From 5ea77a75dd2d2158401331879f3c8f47940a732c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 18:35:32 +0200
Subject: Adding upstream version 2.5.13+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 servers/slapd/back-asyncmeta/config.c | 2443 +++++++++++++++++++++++++++++++++
 1 file changed, 2443 insertions(+)
 create mode 100644 servers/slapd/back-asyncmeta/config.c

(limited to 'servers/slapd/back-asyncmeta/config.c')

diff --git a/servers/slapd/back-asyncmeta/config.c b/servers/slapd/back-asyncmeta/config.c
new file mode 100644
index 0000000..849ac01
--- /dev/null
+++ b/servers/slapd/back-asyncmeta/config.c
@@ -0,0 +1,2443 @@
+/* config.c - configuration parsing for back-asyncmeta */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2016-2022 The OpenLDAP Foundation.
+ * Portions Copyright 2016 Symas Corporation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+/* ACKNOWLEDGEMENTS:
+ * This work was developed by Symas Corporation
+ * based on back-meta module for inclusion in OpenLDAP Software.
+ * This work was sponsored by Ericsson. */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ctype.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+#include "slap-config.h"
+#include "lutil.h"
+#include "ldif.h"
+#include "../back-ldap/back-ldap.h"
+#include "back-asyncmeta.h"
+
+#ifdef LDAP_DEVEL
+#define SLAP_AUTH_DN	1
+#endif
+
+static ConfigDriver asyncmeta_back_cf_gen;
+static ConfigLDAPadd asyncmeta_ldadd;
+static ConfigCfAdd asyncmeta_cfadd;
+
+/* Three sets of enums:
+ *	1) attrs that are only valid in the base config
+ *	2) attrs that are valid in base or target
+ *	3) attrs that are only valid in a target
+ */
+
+/* Base attrs */
+enum {
+	LDAP_BACK_CFG_DNCACHE_TTL = 1,
+	LDAP_BACK_CFG_IDLE_TIMEOUT,
+	LDAP_BACK_CFG_ONERR,
+	LDAP_BACK_CFG_PSEUDOROOT_BIND_DEFER,
+	LDAP_BACK_CFG_CONNPOOLMAX,
+	LDAP_BACK_CFG_MAX_TIMEOUT_OPS,
+	LDAP_BACK_CFG_MAX_PENDING_OPS,
+	LDAP_BACK_CFG_MAX_TARGET_CONNS,
+	LDAP_BACK_CFG_LAST_BASE,
+};
+
+/* Base or target */
+enum {
+	LDAP_BACK_CFG_BIND_TIMEOUT = LDAP_BACK_CFG_LAST_BASE,
+	LDAP_BACK_CFG_CANCEL,
+	LDAP_BACK_CFG_CHASE,
+	LDAP_BACK_CFG_CLIENT_PR,
+	LDAP_BACK_CFG_DEFAULT_T,
+	LDAP_BACK_CFG_NETWORK_TIMEOUT,
+	LDAP_BACK_CFG_NOREFS,
+	LDAP_BACK_CFG_NOUNDEFFILTER,
+	LDAP_BACK_CFG_NRETRIES,
+	LDAP_BACK_CFG_QUARANTINE,
+	LDAP_BACK_CFG_REBIND,
+	LDAP_BACK_CFG_TIMEOUT,
+	LDAP_BACK_CFG_VERSION,
+	LDAP_BACK_CFG_ST_REQUEST,
+	LDAP_BACK_CFG_T_F,
+	LDAP_BACK_CFG_TLS,
+	LDAP_BACK_CFG_LAST_BOTH
+};
+
+/* Target attrs */
+enum {
+	LDAP_BACK_CFG_URI = LDAP_BACK_CFG_LAST_BOTH,
+	LDAP_BACK_CFG_IDASSERT_AUTHZFROM,
+	LDAP_BACK_CFG_IDASSERT_BIND,
+	LDAP_BACK_CFG_SUFFIXM,
+	LDAP_BACK_CFG_SUBTREE_EX,
+	LDAP_BACK_CFG_SUBTREE_IN,
+	LDAP_BACK_CFG_KEEPALIVE,
+	LDAP_BACK_CFG_FILTER,
+	LDAP_BACK_CFG_TCP_USER_TIMEOUT,
+	LDAP_BACK_CFG_LAST
+};
+
+static ConfigTable a_metacfg[] = {
+	{ "uri", "uri", 2, 0, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_URI,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:0.14 "
+			"NAME 'olcDbURI' "
+			"DESC 'URI (list) for remote DSA' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "tls", "what", 2, 0, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_TLS,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.1 "
+			"NAME 'olcDbStartTLS' "
+			"DESC 'StartTLS' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "idassert-bind", "args", 2, 0, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_BIND,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.7 "
+			"NAME 'olcDbIDAssertBind' "
+			"DESC 'Remote Identity Assertion administrative identity auth bind configuration' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "idassert-authzFrom", "authzRule", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_AUTHZFROM,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.9 "
+			"NAME 'olcDbIDAssertAuthzFrom' "
+			"DESC 'Remote Identity Assertion authz rules' "
+			"EQUALITY caseIgnoreMatch "
+			"SYNTAX OMsDirectoryString "
+			"X-ORDERED 'VALUES' )",
+		NULL, NULL },
+	{ "rebind-as-user", "true|FALSE", 1, 2, 0,
+		ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_REBIND,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.10 "
+			"NAME 'olcDbRebindAsUser' "
+			"DESC 'Rebind as user' "
+			"SYNTAX OMsBoolean "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "chase-referrals", "true|FALSE", 2, 2, 0,
+		ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_CHASE,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.11 "
+			"NAME 'olcDbChaseReferrals' "
+			"DESC 'Chase referrals' "
+			"SYNTAX OMsBoolean "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "t-f-support", "true|FALSE|discover", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_T_F,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.12 "
+			"NAME 'olcDbTFSupport' "
+			"DESC 'Absolute filters support' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "timeout", "timeout(list)", 2, 0, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_TIMEOUT,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.14 "
+			"NAME 'olcDbTimeout' "
+			"DESC 'Per-operation timeouts' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "idle-timeout", "timeout", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_IDLE_TIMEOUT,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.15 "
+			"NAME 'olcDbIdleTimeout' "
+			"DESC 'connection idle timeout' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "network-timeout", "timeout", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_NETWORK_TIMEOUT,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.17 "
+			"NAME 'olcDbNetworkTimeout' "
+			"DESC 'connection network timeout' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "protocol-version", "version", 2, 2, 0,
+		ARG_MAGIC|ARG_INT|LDAP_BACK_CFG_VERSION,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.18 "
+			"NAME 'olcDbProtocolVersion' "
+			"DESC 'protocol version' "
+			"SYNTAX OMsInteger "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+
+	{ "cancel", "ABANDON|ignore|exop", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_CANCEL,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.20 "
+			"NAME 'olcDbCancel' "
+			"DESC 'abandon/ignore/exop operations when appropriate' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "quarantine", "retrylist", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_QUARANTINE,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.21 "
+			"NAME 'olcDbQuarantine' "
+			"DESC 'Quarantine database if connection fails and retry according to rule' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+
+	{ "conn-pool-max", "<n>", 2, 2, 0,
+		ARG_MAGIC|ARG_INT|LDAP_BACK_CFG_CONNPOOLMAX,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.23 "
+			"NAME 'olcDbConnectionPoolMax' "
+			"DESC 'Max size of privileged connections pool' "
+			"SYNTAX OMsInteger "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+#ifdef SLAP_CONTROL_X_SESSION_TRACKING
+	{ "session-tracking-request", "true|FALSE", 2, 2, 0,
+		ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_ST_REQUEST,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.24 "
+			"NAME 'olcDbSessionTrackingRequest' "
+			"DESC 'Add session tracking control to proxied requests' "
+			"SYNTAX OMsBoolean "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+#endif /* SLAP_CONTROL_X_SESSION_TRACKING */
+	{ "norefs", "true|FALSE", 2, 2, 0,
+		ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_NOREFS,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.25 "
+			"NAME 'olcDbNoRefs' "
+			"DESC 'Do not return search reference responses' "
+			"SYNTAX OMsBoolean "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "noundeffilter", "true|FALSE", 2, 2, 0,
+		ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_NOUNDEFFILTER,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.26 "
+			"NAME 'olcDbNoUndefFilter' "
+			"DESC 'Do not propagate undefined search filters' "
+			"SYNTAX OMsBoolean "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+
+	{ "suffixmassage", "local> <remote", 2, 3, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_SUFFIXM,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.117 "
+			"NAME 'olcDbSuffixMassage' "
+			"DESC 'DN suffix massage' "
+			"EQUALITY caseIgnoreMatch "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+
+	{ "subtree-exclude", "pattern", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_SUBTREE_EX,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.103 "
+			"NAME 'olcDbSubtreeExclude' "
+			"DESC 'DN of subtree to exclude from target' "
