git.sur5r.net Git - openldap/blob - servers/slapd/back-monitor/init.c

   1 /* init.c - initialize monitor backend */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2001-2005 The OpenLDAP Foundation.
   6  * Portions Copyright 2001-2003 Pierangelo Masarati.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by Pierangelo Masarati for inclusion
  19  * in OpenLDAP Software.
  20  */
  21
  22 #include "portable.h"
  23
  24 #include <stdio.h>
  25 #include <ac/string.h>
  26
  27 #include <lutil.h>
  28 #include "slap.h"
  29 #include "lber_pvt.h"
  30 #include "back-monitor.h"
  31
  32 #undef INTEGRATE_CORE_SCHEMA
  33
  34 /*
  35  * used by many functions to add description to entries
  36  *
  37  * WARNING: be_monitor may change as new databases are added,
  38  * so it should not be used outside monitor_back_db_init()
  39  * until monitor_back_db_open is called.
  40  */
  41 BackendDB *be_monitor = NULL;
  42
  43 static struct monitor_subsys_t  **monitor_subsys = NULL;
  44 static int                      monitor_subsys_opened = 0;
  45
  46 /*
  47  * subsystem data
  48  *
  49  * the known subsystems are added to the subsystems
  50  * array at backend initialization; other subsystems
  51  * may be added by calling monitor_back_register_subsys()
  52  * before the database is opened (e.g. by other backends
  53  * or by overlays or modules).
  54  */
  55 static struct monitor_subsys_t known_monitor_subsys[] = {
  56         {
  57                 SLAPD_MONITOR_BACKEND_NAME,
  58                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  59                 MONITOR_F_PERSISTENT_CH,
  60                 monitor_subsys_backend_init,
  61                 NULL,   /* update */
  62                 NULL,   /* create */
  63                 NULL    /* modify */
  64         }, {
  65                 SLAPD_MONITOR_CONN_NAME,
  66                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  67                 MONITOR_F_VOLATILE_CH,
  68                 monitor_subsys_conn_init,
  69                 monitor_subsys_conn_update,
  70                 monitor_subsys_conn_create,
  71                 NULL    /* modify */
  72         }, {
  73                 SLAPD_MONITOR_DATABASE_NAME,
  74                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  75                 MONITOR_F_PERSISTENT_CH,
  76                 monitor_subsys_database_init,
  77                 NULL,   /* update */
  78                 NULL,   /* create */
  79                 monitor_subsys_database_modify
  80         }, {
  81                 SLAPD_MONITOR_LISTENER_NAME,
  82                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  83                 MONITOR_F_PERSISTENT_CH,
  84                 monitor_subsys_listener_init,
  85                 NULL,   /* update */
  86                 NULL,   /* create */
  87                 NULL    /* modify */
  88         }, {
  89                 SLAPD_MONITOR_LOG_NAME,
  90                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  91                 MONITOR_F_NONE,
  92                 monitor_subsys_log_init,
  93                 NULL,   /* update */
  94                 NULL,   /* create */
  95                 monitor_subsys_log_modify
  96         }, {
  97                 SLAPD_MONITOR_OPS_NAME,
  98                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  99                 MONITOR_F_PERSISTENT_CH,
 100                 monitor_subsys_ops_init,
 101                 monitor_subsys_ops_update,
 102                 NULL,   /* create */
 103                 NULL,   /* modify */
 104         }, {
 105                 SLAPD_MONITOR_OVERLAY_NAME,
 106                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 107                 MONITOR_F_PERSISTENT_CH,
 108                 monitor_subsys_overlay_init,
 109                 NULL,   /* update */
 110                 NULL,   /* create */
 111                 NULL,   /* modify */
 112         }, {
 113                 SLAPD_MONITOR_SASL_NAME,
 114                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 115                 MONITOR_F_NONE,
 116                 NULL,   /* init */
 117                 NULL,   /* update */
 118                 NULL,   /* create */
 119                 NULL    /* modify */
 120         }, {
 121                 SLAPD_MONITOR_SENT_NAME,
 122                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 123                 MONITOR_F_PERSISTENT_CH,
 124                 monitor_subsys_sent_init,
 125                 monitor_subsys_sent_update,
 126                 NULL,   /* create */
 127                 NULL,   /* modify */
 128         }, {
 129                 SLAPD_MONITOR_THREAD_NAME,
 130                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 131                 MONITOR_F_PERSISTENT_CH,
 132                 monitor_subsys_thread_init,
 133                 monitor_subsys_thread_update,
 134                 NULL,   /* create */
 135                 NULL    /* modify */
 136         }, {
 137                 SLAPD_MONITOR_TIME_NAME,
 138                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 139                 MONITOR_F_PERSISTENT_CH,
 140                 monitor_subsys_time_init,
 141                 monitor_subsys_time_update,
 142                 NULL,   /* create */
 143                 NULL,   /* modify */
 144         }, {
 145                 SLAPD_MONITOR_TLS_NAME,
 146                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 147                 MONITOR_F_NONE,
 148                 NULL,   /* init */
 149                 NULL,   /* update */
 150                 NULL,   /* create */
 151                 NULL    /* modify */
 152         }, {
 153                 SLAPD_MONITOR_RWW_NAME,
 154                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 155                 MONITOR_F_PERSISTENT_CH,
 156                 monitor_subsys_rww_init,
 157                 monitor_subsys_rww_update,
 158                 NULL,   /* create */
 159                 NULL    /* modify */
 160         }, { NULL }
 161 };
 162
 163 int
 164 monitor_back_register_subsys( monitor_subsys_t *ms )
 165 {
 166         int     i = 0;
 167
 168         if ( monitor_subsys ) {
 169                 for ( ; monitor_subsys[ i ] != NULL; i++ )
 170                         /* just count'em */ ;
 171         }
 172
 173         monitor_subsys = ch_realloc( monitor_subsys,
 174                         ( 2 + i ) * sizeof( monitor_subsys_t * ) );
 175
 176         if ( monitor_subsys == NULL ) {
 177                 return -1;
 178         }
 179
 180         monitor_subsys[ i ] = ms;
 181         monitor_subsys[ i + 1 ] = NULL;
 182
 183         /* if a subsystem is registered __AFTER__ subsystem
 184          * initialization (depending on the sequence the databases
 185          * are listed in slapd.conf), init it */
 186         if ( monitor_subsys_opened ) {
 187
 188                 /* FIXME: this should only be possible
 189                  * if be_monitor is already initialized */
 190                 assert( be_monitor );
 191
 192                 if ( ms->mss_open && ( *ms->mss_open )( be_monitor, ms ) ) {
 193                         return -1;
 194                 }
 195
 196                 ms->mss_flags |= MONITOR_F_OPENED;
 197         }
 198
 199         return 0;
 200 }
 201
 202 enum {
 203         LIMBO_ENTRY,
 204         LIMBO_ATTRS,
 205         LIMBO_CB
 206 };
 207
 208 typedef struct entry_limbo_t {
 209         int                     el_type;
 210         Entry                   *el_e;
