2 * daemon/daemon.c - collection of workers that handles requests.
4 * Copyright (c) 2007, NLnet Labs. All rights reserved.
6 * This software is open source.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
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.
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.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
29 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 * The daemon consists of global settings and a number of workers.
43 #ifdef HAVE_OPENSSL_ERR_H
44 #include <openssl/err.h>
47 #ifdef HAVE_OPENSSL_RAND_H
48 #include <openssl/rand.h>
51 #ifdef HAVE_OPENSSL_CONF_H
52 #include <openssl/conf.h>
55 #ifdef HAVE_OPENSSL_ENGINE_H
56 #include <openssl/engine.h>
69 #include "daemon/daemon.h"
70 #include "daemon/worker.h"
71 #include "daemon/remote.h"
72 #include "daemon/acl_list.h"
74 #include "util/config_file.h"
75 #include "util/data/msgreply.h"
76 #include "util/shm_side/shm_main.h"
77 #include "util/storage/lookup3.h"
78 #include "util/storage/slabhash.h"
79 #include "util/tcp_conn_limit.h"
80 #include "services/listen_dnsport.h"
81 #include "services/cache/rrset.h"
82 #include "services/cache/infra.h"
83 #include "services/localzone.h"
84 #include "services/view.h"
85 #include "services/modstack.h"
86 #include "services/authzone.h"
87 #include "util/module.h"
88 #include "util/random.h"
89 #include "util/tube.h"
90 #include "util/net_help.h"
91 #include "sldns/keyraw.h"
92 #include "respip/respip.h"
96 #include <systemd/sd-daemon.h>
99 /** How many quit requests happened. */
100 static int sig_record_quit = 0;
101 /** How many reload requests happened. */
102 static int sig_record_reload = 0;
104 #if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS
105 /** cleaner ssl memory freeup */
106 static void* comp_meth = NULL;
108 /** remove buffers for parsing and init */
109 int ub_c_lex_destroy(void);
111 /** used when no other sighandling happens, so we don't die
112 * when multiple signals in quick succession are sent to us.
113 * @param sig: signal number.
114 * @return signal handler return type (void or int).
116 static RETSIGTYPE record_sigh(int sig)
118 #ifdef LIBEVENT_SIGNAL_PROBLEM
119 /* cannot log, verbose here because locks may be held */
120 /* quit on signal, no cleanup and statistics,
121 because installed libevent version is not threadsafe */
146 /* ignoring signal */
152 * Signal handling during the time when netevent is disabled.
153 * Stores signals to replay later.
156 signal_handling_record(void)
158 if( signal(SIGTERM, record_sigh) == SIG_ERR ||
160 signal(SIGQUIT, record_sigh) == SIG_ERR ||
163 signal(SIGBREAK, record_sigh) == SIG_ERR ||
166 signal(SIGHUP, record_sigh) == SIG_ERR ||
169 signal(SIGPIPE, SIG_IGN) == SIG_ERR ||
171 signal(SIGINT, record_sigh) == SIG_ERR
173 log_err("install sighandler: %s", strerror(errno));
177 * Replay old signals.
178 * @param wrk: worker that handles signals.
