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 "config.h"
  30 #include "lber_pvt.h"
  31 #include "back-monitor.h"
  32
  33 #undef INTEGRATE_CORE_SCHEMA
  34
  35 /*
  36  * used by many functions to add description to entries
  37  *
  38  * WARNING: be_monitor may change as new databases are added,
  39  * so it should not be used outside monitor_back_db_init()
  40  * until monitor_back_db_open is called.
  41  */
  42 BackendDB                       *be_monitor;
  43
  44 static struct monitor_subsys_t  **monitor_subsys;
  45 static int                      monitor_subsys_opened;
  46 static monitor_info_t           monitor_info;
  47
  48 /*
  49  * subsystem data
  50  *
  51  * the known subsystems are added to the subsystems
  52  * array at backend initialization; other subsystems
  53  * may be added by calling monitor_back_register_subsys()
  54  * before the database is opened (e.g. by other backends
  55  * or by overlays or modules).
  56  */
  57 static struct monitor_subsys_t known_monitor_subsys[] = {
  58         {
  59                 SLAPD_MONITOR_BACKEND_NAME,
  60                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  61                 { BER_BVC( "This subsystem contains information about available backends." ),
  62                         BER_BVNULL },
  63                 MONITOR_F_PERSISTENT_CH,
  64                 monitor_subsys_backend_init,
  65                 NULL,   /* destroy */
  66                 NULL,   /* update */
  67                 NULL,   /* create */
  68                 NULL    /* modify */
  69         }, {
  70                 SLAPD_MONITOR_CONN_NAME,
  71                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  72                 { BER_BVC( "This subsystem contains information about connections." ),
  73                         BER_BVNULL },
  74                 MONITOR_F_VOLATILE_CH,
  75                 monitor_subsys_conn_init,
  76                 NULL,   /* destroy */
  77                 NULL,   /* update */
  78                 NULL,   /* create */
  79                 NULL    /* modify */
  80         }, {
  81                 SLAPD_MONITOR_DATABASE_NAME,
  82                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  83                 { BER_BVC( "This subsystem contains information about configured databases." ),
  84                         BER_BVNULL },
  85                 MONITOR_F_PERSISTENT_CH,
  86                 monitor_subsys_database_init,
  87                 NULL,   /* destroy */
  88                 NULL,   /* update */
  89                 NULL,   /* create */
  90                 NULL    /* modify */
  91         }, {
  92                 SLAPD_MONITOR_LISTENER_NAME,
  93                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
  94                 { BER_BVC( "This subsystem contains information about active listeners." ),
  95                         BER_BVNULL },
  96                 MONITOR_F_PERSISTENT_CH,
  97                 monitor_subsys_listener_init,
  98                 NULL,   /* destroy */
  99                 NULL,   /* update */
 100                 NULL,   /* create */
 101                 NULL    /* modify */
 102         }, {
 103                 SLAPD_MONITOR_LOG_NAME,
 104                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 105                 { BER_BVC( "This subsystem contains information about logging." ),
 106                         BER_BVC( "Set the attribute \"managedInfo\" to the desired log levels." ),
 107                         BER_BVNULL },
 108                 MONITOR_F_NONE,
 109                 monitor_subsys_log_init,
 110                 NULL,   /* destroy */
 111                 NULL,   /* update */
 112                 NULL,   /* create */
 113                 NULL,   /* modify */
 114         }, {
 115                 SLAPD_MONITOR_OPS_NAME,
 116                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 117                 { BER_BVC( "This subsystem contains information about performed operations." ),
 118                         BER_BVNULL },
 119                 MONITOR_F_PERSISTENT_CH,
 120                 monitor_subsys_ops_init,
 121                 NULL,   /* destroy */
 122                 NULL,   /* update */
 123                 NULL,   /* create */
 124                 NULL,   /* modify */
 125         }, {
 126                 SLAPD_MONITOR_OVERLAY_NAME,
 127                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 128                 { BER_BVC( "This subsystem contains information about available overlays." ),
 129                         BER_BVNULL },
 130                 MONITOR_F_PERSISTENT_CH,
 131                 monitor_subsys_overlay_init,
 132                 NULL,   /* destroy */
 133                 NULL,   /* update */
 134                 NULL,   /* create */
 135                 NULL,   /* modify */
 136         }, {
 137                 SLAPD_MONITOR_SASL_NAME,
 138                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 139                 { BER_BVC( "This subsystem contains information about SASL." ),
 140                         BER_BVNULL },
 141                 MONITOR_F_NONE,
 142                 NULL,   /* init */
 143                 NULL,   /* destroy */
 144                 NULL,   /* update */
 145                 NULL,   /* create */
 146                 NULL    /* modify */
 147         }, {
 148                 SLAPD_MONITOR_SENT_NAME,
 149                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 150                 { BER_BVC( "This subsystem contains statistics." ),
 151                         BER_BVNULL },
 152                 MONITOR_F_PERSISTENT_CH,
 153                 monitor_subsys_sent_init,
 154                 NULL,   /* destroy */
 155                 NULL,   /* update */
 156                 NULL,   /* create */
 157                 NULL,   /* modify */
 158         }, {
 159                 SLAPD_MONITOR_THREAD_NAME,
 160                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 161                 { BER_BVC( "This subsystem contains information about threads." ),
 162                         BER_BVNULL },
 163                 MONITOR_F_PERSISTENT_CH,
 164                 monitor_subsys_thread_init,
 165                 NULL,   /* destroy */
 166                 NULL,   /* update */
 167                 NULL,   /* create */
 168                 NULL    /* modify */
 169         }, {
 170                 SLAPD_MONITOR_TIME_NAME,
 171                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 172                 { BER_BVC( "This subsystem contains information about time." ),
 173                         BER_BVNULL },
 174                 MONITOR_F_PERSISTENT_CH,
 175                 monitor_subsys_time_init,
 176                 NULL,   /* destroy */
 177                 NULL,   /* update */
 178                 NULL,   /* create */
 179                 NULL,   /* modify */
 180         }, {
 181                 SLAPD_MONITOR_TLS_NAME,
 182                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 183                 { BER_BVC( "This subsystem contains information about TLS." ),
 184                         BER_BVNULL },
 185                 MONITOR_F_NONE,
 186                 NULL,   /* init */
 187                 NULL,   /* destroy */
 188                 NULL,   /* update */
 189                 NULL,   /* create */
 190                 NULL    /* modify */
 191         }, {
 192                 SLAPD_MONITOR_RWW_NAME,
 193                 BER_BVNULL, BER_BVNULL, BER_BVNULL,
 194                 { BER_BVC( "This subsystem contains information about read/write waiters." ),
 195                         BER_BVNULL },
 196                 MONITOR_F_PERSISTENT_CH,
 197                 monitor_subsys_rww_init,
 198                 NULL,   /* destroy */
 199                 NULL,   /* update */
 200                 NULL,   /* create */
 201                 NULL    /* modify */
 202         }, { NULL }
 203 };
 204
 205 int
 206 monitor_back_register_subsys(
 207         monitor_subsys_t        *ms )
 208 {
 209         int     i = 0;
 210
 211         if ( monitor_subsys ) {
 212                 for ( ; monitor_subsys[ i ] != NULL; i++ )
 213                         /* just count'em */ ;
 214         }
 215
 216         monitor_subsys = ch_realloc( monitor_subsys,
 217                         ( 2 + i ) * sizeof( monitor_subsys_t * ) );
 218
 219         if ( monitor_subsys == NULL ) {
 220                 return -1;
 221         }
 222
 223         monitor_subsys[ i ] = ms;
 224         monitor_subsys[ i + 1 ] = NULL;
 225
 226         /* if a subsystem is registered __AFTER__ subsystem
 227          * initialization (depending on the sequence the databases
 228          * are listed in slapd.conf), init it */
 229         if ( monitor_subsys_opened ) {
 230
 231                 /* FIXME: this should only be possible
 232                  * if be_monitor is already initialized */
 233                 assert( be_monitor != NULL );
 234
 235                 if ( ms->mss_open && ( *ms->mss_open )( be_monitor, ms ) ) {
 236                         return -1;
 237                 }
 238
 239                 ms->mss_flags |= MONITOR_F_OPENED;
 240         }
 241
 242         return 0;
 243 }
 244
 245 enum {
 246         LIMBO_ENTRY,
 247         LIMBO_ENTRY_PARENT,
 248         LIMBO_ATTRS,
 249         LIMBO_CB
 250 };
 251
 252 typedef struct entry_limbo_t {
 253         int                     el_type;
 254         Entry                   *el_e;
 255         Attribute               *el_a;
 256         struct berval           el_ndn;
 257         struct berval           el_base;
 258         int                     el_scope;
 259         struct berval           el_filter;
 260         monitor_callback_t      *el_cb;
 261         struct entry_limbo_t    *el_next;
 262 } entry_limbo_t;
 263
 264 int
 265 monitor_back_is_configured( void )
 266 {
 267         return be_monitor != NULL;
 268 }
 269
 270 int
 271 monitor_back_register_entry(
 272         Entry                   *e,
 273         monitor_callback_t      *cb )
 274 {
 275         monitor_info_t  *mi;
 276
