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 2001-2006 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                         ldap_pvt_scope2str( scope ),
 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         op->ors_filter = str2filter_x( op, filter->bv_val );
 689         if ( op->ors_filter == NULL ) {
 690                 rc = LDAP_OTHER;
 691                 goto cleanup;
 692         }
 693         ber_dupbv_x( &op->ors_filterstr, filter, op->o_tmpmemctx );
 694         op->ors_attrs = slap_anlist_no_attrs;
 695         op->ors_attrsonly = 0;
 696         op->ors_tlimit = SLAP_NO_LIMIT;
 697         op->ors_slimit = 1;
 698         op->ors_limit = NULL;
 699         op->ors_deref = LDAP_DEREF_NEVER;
 700
 701         op->o_nocaching = 1;
 702         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
 703
 704         op->o_dn = be_monitor->be_rootdn;
 705         op->o_ndn = be_monitor->be_rootndn;
 706
 707         rc = op->o_bd->be_search( op, &rs );
 708
 709 cleanup:;
 710         if ( op->ors_filter != NULL ) {
 711                 filter_free_x( op, op->ors_filter );
 712         }
 713         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
 714                 op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
 715         }
 716         if ( !BER_BVISNULL( &op->o_req_dn ) ) {
 717                 op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 718         }
 719         if ( !BER_BVISNULL( &op->o_req_ndn ) ) {
 720                 op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 721         }
 722
 723         if ( rc != 0 ) {
 724                 return rc;
 725         }
 726
 727         switch ( rs.sr_err ) {
 728         case LDAP_SUCCESS:
 729                 if ( BER_BVISNULL( ndn ) ) {
 730                         rc = -1;
 731                 }
 732                 break;
 733
 734         case LDAP_SIZELIMIT_EXCEEDED:
 735         default:
 736                 if ( !BER_BVISNULL( ndn ) ) {
 737                         ber_memfree( ndn->bv_val );
 738                         BER_BVZERO( ndn );
 739                 }
 740                 rc = -1;
 741                 break;
 742         }
 743
 744         return rc;
 745 }
 746
 747 int
 748 monitor_back_register_entry_attrs(
 749         struct berval           *ndn_in,
 750         Attribute               *a,
 751         monitor_callback_t      *cb,
 752         struct berval           *base,
 753         int                     scope,
 754         struct berval           *filter )
 755 {
 756         monitor_info_t  *mi;
 757         struct berval   ndn = BER_BVNULL;
 758         char            *fname = ( a == NULL ? "callback" : "attrs" );
 759
 760         if ( be_monitor == NULL ) {
 761                 char            buf[ SLAP_TEXT_BUFLEN ];
 762
 763                 snprintf( buf, sizeof( buf ),
 764                         "monitor_back_register_entry_%s(base=\"%s\" scope=%s filter=\"%s\"): "
 765                         "monitor database not configured.\n",
 766                         fname,
 767                         BER_BVISNULL( base ) ? "" : base->bv_val,
 768                         ldap_pvt_scope2str( scope ),
 769                         BER_BVISNULL( filter ) ? "" : filter->bv_val );
 770                 Debug( LDAP_DEBUG_ANY, "%s\n", buf, 0, 0 );
 771
 772                 return -1;
 773         }
 774
 775         mi = ( monitor_info_t * )be_monitor->be_private;
 776
 777         assert( mi != NULL );
 778
 779         if ( ndn_in != NULL ) {
 780                 ndn = *ndn_in;
 781         }
 782
 783         if ( a == NULL && cb == NULL ) {
 784                 /* nothing to do */
 785                 return -1;
 786         }
 787
 788         if ( ( ndn_in == NULL || BER_BVISNULL( &ndn ) )
 789                         && BER_BVISNULL( filter ) )
 790         {
 791                 /* need a filter */
 792                 Debug( LDAP_DEBUG_ANY,
 793                         "monitor_back_register_entry_%s(\"\"): "
 794                         "need a valid filter\n",
 795                         fname, 0, 0 );
 796                 return -1;
 797         }
 798
 799         if ( monitor_subsys_opened ) {
 800                 Entry                   *e = NULL;
 801                 Attribute               **atp = NULL;
 802                 monitor_entry_t         *mp = NULL;
 803                 monitor_callback_t      **mcp = NULL;
 804                 int                     rc = 0;
 805                 int                     freeit = 0;
 806
 807                 if ( BER_BVISNULL( &ndn ) ) {
 808                         if ( monitor_filter2ndn( base, scope, filter, &ndn ) ) {
 809                                 char            buf[ SLAP_TEXT_BUFLEN ];
 810
 811                                 snprintf( buf, sizeof( buf ),
 812                                         "monitor_back_register_entry_%s(\"\"): "
 813                                         "base=\"%s\" scope=%d filter=\"%s\": "
 814                                         "unable to find entry\n",
 815                                         fname,
 816                                         base->bv_val ? base->bv_val : "\"\"",
 817                                         scope, filter->bv_val );
 818
 819                                 /* entry does not exist */
 820                                 Debug( LDAP_DEBUG_ANY, "%s\n", buf, 0, 0 );
 821                                 return -1;
 822                         }
 823
 824                         freeit = 1;
 825                 }
 826
 827                 if ( monitor_cache_get( mi, &ndn, &e ) != 0 ) {
 828                         /* entry does not exist */
 829                         Debug( LDAP_DEBUG_ANY,
 830                                 "monitor_back_register_entry_%s(\"%s\"): "
 831                                 "entry does not exist\n",
 832                                 fname, ndn.bv_val, 0 );
 833                         rc = -1;
 834                         goto done;
 835                 }
 836
 837                 assert( e->e_private != NULL );
 838                 mp = ( monitor_entry_t * )e->e_private;
 839
 840                 if ( mp->mp_flags & MONITOR_F_VOLATILE ) {
 841                         /* entry is volatile; cannot append callback */
 842                         Debug( LDAP_DEBUG_ANY,
 843                                 "monitor_back_register_entry_%s(\"%s\"): "
 844                                 "entry is volatile\n",
 845                                 fname, e->e_name.bv_val, 0 );
 846                         rc = -1;
 847                         goto done;
 848                 }
 849
 850                 if ( a ) {
 851                         for ( atp = &e->e_attrs; *atp; atp = &(*atp)->a_next )
 852                                 /* just get to last */ ;
 853
 854                         for ( ; a != NULL; a = a->a_next ) {
 855                                 assert( a->a_desc != NULL );
 856                                 assert( a->a_vals != NULL );
 857
 858                                 if ( attr_find( e->e_attrs, a->a_desc ) ) {
 859                                         attr_merge( e, a->a_desc, a->a_vals,
 860                                                 a->a_nvals == a->a_vals ? NULL : a->a_nvals );
 861
 862                                 } else {
 863                                         *atp = attr_dup( a );
 864                                         if ( *atp == NULL ) {
 865                                                 Debug( LDAP_DEBUG_ANY,
 866                                                         "monitor_back_register_entry_%s(\"%s\"): "
 867                                                         "attr_dup() failed\n",
 868                                                         fname, e->e_name.bv_val, 0 );
 869                                                 rc = -1;
 870                                                 goto done;
 871                                         }
 872                                         atp = &(*atp)->a_next;