 211         Attribute               *el_a;
 212         struct berval           el_ndn;
 213         struct berval           el_base;
 214         int                     el_scope;
 215         struct berval           el_filter;
 216         monitor_callback_t      *el_cb;
 217         struct entry_limbo_t    *el_next;
 218 } entry_limbo_t;
 219
 220 int
 221 monitor_back_register_entry(
 222                 Entry                   *e,
 223                 monitor_callback_t      *cb )
 224 {
 225         monitor_info_t  *mi = ( monitor_info_t * )be_monitor->be_private;
 226
 227         assert( mi != NULL );
 228         assert( e != NULL );
 229         assert( e->e_private == NULL );
 230
 231         if ( monitor_subsys_opened ) {
 232                 Entry           *e_parent = NULL,
 233                                 *e_new = NULL,
 234                                 **ep = NULL;
 235                 struct berval   pdn = BER_BVNULL;
 236                 monitor_entry_t *mp = NULL,
 237                                 *mp_parent = NULL;
 238                 int             rc = 0;
 239
 240                 if ( monitor_cache_get( mi, &e->e_nname, &e_parent ) == 0 ) {
 241                         /* entry exists */
 242                         Debug( LDAP_DEBUG_ANY,
 243                                 "monitor_back_register_entry(\"%s\"): "
 244                                 "entry exists\n",
 245                                 e->e_name.bv_val, 0, 0 );
 246                         monitor_cache_release( mi, e_parent );
 247                         return -1;
 248                 }
 249
 250                 dnParent( &e->e_nname, &pdn );
 251                 if ( monitor_cache_get( mi, &pdn, &e_parent ) != 0 ) {
 252                         /* parent does not exist */
 253                         Debug( LDAP_DEBUG_ANY,
 254                                 "monitor_back_register_entry(\"%s\"): "
 255                                 "parent \"%s\" not found\n",
 256                                 e->e_name.bv_val, pdn.bv_val, 0 );
 257                         return -1;
 258                 }
 259
 260                 assert( e_parent->e_private != NULL );
 261                 mp_parent = ( monitor_entry_t * )e_parent->e_private;
 262
 263                 if ( mp_parent->mp_flags & MONITOR_F_VOLATILE ) {
 264                         /* entry is volatile; cannot append children */
 265                         Debug( LDAP_DEBUG_ANY,
 266                                 "monitor_back_register_entry(\"%s\"): "
 267                                 "parent \"%s\" is volatile\n",
 268                                 e->e_name.bv_val, e_parent->e_name.bv_val, 0 );
 269                         rc = -1;
 270                         goto done;
 271                 }
 272
 273                 mp = monitor_entrypriv_create();
 274                 if ( mp == NULL ) {
 275                         Debug( LDAP_DEBUG_ANY,
 276                                 "monitor_back_register_entry(\"%s\"): "
 277                                 "monitor_entrypriv_create() failed\n",
 278                                 e->e_name.bv_val, 0, 0 );
 279                         rc = -1;
 280                         goto done;
 281                 }
 282
 283                 e_new = entry_dup( e );
 284                 if ( e == NULL ) {
 285                         Debug( LDAP_DEBUG_ANY,
 286                                 "monitor_back_register_entry(\"%s\"): "
 287                                 "entry_dup() failed\n",
 288                                 e->e_name.bv_val, 0, 0 );
 289                         rc = -1;
 290                         goto done;
 291                 }
 292
 293                 e_new->e_private = ( void * )mp;
 294                 mp->mp_info = mp_parent->mp_info;
 295                 mp->mp_flags = mp_parent->mp_flags | MONITOR_F_SUB;
 296
 297                 ep = &mp_parent->mp_children;
 298                 for ( ; *ep; ) {
 299                         mp_parent = ( monitor_entry_t * )(*ep)->e_private;
 300                         ep = &mp_parent->mp_next;
 301                 }
 302                 *ep = e_new;
 303
 304                 if ( monitor_cache_add( mi, e_new ) ) {
 305                         Debug( LDAP_DEBUG_ANY,
 306                                 "monitor_back_register_entry(\"%s\"): "
 307                                 "unable to add entry\n",
 308                                 e->e_name.bv_val, 0, 0 );
 309                         rc = -1;
 310                         goto done;
 311                 }
 312
 313 done:;
 314                 if ( rc ) {
 315                         if ( mp ) {
 316                                 ch_free( mp );
 317                         }
 318                         if ( e_new ) {
 319                                 e_new->e_private = NULL;
 320                                 entry_free( e_new );
 321                         }
 322                 }
 323
 324                 if ( e_parent ) {
 325                         monitor_cache_release( mi, e_parent );
 326                 }
 327
 328         } else {
 329                 entry_limbo_t   *elp, el = { 0 };
 330
 331                 el.el_type = LIMBO_ENTRY;
 332
 333                 el.el_e = entry_dup( e );
 334                 if ( el.el_e == NULL ) {
 335                         Debug( LDAP_DEBUG_ANY,
 336                                 "monitor_back_register_entry(\"%s\"): "
 337                                 "entry_dup() failed\n",
 338                                 e->e_name.bv_val, 0, 0 );
 339                         return -1;
 340                 }
 341
 342                 el.el_cb = cb;
 343
 344                 elp = (entry_limbo_t *)ch_malloc( sizeof( entry_limbo_t ) );
 345                 if ( elp ) {
 346                         el.el_e->e_private = NULL;
 347                         entry_free( el.el_e );
 348                         return -1;
 349                 }
 350
 351                 el.el_next = (entry_limbo_t *)mi->mi_entry_limbo;
 352                 *elp = el;
 353                 mi->mi_entry_limbo = (void *)elp;
 354         }
 355
 356         return 0;
 357 }
 358
 359 static int
 360 monitor_filter2ndn_cb( Operation *op, SlapReply *rs )
 361 {
 362         if ( rs->sr_type == REP_SEARCH ) {
 363                 struct berval   *ndn = op->o_callback->sc_private;
 364
 365                 ber_dupbv( ndn, &rs->sr_entry->e_nname );
 366         }
 367
 368         return 0;
 369 }
 370
 371 int
 372 monitor_filter2ndn( struct berval *base, int scope, struct berval *filter,
 373                 struct berval *ndn )
 374 {
 375         Connection      conn = { 0 };
 376         char opbuf[OPERATION_BUFFER_SIZE];
 377         Operation       *op;
 378         SlapReply       rs = { 0 };
 379         slap_callback   cb = { NULL, monitor_filter2ndn_cb, NULL, NULL };
 380         AttributeName   anlist[ 2 ];
 381         int             rc;
 382
 383         BER_BVZERO( ndn );
 384
 385         if ( be_monitor == NULL ) {
 386                 return -1;
 387         }
 388
 389         op = (Operation *)opbuf;
 390         connection_fake_init( &conn, op, &conn );
 391
 392         op->o_tag = LDAP_REQ_SEARCH;
 393
 394         /* use global malloc for now */
 395         op->o_tmpmemctx = NULL;
 396         op->o_tmpmfuncs = &ch_mfuncs;
 397
 398         op->o_bd = be_monitor;
 399         if ( base == NULL || BER_BVISNULL( base ) ) {
 400                 ber_dupbv_x( &op->o_req_dn, &op->o_bd->be_suffix[ 0 ],
 401                                 op->o_tmpmemctx );
