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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
commit | 45d6379135504814ab723b57f0eb8be23393a51d (patch) | |
tree | d4f2ec4acca824a8446387a758b0ce4238a4dffa /bin/tests/system/dyndb/driver/zone.c | |
parent | Initial commit. (diff) | |
download | bind9-upstream.tar.xz bind9-upstream.zip |
Adding upstream version 1:9.16.44.upstream/1%9.16.44upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'bin/tests/system/dyndb/driver/zone.c')
-rw-r--r-- | bin/tests/system/dyndb/driver/zone.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/bin/tests/system/dyndb/driver/zone.c b/bin/tests/system/dyndb/driver/zone.c new file mode 100644 index 0000000..7f6e1db --- /dev/null +++ b/bin/tests/system/dyndb/driver/zone.c @@ -0,0 +1,265 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * SPDX-License-Identifier: MPL-2.0 AND 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. + */ + +/* + * Copyright (C) Red Hat + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND AUTHORS DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, + * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * Zone management. + */ + +#include "zone.h" +#include <inttypes.h> +#include <stdbool.h> + +#include <isc/util.h> + +#include <dns/dyndb.h> +#include <dns/view.h> +#include <dns/zone.h> + +#include "instance.h" +#include "lock.h" +#include "log.h" +#include "util.h" + +extern const char *impname; + +/* + * Create a new zone with origin 'name'. The zone stay invisible to clients + * until it is explicitly added to a view. + */ +isc_result_t +create_zone(sample_instance_t *const inst, dns_name_t *const name, + dns_zone_t **const rawp) { + isc_result_t result; + dns_zone_t *raw = NULL; + const char *zone_argv[1]; + char zone_name[DNS_NAME_FORMATSIZE]; + dns_acl_t *acl_any = NULL; + + REQUIRE(inst != NULL); + REQUIRE(name != NULL); + REQUIRE(rawp != NULL && *rawp == NULL); + + zone_argv[0] = inst->db_name; + + result = dns_zone_create(&raw, inst->mctx); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, "create_zone: dns_zone_create -> %s\n", + isc_result_totext(result)); + goto cleanup; + } + result = dns_zone_setorigin(raw, name); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "create_zone: dns_zone_setorigin -> %s\n", + isc_result_totext(result)); + goto cleanup; + } + dns_zone_setclass(raw, dns_rdataclass_in); + dns_zone_settype(raw, dns_zone_primary); + dns_zone_setdbtype(raw, 1, zone_argv); + + result = dns_zonemgr_managezone(inst->zmgr, raw); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "create_zone: dns_zonemgr_managezone -> %s\n", + isc_result_totext(result)); + goto cleanup; + } + + /* This is completely insecure - use some sensible values instead! */ + result = dns_acl_any(inst->mctx, &acl_any); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, "create_zone: dns_acl_any -> %s\n", + isc_result_totext(result)); + goto cleanup; + } + dns_zone_setupdateacl(raw, acl_any); + dns_zone_setqueryacl(raw, acl_any); + dns_zone_setxfracl(raw, acl_any); + dns_acl_detach(&acl_any); + + *rawp = raw; + return (ISC_R_SUCCESS); + +cleanup: + dns_name_format(name, zone_name, DNS_NAME_FORMATSIZE); + log_error_r("failed to create new zone '%s'", zone_name); + + if (raw != NULL) { + if (dns_zone_getmgr(raw) != NULL) { + dns_zonemgr_releasezone(inst->zmgr, raw); + } + dns_zone_detach(&raw); + } + if (acl_any != NULL) { + dns_acl_detach(&acl_any); + } + + return (result); +} + +/* + * Add zone to the view defined in inst->view. This will make the zone visible + * to clients. + */ +static isc_result_t +publish_zone(sample_instance_t *inst, dns_zone_t *zone) { + isc_result_t result; + bool freeze = false; + dns_zone_t *zone_in_view = NULL; + dns_view_t *view_in_zone = NULL; + isc_result_t lock_state = ISC_R_IGNORE; + + REQUIRE(inst != NULL); + REQUIRE(zone != NULL); + + /* Return success if the zone is already in the view as expected. */ + result = dns_view_findzone(inst->view, dns_zone_getorigin(zone), + &zone_in_view); + if (result != ISC_R_SUCCESS && result != ISC_R_NOTFOUND) { + goto cleanup; + } + + view_in_zone = dns_zone_getview(zone); + if (view_in_zone != NULL) { + /* Zone has a view set -> view should contain the same zone. */ + if (zone_in_view == zone) { + /* Zone is already published in the right view. */ + CLEANUP_WITH(ISC_R_SUCCESS); + } else if (view_in_zone != inst->view) { + /* + * Un-published inactive zone will have + * inst->view in zone but will not be present + * in the view itself. + */ + dns_zone_log(zone, ISC_LOG_ERROR, + "zone->view doesn't " + "match data in the view"); + CLEANUP_WITH(ISC_R_UNEXPECTED); + } + } + + if (zone_in_view != NULL) { + dns_zone_log(zone, ISC_LOG_ERROR, + "cannot publish zone: view already " + "contains another zone with this name"); + CLEANUP_WITH(ISC_R_UNEXPECTED); + } + + run_exclusive_enter(inst, &lock_state); + if (inst->view->frozen) { + freeze = true; + dns_view_thaw(inst->view); + } + + dns_zone_setview(zone, inst->view); + result = dns_view_addzone(inst->view, zone); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "publish_zone: dns_view_addzone -> %s\n", + isc_result_totext(result)); + goto cleanup; + } + +cleanup: + if (zone_in_view != NULL) { + dns_zone_detach(&zone_in_view); + } + if (freeze) { + dns_view_freeze(inst->view); + } + run_exclusive_exit(inst, lock_state); + + return (result); +} + +/* + * @warning Never call this on raw part of in-line secure zone, call it only + * on the secure zone! + */ +static isc_result_t +load_zone(dns_zone_t *zone) { + isc_result_t result; + bool zone_dynamic; + uint32_t serial; + + result = dns_zone_load(zone, false); + if (result != ISC_R_SUCCESS && result != DNS_R_UPTODATE && + result != DNS_R_DYNAMIC && result != DNS_R_CONTINUE) + { + goto cleanup; + } + zone_dynamic = (result == DNS_R_DYNAMIC); + + result = dns_zone_getserial(zone, &serial); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "load_zone: dns_zone_getserial -> %s\n", + isc_result_totext(result)); + goto cleanup; + } + dns_zone_log(zone, ISC_LOG_INFO, "loaded serial %u", serial); + + if (zone_dynamic) { + dns_zone_notify(zone); + } + +cleanup: + return (result); +} + +/* + * Add zone to view and call dns_zone_load(). + */ +isc_result_t +activate_zone(sample_instance_t *inst, dns_zone_t *raw) { + isc_result_t result; + + /* + * Zone has to be published *before* zone load + * otherwise it will race with zone->view != NULL check + * in zone_maintenance() in zone.c. + */ + result = publish_zone(inst, raw); + if (result != ISC_R_SUCCESS) { + dns_zone_log(raw, ISC_LOG_ERROR, "cannot add zone to view: %s", + dns_result_totext(result)); + goto cleanup; + } + + result = load_zone(raw); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, "activate_zone: load_zone -> %s\n", + isc_result_totext(result)); + goto cleanup; + } + +cleanup: + return (result); +} |