 873                                 }
 874                         }
 875                 }
 876
 877                 if ( cb ) {
 878                         for ( mcp = &mp->mp_cb; *mcp; mcp = &(*mcp)->mc_next )
 879                                 /* go to tail */ ;
 880
 881                         /* NOTE: we do not clear cb->mc_next, so this function
 882                          * can be used to append a list of callbacks */
 883                         (*mcp) = cb;
 884                 }
 885
 886 done:;
 887                 if ( rc ) {
 888                         if ( atp && *atp ) {
 889                                 attrs_free( *atp );
 890                                 *atp = NULL;
 891                         }
 892                 }
 893
 894                 if ( freeit ) {
 895                         ber_memfree( ndn.bv_val );
 896                 }
 897
 898                 if ( e ) {
 899                         monitor_cache_release( mi, e );
 900                 }
 901
 902         } else {
 903                 entry_limbo_t   **elpp, el = { 0 };
 904
 905                 el.el_type = LIMBO_ATTRS;
 906                 if ( !BER_BVISNULL( &ndn ) ) {
 907                         ber_dupbv( &el.el_ndn, &ndn );
 908                 }
 909                 if ( !BER_BVISNULL( base ) ) {
 910                         ber_dupbv( &el.el_base, base);
 911                 }
 912                 el.el_scope = scope;
 913                 if ( !BER_BVISNULL( filter ) ) {
 914                         ber_dupbv( &el.el_filter, filter );
 915                 }
 916
 917                 el.el_a = attrs_dup( a );
 918                 el.el_cb = cb;
 919
 920                 for ( elpp = (entry_limbo_t **)&mi->mi_entry_limbo;
 921                                 *elpp;
 922                                 elpp = &(*elpp)->el_next )
 923                         /* go to last */;
 924
 925                 *elpp = (entry_limbo_t *)ch_malloc( sizeof( entry_limbo_t ) );
 926                 if ( *elpp == NULL ) {
 927                         el.el_e->e_private = NULL;
 928                         entry_free( el.el_e );
 929                         return -1;
 930                 }
 931
 932                 el.el_next = NULL;
 933                 **elpp = el;
 934         }
 935
 936         return 0;
 937 }
 938
 939 int
 940 monitor_back_register_entry_callback(
 941         struct berval           *ndn,
 942         monitor_callback_t      *cb,
 943         struct berval           *base,
 944         int                     scope,
 945         struct berval           *filter )
 946 {
 947         return monitor_back_register_entry_attrs( ndn, NULL, cb,
 948                         base, scope, filter );
 949 }
 950
 951 /*
 952  * TODO: add corresponding calls to remove installed callbacks, entries
 953  * and so, in case the entity that installed them is removed (e.g. a
 954  * database, via back-config)
 955  */
 956 int
 957 monitor_back_unregister_entry(
 958         Entry                   *target_e )
 959 {
 960         monitor_info_t  *mi;
 961
 962         if ( be_monitor == NULL ) {
 963                 Debug( LDAP_DEBUG_ANY,
 964                         "monitor_back_unregister_entry(\"%s\"): "
 965                         "monitor database not configured.\n",
 966                         target_e->e_name.bv_val, 0, 0 );
 967
 968                 return -1;
 969         }
 970
 971         mi = ( monitor_info_t * )be_monitor->be_private;
 972
 973         assert( mi != NULL );
 974
 975         if ( monitor_subsys_opened ) {
 976                 Entry                   *e = NULL;
 977                 monitor_entry_t         *mp = NULL;
 978                 monitor_callback_t      *cb = NULL;
 979
 980                 if ( monitor_cache_remove( mi, &target_e->e_nname, &e ) != 0 ) {
 981                         /* entry does not exist */
 982                         Debug( LDAP_DEBUG_ANY,
 983                                 "monitor_back_unregister_entry(\"%s\"): "
 984                                 "entry removal failed.\n",
 985                                 target_e->e_name.bv_val, 0, 0 );
 986                         return -1;
 987                 }
 988
 989                 mp = (monitor_entry_t *)e->e_private;
 990                 assert( mp != NULL );
 991
 992                 for ( cb = mp->mp_cb; cb != NULL; ) {
 993                         monitor_callback_t      *next = cb->mc_next;
 994
 995                         if ( cb->mc_free ) {
 996                                 (void)cb->mc_free( e, cb->mc_private );
 997                         }
 998                         ch_free( cb );
 999
1000                         cb = next;
1001                 }
1002
1003         } else {
1004                 /* TODO: remove from limbo */
1005                 return 1;
1006         }
1007
1008         return 0;
1009 }
1010
1011 int
1012 monitor_back_unregister_entry_attrs(
1013         struct berval           *ndn_in,
1014         Attribute               *target_a,
1015         monitor_callback_t      *target_cb,
1016         struct berval           *base,
1017         int                     scope,
1018         struct berval           *filter )
1019 {
1020         monitor_info_t  *mi;
1021         struct berval   ndn = BER_BVNULL;
1022         char            *fname = ( target_a == NULL ? "callback" : "attrs" );
1023
1024         if ( be_monitor == NULL ) {
1025                 char            buf[ SLAP_TEXT_BUFLEN ];
1026
1027                 snprintf( buf, sizeof( buf ),
1028                         "monitor_back_unregister_entry_%s(base=\"%s\" scope=%s filter=\"%s\"): "
1029                         "monitor database not configured.\n",
1030                         fname,
1031                         BER_BVISNULL( base ) ? "" : base->bv_val,
1032                         (char *)ldap_pvt_scope2str( scope ),
1033                         BER_BVISNULL( filter ) ? "" : filter->bv_val );
1034                 Debug( LDAP_DEBUG_ANY, "%s\n", buf, 0, 0 );
1035
1036                 return -1;
1037         }
1038
1039         mi = ( monitor_info_t * )be_monitor->be_private;
1040
1041         assert( mi != NULL );
1042
1043         if ( ndn_in != NULL ) {
1044                 ndn = *ndn_in;
1045         }
1046
1047         if ( target_a == NULL && target_cb == NULL ) {
1048                 /* nothing to do */
1049                 return -1;
1050         }
1051
1052         if ( ( ndn_in == NULL || BER_BVISNULL( &ndn ) )
1053                         && BER_BVISNULL( filter ) )
1054         {
1055                 /* need a filter */
1056                 Debug( LDAP_DEBUG_ANY,
1057                         "monitor_back_unregister_entry_%s(\"\"): "
1058                         "need a valid filter\n",
1059                         fname, 0, 0 );
1060                 return -1;
1061         }
1062
1063         if ( monitor_subsys_opened ) {
1064                 Entry                   *e = NULL;
1065                 monitor_entry_t         *mp = NULL;
1066                 int                     freeit = 0;
1067
1068                 if ( BER_BVISNULL( &ndn ) ) {
1069                         if ( monitor_filter2ndn( base, scope, filter, &ndn ) ) {
1070                                 char            buf[ SLAP_TEXT_BUFLEN ];
1071
1072                                 snprintf( buf, sizeof( buf ),
1073                                         "monitor_back_unregister_entry_%s(\"\"): "
1074                                         "base=\"%s\" scope=%d filter=\"%s\": "
1075                                         "unable to find entry\n",
1076                                         fname,
1077                                         base->bv_val ? base->bv_val : "\"\"",
1078                                         scope, filter->bv_val );
1079
1080                                 /* entry does not exist */
1081                                 Debug( LDAP_DEBUG_ANY, "%s\n", buf, 0, 0 );
1082                                 return -1;
1083                         }