 402                 ber_dupbv_x( &op->o_req_ndn, &op->o_bd->be_nsuffix[ 0 ],
 403                                 op->o_tmpmemctx );
 404
 405         } else {
 406                 if ( dnPrettyNormal( NULL, base, &op->o_req_dn, &op->o_req_ndn,
 407                                         op->o_tmpmemctx ) ) {
 408                         /* error */
 409                 }
 410         }
 411
 412         op->o_callback = &cb;
 413         cb.sc_private = (void *)ndn;
 414
 415         op->ors_scope = scope;
 416         ber_dupbv_x( &op->ors_filterstr, filter, op->o_tmpmemctx );
 417         op->ors_filter = str2filter_x( op, filter->bv_val );
 418         op->ors_attrs = anlist;
 419         BER_BVSTR( &anlist[ 0 ].an_name, LDAP_NO_ATTRS );
 420         BER_BVZERO( &anlist[ 1 ].an_name );
 421         op->ors_attrsonly = 0;
 422         op->ors_tlimit = SLAP_NO_LIMIT;
 423         op->ors_slimit = 1;
 424         op->ors_limit = NULL;
 425         op->ors_deref = LDAP_DEREF_NEVER;
 426
 427         op->o_nocaching = 1;
 428         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
 429
 430         rc = op->o_bd->be_search( op, &rs );
 431
 432         filter_free_x( op, op->ors_filter );
 433         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
 434         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 435         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 436
 437         if ( rc != 0 ) {
 438                 return rc;
 439         }
 440
 441         switch ( rs.sr_err ) {
 442         case LDAP_SUCCESS:
 443                 if ( BER_BVISNULL( ndn ) ) {
 444                         rc = -1;
 445                 }
 446                 break;
 447
 448         case LDAP_SIZELIMIT_EXCEEDED:
 449         default:
 450                 if ( !BER_BVISNULL( ndn ) ) {
 451                         ber_memfree( ndn->bv_val );
 452                         BER_BVZERO( ndn );
 453                 }
 454                 rc = -1;
 455                 break;
 456         }
 457
 458         return rc;
 459 }
 460
 461 int
 462 monitor_back_register_entry_attrs(
 463                 struct berval           *ndn_in,
 464                 Attribute               *a,
 465                 monitor_callback_t      *cb,
 466                 struct berval           *base,
 467                 int                     scope,
 468                 struct berval           *filter )
 469 {
 470         monitor_info_t  *mi = ( monitor_info_t * )be_monitor->be_private;
 471         struct berval   ndn = BER_BVNULL;
 472
 473         assert( mi != NULL );
 474
 475         if ( ndn_in != NULL ) {
 476                 ndn = *ndn_in;
 477         }
 478
 479         if ( a == NULL && cb == NULL ) {
 480                 /* nothing to do */
 481                 return -1;
 482         }
 483
 484         if ( ( ndn_in == NULL || BER_BVISNULL( &ndn ) )
 485                         && BER_BVISNULL( filter ) )
 486         {
 487                 /* need a filter */
 488                 Debug( LDAP_DEBUG_ANY,
 489                         "monitor_back_register_entry_*(\"\"): "
 490                         "need a valid filter\n",
 491                         0, 0, 0 );
 492                 return -1;
 493         }
 494
 495         if ( monitor_subsys_opened ) {
 496                 Entry                   *e = NULL;
 497                 Attribute               **atp = NULL;
 498                 monitor_entry_t         *mp = NULL;
 499                 monitor_callback_t      **mcp = NULL;
 500                 int                     rc = 0;
 501                 int                     freeit = 0;
 502
 503                 if ( BER_BVISNULL( &ndn ) ) {
 504                         if ( monitor_filter2ndn( base, scope, filter, &ndn ) ) {
 505                                 /* entry does not exist */
 506                                 Debug( LDAP_DEBUG_ANY,
 507                                         "monitor_back_register_entry_*(\"\"): "
 508                                         "base=%s scope=%d filter=%s : "
 509                                         "unable to find entry\n",
 510                                         base->bv_val ? base->bv_val : "\"\"",
 511                                         scope, filter->bv_val );
 512                                 return -1;
 513                         }
 514
 515                         freeit = 1;
 516                 }
 517
 518                 if ( monitor_cache_get( mi, &ndn, &e ) != 0 ) {
 519                         /* entry does not exist */
 520                         Debug( LDAP_DEBUG_ANY,
 521                                 "monitor_back_register_entry_*(\"%s\"): "
 522                                 "entry does not exist\n",
 523                                 ndn.bv_val, 0, 0 );
 524                         rc = -1;
 525                         goto done;
 526                 }
 527
 528                 assert( e->e_private != NULL );
 529                 mp = ( monitor_entry_t * )e->e_private;
 530
 531                 if ( mp->mp_flags & MONITOR_F_VOLATILE ) {
 532                         /* entry is volatile; cannot append callback */
 533                         Debug( LDAP_DEBUG_ANY,
 534                                 "monitor_back_register_entry_*(\"%s\"): "
 535                                 "entry is volatile\n",
 536                                 e->e_name.bv_val, 0, 0 );
 537                         rc = -1;
 538                         goto done;
 539                 }
 540
 541                 if ( a ) {
 542                         for ( atp = &e->e_attrs; *atp; atp = &(*atp)->a_next )
 543                                 /* just get to last */ ;
 544
 545                         *atp = attrs_dup( a );
 546                         if ( *atp == NULL ) {
 547                                 Debug( LDAP_DEBUG_ANY,
 548                                         "monitor_back_register_entry_*(\"%s\"): "
 549                                         "attrs_dup() failed\n",
 550                                         e->e_name.bv_val, 0, 0 );
 551                                 rc = -1;
 552                                 goto done;
 553                         }
 554                 }
 555
 556                 if ( cb ) {
 557                         for ( mcp = &mp->mp_cb; *mcp; mcp = &(*mcp)->mc_next )
 558                                 /* go to tail */ ;
 559
 560                         /* NOTE: we do not clear cb->mc_next, so this function
 561                          * can be used to append a list of callbacks */
 562                         (*mcp) = cb;
 563                 }
 564
 565 done:;
 566                 if ( rc ) {
 567                         if ( *atp ) {
 568                                 attrs_free( *atp );
 569                                 *atp = NULL;
 570                         }
 571                 }
 572
 573                 if ( freeit ) {
 574                         ber_memfree( ndn.bv_val );
 575                 }
 576
 577                 if ( e ) {
 578                         monitor_cache_release( mi, e );
 579                 }
 580
 581         } else {
 582                 entry_limbo_t   *elp, el = { 0 };
 583
 584                 el.el_type = LIMBO_ATTRS;
 585                 if ( !BER_BVISNULL( &ndn ) ) {
 586                         ber_dupbv( &el.el_ndn, &ndn );
 587                 }
 588                 if ( !BER_BVISNULL( base ) ) {
 589                         ber_dupbv( &el.el_base, base);
 590                 }
 591                 el.el_scope = scope;
 592                 if ( !BER_BVISNULL( filter ) ) {
