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bconfig.c

/* bconfig.c - the config backend */
/* $OpenLDAP: pkg/ldap/servers/slapd/bconfig.c,v 1.202.2.31 2008/06/02 18:00:53 quanah Exp $ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
 *
 * Copyright 2005-2008 The OpenLDAP Foundation.
 * 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 originally developed by Howard Chu for inclusion
 * in OpenLDAP Software.
 */

#include "portable.h"

#include <stdio.h>
#include <ac/string.h>
#include <ac/ctype.h>
#include <ac/errno.h>
#include <sys/stat.h>

#include "slap.h"

#ifdef LDAP_SLAPI
#include "slapi/slapi.h"
#endif

#include <ldif.h>
#include <lutil.h>

#include "config.h"

#define     CONFIG_RDN  "cn=config"
#define     SCHEMA_RDN  "cn=schema"

static struct berval config_rdn = BER_BVC(CONFIG_RDN);
static struct berval schema_rdn = BER_BVC(SCHEMA_RDN);

extern int slap_DN_strict;    /* dn.c */

#ifdef SLAPD_MODULES
typedef struct modpath_s {
      struct modpath_s *mp_next;
      struct berval mp_path;
      BerVarray mp_loads;
} ModPaths;

static ModPaths modpaths, *modlast = &modpaths, *modcur = &modpaths;
#endif

typedef struct ConfigFile {
      struct ConfigFile *c_sibs;
      struct ConfigFile *c_kids;
      struct berval c_file;
      AttributeType *c_at_head, *c_at_tail;
      ContentRule *c_cr_head, *c_cr_tail;
      ObjectClass *c_oc_head, *c_oc_tail;
      OidMacro *c_om_head, *c_om_tail;
      BerVarray c_dseFiles;
} ConfigFile;

typedef struct {
      ConfigFile *cb_config;
      CfEntryInfo *cb_root;
      BackendDB   cb_db;      /* underlying database */
      int         cb_got_ldif;
      int         cb_use_ldif;
} CfBackInfo;

static CfBackInfo cfBackInfo;

static char *passwd_salt;
static FILE *logfile;
static char *logfileName;
#ifdef SLAP_AUTH_REWRITE
static BerVarray authz_rewrites;
#endif

static struct berval cfdir;

/* Private state */
static AttributeDescription *cfAd_backend, *cfAd_database, *cfAd_overlay,
      *cfAd_include, *cfAd_attr, *cfAd_oc, *cfAd_om;

static ConfigFile *cfn;

static Avlnode *CfOcTree;

/* System schema state */
extern AttributeType *at_sys_tail;  /* at.c */
extern ObjectClass *oc_sys_tail;    /* oc.c */
extern OidMacro *om_sys_tail; /* oidm.c */
static AttributeType *cf_at_tail;
static ObjectClass *cf_oc_tail;
static OidMacro *cf_om_tail;

static int config_add_internal( CfBackInfo *cfb, Entry *e, ConfigArgs *ca,
      SlapReply *rs, int *renumber, Operation *op );

static int config_check_schema( Operation *op, CfBackInfo *cfb );

static ConfigDriver config_fname;
static ConfigDriver config_cfdir;
static ConfigDriver config_generic;
static ConfigDriver config_search_base;
static ConfigDriver config_passwd_hash;
static ConfigDriver config_schema_dn;
static ConfigDriver config_sizelimit;
static ConfigDriver config_timelimit;
static ConfigDriver config_overlay;
static ConfigDriver config_subordinate; 
static ConfigDriver config_suffix; 
static ConfigDriver config_rootdn;
static ConfigDriver config_rootpw;
static ConfigDriver config_restrict;
static ConfigDriver config_allows;
static ConfigDriver config_disallows;
static ConfigDriver config_requires;
static ConfigDriver config_security;
static ConfigDriver config_referral;
static ConfigDriver config_loglevel;
static ConfigDriver config_updatedn;
static ConfigDriver config_updateref;
static ConfigDriver config_include;
static ConfigDriver config_obsolete;
#ifdef HAVE_TLS
static ConfigDriver config_tls_option;
static ConfigDriver config_tls_config;
#endif
extern ConfigDriver syncrepl_config;

enum {
      CFG_ACL = 1,
      CFG_BACKEND,
      CFG_DATABASE,
      CFG_TLS_RAND,
      CFG_TLS_CIPHER,
      CFG_TLS_CERT_FILE,
      CFG_TLS_CERT_KEY,
      CFG_TLS_CA_PATH,
      CFG_TLS_CA_FILE,
      CFG_TLS_DH_FILE,
      CFG_TLS_VERIFY,
      CFG_TLS_CRLCHECK,
      CFG_TLS_CRL_FILE,
      CFG_CONCUR,
      CFG_THREADS,
      CFG_SALT,
      CFG_LIMITS,
      CFG_RO,
      CFG_REWRITE,
      CFG_DEPTH,
      CFG_OID,
      CFG_OC,
      CFG_DIT,
      CFG_ATTR,
      CFG_ATOPT,
      CFG_ROOTDSE,
      CFG_LOGFILE,
      CFG_PLUGIN,
      CFG_MODLOAD,
      CFG_MODPATH,
      CFG_LASTMOD,
      CFG_AZPOLICY,
      CFG_AZREGEXP,
      CFG_SASLSECP,
      CFG_SSTR_IF_MAX,
      CFG_SSTR_IF_MIN,
      CFG_TTHREADS,
      CFG_MIRRORMODE,
      CFG_HIDDEN,
      CFG_MONITORING,
      CFG_SERVERID,
      CFG_SORTVALS,
      CFG_IX_INTLEN,

      CFG_LAST
};

typedef struct {
      char *name, *oid;
} OidRec;

static OidRec OidMacros[] = {
      /* OpenLDAProot:1.12.2 */
      { "OLcfg", "1.3.6.1.4.1.4203.1.12.2" },
      { "OLcfgAt", "OLcfg:3" },
      { "OLcfgGlAt", "OLcfgAt:0" },
      { "OLcfgBkAt", "OLcfgAt:1" },
      { "OLcfgDbAt", "OLcfgAt:2" },
      { "OLcfgOvAt", "OLcfgAt:3" },
      { "OLcfgCtAt", "OLcfgAt:4" }, /* contrib modules */
      { "OLcfgOc", "OLcfg:4" },
      { "OLcfgGlOc", "OLcfgOc:0" },
      { "OLcfgBkOc", "OLcfgOc:1" },
      { "OLcfgDbOc", "OLcfgOc:2" },
      { "OLcfgOvOc", "OLcfgOc:3" },
      { "OLcfgCtOc", "OLcfgOc:4" }, /* contrib modules */

      /* Syntaxes. We should just start using the standard names and
       * document that they are predefined and available for users
       * to reference in their own schema. Defining schema without
       * OID macros is for masochists...
       */
      { "OMsyn", "1.3.6.1.4.1.1466.115.121.1" },
      { "OMsBoolean", "OMsyn:7" },
      { "OMsDN", "OMsyn:12" },
      { "OMsDirectoryString", "OMsyn:15" },
      { "OMsIA5String", "OMsyn:26" },
      { "OMsInteger", "OMsyn:27" },
      { "OMsOID", "OMsyn:38" },
      { "OMsOctetString", "OMsyn:40" },
      { NULL, NULL }
};

/*
 * Backend/Database registry
 *
 * OLcfg{Bk|Db}{Oc|At}:0            -> common
 * OLcfg{Bk|Db}{Oc|At}:1            -> back-bdb(/back-hdb)
 * OLcfg{Bk|Db}{Oc|At}:2            -> back-ldif
 * OLcfg{Bk|Db}{Oc|At}:3            -> back-ldap
 * OLcfg{Bk|Db}{Oc|At}:4            -> back-monitor
 * OLcfg{Bk|Db}{Oc|At}:5            -> back-relay
 * OLcfg{Bk|Db}{Oc|At}:6            -> back-sql
 * OLcfg{Bk|Db}{Oc|At}:7            -> back-sock
 */

/*
 * Overlay registry
 *
 * OLcfgOv{Oc|At}:1                 -> syncprov
 * OLcfgOv{Oc|At}:2                 -> pcache
 * OLcfgOv{Oc|At}:3                 -> chain
 * OLcfgOv{Oc|At}:4                 -> accesslog
 * OLcfgOv{Oc|At}:5                 -> valsort
 * OLcfgOv{Oc|At}:7                 -> distproc
 * OLcfgOv{Oc|At}:8                 -> dynlist
 * OLcfgOv{Oc|At}:9                 -> dds
 * OLcfgOv{Oc|At}:10                -> unique
 * OLcfgOv{Oc|At}:11                -> refint
 * OLcfgOv{Oc|At}:12                -> ppolicy
 * OLcfgOv{Oc|At}:13                -> constraint
 * OLcfgOv{Oc|At}:14                -> translucent
 * OLcfgOv{Oc|At}:15                -> auditlog
 * OLcfgOv{Oc|At}:16                -> rwm
 * OLcfgOv{Oc|At}:17                -> dyngroup
 * OLcfgOv{Oc|At}:18                -> memberof
 * OLcfgOv{Oc|At}:19                -> collect
 */

/* alphabetical ordering */

static ConfigTable config_back_cf_table[] = {
      /* This attr is read-only */
      { "", "", 0, 0, 0, ARG_MAGIC,
            &config_fname, "( OLcfgGlAt:78 NAME 'olcConfigFile' "
                  "DESC 'File for slapd configuration directives' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "", "", 0, 0, 0, ARG_MAGIC,
            &config_cfdir, "( OLcfgGlAt:79 NAME 'olcConfigDir' "
                  "DESC 'Directory for slapd configuration backend' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "access", NULL, 0, 0, 0, ARG_MAY_DB|ARG_MAGIC|CFG_ACL,
            &config_generic, "( OLcfgGlAt:1 NAME 'olcAccess' "
                  "DESC 'Access Control List' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )", NULL, NULL },
      { "allows", "features", 2, 0, 5, ARG_PRE_DB|ARG_MAGIC,
            &config_allows, "( OLcfgGlAt:2 NAME 'olcAllows' "
                  "DESC 'Allowed set of deprecated features' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "argsfile", "file", 2, 2, 0, ARG_STRING,
            &slapd_args_file, "( OLcfgGlAt:3 NAME 'olcArgsFile' "
                  "DESC 'File for slapd command line options' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "attributeoptions", NULL, 0, 0, 0, ARG_MAGIC|CFG_ATOPT,
            &config_generic, "( OLcfgGlAt:5 NAME 'olcAttributeOptions' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "attribute",    "attribute", 2, 0, STRLENOF( "attribute" ),
            ARG_PAREN|ARG_MAGIC|CFG_ATTR,
            &config_generic, "( OLcfgGlAt:4 NAME 'olcAttributeTypes' "
                  "DESC 'OpenLDAP attributeTypes' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )",
                        NULL, NULL },
      { "authid-rewrite", NULL, 2, 0, STRLENOF( "authid-rewrite" ),
#ifdef SLAP_AUTH_REWRITE
            ARG_MAGIC|CFG_REWRITE|ARG_NO_INSERT, &config_generic,
#else
            ARG_IGNORED, NULL,
#endif
             "( OLcfgGlAt:6 NAME 'olcAuthIDRewrite' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )", NULL, NULL },
      { "authz-policy", "policy", 2, 2, 0, ARG_STRING|ARG_MAGIC|CFG_AZPOLICY,
            &config_generic, "( OLcfgGlAt:7 NAME 'olcAuthzPolicy' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "authz-regexp", NULL, 3, 3, 0, ARG_MAGIC|CFG_AZREGEXP|ARG_NO_INSERT,
            &config_generic, "( OLcfgGlAt:8 NAME 'olcAuthzRegexp' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )", NULL, NULL },
      { "backend", "type", 2, 2, 0, ARG_PRE_DB|ARG_MAGIC|CFG_BACKEND,
            &config_generic, "( OLcfgGlAt:9 NAME 'olcBackend' "
                  "DESC 'A type of backend' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE X-ORDERED 'SIBLINGS' )",
                        NULL, NULL },
      { "concurrency", "level", 2, 2, 0, ARG_INT|ARG_MAGIC|CFG_CONCUR,
            &config_generic, "( OLcfgGlAt:10 NAME 'olcConcurrency' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "conn_max_pending", "max", 2, 2, 0, ARG_INT,
            &slap_conn_max_pending, "( OLcfgGlAt:11 NAME 'olcConnMaxPending' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "conn_max_pending_auth", "max", 2, 2, 0, ARG_INT,
            &slap_conn_max_pending_auth, "( OLcfgGlAt:12 NAME 'olcConnMaxPendingAuth' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "database", "type", 2, 2, 0, ARG_MAGIC|CFG_DATABASE,
            &config_generic, "( OLcfgGlAt:13 NAME 'olcDatabase' "
                  "DESC 'The backend type for a database instance' "
                  "SUP olcBackend SINGLE-VALUE X-ORDERED 'SIBLINGS' )", NULL, NULL },
      { "defaultSearchBase", "dn", 2, 2, 0, ARG_PRE_BI|ARG_PRE_DB|ARG_DN|ARG_QUOTE|ARG_MAGIC,
            &config_search_base, "( OLcfgGlAt:14 NAME 'olcDefaultSearchBase' "
                  "SYNTAX OMsDN SINGLE-VALUE )", NULL, NULL },
      { "disallows", "features", 2, 0, 8, ARG_PRE_DB|ARG_MAGIC,
            &config_disallows, "( OLcfgGlAt:15 NAME 'olcDisallows' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "ditcontentrule",     NULL, 0, 0, 0, ARG_MAGIC|CFG_DIT|ARG_NO_DELETE|ARG_NO_INSERT,
            &config_generic, "( OLcfgGlAt:16 NAME 'olcDitContentRules' "
                  "DESC 'OpenLDAP DIT content rules' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )",
                  NULL, NULL },
      { "gentlehup", "on|off", 2, 2, 0,
#ifdef SIGHUP
            ARG_ON_OFF, &global_gentlehup,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:17 NAME 'olcGentleHUP' "
                  "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
      { "hidden", "on|off", 2, 2, 0, ARG_DB|ARG_ON_OFF|ARG_MAGIC|CFG_HIDDEN,
            &config_generic, "( OLcfgDbAt:0.17 NAME 'olcHidden' "
                  "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
      { "idletimeout", "timeout", 2, 2, 0, ARG_INT,
            &global_idletimeout, "( OLcfgGlAt:18 NAME 'olcIdleTimeout' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "include", "file", 2, 2, 0, ARG_MAGIC,
            &config_include, "( OLcfgGlAt:19 NAME 'olcInclude' "
                  "SUP labeledURI )", NULL, NULL },
      { "index_substr_if_minlen", "min", 2, 2, 0, ARG_INT|ARG_NONZERO|ARG_MAGIC|CFG_SSTR_IF_MIN,
            &config_generic, "( OLcfgGlAt:20 NAME 'olcIndexSubstrIfMinLen' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "index_substr_if_maxlen", "max", 2, 2, 0, ARG_INT|ARG_NONZERO|ARG_MAGIC|CFG_SSTR_IF_MAX,
            &config_generic, "( OLcfgGlAt:21 NAME 'olcIndexSubstrIfMaxLen' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "index_substr_any_len", "len", 2, 2, 0, ARG_INT|ARG_NONZERO,
            &index_substr_any_len, "( OLcfgGlAt:22 NAME 'olcIndexSubstrAnyLen' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "index_substr_any_step", "step", 2, 2, 0, ARG_INT|ARG_NONZERO,
            &index_substr_any_step, "( OLcfgGlAt:23 NAME 'olcIndexSubstrAnyStep' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "index_intlen", "len", 2, 2, 0, ARG_INT|ARG_MAGIC|CFG_IX_INTLEN,
            &config_generic, "( OLcfgGlAt:84 NAME 'olcIndexIntLen' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "lastmod", "on|off", 2, 2, 0, ARG_DB|ARG_ON_OFF|ARG_MAGIC|CFG_LASTMOD,
            &config_generic, "( OLcfgDbAt:0.4 NAME 'olcLastMod' "
                  "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
      { "limits", "limits", 2, 0, 0, ARG_DB|ARG_MAGIC|CFG_LIMITS,
            &config_generic, "( OLcfgDbAt:0.5 NAME 'olcLimits' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )", NULL, NULL },
      { "localSSF", "ssf", 2, 2, 0, ARG_INT,
            &local_ssf, "( OLcfgGlAt:26 NAME 'olcLocalSSF' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "logfile", "file", 2, 2, 0, ARG_STRING|ARG_MAGIC|CFG_LOGFILE,
            &config_generic, "( OLcfgGlAt:27 NAME 'olcLogFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "loglevel", "level", 2, 0, 0, ARG_MAGIC,
            &config_loglevel, "( OLcfgGlAt:28 NAME 'olcLogLevel' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "maxDerefDepth", "depth", 2, 2, 0, ARG_DB|ARG_INT|ARG_MAGIC|CFG_DEPTH,
            &config_generic, "( OLcfgDbAt:0.6 NAME 'olcMaxDerefDepth' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "mirrormode", "on|off", 2, 2, 0, ARG_DB|ARG_ON_OFF|ARG_MAGIC|CFG_MIRRORMODE,
            &config_generic, "( OLcfgDbAt:0.16 NAME 'olcMirrorMode' "
                  "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
      { "moduleload",   "file", 2, 0, 0,
#ifdef SLAPD_MODULES
            ARG_MAGIC|CFG_MODLOAD|ARG_NO_DELETE, &config_generic,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:30 NAME 'olcModuleLoad' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )", NULL, NULL },
      { "modulepath", "path", 2, 2, 0,
#ifdef SLAPD_MODULES
            ARG_MAGIC|CFG_MODPATH|ARG_NO_DELETE|ARG_NO_INSERT, &config_generic,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:31 NAME 'olcModulePath' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "monitoring", "TRUE|FALSE", 2, 2, 0,
            ARG_MAGIC|CFG_MONITORING|ARG_DB|ARG_ON_OFF, &config_generic,
            "( OLcfgDbAt:0.18 NAME 'olcMonitoring' "
                  "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
      { "objectclass", "objectclass", 2, 0, 0, ARG_PAREN|ARG_MAGIC|CFG_OC,
            &config_generic, "( OLcfgGlAt:32 NAME 'olcObjectClasses' "
            "DESC 'OpenLDAP object classes' "
            "EQUALITY caseIgnoreMatch "
            "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )",
                  NULL, NULL },
      { "objectidentifier", "name> <oid", 3, 3, 0, ARG_MAGIC|CFG_OID,
            &config_generic, "( OLcfgGlAt:33 NAME 'olcObjectIdentifier' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )", NULL, NULL },
      { "overlay", "overlay", 2, 2, 0, ARG_MAGIC,
            &config_overlay, "( OLcfgGlAt:34 NAME 'olcOverlay' "
                  "SUP olcDatabase SINGLE-VALUE X-ORDERED 'SIBLINGS' )", NULL, NULL },
      { "password-crypt-salt-format", "salt", 2, 2, 0, ARG_STRING|ARG_MAGIC|CFG_SALT,
            &config_generic, "( OLcfgGlAt:35 NAME 'olcPasswordCryptSaltFormat' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "password-hash", "hash", 2, 2, 0, ARG_MAGIC,
            &config_passwd_hash, "( OLcfgGlAt:36 NAME 'olcPasswordHash' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "pidfile", "file", 2, 2, 0, ARG_STRING,
            &slapd_pid_file, "( OLcfgGlAt:37 NAME 'olcPidFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "plugin", NULL, 0, 0, 0,
#ifdef LDAP_SLAPI
            ARG_MAGIC|CFG_PLUGIN, &config_generic,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:38 NAME 'olcPlugin' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "pluginlog", "filename", 2, 2, 0,
#ifdef LDAP_SLAPI
            ARG_STRING, &slapi_log_file,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:39 NAME 'olcPluginLogFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "readonly", "on|off", 2, 2, 0, ARG_MAY_DB|ARG_ON_OFF|ARG_MAGIC|CFG_RO,
            &config_generic, "( OLcfgGlAt:40 NAME 'olcReadOnly' "
                  "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
      { "referral", "url", 2, 2, 0, ARG_MAGIC,
            &config_referral, "( OLcfgGlAt:41 NAME 'olcReferral' "
                  "SUP labeledURI SINGLE-VALUE )", NULL, NULL },
      { "replica", "host or uri", 2, 0, 0, ARG_DB|ARG_MAGIC,
            &config_obsolete, "( OLcfgDbAt:0.7 NAME 'olcReplica' "
                  "EQUALITY caseIgnoreMatch "
                  "SUP labeledURI X-ORDERED 'VALUES' )", NULL, NULL },
      { "replica-argsfile", NULL, 0, 0, 0, ARG_MAY_DB|ARG_MAGIC,
            &config_obsolete, "( OLcfgGlAt:43 NAME 'olcReplicaArgsFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "replica-pidfile", NULL, 0, 0, 0, ARG_MAY_DB|ARG_MAGIC,
            &config_obsolete, "( OLcfgGlAt:44 NAME 'olcReplicaPidFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "replicationInterval", NULL, 0, 0, 0, ARG_MAY_DB|ARG_MAGIC,
            &config_obsolete, "( OLcfgGlAt:45 NAME 'olcReplicationInterval' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "replogfile", "filename", 2, 2, 0, ARG_MAY_DB|ARG_MAGIC,
            &config_obsolete, "( OLcfgGlAt:46 NAME 'olcReplogFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "require", "features", 2, 0, 7, ARG_MAY_DB|ARG_MAGIC,
            &config_requires, "( OLcfgGlAt:47 NAME 'olcRequires' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "restrict", "op_list", 2, 0, 0, ARG_MAY_DB|ARG_MAGIC,
            &config_restrict, "( OLcfgGlAt:48 NAME 'olcRestrict' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "reverse-lookup", "on|off", 2, 2, 0,
#ifdef SLAPD_RLOOKUPS
            ARG_ON_OFF, &use_reverse_lookup,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:49 NAME 'olcReverseLookup' "
                  "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
      { "rootdn", "dn", 2, 2, 0, ARG_DB|ARG_DN|ARG_QUOTE|ARG_MAGIC,
            &config_rootdn, "( OLcfgDbAt:0.8 NAME 'olcRootDN' "
                  "SYNTAX OMsDN SINGLE-VALUE )", NULL, NULL },
      { "rootDSE", "file", 2, 2, 0, ARG_MAGIC|CFG_ROOTDSE,
            &config_generic, "( OLcfgGlAt:51 NAME 'olcRootDSE' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "rootpw", "password", 2, 2, 0, ARG_BERVAL|ARG_DB|ARG_MAGIC,
            &config_rootpw, "( OLcfgDbAt:0.9 NAME 'olcRootPW' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "sasl-authz-policy", NULL, 2, 2, 0, ARG_MAGIC|CFG_AZPOLICY,
            &config_generic, NULL, NULL, NULL },
      { "sasl-host", "host", 2, 2, 0,
#ifdef HAVE_CYRUS_SASL
            ARG_STRING|ARG_UNIQUE, &sasl_host,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:53 NAME 'olcSaslHost' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "sasl-realm", "realm", 2, 2, 0,
#ifdef HAVE_CYRUS_SASL
            ARG_STRING|ARG_UNIQUE, &global_realm,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:54 NAME 'olcSaslRealm' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "sasl-regexp", NULL, 3, 3, 0, ARG_MAGIC|CFG_AZREGEXP,
            &config_generic, NULL, NULL, NULL },
      { "sasl-secprops", "properties", 2, 2, 0,
#ifdef HAVE_CYRUS_SASL
            ARG_MAGIC|CFG_SASLSECP, &config_generic,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:56 NAME 'olcSaslSecProps' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "saslRegexp",   NULL, 3, 3, 0, ARG_MAGIC|CFG_AZREGEXP,
            &config_generic, NULL, NULL, NULL },
      { "schemadn", "dn", 2, 2, 0, ARG_MAY_DB|ARG_DN|ARG_QUOTE|ARG_MAGIC,
            &config_schema_dn, "( OLcfgGlAt:58 NAME 'olcSchemaDN' "
                  "SYNTAX OMsDN SINGLE-VALUE )", NULL, NULL },
      { "security", "factors", 2, 0, 0, ARG_MAY_DB|ARG_MAGIC,
            &config_security, "( OLcfgGlAt:59 NAME 'olcSecurity' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "serverID", "number> <[URI]", 2, 3, 0, ARG_MAGIC|CFG_SERVERID,
            &config_generic, "( OLcfgGlAt:81 NAME 'olcServerID' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "sizelimit", "limit", 2, 0, 0, ARG_MAY_DB|ARG_MAGIC,
            &config_sizelimit, "( OLcfgGlAt:60 NAME 'olcSizeLimit' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "sockbuf_max_incoming", "max", 2, 2, 0, ARG_BER_LEN_T,
            &sockbuf_max_incoming, "( OLcfgGlAt:61 NAME 'olcSockbufMaxIncoming' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "sockbuf_max_incoming_auth", "max", 2, 2, 0, ARG_BER_LEN_T,
            &sockbuf_max_incoming_auth, "( OLcfgGlAt:62 NAME 'olcSockbufMaxIncomingAuth' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "sortvals", "attr", 2, 0, 0, ARG_MAGIC|CFG_SORTVALS,
            &config_generic, "( OLcfgGlAt:83 NAME 'olcSortVals' "
                  "DESC 'Attributes whose values will always be sorted' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "subordinate", "[advertise]", 1, 2, 0, ARG_DB|ARG_MAGIC,
            &config_subordinate, "( OLcfgDbAt:0.15 NAME 'olcSubordinate' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "suffix", "suffix", 2, 2, 0, ARG_DB|ARG_DN|ARG_QUOTE|ARG_MAGIC,
            &config_suffix, "( OLcfgDbAt:0.10 NAME 'olcSuffix' "
                  "EQUALITY distinguishedNameMatch "
                  "SYNTAX OMsDN )", NULL, NULL },
      { "syncrepl", NULL, 0, 0, 0, ARG_DB|ARG_MAGIC,
            &syncrepl_config, "( OLcfgDbAt:0.11 NAME 'olcSyncrepl' "
                  "EQUALITY caseIgnoreMatch "
                  "SYNTAX OMsDirectoryString X-ORDERED 'VALUES' )", NULL, NULL },
      { "threads", "count", 2, 2, 0,
#ifdef NO_THREADS
            ARG_IGNORED, NULL,
#else
            ARG_INT|ARG_MAGIC|CFG_THREADS, &config_generic,
#endif
            "( OLcfgGlAt:66 NAME 'olcThreads' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "timelimit", "limit", 2, 0, 0, ARG_MAY_DB|ARG_MAGIC,
            &config_timelimit, "( OLcfgGlAt:67 NAME 'olcTimeLimit' "
                  "SYNTAX OMsDirectoryString )", NULL, NULL },
      { "TLSCACertificateFile", NULL, 0, 0, 0,
#ifdef HAVE_TLS
            CFG_TLS_CA_FILE|ARG_STRING|ARG_MAGIC, &config_tls_option,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:68 NAME 'olcTLSCACertificateFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "TLSCACertificatePath", NULL,     0, 0, 0,
#ifdef HAVE_TLS
            CFG_TLS_CA_PATH|ARG_STRING|ARG_MAGIC, &config_tls_option,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:69 NAME 'olcTLSCACertificatePath' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "TLSCertificateFile", NULL, 0, 0, 0,
#ifdef HAVE_TLS
            CFG_TLS_CERT_FILE|ARG_STRING|ARG_MAGIC, &config_tls_option,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:70 NAME 'olcTLSCertificateFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "TLSCertificateKeyFile", NULL, 0, 0, 0,
#ifdef HAVE_TLS
            CFG_TLS_CERT_KEY|ARG_STRING|ARG_MAGIC, &config_tls_option,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:71 NAME 'olcTLSCertificateKeyFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "TLSCipherSuite",     NULL, 0, 0, 0,
#ifdef HAVE_TLS
            CFG_TLS_CIPHER|ARG_STRING|ARG_MAGIC, &config_tls_option,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:72 NAME 'olcTLSCipherSuite' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "TLSCRLCheck", NULL, 0, 0, 0,
#if defined(HAVE_TLS) && defined(HAVE_OPENSSL_CRL)
            CFG_TLS_CRLCHECK|ARG_STRING|ARG_MAGIC, &config_tls_config,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:73 NAME 'olcTLSCRLCheck' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "TLSCRLFile", NULL, 0, 0, 0,
#if defined(HAVE_GNUTLS)
            CFG_TLS_CRL_FILE|ARG_STRING|ARG_MAGIC, &config_tls_option,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:82 NAME 'olcTLSCRLFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "TLSRandFile", NULL, 0, 0, 0,
#ifdef HAVE_TLS
            CFG_TLS_RAND|ARG_STRING|ARG_MAGIC, &config_tls_option,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:74 NAME 'olcTLSRandFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "TLSVerifyClient", NULL, 0, 0, 0,
#ifdef HAVE_TLS
            CFG_TLS_VERIFY|ARG_STRING|ARG_MAGIC, &config_tls_config,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:75 NAME 'olcTLSVerifyClient' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "TLSDHParamFile", NULL, 0, 0, 0,
#ifdef HAVE_TLS
            CFG_TLS_DH_FILE|ARG_STRING|ARG_MAGIC, &config_tls_option,
#else
            ARG_IGNORED, NULL,
#endif
            "( OLcfgGlAt:77 NAME 'olcTLSDHParamFile' "
                  "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
      { "tool-threads", "count", 2, 2, 0, ARG_INT|ARG_MAGIC|CFG_TTHREADS,
            &config_generic, "( OLcfgGlAt:80 NAME 'olcToolThreads' "
                  "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
      { "ucdata-path", "path", 2, 2, 0, ARG_IGNORED,
            NULL, NULL, NULL, NULL },
      { "updatedn", "dn", 2, 2, 0, ARG_DB|ARG_DN|ARG_QUOTE|ARG_MAGIC,
            &config_updatedn, "( OLcfgDbAt:0.12 NAME 'olcUpdateDN' "
                  "SYNTAX OMsDN SINGLE-VALUE )", NULL, NULL },
      { "updateref", "url", 2, 2, 0, ARG_DB|ARG_MAGIC,
            &config_updateref, "( OLcfgDbAt:0.13 NAME 'olcUpdateRef' "
                  "EQUALITY caseIgnoreMatch "
                  "SUP labeledURI )", NULL, NULL },
      { NULL,     NULL, 0, 0, 0, ARG_IGNORED,
            NULL, NULL, NULL, NULL }
};