1084
1085                         freeit = 1;
1086                 }
1087
1088                 if ( monitor_cache_get( mi, &ndn, &e ) != 0 ) {
1089                         /* entry does not exist */
1090                         Debug( LDAP_DEBUG_ANY,
1091                                 "monitor_back_unregister_entry(\"%s\"): "
1092                                 "entry removal failed.\n",
1093                                 ndn.bv_val, 0, 0 );
1094                         return -1;
1095                 }
1096
1097                 mp = (monitor_entry_t *)e->e_private;
1098                 assert( mp != NULL );
1099
1100                 if ( target_cb != NULL ) {
1101                         monitor_callback_t      **cbp;
1102
1103                         for ( cbp = &mp->mp_cb; *cbp != NULL; cbp = &(*cbp)->mc_next ) {
1104                                 if ( *cbp == target_cb ) {
1105                                         if ( (*cbp)->mc_free ) {
1106                                                 (void)(*cbp)->mc_free( e, (*cbp)->mc_private );
1107                                         }
1108                                         *cbp = (*cbp)->mc_next;
1109                                         ch_free( target_cb );
1110                                         break;
1111                                 }
1112                         }
1113                 }
1114
1115                 if ( target_a != NULL ) {
1116                         Attribute       *a;
1117
1118                         for ( a = target_a; a != NULL; a = a->a_next ) {
1119                                 Modification    mod = { 0 };
1120                                 const char      *text;
1121                                 char            textbuf[ SLAP_TEXT_BUFLEN ];
1122
1123                                 mod.sm_op = LDAP_MOD_DELETE;
1124                                 mod.sm_desc = a->a_desc;
1125                                 mod.sm_values = a->a_vals;
1126                                 mod.sm_nvalues = a->a_nvals;
1127
1128                                 (void)modify_delete_values( e, &mod, 1,
1129                                         &text, textbuf, sizeof( textbuf ) );
1130                         }
1131                 }
1132
1133                 if ( freeit ) {
1134                         ber_memfree( ndn.bv_val );
1135                 }
1136
1137                 if ( e ) {
1138                         monitor_cache_release( mi, e );
1139                 }
1140
1141         } else {
1142                 /* TODO: remove from limbo */
1143                 return 1;
1144         }
1145
1146         return 0;
1147 }
1148
1149 int
1150 monitor_back_unregister_entry_callback(
1151         struct berval           *ndn,
1152         monitor_callback_t      *cb,
1153         struct berval           *base,
1154         int                     scope,
1155         struct berval           *filter )
1156 {
1157         /* TODO: lookup entry (by ndn, if not NULL, and/or by callback);
1158          * unregister the callback; if a is not null, unregister the
1159          * given attrs.  In any case, call cb->cb_free */
1160         return monitor_back_unregister_entry_attrs( ndn,
1161                 NULL, cb, base, scope, filter );
1162 }
1163
1164 monitor_subsys_t *
1165 monitor_back_get_subsys( const char *name )
1166 {
1167         if ( monitor_subsys != NULL ) {
1168                 int     i;
1169
1170                 for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
1171                         if ( strcasecmp( monitor_subsys[ i ]->mss_name, name ) == 0 ) {
1172                                 return monitor_subsys[ i ];
1173                         }
1174                 }
1175         }
1176
1177         return NULL;
1178 }
1179
1180 monitor_subsys_t *
1181 monitor_back_get_subsys_by_dn(
1182         struct berval   *ndn,
1183         int             sub )
1184 {
1185         if ( monitor_subsys != NULL ) {
1186                 int     i;
1187
1188                 if ( sub ) {
1189                         for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
1190                                 if ( dnIsSuffix( ndn, &monitor_subsys[ i ]->mss_ndn ) ) {
1191                                         return monitor_subsys[ i ];
1192                                 }
1193                         }
1194
1195                 } else {
1196                         for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
1197                                 if ( dn_match( ndn, &monitor_subsys[ i ]->mss_ndn ) ) {
1198                                         return monitor_subsys[ i ];
1199                                 }
1200                         }
1201                 }
1202         }
1203
1204         return NULL;
1205 }
1206
1207 int
1208 monitor_back_initialize(
1209         BackendInfo     *bi )
1210 {
1211         static char             *controls[] = {
1212                 LDAP_CONTROL_MANAGEDSAIT,
1213                 NULL
1214         };
1215
1216         static ConfigTable monitorcfg[] = {
1217                 { NULL, NULL, 0, 0, 0, ARG_IGNORED,
1218                         NULL, NULL, NULL, NULL }
1219         };
1220
1221         static ConfigOCs monitorocs[] = {
1222                 { "( OLcfgDbOc:4.1 "
1223                         "NAME 'olcMonitorConfig' "
1224                         "DESC 'Monitor backend configuration' "
1225                         "SUP olcDatabaseConfig "
1226                         ")",
1227                                 Cft_Database, monitorcfg },
1228                 { NULL, 0, NULL }
1229         };
1230
1231         struct m_s {
1232                 char    *name;
1233                 char    *schema;
1234                 slap_mask_t flags;
1235                 int     offset;
1236         } moc[] = {
1237                 { "monitor", "( 1.3.6.1.4.1.4203.666.3.16.1 "
1238                         "NAME 'monitor' "
1239                         "DESC 'OpenLDAP system monitoring' "
1240                         "SUP top STRUCTURAL "
1241                         "MUST cn "
1242                         "MAY ( "
1243                                 "description "
1244                                 "$ seeAlso "
1245                                 "$ labeledURI "
1246                                 "$ monitoredInfo "
1247                                 "$ managedInfo "
1248                                 "$ monitorOverlay "
1249                         ") )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1250                         offsetof(monitor_info_t, mi_oc_monitor) },
1251                 { "monitorServer", "( 1.3.6.1.4.1.4203.666.3.16.2 "
1252                         "NAME 'monitorServer' "
1253                         "DESC 'Server monitoring root entry' "
1254                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1255                         offsetof(monitor_info_t, mi_oc_monitorServer) },
1256                 { "monitorContainer", "( 1.3.6.1.4.1.4203.666.3.16.3 "
1257                         "NAME 'monitorContainer' "
1258                         "DESC 'monitor container class' "
1259                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1260                         offsetof(monitor_info_t, mi_oc_monitorContainer) },
1261                 { "monitorCounterObject", "( 1.3.6.1.4.1.4203.666.3.16.4 "
1262                         "NAME 'monitorCounterObject' "
1263                         "DESC 'monitor counter class' "
1264                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1265                         offsetof(monitor_info_t, mi_oc_monitorCounterObject) },
1266                 { "monitorOperation", "( 1.3.6.1.4.1.4203.666.3.16.5 "
1267                         "NAME 'monitorOperation' "
1268                         "DESC 'monitor operation class' "
1269                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1270                         offsetof(monitor_info_t, mi_oc_monitorOperation) },
1271                 { "monitorConnection", "( 1.3.6.1.4.1.4203.666.3.16.6 "