 593                         ber_dupbv( &el.el_filter, filter );
 594                 }
 595
 596                 el.el_a = attrs_dup( a );
 597                 el.el_cb = cb;
 598
 599                 elp = (entry_limbo_t *)ch_malloc( sizeof( entry_limbo_t ) );
 600                 if ( elp == NULL ) {
 601                         attrs_free( a );
 602                         return -1;
 603                 }
 604
 605                 el.el_next = (entry_limbo_t *)mi->mi_entry_limbo;
 606                 *elp = el;
 607                 mi->mi_entry_limbo = (void *)elp;;
 608         }
 609
 610         return 0;
 611 }
 612
 613 int
 614 monitor_back_register_entry_callback(
 615                 struct berval           *ndn,
 616                 monitor_callback_t      *cb,
 617                 struct berval           *base,
 618                 int                     scope,
 619                 struct berval           *filter )
 620 {
 621         return monitor_back_register_entry_attrs( ndn, NULL, cb,
 622                         base, scope, filter );
 623 }
 624
 625 monitor_subsys_t *
 626 monitor_back_get_subsys( const char *name )
 627 {
 628         if ( monitor_subsys != NULL ) {
 629                 int     i;
 630
 631                 for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
 632                         if ( strcasecmp( monitor_subsys[ i ]->mss_name, name ) == 0 ) {
 633                                 return monitor_subsys[ i ];
 634                         }
 635                 }
 636         }
 637
 638         return NULL;
 639 }
 640
 641 monitor_subsys_t *
 642 monitor_back_get_subsys_by_dn( struct berval *ndn, int sub )
 643 {
 644         if ( monitor_subsys != NULL ) {
 645                 int     i;
 646
 647                 if ( sub ) {
 648                         for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
 649                                 if ( dnIsSuffix( ndn, &monitor_subsys[ i ]->mss_ndn ) ) {
 650                                         return monitor_subsys[ i ];
 651                                 }
 652                         }
 653
 654                 } else {
 655                         for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
 656                                 if ( dn_match( ndn, &monitor_subsys[ i ]->mss_ndn ) ) {
 657                                         return monitor_subsys[ i ];
 658                                 }
 659                         }
 660                 }
 661         }
 662
 663         return NULL;
 664 }
 665
 666 int
 667 monitor_back_initialize(
 668         BackendInfo     *bi
 669 )
 670 {
 671         monitor_subsys_t        *ms;
 672         static char             *controls[] = {
 673                 LDAP_CONTROL_MANAGEDSAIT,
 674                 NULL
 675         };
 676
 677         bi->bi_controls = controls;
 678
 679         bi->bi_init = 0;
 680         bi->bi_open = 0;
 681         bi->bi_config = monitor_back_config;
 682         bi->bi_close = 0;
 683         bi->bi_destroy = 0;
 684
 685         bi->bi_db_init = monitor_back_db_init;
 686         bi->bi_db_config = monitor_back_db_config;
 687         bi->bi_db_open = monitor_back_db_open;
 688         bi->bi_db_close = 0;
 689         bi->bi_db_destroy = monitor_back_db_destroy;
 690
 691         bi->bi_op_bind = monitor_back_bind;
 692         bi->bi_op_unbind = 0;
 693         bi->bi_op_search = monitor_back_search;
 694         bi->bi_op_compare = monitor_back_compare;
 695         bi->bi_op_modify = monitor_back_modify;
 696         bi->bi_op_modrdn = 0;
 697         bi->bi_op_add = 0;
 698         bi->bi_op_delete = 0;
 699         bi->bi_op_abandon = 0;
 700
 701         bi->bi_extended = 0;
 702
 703         bi->bi_entry_release_rw = 0;
 704         bi->bi_chk_referrals = 0;
 705         bi->bi_operational = monitor_back_operational;
 706
 707         /*
 708          * hooks for slap tools
 709          */
 710         bi->bi_tool_entry_open = 0;
 711         bi->bi_tool_entry_close = 0;
 712         bi->bi_tool_entry_first = 0;
 713         bi->bi_tool_entry_next = 0;
 714         bi->bi_tool_entry_get = 0;
 715         bi->bi_tool_entry_put = 0;
 716         bi->bi_tool_entry_reindex = 0;
 717         bi->bi_tool_sync = 0;
 718         bi->bi_tool_dn2id_get = 0;
 719         bi->bi_tool_id2entry_get = 0;
 720         bi->bi_tool_entry_modify = 0;
 721
 722         bi->bi_connection_init = 0;
 723         bi->bi_connection_destroy = 0;
 724
 725         for ( ms = known_monitor_subsys; ms->mss_name != NULL; ms++ ) {
 726                 if ( monitor_back_register_subsys( ms ) ) {
 727                         return -1;
 728                 }
 729         }
 730
 731         return 0;
 732 }
 733
 734 int
 735 monitor_back_db_init(
 736         BackendDB       *be
 737 )
 738 {
 739         monitor_info_t  *mi;
 740         int             i, rc;
 741         struct berval   dn, ndn;
 742         struct berval   bv;
 743         const char      *text;
 744
 745         struct m_s {
 746                 char    *name;
 747                 char    *schema;
 748                 slap_mask_t flags;
 749                 int     offset;
 750         } moc[] = {
 751                 { "monitor", "( 1.3.6.1.4.1.4203.666.3.2 "
 752                         "NAME 'monitor' "
 753                         "DESC 'OpenLDAP system monitoring' "
 754                         "SUP top STRUCTURAL "
 755                         "MUST cn "
 756                         "MAY ( "
 757                                 "description "
 758                                 "$ l "
 759 #if 0   /* temporarily disabled */
 760                                 "$ st "
 761                                 "$ street "
 762                                 "$ postalAddress "
 763                                 "$ postalCode "
 764 #endif
 765                                 "$ seeAlso "
 766                                 "$ labeledURI "
 767                                 "$ monitoredInfo "
 768                                 "$ managedInfo "
 769                                 "$ monitorOverlay "
 770                         ") )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
 771                         offsetof(monitor_info_t, mi_oc_monitor) },
 772                 { "monitorServer", "( 1.3.6.1.4.1.4203.666.3.7 "
 773                         "NAME 'monitorServer' "
 774                         "DESC 'Server monitoring root entry' "
 775                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
 776                         offsetof(monitor_info_t, mi_oc_monitorServer) },
 777                 { "monitorContainer", "( 1.3.6.1.4.1.4203.666.3.8 "
 778                         "NAME 'monitorContainer' "
 779                         "DESC 'monitor container class' "
 780                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
 781                         offsetof(monitor_info_t, mi_oc_monitorContainer) },
 782                 { "monitorCounterObject", "( 1.3.6.1.4.1.4203.666.3.9 "
 783                         "NAME 'monitorCounterObject' "
 784                         "DESC 'monitor counter class' "
 785                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
 786                         offsetof(monitor_info_t, mi_oc_monitorCounterObject) },
 787                 { "monitorOperation", "( 1.3.6.1.4.1.4203.666.3.10 "
 788                         "NAME 'monitorOperation' "
 789                         "DESC 'monitor operation class' "
 790                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
