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-rw-r--r--contrib/sdb/sqlite/README.sdb_sqlite67
-rw-r--r--contrib/sdb/sqlite/sqlitedb.c325
-rw-r--r--contrib/sdb/sqlite/sqlitedb.h15
-rw-r--r--contrib/sdb/sqlite/zone2sqlite.c296
4 files changed, 703 insertions, 0 deletions
diff --git a/contrib/sdb/sqlite/README.sdb_sqlite b/contrib/sdb/sqlite/README.sdb_sqlite
new file mode 100644
index 0000000..36128e1
--- /dev/null
+++ b/contrib/sdb/sqlite/README.sdb_sqlite
@@ -0,0 +1,67 @@
+ SQLite BIND SDB driver
+
+The SQLite BIND SDB "driver" is intended as an alternative both to the
+pgsqldb and dirdb drivers, for situations that would like the management
+simplicity and convenience of single filesystem files, with the additional
+capability of SQL databases. It is also intended as an alternative to
+the standard dynamic DNS update capability in bind, which effectively
+requires use of DNSSEC keys for authorization and is limited to 'nsupdate'
+for updates. An sqlite database, by contrast, uses and requires only
+normal filesystem permissions, and may be updated however a typical SQLite
+database might be updated, e.g., via a web service with an SQLite backend.
+
+This driver is not considered suitable for very high volume public
+nameserver use, while likely useful for smaller private nameserver
+applications, whether or not in a production environment. It should
+generally be suitable wherever SQLite is preferable over larger database
+engines, and not suitable where SQLite is not preferable.
+
+Usage:
+
+o Use the named_sdb process ( put ENABLE_SDB=yes in /etc/sysconfig/named )
+
+o Edit your named.conf to contain a database zone, eg.:
+
+zone "mydomain.net." IN {
+ type master;
+ database "sqlite /etc/named.d/mydomain.db mydomain";
+ # ^- DB file ^-Table
+};
+
+o Create the database zone table
+ The table must contain the columns "name", "rdtype", and "rdata", and
+ is expected to contain a properly constructed zone. The program
+ "zone2sqlite" creates such a table.
+
+ zone2sqlite usage:
+
+ zone2sqlite origin zonefile dbfile dbtable
+
+ where
+ origin : zone origin, eg "mydomain.net."
+ zonefile : master zone database file, eg. mydomain.net.zone
+ dbfile : name of SQLite database file
+ dbtable : name of table in database
+
+---
+# mydomain.net.zone:
+$TTL 1H
+@ SOA localhost. root.localhost. ( 1
+ 3H
+ 1H
+ 1W
+ 1H )
+ NS localhost.
+host1 A 192.168.2.1
+host2 A 192.168.2.2
+host3 A 192.168.2.3
+host4 A 192.168.2.4
+host5 A 192.168.2.5
+host6 A 192.168.2.6
+host7 A 192.168.2.7
+---
+
+# zone2sqlite mydomain.net. mydomain.net.zone mydomain.net.db mydomain
+
+will create/update the 'mydomain' table in database file 'mydomain.net.db'.
+
diff --git a/contrib/sdb/sqlite/sqlitedb.c b/contrib/sdb/sqlite/sqlitedb.c
new file mode 100644
index 0000000..dc93db4
--- /dev/null
+++ b/contrib/sdb/sqlite/sqlitedb.c
@@ -0,0 +1,325 @@
+/*
+ * Copyright (C) 2007, 2016 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 http://mozilla.org/MPL/2.0/.
+ */
+
+
+#include <config.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sqlite3.h>
+
+#include <isc/mem.h>
+#include <isc/print.h>
+#include <isc/result.h>
+#include <isc/util.h>
+
+#include <dns/sdb.h>
+#include <dns/result.h>
+
+#include <named/globals.h>
+
+#include "sqlitedb.h"
+
+/*
+ * A simple database driver that interfaces to a SQLite database.
+ *
+ * The table must contain the fields "name", "rdtype", and "rdata", and
+ * is expected to contain a properly constructed zone. The program "zonetodb"
+ * creates such a table.
