git.sur5r.net Git - openldap/blob - servers/slapd/backend.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /* backend.c - routines for dealing with back-end databases */
   7
   8
   9 #include "portable.h"
  10
  11 #include <stdio.h>
  12
  13 #include <ac/string.h>
  14 #include <ac/socket.h>
  15 #include <sys/stat.h>
  16
  17 #include "slap.h"
  18 #include "lutil.h"
  19 #include "lber_pvt.h"
  20
  21 #ifdef LDAP_SLAPI
  22 #include "slapi.h"
  23 #endif
  24
  25 /*
  26  * If a module is configured as dynamic, its header should not
  27  * get included into slapd. While this is a general rule and does
  28  * not have much of an effect in UNIX, this rule should be adhered
  29  * to for Windows, where dynamic object code should not be implicitly
  30  * imported into slapd without appropriate __declspec(dllimport) directives.
  31  */
  32
  33 #if defined(SLAPD_BDB) && !defined(SLAPD_BDB_DYNAMIC)
  34 #include "back-bdb/external.h"
  35 #endif
  36 #if defined(SLAPD_DNSSRV) && !defined(SLAPD_DNSSRV_DYNAMIC)
  37 #include "back-dnssrv/external.h"
  38 #endif
  39 #if defined(SLAPD_LDAP) && !defined(SLAPD_LDAP_DYNAMIC)
  40 #include "back-ldap/external.h"
  41 #endif
  42 #if defined(SLAPD_LDBM) && !defined(SLAPD_LDBM_DYNAMIC)
  43 #include "back-ldbm/external.h"
  44 #endif
  45 #if defined(SLAPD_META) && !defined(SLAPD_META_DYNAMIC)
  46 #include "back-meta/external.h"
  47 #endif
  48 #if defined(SLAPD_MONITOR) && !defined(SLAPD_MONITOR_DYNAMIC)
  49 #include "back-monitor/external.h"
  50 #endif
  51 #if defined(SLAPD_NULL) && !defined(SLAPD_NULL_DYNAMIC)
  52 #include "back-null/external.h"
  53 #endif
  54 #if defined(SLAPD_PASSWD) && !defined(SLAPD_PASSWD_DYNAMIC)
  55 #include "back-passwd/external.h"
  56 #endif
  57 #if defined(SLAPD_PERL) && !defined(SLAPD_PERL_DYNAMIC)
  58 #include "back-perl/external.h"
  59 #endif
  60 #if defined(SLAPD_SHELL) && !defined(SLAPD_SHELL_DYNAMIC)
  61 #include "back-shell/external.h"
  62 #endif
  63 #if defined(SLAPD_TCL) && !defined(SLAPD_TCL_DYNAMIC)
  64 #include "back-tcl/external.h"
  65 #endif
  66 #if defined(SLAPD_SQL) && !defined(SLAPD_SQL_DYNAMIC)
  67 #include "back-sql/external.h"
  68 #endif
  69 #if defined(SLAPD_PRIVATE) && !defined(SLAPD_PRIVATE_DYNAMIC)
  70 #include "private/external.h"
  71 #endif
  72
  73 static BackendInfo binfo[] = {
  74 #if defined(SLAPD_BDB) && !defined(SLAPD_BDB_DYNAMIC)
  75         {"bdb", bdb_initialize},
  76 #endif
  77 #if defined(SLAPD_DNSSRV) && !defined(SLAPD_DNSSRV_DYNAMIC)
  78         {"dnssrv",      dnssrv_back_initialize},
  79 #endif
  80 #if defined(SLAPD_LDAP) && !defined(SLAPD_LDAP_DYNAMIC)
  81         {"ldap",        ldap_back_initialize},
  82 #endif
  83 #if defined(SLAPD_LDBM) && !defined(SLAPD_LDBM_DYNAMIC)
  84         {"ldbm",        ldbm_back_initialize},
  85 #endif
  86 #if defined(SLAPD_META) && !defined(SLAPD_META_DYNAMIC)
  87         {"meta",        meta_back_initialize},
  88 #endif
  89 #if defined(SLAPD_MONITOR) && !defined(SLAPD_MONITOR_DYNAMIC)
  90         {"monitor",     monitor_back_initialize},
  91 #endif
  92 #if defined(SLAPD_NULL) && !defined(SLAPD_NULL_DYNAMIC)
  93         {"null",        null_back_initialize},
  94 #endif
  95 #if defined(SLAPD_PASSWD) && !defined(SLAPD_PASSWD_DYNAMIC)
  96         {"passwd",      passwd_back_initialize},
  97 #endif
  98 #if defined(SLAPD_PERL) && !defined(SLAPD_PERL_DYNAMIC)
  99         {"perl",        perl_back_initialize},
 100 #endif
 101 #if defined(SLAPD_SHELL) && !defined(SLAPD_SHELL_DYNAMIC)
 102         {"shell",       shell_back_initialize},
 103 #endif
 104 #if defined(SLAPD_TCL) && !defined(SLAPD_TCL_DYNAMIC)
 105         {"tcl",         tcl_back_initialize},
 106 #endif
 107 #if defined(SLAPD_SQL) && !defined(SLAPD_SQL_DYNAMIC)
 108         {"sql",         sql_back_initialize},
 109 #endif
 110         /* for any private backend */
 111 #if defined(SLAPD_PRIVATE) && !defined(SLAPD_PRIVATE_DYNAMIC)
 112         {"private",     private_back_initialize},
 113 #endif
 114         {NULL}
 115 };
 116
 117 int                     nBackendInfo = 0;
 118 BackendInfo     *backendInfo = NULL;
 119
 120 int                     nBackendDB = 0;
 121 BackendDB       *backendDB = NULL;
 122
 123 #ifdef LDAP_SYNCREPL
 124 ldap_pvt_thread_pool_t  syncrepl_pool;
 125 int                     syncrepl_pool_max = SLAP_MAX_SYNCREPL_THREADS;
 126 #endif
 127
 128 int backend_init(void)
 129 {
 130         int rc = -1;
 131
 132 #ifdef LDAP_SYNCREPL
 133         ldap_pvt_thread_pool_init( &syncrepl_pool, syncrepl_pool_max, 0 );
 134 #endif
 135
 136         if((nBackendInfo != 0) || (backendInfo != NULL)) {
 137                 /* already initialized */
 138 #ifdef NEW_LOGGING
 139                 LDAP_LOG( BACKEND, ERR,
 140                         "backend_init:  backend already initialized\n", 0, 0, 0 );
 141 #else
 142                 Debug( LDAP_DEBUG_ANY,
 143                         "backend_init: already initialized.\n", 0, 0, 0 );
 144 #endif
 145                 return -1;
 146         }
 147
 148         for( ;
 149                 binfo[nBackendInfo].bi_type != NULL;
 150                 nBackendInfo++ )
 151         {
 152                 rc = binfo[nBackendInfo].bi_init( &binfo[nBackendInfo] );
 153
 154                 if(rc != 0) {
 155 #ifdef NEW_LOGGING
 156                         LDAP_LOG( BACKEND, INFO,
 157                                 "backend_init:  initialized for type \"%s\"\n",
 158                                 binfo[nBackendInfo].bi_type, 0, 0 );
 159 #else
 160                         Debug( LDAP_DEBUG_ANY,
 161                                 "backend_init: initialized for type \"%s\"\n",
 162                                 binfo[nBackendInfo].bi_type, 0, 0 );
 163 #endif
 164                         /* destroy those we've already inited */
 165                         for( nBackendInfo--;
 166                                 nBackendInfo >= 0 ;