 791                         offsetof(monitor_info_t, mi_oc_monitorOperation) },
 792                 { "monitorConnection", "( 1.3.6.1.4.1.4203.666.3.11 "
 793                         "NAME 'monitorConnection' "
 794                         "DESC 'monitor connection class' "
 795                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
 796                         offsetof(monitor_info_t, mi_oc_monitorConnection) },
 797                 { "managedObject", "( 1.3.6.1.4.1.4203.666.3.12 "
 798                         "NAME 'managedObject' "
 799                         "DESC 'monitor managed entity class' "
 800                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
 801                         offsetof(monitor_info_t, mi_oc_managedObject) },
 802                 { "monitoredObject", "( 1.3.6.1.4.1.4203.666.3.14 "
 803                         "NAME 'monitoredObject' "
 804                         "DESC 'monitor monitored entity class' "
 805                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
 806                         offsetof(monitor_info_t, mi_oc_monitoredObject) },
 807                 { NULL, NULL, 0, -1 }
 808         }, mat[] = {
 809                 { "monitoredInfo", "( 1.3.6.1.4.1.4203.666.1.14 "
 810                         "NAME 'monitoredInfo' "
 811                         "DESC 'monitored info' "
 812                         /* "SUP name " */
 813                         "EQUALITY caseIgnoreMatch "
 814                         "SUBSTR caseIgnoreSubstringsMatch "
 815                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{32768} "
 816                         "NO-USER-MODIFICATION "
 817                         "USAGE directoryOperation )", SLAP_AT_HIDE,
 818                         offsetof(monitor_info_t, mi_ad_monitoredInfo) },
 819                 { "managedInfo", "( 1.3.6.1.4.1.4203.666.1.15 "
 820                         "NAME 'managedInfo' "
 821                         "DESC 'monitor managed info' "
 822                         "SUP name )", SLAP_AT_HIDE,
 823                         offsetof(monitor_info_t, mi_ad_managedInfo) },
 824                 { "monitorCounter", "( 1.3.6.1.4.1.4203.666.1.16 "
 825                         "NAME 'monitorCounter' "
 826                         "DESC 'monitor counter' "
 827                         "EQUALITY integerMatch "
 828                         "ORDERING integerOrderingMatch "
 829                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 "
 830                         "NO-USER-MODIFICATION "
 831                         "USAGE directoryOperation )", SLAP_AT_HIDE,
 832                         offsetof(monitor_info_t, mi_ad_monitorCounter) },
 833                 { "monitorOpCompleted", "( 1.3.6.1.4.1.4203.666.1.17 "
 834                         "NAME 'monitorOpCompleted' "
 835                         "DESC 'monitor completed operations' "
 836                         "SUP monitorCounter "
 837                         "NO-USER-MODIFICATION "
 838                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
 839                         offsetof(monitor_info_t, mi_ad_monitorOpCompleted) },
 840                 { "monitorOpInitiated", "( 1.3.6.1.4.1.4203.666.1.18 "
 841                         "NAME 'monitorOpInitiated' "
 842                         "DESC 'monitor initiated operations' "
 843                         "SUP monitorCounter "
 844                         "NO-USER-MODIFICATION "
 845                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
 846                         offsetof(monitor_info_t, mi_ad_monitorOpInitiated) },
 847                 { "monitorConnectionNumber", "( 1.3.6.1.4.1.4203.666.1.19 "
 848                         "NAME 'monitorConnectionNumber' "
 849                         "DESC 'monitor connection number' "
 850                         "SUP monitorCounter "
 851                         "NO-USER-MODIFICATION "
 852                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
 853                         offsetof(monitor_info_t, mi_ad_monitorConnectionNumber) },
 854                 { "monitorConnectionAuthzDN", "( 1.3.6.1.4.1.4203.666.1.20 "
 855                         "NAME 'monitorConnectionAuthzDN' "
 856                         "DESC 'monitor connection authorization DN' "
 857                         /* "SUP distinguishedName " */
 858                         "EQUALITY distinguishedNameMatch "
 859                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 "
 860                         "NO-USER-MODIFICATION "
 861                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
 862                         offsetof(monitor_info_t, mi_ad_monitorConnectionAuthzDN) },
 863                 { "monitorConnectionLocalAddress", "( 1.3.6.1.4.1.4203.666.1.21 "
 864                         "NAME 'monitorConnectionLocalAddress' "
 865                         "DESC 'monitor connection local address' "
 866                         "SUP monitoredInfo "
 867                         "NO-USER-MODIFICATION "
 868                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
 869                         offsetof(monitor_info_t, mi_ad_monitorConnectionLocalAddress) },
 870                 { "monitorConnectionPeerAddress", "( 1.3.6.1.4.1.4203.666.1.22 "
 871                         "NAME 'monitorConnectionPeerAddress' "
 872                         "DESC 'monitor connection peer address' "
 873                         "SUP monitoredInfo "
 874                         "NO-USER-MODIFICATION "
 875                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
 876                         offsetof(monitor_info_t, mi_ad_monitorConnectionPeerAddress) },
 877                 { "monitorTimestamp", "( 1.3.6.1.4.1.4203.666.1.24 "
 878                         "NAME 'monitorTimestamp' "
 879                         "DESC 'monitor timestamp' "
 880                         "EQUALITY generalizedTimeMatch "
 881                         "ORDERING generalizedTimeOrderingMatch "
 882                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.24 "
 883                         "SINGLE-VALUE "
 884                         "NO-USER-MODIFICATION "
 885                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
 886                         offsetof(monitor_info_t, mi_ad_monitorTimestamp) },
 887                 { "monitorOverlay", "( 1.3.6.1.4.1.4203.666.1.27 "
 888                         "NAME 'monitorOverlay' "
 889                         "DESC 'name of overlays defined for a give database' "
 890                         "SUP monitoredInfo "
 891                         "NO-USER-MODIFICATION "
 892                         "USAGE directoryOperation )", SLAP_AT_HIDE,
 893                         offsetof(monitor_info_t, mi_ad_monitorOverlay) },
 894                 { "readOnly", "( 1.3.6.1.4.1.4203.666.1.31 "
 895                         "NAME 'readOnly' "
 896                         "DESC 'read/write status of a given database' "
 897                         "EQUALITY booleanMatch "
 898                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 "
 899                         "SINGLE-VALUE "
 900                         "USAGE directoryOperation )", SLAP_AT_HIDE,
 901                         offsetof(monitor_info_t, mi_ad_readOnly) },
 902                 { "restrictedOperation", "( 1.3.6.1.4.1.4203.666.1.32 "
 903                         "NAME 'restrictedOperation' "
 904                         "DESC 'name of restricted operation for a given database' "
 905                         "SUP managedInfo )", SLAP_AT_HIDE,
