contrib/unbound/daemon/daemon.c

   1 /*
   2  * daemon/daemon.c - collection of workers that handles requests.
   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 LIMITED
  25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  26  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
  27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33  * POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36 /**
  37  * \file
  38  *
  39  * The daemon consists of global settings and a number of workers.
  40  */
  41
  42 #include "config.h"
  43 #ifdef HAVE_OPENSSL_ERR_H
  44 #include <openssl/err.h>
  45 #endif
  46
  47 #ifdef HAVE_OPENSSL_RAND_H
  48 #include <openssl/rand.h>
  49 #endif
  50
  51 #ifdef HAVE_OPENSSL_CONF_H
  52 #include <openssl/conf.h>
  53 #endif
  54
  55 #ifdef HAVE_OPENSSL_ENGINE_H
  56 #include <openssl/engine.h>
  57 #endif
  58
  59 #ifdef HAVE_NSS
  60 /* nss3 */
  61 #include "nss.h"
  62 #endif
  63
  64 #include <ldns/ldns.h>
  65 #include "daemon/daemon.h"
  66 #include "daemon/worker.h"
  67 #include "daemon/remote.h"
  68 #include "daemon/acl_list.h"
  69 #include "util/log.h"
  70 #include "util/config_file.h"
  71 #include "util/data/msgreply.h"
  72 #include "util/storage/lookup3.h"
  73 #include "util/storage/slabhash.h"
  74 #include "services/listen_dnsport.h"
  75 #include "services/cache/rrset.h"
  76 #include "services/cache/infra.h"
  77 #include "services/localzone.h"
  78 #include "services/modstack.h"
  79 #include "util/module.h"
  80 #include "util/random.h"
  81 #include "util/tube.h"
  82 #include "util/net_help.h"
  83 #include <signal.h>
  84
  85 /** How many quit requests happened. */
  86 static int sig_record_quit = 0;
  87 /** How many reload requests happened. */
  88 static int sig_record_reload = 0;
  89
  90 #if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS
  91 /** cleaner ssl memory freeup */
  92 static void* comp_meth = NULL;
  93 #endif
  94 #ifdef LEX_HAS_YYLEX_DESTROY
  95 /** remove buffers for parsing and init */
  96 int ub_c_lex_destroy(void);
  97 #endif
  98
  99 /** used when no other sighandling happens, so we don't die
 100   * when multiple signals in quick succession are sent to us.
 101   * @param sig: signal number.
 102   * @return signal handler return type (void or int).
 103   */
 104 static RETSIGTYPE record_sigh(int sig)
 105 {
 106 #ifdef LIBEVENT_SIGNAL_PROBLEM
 107         verbose(VERB_OPS, "quit on signal, no cleanup and statistics, "
 108                 "because installed libevent version is not threadsafe");
 109         exit(0);
 110 #endif
 111         switch(sig)
 112         {
 113                 case SIGTERM:
 114 #ifdef SIGQUIT
 115                 case SIGQUIT:
 116 #endif
 117 #ifdef SIGBREAK
 118                 case SIGBREAK:
 119 #endif
 120                 case SIGINT:
 121                         sig_record_quit++;
 122                         break;
 123 #ifdef SIGHUP
 124                 case SIGHUP:
 125                         sig_record_reload++;
 126                         break;
 127 #endif
 128 #ifdef SIGPIPE
 129                 case SIGPIPE:
 130                         break;
 131 #endif
 132                 default:
 133                         log_err("ignoring signal %d", sig);
 134         }
 135 }
 136
 137 /**
 138  * Signal handling during the time when netevent is disabled.
 139  * Stores signals to replay later.