 277         if ( be_monitor == NULL ) {
 278                 Debug( LDAP_DEBUG_ANY,
 279                         "monitor_back_register_entry(\"%s\"): "
 280                         "monitor database not configured.\n",
 281                         e->e_name.bv_val, 0, 0 );
 282                 return -1;
 283         }
 284
 285         mi = ( monitor_info_t * )be_monitor->be_private;
 286
 287         assert( mi != NULL );
 288         assert( e != NULL );
 289         assert( e->e_private == NULL );
 290
 291         if ( monitor_subsys_opened ) {
 292                 Entry           *e_parent = NULL,
 293                                 *e_new = NULL,
 294                                 **ep = NULL;
 295                 struct berval   pdn = BER_BVNULL;
 296                 monitor_entry_t *mp = NULL,
 297                                 *mp_parent = NULL;
 298                 int             rc = 0;
 299
 300                 if ( monitor_cache_get( mi, &e->e_nname, &e_parent ) == 0 ) {
 301                         /* entry exists */
 302                         Debug( LDAP_DEBUG_ANY,
 303                                 "monitor_back_register_entry(\"%s\"): "
 304                                 "entry exists\n",
 305                                 e->e_name.bv_val, 0, 0 );
 306                         monitor_cache_release( mi, e_parent );
 307                         return -1;
 308                 }
 309
 310                 dnParent( &e->e_nname, &pdn );
 311                 if ( monitor_cache_get( mi, &pdn, &e_parent ) != 0 ) {
 312                         /* parent does not exist */
 313                         Debug( LDAP_DEBUG_ANY,
 314                                 "monitor_back_register_entry(\"%s\"): "
 315                                 "parent \"%s\" not found\n",
 316                                 e->e_name.bv_val, pdn.bv_val, 0 );
 317                         return -1;
 318                 }
 319
 320                 assert( e_parent->e_private != NULL );
 321                 mp_parent = ( monitor_entry_t * )e_parent->e_private;
 322
 323                 if ( mp_parent->mp_flags & MONITOR_F_VOLATILE ) {
 324                         /* entry is volatile; cannot append children */
 325                         Debug( LDAP_DEBUG_ANY,
 326                                 "monitor_back_register_entry(\"%s\"): "
 327                                 "parent \"%s\" is volatile\n",
 328                                 e->e_name.bv_val, e_parent->e_name.bv_val, 0 );
 329                         rc = -1;
 330                         goto done;
 331                 }
 332
 333                 mp = monitor_entrypriv_create();
 334                 if ( mp == NULL ) {
 335                         Debug( LDAP_DEBUG_ANY,
 336                                 "monitor_back_register_entry(\"%s\"): "
 337                                 "monitor_entrypriv_create() failed\n",
 338                                 e->e_name.bv_val, 0, 0 );
 339                         rc = -1;
 340                         goto done;
 341                 }
 342
 343                 e_new = entry_dup( e );
 344                 if ( e_new == NULL ) {
 345                         Debug( LDAP_DEBUG_ANY,
 346                                 "monitor_back_register_entry(\"%s\"): "
 347                                 "entry_dup() failed\n",
 348                                 e->e_name.bv_val, 0, 0 );
 349                         rc = -1;
 350                         goto done;
 351                 }
 352
 353                 e_new->e_private = ( void * )mp;
 354                 mp->mp_info = mp_parent->mp_info;
 355                 mp->mp_flags = mp_parent->mp_flags | MONITOR_F_SUB;
 356                 mp->mp_cb = cb;
 357
 358                 ep = &mp_parent->mp_children;
 359                 for ( ; *ep; ) {
 360                         mp_parent = ( monitor_entry_t * )(*ep)->e_private;
 361                         ep = &mp_parent->mp_next;
 362                 }
 363                 *ep = e_new;
 364
 365                 if ( monitor_cache_add( mi, e_new ) ) {
 366                         Debug( LDAP_DEBUG_ANY,
 367                                 "monitor_back_register_entry(\"%s\"): "
 368                                 "unable to add entry\n",
 369                                 e->e_name.bv_val, 0, 0 );
 370                         rc = -1;
 371                         goto done;
 372                 }
 373
 374 done:;
 375                 if ( rc ) {
 376                         if ( mp ) {
 377                                 ch_free( mp );
 378                         }
 379                         if ( e_new ) {
 380                                 e_new->e_private = NULL;
 381                                 entry_free( e_new );
 382                         }
 383                 }
 384
 385                 if ( e_parent ) {
 386                         monitor_cache_release( mi, e_parent );
 387                 }
 388
 389         } else {
 390                 entry_limbo_t   **elpp, el = { 0 };
 391
 392                 el.el_type = LIMBO_ENTRY;
 393
 394                 el.el_e = entry_dup( e );
 395                 if ( el.el_e == NULL ) {
 396                         Debug( LDAP_DEBUG_ANY,
 397                                 "monitor_back_register_entry(\"%s\"): "
 398                                 "entry_dup() failed\n",
 399                                 e->e_name.bv_val, 0, 0 );
 400                         return -1;
 401                 }
 402
 403                 el.el_cb = cb;
 404
 405                 for ( elpp = (entry_limbo_t **)&mi->mi_entry_limbo;
 406                                 *elpp;
 407                                 elpp = &(*elpp)->el_next )
 408                         /* go to last */;
 409
 410                 *elpp = (entry_limbo_t *)ch_malloc( sizeof( entry_limbo_t ) );
 411                 if ( *elpp == NULL ) {
 412                         el.el_e->e_private = NULL;
 413                         entry_free( el.el_e );
 414                         return -1;
 415                 }
 416
 417                 el.el_next = NULL;
 418                 **elpp = el;
 419         }
 420
 421         return 0;
 422 }
 423
 424 int
 425 monitor_back_register_entry_parent(
 426         Entry                   *e,
 427         monitor_callback_t      *cb,
 428         struct berval           *base,
 429         int                     scope,
 430         struct berval           *filter )
 431 {
 432         monitor_info_t  *mi;
 433         struct berval   ndn = BER_BVNULL;
 434
 435         if ( be_monitor == NULL ) {
 436                 Debug( LDAP_DEBUG_ANY,
 437                         "monitor_back_register_entry_parent(base=\"%s\" scope=%s filter=\"%s\"): "
 438                         "monitor database not configured.\n",
 439                         BER_BVISNULL( base ) ? "" : base->bv_val,
 440                         scope == LDAP_SCOPE_BASE ? "base" : ( scope == LDAP_SCOPE_ONELEVEL ? "one" : "subtree" ),
 441                         BER_BVISNULL( filter ) ? "" : filter->bv_val );
 442                 return -1;
 443         }
 444
 445         mi = ( monitor_info_t * )be_monitor->be_private;
 446
 447         assert( mi != NULL );
 448         assert( e != NULL );
 449         assert( e->e_private == NULL );
 450
 451         if ( BER_BVISNULL( filter ) ) {
 452                 /* need a filter */
 453                 Debug( LDAP_DEBUG_ANY,
 454                         "monitor_back_register_entry_parent(\"\"): "
 455                         "need a valid filter\n",
 456                         0, 0, 0 );
 457                 return -1;
 458         }
 459
 460         if ( monitor_subsys_opened ) {
 461                 Entry           *e_parent = NULL,
 462                                 *e_new = NULL,
 463                                 **ep = NULL;
 464                 struct berval   e_name = BER_BVNULL,
 465                                 e_nname = BER_BVNULL;
 466                 monitor_entry_t *mp = NULL,
 467                                 *mp_parent = NULL;
 468                 int             rc = 0;
 469
 470                 if ( monitor_filter2ndn( base, scope, filter, &ndn ) ) {
 471                         /* entry does not exist */
 472                         Debug( LDAP_DEBUG_ANY,
 473                                 "monitor_back_register_entry_parent(\"\"): "
 474                                 "base=%s scope=%d filter=%s : "
 475                                 "unable to find entry\n",
 476                                 base->bv_val ? base->bv_val : "\"\"",
 477                                 scope, filter->bv_val );
 478                         return -1;
 479                 }
 480
 481                 if ( monitor_cache_get( mi, &ndn, &e_parent ) != 0 ) {
 482                         /* entry does not exist */
 483                         Debug( LDAP_DEBUG_ANY,
 484                                 "monitor_back_register_entry_parent(\"%s\"): "
 485                                 "parent entry does not exist\n",
 486                                 ndn.bv_val, 0, 0 );
 487                         rc = -1;
 488                         goto done;
 489                 }
 490
 491                 assert( e_parent->e_private != NULL );
 492                 mp_parent = ( monitor_entry_t * )e_parent->e_private;
 493
 494                 if ( mp_parent->mp_flags & MONITOR_F_VOLATILE ) {
 495                         /* entry is volatile; cannot append callback */
 496                         Debug( LDAP_DEBUG_ANY,
 497                                 "monitor_back_register_entry_parent(\"%s\"): "
 498                                 "entry is volatile\n",
 499                                 e_parent->e_name.bv_val, 0, 0 );
 500                         rc = -1;
 501                         goto done;
 502                 }
 503
 504                 build_new_dn( &e_name, &e_parent->e_name, &e->e_name, NULL );
 505                 build_new_dn( &e_nname, &e_parent->e_nname, &e->e_nname, NULL );
 506
 507                 if ( monitor_cache_get( mi, &e_nname, &e_new ) == 0 ) {
 508                         /* entry already exists */
 509                         Debug( LDAP_DEBUG_ANY,
