/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file */
#include <config.h>
#include <limits.h>
#include <inttypes.h>
#include <stdbool.h>
#ifdef HAVE_LMDB
#include <lmdb.h>
#endif
#include <isc/file.h>
#include <isc/hash.h>
#include <isc/lex.h>
#include <isc/print.h>
#include <isc/sha2.h>
#include <isc/stats.h>
#include <isc/string.h> /* Required for HP/UX (and others?) */
#include <isc/task.h>
#include <isc/util.h>
#include <dns/acache.h>
#include <dns/acl.h>
#include <dns/adb.h>
#include <dns/badcache.h>
#include <dns/cache.h>
#include <dns/db.h>
#include <dns/dispatch.h>
#include <dns/dlz.h>
#include <dns/dns64.h>
#include <dns/dnssec.h>
#include <dns/events.h>
#include <dns/forward.h>
#include <dns/keytable.h>
#include <dns/keyvalues.h>
#include <dns/master.h>
#include <dns/masterdump.h>
#include <dns/nta.h>
#include <dns/order.h>
#include <dns/peer.h>
#include <dns/rbt.h>
#include <dns/rdataset.h>
#include <dns/request.h>
#include <dns/resolver.h>
#include <dns/result.h>
#include <dns/rpz.h>
#include <dns/rrl.h>
#include <dns/stats.h>
#include <dns/time.h>
#include <dns/tsig.h>
#include <dns/zone.h>
#include <dns/zt.h>
#define CHECK(op) \
do { result = (op); \
if (result != ISC_R_SUCCESS) goto cleanup; \
} while (0)
#define RESSHUTDOWN(v) (((v)->attributes & DNS_VIEWATTR_RESSHUTDOWN) != 0)
#define ADBSHUTDOWN(v) (((v)->attributes & DNS_VIEWATTR_ADBSHUTDOWN) != 0)
#define REQSHUTDOWN(v) (((v)->attributes & DNS_VIEWATTR_REQSHUTDOWN) != 0)
#define DNS_VIEW_DELONLYHASH 111
#define DNS_VIEW_FAILCACHESIZE 1021
static void resolver_shutdown(isc_task_t *task, isc_event_t *event);
static void adb_shutdown(isc_task_t *task, isc_event_t *event);
static void req_shutdown(isc_task_t *task, isc_event_t *event);
isc_result_t
dns_view_create(isc_mem_t *mctx, dns_rdataclass_t rdclass,
const char *name, dns_view_t **viewp)
{
dns_view_t *view;
isc_result_t result;
char buffer[1024];
/*
* Create a view.
*/
REQUIRE(name != NULL);
REQUIRE(viewp != NULL && *viewp == NULL);
view = isc_mem_get(mctx, sizeof(*view));
if (view == NULL)
return (ISC_R_NOMEMORY);
view->nta_file = NULL;
view->mctx = NULL;
isc_mem_attach(mctx, &view->mctx);
view->name = isc_mem_strdup(mctx, name);
if (view->name == NULL) {
result = ISC_R_NOMEMORY;
goto cleanup_view;
}
result = isc_file_sanitize(NULL, view->name, "nta",
buffer, sizeof(buffer));
if (result != ISC_R_SUCCESS)
goto cleanup_name;
view->nta_file = isc_mem_strdup(mctx, buffer);
if (view->nta_file == NULL) {
result = ISC_R_NOMEMORY;
goto cleanup_name;
}
result = isc_mutex_init(&view->lock);
if (result != ISC_R_SUCCESS)
goto cleanup_name;
view->zonetable = NULL;
if (isc_bind9) {
result = dns_zt_create(mctx, rdclass, &view->zonetable);
if (result != ISC_R_SUCCESS) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"dns_zt_create() failed: %s",
isc_result_totext(result));
result = ISC_R_UNEXPECTED;
goto cleanup_mutex;
}
}
view->secroots_priv = NULL;
view->ntatable_priv = NULL;
view->fwdtable = NULL;
result = dns_fwdtable_create(mctx, &view->fwdtable);
if (result != ISC_R_SUCCESS) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"dns_fwdtable_create() failed: %s",
isc_result_totext(result));
result = ISC_R_UNEXPECTED;
goto cleanup_zt;
}
view->acache = NULL;
view->cache = NULL;
view->cachedb = NULL;
ISC_LIST_INIT(view->dlz_searched);
ISC_LIST_INIT(view->dlz_unsearched);
view->hints = NULL;
view->resolver = NULL;
view->adb = NULL;
view->requestmgr = NULL;
view->rdclass = rdclass;
view->frozen = false;
view->task = NULL;
result = isc_refcount_init(&view->references, 1);
if (result != ISC_R_SUCCESS) {
goto cleanup_fwdtable;
}
result = isc_refcount_init(&view->weakrefs, 1);
if (result != ISC_R_SUCCESS) {
goto cleanup_references;
}
view->attributes = (DNS_VIEWATTR_RESSHUTDOWN|DNS_VIEWATTR_ADBSHUTDOWN|
DNS_VIEWATTR_REQSHUTDOWN);
view->statickeys = NULL;
view->dynamickeys = NULL;
view->matchclients = NULL;
view->matchdestinations = NULL;
view->matchrecursiveonly = false;
result = dns_tsigkeyring_create(view->mctx, &view->dynamickeys);
if (result != ISC_R_SUCCESS)
goto cleanup_weakrefs;
view->peers = NULL;
view->order = NULL;
view->delonly = NULL;
view->rootdelonly = false;
view->rootexclude = NULL;
view->adbstats = NULL;
view->resstats = NULL;
view->resquerystats = NULL;
view->cacheshared = false;
ISC_LIST_INIT(view->dns64);
view->dns64cnt = 0;
/*
* Initialize configuration data with default values.
*/
view->recursion = true;
view->auth_nxdomain = false; /* Was true in BIND 8 */
view->additionalfromcache = true;
view->additionalfromauth = true;
view->enablednssec = true;
view->enablevalidation = true;
view->acceptexpired = false;
view->minimal_any = false;
view->minimalresponses = dns_minimal_no;
view->transfer_format = dns_one_answer;
view->cacheacl = NULL;
view->cacheonacl = NULL;
view->queryacl = NULL;
view->queryonacl = NULL;
view->recursionacl = NULL;
view->recursiononacl = NULL;
view->sortlist = NULL;
view->transferacl = NULL;
view->notifyacl = NULL;
view->updateacl = NULL;
view->upfwdacl = NULL;
view->denyansweracl = NULL;
view->nocasecompress = NULL;
view->msgcompression = true;
view->answeracl_exclude = NULL;
view->denyanswernames = NULL;
view->answernames_exclude = NULL;
view->rrl = NULL;
view->provideixfr = true;
view->maxcachettl = 7 * 24 * 3600;
view->maxncachettl = 3 * 3600;
view->nta_lifetime = 0;
view->nta_recheck = 0;
view->prefetch_eligible = 0;
view->prefetch_trigger = 0;
view->dstport = 53;
view->preferred_glue = 0;
view->flush = false;
view->dlv = NULL;
view->maxudp = 0;
view->nocookieudp = 0;
view->maxbits = 0;
view->v4_aaaa = dns_aaaa_ok;
view->v6_aaaa = dns_aaaa_ok;
view->aaaa_acl = NULL;
view->rpzs = NULL;
view->catzs = NULL;
dns_fixedname_init(&view->dlv_fixed);
view->managed_keys = NULL;
view->redirect = NULL;
view->redirectzone = NULL;
dns_fixedname_init(&view->redirectfixed);
view->requestnsid = false;
view->sendcookie = true;
view->requireservercookie = false;
view->trust_anchor_telemetry = true;
view->root_key_sentinel = true;
view->new_zone_file = NULL;
view->new_zone_db = NULL;
view->new_zone_dbenv = NULL;
view->new_zone_mapsize = 0ULL;
view->new_zone_config = NULL;
view->cfg_destroy = NULL;
view->fail_ttl = 0;
view->failcache = NULL;
result = dns_badcache_init(view->mctx, DNS_VIEW_FAILCACHESIZE,
&view->failcache);
if (result != ISC_R_SUCCESS) {
goto cleanup_dynkeys;
}
view->v6bias = 0;
view->dtenv = NULL;
view->dttypes = 0;
result = isc_mutex_init(&view->new_zone_lock);
if (result != ISC_R_SUCCESS) {
goto cleanup_failcache;
}
if (isc_bind9) {
result = dns_order_create(view->mctx, &view->order);
if (result != ISC_R_SUCCESS)
goto cleanup_new_zone_lock;
}
result = dns_peerlist_new(view->mctx, &view->peers);
if (result != ISC_R_SUCCESS) {
goto cleanup_order;
}
result = dns_aclenv_init(view->mctx, &view->aclenv);
if (result != ISC_R_SUCCESS) {
goto cleanup_peerlist;
}
ISC_LINK_INIT(view, link);
ISC_EVENT_INIT(&view->resevent, sizeof(view->resevent), 0, NULL,
DNS_EVENT_VIEWRESSHUTDOWN, resolver_shutdown,
view, NULL, NULL, NULL);
ISC_EVENT_INIT(&view->adbevent, sizeof(view->adbevent), 0, NULL,
DNS_EVENT_VIEWADBSHUTDOWN, adb_shutdown,
view, NULL, NULL, NULL);
ISC_EVENT_INIT(&view->reqevent, sizeof(view->reqevent), 0, NULL,