+ */
+
+static dns_sdbimplementation_t *sqlitedb = NULL;
+
+typedef struct _dbinfo {
+ sqlite3 *db;
+ char *filename;
+ char *table;
+} dbinfo_t;
+
+
+static isc_result_t
+db_connect(dbinfo_t *dbi)
+{
+ if (sqlite3_open(dbi->filename, &dbi->db) == SQLITE_OK) {
+ return (ISC_R_SUCCESS);
+ } else {
+ /* a connection is returned even if the open fails */
+ sqlite3_close(dbi->db);
+ dbi->db = NULL;
+ return (ISC_R_FAILURE);
+ }
+}
+
+
+typedef struct _lookup_parm_t {
+ int i;
+ dns_sdblookup_t *lookup;
+ isc_result_t result;
+} lookup_parm_t;
+
+
+static int
+sqlitedb_lookup_cb(void *p, int cc, char **cv, char **cn)
+{
+ lookup_parm_t *parm = p;
+ dns_ttl_t ttl;
+ char *endp;
+
+ /* FIXME - check these(num/names); I'm assuming a mapping for now */
+ char *ttlstr = cv[0];
+ char *type = cv[1];
+ char *data = cv[2];
+
+ UNUSED(cc);
+ UNUSED(cn);
+
+ ttl = strtol(ttlstr, &endp, 10);
+ if (*endp) {
+ parm->result = DNS_R_BADTTL;
+ return 1;
+ }
+
+ parm->result = dns_sdb_putrr(parm->lookup, type, ttl, data);
+
+ if (parm->result != ISC_R_SUCCESS)
+ return 1;
+
+ (parm->i)++;
+
+ return 0;
+}
+
+
+#ifdef DNS_CLIENTINFO_VERSION
+static isc_result_t
+sqlitedb_lookup(const char *zone, const char *name, void *dbdata,
+ dns_sdblookup_t *lookup, dns_clientinfomethods_t *methods,
+ dns_clientinfo_t *clientinfo)
+#else
+static isc_result_t
+sqlitedb_lookup(const char *zone, const char *name, void *dbdata,
+ dns_sdblookup_t *lookup)
+#endif /* DNS_CLIENTINFO_VERSION */
+/*
+ * synchronous absolute name lookup
+ */
+{
+ dbinfo_t *dbi = (dbinfo_t *) dbdata;
+ char *sql;
+ lookup_parm_t parm = { 0, lookup, ISC_R_SUCCESS };
+ char *errmsg = NULL;
+ int result;
+
+ UNUSED(zone);
+#ifdef DNS_CLIENTINFO_VERSION
+ UNUSED(methods);
+ UNUSED(clientinfo);
+#endif /* DNS_CLIENTINFO_VERSION */
+
+ sql = sqlite3_mprintf(
+ "SELECT TTL,RDTYPE,RDATA FROM \"%q\" WHERE "
+ "lower(NAME) = lower('%q')",
+ dbi->table, name);
+
+ result = sqlite3_exec(dbi->db, sql,
+ &sqlitedb_lookup_cb, &parm,
+ &errmsg);
+ sqlite3_free(sql);
+
+ if (result != SQLITE_OK)
+ return (ISC_R_FAILURE);
+ if (parm.i == 0)
+ return (ISC_R_NOTFOUND);
+
+ return (ISC_R_SUCCESS);
+}
+
+
+typedef struct _allnodes_parm_t {
+ int i;
+ dns_sdballnodes_t *allnodes;
+ isc_result_t result;
+} allnodes_parm_t;
+
+
+static int
+sqlitedb_allnodes_cb(void *p, int cc, char **cv, char **cn)
+{
+ allnodes_parm_t *parm = p;
+ dns_ttl_t ttl;
+ char *endp;
+
+ /* FIXME - check these(num/names); I'm assuming a mapping for now */
+ char *ttlstr = cv[0];
+ char *name = cv[1];
+ char *type = cv[2];
