12 files changed, 820 insertions, 97 deletions
diff --git a/contrib/bind9/lib/isccfg/Makefile.in b/contrib/bind9/lib/isccfg/Makefile.in
index 4c55a16..37b0a26 100644
--- a/contrib/bind9/lib/isccfg/Makefile.in
+++ b/contrib/bind9/lib/isccfg/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2005, 2007, 2009, 2011  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 2001-2003  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
@@ -13,7 +13,7 @@
 # OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 # PERFORMANCE OF THIS SOFTWARE.
 
-# $Id: Makefile.in,v 1.18 2007-06-19 23:47:22 tbox Exp $
+# $Id: Makefile.in,v 1.21.244.1.2.1 2011-06-02 23:47:37 tbox Exp $
 
 srcdir =	@srcdir@
 VPATH =		@srcdir@
@@ -27,7 +27,7 @@ top_srcdir =	@top_srcdir@
 
 CINCLUDES =	-I. ${DNS_INCLUDES} ${ISC_INCLUDES} ${ISCCFG_INCLUDES}
 
-CDEFINES =      @USE_DLZ@
+CDEFINES =	@USE_DLZ@
 CWARNINGS =
 
 ISCLIBS =	../../lib/isc/libisc.@A@
@@ -68,7 +68,7 @@ libisccfg.la: ${OBJS}
 	 ${LIBTOOL_MODE_LINK} \
 		${CC} ${ALL_CFLAGS} ${LDFLAGS} -o libisccfg.la -rpath ${libdir} \
 		-version-info ${LIBINTERFACE}:${LIBREVISION}:${LIBAGE} \
-		${OBJS} ${LIBS} ${DNSLIBS} ${ISCCCLIBS} ${ISCLIBS}
+		${OBJS} ${DNSLIBS} ${ISCCCLIBS} ${ISCLIBS} ${LIBS}
 
 timestamp: libisccfg.@A@
 	touch timestamp
diff --git a/contrib/bind9/lib/isccfg/aclconf.c b/contrib/bind9/lib/isccfg/aclconf.c
index 6bf0ad8..44d436a4 100644
--- a/contrib/bind9/lib/isccfg/aclconf.c
+++ b/contrib/bind9/lib/isccfg/aclconf.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2009  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2010  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1999-2002  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: aclconf.c,v 1.22.34.4 2009-10-01 23:47:17 tbox Exp $ */
+/* $Id: aclconf.c,v 1.29 2010-08-13 23:47:03 tbox Exp $ */
 
 #include <config.h>
 
@@ -39,7 +39,7 @@ cfg_aclconfctx_init(cfg_aclconfctx_t *ctx) {
 }
 
 void
-cfg_aclconfctx_destroy(cfg_aclconfctx_t *ctx) {
+cfg_aclconfctx_clear(cfg_aclconfctx_t *ctx) {
 	dns_acl_t *dacl, *next;
 
 	for (dacl = ISC_LIST_HEAD(ctx->named_acl_cache);
@@ -51,6 +51,23 @@ cfg_aclconfctx_destroy(cfg_aclconfctx_t *ctx) {
 	}
 }
 
+void
+cfg_aclconfctx_clone(cfg_aclconfctx_t *src, cfg_aclconfctx_t *dest) {
+	dns_acl_t *dacl, *next;
+	REQUIRE(src != NULL && dest != NULL);
+
+	cfg_aclconfctx_init(dest);
+	for (dacl = ISC_LIST_HEAD(src->named_acl_cache);
+	     dacl != NULL;
+	     dacl = next)
+	{
+		dns_acl_t *copy;
+		next = ISC_LIST_NEXT(dacl, nextincache);
+		dns_acl_attach(dacl, &copy);
+		ISC_LIST_APPEND(dest->named_acl_cache, copy, nextincache);
+	}
+}
+
 /*
  * Find the definition of the named acl whose name is "name".
  */
@@ -150,7 +167,7 @@ convert_keyname(const cfg_obj_t *keyobj, isc_log_t *lctx, isc_mem_t *mctx,
 	isc_buffer_add(&buf, keylen);
 	dns_fixedname_init(&fixname);
 	result = dns_name_fromtext(dns_fixedname_name(&fixname), &buf,
-				   dns_rootname, ISC_FALSE, NULL);
+				   dns_rootname, 0, NULL);
 	if (result != ISC_R_SUCCESS) {
 		cfg_obj_log(keyobj, lctx, ISC_LOG_WARNING,
 			    "key name '%s' is not a valid domain name",
diff --git a/contrib/bind9/lib/isccfg/api b/contrib/bind9/lib/isccfg/api
index fbbf923..7821c32 100644
--- a/contrib/bind9/lib/isccfg/api
+++ b/contrib/bind9/lib/isccfg/api
@@ -1,3 +1,3 @@
-LIBINTERFACE = 50
-LIBREVISION = 3
-LIBAGE = 0
+LIBINTERFACE = 81
+LIBREVISION = 1
+LIBAGE = 1
diff --git a/contrib/bind9/lib/isccfg/dnsconf.c b/contrib/bind9/lib/isccfg/dnsconf.c
new file mode 100644
index 0000000..7091d63
--- /dev/null
+++ b/contrib/bind9/lib/isccfg/dnsconf.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2009  Internet Systems Consortium, Inc. ("ISC")
+ *
+ * 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 ISC 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.
+ */
+
+/* $Id: dnsconf.c,v 1.4 2009-09-02 23:48:03 tbox Exp $ */
+
+/*! \file */
+
+#include <config.h>
+
+#include <isccfg/cfg.h>
+#include <isccfg/grammar.h>
+
+/*%
+ * A trusted key, as used in the "trusted-keys" statement.
+ */
+static cfg_tuplefielddef_t trustedkey_fields[] = {
+	{ "name", &cfg_type_astring, 0 },
+	{ "flags", &cfg_type_uint32, 0 },
+	{ "protocol", &cfg_type_uint32, 0 },
+	{ "algorithm", &cfg_type_uint32, 0 },
+	{ "key", &cfg_type_qstring, 0 },
+	{ NULL, NULL, 0 }
+};
+
+static cfg_type_t cfg_type_trustedkey = {
+	"trustedkey", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	&cfg_rep_tuple, trustedkey_fields
+};
+
+static cfg_type_t cfg_type_trustedkeys = {
+	"trusted-keys", cfg_parse_bracketed_list, cfg_print_bracketed_list,
+	cfg_doc_bracketed_list, &cfg_rep_list, &cfg_type_trustedkey
+};
+
+/*%
+ * Clauses that can be found within the top level of the dns.conf
+ * file only.
+ */
+static cfg_clausedef_t
+dnsconf_clauses[] = {
+	{ "trusted-keys", &cfg_type_trustedkeys, CFG_CLAUSEFLAG_MULTI },
+	{ NULL, NULL, 0 }
+};
+
+/*% The top-level dns.conf syntax. */
+
+static cfg_clausedef_t *
+dnsconf_clausesets[] = {
+	dnsconf_clauses,
+	NULL
+};
+
+LIBISCCFG_EXTERNAL_DATA cfg_type_t cfg_type_dnsconf = {
+	"dnsconf", cfg_parse_mapbody, cfg_print_mapbody, cfg_doc_mapbody,
+	&cfg_rep_map, dnsconf_clausesets
+};
diff --git a/contrib/bind9/lib/isccfg/include/isccfg/aclconf.h b/contrib/bind9/lib/isccfg/include/isccfg/aclconf.h
index f2ab70f..49aef03 100644
--- a/contrib/bind9/lib/isccfg/include/isccfg/aclconf.h
+++ b/contrib/bind9/lib/isccfg/include/isccfg/aclconf.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2007  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2007, 2010  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1999-2001  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: aclconf.h,v 1.10 2007-10-12 04:17:18 each Exp $ */
+/* $Id: aclconf.h,v 1.12 2010-08-13 23:47:04 tbox Exp $ */
 
 #ifndef ISCCFG_ACLCONF_H
 #define ISCCFG_ACLCONF_H 1
@@ -44,9 +44,15 @@ cfg_aclconfctx_init(cfg_aclconfctx_t *ctx);
  */
 
 void
-cfg_aclconfctx_destroy(cfg_aclconfctx_t *ctx);
+cfg_aclconfctx_clone(cfg_aclconfctx_t *src, cfg_aclconfctx_t *dest);
 /*
- * Destroy an ACL configuration context.
+ * Copy the contents of one ACL configuration context into another.
+ */
+
+void
+cfg_aclconfctx_clear(cfg_aclconfctx_t *ctx);
+/*
+ * Clear the contents of an ACL configuration context.
  */
 
 isc_result_t
diff --git a/contrib/bind9/lib/isccfg/include/isccfg/cfg.h b/contrib/bind9/lib/isccfg/include/isccfg/cfg.h
index 06efa35..82900d6 100644
--- a/contrib/bind9/lib/isccfg/include/isccfg/cfg.h
+++ b/contrib/bind9/lib/isccfg/include/isccfg/cfg.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2007  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2007, 2010  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 2000-2002  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: cfg.h,v 1.44 2007-10-12 04:17:18 each Exp $ */
+/* $Id: cfg.h,v 1.46 2010-08-13 23:47:04 tbox Exp $ */
 
