]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-monitor/init.c
honor disclose
[openldap] / servers / slapd / back-monitor / init.c
index dc542090e066ed7e16e767c92cd6d9c77ffc60d7..8747e2a8912bcbc2a36b1e308f76fb4a1afcbb72 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2001-2004 The OpenLDAP Foundation.
+ * Copyright 2001-2005 The OpenLDAP Foundation.
  * Portions Copyright 2001-2003 Pierangelo Masarati.
  * All rights reserved.
  *
 
 /*
  * used by many functions to add description to entries
+ *
+ * WARNING: be_monitor may change as new databases are added,
+ * so it should not be used outside monitor_back_db_init()
+ * until monitor_back_db_open is called.
  */
 BackendDB *be_monitor = NULL;
 
-static struct monitorsubsys    **monitor_subsys = NULL;
+static struct monitor_subsys_t **monitor_subsys = NULL;
 static int                     monitor_subsys_opened = 0;
 
 /*
@@ -48,7 +52,7 @@ static int                    monitor_subsys_opened = 0;
  * before the database is opened (e.g. by other backends
  * or by overlays or modules).
  */
-static struct monitorsubsys known_monitor_subsys[] = {
+static struct monitor_subsys_t known_monitor_subsys[] = {
        { 
                SLAPD_MONITOR_BACKEND_NAME, 
                BER_BVNULL, BER_BVNULL, BER_BVNULL,
@@ -156,24 +160,8 @@ static struct monitorsubsys known_monitor_subsys[] = {
                }, { NULL }
 };
 
-#if SLAPD_MONITOR == SLAPD_MOD_DYNAMIC
-
 int
-init_module( int argc, char *argv[] )
-{
-       BackendInfo bi;
-
-       memset( &bi, '\0', sizeof(bi) );
-       bi.bi_type = "monitor";
-       bi.bi_init = monitor_back_initialize;
-       backend_add( &bi );
-       return 0;
-}
-
-#endif /* SLAPD_MONITOR */
-
-int
-monitor_back_register_subsys( monitorsubsys *ms )
+monitor_back_register_subsys( monitor_subsys_t *ms )
 {
        int     i = 0;
 
@@ -183,7 +171,7 @@ monitor_back_register_subsys( monitorsubsys *ms )
        }
 
        monitor_subsys = ch_realloc( monitor_subsys,
-                       ( 2 + i ) * sizeof( monitorsubsys * ) );
+                       ( 2 + i ) * sizeof( monitor_subsys_t * ) );
 
        if ( monitor_subsys == NULL ) {
                return -1;
@@ -211,7 +199,430 @@ monitor_back_register_subsys( monitorsubsys *ms )
        return 0;
 }
 