+			"EQUALITY caseIgnoreMatch "
+			"SYNTAX OMsDirectoryString )",
+		NULL, NULL },
+	{ "subtree-include", "pattern", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_SUBTREE_IN,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.104 "
+			"NAME 'olcDbSubtreeInclude' "
+			"DESC 'DN of subtree to include in target' "
+			"EQUALITY caseIgnoreMatch "
+			"SYNTAX OMsDirectoryString )",
+		NULL, NULL },
+	{ "default-target", "[none|<target ID>]", 1, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_DEFAULT_T,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.105 "
+			"NAME 'olcDbDefaultTarget' "
+			"DESC 'Specify the default target' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "dncache-ttl", "ttl", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_DNCACHE_TTL,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.106 "
+			"NAME 'olcDbDnCacheTtl' "
+			"DESC 'dncache ttl' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "bind-timeout", "microseconds", 2, 2, 0,
+		ARG_MAGIC|ARG_ULONG|LDAP_BACK_CFG_BIND_TIMEOUT,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.107 "
+			"NAME 'olcDbBindTimeout' "
+			"DESC 'bind timeout' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "onerr", "CONTINUE|report|stop", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_ONERR,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.108 "
+			"NAME 'olcDbOnErr' "
+			"DESC 'error handling' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "pseudoroot-bind-defer", "TRUE|false", 2, 2, 0,
+		ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_PSEUDOROOT_BIND_DEFER,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.109 "
+			"NAME 'olcDbPseudoRootBindDefer' "
+			"DESC 'error handling' "
+			"SYNTAX OMsBoolean "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "root-bind-defer", "TRUE|false", 2, 2, 0,
+		ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_PSEUDOROOT_BIND_DEFER,
+		asyncmeta_back_cf_gen, NULL, NULL, NULL },
+	{ "nretries", "NEVER|forever|<number>", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_NRETRIES,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.110 "
+			"NAME 'olcDbNretries' "
+			"DESC 'retry handling' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+	{ "client-pr", "accept-unsolicited|disable|<size>", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_CLIENT_PR,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.111 "
+			"NAME 'olcDbClientPr' "
+			"DESC 'PagedResults handling' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+
+	{ "", "", 0, 0, 0, ARG_IGNORED,
+		NULL, "( OLcfgDbAt:3.116 NAME 'olcAsyncMetaSub' "
+			"DESC 'Placeholder to name a Target entry' "
+			"EQUALITY caseIgnoreMatch "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE X-ORDERED 'SIBLINGS' )", NULL, NULL },
+
+	{ "keepalive", "keepalive", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_KEEPALIVE,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.29 "
+			"NAME 'olcDbKeepalive' "
+			"DESC 'TCP keepalive' "
+			"SYNTAX OMsDirectoryString "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+
+	{ "tcp-user-timeout", "milliseconds", 2, 2, 0,
+		ARG_MAGIC|ARG_UINT|LDAP_BACK_CFG_TCP_USER_TIMEOUT,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.30 "
+			"NAME 'olcDbTcpUserTimeout' "
+			"DESC 'TCP User Timeout' "
+			"SYNTAX OMsInteger "
+			"SINGLE-VALUE )",
+		NULL, NULL },
+
+	{ "filter", "pattern", 2, 2, 0,
+		ARG_MAGIC|LDAP_BACK_CFG_FILTER,
+		asyncmeta_back_cf_gen, "( OLcfgDbAt:3.112 "
+			"NAME 'olcDbFilter' "
+			"DESC 'Filter regex pattern to include in target' "
+			"EQUALITY caseExactMatch "
+			"SYNTAX OMsDirectoryString )",
+		NULL, NULL },
+
+	{ "max-pending-ops", "<n>", 2, 2, 0,
+	  ARG_MAGIC|ARG_INT|LDAP_BACK_CFG_MAX_PENDING_OPS,
+	  asyncmeta_back_cf_gen, "( OLcfgDbAt:3.113 "
+	  "NAME 'olcDbMaxPendingOps' "
+	  "DESC 'Maximum number of pending operations' "
+	  "SYNTAX OMsInteger "
+	  "SINGLE-VALUE )",
+	  NULL, NULL },
+
+	{ "max-target-conns", "<n>", 2, 2, 0,
+	  ARG_MAGIC|ARG_INT|LDAP_BACK_CFG_MAX_TARGET_CONNS,
+	  asyncmeta_back_cf_gen, "( OLcfgDbAt:3.114 "
+	  "NAME 'olcDbMaxTargetConns' "
+	  "DESC 'Maximum number of open connections per target' "
+	  "SYNTAX OMsInteger "
+	  "SINGLE-VALUE )",
+	  NULL, NULL },
+
+	{ "max-timeout-ops", "<n>", 2, 2, 0,
+	  ARG_MAGIC|ARG_INT|LDAP_BACK_CFG_MAX_TIMEOUT_OPS,
+	  asyncmeta_back_cf_gen, "( OLcfgDbAt:3.115 "
+	  "NAME 'olcDbMaxTimeoutOps' "
+	  "DESC 'Maximum number of consecutive timeout operations after which the connection is reset' "
+	  "SYNTAX OMsInteger "
+	  "SINGLE-VALUE )",
+	  NULL, NULL },
+
+	{ NULL, NULL, 0, 0, 0, ARG_IGNORED,
+		NULL, NULL, NULL, NULL }
+};
+
+#ifdef SLAP_CONTROL_X_SESSION_TRACKING
+#define	ST_ATTR "$ olcDbSessionTrackingRequest "
+#else
+#define	ST_ATTR ""
+#endif /* SLAP_CONTROL_X_SESSION_TRACKING */
+
+#define COMMON_ATTRS	\
+			"$ olcDbBindTimeout " \
+			"$ olcDbCancel " \
+			"$ olcDbChaseReferrals " \
+			"$ olcDbClientPr " \
+			"$ olcDbDefaultTarget " \
+			"$ olcDbNetworkTimeout " \
+			"$ olcDbNoRefs " \
+			"$ olcDbNoUndefFilter " \
+			"$ olcDbNretries " \
+			"$ olcDbProtocolVersion " \
+			"$ olcDbQuarantine " \
+			"$ olcDbRebindAsUser " \
+			ST_ATTR \
+			"$ olcDbStartTLS " \
+			"$ olcDbTFSupport "
+
+static ConfigOCs a_metaocs[] = {
+	{ "( OLcfgDbOc:3.4 "
+		"NAME 'olcAsyncMetaConfig' "
+		"DESC 'Asyncmeta backend configuration' "
+		"SUP olcDatabaseConfig "
+		"MAY ( olcDbDnCacheTtl "
+			"$ olcDbIdleTimeout "
+			"$ olcDbOnErr "
+			"$ olcDbPseudoRootBindDefer "
+			"$ olcDbConnectionPoolMax "
+	                "$ olcDbMaxTimeoutOps"
+	                "$ olcDbMaxPendingOps "
+	                "$ olcDbMaxTargetConns"
+			/* defaults, may be overridden per-target */
+			COMMON_ATTRS
+		") )",
+			Cft_Database, a_metacfg, NULL, asyncmeta_cfadd },
+	{ "( OLcfgDbOc:3.5 "
+		"NAME 'olcAsyncMetaTargetConfig' "
+		"DESC 'Asyncmeta target configuration' "
+		"SUP olcConfig STRUCTURAL "
+		"MUST ( olcAsyncMetaSub $ olcDbURI ) "
+		"MAY ( olcDbIDAssertAuthzFrom "
+			"$ olcDbIDAssertBind "
+			"$ olcDbSuffixMassage "
+			"$ olcDbSubtreeExclude "
+			"$ olcDbSubtreeInclude "
+			"$ olcDbTimeout "
+			"$ olcDbKeepalive "
+			"$ olcDbFilter "
+			"$ olcDbTcpUserTimeout "
+
+			/* defaults may be inherited */
+			COMMON_ATTRS
+		") )",
+			Cft_Misc, a_metacfg, asyncmeta_ldadd },
+	{ NULL, 0, NULL }
+};
+
+static int
+asyncmeta_ldadd( CfEntryInfo *p, Entry *e, ConfigArgs *c )
+{
+	if ( p->ce_type != Cft_Database || !p->ce_be ||
+		p->ce_be->be_cf_ocs != a_metaocs )
+		return LDAP_CONSTRAINT_VIOLATION;
+
+	c->be = p->ce_be;
+	return LDAP_SUCCESS;
+}
+
+static int
+asyncmeta_cfadd( Operation *op, SlapReply *rs, Entry *p, ConfigArgs *c )
+{
+	a_metainfo_t	*mi = ( a_metainfo_t * )c->be->be_private;
+	struct berval bv;
+	int i;
+
+	bv.bv_val = c->cr_msg;
+	for ( i=0; i<mi->mi_ntargets; i++ ) {
+		bv.bv_len = snprintf( c->cr_msg, sizeof(c->cr_msg),
+			"olcAsyncMetaSub=" SLAP_X_ORDERED_FMT "uri", i );
+		c->ca_private = mi->mi_targets[i];
+		c->valx = i;
+		config_build_entry( op, rs, p->e_private, c,
+			&bv, &a_metaocs[1], NULL );
+	}
+
+	return LDAP_SUCCESS;
+}
+
+static int
+asyncmeta_back_new_target(
+	a_metatarget_t	**mtp )
+{
+	a_metatarget_t		*mt;
+
+	*mtp = NULL;
+
+	mt = ch_calloc( sizeof( a_metatarget_t ), 1 );
+
+	ldap_pvt_thread_mutex_init( &mt->mt_uri_mutex );
+
+	mt->mt_idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
+	mt->mt_idassert_authmethod = LDAP_AUTH_NONE;
+	mt->mt_idassert_tls = SB_TLS_DEFAULT;
+	/* by default, use proxyAuthz control on each operation */
+	mt->mt_idassert_flags = LDAP_BACK_AUTH_PRESCRIPTIVE;
+
+	*mtp = mt;
+
+	return 0;
+}
+
+/* suffixmassage config */
+static int
+asyncmeta_suffixm_config(
+	ConfigArgs *c,
+	int argc,
+	char **argv,
+	a_metatarget_t *mt
+)
+{
+	BackendDB 	*tmp_bd;
+	struct berval	dn, nvnc, pvnc, nrnc, prnc;
+	int j;
+
+	/*
+	 * syntax:
+	 *
+	 * 	suffixmassage <local suffix> <remote suffix>
+	 *
+	 * the <local suffix> field must be defined as a valid suffix
+	 * (or suffixAlias?) for the current database;
+	 * the <remote suffix> shouldn't have already been
+	 * defined as a valid suffix or suffixAlias for the
+	 * current server
+	 */
+
+	ber_str2bv( argv[ 1 ], 0, 0, &dn );
+	if ( dnPrettyNormal( NULL, &dn, &pvnc, &nvnc, NULL ) != LDAP_SUCCESS ) {
+		snprintf( c->cr_msg, sizeof( c->cr_msg ),
+			"suffix \"%s\" is invalid",
+			argv[1] );
+		Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+		return 1;
+	}
+
+	for ( j = 0; !BER_BVISNULL( &c->be->be_nsuffix[ j ] ); j++ ) {
+		if ( dnIsSuffix( &nvnc, &c->be->be_nsuffix[ 0 ] ) ) {