 140  */
 141 static void
 142 signal_handling_record(void)
 143 {
 144         if( signal(SIGTERM, record_sigh) == SIG_ERR ||
 145 #ifdef SIGQUIT
 146                 signal(SIGQUIT, record_sigh) == SIG_ERR ||
 147 #endif
 148 #ifdef SIGBREAK
 149                 signal(SIGBREAK, record_sigh) == SIG_ERR ||
 150 #endif
 151 #ifdef SIGHUP
 152                 signal(SIGHUP, record_sigh) == SIG_ERR ||
 153 #endif
 154 #ifdef SIGPIPE
 155                 signal(SIGPIPE, SIG_IGN) == SIG_ERR ||
 156 #endif
 157                 signal(SIGINT, record_sigh) == SIG_ERR
 158                 )
 159                 log_err("install sighandler: %s", strerror(errno));
 160 }
 161
 162 /**
 163  * Replay old signals.
 164  * @param wrk: worker that handles signals.
 165  */
 166 static void
 167 signal_handling_playback(struct worker* wrk)
 168 {
 169 #ifdef SIGHUP
 170         if(sig_record_reload)
 171                 worker_sighandler(SIGHUP, wrk);
 172 #endif
 173         if(sig_record_quit)
 174                 worker_sighandler(SIGTERM, wrk);
 175         sig_record_quit = 0;
 176         sig_record_reload = 0;
 177 }
 178
 179 struct daemon*
 180 daemon_init(void)
 181 {
 182         struct daemon* daemon = (struct daemon*)calloc(1,
 183                 sizeof(struct daemon));
 184 #ifdef USE_WINSOCK
 185         int r;
 186         WSADATA wsa_data;
 187 #endif
 188         if(!daemon)
 189                 return NULL;
 190 #ifdef USE_WINSOCK
 191         r = WSAStartup(MAKEWORD(2,2), &wsa_data);
 192         if(r != 0) {
 193                 fatal_exit("could not init winsock. WSAStartup: %s",
 194                         wsa_strerror(r));
 195         }
 196 #endif /* USE_WINSOCK */
 197         signal_handling_record();
 198         checklock_start();
 199 #ifdef HAVE_SSL
 200         ERR_load_crypto_strings();
 201         ERR_load_SSL_strings();
 202 #  ifdef HAVE_OPENSSL_CONFIG
 203         OPENSSL_config("unbound");
 204 #  endif
 205 #  ifdef USE_GOST
 206         (void)ldns_key_EVP_load_gost_id();
 207 #  endif
 208         OpenSSL_add_all_algorithms();
 209 #  if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS
 210         /* grab the COMP method ptr because openssl leaks it */
 211         comp_meth = (void*)SSL_COMP_get_compression_methods();
 212 #  endif
 213         (void)SSL_library_init();
 214 #  if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED)
 215         if(!ub_openssl_lock_init())
 216                 fatal_exit("could not init openssl locks");
 217 #  endif
 218 #elif defined(HAVE_NSS)
 219         if(NSS_NoDB_Init(NULL) != SECSuccess)
 220                 fatal_exit("could not init NSS");
 221 #endif /* HAVE_SSL or HAVE_NSS */
 222 #ifdef HAVE_TZSET
 223         /* init timezone info while we are not chrooted yet */
 224         tzset();
 225 #endif
 226         /* open /dev/random if needed */
 227         ub_systemseed((unsigned)time(NULL)^(unsigned)getpid()^0xe67);
 228         daemon->need_to_exit = 0;
 229         modstack_init(&daemon->mods);
 230         if(!(daemon->env = (struct module_env*)calloc(1,
 231                 sizeof(*daemon->env)))) {
 232                 free(daemon);
 233                 return NULL;
 234         }
 235         alloc_init(&daemon->superalloc, NULL, 0);
 236         daemon->acl = acl_list_create();
 237         if(!daemon->acl) {
 238                 free(daemon->env);
 239                 free(daemon);
 240                 return NULL;