-monitorsubsys *
+enum {
+       LIMBO_ENTRY,
+       LIMBO_ATTRS,
+       LIMBO_CB
+};
+
+typedef struct entry_limbo_t {
+       int                     el_type;
+       Entry                   *el_e;
+       Attribute               *el_a;
+       struct berval           el_ndn;
+       struct berval           el_base;
+       int                     el_scope;
+       struct berval           el_filter;
+       monitor_callback_t      *el_cb;
+       struct entry_limbo_t    *el_next;
+} entry_limbo_t;
+
+int
+monitor_back_register_entry(
+               Entry                   *e,
+               monitor_callback_t      *cb )
+{
+       monitor_info_t  *mi = ( monitor_info_t * )be_monitor->be_private;
+
+       assert( mi != NULL );
+       assert( e != NULL );
+       assert( e->e_private == NULL );
+       
+       if ( monitor_subsys_opened ) {
+               Entry           *e_parent = NULL,
+                               *e_new = NULL,
+                               **ep = NULL;
+               struct berval   pdn = BER_BVNULL;
+               monitor_entry_t *mp = NULL,
+                               *mp_parent = NULL;
+               int             rc = 0;
+
+               if ( monitor_cache_get( mi, &e->e_nname, &e_parent ) == 0 ) {
+                       /* entry exists */
+                       Debug( LDAP_DEBUG_ANY,
+                               "monitor_back_register_entry(\"%s\"): "
+                               "entry exists\n",
+                               e->e_name.bv_val, 0, 0 );
+                       monitor_cache_release( mi, e_parent );
+                       return -1;
+               }
+
+               dnParent( &e->e_nname, &pdn );
+               if ( monitor_cache_get( mi, &pdn, &e_parent ) != 0 ) {
+                       /* parent does not exist */
+                       Debug( LDAP_DEBUG_ANY,
+                               "monitor_back_register_entry(\"%s\"): "
+                               "parent \"%s\" not found\n",
+                               e->e_name.bv_val, pdn.bv_val, 0 );
+                       return -1;
+               }
+
+               assert( e_parent->e_private != NULL );
+               mp_parent = ( monitor_entry_t * )e_parent->e_private;
+
+               if ( mp_parent->mp_flags & MONITOR_F_VOLATILE ) {
+                       /* entry is volatile; cannot append children */
+                       Debug( LDAP_DEBUG_ANY,
+                               "monitor_back_register_entry(\"%s\"): "
+                               "parent \"%s\" is volatile\n",
+                               e->e_name.bv_val, e_parent->e_name.bv_val, 0 );
+                       rc = -1;
+                       goto done;
+               }
+
+               mp = monitor_entrypriv_create();
+               if ( mp == NULL ) {
+                       Debug( LDAP_DEBUG_ANY,
+                               "monitor_back_register_entry(\"%s\"): "
+                               "monitor_entrypriv_create() failed\n",
+                               e->e_name.bv_val, 0, 0 );
+                       rc = -1;
+                       goto done;
+               }
+
+               e_new = entry_dup( e );
+               if ( e == NULL ) {
+                       Debug( LDAP_DEBUG_ANY,
+                               "monitor_back_register_entry(\"%s\"): "
+                               "entry_dup() failed\n",
+                               e->e_name.bv_val, 0, 0 );
+                       rc = -1;
+                       goto done;
+               }
+               
+               e_new->e_private = ( void * )mp;
+               mp->mp_info = mp_parent->mp_info;
+               mp->mp_flags = mp_parent->mp_flags | MONITOR_F_SUB;
+
+               ep = &mp_parent->mp_children;
+               for ( ; *ep; ) {
+                       mp_parent = ( monitor_entry_t * )(*ep)->e_private;
+                       ep = &mp_parent->mp_next;
+               }
+               *ep = e_new;
+
+               if ( monitor_cache_add( mi, e_new ) ) {
+                       Debug( LDAP_DEBUG_ANY,
+                               "monitor_back_register_entry(\"%s\"): "
+                               "unable to add entry\n",
+                               e->e_name.bv_val, 0, 0 );
+                       rc = -1;
+                       goto done;
+               }
+
+done:;
+               if ( rc ) {
+                       if ( mp ) {
+                               ch_free( mp );
+                       }
+                       if ( e_new ) {
+                               e_new->e_private = NULL;
+                               entry_free( e_new );
+                       }
+               }
+
+               if ( e_parent ) {
+                       monitor_cache_release( mi, e_parent );
+               }
+
+       } else {
+               entry_limbo_t   *elp, el = { 0 };
+
+               el.el_type = LIMBO_ENTRY;
+
+               el.el_e = entry_dup( e );
+               if ( el.el_e == NULL ) {