+			break;
+		}
+	}
+
+	if ( BER_BVISNULL( &c->be->be_nsuffix[ j ] ) ) {
+		snprintf( c->cr_msg, sizeof( c->cr_msg ),
+			"suffix \"%s\" must be within the database naming context",
+			argv[1] );
+		Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+		free( pvnc.bv_val );
+		free( nvnc.bv_val );
+		return 1;
+	}
+
+	ber_str2bv( argv[ 2 ], 0, 0, &dn );
+	if ( dnPrettyNormal( NULL, &dn, &prnc, &nrnc, NULL ) != LDAP_SUCCESS ) {
+		snprintf( c->cr_msg, sizeof( c->cr_msg ),
+			"massaged suffix \"%s\" is invalid",
+			argv[2] );
+		Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+		free( pvnc.bv_val );
+		free( nvnc.bv_val );
+		return 1;
+	}
+
+	tmp_bd = select_backend( &nrnc, 0 );
+	if ( tmp_bd != NULL && tmp_bd->be_private == c->be->be_private ) {
+		Debug( LDAP_DEBUG_ANY,
+	"%s: warning: <massaged suffix> \"%s\" resolves to this database, in "
+	"\"suffixMassage <suffix> <massaged suffix>\"\n",
+			c->log, prnc.bv_val );
+	}
+
+	mt->mt_lsuffixm = pvnc;
+	mt->mt_rsuffixm = prnc;
+
+	free( nvnc.bv_val );
+	free( nrnc.bv_val );
+
+	return 0;
+}
+
+int
+asyncmeta_subtree_free( a_metasubtree_t *ms )
+{
+	switch ( ms->ms_type ) {
+	case META_ST_SUBTREE:
+	case META_ST_SUBORDINATE:
+		ber_memfree( ms->ms_dn.bv_val );
+		break;
+
+	case META_ST_REGEX:
+		regfree( &ms->ms_regex );
+		ber_memfree( ms->ms_regex_pattern.bv_val );
+		break;
+
+	default:
+		return -1;
+	}
+
+	ch_free( ms );
+	return 0;
+}
+
+int
+asyncmeta_subtree_destroy( a_metasubtree_t *ms )
+{
+	if ( ms->ms_next ) {
+		asyncmeta_subtree_destroy( ms->ms_next );
+	}
+
+	return asyncmeta_subtree_free( ms );
+}
+
+static void
+asyncmeta_filter_free( metafilter_t *mf )
+{
+	regfree( &mf->mf_regex );
+	ber_memfree( mf->mf_regex_pattern.bv_val );
+	ch_free( mf );
+}
+
+void
+asyncmeta_filter_destroy( metafilter_t *mf )
+{
+	if ( mf->mf_next )
+		asyncmeta_filter_destroy( mf->mf_next );
+	asyncmeta_filter_free( mf );
+}
+
+static struct berval st_styles[] = {
+	BER_BVC("subtree"),
+	BER_BVC("children"),
+	BER_BVC("regex")
+};
+
+static int
+asyncmeta_subtree_unparse(
+	ConfigArgs *c,
+	a_metatarget_t *mt )
+{
+	a_metasubtree_t	*ms;
+	struct berval bv, *style;
+
+	if ( !mt->mt_subtree )
+		return 1;
+
+	/* can only be one of exclude or include */
+	if (( c->type == LDAP_BACK_CFG_SUBTREE_EX ) ^ mt->mt_subtree_exclude )
+		return 1;
+
+	bv.bv_val = c->cr_msg;
+	for ( ms=mt->mt_subtree; ms; ms=ms->ms_next ) {
+		if (ms->ms_type == META_ST_SUBTREE)
+			style = &st_styles[0];
+		else if ( ms->ms_type == META_ST_SUBORDINATE )
+			style = &st_styles[1];
+		else if ( ms->ms_type == META_ST_REGEX )
+			style = &st_styles[2];
+		else {
+			assert(0);
+			continue;
+		}
+		bv.bv_len = snprintf( c->cr_msg, sizeof(c->cr_msg),
+			"dn.%s:%s", style->bv_val, ms->ms_dn.bv_val );
+		value_add_one( &c->rvalue_vals, &bv );
+	}
+	return 0;
+}
+
+static int
+asyncmeta_subtree_config(
+	a_metatarget_t *mt,
+	ConfigArgs *c )
+{
+	meta_st_t	type = META_ST_SUBTREE;
+	char		*pattern;
+	struct berval	ndn = BER_BVNULL;
+	a_metasubtree_t	*ms = NULL;
+
+	if ( c->type == LDAP_BACK_CFG_SUBTREE_EX ) {
+		if ( mt->mt_subtree && !mt->mt_subtree_exclude ) {
+			snprintf( c->cr_msg, sizeof(c->cr_msg),
+				"\"subtree-exclude\" incompatible with previous \"subtree-include\" directives" );
+			return 1;
+		}
+
+		mt->mt_subtree_exclude = 1;
+
+	} else {
+		if ( mt->mt_subtree && mt->mt_subtree_exclude ) {
+			snprintf( c->cr_msg, sizeof(c->cr_msg),
+				"\"subtree-include\" incompatible with previous \"subtree-exclude\" directives" );
+			return 1;
+		}
+	}
+
+	pattern = c->argv[1];
+	if ( strncasecmp( pattern, "dn", STRLENOF( "dn" ) ) == 0 ) {
+		char *style;
+
+		pattern = &pattern[STRLENOF( "dn")];
+
+		if ( pattern[0] == '.' ) {
+			style = &pattern[1];
+
+			if ( strncasecmp( style, "subtree", STRLENOF( "subtree" ) ) == 0 ) {
+				type = META_ST_SUBTREE;
+				pattern = &style[STRLENOF( "subtree" )];
+
+			} else if ( strncasecmp( style, "children", STRLENOF( "children" ) ) == 0 ) {
+				type = META_ST_SUBORDINATE;
+				pattern = &style[STRLENOF( "children" )];
+
+			} else if ( strncasecmp( style, "sub", STRLENOF( "sub" ) ) == 0 ) {
+				type = META_ST_SUBTREE;
+				pattern = &style[STRLENOF( "sub" )];
+
+			} else if ( strncasecmp( style, "regex", STRLENOF( "regex" ) ) == 0 ) {
+				type = META_ST_REGEX;
+				pattern = &style[STRLENOF( "regex" )];
+
+			} else {
+				snprintf( c->cr_msg, sizeof(c->cr_msg), "unknown style in \"dn.<style>\"" );
+				return 1;
+			}
+		}
+
+		if ( pattern[0] != ':' ) {
+			snprintf( c->cr_msg, sizeof(c->cr_msg), "missing colon after \"dn.<style>\"" );
+			return 1;
+		}
+		pattern++;
+	}
+
+	switch ( type ) {
+	case META_ST_SUBTREE:
+	case META_ST_SUBORDINATE: {
+		struct berval dn;
+
+		ber_str2bv( pattern, 0, 0, &dn );
+		if ( dnNormalize( 0, NULL, NULL, &dn, &ndn, NULL )
+			!= LDAP_SUCCESS )
+		{
+			snprintf( c->cr_msg, sizeof(c->cr_msg), "DN=\"%s\" is invalid", pattern );
+			return 1;
+		}
+
+		if ( !dnIsSuffix( &ndn, &mt->mt_nsuffix ) ) {
+			snprintf( c->cr_msg, sizeof(c->cr_msg),
+				"DN=\"%s\" is not a subtree of target \"%s\"",
+				pattern, mt->mt_nsuffix.bv_val );
+			ber_memfree( ndn.bv_val );
+			return( 1 );
+		}
+		} break;
+
+	default:
+		/* silence warnings */
+		break;
+	}
+
+	ms = ch_calloc( sizeof( a_metasubtree_t ), 1 );
+	ms->ms_type = type;
+
+	switch ( ms->ms_type ) {
+	case META_ST_SUBTREE:
+	case META_ST_SUBORDINATE:
+		ms->ms_dn = ndn;
+		break;
+
+	case META_ST_REGEX: {
+		int rc;
+
+		rc = regcomp( &ms->ms_regex, pattern, REG_EXTENDED|REG_ICASE );
+		if ( rc != 0 ) {
+			char regerr[ SLAP_TEXT_BUFLEN ];
+
+			regerror( rc, &ms->ms_regex, regerr, sizeof(regerr) );
+
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"regular expression \"%s\" bad because of %s",
+				pattern, regerr );
+			ch_free( ms );
+			return 1;
+		}
+		ber_str2bv( pattern, 0, 1, &ms->ms_regex_pattern );
+		} break;
+	}
+
+	if ( mt->mt_subtree == NULL ) {
+		 mt->mt_subtree = ms;
+
+	} else {
+		a_metasubtree_t **msp;
+
+		for ( msp = &mt->mt_subtree; *msp; ) {
+			switch ( ms->ms_type ) {
+			case META_ST_SUBTREE:
+				switch ( (*msp)->ms_type ) {
+				case META_ST_SUBTREE:
+					if ( dnIsSuffix( &(*msp)->ms_dn, &ms->ms_dn ) ) {
+						a_metasubtree_t *tmp = *msp;
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.subtree:%s\" is contained in rule \"dn.subtree:%s\" (replaced)\n",
+							c->log, pattern, (*msp)->ms_dn.bv_val );
+						*msp = (*msp)->ms_next;
+						tmp->ms_next = NULL;
+						asyncmeta_subtree_destroy( tmp );
+						continue;
+
+					} else if ( dnIsSuffix( &ms->ms_dn, &(*msp)->ms_dn ) ) {
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.subtree:%s\" contains rule \"dn.subtree:%s\" (ignored)\n",
+							c->log, (*msp)->ms_dn.bv_val, pattern );
+						asyncmeta_subtree_destroy( ms );
+						ms = NULL;
+						return( 0 );
+					}
+					break;
+
+				case META_ST_SUBORDINATE:
+					if ( dnIsSuffix( &(*msp)->ms_dn, &ms->ms_dn ) ) {
+						a_metasubtree_t *tmp = *msp;
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.children:%s\" is contained in rule \"dn.subtree:%s\" (replaced)\n",
+							c->log, pattern, (*msp)->ms_dn.bv_val );
+						*msp = (*msp)->ms_next;
+						tmp->ms_next = NULL;
+						asyncmeta_subtree_destroy( tmp );
+						continue;
+
+					} else if ( dnIsSuffix( &ms->ms_dn, &(*msp)->ms_dn ) && ms->ms_dn.bv_len > (*msp)->ms_dn.bv_len ) {
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.children:%s\" contains rule \"dn.subtree:%s\" (ignored)\n",
+							c->log, (*msp)->ms_dn.bv_val, pattern );
+						asyncmeta_subtree_destroy( ms );
+						ms = NULL;
+						return( 0 );
+					}
+					break;
+
+				case META_ST_REGEX:
+					if ( regexec( &(*msp)->ms_regex, ms->ms_dn.bv_val, 0, NULL, 0 ) == 0 ) {
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.regex:%s\" may contain rule \"dn.subtree:%s\"\n",
+							c->log, (*msp)->ms_regex_pattern.bv_val, ms->ms_dn.bv_val );
+					}
+					break;
+				}
+				break;
+
+			case META_ST_SUBORDINATE:
+				switch ( (*msp)->ms_type ) {
+				case META_ST_SUBTREE:
+					if ( dnIsSuffix( &(*msp)->ms_dn, &ms->ms_dn ) ) {
+						a_metasubtree_t *tmp = *msp;
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.children:%s\" is contained in rule \"dn.subtree:%s\" (replaced)\n",
+							c->log, pattern, (*msp)->ms_dn.bv_val );
+						*msp = (*msp)->ms_next;
+						tmp->ms_next = NULL;
+						asyncmeta_subtree_destroy( tmp );
+						continue;
+
+					} else if ( dnIsSuffix( &ms->ms_dn, &(*msp)->ms_dn ) && ms->ms_dn.bv_len > (*msp)->ms_dn.bv_len ) {