/* Routines to check if a child can be added to this type */
static ConfigLDAPadd cfAddSchema, cfAddInclude, cfAddDatabase,
      cfAddBackend, cfAddModule, cfAddOverlay;

/* NOTE: be careful when defining array members
 * that can be conditionally compiled */
#define CFOC_GLOBAL     cf_ocs[1]
#define CFOC_SCHEMA     cf_ocs[2]
#define CFOC_BACKEND    cf_ocs[3]
#define CFOC_DATABASE   cf_ocs[4]
#define CFOC_OVERLAY    cf_ocs[5]
#define CFOC_INCLUDE    cf_ocs[6]
#define CFOC_FRONTEND   cf_ocs[7]
#ifdef SLAPD_MODULES
#define CFOC_MODULE     cf_ocs[8]
#endif /* SLAPD_MODULES */

static ConfigOCs cf_ocs[] = {
      { "( OLcfgGlOc:0 "
            "NAME 'olcConfig' "
            "DESC 'OpenLDAP configuration object' "
            "ABSTRACT SUP top )", Cft_Abstract, NULL },
      { "( OLcfgGlOc:1 "
            "NAME 'olcGlobal' "
            "DESC 'OpenLDAP Global configuration options' "
            "SUP olcConfig STRUCTURAL "
            "MAY ( cn $ olcConfigFile $ olcConfigDir $ olcAllows $ olcArgsFile $ "
             "olcAttributeOptions $ olcAuthIDRewrite $ "
             "olcAuthzPolicy $ olcAuthzRegexp $ olcConcurrency $ "
             "olcConnMaxPending $ olcConnMaxPendingAuth $ "
             "olcDisallows $ olcGentleHUP $ olcIdleTimeout $ "
             "olcIndexSubstrIfMaxLen $ olcIndexSubstrIfMinLen $ "
             "olcIndexSubstrAnyLen $ olcIndexSubstrAnyStep $ olcIndexIntLen $ "
             "olcLocalSSF $ olcLogLevel $ "
             "olcPasswordCryptSaltFormat $ olcPasswordHash $ olcPidFile $ "
             "olcPluginLogFile $ olcReadOnly $ olcReferral $ "
             "olcReplogFile $ olcRequires $ olcRestrict $ olcReverseLookup $ "
             "olcRootDSE $ "
             "olcSaslHost $ olcSaslRealm $ olcSaslSecProps $ "
             "olcSecurity $ olcServerID $ olcSizeLimit $ "
             "olcSockbufMaxIncoming $ olcSockbufMaxIncomingAuth $ "
             "olcThreads $ olcTimeLimit $ olcTLSCACertificateFile $ "
             "olcTLSCACertificatePath $ olcTLSCertificateFile $ "
             "olcTLSCertificateKeyFile $ olcTLSCipherSuite $ olcTLSCRLCheck $ "
             "olcTLSRandFile $ olcTLSVerifyClient $ olcTLSDHParamFile $ "
             "olcTLSCRLFile $ olcToolThreads $ "
             "olcObjectIdentifier $ olcAttributeTypes $ olcObjectClasses $ "
             "olcDitContentRules ) )", Cft_Global },
      { "( OLcfgGlOc:2 "
            "NAME 'olcSchemaConfig' "
            "DESC 'OpenLDAP schema object' "
            "SUP olcConfig STRUCTURAL "
            "MAY ( cn $ olcObjectIdentifier $ olcAttributeTypes $ "
             "olcObjectClasses $ olcDitContentRules ) )",
                  Cft_Schema, NULL, cfAddSchema },
      { "( OLcfgGlOc:3 "
            "NAME 'olcBackendConfig' "
            "DESC 'OpenLDAP Backend-specific options' "
            "SUP olcConfig STRUCTURAL "
            "MUST olcBackend )", Cft_Backend, NULL, cfAddBackend },
      { "( OLcfgGlOc:4 "
            "NAME 'olcDatabaseConfig' "
            "DESC 'OpenLDAP Database-specific options' "
            "SUP olcConfig STRUCTURAL "
            "MUST olcDatabase "
            "MAY ( olcHidden $ olcSuffix $ olcSubordinate $ olcAccess $ "
             "olcLastMod $ olcLimits $ "
             "olcMaxDerefDepth $ olcPlugin $ olcReadOnly $ olcReplica $ "
             "olcReplicaArgsFile $ olcReplicaPidFile $ olcReplicationInterval $ "
             "olcReplogFile $ olcRequires $ olcRestrict $ olcRootDN $ olcRootPW $ "
             "olcSchemaDN $ olcSecurity $ olcSizeLimit $ olcSyncrepl $ "
             "olcTimeLimit $ olcUpdateDN $ olcUpdateRef $ olcMirrorMode $ "
             "olcMonitoring ) )",
                  Cft_Database, NULL, cfAddDatabase },
      { "( OLcfgGlOc:5 "
            "NAME 'olcOverlayConfig' "
            "DESC 'OpenLDAP Overlay-specific options' "
            "SUP olcConfig STRUCTURAL "
            "MUST olcOverlay )", Cft_Overlay, NULL, cfAddOverlay },
      { "( OLcfgGlOc:6 "
            "NAME 'olcIncludeFile' "
            "DESC 'OpenLDAP configuration include file' "
            "SUP olcConfig STRUCTURAL "
            "MUST olcInclude "
            "MAY ( cn $ olcRootDSE ) )",
            /* Used to be Cft_Include, that def has been removed */
            Cft_Abstract, NULL, cfAddInclude },
      /* This should be STRUCTURAL like all the other database classes, but
       * that would mean inheriting all of the olcDatabaseConfig attributes,
       * which causes them to be merged twice in config_build_entry.
       */
      { "( OLcfgGlOc:7 "
            "NAME 'olcFrontendConfig' "
            "DESC 'OpenLDAP frontend configuration' "
            "AUXILIARY "
            "MAY ( olcDefaultSearchBase $ olcPasswordHash $ olcSortVals ) )",
            Cft_Database, NULL, NULL },
#ifdef SLAPD_MODULES
      { "( OLcfgGlOc:8 "
            "NAME 'olcModuleList' "
            "DESC 'OpenLDAP dynamic module info' "
            "SUP olcConfig STRUCTURAL "
            "MAY ( cn $ olcModulePath $ olcModuleLoad ) )",
            Cft_Module, NULL, cfAddModule },
#endif
      { NULL, 0, NULL }
};

typedef struct ServerID {
      struct ServerID *si_next;
      struct berval si_url;
      int si_num;
} ServerID;

static ServerID *sid_list;

typedef struct voidList {
      struct voidList *vl_next;
      void *vl_ptr;
} voidList;

typedef struct ADlist {
      struct ADlist *al_next;
      AttributeDescription *al_desc;
} ADlist;

static ADlist *sortVals;

static int
config_generic(ConfigArgs *c) {
      int i;

      if ( c->op == SLAP_CONFIG_EMIT ) {
            int rc = 0;
            switch(c->type) {
            case CFG_CONCUR:
                  c->value_int = ldap_pvt_thread_get_concurrency();
                  break;
            case CFG_THREADS:
                  c->value_int = connection_pool_max;
                  break;
            case CFG_TTHREADS:
                  c->value_int = slap_tool_thread_max;
                  break;
            case CFG_SALT:
                  if ( passwd_salt )
                        c->value_string = ch_strdup( passwd_salt );
                  else
                        rc = 1;
                  break;
            case CFG_LIMITS:
                  if ( c->be->be_limits ) {
                        char buf[4096*3];
                        struct berval bv;

                        for ( i=0; c->be->be_limits[i]; i++ ) {
                              bv.bv_len = snprintf( buf, sizeof( buf ), SLAP_X_ORDERED_FMT, i );
                              if ( bv.bv_len >= sizeof( buf ) ) {
                                    ber_bvarray_free_x( c->rvalue_vals, NULL );
                                    c->rvalue_vals = NULL;
                                    rc = 1;
                                    break;
                              }
                              bv.bv_val = buf + bv.bv_len;
                              limits_unparse( c->be->be_limits[i], &bv,
                                          sizeof( buf ) - ( bv.bv_val - buf ) );
                              bv.bv_len += bv.bv_val - buf;
                              bv.bv_val = buf;
                              value_add_one( &c->rvalue_vals, &bv );
                        }
                  }
                  if ( !c->rvalue_vals ) rc = 1;
                  break;
            case CFG_RO:
                  c->value_int = (c->be->be_restrictops & SLAP_RESTRICT_OP_WRITES) ==
                        SLAP_RESTRICT_OP_WRITES;
                  break;
            case CFG_AZPOLICY:
                  c->value_string = ch_strdup( slap_sasl_getpolicy());
                  break;
            case CFG_AZREGEXP:
                  slap_sasl_regexp_unparse( &c->rvalue_vals );
                  if ( !c->rvalue_vals ) rc = 1;
                  break;
#ifdef HAVE_CYRUS_SASL
            case CFG_SASLSECP: {
                  struct berval bv = BER_BVNULL;
                  slap_sasl_secprops_unparse( &bv );
                  if ( !BER_BVISNULL( &bv )) {
                        ber_bvarray_add( &c->rvalue_vals, &bv );
                  } else {
                        rc = 1;
                  }
                  }
                  break;
#endif
            case CFG_DEPTH:
                  c->value_int = c->be->be_max_deref_depth;
                  break;
            case CFG_HIDDEN:
                  if ( SLAP_DBHIDDEN( c->be )) {
                        c->value_int = 1;
                  } else {
                        rc = 1;
                  }
                  break;
            case CFG_OID: {
                  ConfigFile *cf = c->ca_private;
                  if ( !cf )
                        oidm_unparse( &c->rvalue_vals, NULL, NULL, 1 );
                  else if ( cf->c_om_head )
                        oidm_unparse( &c->rvalue_vals, cf->c_om_head,
                              cf->c_om_tail, 0 );
                  if ( !c->rvalue_vals )
                        rc = 1;
                  }
                  break;
            case CFG_ATOPT:
                  ad_unparse_options( &c->rvalue_vals );
                  break;
            case CFG_OC: {
                  ConfigFile *cf = c->ca_private;
                  if ( !cf )
                        oc_unparse( &c->rvalue_vals, NULL, NULL, 1 );
                  else if ( cf->c_oc_head )
                        oc_unparse( &c->rvalue_vals, cf->c_oc_head,
                              cf->c_oc_tail, 0 );
                  if ( !c->rvalue_vals )
                        rc = 1;
                  }
                  break;
            case CFG_ATTR: {
                  ConfigFile *cf = c->ca_private;
                  if ( !cf )
                        at_unparse( &c->rvalue_vals, NULL, NULL, 1 );
                  else if ( cf->c_at_head )
                        at_unparse( &c->rvalue_vals, cf->c_at_head,
                              cf->c_at_tail, 0 );
                  if ( !c->rvalue_vals )
                        rc = 1;
                  }
                  break;
            case CFG_DIT: {
                  ConfigFile *cf = c->ca_private;
                  if ( !cf )
                        cr_unparse( &c->rvalue_vals, NULL, NULL, 1 );
                  else if ( cf->c_cr_head )
                        cr_unparse( &c->rvalue_vals, cf->c_cr_head,
                              cf->c_cr_tail, 0 );
                  if ( !c->rvalue_vals )
                        rc = 1;
                  }
                  break;
                  
            case CFG_ACL: {
                  AccessControl *a;
                  char *src, *dst, ibuf[11];
                  struct berval bv, abv;
                  AccessControl *end;
                  if ( c->be == frontendDB )
                        end = NULL;
                  else
                        end = frontendDB->be_acl;
                  for (i=0, a=c->be->be_acl; a && a != end; i++,a=a->acl_next) {
                        abv.bv_len = snprintf( ibuf, sizeof( ibuf ), SLAP_X_ORDERED_FMT, i );
                        if ( abv.bv_len >= sizeof( ibuf ) ) {
                              ber_bvarray_free_x( c->rvalue_vals, NULL );
                              c->rvalue_vals = NULL;
                              i = 0;
                              break;
                        }
                        acl_unparse( a, &bv );
                        abv.bv_val = ch_malloc( abv.bv_len + bv.bv_len + 1 );
                        AC_MEMCPY( abv.bv_val, ibuf, abv.bv_len );
                        /* Turn TAB / EOL into plain space */
                        for (src=bv.bv_val,dst=abv.bv_val+abv.bv_len; *src; src++) {
                              if (isspace((unsigned char)*src)) *dst++ = ' ';
                              else *dst++ = *src;
                        }
                        *dst = '\0';
                        if (dst[-1] == ' ') {
                              dst--;
                              *dst = '\0';
                        }
                        abv.bv_len = dst - abv.bv_val;
                        ber_bvarray_add( &c->rvalue_vals, &abv );
                  }
                  rc = (!i);
                  break;
            }
            case CFG_ROOTDSE: {
                  ConfigFile *cf = c->ca_private;
                  if ( cf->c_dseFiles ) {
                        value_add( &c->rvalue_vals, cf->c_dseFiles );
                  } else {
                        rc = 1;
                  }
                  }
                  break;
            case CFG_SERVERID:
                  if ( sid_list ) {
                        ServerID *si;
                        struct berval bv;

                        for ( si = sid_list; si; si=si->si_next ) {
                              assert( si->si_num >= 0 && si->si_num <= SLAP_SYNC_SID_MAX );
                              if ( !BER_BVISEMPTY( &si->si_url )) {
                                    bv.bv_len = si->si_url.bv_len + 6;
                                    bv.bv_val = ch_malloc( bv.bv_len );
                                    sprintf( bv.bv_val, "%d %s", si->si_num,
                                          si->si_url.bv_val );
                                    ber_bvarray_add( &c->rvalue_vals, &bv );
                              } else {
                                    char buf[5];
                                    bv.bv_val = buf;
                                    bv.bv_len = sprintf( buf, "%d", si->si_num );
                                    value_add_one( &c->rvalue_vals, &bv );
                              }
                        }
                  } else {
                        rc = 1;
                  }
                  break;
            case CFG_LOGFILE:
                  if ( logfileName )
                        c->value_string = ch_strdup( logfileName );
                  else
                        rc = 1;
                  break;
            case CFG_LASTMOD:
                  c->value_int = (SLAP_NOLASTMOD(c->be) == 0);
                  break;
            case CFG_MIRRORMODE:
                  if ( SLAP_SHADOW(c->be))
                        c->value_int = (SLAP_SINGLE_SHADOW(c->be) == 0);
                  else
                        rc = 1;
                  break;
            case CFG_MONITORING:
                  c->value_int = (SLAP_DBMONITORING(c->be) != 0);
                  break;
            case CFG_SSTR_IF_MAX:
                  c->value_int = index_substr_if_maxlen;
                  break;
            case CFG_SSTR_IF_MIN:
                  c->value_int = index_substr_if_minlen;
                  break;
            case CFG_IX_INTLEN:
                  c->value_int = index_intlen;
                  break;
            case CFG_SORTVALS: {
                  ADlist *sv;
                  rc = 1;
                  for ( sv = sortVals; sv; sv = sv->al_next ) {
                        value_add_one( &c->rvalue_vals, &sv->al_desc->ad_cname );
                        rc = 0;
                  }
                  } break;
#ifdef SLAPD_MODULES
            case CFG_MODLOAD: {
                  ModPaths *mp = c->ca_private;
                  if (mp->mp_loads) {
                        int i;
                        for (i=0; !BER_BVISNULL(&mp->mp_loads[i]); i++) {
                              struct berval bv;
                              bv.bv_val = c->log;
                              bv.bv_len = snprintf( bv.bv_val, sizeof( c->log ),
                                    SLAP_X_ORDERED_FMT "%s", i,
                                    mp->mp_loads[i].bv_val );
                              if ( bv.bv_len >= sizeof( c->log ) ) {
                                    ber_bvarray_free_x( c->rvalue_vals, NULL );
                                    c->rvalue_vals = NULL;
                                    break;
                              }
                              value_add_one( &c->rvalue_vals, &bv );
                        }
                  }

                  rc = c->rvalue_vals ? 0 : 1;
                  }
                  break;
            case CFG_MODPATH: {
                  ModPaths *mp = c->ca_private;
                  if ( !BER_BVISNULL( &mp->mp_path ))
                        value_add_one( &c->rvalue_vals, &mp->mp_path );

                  rc = c->rvalue_vals ? 0 : 1;
                  }
                  break;
#endif
#ifdef LDAP_SLAPI
            case CFG_PLUGIN:
                  slapi_int_plugin_unparse( c->be, &c->rvalue_vals );
                  if ( !c->rvalue_vals ) rc = 1;
                  break;
#endif
#ifdef SLAP_AUTH_REWRITE
            case CFG_REWRITE:
                  if ( authz_rewrites ) {
                        struct berval bv, idx;
                        char ibuf[32];
                        int i;

                        idx.bv_val = ibuf;
                        for ( i=0; !BER_BVISNULL( &authz_rewrites[i] ); i++ ) {
                              idx.bv_len = snprintf( idx.bv_val, sizeof( ibuf ), SLAP_X_ORDERED_FMT, i );
                              if ( idx.bv_len >= sizeof( ibuf ) ) {
                                    ber_bvarray_free_x( c->rvalue_vals, NULL );
                                    c->rvalue_vals = NULL;
                                    break;
                              }
                              bv.bv_len = idx.bv_len + authz_rewrites[i].bv_len;
                              bv.bv_val = ch_malloc( bv.bv_len + 1 );
                              AC_MEMCPY( bv.bv_val, idx.bv_val, idx.bv_len );
                              AC_MEMCPY( &bv.bv_val[ idx.bv_len ],
                                    authz_rewrites[i].bv_val,
                                    authz_rewrites[i].bv_len + 1 );
                              ber_bvarray_add( &c->rvalue_vals, &bv );
                        }
                  }
                  if ( !c->rvalue_vals ) rc = 1;
                  break;
#endif
            default:
                  rc = 1;
            }
            return rc;
      } else if ( c->op == LDAP_MOD_DELETE ) {
            int rc = 0;
            switch(c->type) {
            /* single-valued attrs, no-ops */
            case CFG_CONCUR:
            case CFG_THREADS:
            case CFG_TTHREADS:
            case CFG_RO:
            case CFG_AZPOLICY:
            case CFG_DEPTH:
            case CFG_LASTMOD:
            case CFG_MIRRORMODE:
            case CFG_MONITORING:
            case CFG_SASLSECP:
            case CFG_SSTR_IF_MAX:
            case CFG_SSTR_IF_MIN:
                  break;

            /* no-ops, requires slapd restart */
            case CFG_PLUGIN:
            case CFG_MODLOAD:
            case CFG_AZREGEXP:
            case CFG_REWRITE:
                  snprintf(c->log, sizeof( c->log ), "change requires slapd restart");
                  break;

            case CFG_SALT:
                  ch_free( passwd_salt );
                  passwd_salt = NULL;
                  break;

            case CFG_LOGFILE:
                  ch_free( logfileName );
                  logfileName = NULL;
                  if ( logfile ) {
                        fclose( logfile );
                        logfile = NULL;
                  }
                  break;

            case CFG_SERVERID: {
                  ServerID *si, **sip;

                  for ( i=0, si = sid_list, sip = &sid_list;
                        si; si = *sip, i++ ) {
                        if ( c->valx == -1 || i == c->valx ) {
                              *sip = si->si_next;
                              ch_free( si );
                              if ( c->valx >= 0 )
                                    break;
                        } else {
                              sip = &si->si_next;
                        }
                  }
                  }
                  break;
            case CFG_HIDDEN:
                  c->be->be_flags &= ~SLAP_DBFLAG_HIDDEN;
                  break;

            case CFG_IX_INTLEN:
                  index_intlen = SLAP_INDEX_INTLEN_DEFAULT;
                  index_intlen_strlen = SLAP_INDEX_INTLEN_STRLEN(
                        SLAP_INDEX_INTLEN_DEFAULT );
                  break;

            case CFG_ACL:
                  if ( c->valx < 0 ) {
                        AccessControl *end;
                        if ( c->be == frontendDB )
                              end = NULL;
                        else
                              end = frontendDB->be_acl;
                        acl_destroy( c->be->be_acl, end );
                        c->be->be_acl = end;

                  } else {
                        AccessControl **prev, *a;
                        int i;
                        for (i=0, prev = &c->be->be_acl; i < c->valx;
                              i++ ) {
                              a = *prev;
                              prev = &a->acl_next;
                        }
                        a = *prev;
                        *prev = a->acl_next;
                        acl_free( a );
                  }
                  break;

            case CFG_OC: {
                  CfEntryInfo *ce;
                  /* Can be NULL when undoing a failed add */
                  if ( c->ca_entry ) {
                        ce = c->ca_entry->e_private;
                        /* can't modify the hardcoded schema */
                        if ( ce->ce_parent->ce_type == Cft_Global )
                              return 1;
                        }
                  }
                  cfn = c->ca_private;
                  if ( c->valx < 0 ) {
                        ObjectClass *oc;

                        for( oc = cfn->c_oc_head; oc; oc_next( &oc )) {
                              oc_delete( oc );
                              if ( oc  == cfn->c_oc_tail )
                                    break;
                        }
                        cfn->c_oc_head = cfn->c_oc_tail = NULL;
                  } else {
                        ObjectClass *oc, *prev = NULL;

                        for ( i=0, oc=cfn->c_oc_head; i<c->valx; i++) {
                              prev = oc;
                              oc_next( &oc );
                        }
                        oc_delete( oc );
                        if ( cfn->c_oc_tail == oc ) {
                              cfn->c_oc_tail = prev;
                        }
                        if ( cfn->c_oc_head == oc ) {
                              oc_next( &oc );
                              cfn->c_oc_head = oc;
                        }
                  }
                  break;

            case CFG_ATTR: {
                  CfEntryInfo *ce;
                  /* Can be NULL when undoing a failed add */
                  if ( c->ca_entry ) {
                        ce = c->ca_entry->e_private;
                        /* can't modify the hardcoded schema */
                        if ( ce->ce_parent->ce_type == Cft_Global )
                              return 1;
                        }
                  }
                  cfn = c->ca_private;
                  if ( c->valx < 0 ) {
                        AttributeType *at;

                        for( at = cfn->c_at_head; at; at_next( &at )) {
                              at_delete( at );
                              if ( at  == cfn->c_at_tail )
                                    break;
                        }
                        cfn->c_at_head = cfn->c_at_tail = NULL;
                  } else {
                        AttributeType *at, *prev = NULL;

                        for ( i=0, at=cfn->c_at_head; i<c->valx; i++) {
                              prev = at;
                              at_next( &at );
                        }
                        at_delete( at );
                        if ( cfn->c_at_tail == at ) {
                              cfn->c_at_tail = prev;
                        }
                        if ( cfn->c_at_head == at ) {
                              at_next( &at );
                              cfn->c_at_head = at;
                        }
                  }
                  break;
            case CFG_SORTVALS:
                  if ( c->valx < 0 ) {
                        ADlist *sv;
                        for ( sv = sortVals; sv; sv = sortVals ) {
                              sortVals = sv->al_next;
                              sv->al_desc->ad_type->sat_flags &= ~SLAP_AT_SORTED_VAL;
                              ch_free( sv );
                        }
                  } else {
                        ADlist *sv, **prev;
                        int i = 0;

                        for ( prev = &sortVals, sv = sortVals; i < c->valx; i++ ) {
                              prev = &sv->al_next;
                              sv = sv->al_next;
                        }
                        sv->al_desc->ad_type->sat_flags &= ~SLAP_AT_SORTED_VAL;
                        *prev = sv->al_next;
                        ch_free( sv );
                  }
                  break;

            case CFG_LIMITS:
                  /* FIXME: there is no limits_free function */
            case CFG_ATOPT:
                  /* FIXME: there is no ad_option_free function */
            case CFG_ROOTDSE:
                  /* FIXME: there is no way to remove attributes added by
                        a DSE file */
            case CFG_OID:
            case CFG_DIT:
            case CFG_MODPATH:
            default:
                  rc = 1;
                  break;
            }
            return rc;
      }

      switch(c->type) {
            case CFG_BACKEND:
                  if(!(c->bi = backend_info(c->argv[1]))) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> failed init", c->argv[0] );
                        Debug(LDAP_DEBUG_ANY, "%s: %s (%s)!\n",
                              c->log, c->cr_msg, c->argv[1] );
                        return(1);
                  }
                  break;

            case CFG_DATABASE:
                  c->bi = NULL;
                  /* NOTE: config is always the first backend!
                   */
                  if ( !strcasecmp( c->argv[1], "config" )) {
                        c->be = LDAP_STAILQ_FIRST(&backendDB);
                  } else if ( !strcasecmp( c->argv[1], "frontend" )) {
                        c->be = frontendDB;
                  } else {
                        c->be = backend_db_init(c->argv[1], NULL, c->valx, &c->reply);
                        if ( !c->be ) {
                              if ( c->cr_msg[0] == 0 )
                                    snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> failed init", c->argv[0] );
                              Debug(LDAP_DEBUG_ANY, "%s: %s (%s)\n", c->log, c->cr_msg, c->argv[1] );
                              return(1);
                        }
                  }
                  break;

            case CFG_CONCUR:
                  ldap_pvt_thread_set_concurrency(c->value_int);
                  break;

            case CFG_THREADS:
                  if ( c->value_int < 2 ) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ),
                              "threads=%d smaller than minimum value 2",
                              c->value_int );
                        Debug(LDAP_DEBUG_ANY, "%s: %s.\n",
                              c->log, c->cr_msg, 0 );
                        return 1;

                  } else if ( c->value_int > 2 * SLAP_MAX_WORKER_THREADS ) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ),
                              "warning, threads=%d larger than twice the default (2*%d=%d); YMMV",
                              c->value_int, SLAP_MAX_WORKER_THREADS, 2 * SLAP_MAX_WORKER_THREADS );
                        Debug(LDAP_DEBUG_ANY, "%s: %s.\n",
                              c->log, c->cr_msg, 0 );
                  }
                  if ( slapMode & SLAP_SERVER_MODE )
                        ldap_pvt_thread_pool_maxthreads(&connection_pool, c->value_int);
                  connection_pool_max = c->value_int; /* save for reference */
                  break;

            case CFG_TTHREADS:
                  if ( slapMode & SLAP_TOOL_MODE )
                        ldap_pvt_thread_pool_maxthreads(&connection_pool, c->value_int);
                  slap_tool_thread_max = c->value_int;      /* save for reference */
                  break;

            case CFG_SALT:
                  if ( passwd_salt ) ch_free( passwd_salt );
                  passwd_salt = c->value_string;
                  lutil_salt_format(passwd_salt);
                  break;

            case CFG_LIMITS:
                  if(limits_parse(c->be, c->fname, c->lineno, c->argc, c->argv))
                        return(1);
                  break;

            case CFG_RO:
                  if(c->value_int)
                        c->be->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
                  else
                        c->be->be_restrictops &= ~SLAP_RESTRICT_OP_WRITES;
                  break;

            case CFG_AZPOLICY:
                  ch_free(c->value_string);
                  if (slap_sasl_setpolicy( c->argv[1] )) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unable to parse value", c->argv[0] );
                        Debug(LDAP_DEBUG_ANY, "%s: %s \"%s\"\n",
                              c->log, c->cr_msg, c->argv[1] );
                        return(1);
                  }
                  break;
            
            case CFG_AZREGEXP:
                  if (slap_sasl_regexp_config( c->argv[1], c->argv[2] ))
                        return(1);
                  break;
                        