DNS_EVENT_VIEWREQSHUTDOWN, req_shutdown,
view, NULL, NULL, NULL);
view->viewlist = NULL;
view->magic = DNS_VIEW_MAGIC;
*viewp = view;
return (ISC_R_SUCCESS);
cleanup_peerlist:
if (view->peers != NULL) {
dns_peerlist_detach(&view->peers);
}
cleanup_order:
if (view->order != NULL) {
dns_order_detach(&view->order);
}
cleanup_new_zone_lock:
DESTROYLOCK(&view->new_zone_lock);
cleanup_failcache:
dns_badcache_destroy(&view->failcache);
cleanup_dynkeys:
if (view->dynamickeys != NULL) {
dns_tsigkeyring_detach(&view->dynamickeys);
}
cleanup_weakrefs:
isc_refcount_decrement(&view->weakrefs, NULL);
isc_refcount_destroy(&view->weakrefs);
cleanup_references:
isc_refcount_decrement(&view->references, NULL);
isc_refcount_destroy(&view->references);
cleanup_fwdtable:
if (view->fwdtable != NULL) {
dns_fwdtable_destroy(&view->fwdtable);
}
cleanup_zt:
if (view->zonetable != NULL) {
dns_zt_detach(&view->zonetable);
}
cleanup_mutex:
DESTROYLOCK(&view->lock);
if (view->nta_file != NULL) {
isc_mem_free(mctx, view->nta_file);
}
cleanup_name:
isc_mem_free(mctx, view->name);
cleanup_view:
isc_mem_putanddetach(&view->mctx, view, sizeof(*view));
return (result);
}
static inline void
destroy(dns_view_t *view) {
dns_dns64_t *dns64;
dns_dlzdb_t *dlzdb;
REQUIRE(!ISC_LINK_LINKED(view, link));
LOCK(&view->lock);
REQUIRE(RESSHUTDOWN(view));
REQUIRE(ADBSHUTDOWN(view));
REQUIRE(REQSHUTDOWN(view));
UNLOCK(&view->lock);
isc_refcount_destroy(&view->references);
isc_refcount_destroy(&view->weakrefs);
if (view->order != NULL)
dns_order_detach(&view->order);
if (view->peers != NULL)
dns_peerlist_detach(&view->peers);
if (view->dynamickeys != NULL) {
isc_result_t result;
char template[PATH_MAX];
char keyfile[PATH_MAX];
FILE *fp = NULL;
result = isc_file_mktemplate(NULL, template, sizeof(template));
if (result == ISC_R_SUCCESS) {
(void)isc_file_openuniqueprivate(template, &fp);
}
if (fp == NULL) {
dns_tsigkeyring_detach(&view->dynamickeys);
} else {
result = dns_tsigkeyring_dumpanddetach
(&view->dynamickeys, fp);
if (result == ISC_R_SUCCESS) {
if (fclose(fp) == 0) {
result = isc_file_sanitize
(NULL, view->name, "tsigkeys",
keyfile, sizeof(keyfile));
if (result == ISC_R_SUCCESS)
result = isc_file_rename
(template, keyfile);
}
if (result != ISC_R_SUCCESS)
(void)remove(template);
} else {
(void)fclose(fp);
(void)remove(template);
}
}
}
if (view->statickeys != NULL)
dns_tsigkeyring_detach(&view->statickeys);
if (view->adb != NULL)
dns_adb_detach(&view->adb);
if (view->resolver != NULL)
dns_resolver_detach(&view->resolver);
if (view->acache != NULL) {
if (view->cachedb != NULL)
dns_acache_putdb(view->acache, view->cachedb);
dns_acache_detach(&view->acache);
}
dns_rrl_view_destroy(view);
if (view->rpzs != NULL)
dns_rpz_detach_rpzs(&view->rpzs);
if (view->catzs != NULL)
dns_catz_catzs_detach(&view->catzs);
for (dlzdb = ISC_LIST_HEAD(view->dlz_searched);
dlzdb != NULL;
dlzdb = ISC_LIST_HEAD(view->dlz_searched)) {
ISC_LIST_UNLINK(view->dlz_searched, dlzdb, link);
dns_dlzdestroy(&dlzdb);
}
for (dlzdb = ISC_LIST_HEAD(view->dlz_unsearched);
dlzdb != NULL;
dlzdb = ISC_LIST_HEAD(view->dlz_unsearched)) {
ISC_LIST_UNLINK(view->dlz_unsearched, dlzdb, link);
dns_dlzdestroy(&dlzdb);
}
if (view->requestmgr != NULL)
dns_requestmgr_detach(&view->requestmgr);
if (view->task != NULL)
isc_task_detach(&view->task);
if (view->hints != NULL)
dns_db_detach(&view->hints);
if (view->cachedb != NULL)
dns_db_detach(&view->cachedb);
if (view->cache != NULL)
dns_cache_detach(&view->cache);
if (view->nocasecompress != NULL)
dns_acl_detach(&view->nocasecompress);
if (view->matchclients != NULL)
dns_acl_detach(&view->matchclients);
if (view->matchdestinations != NULL)
dns_acl_detach(&view->matchdestinations);
if (view->cacheacl != NULL)
dns_acl_detach(&view->cacheacl);
if (view->cacheonacl != NULL)
dns_acl_detach(&view->cacheonacl);
if (view->queryacl != NULL)
dns_acl_detach(&view->queryacl);
if (view->queryonacl != NULL)
dns_acl_detach(&view->queryonacl);
if (view->recursionacl != NULL)
dns_acl_detach(&view->recursionacl);
if (view->recursiononacl != NULL)
dns_acl_detach(&view->recursiononacl);
if (view->sortlist != NULL)
dns_acl_detach(&view->sortlist);
if (view->transferacl != NULL)
dns_acl_detach(&view->transferacl);
if (view->notifyacl != NULL)
dns_acl_detach(&view->notifyacl);
if (view->updateacl != NULL)
dns_acl_detach(&view->updateacl);
if (view->upfwdacl != NULL)
dns_acl_detach(&view->upfwdacl);
if (view->denyansweracl != NULL)
dns_acl_detach(&view->denyansweracl);
if (view->aaaa_acl != NULL)
dns_acl_detach(&view->aaaa_acl);
if (view->answeracl_exclude != NULL)
dns_rbt_destroy(&view->answeracl_exclude);
if (view->denyanswernames != NULL)
dns_rbt_destroy(&view->denyanswernames);
if (view->answernames_exclude != NULL)
dns_rbt_destroy(&view->answernames_exclude);
if (view->delonly != NULL) {
dns_name_t *name;
int i;
for (i = 0; i < DNS_VIEW_DELONLYHASH; i++) {
name = ISC_LIST_HEAD(view->delonly[i]);
while (name != NULL) {
ISC_LIST_UNLINK(view->delonly[i], name, link);
dns_name_free(name, view->mctx);
isc_mem_put(view->mctx, name, sizeof(*name));
name = ISC_LIST_HEAD(view->delonly[i]);
}
}
isc_mem_put(view->mctx, view->delonly, sizeof(dns_namelist_t) *
DNS_VIEW_DELONLYHASH);
view->delonly = NULL;
}
if (view->rootexclude != NULL) {
dns_name_t *name;
int i;
for (i = 0; i < DNS_VIEW_DELONLYHASH; i++) {
name = ISC_LIST_HEAD(view->rootexclude[i]);
while (name != NULL) {
ISC_LIST_UNLINK(view->rootexclude[i],
name, link);
dns_name_free(name, view->mctx);
isc_mem_put(view->mctx, name, sizeof(*name));
name = ISC_LIST_HEAD(view->rootexclude[i]);
}
}
isc_mem_put(view->mctx, view->rootexclude,
sizeof(dns_namelist_t) * DNS_VIEW_DELONLYHASH);
view->rootexclude = NULL;
}
if (view->adbstats != NULL)
isc_stats_detach(&view->adbstats);
if (view->resstats != NULL)
isc_stats_detach(&view->resstats);
if (view->resquerystats != NULL)
dns_stats_detach(&view->resquerystats);
if (view->secroots_priv != NULL)
dns_keytable_detach(&view->secroots_priv);
if (view->ntatable_priv != NULL)
dns_ntatable_detach(&view->ntatable_priv);
for (dns64 = ISC_LIST_HEAD(view->dns64);
dns64 != NULL;
dns64 = ISC_LIST_HEAD(view->dns64)) {
dns_dns64_unlink(&view->dns64, dns64);
dns_dns64_destroy(&dns64);
}
if (view->managed_keys != NULL)
dns_zone_detach(&view->managed_keys);
if (view->redirect != NULL)
dns_zone_detach(&view->redirect);
#ifdef HAVE_DNSTAP
if (view->dtenv != NULL)
dns_dt_detach(&view->dtenv);
#endif /* HAVE_DNSTAP */
dns_view_setnewzones(view, false, NULL, NULL, 0ULL);
if (view->new_zone_file != NULL) {
isc_mem_free(view->mctx, view->new_zone_file);
view->new_zone_file = NULL;
}
#ifdef HAVE_LMDB
if (view->new_zone_dbenv != NULL) {
mdb_env_close((MDB_env *) view->new_zone_dbenv);
view->new_zone_dbenv = NULL;
}
if (view->new_zone_db != NULL) {
isc_mem_free(view->mctx, view->new_zone_db);
view->new_zone_db = NULL;
}
#endif /* HAVE_LMDB */
dns_fwdtable_destroy(&view->fwdtable);
dns_aclenv_destroy(&view->aclenv);
if (view->failcache != NULL)
dns_badcache_destroy(&view->failcache);
DESTROYLOCK(&view->new_zone_lock);
DESTROYLOCK(&view->lock);
isc_refcount_destroy(&view->references);
isc_refcount_destroy(&view->weakrefs);
isc_mem_free(view->mctx, view->nta_file);