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.children:%s\" contains rule \"dn.subtree:%s\" (ignored)\n",
+							c->log, (*msp)->ms_dn.bv_val, pattern );
+						asyncmeta_subtree_destroy( ms );
+						ms = NULL;
+						return( 0 );
+					}
+					break;
+
+				case META_ST_SUBORDINATE:
+					if ( dnIsSuffix( &(*msp)->ms_dn, &ms->ms_dn ) ) {
+						a_metasubtree_t *tmp = *msp;
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.children:%s\" is contained in rule \"dn.children:%s\" (replaced)\n",
+							c->log, pattern, (*msp)->ms_dn.bv_val );
+						*msp = (*msp)->ms_next;
+						tmp->ms_next = NULL;
+						asyncmeta_subtree_destroy( tmp );
+						continue;
+
+					} else if ( dnIsSuffix( &ms->ms_dn, &(*msp)->ms_dn ) ) {
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.children:%s\" contains rule \"dn.children:%s\" (ignored)\n",
+							c->log, (*msp)->ms_dn.bv_val, pattern );
+						asyncmeta_subtree_destroy( ms );
+						ms = NULL;
+						return( 0 );
+					}
+					break;
+
+				case META_ST_REGEX:
+					if ( regexec( &(*msp)->ms_regex, ms->ms_dn.bv_val, 0, NULL, 0 ) == 0 ) {
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.regex:%s\" may contain rule \"dn.subtree:%s\"\n",
+							c->log, (*msp)->ms_regex_pattern.bv_val, ms->ms_dn.bv_val );
+					}
+					break;
+				}
+				break;
+
+			case META_ST_REGEX:
+				switch ( (*msp)->ms_type ) {
+				case META_ST_SUBTREE:
+				case META_ST_SUBORDINATE:
+					if ( regexec( &ms->ms_regex, (*msp)->ms_dn.bv_val, 0, NULL, 0 ) == 0 ) {
+						Debug( LDAP_DEBUG_CONFIG,
+							"%s: previous rule \"dn.subtree:%s\" may be contained in rule \"dn.regex:%s\"\n",
+							c->log, (*msp)->ms_dn.bv_val, ms->ms_regex_pattern.bv_val );
+					}
+					break;
+
+				case META_ST_REGEX:
+					/* no check possible */
+					break;
+				}
+				break;
+			}
+
+			msp = &(*msp)->ms_next;
+		}
+
+		*msp = ms;
+	}
+
+	return 0;
+}
+
+static slap_verbmasks idassert_mode[] = {
+	{ BER_BVC("self"),		LDAP_BACK_IDASSERT_SELF },
+	{ BER_BVC("anonymous"),		LDAP_BACK_IDASSERT_ANONYMOUS },
+	{ BER_BVC("none"),		LDAP_BACK_IDASSERT_NOASSERT },
+	{ BER_BVC("legacy"),		LDAP_BACK_IDASSERT_LEGACY },
+	{ BER_BVNULL,			0 }
+};
+
+static slap_verbmasks tls_mode[] = {
+	{ BER_BVC( "propagate" ),	LDAP_BACK_F_TLS_PROPAGATE_MASK },
+	{ BER_BVC( "try-propagate" ),	LDAP_BACK_F_PROPAGATE_TLS },
+	{ BER_BVC( "start" ),		LDAP_BACK_F_TLS_USE_MASK },
+	{ BER_BVC( "try-start" ),	LDAP_BACK_F_USE_TLS },
+	{ BER_BVC( "ldaps" ),		LDAP_BACK_F_TLS_LDAPS },
+	{ BER_BVC( "none" ),		LDAP_BACK_F_NONE },
+	{ BER_BVNULL,			0 }
+};
+
+static slap_verbmasks t_f_mode[] = {
+	{ BER_BVC( "yes" ),		LDAP_BACK_F_T_F },
+	{ BER_BVC( "discover" ),	LDAP_BACK_F_T_F_DISCOVER },
+	{ BER_BVC( "no" ),		LDAP_BACK_F_NONE },
+	{ BER_BVNULL,			0 }
+};
+
+static slap_verbmasks cancel_mode[] = {
+	{ BER_BVC( "ignore" ),		LDAP_BACK_F_CANCEL_IGNORE },
+	{ BER_BVC( "exop" ),		LDAP_BACK_F_CANCEL_EXOP },
+	{ BER_BVC( "exop-discover" ),	LDAP_BACK_F_CANCEL_EXOP_DISCOVER },
+	{ BER_BVC( "abandon" ),		LDAP_BACK_F_CANCEL_ABANDON },
+	{ BER_BVNULL,			0 }
+};
+
+static slap_verbmasks onerr_mode[] = {
+	{ BER_BVC( "stop" ),		META_BACK_F_ONERR_STOP },
+	{ BER_BVC( "report" ),	META_BACK_F_ONERR_REPORT },
+	{ BER_BVC( "continue" ),		LDAP_BACK_F_NONE },
+	{ BER_BVNULL,			0 }
+};
+
+/* see enum in slap.h */
+static slap_cf_aux_table timeout_table[] = {
+	{ BER_BVC("bind="),	SLAP_OP_BIND * sizeof( time_t ),	'u', 0, NULL },
+	/* unbind makes no sense */
+	{ BER_BVC("add="),	SLAP_OP_ADD * sizeof( time_t ),		'u', 0, NULL },
+	{ BER_BVC("delete="),	SLAP_OP_DELETE * sizeof( time_t ),	'u', 0, NULL },
+	{ BER_BVC("modrdn="),	SLAP_OP_MODRDN * sizeof( time_t ),	'u', 0, NULL },
+	{ BER_BVC("modify="),	SLAP_OP_MODIFY * sizeof( time_t ),	'u', 0, NULL },
+	{ BER_BVC("compare="),	SLAP_OP_COMPARE * sizeof( time_t ),	'u', 0, NULL },
+	{ BER_BVC("search="),	SLAP_OP_SEARCH * sizeof( time_t ),	'u', 0, NULL },
+	/* abandon makes little sense */
+#if 0	/* not implemented yet */
+	{ BER_BVC("extended="),	SLAP_OP_EXTENDED * sizeof( time_t ),	'u', 0, NULL },
+#endif
+	{ BER_BVNULL, 0, 0, 0, NULL }
+};
+
+static int
+asyncmeta_cf_cleanup( ConfigArgs *c )
+{
+	a_metainfo_t	*mi = ( a_metainfo_t * )c->be->be_private;
+	a_metatarget_t	*mt = c->ca_private;
+
+	return asyncmeta_target_finish( mi, mt, c->log, c->cr_msg, sizeof( c->cr_msg ));
+}
+
+static int
+asyncmeta_back_cf_gen( ConfigArgs *c )
+{
+	a_metainfo_t	*mi = ( a_metainfo_t * )c->be->be_private;
+	a_metatarget_t	*mt = NULL;
+	a_metacommon_t	*mc = NULL;
+
+	int i, rc = 0;
+
+	assert( mi != NULL );
+
+	if ( c->op == SLAP_CONFIG_EMIT || c->op == LDAP_MOD_DELETE ) {
+		if ( !mi )
+			return 1;
+
+		if ( c->table == Cft_Database ) {
+			mt = NULL;
+			mc = &mi->mi_mc;
+		} else {
+			mt = c->ca_private;
+			mc = &mt->mt_mc;
+		}
+	}
+
+	if ( c->op == SLAP_CONFIG_EMIT ) {
+		struct berval bv = BER_BVNULL;
+
+		switch( c->type ) {
+		/* Base attrs */
+
+		case LDAP_BACK_CFG_DNCACHE_TTL:
+			if ( mi->mi_cache.ttl == META_DNCACHE_DISABLED ) {
+				return 1;
+			} else if ( mi->mi_cache.ttl == META_DNCACHE_FOREVER ) {
+				BER_BVSTR( &bv, "forever" );
+			} else {
+				char	buf[ SLAP_TEXT_BUFLEN ];
+
+				lutil_unparse_time( buf, sizeof( buf ), mi->mi_cache.ttl );
+				ber_str2bv( buf, 0, 0, &bv );
+			}
+			value_add_one( &c->rvalue_vals, &bv );
+			break;
+
+		case LDAP_BACK_CFG_IDLE_TIMEOUT:
+			if ( mi->mi_idle_timeout == 0 ) {
+				return 1;
+			} else {
+				char	buf[ SLAP_TEXT_BUFLEN ];
+
+				lutil_unparse_time( buf, sizeof( buf ), mi->mi_idle_timeout );
+				ber_str2bv( buf, 0, 0, &bv );
+				value_add_one( &c->rvalue_vals, &bv );
+			}
+			break;
+
+		case LDAP_BACK_CFG_ONERR:
+			enum_to_verb( onerr_mode, mi->mi_flags & META_BACK_F_ONERR_MASK, &bv );
+			if ( BER_BVISNULL( &bv )) {
+				rc = 1;
+			} else {
+				value_add_one( &c->rvalue_vals, &bv );
+			}
+			break;
+
+		case LDAP_BACK_CFG_PSEUDOROOT_BIND_DEFER:
+			c->value_int = META_BACK_DEFER_ROOTDN_BIND( mi );
+			break;
+
+		case LDAP_BACK_CFG_CONNPOOLMAX:
+			c->value_int = mi->mi_conn_priv_max;
+			break;
+
+		/* common attrs */
+		case LDAP_BACK_CFG_BIND_TIMEOUT:
+			if ( mc->mc_bind_timeout.tv_sec == 0 &&
+				mc->mc_bind_timeout.tv_usec == 0 ) {
+				return 1;
+			} else {
+				c->value_ulong = mc->mc_bind_timeout.tv_sec * 1000000UL +
+					mc->mc_bind_timeout.tv_usec;
+			}
+			break;
+
+		case LDAP_BACK_CFG_CANCEL: {
+			slap_mask_t	mask = LDAP_BACK_F_CANCEL_MASK2;
+
+			if ( mt && META_BACK_TGT_CANCEL_DISCOVER( mt ) ) {
+				mask &= ~LDAP_BACK_F_CANCEL_EXOP;
+			}
+			enum_to_verb( cancel_mode, (mc->mc_flags & mask), &bv );
+			if ( BER_BVISNULL( &bv ) ) {
+				/* there's something wrong... */
+				assert( 0 );
+				rc = 1;
+
+			} else {
+				value_add_one( &c->rvalue_vals, &bv );
+			}
+			} break;
+
+		case LDAP_BACK_CFG_CHASE:
+			c->value_int = META_BACK_CMN_CHASE_REFERRALS(mc);
+			break;
+
+#ifdef SLAPD_META_CLIENT_PR
+		case LDAP_BACK_CFG_CLIENT_PR:
+			if ( mc->mc_ps == META_CLIENT_PR_DISABLE ) {
+				return 1;
+			} else if ( mc->mc_ps == META_CLIENT_PR_ACCEPT_UNSOLICITED ) {
+				BER_BVSTR( &bv, "accept-unsolicited" );
+			} else {
+				bv.bv_len = snprintf( c->cr_msg, sizeof(c->cr_msg), "%d", mc->mc_ps );
+				bv.bv_val = c->cr_msg;
+			}
+			value_add_one( &c->rvalue_vals, &bv );
+			break;
+#endif /* SLAPD_META_CLIENT_PR */
+
+		case LDAP_BACK_CFG_DEFAULT_T:
+			if ( mt || mi->mi_defaulttarget == META_DEFAULT_TARGET_NONE )
+				return 1;
+			bv.bv_len = snprintf( c->cr_msg, sizeof(c->cr_msg), "%d", mi->mi_defaulttarget );
+			bv.bv_val = c->cr_msg;
+			value_add_one( &c->rvalue_vals, &bv );
+			break;
+
+		case LDAP_BACK_CFG_NETWORK_TIMEOUT:
+			if ( mc->mc_network_timeout == 0 ) {
+				return 1;
+			}
+			bv.bv_len = snprintf( c->cr_msg, sizeof(c->cr_msg), "%ld",
+				mc->mc_network_timeout );
+			bv.bv_val = c->cr_msg;
+			value_add_one( &c->rvalue_vals, &bv );
+			break;
+
+		case LDAP_BACK_CFG_NOREFS:
+			c->value_int = META_BACK_CMN_NOREFS(mc);
+			break;
+
+		case LDAP_BACK_CFG_NOUNDEFFILTER:
+			c->value_int = META_BACK_CMN_NOUNDEFFILTER(mc);
+			break;
+
+		case LDAP_BACK_CFG_NRETRIES:
+			if ( mc->mc_nretries == META_RETRY_FOREVER ) {
+				BER_BVSTR( &bv, "forever" );
+			} else if ( mc->mc_nretries == META_RETRY_NEVER ) {
+				BER_BVSTR( &bv, "never" );
+			} else {
+				bv.bv_len = snprintf( c->cr_msg, sizeof(c->cr_msg), "%d",
+					mc->mc_nretries );
+				bv.bv_val = c->cr_msg;
+			}
+			value_add_one( &c->rvalue_vals, &bv );
+			break;
+
+		case LDAP_BACK_CFG_QUARANTINE:
+			if ( !META_BACK_CMN_QUARANTINE( mc )) {
+				rc = 1;
+				break;
+			}
+			rc = mi->mi_ldap_extra->retry_info_unparse( &mc->mc_quarantine, &bv );