+                       Debug( LDAP_DEBUG_ANY,
+                               "monitor_back_register_entry(\"%s\"): "
+                               "entry_dup() failed\n",
+                               e->e_name.bv_val, 0, 0 );
+                       return -1;
+               }
+               
+               el.el_cb = cb;
+
+               elp = (entry_limbo_t *)ch_malloc( sizeof( entry_limbo_t ) );
+               if ( elp ) {
+                       el.el_e->e_private = NULL;
+                       entry_free( el.el_e );
+                       return -1;
+               }
+
+               el.el_next = (entry_limbo_t *)mi->mi_entry_limbo;
+               *elp = el;
+               mi->mi_entry_limbo = (void *)elp;
+       }
+
+       return 0;
+}
+
+static int
+monitor_filter2ndn_cb( Operation *op, SlapReply *rs )
+{
+       if ( rs->sr_type == REP_SEARCH ) {
+               struct berval   *ndn = op->o_callback->sc_private;
+               
+               ber_dupbv( ndn, &rs->sr_entry->e_nname );
+       }
+
+       return 0;
+}
+
+int
+monitor_filter2ndn( struct berval *base, int scope, struct berval *filter,
+               struct berval *ndn )
+{
+       Connection      conn = { 0 };
+       char opbuf[OPERATION_BUFFER_SIZE];
+       Operation       *op;
+       SlapReply       rs = { 0 };
+       slap_callback   cb = { NULL, monitor_filter2ndn_cb, NULL, NULL };
+       AttributeName   anlist[ 2 ];
+       int             rc;
+
+       BER_BVZERO( ndn );
+
+       if ( be_monitor == NULL ) {
+               return -1;
+       }
+
+       op = (Operation *)opbuf;
+       connection_fake_init( &conn, op, &conn );
+
+       op->o_tag = LDAP_REQ_SEARCH;
+
+       /* use global malloc for now */
+       op->o_tmpmemctx = NULL;
+       op->o_tmpmfuncs = &ch_mfuncs;
+
+       op->o_bd = be_monitor;
+       if ( base == NULL || BER_BVISNULL( base ) ) {
+               ber_dupbv_x( &op->o_req_dn, &op->o_bd->be_suffix[ 0 ],
+                               op->o_tmpmemctx );
+               ber_dupbv_x( &op->o_req_ndn, &op->o_bd->be_nsuffix[ 0 ],
+                               op->o_tmpmemctx );
+
+       } else {
+               if ( dnPrettyNormal( NULL, base, &op->o_req_dn, &op->o_req_ndn,
+                                       op->o_tmpmemctx ) ) {
+                       /* error */
+               }
+       }
+
+       op->o_callback = &cb;
+       cb.sc_private = (void *)ndn;
+
+       op->ors_scope = scope;
+       ber_dupbv_x( &op->ors_filterstr, filter, op->o_tmpmemctx );
+       op->ors_filter = str2filter_x( op, filter->bv_val );
+       op->ors_attrs = anlist;
+       BER_BVSTR( &anlist[ 0 ].an_name, LDAP_NO_ATTRS );
+       BER_BVZERO( &anlist[ 1 ].an_name );
+       op->ors_attrsonly = 0;
+       op->ors_tlimit = SLAP_NO_LIMIT;
+       op->ors_slimit = 1;
+       op->ors_limit = NULL;
+       op->ors_deref = LDAP_DEREF_NEVER;
+
+       op->o_nocaching = 1;
+       op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
+
+       rc = op->o_bd->be_search( op, &rs );
+
+       filter_free_x( op, op->ors_filter );
+       op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
+       op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
+       op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
+
+       if ( rc != 0 ) {
+               return rc;
+       }
+
+       switch ( rs.sr_err ) {
+       case LDAP_SUCCESS:
+               if ( BER_BVISNULL( ndn ) ) {
+                       rc = -1;
+               }
+               break;
+                       
+       case LDAP_SIZELIMIT_EXCEEDED:
+       default:
+               if ( !BER_BVISNULL( ndn ) ) {
+                       ber_memfree( ndn->bv_val );
+                       BER_BVZERO( ndn );
+               }
+               rc = -1;
+               break;
+       }
+
+       return rc;
+}
+
+int
+monitor_back_register_entry_attrs(
+               struct berval           *ndn_in,
+               Attribute               *a,
+               monitor_callback_t      *cb,
+               struct berval           *base,
+               int                     scope,
+               struct berval           *filter )
+{
+       monitor_info_t  *mi = ( monitor_info_t * )be_monitor->be_private;
+       struct berval   ndn = BER_BVNULL;
+
+       assert( mi != NULL );
+
+       if ( ndn_in != NULL ) {
+               ndn = *ndn_in;
+       }
+
+       if ( a == NULL && cb == NULL ) {
+               /* nothing to do */
+               return -1;
+       }
+
+       if ( ( ndn_in == NULL || BER_BVISNULL( &ndn ) )
+                       && BER_BVISNULL( filter ) )
+       {
+               /* need a filter */
+               Debug( LDAP_DEBUG_ANY,
+                       "monitor_back_register_entry_*(\"\"): "
+                       "need a valid filter\n",
+                       0, 0, 0 );
+               return -1;
+       }
+
+       if ( monitor_subsys_opened ) {
+               Entry                   *e = NULL;
