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-rw-r--r--bin/tests/system/dyndb/driver/db.c814
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diff --git a/bin/tests/system/dyndb/driver/db.c b/bin/tests/system/dyndb/driver/db.c
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+/*
+ * 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.
+ */
+
+/*
+ * Database API implementation. The interface is defined in lib/dns/db.h.
+ *
+ * dns_db_*() calls on database instances backed by this driver use
+ * struct sampledb_methods to find appropriate function implementation.
+ *
+ * This example re-uses RBT DB implementation from original BIND and blindly
+ * proxies most of dns_db_*() calls to this underlying RBT DB.
+ * See struct sampledb below.
+ */
+
+#include "db.h"
+#include <inttypes.h>
+#include <stdbool.h>
+
+#include <isc/string.h>
+#include <isc/util.h>
+
+#include <dns/db.h>
+#include <dns/diff.h>
+#include <dns/enumclass.h>
+#include <dns/rbt.h>
+#include <dns/rdatalist.h>
+#include <dns/rdatastruct.h>
+#include <dns/soa.h>
+#include <dns/types.h>
+
+#include "instance.h"
+#include "syncptr.h"
+#include "util.h"
+
+#define SAMPLEDB_MAGIC ISC_MAGIC('S', 'M', 'D', 'B')
+#define VALID_SAMPLEDB(sampledb) \
+ ((sampledb) != NULL && (sampledb)->common.impmagic == SAMPLEDB_MAGIC)
+
+struct sampledb {
+ dns_db_t common;
+ isc_refcount_t refs;
+ sample_instance_t *inst;
+
+ /*
+ * Internal RBT database implementation provided by BIND.
+ * Most dns_db_* calls (find(), createiterator(), etc.)
+ * are blindly forwarded to this RBT DB.
+ */
+ dns_db_t *rbtdb;
+};
+
+typedef struct sampledb sampledb_t;
+
+/*
+ * Get full DNS name from the node.
+ *
+ * @warning
+ * The code silently expects that "node" came from RBTDB and thus
+ * assumption dns_dbnode_t (from RBTDB) == dns_rbtnode_t is correct.
+ *
+ * This should work as long as we use only RBTDB and nothing else.
+ */
+static isc_result_t
+sample_name_fromnode(dns_dbnode_t *node, dns_name_t *name) {
+ dns_rbtnode_t *rbtnode = (dns_rbtnode_t *)node;
+ return (dns_rbt_fullnamefromnode(rbtnode, name));
+}
+
+static void
+attach(dns_db_t *source, dns_db_t **targetp) {
+ sampledb_t *sampledb = (sampledb_t *)source;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ isc_refcount_increment(&sampledb->refs);
+ *targetp = source;
+}
+
+static void
+free_sampledb(sampledb_t *sampledb) {
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_detach(&sampledb->rbtdb);
+ dns_name_free(&sampledb->common.origin, sampledb->common.mctx);
+ isc_mem_putanddetach(&sampledb->common.mctx, sampledb,
+ sizeof(*sampledb));
+}
+
+static void
+detach(dns_db_t **dbp) {
+ REQUIRE(dbp != NULL && VALID_SAMPLEDB((sampledb_t *)(*dbp)));
+ sampledb_t *sampledb = (sampledb_t *)(*dbp);
+ *dbp = NULL;
+
+ if (isc_refcount_decrement(&sampledb->refs) == 1) {
+ free_sampledb(sampledb);
+ }
+}
+
+/*
+ * This method should never be called, because DB is "persistent".
+ * See ispersistent() function. It means that database do not need to be
+ * loaded in the usual sense.
+ */
+static isc_result_t
+beginload(dns_db_t *db, dns_rdatacallbacks_t *callbacks) {
+ UNUSED(db);
+ UNUSED(callbacks);
+
+ fatal_error("current implementation should never call beginload()");
+
+ /* Not reached */
+ return (ISC_R_SUCCESS);
+}
+
+/*
+ * This method should never be called, because DB is "persistent".
+ * See ispersistent() function. It means that database do not need to be
+ * loaded in the usual sense.