 510                                 "monitor_back_register_entry_parent(\"%s\"): "
 511                                 "entry already exists\n",
 512                                 e_name.bv_val, 0, 0 );
 513                         monitor_cache_release( mi, e_new );
 514                         rc = -1;
 515                         goto done;
 516                 }
 517
 518                 mp = monitor_entrypriv_create();
 519                 if ( mp == NULL ) {
 520                         Debug( LDAP_DEBUG_ANY,
 521                                 "monitor_back_register_entry_parent(\"%s\"): "
 522                                 "monitor_entrypriv_create() failed\n",
 523                                 e->e_name.bv_val, 0, 0 );
 524                         rc = -1;
 525                         goto done;
 526                 }
 527
 528                 e_new = entry_dup( e );
 529                 if ( e_new == NULL ) {
 530                         Debug( LDAP_DEBUG_ANY,
 531                                 "monitor_back_register_entry(\"%s\"): "
 532                                 "entry_dup() failed\n",
 533                                 e->e_name.bv_val, 0, 0 );
 534                         rc = -1;
 535                         goto done;
 536                 }
 537                 ch_free( e_new->e_name.bv_val );
 538                 ch_free( e_new->e_nname.bv_val );
 539                 e_new->e_name = e_name;
 540                 e_new->e_nname = e_nname;
 541
 542                 e_new->e_private = ( void * )mp;
 543                 mp->mp_info = mp_parent->mp_info;
 544                 mp->mp_flags = mp_parent->mp_flags | MONITOR_F_SUB;
 545                 mp->mp_cb = cb;
 546
 547                 ep = &mp_parent->mp_children;
 548                 for ( ; *ep; ) {
 549                         mp_parent = ( monitor_entry_t * )(*ep)->e_private;
 550                         ep = &mp_parent->mp_next;
 551                 }
 552                 *ep = e_new;
 553
 554                 if ( monitor_cache_add( mi, e_new ) ) {
 555                         Debug( LDAP_DEBUG_ANY,
 556                                 "monitor_back_register_entry(\"%s\"): "
 557                                 "unable to add entry\n",
 558                                 e->e_name.bv_val, 0, 0 );
 559                         rc = -1;
 560                         goto done;
 561                 }
 562
 563 done:;
 564                 if ( !BER_BVISNULL( &ndn ) ) {
 565                         ch_free( ndn.bv_val );
 566                 }
 567
 568                 if ( rc ) {
 569                         if ( mp ) {
 570                                 ch_free( mp );
 571                         }
 572                         if ( e_new ) {
 573                                 e_new->e_private = NULL;
 574                                 entry_free( e_new );
 575                         }
 576                 }
 577
 578                 if ( e_parent ) {
 579                         monitor_cache_release( mi, e_parent );
 580                 }
 581
 582         } else {
 583                 entry_limbo_t   **elpp, el = { 0 };
 584
 585                 el.el_type = LIMBO_ENTRY_PARENT;
 586
 587                 el.el_e = entry_dup( e );
 588                 if ( el.el_e == NULL ) {
 589                         Debug( LDAP_DEBUG_ANY,
 590                                 "monitor_back_register_entry(\"%s\"): "
 591                                 "entry_dup() failed\n",
 592                                 e->e_name.bv_val, 0, 0 );
 593                         return -1;
 594                 }
 595
 596                 if ( !BER_BVISNULL( base ) ) {
 597                         ber_dupbv( &el.el_base, base );
 598                 }
 599                 el.el_scope = scope;
 600                 if ( !BER_BVISNULL( filter ) ) {
 601                         ber_dupbv( &el.el_filter, filter );
 602                 }
 603
 604                 el.el_cb = cb;
 605
 606                 for ( elpp = (entry_limbo_t **)&mi->mi_entry_limbo;
 607                                 *elpp;
 608                                 elpp = &(*elpp)->el_next )
 609                         /* go to last */;
 610
 611                 *elpp = (entry_limbo_t *)ch_malloc( sizeof( entry_limbo_t ) );
 612                 if ( *elpp == NULL ) {
 613                         el.el_e->e_private = NULL;
 614                         entry_free( el.el_e );
 615                         return -1;
 616                 }
 617
 618                 el.el_next = NULL;
 619                 **elpp = el;
 620         }
 621
 622         return 0;
 623 }
 624
 625 static int
 626 monitor_filter2ndn_cb( Operation *op, SlapReply *rs )
 627 {
 628         if ( rs->sr_type == REP_SEARCH ) {
 629                 struct berval   *ndn = op->o_callback->sc_private;
 630
 631                 ber_dupbv( ndn, &rs->sr_entry->e_nname );
 632         }
 633
 634         return 0;
 635 }
 636
 637 int
 638 monitor_filter2ndn(
 639         struct berval   *base,
 640         int             scope,
 641         struct berval   *filter,
 642         struct berval   *ndn )
 643 {
 644         Connection      conn = { 0 };
 645         OperationBuffer opbuf;
 646         Operation       *op;
 647         SlapReply       rs = { 0 };
 648         slap_callback   cb = { NULL, monitor_filter2ndn_cb, NULL, NULL };
 649         int             rc;
 650
 651         BER_BVZERO( ndn );
 652
 653         if ( be_monitor == NULL ) {
 654                 return -1;
 655         }
 656
 657         op = (Operation *) &opbuf;
 658         connection_fake_init( &conn, op, &conn );
 659
 660         op->o_tag = LDAP_REQ_SEARCH;
 661
 662         /* use global malloc for now */
 663         if ( op->o_tmpmemctx ) {
 664                 /* FIXME: connection_fake_init() calls slap_sl_mem_create, so we destroy it for now */
 665                 slap_sl_mem_destroy( NULL, op->o_tmpmemctx );
 666                 op->o_tmpmemctx = NULL;
 667         }
 668         op->o_tmpmfuncs = &ch_mfuncs;
 669
 670         op->o_bd = be_monitor;
 671         if ( base == NULL || BER_BVISNULL( base ) ) {
 672                 ber_dupbv_x( &op->o_req_dn, &op->o_bd->be_suffix[ 0 ],
 673                                 op->o_tmpmemctx );
 674                 ber_dupbv_x( &op->o_req_ndn, &op->o_bd->be_nsuffix[ 0 ],
 675                                 op->o_tmpmemctx );
 676
 677         } else {
 678                 if ( dnPrettyNormal( NULL, base, &op->o_req_dn, &op->o_req_ndn,
 679                                         op->o_tmpmemctx ) ) {
 680                         return -1;
 681                 }
 682         }
 683
 684         op->o_callback = &cb;
 685         cb.sc_private = (void *)ndn;
 686
 687         op->ors_scope = scope;
 688         ber_dupbv_x( &op->ors_filterstr, filter, op->o_tmpmemctx );
 689         op->ors_filter = str2filter_x( op, filter->bv_val );
 690         op->ors_attrs = slap_anlist_no_attrs;
 691         op->ors_attrsonly = 0;
 692         op->ors_tlimit = SLAP_NO_LIMIT;
 693         op->ors_slimit = 1;
 694         op->ors_limit = NULL;
 695         op->ors_deref = LDAP_DEREF_NEVER;
 696
 697         op->o_nocaching = 1;
 698         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
 699
 700         op->o_dn = be_monitor->be_rootdn;
 701         op->o_ndn = be_monitor->be_rootndn;
 702
 703         rc = op->o_bd->be_search( op, &rs );
 704
 705         filter_free_x( op, op->ors_filter );
 706         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
 707         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 708         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 709
 710         if ( rc != 0 ) {
 711                 return rc;
 712         }
 713
 714         switch ( rs.sr_err ) {
 715         case LDAP_SUCCESS:
 716                 if ( BER_BVISNULL( ndn ) ) {
 717                         rc = -1;
 718                 }
 719                 break;
 720
 721         case LDAP_SIZELIMIT_EXCEEDED:
 722         default:
 723                 if ( !BER_BVISNULL( ndn ) ) {
 724                         ber_memfree( ndn->bv_val );
 725                         BER_BVZERO( ndn );
 726                 }
 727                 rc = -1;
 728                 break;
 729         }
 730
 731         return rc;
 732 }
 733
 734 int
 735 monitor_back_register_entry_attrs(
 736         struct berval           *ndn_in,
 737         Attribute               *a,
 738         monitor_callback_t      *cb,
 739         struct berval           *base,
 740         int                     scope,
 741         struct berval           *filter )
 742 {
 743         monitor_info_t  *mi;
 744         struct berval   ndn = BER_BVNULL;
 745         char            *fname = ( a == NULL ? "callback" : "attrs" );
 746
 747         if ( be_monitor == NULL ) {
 748                 char            buf[ SLAP_TEXT_BUFLEN ];
 749
 750                 snprintf( buf, sizeof( buf ),
 751                         "monitor_back_register_entry_%s(base=\"%s\" scope=%s filter=\"%s\"): "
 752                         "monitor database not configured.\n",
 753                         fname,
 754                         BER_BVISNULL( base ) ? "" : base->bv_val,
 755                         scope == LDAP_SCOPE_BASE ? "base" : ( scope == LDAP_SCOPE_ONELEVEL ? "one" : "subtree" ),
 756                         BER_BVISNULL( filter ) ? "" : filter->bv_val );
 757                 Debug( LDAP_DEBUG_ANY, "%s\n", buf, 0, 0 );
 758
 759                 return -1;
 760         }
 761
 762         mi = ( monitor_info_t * )be_monitor->be_private;
 763
 764         assert( mi != NULL );
 765
 766         if ( ndn_in != NULL ) {
 767                 ndn = *ndn_in;
 768         }
 769
 770         if ( a == NULL && cb == NULL ) {
 771                 /* nothing to do */
 772                 return -1;
 773         }
 774
 775         if ( ( ndn_in == NULL || BER_BVISNULL( &ndn ) )
 776                         && BER_BVISNULL( filter ) )
 777         {
 778                 /* need a filter */
 779                 Debug( LDAP_DEBUG_ANY,
 780                         "monitor_back_register_entry_%s(\"\"): "
