zoneconf.c

bind 9.3结合mysql数据库

	zname = cfg_obj_asstring(cfg_tuple_get(zconfig, "name"));

	RETERR(ns_config_getclass(cfg_tuple_get(zconfig, "class"),
				  vclass, &zclass));
	dns_zone_setclass(zone, zclass);

	ztype = zonetype_fromconfig(zoptions);
	dns_zone_settype(zone, ztype);

	obj = NULL;
	result = cfg_map_get(zoptions, "database", &obj);
	if (result == ISC_R_SUCCESS)
		cpval = cfg_obj_asstring(obj);
	else
		cpval = default_dbtype;
	RETERR(strtoargv(mctx, cpval, &dbargc, &dbargv));
	/*
	 * ANSI C is strange here.  There is no logical reason why (char **)
	 * cannot be promoted automatically to (const char * const *) by the
	 * compiler w/o generating a warning.
	 */
	RETERR(dns_zone_setdbtype(zone, dbargc, (const char * const *)dbargv));
	isc_mem_put(mctx, dbargv, dbargc * sizeof(*dbargv));

	obj = NULL;
	result = cfg_map_get(zoptions, "file", &obj);
	if (result == ISC_R_SUCCESS)
		filename = cfg_obj_asstring(obj);
	RETERR(dns_zone_setfile(zone, filename));

	if (ztype == dns_zone_slave)
		RETERR(configure_zone_acl(zconfig, vconfig, config,
					  "allow-notify", ac, zone,
					  dns_zone_setnotifyacl,
					  dns_zone_clearnotifyacl));
	/*
	 * XXXAG This probably does not make sense for stubs.
	 */
	RETERR(configure_zone_acl(zconfig, vconfig, config,
				  "allow-query", ac, zone,
				  dns_zone_setqueryacl,
				  dns_zone_clearqueryacl));

	obj = NULL;
	result = ns_config_get(maps, "dialup", &obj);
	INSIST(result == ISC_R_SUCCESS);
	if (cfg_obj_isboolean(obj)) {
		if (cfg_obj_asboolean(obj))
			dialup = dns_dialuptype_yes;
		else
			dialup = dns_dialuptype_no;
	} else {
		char *dialupstr = cfg_obj_asstring(obj);
		if (strcasecmp(dialupstr, "notify") == 0)
			dialup = dns_dialuptype_notify;
		else if (strcasecmp(dialupstr, "notify-passive") == 0)
			dialup = dns_dialuptype_notifypassive;
		else if (strcasecmp(dialupstr, "refresh") == 0)
			dialup = dns_dialuptype_refresh;
		else if (strcasecmp(dialupstr, "passive") == 0)
			dialup = dns_dialuptype_passive;
		else
			INSIST(0);
	}
	dns_zone_setdialup(zone, dialup);

	obj = NULL;
	result = ns_config_get(maps, "zone-statistics", &obj);
	INSIST(result == ISC_R_SUCCESS);
	RETERR(dns_zone_setstatistics(zone, cfg_obj_asboolean(obj)));

	/*
	 * Configure master functionality.  This applies
	 * to primary masters (type "master") and slaves
	 * acting as masters (type "slave"), but not to stubs.
	 */
	if (ztype != dns_zone_stub) {
		obj = NULL;
		result = ns_config_get(maps, "notify", &obj);
		INSIST(result == ISC_R_SUCCESS);
		if (cfg_obj_isboolean(obj)) {
			if (cfg_obj_asboolean(obj))
				notifytype = dns_notifytype_yes;
			else
				notifytype = dns_notifytype_no;
		} else {
			char *notifystr = cfg_obj_asstring(obj);
			if (strcasecmp(notifystr, "explicit") == 0)
				notifytype = dns_notifytype_explicit;
			else
				INSIST(0);
		}
		dns_zone_setnotifytype(zone, notifytype);

		obj = NULL;
		result = ns_config_get(maps, "also-notify", &obj);
		if (result == ISC_R_SUCCESS) {
			isc_sockaddr_t *addrs = NULL;
			isc_uint32_t addrcount;
			result = ns_config_getiplist(config, obj, 0, mctx,
						     &addrs, &addrcount);
			if (result != ISC_R_SUCCESS)
				return (result);
			result = dns_zone_setalsonotify(zone, addrs,
							addrcount);
			ns_config_putiplist(mctx, &addrs, addrcount);
			if (result != ISC_R_SUCCESS)
				return (result);
		} else
			RETERR(dns_zone_setalsonotify(zone, NULL, 0));

		obj = NULL;
		result = ns_config_get(maps, "notify-source", &obj);
		INSIST(result == ISC_R_SUCCESS);
		RETERR(dns_zone_setnotifysrc4(zone, cfg_obj_assockaddr(obj)));
		ns_add_reserved_dispatch(ns_g_server, cfg_obj_assockaddr(obj));

		obj = NULL;
		result = ns_config_get(maps, "notify-source-v6", &obj);
		INSIST(result == ISC_R_SUCCESS);
		RETERR(dns_zone_setnotifysrc6(zone, cfg_obj_assockaddr(obj)));
		ns_add_reserved_dispatch(ns_g_server, cfg_obj_assockaddr(obj));