 167                                 nBackendInfo-- )
 168                         {
 169                                 if ( binfo[nBackendInfo].bi_destroy ) {
 170                                         binfo[nBackendInfo].bi_destroy(
 171                                                 &binfo[nBackendInfo] );
 172                                 }
 173                         }
 174                         return rc;
 175                 }
 176         }
 177
 178         if ( nBackendInfo > 0) {
 179                 backendInfo = binfo;
 180                 return 0;
 181         }
 182
 183 #ifdef SLAPD_MODULES
 184         return 0;
 185 #else
 186
 187 #ifdef NEW_LOGGING
 188         LDAP_LOG( BACKEND, ERR, "backend_init: failed\n", 0, 0, 0 );
 189 #else
 190         Debug( LDAP_DEBUG_ANY,
 191                 "backend_init: failed\n",
 192                 0, 0, 0 );
 193 #endif
 194
 195         return rc;
 196 #endif /* SLAPD_MODULES */
 197 }
 198
 199 int backend_add(BackendInfo *aBackendInfo)
 200 {
 201    int rc = 0;
 202
 203    if ((rc = aBackendInfo->bi_init(aBackendInfo)) != 0) {
 204 #ifdef NEW_LOGGING
 205         LDAP_LOG( BACKEND, ERR,
 206                   "backend_add:  initialization for type \"%s\" failed\n",
 207                   aBackendInfo->bi_type, 0, 0 );
 208 #else
 209       Debug( LDAP_DEBUG_ANY,
 210              "backend_add: initialization for type \"%s\" failed\n",
 211              aBackendInfo->bi_type, 0, 0 );
 212 #endif
 213       return rc;
 214    }
 215
 216    /* now add the backend type to the Backend Info List */
 217    {
 218       BackendInfo *newBackendInfo = 0;
 219
 220       /* if backendInfo == binfo no deallocation of old backendInfo */
 221       if (backendInfo == binfo) {
 222          newBackendInfo = ch_calloc(nBackendInfo + 1, sizeof(BackendInfo));
 223          AC_MEMCPY(newBackendInfo, backendInfo, sizeof(BackendInfo) *
 224                 nBackendInfo);
 225       } else {
 226          newBackendInfo = ch_realloc(backendInfo, sizeof(BackendInfo) *
 227                                      (nBackendInfo + 1));
 228       }
 229       AC_MEMCPY(&newBackendInfo[nBackendInfo], aBackendInfo,
 230              sizeof(BackendInfo));
 231       backendInfo = newBackendInfo;
 232       nBackendInfo++;
 233
 234       return 0;
 235    }
 236 }
 237
 238 int backend_startup(Backend *be)
 239 {
 240         int i;
 241         int rc = 0;
 242
 243 #ifdef LDAP_SYNCREPL
 244         init_syncrepl();
 245 #endif
 246
 247         if( ! ( nBackendDB > 0 ) ) {
 248                 /* no databases */
 249 #ifdef NEW_LOGGING
 250                 LDAP_LOG( BACKEND, INFO,
 251                         "backend_startup: %d databases to startup. \n", nBackendDB, 0, 0 );
 252 #else
 253                 Debug( LDAP_DEBUG_ANY,
 254                         "backend_startup: %d databases to startup.\n",
 255                         nBackendDB, 0, 0 );
 256 #endif
 257                 return 1;
 258         }
 259
 260         if(be != NULL) {
 261                 /* startup a specific backend database */
 262 #ifdef NEW_LOGGING
 263                 LDAP_LOG( BACKEND, DETAIL1, "backend_startup:  starting \"%s\"\n",
 264                            be->be_suffix[0].bv_val, 0, 0 );
 265 #else
 266                 Debug( LDAP_DEBUG_TRACE,
 267                         "backend_startup: starting \"%s\"\n",
 268                         be->be_suffix[0].bv_val, 0, 0 );
 269 #endif
 270
 271                 if ( be->bd_info->bi_open ) {
 272                         rc = be->bd_info->bi_open( be->bd_info );
 273                         if ( rc != 0 ) {
 274 #ifdef NEW_LOGGING
 275                                 LDAP_LOG( BACKEND, CRIT, "backend_startup: bi_open failed!\n", 0, 0, 0 );
 276 #else
 277                                 Debug( LDAP_DEBUG_ANY,
 278                                         "backend_startup: bi_open failed!\n",
 279                                         0, 0, 0 );
 280 #endif
 281
 282                                 return rc;
 283                         }
 284                 }
 285
 286                 if ( be->bd_info->bi_db_open ) {
 287                         rc = be->bd_info->bi_db_open( be );
 288                         if ( rc != 0 ) {
 289 #ifdef NEW_LOGGING
 290                                 LDAP_LOG( BACKEND, CRIT,
 291                                         "backend_startup: bi_db_open failed! (%d)\n", rc, 0, 0 );
 292 #else
 293                                 Debug( LDAP_DEBUG_ANY,
 294                                         "backend_startup: bi_db_open failed! (%d)\n",
 295                                         rc, 0, 0 );
 296 #endif
 297                                 return rc;
 298                         }
 299                 }
 300
 301                 return rc;
 302         }
 303
 304         /* open each backend type */
 305         for( i = 0; i < nBackendInfo; i++ ) {
 306                 if( backendInfo[i].bi_nDB == 0) {
 307                         /* no database of this type, don't open */
 308                         continue;
 309                 }
 310
 311                 if( backendInfo[i].bi_open ) {
 312                         rc = backendInfo[i].bi_open(
 313                                 &backendInfo[i] );
 314                         if ( rc != 0 ) {
 315 #ifdef NEW_LOGGING
 316                                 LDAP_LOG( BACKEND, CRIT,
 317                                         "backend_startup: bi_open %d failed!\n", i, 0, 0 );
 318 #else
 319                                 Debug( LDAP_DEBUG_ANY,
 320                                         "backend_startup: bi_open %d failed!\n",
 321                                         i, 0, 0 );
 322 #endif
 323                                 return rc;
 324                         }
 325                 }
 326         }
 327
 328         /* open each backend database */