+			if ( rc == 0 ) {
+				ber_bvarray_add( &c->rvalue_vals, &bv );
+			}
+			break;
+
+		case LDAP_BACK_CFG_REBIND:
+			c->value_int = META_BACK_CMN_SAVECRED(mc);
+			break;
+
+		case LDAP_BACK_CFG_TIMEOUT:
+			for ( i = 0; i < SLAP_OP_LAST; i++ ) {
+				if ( mc->mc_timeout[ i ] != META_BACK_CFG_DEFAULT_OPS_TIMEOUT ) {
+					break;
+				}
+			}
+
+			if ( i == SLAP_OP_LAST ) {
+				return 1;
+			}
+
+			BER_BVZERO( &bv );
+			slap_cf_aux_table_unparse( mc->mc_timeout, &bv, timeout_table );
+
+			if ( BER_BVISNULL( &bv ) ) {
+				return 1;
+			}
+
+			for ( i = 0; isspace( (unsigned char) bv.bv_val[ i ] ); i++ )
+				/* count spaces */ ;
+
+			if ( i ) {
+				bv.bv_len -= i;
+				AC_MEMCPY( bv.bv_val, &bv.bv_val[ i ],
+					bv.bv_len + 1 );
+			}
+
+			ber_bvarray_add( &c->rvalue_vals, &bv );
+			break;
+
+		case LDAP_BACK_CFG_VERSION:
+			if ( mc->mc_version == 0 )
+				return 1;
+			c->value_int = mc->mc_version;
+			break;
+
+#ifdef SLAP_CONTROL_X_SESSION_TRACKING
+		case LDAP_BACK_CFG_ST_REQUEST:
+			c->value_int = META_BACK_CMN_ST_REQUEST( mc );
+			break;
+#endif /* SLAP_CONTROL_X_SESSION_TRACKING */
+
+		case LDAP_BACK_CFG_T_F:
+			enum_to_verb( t_f_mode, (mc->mc_flags & LDAP_BACK_F_T_F_MASK2), &bv );
+			if ( BER_BVISNULL( &bv ) ) {
+				/* there's something wrong... */
+				assert( 0 );
+				rc = 1;
+
+			} else {
+				value_add_one( &c->rvalue_vals, &bv );
+			}
+			break;
+
+		case LDAP_BACK_CFG_TLS: {
+			struct berval bc = BER_BVNULL, bv2;
+
+			if (( mc->mc_flags & LDAP_BACK_F_TLS_MASK ) == LDAP_BACK_F_NONE ) {
+				rc = 1;
+				break;
+			}
+			enum_to_verb( tls_mode, ( mc->mc_flags & LDAP_BACK_F_TLS_MASK ), &bv );
+			assert( !BER_BVISNULL( &bv ) );
+
+			if ( mt ) {
+				bindconf_tls_unparse( &mt->mt_tls, &bc );
+			}
+
+			if ( !BER_BVISEMPTY( &bc )) {
+				bv2.bv_len = bv.bv_len + bc.bv_len + 1;
+				bv2.bv_val = ch_malloc( bv2.bv_len + 1 );
+				strcpy( bv2.bv_val, bv.bv_val );
+				bv2.bv_val[bv.bv_len] = ' ';
+				strcpy( &bv2.bv_val[bv.bv_len + 1], bc.bv_val );
+				ber_memfree( bc.bv_val );
+				ber_bvarray_add( &c->rvalue_vals, &bv2 );
+			} else {
+				value_add_one( &c->rvalue_vals, &bv );
+			}
+			} break;
+
+		/* target attrs */
+		case LDAP_BACK_CFG_URI: {
+			char *p2, *p1 = strchr( mt->mt_uri, ' ' );
+			bv.bv_len = strlen( mt->mt_uri ) + 3 + mt->mt_psuffix.bv_len;
+			bv.bv_val = ch_malloc( bv.bv_len + 1 );
+			p2 = bv.bv_val;
+			*p2++ = '"';
+			if ( p1 ) {
+				p2 = lutil_strncopy( p2, mt->mt_uri, p1 - mt->mt_uri );
+			} else {
+				p2 = lutil_strcopy( p2, mt->mt_uri );
+			}
+			*p2++ = '/';
+			p2 = lutil_strcopy( p2, mt->mt_psuffix.bv_val );
+			*p2++ = '"';
+			if ( p1 ) {
+				strcpy( p2, p1 );
+			}
+			ber_bvarray_add( &c->rvalue_vals, &bv );
+			} break;
+
+		case LDAP_BACK_CFG_IDASSERT_AUTHZFROM: {
+			BerVarray	*bvp;
+			int		i;
+			struct berval	bv = BER_BVNULL;
+			char		buf[SLAP_TEXT_BUFLEN];
+
+			bvp = &mt->mt_idassert_authz;
+			if ( *bvp == NULL ) {
+				if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_AUTHZ_ALL )
+				{
+					BER_BVSTR( &bv, "*" );
+					value_add_one( &c->rvalue_vals, &bv );
+
+				} else {
+					rc = 1;
+				}
+				break;
+			}
+
+			for ( i = 0; !BER_BVISNULL( &((*bvp)[ i ]) ); i++ ) {
+				char *ptr;
+				int len = snprintf( buf, sizeof( buf ), SLAP_X_ORDERED_FMT, i );
+				bv.bv_len = ((*bvp)[ i ]).bv_len + len;
+				bv.bv_val = ber_memrealloc( bv.bv_val, bv.bv_len + 1 );
+				ptr = bv.bv_val;
+				ptr = lutil_strcopy( ptr, buf );
+				ptr = lutil_strncopy( ptr, ((*bvp)[ i ]).bv_val, ((*bvp)[ i ]).bv_len );
+				value_add_one( &c->rvalue_vals, &bv );
+			}
+			if ( bv.bv_val ) {
+				ber_memfree( bv.bv_val );
+			}
+			break;
+		}
+
+		case LDAP_BACK_CFG_IDASSERT_BIND: {
+			int		i;
+			struct berval	bc = BER_BVNULL;
+			char		*ptr;
+
+			if ( mt->mt_idassert_authmethod == LDAP_AUTH_NONE ) {
+				return 1;
+			} else {
+				ber_len_t	len;
+
+				switch ( mt->mt_idassert_mode ) {
+				case LDAP_BACK_IDASSERT_OTHERID:
+				case LDAP_BACK_IDASSERT_OTHERDN:
+					break;
+
+				default: {
+					struct berval	mode = BER_BVNULL;
+
+					enum_to_verb( idassert_mode, mt->mt_idassert_mode, &mode );
+					if ( BER_BVISNULL( &mode ) ) {
+						/* there's something wrong... */
+						assert( 0 );
+						rc = 1;
+
+					} else {
+						bv.bv_len = STRLENOF( "mode=" ) + mode.bv_len;
+						bv.bv_val = ch_malloc( bv.bv_len + 1 );
+
+						ptr = lutil_strcopy( bv.bv_val, "mode=" );
+						ptr = lutil_strcopy( ptr, mode.bv_val );
+					}
+					break;
+				}
+				}
+
+				if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) {
+					len = bv.bv_len + STRLENOF( "authz=native" );
+
+					if ( !BER_BVISEMPTY( &bv ) ) {
+						len += STRLENOF( " " );
+					}
+
+					bv.bv_val = ch_realloc( bv.bv_val, len + 1 );
+
+					ptr = &bv.bv_val[ bv.bv_len ];
+
+					if ( !BER_BVISEMPTY( &bv ) ) {
+						ptr = lutil_strcopy( ptr, " " );
+					}
+
+					(void)lutil_strcopy( ptr, "authz=native" );
+				}
+
+				len = bv.bv_len + STRLENOF( "flags=non-prescriptive,override,obsolete-encoding-workaround,proxy-authz-non-critical,dn-authzid" );
+				/* flags */
+				if ( !BER_BVISEMPTY( &bv ) ) {
+					len += STRLENOF( " " );
+				}
+
+				bv.bv_val = ch_realloc( bv.bv_val, len + 1 );
+
+				ptr = &bv.bv_val[ bv.bv_len ];
+
+				if ( !BER_BVISEMPTY( &bv ) ) {
+					ptr = lutil_strcopy( ptr, " " );
+				}
+
+				ptr = lutil_strcopy( ptr, "flags=" );
+
+				if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
+					ptr = lutil_strcopy( ptr, "prescriptive" );
+				} else {
+					ptr = lutil_strcopy( ptr, "non-prescriptive" );
+				}
+
+				if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) {
+					ptr = lutil_strcopy( ptr, ",override" );
+				}
+
+				if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OBSOLETE_PROXY_AUTHZ ) {
+					ptr = lutil_strcopy( ptr, ",obsolete-proxy-authz" );
+
+				} else if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OBSOLETE_ENCODING_WORKAROUND ) {
+					ptr = lutil_strcopy( ptr, ",obsolete-encoding-workaround" );
+				}
+
+				if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PROXYAUTHZ_CRITICAL ) {
+					ptr = lutil_strcopy( ptr, ",proxy-authz-critical" );
+
+				} else {
+					ptr = lutil_strcopy( ptr, ",proxy-authz-non-critical" );
+				}
+
+#ifdef SLAP_AUTH_DN
+				switch ( mt->mt_idassert_flags & LDAP_BACK_AUTH_DN_MASK ) {
+				case LDAP_BACK_AUTH_DN_AUTHZID:
+					ptr = lutil_strcopy( ptr, ",dn-authzid" );
+					break;
+
+				case LDAP_BACK_AUTH_DN_WHOAMI:
+					ptr = lutil_strcopy( ptr, ",dn-whoami" );
+					break;
+
+				default:
+#if 0 /* implicit */
+					ptr = lutil_strcopy( ptr, ",dn-none" );
+#endif
+					break;
+				}
+#endif
+
+				bv.bv_len = ( ptr - bv.bv_val );
+				/* end-of-flags */
+			}
+
+			bindconf_unparse( &mt->mt_idassert.si_bc, &bc );
+
+			if ( !BER_BVISNULL( &bv ) ) {
+				ber_len_t	len = bv.bv_len + bc.bv_len;
+
+				bv.bv_val = ch_realloc( bv.bv_val, len + 1 );
+
+				assert( bc.bv_val[ 0 ] == ' ' );
+
+				ptr = lutil_strcopy( &bv.bv_val[ bv.bv_len ], bc.bv_val );
+				free( bc.bv_val );
+				bv.bv_len = ptr - bv.bv_val;
+
+			} else {
+				for ( i = 0; isspace( (unsigned char) bc.bv_val[ i ] ); i++ )
+					/* count spaces */ ;
+
+				if ( i ) {
+					bc.bv_len -= i;
+					AC_MEMCPY( bc.bv_val, &bc.bv_val[ i ], bc.bv_len + 1 );
+				}
+
+				bv = bc;
+			}
+
+			ber_bvarray_add( &c->rvalue_vals, &bv );
+
+			break;
+		}
+
+		case LDAP_BACK_CFG_SUFFIXM:
+			if ( mt->mt_lsuffixm.bv_val ) {
+				struct berval bv;
+				char *ptr;
+				bv.bv_len = mt->mt_lsuffixm.bv_len + 2 + 1 + mt->mt_rsuffixm.bv_len + 2;
+				bv.bv_val = ch_malloc( bv.bv_len + 1 );
+				ptr = bv.bv_val;
+				*ptr++ = '"';
+				ptr = lutil_strcopy(ptr, mt->mt_lsuffixm.bv_val);
+				ptr = lutil_strcopy(ptr, "\" \"");
+				ptr = lutil_strcopy(ptr, mt->mt_rsuffixm.bv_val);
+				*ptr++ = '"';
+				*ptr = '\0';
+				ber_bvarray_add( &c->rvalue_vals, &bv );
+				rc = 0;
+			} else
+				rc = 1;
+			break;
+
+		case LDAP_BACK_CFG_SUBTREE_EX:
+		case LDAP_BACK_CFG_SUBTREE_IN:
+			rc = asyncmeta_subtree_unparse( c, mt );
+			break;
+
+		case LDAP_BACK_CFG_FILTER:
+			if ( mt->mt_filter == NULL ) {
+				rc = 1;
+			} else {
+				metafilter_t *mf;
+				for ( mf = mt->mt_filter; mf; mf = mf->mf_next )
+					value_add_one( &c->rvalue_vals, &mf->mf_regex_pattern );
+			}
+			break;
+		case LDAP_BACK_CFG_MAX_PENDING_OPS:
+			c->value_int = mi->mi_max_pending_ops;
+			break;
+
+		case LDAP_BACK_CFG_MAX_TARGET_CONNS:
+			c->value_int = mi->mi_max_target_conns;
+			break;
+		case LDAP_BACK_CFG_MAX_TIMEOUT_OPS:
+			c->value_int = mi->mi_max_timeout_ops;
+			break;
+
+		case LDAP_BACK_CFG_KEEPALIVE: {
+				struct berval bv;
+				char buf[AC_LINE_MAX];
+				bv.bv_len = AC_LINE_MAX;
+				bv.bv_val = &buf[0];
+				slap_keepalive_parse(&bv, &mt->mt_tls.sb_keepalive, 0, 0, 1);
+				value_add_one( &c->rvalue_vals, &bv );
+				break;
+			}
+
+		case LDAP_BACK_CFG_TCP_USER_TIMEOUT:
+			c->value_uint = mt->mt_tls.sb_tcp_user_timeout;
+			break;
+
+		default:
+			rc = 1;
+		}
+		return rc;
+	} else if ( c->op == LDAP_MOD_DELETE ) {
+		switch( c->type ) {
+		/* Base attrs */
+		case LDAP_BACK_CFG_DNCACHE_TTL:
+			mi->mi_cache.ttl = META_DNCACHE_DISABLED;
+			break;
+
+		case LDAP_BACK_CFG_IDLE_TIMEOUT:
+			mi->mi_idle_timeout = 0;
+			break;
+
+		case LDAP_BACK_CFG_ONERR:
+			mi->mi_flags &= ~META_BACK_F_ONERR_MASK;
+			break;
+
+		case LDAP_BACK_CFG_PSEUDOROOT_BIND_DEFER:
+			mi->mi_flags &= ~META_BACK_F_DEFER_ROOTDN_BIND;
+			break;
+
+		case LDAP_BACK_CFG_CONNPOOLMAX:
+			mi->mi_conn_priv_max = LDAP_BACK_CONN_PRIV_MIN;
+			break;
+
+		/* common attrs */
+		case LDAP_BACK_CFG_BIND_TIMEOUT:
+			mc->mc_bind_timeout.tv_sec = 0;
+			mc->mc_bind_timeout.tv_usec = 0;
+			break;
+
+		case LDAP_BACK_CFG_CANCEL:
+			mc->mc_flags &= ~LDAP_BACK_F_CANCEL_MASK2;
+			break;
+
+		case LDAP_BACK_CFG_CHASE:
+			mc->mc_flags &= ~LDAP_BACK_F_CHASE_REFERRALS;
+			break;
+
+#ifdef SLAPD_META_CLIENT_PR
+		case LDAP_BACK_CFG_CLIENT_PR:
+			mc->mc_ps = META_CLIENT_PR_DISABLE;
+			break;
+#endif /* SLAPD_META_CLIENT_PR */
+
+		case LDAP_BACK_CFG_DEFAULT_T:
+			mi->mi_defaulttarget = META_DEFAULT_TARGET_NONE;
+			break;
+
+		case LDAP_BACK_CFG_NETWORK_TIMEOUT:
+			mc->mc_network_timeout = 0;
+			break;
+
+		case LDAP_BACK_CFG_NOREFS:
+			mc->mc_flags &= ~LDAP_BACK_F_NOREFS;
+			break;
+
+		case LDAP_BACK_CFG_NOUNDEFFILTER:
+			mc->mc_flags &= ~LDAP_BACK_F_NOUNDEFFILTER;
+			break;
+
+		case LDAP_BACK_CFG_NRETRIES:
+			mc->mc_nretries = META_RETRY_DEFAULT;
+			break;
+
+		case LDAP_BACK_CFG_QUARANTINE:
+			if ( META_BACK_CMN_QUARANTINE( mc )) {
+				mi->mi_ldap_extra->retry_info_destroy( &mc->mc_quarantine );
+				mc->mc_flags &= ~LDAP_BACK_F_QUARANTINE;
+				if ( mc == &mt->mt_mc ) {
+					ldap_pvt_thread_mutex_destroy( &mt->mt_quarantine_mutex );
+					mt->mt_isquarantined = 0;
+				}
+			}
+			break;
+
+		case LDAP_BACK_CFG_REBIND:
+			mc->mc_flags &= ~LDAP_BACK_F_SAVECRED;
+			break;
+
+		case LDAP_BACK_CFG_TIMEOUT:
+			for ( i = 0; i < SLAP_OP_LAST; i++ ) {
+				mc->mc_timeout[ i ] = 0;
+			}
+			break;
+
+		case LDAP_BACK_CFG_VERSION:
+			mc->mc_version = 0;
+			break;
+
+#ifdef SLAP_CONTROL_X_SESSION_TRACKING
+		case LDAP_BACK_CFG_ST_REQUEST:
+			mc->mc_flags &= ~LDAP_BACK_F_ST_REQUEST;
+			break;
+#endif /* SLAP_CONTROL_X_SESSION_TRACKING */
+
+		case LDAP_BACK_CFG_T_F:
+			mc->mc_flags &= ~LDAP_BACK_F_T_F_MASK2;
+			break;
+
+		case LDAP_BACK_CFG_TLS:
+			mc->mc_flags &= ~LDAP_BACK_F_TLS_MASK;
+			if ( mt )
+				bindconf_free( &mt->mt_tls );
+			break;
+
+		/* target attrs */
+		case LDAP_BACK_CFG_URI:
+			if ( mt->mt_uri ) {
+				ch_free( mt->mt_uri );
+				mt->mt_uri = NULL;
+			}
+			/* FIXME: should have a way to close all cached
+			 * connections associated with this target.
+			 */
+			break;
+
+		case LDAP_BACK_CFG_IDASSERT_AUTHZFROM: {
+			BerVarray *bvp;
+
+			bvp = &mt->mt_idassert_authz;
+			if ( c->valx < 0 ) {
+				if ( *bvp != NULL ) {
+					ber_bvarray_free( *bvp );
+					*bvp = NULL;
+				}
+
+			} else {
+				if ( *bvp == NULL ) {
+					rc = 1;
+					break;
+				}
+
+				for ( i = 0; !BER_BVISNULL( &((*bvp)[ i ]) ); i++ )
+					;
+
+				if ( i >= c->valx ) {
+					rc = 1;
+					break;
+				}
+				ber_memfree( ((*bvp)[ c->valx ]).bv_val );
+				for ( i = c->valx; !BER_BVISNULL( &((*bvp)[ i + 1 ]) ); i++ ) {
+					(*bvp)[ i ] = (*bvp)[ i + 1 ];
+				}
+				BER_BVZERO( &((*bvp)[ i ]) );
+			}
+			} break;
+
+		case LDAP_BACK_CFG_IDASSERT_BIND:
+			bindconf_free( &mt->mt_idassert.si_bc );
+			memset( &mt->mt_idassert, 0, sizeof( slap_idassert_t ) );
+			break;
+
+		case LDAP_BACK_CFG_SUFFIXM:
+			if ( mt->mt_lsuffixm.bv_val ) {
+				ch_free( mt->mt_lsuffixm.bv_val );
+				ch_free( mt->mt_rsuffixm.bv_val );
+				BER_BVZERO( &mt->mt_lsuffixm );
+				BER_BVZERO( &mt->mt_rsuffixm );
+			}
+			break;
+
+		case LDAP_BACK_CFG_SUBTREE_EX:
+		case LDAP_BACK_CFG_SUBTREE_IN:
+			/* can only be one of exclude or include */
+			if (( c->type == LDAP_BACK_CFG_SUBTREE_EX ) ^ mt->mt_subtree_exclude ) {
+				rc = 1;
+				break;
+			}
+			if ( c->valx < 0 ) {
+				asyncmeta_subtree_destroy( mt->mt_subtree );
+				mt->mt_subtree = NULL;
+			} else {
+				a_metasubtree_t *ms, **mprev;
+				for (i=0, mprev = &mt->mt_subtree, ms = *mprev; ms; ms = *mprev) {
+					if ( i == c->valx ) {
+						*mprev = ms->ms_next;
+						asyncmeta_subtree_free( ms );
+						break;
+					}
+					i++;
+					mprev = &ms->ms_next;
+				}
+				if ( i != c->valx )
+					rc = 1;
+			}
+			break;
+
+		case LDAP_BACK_CFG_FILTER:
+			if ( c->valx < 0 ) {
+				asyncmeta_filter_destroy( mt->mt_filter );
+				mt->mt_filter = NULL;
+			} else {
+				metafilter_t *mf, **mprev;
+				for (i=0, mprev = &mt->mt_filter, mf = *mprev; mf; mf = *mprev) {
+					if ( i == c->valx ) {
+						*mprev = mf->mf_next;
+						asyncmeta_filter_free( mf );
+						break;
+					}
+					i++;
+					mprev = &mf->mf_next;
+				}
+				if ( i != c->valx )
+					rc = 1;
+			}
+			break;
+		case LDAP_BACK_CFG_MAX_PENDING_OPS:
+			mi->mi_max_pending_ops = 0;
+			break;
+
+		case LDAP_BACK_CFG_MAX_TARGET_CONNS:
+			mi->mi_max_target_conns = 0;
+			break;
+
+		case LDAP_BACK_CFG_MAX_TIMEOUT_OPS:
+			mi->mi_max_timeout_ops = 0;
+			break;
+
+		case LDAP_BACK_CFG_KEEPALIVE:
+			mt->mt_tls.sb_keepalive.sk_idle = 0;
+			mt->mt_tls.sb_keepalive.sk_probes = 0;
+			mt->mt_tls.sb_keepalive.sk_interval = 0;
+			break;
+
+		case LDAP_BACK_CFG_TCP_USER_TIMEOUT:
+			mt->mt_tls.sb_tcp_user_timeout = 0;
+			break;
+
+		default:
+			rc = 1;
+			break;
+		}
+
+		return rc;
+	}
+
+	if ( c->op == SLAP_CONFIG_ADD ) {
+		if ( c->type >= LDAP_BACK_CFG_LAST_BASE ) {
+			/* exclude CFG_URI from this check */
+			if ( c->type > LDAP_BACK_CFG_LAST_BOTH ) {
+				if ( !mi->mi_ntargets ) {
+					snprintf( c->cr_msg, sizeof( c->cr_msg ),
+						"need \"uri\" directive first" );
+					Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+					return 1;
+				}
+			}
+			if ( mi->mi_ntargets ) {
+				mt = mi->mi_targets[ mi->mi_ntargets-1 ];
+				mc = &mt->mt_mc;
+			} else {
+				mt = NULL;
+				mc = &mi->mi_mc;
+			}
+		}
+	} else {
+		if ( c->table == Cft_Database ) {
+			mt = NULL;
+			mc = &mi->mi_mc;
+		} else {
+			mt = c->ca_private;
+			if ( mt )
+				mc = &mt->mt_mc;
+			else
+				mc = NULL;
+		}
+	}
+
+	switch( c->type ) {
+	case LDAP_BACK_CFG_URI: {
+		LDAPURLDesc 	*ludp;
+		struct berval	dn;
+		int		j;
+
+		char		**uris = NULL;
+
+		if ( c->be->be_nsuffix == NULL ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"the suffix must be defined before any target" );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+
+		i = mi->mi_ntargets++;
+
+		mi->mi_targets = ( a_metatarget_t ** )ch_realloc( mi->mi_targets,
+			sizeof( a_metatarget_t * ) * mi->mi_ntargets );
+		if ( mi->mi_targets == NULL ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"out of memory while storing server name"
+				" in \"%s <protocol>://<server>[:port]/<naming context>\"",
+				c->argv[0] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+
+		if ( asyncmeta_back_new_target( &mi->mi_targets[ i ] ) != 0 ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"unable to init server"
+				" in \"%s <protocol>://<server>[:port]/<naming context>\"",
+				c->argv[0] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+
+		mt = mi->mi_targets[ i ];
+
+		mt->mt_rebind_f = mi->mi_rebind_f;
+		mt->mt_urllist_f = mi->mi_urllist_f;
+		mt->mt_urllist_p = mt;
+
+		if ( META_BACK_QUARANTINE( mi ) ) {
+			ldap_pvt_thread_mutex_init( &mt->mt_quarantine_mutex );
+		}
+		mt->mt_mc = mi->mi_mc;
+
+		for ( j = 1; j < c->argc; j++ ) {
+			char	**tmpuris = ldap_str2charray( c->argv[ j ], "\t" );
+
+			if ( tmpuris == NULL ) {
+				snprintf( c->cr_msg, sizeof( c->cr_msg ),
+					"unable to parse URIs #%d"
+					" in \"%s <protocol>://<server>[:port]/<naming context>\"",
+					j-1, c->argv[0] );
+				Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+				return 1;
+			}
+
+			if ( j == 1 ) {
+				uris = tmpuris;
+
+			} else {
+				ldap_charray_merge( &uris, tmpuris );
+				ldap_charray_free( tmpuris );
+			}
+		}
+
+		for ( j = 0; uris[ j ] != NULL; j++ ) {
+			char *tmpuri = NULL;
+
+			/*
+			 * uri MUST be legal!
