971. [func] 'try-edns' can be use to disable edns on all queries.

CHANGES

@@ -1,3 +1,5 @@
+ 971.	[func]		'try-edns' can be use to disable edns on all queries.
+
  970.	[func]		'journal-size' can now be used to set a target
 			size for a journal.
 

bin/named/config.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: config.c,v 1.11 2001/08/07 01:58:54 marka Exp $ */
+/* $Id: config.c,v 1.12 2001/08/30 05:52:08 marka Exp $ */
 
 #include <config.h>
 
@@ -101,6 +101,7 @@ options {\n\
 	recursion true;\n\
 	provide-ixfr true;\n\
 	request-ixfr true;\n\
+	try-edns true;\n\
 	fetch-glue no;\n\
 	rfc2308-type1 no;\n\
 	additional-from-auth true;\n\

bin/named/query.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: query.c,v 1.198 2001/08/27 17:20:09 gson Exp $ */
+/* $Id: query.c,v 1.199 2001/08/30 05:52:10 marka Exp $ */
 
 #include <config.h>
 
@@ -2080,6 +2080,7 @@ query_recurse(ns_client_t *client, dns_rdatatype_t qtype, dns_name_t *qdomain,
 {
 	isc_result_t result;
 	dns_rdataset_t *rdataset, *sigrdataset;
+	unsigned int options;
 
 	/*
 	 * We are about to recurse, which means that this client will
@@ -2123,10 +2124,13 @@ query_recurse(ns_client_t *client, dns_rdatatype_t qtype, dns_name_t *qdomain,
 
 	if (client->query.timerset == ISC_FALSE)
 		ns_client_settimeout(client, 60);
+	options = client->query.fetchoptions;
+	if (!client->view->tryedns) 
+		options |= DNS_FETCHOPT_NOEDNS0;
 	result = dns_resolver_createfetch(client->view->resolver,
 					  client->query.qname,
 					  qtype, qdomain, nameservers,
-					  NULL, client->query.fetchoptions,
+					  NULL, options,
 					  client->task,
 					  query_resume, client,
 					  rdataset, sigrdataset,

bin/named/server.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: server.c,v 1.339 2001/08/07 01:58:56 marka Exp $ */
+/* $Id: server.c,v 1.340 2001/08/30 05:52:12 marka Exp $ */
 
 #include <config.h>
 
@@ -813,6 +813,11 @@ configure_view(dns_view_t *view, cfg_obj_t *config, cfg_obj_t *vconfig,
 	CHECK(configure_view_acl(vconfig, config, "sortlist",
 				 actx, ns_g_mctx, &view->sortlist));
 
+	obj = NULL;
+	result = ns_config_get(maps, "try-edns", &obj);
+	INSIST(result == ISC_R_SUCCESS);
+	view->tryedns = cfg_obj_asboolean(obj);
+
 	obj = NULL;
 	result = ns_config_get(maps, "request-ixfr", &obj);
 	INSIST(result == ISC_R_SUCCESS);

lib/dns/adb.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: adb.c,v 1.181 2001/08/08 22:54:36 gson Exp $ */
+/* $Id: adb.c,v 1.182 2001/08/30 05:52:14 marka Exp $ */
 
 /*
  * Implementation notes
@@ -1593,6 +1593,7 @@ a6missing(dns_a6context_t *a6ctx, dns_name_t *a6name) {
 	dns_adb_t *adb;
 	dns_adbfetch6_t *fetch;
 	isc_result_t result;
+	unsigned int options = 0;
 
 	name = a6ctx->arg;
 	INSIST(DNS_ADBNAME_VALID(name));
@@ -1605,9 +1606,11 @@ a6missing(dns_a6context_t *a6ctx, dns_name_t *a6name) {
 		return;
 	}
 
+	if (!adb->view->tryedns)
+		options |= DNS_FETCHOPT_NOEDNS0;
 	result = dns_resolver_createfetch(adb->view->resolver, a6name,
 					  dns_rdatatype_a6,
-					  NULL, NULL, NULL, 0,
+					  NULL, NULL, NULL, options,
 					  adb->task, fetch_callback_a6,
 					  name, &fetch->rdataset, NULL,
 					  &fetch->fetch);
@@ -3748,6 +3751,8 @@ fetch_name_v4(dns_adbname_t *adbname, isc_boolean_t start_at_root) {
 		goto cleanup;
 	}
 