181 signal_handling_playback(struct worker* wrk)
184 if(sig_record_reload)
185 worker_sighandler(SIGHUP, wrk);
188 worker_sighandler(SIGTERM, wrk);
190 sig_record_reload = 0;
196 struct daemon* daemon = (struct daemon*)calloc(1,
197 sizeof(struct daemon));
205 r = WSAStartup(MAKEWORD(2,2), &wsa_data);
207 fatal_exit("could not init winsock. WSAStartup: %s",
210 #endif /* USE_WINSOCK */
211 signal_handling_record();
214 # ifdef HAVE_ERR_LOAD_CRYPTO_STRINGS
215 ERR_load_crypto_strings();
217 #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_SSL)
218 ERR_load_SSL_strings();
221 (void)sldns_key_EVP_load_gost_id();
223 # if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_CRYPTO)
225 OpenSSL_add_all_algorithms();
228 OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS
229 | OPENSSL_INIT_ADD_ALL_DIGESTS
230 | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
232 # if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS
233 /* grab the COMP method ptr because openssl leaks it */
234 comp_meth = (void*)SSL_COMP_get_compression_methods();
236 # if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_SSL)
237 (void)SSL_library_init();
239 (void)OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL);
241 # if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED)
242 if(!ub_openssl_lock_init())
243 fatal_exit("could not init openssl locks");
245 #elif defined(HAVE_NSS)
246 if(NSS_NoDB_Init(NULL) != SECSuccess)
247 fatal_exit("could not init NSS");
248 #endif /* HAVE_SSL or HAVE_NSS */
250 /* init timezone info while we are not chrooted yet */
253 daemon->need_to_exit = 0;
254 modstack_init(&daemon->mods);
255 if(!(daemon->env = (struct module_env*)calloc(1,
256 sizeof(*daemon->env)))) {
260 /* init edns_known_options */
261 if(!edns_known_options_init(daemon->env)) {
266 alloc_init(&daemon->superalloc, NULL, 0);
267 daemon->acl = acl_list_create();
269 edns_known_options_delete(daemon->env);
274 daemon->tcl = tcl_list_create();
276 acl_list_delete(daemon->acl);
277 edns_known_options_delete(daemon->env);
282 if(gettimeofday(&daemon->time_boot, NULL) < 0)
283 log_err("gettimeofday: %s", strerror(errno));
284 daemon->time_last_stat = daemon->time_boot;
285 if((daemon->env->auth_zones = auth_zones_create()) == 0) {
286 acl_list_delete(daemon->acl);
287 tcl_list_delete(daemon->tcl);
288 edns_known_options_delete(daemon->env);
297 daemon_open_shared_ports(struct daemon* daemon)
300 if(daemon->cfg->port != daemon->listening_port) {
302 struct listen_port* p0;
303 daemon->reuseport = 0;
304 /* free and close old ports */
305 if(daemon->ports != NULL) {
306 for(i=0; i<daemon->num_ports; i++)
307 listening_ports_free(daemon->ports[i]);
309 daemon->ports = NULL;
311 /* see if we want to reuseport */
313 if(daemon->cfg->so_reuseport && daemon->cfg->num_threads > 0)
314 daemon->reuseport = 1;
316 /* try to use reuseport */
317 p0 = listening_ports_open(daemon->cfg, &daemon->reuseport);
319 listening_ports_free(p0);
322 if(daemon->reuseport) {
323 /* reuseport was successful, allocate for it */
324 daemon->num_ports = (size_t)daemon->cfg->num_threads;
326 /* do the normal, singleportslist thing,
327 * reuseport not enabled or did not work */
328 daemon->num_ports = 1;
330 if(!(daemon->ports = (struct listen_port**)calloc(
331 daemon->num_ports, sizeof(*daemon->ports)))) {
332 listening_ports_free(p0);
335 daemon->ports[0] = p0;
336 if(daemon->reuseport) {
337 /* continue to use reuseport */
338 for(i=1; i<daemon->num_ports; i++) {
339 if(!(daemon->ports[i]=
340 listening_ports_open(daemon->cfg,
342 || !daemon->reuseport ) {
343 for(i=0; i<daemon->num_ports; i++)
344 listening_ports_free(daemon->ports[i]);
346 daemon->ports = NULL;
351 daemon->listening_port = daemon->cfg->port;
353 if(!daemon->cfg->remote_control_enable && daemon->rc_port) {
354 listening_ports_free(daemon->rc_ports);
355 daemon->rc_ports = NULL;
358 if(daemon->cfg->remote_control_enable &&
359 daemon->cfg->control_port != daemon->rc_port) {
360 listening_ports_free(daemon->rc_ports);
361 if(!(daemon->rc_ports=daemon_remote_open_ports(daemon->cfg)))
363 daemon->rc_port = daemon->cfg->control_port;
369 * Setup modules. setup module stack.