 906                         offsetof(monitor_info_t, mi_ad_restrictedOperation ) },
 907 #ifdef INTEGRATE_CORE_SCHEMA
 908                 { NULL, NULL, 0, -1 },  /* description */
 909                 { NULL, NULL, 0, -1 },  /* seeAlso */
 910                 { NULL, NULL, 0, -1 },  /* l */
 911                 { NULL, NULL, 0, -1 },  /* labeledURI */
 912 #endif /* INTEGRATE_CORE_SCHEMA */
 913                 { NULL, NULL, 0, -1 }
 914         }, mat_core[] = {
 915                 { "description", "( 2.5.4.13 "
 916                         "NAME 'description' "
 917                         "DESC 'RFC2256: descriptive information' "
 918                         "EQUALITY caseIgnoreMatch "
 919                         "SUBSTR caseIgnoreSubstringsMatch "
 920                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{1024} )", 0,
 921                         offsetof(monitor_info_t, mi_ad_description) },
 922                 { "seeAlso", "( 2.5.4.34 "
 923                         "NAME 'seeAlso' "
 924                         "DESC 'RFC2256: DN of related object' "
 925                         "SUP distinguishedName )", 0,
 926                         offsetof(monitor_info_t, mi_ad_seeAlso) },
 927                 { "l", "( 2.5.4.7 "
 928                         "NAME ( 'l' 'localityName' ) "
 929                         "DESC 'RFC2256: locality which this object resides in' "
 930                         "SUP name )", 0,
 931                         offsetof(monitor_info_t, mi_ad_l) },
 932 #ifdef MONITOR_DEFINE_LABELEDURI
 933                 { "labeledURI", "( 1.3.6.1.4.1.250.1.57 "
 934                         "NAME 'labeledURI' "
 935                         "DESC 'RFC2079: Uniform Resource Identifier with optional label' "
 936                         "EQUALITY caseExactMatch "
 937                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )", 0,
 938                         offsetof(monitor_info_t, mi_ad_labeledURI) },
 939 #endif /* MONITOR_DEFINE_LABELEDURI */
 940                 { NULL, NULL, 0, -1 }
 941         };
 942
 943         /*
 944          * database monitor can be defined once only
 945          */
 946         if ( be_monitor ) {
 947                 Debug( LDAP_DEBUG_ANY,
 948                         "only one monitor backend is allowed\n", 0, 0, 0 );
 949                 return( -1 );
 950         }
 951         be_monitor = be;
 952
 953         /* indicate system schema supported */
 954         SLAP_BFLAGS(be) |= SLAP_BFLAG_MONITOR;
 955
 956         dn.bv_val = SLAPD_MONITOR_DN;
 957         dn.bv_len = sizeof( SLAPD_MONITOR_DN ) - 1;
 958
 959         rc = dnNormalize( 0, NULL, NULL, &dn, &ndn, NULL );
 960         if( rc != LDAP_SUCCESS ) {
 961                 Debug( LDAP_DEBUG_ANY,
 962                         "unable to normalize monitor DN \"%s\"\n",
 963                         SLAPD_MONITOR_DN, 0, 0 );
 964                 return -1;
 965         }
 966
 967         ber_dupbv( &bv, &dn );
 968         ber_bvarray_add( &be->be_suffix, &bv );
 969         ber_bvarray_add( &be->be_nsuffix, &ndn );
 970
 971         mi = ( monitor_info_t * )ch_calloc( sizeof( monitor_info_t ), 1 );
 972         if ( mi == NULL ) {
 973                 Debug( LDAP_DEBUG_ANY,
 974                         "unable to initialize monitor backend\n", 0, 0, 0 );
 975                 return -1;
 976         }
 977
 978         memset( mi, 0, sizeof( monitor_info_t ) );
 979
 980         ldap_pvt_thread_mutex_init( &mi->mi_cache_mutex );
 981
 982         be->be_private = mi;
 983
 984 #ifdef INTEGRATE_CORE_SCHEMA
 985         /* prepare for schema integration */
 986         for ( k = 0; mat[ k ].name != NULL; k++ );
 987 #endif /* INTEGRATE_CORE_SCHEMA */
 988
 989         for ( i = 0; mat_core[ i ].name != NULL; i++ ) {
 990                 AttributeDescription    **ad;
 991                 const char              *text;
 992
 993                 ad = ((AttributeDescription **)&(((char *)mi)[ mat_core[ i ].offset ]));
 994                 ad[ 0 ] = NULL;
 995
 996                 switch (slap_str2ad( mat_core[ i ].name, ad, &text ) ) {
 997                 case LDAP_SUCCESS:
 998                         break;
 999
1000 #ifdef INTEGRATE_CORE_SCHEMA
1001                 case LDAP_UNDEFINED_TYPE:
1002                         mat[ k ] = mat_core[ i ];
1003                         k++;
1004                         break;
1005 #endif /* INTEGRATE_CORE_SCHEMA */
1006
1007                 default:
1008                         Debug( LDAP_DEBUG_ANY,
1009                                 "monitor_back_db_init: %s: %s\n",
1010                                 mat_core[ i ].name, text, 0 );
1011                         return( -1 );
1012                 }
1013         }
1014
1015         /* schema integration */
1016         for ( i = 0; mat[ i ].name; i++ ) {
1017                 LDAPAttributeType       *at;
1018                 int                     code;
1019                 const char              *err;
1020                 AttributeDescription    **ad;
1021
1022                 at = ldap_str2attributetype( mat[ i ].schema, &code,
1023                         &err, LDAP_SCHEMA_ALLOW_ALL );
1024                 if ( !at ) {
1025                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1026                                 "in AttributeType \"%s\" %s before %s\n",
1027                                 mat[ i ].name, ldap_scherr2str(code), err );
1028                         return -1;
1029                 }
1030
1031                 if ( at->at_oid == NULL ) {
1032                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1033                                 "null OID for attributeType \"%s\"\n",
1034                                 mat[ i ].name, 0, 0 );
1035                         return -1;
1036                 }
1037
1038                 code = at_add(at, &err);
1039                 if ( code ) {
1040                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1041                                 "%s in attributeType \"%s\"\n",
1042                                 scherr2str(code), mat[ i ].name, 0 );
1043                         return -1;
1044                 }
1045                 ldap_memfree(at);
1046
1047                 ad = ((AttributeDescription **)&(((char *)mi)[ mat[ i ].offset ]));
1048                 ad[ 0 ] = NULL;
1049                 if ( slap_str2ad( mat[ i ].name, ad, &text ) ) {
1050                         Debug( LDAP_DEBUG_ANY,
1051                                 "monitor_back_db_init: %s\n", text, 0, 0 );
1052                         return -1;
1053                 }
1054
1055                 (*ad)->ad_type->sat_flags |= mat[ i ].flags;
1056         }
1057
1058         for ( i = 0; moc[ i ].name; i++ ) {
1059                 LDAPObjectClass         *oc;
1060                 int                     code;
1061                 const char              *err;
1062                 ObjectClass             *Oc;
1063
1064                 oc = ldap_str2objectclass(moc[ i ].schema, &code, &err,
1065                                 LDAP_SCHEMA_ALLOW_ALL );
1066                 if ( !oc ) {
1067                         Debug( LDAP_DEBUG_ANY,
1068                                 "unable to parse monitor objectclass \"%s\": "
1069                                 "%s before %s\n" , moc[ i ].name,
1070                                 ldap_scherr2str(code), err );
1071                         return -1;
1072                 }
1073
1074                 if ( oc->oc_oid == NULL ) {
1075                         Debug( LDAP_DEBUG_ANY,
1076                                 "objectclass \"%s\" has no OID\n" ,