 #ifndef ISCCFG_CFG_H
 #define ISCCFG_CFG_H 1
@@ -35,6 +35,7 @@
 
 #include <isc/formatcheck.h>
 #include <isc/lang.h>
+#include <isc/refcount.h>
 #include <isc/types.h>
 #include <isc/list.h>
 
@@ -70,7 +71,7 @@ typedef struct cfg_obj cfg_obj_t;
 typedef struct cfg_listelt cfg_listelt_t;
 
 /*%
- * A callback function to be called when parsing an option 
+ * A callback function to be called when parsing an option
  * that needs to be interpreted at parsing time, like
  * "directory".
  */
@@ -83,6 +84,12 @@ typedef isc_result_t
 
 ISC_LANG_BEGINDECLS
 
+void
+cfg_parser_attach(cfg_parser_t *src, cfg_parser_t **dest);
+/*%<
+ * Reference a parser object.
+ */
+
 isc_result_t
 cfg_parser_create(isc_mem_t *mctx, isc_log_t *lctx, cfg_parser_t **ret);
 /*%<
@@ -123,7 +130,7 @@ cfg_parse_buffer(cfg_parser_t *pctx, isc_buffer_t *buffer,
  * (isc_parse_buffer()).
  *
  * Returns an error if the file does not parse correctly.
- * 
+ *
  * Requires:
  *\li 	"filename" is valid.
  *\li 	"mem" is valid.
@@ -140,13 +147,14 @@ cfg_parse_buffer(cfg_parser_t *pctx, isc_buffer_t *buffer,
 void
 cfg_parser_destroy(cfg_parser_t **pctxp);
 /*%<
- * Destroy a configuration parser.
+ * Remove a reference to a configuration parser; destroy it if there are no
+ * more references.
  */
 
 isc_boolean_t
 cfg_obj_isvoid(const cfg_obj_t *obj);
 /*%<
- * Return true iff 'obj' is of void type (e.g., an optional 
+ * Return true iff 'obj' is of void type (e.g., an optional
  * value not specified).
  */
 
@@ -355,7 +363,7 @@ cfg_list_length(const cfg_obj_t *obj, isc_boolean_t recurse);
  * all contained lists.
  */
 
-const cfg_obj_t *
+cfg_obj_t *
 cfg_listelt_value(const cfg_listelt_t *elt);
 /*%<
  * Returns the configuration object associated with cfg_listelt_t.
@@ -389,17 +397,25 @@ cfg_print_grammar(const cfg_type_t *type,
 isc_boolean_t
 cfg_obj_istype(const cfg_obj_t *obj, const cfg_type_t *type);
 /*%<
- * Return true iff 'obj' is of type 'type'. 
+ * Return true iff 'obj' is of type 'type'.
  */
 
-void cfg_obj_destroy(cfg_parser_t *pctx, cfg_obj_t **obj);
+void
+cfg_obj_attach(cfg_obj_t *src, cfg_obj_t **dest);
+/*%<
+ * Reference a configuration object.
+ */
+
+void
+cfg_obj_destroy(cfg_parser_t *pctx, cfg_obj_t **obj);
 /*%<
- * Destroy a configuration object.
+ * Delete a reference to a configuration object; destroy the object if
+ * there are no more references.
  */
 
 void
 cfg_obj_log(const cfg_obj_t *obj, isc_log_t *lctx, int level,
-            const char *fmt, ...)
+	    const char *fmt, ...)
 	ISC_FORMAT_PRINTF(4, 5);
 /*%<
  * Log a message concerning configuration object 'obj' to the logging
diff --git a/contrib/bind9/lib/isccfg/include/isccfg/dnsconf.h b/contrib/bind9/lib/isccfg/include/isccfg/dnsconf.h
new file mode 100644
index 0000000..bb71338
--- /dev/null
+++ b/contrib/bind9/lib/isccfg/include/isccfg/dnsconf.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2009  Internet Systems Consortium, Inc. ("ISC")
+ *
+ * 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 ISC 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.
+ */
+
+/* $Id: dnsconf.h,v 1.3 2009-09-02 23:48:03 tbox Exp $ */
+
+#ifndef ISCCFG_NAMEDCONF_H
+#define ISCCFG_NAMEDCONF_H 1
+
+/*! \file
+ * \brief
+ * This module defines the named.conf, rndc.conf, and rndc.key grammars.
+ */
+
+#include <isccfg/cfg.h>
+
+/*
+ * Configuration object types.
+ */
+LIBISCCFG_EXTERNAL_DATA extern cfg_type_t cfg_type_dnsconf;
+/*%< A complete dns.conf file. */
+
+#endif /* ISCCFG_CFG_H */
diff --git a/contrib/bind9/lib/isccfg/include/isccfg/grammar.h b/contrib/bind9/lib/isccfg/include/isccfg/grammar.h
index b8b845b..afc95bc 100644
--- a/contrib/bind9/lib/isccfg/include/isccfg/grammar.h
+++ b/contrib/bind9/lib/isccfg/include/isccfg/grammar.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2008  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2011  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 2002, 2003  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: grammar.h,v 1.17 2008-09-25 04:02:39 tbox Exp $ */
+/* $Id: grammar.h,v 1.24 2011-01-04 23:47:14 tbox Exp $ */
 
 #ifndef ISCCFG_GRAMMAR_H
 #define ISCCFG_GRAMMAR_H 1
@@ -53,6 +53,8 @@
 #define CFG_CLAUSEFLAG_CALLBACK		0x00000020
 /*% A option that is only used in testing. */
 #define CFG_CLAUSEFLAG_TESTONLY		0x00000040
+/*% A configuration option that was not configured at compile time. */
+#define CFG_CLAUSEFLAG_NOTCONFIGURED	0x00000080
 
 typedef struct cfg_clausedef cfg_clausedef_t;
 typedef struct cfg_tuplefielddef cfg_tuplefielddef_t;
@@ -157,6 +159,7 @@ struct cfg_obj {
 		isc_sockaddr_t	sockaddr;
 		cfg_netprefix_t netprefix;
 	}               value;
+	isc_refcount_t  references;     /*%< reference counter */
 	const char *	file;
 	unsigned int    line;
 };
@@ -210,10 +213,21 @@ struct cfg_parser {
 	 */
 	unsigned int	line;
 
+	/*%
+	 * Parser context flags, used for maintaining state
+	 * from one token to the next.
+	 */
+	unsigned int flags;
+
+	/*%< Reference counter */
+	isc_refcount_t  references;
+
 	cfg_parsecallback_t callback;
 	void *callbackarg;
 };
 
+/* Parser context flags */
+#define CFG_PCTX_SKIP		0x1
 
 /*@{*/
 /*%
@@ -314,10 +328,16 @@ cfg_parse_rawport(cfg_parser_t *pctx, unsigned int flags, in_port_t *port);
 isc_result_t
 cfg_parse_sockaddr(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret);
 
+isc_result_t
+cfg_parse_boolean(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret);
+
 void
 cfg_print_sockaddr(cfg_printer_t *pctx, const cfg_obj_t *obj);
 
 void
+cfg_print_boolean(cfg_printer_t *pctx, const cfg_obj_t *obj);
+
+void
 cfg_doc_sockaddr(cfg_printer_t *pctx, const cfg_type_t *type);
 
 isc_result_t
diff --git a/contrib/bind9/lib/isccfg/include/isccfg/log.h b/contrib/bind9/lib/isccfg/include/isccfg/log.h
index f45e4c2..2c9dc12 100644
--- a/contrib/bind9/lib/isccfg/include/isccfg/log.h
+++ b/contrib/bind9/lib/isccfg/include/isccfg/log.h
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: log.h,v 1.12.332.2 2009-01-18 23:47:41 tbox Exp $ */
+/* $Id: log.h,v 1.14 2009-01-18 23:48:14 tbox Exp $ */
 
 #ifndef ISCCFG_LOG_H
 #define ISCCFG_LOG_H 1
diff --git a/contrib/bind9/lib/isccfg/include/isccfg/namedconf.h b/contrib/bind9/lib/isccfg/include/isccfg/namedconf.h
index 34aa3e8..9242cf3 100644
--- a/contrib/bind9/lib/isccfg/include/isccfg/namedconf.h
+++ b/contrib/bind9/lib/isccfg/include/isccfg/namedconf.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2007, 2009  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2007, 2009, 2010  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 2002  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: namedconf.h,v 1.9.332.2 2009-06-25 23:47:28 tbox Exp $ */
+/* $Id: namedconf.h,v 1.18 2010-08-11 18:14:20 each Exp $ */
 