+ char *data = cv[3];
+
+ UNUSED(cc);
+ UNUSED(cn);
+
+ ttl = strtol(ttlstr, &endp, 10);
+ if (*endp) {
+ parm->result = DNS_R_BADTTL;
+ return 1;
+ }
+
+ parm->result = dns_sdb_putnamedrr(parm->allnodes, name, type, ttl, data);
+
+ if (parm->result != ISC_R_SUCCESS)
+ return 1;
+
+ (parm->i)++;
+
+ return 0;
+}
+
+
+static isc_result_t
+sqlitedb_allnodes(const char *zone,
+ void *dbdata,
+ dns_sdballnodes_t *allnodes)
+{
+ dbinfo_t *dbi = (dbinfo_t *) dbdata;
+ char *sql;
+ allnodes_parm_t parm = { 0, allnodes, ISC_R_SUCCESS };
+ char *errmsg = NULL;
+ int result;
+
+ UNUSED(zone);
+
+ sql = sqlite3_mprintf(
+ "SELECT TTL,NAME,RDTYPE,RDATA FROM \"%q\" ORDER BY NAME",
+ dbi->table);
+
+ result = sqlite3_exec(dbi->db, sql,
+ &sqlitedb_allnodes_cb, &parm,
+ &errmsg);
+ sqlite3_free(sql);
+
+ if (result != SQLITE_OK)
+ return (ISC_R_FAILURE);
+ if (parm.i == 0)
+ return (ISC_R_NOTFOUND);
+
+ return (ISC_R_SUCCESS);
+}
+
+
+static void
+sqlitedb_destroy(const char *zone, void *driverdata, void **dbdata)
+{
+ dbinfo_t *dbi = *dbdata;
+
+ UNUSED(zone);
+ UNUSED(driverdata);
+
+ if (dbi->db != NULL)
+ sqlite3_close(dbi->db);
+ if (dbi->table != NULL)
+ isc_mem_free(ns_g_mctx, dbi->table);
+ if (dbi->filename != NULL)
+ isc_mem_free(ns_g_mctx, dbi->filename);
+
+ isc_mem_put(ns_g_mctx, dbi, sizeof(dbinfo_t));
+}
+
+
+#define STRDUP_OR_FAIL(target, source) \
+ do { \
+ target = isc_mem_strdup(ns_g_mctx, source); \
+ if (target == NULL) { \
+ result = ISC_R_NOMEMORY; \
+ goto cleanup; \
+ } \
+ } while (0);
+
+/*
+ * Create a connection to the database and save any necessary information
+ * in dbdata.
+ *
+ * argv[0] is the name of the database file
+ * argv[1] is the name of the table
+ */
+static isc_result_t
+sqlitedb_create(const char *zone,
+ int argc, char **argv,
+ void *driverdata, void **dbdata)
+{
+ dbinfo_t *dbi;
+ isc_result_t result;
+
+ UNUSED(zone);
+ UNUSED(driverdata);
+
+ if (argc < 2)
+ return (ISC_R_FAILURE);
+
+ dbi = isc_mem_get(ns_g_mctx, sizeof(dbinfo_t));
+ if (dbi == NULL)
+ return (ISC_R_NOMEMORY);
+ dbi->db = NULL;
+ dbi->filename = NULL;
+ dbi->table = NULL;
+
+ STRDUP_OR_FAIL(dbi->filename, argv[0]);
+ STRDUP_OR_FAIL(dbi->table, argv[1]);
+
+ result = db_connect(dbi);
+ if (result != ISC_R_SUCCESS)
+ goto cleanup;
+
+ *dbdata = dbi;
+ return (ISC_R_SUCCESS);
+
+cleanup:
+ sqlitedb_destroy(zone, driverdata, (void **)&dbi);
+ return (result);
+}
+
+
+/*
+ * Since the SQL database corresponds to a zone, the authority data should
+ * be returned by the lookup() function. Therefore the authority() function
+ * is NULL.