+			 */
+			if ( ldap_url_parselist_ext( &ludp, uris[ j ], "\t",
+					LDAP_PVT_URL_PARSE_NONE ) != LDAP_SUCCESS
+				|| ludp->lud_next != NULL )
+			{
+				snprintf( c->cr_msg, sizeof( c->cr_msg ),
+					"unable to parse URI #%d"
+					" in \"%s <protocol>://<server>[:port]/<naming context>\"",
+					j-1, c->argv[0] );
+				Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+				ldap_charray_free( uris );
+				return 1;
+			}
+
+			if ( j == 0 ) {
+
+				/*
+				 * uri MUST have the <dn> part!
+				 */
+				if ( ludp->lud_dn == NULL ) {
+					snprintf( c->cr_msg, sizeof( c->cr_msg ),
+						"missing <naming context> "
+						" in \"%s <protocol>://<server>[:port]/<naming context>\"",
+						c->argv[0] );
+					Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+					ldap_free_urllist( ludp );
+					ldap_charray_free( uris );
+					return 1;
+				}
+
+				/*
+				 * copies and stores uri and suffix
+				 */
+				ber_str2bv( ludp->lud_dn, 0, 0, &dn );
+				rc = dnPrettyNormal( NULL, &dn, &mt->mt_psuffix,
+					&mt->mt_nsuffix, NULL );
+				if ( rc != LDAP_SUCCESS ) {
+					snprintf( c->cr_msg, sizeof( c->cr_msg ),
+						"target DN is invalid \"%s\"",
+						c->argv[1] );
+					Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+					ldap_free_urllist( ludp );
+					ldap_charray_free( uris );
+					return( 1 );
+				}
+
+				ludp->lud_dn[ 0 ] = '\0';
+
+				switch ( ludp->lud_scope ) {
+				case LDAP_SCOPE_DEFAULT:
+					mt->mt_scope = LDAP_SCOPE_SUBTREE;
+					break;
+
+				case LDAP_SCOPE_SUBTREE:
+				case LDAP_SCOPE_SUBORDINATE:
+					mt->mt_scope = ludp->lud_scope;
+					break;
+
+				default:
+					snprintf( c->cr_msg, sizeof( c->cr_msg ),
+						"invalid scope for target \"%s\"",
+						c->argv[1] );
+					Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+					ldap_free_urllist( ludp );
+					ldap_charray_free( uris );
+					return( 1 );
+				}
+
+			} else {
+				/* check all, to apply the scope check on the first one */
+				if ( ludp->lud_dn != NULL && ludp->lud_dn[ 0 ] != '\0' ) {
+					snprintf( c->cr_msg, sizeof( c->cr_msg ),
+						"multiple URIs must have no DN part" );
+					Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+					ldap_free_urllist( ludp );
+					ldap_charray_free( uris );
+					return( 1 );
+
+				}
+			}
+
+			tmpuri = ldap_url_list2urls( ludp );
+			ldap_free_urllist( ludp );
+			if ( tmpuri == NULL ) {
+				snprintf( c->cr_msg, sizeof( c->cr_msg ), "no memory?" );
+				Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+				ldap_charray_free( uris );
+				return( 1 );
+			}
+			ldap_memfree( uris[ j ] );
+			uris[ j ] = tmpuri;
+		}
+
+		mt->mt_uri = ldap_charray2str( uris, " " );
+		ldap_charray_free( uris );
+		if ( mt->mt_uri == NULL) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ), "no memory?" );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return( 1 );
+		}
+
+		/*
+		 * uri MUST be a branch of suffix!
+		 */
+		for ( j = 0; !BER_BVISNULL( &c->be->be_nsuffix[ j ] ); j++ ) {
+			if ( dnIsSuffix( &mt->mt_nsuffix, &c->be->be_nsuffix[ j ] ) ) {
+				break;
+			}
+		}
+
+		if ( BER_BVISNULL( &c->be->be_nsuffix[ j ] ) ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"<naming context> of URI must be within the naming context of this database." );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+		c->ca_private = mt;
+		config_push_cleanup( c, asyncmeta_cf_cleanup );
+	} break;
+	case LDAP_BACK_CFG_SUBTREE_EX:
+	case LDAP_BACK_CFG_SUBTREE_IN:
+	/* subtree-exclude */
+		if ( asyncmeta_subtree_config( mt, c )) {
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+		break;
+
+	case LDAP_BACK_CFG_FILTER: {
+		metafilter_t *mf, **m2;
+		mf = ch_malloc( sizeof( metafilter_t ));
+		rc = regcomp( &mf->mf_regex, c->argv[1], REG_EXTENDED );
+		if ( rc ) {
+			char regerr[ SLAP_TEXT_BUFLEN ];
+			regerror( rc, &mf->mf_regex, regerr, sizeof(regerr) );
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"regular expression \"%s\" bad because of %s",
+				c->argv[1], regerr );
+			ch_free( mf );
+			return 1;
+		}
+		ber_str2bv( c->argv[1], 0, 1, &mf->mf_regex_pattern );
+		for ( m2 = &mt->mt_filter; *m2; m2 = &(*m2)->mf_next )
+			;
+		*m2 = mf;
+	} break;
+	case LDAP_BACK_CFG_MAX_PENDING_OPS:
+		if (c->value_int < 0) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				  "max-pending-ops invalid value %d",
+				  c->value_int);
+			return 1;
+		}
+		mi->mi_max_pending_ops = c->value_int;
+		break;
+	case LDAP_BACK_CFG_MAX_TARGET_CONNS:
+	{
+		if (c->value_int < 0) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				  "max-target-conns invalid value %d",
+				  c->value_int);
+			return 1;
+		}
+		mi->mi_max_target_conns = c->value_int;
+	}
+		break;
+	case LDAP_BACK_CFG_MAX_TIMEOUT_OPS:
+		if (c->value_int < 0) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				  "max-timeout-ops invalid value %d",
+				  c->value_int);
+			return 1;
+		}
+		mi->mi_max_timeout_ops = c->value_int;
+		break;
+
+	case LDAP_BACK_CFG_DEFAULT_T:
+	/* default target directive */
+		i = mi->mi_ntargets - 1;
+
+		if ( c->argc == 1 ) {
+			if ( i < 0 ) {
+				snprintf( c->cr_msg, sizeof( c->cr_msg ),
+					"\"%s\" alone must be inside a \"uri\" directive",
+					c->argv[0] );
+				Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+				return 1;
+			}
+			mi->mi_defaulttarget = i;
+
+		} else {
+			if ( strcasecmp( c->argv[ 1 ], "none" ) == 0 ) {
+				if ( i >= 0 ) {
+					snprintf( c->cr_msg, sizeof( c->cr_msg ),
+						"\"%s none\" should go before uri definitions",
+						c->argv[0] );
+					Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+				}
+				mi->mi_defaulttarget = META_DEFAULT_TARGET_NONE;
+
+			} else {
+
+				if ( lutil_atoi( &mi->mi_defaulttarget, c->argv[ 1 ] ) != 0
+					|| mi->mi_defaulttarget < 0
+					|| mi->mi_defaulttarget >= i - 1 )
+				{
+					snprintf( c->cr_msg, sizeof( c->cr_msg ),
+						"illegal target number %d",
+						mi->mi_defaulttarget );
+					Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+					return 1;
+				}
+			}
+		}
+		break;
+
+	case LDAP_BACK_CFG_DNCACHE_TTL:
+	/* ttl of dn cache */
+		if ( strcasecmp( c->argv[ 1 ], "forever" ) == 0 ) {
+			mi->mi_cache.ttl = META_DNCACHE_FOREVER;
+
+		} else if ( strcasecmp( c->argv[ 1 ], "disabled" ) == 0 ) {
+			mi->mi_cache.ttl = META_DNCACHE_DISABLED;
+
+		} else {
+			unsigned long	t;
+
+			if ( lutil_parse_time( c->argv[ 1 ], &t ) != 0 ) {
+				snprintf( c->cr_msg, sizeof( c->cr_msg ),
+					"unable to parse dncache ttl \"%s\"",
+					c->argv[ 1 ] );
+				Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+				return 1;
+			}
+			mi->mi_cache.ttl = (time_t)t;
+		}
+		break;
+
+	case LDAP_BACK_CFG_NETWORK_TIMEOUT: {
+	/* network timeout when connecting to ldap servers */
+		unsigned long t;
+
+		if ( lutil_parse_time( c->argv[ 1 ], &t ) ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"unable to parse network timeout \"%s\"",
+				c->argv[ 1 ] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+		mc->mc_network_timeout = (time_t)t;
+		} break;
+
+	case LDAP_BACK_CFG_IDLE_TIMEOUT: {
+	/* idle timeout when connecting to ldap servers */
+		unsigned long	t;
+
+		if ( lutil_parse_time( c->argv[ 1 ], &t ) ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"unable to parse idle timeout \"%s\"",
+				c->argv[ 1 ] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+
+		}
+		mi->mi_idle_timeout = (time_t)t;
+		} break;
+
+	case LDAP_BACK_CFG_BIND_TIMEOUT:
+	/* bind timeout when connecting to ldap servers */
+		mc->mc_bind_timeout.tv_sec = c->value_ulong/1000000;
+		mc->mc_bind_timeout.tv_usec = c->value_ulong%1000000;
+		break;
+
+	case LDAP_BACK_CFG_REBIND:
+	/* save bind creds for referral rebinds? */
+		if ( c->argc == 1 || c->value_int ) {
+			mc->mc_flags |= LDAP_BACK_F_SAVECRED;
+		} else {
+			mc->mc_flags &= ~LDAP_BACK_F_SAVECRED;
+		}
+		break;
+
+	case LDAP_BACK_CFG_CHASE:
+		if ( c->argc == 1 || c->value_int ) {
+			mc->mc_flags |= LDAP_BACK_F_CHASE_REFERRALS;