+               Attribute               **atp = NULL;
+               monitor_entry_t         *mp = NULL;
+               monitor_callback_t      **mcp = NULL;
+               int                     rc = 0;
+               int                     freeit = 0;
+
+               if ( BER_BVISNULL( &ndn ) ) {
+                       if ( monitor_filter2ndn( base, scope, filter, &ndn ) ) {
+                               /* entry does not exist */
+                               Debug( LDAP_DEBUG_ANY,
+                                       "monitor_back_register_entry_*(\"\"): "
+                                       "base=%s scope=%d filter=%s : "
+                                       "unable to find entry\n",
+                                       base->bv_val ? base->bv_val : "\"\"",
+                                       scope, filter->bv_val );
+                               return -1;
+                       }
+
+                       freeit = 1;
+               }
+
+               if ( monitor_cache_get( mi, &ndn, &e ) != 0 ) {
+                       /* entry does not exist */
+                       Debug( LDAP_DEBUG_ANY,
+                               "monitor_back_register_entry_*(\"%s\"): "
+                               "entry does not exist\n",
+                               ndn.bv_val, 0, 0 );
+                       rc = -1;
+                       goto done;
+               }
+
+               assert( e->e_private != NULL );
+               mp = ( monitor_entry_t * )e->e_private;
+
+               if ( mp->mp_flags & MONITOR_F_VOLATILE ) {
+                       /* entry is volatile; cannot append callback */
+                       Debug( LDAP_DEBUG_ANY,
+                               "monitor_back_register_entry_*(\"%s\"): "
+                               "entry is volatile\n",
+                               e->e_name.bv_val, 0, 0 );
+                       rc = -1;
+                       goto done;
+               }
+
+               if ( a ) {
+                       for ( atp = &e->e_attrs; *atp; atp = &(*atp)->a_next )
+                               /* just get to last */ ;
+
+                       *atp = attrs_dup( a );
+                       if ( *atp == NULL ) {
+                               Debug( LDAP_DEBUG_ANY,
+                                       "monitor_back_register_entry_*(\"%s\"): "
+                                       "attrs_dup() failed\n",
+                                       e->e_name.bv_val, 0, 0 );
+                               rc = -1;
+                               goto done;
+                       }
+               }
+
+               if ( cb ) {
+                       for ( mcp = &mp->mp_cb; *mcp; mcp = &(*mcp)->mc_next )
+                               /* go to tail */ ;
+               
+                       /* NOTE: we do not clear cb->mc_next, so this function
+                        * can be used to append a list of callbacks */
+                       (*mcp) = cb;
+               }
+
+done:;
+               if ( rc ) {
+                       if ( *atp ) {
+                               attrs_free( *atp );
+                               *atp = NULL;
+                       }
+               }
+
+               if ( freeit ) {
+                       ber_memfree( ndn.bv_val );
+               }
+
+               if ( e ) {
+                       monitor_cache_release( mi, e );
+               }
+
+       } else {
+               entry_limbo_t   *elp, el = { 0 };
+
+               el.el_type = LIMBO_ATTRS;
+               if ( !BER_BVISNULL( &ndn ) ) {
+                       ber_dupbv( &el.el_ndn, &ndn );
+               }
+               if ( !BER_BVISNULL( base ) ) {
+                       ber_dupbv( &el.el_base, base);
+               }
+               el.el_scope = scope;
+               if ( !BER_BVISNULL( filter ) ) {
+                       ber_dupbv( &el.el_filter, filter );
+               }
+
+               el.el_a = attrs_dup( a );
+               el.el_cb = cb;
+
+               elp = (entry_limbo_t *)ch_malloc( sizeof( entry_limbo_t ) );
+               if ( elp == NULL ) {
+                       attrs_free( a );
+                       return -1;
+               }
+
+               el.el_next = (entry_limbo_t *)mi->mi_entry_limbo;
+               *elp = el;
+               mi->mi_entry_limbo = (void *)elp;;
+       }
+
+       return 0;
+}
+
+int
+monitor_back_register_entry_callback(
+               struct berval           *ndn,
+               monitor_callback_t      *cb,
+               struct berval           *base,
+               int                     scope,
+               struct berval           *filter )
+{
+       return monitor_back_register_entry_attrs( ndn, NULL, cb,
+                       base, scope, filter );
+}
+
+monitor_subsys_t *
 monitor_back_get_subsys( const char *name )
 {
        if ( monitor_subsys != NULL ) {
@@ -227,7 +638,7 @@ monitor_back_get_subsys( const char *name )
        return NULL;
 }
 