#ifdef HAVE_CYRUS_SASL
            case CFG_SASLSECP:
                  {
                  char *txt = slap_sasl_secprops( c->argv[1] );
                  if ( txt ) {
                        snprintf( c->cr_msg, sizeof(c->cr_msg), "<%s> %s",
                              c->argv[0], txt );
                        Debug(LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
                        return(1);
                  }
                  break;
                  }
#endif

            case CFG_DEPTH:
                  c->be->be_max_deref_depth = c->value_int;
                  break;

            case CFG_OID: {
                  OidMacro *om;

                  if ( c->op == LDAP_MOD_ADD && c->ca_private && cfn != c->ca_private )
                        cfn = c->ca_private;
                  if(parse_oidm(c, 1, &om))
                        return(1);
                  if (!cfn->c_om_head) cfn->c_om_head = om;
                  cfn->c_om_tail = om;
                  }
                  break;

            case CFG_OC: {
                  ObjectClass *oc, *prev;

                  if ( c->op == LDAP_MOD_ADD && c->ca_private && cfn != c->ca_private )
                        cfn = c->ca_private;
                  if ( c->valx < 0 ) {
                        prev = cfn->c_oc_tail;
                  } else {
                        prev = NULL;
                        /* If adding anything after the first, prev is easy */
                        if ( c->valx ) {
                              int i;
                              for (i=0, oc = cfn->c_oc_head; i<c->valx; i++) {
                                    prev = oc;
                                    oc_next( &oc );
                              }
                        } else
                        /* If adding the first, and head exists, find its prev */
                              if (cfn->c_oc_head) {
                              for ( oc_start( &oc ); oc != cfn->c_oc_head; ) {
                                    prev = oc;
                                    oc_next( &oc );
                              }
                        }
                        /* else prev is NULL, append to end of global list */
                  }
                  if(parse_oc(c, &oc, prev)) return(1);
                  if (!cfn->c_oc_head) cfn->c_oc_head = oc;
                  if (cfn->c_oc_tail == prev) cfn->c_oc_tail = oc;
                  }
                  break;

            case CFG_ATTR: {
                  AttributeType *at, *prev;

                  if ( c->op == LDAP_MOD_ADD && c->ca_private && cfn != c->ca_private )
                        cfn = c->ca_private;
                  if ( c->valx < 0 ) {
                        prev = cfn->c_at_tail;
                  } else {
                        prev = NULL;
                        /* If adding anything after the first, prev is easy */
                        if ( c->valx ) {
                              int i;
                              for (i=0, at = cfn->c_at_head; i<c->valx; i++) {
                                    prev = at;
                                    at_next( &at );
                              }
                        } else
                        /* If adding the first, and head exists, find its prev */
                              if (cfn->c_at_head) {
                              for ( at_start( &at ); at != cfn->c_at_head; ) {
                                    prev = at;
                                    at_next( &at );
                              }
                        }
                        /* else prev is NULL, append to end of global list */
                  }
                  if(parse_at(c, &at, prev)) return(1);
                  if (!cfn->c_at_head) cfn->c_at_head = at;
                  if (cfn->c_at_tail == prev) cfn->c_at_tail = at;
                  }
                  break;

            case CFG_DIT: {
                  ContentRule *cr;

                  if ( c->op == LDAP_MOD_ADD && c->ca_private && cfn != c->ca_private )
                        cfn = c->ca_private;
                  if(parse_cr(c, &cr)) return(1);
                  if (!cfn->c_cr_head) cfn->c_cr_head = cr;
                  cfn->c_cr_tail = cr;
                  }
                  break;

            case CFG_ATOPT:
                  ad_define_option(NULL, NULL, 0);
                  for(i = 1; i < c->argc; i++)
                        if(ad_define_option(c->argv[i], c->fname, c->lineno))
                              return(1);
                  break;

            case CFG_IX_INTLEN:
                  if ( c->value_int < SLAP_INDEX_INTLEN_DEFAULT )
                        c->value_int = SLAP_INDEX_INTLEN_DEFAULT;
                  else if ( c->value_int > 255 )
                        c->value_int = 255;
                  index_intlen = c->value_int;
                  index_intlen_strlen = SLAP_INDEX_INTLEN_STRLEN(
                        index_intlen );
                  break;
                  
            case CFG_SORTVALS: {
                  ADlist *svnew = NULL, *svtail, *sv;

                  for ( i = 1; i < c->argc; i++ ) {
                        AttributeDescription *ad = NULL;
                        const char *text;
                        int rc;

                        rc = slap_str2ad( c->argv[i], &ad, &text );
                        if ( rc ) {
                              snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unknown attribute type #%d",
                                    c->argv[0], i );
sortval_reject:
                              Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                                    c->log, c->cr_msg, c->argv[i] );
                              for ( sv = svnew; sv; sv = svnew ) {
                                    svnew = sv->al_next;
                                    ch_free( sv );
                              }
                              return 1;
                        }
                        if (( ad->ad_type->sat_flags & SLAP_AT_ORDERED ) ||
                              ad->ad_type->sat_single_value ) {
                              snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> inappropriate attribute type #%d",
                                    c->argv[0], i );
                              goto sortval_reject;
                        }
                        sv = ch_malloc( sizeof( ADlist ));
                        sv->al_desc = ad;
                        if ( !svnew ) {
                              svnew = sv;
                        } else {
                              svtail->al_next = sv;
                        }
                        svtail = sv;
                  }
                  sv->al_next = NULL;
                  for ( sv = svnew; sv; sv = sv->al_next )
                        sv->al_desc->ad_type->sat_flags |= SLAP_AT_SORTED_VAL;
                  for ( sv = sortVals; sv && sv->al_next; sv = sv->al_next );
                  if ( sv )
                        sv->al_next = svnew;
                  else
                        sortVals = svnew;
                  }
                  break;

            case CFG_ACL:
                  /* Don't append to the global ACL if we're on a specific DB */
                  i = c->valx;
                  if ( c->be != frontendDB && frontendDB->be_acl && c->valx == -1 ) {
                        AccessControl *a;
                        i = 0;
                        for ( a=c->be->be_acl; a && a != frontendDB->be_acl;
                              a = a->acl_next )
                              i++;
                  }
                  if ( parse_acl(c->be, c->fname, c->lineno, c->argc, c->argv, i ) ) {
                        return 1;
                  }
                  break;

            case CFG_ROOTDSE:
                  if(root_dse_read_file(c->argv[1])) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> could not read file", c->argv[0] );
                        Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                              c->log, c->cr_msg, c->argv[1] );
                        return(1);
                  }
                  {
                        struct berval bv;
                        ber_str2bv( c->argv[1], 0, 1, &bv );
                        if ( c->op == LDAP_MOD_ADD && c->ca_private && cfn != c->ca_private )
                              cfn = c->ca_private;
                        ber_bvarray_add( &cfn->c_dseFiles, &bv );
                  }
                  break;

            case CFG_SERVERID:
                  {
                        ServerID *si, **sip;
                        LDAPURLDesc *lud;
                        int num;
                        if ( lutil_atoi( &num, c->argv[1] ) ||
                              num < 0 || num > SLAP_SYNC_SID_MAX )
                        {
                              snprintf( c->cr_msg, sizeof( c->cr_msg ),
                                    "<%s> illegal server ID", c->argv[0] );
                              Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                                    c->log, c->cr_msg, c->argv[1] );
                              return 1;
                        }
                        /* only one value allowed if no URL is given */
                        if ( c->argc > 2 ) {
                              int len;

                              if ( sid_list && BER_BVISEMPTY( &sid_list->si_url )) {
                                    snprintf( c->cr_msg, sizeof( c->cr_msg ),
                                          "<%s> only one server ID allowed now", c->argv[0] );
                                    Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                                          c->log, c->cr_msg, c->argv[1] );
                                    return 1;
                              }

                              if ( ldap_url_parse( c->argv[2], &lud )) {
                                    snprintf( c->cr_msg, sizeof( c->cr_msg ),
                                          "<%s> invalid URL", c->argv[0] );
                                    Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                                          c->log, c->cr_msg, c->argv[2] );
                                    return 1;
                              }
                              len = strlen( c->argv[2] );
                              si = ch_malloc( sizeof(ServerID) + len + 1 );
                              si->si_url.bv_val = (char *)(si+1);
                              si->si_url.bv_len = len;
                              strcpy( si->si_url.bv_val, c->argv[2] );
                        } else {
                              if ( sid_list ) {
                                    snprintf( c->cr_msg, sizeof( c->cr_msg ),
                                          "<%s> unqualified server ID not allowed now", c->argv[0] );
                                    Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                                          c->log, c->cr_msg, c->argv[1] );
                                    return 1;
                              }
                              si = ch_malloc( sizeof(ServerID) );
                              BER_BVZERO( &si->si_url );
                              slap_serverID = num;
                              Debug( LDAP_DEBUG_CONFIG,
                                    "%s: SID=%d\n",
                                    c->log, slap_serverID, 0 );
                        }
                        si->si_next = NULL;
                        si->si_num = num;
                        for ( sip = &sid_list; *sip; sip = &(*sip)->si_next );
                        *sip = si;

                        if (( slapMode & SLAP_SERVER_MODE ) && c->argc > 2 ) {
                              /* If hostname is empty, or is localhost, or matches
                               * our hostname, this serverID refers to this host.
                               * Compare it against listeners and ports.
                               */
                              if ( !lud->lud_host || !lud->lud_host[0] ||
                                    !strncasecmp("localhost", lud->lud_host,
                                          STRLENOF("localhost")) ||
                                    !strcasecmp( global_host, lud->lud_host )) {
                                    Listener **l = slapd_get_listeners();
                                    int i;

                                    for ( i=0; l[i]; i++ ) {
                                          LDAPURLDesc *lu2;
                                          int isMe = 0;
                                          ldap_url_parse( l[i]->sl_url.bv_val, &lu2 );
                                          do {
                                                if ( strcasecmp( lud->lud_scheme,
                                                      lu2->lud_scheme ))
                                                      break;
                                                if ( lud->lud_port != lu2->lud_port )
                                                      break;
                                                /* Listener on ANY address */
                                                if ( !lu2->lud_host || !lu2->lud_host[0] ) {
                                                      isMe = 1;
                                                      break;
                                                }
                                                /* URL on ANY address */
                                                if ( !lud->lud_host || !lud->lud_host[0] ) {
                                                      isMe = 1;
                                                      break;
                                                }
                                                /* Listener has specific host, must
                                                 * match it
                                                 */
                                                if ( !strcasecmp( lud->lud_host,
                                                      lu2->lud_host )) {
                                                      isMe = 1;
                                                      break;
                                                }
                                          } while(0);
                                          ldap_free_urldesc( lu2 );
                                          if ( isMe ) {
                                                slap_serverID = si->si_num;
                                                Debug( LDAP_DEBUG_CONFIG,
                                                      "%s: SID=%d (listener=%s)\n",
                                                      c->log, slap_serverID,
                                                      l[i]->sl_url.bv_val );
                                                break;
                                          }
                                    }
                              }
                        }
                        if ( c->argc > 2 )
                              ldap_free_urldesc( lud );
                  }
                  break;
            case CFG_LOGFILE: {
                        if ( logfileName ) ch_free( logfileName );
                        logfileName = c->value_string;
                        logfile = fopen(logfileName, "w");
                        if(logfile) lutil_debug_file(logfile);
                  } break;

            case CFG_LASTMOD:
                  if(SLAP_NOLASTMODCMD(c->be)) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> not available for %s database",
                              c->argv[0], c->be->bd_info->bi_type );
                        Debug(LDAP_DEBUG_ANY, "%s: %s\n",
                              c->log, c->cr_msg, 0 );
                        return(1);
                  }
                  if(c->value_int)
                        SLAP_DBFLAGS(c->be) &= ~SLAP_DBFLAG_NOLASTMOD;
                  else
                        SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NOLASTMOD;
                  break;

            case CFG_MIRRORMODE:
                  if(!SLAP_SHADOW(c->be)) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> database is not a shadow",
                              c->argv[0] );
                        Debug(LDAP_DEBUG_ANY, "%s: %s\n",
                              c->log, c->cr_msg, 0 );
                        return(1);
                  }
                  if(c->value_int)
                        SLAP_DBFLAGS(c->be) &= ~SLAP_DBFLAG_SINGLE_SHADOW;
                  else
                        SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_SINGLE_SHADOW;
                  break;

            case CFG_MONITORING:
                  if(c->value_int)
                        SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_MONITORING;
                  else
                        SLAP_DBFLAGS(c->be) &= ~SLAP_DBFLAG_MONITORING;
                  break;

            case CFG_HIDDEN:
                  if (c->value_int)
                        SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_HIDDEN;
                  else
                        SLAP_DBFLAGS(c->be) &= ~SLAP_DBFLAG_HIDDEN;
                  break;

            case CFG_SSTR_IF_MAX:
                  if (c->value_int < index_substr_if_minlen) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid value", c->argv[0] );
                        Debug(LDAP_DEBUG_ANY, "%s: %s (%d)\n",
                              c->log, c->cr_msg, c->value_int );
                        return(1);
                  }
                  index_substr_if_maxlen = c->value_int;
                  break;

            case CFG_SSTR_IF_MIN:
                  if (c->value_int > index_substr_if_maxlen) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid value", c->argv[0] );
                        Debug(LDAP_DEBUG_ANY, "%s: %s (%d)\n",
                              c->log, c->cr_msg, c->value_int );
                        return(1);
                  }
                  index_substr_if_minlen = c->value_int;
                  break;

#ifdef SLAPD_MODULES
            case CFG_MODLOAD:
                  /* If we're just adding a module on an existing modpath,
                   * make sure we've selected the current path.
                   */
                  if ( c->op == LDAP_MOD_ADD && c->ca_private && modcur != c->ca_private ) {
                        modcur = c->ca_private;
                        /* This should never fail */
                        if ( module_path( modcur->mp_path.bv_val )) {
                              snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> module path no longer valid",
                                    c->argv[0] );
                              Debug(LDAP_DEBUG_ANY, "%s: %s (%s)\n",
                                    c->log, c->cr_msg, modcur->mp_path.bv_val );
                              return(1);
                        }
                  }
                  if(module_load(c->argv[1], c->argc - 2, (c->argc > 2) ? c->argv + 2 : NULL))
                        return(1);
                  /* Record this load on the current path */
                  {
                        struct berval bv;
                        char *ptr;
                        if ( c->op == SLAP_CONFIG_ADD ) {
                              ptr = c->line + STRLENOF("moduleload");
                              while (!isspace((unsigned char) *ptr)) ptr++;
                              while (isspace((unsigned char) *ptr)) ptr++;
                        } else {
                              ptr = c->line;
                        }
                        ber_str2bv(ptr, 0, 1, &bv);
                        ber_bvarray_add( &modcur->mp_loads, &bv );
                  }
                  /* Check for any new hardcoded schema */
                  if ( c->op == LDAP_MOD_ADD && CONFIG_ONLINE_ADD( c )) {
                        config_check_schema( NULL, &cfBackInfo );
                  }
                  break;

            case CFG_MODPATH:
                  if(module_path(c->argv[1])) return(1);
                  /* Record which path was used with each module */
                  {
                        ModPaths *mp;

                        if (!modpaths.mp_loads) {
                              mp = &modpaths;
                        } else {
                              mp = ch_malloc( sizeof( ModPaths ));
                              modlast->mp_next = mp;
                        }
                        ber_str2bv(c->argv[1], 0, 1, &mp->mp_path);
                        mp->mp_next = NULL;
                        mp->mp_loads = NULL;
                        modlast = mp;
                        c->ca_private = mp;
                        modcur = mp;
                  }
                  
                  break;
#endif

#ifdef LDAP_SLAPI
            case CFG_PLUGIN:
                  if(slapi_int_read_config(c->be, c->fname, c->lineno, c->argc, c->argv) != LDAP_SUCCESS)
                        return(1);
                  slapi_plugins_used++;
                  break;
#endif

#ifdef SLAP_AUTH_REWRITE
            case CFG_REWRITE: {
                  struct berval bv;
                  char *line;
                  
                  if(slap_sasl_rewrite_config(c->fname, c->lineno, c->argc, c->argv))
                        return(1);

                  if ( c->argc > 1 ) {
                        char  *s;

                        /* quote all args but the first */
                        line = ldap_charray2str( c->argv, "\" \"" );
                        ber_str2bv( line, 0, 0, &bv );
                        s = ber_bvchr( &bv, '"' );
                        assert( s != NULL );
                        /* move the trailing quote of argv[0] to the end */
                        AC_MEMCPY( s, s + 1, bv.bv_len - ( s - bv.bv_val ) );
                        bv.bv_val[ bv.bv_len - 1 ] = '"';

                  } else {
                        ber_str2bv( c->argv[ 0 ], 0, 1, &bv );
                  }
                  
                  ber_bvarray_add( &authz_rewrites, &bv );
                  }
                  break;
#endif


            default:
                  Debug( LDAP_DEBUG_ANY,
                        "%s: unknown CFG_TYPE %d.\n",
                        c->log, c->type, 0 );
                  return 1;

      }
      return(0);
}


static int
config_fname(ConfigArgs *c) {
      if(c->op == SLAP_CONFIG_EMIT) {
            if (c->ca_private) {
                  ConfigFile *cf = c->ca_private;
                  value_add_one( &c->rvalue_vals, &cf->c_file );
                  return 0;
            }
            return 1;
      }
      return(0);
}

static int
config_cfdir(ConfigArgs *c) {
      if(c->op == SLAP_CONFIG_EMIT) {
            if ( !BER_BVISEMPTY( &cfdir )) {
                  value_add_one( &c->rvalue_vals, &cfdir );
                  return 0;
            }
            return 1;
      }
      return(0);
}

static int
config_search_base(ConfigArgs *c) {
      if(c->op == SLAP_CONFIG_EMIT) {
            int rc = 1;
            if (!BER_BVISEMPTY(&default_search_base)) {
                  value_add_one(&c->rvalue_vals, &default_search_base);
                  value_add_one(&c->rvalue_nvals, &default_search_nbase);
                  rc = 0;
            }
            return rc;
      } else if( c->op == LDAP_MOD_DELETE ) {
            ch_free( default_search_base.bv_val );
            ch_free( default_search_nbase.bv_val );
            BER_BVZERO( &default_search_base );
            BER_BVZERO( &default_search_nbase );
            return 0;
      }

      if(c->bi || c->be != frontendDB) {
            Debug(LDAP_DEBUG_ANY, "%s: defaultSearchBase line must appear "
                  "prior to any backend or database definition\n",
                  c->log, 0, 0);
            return(1);
      }

      if(default_search_nbase.bv_len) {
            free(default_search_base.bv_val);
            free(default_search_nbase.bv_val);
      }

      default_search_base = c->value_dn;
      default_search_nbase = c->value_ndn;
      return(0);
}

/* For RE23 compatibility we allow this in the global entry
 * but we now defer it to the frontend entry to allow modules
 * to load new hash types.
 */
static int
config_passwd_hash(ConfigArgs *c) {
      int i;
      if (c->op == SLAP_CONFIG_EMIT) {
            struct berval bv;
            /* Don't generate it in the global entry */
            if ( c->table == Cft_Global )
                  return 1;
            for (i=0; default_passwd_hash && default_passwd_hash[i]; i++) {
                  ber_str2bv(default_passwd_hash[i], 0, 0, &bv);
                  value_add_one(&c->rvalue_vals, &bv);
            }
            return i ? 0 : 1;
      } else if ( c->op == LDAP_MOD_DELETE ) {
            /* Deleting from global is a no-op, only the frontendDB entry matters */
            if ( c->table == Cft_Global )
                  return 0;
            if ( c->valx < 0 ) {
                  ldap_charray_free( default_passwd_hash );
                  default_passwd_hash = NULL;
            } else {
                  i = c->valx;
                  ch_free( default_passwd_hash[i] );
                  for (; default_passwd_hash[i]; i++ )
                        default_passwd_hash[i] = default_passwd_hash[i+1];
            }
            return 0;
      }
      for(i = 1; i < c->argc; i++) {
            if(!lutil_passwd_scheme(c->argv[i])) {
                  snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> scheme not available", c->argv[0] );
                  Debug(LDAP_DEBUG_ANY, "%s: %s (%s)\n",
                        c->log, c->cr_msg, c->argv[i]);
            } else {
                  ldap_charray_add(&default_passwd_hash, c->argv[i]);
            }
      }
      if(!default_passwd_hash) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> no valid hashes found", c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s\n",
                  c->log, c->cr_msg, 0 );
            return(1);
      }
      return(0);
}

static int
config_schema_dn(ConfigArgs *c) {
      if ( c->op == SLAP_CONFIG_EMIT ) {
            int rc = 1;
            if ( !BER_BVISEMPTY( &c->be->be_schemadn )) {
                  value_add_one(&c->rvalue_vals, &c->be->be_schemadn);
                  value_add_one(&c->rvalue_nvals, &c->be->be_schemandn);
                  rc = 0;
            }
            return rc;
      } else if ( c->op == LDAP_MOD_DELETE ) {
            ch_free( c->be->be_schemadn.bv_val );
            ch_free( c->be->be_schemandn.bv_val );
            BER_BVZERO( &c->be->be_schemadn );
            BER_BVZERO( &c->be->be_schemandn );
            return 0;
      }
      ch_free( c->be->be_schemadn.bv_val );
      ch_free( c->be->be_schemandn.bv_val );
      c->be->be_schemadn = c->value_dn;
      c->be->be_schemandn = c->value_ndn;
      return(0);
}

static int
config_sizelimit(ConfigArgs *c) {
      int i, rc = 0;
      struct slap_limits_set *lim = &c->be->be_def_limit;
      if (c->op == SLAP_CONFIG_EMIT) {
            char buf[8192];
            struct berval bv;
            bv.bv_val = buf;
            bv.bv_len = 0;
            limits_unparse_one( lim, SLAP_LIMIT_SIZE, &bv, sizeof( buf ) );
            if ( !BER_BVISEMPTY( &bv ))
                  value_add_one( &c->rvalue_vals, &bv );
            else
                  rc = 1;
            return rc;
      } else if ( c->op == LDAP_MOD_DELETE ) {
            /* Reset to defaults */
            lim->lms_s_soft = SLAPD_DEFAULT_SIZELIMIT;
            lim->lms_s_hard = 0;
            lim->lms_s_unchecked = -1;
            lim->lms_s_pr = 0;
            lim->lms_s_pr_hide = 0;
            lim->lms_s_pr_total = 0;
            return 0;
      }
      for(i = 1; i < c->argc; i++) {
            if(!strncasecmp(c->argv[i], "size", 4)) {
                  rc = limits_parse_one(c->argv[i], lim);
                  if ( rc ) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unable to parse value", c->argv[0] );
                        Debug(LDAP_DEBUG_ANY, "%s: %s \"%s\"\n",
                              c->log, c->cr_msg, c->argv[i]);
                        return(1);
                  }
            } else {
                  if(!strcasecmp(c->argv[i], "unlimited")) {
                        lim->lms_s_soft = -1;
                  } else {
                        if ( lutil_atoix( &lim->lms_s_soft, c->argv[i], 0 ) != 0 ) {
                              snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unable to parse limit", c->argv[0]);
                              Debug(LDAP_DEBUG_ANY, "%s: %s \"%s\"\n",
                                    c->log, c->cr_msg, c->argv[i]);
                              return(1);
                        }
                  }
                  lim->lms_s_hard = 0;
            }
      }
      return(0);
}

static int
config_timelimit(ConfigArgs *c) {
      int i, rc = 0;
      struct slap_limits_set *lim = &c->be->be_def_limit;
      if (c->op == SLAP_CONFIG_EMIT) {
            char buf[8192];
            struct berval bv;
            bv.bv_val = buf;
            bv.bv_len = 0;
            limits_unparse_one( lim, SLAP_LIMIT_TIME, &bv, sizeof( buf ) );
            if ( !BER_BVISEMPTY( &bv ))
                  value_add_one( &c->rvalue_vals, &bv );
            else
                  rc = 1;
            return rc;
      } else if ( c->op == LDAP_MOD_DELETE ) {
            /* Reset to defaults */
            lim->lms_t_soft = SLAPD_DEFAULT_TIMELIMIT;
            lim->lms_t_hard = 0;
            return 0;
      }
      for(i = 1; i < c->argc; i++) {
            if(!strncasecmp(c->argv[i], "time", 4)) {
                  rc = limits_parse_one(c->argv[i], lim);
                  if ( rc ) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unable to parse value", c->argv[0] );
                        Debug(LDAP_DEBUG_ANY, "%s: %s \"%s\"\n",
                              c->log, c->cr_msg, c->argv[i]);
                        return(1);
                  }
            } else {
                  if(!strcasecmp(c->argv[i], "unlimited")) {
                        lim->lms_t_soft = -1;
                  } else {
                        if ( lutil_atoix( &lim->lms_t_soft, c->argv[i], 0 ) != 0 ) {
                              snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unable to parse limit", c->argv[0]);
                              Debug(LDAP_DEBUG_ANY, "%s: %s \"%s\"\n",
                                    c->log, c->cr_msg, c->argv[i]);
                              return(1);
                        }
                  }
                  lim->lms_t_hard = 0;
            }
      }
      return(0);
}

static int
config_overlay(ConfigArgs *c) {
      if (c->op == SLAP_CONFIG_EMIT) {
            return 1;
      } else if ( c->op == LDAP_MOD_DELETE ) {
            assert(0);
      }
      if(c->argv[1][0] == '-' && overlay_config(c->be, &c->argv[1][1],
            c->valx, &c->bi, &c->reply)) {
            /* log error */
            Debug( LDAP_DEBUG_ANY,
                  "%s: (optional) %s overlay \"%s\" configuration failed.\n",
                  c->log, c->be == frontendDB ? "global " : "", &c->argv[1][1]);
            return 1;
      } else if(overlay_config(c->be, c->argv[1], c->valx, &c->bi, &c->reply)) {
            return(1);
      }
      return(0);
}

static int
config_subordinate(ConfigArgs *c)
{
      int rc = 1;
      int advertise;

      switch( c->op ) {
      case SLAP_CONFIG_EMIT:
            if ( SLAP_GLUE_SUBORDINATE( c->be )) {
                  struct berval bv;

                  bv.bv_val = SLAP_GLUE_ADVERTISE( c->be ) ? "advertise" : "TRUE";
                  bv.bv_len = SLAP_GLUE_ADVERTISE( c->be ) ? STRLENOF("advertise") :
                        STRLENOF("TRUE");

                  value_add_one( &c->rvalue_vals, &bv );
                  rc = 0;
            }
            break;
      case LDAP_MOD_DELETE:
            if ( !c->line  || strcasecmp( c->line, "advertise" )) {
                  glue_sub_del( c->be );
            } else {
                  SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_GLUE_ADVERTISE;
            }
            rc = 0;
            break;
      case LDAP_MOD_ADD:
      case SLAP_CONFIG_ADD:
            advertise = ( c->argc == 2 && !strcasecmp( c->argv[1], "advertise" ));
            rc = glue_sub_add( c->be, advertise, CONFIG_ONLINE_ADD( c ));
            break;
      }
      return rc;
}

static int
config_suffix(ConfigArgs *c)
{
      Backend *tbe;
      struct berval pdn, ndn;
      char  *notallowed = NULL;

      if ( c->be == frontendDB ) {
            notallowed = "frontend";

      } else if ( SLAP_MONITOR(c->be) ) {
            notallowed = "monitor";

      } else if ( SLAP_CONFIG(c->be) ) {
            notallowed = "config";
      }

      if ( notallowed != NULL ) {
            char  buf[ SLAP_TEXT_BUFLEN ] = { '\0' };

            switch ( c->op ) {
            case LDAP_MOD_ADD:
            case LDAP_MOD_DELETE:
            case LDAP_MOD_REPLACE:
            case LDAP_MOD_INCREMENT:
            case SLAP_CONFIG_ADD:
                  if ( !BER_BVISNULL( &c->value_dn ) ) {
                        snprintf( buf, sizeof( buf ), "<%s> ",
                                    c->value_dn.bv_val );
                  }