 329         for( i = 0; i < nBackendDB; i++ ) {
 330                 /* append global access controls */
 331                 acl_append( &backendDB[i].be_acl, global_acl );
 332
 333                 if ( backendDB[i].bd_info->bi_db_open ) {
 334                         rc = backendDB[i].bd_info->bi_db_open(
 335                                 &backendDB[i] );
 336                         if ( rc != 0 ) {
 337 #ifdef NEW_LOGGING
 338                                 LDAP_LOG( BACKEND, CRIT,
 339                                         "backend_startup: bi_db_open(%d) failed! (%d)\n", i, rc, 0 );
 340 #else
 341                                 Debug( LDAP_DEBUG_ANY,
 342                                         "backend_startup: bi_db_open(%d) failed! (%d)\n",
 343                                         i, rc, 0 );
 344 #endif
 345                                 return rc;
 346                         }
 347                 }
 348
 349 #ifdef LDAP_SYNCREPL
 350                 if ( backendDB[i].syncinfo != NULL ) {
 351                         int ret;
 352                         ret = ldap_pvt_thread_pool_submit( &syncrepl_pool,
 353                                         do_syncrepl, (void *) &backendDB[i] );
 354                         if ( ret != 0 ) {
 355 #ifdef NEW_LOGGING
 356                                 LDAP_LOG( BACKEND, CRIT,
 357                                         "syncrepl thread pool submit failed (%d)\n",
 358                                         ret, 0, 0 );
 359 #else
 360                                 Debug( LDAP_DEBUG_ANY,
 361                                         "ldap_pvt_thread_pool_submit failed (%d) \n",
 362                                         ret, 0, 0 );
 363 #endif
 364                         }
 365                 }
 366 #endif
 367         }
 368
 369         return rc;
 370 }
 371
 372 int backend_num( Backend *be )
 373 {
 374         int i;
 375
 376         if( be == NULL ) return -1;
 377
 378         for( i = 0; i < nBackendDB; i++ ) {
 379                 if( be == &backendDB[i] ) return i;
 380         }
 381         return -1;
 382 }
 383
 384 int backend_shutdown( Backend *be )
 385 {
 386         int i;
 387         int rc = 0;
 388
 389         if( be != NULL ) {
 390                 /* shutdown a specific backend database */
 391
 392                 if ( be->bd_info->bi_nDB == 0 ) {
 393                         /* no database of this type, we never opened it */
 394                         return 0;
 395                 }
 396
 397                 if ( be->bd_info->bi_db_close ) {
 398                         be->bd_info->bi_db_close( be );
 399                 }
 400
 401                 if( be->bd_info->bi_close ) {
 402                         be->bd_info->bi_close( be->bd_info );
 403                 }
 404
 405                 return 0;
 406         }
 407
 408         /* close each backend database */
 409         for( i = 0; i < nBackendDB; i++ ) {
 410                 if ( backendDB[i].bd_info->bi_db_close ) {
 411                         backendDB[i].bd_info->bi_db_close(
 412                                 &backendDB[i] );
 413                 }
 414
 415                 if(rc != 0) {
 416 #ifdef NEW_LOGGING
 417                         LDAP_LOG( BACKEND, NOTICE,
 418                                 "backend_shutdown: bi_close %s failed!\n",
 419                                 backendDB[i].be_type, 0, 0 );
 420 #else
 421                         Debug( LDAP_DEBUG_ANY,
 422                                 "backend_close: bi_close %s failed!\n",
 423                                 backendDB[i].be_type, 0, 0 );
 424 #endif
 425                 }
 426         }
 427
 428         /* close each backend type */
 429         for( i = 0; i < nBackendInfo; i++ ) {
 430                 if( backendInfo[i].bi_nDB == 0 ) {
 431                         /* no database of this type */
 432                         continue;
 433                 }
 434
 435                 if( backendInfo[i].bi_close ) {
 436                         backendInfo[i].bi_close(
 437                                 &backendInfo[i] );
 438                 }
 439         }
 440
 441         return 0;
 442 }
 443
 444 int backend_destroy(void)
 445 {
 446         int i;
 447         BackendDB *bd;
 448
 449 #ifdef LDAP_SYNCREPL
 450         ldap_pvt_thread_pool_destroy( &syncrepl_pool, 1 );
 451 #endif
 452
 453         /* destroy each backend database */
 454         for( i = 0, bd = backendDB; i < nBackendDB; i++, bd++ ) {
 455                 if ( bd->bd_info->bi_db_destroy ) {
 456                         bd->bd_info->bi_db_destroy( bd );
 457                 }
 458                 ber_bvarray_free( bd->be_suffix );
 459                 ber_bvarray_free( bd->be_nsuffix );
 460                 if ( bd->be_rootdn.bv_val ) free( bd->be_rootdn.bv_val );
 461                 if ( bd->be_rootndn.bv_val ) free( bd->be_rootndn.bv_val );
 462                 if ( bd->be_rootpw.bv_val ) free( bd->be_rootpw.bv_val );
 463                 acl_destroy( bd->be_acl, global_acl );
 464         }
 465         free( backendDB );
 466
 467         /* destroy each backend type */
 468         for( i = 0; i < nBackendInfo; i++ ) {
 469                 if( backendInfo[i].bi_destroy ) {
 470                         backendInfo[i].bi_destroy(
 471                                 &backendInfo[i] );
 472                 }
 473         }
 474
 475 #ifdef SLAPD_MODULES
 476         if (backendInfo != binfo) {
 477            free(backendInfo);
 478         }
 479 #endif /* SLAPD_MODULES */
 480
 481         nBackendInfo = 0;
 482         backendInfo = NULL;
 483
 484         return 0;
 485 }
 486
 487 BackendInfo* backend_info(const char *type)
 488 {
 489         int i;
 490
 491         /* search for the backend type */
 492         for( i = 0; i < nBackendInfo; i++ ) {
 493                 if( strcasecmp(backendInfo[i].bi_type, type) == 0 ) {