isc_mem_free(view->mctx, view->name);
isc_mem_putanddetach(&view->mctx, view, sizeof(*view));
}
void
dns_view_attach(dns_view_t *source, dns_view_t **targetp) {
REQUIRE(DNS_VIEW_VALID(source));
REQUIRE(targetp != NULL && *targetp == NULL);
isc_refcount_increment(&source->references, NULL);
*targetp = source;
}
static void
view_flushanddetach(dns_view_t **viewp, bool flush) {
dns_view_t *view;
unsigned int refs;
REQUIRE(viewp != NULL);
view = *viewp;
*viewp = NULL;
REQUIRE(DNS_VIEW_VALID(view));
if (flush)
view->flush = true;
isc_refcount_decrement(&view->references, &refs);
if (refs == 0) {
dns_zone_t *mkzone = NULL, *rdzone = NULL;
LOCK(&view->lock);
if (!RESSHUTDOWN(view)) {
UNLOCK(&view->lock);
dns_resolver_shutdown(view->resolver);
LOCK(&view->lock);
}
if (!ADBSHUTDOWN(view)) {
UNLOCK(&view->lock);
dns_adb_shutdown(view->adb);
LOCK(&view->lock);
}
if (!REQSHUTDOWN(view)) {
UNLOCK(&view->lock);
dns_requestmgr_shutdown(view->requestmgr);
LOCK(&view->lock);
}
if (view->acache != NULL)
dns_acache_shutdown(view->acache);
if (view->zonetable != NULL) {
if (view->flush)
dns_zt_flushanddetach(&view->zonetable);
else
dns_zt_detach(&view->zonetable);
}
if (view->managed_keys != NULL) {
mkzone = view->managed_keys;
view->managed_keys = NULL;
if (view->flush)
dns_zone_flush(mkzone);
}
if (view->redirect != NULL) {
rdzone = view->redirect;
view->redirect = NULL;
if (view->flush)
dns_zone_flush(rdzone);
}
if (view->catzs != NULL) {
dns_catz_catzs_detach(&view->catzs);
}
if (view->ntatable_priv != NULL) {
dns_ntatable_shutdown(view->ntatable_priv);
}
UNLOCK(&view->lock);
/* Need to detach zones outside view lock */
if (mkzone != NULL)
dns_zone_detach(&mkzone);
if (rdzone != NULL)
dns_zone_detach(&rdzone);
dns_view_weakdetach(&view);
}
}
void
dns_view_flushanddetach(dns_view_t **viewp) {
view_flushanddetach(viewp, true);
}
void
dns_view_detach(dns_view_t **viewp) {
view_flushanddetach(viewp, false);
}
static isc_result_t
dialup(dns_zone_t *zone, void *dummy) {
UNUSED(dummy);
dns_zone_dialup(zone);
return (ISC_R_SUCCESS);
}
void
dns_view_dialup(dns_view_t *view) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->zonetable != NULL);
(void)dns_zt_apply(view->zonetable, false, dialup, NULL);
}
void
dns_view_weakattach(dns_view_t *source, dns_view_t **targetp) {
REQUIRE(DNS_VIEW_VALID(source));
REQUIRE(targetp != NULL && *targetp == NULL);
isc_refcount_increment(&source->weakrefs, NULL);
*targetp = source;
}
void
dns_view_weakdetach(dns_view_t **viewp) {
dns_view_t *view;
unsigned int weakrefs;
REQUIRE(viewp != NULL);
view = *viewp;
REQUIRE(DNS_VIEW_VALID(view));
*viewp = NULL;
isc_refcount_decrement(&view->weakrefs, &weakrefs);
if (weakrefs == 0) {
destroy(view);
}
}
static void
resolver_shutdown(isc_task_t *task, isc_event_t *event) {
dns_view_t *view = event->ev_arg;
REQUIRE(event->ev_type == DNS_EVENT_VIEWRESSHUTDOWN);
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->task == task);
UNUSED(task);
isc_event_free(&event);
LOCK(&view->lock);
view->attributes |= DNS_VIEWATTR_RESSHUTDOWN;
UNLOCK(&view->lock);
dns_view_weakdetach(&view);
}
static void
adb_shutdown(isc_task_t *task, isc_event_t *event) {
dns_view_t *view = event->ev_arg;
REQUIRE(event->ev_type == DNS_EVENT_VIEWADBSHUTDOWN);
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->task == task);
UNUSED(task);
isc_event_free(&event);
LOCK(&view->lock);
view->attributes |= DNS_VIEWATTR_ADBSHUTDOWN;
UNLOCK(&view->lock);
dns_view_weakdetach(&view);
}
static void
req_shutdown(isc_task_t *task, isc_event_t *event) {
dns_view_t *view = event->ev_arg;
REQUIRE(event->ev_type == DNS_EVENT_VIEWREQSHUTDOWN);
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->task == task);
UNUSED(task);
isc_event_free(&event);
LOCK(&view->lock);
view->attributes |= DNS_VIEWATTR_REQSHUTDOWN;
UNLOCK(&view->lock);
dns_view_weakdetach(&view);
}
isc_result_t
dns_view_createzonetable(dns_view_t *view) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(!view->frozen);
REQUIRE(view->zonetable == NULL);
return (dns_zt_create(view->mctx, view->rdclass, &view->zonetable));
}
isc_result_t
dns_view_createresolver(dns_view_t *view,
isc_taskmgr_t *taskmgr,
unsigned int ntasks,
unsigned int ndisp,
isc_socketmgr_t *socketmgr,
isc_timermgr_t *timermgr,
unsigned int options,
dns_dispatchmgr_t *dispatchmgr,
dns_dispatch_t *dispatchv4,
dns_dispatch_t *dispatchv6)
{
isc_result_t result;
isc_event_t *event;
isc_mem_t *mctx = NULL;
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(!view->frozen);
REQUIRE(view->resolver == NULL);
result = isc_task_create(taskmgr, 0, &view->task);
if (result != ISC_R_SUCCESS)
return (result);
isc_task_setname(view->task, "view", view);
result = dns_resolver_create(view, taskmgr, ntasks, ndisp, socketmgr,
timermgr, options, dispatchmgr,
dispatchv4, dispatchv6,
&view->resolver);
if (result != ISC_R_SUCCESS) {
isc_task_detach(&view->task);
return (result);
}
event = &view->resevent;
dns_resolver_whenshutdown(view->resolver, view->task, &event);
view->attributes &= ~DNS_VIEWATTR_RESSHUTDOWN;
isc_refcount_increment(&view->weakrefs, NULL);
result = isc_mem_create(0, 0, &mctx);
if (result != ISC_R_SUCCESS) {
dns_resolver_shutdown(view->resolver);
return (result);
}
result = dns_adb_create(mctx, view, timermgr, taskmgr, &view->adb);
isc_mem_setname(mctx, "ADB", NULL);
isc_mem_detach(&mctx);
if (result != ISC_R_SUCCESS) {
dns_resolver_shutdown(view->resolver);
return (result);
}
event = &view->adbevent;
dns_adb_whenshutdown(view->adb, view->task, &event);
view->attributes &= ~DNS_VIEWATTR_ADBSHUTDOWN;
isc_refcount_increment(&view->weakrefs, NULL);
result = dns_requestmgr_create(view->mctx, timermgr, socketmgr,
dns_resolver_taskmgr(view->resolver),
dns_resolver_dispatchmgr(view->resolver),
dispatchv4, dispatchv6,
&view->requestmgr);
if (result != ISC_R_SUCCESS) {
dns_adb_shutdown(view->adb);
dns_resolver_shutdown(view->resolver);
return (result);
}
event = &view->reqevent;
dns_requestmgr_whenshutdown(view->requestmgr, view->task, &event);
view->attributes &= ~DNS_VIEWATTR_REQSHUTDOWN;
isc_refcount_increment(&view->weakrefs, NULL);
return (ISC_R_SUCCESS);
}
void
dns_view_setcache(dns_view_t *view, dns_cache_t *cache) {
dns_view_setcache2(view, cache, false);
}
void
dns_view_setcache2(dns_view_t *view, dns_cache_t *cache, bool shared) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(!view->frozen);
view->cacheshared = shared;
if (view->cache != NULL) {
if (view->acache != NULL)
dns_acache_putdb(view->acache, view->cachedb);
dns_db_detach(&view->cachedb);
dns_cache_detach(&view->cache);
}
dns_cache_attach(cache, &view->cache);
dns_cache_attachdb(cache, &view->cachedb);
INSIST(DNS_DB_VALID(view->cachedb));
if (view->acache != NULL)
dns_acache_setdb(view->acache, view->cachedb);
}
bool
dns_view_iscacheshared(dns_view_t *view) {
REQUIRE(DNS_VIEW_VALID(view));
return (view->cacheshared);
}
void
dns_view_sethints(dns_view_t *view, dns_db_t *hints) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(!view->frozen);
REQUIRE(view->hints == NULL);
REQUIRE(dns_db_iszone(hints));
dns_db_attach(hints, &view->hints);
}
void
dns_view_setkeyring(dns_view_t *view, dns_tsig_keyring_t *ring) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(ring != NULL);
