new, addrs, oldsize);
 547                                 isc_mem_put(mctx, addrs, oldsize);
 548                         }
 549                         addrs = new;
 550                         addrcount = newlen;
 551
 552                         newsize = newlen * sizeof(dns_name_t *);
 553                         oldsize = keycount * sizeof(dns_name_t *);
 554                         new = isc_mem_get(mctx, newsize);
 555                         if (new == NULL)
 556                                 goto cleanup;
 557                         if (keycount != 0) {
 558                                 memcpy(new, keys, oldsize);
 559                                 isc_mem_put(mctx, keys, oldsize);
 560                         }
 561                         keys = new;
 562                         keycount = newlen;
 563                 }
 564
 565                 addrs[i] = *cfg_obj_assockaddr(addr);
 566                 if (isc_sockaddr_getport(&addrs[i]) == 0)
 567                         isc_sockaddr_setport(&addrs[i], port);
 568                 keys[i] = NULL;
 569                 if (!cfg_obj_isstring(key)) {
 570                         i++;
 571                         continue;
 572                 }
 573                 keys[i] = isc_mem_get(mctx, sizeof(dns_name_t));
 574                 if (keys[i] == NULL)
 575                         goto cleanup;
 576                 dns_name_init(keys[i], NULL);
 577
 578                 keystr = cfg_obj_asstring(key);
 579                 isc_buffer_init(&b, keystr, strlen(keystr));
 580                 isc_buffer_add(&b, strlen(keystr));
 581                 dns_fixedname_init(&fname);
 582                 result = dns_name_fromtext(dns_fixedname_name(&fname), &b,
 583                                            dns_rootname, ISC_FALSE, NULL);
 584                 if (result != ISC_R_SUCCESS)
 585                         goto cleanup;
 586                 result = dns_name_dup(dns_fixedname_name(&fname), mctx,
 587                                       keys[i]);
 588                 if (result != ISC_R_SUCCESS)
 589                         goto cleanup;
 590                 i++;
 591         }
 592         if (pushed != 0) {
 593                 pushed--;
 594                 element = stack[pushed].element;
 595                 port = stack[pushed].port;
 596                 goto resume;
 597         }
 598         if (i < addrcount) {
 599                 void * new;
 600                 size_t newsize, oldsize;
 601
 602                 newsize = i * sizeof(isc_sockaddr_t);
 603                 oldsize = addrcount * sizeof(isc_sockaddr_t);
 604                 if (i != 0) {
 605                         new = isc_mem_get(mctx, newsize);
 606                         if (new == NULL)
 607                                 goto cleanup;
 608                         memcpy(new, addrs, newsize);
 609                         isc_mem_put(mctx, addrs, oldsize);
 610                 } else
 611                         new = NULL;
 612                 addrs = new;
 613                 addrcount = i;
 614
 615                 newsize = i * sizeof(dns_name_t *);
 616                 oldsize = keycount * sizeof(dns_name_t *);
 617                 if (i != 0) {
 618                         new = isc_mem_get(mctx, newsize);
 619                         if (new == NULL)
 620                                 goto cleanup;
 621                         memcpy(new, keys,  newsize);
 622                         isc_mem_put(mctx, keys, oldsize);
 623                 } else
 624                         new = NULL;
 625                 keys = new;
 626                 keycount = i;
 627         }
 628
 629         if (lists != NULL)
 630                 isc_mem_put(mctx, lists, listcount * sizeof(*lists));
 631         if (stack != NULL)
 632                 isc_mem_put(mctx, stack, stackcount * sizeof(*stack));
 633
 634         INSIST(keycount == addrcount);
 635
 636         *addrsp = addrs;
 637         *keysp = keys;
 638         *countp = addrcount;
 639
 640         return (ISC_R_SUCCESS);
 641
 642  cleanup:
 643         if (addrs != NULL)
 644                 isc_mem_put(mctx, addrs, addrcount * sizeof(isc_sockaddr_t));
 645         if (keys != NULL) {
 646                 for (j = 0; j <= i; j++) {
 647                         if (keys[j] == NULL)
 648                                 continue;
 649                         if (dns_name_dynamic(keys[j]))
 650                                 dns_name_free(keys[j], mctx);
 651                         isc_mem_put(mctx, keys[j], sizeof(dns_name_t));
 652                 }
 653                 isc_mem_put(mctx, keys, keycount * sizeof(dns_name_t *));
 654         }
 655         if (lists != NULL)
 656                 isc_mem_put(mctx, lists, listcount * sizeof(*lists));
 657         if (stack != NULL)
 658                 isc_mem_put(mctx, stack, stackcount * sizeof(*stack));
 659         return (result);
 660 }
 661
 662 void
 663 ns_config_putipandkeylist(isc_mem_t *mctx, isc_sockaddr_t **addrsp,
 664                           dns_name_t ***keysp, isc_uint32_t count)
 665 {
 666         unsigned int i;
 667         dns_name_t **keys = *keysp;
 668
 669         INSIST(addrsp != NULL && *addrsp != NULL);
 670
 671         isc_mem_put(mctx, *addrsp, count * sizeof(isc_sockaddr_t));
 672         for (i = 0; i < count; i++) {
 673                 if (keys[i] == NULL)
 674                         continue;
 675                 if (dns_name_dynamic(keys[i]))
 676                         dns_name_free(keys[i], mctx);
 677                 isc_mem_put(mctx, keys[i], sizeof(dns_name_t));
 678         }
 679         isc_mem_put(mctx, *keysp, count * sizeof(dns_name_t *));
 680         *addrsp = NULL;
 681         *keysp = NULL;
 682 }
 683
 684 isc_result_t
 685 ns_config_getport(cfg_obj_t *config, in_port_t *portp) {
 686         cfg_obj_t *maps[3];
 687         cfg_obj_t *options = NULL;
 688         cfg_obj_t *portobj = NULL;
 689         isc_result_t result;
 690         int i;
 691
 692         (void)cfg_map_get(config, "options", &options);
 693         i = 0;
 694         if (options != NULL)
 695                 maps[i++] = options;
 696         maps[i++] = ns_g_defaults;
 697         maps[i] = NULL;
 698
 699         result = ns_config_get(maps, "port", &portobj);
 700         INSIST(result == ISC_R_SUCCESS);
 701         if (cfg_obj_asuint32(portobj) >= ISC_UINT16_MAX) {
 702                 cfg_obj_log(portobj, ns_g_lctx, ISC_LOG_ERROR,
 703                             "port '%u' out of range",
 704                             cfg_obj_asuint32(portobj));
 705                 return (ISC_R_RANGE);
 706         }
 707         *portp = (in_port_t)cfg_obj_asuint32(portobj);
 708         return (ISC_R_SUCCESS);
 709 }
 710
 711 isc_result_t
 712 ns_config_getkeyalgorithm(const char *str, dns_name_t **name)
 713 {
 714         if (strcasecmp(str, "hmac-md5") == 0 ||
 715             strcasecmp(str, "hmac-md5.sig-alg.reg.int") == 0 ||
 716             strcasecmp(str, "hmac-md5.sig-alg.reg.int.") == 0)
 717         {
 718                 if (name != NULL)
 719                         *name = dns_tsig_hmacmd5_name;
 720                 return (ISC_R_SUCCESS);
 721         }
 722         return (ISC_R_NOTFOUND);
 723 }