1272                         "NAME 'monitorConnection' "
1273                         "DESC 'monitor connection class' "
1274                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1275                         offsetof(monitor_info_t, mi_oc_monitorConnection) },
1276                 { "managedObject", "( 1.3.6.1.4.1.4203.666.3.16.7 "
1277                         "NAME 'managedObject' "
1278                         "DESC 'monitor managed entity class' "
1279                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1280                         offsetof(monitor_info_t, mi_oc_managedObject) },
1281                 { "monitoredObject", "( 1.3.6.1.4.1.4203.666.3.16.8 "
1282                         "NAME 'monitoredObject' "
1283                         "DESC 'monitor monitored entity class' "
1284                         "SUP monitor STRUCTURAL )", SLAP_OC_OPERATIONAL|SLAP_OC_HIDE,
1285                         offsetof(monitor_info_t, mi_oc_monitoredObject) },
1286                 { NULL, NULL, 0, -1 }
1287         }, mat[] = {
1288                 { "monitoredInfo", "( 1.3.6.1.4.1.4203.666.1.55.1 "
1289                         "NAME 'monitoredInfo' "
1290                         "DESC 'monitored info' "
1291                         /* "SUP name " */
1292                         "EQUALITY caseIgnoreMatch "
1293                         "SUBSTR caseIgnoreSubstringsMatch "
1294                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{32768} "
1295                         "NO-USER-MODIFICATION "
1296                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1297                         offsetof(monitor_info_t, mi_ad_monitoredInfo) },
1298                 { "managedInfo", "( 1.3.6.1.4.1.4203.666.1.55.2 "
1299                         "NAME 'managedInfo' "
1300                         "DESC 'monitor managed info' "
1301                         "SUP name )", SLAP_AT_HIDE,
1302                         offsetof(monitor_info_t, mi_ad_managedInfo) },
1303                 { "monitorCounter", "( 1.3.6.1.4.1.4203.666.1.55.3 "
1304                         "NAME 'monitorCounter' "
1305                         "DESC 'monitor counter' "
1306                         "EQUALITY integerMatch "
1307                         "ORDERING integerOrderingMatch "
1308                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 "
1309                         "NO-USER-MODIFICATION "
1310                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1311                         offsetof(monitor_info_t, mi_ad_monitorCounter) },
1312                 { "monitorOpCompleted", "( 1.3.6.1.4.1.4203.666.1.55.4 "
1313                         "NAME 'monitorOpCompleted' "
1314                         "DESC 'monitor completed operations' "
1315                         "SUP monitorCounter "
1316                         "NO-USER-MODIFICATION "
1317                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1318                         offsetof(monitor_info_t, mi_ad_monitorOpCompleted) },
1319                 { "monitorOpInitiated", "( 1.3.6.1.4.1.4203.666.1.55.5 "
1320                         "NAME 'monitorOpInitiated' "
1321                         "DESC 'monitor initiated operations' "
1322                         "SUP monitorCounter "
1323                         "NO-USER-MODIFICATION "
1324                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1325                         offsetof(monitor_info_t, mi_ad_monitorOpInitiated) },
1326                 { "monitorConnectionNumber", "( 1.3.6.1.4.1.4203.666.1.55.6 "
1327                         "NAME 'monitorConnectionNumber' "
1328                         "DESC 'monitor connection number' "
1329                         "SUP monitorCounter "
1330                         "NO-USER-MODIFICATION "
1331                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1332                         offsetof(monitor_info_t, mi_ad_monitorConnectionNumber) },
1333                 { "monitorConnectionAuthzDN", "( 1.3.6.1.4.1.4203.666.1.55.7 "
1334                         "NAME 'monitorConnectionAuthzDN' "
1335                         "DESC 'monitor connection authorization DN' "
1336                         /* "SUP distinguishedName " */
1337                         "EQUALITY distinguishedNameMatch "
1338                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 "
1339                         "NO-USER-MODIFICATION "
1340                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1341                         offsetof(monitor_info_t, mi_ad_monitorConnectionAuthzDN) },
1342                 { "monitorConnectionLocalAddress", "( 1.3.6.1.4.1.4203.666.1.55.8 "
1343                         "NAME 'monitorConnectionLocalAddress' "
1344                         "DESC 'monitor connection local address' "
1345                         "SUP monitoredInfo "
1346                         "NO-USER-MODIFICATION "
1347                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1348                         offsetof(monitor_info_t, mi_ad_monitorConnectionLocalAddress) },
1349                 { "monitorConnectionPeerAddress", "( 1.3.6.1.4.1.4203.666.1.55.9 "
1350                         "NAME 'monitorConnectionPeerAddress' "
1351                         "DESC 'monitor connection peer address' "
1352                         "SUP monitoredInfo "
1353                         "NO-USER-MODIFICATION "
1354                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1355                         offsetof(monitor_info_t, mi_ad_monitorConnectionPeerAddress) },
1356                 { "monitorTimestamp", "( 1.3.6.1.4.1.4203.666.1.55.10 "
1357                         "NAME 'monitorTimestamp' "
1358                         "DESC 'monitor timestamp' "
1359                         "EQUALITY generalizedTimeMatch "
1360                         "ORDERING generalizedTimeOrderingMatch "
1361                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.24 "
1362                         "SINGLE-VALUE "
1363                         "NO-USER-MODIFICATION "
1364                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1365                         offsetof(monitor_info_t, mi_ad_monitorTimestamp) },
1366                 { "monitorOverlay", "( 1.3.6.1.4.1.4203.666.1.55.11 "
1367                         "NAME 'monitorOverlay' "
1368                         "DESC 'name of overlays defined for a given database' "
1369                         "SUP monitoredInfo "
1370                         "NO-USER-MODIFICATION "
1371                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1372                         offsetof(monitor_info_t, mi_ad_monitorOverlay) },
1373                 { "readOnly", "( 1.3.6.1.4.1.4203.666.1.55.12 "
1374                         "NAME 'readOnly' "
1375                         "DESC 'read/write status of a given database' "
1376                         "EQUALITY booleanMatch "
1377                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 "
1378                         "SINGLE-VALUE "
1379                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1380                         offsetof(monitor_info_t, mi_ad_readOnly) },
1381                 { "restrictedOperation", "( 1.3.6.1.4.1.4203.666.1.55.13 "
1382                         "NAME 'restrictedOperation' "
1383                         "DESC 'name of restricted operation for a given database' "
1384                         "SUP managedInfo )", SLAP_AT_HIDE,
1385                         offsetof(monitor_info_t, mi_ad_restrictedOperation ) },
1386                 { "monitorConnectionProtocol", "( 1.3.6.1.4.1.4203.666.1.55.14 "
1387                         "NAME 'monitorConnectionProtocol' "
1388                         "DESC 'monitor connection protocol' "
1389                         "SUP monitoredInfo "
1390                         "NO-USER-MODIFICATION "
1391                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1392                         offsetof(monitor_info_t, mi_ad_monitorConnectionProtocol) },