if (view->statickeys != NULL)
dns_tsigkeyring_detach(&view->statickeys);
dns_tsigkeyring_attach(ring, &view->statickeys);
}
void
dns_view_setdynamickeyring(dns_view_t *view, dns_tsig_keyring_t *ring) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(ring != NULL);
if (view->dynamickeys != NULL)
dns_tsigkeyring_detach(&view->dynamickeys);
dns_tsigkeyring_attach(ring, &view->dynamickeys);
}
void
dns_view_getdynamickeyring(dns_view_t *view, dns_tsig_keyring_t **ringp) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(ringp != NULL && *ringp == NULL);
if (view->dynamickeys != NULL)
dns_tsigkeyring_attach(view->dynamickeys, ringp);
}
void
dns_view_restorekeyring(dns_view_t *view) {
FILE *fp;
char keyfile[PATH_MAX];
isc_result_t result;
REQUIRE(DNS_VIEW_VALID(view));
if (view->dynamickeys != NULL) {
result = isc_file_sanitize(NULL, view->name, "tsigkeys",
keyfile, sizeof(keyfile));
if (result == ISC_R_SUCCESS) {
fp = fopen(keyfile, "r");
if (fp != NULL) {
dns_keyring_restore(view->dynamickeys, fp);
(void)fclose(fp);
}
}
}
}
void
dns_view_setdstport(dns_view_t *view, in_port_t dstport) {
REQUIRE(DNS_VIEW_VALID(view));
view->dstport = dstport;
}
void
dns_view_freeze(dns_view_t *view) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(!view->frozen);
if (view->resolver != NULL) {
INSIST(view->cachedb != NULL);
dns_resolver_freeze(view->resolver);
}
view->frozen = true;
}
void
dns_view_thaw(dns_view_t *view) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->frozen);
view->frozen = false;
}
isc_result_t
dns_view_addzone(dns_view_t *view, dns_zone_t *zone) {
isc_result_t result;
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(!view->frozen);
REQUIRE(view->zonetable != NULL);
result = dns_zt_mount(view->zonetable, zone);
return (result);
}
isc_result_t
dns_view_findzone(dns_view_t *view, dns_name_t *name, dns_zone_t **zonep) {
isc_result_t result;
REQUIRE(DNS_VIEW_VALID(view));
LOCK(&view->lock);
if (view->zonetable != NULL) {
result = dns_zt_find(view->zonetable, name, 0, NULL, zonep);
if (result == DNS_R_PARTIALMATCH) {
dns_zone_detach(zonep);
result = ISC_R_NOTFOUND;
}
} else
result = ISC_R_NOTFOUND;
UNLOCK(&view->lock);
return (result);
}
isc_result_t
dns_view_find(dns_view_t *view, dns_name_t *name, dns_rdatatype_t type,
isc_stdtime_t now, unsigned int options, bool use_hints,
dns_db_t **dbp, dns_dbnode_t **nodep, dns_name_t *foundname,
dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset) {
return (dns_view_find2(view, name, type, now, options, use_hints,
false, dbp, nodep, foundname, rdataset,
sigrdataset));
}
isc_result_t
dns_view_find2(dns_view_t *view, dns_name_t *name, dns_rdatatype_t type,
isc_stdtime_t now, unsigned int options,
bool use_hints, bool use_static_stub,
dns_db_t **dbp, dns_dbnode_t **nodep, dns_name_t *foundname,
dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset)
{
isc_result_t result;
dns_db_t *db, *zdb;
dns_dbnode_t *node, *znode;
bool is_cache, is_staticstub_zone;
dns_rdataset_t zrdataset, zsigrdataset;
dns_zone_t *zone;
/*
* Find an rdataset whose owner name is 'name', and whose type is
* 'type'.
*/
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->frozen);
REQUIRE(type != dns_rdatatype_rrsig);
REQUIRE(rdataset != NULL); /* XXXBEW - remove this */
REQUIRE(nodep == NULL || *nodep == NULL);
/*
* Initialize.
*/
dns_rdataset_init(&zrdataset);
dns_rdataset_init(&zsigrdataset);
zdb = NULL;
znode = NULL;
/*
* Find a database to answer the query.
*/
db = NULL;
node = NULL;
is_staticstub_zone = false;
zone = NULL;
LOCK(&view->lock);
if (view->zonetable != NULL)
result = dns_zt_find(view->zonetable, name, 0, NULL, &zone);
else
result = ISC_R_NOTFOUND;
UNLOCK(&view->lock);
if (zone != NULL && dns_zone_gettype(zone) == dns_zone_staticstub &&
!use_static_stub)
result = ISC_R_NOTFOUND;
if (result == ISC_R_SUCCESS || result == DNS_R_PARTIALMATCH) {
result = dns_zone_getdb(zone, &db);
if (result != ISC_R_SUCCESS && view->cachedb != NULL)
dns_db_attach(view->cachedb, &db);
else if (result != ISC_R_SUCCESS)
goto cleanup;
if (dns_zone_gettype(zone) == dns_zone_staticstub &&
dns_name_equal(name, dns_zone_getorigin(zone))) {
is_staticstub_zone = true;
}
} else if (result == ISC_R_NOTFOUND && view->cachedb != NULL)
dns_db_attach(view->cachedb, &db);
else
goto cleanup;
is_cache = dns_db_iscache(db);
db_find:
/*
* Now look for an answer in the database.
*/
result = dns_db_find(db, name, NULL, type, options,
now, &node, foundname, rdataset, sigrdataset);
if (result == DNS_R_DELEGATION || result == ISC_R_NOTFOUND) {
if (dns_rdataset_isassociated(rdataset))
dns_rdataset_disassociate(rdataset);
if (sigrdataset != NULL &&
dns_rdataset_isassociated(sigrdataset))
dns_rdataset_disassociate(sigrdataset);
if (node != NULL)
dns_db_detachnode(db, &node);
if (!is_cache) {
dns_db_detach(&db);
if (view->cachedb != NULL && !is_staticstub_zone) {
/*
* Either the answer is in the cache, or we
* don't know it.
* Note that if the result comes from a
* static-stub zone we stop the search here
* (see the function description in view.h).
*/
is_cache = true;
dns_db_attach(view->cachedb, &db);
goto db_find;
}
} else {
/*
* We don't have the data in the cache. If we've got
* glue from the zone, use it.
*/
if (dns_rdataset_isassociated(&zrdataset)) {
dns_rdataset_clone(&zrdataset, rdataset);
if (sigrdataset != NULL &&
dns_rdataset_isassociated(&zsigrdataset))
dns_rdataset_clone(&zsigrdataset,
sigrdataset);
result = DNS_R_GLUE;
if (db != NULL)
dns_db_detach(&db);
dns_db_attach(zdb, &db);
dns_db_attachnode(db, znode, &node);
goto cleanup;
}
}
/*
* We don't know the answer.
*/
result = ISC_R_NOTFOUND;
} else if (result == DNS_R_GLUE) {
if (view->cachedb != NULL && !is_staticstub_zone) {
/*
* We found an answer, but the cache may be better.
* Remember what we've got and go look in the cache.
*/
is_cache = true;
dns_rdataset_clone(rdataset, &zrdataset);
dns_rdataset_disassociate(rdataset);
if (sigrdataset != NULL &&
dns_rdataset_isassociated(sigrdataset)) {
dns_rdataset_clone(sigrdataset, &zsigrdataset);
dns_rdataset_disassociate(sigrdataset);
}
dns_db_attach(db, &zdb);
dns_db_attachnode(zdb, node, &znode);
dns_db_detachnode(db, &node);
dns_db_detach(&db);
dns_db_attach(view->cachedb, &db);
goto db_find;
}
/*
* Otherwise, the glue is the best answer.
*/
result = ISC_R_SUCCESS;
}
if (result == ISC_R_NOTFOUND && use_hints && view->hints != NULL) {
if (dns_rdataset_isassociated(rdataset))
dns_rdataset_disassociate(rdataset);
if (sigrdataset != NULL &&
dns_rdataset_isassociated(sigrdataset))
dns_rdataset_disassociate(sigrdataset);
if (db != NULL) {
if (node != NULL)
dns_db_detachnode(db, &node);
dns_db_detach(&db);
}
result = dns_db_find(view->hints, name, NULL, type, options,
now, &node, foundname,
rdataset, sigrdataset);
if (result == ISC_R_SUCCESS || result == DNS_R_GLUE) {
/*
* We just used a hint. Let the resolver know it
* should consider priming.
*/
dns_resolver_prime(view->resolver);
dns_db_attach(view->hints, &db);
result = DNS_R_HINT;
} else if (result == DNS_R_NXRRSET) {
dns_db_attach(view->hints, &db);
result = DNS_R_HINTNXRRSET;
} else if (result == DNS_R_NXDOMAIN)
result = ISC_R_NOTFOUND;
/*
* Cleanup if non-standard hints are used.