+		} else {
+			mc->mc_flags &= ~LDAP_BACK_F_CHASE_REFERRALS;
+		}
+		break;
+
+	case LDAP_BACK_CFG_TLS:
+		i = verb_to_mask( c->argv[1], tls_mode );
+		if ( BER_BVISNULL( &tls_mode[i].word ) ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"%s unknown argument \"%s\"",
+				c->argv[0], c->argv[1] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+		mc->mc_flags &= ~LDAP_BACK_F_TLS_MASK;
+		mc->mc_flags |= tls_mode[i].mask;
+
+		if ( c->argc > 2 ) {
+			if ( c->op == SLAP_CONFIG_ADD && mi->mi_ntargets == 0 ) {
+				snprintf( c->cr_msg, sizeof( c->cr_msg ),
+					"need \"uri\" directive first" );
+				Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+				return 1;
+			}
+
+			for ( i = 2; i < c->argc; i++ ) {
+				if ( bindconf_tls_parse( c->argv[i], &mt->mt_tls ))
+					return 1;
+			}
+			bindconf_tls_defaults( &mt->mt_tls );
+		}
+		break;
+
+	case LDAP_BACK_CFG_T_F:
+		i = verb_to_mask( c->argv[1], t_f_mode );
+		if ( BER_BVISNULL( &t_f_mode[i].word ) ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"%s unknown argument \"%s\"",
+				c->argv[0], c->argv[1] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+		mc->mc_flags &= ~LDAP_BACK_F_T_F_MASK2;
+		mc->mc_flags |= t_f_mode[i].mask;
+		break;
+
+	case LDAP_BACK_CFG_ONERR:
+	/* onerr? */
+		i = verb_to_mask( c->argv[1], onerr_mode );
+		if ( BER_BVISNULL( &onerr_mode[i].word ) ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"%s unknown argument \"%s\"",
+				c->argv[0], c->argv[1] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+		mi->mi_flags &= ~META_BACK_F_ONERR_MASK;
+		mi->mi_flags |= onerr_mode[i].mask;
+		break;
+
+	case LDAP_BACK_CFG_PSEUDOROOT_BIND_DEFER:
+	/* bind-defer? */
+		if ( c->argc == 1 || c->value_int ) {
+			mi->mi_flags |= META_BACK_F_DEFER_ROOTDN_BIND;
+		} else {
+			mi->mi_flags &= ~META_BACK_F_DEFER_ROOTDN_BIND;
+		}
+		break;
+
+	case LDAP_BACK_CFG_CONNPOOLMAX:
+	/* privileged connections pool max size ? */
+		if ( mi->mi_ntargets > 0 ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"\"%s\" must appear before target definitions",
+				c->argv[0] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return( 1 );
+		}
+
+		if ( c->value_int < LDAP_BACK_CONN_PRIV_MIN
+			|| c->value_int > LDAP_BACK_CONN_PRIV_MAX )
+		{
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"invalid max size " "of privileged "
+				"connections pool \"%s\" "
+				"in \"conn-pool-max <n> "
+				"(must be between %d and %d)\"",
+				c->argv[ 1 ],
+				LDAP_BACK_CONN_PRIV_MIN,
+				LDAP_BACK_CONN_PRIV_MAX );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+		mi->mi_conn_priv_max = c->value_int;
+		break;
+
+	case LDAP_BACK_CFG_CANCEL:
+		i = verb_to_mask( c->argv[1], cancel_mode );
+		if ( BER_BVISNULL( &cancel_mode[i].word ) ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"%s unknown argument \"%s\"",
+				c->argv[0], c->argv[1] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+		mc->mc_flags &= ~LDAP_BACK_F_CANCEL_MASK2;
+		mc->mc_flags |= cancel_mode[i].mask;
+		break;
+
+	case LDAP_BACK_CFG_TIMEOUT:
+		for ( i = 1; i < c->argc; i++ ) {
+			if ( isdigit( (unsigned char) c->argv[ i ][ 0 ] ) ) {
+				int		j;
+				unsigned	u;
+
+				if ( lutil_atoux( &u, c->argv[ i ], 0 ) != 0 ) {
+					snprintf( c->cr_msg, sizeof( c->cr_msg),
+						"unable to parse timeout \"%s\"",
+						c->argv[ i ] );
+					Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+					return 1;
+				}
+
+				for ( j = 0; j < SLAP_OP_LAST; j++ ) {
+					mc->mc_timeout[ j ] = u;
+				}
+
+				continue;
+			}
+
+			if ( slap_cf_aux_table_parse( c->argv[ i ], mc->mc_timeout, timeout_table, "slapd-meta timeout" ) ) {
+				snprintf( c->cr_msg, sizeof( c->cr_msg),
+					"unable to parse timeout \"%s\"",
+					c->argv[ i ] );
+				Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+				return 1;
+			}
+		}
+		break;
+
+	case LDAP_BACK_CFG_IDASSERT_BIND:
+	/* idassert-bind */
+		rc = mi->mi_ldap_extra->idassert_parse( c, &mt->mt_idassert );
+		break;
+
+	case LDAP_BACK_CFG_IDASSERT_AUTHZFROM:
+	/* idassert-authzFrom */
+		rc = mi->mi_ldap_extra->idassert_authzfrom_parse( c, &mt->mt_idassert );
+		break;
+
+	case LDAP_BACK_CFG_QUARANTINE:
+	/* quarantine */
+		if ( META_BACK_CMN_QUARANTINE( mc ) )
+		{
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"quarantine already defined" );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+
+		if ( mt ) {
+			mc->mc_quarantine.ri_interval = NULL;
+			mc->mc_quarantine.ri_num = NULL;
+			if ( !META_BACK_QUARANTINE( mi ) ) {
+				ldap_pvt_thread_mutex_init( &mt->mt_quarantine_mutex );
+			}
+		}
+
+		if ( mi->mi_ldap_extra->retry_info_parse( c->argv[ 1 ], &mc->mc_quarantine, c->cr_msg, sizeof( c->cr_msg ) ) ) {
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+
+		mc->mc_flags |= LDAP_BACK_F_QUARANTINE;
+		break;
+
+#ifdef SLAP_CONTROL_X_SESSION_TRACKING
+	case LDAP_BACK_CFG_ST_REQUEST:
+	/* session tracking request */
+		if ( c->value_int ) {
+			mc->mc_flags |= LDAP_BACK_F_ST_REQUEST;
+		} else {
+			mc->mc_flags &= ~LDAP_BACK_F_ST_REQUEST;
+		}
+		break;
+#endif /* SLAP_CONTROL_X_SESSION_TRACKING */
+
+	case LDAP_BACK_CFG_SUFFIXM:
+		rc = asyncmeta_suffixm_config( c, c->argc, c->argv, mt );
+		break;
+
+	case LDAP_BACK_CFG_NRETRIES: {
+		int		nretries = META_RETRY_UNDEFINED;
+
+		if ( strcasecmp( c->argv[ 1 ], "forever" ) == 0 ) {
+			nretries = META_RETRY_FOREVER;
+
+		} else if ( strcasecmp( c->argv[ 1 ], "never" ) == 0 ) {
+			nretries = META_RETRY_NEVER;
+
+		} else {
+			if ( lutil_atoi( &nretries, c->argv[ 1 ] ) != 0 ) {
+				snprintf( c->cr_msg, sizeof( c->cr_msg ),
+					"unable to parse nretries {never|forever|<retries>}: \"%s\"",
+					c->argv[ 1 ] );
+				Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+				return 1;
+			}
+		}
+
+		mc->mc_nretries = nretries;
+		} break;
+
+	case LDAP_BACK_CFG_VERSION:
+		if ( c->value_int != 0 && ( c->value_int < LDAP_VERSION_MIN || c->value_int > LDAP_VERSION_MAX ) ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"unsupported protocol version \"%s\"",
+				c->argv[ 1 ] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return 1;
+		}
+		mc->mc_version = c->value_int;
+		break;
+
+	case LDAP_BACK_CFG_NOREFS:
+	/* do not return search references */
+		if ( c->value_int ) {
+			mc->mc_flags |= LDAP_BACK_F_NOREFS;
+		} else {
+			mc->mc_flags &= ~LDAP_BACK_F_NOREFS;
+		}
+		break;
+
+	case LDAP_BACK_CFG_NOUNDEFFILTER:
+	/* do not propagate undefined search filters */
+		if ( c->value_int ) {
+			mc->mc_flags |= LDAP_BACK_F_NOUNDEFFILTER;
+		} else {
+			mc->mc_flags &= ~LDAP_BACK_F_NOUNDEFFILTER;
+		}
+		break;
+
+#ifdef SLAPD_META_CLIENT_PR
+	case LDAP_BACK_CFG_CLIENT_PR:
+		if ( strcasecmp( c->argv[ 1 ], "accept-unsolicited" ) == 0 ) {
+			mc->mc_ps = META_CLIENT_PR_ACCEPT_UNSOLICITED;
+
+		} else if ( strcasecmp( c->argv[ 1 ], "disable" ) == 0 ) {
+			mc->mc_ps = META_CLIENT_PR_DISABLE;
+
+		} else if ( lutil_atoi( &mc->mc_ps, c->argv[ 1 ] ) || mc->mc_ps < -1 ) {
+			snprintf( c->cr_msg, sizeof( c->cr_msg ),
+				"unable to parse client-pr {accept-unsolicited|disable|<size>}: \"%s\"",
+				c->argv[ 1 ] );
+			Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+			return( 1 );
+		}
+		break;
+#endif /* SLAPD_META_CLIENT_PR */
+
+	case LDAP_BACK_CFG_KEEPALIVE: {
+		struct berval bv;
+		ber_str2bv( c->argv[1], 0, 1, &bv );
+		slap_keepalive_parse( &bv, &mt->mt_tls.sb_keepalive, 0, 0, 0 );
+		}
+		break;
+
+	case LDAP_BACK_CFG_TCP_USER_TIMEOUT:
+		mt->mt_tls.sb_tcp_user_timeout = c->value_uint;
+		break;
+
+	/* anything else */
+	default:
+		return SLAP_CONF_UNKNOWN;
+	}
+
+	return rc;
+}
+
+int
+asyncmeta_back_init_cf( BackendInfo *bi )
+{
+	int			rc;
+
+	/* Make sure we don't exceed the bits reserved for userland */
+	config_check_userland( LDAP_BACK_CFG_LAST );
+
+	bi->bi_cf_ocs = a_metaocs;
+
+	rc = config_register_schema( a_metacfg, a_metaocs );
+	if ( rc ) {
+		return rc;
+	}
+
+	return 0;
+}
-- 
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