-monitorsubsys *
+monitor_subsys_t *
 monitor_back_get_subsys_by_dn( struct berval *ndn, int sub )
 {
        if ( monitor_subsys != NULL ) {
@@ -257,10 +668,9 @@ monitor_back_initialize(
        BackendInfo     *bi
 )
 {
-       monitorsubsys   *ms;
-       static char     *controls[] = {
+       monitor_subsys_t        *ms;
+       static char             *controls[] = {
                LDAP_CONTROL_MANAGEDSAIT,
-               LDAP_CONTROL_VALUESRETURNFILTER,
                NULL
        };
 
@@ -326,11 +736,11 @@ monitor_back_db_init(
        BackendDB       *be
 )
 {
-       struct monitorinfo      *mi;
-       int                     i, rc;
-       struct berval           dn, ndn;
-       struct berval           bv;
-       const char              *text;
+       monitor_info_t  *mi;
+       int             i, rc;
+       struct berval   dn, ndn;
+       struct berval   bv;
+       const char      *text;
 
        struct m_s {
                char    *name;
@@ -358,42 +768,42 @@ monitor_back_db_init(
                                "$ managedInfo "
                                "$ monitorOverlay "
                        ") )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
-                       offsetof(struct monitorinfo, mi_oc_monitor) },
+                       offsetof(monitor_info_t, mi_oc_monitor) },
                { "monitorServer", "( 1.3.6.1.4.1.4203.666.3.7 "
                        "NAME 'monitorServer' "
                        "DESC 'Server monitoring root entry' "
                        "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
-                       offsetof(struct monitorinfo, mi_oc_monitorServer) },
+                       offsetof(monitor_info_t, mi_oc_monitorServer) },
                { "monitorContainer", "( 1.3.6.1.4.1.4203.666.3.8 "
                        "NAME 'monitorContainer' "
                        "DESC 'monitor container class' "
                        "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
-                       offsetof(struct monitorinfo, mi_oc_monitorContainer) },
+                       offsetof(monitor_info_t, mi_oc_monitorContainer) },
                { "monitorCounterObject", "( 1.3.6.1.4.1.4203.666.3.9 "
                        "NAME 'monitorCounterObject' "
                        "DESC 'monitor counter class' "
                        "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
-                       offsetof(struct monitorinfo, mi_oc_monitorCounterObject) },
+                       offsetof(monitor_info_t, mi_oc_monitorCounterObject) },
                { "monitorOperation", "( 1.3.6.1.4.1.4203.666.3.10 "
                        "NAME 'monitorOperation' "
                        "DESC 'monitor operation class' "
                        "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
-                       offsetof(struct monitorinfo, mi_oc_monitorOperation) },
+                       offsetof(monitor_info_t, mi_oc_monitorOperation) },
                { "monitorConnection", "( 1.3.6.1.4.1.4203.666.3.11 "
                        "NAME 'monitorConnection' "
                        "DESC 'monitor connection class' "
                        "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
-                       offsetof(struct monitorinfo, mi_oc_monitorConnection) },
+                       offsetof(monitor_info_t, mi_oc_monitorConnection) },
                { "managedObject", "( 1.3.6.1.4.1.4203.666.3.12 "
                        "NAME 'managedObject' "
                        "DESC 'monitor managed entity class' "
                        "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
-                       offsetof(struct monitorinfo, mi_oc_managedObject) },
-               { "monitoredObject", "( 1.3.6.1.4.1.4203.666.3.13 "