 494                         return &backendInfo[i];
 495                 }
 496         }
 497
 498         return NULL;
 499 }
 500
 501
 502 BackendDB *
 503 backend_db_init(
 504     const char  *type
 505 )
 506 {
 507         Backend *be;
 508         BackendInfo *bi = backend_info(type);
 509         int     rc = 0;
 510
 511         if( bi == NULL ) {
 512                 fprintf( stderr, "Unrecognized database type (%s)\n", type );
 513                 return NULL;
 514         }
 515
 516         backendDB = (BackendDB *) ch_realloc(
 517                         (char *) backendDB,
 518                     (nBackendDB + 1) * sizeof(Backend) );
 519
 520         memset( &backendDB[nbackends], '\0', sizeof(Backend) );
 521
 522         be = &backends[nbackends++];
 523
 524         be->bd_info = bi;
 525         be->be_def_limit = deflimit;
 526         be->be_dfltaccess = global_default_access;
 527
 528         be->be_restrictops = global_restrictops;
 529         be->be_requires = global_requires;
 530         be->be_ssf_set = global_ssf_set;
 531
 532 #ifdef LDAP_SYNCREPL
 533         be->syncinfo = NULL;
 534 #endif
 535
 536         /* assign a default depth limit for alias deref */
 537         be->be_max_deref_depth = SLAPD_DEFAULT_MAXDEREFDEPTH;
 538
 539         if(bi->bi_db_init) {
 540                 rc = bi->bi_db_init( be );
 541         }
 542
 543         if(rc != 0) {
 544                 fprintf( stderr, "database init failed (%s)\n", type );
 545                 nbackends--;
 546                 return NULL;
 547         }
 548
 549         bi->bi_nDB++;
 550         return( be );
 551 }
 552
 553 void
 554 be_db_close( void )
 555 {
 556         int     i;
 557
 558         for ( i = 0; i < nbackends; i++ ) {
 559                 if ( backends[i].bd_info->bi_db_close ) {
 560                         (*backends[i].bd_info->bi_db_close)( &backends[i] );
 561                 }
 562         }
 563 }
 564
 565 Backend *
 566 select_backend(
 567         struct berval * dn,
 568         int manageDSAit,
 569         int noSubs )
 570 {
 571         int     i, j;
 572         ber_len_t len, dnlen = dn->bv_len;
 573         Backend *be = NULL;
 574
 575         for ( i = 0; i < nbackends; i++ ) {
 576                 for ( j = 0; backends[i].be_nsuffix != NULL &&
 577                     backends[i].be_nsuffix[j].bv_val != NULL; j++ )
 578                 {
 579                         if ( ( SLAP_GLUE_SUBORDINATE( &backends[i] ) )
 580                                 && noSubs )
 581                         {
 582                                 continue;
 583                         }
 584
 585                         len = backends[i].be_nsuffix[j].bv_len;
 586
 587                         if ( len > dnlen ) {
 588                                 /* suffix is longer than DN */
 589                                 continue;
 590                         }
 591
 592                         /*
 593                          * input DN is normalized, so the separator check
 594                          * need not look at escaping
 595                          */
 596                         if ( len && len < dnlen &&
 597                                 !DN_SEPARATOR( dn->bv_val[(dnlen-len)-1] ))
 598                         {
 599                                 continue;
 600                         }
 601
 602                         if ( strcmp( backends[i].be_nsuffix[j].bv_val,
 603                                 &dn->bv_val[dnlen-len] ) == 0 )
 604                         {
 605                                 if( be == NULL ) {
 606                                         be = &backends[i];
 607
 608                                         if( manageDSAit && len == dnlen ) {
 609                                                 continue;
 610                                         }
 611                                 } else {
 612                                         be = &backends[i];
 613                                 }
 614                                 return be;
 615                         }
 616                 }
 617         }
 618
 619         return be;
 620 }
 621
 622 int
 623 be_issuffix(
 624     Backend     *be,
 625     struct berval       *bvsuffix
 626 )
 627 {
 628         int     i;
 629
 630         for ( i = 0; be->be_nsuffix != NULL && be->be_nsuffix[i].bv_val != NULL; i++ ) {
 631                 if ( bvmatch( &be->be_nsuffix[i], bvsuffix ) ) {
 632                         return( 1 );
 633                 }
 634         }
 635
 636         return( 0 );
 637 }
 638
 639 int
 640 be_isroot( Backend *be, struct berval *ndn )
 641 {
 642         if ( !ndn->bv_len ) {
 643                 return( 0 );
 644         }
 645
 646         if ( !be->be_rootndn.bv_len ) {
 647                 return( 0 );
 648         }
 649
 650         return dn_match( &be->be_rootndn, ndn );
 651 }
 652
 653 int
 654 be_isupdate( Backend *be, struct berval *ndn )
 655 {
 656         if ( !ndn->bv_len ) {
 657                 return( 0 );
 658         }
 659
 660         if ( !be->be_update_ndn.bv_len ) {
 661                 return( 0 );
 662         }
 663
 664         return dn_match( &be->be_update_ndn, ndn );
 665 }
 666
 667 struct berval *
 668 be_root_dn( Backend *be )
 669 {
 670         return &be->be_rootdn;
 671 }
 672
 673 int
 674 be_isroot_pw( Operation *op )
 675 {
 676         int result;
 677
 678         if ( ! be_isroot( op->o_bd, &op->o_req_ndn ) ) {
 679                 return 0;
 680         }
 681
 682         if( op->o_bd->be_rootpw.bv_len == 0 ) {
 683                 return 0;
 684         }
 685
 686 #if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
 687         ldap_pvt_thread_mutex_lock( &passwd_mutex );
 688 #ifdef SLAPD_SPASSWD
 689         lutil_passwd_sasl_conn = op->o_conn->c_sasl_context;
 690 #endif
 691 #endif
 692
 693         result = lutil_passwd( &op->o_bd->be_rootpw, &op->orb_cred, NULL );