+	if (!adb->view->tryedns)
+		options |= DNS_FETCHOPT_NOEDNS0;
 	result = dns_resolver_createfetch(adb->view->resolver, &adbname->name,
 					  dns_rdatatype_a,
 					  name, nameservers, NULL, options,
@@ -3775,6 +3780,7 @@ fetch_name_aaaa(dns_adbname_t *adbname) {
 	isc_result_t result;
 	dns_adbfetch_t *fetch;
 	dns_adb_t *adb;
+	unsigned int options = 0;
 
 	INSIST(DNS_ADBNAME_VALID(adbname));
 	adb = adbname->adb;
@@ -3790,9 +3796,11 @@ fetch_name_aaaa(dns_adbname_t *adbname) {
 		goto cleanup;
 	}
 
+	if (!adb->view->tryedns)
+		options |= DNS_FETCHOPT_NOEDNS0;
 	result = dns_resolver_createfetch(adb->view->resolver, &adbname->name,
 					  dns_rdatatype_aaaa,
-					  NULL, NULL, NULL, 0,
+					  NULL, NULL, NULL, options,
 					  adb->task, fetch_callback,
 					  adbname, &fetch->rdataset, NULL,
 					  &fetch->fetch);
@@ -3851,6 +3859,8 @@ fetch_name_a6(dns_adbname_t *adbname, isc_boolean_t start_at_root) {
 	}
 	fetch->flags |= FETCH_FIRST_A6;
 
+	if (!adb->view->tryedns)
+		options |= DNS_FETCHOPT_NOEDNS0;
 	result = dns_resolver_createfetch(adb->view->resolver, &adbname->name,
 					  dns_rdatatype_a6,
 					  name, nameservers, NULL, options,

lib/dns/include/dns/view.h

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: view.h,v 1.73 2001/08/28 03:58:23 marka Exp $ */
+/* $Id: view.h,v 1.74 2001/08/30 05:52:16 marka Exp $ */
 
 #ifndef DNS_VIEW_H
 #define DNS_VIEW_H 1
@@ -113,6 +113,7 @@ struct dns_view {
 	dns_acl_t *			sortlist;
 	isc_boolean_t			requestixfr;
 	isc_boolean_t			provideixfr;
+	isc_boolean_t			tryedns;
 	dns_ttl_t			maxcachettl;
 	dns_ttl_t			maxncachettl;
 	in_port_t			dstport;

lib/dns/view.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: view.c,v 1.103 2001/08/27 17:20:10 gson Exp $ */
+/* $Id: view.c,v 1.104 2001/08/30 05:52:15 marka Exp $ */
 
 #include <config.h>
 
@@ -158,6 +158,7 @@ dns_view_create(isc_mem_t *mctx, dns_rdataclass_t rdclass,
 	view->maxcachettl = 7 * 24 * 3600;
 	view->maxncachettl = 3 * 3600;
 	view->dstport = 53;
+	view->tryedns = ISC_TRUE;
 
 	result = dns_peerlist_new(view->mctx, &view->peers);
 	if (result != ISC_R_SUCCESS)

lib/isccfg/parser.c

@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: parser.c,v 1.71 2001/08/30 05:23:00 marka Exp $ */
+/* $Id: parser.c,v 1.72 2001/08/30 05:52:18 marka Exp $ */
 
 #include <config.h>
 
@@ -867,6 +867,7 @@ view_clauses[] = {
 	{ "recursion", &cfg_type_boolean, 0 },
 	{ "provide-ixfr", &cfg_type_boolean, 0 },
 	{ "request-ixfr", &cfg_type_boolean, 0 },
+	{ "try-edns", &cfg_type_boolean, 0 },
 	{ "fetch-glue", &cfg_type_boolean, CFG_CLAUSEFLAG_OBSOLETE },
 	{ "rfc2308-type1", &cfg_type_boolean, CFG_CLAUSEFLAG_NYI },
 	{ "additional-from-auth", &cfg_type_boolean, 0 },