1393                 { "monitorConnectionOpsReceived", "( 1.3.6.1.4.1.4203.666.1.55.15 "
1394                         "NAME 'monitorConnectionOpsReceived' "
1395                         "DESC 'monitor number of operations received by the connection' "
1396                         "SUP monitorCounter "
1397                         "NO-USER-MODIFICATION "
1398                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1399                         offsetof(monitor_info_t, mi_ad_monitorConnectionOpsReceived) },
1400                 { "monitorConnectionOpsExecuting", "( 1.3.6.1.4.1.4203.666.1.55.16 "
1401                         "NAME 'monitorConnectionOpsExecuting' "
1402                         "DESC 'monitor number of operations in execution within the connection' "
1403                         "SUP monitorCounter "
1404                         "NO-USER-MODIFICATION "
1405                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1406                         offsetof(monitor_info_t, mi_ad_monitorConnectionOpsExecuting) },
1407                 { "monitorConnectionOpsPending", "( 1.3.6.1.4.1.4203.666.1.55.17 "
1408                         "NAME 'monitorConnectionOpsPending' "
1409                         "DESC 'monitor number of pending operations within the connection' "
1410                         "SUP monitorCounter "
1411                         "NO-USER-MODIFICATION "
1412                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1413                         offsetof(monitor_info_t, mi_ad_monitorConnectionOpsPending) },
1414                 { "monitorConnectionOpsCompleted", "( 1.3.6.1.4.1.4203.666.1.55.18 "
1415                         "NAME 'monitorConnectionOpsCompleted' "
1416                         "DESC 'monitor number of operations completed within the connection' "
1417                         "SUP monitorCounter "
1418                         "NO-USER-MODIFICATION "
1419                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1420                         offsetof(monitor_info_t, mi_ad_monitorConnectionOpsCompleted) },
1421                 { "monitorConnectionGet", "( 1.3.6.1.4.1.4203.666.1.55.19 "
1422                         "NAME 'monitorConnectionGet' "
1423                         "DESC 'number of times connection_get() was called so far' "
1424                         "SUP monitorCounter "
1425                         "NO-USER-MODIFICATION "
1426                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1427                         offsetof(monitor_info_t, mi_ad_monitorConnectionGet) },
1428                 { "monitorConnectionRead", "( 1.3.6.1.4.1.4203.666.1.55.20 "
1429                         "NAME 'monitorConnectionRead' "
1430                         "DESC 'number of times connection_read() was called so far' "
1431                         "SUP monitorCounter "
1432                         "NO-USER-MODIFICATION "
1433                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1434                         offsetof(monitor_info_t, mi_ad_monitorConnectionRead) },
1435                 { "monitorConnectionWrite", "( 1.3.6.1.4.1.4203.666.1.55.21 "
1436                         "NAME 'monitorConnectionWrite' "
1437                         "DESC 'number of times connection_write() was called so far' "
1438                         "SUP monitorCounter "
1439                         "NO-USER-MODIFICATION "
1440                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1441                         offsetof(monitor_info_t, mi_ad_monitorConnectionWrite) },
1442                 { "monitorConnectionMask", "( 1.3.6.1.4.1.4203.666.1.55.22 "
1443                         "NAME 'monitorConnectionMask' "
1444                         "DESC 'monitor connection mask' "
1445                         "SUP monitoredInfo "
1446                         "NO-USER-MODIFICATION "
1447                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1448                         offsetof(monitor_info_t, mi_ad_monitorConnectionMask) },
1449                 { "monitorConnectionListener", "( 1.3.6.1.4.1.4203.666.1.55.23 "
1450                         "NAME 'monitorConnectionListener' "
1451                         "DESC 'monitor connection listener' "
1452                         "SUP monitoredInfo "
1453                         "NO-USER-MODIFICATION "
1454                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1455                         offsetof(monitor_info_t, mi_ad_monitorConnectionListener) },
1456                 { "monitorConnectionPeerDomain", "( 1.3.6.1.4.1.4203.666.1.55.24 "
1457                         "NAME 'monitorConnectionPeerDomain' "
1458                         "DESC 'monitor connection peer domain' "
1459                         "SUP monitoredInfo "
1460                         "NO-USER-MODIFICATION "
1461                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1462                         offsetof(monitor_info_t, mi_ad_monitorConnectionPeerDomain) },
1463                 { "monitorConnectionStartTime", "( 1.3.6.1.4.1.4203.666.1.55.25 "
1464                         "NAME 'monitorConnectionStartTime' "
1465                         "DESC 'monitor connection start time' "
1466                         "SUP monitorTimestamp "
1467                         "SINGLE-VALUE "
1468                         "NO-USER-MODIFICATION "
1469                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1470                         offsetof(monitor_info_t, mi_ad_monitorConnectionStartTime) },
1471                 { "monitorConnectionActivityTime", "( 1.3.6.1.4.1.4203.666.1.55.26 "
1472                         "NAME 'monitorConnectionActivityTime' "
1473                         "DESC 'monitor connection activity time' "
1474                         "SUP monitorTimestamp "
1475                         "SINGLE-VALUE "
1476                         "NO-USER-MODIFICATION "
1477                         "USAGE directoryOperation )", SLAP_AT_FINAL|SLAP_AT_HIDE,
1478                         offsetof(monitor_info_t, mi_ad_monitorConnectionActivityTime) },
1479                 { "monitorIsShadow", "( 1.3.6.1.4.1.4203.666.1.55.27 "
1480                         "NAME 'monitorIsShadow' "
1481                         "DESC 'TRUE if the database is shadow' "
1482                         "EQUALITY booleanMatch "
1483                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 "
1484                         "SINGLE-VALUE "
1485                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1486                         offsetof(monitor_info_t, mi_ad_monitorIsShadow) },
1487                 { "monitorUpdateRef", "( 1.3.6.1.4.1.4203.666.1.55.28 "
1488                         "NAME 'monitorUpdateRef' "
1489                         "DESC 'update referral for shadow databases' "
1490                         "SUP monitoredInfo "
1491                         "SINGLE-VALUE "
1492                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1493                         offsetof(monitor_info_t, mi_ad_monitorUpdateRef) },
1494                 { "monitorRuntimeConfig", "( 1.3.6.1.4.1.4203.666.1.55.29 "
1495                         "NAME 'monitorRuntimeConfig' "
1496                         "DESC 'TRUE if component allows runtime configuration' "
1497                         "EQUALITY booleanMatch "
1498                         "SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 "
1499                         "SINGLE-VALUE "
1500                         "USAGE directoryOperation )", SLAP_AT_HIDE,
1501                         offsetof(monitor_info_t, mi_ad_monitorRuntimeConfig) },
1502                 { NULL, NULL, 0, -1 }
1503         };
1504
1505         static struct {
1506                 char                    *name;
1507                 char                    *oid;
1508         }               s_oid[] = {
1509                 { "olmAttributes",                      "1.3.6.1.4.1.4203.666.1.55" },
1510                 { "olmSubSystemAttributes",             "olmAttributes:0" },