 694
 695 #if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
 696 #ifdef SLAPD_SPASSWD
 697         lutil_passwd_sasl_conn = NULL;
 698 #endif
 699         ldap_pvt_thread_mutex_unlock( &passwd_mutex );
 700 #endif
 701
 702         return result == 0;
 703 }
 704
 705 int
 706 be_entry_release_rw(
 707         Operation *op,
 708         Entry *e,
 709         int rw )
 710 {
 711         if ( op->o_bd->be_release ) {
 712                 /* free and release entry from backend */
 713                 return op->o_bd->be_release( op, e, rw );
 714         } else {
 715                 /* free entry */
 716                 entry_free( e );
 717                 return 0;
 718         }
 719 }
 720
 721 int
 722 backend_unbind( Operation *op, SlapReply *rs )
 723 {
 724         int             i;
 725 #if defined( LDAP_SLAPI )
 726         Slapi_PBlock *pb = op->o_pb;
 727
 728         int     rc;
 729         slapi_x_pblock_set_operation( pb, op );
 730 #endif /* defined( LDAP_SLAPI ) */
 731
 732         for ( i = 0; i < nbackends; i++ ) {
 733 #if defined( LDAP_SLAPI )
 734                 slapi_pblock_set( pb, SLAPI_BACKEND, (void *)&backends[i] );
 735                 rc = doPluginFNs( &backends[i], SLAPI_PLUGIN_PRE_UNBIND_FN,
 736                                 (Slapi_PBlock *)pb );
 737                 if ( rc < 0 ) {
 738                         /*
 739                          * A preoperation plugin failure will abort the
 740                          * entire operation.
 741                          */
 742 #ifdef NEW_LOGGING
 743                         LDAP_LOG( OPERATION, INFO, "do_bind: Unbind preoperation plugin "
 744                                         "failed\n", 0, 0, 0);
 745 #else
 746                         Debug(LDAP_DEBUG_TRACE, "do_bind: Unbind preoperation plugin "
 747                                         "failed.\n", 0, 0, 0);
 748 #endif
 749                         return 0;
 750                 }
 751 #endif /* defined( LDAP_SLAPI ) */
 752
 753                 if ( backends[i].be_unbind ) {
 754                         op->o_bd = &backends[i];
 755                         (*backends[i].be_unbind)( op, rs );
 756                 }
 757
 758 #if defined( LDAP_SLAPI )
 759                 if ( doPluginFNs( &backends[i], SLAPI_PLUGIN_POST_UNBIND_FN,
 760                                 (Slapi_PBlock *)pb ) < 0 ) {
 761 #ifdef NEW_LOGGING
 762                         LDAP_LOG( OPERATION, INFO, "do_unbind: Unbind postoperation plugins "
 763                                         "failed\n", 0, 0, 0);
 764 #else
 765                         Debug(LDAP_DEBUG_TRACE, "do_unbind: Unbind postoperation plugins "
 766                                         "failed.\n", 0, 0, 0);
 767 #endif
 768                 }
 769 #endif /* defined( LDAP_SLAPI ) */
 770         }
 771
 772         return 0;
 773 }
 774
 775 int
 776 backend_connection_init(
 777         Connection   *conn
 778 )
 779 {
 780         int     i;
 781
 782         for ( i = 0; i < nbackends; i++ ) {
 783                 if ( backends[i].be_connection_init ) {
 784                         (*backends[i].be_connection_init)( &backends[i], conn);
 785                 }
 786         }
 787
 788         return 0;
 789 }
 790
 791 int
 792 backend_connection_destroy(
 793         Connection   *conn
 794 )
 795 {
 796         int     i;
 797
 798         for ( i = 0; i < nbackends; i++ ) {
 799                 if ( backends[i].be_connection_destroy ) {
 800                         (*backends[i].be_connection_destroy)( &backends[i], conn);
 801                 }
 802         }
 803
 804         return 0;
 805 }
 806
 807 static int
 808 backend_check_controls(
 809         Operation *op,
 810         SlapReply *rs )
 811 {
 812         LDAPControl **ctrls = op->o_ctrls;
 813         rs->sr_err = LDAP_SUCCESS;
 814
 815         if( ctrls ) {
 816                 for( ; *ctrls != NULL ; ctrls++ ) {
 817                         if( (*ctrls)->ldctl_iscritical &&
 818                                 !ldap_charray_inlist( op->o_bd->be_controls, (*ctrls)->ldctl_oid ) )
 819                         {
 820                                 rs->sr_text = "control unavailable in context";
 821                                 rs->sr_err = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
 822                                 break;
 823                         }
 824                 }
 825         }
 826
 827         return rs->sr_err;
 828 }
 829
 830 int
 831 backend_check_restrictions(
 832         Operation *op,
 833         SlapReply *rs,
 834         struct berval *opdata )
 835 {
 836         slap_mask_t restrictops;
 837         slap_mask_t requires;
 838         slap_mask_t opflag;
 839         slap_ssf_set_t *ssf;
 840         int updateop = 0;
 841         int starttls = 0;
 842         int session = 0;
 843
 844         if( op->o_bd ) {
 845                 if ( backend_check_controls( op, rs ) != LDAP_SUCCESS ) {
 846                         return rs->sr_err;
 847                 }
 848
 849                 restrictops = op->o_bd->be_restrictops;
 850                 requires = op->o_bd->be_requires;
 851                 ssf = &op->o_bd->be_ssf_set;
 852
 853         } else {
 854                 restrictops = global_restrictops;
 855                 requires = global_requires;
 856                 ssf = &global_ssf_set;
 857         }
 858
 859         switch( op->o_tag ) {
 860         case LDAP_REQ_ADD:
 861                 opflag = SLAP_RESTRICT_OP_ADD;
 862                 updateop++;
 863                 break;
 864         case LDAP_REQ_BIND:
 865                 opflag = SLAP_RESTRICT_OP_BIND;
 866                 session++;
 867                 break;
 868         case LDAP_REQ_COMPARE:
 869                 opflag = SLAP_RESTRICT_OP_COMPARE;
 870                 break;
 871         case LDAP_REQ_DELETE:
 872                 updateop++;
 873                 opflag = SLAP_RESTRICT_OP_DELETE;
 874                 break;
 875         case LDAP_REQ_EXTENDED:
 876                 opflag = SLAP_RESTRICT_OP_EXTENDED;
 877
 878                 if( !opdata ) {
 879                         /* treat unspecified as a modify */
 880                         opflag = SLAP_RESTRICT_OP_MODIFY;
 881                         updateop++;
 882                         break;
 883                 }
 884
 885                 {
 886                         if( bvmatch( opdata, &slap_EXOP_START_TLS ) ) {
 887                                 session++;
 888                                 starttls++;
 889                                 break;
 890                         }
 891                 }
 892
 893                 {
 894                         if( bvmatch( opdata, &slap_EXOP_WHOAMI ) ) {
 895                                 break;
 896                         }
 897                 }
 898
 899 #ifdef LDAP_EXOP_X_CANCEL
 900                 {
 901                         if ( bvmatch( opdata, &slap_EXOP_CANCEL ) ) {
 902                                 break;
 903                         }
 904                 }
 905 #endif
 906
 907                 /* treat everything else as a modify */
 908                 opflag = SLAP_RESTRICT_OP_MODIFY;
 909                 updateop++;
 910                 break;
 911
 912         case LDAP_REQ_MODIFY:
 913                 updateop++;
 914                 opflag = SLAP_RESTRICT_OP_MODIFY;
 915                 break;
 916         case LDAP_REQ_RENAME:
 917                 updateop++;
 918                 opflag = SLAP_RESTRICT_OP_RENAME;
 919                 break;
 920         case LDAP_REQ_SEARCH:
 921                 opflag = SLAP_RESTRICT_OP_SEARCH;
 922                 break;
 923         case LDAP_REQ_UNBIND:
 924                 session++;
 925                 opflag = 0;
 926                 break;
 927         default:
 928                 rs->sr_text = "restrict operations internal error";
 929                 rs->sr_err = LDAP_OTHER;
 930                 return rs->sr_err;
 931         }
 932
 933         if ( !starttls ) {
 934                 /* these checks don't apply to StartTLS */
 935
 936                 rs->sr_err = LDAP_CONFIDENTIALITY_REQUIRED;
 937                 if( op->o_transport_ssf < ssf->sss_transport ) {
 938                         rs->sr_text = "transport confidentiality required";
 939                         return rs->sr_err;
 940                 }
 941
 942                 if( op->o_tls_ssf < ssf->sss_tls ) {
 943                         rs->sr_text = "TLS confidentiality required";
 944                         return rs->sr_err;
 945                 }
 946
 947
 948                 if( op->o_tag == LDAP_REQ_BIND && opdata == NULL ) {
 949                         /* simple bind specific check */
 950                         if( op->o_ssf < ssf->sss_simple_bind ) {
 951                                 rs->sr_text = "confidentiality required";
 952                                 return rs->sr_err;
 953                         }
 954                 }
 955
 956                 if( op->o_tag != LDAP_REQ_BIND || opdata == NULL ) {
 957                         /* these checks don't apply to SASL bind */
 958
 959                         if( op->o_sasl_ssf < ssf->sss_sasl ) {
 960                                 rs->sr_text = "SASL confidentiality required";
 961                                 return rs->sr_err;
 962                         }
 963
 964                         if( op->o_ssf < ssf->sss_ssf ) {
 965                                 rs->sr_text = "confidentiality required";
 966                                 return rs->sr_err;
 967                         }
 968                 }
 969
 970                 if( updateop ) {
 971                         if( op->o_transport_ssf < ssf->sss_update_transport ) {
 972                                 rs->sr_text = "transport update confidentiality required";
 973                                 return rs->sr_err;
 974                         }
 975
 976                         if( op->o_tls_ssf < ssf->sss_update_tls ) {
 977                                 rs->sr_text = "TLS update confidentiality required";
 978                                 return rs->sr_err;
 979                         }
 980
 981                         if( op->o_sasl_ssf < ssf->sss_update_sasl ) {
 982                                 rs->sr_text = "SASL update confidentiality required";
 983                                 return rs->sr_err;
 984                         }
 985
 986                         if( op->o_ssf < ssf->sss_update_ssf ) {
 987                                 rs->sr_text = "update confidentiality required";
 988                                 return rs->sr_err;
 989                         }
 990
 991                         if( !( global_allows & SLAP_ALLOW_UPDATE_ANON ) &&
 992                                 op->o_ndn.bv_len == 0 )
 993                         {
 994                                 rs->sr_text = "modifications require authentication";
 995                                 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
 996                                 return rs->sr_err;
 997                         }
 998
 999 #ifdef SLAP_X_LISTENER_MOD
1000                         if ( op->o_conn->c_listener && ! ( op->o_conn->c_listener->sl_perms & ( op->o_ndn.bv_len > 0 ? S_IWUSR : S_IWOTH ) ) ) {
1001                                 /* no "w" mode means readonly */
1002                                 rs->sr_text = "modifications not allowed on this listener";
1003                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1004                                 return rs->sr_err;
1005                         }
1006 #endif /* SLAP_X_LISTENER_MOD */
1007                 }
1008         }
1009
1010         if ( !session ) {