370 * @param daemon: the daemon
372 static void daemon_setup_modules(struct daemon* daemon)
374 daemon->env->cfg = daemon->cfg;
375 daemon->env->alloc = &daemon->superalloc;
376 daemon->env->worker = NULL;
377 daemon->env->need_to_validate = 0; /* set by module init below */
378 if(!modstack_setup(&daemon->mods, daemon->cfg->module_conf,
380 fatal_exit("failed to setup modules");
382 log_edns_known_options(VERB_ALGO, daemon->env);
386 * Obtain allowed port numbers, concatenate the list, and shuffle them
387 * (ready to be handed out to threads).
388 * @param daemon: the daemon. Uses rand and cfg.
389 * @param shufport: the portlist output.
390 * @return number of ports available.
392 static int daemon_get_shufport(struct daemon* daemon, int* shufport)
396 for(i=0; i<65536; i++) {
397 if(daemon->cfg->outgoing_avail_ports[i]) {
398 shufport[avail++] = daemon->cfg->
399 outgoing_avail_ports[i];
403 fatal_exit("no ports are permitted for UDP, add "
404 "with outgoing-port-permit");
408 k = ub_random_max(daemon->rand, n+1); /* 0<= k<= n */
410 shufport[k] = shufport[n];
417 * Allocate empty worker structures. With backptr and thread-number,
418 * from 0..numthread initialised. Used as user arguments to new threads.
419 * Creates the daemon random generator if it does not exist yet.
420 * The random generator stays existing between reloads with a unique state.
421 * @param daemon: the daemon with (new) config settings.
424 daemon_create_workers(struct daemon* daemon)
428 log_assert(daemon && daemon->cfg);
430 daemon->rand = ub_initstate(NULL);
432 fatal_exit("could not init random generator");
433 hash_set_raninit((uint32_t)ub_random(daemon->rand));
435 shufport = (int*)calloc(65536, sizeof(int));
437 fatal_exit("out of memory during daemon init");
438 numport = daemon_get_shufport(daemon, shufport);
439 verbose(VERB_ALGO, "total of %d outgoing ports available", numport);
441 daemon->num = (daemon->cfg->num_threads?daemon->cfg->num_threads:1);
442 if(daemon->reuseport && (int)daemon->num < (int)daemon->num_ports) {
443 log_warn("cannot reduce num-threads to %d because so-reuseport "
444 "so continuing with %d threads.", (int)daemon->num,
445 (int)daemon->num_ports);
446 daemon->num = (int)daemon->num_ports;
448 daemon->workers = (struct worker**)calloc((size_t)daemon->num,
449 sizeof(struct worker*));
451 fatal_exit("out of memory during daemon init");
452 if(daemon->cfg->dnstap) {
454 daemon->dtenv = dt_create(daemon->cfg->dnstap_socket_path,
455 (unsigned int)daemon->num);
457 fatal_exit("dt_create failed");
458 dt_apply_cfg(daemon->dtenv, daemon->cfg);
460 fatal_exit("dnstap enabled in config but not built with dnstap support");
463 for(i=0; i<daemon->num; i++) {
464 if(!(daemon->workers[i] = worker_create(daemon, i,
465 shufport+numport*i/daemon->num,
466 numport*(i+1)/daemon->num - numport*i/daemon->num)))
467 /* the above is not ports/numthr, due to rounding */
468 fatal_exit("could not create worker");
473 #ifdef THREADS_DISABLED
475 * Close all pipes except for the numbered thread.
476 * @param daemon: daemon to close pipes in.
477 * @param thr: thread number 0..num-1 of thread to skip.