 241         }
 242         if(gettimeofday(&daemon->time_boot, NULL) < 0)
 243                 log_err("gettimeofday: %s", strerror(errno));
 244         daemon->time_last_stat = daemon->time_boot;
 245         return daemon;
 246 }
 247
 248 int
 249 daemon_open_shared_ports(struct daemon* daemon)
 250 {
 251         log_assert(daemon);
 252         if(daemon->cfg->port != daemon->listening_port) {
 253                 listening_ports_free(daemon->ports);
 254                 if(!(daemon->ports=listening_ports_open(daemon->cfg)))
 255                         return 0;
 256                 daemon->listening_port = daemon->cfg->port;
 257         }
 258         if(!daemon->cfg->remote_control_enable && daemon->rc_port) {
 259                 listening_ports_free(daemon->rc_ports);
 260                 daemon->rc_ports = NULL;
 261                 daemon->rc_port = 0;
 262         }
 263         if(daemon->cfg->remote_control_enable &&
 264                 daemon->cfg->control_port != daemon->rc_port) {
 265                 listening_ports_free(daemon->rc_ports);
 266                 if(!(daemon->rc_ports=daemon_remote_open_ports(daemon->cfg)))
 267                         return 0;
 268                 daemon->rc_port = daemon->cfg->control_port;
 269         }
 270         return 1;
 271 }
 272
 273 /**
 274  * Setup modules. setup module stack.
 275  * @param daemon: the daemon
 276  */
 277 static void daemon_setup_modules(struct daemon* daemon)
 278 {
 279         daemon->env->cfg = daemon->cfg;
 280         daemon->env->alloc = &daemon->superalloc;
 281         daemon->env->worker = NULL;
 282         daemon->env->need_to_validate = 0; /* set by module init below */
 283         if(!modstack_setup(&daemon->mods, daemon->cfg->module_conf,
 284                 daemon->env)) {
 285                 fatal_exit("failed to setup modules");
 286         }
 287 }
 288
 289 /**
 290  * Obtain allowed port numbers, concatenate the list, and shuffle them
 291  * (ready to be handed out to threads).
 292  * @param daemon: the daemon. Uses rand and cfg.
 293  * @param shufport: the portlist output.
 294  * @return number of ports available.
 295  */
 296 static int daemon_get_shufport(struct daemon* daemon, int* shufport)
 297 {
 298         int i, n, k, temp;
 299         int avail = 0;
 300         for(i=0; i<65536; i++) {
 301                 if(daemon->cfg->outgoing_avail_ports[i]) {
 302                         shufport[avail++] = daemon->cfg->
 303                                 outgoing_avail_ports[i];
 304                 }
 305         }
 306         if(avail == 0)
 307                 fatal_exit("no ports are permitted for UDP, add "
 308                         "with outgoing-port-permit");
 309         /* Knuth shuffle */
 310         n = avail;
 311         while(--n > 0) {
 312                 k = ub_random_max(daemon->rand, n+1); /* 0<= k<= n */
 313                 temp = shufport[k];
 314                 shufport[k] = shufport[n];
 315                 shufport[n] = temp;
 316         }
 317         return avail;
 318 }
 319
 320 /**
 321  * Allocate empty worker structures. With backptr and thread-number,
 322  * from 0..numthread initialised. Used as user arguments to new threads.
 323  * Creates the daemon random generator if it does not exist yet.
 324  * The random generator stays existing between reloads with a unique state.
 325  * @param daemon: the daemon with (new) config settings.