 781                         "need a valid filter\n",
 782                         fname, 0, 0 );
 783                 return -1;
 784         }
 785
 786         if ( monitor_subsys_opened ) {
 787                 Entry                   *e = NULL;
 788                 Attribute               **atp = NULL;
 789                 monitor_entry_t         *mp = NULL;
 790                 monitor_callback_t      **mcp = NULL;
 791                 int                     rc = 0;
 792                 int                     freeit = 0;
 793
 794                 if ( BER_BVISNULL( &ndn ) ) {
 795                         if ( monitor_filter2ndn( base, scope, filter, &ndn ) ) {
 796                                 char            buf[ SLAP_TEXT_BUFLEN ];
 797
 798                                 snprintf( buf, sizeof( buf ),
 799                                         "monitor_back_register_entry_%s(\"\"): "
 800                                         "base=%s scope=%d filter=%s : "
 801                                         "unable to find entry\n",
 802                                         fname,
 803                                         base->bv_val ? base->bv_val : "\"\"",
 804                                         scope, filter->bv_val );
 805
 806                                 /* entry does not exist */
 807                                 Debug( LDAP_DEBUG_ANY, "%s\n", buf, 0, 0 );
 808                                 return -1;
 809                         }
 810
 811                         freeit = 1;
 812                 }
 813
 814                 if ( monitor_cache_get( mi, &ndn, &e ) != 0 ) {
 815                         /* entry does not exist */
 816                         Debug( LDAP_DEBUG_ANY,
 817                                 "monitor_back_register_entry_%s(\"%s\"): "
 818                                 "entry does not exist\n",
 819                                 fname, ndn.bv_val, 0 );
 820                         rc = -1;
 821                         goto done;
 822                 }
 823
 824                 assert( e->e_private != NULL );
 825                 mp = ( monitor_entry_t * )e->e_private;
 826
 827                 if ( mp->mp_flags & MONITOR_F_VOLATILE ) {
 828                         /* entry is volatile; cannot append callback */
 829                         Debug( LDAP_DEBUG_ANY,
 830                                 "monitor_back_register_entry_%s(\"%s\"): "
 831                                 "entry is volatile\n",
 832                                 fname, e->e_name.bv_val, 0 );
 833                         rc = -1;
 834                         goto done;
 835                 }
 836
 837                 if ( a ) {
 838                         for ( atp = &e->e_attrs; *atp; atp = &(*atp)->a_next )
 839                                 /* just get to last */ ;
 840
 841                         *atp = attrs_dup( a );
 842                         if ( *atp == NULL ) {
 843                                 Debug( LDAP_DEBUG_ANY,
 844                                         "monitor_back_register_entry_%s(\"%s\"): "
 845                                         "attrs_dup() failed\n",
 846                                         fname, e->e_name.bv_val, 0 );
 847                                 rc = -1;
 848                                 goto done;
 849                         }
 850                 }
 851
 852                 if ( cb ) {
 853                         for ( mcp = &mp->mp_cb; *mcp; mcp = &(*mcp)->mc_next )
 854                                 /* go to tail */ ;
 855
 856                         /* NOTE: we do not clear cb->mc_next, so this function
 857                          * can be used to append a list of callbacks */
 858                         (*mcp) = cb;
 859                 }
 860
 861 done:;
 862                 if ( rc ) {
 863                         if ( *atp ) {
 864                                 attrs_free( *atp );
 865                                 *atp = NULL;
 866                         }
 867                 }
 868
 869                 if ( freeit ) {
 870                         ber_memfree( ndn.bv_val );
 871                 }
 872
 873                 if ( e ) {
 874                         monitor_cache_release( mi, e );
 875                 }
 876
 877         } else {
 878                 entry_limbo_t   **elpp, el = { 0 };
 879
 880                 el.el_type = LIMBO_ATTRS;
 881                 if ( !BER_BVISNULL( &ndn ) ) {
 882                         ber_dupbv( &el.el_ndn, &ndn );
 883                 }
 884                 if ( !BER_BVISNULL( base ) ) {
 885                         ber_dupbv( &el.el_base, base);
 886                 }
 887                 el.el_scope = scope;
 888                 if ( !BER_BVISNULL( filter ) ) {
 889                         ber_dupbv( &el.el_filter, filter );
 890                 }
 891
 892                 el.el_a = attrs_dup( a );
 893                 el.el_cb = cb;
 894
 895                 for ( elpp = (entry_limbo_t **)&mi->mi_entry_limbo;
 896                                 *elpp;
 897                                 elpp = &(*elpp)->el_next )
 898                         /* go to last */;
 899
 900                 *elpp = (entry_limbo_t *)ch_malloc( sizeof( entry_limbo_t ) );
 901                 if ( *elpp == NULL ) {
 902                         el.el_e->e_private = NULL;
 903                         entry_free( el.el_e );
 904                         return -1;
 905                 }
 906
 907                 el.el_next = NULL;
 908                 **elpp = el;
 909         }
 910
 911         return 0;
 912 }
 913
 914 int
 915 monitor_back_register_entry_callback(
 916         struct berval           *ndn,
 917         monitor_callback_t      *cb,
 918         struct berval           *base,
 919         int                     scope,
 920         struct berval           *filter )
 921 {
 922         return monitor_back_register_entry_attrs( ndn, NULL, cb,
 923                         base, scope, filter );
 924 }
 925
 926 monitor_subsys_t *
 927 monitor_back_get_subsys( const char *name )
 928 {
 929         if ( monitor_subsys != NULL ) {
 930                 int     i;
 931
 932                 for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
 933                         if ( strcasecmp( monitor_subsys[ i ]->mss_name, name ) == 0 ) {
 934                                 return monitor_subsys[ i ];
 935                         }
 936                 }
 937         }
 938
 939         return NULL;
 940 }
 941
 942 monitor_subsys_t *
 943 monitor_back_get_subsys_by_dn(
 944         struct berval   *ndn,
 945         int             sub )
 946 {
 947         if ( monitor_subsys != NULL ) {
 948                 int     i;
 949
 950                 if ( sub ) {
 951                         for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
 952                                 if ( dnIsSuffix( ndn, &monitor_subsys[ i ]->mss_ndn ) ) {
 953                                         return monitor_subsys[ i ];
 954                                 }
 955                         }
 956
 957                 } else {
 958                         for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
 959                                 if ( dn_match( ndn, &monitor_subsys[ i ]->mss_ndn ) ) {
 960                                         return monitor_subsys[ i ];
 961                                 }
 962                         }
 963                 }
 964         }
 965
 966         return NULL;
 967 }
 968
 969 int
 970 monitor_back_initialize(
 971         BackendInfo     *bi )
 972 {
 973         static char             *controls[] = {
 974                 LDAP_CONTROL_MANAGEDSAIT,
 975                 NULL
 976         };
 977
 978         static ConfigTable monitorcfg[] = {
 979                 { NULL, NULL, 0, 0, 0, ARG_IGNORED,
 980                         NULL, NULL, NULL, NULL }
 981         };
 982
 983         static ConfigOCs monitorocs[] = {
 984                 { "( OLcfgDbOc:4.1 "
 985                         "NAME 'olcMonitorConfig' "
 986                         "DESC 'Monitor backend configuration' "
 987                         "SUP olcDatabaseConfig "
 988                         ")",
 989                                 Cft_Database, monitorcfg },
 990                 { NULL, 0, NULL }
 991         };
 992
 993         int             rc;
 994
 995         bi->bi_controls = controls;
 996
 997         bi->bi_init = 0;
 998         bi->bi_open = 0;
 999         bi->bi_config = monitor_back_config;
1000         bi->bi_close = 0;
1001         bi->bi_destroy = 0;
1002
1003         bi->bi_db_init = monitor_back_db_init;
1004         bi->bi_db_config = monitor_back_db_config;
1005         bi->bi_db_open = monitor_back_db_open;
1006         bi->bi_db_close = 0;
1007         bi->bi_db_destroy = monitor_back_db_destroy;
1008
1009         bi->bi_op_bind = monitor_back_bind;
1010         bi->bi_op_unbind = 0;
1011         bi->bi_op_search = monitor_back_search;
1012         bi->bi_op_compare = monitor_back_compare;
1013         bi->bi_op_modify = monitor_back_modify;
1014         bi->bi_op_modrdn = 0;
1015         bi->bi_op_add = 0;
1016         bi->bi_op_delete = 0;
1017         bi->bi_op_abandon = 0;
1018
1019         bi->bi_extended = 0;
1020
1021         bi->bi_entry_release_rw = 0;
1022         bi->bi_chk_referrals = 0;
1023         bi->bi_operational = monitor_back_operational;
1024
1025         /*
1026          * hooks for slap tools
1027          */
1028         bi->bi_tool_entry_open = 0;
1029         bi->bi_tool_entry_close = 0;
1030         bi->bi_tool_entry_first = 0;
1031         bi->bi_tool_entry_next = 0;
1032         bi->bi_tool_entry_get = 0;
1033         bi->bi_tool_entry_put = 0;
1034         bi->bi_tool_entry_reindex = 0;
1035         bi->bi_tool_sync = 0;
1036         bi->bi_tool_dn2id_get = 0;
1037         bi->bi_tool_id2entry_get = 0;
1038         bi->bi_tool_entry_modify = 0;
1039
1040         bi->bi_connection_init = 0;
1041         bi->bi_connection_destroy = 0;
1042
1043         /*
1044          * configuration objectClasses (fake)
1045          */
1046         bi->bi_cf_ocs = monitorocs;
1047
