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Diffstat (limited to 'bin/tests/system/dyndb/driver/instance.c')
| -rw-r--r-- | bin/tests/system/dyndb/driver/instance.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/bin/tests/system/dyndb/driver/instance.c b/bin/tests/system/dyndb/driver/instance.c new file mode 100644 index 0000000..9e90a2c --- /dev/null +++ b/bin/tests/system/dyndb/driver/instance.c @@ -0,0 +1,231 @@ +/* + * 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) 2009-2015 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. + */ + +/* + * Driver instance object. + * + * One instance is equivalent to dynamic-db section in named.conf. + * This module parses arguments and provide high-level operations + * instance init/zone load/instance destroy. + */ + +#include "instance.h" + +#include <isc/task.h> +#include <isc/util.h> + +#include <dns/db.h> +#include <dns/dyndb.h> +#include <dns/fixedname.h> +#include <dns/name.h> +#include <dns/view.h> +#include <dns/zone.h> + +#include "db.h" +#include "log.h" +#include "util.h" +#include "zone.h" + +/* + * Parse parameters and convert them to zone names. Caller has to deallocate + * resulting DNS names. + * + * @param[in] argv NULL-terminated string array of length 2 (excluding NULL) + * Each string has to be a valid DNS name. + * @param[out] z1 Zone name from argv[0] + * @param[out] z2 Zone name from argv[1] + */ +static isc_result_t +parse_params(isc_mem_t *mctx, int argc, char **argv, dns_name_t *z1, + dns_name_t *z2) { + isc_result_t result; + int i; + + REQUIRE(argv != NULL); + REQUIRE(z1 != NULL); + REQUIRE(z2 != NULL); + + for (i = 0; i < argc; i++) { + log_info("param: '%s'", argv[i]); + } + log_info("number of params: %d", i); + + if (argc != 2) { + log_error("exactly two parameters " + "(absolute zone names) are required"); + result = ISC_R_FAILURE; + goto cleanup; + } + result = dns_name_fromstring2(z1, argv[0], dns_rootname, 0, mctx); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "parse_params: dns_name_fromstring2 -> %s", + isc_result_totext(result)); + goto cleanup; + } + result = dns_name_fromstring2(z2, argv[1], dns_rootname, 0, mctx); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "parse_params: dns_name_fromstring2 -> %s", + isc_result_totext(result)); + goto cleanup; + } + + result = ISC_R_SUCCESS; + +cleanup: + return (result); +} + +/* + * Initialize new driver instance. It will not create zones until + * load_sample_instance_zones() is called. + */ +isc_result_t +new_sample_instance(isc_mem_t *mctx, const char *db_name, int argc, char **argv, + const dns_dyndbctx_t *dctx, + sample_instance_t **sample_instp) { + isc_result_t result; + sample_instance_t *inst = NULL; + + REQUIRE(sample_instp != NULL && *sample_instp == NULL); + + CHECKED_MEM_GET_PTR(mctx, inst); + ZERO_PTR(inst); + isc_mem_attach(mctx, &inst->mctx); + + inst->db_name = isc_mem_strdup(mctx, db_name); + + inst->zone1_name = dns_fixedname_initname(&inst->zone1_fn); + inst->zone2_name = dns_fixedname_initname(&inst->zone2_fn); + + result = parse_params(mctx, argc, argv, inst->zone1_name, + inst->zone2_name); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "new_sample_instance: parse_params -> %s", + isc_result_totext(result)); + goto cleanup; + } + + dns_view_attach(dctx->view, &inst->view); + dns_zonemgr_attach(dctx->zmgr, &inst->zmgr); + isc_task_attach(dctx->task, &inst->task); + + /* Register new DNS DB implementation. */ + result = dns_db_register(db_name, create_db, inst, mctx, &inst->db_imp); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "new_sample_instance: dns_db_register -> %s", + isc_result_totext(result)); + goto cleanup; + } + + *sample_instp = inst; + result = ISC_R_SUCCESS; + +cleanup: + if (result != ISC_R_SUCCESS) { + destroy_sample_instance(&inst); + } + return (result); +} + +/* + * Create empty zones, add fake SOA, NS, and A records, load fake zones + * and add them to inst->view. + */ +isc_result_t +load_sample_instance_zones(sample_instance_t *inst) { + isc_result_t result; + + result = create_zone(inst, inst->zone1_name, &inst->zone1); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "load_sample_instance_zones: create_zone -> %s", + isc_result_totext(result)); + goto cleanup; + } + result = activate_zone(inst, inst->zone1); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "load_sample_instance_zones: activate_zone -> %s", + isc_result_totext(result)); + goto cleanup; + } + + result = create_zone(inst, inst->zone2_name, &inst->zone2); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "load_sample_instance_zones: create_zone -> %s", + isc_result_totext(result)); + goto cleanup; + } + result = activate_zone(inst, inst->zone2); + if (result != ISC_R_SUCCESS) { + log_write(ISC_LOG_ERROR, + "load_sample_instance_zones: activate_zone -> %s", + isc_result_totext(result)); + goto cleanup; + } + +cleanup: + return (result); +} + +void +destroy_sample_instance(sample_instance_t **instp) { + sample_instance_t *inst; + REQUIRE(instp != NULL); + + inst = *instp; + *instp = NULL; + if (inst == NULL) { + return; + } + + if (inst->db_name != NULL) { + isc_mem_free(inst->mctx, inst->db_name); + } + if (inst->zone1 != NULL) { + dns_zone_detach(&inst->zone1); + } + if (inst->zone2 != NULL) { + dns_zone_detach(&inst->zone2); + } + if (inst->db_imp != NULL) { + dns_db_unregister(&inst->db_imp); + } + + dns_view_detach(&inst->view); + dns_zonemgr_detach(&inst->zmgr); + isc_task_detach(&inst->task); + + MEM_PUT_AND_DETACH(inst); +} |