+ */
+static isc_result_t
+endload(dns_db_t *db, dns_rdatacallbacks_t *callbacks) {
+ UNUSED(db);
+ UNUSED(callbacks);
+
+ fatal_error("current implementation should never call endload()");
+
+ /* Not reached */
+ return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+serialize(dns_db_t *db, dns_dbversion_t *version, FILE *file) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_serialize(sampledb->rbtdb, version, file));
+}
+
+static isc_result_t
+dump(dns_db_t *db, dns_dbversion_t *version, const char *filename,
+ dns_masterformat_t masterformat) {
+ UNUSED(db);
+ UNUSED(version);
+ UNUSED(filename);
+ UNUSED(masterformat);
+
+ fatal_error("current implementation should never call dump()");
+
+ /* Not reached */
+ return (ISC_R_SUCCESS);
+}
+
+static void
+currentversion(dns_db_t *db, dns_dbversion_t **versionp) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_currentversion(sampledb->rbtdb, versionp);
+}
+
+static isc_result_t
+newversion(dns_db_t *db, dns_dbversion_t **versionp) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_newversion(sampledb->rbtdb, versionp));
+}
+
+static void
+attachversion(dns_db_t *db, dns_dbversion_t *source,
+ dns_dbversion_t **targetp) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_attachversion(sampledb->rbtdb, source, targetp);
+}
+
+static void
+closeversion(dns_db_t *db, dns_dbversion_t **versionp, bool commit) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_closeversion(sampledb->rbtdb, versionp, commit);
+}
+
+static isc_result_t
+findnode(dns_db_t *db, const dns_name_t *name, bool create,
+ dns_dbnode_t **nodep) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_findnode(sampledb->rbtdb, name, create, nodep));
+}
+
+static isc_result_t
+find(dns_db_t *db, const dns_name_t *name, dns_dbversion_t *version,
+ dns_rdatatype_t type, unsigned int options, isc_stdtime_t now,
+ dns_dbnode_t **nodep, dns_name_t *foundname, dns_rdataset_t *rdataset,
+ dns_rdataset_t *sigrdataset) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_find(sampledb->rbtdb, name, version, type, options, now,
+ nodep, foundname, rdataset, sigrdataset));
+}
+
+static isc_result_t
+findzonecut(dns_db_t *db, const dns_name_t *name, unsigned int options,
+ isc_stdtime_t now, dns_dbnode_t **nodep, dns_name_t *foundname,
+ dns_name_t *dcname, dns_rdataset_t *rdataset,
+ dns_rdataset_t *sigrdataset) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_findzonecut(sampledb->rbtdb, name, options, now, nodep,
+ foundname, dcname, rdataset, sigrdataset));
+}
+
+static void
+attachnode(dns_db_t *db, dns_dbnode_t *source, dns_dbnode_t **targetp) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_attachnode(sampledb->rbtdb, source, targetp);
+}
+
+static void
+detachnode(dns_db_t *db, dns_dbnode_t **targetp) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_detachnode(sampledb->rbtdb, targetp);
+}
+
+static isc_result_t
+expirenode(dns_db_t *db, dns_dbnode_t *node, isc_stdtime_t now) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_expirenode(sampledb->rbtdb, node, now));
+}
+
+static void
+printnode(dns_db_t *db, dns_dbnode_t *node, FILE *out) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_printnode(sampledb->rbtdb, node, out);