1048         rc = config_register_schema( monitorcfg, monitorocs );
1049         if ( rc ) {
1050                 return rc;
1051         }
1052
1053         return 0;
1054 }
1055
1056 int
1057 monitor_back_db_init(
1058         BackendDB       *be )
1059 {
1060         int                     rc;
1061         struct berval           dn = BER_BVC( SLAPD_MONITOR_DN ),
1062                                 pdn,
1063                                 ndn;
1064         BackendDB               *be2;
1065
1066         monitor_subsys_t        *ms;
1067         monitor_info_t          *mi = &monitor_info;
1068         int                     i;
1069         const char              *text;
1070
1071         struct m_s {
1072                 char    *name;
1073                 char    *schema;
1074                 slap_mask_t flags;
1075                 int     offset;
1076         } moc[] = {
1077                 { "monitor", "( 1.3.6.1.4.1.4203.666.3.16.1 "
1078                         "NAME 'monitor' "
1079                         "DESC 'OpenLDAP system monitoring' "
1080                         "SUP top STRUCTURAL "
1081                         "MUST cn "
1082                         "MAY ( "
1083                                 "description "
1084                                 "$ seeAlso "
1085                                 "$ labeledURI "
1086                                 "$ monitoredInfo "
1087                                 "$ managedInfo "
1088                                 "$ monitorOverlay "
1089                         ") )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1090                         offsetof(monitor_info_t, mi_oc_monitor) },
1091                 { "monitorServer", "( 1.3.6.1.4.1.4203.666.3.16.2 "
1092                         "NAME 'monitorServer' "
1093                         "DESC 'Server monitoring root entry' "
1094                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1095                         offsetof(monitor_info_t, mi_oc_monitorServer) },
1096                 { "monitorContainer", "( 1.3.6.1.4.1.4203.666.3.16.3 "
1097                         "NAME 'monitorContainer' "
1098                         "DESC 'monitor container class' "
1099                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1100                         offsetof(monitor_info_t, mi_oc_monitorContainer) },
1101                 { "monitorCounterObject", "( 1.3.6.1.4.1.4203.666.3.16.4 "
1102                         "NAME 'monitorCounterObject' "
1103                         "DESC 'monitor counter class' "
1104                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1105                         offsetof(monitor_info_t, mi_oc_monitorCounterObject) },
1106                 { "monitorOperation", "( 1.3.6.1.4.1.4203.666.3.16.5 "
1107                         "NAME 'monitorOperation' "
1108                         "DESC 'monitor operation class' "
1109                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1110                         offsetof(monitor_info_t, mi_oc_monitorOperation) },
1111                 { "monitorConnection", "( 1.3.6.1.4.1.4203.666.3.16.6 "
1112                         "NAME 'monitorConnection' "
1113                         "DESC 'monitor connection class' "
1114                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1115                         offsetof(monitor_info_t, mi_oc_monitorConnection) },
1116                 { "managedObject", "( 1.3.6.1.4.1.4203.666.3.16.7 "
1117                         "NAME 'managedObject' "
1118                         "DESC 'monitor managed entity class' "
1119                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1120                         offsetof(monitor_info_t, mi_oc_managedObject) },
1121                 { "monitoredObject", "( 1.3.6.1.4.1.4203.666.3.16.8 "
1122                         "NAME 'monitoredObject' "
1123                         "DESC 'monitor monitored entity class' "
1124                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1125                         offsetof(monitor_info_t, mi_oc_monitoredObject) },
1126                 { NULL, NULL, 0, -1 }
1127         }, mat[] = {
1128                 { "monitoredInfo", "( 1.3.6.1.4.1.4203.666.1.55.1 "
1129                         "NAME 'monitoredInfo' "
1130                         "DESC 'monitored info' "
1131                         /* "SUP name " */
1132                         "EQUALITY caseIgnoreMatch "
1133                         "SUBSTR caseIgnoreSubstringsMatch "
1134                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{32768} "
1135                         "NO-USER-MODIFICATION "
1136                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1137                         offsetof(monitor_info_t, mi_ad_monitoredInfo) },
1138                 { "managedInfo", "( 1.3.6.1.4.1.4203.666.1.55.2 "
1139                         "NAME 'managedInfo' "
1140                         "DESC 'monitor managed info' "
1141                         "SUP name )", SLAP_AT_HIDE,
1142                         offsetof(monitor_info_t, mi_ad_managedInfo) },
1143                 { "monitorCounter", "( 1.3.6.1.4.1.4203.666.1.55.3 "
1144                         "NAME 'monitorCounter' "
1145                         "DESC 'monitor counter' "
1146                         "EQUALITY integerMatch "
1147                         "ORDERING integerOrderingMatch "
1148                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 "
1149                         "NO-USER-MODIFICATION "
1150                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1151                         offsetof(monitor_info_t, mi_ad_monitorCounter) },
1152                 { "monitorOpCompleted", "( 1.3.6.1.4.1.4203.666.1.55.4 "
1153                         "NAME 'monitorOpCompleted' "
1154                         "DESC 'monitor completed operations' "
1155                         "SUP monitorCounter "
1156                         "NO-USER-MODIFICATION "
1157                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1158                         offsetof(monitor_info_t, mi_ad_monitorOpCompleted) },
1159                 { "monitorOpInitiated", "( 1.3.6.1.4.1.4203.666.1.55.5 "
1160                         "NAME 'monitorOpInitiated' "
1161                         "DESC 'monitor initiated operations' "
1162                         "SUP monitorCounter "
1163                         "NO-USER-MODIFICATION "
1164                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1165                         offsetof(monitor_info_t, mi_ad_monitorOpInitiated) },
1166                 { "monitorConnectionNumber", "( 1.3.6.1.4.1.4203.666.1.55.6 "
1167                         "NAME 'monitorConnectionNumber' "
1168                         "DESC 'monitor connection number' "
1169                         "SUP monitorCounter "
1170                         "NO-USER-MODIFICATION "
1171                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1172                         offsetof(monitor_info_t, mi_ad_monitorConnectionNumber) },
1173                 { "monitorConnectionAuthzDN", "( 1.3.6.1.4.1.4203.666.1.55.7 "
1174                         "NAME 'monitorConnectionAuthzDN' "
1175                         "DESC 'monitor connection authorization DN' "
1176                         /* "SUP distinguishedName " */
1177                         "EQUALITY distinguishedNameMatch "
1178                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 "
1179                         "NO-USER-MODIFICATION "
1180                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1181                         offsetof(monitor_info_t, mi_ad_monitorConnectionAuthzDN) },
1182                 { "monitorConnectionLocalAddress", "( 1.3.6.1.4.1.4203.666.1.55.8 "
1183                         "NAME 'monitorConnectionLocalAddress' "
1184                         "DESC 'monitor connection local address' "
1185                         "SUP monitoredInfo "
1186                         "NO-USER-MODIFICATION "
1187                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1188                         offsetof(monitor_info_t, mi_ad_monitorConnectionLocalAddress) },
1189                 { "monitorConnectionPeerAddress", "( 1.3.6.1.4.1.4203.666.1.55.9 "
1190                         "NAME 'monitorConnectionPeerAddress' "
1191                         "DESC 'monitor connection peer address' "
1192                         "SUP monitoredInfo "
1193                         "NO-USER-MODIFICATION "
1194                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1195                         offsetof(monitor_info_t, mi_ad_monitorConnectionPeerAddress) },
1196                 { "monitorTimestamp", "( 1.3.6.1.4.1.4203.666.1.55.10 "
1197                         "NAME 'monitorTimestamp' "
1198                         "DESC 'monitor timestamp' "
1199                         "EQUALITY generalizedTimeMatch "
1200                         "ORDERING generalizedTimeOrderingMatch "
1201                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.24 "
1202                         "SINGLE-VALUE "
1203                         "NO-USER-MODIFICATION "
1204                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1205                         offsetof(monitor_info_t, mi_ad_monitorTimestamp) },
1206                 { "monitorOverlay", "( 1.3.6.1.4.1.4203.666.1.55.11 "
1207                         "NAME 'monitorOverlay' "
1208                         "DESC 'name of overlays defined for a given database' "
1209                         "SUP monitoredInfo "
1210                         "NO-USER-MODIFICATION "
1211                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1212                         offsetof(monitor_info_t, mi_ad_monitorOverlay) },
1213                 { "readOnly", "( 1.3.6.1.4.1.4203.666.1.55.12 "
1214                         "NAME 'readOnly' "
1215                         "DESC 'read/write status of a given database' "
1216                         "EQUALITY booleanMatch "
1217                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 "
1218                         "SINGLE-VALUE "