                  Debug(LDAP_DEBUG_ANY,
                        "%s: suffix %snot allowed in %s database.\n",
                        c->log, buf, notallowed );
                  break;

            case SLAP_CONFIG_EMIT:
                  /* don't complain when emitting... */
                  break;

            default:
                  /* FIXME: don't know what values may be valid;
                   * please remove assertion, or add legal values
                   * to either block */
                  assert( 0 );
                  break;
            }

            return 1;
      }

      if (c->op == SLAP_CONFIG_EMIT) {
            if ( c->be->be_suffix == NULL
                        || BER_BVISNULL( &c->be->be_suffix[0] ) )
            {
                  return 1;
            } else {
                  value_add( &c->rvalue_vals, c->be->be_suffix );
                  value_add( &c->rvalue_nvals, c->be->be_nsuffix );
                  return 0;
            }
      } else if ( c->op == LDAP_MOD_DELETE ) {
            if ( c->valx < 0 ) {
                  ber_bvarray_free( c->be->be_suffix );
                  ber_bvarray_free( c->be->be_nsuffix );
                  c->be->be_suffix = NULL;
                  c->be->be_nsuffix = NULL;
            } else {
                  int i = c->valx;
                  ch_free( c->be->be_suffix[i].bv_val );
                  ch_free( c->be->be_nsuffix[i].bv_val );
                  do {
                        c->be->be_suffix[i] = c->be->be_suffix[i+1];
                        c->be->be_nsuffix[i] = c->be->be_nsuffix[i+1];
                        i++;
                  } while ( !BER_BVISNULL( &c->be->be_suffix[i] ) );
            }
            return 0;
      }

#ifdef SLAPD_MONITOR_DN
      if(!strcasecmp(c->argv[1], SLAPD_MONITOR_DN)) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> DN is reserved for monitoring slapd",
                  c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s (%s)\n",
                  c->log, c->cr_msg, SLAPD_MONITOR_DN);
            return(1);
      }
#endif

      if (SLAP_DB_ONE_SUFFIX( c->be ) && c->be->be_suffix ) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> Only one suffix is allowed on this %s backend",
                  c->argv[0], c->be->bd_info->bi_type );
            Debug(LDAP_DEBUG_ANY, "%s: %s\n",
                  c->log, c->cr_msg, 0);
            return(1);
      }

      pdn = c->value_dn;
      ndn = c->value_ndn;

      if (SLAP_DBHIDDEN( c->be ))
            tbe = NULL;
      else
            tbe = select_backend(&ndn, 0);
      if(tbe == c->be) {
            Debug( LDAP_DEBUG_ANY, "%s: suffix already served by this backend!.\n",
                  c->log, 0, 0);
            return 1;
            free(pdn.bv_val);
            free(ndn.bv_val);
      } else if(tbe) {
            BackendDB *b2 = tbe;

            /* Does tbe precede be? */
            while (( b2 = LDAP_STAILQ_NEXT(b2, be_next )) && b2 && b2 != c->be );

            if ( b2 ) {
                  char  *type = tbe->bd_info->bi_type;

                  if ( overlay_is_over( tbe ) ) {
                        slap_overinfo     *oi = (slap_overinfo *)tbe->bd_info->bi_private;
                        type = oi->oi_orig->bi_type;
                  }

                  snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> namingContext \"%s\" "
                        "already served by a preceding %s database",
                        c->argv[0], pdn.bv_val, type );
                  Debug(LDAP_DEBUG_ANY, "%s: %s serving namingContext \"%s\"\n",
                        c->log, c->cr_msg, tbe->be_suffix[0].bv_val);
                  free(pdn.bv_val);
                  free(ndn.bv_val);
                  return(1);
            }
      }
      if(pdn.bv_len == 0 && default_search_nbase.bv_len) {
            Debug(LDAP_DEBUG_ANY, "%s: suffix DN empty and default search "
                  "base provided \"%s\" (assuming okay)\n",
                  c->log, default_search_base.bv_val, 0);
      }
      ber_bvarray_add(&c->be->be_suffix, &pdn);
      ber_bvarray_add(&c->be->be_nsuffix, &ndn);
      return(0);
}

static int
config_rootdn(ConfigArgs *c) {
      if (c->op == SLAP_CONFIG_EMIT) {
            if ( !BER_BVISNULL( &c->be->be_rootdn )) {
                  value_add_one(&c->rvalue_vals, &c->be->be_rootdn);
                  value_add_one(&c->rvalue_nvals, &c->be->be_rootndn);
                  return 0;
            } else {
                  return 1;
            }
      } else if ( c->op == LDAP_MOD_DELETE ) {
            ch_free( c->be->be_rootdn.bv_val );
            ch_free( c->be->be_rootndn.bv_val );
            BER_BVZERO( &c->be->be_rootdn );
            BER_BVZERO( &c->be->be_rootndn );
            return 0;
      }
      if ( !BER_BVISNULL( &c->be->be_rootdn )) {
            ch_free( c->be->be_rootdn.bv_val );
            ch_free( c->be->be_rootndn.bv_val );
      }
      c->be->be_rootdn = c->value_dn;
      c->be->be_rootndn = c->value_ndn;
      return(0);
}

static int
config_rootpw(ConfigArgs *c) {
      Backend *tbe;

      if (c->op == SLAP_CONFIG_EMIT) {
            if (!BER_BVISEMPTY(&c->be->be_rootpw)) {
                  /* don't copy, because "rootpw" is marked
                   * as CFG_BERVAL */
                  c->value_bv = c->be->be_rootpw;
                  return 0;
            }
            return 1;
      } else if ( c->op == LDAP_MOD_DELETE ) {
            ch_free( c->be->be_rootpw.bv_val );
            BER_BVZERO( &c->be->be_rootpw );
            return 0;
      }

      tbe = select_backend(&c->be->be_rootndn, 0);
      if(tbe != c->be) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> can only be set when rootdn is under suffix",
                  c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s\n",
                  c->log, c->cr_msg, 0);
            return(1);
      }
      if ( !BER_BVISNULL( &c->be->be_rootpw ))
            ch_free( c->be->be_rootpw.bv_val );
      c->be->be_rootpw = c->value_bv;
      return(0);
}

static int
config_restrict(ConfigArgs *c) {
      slap_mask_t restrictops = 0;
      int i;
      slap_verbmasks restrictable_ops[] = {
            { BER_BVC("bind"),            SLAP_RESTRICT_OP_BIND },
            { BER_BVC("add"),       SLAP_RESTRICT_OP_ADD },
            { BER_BVC("modify"),          SLAP_RESTRICT_OP_MODIFY },
            { BER_BVC("rename"),          SLAP_RESTRICT_OP_RENAME },
            { BER_BVC("modrdn"),          0 },
            { BER_BVC("delete"),          SLAP_RESTRICT_OP_DELETE },
            { BER_BVC("search"),          SLAP_RESTRICT_OP_SEARCH },
            { BER_BVC("compare"),         SLAP_RESTRICT_OP_COMPARE },
            { BER_BVC("read"),            SLAP_RESTRICT_OP_READS },
            { BER_BVC("write"),           SLAP_RESTRICT_OP_WRITES },
            { BER_BVC("extended"),        SLAP_RESTRICT_OP_EXTENDED },
            { BER_BVC("extended=" LDAP_EXOP_START_TLS ),          SLAP_RESTRICT_EXOP_START_TLS },
            { BER_BVC("extended=" LDAP_EXOP_MODIFY_PASSWD ),      SLAP_RESTRICT_EXOP_MODIFY_PASSWD },
            { BER_BVC("extended=" LDAP_EXOP_X_WHO_AM_I ),         SLAP_RESTRICT_EXOP_WHOAMI },
            { BER_BVC("extended=" LDAP_EXOP_X_CANCEL ),           SLAP_RESTRICT_EXOP_CANCEL },
            { BER_BVC("all"),       SLAP_RESTRICT_OP_ALL },
            { BER_BVNULL,     0 }
      };

      if (c->op == SLAP_CONFIG_EMIT) {
            return mask_to_verbs( restrictable_ops, c->be->be_restrictops,
                  &c->rvalue_vals );
      } else if ( c->op == LDAP_MOD_DELETE ) {
            if ( !c->line ) {
                  c->be->be_restrictops = 0;
            } else {
                  restrictops = verb_to_mask( c->line, restrictable_ops );
                  c->be->be_restrictops ^= restrictops;
            }
            return 0;
      }
      i = verbs_to_mask( c->argc, c->argv, restrictable_ops, &restrictops );
      if ( i ) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unknown operation", c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                  c->log, c->cr_msg, c->argv[i]);
            return(1);
      }
      if ( restrictops & SLAP_RESTRICT_OP_EXTENDED )
            restrictops &= ~SLAP_RESTRICT_EXOP_MASK;
      c->be->be_restrictops |= restrictops;
      return(0);
}

static int
config_allows(ConfigArgs *c) {
      slap_mask_t allows = 0;
      int i;
      slap_verbmasks allowable_ops[] = {
            { BER_BVC("bind_v2"),         SLAP_ALLOW_BIND_V2 },
            { BER_BVC("bind_anon_cred"),  SLAP_ALLOW_BIND_ANON_CRED },
            { BER_BVC("bind_anon_dn"),    SLAP_ALLOW_BIND_ANON_DN },
            { BER_BVC("update_anon"),     SLAP_ALLOW_UPDATE_ANON },
            { BER_BVC("proxy_authz_anon"),      SLAP_ALLOW_PROXY_AUTHZ_ANON },
            { BER_BVNULL,     0 }
      };
      if (c->op == SLAP_CONFIG_EMIT) {
            return mask_to_verbs( allowable_ops, global_allows, &c->rvalue_vals );
      } else if ( c->op == LDAP_MOD_DELETE ) {
            if ( !c->line ) {
                  global_allows = 0;
            } else {
                  allows = verb_to_mask( c->line, allowable_ops );
                  global_allows ^= allows;
            }
            return 0;
      }
      i = verbs_to_mask(c->argc, c->argv, allowable_ops, &allows);
      if ( i ) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unknown feature", c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                  c->log, c->cr_msg, c->argv[i]);
            return(1);
      }
      global_allows |= allows;
      return(0);
}

static int
config_disallows(ConfigArgs *c) {
      slap_mask_t disallows = 0;
      int i;
      slap_verbmasks disallowable_ops[] = {
            { BER_BVC("bind_anon"),       SLAP_DISALLOW_BIND_ANON },
            { BER_BVC("bind_simple"),     SLAP_DISALLOW_BIND_SIMPLE },
            { BER_BVC("tls_2_anon"),            SLAP_DISALLOW_TLS_2_ANON },
            { BER_BVC("tls_authc"),       SLAP_DISALLOW_TLS_AUTHC },
            { BER_BVNULL, 0 }
      };
      if (c->op == SLAP_CONFIG_EMIT) {
            return mask_to_verbs( disallowable_ops, global_disallows, &c->rvalue_vals );
      } else if ( c->op == LDAP_MOD_DELETE ) {
            if ( !c->line ) {
                  global_disallows = 0;
            } else {
                  disallows = verb_to_mask( c->line, disallowable_ops );
                  global_disallows ^= disallows;
            }
            return 0;
      }
      i = verbs_to_mask(c->argc, c->argv, disallowable_ops, &disallows);
      if ( i ) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unknown feature", c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                  c->log, c->cr_msg, c->argv[i]);
            return(1);
      }
      global_disallows |= disallows;
      return(0);
}

static int
config_requires(ConfigArgs *c) {
      slap_mask_t requires = frontendDB->be_requires;
      int i, argc = c->argc;
      char **argv = c->argv;

      slap_verbmasks requires_ops[] = {
            { BER_BVC("bind"),            SLAP_REQUIRE_BIND },
            { BER_BVC("LDAPv3"),          SLAP_REQUIRE_LDAP_V3 },
            { BER_BVC("authc"),           SLAP_REQUIRE_AUTHC },
            { BER_BVC("sasl"),            SLAP_REQUIRE_SASL },
            { BER_BVC("strong"),          SLAP_REQUIRE_STRONG },
            { BER_BVNULL, 0 }
      };
      if (c->op == SLAP_CONFIG_EMIT) {
            return mask_to_verbs( requires_ops, c->be->be_requires, &c->rvalue_vals );
      } else if ( c->op == LDAP_MOD_DELETE ) {
            if ( !c->line ) {
                  c->be->be_requires = 0;
            } else {
                  requires = verb_to_mask( c->line, requires_ops );
                  c->be->be_requires ^= requires;
            }
            return 0;
      }
      /* "none" can only be first, to wipe out default/global values */
      if ( strcasecmp( c->argv[ 1 ], "none" ) == 0 ) {
            argv++;
            argc--;
            requires = 0;
      }
      i = verbs_to_mask(argc, argv, requires_ops, &requires);
      if ( i ) {
            if (strcasecmp( c->argv[ i ], "none" ) == 0 ) {
                  snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> \"none\" (#%d) must be listed first", c->argv[0], i - 1 );
                  Debug(LDAP_DEBUG_ANY, "%s: %s\n",
                        c->log, c->cr_msg, 0);
            } else {
                  snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unknown feature #%d", c->argv[0], i - 1 );
                  Debug(LDAP_DEBUG_ANY, "%s: %s \"%s\"\n",
                        c->log, c->cr_msg, c->argv[i]);
            }
            return(1);
      }
      c->be->be_requires = requires;
      return(0);
}

static slap_verbmasks   *loglevel_ops;

static int
loglevel_init( void )
{
      slap_verbmasks    lo[] = {
            { BER_BVC("Any"), -1 },
            { BER_BVC("Trace"),     LDAP_DEBUG_TRACE },
            { BER_BVC("Packets"),   LDAP_DEBUG_PACKETS },
            { BER_BVC("Args"),      LDAP_DEBUG_ARGS },
            { BER_BVC("Conns"),     LDAP_DEBUG_CONNS },
            { BER_BVC("BER"), LDAP_DEBUG_BER },
            { BER_BVC("Filter"),    LDAP_DEBUG_FILTER },
            { BER_BVC("Config"),    LDAP_DEBUG_CONFIG },
            { BER_BVC("ACL"), LDAP_DEBUG_ACL },
            { BER_BVC("Stats"),     LDAP_DEBUG_STATS },
            { BER_BVC("Stats2"),    LDAP_DEBUG_STATS2 },
            { BER_BVC("Shell"),     LDAP_DEBUG_SHELL },
            { BER_BVC("Parse"),     LDAP_DEBUG_PARSE },
#if 0 /* no longer used (nor supported) */
            { BER_BVC("Cache"),     LDAP_DEBUG_CACHE },
            { BER_BVC("Index"),     LDAP_DEBUG_INDEX },
#endif
            { BER_BVC("Sync"),      LDAP_DEBUG_SYNC },
            { BER_BVC("None"),      LDAP_DEBUG_NONE },
            { BER_BVNULL,           0 }
      };

      return slap_verbmasks_init( &loglevel_ops, lo );
}

static void
loglevel_destroy( void )
{
      if ( loglevel_ops ) {
            (void)slap_verbmasks_destroy( loglevel_ops );
      }
      loglevel_ops = NULL;
}

static slap_mask_t      loglevel_ignore[] = { -1, 0 };

int
slap_loglevel_register( slap_mask_t m, struct berval *s )
{
      int   rc;

      if ( loglevel_ops == NULL ) {
            loglevel_init();
      }

      rc = slap_verbmasks_append( &loglevel_ops, m, s, loglevel_ignore );

      if ( rc != 0 ) {
            Debug( LDAP_DEBUG_ANY, "slap_loglevel_register(%lu, \"%s\") failed\n",
                  m, s->bv_val, 0 );
      }

      return rc;
}

int
slap_loglevel_get( struct berval *s, int *l )
{
      int         rc;
      slap_mask_t m, i;

      if ( loglevel_ops == NULL ) {
            loglevel_init();
      }

      for ( m = 0, i = 1; !BER_BVISNULL( &loglevel_ops[ i ].word ); i++ ) {
            m |= loglevel_ops[ i ].mask;
      }

      for ( i = 1; m & i; i <<= 1 )
            ;

      if ( i == 0 ) {
            return -1;
      }

      rc = slap_verbmasks_append( &loglevel_ops, i, s, loglevel_ignore );

      if ( rc != 0 ) {
            Debug( LDAP_DEBUG_ANY, "slap_loglevel_get(%lu, \"%s\") failed\n",
                  i, s->bv_val, 0 );

      } else {
            *l = i;
      }

      return rc;
}

int
str2loglevel( const char *s, int *l )
{
      int   i;

      if ( loglevel_ops == NULL ) {
            loglevel_init();
      }

      i = verb_to_mask( s, loglevel_ops );

      if ( BER_BVISNULL( &loglevel_ops[ i ].word ) ) {
            return -1;
      }

      *l = loglevel_ops[ i ].mask;

      return 0;
}

const char *
loglevel2str( int l )
{
      struct berval     bv = BER_BVNULL;

      loglevel2bv( l, &bv );

      return bv.bv_val;
}

int
loglevel2bv( int l, struct berval *bv )
{
      if ( loglevel_ops == NULL ) {
            loglevel_init();
      }

      BER_BVZERO( bv );

      return enum_to_verb( loglevel_ops, l, bv ) == -1;
}

int
loglevel2bvarray( int l, BerVarray *bva )
{
      if ( loglevel_ops == NULL ) {
            loglevel_init();
      }

      return mask_to_verbs( loglevel_ops, l, bva );
}

int
loglevel_print( FILE *out )
{
      int   i;

      if ( loglevel_ops == NULL ) {
            loglevel_init();
      }

      fprintf( out, "Installed log subsystems:\n\n" );
      for ( i = 0; !BER_BVISNULL( &loglevel_ops[ i ].word ); i++ ) {
            fprintf( out, "\t%-30s (%lu)\n",
                  loglevel_ops[ i ].word.bv_val,
                  loglevel_ops[ i ].mask );
      }

      fprintf( out, "\nNOTE: custom log subsystems may be later installed "
            "by specific code\n\n" );

      return 0;
}

static int config_syslog;

static int
config_loglevel(ConfigArgs *c) {
      int i;

      if ( loglevel_ops == NULL ) {
            loglevel_init();
      }

      if (c->op == SLAP_CONFIG_EMIT) {
            /* Get default or commandline slapd setting */
            if ( ldap_syslog && !config_syslog )
                  config_syslog = ldap_syslog;
            return loglevel2bvarray( config_syslog, &c->rvalue_vals );

      } else if ( c->op == LDAP_MOD_DELETE ) {
            if ( !c->line ) {
                  config_syslog = 0;
            } else {
                  int level = verb_to_mask( c->line, loglevel_ops );
                  config_syslog ^= level;
            }
            if ( slapMode & SLAP_SERVER_MODE ) {
                  ldap_syslog = config_syslog;
            }
            return 0;
      }

      for( i=1; i < c->argc; i++ ) {
            int   level;

            if ( isdigit((unsigned char)c->argv[i][0]) || c->argv[i][0] == '-' ) {
                  if( lutil_atoi( &level, c->argv[i] ) != 0 ) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unable to parse level", c->argv[0] );
                        Debug( LDAP_DEBUG_ANY, "%s: %s \"%s\"\n",
                              c->log, c->cr_msg, c->argv[i]);
                        return( 1 );
                  }
            } else {
                  if ( str2loglevel( c->argv[i], &level ) ) {
                        snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unknown level", c->argv[0] );
                        Debug( LDAP_DEBUG_ANY, "%s: %s \"%s\"\n",
                              c->log, c->cr_msg, c->argv[i]);
                        return( 1 );
                  }
            }
            /* Explicitly setting a zero clears all the levels */
            if ( level )
                  config_syslog |= level;
            else
                  config_syslog = 0;
      }
      if ( slapMode & SLAP_SERVER_MODE ) {
            ldap_syslog = config_syslog;
      }
      return(0);
}

static int
config_referral(ConfigArgs *c) {
      struct berval val;
      if (c->op == SLAP_CONFIG_EMIT) {
            if ( default_referral ) {
                  value_add( &c->rvalue_vals, default_referral );
                  return 0;
            } else {
                  return 1;
            }
      } else if ( c->op == LDAP_MOD_DELETE ) {
            if ( c->valx < 0 ) {
                  ber_bvarray_free( default_referral );
                  default_referral = NULL;
            } else {
                  int i = c->valx;
                  ch_free( default_referral[i].bv_val );
                  for (; default_referral[i].bv_val; i++ )
                        default_referral[i] = default_referral[i+1];
            }
            return 0;
      }
      if(validate_global_referral(c->argv[1])) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid URL", c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s (%s)\n",
                  c->log, c->cr_msg, c->argv[1]);
            return(1);
      }

      ber_str2bv(c->argv[1], 0, 0, &val);
      if(value_add_one(&default_referral, &val)) return(LDAP_OTHER);
      return(0);
}

static struct {
      struct berval key;
      int off;
} sec_keys[] = {
      { BER_BVC("ssf="), offsetof(slap_ssf_set_t, sss_ssf) },
      { BER_BVC("transport="), offsetof(slap_ssf_set_t, sss_transport) },
      { BER_BVC("tls="), offsetof(slap_ssf_set_t, sss_tls) },
      { BER_BVC("sasl="), offsetof(slap_ssf_set_t, sss_sasl) },
      { BER_BVC("update_ssf="), offsetof(slap_ssf_set_t, sss_update_ssf) },
      { BER_BVC("update_transport="), offsetof(slap_ssf_set_t, sss_update_transport) },
      { BER_BVC("update_tls="), offsetof(slap_ssf_set_t, sss_update_tls) },
      { BER_BVC("update_sasl="), offsetof(slap_ssf_set_t, sss_update_sasl) },
      { BER_BVC("simple_bind="), offsetof(slap_ssf_set_t, sss_simple_bind) },
      { BER_BVNULL, 0 }
};

static int
config_security(ConfigArgs *c) {
      slap_ssf_set_t *set = &c->be->be_ssf_set;
      char *next;
      int i, j;
      if (c->op == SLAP_CONFIG_EMIT) {
            char numbuf[32];
            struct berval bv;
            slap_ssf_t *tgt;
            int rc = 1;

            for (i=0; !BER_BVISNULL( &sec_keys[i].key ); i++) {
                  tgt = (slap_ssf_t *)((char *)set + sec_keys[i].off);
                  if ( *tgt ) {
                        rc = 0;
                        bv.bv_len = snprintf( numbuf, sizeof( numbuf ), "%u", *tgt );
                        if ( bv.bv_len >= sizeof( numbuf ) ) {
                              ber_bvarray_free_x( c->rvalue_vals, NULL );
                              c->rvalue_vals = NULL;
                              rc = 1;
                              break;
                        }
                        bv.bv_len += sec_keys[i].key.bv_len;
                        bv.bv_val = ch_malloc( bv.bv_len + 1);
                        next = lutil_strcopy( bv.bv_val, sec_keys[i].key.bv_val );
                        strcpy( next, numbuf );
                        ber_bvarray_add( &c->rvalue_vals, &bv );
                  }
            }
            return rc;
      }
      for(i = 1; i < c->argc; i++) {
            slap_ssf_t *tgt = NULL;
            char *src = NULL;
            for ( j=0; !BER_BVISNULL( &sec_keys[j].key ); j++ ) {
                  if(!strncasecmp(c->argv[i], sec_keys[j].key.bv_val,
                        sec_keys[j].key.bv_len)) {
                        src = c->argv[i] + sec_keys[j].key.bv_len;
                        tgt = (slap_ssf_t *)((char *)set + sec_keys[j].off);
                        break;
                  }
            }
            if ( !tgt ) {
                  snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unknown factor", c->argv[0] );
                  Debug(LDAP_DEBUG_ANY, "%s: %s %s\n",
                        c->log, c->cr_msg, c->argv[i]);
                  return(1);
            }

            if ( lutil_atou( tgt, src ) != 0 ) {
                  snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> unable to parse factor", c->argv[0] );
                  Debug(LDAP_DEBUG_ANY, "%s: %s \"%s\"\n",
                        c->log, c->cr_msg, c->argv[i]);
                  return(1);
            }
      }
      return(0);
}

char *
anlist_unparse( AttributeName *an, char *ptr, ber_len_t buflen ) {
      int comma = 0;
      char *start = ptr;

      for (; !BER_BVISNULL( &an->an_name ); an++) {
            /* if buflen == 0, assume the buffer size has been 
             * already checked otherwise */
            if ( buflen > 0 && buflen - ( ptr - start ) < comma + an->an_name.bv_len ) return NULL;
            if ( comma ) *ptr++ = ',';
            ptr = lutil_strcopy( ptr, an->an_name.bv_val );
            comma = 1;
      }
      return ptr;
}

static int
config_updatedn(ConfigArgs *c) {
      if (c->op == SLAP_CONFIG_EMIT) {
            if (!BER_BVISEMPTY(&c->be->be_update_ndn)) {
                  value_add_one(&c->rvalue_vals, &c->be->be_update_ndn);
                  value_add_one(&c->rvalue_nvals, &c->be->be_update_ndn);
                  return 0;
            }
            return 1;
      } else if ( c->op == LDAP_MOD_DELETE ) {
            ch_free( c->be->be_update_ndn.bv_val );
            BER_BVZERO( &c->be->be_update_ndn );
            SLAP_DBFLAGS(c->be) ^= (SLAP_DBFLAG_SHADOW | SLAP_DBFLAG_SLURP_SHADOW);
            return 0;
      }
      if(SLAP_SHADOW(c->be)) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> database already shadowed", c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s\n",
                  c->log, c->cr_msg, 0);
            return(1);
      }

      ber_memfree_x( c->value_dn.bv_val, NULL );
      if ( !BER_BVISNULL( &c->be->be_update_ndn ) ) {
            ber_memfree_x( c->be->be_update_ndn.bv_val, NULL );
      }
      c->be->be_update_ndn = c->value_ndn;
      BER_BVZERO( &c->value_dn );
      BER_BVZERO( &c->value_ndn );

      return config_slurp_shadow( c );
}

int
config_shadow( ConfigArgs *c, int flag )
{
      char  *notallowed = NULL;

      if ( c->be == frontendDB ) {
            notallowed = "frontend";

      } else if ( SLAP_MONITOR(c->be) ) {
            notallowed = "monitor";
      }

      if ( notallowed != NULL ) {
            Debug( LDAP_DEBUG_ANY, "%s: %s database cannot be shadow.\n", c->log, notallowed, 0 );
            return 1;
      }

      SLAP_DBFLAGS(c->be) |= (SLAP_DBFLAG_SHADOW | SLAP_DBFLAG_SINGLE_SHADOW | flag);

      return 0;
}

static int
config_updateref(ConfigArgs *c) {
      struct berval val;
      if (c->op == SLAP_CONFIG_EMIT) {
            if ( c->be->be_update_refs ) {
                  value_add( &c->rvalue_vals, c->be->be_update_refs );
                  return 0;
            } else {
                  return 1;
            }
      } else if ( c->op == LDAP_MOD_DELETE ) {
            if ( c->valx < 0 ) {
                  ber_bvarray_free( c->be->be_update_refs );
                  c->be->be_update_refs = NULL;
            } else {
                  int i = c->valx;
                  ch_free( c->be->be_update_refs[i].bv_val );
                  for (; c->be->be_update_refs[i].bv_val; i++)
                        c->be->be_update_refs[i] = c->be->be_update_refs[i+1];
            }
            return 0;
      }
      if(!SLAP_SHADOW(c->be) && !c->be->be_syncinfo) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> must appear after syncrepl or updatedn",
                  c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s\n",
                  c->log, c->cr_msg, 0);
            return(1);
      }

      if(validate_global_referral(c->argv[1])) {
            snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid URL", c->argv[0] );
            Debug(LDAP_DEBUG_ANY, "%s: %s (%s)\n",
                  c->log, c->cr_msg, c->argv[1]);
            return(1);
      }
      ber_str2bv(c->argv[1], 0, 0, &val);
      if(value_add_one(&c->be->be_update_refs, &val)) return(LDAP_OTHER);
      return(0);
}

static int
config_obsolete(ConfigArgs *c) {
      if (c->op == SLAP_CONFIG_EMIT)
            return 1;

      snprintf( c->cr_msg, sizeof( c->cr_msg ), "<%s> keyword is obsolete (ignored)",
            c->argv[0] );
      Debug(LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0);
      return(0);
}

static int
config_include(ConfigArgs *c) {
      int savelineno = c->lineno;
      int rc;
      ConfigFile *cf;
      ConfigFile *cfsave = cfn;
      ConfigFile *cf2 = NULL;