+ */
+static dns_sdbmethods_t sqlitedb_methods = {
+ sqlitedb_lookup,
+ NULL, /* authority */
+ sqlitedb_allnodes,
+ sqlitedb_create,
+ sqlitedb_destroy,
+ NULL /* lookup2 */
+};
+
+
+/*
+ * Wrapper around dns_sdb_register().
+ */
+isc_result_t
+sqlitedb_init(void)
+{
+ unsigned int flags;
+ flags = 0;
+ return (dns_sdb_register("sqlite", &sqlitedb_methods, NULL, flags,
+ ns_g_mctx, &sqlitedb));
+}
+
+
+/*
+ * Wrapper around dns_sdb_unregister().
+ */
+void
+sqlitedb_clear(void)
+{
+ if (sqlitedb != NULL)
+ dns_sdb_unregister(&sqlitedb);
+}
diff --git a/contrib/sdb/sqlite/sqlitedb.h b/contrib/sdb/sqlite/sqlitedb.h
new file mode 100644
index 0000000..34f63dc
--- /dev/null
+++ b/contrib/sdb/sqlite/sqlitedb.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2000-2002, 2016 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 http://mozilla.org/MPL/2.0/.
+ */
+
+
+#include <isc/types.h>
+
+isc_result_t sqlitedb_init(void);
+
+void sqlitedb_clear(void);
+
diff --git a/contrib/sdb/sqlite/zone2sqlite.c b/contrib/sdb/sqlite/zone2sqlite.c
new file mode 100644
index 0000000..86d577e
--- /dev/null
+++ b/contrib/sdb/sqlite/zone2sqlite.c
@@ -0,0 +1,296 @@
+/*
+ * Copyright (C) 2007, 2016 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 http://mozilla.org/MPL/2.0/.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <isc/buffer.h>
+#include <isc/mem.h>
+#include <isc/print.h>
+#include <isc/result.h>
+
+#include <dns/db.h>
+#include <dns/dbiterator.h>
+#include <isc/entropy.h>
+#include <dns/fixedname.h>
+#include <isc/hash.h>
+#include <dns/name.h>
+#include <dns/rdata.h>
+#include <dns/rdataset.h>
+#include <dns/rdatasetiter.h>
+#include <dns/rdatatype.h>
+#include <dns/result.h>
+
+#include <sqlite3.h>
+
+#ifndef UNUSED
+#define UNUSED(x) (x) = (x)
+#endif
+
+/*
+ * Generate an SQLite table from a zone.
+ */
+
+typedef struct _dbinfo {
+ sqlite3 *db;
+ char *filename;
+ char *table;
+} dbinfo_t;
+
+dbinfo_t dbi = { NULL, NULL, NULL };
+
+
+static void
+closeandexit(int status)
+{
+ if (dbi.db) {
+ sqlite3_close(dbi.db);
+ dbi.db = NULL;
+ }
+ exit(status);
+}
+
+static void
+check_result(isc_result_t result, const char *message)
+{
+ if (result != ISC_R_SUCCESS) {
+ fprintf(stderr, "%s: %s\n", message,
+ isc_result_totext(result));
+ closeandexit(1);
+ }
+}
+
+static isc_result_t
+db_connect(dbinfo_t *dbi)
+{
+ if (sqlite3_open(dbi->filename, &dbi->db) == SQLITE_OK) {
+ return (ISC_R_SUCCESS);
+ } else {
+ /* a connection is returned even if the open fails */
+ sqlite3_close(dbi->db);
+ dbi->db = NULL;
+ return (ISC_R_FAILURE);
+ }
+}
+
+static int
+add_rdata_cb(void *parm, int cc, char **cv, char **cn)
+{
+ UNUSED(parm);
+ UNUSED(cc);
+ UNUSED(cv);
+ UNUSED(cn);
+
+ return 0;
+}
+
+
+static void