1219                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1220                         offsetof(monitor_info_t, mi_ad_readOnly) },
1221                 { "restrictedOperation", "( 1.3.6.1.4.1.4203.666.1.55.13 "
1222                         "NAME 'restrictedOperation' "
1223                         "DESC 'name of restricted operation for a given database' "
1224                         "SUP managedInfo )", SLAP_AT_HIDE,
1225                         offsetof(monitor_info_t, mi_ad_restrictedOperation ) },
1226                 { "monitorConnectionProtocol", "( 1.3.6.1.4.1.4203.666.1.55.14 "
1227                         "NAME 'monitorConnectionProtocol' "
1228                         "DESC 'monitor connection protocol' "
1229                         "SUP monitoredInfo "
1230                         "NO-USER-MODIFICATION "
1231                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1232                         offsetof(monitor_info_t, mi_ad_monitorConnectionProtocol) },
1233                 { "monitorConnectionOpsReceived", "( 1.3.6.1.4.1.4203.666.1.55.15 "
1234                         "NAME 'monitorConnectionOpsReceived' "
1235                         "DESC 'monitor number of operations received by the connection' "
1236                         "SUP monitorCounter "
1237                         "NO-USER-MODIFICATION "
1238                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1239                         offsetof(monitor_info_t, mi_ad_monitorConnectionOpsReceived) },
1240                 { "monitorConnectionOpsExecuting", "( 1.3.6.1.4.1.4203.666.1.55.16 "
1241                         "NAME 'monitorConnectionOpsExecuting' "
1242                         "DESC 'monitor number of operations in execution within the connection' "
1243                         "SUP monitorCounter "
1244                         "NO-USER-MODIFICATION "
1245                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1246                         offsetof(monitor_info_t, mi_ad_monitorConnectionOpsExecuting) },
1247                 { "monitorConnectionOpsPending", "( 1.3.6.1.4.1.4203.666.1.55.17 "
1248                         "NAME 'monitorConnectionOpsPending' "
1249                         "DESC 'monitor number of pending operations within the connection' "
1250                         "SUP monitorCounter "
1251                         "NO-USER-MODIFICATION "
1252                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1253                         offsetof(monitor_info_t, mi_ad_monitorConnectionOpsPending) },
1254                 { "monitorConnectionOpsCompleted", "( 1.3.6.1.4.1.4203.666.1.55.18 "
1255                         "NAME 'monitorConnectionOpsCompleted' "
1256                         "DESC 'monitor number of operations completed within the connection' "
1257                         "SUP monitorCounter "
1258                         "NO-USER-MODIFICATION "
1259                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1260                         offsetof(monitor_info_t, mi_ad_monitorConnectionOpsCompleted) },
1261                 { "monitorConnectionGet", "( 1.3.6.1.4.1.4203.666.1.55.19 "
1262                         "NAME 'monitorConnectionGet' "
1263                         "DESC 'number of times connection_get() was called so far' "
1264                         "SUP monitorCounter "
1265                         "NO-USER-MODIFICATION "
1266                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1267                         offsetof(monitor_info_t, mi_ad_monitorConnectionGet) },
1268                 { "monitorConnectionRead", "( 1.3.6.1.4.1.4203.666.1.55.20 "
1269                         "NAME 'monitorConnectionRead' "
1270                         "DESC 'number of times connection_read() was called so far' "
1271                         "SUP monitorCounter "
1272                         "NO-USER-MODIFICATION "
1273                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1274                         offsetof(monitor_info_t, mi_ad_monitorConnectionRead) },
1275                 { "monitorConnectionWrite", "( 1.3.6.1.4.1.4203.666.1.55.21 "
1276                         "NAME 'monitorConnectionWrite' "
1277                         "DESC 'number of times connection_write() was called so far' "
1278                         "SUP monitorCounter "
1279                         "NO-USER-MODIFICATION "
1280                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1281                         offsetof(monitor_info_t, mi_ad_monitorConnectionWrite) },
1282                 { "monitorConnectionMask", "( 1.3.6.1.4.1.4203.666.1.55.22 "
1283                         "NAME 'monitorConnectionMask' "
1284                         "DESC 'monitor connection mask' "
1285                         "SUP monitoredInfo "
1286                         "NO-USER-MODIFICATION "
1287                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1288                         offsetof(monitor_info_t, mi_ad_monitorConnectionMask) },
1289                 { "monitorConnectionListener", "( 1.3.6.1.4.1.4203.666.1.55.23 "
1290                         "NAME 'monitorConnectionListener' "
1291                         "DESC 'monitor connection listener' "
1292                         "SUP monitoredInfo "
1293                         "NO-USER-MODIFICATION "
1294                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1295                         offsetof(monitor_info_t, mi_ad_monitorConnectionListener) },
1296                 { "monitorConnectionPeerDomain", "( 1.3.6.1.4.1.4203.666.1.55.24 "
1297                         "NAME 'monitorConnectionPeerDomain' "
1298                         "DESC 'monitor connection peer domain' "
1299                         "SUP monitoredInfo "
1300                         "NO-USER-MODIFICATION "
1301                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1302                         offsetof(monitor_info_t, mi_ad_monitorConnectionPeerDomain) },
1303                 { "monitorConnectionStartTime", "( 1.3.6.1.4.1.4203.666.1.55.25 "
1304                         "NAME 'monitorConnectionStartTime' "
1305                         "DESC 'monitor connection start time' "
1306                         "SUP monitorTimestamp "
1307                         "SINGLE-VALUE "
1308                         "NO-USER-MODIFICATION "
1309                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1310                         offsetof(monitor_info_t, mi_ad_monitorConnectionStartTime) },
1311                 { "monitorConnectionActivityTime", "( 1.3.6.1.4.1.4203.666.1.55.26 "
1312                         "NAME 'monitorConnectionActivityTime' "
1313                         "DESC 'monitor connection activity time' "
1314                         "SUP monitorTimestamp "
1315                         "SINGLE-VALUE "
1316                         "NO-USER-MODIFICATION "
1317                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1318                         offsetof(monitor_info_t, mi_ad_monitorConnectionActivityTime) },
1319                 { "monitorIsShadow", "( 1.3.6.1.4.1.4203.666.1.55.27 "
1320                         "NAME 'monitorIsShadow' "
1321                         "DESC 'TRUE if the database is shadow' "
1322                         "EQUALITY booleanMatch "
1323                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 "
1324                         "SINGLE-VALUE "
1325                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1326                         offsetof(monitor_info_t, mi_ad_monitorIsShadow) },
1327                 { "monitorUpdateRef", "( 1.3.6.1.4.1.4203.666.1.55.28 "
1328                         "NAME 'monitorUpdateRef' "
1329                         "DESC 'update referral for shadow databases' "
1330                         "SUP monitoredInfo "
1331                         "SINGLE-VALUE "
1332                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1333                         offsetof(monitor_info_t, mi_ad_monitorUpdateRef) },
1334                 { "monitorRuntimeConfig", "( 1.3.6.1.4.1.4203.666.1.55.29 "
1335                         "NAME 'monitorRuntimeConfig' "
1336                         "DESC 'TRUE if component allows runtime configuration' "
1337                         "EQUALITY booleanMatch "
1338                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 "
1339                         "SINGLE-VALUE "
1340                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1341                         offsetof(monitor_info_t, mi_ad_monitorRuntimeConfig) },
1342                 { NULL, NULL, 0, -1 }
1343         };
1344
1345         /*
1346          * register subsys
1347          */
1348         for ( ms = known_monitor_subsys; ms->mss_name != NULL; ms++ ) {
1349                 if ( monitor_back_register_subsys( ms ) ) {
1350                         return -1;
1351                 }
1352         }
1353
1354         /* schema integration */
1355         for ( i = 0; mat[ i ].name; i++ ) {
1356                 LDAPAttributeType       *at;
1357                 int                     code;
1358                 const char              *err;
1359                 AttributeDescription    **ad;
1360
1361                 at = ldap_str2attributetype( mat[ i ].schema, &code,
1362                         &err, LDAP_SCHEMA_ALLOW_ALL );
1363                 if ( !at ) {
1364                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1365                                 "in AttributeType \"%s\" %s before %s\n",
1366                                 mat[ i ].name, ldap_scherr2str(code), err );
1367                         return -1;
1368                 }
1369
1370                 if ( at->at_oid == NULL ) {
1371                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1372                                 "null OID for attributeType \"%s\"\n",
1373                                 mat[ i ].name, 0, 0 );
1374                         return -1;
1375                 }
1376
1377                 code = at_add(at, 0, NULL, &err);
1378                 if ( code ) {
1379                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1380                                 "%s in attributeType \"%s\"\n",