1077                                 moc[ i ].name, 0, 0 );
1078                         return -1;
1079                 }
1080
1081                 code = oc_add(oc, 0, &err);
1082                 if ( code ) {
1083                         Debug( LDAP_DEBUG_ANY,
1084                                 "objectclass \"%s\": %s \"%s\"\n" ,
1085                                 moc[ i ].name, scherr2str(code), err );
1086                         return -1;
1087                 }
1088
1089                 ldap_memfree(oc);
1090
1091                 Oc = oc_find( moc[ i ].name );
1092                 if ( Oc == NULL ) {
1093                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1094                                         "unable to find objectClass %s "
1095                                         "(just added)\n", moc[ i ].name, 0, 0 );
1096                         return -1;
1097                 }
1098
1099                 Oc->soc_flags |= moc[ i ].flags;
1100
1101                 ((ObjectClass **)&(((char *)mi)[ moc[ i ].offset ]))[ 0 ] = Oc;
1102         }
1103
1104         return 0;
1105 }
1106
1107 int
1108 monitor_back_db_open(
1109         BackendDB       *be
1110 )
1111 {
1112         monitor_info_t          *mi = (monitor_info_t *)be->be_private;
1113         struct monitor_subsys_t **ms;
1114         Entry                   *e, **ep;
1115         monitor_entry_t         *mp;
1116         int                     i;
1117         char                    buf[ BACKMONITOR_BUFSIZE ],
1118                                 *end_of_line;
1119         struct berval           bv;
1120         struct tm               *tms;
1121 #ifdef HAVE_GMTIME_R
1122         struct tm               tm_buf;
1123 #endif
1124         static char             tmbuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
1125
1126         assert( be_monitor );
1127         if ( be != be_monitor ) {
1128                 be_monitor = be;
1129         }
1130
1131         /*
1132          * Start
1133          */
1134 #ifndef HAVE_GMTIME_R
1135         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
1136 #endif
1137 #ifdef HACK_LOCAL_TIME
1138 # ifdef HAVE_LOCALTIME_R
1139         tms = localtime_r( &starttime, &tm_buf );
1140 # else
1141         tms = localtime( &starttime );
1142 # endif /* HAVE_LOCALTIME_R */
1143         lutil_localtime( tmbuf, sizeof(tmbuf), tms, -timezone );
1144 #else /* !HACK_LOCAL_TIME */
1145 # ifdef HAVE_GMTIME_R
1146         tms = gmtime_r( &starttime, &tm_buf );
1147 # else
1148         tms = gmtime( &starttime );
1149 # endif /* HAVE_GMTIME_R */
1150         lutil_gentime( tmbuf, sizeof(tmbuf), tms );
1151 #endif /* !HACK_LOCAL_TIME */
1152 #ifndef HAVE_GMTIME_R
1153         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
1154 #endif
1155
1156         mi->mi_startTime.bv_val = tmbuf;
1157         mi->mi_startTime.bv_len = strlen( tmbuf );
1158
1159         if ( BER_BVISEMPTY( &be->be_rootdn ) ) {
1160                 BER_BVSTR( &mi->mi_creatorsName, SLAPD_ANONYMOUS );
1161         } else {
1162                 mi->mi_creatorsName = be->be_rootdn;
1163         }
1164
1165         /*
1166          * creates the "cn=Monitor" entry
1167          */
1168         snprintf( buf, sizeof( buf ),
1169                 "dn: %s\n"
1170                 "objectClass: %s\n"
1171                 "structuralObjectClass: %s\n"
1172                 "cn: Monitor\n"
1173                 "%s: This subtree contains monitoring/managing objects.\n"
1174                 "%s: This object contains information about this server.\n"
1175 #if 0
1176                 "%s: createTimestamp reflects the time this server instance was created.\n"
1177                 "%s: modifyTimestamp reflects the time this server instance was last accessed.\n"
1178 #endif
1179                 "creatorsName: %s\n"
1180                 "modifiersName: %s\n"
1181                 "createTimestamp: %s\n"
1182                 "modifyTimestamp: %s\n",
1183                 SLAPD_MONITOR_DN,
1184                 mi->mi_oc_monitorServer->soc_cname.bv_val,
1185                 mi->mi_oc_monitorServer->soc_cname.bv_val,
1186                 mi->mi_ad_description->ad_cname.bv_val,
1187                 mi->mi_ad_description->ad_cname.bv_val,
1188 #if 0
1189                 mi->mi_ad_description->ad_cname.bv_val,
1190                 mi->mi_ad_description->ad_cname.bv_val,
1191 #endif
1192                 mi->mi_creatorsName.bv_val,
1193                 mi->mi_creatorsName.bv_val,
1194                 mi->mi_startTime.bv_val,
1195                 mi->mi_startTime.bv_val );
1196
1197         e = str2entry( buf );
1198         if ( e == NULL) {
1199                 Debug( LDAP_DEBUG_ANY,
1200                         "unable to create \"%s\" entry\n",
1201                         SLAPD_MONITOR_DN, 0, 0 );
1202                 return( -1 );
1203         }
1204
1205         bv.bv_val = (char *) Versionstr;
1206         end_of_line = strchr( Versionstr, '\n' );
1207         if ( end_of_line ) {
1208                 bv.bv_len = end_of_line - Versionstr;
1209         } else {
1210                 bv.bv_len = strlen( Versionstr );
1211         }
1212
1213         if ( attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo,
1214                                 &bv, NULL ) ) {
1215                 Debug( LDAP_DEBUG_ANY,
1216                         "unable to add monitoredInfo to \"%s\" entry\n",
1217                         SLAPD_MONITOR_DN, 0, 0 );
1218                 return( -1 );
1219         }
1220
1221         if ( mi->mi_l.bv_len ) {
1222                 if ( attr_merge_normalize_one( e, mi->mi_ad_l, &mi->mi_l, NULL ) ) {
1223                         Debug( LDAP_DEBUG_ANY,
1224                                 "unable to add locality to \"%s\" entry\n",
1225                                 SLAPD_MONITOR_DN, 0, 0 );
1226                         return( -1 );
1227                 }
1228         }
1229
1230         mp = monitor_entrypriv_create();
1231         if ( mp == NULL ) {
1232                 return -1;
1233         }
1234         e->e_private = ( void * )mp;
1235         ep = &mp->mp_children;
1236
1237         if ( monitor_cache_add( mi, e ) ) {
1238                 Debug( LDAP_DEBUG_ANY,
1239                         "unable to add entry \"%s\" to cache\n",
1240                         SLAPD_MONITOR_DN, 0, 0 );
1241                 return -1;
1242         }
1243
1244         /*
1245          * Create all the subsystem specific entries
1246          */
1247         for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
1248                 int             len = strlen( monitor_subsys[ i ]->mss_name );
1249                 struct berval   dn;
1250                 int             rc;
1251
1252                 dn.bv_len = len + sizeof( "cn=" ) - 1;
1253                 dn.bv_val = ch_calloc( sizeof( char ), dn.bv_len + 1 );
1254                 strcpy( dn.bv_val, "cn=" );
1255                 strcat( dn.bv_val, monitor_subsys[ i ]->mss_name );
1256                 rc = dnPretty( NULL, &dn, &monitor_subsys[ i ]->mss_rdn, NULL );
1257                 free( dn.bv_val );
1258                 if ( rc != LDAP_SUCCESS ) {
1259                         Debug( LDAP_DEBUG_ANY,
1260                                 "monitor RDN \"%s\" is invalid\n",
1261                                 dn.bv_val, 0, 0 );
1262                         return( -1 );
1263                 }
1264
1265                 dn.bv_len += sizeof( SLAPD_MONITOR_DN ); /* 1 for the , */
1266                 dn.bv_val = ch_malloc( dn.bv_len + 1 );
1267                 strcpy( dn.bv_val , monitor_subsys[ i ]->mss_rdn.bv_val );