      /* Leftover from RE23. No dynamic config for include files */
      if ( c->op == SLAP_CONFIG_EMIT || c->op == LDAP_MOD_DELETE )
            return 1;

      cf = ch_calloc( 1, sizeof(ConfigFile));
      if ( cfn->c_kids ) {
            for (cf2=cfn->c_kids; cf2 && cf2->c_sibs; cf2=cf2->c_sibs) ;
            cf2->c_sibs = cf;
      } else {
            cfn->c_kids = cf;
      }
      cfn = cf;
      ber_str2bv( c->argv[1], 0, 1, &cf->c_file );
      rc = read_config_file(c->argv[1], c->depth + 1, c, config_back_cf_table);
      c->lineno = savelineno - 1;
      cfn = cfsave;
      if ( rc ) {
            if ( cf2 ) cf2->c_sibs = NULL;
            else cfn->c_kids = NULL;
            ch_free( cf->c_file.bv_val );
            ch_free( cf );
      } else {
            c->ca_private = cf;
      }
      return(rc);
}

#ifdef HAVE_TLS
static int
config_tls_option(ConfigArgs *c) {
      int flag;
      LDAP *ld = slap_tls_ld;
      switch(c->type) {
      case CFG_TLS_RAND:      flag = LDAP_OPT_X_TLS_RANDOM_FILE;  ld = NULL; break;
      case CFG_TLS_CIPHER:    flag = LDAP_OPT_X_TLS_CIPHER_SUITE; break;
      case CFG_TLS_CERT_FILE: flag = LDAP_OPT_X_TLS_CERTFILE;           break;      
      case CFG_TLS_CERT_KEY:  flag = LDAP_OPT_X_TLS_KEYFILE;            break;
      case CFG_TLS_CA_PATH:   flag = LDAP_OPT_X_TLS_CACERTDIR;    break;
      case CFG_TLS_CA_FILE:   flag = LDAP_OPT_X_TLS_CACERTFILE;   break;
      case CFG_TLS_DH_FILE:   flag = LDAP_OPT_X_TLS_DHFILE; break;
#ifdef HAVE_GNUTLS
      case CFG_TLS_CRL_FILE:  flag = LDAP_OPT_X_TLS_CRLFILE;      break;
#endif
      default:          Debug(LDAP_DEBUG_ANY, "%s: "
                              "unknown tls_option <0x%x>\n",
                              c->log, c->type, 0);
            return 1;
      }
      if (c->op == SLAP_CONFIG_EMIT) {
            return ldap_pvt_tls_get_option( ld, flag, &c->value_string );
      } else if ( c->op == LDAP_MOD_DELETE ) {
            return ldap_pvt_tls_set_option( ld, flag, NULL );
      }
      ch_free(c->value_string);
      return(ldap_pvt_tls_set_option(ld, flag, c->argv[1]));
}

/* FIXME: this ought to be provided by libldap */
static int
config_tls_config(ConfigArgs *c) {
      int i, flag;
      switch(c->type) {
      case CFG_TLS_CRLCHECK:  flag = LDAP_OPT_X_TLS_CRLCHECK; break;
      case CFG_TLS_VERIFY:    flag = LDAP_OPT_X_TLS_REQUIRE_CERT; break;
      default:
            Debug(LDAP_DEBUG_ANY, "%s: "
                        "unknown tls_option <0x%x>\n",
                        c->log, c->type, 0);
            return 1;
      }
      if (c->op == SLAP_CONFIG_EMIT) {
            return slap_tls_get_config( slap_tls_ld, flag, &c->value_string );
      } else if ( c->op == LDAP_MOD_DELETE ) {
            int i = 0;
            return ldap_pvt_tls_set_option( slap_tls_ld, flag, &i );
      }
      ch_free( c->value_string );
      if ( isdigit( (unsigned char)c->argv[1][0] ) ) {
            if ( lutil_atoi( &i, c->argv[1] ) != 0 ) {
                  Debug(LDAP_DEBUG_ANY, "%s: "
                        "unable to parse %s \"%s\"\n",
                        c->log, c->argv[0], c->argv[1] );
                  return 1;
            }
            return(ldap_pvt_tls_set_option(slap_tls_ld, flag, &i));
      } else {
            return(ldap_int_tls_config(slap_tls_ld, flag, c->argv[1]));
      }
}
#endif

static CfEntryInfo *
config_find_base( CfEntryInfo *root, struct berval *dn, CfEntryInfo **last )
{
      struct berval cdn;
      char *c;

      if ( !root ) {
            *last = NULL;
            return NULL;
      }

      if ( dn_match( &root->ce_entry->e_nname, dn ))
            return root;

      c = dn->bv_val+dn->bv_len;
      for (;*c != ',';c--);

      while(root) {
            *last = root;
            for (--c;c>dn->bv_val && *c != ',';c--);
            cdn.bv_val = c;
            if ( *c == ',' )
                  cdn.bv_val++;
            cdn.bv_len = dn->bv_len - (cdn.bv_val - dn->bv_val);

            root = root->ce_kids;

            for (;root;root=root->ce_sibs) {
                  if ( dn_match( &root->ce_entry->e_nname, &cdn )) {
                        if ( cdn.bv_val == dn->bv_val ) {
                              return root;
                        }
                        break;
                  }
            }
      }
      return root;
}

typedef struct setup_cookie {
      CfBackInfo *cfb;
      ConfigArgs *ca;
      Entry *frontend;
      Entry *config;
      int   got_frontend;
      int got_config;
} setup_cookie;

static int
config_ldif_resp( Operation *op, SlapReply *rs )
{
      if ( rs->sr_type == REP_SEARCH ) {
            setup_cookie *sc = op->o_callback->sc_private;

            sc->cfb->cb_got_ldif = 1;
            /* Does the frontend exist? */
            if ( !sc->got_frontend ) {
                  if ( !strncmp( rs->sr_entry->e_nname.bv_val,
                        "olcDatabase", STRLENOF( "olcDatabase" ))) {
                        if ( strncmp( rs->sr_entry->e_nname.bv_val +
                              STRLENOF( "olcDatabase" ), "={-1}frontend",
                              STRLENOF( "={-1}frontend" ))) {
                              struct berval rdn;
                              int i = op->o_noop;
                              sc->ca->be = frontendDB;
                              sc->ca->bi = frontendDB->bd_info;
                              frontendDB->be_cf_ocs = &CFOC_FRONTEND;
                              rdn.bv_val = sc->ca->log;
                              rdn.bv_len = snprintf(rdn.bv_val, sizeof( sc->ca->log ),
                                    "%s=" SLAP_X_ORDERED_FMT "%s",
                                    cfAd_database->ad_cname.bv_val, -1,
                                    sc->ca->bi->bi_type);
                              op->o_noop = 1;
                              sc->frontend = config_build_entry( op, rs,
                                    sc->cfb->cb_root, sc->ca, &rdn, &CFOC_DATABASE,
                                    sc->ca->be->be_cf_ocs );
                              op->o_noop = i;
                              sc->got_frontend++;
                        } else {
                              sc->got_frontend++;
                              goto ok;
                        }
                  }
            }
            /* Does the configDB exist? */
            if ( sc->got_frontend && !sc->got_config &&
                  !strncmp( rs->sr_entry->e_nname.bv_val,
                  "olcDatabase", STRLENOF( "olcDatabase" ))) {
                  if ( strncmp( rs->sr_entry->e_nname.bv_val +
                        STRLENOF( "olcDatabase" ), "={0}config",
                        STRLENOF( "={0}config" ))) {
                        struct berval rdn;
                        int i = op->o_noop;
                        sc->ca->be = LDAP_STAILQ_FIRST( &backendDB );
                        sc->ca->bi = sc->ca->be->bd_info;
                        rdn.bv_val = sc->ca->log;
                        rdn.bv_len = snprintf(rdn.bv_val, sizeof( sc->ca->log ),
                              "%s=" SLAP_X_ORDERED_FMT "%s",
                              cfAd_database->ad_cname.bv_val, 0,
                              sc->ca->bi->bi_type);
                        op->o_noop = 1;
                        sc->config = config_build_entry( op, rs, sc->cfb->cb_root,
                              sc->ca, &rdn, &CFOC_DATABASE, sc->ca->be->be_cf_ocs );
                        op->o_noop = i;
                  }
                  sc->got_config++;
            }

ok:
            rs->sr_err = config_add_internal( sc->cfb, rs->sr_entry, sc->ca, NULL, NULL, NULL );
            if ( rs->sr_err != LDAP_SUCCESS ) {
                  Debug( LDAP_DEBUG_ANY, "config error processing %s: %s\n",
                        rs->sr_entry->e_name.bv_val, sc->ca->cr_msg, 0 );
            }
      }
      return rs->sr_err;
}

/* Configure and read the underlying back-ldif store */
static int
config_setup_ldif( BackendDB *be, const char *dir, int readit ) {
      CfBackInfo *cfb = be->be_private;
      ConfigArgs c = {0};
      ConfigTable *ct;
      char *argv[3];
      int rc = 0;
      setup_cookie sc;
      slap_callback cb = { NULL, config_ldif_resp, NULL, NULL };
      Connection conn = {0};
      OperationBuffer opbuf;
      Operation *op;
      SlapReply rs = {REP_RESULT};
      Filter filter = { LDAP_FILTER_PRESENT };
      struct berval filterstr = BER_BVC("(objectclass=*)");
      struct stat st;

      /* Is the config directory available? */
      if ( stat( dir, &st ) < 0 ) {
            /* No, so don't bother using the backing store.
             * All changes will be in-memory only.
             */
            return 0;
      }
            
      cfb->cb_db.bd_info = backend_info( "ldif" );
      if ( !cfb->cb_db.bd_info )
            return 0;   /* FIXME: eventually this will be a fatal error */

      if ( backend_db_init( "ldif", &cfb->cb_db, -1, NULL ) == NULL )
            return 1;

      cfb->cb_db.be_suffix = be->be_suffix;
      cfb->cb_db.be_nsuffix = be->be_nsuffix;

      /* The suffix is always "cn=config". The underlying DB's rootdn
       * is always the same as the suffix.
       */
      cfb->cb_db.be_rootdn = be->be_suffix[0];
      cfb->cb_db.be_rootndn = be->be_nsuffix[0];

      ber_str2bv( dir, 0, 1, &cfdir );

      c.be = &cfb->cb_db;
      c.fname = "slapd";
      c.argc = 2;
      argv[0] = "directory";
      argv[1] = (char *)dir;
      argv[2] = NULL;
      c.argv = argv;
      c.reply.err = 0;
      c.reply.msg[0] = 0;
      c.table = Cft_Database;

      ct = config_find_keyword( c.be->be_cf_ocs->co_table, &c );
      if ( !ct )
            return 1;

      if ( config_add_vals( ct, &c ))
            return 1;

      if ( backend_startup_one( &cfb->cb_db, &c.reply ))
            return 1;

      if ( readit ) {
            void *thrctx = ldap_pvt_thread_pool_context();
            int prev_DN_strict;

            connection_fake_init( &conn, &opbuf, thrctx );
            op = &opbuf.ob_op;

            filter.f_desc = slap_schema.si_ad_objectClass;

            op->o_tag = LDAP_REQ_SEARCH;

            op->ors_filter = &filter;
            op->ors_filterstr = filterstr;
            op->ors_scope = LDAP_SCOPE_SUBTREE;

            op->o_dn = c.be->be_rootdn;
            op->o_ndn = c.be->be_rootndn;

            op->o_req_dn = be->be_suffix[0];
            op->o_req_ndn = be->be_nsuffix[0];

            op->ors_tlimit = SLAP_NO_LIMIT;
            op->ors_slimit = SLAP_NO_LIMIT;

            op->ors_attrs = slap_anlist_all_attributes;
            op->ors_attrsonly = 0;

            op->o_callback = &cb;
            sc.cfb = cfb;
            sc.ca = &c;
            cb.sc_private = &sc;
            sc.got_frontend = 0;
            sc.got_config = 0;
            sc.frontend = NULL;
            sc.config = NULL;

            op->o_bd = &cfb->cb_db;
            
            /* Allow unknown attrs in DNs */
            prev_DN_strict = slap_DN_strict;
            slap_DN_strict = 0;

            rc = op->o_bd->be_search( op, &rs );

            /* Restore normal DN validation */
            slap_DN_strict = prev_DN_strict;

            op->o_tag = LDAP_REQ_ADD;
            if ( rc == LDAP_SUCCESS && sc.frontend ) {
                  op->ora_e = sc.frontend;
                  rc = op->o_bd->be_add( op, &rs );
            }
            if ( rc == LDAP_SUCCESS && sc.config ) {
                  op->ora_e = sc.config;
                  rc = op->o_bd->be_add( op, &rs );
            }
            ldap_pvt_thread_pool_context_reset( thrctx );
      }

      /* ITS#4194 - only use if it's present, or we're converting. */
      if ( !readit || rc == LDAP_SUCCESS )
            cfb->cb_use_ldif = 1;

      return rc;
}

static int
CfOc_cmp( const void *c1, const void *c2 ) {
      const ConfigOCs *co1 = c1;
      const ConfigOCs *co2 = c2;

      return ber_bvcmp( co1->co_name, co2->co_name );
}

int
config_register_schema(ConfigTable *ct, ConfigOCs *ocs) {
      int i;

      i = init_config_attrs( ct );
      if ( i ) return i;

      /* set up the objectclasses */
      i = init_config_ocs( ocs );
      if ( i ) return i;

      for (i=0; ocs[i].co_def; i++) {
            if ( ocs[i].co_oc ) {
                  ocs[i].co_name = &ocs[i].co_oc->soc_cname;
                  if ( !ocs[i].co_table )
                        ocs[i].co_table = ct;
                  avl_insert( &CfOcTree, &ocs[i], CfOc_cmp, avl_dup_error );
            }
      }
      return 0;
}

int
read_config(const char *fname, const char *dir) {
      BackendDB *be;
      CfBackInfo *cfb;
      const char *cfdir, *cfname;
      int rc;

      /* Setup the config backend */
      be = backend_db_init( "config", NULL, 0, NULL );
      if ( !be )
            return 1;

      cfb = be->be_private;
      be->be_dfltaccess = ACL_NONE;

      /* If no .conf, or a dir was specified, setup the dir */
      if ( !fname || dir ) {
            if ( dir ) {
                  /* If explicitly given, check for existence */
                  struct stat st;

                  if ( stat( dir, &st ) < 0 ) {
                        Debug( LDAP_DEBUG_ANY,
                              "invalid config directory %s, error %d\n",
                                    dir, errno, 0 );
                        return 1;
                  }
                  cfdir = dir;
            } else {
                  cfdir = SLAPD_DEFAULT_CONFIGDIR;
            }
            /* if fname is defaulted, try reading .d */
            rc = config_setup_ldif( be, cfdir, !fname );

            if ( rc ) {
                  /* It may be OK if the base object doesn't exist yet. */
                  if ( rc != LDAP_NO_SUCH_OBJECT )
                        return 1;
                  /* ITS#4194: But if dir was specified and no fname,
                   * then we were supposed to read the dir. Unless we're
                   * trying to slapadd the dir...
                   */
                  if ( dir && !fname ) {
                        if ( slapMode & (SLAP_SERVER_MODE|SLAP_TOOL_READMAIN|SLAP_TOOL_READONLY))
                              return 1;
                        /* Assume it's slapadd with a config dir, let it continue */
                        rc = 0;
                        cfb->cb_got_ldif = 1;
                        cfb->cb_use_ldif = 1;
                        goto done;
                  }
            }

            /* If we read the config from back-ldif, nothing to do here */
            if ( cfb->cb_got_ldif ) {
                  rc = 0;
                  goto done;
            }
      }

      if ( fname )
            cfname = fname;
      else
            cfname = SLAPD_DEFAULT_CONFIGFILE;

      rc = read_config_file(cfname, 0, NULL, config_back_cf_table);

      if ( rc == 0 )
            ber_str2bv( cfname, 0, 1, &cfb->cb_config->c_file );

done:
      if ( rc == 0 && BER_BVISNULL( &frontendDB->be_schemadn ) ) {
            ber_str2bv( SLAPD_SCHEMA_DN, STRLENOF( SLAPD_SCHEMA_DN ), 1,
                  &frontendDB->be_schemadn );
            rc = dnNormalize( 0, NULL, NULL, &frontendDB->be_schemadn, &frontendDB->be_schemandn, NULL );
            if ( rc != LDAP_SUCCESS ) {
                  Debug(LDAP_DEBUG_ANY, "read_config: "
                        "unable to normalize default schema DN \"%s\"\n",
                        frontendDB->be_schemadn.bv_val, 0, 0 );
                  /* must not happen */
                  assert( 0 );
            }
      }
      return rc;
}

static int
config_back_bind( Operation *op, SlapReply *rs )
{
      if ( be_isroot_pw( op ) ) {
            ber_dupbv( &op->orb_edn, be_root_dn( op->o_bd ));
            /* frontend sends result */
            return LDAP_SUCCESS;
      }

      rs->sr_err = LDAP_INVALID_CREDENTIALS;
      send_ldap_result( op, rs );

      return rs->sr_err;
}

static int
config_send( Operation *op, SlapReply *rs, CfEntryInfo *ce, int depth )
{
      int rc = 0;

      if ( test_filter( op, ce->ce_entry, op->ors_filter ) == LDAP_COMPARE_TRUE )
      {
            rs->sr_attrs = op->ors_attrs;
            rs->sr_entry = ce->ce_entry;
            rs->sr_flags = 0;
            rc = send_search_entry( op, rs );
      }
      if ( op->ors_scope == LDAP_SCOPE_SUBTREE ) {
            if ( ce->ce_kids ) {
                  rc = config_send( op, rs, ce->ce_kids, 1 );
                  if ( rc ) return rc;
            }
            if ( depth ) {
                  for (ce=ce->ce_sibs; ce; ce=ce->ce_sibs) {
                        rc = config_send( op, rs, ce, 0 );
                        if ( rc ) break;
                  }
            }
      }
      return rc;
}

static ConfigTable *
config_find_table( ConfigOCs **colst, int nocs, AttributeDescription *ad,
      ConfigArgs *ca )
{
      int i, j;

      for (j=0; j<nocs; j++) {
            for (i=0; colst[j]->co_table[i].name; i++)
                  if ( colst[j]->co_table[i].ad == ad ) {
                        ca->table = colst[j]->co_type;
                        return &colst[j]->co_table[i];
                  }
      }
      return NULL;
}

/* Sort the attributes of the entry according to the order defined
 * in the objectclass, with required attributes occurring before
 * allowed attributes. For any attributes with sequencing dependencies
 * (e.g., rootDN must be defined after suffix) the objectclass must
 * list the attributes in the desired sequence.
 */
static void
sort_attrs( Entry *e, ConfigOCs **colst, int nocs )
{
      Attribute *a, *head = NULL, *tail = NULL, **prev;
      int i, j;

      for (i=0; i<nocs; i++) {
            if ( colst[i]->co_oc->soc_required ) {
                  AttributeType **at = colst[i]->co_oc->soc_required;
                  for (j=0; at[j]; j++) {
                        for (a=e->e_attrs, prev=&e->e_attrs; a;
                              prev = &(*prev)->a_next, a=a->a_next) {
                              if ( a->a_desc == at[j]->sat_ad ) {
                                    *prev = a->a_next;
                                    if (!head) {
                                          head = a;
                                          tail = a;
                                    } else {
                                          tail->a_next = a;
                                          tail = a;
                                    }
                                    break;
                              }
                        }
                  }
            }
            if ( colst[i]->co_oc->soc_allowed ) {
                  AttributeType **at = colst[i]->co_oc->soc_allowed;
                  for (j=0; at[j]; j++) {
                        for (a=e->e_attrs, prev=&e->e_attrs; a;
                              prev = &(*prev)->a_next, a=a->a_next) {
                              if ( a->a_desc == at[j]->sat_ad ) {
                                    *prev = a->a_next;
                                    if (!head) {
                                          head = a;
                                          tail = a;
                                    } else {
                                          tail->a_next = a;
                                          tail = a;
                                    }
                                    break;
                              }
                        }
                  }
            }
      }
      if ( tail ) {
            tail->a_next = e->e_attrs;
            e->e_attrs = head;
      }
}

static int
check_vals( ConfigTable *ct, ConfigArgs *ca, void *ptr, int isAttr )
{
      Attribute *a = NULL;
      AttributeDescription *ad;
      BerVarray vals;

      int i, rc = 0;

      if ( isAttr ) {
            a = ptr;
            ad = a->a_desc;
            vals = a->a_vals;
      } else {
            Modifications *ml = ptr;
            ad = ml->sml_desc;
            vals = ml->sml_values;
      }

      if ( a && ( ad->ad_type->sat_flags & SLAP_AT_ORDERED_VAL )) {
            rc = ordered_value_sort( a, 1 );
            if ( rc ) {
                  snprintf(ca->cr_msg, sizeof( ca->cr_msg ), "ordered_value_sort failed on attr %s\n",
                        ad->ad_cname.bv_val );
                  return rc;
            }
      }
      for ( i=0; vals[i].bv_val; i++ ) {
            ca->line = vals[i].bv_val;
            if (( ad->ad_type->sat_flags & SLAP_AT_ORDERED_VAL ) &&
                  ca->line[0] == '{' ) {
                  char *idx = strchr( ca->line, '}' );
                  if ( idx ) ca->line = idx+1;
            }
            rc = config_parse_vals( ct, ca, i );
            if ( rc ) {
                  break;
            }
      }
      return rc;
}

static int
config_rename_attr( SlapReply *rs, Entry *e, struct berval *rdn,
      Attribute **at )
{
      struct berval rtype, rval;
      Attribute *a;
      AttributeDescription *ad = NULL;

      dnRdn( &e->e_name, rdn );
      rval.bv_val = strchr(rdn->bv_val, '=' ) + 1;
      rval.bv_len = rdn->bv_len - (rval.bv_val - rdn->bv_val);
      rtype.bv_val = rdn->bv_val;
      rtype.bv_len = rval.bv_val - rtype.bv_val - 1;

      /* Find attr */
      slap_bv2ad( &rtype, &ad, &rs->sr_text );
      a = attr_find( e->e_attrs, ad );
      if (!a ) return LDAP_NAMING_VIOLATION;
      *at = a;

      return 0;
}

static void
config_rename_kids( CfEntryInfo *ce )
{
      CfEntryInfo *ce2;
      struct berval rdn, nrdn;

      for (ce2 = ce->ce_kids; ce2; ce2 = ce2->ce_sibs) {
            dnRdn ( &ce2->ce_entry->e_name, &rdn );
            dnRdn ( &ce2->ce_entry->e_nname, &nrdn );
            free( ce2->ce_entry->e_name.bv_val );
            free( ce2->ce_entry->e_nname.bv_val );
            build_new_dn( &ce2->ce_entry->e_name, &ce->ce_entry->e_name,
                  &rdn, NULL );
            build_new_dn( &ce2->ce_entry->e_nname, &ce->ce_entry->e_nname,
                  &nrdn, NULL );
            config_rename_kids( ce2 );
      }
}

static int
config_rename_one( Operation *op, SlapReply *rs, Entry *e,
      CfEntryInfo *parent, Attribute *a, struct berval *newrdn,
      struct berval *nnewrdn, int use_ldif )
{
      char *ptr1;
      int rc = 0;
      struct berval odn, ondn;

      odn = e->e_name;
      ondn = e->e_nname;
      build_new_dn( &e->e_name, &parent->ce_entry->e_name, newrdn, NULL );
      build_new_dn( &e->e_nname, &parent->ce_entry->e_nname, nnewrdn, NULL );

      /* Replace attr */
      free( a->a_vals[0].bv_val );
      ptr1 = strchr( newrdn->bv_val, '=' ) + 1;
      a->a_vals[0].bv_len = newrdn->bv_len - (ptr1 - newrdn->bv_val);
      a->a_vals[0].bv_val = ch_malloc( a->a_vals[0].bv_len + 1 );
      strcpy( a->a_vals[0].bv_val, ptr1 );

      if ( a->a_nvals != a->a_vals ) {
            free( a->a_nvals[0].bv_val );
            ptr1 = strchr( nnewrdn->bv_val, '=' ) + 1;
            a->a_nvals[0].bv_len = nnewrdn->bv_len - (ptr1 - nnewrdn->bv_val);
            a->a_nvals[0].bv_val = ch_malloc( a->a_nvals[0].bv_len + 1 );
            strcpy( a->a_nvals[0].bv_val, ptr1 );
      }
      if ( use_ldif ) {
            CfBackInfo *cfb = (CfBackInfo *)op->o_bd->be_private;
            BackendDB *be = op->o_bd;
            slap_callback sc = { NULL, slap_null_cb, NULL, NULL }, *scp;
            struct berval dn, ndn, xdn, xndn;

            op->o_bd = &cfb->cb_db;

            /* Save current rootdn; use the underlying DB's rootdn */
            dn = op->o_dn;
            ndn = op->o_ndn;
            xdn = op->o_req_dn;
            xndn = op->o_req_ndn;
            op->o_dn = op->o_bd->be_rootdn;
            op->o_ndn = op->o_bd->be_rootndn;
            op->o_req_dn = odn;
            op->o_req_ndn = ondn;

            scp = op->o_callback;
            op->o_callback = &sc;
            op->orr_newrdn = *newrdn;
            op->orr_nnewrdn = *nnewrdn;
            op->orr_newSup = NULL;
            op->orr_nnewSup = NULL;
            op->orr_deleteoldrdn = 1;
            op->orr_modlist = NULL;
            slap_modrdn2mods( op, rs );
            slap_mods_opattrs( op, &op->orr_modlist, 1 );
            rc = op->o_bd->be_modrdn( op, rs );
            slap_mods_free( op->orr_modlist, 1 );

            op->o_bd = be;
            op->o_callback = scp;
            op->o_dn = dn;
            op->o_ndn = ndn;
            op->o_req_dn = xdn;
            op->o_req_ndn = xndn;
      }
      free( odn.bv_val );
      free( ondn.bv_val );
      if ( e->e_private )
            config_rename_kids( e->e_private );
      return rc;
}

static int
config_renumber_one( Operation *op, SlapReply *rs, CfEntryInfo *parent, 
      Entry *e, int idx, int tailindex, int use_ldif )
{
      struct berval ival, newrdn, nnewrdn;
      struct berval rdn;
      Attribute *a;
      char ibuf[32], *ptr1, *ptr2 = NULL;
      int rc = 0;

      rc = config_rename_attr( rs, e, &rdn, &a );
      if ( rc ) return rc;

      ival.bv_val = ibuf;
      ival.bv_len = snprintf( ibuf, sizeof( ibuf ), SLAP_X_ORDERED_FMT, idx );
      if ( ival.bv_len >= sizeof( ibuf ) ) {
            return LDAP_NAMING_VIOLATION;
      }
      
      newrdn.bv_len = rdn.bv_len + ival.bv_len;
      newrdn.bv_val = ch_malloc( newrdn.bv_len+1 );

      if ( tailindex ) {
            ptr1 = lutil_strncopy( newrdn.bv_val, rdn.bv_val, rdn.bv_len );
            ptr1 = lutil_strcopy( ptr1, ival.bv_val );
      } else {
            int xlen;
            ptr2 = ber_bvchr( &rdn, '}' );
            if ( ptr2 ) {
                  ptr2++;
            } else {
                  ptr2 = rdn.bv_val + a->a_desc->ad_cname.bv_len + 1;
            }
            xlen = rdn.bv_len - (ptr2 - rdn.bv_val);
            ptr1 = lutil_strncopy( newrdn.bv_val, a->a_desc->ad_cname.bv_val,
                  a->a_desc->ad_cname.bv_len );
            *ptr1++ = '=';
            ptr1 = lutil_strcopy( ptr1, ival.bv_val );
            ptr1 = lutil_strncopy( ptr1, ptr2, xlen );
            *ptr1 = '\0';
      }

      /* Do the equivalent of ModRDN */
      /* Replace DN / NDN */
      newrdn.bv_len = ptr1 - newrdn.bv_val;
      rdnNormalize( 0, NULL, NULL, &newrdn, &nnewrdn, NULL );
      rc = config_rename_one( op, rs, e, parent, a, &newrdn, &nnewrdn, use_ldif );

      free( nnewrdn.bv_val );
      free( newrdn.bv_val );
      return rc;
}

static int
check_name_index( CfEntryInfo *parent, ConfigType ce_type, Entry *e,
      SlapReply *rs, int *renum, int *ibase )
{
      CfEntryInfo *ce;
      int index = -1, gotindex = 0, nsibs, rc = 0;
      int renumber = 0, tailindex = 0, isfrontend = 0, isconfig = 0;
      char *ptr1, *ptr2 = NULL;
      struct berval rdn;

      if ( renum ) *renum = 0;