1381                                 scherr2str(code), mat[ i ].name, 0 );
1382                         return -1;
1383                 }
1384                 ldap_memfree(at);
1385
1386                 ad = ((AttributeDescription **)&(((char *)mi)[ mat[ i ].offset ]));
1387                 ad[ 0 ] = NULL;
1388                 if ( slap_str2ad( mat[ i ].name, ad, &text ) ) {
1389                         Debug( LDAP_DEBUG_ANY,
1390                                 "monitor_back_db_init: %s\n", text, 0, 0 );
1391                         return -1;
1392                 }
1393
1394                 (*ad)->ad_type->sat_flags |= mat[ i ].flags;
1395         }
1396
1397         for ( i = 0; moc[ i ].name; i++ ) {
1398                 LDAPObjectClass         *oc;
1399                 int                     code;
1400                 const char              *err;
1401                 ObjectClass             *Oc;
1402
1403                 oc = ldap_str2objectclass(moc[ i ].schema, &code, &err,
1404                                 LDAP_SCHEMA_ALLOW_ALL );
1405                 if ( !oc ) {
1406                         Debug( LDAP_DEBUG_ANY,
1407                                 "unable to parse monitor objectclass \"%s\": "
1408                                 "%s before %s\n" , moc[ i ].name,
1409                                 ldap_scherr2str(code), err );
1410                         return -1;
1411                 }
1412
1413                 if ( oc->oc_oid == NULL ) {
1414                         Debug( LDAP_DEBUG_ANY,
1415                                 "objectclass \"%s\" has no OID\n" ,
1416                                 moc[ i ].name, 0, 0 );
1417                         return -1;
1418                 }
1419
1420                 code = oc_add(oc, 0, NULL, &err);
1421                 if ( code ) {
1422                         Debug( LDAP_DEBUG_ANY,
1423                                 "objectclass \"%s\": %s \"%s\"\n" ,
1424                                 moc[ i ].name, scherr2str(code), err );
1425                         return -1;
1426                 }
1427
1428                 ldap_memfree(oc);
1429
1430                 Oc = oc_find( moc[ i ].name );
1431                 if ( Oc == NULL ) {
1432                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1433                                         "unable to find objectClass %s "
1434                                         "(just added)\n", moc[ i ].name, 0, 0 );
1435                         return -1;
1436                 }
1437
1438                 Oc->soc_flags |= moc[ i ].flags;
1439
1440                 ((ObjectClass **)&(((char *)mi)[ moc[ i ].offset ]))[ 0 ] = Oc;
1441         }
1442
1443         /*
1444          * database monitor can be defined once only
1445          */
1446         if ( be_monitor != NULL ) {
1447                 Debug( LDAP_DEBUG_ANY,
1448                         "only one monitor database is allowed\n", 0, 0, 0 );
1449                 return( -1 );
1450         }
1451         be_monitor = be;
1452
1453         /* indicate system schema supported */
1454         SLAP_BFLAGS(be) |= SLAP_BFLAG_MONITOR;
1455
1456         rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn, NULL );
1457         if( rc != LDAP_SUCCESS ) {
1458                 Debug( LDAP_DEBUG_ANY,
1459                         "unable to normalize/pretty monitor DN \"%s\" (%d)\n",
1460                         dn.bv_val, rc, 0 );
1461                 return -1;
1462         }
1463
1464         ber_bvarray_add( &be->be_suffix, &pdn );
1465         ber_bvarray_add( &be->be_nsuffix, &ndn );
1466
1467         /* NOTE: only one monitor database is allowed,
1468          * so we use static storage */
1469         ldap_pvt_thread_mutex_init( &monitor_info.mi_cache_mutex );
1470
1471         be->be_private = &monitor_info;
1472
1473         be2 = select_backend( &ndn, 0, 0 );
1474         if ( be2 != be ) {
1475                 char    *type = be2->bd_info->bi_type;
1476
1477                 if ( overlay_is_over( be2 ) ) {
1478                         slap_overinfo   *oi = (slap_overinfo *)be2->bd_info->bi_private;
1479                         type = oi->oi_orig->bi_type;
1480                 }
1481
1482                 Debug( LDAP_DEBUG_ANY,
1483                         "\"monitor\" database serving namingContext \"%s\" "
1484                         "is hidden by \"%s\" database serving namingContext \"%s\".\n",
1485                         pdn.bv_val, type, be2->be_nsuffix[ 0 ].bv_val );
1486                 return -1;
1487         }
1488
1489         return 0;
1490 }
1491
1492 int
1493 monitor_back_db_open(
1494         BackendDB       *be )
1495 {
1496         monitor_info_t          *mi = (monitor_info_t *)be->be_private;
1497         struct monitor_subsys_t **ms;
1498         Entry                   *e, **ep;
1499         monitor_entry_t         *mp;
1500         int                     i;
1501         char                    buf[ BACKMONITOR_BUFSIZE ];
1502         struct berval           bv;
1503         struct tm               *tms;
1504 #ifdef HAVE_GMTIME_R
1505         struct tm               tm_buf;
1506 #endif
1507         static char             tmbuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
1508
1509         assert( be_monitor != NULL );
1510         if ( be != be_monitor ) {
1511                 be_monitor = be;
1512         }
1513
1514         /*
1515          * Start
1516          */
1517 #ifndef HAVE_GMTIME_R
1518         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
1519 #endif
1520 #ifdef HACK_LOCAL_TIME
1521 # ifdef HAVE_LOCALTIME_R
1522         tms = localtime_r( &starttime, &tm_buf );
1523 # else
1524         tms = localtime( &starttime );
1525 # endif /* HAVE_LOCALTIME_R */
1526         lutil_localtime( tmbuf, sizeof(tmbuf), tms, -timezone );
1527 #else /* !HACK_LOCAL_TIME */
1528 # ifdef HAVE_GMTIME_R
1529         tms = gmtime_r( &starttime, &tm_buf );
1530 # else
1531         tms = gmtime( &starttime );
1532 # endif /* HAVE_GMTIME_R */
1533         lutil_gentime( tmbuf, sizeof(tmbuf), tms );
1534 #endif /* !HACK_LOCAL_TIME */
1535 #ifndef HAVE_GMTIME_R
1536         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
1537 #endif
1538
1539         mi->mi_startTime.bv_val = tmbuf;
1540         mi->mi_startTime.bv_len = strlen( tmbuf );
1541
1542         if ( BER_BVISEMPTY( &be->be_rootdn ) ) {
1543                 BER_BVSTR( &mi->mi_creatorsName, SLAPD_ANONYMOUS );
1544         } else {
1545                 mi->mi_creatorsName = be->be_rootdn;
1546         }
1547
1548         /*
1549          * creates the "cn=Monitor" entry
1550          */
1551         snprintf( buf, sizeof( buf ),
1552                 "dn: %s\n"
1553                 "objectClass: %s\n"
1554                 "structuralObjectClass: %s\n"
1555                 "cn: Monitor\n"
1556                 "description: This subtree contains monitoring/managing objects.\n"
1557                 "description: This object contains information about this server.\n"
1558                 "description: Most of the information is held in operational"
1559                 " attributeTypes, which must be explicitly requested.\n"
1560                 "creatorsName: %s\n"
1561                 "modifiersName: %s\n"
1562                 "createTimestamp: %s\n"
1563                 "modifyTimestamp: %s\n",
1564                 SLAPD_MONITOR_DN,
1565                 mi->mi_oc_monitorServer->soc_cname.bv_val,
1566                 mi->mi_oc_monitorServer->soc_cname.bv_val,
1567                 mi->mi_creatorsName.bv_val,
1568                 mi->mi_creatorsName.bv_val,
1569                 mi->mi_startTime.bv_val,
1570                 mi->mi_startTime.bv_val );
1571
1572         e = str2entry( buf );
1573         if ( e == NULL) {
1574                 Debug( LDAP_DEBUG_ANY,
1575                         "unable to create \"%s\" entry\n",
1576                         SLAPD_MONITOR_DN, 0, 0 );
1577                 return( -1 );
1578         }
1579
1580         bv.bv_val = strchr( (char *) Versionstr, '$' );
1581         if ( bv.bv_val != NULL ) {
1582                 char    *end;
1583
1584                 bv.bv_val++;
1585                 for ( ; bv.bv_val[ 0 ] == ' '; bv.bv_val++ )
1586                         ;
1587
1588                 end = strchr( bv.bv_val, '$' );
1589                 if ( end != NULL ) {
1590                         end--;
1591
1592                         for ( ; end > bv.bv_val && end[ 0 ] == ' '; end-- )
1593                                 ;
1594
1595                         end++;
1596
1597                         bv.bv_len = end - bv.bv_val;
1598
1599                 } else {
1600                         bv.bv_len = strlen( bv.bv_val );
1601                 }
1602
1603                 if ( attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo,
1604                                         &bv, NULL ) ) {
1605                         Debug( LDAP_DEBUG_ANY,
1606                                 "unable to add monitoredInfo to \"%s\" entry\n",
1607                                 SLAPD_MONITOR_DN, 0, 0 );
1608                         return( -1 );
1609                 }
1610         }
1611
1612         mp = monitor_entrypriv_create();
1613         if ( mp == NULL ) {
1614                 return -1;
1615         }
1616         e->e_private = ( void * )mp;
1617         ep = &mp->mp_children;
1618
1619         if ( monitor_cache_add( mi, e ) ) {
1620                 Debug( LDAP_DEBUG_ANY,
1621                         "unable to add entry \"%s\" to cache\n",
1622                         SLAPD_MONITOR_DN, 0, 0 );
1623                 return -1;
1624         }
1625
1626         /*
1627          * Create all the subsystem specific entries
1628          */
1629         for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
1630                 int             len = strlen( monitor_subsys[ i ]->mss_name );
1631                 struct berval   dn;
1632                 int             rc;
1633
1634                 dn.bv_len = len + sizeof( "cn=" ) - 1;
1635                 dn.bv_val = ch_calloc( sizeof( char ), dn.bv_len + 1 );
1636                 strcpy( dn.bv_val, "cn=" );
1637                 strcat( dn.bv_val, monitor_subsys[ i ]->mss_name );