 #ifndef ISCCFG_NAMEDCONF_H
 #define ISCCFG_NAMEDCONF_H 1
@@ -33,12 +33,24 @@
 LIBISCCFG_EXTERNAL_DATA extern cfg_type_t cfg_type_namedconf;
 /*%< A complete named.conf file. */
 
+LIBISCCFG_EXTERNAL_DATA extern cfg_type_t cfg_type_bindkeys;
+/*%< A bind.keys file. */
+
+LIBISCCFG_EXTERNAL_DATA extern cfg_type_t cfg_type_newzones;
+/*%< A new-zones file (for zones added by 'rndc addzone'). */
+
+LIBISCCFG_EXTERNAL_DATA extern cfg_type_t cfg_type_addzoneconf;
+/*%< A single zone passed via the addzone rndc command. */
+
 LIBISCCFG_EXTERNAL_DATA extern cfg_type_t cfg_type_rndcconf;
 /*%< A complete rndc.conf file. */
 
 LIBISCCFG_EXTERNAL_DATA extern cfg_type_t cfg_type_rndckey;
 /*%< A complete rndc.key file. */
 
+LIBISCCFG_EXTERNAL_DATA extern cfg_type_t cfg_type_sessionkey;
+/*%< A complete session.key file. */
+
 LIBISCCFG_EXTERNAL_DATA extern cfg_type_t cfg_type_keyref;
 /*%< A key reference, used as an ACL element */
 
diff --git a/contrib/bind9/lib/isccfg/namedconf.c b/contrib/bind9/lib/isccfg/namedconf.c
index f291507..f80d34b 100644
--- a/contrib/bind9/lib/isccfg/namedconf.c
+++ b/contrib/bind9/lib/isccfg/namedconf.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2008, 2010  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2011  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 2002, 2003  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: namedconf.c,v 1.92.44.2 2010-05-13 23:47:49 tbox Exp $ */
+/* $Id: namedconf.c,v 1.131.8.1 2011-02-03 05:50:08 marka Exp $ */
 
 /*! \file */
 
@@ -24,6 +24,7 @@
 #include <string.h>
 
 #include <isc/lex.h>
+#include <isc/mem.h>
 #include <isc/result.h>
 #include <isc/string.h>
 #include <isc/util.h>
@@ -35,9 +36,9 @@
 #define TOKEN_STRING(pctx) (pctx->token.value.as_textregion.base)
 
 /*% Check a return value. */
-#define CHECK(op) 						\
-	do { result = (op); 					\
-		if (result != ISC_R_SUCCESS) goto cleanup; 	\
+#define CHECK(op)						\
+	do { result = (op);					\
+		if (result != ISC_R_SUCCESS) goto cleanup;	\
 	} while (0)
 
 /*% Clean up a configuration object if non-NULL. */
@@ -57,7 +58,17 @@ static isc_result_t
 parse_keyvalue(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret);
 
 static isc_result_t
-parse_optional_keyvalue(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret);
+parse_optional_keyvalue(cfg_parser_t *pctx, const cfg_type_t *type,
+			cfg_obj_t **ret);
+
+static isc_result_t
+parse_updatepolicy(cfg_parser_t *pctx, const cfg_type_t *type,
+		   cfg_obj_t **ret);
+static void
+print_updatepolicy(cfg_printer_t *pctx, const cfg_obj_t *obj);
+
+static void
+doc_updatepolicy(cfg_printer_t *pctx, const cfg_type_t *type);
 
 static void
 print_keyvalue(cfg_printer_t *pctx, const cfg_obj_t *obj);
@@ -111,6 +122,7 @@ static cfg_type_t cfg_type_zone;
 static cfg_type_t cfg_type_zoneopts;
 static cfg_type_t cfg_type_dynamically_loadable_zones;
 static cfg_type_t cfg_type_dynamically_loadable_zones_opts;
+static cfg_type_t cfg_type_v4_aaaa;
 
 /*
  * Clauses that can be found in a 'dynamically loadable zones' statement
@@ -241,30 +253,76 @@ static cfg_tuplefielddef_t pubkey_fields[] = {
 	{ NULL, NULL, 0 }
 };
 static cfg_type_t cfg_type_pubkey = {
-	"pubkey", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple, &cfg_rep_tuple, pubkey_fields };
+	"pubkey", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	&cfg_rep_tuple, pubkey_fields };
 
 /*%
  * A list of RR types, used in grant statements.
  * Note that the old parser allows quotes around the RR type names.
  */
 static cfg_type_t cfg_type_rrtypelist = {
-	"rrtypelist", cfg_parse_spacelist, cfg_print_spacelist, cfg_doc_terminal,
-	&cfg_rep_list, &cfg_type_astring
+	"rrtypelist", cfg_parse_spacelist, cfg_print_spacelist,
+	cfg_doc_terminal, &cfg_rep_list, &cfg_type_astring
 };
 
 static const char *mode_enums[] = { "grant", "deny", NULL };
 static cfg_type_t cfg_type_mode = {
-	"mode", cfg_parse_enum, cfg_print_ustring, cfg_doc_enum, &cfg_rep_string,
-	&mode_enums
+	"mode", cfg_parse_enum, cfg_print_ustring, cfg_doc_enum,
+	&cfg_rep_string, &mode_enums
 };
 
+static isc_result_t
+parse_matchtype(cfg_parser_t *pctx, const cfg_type_t *type,
+		cfg_obj_t **ret) {
+	isc_result_t result;
+
+	CHECK(cfg_peektoken(pctx, 0));
+	if (pctx->token.type == isc_tokentype_string &&
+	    strcasecmp(TOKEN_STRING(pctx), "zonesub") == 0) {
+		pctx->flags |= CFG_PCTX_SKIP;
+	}
+	return (cfg_parse_enum(pctx, type, ret));
+
+ cleanup:
+	return (result);
+}
+
+static isc_result_t
+parse_matchname(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+	isc_result_t result;
+	cfg_obj_t *obj = NULL;
+
+	if ((pctx->flags & CFG_PCTX_SKIP) != 0) {
+		pctx->flags &= ~CFG_PCTX_SKIP;
+		CHECK(cfg_parse_void(pctx, NULL, &obj));
+	} else
+		result = cfg_parse_astring(pctx, type, &obj);
+
+	*ret = obj;
+ cleanup:
+	return (result);
+}
+
+static void
+doc_matchname(cfg_printer_t *pctx, const cfg_type_t *type) {
+	cfg_print_chars(pctx, "[ ", 2);
+	cfg_doc_obj(pctx, type->of);
+	cfg_print_chars(pctx, " ]", 2);
+}
+
 static const char *matchtype_enums[] = {
 	"name", "subdomain", "wildcard", "self", "selfsub", "selfwild",
 	"krb5-self", "ms-self", "krb5-subdomain", "ms-subdomain",
-	"tcp-self", "6to4-self", NULL };
+	"tcp-self", "6to4-self", "zonesub", "external", NULL };
+
 static cfg_type_t cfg_type_matchtype = {
-	"matchtype", cfg_parse_enum, cfg_print_ustring, cfg_doc_enum, &cfg_rep_string,
-	&matchtype_enums
+	"matchtype", parse_matchtype, cfg_print_ustring,
+	cfg_doc_enum, &cfg_rep_string, &matchtype_enums
+};
+
+static cfg_type_t cfg_type_matchname = {
+	"optional_matchname", parse_matchname, cfg_print_ustring,
+	&doc_matchname, &cfg_rep_tuple, &cfg_type_ustring
 };
 
 /*%
@@ -274,18 +332,70 @@ static cfg_tuplefielddef_t grant_fields[] = {
 	{ "mode", &cfg_type_mode, 0 },
 	{ "identity", &cfg_type_astring, 0 }, /* domain name */
 	{ "matchtype", &cfg_type_matchtype, 0 },
-	{ "name", &cfg_type_astring, 0 }, /* domain name */
+	{ "name", &cfg_type_matchname, 0 }, /* domain name */
 	{ "types", &cfg_type_rrtypelist, 0 },
 	{ NULL, NULL, 0 }
 };
 static cfg_type_t cfg_type_grant = {
-	"grant", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple, &cfg_rep_tuple, grant_fields };
+	"grant", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	 &cfg_rep_tuple, grant_fields
+};
 
 static cfg_type_t cfg_type_updatepolicy = {
-	"update_policy", cfg_parse_bracketed_list, cfg_print_bracketed_list, cfg_doc_bracketed_list,
-	&cfg_rep_list, &cfg_type_grant
+	"update_policy", parse_updatepolicy, print_updatepolicy,
+	doc_updatepolicy, &cfg_rep_list, &cfg_type_grant
 };
 