      /* These entries don't get indexed/renumbered */
      if ( ce_type == Cft_Global ) return 0;
      if ( ce_type == Cft_Schema && parent->ce_type == Cft_Global ) return 0;

      if ( ce_type == Cft_Module )
            tailindex = 1;

      /* See if the rdn has an index already */
      dnRdn( &e->e_name, &rdn );
      if ( ce_type == Cft_Database ) {
            if ( !strncmp( rdn.bv_val + rdn.bv_len - STRLENOF("frontend"),
                        "frontend", STRLENOF("frontend") )) 
                  isfrontend = 1;
            else if ( !strncmp( rdn.bv_val + rdn.bv_len - STRLENOF("config"),
                        "config", STRLENOF("config") )) 
                  isconfig = 1;
      }
      ptr1 = ber_bvchr( &e->e_name, '{' );
      if ( ptr1 && ptr1 - e->e_name.bv_val < rdn.bv_len ) {
            char  *next;
            ptr2 = strchr( ptr1, '}' );
            if (!ptr2 || ptr2 - e->e_name.bv_val > rdn.bv_len)
                  return LDAP_NAMING_VIOLATION;
            if ( ptr2-ptr1 == 1)
                  return LDAP_NAMING_VIOLATION;
            gotindex = 1;
            index = strtol( ptr1 + 1, &next, 10 );
            if ( next == ptr1 + 1 || next[ 0 ] != '}' ) {
                  return LDAP_NAMING_VIOLATION;
            }
            if ( index < 0 ) {
                  /* Special case, we allow -1 for the frontendDB */
                  if ( index != -1 || !isfrontend )
                        return LDAP_NAMING_VIOLATION;
            }
            if ( isconfig && index != 0 ){
                  return LDAP_NAMING_VIOLATION;
            }
      }

      /* count related kids */
      for (nsibs=0, ce=parent->ce_kids; ce; ce=ce->ce_sibs) {
            if ( ce->ce_type == ce_type ) nsibs++;
      }

      /* account for -1 frontend */
      if ( ce_type == Cft_Database )
            nsibs--;

      if ( index != nsibs ) {
            if ( gotindex ) {
                  if ( index < nsibs ) {
                        if ( tailindex ) return LDAP_NAMING_VIOLATION;
                        /* Siblings need to be renumbered */
                        if ( index != -1 || !isfrontend )
                              renumber = 1;
                  }
            }
            /* config DB is always "0" */
            if ( isconfig && index == -1 ) {
                  index = 0;
            }
            if ( !isfrontend && index == -1 ) {
                  index = nsibs;
            }

            /* just make index = nsibs */
            if ( !renumber ) {
                  rc = config_renumber_one( NULL, rs, parent, e, index, tailindex, 0 );
            }
      }
      if ( ibase ) *ibase = index;
      if ( renum ) *renum = renumber;
      return rc;
}

static int
count_oc( ObjectClass *oc, ConfigOCs ***copp, int *nocs )
{
      ConfigOCs   co, *cop;
      ObjectClass **sups;

      co.co_name = &oc->soc_cname;
      cop = avl_find( CfOcTree, &co, CfOc_cmp );
      if ( cop ) {
            int   i;

            /* check for duplicates */
            for ( i = 0; i < *nocs; i++ ) {
                  if ( *copp && (*copp)[i] == cop ) {
                        break;
                  }
            }

            if ( i == *nocs ) {
                  ConfigOCs **tmp = ch_realloc( *copp, (*nocs + 1)*sizeof( ConfigOCs * ) );
                  if ( tmp == NULL ) {
                        return -1;
                  }
                  *copp = tmp;
                  (*copp)[*nocs] = cop;
                  (*nocs)++;
            }
      }

      for ( sups = oc->soc_sups; sups && *sups; sups++ ) {
            if ( count_oc( *sups, copp, nocs ) ) {
                  return -1;
            }
      }

      return 0;
}

static ConfigOCs **
count_ocs( Attribute *oc_at, int *nocs )
{
      int         i;
      ConfigOCs   **colst = NULL;

      *nocs = 0;

      for ( i = 0; !BER_BVISNULL( &oc_at->a_nvals[i] ); i++ )
            /* count attrs */ ;

      for ( ; i--; ) {
            ObjectClass *oc = oc_bvfind( &oc_at->a_nvals[i] );

            assert( oc != NULL );
            if ( count_oc( oc, &colst, nocs ) ) {
                  ch_free( colst );
                  return NULL;
            }
      }

      return colst;
}

static int
cfAddInclude( CfEntryInfo *p, Entry *e, ConfigArgs *ca )
{
      /* Leftover from RE23. Never parse this entry */
      return LDAP_COMPARE_TRUE;
}

static int
cfAddSchema( CfEntryInfo *p, Entry *e, ConfigArgs *ca )
{
      ConfigFile *cfo;

      /* This entry is hardcoded, don't re-parse it */
      if ( p->ce_type == Cft_Global ) {
            cfn = p->ce_private;
            ca->ca_private = cfn;
            return LDAP_COMPARE_TRUE;
      }
      if ( p->ce_type != Cft_Schema )
            return LDAP_CONSTRAINT_VIOLATION;

      cfn = ch_calloc( 1, sizeof(ConfigFile) );
      ca->ca_private = cfn;
      cfo = p->ce_private;
      cfn->c_sibs = cfo->c_kids;
      cfo->c_kids = cfn;
      return LDAP_SUCCESS;
}

static int
cfAddDatabase( CfEntryInfo *p, Entry *e, struct config_args_s *ca )
{
      if ( p->ce_type != Cft_Global ) {
            return LDAP_CONSTRAINT_VIOLATION;
      }
      ca->be = frontendDB;    /* just to get past check_vals */
      return LDAP_SUCCESS;
}

static int
cfAddBackend( CfEntryInfo *p, Entry *e, struct config_args_s *ca )
{
      if ( p->ce_type != Cft_Global ) {
            return LDAP_CONSTRAINT_VIOLATION;
      }
      return LDAP_SUCCESS;
}

static int
cfAddModule( CfEntryInfo *p, Entry *e, struct config_args_s *ca )
{
      if ( p->ce_type != Cft_Global ) {
            return LDAP_CONSTRAINT_VIOLATION;
      }
      return LDAP_SUCCESS;
}

static int
cfAddOverlay( CfEntryInfo *p, Entry *e, struct config_args_s *ca )
{
      if ( p->ce_type != Cft_Database ) {
            return LDAP_CONSTRAINT_VIOLATION;
      }
      ca->be = p->ce_be;
      return LDAP_SUCCESS;
}

static void
schema_destroy_one( ConfigArgs *ca, ConfigOCs **colst, int nocs,
      CfEntryInfo *p )
{
      ConfigTable *ct;
      ConfigFile *cfo;
      AttributeDescription *ad;
      const char *text;

      ca->valx = -1;
      ca->line = NULL;
      if ( cfn->c_cr_head ) {
            struct berval bv = BER_BVC("olcDitContentRules");
            ad = NULL;
            slap_bv2ad( &bv, &ad, &text );
            ct = config_find_table( colst, nocs, ad, ca );
            config_del_vals( ct, ca );
      }
      if ( cfn->c_oc_head ) {
            struct berval bv = BER_BVC("olcObjectClasses");
            ad = NULL;
            slap_bv2ad( &bv, &ad, &text );
            ct = config_find_table( colst, nocs, ad, ca );
            config_del_vals( ct, ca );
      }
      if ( cfn->c_at_head ) {
            struct berval bv = BER_BVC("olcAttributeTypes");
            ad = NULL;
            slap_bv2ad( &bv, &ad, &text );
            ct = config_find_table( colst, nocs, ad, ca );
            config_del_vals( ct, ca );
      }
      if ( cfn->c_om_head ) {
            struct berval bv = BER_BVC("olcObjectIdentifier");
            ad = NULL;
            slap_bv2ad( &bv, &ad, &text );
            ct = config_find_table( colst, nocs, ad, ca );
            config_del_vals( ct, ca );
      }
      cfo = p->ce_private;
      cfo->c_kids = cfn->c_sibs;
      ch_free( cfn );
}

static int
config_add_oc( ConfigOCs **cop, CfEntryInfo *last, Entry *e, ConfigArgs *ca )
{
      int         rc = LDAP_CONSTRAINT_VIOLATION;
      ObjectClass **ocp;

      if ( (*cop)->co_ldadd ) {
            rc = (*cop)->co_ldadd( last, e, ca );
            if ( rc != LDAP_CONSTRAINT_VIOLATION ) {
                  return rc;
            }
      }

      for ( ocp = (*cop)->co_oc->soc_sups; ocp && *ocp; ocp++ ) {
            ConfigOCs   co = { 0 };

            co.co_name = &(*ocp)->soc_cname;
            *cop = avl_find( CfOcTree, &co, CfOc_cmp );
            if ( *cop == NULL ) {
                  return rc;
            }

            rc = config_add_oc( cop, last, e, ca );
            if ( rc != LDAP_CONSTRAINT_VIOLATION ) {
                  return rc;
            }
      }

      return rc;
}

/* Parse an LDAP entry into config directives */
static int
config_add_internal( CfBackInfo *cfb, Entry *e, ConfigArgs *ca, SlapReply *rs,
      int *renum, Operation *op )
{
      CfEntryInfo *ce, *last = NULL;
      ConfigOCs   co, *coptr, **colst;
      Attribute   *a, *oc_at, *soc_at;
      int         i, ibase = -1, nocs, rc = 0;
      struct berval     pdn;
      ConfigTable *ct;
      char        *ptr, *log_prefix = op ? op->o_log_prefix : "";

      memset( ca, 0, sizeof(ConfigArgs));

      /* Make sure parent exists and entry does not. But allow
       * Databases and Overlays to be inserted. Don't do any
       * auto-renumbering if manageDSAit control is present.
       */
      ce = config_find_base( cfb->cb_root, &e->e_nname, &last );
      if ( ce ) {
            if ( ( op && op->o_managedsait ) ||
                  ( ce->ce_type != Cft_Database && ce->ce_type != Cft_Overlay &&
                    ce->ce_type != Cft_Module ) )
            {
                  Debug( LDAP_DEBUG_TRACE, "%s: config_add_internal: "
                        "DN=\"%s\" already exists\n",
                        log_prefix, e->e_name.bv_val, 0 );
                  return LDAP_ALREADY_EXISTS;
            }
      }

      dnParent( &e->e_nname, &pdn );

      /* If last is NULL, the new entry is the root/suffix entry, 
       * otherwise last should be the parent.
       */
      if ( last && !dn_match( &last->ce_entry->e_nname, &pdn ) ) {
            if ( rs ) {
                  rs->sr_matched = last->ce_entry->e_name.bv_val;
            }
            Debug( LDAP_DEBUG_TRACE, "%s: config_add_internal: "
                  "DN=\"%s\" not child of DN=\"%s\"\n",
                  log_prefix, e->e_name.bv_val,
                  last->ce_entry->e_name.bv_val );
            return LDAP_NO_SUCH_OBJECT;
      }

      if ( op ) {
            /* No parent, must be root. This will never happen... */
            if ( !last && !be_isroot( op ) && !be_shadow_update( op ) ) {
                  return LDAP_NO_SUCH_OBJECT;
            }

            if ( last && !access_allowed( op, last->ce_entry,
                  slap_schema.si_ad_children, NULL, ACL_WADD, NULL ) )
            {
                  Debug( LDAP_DEBUG_TRACE, "%s: config_add_internal: "
                        "DN=\"%s\" no write access to \"children\" of parent\n",
                        log_prefix, e->e_name.bv_val, 0 );
                  return LDAP_INSUFFICIENT_ACCESS;
            }
      }

      oc_at = attr_find( e->e_attrs, slap_schema.si_ad_objectClass );
      if ( !oc_at ) {
            Debug( LDAP_DEBUG_TRACE, "%s: config_add_internal: "
                  "DN=\"%s\" no objectClass\n",
                  log_prefix, e->e_name.bv_val, 0 );
            return LDAP_OBJECT_CLASS_VIOLATION;
      }

      soc_at = attr_find( e->e_attrs, slap_schema.si_ad_structuralObjectClass );
      if ( !soc_at ) {
            ObjectClass *soc = NULL;
            char        textbuf[ SLAP_TEXT_BUFLEN ];
            const char  *text = textbuf;

            /* FIXME: check result */
            rc = structural_class( oc_at->a_nvals, &soc, NULL,
                  &text, textbuf, sizeof(textbuf), NULL );
            if ( rc != LDAP_SUCCESS ) {
                  Debug( LDAP_DEBUG_TRACE, "%s: config_add_internal: "
                        "DN=\"%s\" no structural objectClass (%s)\n",
                        log_prefix, e->e_name.bv_val, text );
                  return rc;
            }
            attr_merge_one( e, slap_schema.si_ad_structuralObjectClass, &soc->soc_cname, NULL );
            soc_at = attr_find( e->e_attrs, slap_schema.si_ad_structuralObjectClass );
            if ( soc_at == NULL ) {
                  Debug( LDAP_DEBUG_TRACE, "%s: config_add_internal: "
                        "DN=\"%s\" no structural objectClass; "
                        "unable to merge computed class %s\n",
                        log_prefix, e->e_name.bv_val,
                        soc->soc_cname.bv_val );
                  return LDAP_OBJECT_CLASS_VIOLATION;
            }

            Debug( LDAP_DEBUG_TRACE, "%s: config_add_internal: "
                  "DN=\"%s\" no structural objectClass; "
                  "computed objectClass %s merged\n",
                  log_prefix, e->e_name.bv_val,
                  soc->soc_cname.bv_val );
      }

      /* Fake the coordinates based on whether we're part of an
       * LDAP Add or if reading the config dir
       */
      if ( rs ) {
            ca->fname = "slapd";
            ca->lineno = 0;
      } else {
            ca->fname = cfdir.bv_val;
            ca->lineno = 1;
      }
      ca->ca_op = op;

      co.co_name = &soc_at->a_nvals[0];
      coptr = avl_find( CfOcTree, &co, CfOc_cmp );
      if ( coptr == NULL ) {
            Debug( LDAP_DEBUG_TRACE, "%s: config_add_internal: "
                  "DN=\"%s\" no structural objectClass in configuration table\n",
                  log_prefix, e->e_name.bv_val, 0 );
            return LDAP_OBJECT_CLASS_VIOLATION;
      }

      /* Only the root can be Cft_Global, everything else must
       * have a parent. Only limited nesting arrangements are allowed.
       */
      rc = LDAP_CONSTRAINT_VIOLATION;
      if ( coptr->co_type == Cft_Global && !last ) {
            cfn = cfb->cb_config;
            ca->ca_private = cfn;
            ca->be = frontendDB;    /* just to get past check_vals */
            rc = LDAP_SUCCESS;
      }

      colst = count_ocs( oc_at, &nocs );

      /* Check whether the Add is allowed by its parent, and do
       * any necessary arg setup
       */
      if ( last ) {
            rc = config_add_oc( &coptr, last, e, ca );
            if ( rc == LDAP_CONSTRAINT_VIOLATION ) {
                  for ( i = 0; i<nocs; i++ ) {
                        /* Already checked these */
                        if ( colst[i]->co_oc->soc_kind == LDAP_SCHEMA_STRUCTURAL )
                              continue;
                        if ( colst[i]->co_ldadd &&
                              ( rc = colst[i]->co_ldadd( last, e, ca ))
                                    != LDAP_CONSTRAINT_VIOLATION ) {
                              coptr = colst[i];
                              break;
                        }
                  }
            }
            if ( rc == LDAP_CONSTRAINT_VIOLATION ) {
                  Debug( LDAP_DEBUG_TRACE, "%s: config_add_internal: "
                        "DN=\"%s\" no structural objectClass add function\n",
                        log_prefix, e->e_name.bv_val, 0 );
                  return LDAP_OBJECT_CLASS_VIOLATION;
            }
      }

      /* Add the entry but don't parse it, we already have its contents */
      if ( rc == LDAP_COMPARE_TRUE ) {
            rc = LDAP_SUCCESS;
            goto ok;
      }

      if ( rc != LDAP_SUCCESS )
            goto done_noop;

      /* Parse all the values and check for simple syntax errors before
       * performing any set actions.
       *
       * If doing an LDAPadd, check for indexed names and any necessary
       * renaming/renumbering. Entries that don't need indexed names are
       * ignored. Entries that need an indexed name and arrive without one
       * are assigned to the end. Entries that arrive with an index may
       * cause the following entries to be renumbered/bumped down.
       *
       * Note that "pseudo-indexed" entries (cn=Include{xx}, cn=Module{xx})
       * don't allow Adding an entry with an index that's already in use.
       * This is flagged as an error (LDAP_ALREADY_EXISTS) up above.
       *
       * These entries can have auto-assigned indexes (appended to the end)
       * but only the other types support auto-renumbering of siblings.
       */
      {
            rc = check_name_index( last, coptr->co_type, e, rs, renum,
                  &ibase );
            if ( rc ) {
                  goto done_noop;
            }
            if ( renum && *renum && coptr->co_type != Cft_Database &&
                  coptr->co_type != Cft_Overlay )
            {
                  snprintf( ca->cr_msg, sizeof( ca->cr_msg ),
                        "operation requires sibling renumbering" );
                  rc = LDAP_UNWILLING_TO_PERFORM;
                  goto done_noop;
            }
      }

      init_config_argv( ca );

      /* Make sure we process attrs in the required order */
      sort_attrs( e, colst, nocs );

      for ( a = e->e_attrs; a; a = a->a_next ) {
            if ( a == oc_at ) continue;
            ct = config_find_table( colst, nocs, a->a_desc, ca );
            if ( !ct ) continue;    /* user data? */
            rc = check_vals( ct, ca, a, 1 );
            if ( rc ) goto done_noop;
      }

      /* Basic syntax checks are OK. Do the actual settings. */
      for ( a=e->e_attrs; a; a=a->a_next ) {
            if ( a == oc_at ) continue;
            ct = config_find_table( colst, nocs, a->a_desc, ca );
            if ( !ct ) continue;    /* user data? */
            for (i=0; a->a_vals[i].bv_val; i++) {
                  char *iptr = NULL;
                  ca->line = a->a_vals[i].bv_val;
                  if ( a->a_desc->ad_type->sat_flags & SLAP_AT_ORDERED ) {
                        ptr = strchr( ca->line, '}' );
                        if ( ptr ) {
                              iptr = strchr( ca->line, '{' );
                              ca->line = ptr+1;
                        }
                  }
                  if ( a->a_desc->ad_type->sat_flags & SLAP_AT_ORDERED_SIB ) {
                        if ( iptr ) {
                              ca->valx = strtol( iptr+1, NULL, 0 );
                        } else {
                              ca->valx = -1;
                        }
                  } else {
                        ca->valx = i;
                  }
                  rc = config_parse_add( ct, ca, i );
                  if ( rc ) {
                        rc = LDAP_OTHER;
                        goto done;
                  }
            }
      }
ok:
      /* Newly added databases and overlays need to be started up */
      if ( CONFIG_ONLINE_ADD( ca )) {
            if ( colst[0]->co_type == Cft_Database ) {
                  rc = backend_startup_one( ca->be, &ca->reply );

            } else if ( colst[0]->co_type == Cft_Overlay ) {
                  if ( ca->bi->bi_db_open ) {
                        BackendInfo *bi_orig = ca->be->bd_info;
                        ca->be->bd_info = ca->bi;
                        rc = ca->bi->bi_db_open( ca->be, &ca->reply );
                        ca->be->bd_info = bi_orig;
                  }
            } else if ( ca->cleanup ) {
                  rc = ca->cleanup( ca );
            }
            if ( rc ) {
                  if (ca->cr_msg[0] == '\0')
                        snprintf( ca->cr_msg, sizeof( ca->cr_msg ), "<%s> failed startup", ca->argv[0] );

                  Debug(LDAP_DEBUG_ANY, "%s: %s (%s)!\n",
                        ca->log, ca->cr_msg, ca->argv[1] );
                  rc = LDAP_OTHER;
                  goto done;
            }
      }

      ca->valx = ibase;
      ce = ch_calloc( 1, sizeof(CfEntryInfo) );
      ce->ce_parent = last;
      ce->ce_entry = entry_dup( e );
      ce->ce_entry->e_private = ce;
      ce->ce_type = colst[0]->co_type;
      ce->ce_be = ca->be;
      ce->ce_bi = ca->bi;
      ce->ce_private = ca->ca_private;
      ca->ca_entry = ce->ce_entry;
      if ( !last ) {
            cfb->cb_root = ce;
      } else if ( last->ce_kids ) {
            CfEntryInfo *c2, **cprev;

            /* Advance to first of this type */
            cprev = &last->ce_kids;
            for ( c2 = *cprev; c2 && c2->ce_type < ce->ce_type; ) {
                  cprev = &c2->ce_sibs;
                  c2 = c2->ce_sibs;
            }
            /* Account for the (-1) frontendDB entry */
            if ( ce->ce_type == Cft_Database ) {
                  if ( ca->be == frontendDB )
                        ibase = 0;
                  else if ( ibase != -1 )
                        ibase++;
            }
            /* Append */
            if ( ibase < 0 ) {
                  for (c2 = *cprev; c2 && c2->ce_type == ce->ce_type;) {
                        cprev = &c2->ce_sibs;
                        c2 = c2->ce_sibs;
                  }
            } else {
            /* Insert */
                  int i;
                  for ( i=0; i<ibase; i++ ) {
                        c2 = *cprev;
                        cprev = &c2->ce_sibs;
                  }
            }
            ce->ce_sibs = *cprev;
            *cprev = ce;
      } else {
            last->ce_kids = ce;
      }

done:
      if ( rc ) {
            if ( (colst[0]->co_type == Cft_Database) && ca->be ) {
                  if ( ca->be != frontendDB )
                        backend_destroy_one( ca->be, 1 );
            } else if ( (colst[0]->co_type == Cft_Overlay) && ca->bi ) {
                  overlay_destroy_one( ca->be, (slap_overinst *)ca->bi );
            } else if ( colst[0]->co_type == Cft_Schema ) {
                  schema_destroy_one( ca, colst, nocs, last );
            }
      }
done_noop:

      ch_free( ca->argv );
      if ( colst ) ch_free( colst );
      return rc;
}

#define     BIGTMP      10000
static int
config_rename_add( Operation *op, SlapReply *rs, CfEntryInfo *ce,
      int base, int rebase, int max, int use_ldif )
{
      CfEntryInfo *ce2, *ce3, *cetmp = NULL, *cerem = NULL;
      ConfigType etype = ce->ce_type;
      int count = 0, rc = 0;

      /* Reverse ce list */
      for (ce2 = ce->ce_sibs;ce2;ce2 = ce3) {
            if (ce2->ce_type != etype) {
                  cerem = ce2;
                  break;
            }
            ce3 = ce2->ce_sibs;
            ce2->ce_sibs = cetmp;
            cetmp = ce2;
            count++;
            if ( max && count >= max ) {
                  cerem = ce3;
                  break;
            }
      }

      /* Move original to a temp name until increments are done */
      if ( rebase ) {
            ce->ce_entry->e_private = NULL;
            rc = config_renumber_one( op, rs, ce->ce_parent, ce->ce_entry,
                  base+BIGTMP, 0, use_ldif );
            ce->ce_entry->e_private = ce;
      }
      /* start incrementing */
      for (ce2=cetmp; ce2; ce2=ce3) {
            ce3 = ce2->ce_sibs;
            ce2->ce_sibs = cerem;
            cerem = ce2;
            if ( rc == 0 ) 
                  rc = config_renumber_one( op, rs, ce2->ce_parent, ce2->ce_entry,
                        count+base, 0, use_ldif );
            count--;
      }
      if ( rebase )
            rc = config_renumber_one( op, rs, ce->ce_parent, ce->ce_entry,
                  base, 0, use_ldif );
      return rc;
}

static int
config_rename_del( Operation *op, SlapReply *rs, CfEntryInfo *ce,
      CfEntryInfo *ce2, int old, int use_ldif )
{
      int count = 0;

      /* Renumber original to a temp value */
      ce->ce_entry->e_private = NULL;
      config_renumber_one( op, rs, ce->ce_parent, ce->ce_entry,
            old+BIGTMP, 0, use_ldif );
      ce->ce_entry->e_private = ce;

      /* start decrementing */
      for (; ce2 != ce; ce2=ce2->ce_sibs) {
            config_renumber_one( op, rs, ce2->ce_parent, ce2->ce_entry,
                  count+old, 0, use_ldif );
            count++;
      }
      return config_renumber_one( op, rs, ce->ce_parent, ce->ce_entry,
            count+old, 0, use_ldif );
}

/* Parse an LDAP entry into config directives, then store in underlying
 * database.
 */
static int
config_back_add( Operation *op, SlapReply *rs )
{
      CfBackInfo *cfb;
      int renumber;
      ConfigArgs ca;

      if ( !access_allowed( op, op->ora_e, slap_schema.si_ad_entry,
            NULL, ACL_WADD, NULL )) {
            rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
            goto out;
      }

      cfb = (CfBackInfo *)op->o_bd->be_private;

      /* add opattrs for syncprov */
      {
            char textbuf[SLAP_TEXT_BUFLEN];
            size_t textlen = sizeof textbuf;
            rs->sr_err = entry_schema_check(op, op->ora_e, NULL, 0, 1,
                  &rs->sr_text, textbuf, sizeof( textbuf ) );
            if ( rs->sr_err != LDAP_SUCCESS )
                  goto out;
            rs->sr_err = slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
            if ( rs->sr_err != LDAP_SUCCESS ) {
                  Debug( LDAP_DEBUG_TRACE,
                        LDAP_XSTRING(config_back_add) ": entry failed op attrs add: "
                        "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
                  goto out;
            }
      }

      ldap_pvt_thread_pool_pause( &connection_pool );

      /* Strategy:
       * 1) check for existence of entry
       * 2) check for sibling renumbering
       * 3) perform internal add
       * 4) perform any necessary renumbering
       * 5) store entry in underlying database
       */
      rs->sr_err = config_add_internal( cfb, op->ora_e, &ca, rs, &renumber, op );
      if ( rs->sr_err != LDAP_SUCCESS ) {
            rs->sr_text = ca.cr_msg;
            goto out2;
      }

      if ( renumber ) {
            CfEntryInfo *ce = ca.ca_entry->e_private;
            req_add_s addr = op->oq_add;
            op->o_tag = LDAP_REQ_MODRDN;
            rs->sr_err = config_rename_add( op, rs, ce, ca.valx, 0, 0, cfb->cb_use_ldif );
            op->o_tag = LDAP_REQ_ADD;
            op->oq_add = addr;
            if ( rs->sr_err != LDAP_SUCCESS ) {
                  goto out2;
            }
      }

      if ( cfb->cb_use_ldif ) {
            BackendDB *be = op->o_bd;
            slap_callback sc = { NULL, slap_null_cb, NULL, NULL }, *scp;
            struct berval dn, ndn;

            op->o_bd = &cfb->cb_db;

            /* Save current rootdn; use the underlying DB's rootdn */
            dn = op->o_dn;
            ndn = op->o_ndn;
            op->o_dn = op->o_bd->be_rootdn;
            op->o_ndn = op->o_bd->be_rootndn;

            scp = op->o_callback;
            op->o_callback = &sc;
            op->o_bd->be_add( op, rs );
            op->o_bd = be;
            op->o_callback = scp;
            op->o_dn = dn;
            op->o_ndn = ndn;
      }

out2:;
      ldap_pvt_thread_pool_resume( &connection_pool );

out:;
      send_ldap_result( op, rs );
      slap_graduate_commit_csn( op );
      return rs->sr_err;
}

typedef struct delrec {
      struct delrec *next;
      int nidx;
      int idx[1];
} delrec;

static int
config_modify_add( ConfigTable *ct, ConfigArgs *ca, AttributeDescription *ad,
      int i )
{
      int rc;

      if (ad->ad_type->sat_flags & SLAP_AT_ORDERED &&
            ca->line[0] == '{' )
      {
            char *ptr = strchr( ca->line + 1, '}' );
            if ( ptr ) {
                  char  *next;

                  ca->valx = strtol( ca->line + 1, &next, 0 );
                  if ( next == ca->line + 1 || next[ 0 ] != '}' ) {
                        return LDAP_OTHER;
                  }
                  ca->line = ptr+1;
            }
      }
      rc = config_parse_add( ct, ca, i );
      if ( rc ) {
            rc = LDAP_OTHER;
      }
      return rc;
}

static int
config_modify_internal( CfEntryInfo *ce, Operation *op, SlapReply *rs,
      ConfigArgs *ca )
{
      int rc = LDAP_UNWILLING_TO_PERFORM;
      Modifications *ml;
      Entry *e = ce->ce_entry;
      Attribute *save_attrs = e->e_attrs, *oc_at, *s, *a;
      ConfigTable *ct;
      ConfigOCs **colst;
      int i, nocs;
      char *ptr;
      delrec *dels = NULL, *deltail = NULL;

      oc_at = attr_find( e->e_attrs, slap_schema.si_ad_objectClass );
      if ( !oc_at ) return LDAP_OBJECT_CLASS_VIOLATION;

      colst = count_ocs( oc_at, &nocs );