*/
if (db == NULL && node != NULL)
dns_db_detachnode(view->hints, &node);
}
cleanup:
if (dns_rdataset_isassociated(&zrdataset)) {
dns_rdataset_disassociate(&zrdataset);
if (dns_rdataset_isassociated(&zsigrdataset))
dns_rdataset_disassociate(&zsigrdataset);
}
if (zdb != NULL) {
if (znode != NULL)
dns_db_detachnode(zdb, &znode);
dns_db_detach(&zdb);
}
if (db != NULL) {
if (node != NULL) {
if (nodep != NULL)
*nodep = node;
else
dns_db_detachnode(db, &node);
}
if (dbp != NULL)
*dbp = db;
else
dns_db_detach(&db);
} else
INSIST(node == NULL);
if (zone != NULL)
dns_zone_detach(&zone);
return (result);
}
isc_result_t
dns_view_simplefind(dns_view_t *view, dns_name_t *name, dns_rdatatype_t type,
isc_stdtime_t now, unsigned int options,
bool use_hints,
dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset)
{
isc_result_t result;
dns_fixedname_t foundname;
dns_fixedname_init(&foundname);
result = dns_view_find(view, name, type, now, options, use_hints,
NULL, NULL, dns_fixedname_name(&foundname),
rdataset, sigrdataset);
if (result == DNS_R_NXDOMAIN) {
/*
* The rdataset and sigrdataset of the relevant NSEC record
* may be returned, but the caller cannot use them because
* foundname is not returned by this simplified API. We
* disassociate them here to prevent any misuse by the caller.
*/
if (dns_rdataset_isassociated(rdataset))
dns_rdataset_disassociate(rdataset);
if (sigrdataset != NULL &&
dns_rdataset_isassociated(sigrdataset))
dns_rdataset_disassociate(sigrdataset);
} else if (result != ISC_R_SUCCESS &&
result != DNS_R_GLUE &&
result != DNS_R_HINT &&
result != DNS_R_NCACHENXDOMAIN &&
result != DNS_R_NCACHENXRRSET &&
result != DNS_R_NXRRSET &&
result != DNS_R_HINTNXRRSET &&
result != ISC_R_NOTFOUND) {
if (dns_rdataset_isassociated(rdataset))
dns_rdataset_disassociate(rdataset);
if (sigrdataset != NULL &&
dns_rdataset_isassociated(sigrdataset))
dns_rdataset_disassociate(sigrdataset);
result = ISC_R_NOTFOUND;
}
return (result);
}
isc_result_t
dns_view_findzonecut(dns_view_t *view, dns_name_t *name, dns_name_t *fname,
isc_stdtime_t now, unsigned int options,
bool use_hints,
dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset)
{
return(dns_view_findzonecut2(view, name, fname, now, options,
use_hints, true,
rdataset, sigrdataset));
}
isc_result_t
dns_view_findzonecut2(dns_view_t *view, dns_name_t *name, dns_name_t *fname,
isc_stdtime_t now, unsigned int options,
bool use_hints, bool use_cache,
dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset)
{
isc_result_t result;
dns_db_t *db;
bool is_cache, use_zone, try_hints;
dns_zone_t *zone;
dns_name_t *zfname;
dns_rdataset_t zrdataset, zsigrdataset;
dns_fixedname_t zfixedname;
unsigned int ztoptions = 0;
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->frozen);
db = NULL;
use_zone = false;
try_hints = false;
zfname = NULL;
/*
* Initialize.
*/
dns_fixedname_init(&zfixedname);
dns_rdataset_init(&zrdataset);
dns_rdataset_init(&zsigrdataset);
/*
* Find the right database.
*/
zone = NULL;
LOCK(&view->lock);
if (view->zonetable != NULL) {
if ((options & DNS_DBFIND_NOEXACT) != 0)
ztoptions |= DNS_ZTFIND_NOEXACT;
result = dns_zt_find(view->zonetable, name, ztoptions,
NULL, &zone);
} else {
result = ISC_R_NOTFOUND;
}
UNLOCK(&view->lock);
if (result == ISC_R_SUCCESS || result == DNS_R_PARTIALMATCH)
result = dns_zone_getdb(zone, &db);
if (result == ISC_R_NOTFOUND) {
/*
* We're not directly authoritative for this query name, nor
* is it a subdomain of any zone for which we're
* authoritative.
*/
if (use_cache && view->cachedb != NULL) {
/*
* We have a cache; try it.
*/
dns_db_attach(view->cachedb, &db);
} else if (use_hints && view->hints != NULL) {
/*
* Maybe we have hints...
*/
try_hints = true;
goto finish;
} else {
result = DNS_R_NXDOMAIN;
goto cleanup;
}
} else if (result != ISC_R_SUCCESS) {
/*
* Something is broken.
*/
goto cleanup;
}
is_cache = dns_db_iscache(db);
db_find:
/*
* Look for the zonecut.
*/
if (!is_cache) {
result = dns_db_find(db, name, NULL, dns_rdatatype_ns, options,
now, NULL, fname, rdataset, sigrdataset);
if (result == DNS_R_DELEGATION)
result = ISC_R_SUCCESS;
else if (result != ISC_R_SUCCESS)
goto cleanup;
if (use_cache && view->cachedb != NULL && db != view->hints) {
/*
* We found an answer, but the cache may be better.
*/
zfname = dns_fixedname_name(&zfixedname);
result = dns_name_copy(fname, zfname, NULL);
if (result != ISC_R_SUCCESS)
goto cleanup;
dns_rdataset_clone(rdataset, &zrdataset);
dns_rdataset_disassociate(rdataset);
if (sigrdataset != NULL &&
dns_rdataset_isassociated(sigrdataset)) {
dns_rdataset_clone(sigrdataset, &zsigrdataset);
dns_rdataset_disassociate(sigrdataset);
}
dns_db_detach(&db);
dns_db_attach(view->cachedb, &db);
is_cache = true;
goto db_find;
}
} else {
result = dns_db_findzonecut(db, name, options, now, NULL,
fname, rdataset, sigrdataset);
if (result == ISC_R_SUCCESS) {
if (zfname != NULL &&
(!dns_name_issubdomain(fname, zfname) ||
(dns_zone_gettype(zone) == dns_zone_staticstub &&
dns_name_equal(fname, zfname)))) {
/*
* We found a zonecut in the cache, but our
* zone delegation is better.
*/
use_zone = true;
}
} else if (result == ISC_R_NOTFOUND) {
if (zfname != NULL) {
/*
* We didn't find anything in the cache, but we
* have a zone delegation, so use it.
*/
use_zone = true;
result = ISC_R_SUCCESS;
} else if (use_hints && view->hints != NULL) {
/*
* Maybe we have hints...
*/
try_hints = true;
result = ISC_R_SUCCESS;
} else {
result = DNS_R_NXDOMAIN;
}
} else {
/*
* Something bad happened.
*/
goto cleanup;
}
}
finish:
if (use_zone) {
if (dns_rdataset_isassociated(rdataset)) {
dns_rdataset_disassociate(rdataset);
if (sigrdataset != NULL &&
dns_rdataset_isassociated(sigrdataset))
dns_rdataset_disassociate(sigrdataset);
}
result = dns_name_copy(zfname, fname, NULL);
if (result != ISC_R_SUCCESS)
goto cleanup;
dns_rdataset_clone(&zrdataset, rdataset);
if (sigrdataset != NULL &&
dns_rdataset_isassociated(&zrdataset))
dns_rdataset_clone(&zsigrdataset, sigrdataset);
} else if (try_hints) {
/*
* We've found nothing so far, but we have hints.
*/
result = dns_db_find(view->hints, dns_rootname, NULL,
dns_rdatatype_ns, 0, now, NULL, fname,
rdataset, NULL);
if (result != ISC_R_SUCCESS) {
/*
* We can't even find the hints for the root
* nameservers!
*/
if (dns_rdataset_isassociated(rdataset))
dns_rdataset_disassociate(rdataset);
result = ISC_R_NOTFOUND;
}
}
cleanup:
if (dns_rdataset_isassociated(&zrdataset)) {
dns_rdataset_disassociate(&zrdataset);
if (dns_rdataset_isassociated(&zsigrdataset))
dns_rdataset_disassociate(&zsigrdataset);
}
if (db != NULL)
dns_db_detach(&db);
if (zone != NULL)
dns_zone_detach(&zone);
return (result);
}
isc_result_t
dns_viewlist_find(dns_viewlist_t *list, const char *name,
dns_rdataclass_t rdclass, dns_view_t **viewp)
{
dns_view_t *view;
REQUIRE(list != NULL);
for (view = ISC_LIST_HEAD(*list);
view != NULL;
view = ISC_LIST_NEXT(view, link)) {
if (strcmp(view->name, name) == 0 && view->rdclass == rdclass)
break;
}
if (view == NULL)
return (ISC_R_NOTFOUND);
dns_view_attach(view, viewp);
return (ISC_R_SUCCESS);
}
isc_result_t
dns_viewlist_findzone(dns_viewlist_t *list, dns_name_t *name,
bool allclasses, dns_rdataclass_t rdclass,
dns_zone_t **zonep)
{
dns_view_t *view;
isc_result_t result;
dns_zone_t *zone1 = NULL, *zone2 = NULL;
dns_zone_t **zp = NULL;
REQUIRE(list != NULL);
REQUIRE(zonep != NULL && *zonep == NULL);
for (view = ISC_LIST_HEAD(*list);
view != NULL;
view = ISC_LIST_NEXT(view, link)) {
if (allclasses == false && view->rdclass != rdclass)
continue;
/*
* If the zone is defined in more than one view,
* treat it as not found.