1638                 rc = dnPretty( NULL, &dn, &monitor_subsys[ i ]->mss_rdn, NULL );
1639                 free( dn.bv_val );
1640                 if ( rc != LDAP_SUCCESS ) {
1641                         Debug( LDAP_DEBUG_ANY,
1642                                 "monitor RDN \"%s\" is invalid\n",
1643                                 dn.bv_val, 0, 0 );
1644                         return( -1 );
1645                 }
1646
1647                 dn.bv_len += sizeof( SLAPD_MONITOR_DN ); /* 1 for the , */
1648                 dn.bv_val = ch_malloc( dn.bv_len + 1 );
1649                 strcpy( dn.bv_val , monitor_subsys[ i ]->mss_rdn.bv_val );
1650                 strcat( dn.bv_val, "," SLAPD_MONITOR_DN );
1651                 rc = dnPrettyNormal( NULL, &dn, &monitor_subsys[ i ]->mss_dn,
1652                         &monitor_subsys[ i ]->mss_ndn, NULL );
1653                 free( dn.bv_val );
1654                 if ( rc != LDAP_SUCCESS ) {
1655                         Debug( LDAP_DEBUG_ANY,
1656                                 "monitor DN \"%s\" is invalid\n",
1657                                 dn.bv_val, 0, 0 );
1658                         return( -1 );
1659                 }
1660
1661                 snprintf( buf, sizeof( buf ),
1662                                 "dn: %s\n"
1663                                 "objectClass: %s\n"
1664                                 "structuralObjectClass: %s\n"
1665                                 "cn: %s\n"
1666                                 "creatorsName: %s\n"
1667                                 "modifiersName: %s\n"
1668                                 "createTimestamp: %s\n"
1669                                 "modifyTimestamp: %s\n",
1670                                 monitor_subsys[ i ]->mss_dn.bv_val,
1671                                 mi->mi_oc_monitorContainer->soc_cname.bv_val,
1672                                 mi->mi_oc_monitorContainer->soc_cname.bv_val,
1673                                 monitor_subsys[ i ]->mss_name,
1674                                 mi->mi_creatorsName.bv_val,
1675                                 mi->mi_creatorsName.bv_val,
1676                                 mi->mi_startTime.bv_val,
1677                                 mi->mi_startTime.bv_val );
1678
1679                 e = str2entry( buf );
1680
1681                 if ( e == NULL) {
1682                         Debug( LDAP_DEBUG_ANY,
1683                                 "unable to create \"%s\" entry\n",
1684                                 monitor_subsys[ i ]->mss_dn.bv_val, 0, 0 );
1685                         return( -1 );
1686                 }
1687
1688                 if ( !BER_BVISNULL( &monitor_subsys[ i ]->mss_desc[ 0 ] ) ) {
1689                         attr_merge_normalize( e, slap_schema.si_ad_description,
1690                                         monitor_subsys[ i ]->mss_desc, NULL );
1691                 }
1692
1693                 mp = monitor_entrypriv_create();
1694                 if ( mp == NULL ) {
1695                         return -1;
1696                 }
1697                 e->e_private = ( void * )mp;
1698                 mp->mp_info = monitor_subsys[ i ];
1699                 mp->mp_flags = monitor_subsys[ i ]->mss_flags;
1700
1701                 if ( monitor_cache_add( mi, e ) ) {
1702                         Debug( LDAP_DEBUG_ANY,
1703                                 "unable to add entry \"%s\" to cache\n",
1704                                 monitor_subsys[ i ]->mss_dn.bv_val, 0, 0 );
1705                         return -1;
1706                 }
1707
1708                 *ep = e;
1709                 ep = &mp->mp_next;
1710         }
1711
1712         assert( be != NULL );
1713
1714         be->be_private = mi;
1715
1716         /*
1717          * opens the monitor backend subsystems
1718          */
1719         for ( ms = monitor_subsys; ms[ 0 ] != NULL; ms++ ) {
1720                 if ( ms[ 0 ]->mss_open && ( *ms[ 0 ]->mss_open )( be, ms[ 0 ] ) )
1721                 {
1722                         return( -1 );
1723                 }
1724                 ms[ 0 ]->mss_flags |= MONITOR_F_OPENED;
1725         }
1726
1727         monitor_subsys_opened = 1;
1728
1729         if ( mi->mi_entry_limbo ) {
1730                 entry_limbo_t   *el = (entry_limbo_t *)mi->mi_entry_limbo;
1731
1732                 for ( ; el; ) {
1733                         entry_limbo_t   *tmp;
1734
1735                         switch ( el->el_type ) {
1736                         case LIMBO_ENTRY:
1737                                 monitor_back_register_entry(
1738                                                 el->el_e,
1739                                                 el->el_cb );
1740                                 break;
1741
1742                         case LIMBO_ENTRY_PARENT:
1743                                 monitor_back_register_entry_parent(
1744                                                 el->el_e,
1745                                                 el->el_cb,
1746                                                 &el->el_base,
1747                                                 el->el_scope,
1748                                                 &el->el_filter );
1749                                 break;
1750
1751
1752                         case LIMBO_ATTRS:
1753                                 monitor_back_register_entry_attrs(
1754                                                 &el->el_ndn,
1755                                                 el->el_a,
1756                                                 el->el_cb,
1757                                                 &el->el_base,
1758                                                 el->el_scope,
1759                                                 &el->el_filter );
1760                                 break;
1761
1762                         case LIMBO_CB:
1763                                 monitor_back_register_entry_callback(
1764                                                 &el->el_ndn,
1765                                                 el->el_cb,
1766                                                 &el->el_base,
1767                                                 el->el_scope,
1768                                                 &el->el_filter );
1769                                 break;
1770
1771                         default:
1772                                 assert( 0 );
1773                         }
1774
1775                         if ( el->el_e ) {
1776                                 entry_free( el->el_e );
1777                         }
1778                         if ( el->el_a ) {
1779                                 attrs_free( el->el_a );
1780                         }
1781                         if ( !BER_BVISNULL( &el->el_ndn ) ) {
1782                                 ber_memfree( el->el_ndn.bv_val );
1783                         }
1784                         if ( !BER_BVISNULL( &el->el_base ) ) {
1785                                 ber_memfree( el->el_base.bv_val );
1786                         }
1787                         if ( !BER_BVISNULL( &el->el_filter ) ) {
1788                                 ber_memfree( el->el_filter.bv_val );
1789                         }
1790
1791                         tmp = el;
1792                         el = el->el_next;
1793                         ch_free( tmp );
1794                 }
1795
1796                 mi->mi_entry_limbo = NULL;
1797         }
1798
1799         return( 0 );
1800 }
1801
1802 int
1803 monitor_back_config(
1804         BackendInfo     *bi,
1805         const char      *fname,
1806         int             lineno,
1807         int             argc,
1808         char            **argv )
1809 {
1810         /*
1811          * eventually, will hold backend specific configuration parameters
1812          */
1813         return SLAP_CONF_UNKNOWN;
1814 }
1815
1816 int
1817 monitor_back_db_config(
1818         Backend     *be,
1819         const char  *fname,
1820         int         lineno,
1821         int         argc,
1822         char        **argv )
1823 {
1824 #if 0
1825         monitor_info_t  *mi = ( monitor_info_t * )be->be_private;
1826 #endif
1827
1828         /*
1829          * eventually, will hold database specific configuration parameters
1830          */
1831         return SLAP_CONF_UNKNOWN;
1832 }
1833
1834 int
1835 monitor_back_db_destroy(
1836         BackendDB       *be )
1837 {
1838         monitor_info_t  *mi = ( monitor_info_t * )be->be_private;
1839
1840         if ( mi == NULL ) {
1841                 return -1;
1842         }
1843
1844         /*
1845          * FIXME: destroys all the data
1846          */
1847         /* NOTE: mi points to static storage; don't free it */
1848
1849         (void)monitor_cache_destroy( mi );
1850
1851         if ( monitor_subsys ) {
1852                 int     i;
1853
1854                 for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
1855                         if ( monitor_subsys[ i ]->mss_destroy ) {
1856                                 monitor_subsys[ i ]->mss_destroy( be, monitor_subsys[ i ] );
1857                         }
1858
1859                         if ( !BER_BVISNULL( &monitor_subsys[ i ]->mss_rdn ) ) {
1860                                 ch_free( monitor_subsys[ i ]->mss_rdn.bv_val );
1861                         }
1862
1863                         if ( !BER_BVISNULL( &monitor_subsys[ i ]->mss_dn ) ) {
1864                                 ch_free( monitor_subsys[ i ]->mss_dn.bv_val );
1865                         }
1866
1867                         if ( !BER_BVISNULL( &monitor_subsys[ i ]->mss_ndn ) ) {
1868                                 ch_free( monitor_subsys[ i ]->mss_ndn.bv_val );
1869                         }
1870                 }
1871
1872                 ch_free( monitor_subsys );
1873         }
1874
1875         ldap_pvt_thread_mutex_destroy( &monitor_info.mi_cache_mutex );
1876
1877         be->be_private = NULL;
1878
1879         return 0;
1880 }
1881
1882 #if SLAPD_MONITOR == SLAPD_MOD_DYNAMIC
1883
1884 /* conditionally define the init_module() function */
1885 SLAP_BACKEND_INIT_MODULE( monitor )
1886
1887 #endif /* SLAPD_MONITOR == SLAPD_MOD_DYNAMIC */
1888