1511                 { "olmGenericAttributes",               "olmSubSystemAttributes:0" },
1512                 { "olmDatabaseAttributes",              "olmSubSystemAttributes:1" },
1513
1514                 /* for example, back-bdb specific attrs
1515                  * are in "olmDatabaseAttributes:1"
1516                  *
1517                  * NOTE: developers, please record here OID assignments
1518                  * for other modules */
1519
1520                 { "olmObjectClasses",                   "1.3.6.1.4.1.4203.666.3.16" },
1521                 { "olmSubSystemObjectClasses",          "olmObjectClasses:0" },
1522                 { "olmGenericObjectClasses",            "olmSubSystemObjectClasses:0" },
1523                 { "olmDatabaseObjectClasses",           "olmSubSystemObjectClasses:1" },
1524
1525                 /* for example, back-bdb specific objectClasses
1526                  * are in "olmDatabaseObjectClasses:1"
1527                  *
1528                  * NOTE: developers, please record here OID assignments
1529                  * for other modules */
1530
1531                 { NULL }
1532         };
1533
1534         int                     i, rc;
1535         const char              *text;
1536         monitor_info_t          *mi = &monitor_info;
1537
1538         for ( i = 0; s_oid[ i ].name; i++ ) {
1539                 char    *argv[ 3 ];
1540
1541                 argv[ 0 ] = "monitor";
1542                 argv[ 1 ] = s_oid[ i ].name;
1543                 argv[ 2 ] = s_oid[ i ].oid;
1544
1545                 if ( parse_oidm( argv[ 0 ], i, 3, argv, 0, NULL ) != 0 ) {
1546                         Debug( LDAP_DEBUG_ANY,
1547                                 "monitor_back_initialize: unable to add "
1548                                 "objectIdentifier \"%s=%s\"\n",
1549                                 s_oid[ i ].name, s_oid[ i ].oid, 0 );
1550                         return 1;
1551                 }
1552         }
1553
1554         /* schema integration */
1555         for ( i = 0; mat[ i ].name; i++ ) {
1556                 LDAPAttributeType       *at;
1557                 int                     code;
1558                 const char              *err;
1559                 AttributeDescription    **ad;
1560
1561                 at = ldap_str2attributetype( mat[ i ].schema, &code,
1562                         &err, LDAP_SCHEMA_ALLOW_ALL );
1563                 if ( !at ) {
1564                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1565                                 "in AttributeType \"%s\" %s before %s\n",
1566                                 mat[ i ].name, ldap_scherr2str(code), err );
1567                         return -1;
1568                 }
1569
1570                 if ( at->at_oid == NULL ) {
1571                         ldap_attributetype_free(at);
1572                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1573                                 "null OID for attributeType \"%s\"\n",
1574                                 mat[ i ].name, 0, 0 );
1575                         return -1;
1576                 }
1577
1578                 code = at_add(at, 0, NULL, &err);
1579                 if ( code ) {
1580                         ldap_attributetype_free(at);
1581                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1582                                 "%s in attributeType \"%s\"\n",
1583                                 scherr2str(code), mat[ i ].name, 0 );
1584                         return -1;
1585                 }
1586                 ldap_memfree(at);
1587
1588                 ad = ((AttributeDescription **)&(((char *)mi)[ mat[ i ].offset ]));
1589                 ad[ 0 ] = NULL;
1590                 if ( slap_str2ad( mat[ i ].name, ad, &text ) ) {
1591                         Debug( LDAP_DEBUG_ANY,
1592                                 "monitor_back_db_init: %s\n", text, 0, 0 );
1593                         return -1;
1594                 }
1595
1596                 (*ad)->ad_type->sat_flags |= mat[ i ].flags;
1597         }
1598
1599         for ( i = 0; moc[ i ].name; i++ ) {
1600                 LDAPObjectClass         *oc;
1601                 int                     code;
1602                 const char              *err;
1603                 ObjectClass             *Oc;
1604
1605                 oc = ldap_str2objectclass(moc[ i ].schema, &code, &err,
1606                                 LDAP_SCHEMA_ALLOW_ALL );
1607                 if ( !oc ) {
1608                         Debug( LDAP_DEBUG_ANY,
1609                                 "unable to parse monitor objectclass \"%s\": "
1610                                 "%s before %s\n" , moc[ i ].name,
1611                                 ldap_scherr2str(code), err );
1612                         return -1;
1613                 }
1614
1615                 if ( oc->oc_oid == NULL ) {
1616                         ldap_objectclass_free(oc);
1617                         Debug( LDAP_DEBUG_ANY,
1618                                 "objectclass \"%s\" has no OID\n" ,
1619                                 moc[ i ].name, 0, 0 );
1620                         return -1;
1621                 }
1622
1623                 code = oc_add(oc, 0, NULL, &err);
1624                 if ( code ) {
1625                         ldap_objectclass_free(oc);
1626                         Debug( LDAP_DEBUG_ANY,
1627                                 "objectclass \"%s\": %s \"%s\"\n" ,
1628                                 moc[ i ].name, scherr2str(code), err );
1629                         return -1;
1630                 }
1631                 ldap_memfree(oc);
1632
1633                 Oc = oc_find( moc[ i ].name );
1634                 if ( Oc == NULL ) {
1635                         Debug( LDAP_DEBUG_ANY, "monitor_back_db_init: "
1636                                         "unable to find objectClass %s "
1637                                         "(just added)\n", moc[ i ].name, 0, 0 );
1638                         return -1;
1639                 }
1640
1641                 Oc->soc_flags |= moc[ i ].flags;
1642
1643                 ((ObjectClass **)&(((char *)mi)[ moc[ i ].offset ]))[ 0 ] = Oc;
1644         }
1645
1646         bi->bi_controls = controls;
1647
1648         bi->bi_init = 0;
1649         bi->bi_open = 0;
1650         bi->bi_config = monitor_back_config;
1651         bi->bi_close = 0;
1652         bi->bi_destroy = 0;
1653
1654         bi->bi_db_init = monitor_back_db_init;
1655 #if 0
1656         bi->bi_db_config = monitor_back_db_config;
1657 #endif
1658         bi->bi_db_open = monitor_back_db_open;
1659         bi->bi_db_close = 0;
1660         bi->bi_db_destroy = monitor_back_db_destroy;
1661
1662         bi->bi_op_bind = monitor_back_bind;
1663         bi->bi_op_unbind = 0;
1664         bi->bi_op_search = monitor_back_search;
1665         bi->bi_op_compare = monitor_back_compare;
1666         bi->bi_op_modify = monitor_back_modify;
1667         bi->bi_op_modrdn = 0;
1668         bi->bi_op_add = 0;
1669         bi->bi_op_delete = 0;
1670         bi->bi_op_abandon = 0;
1671
1672         bi->bi_extended = 0;
1673
1674         bi->bi_entry_release_rw = 0;
1675         bi->bi_chk_referrals = 0;
1676         bi->bi_operational = monitor_back_operational;
1677
1678         /*
1679          * hooks for slap tools
1680          */
1681         bi->bi_tool_entry_open = 0;
1682         bi->bi_tool_entry_close = 0;
1683         bi->bi_tool_entry_first = 0;
1684         bi->bi_tool_entry_next = 0;
1685         bi->bi_tool_entry_get = 0;
1686         bi->bi_tool_entry_put = 0;
1687         bi->bi_tool_entry_reindex = 0;
1688         bi->bi_tool_sync = 0;
1689         bi->bi_tool_dn2id_get = 0;
1690         bi->bi_tool_id2entry_get = 0;
1691         bi->bi_tool_entry_modify = 0;
1692
1693         bi->bi_connection_init = 0;
1694         bi->bi_connection_destroy = 0;
1695
1696         /*
1697          * configuration objectClasses (fake)
1698          */
1699         bi->bi_cf_ocs = monitorocs;
1700
1701         rc = config_register_schema( monitorcfg, monitorocs );
1702         if ( rc ) {