 326  */
 327 static void
 328 daemon_create_workers(struct daemon* daemon)
 329 {
 330         int i, numport;
 331         int* shufport;
 332         log_assert(daemon && daemon->cfg);
 333         if(!daemon->rand) {
 334                 unsigned int seed = (unsigned int)time(NULL) ^
 335                         (unsigned int)getpid() ^ 0x438;
 336                 daemon->rand = ub_initstate(seed, NULL);
 337                 if(!daemon->rand)
 338                         fatal_exit("could not init random generator");
 339         }
 340         hash_set_raninit((uint32_t)ub_random(daemon->rand));
 341         shufport = (int*)calloc(65536, sizeof(int));
 342         if(!shufport)
 343                 fatal_exit("out of memory during daemon init");
 344         numport = daemon_get_shufport(daemon, shufport);
 345         verbose(VERB_ALGO, "total of %d outgoing ports available", numport);
 346
 347         daemon->num = (daemon->cfg->num_threads?daemon->cfg->num_threads:1);
 348         daemon->workers = (struct worker**)calloc((size_t)daemon->num,
 349                 sizeof(struct worker*));
 350         for(i=0; i<daemon->num; i++) {
 351                 if(!(daemon->workers[i] = worker_create(daemon, i,
 352                         shufport+numport*i/daemon->num,
 353                         numport*(i+1)/daemon->num - numport*i/daemon->num)))
 354                         /* the above is not ports/numthr, due to rounding */
 355                         fatal_exit("could not create worker");
 356         }
 357         free(shufport);
 358 }
 359
 360 #ifdef THREADS_DISABLED
 361 /**
 362  * Close all pipes except for the numbered thread.
 363  * @param daemon: daemon to close pipes in.
 364  * @param thr: thread number 0..num-1 of thread to skip.
 365  */
 366 static void close_other_pipes(struct daemon* daemon, int thr)
 367 {
 368         int i;
 369         for(i=0; i<daemon->num; i++)
 370                 if(i!=thr) {
 371                         if(i==0) {
 372                                 /* only close read part, need to write stats */
 373                                 tube_close_read(daemon->workers[i]->cmd);
 374                         } else {
 375                                 /* complete close channel to others */
 376                                 tube_delete(daemon->workers[i]->cmd);
 377                                 daemon->workers[i]->cmd = NULL;
 378                         }
 379                 }
 380 }
 381 #endif /* THREADS_DISABLED */
 382
 383 /**
 384  * Function to start one thread.
 385  * @param arg: user argument.
 386  * @return: void* user return value could be used for thread_join results.
 387  */
 388 static void*
 389 thread_start(void* arg)
 390 {
 391         struct worker* worker = (struct worker*)arg;
 392         log_thread_set(&worker->thread_num);
 393         ub_thread_blocksigs();
 394 #ifdef THREADS_DISABLED
 395         /* close pipe ends used by main */
 396         tube_close_write(worker->cmd);
 397         close_other_pipes(worker->daemon, worker->thread_num);
 398 #endif
 399         if(!worker_init(worker, worker->daemon->cfg, worker->daemon->ports, 0))
 400                 fatal_exit("Could not initialize thread");
 401
 402         worker_work(worker);
 403         return NULL;
 404 }
 405
 406 /**
 407  * Fork and init the other threads. Main thread returns for special handling.
 408  * @param daemon: the daemon with other threads to fork.
 409  */
 410 static void
 411 daemon_start_others(struct daemon* daemon)
 412 {
 413         int i;
 414         log_assert(daemon);
 415         verbose(VERB_ALGO, "start threads");
 416         /* skip i=0, is this thread */
 417         for(i=1; i<daemon->num; i++) {
 418                 ub_thread_create(&daemon->workers[i]->thr_id,
 419                         thread_start, daemon->workers[i]);
 420 #ifdef THREADS_DISABLED
 421                 /* close pipe end of child */
 422                 tube_close_read(daemon->workers[i]->cmd);
 423 #endif /* no threads */
 424         }
 425 }
 426
 427 /**
 428  * Stop the other threads.
 429  * @param daemon: the daemon with other threads.