1011                 /* these checks don't apply to Bind, StartTLS, or Unbind */
1012
1013                 if( requires & SLAP_REQUIRE_STRONG ) {
1014                         /* should check mechanism */
1015                         if( ( op->o_transport_ssf < ssf->sss_transport
1016                                 && op->o_authmech.bv_len == 0 ) || op->o_dn.bv_len == 0 )
1017                         {
1018                                 rs->sr_text = "strong authentication required";
1019                                 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1020                                 return rs->sr_err;
1021                         }
1022                 }
1023
1024                 if( requires & SLAP_REQUIRE_SASL ) {
1025                         if( op->o_authmech.bv_len == 0 || op->o_dn.bv_len == 0 ) {
1026                                 rs->sr_text = "SASL authentication required";
1027                                 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1028                                 return rs->sr_err;
1029                         }
1030                 }
1031
1032                 if( requires & SLAP_REQUIRE_AUTHC ) {
1033                         if( op->o_dn.bv_len == 0 ) {
1034                                 rs->sr_text = "authentication required";
1035                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1036                                 return rs->sr_err;
1037                         }
1038                 }
1039
1040                 if( requires & SLAP_REQUIRE_BIND ) {
1041                         int version;
1042                         ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1043                         version = op->o_conn->c_protocol;
1044                         ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1045
1046                         if( !version ) {
1047                                 /* no bind has occurred */
1048                                 rs->sr_text = "BIND required";
1049                                 rs->sr_err = LDAP_OPERATIONS_ERROR;
1050                                 return rs->sr_err;
1051                         }
1052                 }
1053
1054                 if( requires & SLAP_REQUIRE_LDAP_V3 ) {
1055                         if( op->o_protocol < LDAP_VERSION3 ) {
1056                                 /* no bind has occurred */
1057                                 rs->sr_text = "operation restricted to LDAPv3 clients";
1058                                 rs->sr_err = LDAP_OPERATIONS_ERROR;
1059                                 return rs->sr_err;
1060                         }
1061                 }
1062
1063 #ifdef SLAP_X_LISTENER_MOD
1064                 if ( !starttls && op->o_dn.bv_len == 0 ) {
1065                         if ( op->o_conn->c_listener && ! ( op->o_conn->c_listener->sl_perms & S_IXOTH ) ) {
1066                                 /* no "x" mode means bind required */
1067                                 rs->sr_text = "bind required on this listener";
1068                                 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1069                                 return rs->sr_err;
1070                         }
1071                 }
1072
1073                 if ( !starttls && !updateop ) {
1074                         if ( op->o_conn->c_listener && ! ( op->o_conn->c_listener->sl_perms & ( op->o_dn.bv_len > 0 ? S_IRUSR : S_IROTH ) ) ) {
1075                                 /* no "r" mode means no read */
1076                                 rs->sr_text = "read not allowed on this listener";
1077                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1078                                 return rs->sr_err;
1079                         }
1080                 }
1081 #endif /* SLAP_X_LISTENER_MOD */
1082
1083         }
1084
1085         if( restrictops & opflag ) {
1086                 if( restrictops == SLAP_RESTRICT_OP_READS ) {
1087                         rs->sr_text = "read operations restricted";
1088                 } else {
1089                         rs->sr_text = "operation restricted";
1090                 }
1091                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1092                 return rs->sr_err;
1093         }
1094
1095         rs->sr_err = LDAP_SUCCESS;
1096         return rs->sr_err;
1097 }
1098
1099 int backend_check_referrals( Operation *op, SlapReply *rs )
1100 {
1101         rs->sr_err = LDAP_SUCCESS;
1102
1103         if( op->o_bd->be_chk_referrals ) {
1104                 rs->sr_err = op->o_bd->be_chk_referrals( op, rs );
1105
1106                 if( rs->sr_err != LDAP_SUCCESS && rs->sr_err != LDAP_REFERRAL ) {
1107                         send_ldap_result( op, rs );
1108                 }
1109         }
1110
1111         return rs->sr_err;
1112 }
1113
1114 int
1115 be_entry_get_rw(
1116         Operation *op,
1117         struct berval *ndn,
1118         ObjectClass *oc,
1119         AttributeDescription *at,
1120         int rw,
1121         Entry **e )
1122 {
1123         Backend *be = op->o_bd;
1124         int rc;
1125
1126         *e = NULL;
1127
1128         op->o_bd = select_backend( ndn, 0, 0 );
1129
1130         if (op->o_bd == NULL) {
1131                 rc = LDAP_NO_SUCH_OBJECT;
1132         } else if ( op->o_bd->be_fetch ) {
1133                 rc = ( op->o_bd->be_fetch )( op, ndn,
1134                         oc, at, rw, e );
1135         } else {
1136                 rc = LDAP_UNWILLING_TO_PERFORM;
1137         }
1138         op->o_bd = be;
1139         return rc;
1140 }
1141
1142 int
1143 backend_group(
1144         Operation *op,
1145         Entry   *target,
1146         struct berval *gr_ndn,
1147         struct berval *op_ndn,
1148         ObjectClass *group_oc,
1149         AttributeDescription *group_at
1150 )
1151 {
1152         Entry *e;
1153         Attribute *a;
1154         int rc;
1155         GroupAssertion *g;