      /* make sure add/del flags are clear; should always be true */
      for ( s = save_attrs; s; s = s->a_next ) {
            s->a_flags &= ~(SLAP_ATTR_IXADD|SLAP_ATTR_IXDEL);
      }

      e->e_attrs = attrs_dup( e->e_attrs );

      init_config_argv( ca );
      ca->be = ce->ce_be;
      ca->bi = ce->ce_bi;
      ca->ca_private = ce->ce_private;
      ca->ca_entry = e;
      ca->fname = "slapd";
      ca->ca_op = op;
      strcpy( ca->log, "back-config" );

      for (ml = op->orm_modlist; ml; ml=ml->sml_next) {
            ct = config_find_table( colst, nocs, ml->sml_desc, ca );
            switch (ml->sml_op) {
            case LDAP_MOD_DELETE:
            case LDAP_MOD_REPLACE: {
                  BerVarray vals = NULL, nvals = NULL;
                  int *idx = NULL;
                  if ( ct && ( ct->arg_type & ARG_NO_DELETE )) {
                        rc = LDAP_OTHER;
                        snprintf(ca->cr_msg, sizeof(ca->cr_msg), "cannot delete %s",
                              ml->sml_desc->ad_cname.bv_val );
                        goto out_noop;
                  }
                  if ( ml->sml_op == LDAP_MOD_REPLACE ) {
                        vals = ml->sml_values;
                        nvals = ml->sml_nvalues;
                        ml->sml_values = NULL;
                        ml->sml_nvalues = NULL;
                  }
                  /* If we're deleting by values, remember the indexes of the
                   * values we deleted.
                   */
                  if ( ct && ml->sml_values ) {
                        delrec *d;
                        i = ml->sml_numvals;
                        d = ch_malloc( sizeof(delrec) + (i - 1)* sizeof(int));
                        d->nidx = i;
                        d->next = NULL;
                        if ( dels ) {
                              deltail->next = d;
                        } else {
                              dels = d;
                        }
                        deltail = d;
                        idx = d->idx;
                  }
                  rc = modify_delete_vindex(e, &ml->sml_mod,
                        get_permissiveModify(op),
                        &rs->sr_text, ca->cr_msg, sizeof(ca->cr_msg), idx );
                  if ( ml->sml_op == LDAP_MOD_REPLACE ) {
                        ml->sml_values = vals;
                        ml->sml_nvalues = nvals;
                  }
                  if ( !vals )
                        break;
                  }
                  /* FALLTHRU: LDAP_MOD_REPLACE && vals */

            case LDAP_MOD_ADD:
            case SLAP_MOD_SOFTADD: {
                  int mop = ml->sml_op;
                  int navals = -1;
                  ml->sml_op = LDAP_MOD_ADD;
                  if ( ct ) {
                        if ( ct->arg_type & ARG_NO_INSERT ) {
                              Attribute *a = attr_find( e->e_attrs, ml->sml_desc );
                              if ( a ) {
                                    navals = a->a_numvals;
                              }
                        }
                        for ( i=0; !BER_BVISNULL( &ml->sml_values[i] ); i++ ) {
                              if ( ml->sml_values[i].bv_val[0] == '{' &&
                                    navals >= 0 )
                              {
                                    char  *next, *val = ml->sml_values[i].bv_val + 1;
                                    int   j;

                                    j = strtol( val, &next, 0 );
                                    if ( next == val || next[ 0 ] != '}' || j < navals ) {
                                          rc = LDAP_OTHER;
                                          snprintf(ca->cr_msg, sizeof(ca->cr_msg), "cannot insert %s",
                                                ml->sml_desc->ad_cname.bv_val );
                                          goto out_noop;
                                    }
                              }
                              rc = check_vals( ct, ca, ml, 0 );
                              if ( rc ) goto out_noop;
                        }
                  }
                  rc = modify_add_values(e, &ml->sml_mod,
                           get_permissiveModify(op),
                           &rs->sr_text, ca->cr_msg, sizeof(ca->cr_msg) );

                  /* If value already exists, show success here
                   * and ignore this operation down below.
                   */
                  if ( mop == SLAP_MOD_SOFTADD ) {
                        if ( rc == LDAP_TYPE_OR_VALUE_EXISTS )
                              rc = LDAP_SUCCESS;
                        else
                              mop = LDAP_MOD_ADD;
                  }
                  ml->sml_op = mop;
                  break;
                  }

                  break;
            case LDAP_MOD_INCREMENT:      /* FIXME */
                  break;
            default:
                  break;
            }
            if(rc != LDAP_SUCCESS) break;
      }
      
      if ( rc == LDAP_SUCCESS) {
            /* check that the entry still obeys the schema */
            rc = entry_schema_check(op, e, NULL, 0, 0,
                  &rs->sr_text, ca->cr_msg, sizeof(ca->cr_msg) );
      }
      if ( rc ) goto out_noop;

      /* Basic syntax checks are OK. Do the actual settings. */
      for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
            ct = config_find_table( colst, nocs, ml->sml_desc, ca );
            if ( !ct ) continue;

            s = attr_find( save_attrs, ml->sml_desc );
            a = attr_find( e->e_attrs, ml->sml_desc );

            switch (ml->sml_op) {
            case LDAP_MOD_DELETE:
            case LDAP_MOD_REPLACE: {
                  BerVarray vals = NULL, nvals = NULL;
                  delrec *d = NULL;

                  if ( ml->sml_op == LDAP_MOD_REPLACE ) {
                        vals = ml->sml_values;
                        nvals = ml->sml_nvalues;
                        ml->sml_values = NULL;
                        ml->sml_nvalues = NULL;
                  }

                  if ( ml->sml_values )
                        d = dels;

                  /* If we didn't delete the whole attribute */
                  if ( ml->sml_values && a ) {
                        struct berval *mvals;
                        int j;

                        if ( ml->sml_nvalues )
                              mvals = ml->sml_nvalues;
                        else
                              mvals = ml->sml_values;

                        /* use the indexes we saved up above */
                        for (i=0; i < d->nidx; i++) {
                              struct berval bv = *mvals++;
                              if ( a->a_desc->ad_type->sat_flags & SLAP_AT_ORDERED &&
                                    bv.bv_val[0] == '{' ) {
                                    ptr = strchr( bv.bv_val, '}' ) + 1;
                                    bv.bv_len -= ptr - bv.bv_val;
                                    bv.bv_val = ptr;
                              }
                              ca->line = bv.bv_val;
                              ca->valx = d->idx[i];
                              rc = config_del_vals( ct, ca );
                              if ( rc != LDAP_SUCCESS ) break;
                              if ( s )
                                    s->a_flags |= SLAP_ATTR_IXDEL;
                              for (j=i+1; j < d->nidx; j++)
                                    if ( d->idx[j] >d->idx[i] )
                                          d->idx[j]--;
                        }
                  } else {
                        ca->valx = -1;
                        ca->line = NULL;
                        rc = config_del_vals( ct, ca );
                        if ( rc ) rc = LDAP_OTHER;
                        if ( s )
                              s->a_flags |= SLAP_ATTR_IXDEL;
                  }
                  if ( ml->sml_values ) {
                        d = d->next;
                        ch_free( dels );
                        dels = d;
                  }
                  if ( ml->sml_op == LDAP_MOD_REPLACE ) {
                        ml->sml_values = vals;
                        ml->sml_nvalues = nvals;
                  }
                  if ( !vals || rc != LDAP_SUCCESS )
                        break;
                  }
                  /* FALLTHRU: LDAP_MOD_REPLACE && vals */

            case LDAP_MOD_ADD:
                  for (i=0; ml->sml_values[i].bv_val; i++) {
                        ca->line = ml->sml_values[i].bv_val;
                        ca->valx = -1;
                        rc = config_modify_add( ct, ca, ml->sml_desc, i );
                        if ( rc )
                              goto out;
                        a->a_flags |= SLAP_ATTR_IXADD;
                  }
                  break;
            }
      }

out:
      /* Undo for a failed operation */
      if ( rc != LDAP_SUCCESS ) {
            ConfigReply msg = ca->reply;
            for ( s = save_attrs; s; s = s->a_next ) {
                  if ( s->a_flags & SLAP_ATTR_IXDEL ) {
                        s->a_flags &= ~(SLAP_ATTR_IXDEL|SLAP_ATTR_IXADD);
                        ct = config_find_table( colst, nocs, s->a_desc, ca );
                        a = attr_find( e->e_attrs, s->a_desc );
                        if ( a ) {
                              /* clear the flag so the add check below will skip it */
                              a->a_flags &= ~(SLAP_ATTR_IXDEL|SLAP_ATTR_IXADD);
                              ca->valx = -1;
                              ca->line = NULL;
                              config_del_vals( ct, ca );
                        }
                        for ( i=0; !BER_BVISNULL( &s->a_vals[i] ); i++ ) {
                              ca->line = s->a_vals[i].bv_val;
                              ca->valx = -1;
                              config_modify_add( ct, ca, s->a_desc, i );
                        }
                  }
            }
            for ( a = e->e_attrs; a; a = a->a_next ) {
                  if ( a->a_flags & SLAP_ATTR_IXADD ) {
                        ct = config_find_table( colst, nocs, a->a_desc, ca );
                        ca->valx = -1;
                        ca->line = NULL;
                        config_del_vals( ct, ca );
                        s = attr_find( save_attrs, a->a_desc );
                        if ( s ) {
                              s->a_flags &= ~(SLAP_ATTR_IXDEL|SLAP_ATTR_IXADD);
                              for ( i=0; !BER_BVISNULL( &s->a_vals[i] ); i++ ) {
                                    ca->line = s->a_vals[i].bv_val;
                                    ca->valx = -1;
                                    config_modify_add( ct, ca, s->a_desc, i );
                              }
                        }
                  }
            }
            ca->reply = msg;
      }

      if ( ca->cleanup )
            ca->cleanup( ca );
out_noop:
      if ( rc == LDAP_SUCCESS ) {
            attrs_free( save_attrs );
      } else {
            attrs_free( e->e_attrs );
            e->e_attrs = save_attrs;
      }
      ch_free( ca->argv );
      if ( colst ) ch_free( colst );
      while( dels ) {
            deltail = dels->next;
            ch_free( dels );
            dels = deltail;
      }

      return rc;
}

static int
config_back_modify( Operation *op, SlapReply *rs )
{
      CfBackInfo *cfb;
      CfEntryInfo *ce, *last;
      Modifications *ml;
      ConfigArgs ca = {0};
      struct berval rdn;
      char *ptr;
      AttributeDescription *rad = NULL;
      int do_pause = 1;

      cfb = (CfBackInfo *)op->o_bd->be_private;

      ce = config_find_base( cfb->cb_root, &op->o_req_ndn, &last );
      if ( !ce ) {
            if ( last )
                  rs->sr_matched = last->ce_entry->e_name.bv_val;
            rs->sr_err = LDAP_NO_SUCH_OBJECT;
            goto out;
      }

      if ( !acl_check_modlist( op, ce->ce_entry, op->orm_modlist )) {
            rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
            goto out;
      }

      /* Get type of RDN */
      rdn = ce->ce_entry->e_nname;
      ptr = strchr( rdn.bv_val, '=' );
      rdn.bv_len = ptr - rdn.bv_val;
      slap_bv2ad( &rdn, &rad, &rs->sr_text );

      /* Some basic validation... */
      for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
            /* Don't allow Modify of RDN; must use ModRdn for that. */
            if ( ml->sml_desc == rad ) {
                  rs->sr_err = LDAP_NOT_ALLOWED_ON_RDN;
                  rs->sr_text = "Use modrdn to change the entry name";
                  goto out;
            }
            /* Internal update of contextCSN? */
            if ( ml->sml_desc == slap_schema.si_ad_contextCSN && op->o_conn->c_conn_idx == -1 ) {
                  do_pause = 0;
                  break;
            }
      }

      slap_mods_opattrs( op, &op->orm_modlist, 1 );

      if ( do_pause )
            ldap_pvt_thread_pool_pause( &connection_pool );

      /* Strategy:
       * 1) perform the Modify on the cached Entry.
       * 2) verify that the Entry still satisfies the schema.
       * 3) perform the individual config operations.
       * 4) store Modified entry in underlying LDIF backend.
       */
      rs->sr_err = config_modify_internal( ce, op, rs, &ca );
      if ( rs->sr_err ) {
            rs->sr_text = ca.cr_msg;
      } else if ( cfb->cb_use_ldif ) {
            BackendDB *be = op->o_bd;
            slap_callback sc = { NULL, slap_null_cb, NULL, NULL }, *scp;
            struct berval dn, ndn;

            op->o_bd = &cfb->cb_db;

            dn = op->o_dn;
            ndn = op->o_ndn;
            op->o_dn = op->o_bd->be_rootdn;
            op->o_ndn = op->o_bd->be_rootndn;

            scp = op->o_callback;
            op->o_callback = &sc;
            op->o_bd->be_modify( op, rs );
            op->o_bd = be;
            op->o_callback = scp;
            op->o_dn = dn;
            op->o_ndn = ndn;
      }

      if ( do_pause )
            ldap_pvt_thread_pool_resume( &connection_pool );
out:
      send_ldap_result( op, rs );
      slap_graduate_commit_csn( op );
      return rs->sr_err;
}

static int
config_back_modrdn( Operation *op, SlapReply *rs )
{
      CfBackInfo *cfb;
      CfEntryInfo *ce, *last;
      struct berval rdn;
      int ixold, ixnew;

      cfb = (CfBackInfo *)op->o_bd->be_private;

      ce = config_find_base( cfb->cb_root, &op->o_req_ndn, &last );
      if ( !ce ) {
            if ( last )
                  rs->sr_matched = last->ce_entry->e_name.bv_val;
            rs->sr_err = LDAP_NO_SUCH_OBJECT;
            goto out;
      }
      if ( !access_allowed( op, ce->ce_entry, slap_schema.si_ad_entry,
            NULL, ACL_WRITE, NULL )) {
            rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
            goto out;
      }
      { Entry *parent;
            if ( ce->ce_parent )
                  parent = ce->ce_parent->ce_entry;
            else
                  parent = (Entry *)&slap_entry_root;
            if ( !access_allowed( op, parent, slap_schema.si_ad_children,
                  NULL, ACL_WRITE, NULL )) {
                  rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
                  goto out;
            }
      }

      /* We don't allow moving objects to new parents.
       * Generally we only allow reordering a set of ordered entries.
       */
      if ( op->orr_newSup ) {
            rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
            goto out;
      }

      /* If newRDN == oldRDN, quietly succeed */
      dnRdn( &op->o_req_ndn, &rdn );
      if ( dn_match( &rdn, &op->orr_nnewrdn )) {
            rs->sr_err = LDAP_SUCCESS;
            goto out;
      }

      /* Current behavior, subject to change as needed:
       *
       * For backends and overlays, we only allow renumbering.
       * For schema, we allow renaming with the same number.
       * Otherwise, the op is not allowed.
       */

      if ( ce->ce_type == Cft_Schema ) {
            char *ptr1, *ptr2;
            int len;

            /* Can't alter the main cn=schema entry */
            if ( ce->ce_parent->ce_type == Cft_Global ) {
                  rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
                  rs->sr_text = "renaming not allowed for this entry";
                  goto out;
            }

            /* We could support this later if desired */
            ptr1 = ber_bvchr( &rdn, '}' );
            ptr2 = ber_bvchr( &op->orr_newrdn, '}' );
            len = ptr1 - rdn.bv_val;
            if ( len != ptr2 - op->orr_newrdn.bv_val ||
                  strncmp( rdn.bv_val, op->orr_newrdn.bv_val, len )) {
                  rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
                  rs->sr_text = "schema reordering not supported";
                  goto out;
            }
      } else if ( ce->ce_type == Cft_Database ||
            ce->ce_type == Cft_Overlay ) {
            char *ptr1, *ptr2, *iptr1, *iptr2;
            int len1, len2;

            iptr2 = ber_bvchr( &op->orr_newrdn, '=' ) + 1;
            if ( *iptr2 != '{' ) {
                  rs->sr_err = LDAP_NAMING_VIOLATION;
                  rs->sr_text = "new ordering index is required";
                  goto out;
            }
            iptr2++;
            iptr1 = ber_bvchr( &rdn, '{' ) + 1;
            ptr1 = ber_bvchr( &rdn, '}' );
            ptr2 = ber_bvchr( &op->orr_newrdn, '}' );
            if ( !ptr2 ) {
                  rs->sr_err = LDAP_NAMING_VIOLATION;
                  rs->sr_text = "new ordering index is required";
                  goto out;
            }

            len1 = ptr1 - rdn.bv_val;
            len2 = ptr2 - op->orr_newrdn.bv_val;

            if ( rdn.bv_len - len1 != op->orr_newrdn.bv_len - len2 ||
                  strncmp( ptr1, ptr2, rdn.bv_len - len1 )) {
                  rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
                  rs->sr_text = "changing database/overlay type not allowed";
                  goto out;
            }
            ixold = strtol( iptr1, NULL, 0 );
            ixnew = strtol( iptr2, &ptr1, 0 );
            if ( ptr1 != ptr2 || ixold < 0 || ixnew < 0 ) {
                  rs->sr_err = LDAP_NAMING_VIOLATION;
                  goto out;
            }
            /* config DB is always 0, cannot be changed */
            if ( ce->ce_type == Cft_Database && ( ixold == 0 || ixnew == 0 )) {
                  rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
                  goto out;
            }
      } else {
            rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
            rs->sr_text = "renaming not supported for this entry";
            goto out;
      }

      ldap_pvt_thread_pool_pause( &connection_pool );

      if ( ce->ce_type == Cft_Schema ) {
            req_modrdn_s modr = op->oq_modrdn;
            struct berval rdn;
            Attribute *a;
            rs->sr_err = config_rename_attr( rs, ce->ce_entry, &rdn, &a );
            if ( rs->sr_err == LDAP_SUCCESS ) {
                  rs->sr_err = config_rename_one( op, rs, ce->ce_entry,
                        ce->ce_parent, a, &op->orr_newrdn, &op->orr_nnewrdn,
                        cfb->cb_use_ldif );
            }
            op->oq_modrdn = modr;
      } else {
            CfEntryInfo *ce2, *cebase, **cprev, **cbprev, *ceold;
            req_modrdn_s modr = op->oq_modrdn;
            int i;

            /* Advance to first of this type */
            cprev = &ce->ce_parent->ce_kids;
            for ( ce2 = *cprev; ce2 && ce2->ce_type != ce->ce_type; ) {
                  cprev = &ce2->ce_sibs;
                  ce2 = ce2->ce_sibs;
            }
            /* Skip the -1 entry */
            if ( ce->ce_type == Cft_Database ) {
                  cprev = &ce2->ce_sibs;
                  ce2 = ce2->ce_sibs;
            }
            cebase = ce2;
            cbprev = cprev;

            /* Remove from old slot */
            for ( ce2 = *cprev; ce2 && ce2 != ce; ce2 = ce2->ce_sibs )
                  cprev = &ce2->ce_sibs;
            *cprev = ce->ce_sibs;
            ceold = ce->ce_sibs;

            /* Insert into new slot */
            cprev = cbprev;
            for ( i=0; i<ixnew; i++ ) {
                  ce2 = *cprev;
                  if ( !ce2 )
                        break;
                  cprev = &ce2->ce_sibs;
            }
            ce->ce_sibs = *cprev;
            *cprev = ce;

            ixnew = i;

            /* NOTE: These should be encoded in the OC tables, not inline here */
            if ( ce->ce_type == Cft_Database )
                  backend_db_move( ce->ce_be, ixnew );
            else if ( ce->ce_type == Cft_Overlay )
                  overlay_move( ce->ce_be, (slap_overinst *)ce->ce_bi, ixnew );
                  
            if ( ixold < ixnew ) {
                  rs->sr_err = config_rename_del( op, rs, ce, ceold, ixold,
                        cfb->cb_use_ldif );
            } else {
                  rs->sr_err = config_rename_add( op, rs, ce, ixnew, 1,
                        ixold - ixnew, cfb->cb_use_ldif );
            }
            op->oq_modrdn = modr;
      }

      ldap_pvt_thread_pool_resume( &connection_pool );
out:
      send_ldap_result( op, rs );
      return rs->sr_err;
}

static int
config_back_delete( Operation *op, SlapReply *rs )
{
      send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM, NULL );
      return rs->sr_err;
}

static int
config_back_search( Operation *op, SlapReply *rs )
{
      CfBackInfo *cfb;
      CfEntryInfo *ce, *last;
      slap_mask_t mask;

      cfb = (CfBackInfo *)op->o_bd->be_private;

      ce = config_find_base( cfb->cb_root, &op->o_req_ndn, &last );
      if ( !ce ) {
            if ( last )
                  rs->sr_matched = last->ce_entry->e_name.bv_val;
            rs->sr_err = LDAP_NO_SUCH_OBJECT;
            goto out;
      }
      if ( !access_allowed_mask( op, ce->ce_entry, slap_schema.si_ad_entry, NULL,
            ACL_SEARCH, NULL, &mask ))
      {
            if ( !ACL_GRANT( mask, ACL_DISCLOSE )) {
                  rs->sr_err = LDAP_NO_SUCH_OBJECT;
            } else {
                  rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
            }
            goto out;
      }
      switch ( op->ors_scope ) {
      case LDAP_SCOPE_BASE:
      case LDAP_SCOPE_SUBTREE:
            config_send( op, rs, ce, 0 );
            break;
            
      case LDAP_SCOPE_ONELEVEL:
            for (ce = ce->ce_kids; ce; ce=ce->ce_sibs) {
                  config_send( op, rs, ce, 1 );
            }
            break;
      }
            
      rs->sr_err = LDAP_SUCCESS;
out:
      send_ldap_result( op, rs );
      return 0;
}

/* no-op, we never free entries */
int config_entry_release(
      Operation *op,
      Entry *e,
      int rw )
{
      if ( !e->e_private ) {
            entry_free( e );
      }
      return LDAP_SUCCESS;
}

/* return LDAP_SUCCESS IFF we can retrieve the specified entry.
 */
int config_back_entry_get(
      Operation *op,
      struct berval *ndn,
      ObjectClass *oc,
      AttributeDescription *at,
      int rw,
      Entry **ent )
{
      CfBackInfo *cfb;
      CfEntryInfo *ce, *last;
      int rc = LDAP_NO_SUCH_OBJECT;

      cfb = (CfBackInfo *)op->o_bd->be_private;

      ce = config_find_base( cfb->cb_root, ndn, &last );
      if ( ce ) {
            *ent = ce->ce_entry;
            if ( *ent ) {
                  rc = LDAP_SUCCESS;
                  if ( oc && !is_entry_objectclass_or_sub( *ent, oc ) ) {
                        rc = LDAP_NO_SUCH_ATTRIBUTE;
                        *ent = NULL;
                  }
            }
      }

      return rc;
}

static void
config_build_attrs( Entry *e, AttributeType **at, AttributeDescription *ad,
      ConfigTable *ct, ConfigArgs *c )
{
      int i, rc;

      for (; at && *at; at++) {
            /* Skip the naming attr */
            if ((*at)->sat_ad == ad || (*at)->sat_ad == slap_schema.si_ad_cn )
                  continue;
            for (i=0;ct[i].name;i++) {
                  if (ct[i].ad == (*at)->sat_ad) {
                        rc = config_get_vals(&ct[i], c);
                        /* NOTE: tolerate that config_get_vals()
                         * returns success with no values */
                        if (rc == LDAP_SUCCESS && c->rvalue_vals != NULL ) {
                              if ( c->rvalue_nvals )
                                    attr_merge(e, ct[i].ad, c->rvalue_vals,
                                          c->rvalue_nvals);
                              else
                                    attr_merge_normalize(e, ct[i].ad,
                                          c->rvalue_vals, NULL);
                              ber_bvarray_free( c->rvalue_nvals );
                              ber_bvarray_free( c->rvalue_vals );
                        }
                        break;
                  }
            }
      }
}

Entry *
config_build_entry( Operation *op, SlapReply *rs, CfEntryInfo *parent,
      ConfigArgs *c, struct berval *rdn, ConfigOCs *main, ConfigOCs *extra )
{
      Entry *e = entry_alloc();
      CfEntryInfo *ce = ch_calloc( 1, sizeof(CfEntryInfo) );
      struct berval val;
      struct berval ad_name;
      AttributeDescription *ad = NULL;
      int rc;
      char *ptr;
      const char *text;
      Attribute *oc_at;
      struct berval pdn;
      ObjectClass *oc;
      CfEntryInfo *ceprev = NULL;

      Debug( LDAP_DEBUG_TRACE, "config_build_entry: \"%s\"\n", rdn->bv_val, 0, 0);
      e->e_private = ce;
      ce->ce_entry = e;
      ce->ce_type = main->co_type;
      ce->ce_parent = parent;
      if ( parent ) {
            pdn = parent->ce_entry->e_nname;
            if ( parent->ce_kids )
                  for ( ceprev = parent->ce_kids; ceprev->ce_sibs &&
                        ceprev->ce_type <= ce->ce_type;
                        ceprev = ceprev->ce_sibs );
      } else {
            BER_BVZERO( &pdn );
      }

      ce->ce_private = c->ca_private;
      ce->ce_be = c->be;
      ce->ce_bi = c->bi;

      build_new_dn( &e->e_name, &pdn, rdn, NULL );
      ber_dupbv( &e->e_nname, &e->e_name );

      attr_merge_normalize_one(e, slap_schema.si_ad_objectClass,
            main->co_name, NULL );
      if ( extra )
            attr_merge_normalize_one(e, slap_schema.si_ad_objectClass,
                  extra->co_name, NULL );
      ptr = strchr(rdn->bv_val, '=');
      ad_name.bv_val = rdn->bv_val;
      ad_name.bv_len = ptr - rdn->bv_val;
      rc = slap_bv2ad( &ad_name, &ad, &text );
      if ( rc ) {
            return NULL;
      }
      val.bv_val = ptr+1;
      val.bv_len = rdn->bv_len - (val.bv_val - rdn->bv_val);
      attr_merge_normalize_one(e, ad, &val, NULL );

      oc = main->co_oc;
      c->table = main->co_type;
      if ( oc->soc_required )
            config_build_attrs( e, oc->soc_required, ad, main->co_table, c );

      if ( oc->soc_allowed )
            config_build_attrs( e, oc->soc_allowed, ad, main->co_table, c );

      if ( extra ) {
            oc = extra->co_oc;
            c->table = extra->co_type;
            if ( oc->soc_required )
                  config_build_attrs( e, oc->soc_required, ad, extra->co_table, c );

            if ( oc->soc_allowed )
                  config_build_attrs( e, oc->soc_allowed, ad, extra->co_table, c );
      }

      oc_at = attr_find( e->e_attrs, slap_schema.si_ad_objectClass );
      rc = structural_class(oc_at->a_vals, &oc, NULL, &text, c->cr_msg,
            sizeof(c->cr_msg), op ? op->o_tmpmemctx : NULL );
      attr_merge_normalize_one(e, slap_schema.si_ad_structuralObjectClass, &oc->soc_cname, NULL );
      if ( op ) {
            op->ora_e = e;
            op->ora_modlist = NULL;
            slap_add_opattrs( op, NULL, NULL, 0, 0 );
            if ( !op->o_noop ) {
                  op->o_bd->be_add( op, rs );
                  if ( ( rs->sr_err != LDAP_SUCCESS ) 
                              && (rs->sr_err != LDAP_ALREADY_EXISTS) ) {
                        return NULL;
                  }
            }
      }
      if ( ceprev ) {
            ce->ce_sibs = ceprev->ce_sibs;
            ceprev->ce_sibs = ce;
      } else if ( parent ) {
            ce->ce_sibs = parent->ce_kids;
            parent->ce_kids = ce;
      }

      return e;
}

static int
config_build_schema_inc( ConfigArgs *c, CfEntryInfo *ceparent,
      Operation *op, SlapReply *rs )
{
      Entry *e;
      ConfigFile *cf = c->ca_private;
      char *ptr;
      struct berval bv;

      for (; cf; cf=cf->c_sibs, c->depth++) {
            if ( !cf->c_at_head && !cf->c_cr_head && !cf->c_oc_head &&
                  !cf->c_om_head ) continue;
            c->value_dn.bv_val = c->log;
            LUTIL_SLASHPATH( cf->c_file.bv_val );
            bv.bv_val = strrchr(cf->c_file.bv_val, LDAP_DIRSEP[0]);
            if ( !bv.bv_val ) {
                  bv = cf->c_file;
            } else {
                  bv.bv_val++;
                  bv.bv_len = cf->c_file.bv_len - (bv.bv_val - cf->c_file.bv_val);
            }
            ptr = strchr( bv.bv_val, '.' );
            if ( ptr )
                  bv.bv_len = ptr - bv.bv_val;
            c->value_dn.bv_len = snprintf(c->value_dn.bv_val, sizeof( c->log ), "cn=" SLAP_X_ORDERED_FMT, c->depth);
            if ( c->value_dn.bv_len >= sizeof( c->log ) ) {
                  /* FIXME: how can indicate error? */
                  return -1;
            }
            strncpy( c->value_dn.bv_val + c->value_dn.bv_len, bv.bv_val,
                  bv.bv_len );
            c->value_dn.bv_len += bv.bv_len;
            c->value_dn.bv_val[c->value_dn.bv_len] ='\0';

            c->ca_private = cf;
            e = config_build_entry( op, rs, ceparent, c, &c->value_dn,
                  &CFOC_SCHEMA, NULL );
            if ( !e ) {
                  return -1;
            } else if ( e && cf->c_kids ) {
                  c->ca_private = cf->c_kids;
                  config_build_schema_inc( c, e->e_private, op, rs );
            }
      }
      return 0;
}