1703                 return rc;
1704         }
1705
1706         return 0;
1707 }
1708
1709 int
1710 monitor_back_db_init(
1711         BackendDB       *be )
1712 {
1713         int                     rc;
1714         struct berval           dn = BER_BVC( SLAPD_MONITOR_DN ),
1715                                 pdn,
1716                                 ndn;
1717         BackendDB               *be2;
1718
1719         monitor_subsys_t        *ms;
1720
1721         /*
1722          * register subsys
1723          */
1724         for ( ms = known_monitor_subsys; ms->mss_name != NULL; ms++ ) {
1725                 if ( monitor_back_register_subsys( ms ) ) {
1726                         return -1;
1727                 }
1728         }
1729
1730         /*
1731          * database monitor can be defined once only
1732          */
1733         if ( be_monitor != NULL ) {
1734                 Debug( LDAP_DEBUG_ANY,
1735                         "only one monitor database is allowed\n", 0, 0, 0 );
1736                 return( -1 );
1737         }
1738         be_monitor = be;
1739
1740         /* indicate system schema supported */
1741         SLAP_BFLAGS(be) |= SLAP_BFLAG_MONITOR;
1742
1743         rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn, NULL );
1744         if( rc != LDAP_SUCCESS ) {
1745                 Debug( LDAP_DEBUG_ANY,
1746                         "unable to normalize/pretty monitor DN \"%s\" (%d)\n",
1747                         dn.bv_val, rc, 0 );
1748                 return -1;
1749         }
1750
1751         ber_bvarray_add( &be->be_suffix, &pdn );
1752         ber_bvarray_add( &be->be_nsuffix, &ndn );
1753
1754         /* NOTE: only one monitor database is allowed,
1755          * so we use static storage */
1756         ldap_pvt_thread_mutex_init( &monitor_info.mi_cache_mutex );
1757
1758         be->be_private = &monitor_info;
1759
1760         be2 = select_backend( &ndn, 0, 0 );
1761         if ( be2 != be ) {
1762                 char    *type = be2->bd_info->bi_type;
1763
1764                 if ( overlay_is_over( be2 ) ) {
1765                         slap_overinfo   *oi = (slap_overinfo *)be2->bd_info->bi_private;
1766                         type = oi->oi_orig->bi_type;
1767                 }
1768
1769                 Debug( LDAP_DEBUG_ANY,
1770                         "\"monitor\" database serving namingContext \"%s\" "
1771                         "is hidden by \"%s\" database serving namingContext \"%s\".\n",
1772                         pdn.bv_val, type, be2->be_nsuffix[ 0 ].bv_val );
1773                 return -1;
1774         }
1775
1776         return 0;
1777 }
1778
1779 int
1780 monitor_back_db_open(
1781         BackendDB       *be )
1782 {
1783         monitor_info_t          *mi = (monitor_info_t *)be->be_private;
1784         struct monitor_subsys_t **ms;
1785         Entry                   *e, **ep, *root;
1786         monitor_entry_t         *mp;
1787         int                     i;
1788         struct berval           bv, rdn = BER_BVC(SLAPD_MONITOR_DN);
1789         struct tm               *tms;
1790 #ifdef HAVE_GMTIME_R
1791         struct tm               tm_buf;
1792 #endif
1793         static char             tmbuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
1794         struct berval   desc[] = {
1795                 BER_BVC("This subtree contains monitoring/managing objects."),
1796                 BER_BVC("This object contains information about this server."),
1797                 BER_BVC("Most of the information is held in operational"
1798                 " attributes, which must be explicitly requested."),
1799                 BER_BVNULL };
1800
1801         assert( be_monitor != NULL );
1802         if ( be != be_monitor ) {
1803                 be_monitor = be;
1804         }
1805
1806         /*
1807          * Start
1808          */
1809 #ifndef HAVE_GMTIME_R
1810         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
1811 #endif
1812 #ifdef HACK_LOCAL_TIME
1813 # ifdef HAVE_LOCALTIME_R
1814         tms = localtime_r( &starttime, &tm_buf );
1815 # else
1816         tms = localtime( &starttime );
1817 # endif /* HAVE_LOCALTIME_R */
1818         lutil_localtime( tmbuf, sizeof(tmbuf), tms, -timezone );
1819 #else /* !HACK_LOCAL_TIME */
1820 # ifdef HAVE_GMTIME_R
1821         tms = gmtime_r( &starttime, &tm_buf );
1822 # else
1823         tms = gmtime( &starttime );
1824 # endif /* HAVE_GMTIME_R */
1825         lutil_gentime( tmbuf, sizeof(tmbuf), tms );
1826 #endif /* !HACK_LOCAL_TIME */
1827 #ifndef HAVE_GMTIME_R
1828         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
1829 #endif
1830
1831         mi->mi_startTime.bv_val = tmbuf;
1832         mi->mi_startTime.bv_len = strlen( tmbuf );
1833
1834         if ( BER_BVISEMPTY( &be->be_rootdn ) ) {
1835                 BER_BVSTR( &mi->mi_creatorsName, SLAPD_ANONYMOUS );
1836                 BER_BVSTR( &mi->mi_ncreatorsName, SLAPD_ANONYMOUS );
1837         } else {
1838                 mi->mi_creatorsName = be->be_rootdn;
1839                 mi->mi_ncreatorsName = be->be_rootndn;
1840         }
1841
1842         /*
1843          * creates the "cn=Monitor" entry
1844          */
1845         e = monitor_entry_stub( NULL, NULL, &rdn, mi->mi_oc_monitorServer, mi,
1846                 NULL, NULL );
1847
1848         if ( e == NULL) {
1849                 Debug( LDAP_DEBUG_ANY,
1850                         "unable to create \"%s\" entry\n",
1851                         SLAPD_MONITOR_DN, 0, 0 );
1852                 return( -1 );
1853         }
1854
1855         attr_merge_normalize( e, slap_schema.si_ad_description, desc, NULL );
1856
1857         bv.bv_val = strchr( (char *) Versionstr, '$' );
1858         if ( bv.bv_val != NULL ) {
1859                 char    *end;
1860
1861                 bv.bv_val++;
1862                 for ( ; bv.bv_val[ 0 ] == ' '; bv.bv_val++ )
1863                         ;
1864
1865                 end = strchr( bv.bv_val, '$' );
1866                 if ( end != NULL ) {
1867                         end--;
1868
1869                         for ( ; end > bv.bv_val && end[ 0 ] == ' '; end-- )
1870                                 ;
1871
1872                         end++;
1873
1874                         bv.bv_len = end - bv.bv_val;
1875
1876                 } else {
1877                         bv.bv_len = strlen( bv.bv_val );
1878                 }
1879
1880                 if ( attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo,
1881                                         &bv, NULL ) ) {
1882                         Debug( LDAP_DEBUG_ANY,
1883                                 "unable to add monitoredInfo to \"%s\" entry\n",
1884                                 SLAPD_MONITOR_DN, 0, 0 );
1885                         return( -1 );
1886                 }
1887         }
1888
1889         mp = monitor_entrypriv_create();
1890         if ( mp == NULL ) {
1891                 return -1;
1892         }
1893         e->e_private = ( void * )mp;
1894         ep = &mp->mp_children;
1895
1896         if ( monitor_cache_add( mi, e ) ) {
1897                 Debug( LDAP_DEBUG_ANY,
1898                         "unable to add entry \"%s\" to cache\n",
1899                         SLAPD_MONITOR_DN, 0, 0 );
1900                 return -1;
1901         }
1902         root = e;
1903
1904         /*
1905          * Create all the subsystem specific entries
1906          */
1907         for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
1908                 int             len = strlen( monitor_subsys[ i ]->mss_name );
1909                 struct berval   dn;
1910                 int             rc;
1911
1912                 dn.bv_len = len + sizeof( "cn=" ) - 1;
1913                 dn.bv_val = ch_calloc( sizeof( char ), dn.bv_len + 1 );
1914                 strcpy( dn.bv_val, "cn=" );
1915                 strcat( dn.bv_val, monitor_subsys[ i ]->mss_name );
1916                 rc = dnPretty( NULL, &dn, &monitor_subsys[ i ]->mss_rdn, NULL );
1917                 free( dn.bv_val );
1918                 if ( rc != LDAP_SUCCESS ) {