+                       offsetof(monitor_info_t, mi_oc_managedObject) },
+               { "monitoredObject", "( 1.3.6.1.4.1.4203.666.3.14 "
                        "NAME 'monitoredObject' "
                        "DESC 'monitor monitored entity class' "
                        "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
-                       offsetof(struct monitorinfo, mi_oc_monitoredObject) },
+                       offsetof(monitor_info_t, mi_oc_monitoredObject) },
                { NULL, NULL, 0, -1 }
        }, mat[] = {
                { "monitoredInfo", "( 1.3.6.1.4.1.4203.666.1.14 "
@@ -405,12 +815,12 @@ monitor_back_db_init(
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{32768} "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitoredInfo) },
+                       offsetof(monitor_info_t, mi_ad_monitoredInfo) },
                { "managedInfo", "( 1.3.6.1.4.1.4203.666.1.15 "
                        "NAME 'managedInfo' "
                        "DESC 'monitor managed info' "
                        "SUP name )", SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_managedInfo) },
+                       offsetof(monitor_info_t, mi_ad_managedInfo) },
                { "monitorCounter", "( 1.3.6.1.4.1.4203.666.1.16 "
                        "NAME 'monitorCounter' "
                        "DESC 'monitor counter' "
@@ -419,28 +829,28 @@ monitor_back_db_init(
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitorCounter) },
+                       offsetof(monitor_info_t, mi_ad_monitorCounter) },
                { "monitorOpCompleted", "( 1.3.6.1.4.1.4203.666.1.17 "
                        "NAME 'monitorOpCompleted' "
                        "DESC 'monitor completed operations' "
                        "SUP monitorCounter "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitorOpCompleted) },
+                       offsetof(monitor_info_t, mi_ad_monitorOpCompleted) },
                { "monitorOpInitiated", "( 1.3.6.1.4.1.4203.666.1.18 "
                        "NAME 'monitorOpInitiated' "
                        "DESC 'monitor initiated operations' "
                        "SUP monitorCounter "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitorOpInitiated) },
+                       offsetof(monitor_info_t, mi_ad_monitorOpInitiated) },
                { "monitorConnectionNumber", "( 1.3.6.1.4.1.4203.666.1.19 "
                        "NAME 'monitorConnectionNumber' "
                        "DESC 'monitor connection number' "
                        "SUP monitorCounter "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitorConnectionNumber) },
+                       offsetof(monitor_info_t, mi_ad_monitorConnectionNumber) },
                { "monitorConnectionAuthzDN", "( 1.3.6.1.4.1.4203.666.1.20 "
                        "NAME 'monitorConnectionAuthzDN' "
                        "DESC 'monitor connection authorization DN' "
@@ -449,21 +859,21 @@ monitor_back_db_init(
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitorConnectionAuthzDN) },
+                       offsetof(monitor_info_t, mi_ad_monitorConnectionAuthzDN) },
                { "monitorConnectionLocalAddress", "( 1.3.6.1.4.1.4203.666.1.21 "
                        "NAME 'monitorConnectionLocalAddress' "
                        "DESC 'monitor connection local address' "
                        "SUP monitoredInfo "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitorConnectionLocalAddress) },
+                       offsetof(monitor_info_t, mi_ad_monitorConnectionLocalAddress) },
                { "monitorConnectionPeerAddress", "( 1.3.6.1.4.1.4203.666.1.22 "
                        "NAME 'monitorConnectionPeerAddress' "
                        "DESC 'monitor connection peer address' "