*/
zp = (zone1 == NULL) ? &zone1 : &zone2;
LOCK(&view->lock);
if (view->zonetable != NULL)
result = dns_zt_find(view->zonetable, name, 0,
NULL, zp);
else
result = ISC_R_NOTFOUND;
UNLOCK(&view->lock);
INSIST(result == ISC_R_SUCCESS ||
result == ISC_R_NOTFOUND ||
result == DNS_R_PARTIALMATCH);
/* Treat a partial match as no match */
if (result == DNS_R_PARTIALMATCH) {
dns_zone_detach(zp);
result = ISC_R_NOTFOUND;
POST(result);
}
if (zone2 != NULL) {
dns_zone_detach(&zone1);
dns_zone_detach(&zone2);
return (ISC_R_MULTIPLE);
}
}
if (zone1 != NULL) {
dns_zone_attach(zone1, zonep);
dns_zone_detach(&zone1);
return (ISC_R_SUCCESS);
}
return (ISC_R_NOTFOUND);
}
isc_result_t
dns_view_load(dns_view_t *view, bool stop) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->zonetable != NULL);
return (dns_zt_load(view->zonetable, stop));
}
isc_result_t
dns_view_loadnew(dns_view_t *view, bool stop) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->zonetable != NULL);
return (dns_zt_loadnew(view->zonetable, stop));
}
isc_result_t
dns_view_asyncload(dns_view_t *view, dns_zt_allloaded_t callback, void *arg) {
return (dns_view_asyncload2(view, callback, arg, false));
}
isc_result_t
dns_view_asyncload2(dns_view_t *view, dns_zt_allloaded_t callback, void *arg,
bool newonly) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->zonetable != NULL);
return (dns_zt_asyncload2(view->zonetable, callback, arg, newonly));
}
isc_result_t
dns_view_gettsig(dns_view_t *view, dns_name_t *keyname, dns_tsigkey_t **keyp)
{
isc_result_t result;
REQUIRE(keyp != NULL && *keyp == NULL);
result = dns_tsigkey_find(keyp, keyname, NULL,
view->statickeys);
if (result == ISC_R_NOTFOUND)
result = dns_tsigkey_find(keyp, keyname, NULL,
view->dynamickeys);
return (result);
}
isc_result_t
dns_view_getpeertsig(dns_view_t *view, isc_netaddr_t *peeraddr,
dns_tsigkey_t **keyp)
{
isc_result_t result;
dns_name_t *keyname = NULL;
dns_peer_t *peer = NULL;
result = dns_peerlist_peerbyaddr(view->peers, peeraddr, &peer);
if (result != ISC_R_SUCCESS)
return (result);
result = dns_peer_getkey(peer, &keyname);
if (result != ISC_R_SUCCESS)
return (result);
result = dns_view_gettsig(view, keyname, keyp);
return ((result == ISC_R_NOTFOUND) ? ISC_R_FAILURE : result);
}
isc_result_t
dns_view_checksig(dns_view_t *view, isc_buffer_t *source, dns_message_t *msg) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(source != NULL);
return (dns_tsig_verify(source, msg, view->statickeys,
view->dynamickeys));
}
isc_result_t
dns_view_dumpdbtostream(dns_view_t *view, FILE *fp) {
isc_result_t result;
REQUIRE(DNS_VIEW_VALID(view));
(void)fprintf(fp, ";\n; Cache dump of view '%s'\n;\n", view->name);
result = dns_master_dumptostream(view->mctx, view->cachedb, NULL,
&dns_master_style_cache, fp);
if (result != ISC_R_SUCCESS)
return (result);
dns_adb_dump(view->adb, fp);
dns_resolver_printbadcache(view->resolver, fp);
dns_badcache_print(view->failcache, "SERVFAIL cache", fp);
return (ISC_R_SUCCESS);
}
isc_result_t
dns_view_flushcache(dns_view_t *view) {
return (dns_view_flushcache2(view, false));
}
isc_result_t
dns_view_flushcache2(dns_view_t *view, bool fixuponly) {
isc_result_t result;
REQUIRE(DNS_VIEW_VALID(view));
if (view->cachedb == NULL)
return (ISC_R_SUCCESS);
if (!fixuponly) {
result = dns_cache_flush(view->cache);
if (result != ISC_R_SUCCESS)
return (result);
}
if (view->acache != NULL)
dns_acache_putdb(view->acache, view->cachedb);
dns_db_detach(&view->cachedb);
dns_cache_attachdb(view->cache, &view->cachedb);
if (view->acache != NULL)
dns_acache_setdb(view->acache, view->cachedb);
if (view->resolver != NULL)
dns_resolver_flushbadcache(view->resolver, NULL);
if (view->failcache != NULL)
dns_badcache_flush(view->failcache);
dns_adb_flush(view->adb);
return (ISC_R_SUCCESS);
}
isc_result_t
dns_view_flushname(dns_view_t *view, dns_name_t *name) {
return (dns_view_flushnode(view, name, false));
}
isc_result_t
dns_view_flushnode(dns_view_t *view, dns_name_t *name, bool tree) {
isc_result_t result = ISC_R_SUCCESS;
REQUIRE(DNS_VIEW_VALID(view));
if (tree) {
if (view->adb != NULL)
dns_adb_flushnames(view->adb, name);
if (view->resolver != NULL)
dns_resolver_flushbadnames(view->resolver, name);
if (view->failcache != NULL)
dns_badcache_flushtree(view->failcache, name);
} else {
if (view->adb != NULL)
dns_adb_flushname(view->adb, name);
if (view->resolver != NULL)
dns_resolver_flushbadcache(view->resolver, name);
if (view->failcache != NULL)
dns_badcache_flushname(view->failcache, name);
}
if (view->cache != NULL)
result = dns_cache_flushnode(view->cache, name, tree);
return (result);
}
isc_result_t
dns_view_adddelegationonly(dns_view_t *view, dns_name_t *name) {
isc_result_t result;
dns_name_t *item;
uint32_t hash;
REQUIRE(DNS_VIEW_VALID(view));
if (view->delonly == NULL) {
view->delonly = isc_mem_get(view->mctx,
sizeof(dns_namelist_t) *
DNS_VIEW_DELONLYHASH);
if (view->delonly == NULL)
return (ISC_R_NOMEMORY);
for (hash = 0; hash < DNS_VIEW_DELONLYHASH; hash++)
ISC_LIST_INIT(view->delonly[hash]);
}
hash = dns_name_hash(name, false) % DNS_VIEW_DELONLYHASH;
item = ISC_LIST_HEAD(view->delonly[hash]);
while (item != NULL && !dns_name_equal(item, name))
item = ISC_LIST_NEXT(item, link);
if (item != NULL)
return (ISC_R_SUCCESS);
item = isc_mem_get(view->mctx, sizeof(*item));
if (item == NULL)
return (ISC_R_NOMEMORY);
dns_name_init(item, NULL);
result = dns_name_dup(name, view->mctx, item);
if (result == ISC_R_SUCCESS)
ISC_LIST_APPEND(view->delonly[hash], item, link);
else
isc_mem_put(view->mctx, item, sizeof(*item));
return (result);
}
isc_result_t
dns_view_excludedelegationonly(dns_view_t *view, dns_name_t *name) {
isc_result_t result;
dns_name_t *item;
uint32_t hash;
REQUIRE(DNS_VIEW_VALID(view));
if (view->rootexclude == NULL) {
view->rootexclude = isc_mem_get(view->mctx,
sizeof(dns_namelist_t) *
DNS_VIEW_DELONLYHASH);
if (view->rootexclude == NULL)
return (ISC_R_NOMEMORY);
for (hash = 0; hash < DNS_VIEW_DELONLYHASH; hash++)
ISC_LIST_INIT(view->rootexclude[hash]);
}
hash = dns_name_hash(name, false) % DNS_VIEW_DELONLYHASH;
item = ISC_LIST_HEAD(view->rootexclude[hash]);
while (item != NULL && !dns_name_equal(item, name))
item = ISC_LIST_NEXT(item, link);
if (item != NULL)
return (ISC_R_SUCCESS);
item = isc_mem_get(view->mctx, sizeof(*item));
if (item == NULL)
return (ISC_R_NOMEMORY);
dns_name_init(item, NULL);
result = dns_name_dup(name, view->mctx, item);
if (result == ISC_R_SUCCESS)
ISC_LIST_APPEND(view->rootexclude[hash], item, link);
else
isc_mem_put(view->mctx, item, sizeof(*item));
return (result);
}
bool
dns_view_isdelegationonly(dns_view_t *view, dns_name_t *name) {
dns_name_t *item;
uint32_t hash;
REQUIRE(DNS_VIEW_VALID(view));
if (!view->rootdelonly && view->delonly == NULL)
return (false);
hash = dns_name_hash(name, false) % DNS_VIEW_DELONLYHASH;
if (view->rootdelonly && dns_name_countlabels(name) <= 2) {
if (view->rootexclude == NULL)
return (true);
item = ISC_LIST_HEAD(view->rootexclude[hash]);
while (item != NULL && !dns_name_equal(item, name))
item = ISC_LIST_NEXT(item, link);
if (item == NULL)
return (true);
}
if (view->delonly == NULL)
return (false);
item = ISC_LIST_HEAD(view->delonly[hash]);
while (item != NULL && !dns_name_equal(item, name))
item = ISC_LIST_NEXT(item, link);
if (item == NULL)
return (false);
return (true);
}
void
dns_view_setrootdelonly(dns_view_t *view, bool value) {
REQUIRE(DNS_VIEW_VALID(view));
view->rootdelonly = value;
}
bool
dns_view_getrootdelonly(dns_view_t *view) {
REQUIRE(DNS_VIEW_VALID(view));
return (view->rootdelonly);
}
isc_result_t
dns_view_freezezones(dns_view_t *view, bool value) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(view->zonetable != NULL);
