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

   1 /* database.c - deals with database subsystem */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2001-2008 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 #include <ac/unistd.h>
  27
  28 #include "slap.h"
  29 #include "back-monitor.h"
  30
  31 #if defined(LDAP_SLAPI)
  32 #include "slapi.h"
  33 static int monitor_back_add_plugin( monitor_info_t *mi, Backend *be, Entry *e );
  34 #endif /* defined(LDAP_SLAPI) */
  35
  36 static int
  37 monitor_subsys_database_modify(
  38         Operation       *op,
  39         SlapReply       *rs,
  40         Entry           *e );
  41
  42 static struct restricted_ops_t {
  43         struct berval   op;
  44         unsigned int    tag;
  45 } restricted_ops[] = {
  46         { BER_BVC( "add" ),                     SLAP_RESTRICT_OP_ADD },
  47         { BER_BVC( "bind" ),                    SLAP_RESTRICT_OP_BIND },
  48         { BER_BVC( "compare" ),                 SLAP_RESTRICT_OP_COMPARE },
  49         { BER_BVC( "delete" ),                  SLAP_RESTRICT_OP_DELETE },
  50         { BER_BVC( "extended" ),                SLAP_RESTRICT_OP_EXTENDED },
  51         { BER_BVC( "modify" ),                  SLAP_RESTRICT_OP_MODIFY },
  52         { BER_BVC( "rename" ),                  SLAP_RESTRICT_OP_RENAME },
  53         { BER_BVC( "search" ),                  SLAP_RESTRICT_OP_SEARCH },
  54         { BER_BVNULL,                           0 }
  55 }, restricted_exops[] = {
  56         { BER_BVC( LDAP_EXOP_START_TLS ),       SLAP_RESTRICT_EXOP_START_TLS },
  57         { BER_BVC( LDAP_EXOP_MODIFY_PASSWD ),   SLAP_RESTRICT_EXOP_MODIFY_PASSWD },
  58         { BER_BVC( LDAP_EXOP_WHO_AM_I ),        SLAP_RESTRICT_EXOP_WHOAMI },
  59         { BER_BVC( LDAP_EXOP_CANCEL ),  SLAP_RESTRICT_EXOP_CANCEL },
  60         { BER_BVNULL,                           0 }
  61 };
  62
  63 static int
  64 init_readOnly( monitor_info_t *mi, Entry *e, slap_mask_t restrictops )
  65 {
  66         struct berval   *tf = ( ( restrictops & SLAP_RESTRICT_OP_MASK ) == SLAP_RESTRICT_OP_WRITES ) ?
  67                 (struct berval *)&slap_true_bv : (struct berval *)&slap_false_bv;
  68
  69         return attr_merge_one( e, mi->mi_ad_readOnly, tf, tf );
  70 }
  71
  72 static int
  73 init_restrictedOperation( monitor_info_t *mi, Entry *e, slap_mask_t restrictops )
  74 {
  75         int     i, rc;
  76
  77         for ( i = 0; restricted_ops[ i ].op.bv_val; i++ ) {
  78                 if ( restrictops & restricted_ops[ i ].tag ) {
  79                         rc = attr_merge_one( e, mi->mi_ad_restrictedOperation,
  80                                         &restricted_ops[ i ].op,
  81                                         &restricted_ops[ i ].op );
  82                         if ( rc ) {
  83                                 return rc;
  84                         }
  85                 }
  86         }
  87
  88         for ( i = 0; restricted_exops[ i ].op.bv_val; i++ ) {
  89                 if ( restrictops & restricted_exops[ i ].tag ) {
  90                         rc = attr_merge_one( e, mi->mi_ad_restrictedOperation,
  91                                         &restricted_exops[ i ].op,
  92                                         &restricted_exops[ i ].op );
  93                         if ( rc ) {
  94                                 return rc;
  95                         }
  96                 }
  97         }
  98
  99         return LDAP_SUCCESS;
 100 }
 101
 102 static int
 103 monitor_subsys_database_init_one(
 104         monitor_info_t          *mi,
 105         BackendDB               *be,
 106         monitor_subsys_t        *ms,
 107         monitor_subsys_t        *ms_backend,
 108         monitor_subsys_t        *ms_overlay,
 109         struct berval           *rdn,
 110         Entry                   *e_database,
 111         Entry                   ***epp )
 112 {
 113         char                    buf[ BACKMONITOR_BUFSIZE ];
 114         int                     j;
 115         slap_overinfo           *oi = NULL;
 116         BackendInfo             *bi, *bi2;
 117         Entry                   *e;
 118         monitor_entry_t         *mp;
 119         char                    *rdnval = strchr( rdn->bv_val, '=' ) + 1;
 120         struct berval           bv;
 121
 122         bi = be->bd_info;
 123
 124         if ( overlay_is_over( be ) ) {
 125                 oi = (slap_overinfo *)be->bd_info->bi_private;
 126                 bi = oi->oi_orig;
 127         }
 128
 129         /* Subordinates are not exposed as their own naming context */
 130         if ( SLAP_GLUE_SUBORDINATE( be ) ) {
 131                 return 0;
 132         }
 133