+}
+
+static isc_result_t
+createiterator(dns_db_t *db, unsigned int options,
+ dns_dbiterator_t **iteratorp) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_createiterator(sampledb->rbtdb, options, iteratorp));
+}
+
+static isc_result_t
+findrdataset(dns_db_t *db, dns_dbnode_t *node, dns_dbversion_t *version,
+ dns_rdatatype_t type, dns_rdatatype_t covers, isc_stdtime_t now,
+ dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_findrdataset(sampledb->rbtdb, node, version, type,
+ covers, now, rdataset, sigrdataset));
+}
+
+static isc_result_t
+allrdatasets(dns_db_t *db, dns_dbnode_t *node, dns_dbversion_t *version,
+ unsigned int options, isc_stdtime_t now,
+ dns_rdatasetiter_t **iteratorp) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_allrdatasets(sampledb->rbtdb, node, version, options,
+ now, iteratorp));
+}
+
+static isc_result_t
+addrdataset(dns_db_t *db, dns_dbnode_t *node, dns_dbversion_t *version,
+ isc_stdtime_t now, dns_rdataset_t *rdataset, unsigned int options,
+ dns_rdataset_t *addedrdataset) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+ isc_result_t result;
+ dns_fixedname_t name;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_fixedname_init(&name);
+ CHECK(dns_db_addrdataset(sampledb->rbtdb, node, version, now, rdataset,
+ options, addedrdataset));
+ if (rdataset->type == dns_rdatatype_a ||
+ rdataset->type == dns_rdatatype_aaaa)
+ {
+ CHECK(sample_name_fromnode(node, dns_fixedname_name(&name)));
+ CHECK(syncptrs(sampledb->inst, dns_fixedname_name(&name),
+ rdataset, DNS_DIFFOP_ADD));
+ }
+
+cleanup:
+ return (result);
+}
+
+static isc_result_t
+subtractrdataset(dns_db_t *db, dns_dbnode_t *node, dns_dbversion_t *version,
+ dns_rdataset_t *rdataset, unsigned int options,
+ dns_rdataset_t *newrdataset) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+ isc_result_t result;
+ dns_fixedname_t name;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_fixedname_init(&name);
+ result = dns_db_subtractrdataset(sampledb->rbtdb, node, version,
+ rdataset, options, newrdataset);
+ if (result != ISC_R_SUCCESS && result != DNS_R_NXRRSET) {
+ goto cleanup;
+ }
+
+ if (rdataset->type == dns_rdatatype_a ||
+ rdataset->type == dns_rdatatype_aaaa)
+ {
+ CHECK(sample_name_fromnode(node, dns_fixedname_name(&name)));
+ CHECK(syncptrs(sampledb->inst, dns_fixedname_name(&name),
+ rdataset, DNS_DIFFOP_DEL));
+ }
+
+cleanup:
+ return (result);
+}
+
+/*
+ * deleterdataset() function is not used during DNS update processing so syncptr
+ * implementation is left as an exercise to the reader.
+ */
+static isc_result_t
+deleterdataset(dns_db_t *db, dns_dbnode_t *node, dns_dbversion_t *version,
+ dns_rdatatype_t type, dns_rdatatype_t covers) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_deleterdataset(sampledb->rbtdb, node, version, type,
+ covers));
+}
+
+static bool
+issecure(dns_db_t *db) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_issecure(sampledb->rbtdb));
+}
+
+static unsigned int
+nodecount(dns_db_t *db) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_nodecount(sampledb->rbtdb));
+}
+
+/*
+ * The database does not need to be loaded from disk or written to disk.
+ * Always return true.