                        "SUP monitoredInfo "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitorConnectionPeerAddress) },
+                       offsetof(monitor_info_t, mi_ad_monitorConnectionPeerAddress) },
                { "monitorTimestamp", "( 1.3.6.1.4.1.4203.666.1.24 "
                        "NAME 'monitorTimestamp' "
                        "DESC 'monitor timestamp' "
@@ -473,14 +883,14 @@ monitor_back_db_init(
                        "SINGLE-VALUE "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitorTimestamp) },
+                       offsetof(monitor_info_t, mi_ad_monitorTimestamp) },
                { "monitorOverlay", "( 1.3.6.1.4.1.4203.666.1.27 "
                        "NAME 'monitorOverlay' "
                        "DESC 'name of overlays defined for a give database' "
                        "SUP monitoredInfo "
                        "NO-USER-MODIFICATION "
                        "USAGE directoryOperation )", SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_monitorOverlay) },
+                       offsetof(monitor_info_t, mi_ad_monitorOverlay) },
                { "readOnly", "( 1.3.6.1.4.1.4203.666.1.31 "
                        "NAME 'readOnly' "
                        "DESC 'read/write status of a given database' "
@@ -488,12 +898,12 @@ monitor_back_db_init(
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 "
                        "SINGLE-VALUE "
                        "USAGE directoryOperation )", SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_readOnly) },
+                       offsetof(monitor_info_t, mi_ad_readOnly) },
                { "restrictedOperation", "( 1.3.6.1.4.1.4203.666.1.32 "
                        "NAME 'restrictedOperation' "
                        "DESC 'name of restricted operation for a given database' "
                        "SUP managedInfo )", SLAP_AT_HIDE,
-                       offsetof(struct monitorinfo, mi_ad_restrictedOperation ) },
+                       offsetof(monitor_info_t, mi_ad_restrictedOperation ) },
 #ifdef INTEGRATE_CORE_SCHEMA
                { NULL, NULL, 0, -1 },  /* description */
                { NULL, NULL, 0, -1 },  /* seeAlso */
@@ -508,23 +918,25 @@ monitor_back_db_init(
                        "EQUALITY caseIgnoreMatch "
                        "SUBSTR caseIgnoreSubstringsMatch "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{1024} )", 0,
-                       offsetof(struct monitorinfo, mi_ad_description) },
+                       offsetof(monitor_info_t, mi_ad_description) },
                { "seeAlso", "( 2.5.4.34 "
                        "NAME 'seeAlso' "
                        "DESC 'RFC2256: DN of related object' "
                        "SUP distinguishedName )", 0,
-                       offsetof(struct monitorinfo, mi_ad_seeAlso) },
+                       offsetof(monitor_info_t, mi_ad_seeAlso) },
                { "l", "( 2.5.4.7 "
                        "NAME ( 'l' 'localityName' ) "
                        "DESC 'RFC2256: locality which this object resides in' "
                        "SUP name )", 0,
-                       offsetof(struct monitorinfo, mi_ad_l) },
+                       offsetof(monitor_info_t, mi_ad_l) },
+#ifdef MONITOR_DEFINE_LABELEDURI
                { "labeledURI", "( 1.3.6.1.4.1.250.1.57 "
                        "NAME 'labeledURI' "
                        "DESC 'RFC2079: Uniform Resource Identifier with optional label' "
                        "EQUALITY caseExactMatch "
                        "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )", 0,
-                       offsetof(struct monitorinfo, mi_ad_labeledURI) },
+                       offsetof(monitor_info_t, mi_ad_labeledURI) },
+#endif /* MONITOR_DEFINE_LABELEDURI */
                { NULL, NULL, 0, -1 }
        };
        