479 static void close_other_pipes(struct daemon* daemon, int thr)
482 for(i=0; i<daemon->num; i++)
485 /* only close read part, need to write stats */
486 tube_close_read(daemon->workers[i]->cmd);
488 /* complete close channel to others */
489 tube_delete(daemon->workers[i]->cmd);
490 daemon->workers[i]->cmd = NULL;
494 #endif /* THREADS_DISABLED */
497 * Function to start one thread.
498 * @param arg: user argument.
499 * @return: void* user return value could be used for thread_join results.
502 thread_start(void* arg)
504 struct worker* worker = (struct worker*)arg;
506 log_thread_set(&worker->thread_num);
507 ub_thread_blocksigs();
508 #ifdef THREADS_DISABLED
509 /* close pipe ends used by main */
510 tube_close_write(worker->cmd);
511 close_other_pipes(worker->daemon, worker->thread_num);
514 if(worker->daemon->cfg->so_reuseport)
515 port_num = worker->thread_num % worker->daemon->num_ports;
519 if(!worker_init(worker, worker->daemon->cfg,
520 worker->daemon->ports[port_num], 0))
521 fatal_exit("Could not initialize thread");
528 * Fork and init the other threads. Main thread returns for special handling.
529 * @param daemon: the daemon with other threads to fork.
532 daemon_start_others(struct daemon* daemon)
536 verbose(VERB_ALGO, "start threads");
537 /* skip i=0, is this thread */
538 for(i=1; i<daemon->num; i++) {
539 ub_thread_create(&daemon->workers[i]->thr_id,
540 thread_start, daemon->workers[i]);
541 #ifdef THREADS_DISABLED
542 /* close pipe end of child */
543 tube_close_read(daemon->workers[i]->cmd);
544 #endif /* no threads */
549 * Stop the other threads.
550 * @param daemon: the daemon with other threads.
553 daemon_stop_others(struct daemon* daemon)
557 verbose(VERB_ALGO, "stop threads");
558 /* skip i=0, is this thread */
559 /* use i=0 buffer for sending cmds; because we are #0 */
560 for(i=1; i<daemon->num; i++) {
561 worker_send_cmd(daemon->workers[i], worker_cmd_quit);
563 /* wait for them to quit */
564 for(i=1; i<daemon->num; i++) {
565 /* join it to make sure its dead */
566 verbose(VERB_ALGO, "join %d", i);
567 ub_thread_join(daemon->workers[i]->thr_id);
568 verbose(VERB_ALGO, "join success %d", i);
573 daemon_fork(struct daemon* daemon)
575 int have_view_respip_cfg = 0;
581 if(!(daemon->views = views_create()))
582 fatal_exit("Could not create views: out of memory");
583 /* create individual views and their localzone/data trees */
584 if(!views_apply_cfg(daemon->views, daemon->cfg))
585 fatal_exit("Could not set up views");
587 if(!acl_list_apply_cfg(daemon->acl, daemon->cfg, daemon->views))
588 fatal_exit("Could not setup access control list");
589 if(!tcl_list_apply_cfg(daemon->tcl, daemon->cfg))
590 fatal_exit("Could not setup TCP connection limits");
591 if(daemon->cfg->dnscrypt) {
593 daemon->dnscenv = dnsc_create();
594 if (!daemon->dnscenv)
595 fatal_exit("dnsc_create failed");
596 dnsc_apply_cfg(daemon->dnscenv, daemon->cfg);
598 fatal_exit("dnscrypt enabled in config but unbound was not built with "
602 /* create global local_zones */
603 if(!(daemon->local_zones = local_zones_create()))
604 fatal_exit("Could not create local zones: out of memory");
605 if(!local_zones_apply_cfg(daemon->local_zones, daemon->cfg))
606 fatal_exit("Could not set up local zones");
608 /* process raw response-ip configuration data */
609 if(!(daemon->respip_set = respip_set_create()))
610 fatal_exit("Could not create response IP set");
611 if(!respip_global_apply_cfg(daemon->respip_set, daemon->cfg))
612 fatal_exit("Could not set up response IP set");
613 if(!respip_views_apply_cfg(daemon->views, daemon->cfg,
614 &have_view_respip_cfg))
615 fatal_exit("Could not set up per-view response IP sets");
616 daemon->use_response_ip = !respip_set_is_empty(daemon->respip_set) ||
617 have_view_respip_cfg;
619 /* read auth zonefiles */
620 if(!auth_zones_apply_cfg(daemon->env->auth_zones, daemon->cfg, 1))
621 fatal_exit("auth_zones could not be setup");
624 daemon_setup_modules(daemon);
626 /* response-ip-xxx options don't work as expected without the respip
627 * module. To avoid run-time operational surprise we reject such
629 if(daemon->use_response_ip &&
630 modstack_find(&daemon->mods, "respip") < 0)
631 fatal_exit("response-ip options require respip module");
633 /* first create all the worker structures, so we can pass
634 * them to the newly created threads.