+static isc_result_t
+parse_updatepolicy(cfg_parser_t *pctx, const cfg_type_t *type,
+		   cfg_obj_t **ret) {
+	isc_result_t result;
+	CHECK(cfg_gettoken(pctx, 0));
+	if (pctx->token.type == isc_tokentype_special &&
+	    pctx->token.value.as_char == '{') {
+		cfg_ungettoken(pctx);
+		return (cfg_parse_bracketed_list(pctx, type, ret));
+	}
+
+	if (pctx->token.type == isc_tokentype_string &&
+	    strcasecmp(TOKEN_STRING(pctx), "local") == 0) {
+		cfg_obj_t *obj = NULL;
+		CHECK(cfg_create_obj(pctx, &cfg_type_ustring, &obj));
+		obj->value.string.length = strlen("local");
+		obj->value.string.base	= isc_mem_get(pctx->mctx,
+						obj->value.string.length + 1);
+		if (obj->value.string.base == NULL) {
+			isc_mem_put(pctx->mctx, obj, sizeof(*obj));
+			return (ISC_R_NOMEMORY);
+		}
+		memcpy(obj->value.string.base, "local", 5);
+		obj->value.string.base[5] = '\0';
+		*ret = obj;
+		return (ISC_R_SUCCESS);
+	}
+
+	cfg_ungettoken(pctx);
+	return (ISC_R_UNEXPECTEDTOKEN);
+
+ cleanup:
+	return (result);
+}
+
+static void
+print_updatepolicy(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+	if (cfg_obj_isstring(obj))
+		cfg_print_ustring(pctx, obj);
+	else
+		cfg_print_bracketed_list(pctx, obj);
+}
+
+static void
+doc_updatepolicy(cfg_printer_t *pctx, const cfg_type_t *type) {
+	cfg_print_cstr(pctx, "( local | { ");
+	cfg_doc_obj(pctx, type->of);
+	cfg_print_cstr(pctx, "; ... }");
+}
+
 /*%
  * A view statement.
  */
@@ -296,7 +406,9 @@ static cfg_tuplefielddef_t view_fields[] = {
 	{ NULL, NULL, 0 }
 };
 static cfg_type_t cfg_type_view = {
-	"view", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple, &cfg_rep_tuple, view_fields };
+	"view", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	 &cfg_rep_tuple, view_fields
+};
 
 /*%
  * A zone statement.
@@ -308,7 +420,9 @@ static cfg_tuplefielddef_t zone_fields[] = {
 	{ NULL, NULL, 0 }
 };
 static cfg_type_t cfg_type_zone = {
-	"zone", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple, &cfg_rep_tuple, zone_fields };
+	"zone", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	&cfg_rep_tuple, zone_fields
+};
 
 /*%
  * A "category" clause in the "logging" statement.
@@ -319,13 +433,15 @@ static cfg_tuplefielddef_t category_fields[] = {
 	{ NULL, NULL, 0 }
 };
 static cfg_type_t cfg_type_category = {
-	"category", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple, &cfg_rep_tuple, category_fields };
+	"category", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	&cfg_rep_tuple, category_fields
+};
 
 
 /*%
- * A trusted key, as used in the "trusted-keys" statement.
+ * A dnssec key, as used in the "trusted-keys" statement.
  */
-static cfg_tuplefielddef_t trustedkey_fields[] = {
+static cfg_tuplefielddef_t dnsseckey_fields[] = {
 	{ "name", &cfg_type_astring, 0 },
 	{ "flags", &cfg_type_uint32, 0 },
 	{ "protocol", &cfg_type_uint32, 0 },
@@ -333,9 +449,27 @@ static cfg_tuplefielddef_t trustedkey_fields[] = {
 	{ "key", &cfg_type_qstring, 0 },
 	{ NULL, NULL, 0 }
 };
-static cfg_type_t cfg_type_trustedkey = {
-	"trustedkey", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple, &cfg_rep_tuple,
-	trustedkey_fields
+static cfg_type_t cfg_type_dnsseckey = {
+	"dnsseckey", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	&cfg_rep_tuple, dnsseckey_fields
+};
+
+/*%
+ * A managed key initialization specifier, as used in the
+ * "managed-keys" statement.
+ */
+static cfg_tuplefielddef_t managedkey_fields[] = {
+	{ "name", &cfg_type_astring, 0 },
+	{ "init", &cfg_type_ustring, 0 },   /* must be literal "initial-key" */
+	{ "flags", &cfg_type_uint32, 0 },
+	{ "protocol", &cfg_type_uint32, 0 },
+	{ "algorithm", &cfg_type_uint32, 0 },
+	{ "key", &cfg_type_qstring, 0 },
+	{ NULL, NULL, 0 }
+};
+static cfg_type_t cfg_type_managedkey = {
+	"managedkey", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	&cfg_rep_tuple, managedkey_fields
 };
 
 static keyword_type_t wild_class_kw = { "class", &cfg_type_ustring };
@@ -397,6 +531,7 @@ static cfg_tuplefielddef_t checknames_fields[] = {
 	{ "mode", &cfg_type_checkmode, 0 },
 	{ NULL, NULL, 0 }
 };
+
 static cfg_type_t cfg_type_checknames = {
 	"checknames", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple, &cfg_rep_tuple,
 	checknames_fields
@@ -407,6 +542,13 @@ static cfg_type_t cfg_type_bracketed_sockaddrlist = {
 	&cfg_rep_list, &cfg_type_sockaddr
 };
 
+static const char *autodnssec_enums[] = { "allow", "maintain", "create",
+					  "off", NULL };
+static cfg_type_t cfg_type_autodnssec = {
+	"autodnssec", cfg_parse_enum, cfg_print_ustring, cfg_doc_enum,
+	&cfg_rep_string, &autodnssec_enums
+};
+
 static cfg_type_t cfg_type_rrsetorder = {
 	"rrsetorder", cfg_parse_bracketed_list, cfg_print_bracketed_list, cfg_doc_bracketed_list,
 	&cfg_rep_list, &cfg_type_rrsetorderingelement
@@ -421,13 +563,27 @@ static cfg_type_t cfg_type_optional_port = {
 
 /*% A list of keys, as in the "key" clause of the controls statement. */
 static cfg_type_t cfg_type_keylist = {
-	"keylist", cfg_parse_bracketed_list, cfg_print_bracketed_list, cfg_doc_bracketed_list, &cfg_rep_list,
-	&cfg_type_astring
+	"keylist", cfg_parse_bracketed_list, cfg_print_bracketed_list,
+	cfg_doc_bracketed_list, &cfg_rep_list, &cfg_type_astring
+};
+
+/*% A list of dnssec keys, as in "trusted-keys" */
+static cfg_type_t cfg_type_dnsseckeys = {
+	"dnsseckeys", cfg_parse_bracketed_list, cfg_print_bracketed_list,
+	cfg_doc_bracketed_list, &cfg_rep_list, &cfg_type_dnsseckey
 };
 
-static cfg_type_t cfg_type_trustedkeys = {
-	"trusted-keys", cfg_parse_bracketed_list, cfg_print_bracketed_list, cfg_doc_bracketed_list, &cfg_rep_list,
-	&cfg_type_trustedkey
+/*%
+ * A list of managed key entries, as in "trusted-keys".  Currently
+ * (9.7.0) this has a format similar to dnssec keys, except the keyname
+ * is followed by the keyword "initial-key".  In future releases, this
+ * keyword may take other values indicating different methods for the
+ * key to be initialized.
+ */
+
+static cfg_type_t cfg_type_managedkeys = {
+	"managedkeys", cfg_parse_bracketed_list, cfg_print_bracketed_list,
+	cfg_doc_bracketed_list, &cfg_rep_list, &cfg_type_managedkey
 };
 
 static const char *forwardtype_enums[] = { "first", "only", NULL };
@@ -437,7 +593,8 @@ static cfg_type_t cfg_type_forwardtype = {
 };
 
 static const char *zonetype_enums[] = {
-	"master", "slave", "stub", "hint", "forward", "delegation-only", NULL };
+	"master", "slave", "stub", "static-stub", "hint", "forward",
+	"delegation-only", NULL };
 static cfg_type_t cfg_type_zonetype = {
 	"zonetype", cfg_parse_enum, cfg_print_ustring, cfg_doc_enum,
 	&cfg_rep_string, &zonetype_enums
@@ -479,6 +636,7 @@ parse_qstringornone(cfg_parser_t *pctx, const cfg_type_t *type,
 		    cfg_obj_t **ret)
 {
 	isc_result_t result;
+
 	CHECK(cfg_gettoken(pctx, CFG_LEXOPT_QSTRING));
 	if (pctx->token.type == isc_tokentype_string &&
 	    strcasecmp(TOKEN_STRING(pctx), "none") == 0)
@@ -496,13 +654,65 @@ doc_qstringornone(cfg_printer_t *pctx, const cfg_type_t *type) {
 }
 
 static cfg_type_t cfg_type_qstringornone = {
-	"qstringornone", parse_qstringornone, NULL, doc_qstringornone, NULL, NULL };
+	"qstringornone", parse_qstringornone, NULL, doc_qstringornone,
+	NULL, NULL
+};
 