return (dns_zt_freezezones(view->zonetable, value));
}
void
dns_view_setadbstats(dns_view_t *view, isc_stats_t *stats) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(!view->frozen);
REQUIRE(view->adbstats == NULL);
isc_stats_attach(stats, &view->adbstats);
}
void
dns_view_getadbstats(dns_view_t *view, isc_stats_t **statsp) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(statsp != NULL && *statsp == NULL);
if (view->adbstats != NULL)
isc_stats_attach(view->adbstats, statsp);
}
void
dns_view_setresstats(dns_view_t *view, isc_stats_t *stats) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(!view->frozen);
REQUIRE(view->resstats == NULL);
isc_stats_attach(stats, &view->resstats);
}
void
dns_view_getresstats(dns_view_t *view, isc_stats_t **statsp) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(statsp != NULL && *statsp == NULL);
if (view->resstats != NULL)
isc_stats_attach(view->resstats, statsp);
}
void
dns_view_setresquerystats(dns_view_t *view, dns_stats_t *stats) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(!view->frozen);
REQUIRE(view->resquerystats == NULL);
dns_stats_attach(stats, &view->resquerystats);
}
void
dns_view_getresquerystats(dns_view_t *view, dns_stats_t **statsp) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(statsp != NULL && *statsp == NULL);
if (view->resquerystats != NULL)
dns_stats_attach(view->resquerystats, statsp);
}
isc_result_t
dns_view_initntatable(dns_view_t *view,
isc_taskmgr_t *taskmgr, isc_timermgr_t *timermgr)
{
REQUIRE(DNS_VIEW_VALID(view));
if (view->ntatable_priv != NULL)
dns_ntatable_detach(&view->ntatable_priv);
return (dns_ntatable_create(view, taskmgr, timermgr,
&view->ntatable_priv));
}
isc_result_t
dns_view_getntatable(dns_view_t *view, dns_ntatable_t **ntp) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(ntp != NULL && *ntp == NULL);
if (view->ntatable_priv == NULL)
return (ISC_R_NOTFOUND);
dns_ntatable_attach(view->ntatable_priv, ntp);
return (ISC_R_SUCCESS);
}
isc_result_t
dns_view_initsecroots(dns_view_t *view, isc_mem_t *mctx) {
REQUIRE(DNS_VIEW_VALID(view));
if (view->secroots_priv != NULL)
dns_keytable_detach(&view->secroots_priv);
return (dns_keytable_create(mctx, &view->secroots_priv));
}
isc_result_t
dns_view_getsecroots(dns_view_t *view, dns_keytable_t **ktp) {
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(ktp != NULL && *ktp == NULL);
if (view->secroots_priv == NULL)
return (ISC_R_NOTFOUND);
dns_keytable_attach(view->secroots_priv, ktp);
return (ISC_R_SUCCESS);
}
bool
dns_view_ntacovers(dns_view_t *view, isc_stdtime_t now,
dns_name_t *name, dns_name_t *anchor)
{
REQUIRE(DNS_VIEW_VALID(view));
if (view->ntatable_priv == NULL)
return (false);
return (dns_ntatable_covered(view->ntatable_priv, now, name, anchor));
}
isc_result_t
dns_view_issecuredomain(dns_view_t *view, dns_name_t *name,
isc_stdtime_t now, bool checknta, bool *ntap,
bool *secure_domain)
{
isc_result_t result;
bool secure = false;
dns_fixedname_t fn;
dns_name_t *anchor;
REQUIRE(DNS_VIEW_VALID(view));
if (view->secroots_priv == NULL) {
return (ISC_R_NOTFOUND);
}
anchor = dns_fixedname_initname(&fn);
result = dns_keytable_issecuredomain(view->secroots_priv, name,
anchor, &secure);
if (result != ISC_R_SUCCESS) {
return (result);
}
if (ntap != NULL) {
*ntap = false;
}
if (checknta && secure && view->ntatable_priv != NULL &&
dns_ntatable_covered(view->ntatable_priv, now, name, anchor))
{
if (ntap != NULL) {
*ntap = true;
}
secure = false;
}
*secure_domain = secure;
return (ISC_R_SUCCESS);
}
void
dns_view_untrust(dns_view_t *view, dns_name_t *keyname,
dns_rdata_dnskey_t *dnskey, isc_mem_t *mctx)
{
isc_result_t result;
unsigned char data[4096];
dns_rdata_t rdata = DNS_RDATA_INIT;
isc_buffer_t buffer;
dst_key_t *key = NULL;
dns_keytable_t *sr = NULL;
/*
* Clear the revoke bit, if set, so that the key will match what's
* in secroots now.
*/
dnskey->flags &= ~DNS_KEYFLAG_REVOKE;
/* Convert dnskey to DST key. */
isc_buffer_init(&buffer, data, sizeof(data));
dns_rdata_fromstruct(&rdata, dnskey->common.rdclass,
dns_rdatatype_dnskey, dnskey, &buffer);
result = dns_dnssec_keyfromrdata(keyname, &rdata, mctx, &key);
if (result != ISC_R_SUCCESS)
return;
result = dns_view_getsecroots(view, &sr);
if (result == ISC_R_SUCCESS) {
result = dns_keytable_deletekeynode(sr, key);
/*
* If key was found in secroots, then it was a
* configured trust anchor, and we want to fail
* secure. If there are no other configured keys,
* then leave a null key so that we can't validate
* anymore.
*/
if (result == ISC_R_SUCCESS)
dns_keytable_marksecure(sr, keyname);
dns_keytable_detach(&sr);
}
dst_key_free(&key);
}
isc_result_t
dns_view_setnewzones(dns_view_t *view, bool allow, void *cfgctx,
void (*cfg_destroy)(void **), uint64_t mapsize)
{
isc_result_t result = ISC_R_SUCCESS;
char buffer[1024];
#ifdef HAVE_LMDB
MDB_env *env = NULL;
int status;
#endif
#ifndef HAVE_LMDB
UNUSED(mapsize);
#endif
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE((cfgctx != NULL && cfg_destroy != NULL) || !allow);
if (view->new_zone_file != NULL) {
isc_mem_free(view->mctx, view->new_zone_file);
view->new_zone_file = NULL;
}
#ifdef HAVE_LMDB
if (view->new_zone_dbenv != NULL) {
mdb_env_close((MDB_env *) view->new_zone_dbenv);
view->new_zone_dbenv = NULL;
}
if (view->new_zone_db != NULL) {
isc_mem_free(view->mctx, view->new_zone_db);
view->new_zone_db = NULL;
}
#endif /* HAVE_LMDB */
if (view->new_zone_config != NULL) {
view->cfg_destroy(&view->new_zone_config);
view->cfg_destroy = NULL;
}
if (!allow)
return (ISC_R_SUCCESS);
CHECK(isc_file_sanitize(NULL, view->name, "nzf",
buffer, sizeof(buffer)));
view->new_zone_file = isc_mem_strdup(view->mctx, buffer);
if (view->new_zone_file == NULL) {
CHECK(ISC_R_NOMEMORY);
}
#ifdef HAVE_LMDB
CHECK(isc_file_sanitize(NULL, view->name, "nzd",
buffer, sizeof(buffer)));
view->new_zone_db = isc_mem_strdup(view->mctx, buffer);
if (view->new_zone_db == NULL) {
CHECK(ISC_R_NOMEMORY);
}
status = mdb_env_create(&env);
if (status != MDB_SUCCESS) {
isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
ISC_LOGMODULE_OTHER, ISC_LOG_ERROR,
"mdb_env_create failed: %s",
mdb_strerror(status));
CHECK(ISC_R_FAILURE);
}
if (mapsize != 0ULL) {
status = mdb_env_set_mapsize(env, mapsize);
if (status != MDB_SUCCESS) {
isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
ISC_LOGMODULE_OTHER, ISC_LOG_ERROR,
"mdb_env_set_mapsize failed: %s",
mdb_strerror(status));
CHECK(ISC_R_FAILURE);
}
view->new_zone_mapsize = mapsize;
}
status = mdb_env_open(env, view->new_zone_db, DNS_LMDB_FLAGS, 0600);
if (status != MDB_SUCCESS) {
isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
ISC_LOGMODULE_OTHER, ISC_LOG_ERROR,
"mdb_env_open of '%s' failed: %s",
view->new_zone_db, mdb_strerror(status));
CHECK(ISC_R_FAILURE);
}
view->new_zone_dbenv = env;
env = NULL;
#endif /* HAVE_LMDB */
view->new_zone_config = cfgctx;
view->cfg_destroy = cfg_destroy;
cleanup:
if (result != ISC_R_SUCCESS) {
if (view->new_zone_file != NULL) {
isc_mem_free(view->mctx, view->new_zone_file);
view->new_zone_file = NULL;
}
#ifdef HAVE_LMDB
if (view->new_zone_db != NULL) {
isc_mem_free(view->mctx, view->new_zone_db);
view->new_zone_db = NULL;
}
if (env != NULL) {
mdb_env_close(env);
}
#endif /* HAVE_LMDB */
view->new_zone_config = NULL;
view->cfg_destroy = NULL;
}
return (result);
}
isc_result_t
dns_view_searchdlz(dns_view_t *view, dns_name_t *name, unsigned int minlabels,
dns_clientinfomethods_t *methods,
dns_clientinfo_t *clientinfo,
dns_db_t **dbp)
{
dns_fixedname_t fname;
dns_name_t *zonename;
unsigned int namelabels;
unsigned int i;
isc_result_t result;
dns_dlzfindzone_t findzone;
dns_dlzdb_t *dlzdb;
dns_db_t *db, *best = NULL;
/*
* Performs checks to make sure data is as we expect it to be.