636 daemon_create_workers(daemon);
638 #if defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP)
639 /* in libev the first inited base gets signals */
640 if(!worker_init(daemon->workers[0], daemon->cfg, daemon->ports[0], 1))
641 fatal_exit("Could not initialize main thread");
644 /* Now create the threads and init the workers.
645 * By the way, this is thread #0 (the main thread).
647 daemon_start_others(daemon);
649 /* Special handling for the main thread. This is the thread
650 * that handles signals and remote control.
652 #if !(defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP))
653 /* libevent has the last inited base get signals (or any base) */
654 if(!worker_init(daemon->workers[0], daemon->cfg, daemon->ports[0], 1))
655 fatal_exit("Could not initialize main thread");
657 signal_handling_playback(daemon->workers[0]);
659 if (!shm_main_init(daemon))
660 log_warn("SHM has failed");
662 /* Start resolver service on main thread. */
664 ret = sd_notify(0, "READY=1");
665 if(ret <= 0 && getenv("NOTIFY_SOCKET"))
666 fatal_exit("sd_notify failed %s: %s. Make sure that unbound has "
667 "access/permission to use the socket presented by systemd.",
668 getenv("NOTIFY_SOCKET"),
669 (ret==0?"no $NOTIFY_SOCKET": strerror(-ret)));
671 log_info("start of service (%s).", PACKAGE_STRING);
672 worker_work(daemon->workers[0]);
674 if (daemon->workers[0]->need_to_exit)
675 sd_notify(0, "STOPPING=1");
677 sd_notify(0, "RELOADING=1");
679 log_info("service stopped (%s).", PACKAGE_STRING);
681 /* we exited! a signal happened! Stop other threads */
682 daemon_stop_others(daemon);
685 shm_main_shutdown(daemon);
687 daemon->need_to_exit = daemon->workers[0]->need_to_exit;
691 daemon_cleanup(struct daemon* daemon)
695 /* before stopping main worker, handle signals ourselves, so we
696 don't die on multiple reload signals for example. */
697 signal_handling_record();
698 log_thread_set(NULL);
699 /* clean up caches because
700 * a) RRset IDs will be recycled after a reload, causing collisions
701 * b) validation config can change, thus rrset, msg, keycache clear */
702 slabhash_clear(&daemon->env->rrset_cache->table);
703 slabhash_clear(daemon->env->msg_cache);
704 local_zones_delete(daemon->local_zones);
705 daemon->local_zones = NULL;
706 respip_set_delete(daemon->respip_set);
707 daemon->respip_set = NULL;
708 views_delete(daemon->views);
709 daemon->views = NULL;
710 if(daemon->env->auth_zones)
711 auth_zones_cleanup(daemon->env->auth_zones);
712 /* key cache is cleared by module desetup during next daemon_fork() */
713 daemon_remote_clear(daemon->rc);
714 for(i=0; i<daemon->num; i++)
715 worker_delete(daemon->workers[i]);
716 free(daemon->workers);
717 daemon->workers = NULL;
719 alloc_clear_special(&daemon->superalloc);