 /*%
- * keyword hostname
+ * A boolean ("yes" or "no"), or the special keyword "auto".
+ * Used in the dnssec-validation option.
  */
+static void
+print_auto(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+	UNUSED(obj);
+	cfg_print_cstr(pctx, "auto");
+}
+
+static cfg_type_t cfg_type_auto = {
+	"auto", NULL, print_auto, NULL, &cfg_rep_void, NULL
+};
+
+static isc_result_t
+parse_boolorauto(cfg_parser_t *pctx, const cfg_type_t *type,
+		    cfg_obj_t **ret)
+{
+	isc_result_t result;
+
+	CHECK(cfg_gettoken(pctx, CFG_LEXOPT_QSTRING));
+	if (pctx->token.type == isc_tokentype_string &&
+	    strcasecmp(TOKEN_STRING(pctx), "auto") == 0)
+		return (cfg_create_obj(pctx, &cfg_type_auto, ret));
+	cfg_ungettoken(pctx);
+	return (cfg_parse_boolean(pctx, type, ret));
+ cleanup:
+	return (result);
+}
 
 static void
+print_boolorauto(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+	if (obj->type->rep == &cfg_rep_void)
+		cfg_print_chars(pctx, "auto", 4);
+	else if (obj->value.boolean)
+		cfg_print_chars(pctx, "yes", 3);
+	else
+		cfg_print_chars(pctx, "no", 2);
+}
+
+static void
+doc_boolorauto(cfg_printer_t *pctx, const cfg_type_t *type) {
+	UNUSED(type);
+	cfg_print_cstr(pctx, "( yes | no | auto )");
+}
+
+static cfg_type_t cfg_type_boolorauto = {
+	"boolorauto", parse_boolorauto, print_boolorauto,
+	doc_boolorauto, NULL, NULL
+};
+
+/*%
+ * keyword hostname
+ */
+static void
 print_hostname(cfg_printer_t *pctx, const cfg_obj_t *obj) {
 	UNUSED(obj);
 	cfg_print_cstr(pctx, "hostname");
@@ -652,7 +862,18 @@ namedconf_or_view_clauses[] = {
 	/* only 1 DLZ per view allowed */
 	{ "dlz", &cfg_type_dynamically_loadable_zones, 0 },
 	{ "server", &cfg_type_server, CFG_CLAUSEFLAG_MULTI },
-	{ "trusted-keys", &cfg_type_trustedkeys, CFG_CLAUSEFLAG_MULTI },
+	{ "trusted-keys", &cfg_type_dnsseckeys, CFG_CLAUSEFLAG_MULTI },
+	{ "managed-keys", &cfg_type_managedkeys, CFG_CLAUSEFLAG_MULTI },
+	{ NULL, NULL, 0 }
+};
+
+/*%
+ * Clauses that can occur in the bind.keys file.
+ */
+static cfg_clausedef_t
+bindkeys_clauses[] = {
+	{ "trusted-keys", &cfg_type_dnsseckeys, CFG_CLAUSEFLAG_MULTI },
+	{ "managed-keys", &cfg_type_managedkeys, CFG_CLAUSEFLAG_MULTI },
 	{ NULL, NULL, 0 }
 };
 
@@ -661,18 +882,21 @@ namedconf_or_view_clauses[] = {
  */
 static cfg_clausedef_t
 options_clauses[] = {
-	{ "use-v4-udp-ports", &cfg_type_bracketed_portlist, 0 },
-	{ "use-v6-udp-ports", &cfg_type_bracketed_portlist, 0 },
 	{ "avoid-v4-udp-ports", &cfg_type_bracketed_portlist, 0 },
 	{ "avoid-v6-udp-ports", &cfg_type_bracketed_portlist, 0 },
+	{ "bindkeys-file", &cfg_type_qstring, 0 },
 	{ "blackhole", &cfg_type_bracketed_aml, 0 },
 	{ "coresize", &cfg_type_size, 0 },
 	{ "datasize", &cfg_type_size, 0 },
+	{ "session-keyfile", &cfg_type_qstringornone, 0 },
+	{ "session-keyname", &cfg_type_astring, 0 },
+	{ "session-keyalg", &cfg_type_astring, 0 },
 	{ "deallocate-on-exit", &cfg_type_boolean, CFG_CLAUSEFLAG_OBSOLETE },
 	{ "directory", &cfg_type_qstring, CFG_CLAUSEFLAG_CALLBACK },
 	{ "dump-file", &cfg_type_qstring, 0 },
 	{ "fake-iquery", &cfg_type_boolean, CFG_CLAUSEFLAG_OBSOLETE },
 	{ "files", &cfg_type_size, 0 },
+	{ "flush-zones-on-shutdown", &cfg_type_boolean, 0 },
 	{ "has-old-clients", &cfg_type_boolean, CFG_CLAUSEFLAG_OBSOLETE },
 	{ "heartbeat-interval", &cfg_type_uint32, 0 },
 	{ "host-statistics", &cfg_type_boolean, CFG_CLAUSEFLAG_NOTIMP },
@@ -681,6 +905,7 @@ options_clauses[] = {
 	{ "interface-interval", &cfg_type_uint32, 0 },
 	{ "listen-on", &cfg_type_listenon, CFG_CLAUSEFLAG_MULTI },
 	{ "listen-on-v6", &cfg_type_listenon, CFG_CLAUSEFLAG_MULTI },
+	{ "managed-keys-directory", &cfg_type_qstring, 0 },
 	{ "match-mapped-addresses", &cfg_type_boolean, 0 },
 	{ "memstatistics-file", &cfg_type_qstring, 0 },
 	{ "memstatistics", &cfg_type_boolean, 0 },
@@ -693,6 +918,7 @@ options_clauses[] = {
 	{ "random-device", &cfg_type_qstring, 0 },
 	{ "recursive-clients", &cfg_type_uint32, 0 },
 	{ "reserved-sockets", &cfg_type_uint32, 0 },
+	{ "secroots-file", &cfg_type_qstring, 0 },
 	{ "serial-queries", &cfg_type_uint32, CFG_CLAUSEFLAG_OBSOLETE },
 	{ "serial-query-rate", &cfg_type_uint32, 0 },
 	{ "server-id", &cfg_type_serverid, 0 },
@@ -703,6 +929,7 @@ options_clauses[] = {
 	{ "tcp-listen-queue", &cfg_type_uint32, 0 },
 	{ "tkey-dhkey", &cfg_type_tkey_dhkey, 0 },
 	{ "tkey-gssapi-credential", &cfg_type_qstring, 0 },
+	{ "tkey-gssapi-keytab", &cfg_type_qstring, 0 },
 	{ "tkey-domain", &cfg_type_qstring, 0 },
 	{ "transfers-per-ns", &cfg_type_uint32, 0 },
 	{ "transfers-in", &cfg_type_uint32, 0 },
@@ -710,12 +937,12 @@ options_clauses[] = {
 	{ "treat-cr-as-space", &cfg_type_boolean, CFG_CLAUSEFLAG_OBSOLETE },
 	{ "use-id-pool", &cfg_type_boolean, CFG_CLAUSEFLAG_OBSOLETE },
 	{ "use-ixfr", &cfg_type_boolean, 0 },
+	{ "use-v4-udp-ports", &cfg_type_bracketed_portlist, 0 },
+	{ "use-v6-udp-ports", &cfg_type_bracketed_portlist, 0 },
 	{ "version", &cfg_type_qstringornone, 0 },
-	{ "flush-zones-on-shutdown", &cfg_type_boolean, 0 },
 	{ NULL, NULL, 0 }
 };
 
-
 static cfg_type_t cfg_type_namelist = {
 	"namelist", cfg_parse_bracketed_list, cfg_print_bracketed_list,
 	cfg_doc_bracketed_list, &cfg_rep_list, &cfg_type_qstring };
@@ -726,6 +953,34 @@ static cfg_type_t cfg_type_optional_exclude = {
 	"optional_exclude", parse_optional_keyvalue, print_keyvalue,
 	doc_optional_keyvalue, &cfg_rep_list, &exclude_kw };
 
+static keyword_type_t exceptionnames_kw = { "except-from", &cfg_type_namelist };
+
+static cfg_type_t cfg_type_optional_exceptionnames = {
+	"optional_allow", parse_optional_keyvalue, print_keyvalue,
+	doc_optional_keyvalue, &cfg_rep_list, &exceptionnames_kw };
+
+static cfg_tuplefielddef_t denyaddresses_fields[] = {
+	{ "acl", &cfg_type_bracketed_aml, 0 },
+	{ "except-from", &cfg_type_optional_exceptionnames, 0 },
+	{ NULL, NULL, 0 }
+};
+
+static cfg_type_t cfg_type_denyaddresses = {
+	"denyaddresses", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	&cfg_rep_tuple, denyaddresses_fields
+};
+
+static cfg_tuplefielddef_t denyaliases_fields[] = {
+	{ "name", &cfg_type_namelist, 0 },
+	{ "except-from", &cfg_type_optional_exceptionnames, 0 },
+	{ NULL, NULL, 0 }
+};
+
+static cfg_type_t cfg_type_denyaliases = {
+	"denyaliases", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple,
+	&cfg_rep_tuple, denyaliases_fields
+};
+
 static cfg_type_t cfg_type_algorithmlist = {
 	"algorithmlist", cfg_parse_bracketed_list, cfg_print_bracketed_list,
 	cfg_doc_bracketed_list, &cfg_rep_list, &cfg_type_astring };
@@ -758,20 +1013,134 @@ static cfg_type_t cfg_type_masterformat = {
 	&cfg_rep_string, &masterformat_enums
 };
 