 134         e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, rdn,
 135                 mi->mi_oc_monitoredObject, mi, NULL, NULL );
 136
 137         if ( e == NULL ) {
 138                 Debug( LDAP_DEBUG_ANY,
 139                         "monitor_subsys_database_init: "
 140                         "unable to create entry \"%s,%s\"\n",
 141                         rdn->bv_val, ms->mss_dn.bv_val, 0 );
 142                 return( -1 );
 143         }
 144
 145         ber_str2bv( bi->bi_type, 0, 0, &bv );
 146         attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo, &bv, NULL );
 147         attr_merge_one( e, mi->mi_ad_monitorIsShadow,
 148                 SLAP_SHADOW( be ) ? (struct berval *)&slap_true_bv :
 149                         (struct berval *)&slap_false_bv, NULL );
 150
 151         if ( SLAP_MONITOR( be ) ) {
 152                 attr_merge( e, slap_schema.si_ad_monitorContext,
 153                                 be->be_suffix, be->be_nsuffix );
 154                 attr_merge( e_database, slap_schema.si_ad_monitorContext,
 155                                 be->be_suffix, be->be_nsuffix );
 156
 157         } else {
 158                 if ( be->be_suffix == NULL ) {
 159                         Debug( LDAP_DEBUG_ANY,
 160                                 "monitor_subsys_database_init: "
 161                                 "missing suffix for %s\n",
 162                                 rdnval, 0, 0 );
 163                 } else {
 164                         attr_merge( e, slap_schema.si_ad_namingContexts,
 165                                 be->be_suffix, be->be_nsuffix );
 166                         attr_merge( e_database, slap_schema.si_ad_namingContexts,
 167                                 be->be_suffix, be->be_nsuffix );
 168                 }
 169         }
 170
 171         (void)init_readOnly( mi, e, be->be_restrictops );
 172         (void)init_restrictedOperation( mi, e, be->be_restrictops );
 173
 174         if ( SLAP_SHADOW( be ) && be->be_update_refs ) {
 175                 attr_merge_normalize( e, mi->mi_ad_monitorUpdateRef,
 176                                 be->be_update_refs, NULL );
 177         }
 178
 179         if ( oi != NULL ) {
 180                 slap_overinst   *on = oi->oi_list,
 181                                 *on1 = on;
 182
 183                 for ( ; on; on = on->on_next ) {
 184                         slap_overinst           *on2;
 185
 186                         for ( on2 = on1; on2 != on; on2 = on2->on_next ) {
 187                                 if ( on2->on_bi.bi_type == on->on_bi.bi_type ) {
 188                                         break;
 189                                 }
 190                         }
 191
 192                         if ( on2 != on ) {
 193                                 break;
 194                         }
 195
 196                         ber_str2bv( on->on_bi.bi_type, 0, 0, &bv );
 197                         attr_merge_normalize_one( e, mi->mi_ad_monitorOverlay,
 198                                         &bv, NULL );
 199
 200                         /* find the overlay number, j */
 201                         for ( on2 = overlay_next( NULL ), j = 0; on2; on2 = overlay_next( on2 ), j++ ) {
 202                                 if ( on2->on_bi.bi_type == on->on_bi.bi_type ) {
 203                                         break;
 204                                 }
 205                         }
 206                         assert( on2 != NULL );
 207
 208                         snprintf( buf, sizeof( buf ),
 209                                 "cn=Overlay %d,%s",
 210                                 j, ms_overlay->mss_dn.bv_val );
 211                         ber_str2bv( buf, 0, 0, &bv );
 212                         attr_merge_normalize_one( e,
 213                                         slap_schema.si_ad_seeAlso,
 214                                         &bv, NULL );
 215                 }
 216         }
 217
 218         j = -1;
 219         LDAP_STAILQ_FOREACH( bi2, &backendInfo, bi_next ) {
 220                 j++;
 221                 if ( bi2->bi_type == bi->bi_type ) {
 222                         snprintf( buf, sizeof( buf ),
 223                                 "cn=Backend %d,%s",
 224                                 j, ms_backend->mss_dn.bv_val );
 225                         bv.bv_val = buf;
 226                         bv.bv_len = strlen( buf );
 227                         attr_merge_normalize_one( e,
 228                                         slap_schema.si_ad_seeAlso,
 229                                         &bv, NULL );
 230                         break;
 231                 }
 232         }
 233         /* we must find it! */
 234         assert( j >= 0 );
 235