+addrdata(dns_name_t *name, dns_ttl_t ttl, dns_rdata_t *rdata)
+{
+ unsigned char namearray[DNS_NAME_MAXTEXT + 1];
+ unsigned char typearray[20];
+ unsigned char dataarray[2048];
+ isc_buffer_t b;
+ isc_result_t result;
+ char *sql;
+ char *errmsg = NULL;
+ int res;
+
+ isc_buffer_init(&b, namearray, sizeof(namearray) - 1);
+ result = dns_name_totext(name, true, &b);
+ check_result(result, "dns_name_totext");
+ namearray[isc_buffer_usedlength(&b)] = 0;
+
+ isc_buffer_init(&b, typearray, sizeof(typearray) - 1);
+ result = dns_rdatatype_totext(rdata->type, &b);
+ check_result(result, "dns_rdatatype_totext");
+ typearray[isc_buffer_usedlength(&b)] = 0;
+
+ isc_buffer_init(&b, dataarray, sizeof(dataarray) - 1);
+ result = dns_rdata_totext(rdata, NULL, &b);
+ check_result(result, "dns_rdata_totext");
+ dataarray[isc_buffer_usedlength(&b)] = 0;
+
+ sql = sqlite3_mprintf(
+ "INSERT INTO %Q (NAME, TTL, RDTYPE, RDATA)"
+ " VALUES ('%q', %d, '%q', '%q') ",
+ dbi.table,
+ namearray, ttl, typearray, dataarray);
+ printf("%s\n", sql);
+ res = sqlite3_exec(dbi.db, sql, add_rdata_cb, NULL, &errmsg);
+ sqlite3_free(sql);
+
+ if (res != SQLITE_OK) {
+ fprintf(stderr, "INSERT failed: %s\n", errmsg);
+ closeandexit(1);
+ }
+}
+
+int
+main(int argc, char *argv[])
+{
+ char *sql;
+ int res;
+ char *errmsg = NULL;
+ char *porigin, *zonefile;
+ dns_fixedname_t forigin, fname;
+ dns_name_t *origin, *name;
+ dns_db_t *db = NULL;
+ dns_dbiterator_t *dbiter;
+ dns_dbnode_t *node;
+ dns_rdatasetiter_t *rdsiter;
+ dns_rdataset_t rdataset;
+ dns_rdata_t rdata = DNS_RDATA_INIT;
+ isc_mem_t *mctx = NULL;
+ isc_entropy_t *ectx = NULL;
+ isc_buffer_t b;
+ isc_result_t result;
+
+ if (argc != 5) {
+ printf("usage: %s <zone> <zonefile> <dbfile> <dbtable>\n", argv[0]);
+ exit(1);
+ }
+
+ porigin = argv[1];
+ zonefile = argv[2];
+
+ dbi.filename = argv[3];
+ dbi.table = argv[4];
+
+ dns_result_register();
+
+ result = isc_mem_create(0, 0, &mctx);
+ check_result(result, "isc_mem_create");
+ result = isc_entropy_create(mctx, &ectx);
+ check_result(result, "isc_entropy_create");
+ result = isc_hash_create(mctx, ectx, DNS_NAME_MAXWIRE);
+ check_result(result, "isc_hash_create");
+
+ isc_buffer_init(&b, porigin, strlen(porigin));
+ isc_buffer_add(&b, strlen(porigin));
+ origin = dns_fixedname_initname(&forigin);
+ result = dns_name_fromtext(origin, &b, dns_rootname, 0, NULL);
+ check_result(result, "dns_name_fromtext");
+
+ db = NULL;
+ result = dns_db_create(mctx, "rbt", origin, dns_dbtype_zone,
+ dns_rdataclass_in, 0, NULL, &db);
+ check_result(result, "dns_db_create");
+
+ result = dns_db_load(db, zonefile);
+ if (result == DNS_R_SEENINCLUDE)
+ result = ISC_R_SUCCESS;
+ check_result(result, "dns_db_load");
+
+ printf("Connecting to '%s'\n", dbi.filename);
+
+ if ((result = db_connect(&dbi)) != ISC_R_SUCCESS) {