721 dt_delete(daemon->dtenv);
722 daemon->dtenv = NULL;
725 dnsc_delete(daemon->dnscenv);
726 daemon->dnscenv = NULL;
732 daemon_delete(struct daemon* daemon)
737 modstack_desetup(&daemon->mods, daemon->env);
738 daemon_remote_delete(daemon->rc);
739 for(i = 0; i < daemon->num_ports; i++)
740 listening_ports_free(daemon->ports[i]);
742 listening_ports_free(daemon->rc_ports);
744 slabhash_delete(daemon->env->msg_cache);
745 rrset_cache_delete(daemon->env->rrset_cache);
746 infra_delete(daemon->env->infra_cache);
747 edns_known_options_delete(daemon->env);
748 auth_zones_delete(daemon->env->auth_zones);
750 ub_randfree(daemon->rand);
751 alloc_clear(&daemon->superalloc);
752 acl_list_delete(daemon->acl);
753 tcl_list_delete(daemon->tcl);
754 free(daemon->chroot);
755 free(daemon->pidfile);
758 listen_sslctx_delete_ticket_keys();
759 SSL_CTX_free((SSL_CTX*)daemon->listen_sslctx);
760 SSL_CTX_free((SSL_CTX*)daemon->connect_sslctx);
765 /* libcrypto cleanup */
767 # if defined(USE_GOST) && defined(HAVE_LDNS_KEY_EVP_UNLOAD_GOST)
768 sldns_key_EVP_unload_gost();
770 # if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS && HAVE_DECL_SK_SSL_COMP_POP_FREE
772 # if OPENSSL_VERSION_NUMBER < 0x10100000
773 sk_SSL_COMP_pop_free(comp_meth, (void(*)())CRYPTO_free);
777 # ifdef HAVE_OPENSSL_CONFIG
779 # if (OPENSSL_VERSION_NUMBER < 0x10100000) && !defined(OPENSSL_NO_ENGINE)
784 # ifdef HAVE_CRYPTO_CLEANUP_ALL_EX_DATA
785 CRYPTO_cleanup_all_ex_data(); /* safe, no more threads right now */
787 # ifdef HAVE_ERR_FREE_STRINGS
790 # if OPENSSL_VERSION_NUMBER < 0x10100000
793 # if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED)
794 ub_openssl_lock_delete();
796 #ifndef HAVE_ARC4RANDOM
797 _ARC4_LOCK_DESTROY();
799 #elif defined(HAVE_NSS)
801 #endif /* HAVE_SSL or HAVE_NSS */
804 if(WSACleanup() != 0) {
805 log_err("Could not WSACleanup: %s",
806 wsa_strerror(WSAGetLastError()));
811 void daemon_apply_cfg(struct daemon* daemon, struct config_file* cfg)
815 if(!slabhash_is_size(daemon->env->msg_cache, cfg->msg_cache_size,
816 cfg->msg_cache_slabs)) {
817 slabhash_delete(daemon->env->msg_cache);
818 daemon->env->msg_cache = slabhash_create(cfg->msg_cache_slabs,
819 HASH_DEFAULT_STARTARRAY, cfg->msg_cache_size,
820 msgreply_sizefunc, query_info_compare,
821 query_entry_delete, reply_info_delete, NULL);
822 if(!daemon->env->msg_cache) {
823 fatal_exit("malloc failure updating config settings");
826 if((daemon->env->rrset_cache = rrset_cache_adjust(
827 daemon->env->rrset_cache, cfg, &daemon->superalloc)) == 0)
828 fatal_exit("malloc failure updating config settings");
829 if((daemon->env->infra_cache = infra_adjust(daemon->env->infra_cache,
831 fatal_exit("malloc failure updating config settings");