 430  */
 431 static void
 432 daemon_stop_others(struct daemon* daemon)
 433 {
 434         int i;
 435         log_assert(daemon);
 436         verbose(VERB_ALGO, "stop threads");
 437         /* skip i=0, is this thread */
 438         /* use i=0 buffer for sending cmds; because we are #0 */
 439         for(i=1; i<daemon->num; i++) {
 440                 worker_send_cmd(daemon->workers[i], worker_cmd_quit);
 441         }
 442         /* wait for them to quit */
 443         for(i=1; i<daemon->num; i++) {
 444                 /* join it to make sure its dead */
 445                 verbose(VERB_ALGO, "join %d", i);
 446                 ub_thread_join(daemon->workers[i]->thr_id);
 447                 verbose(VERB_ALGO, "join success %d", i);
 448         }
 449 }
 450
 451 void
 452 daemon_fork(struct daemon* daemon)
 453 {
 454         log_assert(daemon);
 455         if(!acl_list_apply_cfg(daemon->acl, daemon->cfg))
 456                 fatal_exit("Could not setup access control list");
 457         if(!(daemon->local_zones = local_zones_create()))
 458                 fatal_exit("Could not create local zones: out of memory");
 459         if(!local_zones_apply_cfg(daemon->local_zones, daemon->cfg))
 460                 fatal_exit("Could not set up local zones");
 461
 462         /* setup modules */
 463         daemon_setup_modules(daemon);
 464
 465         /* first create all the worker structures, so we can pass
 466          * them to the newly created threads.
 467          */
 468         daemon_create_workers(daemon);
 469
 470 #if defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP)
 471         /* in libev the first inited base gets signals */
 472         if(!worker_init(daemon->workers[0], daemon->cfg, daemon->ports, 1))
 473                 fatal_exit("Could not initialize main thread");
 474 #endif
 475
 476         /* Now create the threads and init the workers.
 477          * By the way, this is thread #0 (the main thread).
 478          */
 479         daemon_start_others(daemon);
 480
 481         /* Special handling for the main thread. This is the thread
 482          * that handles signals and remote control.
 483          */
 484 #if !(defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP))
 485         /* libevent has the last inited base get signals (or any base) */
 486         if(!worker_init(daemon->workers[0], daemon->cfg, daemon->ports, 1))
 487                 fatal_exit("Could not initialize main thread");
 488 #endif
 489         signal_handling_playback(daemon->workers[0]);
 490
 491         /* Start resolver service on main thread. */
 492         log_info("start of service (%s).", PACKAGE_STRING);
 493         worker_work(daemon->workers[0]);
 494         log_info("service stopped (%s).", PACKAGE_STRING);
 495
 496         /* we exited! a signal happened! Stop other threads */
 497         daemon_stop_others(daemon);
 498
 499         daemon->need_to_exit = daemon->workers[0]->need_to_exit;
 500 }
 501
 502 void
 503 daemon_cleanup(struct daemon* daemon)
 504 {
 505         int i;
 506         log_assert(daemon);
 507         /* before stopping main worker, handle signals ourselves, so we
 508            don't die on multiple reload signals for example. */
 509         signal_handling_record();
 510         log_thread_set(NULL);
 511         /* clean up caches because
 512          * a) RRset IDs will be recycled after a reload, causing collisions
 513          * b) validation config can change, thus rrset, msg, keycache clear
 514          * The infra cache is kept, the timing and edns info is still valid */
 515         slabhash_clear(&daemon->env->rrset_cache->table);
 516         slabhash_clear(daemon->env->msg_cache);
 517         local_zones_delete(daemon->local_zones);
 518         daemon->local_zones = NULL;
 519         /* key cache is cleared by module desetup during next daemon_init() */