+ */
+static bool
+ispersistent(dns_db_t *db) {
+ UNUSED(db);
+
+ return (true);
+}
+
+static void
+overmem(dns_db_t *db, bool over) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_overmem(sampledb->rbtdb, over);
+}
+
+static void
+settask(dns_db_t *db, isc_task_t *task) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_settask(sampledb->rbtdb, task);
+}
+
+static isc_result_t
+getoriginnode(dns_db_t *db, dns_dbnode_t **nodep) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_getoriginnode(sampledb->rbtdb, nodep));
+}
+
+static void
+transfernode(dns_db_t *db, dns_dbnode_t **sourcep, dns_dbnode_t **targetp) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_transfernode(sampledb->rbtdb, sourcep, targetp);
+}
+
+static isc_result_t
+getnsec3parameters(dns_db_t *db, dns_dbversion_t *version, dns_hash_t *hash,
+ uint8_t *flags, uint16_t *iterations, unsigned char *salt,
+ size_t *salt_length) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_getnsec3parameters(sampledb->rbtdb, version, hash, flags,
+ iterations, salt, salt_length));
+}
+
+static isc_result_t
+findnsec3node(dns_db_t *db, const dns_name_t *name, bool create,
+ dns_dbnode_t **nodep) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_findnsec3node(sampledb->rbtdb, name, create, nodep));
+}
+
+static isc_result_t
+setsigningtime(dns_db_t *db, dns_rdataset_t *rdataset, isc_stdtime_t resign) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_setsigningtime(sampledb->rbtdb, rdataset, resign));
+}
+
+static isc_result_t
+getsigningtime(dns_db_t *db, dns_rdataset_t *rdataset, dns_name_t *name) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_getsigningtime(sampledb->rbtdb, rdataset, name));
+}
+
+static void
+resigned(dns_db_t *db, dns_rdataset_t *rdataset, dns_dbversion_t *version) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ dns_db_resigned(sampledb->rbtdb, rdataset, version);
+}
+
+static bool
+isdnssec(dns_db_t *db) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_isdnssec(sampledb->rbtdb));
+}
+
+static dns_stats_t *
+getrrsetstats(dns_db_t *db) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_getrrsetstats(sampledb->rbtdb));
+}
+
+static isc_result_t
+findnodeext(dns_db_t *db, const dns_name_t *name, bool create,
+ dns_clientinfomethods_t *methods, dns_clientinfo_t *clientinfo,
+ dns_dbnode_t **nodep) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_findnodeext(sampledb->rbtdb, name, create, methods,
+ clientinfo, nodep));
+}
+
+static isc_result_t
+findext(dns_db_t *db, const dns_name_t *name, dns_dbversion_t *version,
+ dns_rdatatype_t type, unsigned int options, isc_stdtime_t now,
+ dns_dbnode_t **nodep, dns_name_t *foundname,
+ dns_clientinfomethods_t *methods, dns_clientinfo_t *clientinfo,
+ dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_findext(sampledb->rbtdb, name, version, type, options,
+ now, nodep, foundname, methods, clientinfo,
+ rdataset, sigrdataset));
+}
+
+static isc_result_t
+setcachestats(dns_db_t *db, isc_stats_t *stats) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_setcachestats(sampledb->rbtdb, stats));
+}
+
+static size_t
+hashsize(dns_db_t *db) {
+ sampledb_t *sampledb = (sampledb_t *)db;
+
+ REQUIRE(VALID_SAMPLEDB(sampledb));
+
+ return (dns_db_hashsize(sampledb->rbtdb));
+}
+
+/*
+ * DB interface definition. Database driver uses this structure to
+ * determine which implementation of dns_db_*() function to call.
+ */
+static dns_dbmethods_t sampledb_methods = {
+ attach,
+ detach,
+ beginload,
+ endload,
+ serialize,
+ dump,
+ currentversion,
+ newversion,
+ attachversion,
+ closeversion,
+ findnode,
+ find,
+ findzonecut,
+ attachnode,
+ detachnode,
+ expirenode,
+ printnode,
+ createiterator,
+ findrdataset,
+ allrdatasets,
+ addrdataset,
+ subtractrdataset,
+ deleterdataset,
+ issecure,
+ nodecount,
+ ispersistent,
+ overmem,
+ settask,
+ getoriginnode,
+ transfernode,
+ getnsec3parameters,
+ findnsec3node,
+ setsigningtime,
+ getsigningtime,
+ resigned,
+ isdnssec,
+ getrrsetstats,
+ NULL, /* rpz_attach */
+ NULL, /* rpz_ready */
+ findnodeext,
+ findext,
+ setcachestats,
+ hashsize,
+ NULL, /* nodefullname */
+ NULL, /* getsize */
+ NULL, /* setservestalettl */
+ NULL, /* getservestalettl */
+ NULL, /* setservestalerefresh */
+ NULL, /* getservestalerefresh */
+ NULL, /* setgluecachestats */
+ NULL /* adjusthashsize */
+};
+
+/* Auxiliary driver functions. */
+
+/*
+ * Auxiliary functions add_*() create minimal database which can be loaded.
+ * This is necessary because this driver create empty 'fake' zone which
+ * is not loaded from disk so there is no way for user to supply SOA, NS and A
+ * records.