		RETERR(configure_zone_acl(zconfig, vconfig, config,
					  "allow-transfer", ac, zone,
					  dns_zone_setxfracl,
					  dns_zone_clearxfracl));

		obj = NULL;
		result = ns_config_get(maps, "max-transfer-time-out", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setmaxxfrout(zone, cfg_obj_asuint32(obj) * 60);

		obj = NULL;
		result = ns_config_get(maps, "max-transfer-idle-out", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setidleout(zone, cfg_obj_asuint32(obj) * 60);

		obj = NULL;
		result =  ns_config_get(maps, "max-journal-size", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setjournalsize(zone, -1);
		if (cfg_obj_isstring(obj)) {
			const char *str = cfg_obj_asstring(obj);
			INSIST(strcasecmp(str, "unlimited") == 0);
			journal_size = ISC_UINT32_MAX / 2;
		} else {
			isc_resourcevalue_t value;
			value = cfg_obj_asuint64(obj);
			if (value > ISC_UINT32_MAX / 2) {
				cfg_obj_log(obj, ns_g_lctx,
					    ISC_LOG_ERROR,
					    "'max-journal-size "
					    "%" ISC_PRINT_QUADFORMAT "d' "
					    "is too large",
					    value);
				RETERR(ISC_R_RANGE);
			}
			journal_size = (isc_uint32_t)value;
		}
		dns_zone_setjournalsize(zone, journal_size);

		obj = NULL;
		result = ns_config_get(maps, "ixfr-from-differences", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setoption(zone, DNS_ZONEOPT_IXFRFROMDIFFS,
				   cfg_obj_asboolean(obj));

		checknames(ztype, maps, &obj);
		INSIST(obj != NULL);
		if (strcasecmp(cfg_obj_asstring(obj), "warn") == 0) {
			fail = ISC_FALSE;
			check = ISC_TRUE;
		} else if (strcasecmp(cfg_obj_asstring(obj), "fail") == 0) {
			fail = check = ISC_TRUE;
		} else if (strcasecmp(cfg_obj_asstring(obj), "ignore") == 0) {
			fail = check = ISC_FALSE;
		} else
			INSIST(0);
		dns_zone_setoption(zone, DNS_ZONEOPT_CHECKNAMES, check);
		dns_zone_setoption(zone, DNS_ZONEOPT_CHECKNAMESFAIL, fail);
	}

	/*
	 * Configure update-related options.  These apply to
	 * primary masters only.
	 */
	if (ztype == dns_zone_master) {
		dns_acl_t *updateacl;
		RETERR(configure_zone_acl(zconfig, vconfig, config,
					  "allow-update", ac, zone,
					  dns_zone_setupdateacl,
					  dns_zone_clearupdateacl));
		
		updateacl = dns_zone_getupdateacl(zone);
		if (updateacl != NULL  && dns_acl_isinsecure(updateacl))
			isc_log_write(ns_g_lctx, DNS_LOGCATEGORY_SECURITY,
				      NS_LOGMODULE_SERVER, ISC_LOG_WARNING,
				      "zone '%s' allows updates by IP "
				      "address, which is insecure",
				      zname);
		
		RETERR(configure_zone_ssutable(zoptions, zone));

		obj = NULL;
		result = ns_config_get(maps, "sig-validity-interval", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setsigvalidityinterval(zone,
						cfg_obj_asuint32(obj) * 86400);

		obj = NULL;
		result = ns_config_get(maps, "key-directory", &obj);
		if (result == ISC_R_SUCCESS) {
			filename = cfg_obj_asstring(obj);
			if (!isc_file_isabsolute(filename)) {
				cfg_obj_log(obj, ns_g_lctx, ISC_LOG_ERROR,
					    "key-directory '%s' "
					    "is not absolute", filename);
				return (ISC_R_FAILURE);
			}
			RETERR(dns_zone_setkeydirectory(zone, filename));
		}

	} else if (ztype == dns_zone_slave) {
		RETERR(configure_zone_acl(zconfig, vconfig, config,
					  "allow-update-forwarding", ac, zone,
					  dns_zone_setforwardacl,
					  dns_zone_clearforwardacl));
	}