+
+
+/*
+ *  response-policy {
+ *	zone <string> [ policy (given|no-op|nxdomain|nodata|cname <domain> ) ];
+ *  };
+ *
+ * this is a chimera of doc_optional_keyvalue() and cfg_doc_enum()
+ */
+static void
+doc_rpz_policies(cfg_printer_t *pctx, const cfg_type_t *type) {
+	const keyword_type_t *kw;
+	const char * const *p;
+
+	kw = type->of;
+	cfg_print_chars(pctx, "[ ", 2);
+	cfg_print_cstr(pctx, kw->name);
+	cfg_print_chars(pctx, " ", 1);
+
+	cfg_print_chars(pctx, "( ", 2);
+	for (p = kw->type->of; *p != NULL; p++) {
+		cfg_print_cstr(pctx, *p);
+		if (p[1] != NULL)
+			cfg_print_chars(pctx, " | ", 3);
+	}
+}
+
+/*
+ * print_qstring() from parser.c
+ */
+static void
+print_rpz_cname(cfg_printer_t *pctx, const cfg_obj_t *obj)
+{
+	cfg_print_chars(pctx, "\"", 1);
+	cfg_print_ustring(pctx, obj);
+	cfg_print_chars(pctx, "\"", 1);
+}
+
+static void
+doc_rpz_cname(cfg_printer_t *pctx, const cfg_type_t *type) {
+	cfg_doc_terminal(pctx, type);
+	cfg_print_chars(pctx, " ) ]", 4);
+}
+
+static isc_result_t
+parse_rpz(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+	isc_result_t result;
+	cfg_obj_t *obj = NULL;
+	const cfg_tuplefielddef_t *fields = type->of;
+
+	CHECK(cfg_create_tuple(pctx, type, &obj));
+	CHECK(cfg_parse_obj(pctx, fields[0].type, &obj->value.tuple[0]));
+	CHECK(cfg_parse_obj(pctx, fields[1].type, &obj->value.tuple[1]));
+	/*
+	 * parse cname domain only after "policy cname"
+	 */
+	if (cfg_obj_isvoid(obj->value.tuple[1]) ||
+	    strcasecmp("cname", cfg_obj_asstring(obj->value.tuple[1]))) {
+		CHECK(cfg_parse_void(pctx, NULL, &obj->value.tuple[2]));
+	} else {
+		CHECK(cfg_parse_obj(pctx, fields[2].type, &obj->value.tuple[2]));
+	}
+
+	*ret = obj;
+	return (ISC_R_SUCCESS);
+
+cleanup:
+	CLEANUP_OBJ(obj);
+	return (result);
+}
+
+static const char *rpz_policies[] = {
+	"given", "no-op", "nxdomain", "nodata", "cname", NULL
+};
+static cfg_type_t cfg_type_rpz_policylist = {
+	"policies", cfg_parse_enum, cfg_print_ustring, cfg_doc_enum,
+	&cfg_rep_string, &rpz_policies
+};
+static keyword_type_t rpz_policies_kw = {
+	"policy", &cfg_type_rpz_policylist
+};
+static cfg_type_t cfg_type_rpz_policy = {
+	"optional_policy", parse_optional_keyvalue, print_keyvalue,
+	doc_rpz_policies, &cfg_rep_string, &rpz_policies_kw
+};
+static cfg_type_t cfg_type_cname = {
+	"domain", cfg_parse_astring, print_rpz_cname, doc_rpz_cname,
+	&cfg_rep_string, NULL
+};
+static cfg_tuplefielddef_t rpzone_fields[] = {
+	{ "name", &cfg_type_astring, 0 },
+	{ "policy", &cfg_type_rpz_policy, 0 },
+	{ "cname", &cfg_type_cname, 0 },
+	{ NULL, NULL, 0 }
+};
+static cfg_type_t cfg_type_rpzone = {
+	"rpzone", parse_rpz, cfg_print_tuple, cfg_doc_tuple,
+	&cfg_rep_tuple, rpzone_fields
+};
+static cfg_clausedef_t rpz_clauses[] = {
+	{ "zone", &cfg_type_rpzone, CFG_CLAUSEFLAG_MULTI },
+	{ NULL, NULL, 0 }
+};
+static cfg_clausedef_t *rpz_clausesets[] = {
+	rpz_clauses,
+	NULL
+};
+static cfg_type_t cfg_type_rpz = {
+	"rpz", cfg_parse_map, cfg_print_map, cfg_doc_map,
+	&cfg_rep_map, rpz_clausesets
+};
+
+
+
 /*%
  * dnssec-lookaside
  */
 
 static keyword_type_t trustanchor_kw = { "trust-anchor", &cfg_type_astring };
 
-static cfg_type_t cfg_type_trustanchor = {
-	"trust-anchor", parse_keyvalue, print_keyvalue, doc_keyvalue,
-	&cfg_rep_string, &trustanchor_kw
+static cfg_type_t cfg_type_optional_trustanchor = {
+	"optional_trustanchor", parse_optional_keyvalue, print_keyvalue,
+	doc_keyvalue, &cfg_rep_string, &trustanchor_kw
 };
 
 static cfg_tuplefielddef_t lookaside_fields[] = {
 	{ "domain", &cfg_type_astring, 0 },
-	{ "trust-anchor", &cfg_type_trustanchor, 0 },
+	{ "trust-anchor", &cfg_type_optional_trustanchor, 0 },
 	{ NULL, NULL, 0 }
 };
 
@@ -780,6 +1149,31 @@ static cfg_type_t cfg_type_lookaside = {
 	&cfg_rep_tuple, lookaside_fields
 };
 