+ *
+ * Following functions were copied from BIND 9.10.2rc1 named/server.c,
+ * credit goes to ISC.
+ */
+static isc_result_t
+add_soa(dns_db_t *db, dns_dbversion_t *version, const dns_name_t *name,
+ const dns_name_t *origin, const dns_name_t *contact) {
+ dns_dbnode_t *node = NULL;
+ dns_rdata_t rdata = DNS_RDATA_INIT;
+ dns_rdatalist_t rdatalist;
+ dns_rdataset_t rdataset;
+ isc_result_t result;
+ unsigned char buf[DNS_SOA_BUFFERSIZE];
+
+ dns_rdataset_init(&rdataset);
+ dns_rdatalist_init(&rdatalist);
+ CHECK(dns_soa_buildrdata(origin, contact, dns_db_class(db), 0, 28800,
+ 7200, 604800, 86400, buf, &rdata));
+ rdatalist.type = rdata.type;
+ rdatalist.covers = 0;
+ rdatalist.rdclass = rdata.rdclass;
+ rdatalist.ttl = 86400;
+ ISC_LIST_APPEND(rdatalist.rdata, &rdata, link);
+ CHECK(dns_rdatalist_tordataset(&rdatalist, &rdataset));
+ CHECK(dns_db_findnode(db, name, true, &node));
+ CHECK(dns_db_addrdataset(db, node, version, 0, &rdataset, 0, NULL));
+cleanup:
+ if (node != NULL) {
+ dns_db_detachnode(db, &node);
+ }
+ return (result);
+}
+
+static isc_result_t
+add_ns(dns_db_t *db, dns_dbversion_t *version, const dns_name_t *name,
+ const dns_name_t *nsname) {
+ dns_dbnode_t *node = NULL;
+ dns_rdata_ns_t ns;
+ dns_rdata_t rdata = DNS_RDATA_INIT;
+ dns_rdatalist_t rdatalist;
+ dns_rdataset_t rdataset;
+ isc_result_t result;
+ isc_buffer_t b;
+ unsigned char buf[DNS_NAME_MAXWIRE];
+
+ isc_buffer_init(&b, buf, sizeof(buf));
+
+ dns_rdataset_init(&rdataset);
+ dns_rdatalist_init(&rdatalist);
+ ns.common.rdtype = dns_rdatatype_ns;
+ ns.common.rdclass = dns_db_class(db);
+ ns.mctx = NULL;
+ dns_name_init(&ns.name, NULL);
+ dns_name_clone(nsname, &ns.name);
+ CHECK(dns_rdata_fromstruct(&rdata, dns_db_class(db), dns_rdatatype_ns,
+ &ns, &b));
+ rdatalist.type = rdata.type;
+ rdatalist.covers = 0;
+ rdatalist.rdclass = rdata.rdclass;
+ rdatalist.ttl = 86400;
+ ISC_LIST_APPEND(rdatalist.rdata, &rdata, link);
+ CHECK(dns_rdatalist_tordataset(&rdatalist, &rdataset));
+ CHECK(dns_db_findnode(db, name, true, &node));
+ CHECK(dns_db_addrdataset(db, node, version, 0, &rdataset, 0, NULL));
+cleanup:
+ if (node != NULL) {
+ dns_db_detachnode(db, &node);
+ }
+ return (result);
+}
+
+static isc_result_t
+add_a(dns_db_t *db, dns_dbversion_t *version, const dns_name_t *name,
+ struct in_addr addr) {
+ dns_dbnode_t *node = NULL;
+ dns_rdata_in_a_t a;
+ dns_rdata_t rdata = DNS_RDATA_INIT;
+ dns_rdatalist_t rdatalist;
+ dns_rdataset_t rdataset;
+ isc_result_t result;
+ isc_buffer_t b;
+ unsigned char buf[DNS_NAME_MAXWIRE];
+
+ isc_buffer_init(&b, buf, sizeof(buf));
+
+ dns_rdataset_init(&rdataset);
+ dns_rdatalist_init(&rdatalist);
+ a.common.rdtype = dns_rdatatype_a;
+ a.common.rdclass = dns_db_class(db);
+ a.in_addr = addr;
+ CHECK(dns_rdata_fromstruct(&rdata, dns_db_class(db), dns_rdatatype_a,
+ &a, &b));
+ rdatalist.type = rdata.type;
+ rdatalist.covers = 0;
+ rdatalist.rdclass = rdata.rdclass;
+ rdatalist.ttl = 86400;
+ ISC_LIST_APPEND(rdatalist.rdata, &rdata, link);
+ CHECK(dns_rdatalist_tordataset(&rdatalist, &rdataset));
+ CHECK(dns_db_findnode(db, name, true, &node));
+ CHECK(dns_db_addrdataset(db, node, version, 0, &rdataset, 0, NULL));
+cleanup:
+ if (node != NULL) {
+ dns_db_detachnode(db, &node);
+ }
+ return (result);
+}
+
+/*
+ * Driver-specific implementation of dns_db_create().