	/*
	 * Configure slave functionality.
	 */
	switch (ztype) {
	case dns_zone_slave:
	case dns_zone_stub:
		obj = NULL;
		result = cfg_map_get(zoptions, "masters", &obj);
		if (obj != NULL) {
			addrs = NULL;
			keynames = NULL;
			RETERR(ns_config_getipandkeylist(config, obj, mctx,
							 &addrs, &keynames,
							 &count));
			result = dns_zone_setmasterswithkeys(zone, addrs,
							     keynames, count);
			ns_config_putipandkeylist(mctx, &addrs, &keynames,
						  count);
		} else
			result = dns_zone_setmasters(zone, NULL, 0);
		RETERR(result);

		multi = ISC_FALSE;
		if (count > 1) {
			obj = NULL;
			result = ns_config_get(maps, "multi-master", &obj);
			INSIST(result == ISC_R_SUCCESS);
			multi = cfg_obj_asboolean(obj);
		}
		dns_zone_setoption(zone, DNS_ZONEOPT_MULTIMASTER, multi);

		obj = NULL;
		result = ns_config_get(maps, "max-transfer-time-in", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setmaxxfrin(zone, cfg_obj_asuint32(obj) * 60);

		obj = NULL;
		result = ns_config_get(maps, "max-transfer-idle-in", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setidlein(zone, cfg_obj_asuint32(obj) * 60);

		obj = NULL;
		result = ns_config_get(maps, "max-refresh-time", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setmaxrefreshtime(zone, cfg_obj_asuint32(obj));

		obj = NULL;
		result = ns_config_get(maps, "min-refresh-time", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setminrefreshtime(zone, cfg_obj_asuint32(obj));

		obj = NULL;
		result = ns_config_get(maps, "max-retry-time", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setmaxretrytime(zone, cfg_obj_asuint32(obj));

		obj = NULL;
		result = ns_config_get(maps, "min-retry-time", &obj);
		INSIST(result == ISC_R_SUCCESS);
		dns_zone_setminretrytime(zone, cfg_obj_asuint32(obj));

		obj = NULL;
		result = ns_config_get(maps, "transfer-source", &obj);
		INSIST(result == ISC_R_SUCCESS);
		RETERR(dns_zone_setxfrsource4(zone, cfg_obj_assockaddr(obj)));
		ns_add_reserved_dispatch(ns_g_server, cfg_obj_assockaddr(obj));

		obj = NULL;
		result = ns_config_get(maps, "transfer-source-v6", &obj);
		INSIST(result == ISC_R_SUCCESS);
		RETERR(dns_zone_setxfrsource6(zone, cfg_obj_assockaddr(obj)));
		ns_add_reserved_dispatch(ns_g_server, cfg_obj_assockaddr(obj));

		obj = NULL;
		result = ns_config_get(maps, "alt-transfer-source", &obj);
		INSIST(result == ISC_R_SUCCESS);
		RETERR(dns_zone_setaltxfrsource4(zone, cfg_obj_assockaddr(obj)));

		obj = NULL;
		result = ns_config_get(maps, "alt-transfer-source-v6", &obj);
		INSIST(result == ISC_R_SUCCESS);
		RETERR(dns_zone_setaltxfrsource6(zone, cfg_obj_assockaddr(obj)));

		obj = NULL;
		(void)ns_config_get(maps, "use-alt-transfer-source", &obj);
		if (obj == NULL) {
			/*
			 * Default off when views are in use otherwise
			 * on for BIND 8 compatibility.
			 */
			view = dns_zone_getview(zone);
			if (view != NULL && strcmp(view->name, "_default") == 0)
				alt = ISC_TRUE;
			else
				alt = ISC_FALSE;
		} else
			alt = cfg_obj_asboolean(obj);
		dns_zone_setoption(zone, DNS_ZONEOPT_USEALTXFRSRC, alt);

		break;

	default:
		break;
	}

	return (ISC_R_SUCCESS);
}

isc_boolean_t
ns_zone_reusable(dns_zone_t *zone, cfg_obj_t *zconfig) {
	cfg_obj_t *zoptions = NULL;
	cfg_obj_t *obj = NULL;
	const char *cfilename;
	const char *zfilename;

	zoptions = cfg_tuple_get(zconfig, "options");

	if (zonetype_fromconfig(zoptions) != dns_zone_gettype(zone))
		return (ISC_FALSE);

	obj = NULL;
	(void)cfg_map_get(zoptions, "file", &obj);
	if (obj != NULL)
		cfilename = cfg_obj_asstring(obj);
	else
		cfilename = NULL;
	zfilename = dns_zone_getfile(zone);
	if (!((cfilename == NULL && zfilename == NULL) ||
	      (cfilename != NULL && zfilename != NULL &&
	       strcmp(cfilename, zfilename) == 0)))
	    return (ISC_FALSE);

	return (ISC_TRUE);
}