+/*
+ * DNS64.
+ */
+static cfg_clausedef_t
+dns64_clauses[] = {
+	{ "clients", &cfg_type_bracketed_aml, 0 },
+	{ "mapped", &cfg_type_bracketed_aml, 0 },
+	{ "exclude", &cfg_type_bracketed_aml, 0 },
+	{ "suffix", &cfg_type_netaddr6, 0 },
+	{ "recursive-only", &cfg_type_boolean, 0 },
+	{ "break-dnssec", &cfg_type_boolean, 0 },
+	{ NULL, NULL, 0 },
+};
+
+static cfg_clausedef_t *
+dns64_clausesets[] = {
+	dns64_clauses,
+	NULL
+};
+
+static cfg_type_t cfg_type_dns64 = {
+	"dns64", cfg_parse_netprefix_map, cfg_print_map, cfg_doc_map,
+	&cfg_rep_map, dns64_clausesets
+};
+
 /*%
  * Clauses that can be found within the 'view' statement,
  * with defaults in the 'options' statement.
@@ -791,26 +1185,33 @@ view_clauses[] = {
 	{ "acache-enable", &cfg_type_boolean, 0 },
 	{ "additional-from-auth", &cfg_type_boolean, 0 },
 	{ "additional-from-cache", &cfg_type_boolean, 0 },
+	{ "allow-new-zones", &cfg_type_boolean, 0 },
 	{ "allow-query-cache", &cfg_type_bracketed_aml, 0 },
 	{ "allow-query-cache-on", &cfg_type_bracketed_aml, 0 },
 	{ "allow-recursion", &cfg_type_bracketed_aml, 0 },
 	{ "allow-recursion-on", &cfg_type_bracketed_aml, 0 },
 	{ "allow-v6-synthesis", &cfg_type_bracketed_aml,
 	  CFG_CLAUSEFLAG_OBSOLETE },
+	{ "attach-cache", &cfg_type_astring, 0 },
 	{ "auth-nxdomain", &cfg_type_boolean, CFG_CLAUSEFLAG_NEWDEFAULT },
 	{ "cache-file", &cfg_type_qstring, 0 },
 	{ "check-names", &cfg_type_checknames, CFG_CLAUSEFLAG_MULTI },
 	{ "cleaning-interval", &cfg_type_uint32, 0 },
 	{ "clients-per-query", &cfg_type_uint32, 0 },
+	{ "deny-answer-addresses", &cfg_type_denyaddresses, 0 },
+	{ "deny-answer-aliases", &cfg_type_denyaliases, 0 },
 	{ "disable-algorithms", &cfg_type_disablealgorithm,
 	  CFG_CLAUSEFLAG_MULTI },
 	{ "disable-empty-zone", &cfg_type_astring, CFG_CLAUSEFLAG_MULTI },
+	{ "dns64", &cfg_type_dns64, CFG_CLAUSEFLAG_MULTI },
+	{ "dns64-server", &cfg_type_astring, 0 },
+	{ "dns64-contact", &cfg_type_astring, 0 },
 	{ "dnssec-accept-expired", &cfg_type_boolean, 0 },
 	{ "dnssec-enable", &cfg_type_boolean, 0 },
 	{ "dnssec-lookaside", &cfg_type_lookaside, CFG_CLAUSEFLAG_MULTI },
 	{ "dnssec-must-be-secure",  &cfg_type_mustbesecure,
 	  CFG_CLAUSEFLAG_MULTI },
-	{ "dnssec-validation", &cfg_type_boolean, 0 },
+	{ "dnssec-validation", &cfg_type_boolorauto, 0 },
 	{ "dual-stack-servers", &cfg_type_nameportiplist, 0 },
 	{ "edns-udp-size", &cfg_type_uint32, 0 },
 	{ "empty-contact", &cfg_type_astring, 0 },
@@ -841,6 +1242,7 @@ view_clauses[] = {
 	{ "recursion", &cfg_type_boolean, 0 },
 	{ "request-ixfr", &cfg_type_boolean, 0 },
 	{ "request-nsid", &cfg_type_boolean, 0 },
+	{ "resolver-query-timeout", &cfg_type_uint32, 0 },
 	{ "rfc2308-type1", &cfg_type_boolean, CFG_CLAUSEFLAG_NYI },
 	{ "root-delegation-only",  &cfg_type_optional_exclude, 0 },
 	{ "rrset-order", &cfg_type_rrsetorder, 0 },
@@ -850,6 +1252,16 @@ view_clauses[] = {
 	{ "transfer-format", &cfg_type_transferformat, 0 },
 	{ "use-queryport-pool", &cfg_type_boolean, CFG_CLAUSEFLAG_OBSOLETE },
 	{ "zero-no-soa-ttl-cache", &cfg_type_boolean, 0 },
+#ifdef ALLOW_FILTER_AAAA_ON_V4
+	{ "filter-aaaa", &cfg_type_bracketed_aml, 0 },
+	{ "filter-aaaa-on-v4", &cfg_type_v4_aaaa, 0 },
+#else
+	{ "filter-aaaa", &cfg_type_bracketed_aml,
+	   CFG_CLAUSEFLAG_NOTCONFIGURED },
+	{ "filter-aaaa-on-v4", &cfg_type_v4_aaaa,
+	   CFG_CLAUSEFLAG_NOTCONFIGURED },
+#endif
+	{ "response-policy", &cfg_type_rpz, 0 },
 	{ NULL, NULL, 0 }
 };
 
@@ -920,6 +1332,7 @@ zone_clauses[] = {
 	{ "also-notify", &cfg_type_portiplist, 0 },
 	{ "alt-transfer-source", &cfg_type_sockaddr4wild, 0 },
 	{ "alt-transfer-source-v6", &cfg_type_sockaddr6wild, 0 },
+	{ "check-dup-records", &cfg_type_checkmode, 0 },
 	{ "check-integrity", &cfg_type_boolean, 0 },
 	{ "check-mx", &cfg_type_checkmode, 0 },
 	{ "check-mx-cname", &cfg_type_checkmode, 0 },
@@ -927,6 +1340,8 @@ zone_clauses[] = {
 	{ "check-srv-cname", &cfg_type_checkmode, 0 },
 	{ "check-wildcard", &cfg_type_boolean, 0 },
 	{ "dialup", &cfg_type_dialuptype, 0 },
+	{ "dnssec-dnskey-kskonly", &cfg_type_boolean, 0 },
+	{ "dnssec-secure-to-insecure", &cfg_type_boolean, 0 },
 	{ "forward", &cfg_type_forwardtype, 0 },
 	{ "forwarders", &cfg_type_portiplist, 0 },
 	{ "key-directory", &cfg_type_qstring, 0 },
@@ -986,6 +1401,9 @@ zone_only_clauses[] = {
 	 */
 	{ "check-names", &cfg_type_checkmode, 0 },
 	{ "ixfr-from-differences", &cfg_type_boolean, 0 },
+	{ "auto-dnssec", &cfg_type_autodnssec, 0 },
+	{ "server-addresses", &cfg_type_bracketed_sockaddrlist, 0 },
+	{ "server-names", &cfg_type_namelist, 0 },
 	{ NULL, NULL, 0 }
 };
 
@@ -998,12 +1416,40 @@ namedconf_clausesets[] = {
 	namedconf_or_view_clauses,
 	NULL
 };
-
 LIBISCCFG_EXTERNAL_DATA cfg_type_t cfg_type_namedconf = {
 	"namedconf", cfg_parse_mapbody, cfg_print_mapbody, cfg_doc_mapbody,
 	&cfg_rep_map, namedconf_clausesets
 };
 
+/*% The bind.keys syntax (trusted-keys/managed-keys only). */
+static cfg_clausedef_t *
+bindkeys_clausesets[] = {
+	bindkeys_clauses,
+	NULL
+};
+LIBISCCFG_EXTERNAL_DATA cfg_type_t cfg_type_bindkeys = {
+	"bindkeys", cfg_parse_mapbody, cfg_print_mapbody, cfg_doc_mapbody,
+	&cfg_rep_map, bindkeys_clausesets
+};
+
+/*% The new-zone-file syntax (for zones added by 'rndc addzone') */
+static cfg_clausedef_t
+newzones_clauses[] = {
+	{ "zone", &cfg_type_zone, CFG_CLAUSEFLAG_MULTI },
+	{ NULL, NULL, 0 }
+};
+
+static cfg_clausedef_t *
+newzones_clausesets[] = {
+	newzones_clauses,
+	NULL
+};
+
+LIBISCCFG_EXTERNAL_DATA cfg_type_t cfg_type_newzones = {
+	"newzones", cfg_parse_mapbody, cfg_print_mapbody, cfg_doc_mapbody,
+	&cfg_rep_map, newzones_clausesets
+};
+
 /*% The "options" statement syntax. */
 
 static cfg_clausedef_t *
@@ -1166,6 +1612,38 @@ static cfg_type_t cfg_type_logging = {
 	"logging", cfg_parse_map, cfg_print_map, cfg_doc_map, &cfg_rep_map, logging_clausesets };
 
 
+/*%
+ * For parsing an 'addzone' statement
+ */
+
+static cfg_tuplefielddef_t addzone_fields[] = {
+	{ "name", &cfg_type_astring, 0 },
+	{ "class", &cfg_type_optional_class, 0 },
+	{ "view", &cfg_type_optional_class, 0 },
+	{ "options", &cfg_type_zoneopts, 0 },
+	{ NULL, NULL, 0 }
+};
+static cfg_type_t cfg_type_addzone = {
+	"addzone", cfg_parse_tuple, cfg_print_tuple, cfg_doc_tuple, &cfg_rep_tuple, addzone_fields };
+
+static cfg_clausedef_t
+addzoneconf_clauses[] = {
+	{ "addzone", &cfg_type_addzone, 0 },
+	{ NULL, NULL, 0 }
+};
+
+static cfg_clausedef_t *
+addzoneconf_clausesets[] = {
+	addzoneconf_clauses,
+	NULL
+};
+
+LIBISCCFG_EXTERNAL_DATA cfg_type_t cfg_type_addzoneconf = {
+	"addzoneconf", cfg_parse_mapbody, cfg_print_mapbody, cfg_doc_mapbody,
+	&cfg_rep_map, addzoneconf_clausesets
+};
+
+
 static isc_result_t
 parse_unitstring(char *str, isc_resourcevalue_t *valuep) {
 	char *endp;
@@ -1385,6 +1863,17 @@ static cfg_type_t cfg_type_ixfrdifftype = {
 	&cfg_rep_string, ixfrdiff_enums,
 };
 
+static const char *v4_aaaa_enums[] = { "break-dnssec", NULL };
+static isc_result_t
+parse_v4_aaaa(cfg_parser_t *pctx, const cfg_type_t *type,
+		     cfg_obj_t **ret) {
+	return (parse_enum_or_other(pctx, type, &cfg_type_boolean, ret));
+}
+static cfg_type_t cfg_type_v4_aaaa = {
+	"v4_aaaa", parse_v4_aaaa, cfg_print_ustring,
+	doc_enum_or_other, &cfg_rep_string, v4_aaaa_enums,
+};
+
 static keyword_type_t key_kw = { "key", &cfg_type_astring };
 
 LIBISCCFG_EXTERNAL_DATA cfg_type_t cfg_type_keyref = {
@@ -2082,6 +2571,15 @@ LIBISCCFG_EXTERNAL_DATA cfg_type_t cfg_type_rndckey = {
 	&cfg_rep_map, rndckey_clausesets
 };
 