 520         daemon_remote_clear(daemon->rc);
 521         for(i=0; i<daemon->num; i++)
 522                 worker_delete(daemon->workers[i]);
 523         free(daemon->workers);
 524         daemon->workers = NULL;
 525         daemon->num = 0;
 526         daemon->cfg = NULL;
 527 }
 528
 529 void
 530 daemon_delete(struct daemon* daemon)
 531 {
 532         if(!daemon)
 533                 return;
 534         modstack_desetup(&daemon->mods, daemon->env);
 535         daemon_remote_delete(daemon->rc);
 536         listening_ports_free(daemon->ports);
 537         listening_ports_free(daemon->rc_ports);
 538         if(daemon->env) {
 539                 slabhash_delete(daemon->env->msg_cache);
 540                 rrset_cache_delete(daemon->env->rrset_cache);
 541                 infra_delete(daemon->env->infra_cache);
 542         }
 543         ub_randfree(daemon->rand);
 544         alloc_clear(&daemon->superalloc);
 545         acl_list_delete(daemon->acl);
 546         free(daemon->chroot);
 547         free(daemon->pidfile);
 548         free(daemon->env);
 549 #ifdef HAVE_SSL
 550         SSL_CTX_free((SSL_CTX*)daemon->listen_sslctx);
 551         SSL_CTX_free((SSL_CTX*)daemon->connect_sslctx);
 552 #endif
 553         free(daemon);
 554 #ifdef LEX_HAS_YYLEX_DESTROY
 555         /* lex cleanup */
 556         ub_c_lex_destroy();
 557 #endif
 558         /* libcrypto cleanup */
 559 #ifdef HAVE_SSL
 560 #  if defined(USE_GOST) && defined(HAVE_LDNS_KEY_EVP_UNLOAD_GOST)
 561         ldns_key_EVP_unload_gost();
 562 #  endif
 563 #  if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS && HAVE_DECL_SK_SSL_COMP_POP_FREE
 564 #    ifndef S_SPLINT_S
 565         sk_SSL_COMP_pop_free(comp_meth, (void(*)())CRYPTO_free);
 566 #    endif
 567 #  endif
 568 #  ifdef HAVE_OPENSSL_CONFIG
 569         EVP_cleanup();
 570         ENGINE_cleanup();
 571         CONF_modules_free();
 572 #  endif
 573         CRYPTO_cleanup_all_ex_data(); /* safe, no more threads right now */
 574         ERR_remove_state(0);
 575         ERR_free_strings();
 576         RAND_cleanup();
 577 #  if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED)
 578         ub_openssl_lock_delete();
 579 #  endif
 580 #elif defined(HAVE_NSS)
 581         NSS_Shutdown();
 582 #endif /* HAVE_SSL or HAVE_NSS */
 583         checklock_stop();
 584 #ifdef USE_WINSOCK
 585         if(WSACleanup() != 0) {
 586                 log_err("Could not WSACleanup: %s",
 587                         wsa_strerror(WSAGetLastError()));
 588         }
 589 #endif
 590 }
 591
 592 void daemon_apply_cfg(struct daemon* daemon, struct config_file* cfg)
 593 {
 594         daemon->cfg = cfg;
 595         config_apply(cfg);
 596         if(!daemon->env->msg_cache ||
 597            cfg->msg_cache_size != slabhash_get_size(daemon->env->msg_cache) ||
 598            cfg->msg_cache_slabs != daemon->env->msg_cache->size) {
 599                 slabhash_delete(daemon->env->msg_cache);
 600                 daemon->env->msg_cache = slabhash_create(cfg->msg_cache_slabs,
 601                         HASH_DEFAULT_STARTARRAY, cfg->msg_cache_size,
 602                         msgreply_sizefunc, query_info_compare,
 603                         query_entry_delete, reply_info_delete, NULL);
 604                 if(!daemon->env->msg_cache) {
 605                         fatal_exit("malloc failure updating config settings");
 606                 }
 607         }
 608         if((daemon->env->rrset_cache = rrset_cache_adjust(
 609                 daemon->env->rrset_cache, cfg, &daemon->superalloc)) == 0)
 610                 fatal_exit("malloc failure updating config settings");
 611         if((daemon->env->infra_cache = infra_adjust(daemon->env->infra_cache,
 612                 cfg))==0)
 613                 fatal_exit("malloc failure updating config settings");
 614 }