+ *
+ * @param[in] argv Database-specific parameters from dns_db_create().
+ * @param[in] driverarg Driver-specific parameter from dns_db_register().
+ */
+isc_result_t
+create_db(isc_mem_t *mctx, const dns_name_t *origin, dns_dbtype_t type,
+ dns_rdataclass_t rdclass, unsigned int argc, char *argv[],
+ void *driverarg, dns_db_t **dbp) {
+ sampledb_t *sampledb = NULL;
+ isc_result_t result;
+ dns_dbversion_t *version = NULL;
+ struct in_addr a_addr;
+
+ REQUIRE(type == dns_dbtype_zone);
+ REQUIRE(rdclass == dns_rdataclass_in);
+ REQUIRE(argc == 0);
+ REQUIRE(argv != NULL);
+ REQUIRE(driverarg != NULL); /* pointer to driver instance */
+ REQUIRE(dbp != NULL && *dbp == NULL);
+
+ UNUSED(driverarg); /* no driver-specific configuration */
+
+ a_addr.s_addr = 0x0100007fU;
+
+ CHECKED_MEM_GET_PTR(mctx, sampledb);
+ ZERO_PTR(sampledb);
+
+ isc_mem_attach(mctx, &sampledb->common.mctx);
+ dns_name_init(&sampledb->common.origin, NULL);
+
+ sampledb->common.magic = DNS_DB_MAGIC;
+ sampledb->common.impmagic = SAMPLEDB_MAGIC;
+
+ sampledb->common.methods = &sampledb_methods;
+ sampledb->common.attributes = 0;
+ sampledb->common.rdclass = rdclass;
+
+ CHECK(dns_name_dupwithoffsets(origin, mctx, &sampledb->common.origin));
+
+ isc_refcount_init(&sampledb->refs, 1);
+
+ /* Translate instance name to instance pointer. */
+ sampledb->inst = driverarg;
+
+ /* Create internal instance of RBT DB implementation from BIND. */
+ CHECK(dns_db_create(mctx, "rbt", origin, dns_dbtype_zone,
+ dns_rdataclass_in, 0, NULL, &sampledb->rbtdb));
+
+ /* Create fake SOA, NS, and A records to make database loadable. */
+ CHECK(dns_db_newversion(sampledb->rbtdb, &version));
+ CHECK(add_soa(sampledb->rbtdb, version, origin, origin, origin));
+ CHECK(add_ns(sampledb->rbtdb, version, origin, origin));
+ CHECK(add_a(sampledb->rbtdb, version, origin, a_addr));
+ dns_db_closeversion(sampledb->rbtdb, &version, true);
+
+ *dbp = (dns_db_t *)sampledb;
+
+ return (ISC_R_SUCCESS);
+
+cleanup:
+ if (sampledb != NULL) {
+ if (dns_name_dynamic(&sampledb->common.origin)) {
+ dns_name_free(&sampledb->common.origin, mctx);
+ }
+
+ isc_mem_putanddetach(&sampledb->common.mctx, sampledb,
+ sizeof(*sampledb));
+ }
+
+ return (result);
+}