+/*
+ * session.key has exactly the same syntax as rndc.key, but it's defined
+ * separately for clarity (and so we can extend it someday, if needed).
+ */
+LIBISCCFG_EXTERNAL_DATA cfg_type_t cfg_type_sessionkey = {
+	"sessionkey", cfg_parse_mapbody, cfg_print_mapbody, cfg_doc_mapbody,
+	&cfg_rep_map, rndckey_clausesets
+};
+
 static cfg_tuplefielddef_t nameport_fields[] = {
 	{ "name", &cfg_type_astring, 0 },
 	{ "port", &cfg_type_optional_port, 0 },
diff --git a/contrib/bind9/lib/isccfg/parser.c b/contrib/bind9/lib/isccfg/parser.c
index 2f64a09..87ad391 100644
--- a/contrib/bind9/lib/isccfg/parser.c
+++ b/contrib/bind9/lib/isccfg/parser.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2008  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2011  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 2000-2003  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: parser.c,v 1.129 2008-09-25 04:02:39 tbox Exp $ */
+/* $Id: parser.c,v 1.139 2011-01-04 23:47:14 tbox Exp $ */
 
 /*! \file */
 
@@ -29,12 +29,12 @@
 #include <isc/mem.h>
 #include <isc/net.h>
 #include <isc/netaddr.h>
+#include <isc/netscope.h>
 #include <isc/print.h>
 #include <isc/string.h>
 #include <isc/sockaddr.h>
-#include <isc/netscope.h>
-#include <isc/util.h>
 #include <isc/symtab.h>
+#include <isc/util.h>
 
 #include <isccfg/cfg.h>
 #include <isccfg/grammar.h>
@@ -387,6 +387,12 @@ cfg_parser_create(isc_mem_t *mctx, isc_log_t *lctx, cfg_parser_t **ret) {
 	if (pctx == NULL)
 		return (ISC_R_NOMEMORY);
 
+	result = isc_refcount_init(&pctx->references, 1);
+	if (result != ISC_R_SUCCESS) {
+		isc_mem_put(mctx, pctx, sizeof(*pctx));
+		return (result);
+	}
+
 	pctx->mctx = mctx;
 	pctx->lctx = lctx;
 	pctx->lexer = NULL;
@@ -400,6 +406,7 @@ cfg_parser_create(isc_mem_t *mctx, isc_log_t *lctx, cfg_parser_t **ret) {
 	pctx->callback = NULL;
 	pctx->callbackarg = NULL;
 	pctx->token.type = isc_tokentype_unknown;
+	pctx->flags = 0;
 
 	memset(specials, 0, sizeof(specials));
 	specials['{'] = 1;
@@ -526,17 +533,30 @@ cfg_parse_buffer(cfg_parser_t *pctx, isc_buffer_t *buffer,
 }
 
 void
+cfg_parser_attach(cfg_parser_t *src, cfg_parser_t **dest) {
+	REQUIRE(src != NULL);
+	REQUIRE(dest != NULL && *dest == NULL);
+	isc_refcount_increment(&src->references, NULL);
+	*dest = src;
+}
+
+void
 cfg_parser_destroy(cfg_parser_t **pctxp) {
 	cfg_parser_t *pctx = *pctxp;
-	isc_lex_destroy(&pctx->lexer);
-	/*
-	 * Cleaning up open_files does not
-	 * close the files; that was already done
-	 * by closing the lexer.
-	 */
-	CLEANUP_OBJ(pctx->open_files);
-	CLEANUP_OBJ(pctx->closed_files);
-	isc_mem_put(pctx->mctx, pctx, sizeof(*pctx));
+	unsigned int refs;
+
+	isc_refcount_decrement(&pctx->references, &refs);
+	if (refs == 0) {
+		isc_lex_destroy(&pctx->lexer);
+		/*
+		 * Cleaning up open_files does not
+		 * close the files; that was already done
+		 * by closing the lexer.
+		 */
+		CLEANUP_OBJ(pctx->open_files);
+		CLEANUP_OBJ(pctx->closed_files);
+		isc_mem_put(pctx->mctx, pctx, sizeof(*pctx));
+	}
 	*pctxp = NULL;
 }
 
@@ -848,8 +868,8 @@ cfg_obj_asboolean(const cfg_obj_t *obj) {
 	return (obj->value.boolean);
 }
 
-static isc_result_t
-parse_boolean(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret)
+isc_result_t
+cfg_parse_boolean(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret)
 {
 	isc_result_t result;
 	isc_boolean_t value;
@@ -888,8 +908,8 @@ parse_boolean(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret)
 	return (result);
 }
 
-static void
-print_boolean(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+void
+cfg_print_boolean(cfg_printer_t *pctx, const cfg_obj_t *obj) {
 	if (obj->value.boolean)
 		cfg_print_chars(pctx, "yes", 3);
 	else
@@ -897,7 +917,7 @@ print_boolean(cfg_printer_t *pctx, const cfg_obj_t *obj) {
 }
 
 cfg_type_t cfg_type_boolean = {
-	"boolean", parse_boolean, print_boolean, cfg_doc_terminal,
+	"boolean", cfg_parse_boolean, cfg_print_boolean, cfg_doc_terminal,
 	&cfg_rep_boolean, NULL
 };
 
@@ -1132,7 +1152,7 @@ cfg_list_length(const cfg_obj_t *obj, isc_boolean_t recurse) {
 	return (count);
 }
 
-const cfg_obj_t *
+cfg_obj_t *
 cfg_listelt_value(const cfg_listelt_t *elt) {
 	REQUIRE(elt != NULL);
 	return (elt->obj);
@@ -1237,6 +1257,14 @@ cfg_parse_mapbody(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret)
 		if ((clause->flags & CFG_CLAUSEFLAG_NYI) != 0)
 			cfg_parser_warning(pctx, 0, "option '%s' is "
 				       "not implemented", clause->name);
+
+		if ((clause->flags & CFG_CLAUSEFLAG_NOTCONFIGURED) != 0) {
+			cfg_parser_warning(pctx, 0, "option '%s' is not "
+					   "configured", clause->name);
+			result = ISC_R_FAILURE;
+			goto cleanup;
+		}
+
 		/*
 		 * Don't log options with CFG_CLAUSEFLAG_NEWDEFAULT
 		 * set here - we need to log the *lack* of such an option,
@@ -1478,6 +1506,7 @@ static struct flagtext {
 	{ CFG_CLAUSEFLAG_OBSOLETE, "obsolete" },
 	{ CFG_CLAUSEFLAG_NEWDEFAULT, "default changed" },
 	{ CFG_CLAUSEFLAG_TESTONLY, "test only" },
+	{ CFG_CLAUSEFLAG_NOTCONFIGURED, "not configured" },
 	{ 0, NULL }
 };
 
@@ -2305,6 +2334,7 @@ cfg_obj_line(const cfg_obj_t *obj) {
 
 isc_result_t
 cfg_create_obj(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+	isc_result_t result;
 	cfg_obj_t *obj;
 
 	obj = isc_mem_get(pctx->mctx, sizeof(cfg_obj_t));
@@ -2313,10 +2343,16 @@ cfg_create_obj(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
 	obj->type = type;
 	obj->file = current_file(pctx);
 	obj->line = pctx->line;
+	result = isc_refcount_init(&obj->references, 1);
+	if (result != ISC_R_SUCCESS) {
+		isc_mem_put(pctx->mctx, obj, sizeof(cfg_obj_t));
+		return (result);
+	}
 	*ret = obj;
 	return (ISC_R_SUCCESS);
 }
 
+
 static void
 map_symtabitem_destroy(char *key, unsigned int type,
 		       isc_symvalue_t symval, void *userarg)
@@ -2370,11 +2406,25 @@ cfg_obj_istype(const cfg_obj_t *obj, const cfg_type_t *type) {
 void
 cfg_obj_destroy(cfg_parser_t *pctx, cfg_obj_t **objp) {
 	cfg_obj_t *obj = *objp;
-	obj->type->rep->free(pctx, obj);
-	isc_mem_put(pctx->mctx, obj, sizeof(cfg_obj_t));
+	unsigned int refs;
+
+	isc_refcount_decrement(&obj->references, &refs);
+	if (refs == 0) {
+		obj->type->rep->free(pctx, obj);
+		isc_refcount_destroy(&obj->references);
+		isc_mem_put(pctx->mctx, obj, sizeof(cfg_obj_t));
+	}
 	*objp = NULL;
 }
 
+void
+cfg_obj_attach(cfg_obj_t *src, cfg_obj_t **dest) {
+    REQUIRE(src != NULL);
+    REQUIRE(dest != NULL && *dest == NULL);
+    isc_refcount_increment(&src->references, NULL);
+    *dest = src;
+}
+
 static void
 free_noop(cfg_parser_t *pctx, cfg_obj_t *obj) {
 	UNUSED(pctx);