1268                 strcat( dn.bv_val, "," SLAPD_MONITOR_DN );
1269                 rc = dnPrettyNormal( NULL, &dn, &monitor_subsys[ i ]->mss_dn,
1270                         &monitor_subsys[ i ]->mss_ndn, NULL );
1271                 free( dn.bv_val );
1272                 if ( rc != LDAP_SUCCESS ) {
1273                         Debug( LDAP_DEBUG_ANY,
1274                                 "monitor DN \"%s\" is invalid\n",
1275                                 dn.bv_val, 0, 0 );
1276                         return( -1 );
1277                 }
1278
1279                 snprintf( buf, sizeof( buf ),
1280                                 "dn: %s\n"
1281                                 "objectClass: %s\n"
1282                                 "structuralObjectClass: %s\n"
1283                                 "cn: %s\n"
1284                                 "creatorsName: %s\n"
1285                                 "modifiersName: %s\n"
1286                                 "createTimestamp: %s\n"
1287                                 "modifyTimestamp: %s\n",
1288                                 monitor_subsys[ i ]->mss_dn.bv_val,
1289                                 mi->mi_oc_monitorContainer->soc_cname.bv_val,
1290                                 mi->mi_oc_monitorContainer->soc_cname.bv_val,
1291                                 monitor_subsys[ i ]->mss_name,
1292                                 mi->mi_creatorsName.bv_val,
1293                                 mi->mi_creatorsName.bv_val,
1294                                 mi->mi_startTime.bv_val,
1295                                 mi->mi_startTime.bv_val );
1296
1297                 e = str2entry( buf );
1298
1299                 if ( e == NULL) {
1300                         Debug( LDAP_DEBUG_ANY,
1301                                 "unable to create \"%s\" entry\n",
1302                                 monitor_subsys[ i ]->mss_dn.bv_val, 0, 0 );
1303                         return( -1 );
1304                 }
1305
1306                 mp = monitor_entrypriv_create();
1307                 if ( mp == NULL ) {
1308                         return -1;
1309                 }
1310                 e->e_private = ( void * )mp;
1311                 mp->mp_info = monitor_subsys[ i ];
1312                 mp->mp_flags = monitor_subsys[ i ]->mss_flags;
1313
1314                 if ( monitor_cache_add( mi, e ) ) {
1315                         Debug( LDAP_DEBUG_ANY,
1316                                 "unable to add entry \"%s\" to cache\n",
1317                                 monitor_subsys[ i ]->mss_dn.bv_val, 0, 0 );
1318                         return -1;
1319                 }
1320
1321                 *ep = e;
1322                 ep = &mp->mp_next;
1323         }
1324
1325         assert( be );
1326
1327         be->be_private = mi;
1328
1329         /*
1330          * opens the monitor backend subsystems
1331          */
1332         for ( ms = monitor_subsys; ms[ 0 ] != NULL; ms++ ) {
1333                 if ( ms[ 0 ]->mss_open && ( *ms[ 0 ]->mss_open )( be, ms[ 0 ] ) )
1334                 {
1335                         return( -1 );
1336                 }
1337                 ms[ 0 ]->mss_flags |= MONITOR_F_OPENED;
1338         }
1339
1340         monitor_subsys_opened = 1;
1341
1342         if ( mi->mi_entry_limbo ) {
1343                 entry_limbo_t   *el = (entry_limbo_t *)mi->mi_entry_limbo;
1344
1345                 for ( ; el; ) {
1346                         entry_limbo_t   *tmp;
1347
1348                         switch ( el->el_type ) {
1349                         case LIMBO_ENTRY:
1350                                 monitor_back_register_entry(
1351                                                 el->el_e,
1352                                                 el->el_cb );
1353                                 break;
1354
1355                         case LIMBO_ATTRS:
1356                                 monitor_back_register_entry_attrs(
1357                                                 &el->el_ndn,
1358                                                 el->el_a,
1359                                                 el->el_cb,
1360                                                 &el->el_base,
1361                                                 el->el_scope,
1362                                                 &el->el_filter );
1363                                 break;
1364
1365                         case LIMBO_CB:
1366                                 monitor_back_register_entry_callback(
1367                                                 &el->el_ndn,
1368                                                 el->el_cb,
1369                                                 &el->el_base,
1370                                                 el->el_scope,
1371                                                 &el->el_filter );
1372                                 break;
1373
1374                         default:
1375                                 assert( 0 );
1376                         }
1377
1378                         if ( el->el_e ) {
1379                                 entry_free( el->el_e );
1380                         }
1381                         if ( el->el_a ) {
1382                                 attrs_free( el->el_a );
1383                         }
1384                         if ( !BER_BVISNULL( &el->el_ndn ) ) {
1385                                 ber_memfree( el->el_ndn.bv_val );
1386                         }
1387                         if ( !BER_BVISNULL( &el->el_base ) ) {
1388                                 ber_memfree( el->el_base.bv_val );
1389                         }
1390                         if ( !BER_BVISNULL( &el->el_filter ) ) {
1391                                 ber_memfree( el->el_filter.bv_val );
1392                         }
1393
1394                         tmp = el;
1395                         el = el->el_next;
1396                         ch_free( tmp );
1397                 }
1398
1399                 mi->mi_entry_limbo = NULL;
1400         }
1401
1402         return( 0 );
1403 }
1404
1405 int
1406 monitor_back_config(
1407         BackendInfo     *bi,
1408         const char      *fname,
1409         int             lineno,
1410         int             argc,
1411         char            **argv
1412 )
1413 {
1414         /*
1415          * eventually, will hold backend specific configuration parameters
1416          */
1417         return SLAP_CONF_UNKNOWN;
1418 }
1419
1420 int
1421 monitor_back_db_config(
1422         Backend     *be,
1423         const char  *fname,
1424         int         lineno,
1425         int         argc,
1426         char        **argv
1427 )
1428 {
1429         monitor_info_t  *mi = ( monitor_info_t * )be->be_private;
1430
1431         /*
1432          * eventually, will hold database specific configuration parameters
1433          */
1434         if ( strcasecmp( argv[ 0 ], "l" ) == 0 ) {
1435                 if ( argc != 2 ) {
1436                         return 1;
1437                 }
1438
1439                 ber_str2bv( argv[ 1 ], 0, 1, &mi->mi_l );
1440
1441         } else {
1442                 return SLAP_CONF_UNKNOWN;
1443         }
1444
1445         return( 0 );
1446 }
1447
1448 int
1449 monitor_back_db_destroy(
1450         BackendDB       *be
1451 )
1452 {
1453         /*
1454          * FIXME: destroys all the data
1455          */
1456         return 0;
1457 }
1458
1459 #if SLAPD_MONITOR == SLAPD_MOD_DYNAMIC
1460
1461 /* conditionally define the init_module() function */
1462 SLAP_BACKEND_INIT_MODULE( monitor )
1463
1464 #endif /* SLAPD_MONITOR == SLAPD_MOD_DYNAMIC */
1465