 236         mp = monitor_entrypriv_create();
 237         if ( mp == NULL ) {
 238                 return -1;
 239         }
 240         e->e_private = ( void * )mp;
 241         mp->mp_info = ms;
 242         mp->mp_flags = ms->mss_flags
 243                 | MONITOR_F_SUB;
 244
 245         if ( monitor_cache_add( mi, e ) ) {
 246                 Debug( LDAP_DEBUG_ANY,
 247                         "monitor_subsys_database_init: "
 248                         "unable to add entry \"%s,%s\"\n",
 249                         rdn->bv_val, ms->mss_dn.bv_val, 0 );
 250                 return( -1 );
 251         }
 252
 253 #if defined(LDAP_SLAPI)
 254         monitor_back_add_plugin( mi, be, e );
 255 #endif /* defined(LDAP_SLAPI) */
 256
 257         if ( oi != NULL ) {
 258                 Entry           **ep_overlay = &mp->mp_children;
 259                 monitor_entry_t *mp_overlay;
 260                 slap_overinst   *on = oi->oi_list;
 261                 int             o;
 262
 263                 for ( o = 0; on; o++, on = on->on_next ) {
 264                         Entry                   *e_overlay;
 265                         slap_overinst           *on2;
 266
 267                         /* find the overlay number, j */
 268                         for ( on2 = overlay_next( NULL ), j = 0; on2; on2 = overlay_next( on2 ), j++ ) {
 269                                 if ( on2->on_bi.bi_type == on->on_bi.bi_type ) {
 270                                         break;
 271                                 }
 272                         }
 273                         assert( on2 != NULL );
 274
 275                         bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Overlay %d", o );
 276                         bv.bv_val = buf;
 277
 278                         e_overlay = monitor_entry_stub( &e->e_name, &e->e_nname, &bv,
 279                                 mi->mi_oc_monitoredObject, mi, NULL, NULL );
 280
 281                         if ( e_overlay == NULL ) {
 282                                 Debug( LDAP_DEBUG_ANY,
 283                                         "monitor_subsys_database_init: "
 284                                         "unable to create entry "
 285                                         "\"cn=Overlay %d,%s,%s\"\n",
 286                                         o, rdn->bv_val, ms->mss_dn.bv_val );
 287                                 return( -1 );
 288                         }
 289                         ber_str2bv( on->on_bi.bi_type, 0, 0, &bv );
 290                         attr_merge_normalize_one( e_overlay, mi->mi_ad_monitoredInfo, &bv, NULL );
 291
 292                         bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Overlay %d,%s",
 293                                 j, ms_overlay->mss_dn.bv_val );
 294                         bv.bv_val = buf;
 295                         attr_merge_normalize_one( e_overlay, slap_schema.si_ad_seeAlso,
 296                                 &bv, NULL );
 297
 298                         if ( SLAP_MONITOR( be ) ) {
 299                                 attr_merge( e_overlay, slap_schema.si_ad_monitorContext,
 300                                                 be->be_suffix, be->be_nsuffix );
 301
 302                         } else {
 303                                 attr_merge( e_overlay, slap_schema.si_ad_namingContexts,
 304                                                 be->be_suffix, be->be_nsuffix );
 305                         }
 306
 307                         mp_overlay = monitor_entrypriv_create();
 308                         if ( mp_overlay == NULL ) {
 309                                 return -1;
 310                         }
 311                         e_overlay->e_private = ( void * )mp_overlay;
 312                         mp_overlay->mp_info = ms;
 313                         mp_overlay->mp_flags = ms->mss_flags
 314                                 | MONITOR_F_SUB;
 315
 316                         if ( monitor_cache_add( mi, e_overlay ) ) {
 317                                 Debug( LDAP_DEBUG_ANY,
 318                                         "monitor_subsys_database_init: "
 319                                         "unable to add entry "
 320                                         "\"cn=Overlay %d,%s,%s\"\n",
 321                                         o, rdn->bv_val, ms->mss_dn.bv_val );
 322                                 return( -1 );
 323                         }
 324
 325                         *ep_overlay = e_overlay;
 326                         ep_overlay = &mp_overlay->mp_next;
 327                 }
 328         }
 329
 330         **epp = e;
 331         *epp = &mp->mp_next;
 332
 333         return 0;
 334 }
 335
 336 int
 337 monitor_back_register_database(