1919                         Debug( LDAP_DEBUG_ANY,
1920                                 "monitor RDN \"%s\" is invalid\n",
1921                                 dn.bv_val, 0, 0 );
1922                         return( -1 );
1923                 }
1924
1925                 e = monitor_entry_stub( &root->e_name, &root->e_nname,
1926                         &monitor_subsys[ i ]->mss_rdn, mi->mi_oc_monitorContainer, mi,
1927                         NULL, NULL );
1928
1929                 if ( e == NULL) {
1930                         Debug( LDAP_DEBUG_ANY,
1931                                 "unable to create \"%s\" entry\n",
1932                                 monitor_subsys[ i ]->mss_dn.bv_val, 0, 0 );
1933                         return( -1 );
1934                 }
1935                 monitor_subsys[i]->mss_dn = e->e_name;
1936                 monitor_subsys[i]->mss_ndn = e->e_nname;
1937
1938                 if ( !BER_BVISNULL( &monitor_subsys[ i ]->mss_desc[ 0 ] ) ) {
1939                         attr_merge_normalize( e, slap_schema.si_ad_description,
1940                                         monitor_subsys[ i ]->mss_desc, NULL );
1941                 }
1942
1943                 mp = monitor_entrypriv_create();
1944                 if ( mp == NULL ) {
1945                         return -1;
1946                 }
1947                 e->e_private = ( void * )mp;
1948                 mp->mp_info = monitor_subsys[ i ];
1949                 mp->mp_flags = monitor_subsys[ i ]->mss_flags;
1950
1951                 if ( monitor_cache_add( mi, e ) ) {
1952                         Debug( LDAP_DEBUG_ANY,
1953                                 "unable to add entry \"%s\" to cache\n",
1954                                 monitor_subsys[ i ]->mss_dn.bv_val, 0, 0 );
1955                         return -1;
1956                 }
1957
1958                 *ep = e;
1959                 ep = &mp->mp_next;
1960         }
1961
1962         assert( be != NULL );
1963
1964         be->be_private = mi;
1965
1966         /*
1967          * opens the monitor backend subsystems
1968          */
1969         for ( ms = monitor_subsys; ms[ 0 ] != NULL; ms++ ) {
1970                 if ( ms[ 0 ]->mss_open && ( *ms[ 0 ]->mss_open )( be, ms[ 0 ] ) )
1971                 {
1972                         return( -1 );
1973                 }
1974                 ms[ 0 ]->mss_flags |= MONITOR_F_OPENED;
1975         }
1976
1977         monitor_subsys_opened = 1;
1978
1979         if ( mi->mi_entry_limbo ) {
1980                 entry_limbo_t   *el = (entry_limbo_t *)mi->mi_entry_limbo;
1981
1982                 for ( ; el; ) {
1983                         entry_limbo_t   *tmp;
1984
1985                         switch ( el->el_type ) {
1986                         case LIMBO_ENTRY:
1987                                 monitor_back_register_entry(
1988                                                 el->el_e,
1989                                                 el->el_cb );
1990                                 break;
1991
1992                         case LIMBO_ENTRY_PARENT:
1993                                 monitor_back_register_entry_parent(
1994                                                 el->el_e,
1995                                                 el->el_cb,
1996                                                 &el->el_base,
1997                                                 el->el_scope,
1998                                                 &el->el_filter );
1999                                 break;
2000
2001
2002                         case LIMBO_ATTRS:
2003                                 monitor_back_register_entry_attrs(
2004                                                 &el->el_ndn,
2005                                                 el->el_a,
2006                                                 el->el_cb,
2007                                                 &el->el_base,
2008                                                 el->el_scope,
2009                                                 &el->el_filter );
2010                                 break;
2011
2012                         case LIMBO_CB:
2013                                 monitor_back_register_entry_callback(
2014                                                 &el->el_ndn,
2015                                                 el->el_cb,
2016                                                 &el->el_base,
2017                                                 el->el_scope,
2018                                                 &el->el_filter );
2019                                 break;
2020
2021                         default:
2022                                 assert( 0 );
2023                         }
2024
2025                         if ( el->el_e ) {
2026                                 entry_free( el->el_e );
2027                         }
2028                         if ( el->el_a ) {
2029                                 attrs_free( el->el_a );
2030                         }
2031                         if ( !BER_BVISNULL( &el->el_ndn ) ) {
2032                                 ber_memfree( el->el_ndn.bv_val );
2033                         }
2034                         if ( !BER_BVISNULL( &el->el_base ) ) {
2035                                 ber_memfree( el->el_base.bv_val );
2036                         }
2037                         if ( !BER_BVISNULL( &el->el_filter ) ) {
2038                                 ber_memfree( el->el_filter.bv_val );
2039                         }
2040
2041                         tmp = el;
2042                         el = el->el_next;
2043                         ch_free( tmp );
2044                 }
2045
2046                 mi->mi_entry_limbo = NULL;
2047         }
2048
2049         return( 0 );
2050 }
2051
2052 int
2053 monitor_back_config(
2054         BackendInfo     *bi,
2055         const char      *fname,
2056         int             lineno,
2057         int             argc,
2058         char            **argv )
2059 {
2060         /*
2061          * eventually, will hold backend specific configuration parameters
2062          */
2063         return SLAP_CONF_UNKNOWN;
2064 }
2065
2066 #if 0
2067 int
2068 monitor_back_db_config(
2069         Backend     *be,
2070         const char  *fname,
2071         int         lineno,
2072         int         argc,
2073         char        **argv )
2074 {
2075         monitor_info_t  *mi = ( monitor_info_t * )be->be_private;
2076
2077         /*
2078          * eventually, will hold database specific configuration parameters
2079          */
2080         return SLAP_CONF_UNKNOWN;
2081 }
2082 #endif
2083
2084 int
2085 monitor_back_db_destroy(
2086         BackendDB       *be )
2087 {
2088         monitor_info_t  *mi = ( monitor_info_t * )be->be_private;
2089
2090         if ( mi == NULL ) {
2091                 return -1;
2092         }
2093
2094         /*
2095          * FIXME: destroys all the data
2096          */
2097         /* NOTE: mi points to static storage; don't free it */
2098
2099         (void)monitor_cache_destroy( mi );
2100
2101         if ( monitor_subsys ) {
2102                 int     i;
2103
2104                 for ( i = 0; monitor_subsys[ i ] != NULL; i++ ) {
2105                         if ( monitor_subsys[ i ]->mss_destroy ) {
2106                                 monitor_subsys[ i ]->mss_destroy( be, monitor_subsys[ i ] );
2107                         }
2108
2109                         if ( !BER_BVISNULL( &monitor_subsys[ i ]->mss_rdn ) ) {
2110                                 ch_free( monitor_subsys[ i ]->mss_rdn.bv_val );
2111                         }
2112                 }
2113
2114                 ch_free( monitor_subsys );
2115         }
2116
2117         ldap_pvt_thread_mutex_destroy( &monitor_info.mi_cache_mutex );
2118
2119         be->be_private = NULL;
2120
2121         return 0;
2122 }
2123
2124 #if SLAPD_MONITOR == SLAPD_MOD_DYNAMIC
2125
2126 /* conditionally define the init_module() function */
2127 SLAP_BACKEND_INIT_MODULE( monitor )
2128
2129 #endif /* SLAPD_MONITOR == SLAPD_MOD_DYNAMIC */
2130