@@ -556,14 +968,14 @@ monitor_back_db_init(
        ber_bvarray_add( &be->be_suffix, &bv );
        ber_bvarray_add( &be->be_nsuffix, &ndn );
 
-       mi = ( struct monitorinfo * )ch_calloc( sizeof( struct monitorinfo ), 1 );
+       mi = ( monitor_info_t * )ch_calloc( sizeof( monitor_info_t ), 1 );
        if ( mi == NULL ) {
                Debug( LDAP_DEBUG_ANY,
                        "unable to initialize monitor backend\n", 0, 0, 0 );
                return -1;
        }
 
-       memset( mi, 0, sizeof( struct monitorinfo ) );
+       memset( mi, 0, sizeof( monitor_info_t ) );
 
        ldap_pvt_thread_mutex_init( &mi->mi_cache_mutex );
 
@@ -623,7 +1035,7 @@ monitor_back_db_init(
                        return -1;
                }
 
-               code = at_add(at, &err);
+               code = at_add(at, 0, NULL, &err);
                if ( code ) {
                        Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
                                "%s in attributeType \"%s\"\n",
@@ -666,7 +1078,7 @@ monitor_back_db_init(
                        return -1;
                }
 
-               code = oc_add(oc, 0, &err);
+               code = oc_add(oc, 0, NULL, &err);
                if ( code ) {
                        Debug( LDAP_DEBUG_ANY,
                                "objectclass \"%s\": %s \"%s\"\n" ,
@@ -697,10 +1109,10 @@ monitor_back_db_open(
        BackendDB       *be
 )
 {
-       struct monitorinfo      *mi = (struct monitorinfo *)be->be_private;
-       struct monitorsubsys    **ms;
+       monitor_info_t          *mi = (monitor_info_t *)be->be_private;
+       struct monitor_subsys_t **ms;
        Entry                   *e, **ep;
-       struct monitorentrypriv *mp;
+       monitor_entry_t         *mp;
        int                     i;
        char                    buf[ BACKMONITOR_BUFSIZE ],
                                *end_of_line;
@@ -711,6 +1123,11 @@ monitor_back_db_open(
 #endif
        static char             tmbuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 
+       assert( be_monitor );
+       if ( be != be_monitor ) {
+               be_monitor = be;
+       }
+
        /*
         * Start
         */
@@ -922,6 +1339,66 @@ monitor_back_db_open(
 
        monitor_subsys_opened = 1;
 
+       if ( mi->mi_entry_limbo ) {
+               entry_limbo_t   *el = (entry_limbo_t *)mi->mi_entry_limbo;
+
+               for ( ; el; ) {
+                       entry_limbo_t   *tmp;
+
+                       switch ( el->el_type ) {
+                       case LIMBO_ENTRY:
+                               monitor_back_register_entry(
+                                               el->el_e,
+                                               el->el_cb );
+                               break;
+
+                       case LIMBO_ATTRS:
+                               monitor_back_register_entry_attrs(
+                                               &el->el_ndn,
+                                               el->el_a,
+                                               el->el_cb,
+                                               &el->el_base,
+                                               el->el_scope,
+                                               &el->el_filter );
+                               break;
+
+                       case LIMBO_CB:
+                               monitor_back_register_entry_callback(
+                                               &el->el_ndn,
+                                               el->el_cb,
+                                               &el->el_base,
+                                               el->el_scope,
+                                               &el->el_filter );
+                               break;
+
+                       default:
+                               assert( 0 );
+                       }
+
+                       if ( el->el_e ) {
+                               entry_free( el->el_e );
+                       }
+                       if ( el->el_a ) {
+                               attrs_free( el->el_a );
+                       }
+                       if ( !BER_BVISNULL( &el->el_ndn ) ) {
+                               ber_memfree( el->el_ndn.bv_val );
+                       }
+                       if ( !BER_BVISNULL( &el->el_base ) ) {
+                               ber_memfree( el->el_base.bv_val );
+                       }
+                       if ( !BER_BVISNULL( &el->el_filter ) ) {
+                               ber_memfree( el->el_filter.bv_val );
+                       }
+
+                       tmp = el;
+                       el = el->el_next;
+                       ch_free( tmp );
+               }
+
+               mi->mi_entry_limbo = NULL;
+       }
+
        return( 0 );
 }
 
@@ -949,7 +1426,7 @@ monitor_back_db_config(
        char        **argv
 )
 {
-       struct monitorinfo *mi = (struct monitorinfo *)be->be_private;
+       monitor_info_t  *mi = ( monitor_info_t * )be->be_private;
 
        /*
         * eventually, will hold database specific configuration parameters
@@ -979,3 +1456,10 @@ monitor_back_db_destroy(
        return 0;
 }
 
+#if SLAPD_MONITOR == SLAPD_MOD_DYNAMIC
+
+/* conditionally define the init_module() function */
+SLAP_BACKEND_INIT_MODULE( monitor )
+
+#endif /* SLAPD_MONITOR == SLAPD_MOD_DYNAMIC */
+