+ fprintf(stderr, "Connection to database '%s' failed\n",
+ dbi.filename);
+ closeandexit(1);
+ }
+
+ sql = sqlite3_mprintf("DROP TABLE %Q ", dbi.table);
+ printf("%s\n", sql);
+ res = sqlite3_exec(dbi.db, sql, NULL, NULL, &errmsg);
+ sqlite3_free(sql);
+#if 0
+ if (res != SQLITE_OK) {
+ fprintf(stderr, "DROP TABLE %s failed: %s\n",
+ dbi.table, errmsg);
+ }
+#endif
+
+#if 0
+ sql = sqlite3_mprintf(sql, "BEGIN TRANSACTION");
+ printf("%s\n", sql);
+ res = sqlite3_exec(dbi.db, sql, NULL, NULL, &errmsg);
+ sqlite3_free(sql);
+ if (res != SQLITE_OK) {
+ fprintf(stderr, "BEGIN TRANSACTION failed: %s\n", errmsg);
+ closeandexit(1);
+ }
+#endif
+
+ sql = sqlite3_mprintf(
+ "CREATE TABLE %Q "
+ "(NAME TEXT, TTL INTEGER, RDTYPE TEXT, RDATA TEXT) ",
+ dbi.table);
+ printf("%s\n", sql);
+ res = sqlite3_exec(dbi.db, sql, NULL, NULL, &errmsg);
+ sqlite3_free(sql);
+ if (res != SQLITE_OK) {
+ fprintf(stderr, "CREATE TABLE %s failed: %s\n",
+ dbi.table, errmsg);
+ closeandexit(1);
+ }
+
+ dbiter = NULL;
+ result = dns_db_createiterator(db, 0, &dbiter);
+ check_result(result, "dns_db_createiterator()");
+
+ result = dns_dbiterator_first(dbiter);
+ check_result(result, "dns_dbiterator_first");
+
+ name = dns_fixedname_initname(&fname);
+ dns_rdataset_init(&rdataset);
+ dns_rdata_init(&rdata);
+
+ while (result == ISC_R_SUCCESS) {
+ node = NULL;
+ result = dns_dbiterator_current(dbiter, &node, name);
+ if (result == ISC_R_NOMORE)
+ break;
+ check_result(result, "dns_dbiterator_current");
+
+ rdsiter = NULL;
+ result = dns_db_allrdatasets(db, node, NULL, 0, &rdsiter);
+ check_result(result, "dns_db_allrdatasets");
+
+ result = dns_rdatasetiter_first(rdsiter);
+
+ while (result == ISC_R_SUCCESS) {
+ dns_rdatasetiter_current(rdsiter, &rdataset);
+ result = dns_rdataset_first(&rdataset);
+ check_result(result, "dns_rdataset_first");
+ while (result == ISC_R_SUCCESS) {
+ dns_rdataset_current(&rdataset, &rdata);
+ addrdata(name, rdataset.ttl, &rdata);
+ dns_rdata_reset(&rdata);
+ result = dns_rdataset_next(&rdataset);
+ }
+ dns_rdataset_disassociate(&rdataset);
+ result = dns_rdatasetiter_next(rdsiter);
+ }
+ dns_rdatasetiter_destroy(&rdsiter);
+ dns_db_detachnode(db, &node);
+ result = dns_dbiterator_next(dbiter);
+ }
+
+#if 0
+ sql = sqlite3_mprintf(sql, "COMMIT TRANSACTION ");
+ printf("%s\n", sql);
+ res = sqlite3_exec(dbi.db, sql, NULL, NULL, &errmsg);
+ sqlite3_free(sql);
+ if (res != SQLITE_OK) {
+ fprintf(stderr, "COMMIT TRANSACTION failed: %s\n", errmsg);
+ closeandexit(1);
+ }
+#endif
+
+ dns_dbiterator_destroy(&dbiter);
+ dns_db_detach(&db);
+ isc_hash_destroy();
+ isc_entropy_detach(&ectx);
+ isc_mem_destroy(&mctx);
+
+ closeandexit(0);
+
+ exit(0);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 09:16:04 +0000