1156
1157         if ( op->o_abandon ) return SLAPD_ABANDON;
1158
1159         ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1160
1161         for (g = op->o_conn->c_groups; g; g=g->ga_next) {
1162                 if (g->ga_be != op->o_bd || g->ga_oc != group_oc ||
1163                         g->ga_at != group_at || g->ga_len != gr_ndn->bv_len)
1164                         continue;
1165                 if (strcmp( g->ga_ndn, gr_ndn->bv_val ) == 0)
1166                         break;
1167         }
1168
1169         ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1170
1171         if (g) {
1172                 return g->ga_res;
1173         }
1174
1175         if ( target && dn_match( &target->e_nname, gr_ndn ) ) {
1176                 e = target;
1177         } else {
1178                 rc = be_entry_get_rw(op, gr_ndn, group_oc, group_at, 0, &e );
1179         }
1180         if ( e ) {
1181                 a = attr_find( e->e_attrs, group_at );
1182                 if ( a ) {
1183                         rc = value_find_ex( group_at,
1184                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1185                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1186                                 a->a_nvals, op_ndn, op->o_tmpmemctx );
1187                 } else {
1188                         rc = LDAP_NO_SUCH_ATTRIBUTE;
1189                 }
1190                 if (e != target ) {
1191                         be_entry_release_r( op, e );
1192                 }
1193         } else {
1194                 rc = LDAP_NO_SUCH_OBJECT;
1195         }
1196
1197         if ( op->o_tag != LDAP_REQ_BIND && !op->o_do_not_cache ) {
1198                 g = ch_malloc(sizeof(GroupAssertion) + gr_ndn->bv_len);
1199                 g->ga_be = op->o_bd;
1200                 g->ga_oc = group_oc;
1201                 g->ga_at = group_at;
1202                 g->ga_res = rc;
1203                 g->ga_len = gr_ndn->bv_len;
1204                 strcpy(g->ga_ndn, gr_ndn->bv_val);
1205                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1206                 g->ga_next = op->o_conn->c_groups;
1207                 op->o_conn->c_groups = g;
1208                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1209         }
1210
1211         return rc;
1212 }
1213
1214 int
1215 backend_attribute(
1216         Operation *op,
1217         Entry   *target,
1218         struct berval   *edn,
1219         AttributeDescription *entry_at,
1220         BerVarray *vals
1221 )
1222 {
1223         Entry *e;
1224         Attribute *a;
1225         int i, j, rc = LDAP_SUCCESS;
1226         AccessControlState acl_state = ACL_STATE_INIT;
1227
1228         if ( target && dn_match( &target->e_nname, edn ) ) {
1229                 e = target;
1230         } else {
1231                 rc = be_entry_get_rw(op, edn, NULL, entry_at, 0, &e );
1232                 if ( rc != LDAP_SUCCESS ) return rc;
1233         }
1234
1235         if ( e ) {
1236                 a = attr_find( e->e_attrs, entry_at );
1237                 if ( a ) {
1238                         BerVarray v;
1239
1240                         if ( op->o_conn && access_allowed( op,
1241                                 e, entry_at, NULL, ACL_AUTH,
1242                                 &acl_state ) == 0 ) {
1243                                 rc = LDAP_INSUFFICIENT_ACCESS;
1244                                 goto freeit;
1245                         }
1246
1247                         for ( i=0; a->a_vals[i].bv_val; i++ ) ;
1248
1249                         v = op->o_tmpalloc( sizeof(struct berval) * (i+1), op->o_tmpmemctx );
1250                         for ( i=0,j=0; a->a_vals[i].bv_val; i++ ) {
1251                                 if ( op->o_conn && access_allowed( op,
1252                                         e, entry_at,
1253                                         &a->a_nvals[i],
1254                                         ACL_AUTH, &acl_state ) == 0 ) {
1255                                         continue;
1256                                 }
1257                                 ber_dupbv_x( &v[j],
1258                                         &a->a_nvals[i], op->o_tmpmemctx );
1259                                 if (v[j].bv_val ) j++;
1260                         }
1261                         if (j == 0) {
1262                                 op->o_tmpfree( v, op->o_tmpmemctx );
1263                                 *vals = NULL;
1264                                 rc = LDAP_INSUFFICIENT_ACCESS;
1265                         } else {
1266                                 v[j].bv_val = NULL;
1267                                 v[j].bv_len = 0;
1268                                 *vals = v;
1269                                 rc = LDAP_SUCCESS;
1270                         }
1271                 }
1272 freeit:         if (e != target ) {
1273                         be_entry_release_r( op, e );
1274                 }
1275         }
1276
1277         return rc;
1278 }
1279
1280 Attribute *backend_operational(
1281         Operation *op,
1282         SlapReply *rs,
1283         int opattrs     )
1284 {
1285         Attribute *a = NULL, **ap = &a;
1286
1287         /*
1288          * If operational attributes (allegedly) are required,
1289          * and the backend supports specific operational attributes,
1290          * add them to the attribute list
1291          */
1292         if ( opattrs || ( op->ors_attrs &&
1293                 ad_inlist( slap_schema.si_ad_subschemaSubentry, op->ors_attrs )) ) {
1294                 *ap = slap_operational_subschemaSubentry( op->o_bd );
1295                 ap = &(*ap)->a_next;
1296         }
1297
1298         if ( ( opattrs || op->ors_attrs ) && op->o_bd && op->o_bd->be_operational != NULL ) {
1299                 ( void )op->o_bd->be_operational( op, rs, opattrs, ap );
1300         }
1301
1302         return a;
1303 }
1304