#ifdef SLAPD_MODULES

static int
config_build_modules( ConfigArgs *c, CfEntryInfo *ceparent,
      Operation *op, SlapReply *rs )
{
      int i;
      ModPaths *mp;

      for (i=0, mp=&modpaths; mp; mp=mp->mp_next, i++) {
            if ( BER_BVISNULL( &mp->mp_path ) && !mp->mp_loads )
                  continue;
            c->value_dn.bv_val = c->log;
            c->value_dn.bv_len = snprintf(c->value_dn.bv_val, sizeof( c->log ), "cn=module" SLAP_X_ORDERED_FMT, i);
            if ( c->value_dn.bv_len >= sizeof( c->log ) ) {
                  /* FIXME: how can indicate error? */
                  return -1;
            }
            c->ca_private = mp;
            if ( ! config_build_entry( op, rs, ceparent, c, &c->value_dn, &CFOC_MODULE, NULL )) {
                  return -1;
            }
      }
        return 0;
}
#endif

static int
config_check_schema(Operation *op, CfBackInfo *cfb)
{
      struct berval schema_dn = BER_BVC(SCHEMA_RDN "," CONFIG_RDN);
      ConfigArgs c = {0};
      CfEntryInfo *ce, *last;
      Entry *e;

      /* If there's no root entry, we must be in the midst of converting */
      if ( !cfb->cb_root )
            return 0;

      /* Make sure the main schema entry exists */
      ce = config_find_base( cfb->cb_root, &schema_dn, &last );
      if ( ce ) {
            Attribute *a;
            struct berval *bv;

            e = ce->ce_entry;

            /* Make sure it's up to date */
            if ( cf_om_tail != om_sys_tail ) {
                  a = attr_find( e->e_attrs, cfAd_om );
                  if ( a ) {
                        if ( a->a_nvals != a->a_vals )
                              ber_bvarray_free( a->a_nvals );
                        ber_bvarray_free( a->a_vals );
                        a->a_vals = NULL;
                        a->a_nvals = NULL;
                        a->a_numvals = 0;
                  }
                  oidm_unparse( &bv, NULL, NULL, 1 );
                  attr_merge_normalize( e, cfAd_om, bv, NULL );
                  ber_bvarray_free( bv );
                  cf_om_tail = om_sys_tail;
            }
            if ( cf_at_tail != at_sys_tail ) {
                  a = attr_find( e->e_attrs, cfAd_attr );
                  if ( a ) {
                        if ( a->a_nvals != a->a_vals )
                              ber_bvarray_free( a->a_nvals );
                        ber_bvarray_free( a->a_vals );
                        a->a_vals = NULL;
                        a->a_nvals = NULL;
                        a->a_numvals = 0;
                  }
                  at_unparse( &bv, NULL, NULL, 1 );
                  attr_merge_normalize( e, cfAd_attr, bv, NULL );
                  ber_bvarray_free( bv );
                  cf_at_tail = at_sys_tail;
            }
            if ( cf_oc_tail != oc_sys_tail ) {
                  a = attr_find( e->e_attrs, cfAd_oc );
                  if ( a ) {
                        if ( a->a_nvals != a->a_vals )
                              ber_bvarray_free( a->a_nvals );
                        ber_bvarray_free( a->a_vals );
                        a->a_vals = NULL;
                        a->a_nvals = NULL;
                        a->a_numvals = 0;
                  }
                  oc_unparse( &bv, NULL, NULL, 1 );
                  attr_merge_normalize( e, cfAd_oc, bv, NULL );
                  ber_bvarray_free( bv );
                  cf_oc_tail = oc_sys_tail;
            }
      } else {
            SlapReply rs = {REP_RESULT};
            c.ca_private = NULL;
            e = config_build_entry( op, &rs, cfb->cb_root, &c, &schema_rdn,
                  &CFOC_SCHEMA, NULL );
            if ( !e ) {
                  return -1;
            }
            ce = e->e_private;
            ce->ce_private = cfb->cb_config;
            cf_at_tail = at_sys_tail;
            cf_oc_tail = oc_sys_tail;
            cf_om_tail = om_sys_tail;
      }
      return 0;
}

static const char *defacl[] = {
      NULL, "to", "*", "by", "*", "none", NULL
};

static int
config_back_db_open( BackendDB *be, ConfigReply *cr )
{
      CfBackInfo *cfb = be->be_private;
      struct berval rdn;
      Entry *e, *parent;
      CfEntryInfo *ce, *ceparent;
      int i, unsupp = 0;
      BackendInfo *bi;
      ConfigArgs c;
      Connection conn = {0};
      OperationBuffer opbuf;
      Operation *op;
      slap_callback cb = { NULL, slap_null_cb, NULL, NULL };
      SlapReply rs = {REP_RESULT};
      void *thrctx = NULL;

      Debug( LDAP_DEBUG_TRACE, "config_back_db_open\n", 0, 0, 0);

      /* If we have no explicitly configured ACLs, don't just use
       * the global ACLs. Explicitly deny access to everything.
       */
      if ( frontendDB->be_acl && be->be_acl == frontendDB->be_acl ) {
            parse_acl(be, "config_back_db_open", 0, 6, (char **)defacl, 0 );
      }

      thrctx = ldap_pvt_thread_pool_context();
      connection_fake_init( &conn, &opbuf, thrctx );
      op = &opbuf.ob_op;

      op->o_tag = LDAP_REQ_ADD;
      op->o_callback = &cb;
      op->o_bd = &cfb->cb_db;
      op->o_dn = op->o_bd->be_rootdn;
      op->o_ndn = op->o_bd->be_rootndn;

      if ( !cfb->cb_use_ldif ) {
            op->o_noop = 1;
      }

      /* If we read the config from back-ldif, do some quick sanity checks */
      if ( cfb->cb_got_ldif ) {
            return config_check_schema( op, cfb );
      }

      /* create root of tree */
      rdn = config_rdn;
      c.ca_private = cfb->cb_config;
      c.be = frontendDB;
      e = config_build_entry( op, &rs, NULL, &c, &rdn, &CFOC_GLOBAL, NULL );
      if ( !e ) {
            return -1;
      }
      ce = e->e_private;
      cfb->cb_root = ce;

      parent = e;
      ceparent = ce;

#ifdef SLAPD_MODULES
      /* Create Module nodes... */
      if ( modpaths.mp_loads ) {
            if ( config_build_modules( &c, ceparent, op, &rs ) ){
                  return -1;
            }
      }
#endif

      /* Create schema nodes... cn=schema will contain the hardcoded core
       * schema, read-only. Child objects will contain runtime loaded schema
       * files.
       */
      rdn = schema_rdn;
      c.ca_private = NULL;
      e = config_build_entry( op, &rs, ceparent, &c, &rdn, &CFOC_SCHEMA, NULL );
      if ( !e ) {
            return -1;
      }
      ce = e->e_private;
      ce->ce_private = cfb->cb_config;
      cf_at_tail = at_sys_tail;
      cf_oc_tail = oc_sys_tail;
      cf_om_tail = om_sys_tail;

      /* Create schema nodes for included schema... */
      if ( cfb->cb_config->c_kids ) {
            c.depth = 0;
            c.ca_private = cfb->cb_config->c_kids;
            if (config_build_schema_inc( &c, ce, op, &rs )) {
                  return -1;
            }
      }

      /* Create backend nodes. Skip if they don't provide a cf_table.
       * There usually aren't any of these.
       */
      
      c.line = 0;
      LDAP_STAILQ_FOREACH( bi, &backendInfo, bi_next) {
            if (!bi->bi_cf_ocs) {
                  /* If it only supports the old config mech, complain. */
                  if ( bi->bi_config ) {
                        Debug( LDAP_DEBUG_ANY,
                              "WARNING: No dynamic config support for backend %s.\n",
                              bi->bi_type, 0, 0 );
                        unsupp++;
                  }
                  continue;
            }
            if (!bi->bi_private) continue;

            rdn.bv_val = c.log;
            rdn.bv_len = snprintf(rdn.bv_val, sizeof( c.log ),
                  "%s=%s", cfAd_backend->ad_cname.bv_val, bi->bi_type);
            if ( rdn.bv_len >= sizeof( c.log ) ) {
                  /* FIXME: holler ... */ ;
            }
            c.bi = bi;
            e = config_build_entry( op, &rs, ceparent, &c, &rdn, &CFOC_BACKEND,
                  bi->bi_cf_ocs );
            if ( !e ) {
                  return -1;
            }
      }

      /* Create database nodes... */
      frontendDB->be_cf_ocs = &CFOC_FRONTEND;
      LDAP_STAILQ_NEXT(frontendDB, be_next) = LDAP_STAILQ_FIRST(&backendDB);
      for ( i = -1, be = frontendDB ; be;
            i++, be = LDAP_STAILQ_NEXT( be, be_next )) {
            slap_overinfo *oi = NULL;

            if ( overlay_is_over( be )) {
                  oi = be->bd_info->bi_private;
                  bi = oi->oi_orig;
            } else {
                  bi = be->bd_info;
            }

            /* If this backend supports the old config mechanism, but not
             * the new mech, complain.
             */
            if ( !be->be_cf_ocs && bi->bi_db_config ) {
                  Debug( LDAP_DEBUG_ANY,
                        "WARNING: No dynamic config support for database %s.\n",
                        bi->bi_type, 0, 0 );
                  unsupp++;
            }
            rdn.bv_val = c.log;
            rdn.bv_len = snprintf(rdn.bv_val, sizeof( c.log ),
                  "%s=" SLAP_X_ORDERED_FMT "%s", cfAd_database->ad_cname.bv_val,
                  i, bi->bi_type);
            if ( rdn.bv_len >= sizeof( c.log ) ) {
                  /* FIXME: holler ... */ ;
            }
            c.be = be;
            c.bi = bi;
            e = config_build_entry( op, &rs, ceparent, &c, &rdn, &CFOC_DATABASE,
                  be->be_cf_ocs );
            if ( !e ) {
                  return -1;
            }
            ce = e->e_private;
            if ( be->be_cf_ocs && be->be_cf_ocs->co_cfadd )
                  be->be_cf_ocs->co_cfadd( op, &rs, e, &c );
            /* Iterate through overlays */
            if ( oi ) {
                  slap_overinst *on;
                  Entry *oe;
                  int j;
                  voidList *vl, *v0 = NULL;

                  /* overlays are in LIFO order, must reverse stack */
                  for (on=oi->oi_list; on; on=on->on_next) {
                        vl = ch_malloc( sizeof( voidList ));
                        vl->vl_next = v0;
                        v0 = vl;
                        vl->vl_ptr = on;
                  }
                  for (j=0; vl; j++,vl=v0) {
                        on = vl->vl_ptr;
                        v0 = vl->vl_next;
                        ch_free( vl );
                        if ( on->on_bi.bi_db_config && !on->on_bi.bi_cf_ocs ) {
                              Debug( LDAP_DEBUG_ANY,
                                    "WARNING: No dynamic config support for overlay %s.\n",
                                    on->on_bi.bi_type, 0, 0 );
                              unsupp++;
                        }
                        rdn.bv_val = c.log;
                        rdn.bv_len = snprintf(rdn.bv_val, sizeof( c.log ),
                              "%s=" SLAP_X_ORDERED_FMT "%s",
                              cfAd_overlay->ad_cname.bv_val, j, on->on_bi.bi_type );
                        if ( rdn.bv_len >= sizeof( c.log ) ) {
                              /* FIXME: holler ... */ ;
                        }
                        c.be = be;
                        c.bi = &on->on_bi;
                        oe = config_build_entry( op, &rs, ce, &c, &rdn,
                              &CFOC_OVERLAY, c.bi->bi_cf_ocs );
                        if ( !oe ) {
                              return -1;
                        }
                        if ( c.bi->bi_cf_ocs && c.bi->bi_cf_ocs->co_cfadd )
                              c.bi->bi_cf_ocs->co_cfadd( op, &rs, oe, &c );
                  }
            }
      }
      if ( thrctx )
            ldap_pvt_thread_pool_context_reset( thrctx );

      if ( unsupp  && cfb->cb_use_ldif ) {
            Debug( LDAP_DEBUG_ANY, "\nWARNING: The converted cn=config "
                  "directory is incomplete and may not work.\n\n", 0, 0, 0 );
      }

      return 0;
}

static void
cfb_free_cffile( ConfigFile *cf )
{
      ConfigFile *next;

      for (; cf; cf=next) {
            next = cf->c_sibs;
            if ( cf->c_kids )
                  cfb_free_cffile( cf->c_kids );
            ch_free( cf->c_file.bv_val );
            ber_bvarray_free( cf->c_dseFiles );
            ch_free( cf );
      }
}

static void
cfb_free_entries( CfEntryInfo *ce )
{
      CfEntryInfo *next;

      for (; ce; ce=next) {
            next = ce->ce_sibs;
            if ( ce->ce_kids )
                  cfb_free_entries( ce->ce_kids );
            ce->ce_entry->e_private = NULL;
            entry_free( ce->ce_entry );
            ch_free( ce );
      }
}

static int
config_back_db_close( BackendDB *be, ConfigReply *cr )
{
      CfBackInfo *cfb = be->be_private;

      cfb_free_entries( cfb->cb_root );
      cfb->cb_root = NULL;

      if ( cfb->cb_db.bd_info ) {
            backend_shutdown( &cfb->cb_db );
      }

      return 0;
}

static int
config_back_db_destroy( BackendDB *be, ConfigReply *cr )
{
      CfBackInfo *cfb = be->be_private;

      cfb_free_cffile( cfb->cb_config );

      ch_free( cfdir.bv_val );

      avl_free( CfOcTree, NULL );

      if ( cfb->cb_db.bd_info ) {
            cfb->cb_db.be_suffix = NULL;
            cfb->cb_db.be_nsuffix = NULL;
            BER_BVZERO( &cfb->cb_db.be_rootdn );
            BER_BVZERO( &cfb->cb_db.be_rootndn );

            backend_destroy_one( &cfb->cb_db, 0 );
      }

      loglevel_destroy();

      return 0;
}

static int
config_back_db_init( BackendDB *be, ConfigReply* cr )
{
      struct berval dn;
      CfBackInfo *cfb;

      cfb = &cfBackInfo;
      cfb->cb_config = ch_calloc( 1, sizeof(ConfigFile));
      cfn = cfb->cb_config;
      be->be_private = cfb;

      ber_dupbv( &be->be_rootdn, &config_rdn );
      ber_dupbv( &be->be_rootndn, &be->be_rootdn );
      ber_dupbv( &dn, &be->be_rootdn );
      ber_bvarray_add( &be->be_suffix, &dn );
      ber_dupbv( &dn, &be->be_rootdn );
      ber_bvarray_add( &be->be_nsuffix, &dn );

      /* Hide from namingContexts */
      SLAP_BFLAGS(be) |= SLAP_BFLAG_CONFIG;

      return 0;
}

static int
config_back_destroy( BackendInfo *bi )
{
      ldif_must_b64_encode_release();
      return 0;
}

static int
config_tool_entry_open( BackendDB *be, int mode )
{
      CfBackInfo *cfb = be->be_private;
      BackendInfo *bi = cfb->cb_db.bd_info;

      if ( bi && bi->bi_tool_entry_open )
            return bi->bi_tool_entry_open( &cfb->cb_db, mode );
      else
            return -1;
      
}

static int
config_tool_entry_close( BackendDB *be )
{
      CfBackInfo *cfb = be->be_private;
      BackendInfo *bi = cfb->cb_db.bd_info;

      if ( bi && bi->bi_tool_entry_close )
            return bi->bi_tool_entry_close( &cfb->cb_db );
      else
            return -1;
}

static ID
config_tool_entry_first( BackendDB *be )
{
      CfBackInfo *cfb = be->be_private;
      BackendInfo *bi = cfb->cb_db.bd_info;

      if ( bi && bi->bi_tool_entry_first )
            return bi->bi_tool_entry_first( &cfb->cb_db );
      else
            return NOID;
}

static ID
config_tool_entry_next( BackendDB *be )
{
      CfBackInfo *cfb = be->be_private;
      BackendInfo *bi = cfb->cb_db.bd_info;

      if ( bi && bi->bi_tool_entry_next )
            return bi->bi_tool_entry_next( &cfb->cb_db );
      else
            return NOID;
}

static Entry *
config_tool_entry_get( BackendDB *be, ID id )
{
      CfBackInfo *cfb = be->be_private;
      BackendInfo *bi = cfb->cb_db.bd_info;

      if ( bi && bi->bi_tool_entry_get )
            return bi->bi_tool_entry_get( &cfb->cb_db, id );
      else
            return NULL;
}

static int entry_put_got_frontend=0;
static int entry_put_got_config=0;
static ID
config_tool_entry_put( BackendDB *be, Entry *e, struct berval *text )
{
      CfBackInfo *cfb = be->be_private;
      BackendInfo *bi = cfb->cb_db.bd_info;
      int rc;
      struct berval rdn, vals[ 2 ];
      ConfigArgs ca;
      OperationBuffer opbuf;
      Entry *ce;
      Connection conn = {0};
      Operation *op = NULL;
      void *thrctx;
      int isFrontend = 0;

      /* Create entry for frontend database if it does not exist already */
      if ( !entry_put_got_frontend ) {
            if ( !strncmp( e->e_nname.bv_val, "olcDatabase", 
                        STRLENOF( "olcDatabase" ))) {
                  if ( strncmp( e->e_nname.bv_val + 
                              STRLENOF( "olcDatabase" ), "={-1}frontend",
                              STRLENOF( "={-1}frontend" )) && 
                              strncmp( e->e_nname.bv_val + 
                              STRLENOF( "olcDatabase" ), "=frontend",
                              STRLENOF( "=frontend" ))) {
                        vals[1].bv_len = 0;
                        vals[1].bv_val = NULL;
                        memset( &ca, 0, sizeof(ConfigArgs));
                        ca.be = frontendDB;
                        ca.bi = frontendDB->bd_info;
                        ca.be->be_cf_ocs = &CFOC_FRONTEND;
                        rdn.bv_val = ca.log;
                        rdn.bv_len = snprintf(rdn.bv_val, sizeof( ca.log ),
                              "%s=" SLAP_X_ORDERED_FMT "%s",
                              cfAd_database->ad_cname.bv_val, -1,
                              ca.bi->bi_type);
                        ce = config_build_entry( NULL, NULL, cfb->cb_root, &ca, &rdn,
                                    &CFOC_DATABASE, ca.be->be_cf_ocs );
                        thrctx = ldap_pvt_thread_pool_context();
                        connection_fake_init2( &conn, &opbuf, thrctx,0 );
                        op = &opbuf.ob_op;
                        op->o_bd = &cfb->cb_db;
                        op->o_tag = LDAP_REQ_ADD;
                        op->ora_e = ce;
                        op->o_dn = be->be_rootdn;
                        op->o_ndn = be->be_rootndn;
                        rc = slap_add_opattrs(op, NULL, NULL, 0, 0);
                        if ( rc != LDAP_SUCCESS ) {
                              text->bv_val = "autocreation of \"olcDatabase={-1}frontend\" failed";
                              text->bv_len = STRLENOF("autocreation of \"olcDatabase={-1}frontend\" failed");
                              return NOID;
                        }

                        if ( ce && bi && bi->bi_tool_entry_put && 
                                    bi->bi_tool_entry_put( &cfb->cb_db, ce, text ) != NOID ) {
                              entry_put_got_frontend++;
                        } else {
                              text->bv_val = "autocreation of \"olcDatabase={-1}frontend\" failed";
                              text->bv_len = STRLENOF("autocreation of \"olcDatabase={-1}frontend\" failed");
                              return NOID;
                        }
                  } else {
                        entry_put_got_frontend++;
                        isFrontend = 1;
                  }
            }
      }
      /* Create entry for config database if it does not exist already */
      if ( !entry_put_got_config && !isFrontend ) {
            if ( !strncmp( e->e_nname.bv_val, "olcDatabase",
                        STRLENOF( "olcDatabase" ))) {
                  if ( strncmp( e->e_nname.bv_val +
                              STRLENOF( "olcDatabase" ), "={0}config",
                              STRLENOF( "={0}config" )) &&
                              strncmp( e->e_nname.bv_val +
                              STRLENOF( "olcDatabase" ), "=config",
                              STRLENOF( "=config" )) ) {
                        vals[1].bv_len = 0;
                        vals[1].bv_val = NULL;
                        memset( &ca, 0, sizeof(ConfigArgs));
                        ca.be = LDAP_STAILQ_FIRST( &backendDB );
                        ca.bi = ca.be->bd_info;
                        rdn.bv_val = ca.log;
                        rdn.bv_len = snprintf(rdn.bv_val, sizeof( ca.log ),
                              "%s=" SLAP_X_ORDERED_FMT "%s",
                              cfAd_database->ad_cname.bv_val, 0,
                              ca.bi->bi_type);
                        ce = config_build_entry( NULL, NULL, cfb->cb_root, &ca, &rdn, &CFOC_DATABASE,
                                    ca.be->be_cf_ocs );
                        if ( ! op ) {
                              thrctx = ldap_pvt_thread_pool_context();
                              connection_fake_init2( &conn, &opbuf, thrctx,0 );
                              op = &opbuf.ob_op;
                              op->o_bd = &cfb->cb_db;
                              op->o_tag = LDAP_REQ_ADD;
                              op->o_dn = be->be_rootdn;
                              op->o_ndn = be->be_rootndn;
                        }
                        op->ora_e = ce;
                        rc = slap_add_opattrs(op, NULL, NULL, 0, 0);
                        if ( rc != LDAP_SUCCESS ) {
                              text->bv_val = "autocreation of \"olcDatabase={0}config\" failed";
                              text->bv_len = STRLENOF("autocreation of \"olcDatabase={0}config\" failed");
                              return NOID;
                        }
                        if (ce && bi && bi->bi_tool_entry_put &&
                                    bi->bi_tool_entry_put( &cfb->cb_db, ce, text ) != NOID ) {
                              entry_put_got_config++;
                        } else {
                              text->bv_val = "autocreation of \"olcDatabase={0}config\" failed";
                              text->bv_len = STRLENOF("autocreation of \"olcDatabase={0}config\" failed");
                              return NOID;
                        }
                  } else {
                        entry_put_got_config++;
                  }
            }
      }
      if ( bi && bi->bi_tool_entry_put &&
            config_add_internal( cfb, e, &ca, NULL, NULL, NULL ) == 0 )
            return bi->bi_tool_entry_put( &cfb->cb_db, e, text );
      else
            return NOID;
}

static struct {
      char *name;
      AttributeDescription **desc;
} ads[] = {
      { "attribute", &cfAd_attr },
      { "backend", &cfAd_backend },
      { "database", &cfAd_database },
      { "include", &cfAd_include },
      { "objectclass", &cfAd_oc },
      { "objectidentifier", &cfAd_om },
      { "overlay", &cfAd_overlay },
      { NULL, NULL }
};

/* Notes:
 *   add / delete: all types that may be added or deleted must use an
 * X-ORDERED attributeType for their RDN. Adding and deleting entries
 * should automatically renumber the index of any siblings as needed,
 * so that no gaps in the numbering sequence exist after the add/delete
 * is completed.
 *   What can be added:
 *     schema objects
 *     backend objects for backend-specific config directives
 *     database objects
 *     overlay objects
 *
 *   delete: probably no support this time around.
 *
 *   modrdn: generally not done. Will be invoked automatically by add/
 * delete to update numbering sequence. Perform as an explicit operation
 * so that the renumbering effect may be replicated. Subtree rename must
 * be supported, since renumbering a database will affect all its child
 * overlays.
 *
 *  modify: must be fully supported. 
 */

int
config_back_initialize( BackendInfo *bi )
{
      ConfigTable       *ct = config_back_cf_table;
      ConfigArgs ca;
      char              *argv[4];
      int               i;
      AttributeDescription    *ad = NULL;
      const char        *text;
      static char       *controls[] = {
            LDAP_CONTROL_MANAGEDSAIT,
            NULL
      };

      /* Make sure we don't exceed the bits reserved for userland */
      config_check_userland( CFG_LAST );

      bi->bi_controls = controls;

      bi->bi_open = 0;
      bi->bi_close = 0;
      bi->bi_config = 0;
      bi->bi_destroy = config_back_destroy;

      bi->bi_db_init = config_back_db_init;
      bi->bi_db_config = 0;
      bi->bi_db_open = config_back_db_open;
      bi->bi_db_close = config_back_db_close;
      bi->bi_db_destroy = config_back_db_destroy;

      bi->bi_op_bind = config_back_bind;
      bi->bi_op_unbind = 0;
      bi->bi_op_search = config_back_search;
      bi->bi_op_compare = 0;
      bi->bi_op_modify = config_back_modify;
      bi->bi_op_modrdn = config_back_modrdn;
      bi->bi_op_add = config_back_add;
      bi->bi_op_delete = config_back_delete;
      bi->bi_op_abandon = 0;

      bi->bi_extended = 0;

      bi->bi_chk_referrals = 0;

      bi->bi_access_allowed = slap_access_allowed;

      bi->bi_connection_init = 0;
      bi->bi_connection_destroy = 0;

      bi->bi_entry_release_rw = config_entry_release;
      bi->bi_entry_get_rw = config_back_entry_get;

      bi->bi_tool_entry_open = config_tool_entry_open;
      bi->bi_tool_entry_close = config_tool_entry_close;
      bi->bi_tool_entry_first = config_tool_entry_first;
      bi->bi_tool_entry_next = config_tool_entry_next;
      bi->bi_tool_entry_get = config_tool_entry_get;
      bi->bi_tool_entry_put = config_tool_entry_put;

      ca.argv = argv;
      argv[ 0 ] = "slapd";
      ca.argv = argv;
      ca.argc = 3;
      ca.fname = argv[0];

      argv[3] = NULL;
      for (i=0; OidMacros[i].name; i++ ) {
            argv[1] = OidMacros[i].name;
            argv[2] = OidMacros[i].oid;
            parse_oidm( &ca, 0, NULL );
      }

      bi->bi_cf_ocs = cf_ocs;

      i = config_register_schema( ct, cf_ocs );
      if ( i ) return i;

      /* setup olcRootPW to be base64-encoded when written in LDIF form;
       * basically, we don't care if it fails */
      i = slap_str2ad( "olcRootPW", &ad, &text );
      if ( i ) {
            Debug( LDAP_DEBUG_ANY, "config_back_initialize: "
                  "warning, unable to get \"olcRootPW\" "
                  "attribute description: %d: %s\n",
                  i, text, 0 );
      } else {
            (void)ldif_must_b64_encode_register( ad->ad_cname.bv_val,
                  ad->ad_type->sat_oid );
      }

      /* set up the notable AttributeDescriptions */
      i = 0;
      for (;ct->name;ct++) {
            if (strcmp(ct->name, ads[i].name)) continue;
            *ads[i].desc = ct->ad;
            i++;
            if (!ads[i].name) break;
      }

      return 0;
}


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