*/
REQUIRE(DNS_VIEW_VALID(view));
REQUIRE(name != NULL);
REQUIRE(dbp != NULL && *dbp == NULL);
/* setup a "fixed" dns name */
zonename = dns_fixedname_initname(&fname);
/* count the number of labels in the name */
namelabels = dns_name_countlabels(name);
for (dlzdb = ISC_LIST_HEAD(view->dlz_searched);
dlzdb != NULL;
dlzdb = ISC_LIST_NEXT(dlzdb, link))
{
REQUIRE(DNS_DLZ_VALID(dlzdb));
/*
* loop through starting with the longest domain name and
* trying shorter names portions of the name until we find a
* match, have an error, or are below the 'minlabels'
* threshold. minlabels is 0, if neither the standard
* database nor any previous DLZ database had a zone name
* match. Otherwise minlabels is the number of labels
* in that name. We need to beat that for a "better"
* match for this DLZ database to be authoritative.
*/
for (i = namelabels; i > minlabels && i > 1; i--) {
if (i == namelabels) {
result = dns_name_copy(name, zonename, NULL);
if (result != ISC_R_SUCCESS)
return (result);
} else
dns_name_split(name, i, NULL, zonename);
/* ask SDLZ driver if the zone is supported */
db = NULL;
findzone = dlzdb->implementation->methods->findzone;
result = (*findzone)(dlzdb->implementation->driverarg,
dlzdb->dbdata, dlzdb->mctx,
view->rdclass, zonename,
methods, clientinfo, &db);
if (result != ISC_R_NOTFOUND) {
if (best != NULL)
dns_db_detach(&best);
if (result == ISC_R_SUCCESS) {
INSIST(db != NULL);
dns_db_attach(db, &best);
dns_db_detach(&db);
minlabels = i;
} else {
if (db != NULL)
dns_db_detach(&db);
break;
}
} else if (db != NULL)
dns_db_detach(&db);
}
}
if (best != NULL) {
dns_db_attach(best, dbp);
dns_db_detach(&best);
return (ISC_R_SUCCESS);
}
return (ISC_R_NOTFOUND);
}
uint32_t
dns_view_getfailttl(dns_view_t *view) {
REQUIRE(DNS_VIEW_VALID(view));
return (view->fail_ttl);
}
void
dns_view_setfailttl(dns_view_t *view, uint32_t fail_ttl) {
REQUIRE(DNS_VIEW_VALID(view));
view->fail_ttl = fail_ttl;
}
isc_result_t
dns_view_saventa(dns_view_t *view) {
isc_result_t result;
bool removefile = false;
dns_ntatable_t *ntatable = NULL;
FILE *fp = NULL;
REQUIRE(DNS_VIEW_VALID(view));
if (view->nta_lifetime == 0)
return (ISC_R_SUCCESS);
/* Open NTA save file for overwrite. */
CHECK(isc_stdio_open(view->nta_file, "w", &fp));
result = dns_view_getntatable(view, &ntatable);
if (result == ISC_R_NOTFOUND) {
removefile = true;
result = ISC_R_SUCCESS;
goto cleanup;
} else
CHECK(result);
result = dns_ntatable_save(ntatable, fp);
if (result == ISC_R_NOTFOUND) {
removefile = true;
result = ISC_R_SUCCESS;
} else if (result == ISC_R_SUCCESS) {
result = isc_stdio_close(fp);
fp = NULL;
}
cleanup:
if (ntatable != NULL)
dns_ntatable_detach(&ntatable);
if (fp != NULL)
(void)isc_stdio_close(fp);
/* Don't leave half-baked NTA save files lying around. */
if (result != ISC_R_SUCCESS || removefile)
(void) isc_file_remove(view->nta_file);
return (result);
}
#define TSTR(t) ((t).value.as_textregion.base)
#define TLEN(t) ((t).value.as_textregion.length)
isc_result_t
dns_view_loadnta(dns_view_t *view) {
isc_result_t result;
dns_ntatable_t *ntatable = NULL;
isc_lex_t *lex = NULL;
isc_token_t token;
isc_stdtime_t now;
REQUIRE(DNS_VIEW_VALID(view));
if (view->nta_lifetime == 0)
return (ISC_R_SUCCESS);
CHECK(isc_lex_create(view->mctx, 1025, &lex));
CHECK(isc_lex_openfile(lex, view->nta_file));
CHECK(dns_view_getntatable(view, &ntatable));
isc_stdtime_get(&now);
for (;;) {
int options = (ISC_LEXOPT_EOL | ISC_LEXOPT_EOF);
char *name, *type, *timestamp;
size_t len;
dns_fixedname_t fn;
dns_name_t *ntaname;
isc_buffer_t b;
isc_stdtime_t t;
bool forced;
CHECK(isc_lex_gettoken(lex, options, &token));
if (token.type == isc_tokentype_eof)
break;
else if (token.type != isc_tokentype_string)
CHECK(ISC_R_UNEXPECTEDTOKEN);
name = TSTR(token);
len = TLEN(token);
if (strcmp(name, ".") == 0)
ntaname = dns_rootname;
else {
ntaname = dns_fixedname_initname(&fn);
isc_buffer_init(&b, name, (unsigned int)len);
isc_buffer_add(&b, (unsigned int)len);
CHECK(dns_name_fromtext(ntaname, &b, dns_rootname,
0, NULL));
}
CHECK(isc_lex_gettoken(lex, options, &token));
if (token.type != isc_tokentype_string)
CHECK(ISC_R_UNEXPECTEDTOKEN);
type = TSTR(token);
if (strcmp(type, "regular") == 0)
forced = false;
else if (strcmp(type, "forced") == 0)
forced = true;
else
CHECK(ISC_R_UNEXPECTEDTOKEN);
CHECK(isc_lex_gettoken(lex, options, &token));
if (token.type != isc_tokentype_string)
CHECK(ISC_R_UNEXPECTEDTOKEN);
timestamp = TSTR(token);
CHECK(dns_time32_fromtext(timestamp, &t));
CHECK(isc_lex_gettoken(lex, options, &token));
if (token.type != isc_tokentype_eol &&
token.type != isc_tokentype_eof)
CHECK(ISC_R_UNEXPECTEDTOKEN);
if (now <= t) {
if (t > (now + 604800))
t = now + 604800;
(void) dns_ntatable_add(ntatable, ntaname,
forced, 0, t);
} else {
char nb[DNS_NAME_FORMATSIZE];
dns_name_format(ntaname, nb, sizeof(nb));
isc_log_write(dns_lctx, DNS_LOGCATEGORY_DNSSEC,
DNS_LOGMODULE_NTA, ISC_LOG_INFO,
"ignoring expired NTA at %s", nb);
}
};
cleanup:
if (ntatable != NULL)
dns_ntatable_detach(&ntatable);
if (lex != NULL) {
isc_lex_close(lex);
isc_lex_destroy(&lex);
}
return (result);
}
void
dns_view_setviewcommit(dns_view_t *view) {
dns_zone_t *redirect = NULL, *managed_keys = NULL;
REQUIRE(DNS_VIEW_VALID(view));
LOCK(&view->lock);
if (view->redirect != NULL) {
dns_zone_attach(view->redirect, &redirect);
}
if (view->managed_keys != NULL) {
dns_zone_attach(view->managed_keys, &managed_keys);
}
if (view->zonetable != NULL) {
dns_zt_setviewcommit(view->zonetable);
}
UNLOCK(&view->lock);
if (redirect != NULL) {
dns_zone_setviewcommit(redirect);
dns_zone_detach(&redirect);
}
if (managed_keys != NULL) {
dns_zone_setviewcommit(managed_keys);
dns_zone_detach(&managed_keys);
}
}
void
dns_view_setviewrevert(dns_view_t *view) {
dns_zone_t *redirect = NULL, *managed_keys = NULL;
dns_zt_t *zonetable;
REQUIRE(DNS_VIEW_VALID(view));
/*
* dns_zt_setviewrevert() attempts to lock this view, so we must
* release the lock.
*/
LOCK(&view->lock);
if (view->redirect != NULL) {
dns_zone_attach(view->redirect, &redirect);
}
if (view->managed_keys != NULL) {
dns_zone_attach(view->managed_keys, &managed_keys);
}
zonetable = view->zonetable;
UNLOCK(&view->lock);
if (redirect != NULL) {
dns_zone_setviewrevert(redirect);
dns_zone_detach(&redirect);
}
if (managed_keys != NULL) {
dns_zone_setviewrevert(managed_keys);
dns_zone_detach(&managed_keys);
}
if (zonetable != NULL) {
dns_zt_setviewrevert(zonetable);
}
}