 338         BackendDB               *be,
 339         struct berval   *ndn )
 340 {
 341         monitor_info_t          *mi;
 342         Entry                   *e_database, **ep;
 343         int                     i, rc;
 344         monitor_entry_t         *mp;
 345         monitor_subsys_t        *ms_backend,
 346                                 *ms_database,
 347                                 *ms_overlay;
 348         struct berval           bv;
 349         char                    buf[ BACKMONITOR_BUFSIZE ];
 350
 351         assert( be_monitor != NULL );
 352
 353         if ( !monitor_subsys_is_opened() ) {
 354                 return monitor_back_register_database_limbo( be, ndn );
 355         }
 356
 357         mi = ( monitor_info_t * )be_monitor->be_private;
 358
 359         ms_backend = monitor_back_get_subsys( SLAPD_MONITOR_BACKEND_NAME );
 360         if ( ms_backend == NULL ) {
 361                 Debug( LDAP_DEBUG_ANY,
 362                         "monitor_back_register_database: "
 363                         "unable to get "
 364                         "\"" SLAPD_MONITOR_BACKEND_NAME "\" "
 365                         "subsystem\n",
 366                         0, 0, 0 );
 367                 return -1;
 368         }
 369
 370         ms_database = monitor_back_get_subsys( SLAPD_MONITOR_DATABASE_NAME );
 371         if ( ms_database == NULL ) {
 372                 Debug( LDAP_DEBUG_ANY,
 373                         "monitor_back_register_database: "
 374                         "unable to get "
 375                         "\"" SLAPD_MONITOR_DATABASE_NAME "\" "
 376                         "subsystem\n",
 377                         0, 0, 0 );
 378                 return -1;
 379         }
 380
 381         ms_overlay = monitor_back_get_subsys( SLAPD_MONITOR_OVERLAY_NAME );
 382         if ( ms_overlay == NULL ) {
 383                 Debug( LDAP_DEBUG_ANY,
 384                         "monitor_back_register_database: "
 385                         "unable to get "
 386                         "\"" SLAPD_MONITOR_OVERLAY_NAME "\" "
 387                         "subsystem\n",
 388                         0, 0, 0 );
 389                 return -1;
 390         }
 391
 392         if ( monitor_cache_get( mi, &ms_database->mss_ndn, &e_database ) ) {
 393                 Debug( LDAP_DEBUG_ANY,
 394                         "monitor_subsys_database_init: "
 395                         "unable to get entry \"%s\"\n",
 396                         ms_database->mss_ndn.bv_val, 0, 0 );
 397                 return( -1 );
 398         }
 399
 400         mp = ( monitor_entry_t * )e_database->e_private;
 401         for ( i = -1, ep = &mp->mp_children; *ep; i++ ) {
 402                 Attribute       *a;
 403
 404                 a = attr_find( (*ep)->e_attrs, slap_schema.si_ad_namingContexts );
 405                 if ( a ) {
 406                         int             j, k;
 407
 408                         for ( j = 0; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ ) {
 409                                 for ( k = 0; !BER_BVISNULL( &be->be_nsuffix[ k ] ); k++ ) {
 410                                         if ( dn_match( &a->a_nvals[ j ], &be->be_nsuffix[ k ] ) ) {
 411                                                 rc = 0;
 412                                                 goto done;
 413                                         }
 414                                 }
 415                         }
 416                 }
 417
 418                 mp = ( monitor_entry_t * )(*ep)->e_private;
 419
 420                 assert( mp != NULL );
 421                 ep = &mp->mp_next;
 422         }
 423
 424         bv.bv_val = buf;
 425         bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Database %d", i );
 426         if ( bv.bv_len >= sizeof( buf ) ) {
 427                 rc = -1;
 428                 goto done;
 429         }
 430
 431         rc = monitor_subsys_database_init_one( mi, be,
 432                 ms_database, ms_backend, ms_overlay, &bv, e_database, &ep );
 433         if ( rc != 0 ) {
 434                 goto done;
 435         }
 436         /* database_init_one advanced ep past where we want.
 437          * But it stored the entry we want in mp->mp_next.
 438          */
 439         ep = &mp->mp_next;
 440
 441 done:;
 442         monitor_cache_release( mi, e_database );
 443         if ( rc == 0 && ndn && ep && *ep ) {
 444                 *ndn = (*ep)->e_nname;
 445         }
 446
 447         return rc;
 448 }
 449
 450 int
 451 monitor_subsys_database_init(
 452         BackendDB               *be,
 453         monitor_subsys_t        *ms )
 454 {
 455         monitor_info_t          *mi;
 456         Entry                   *e_database, **ep;
 457         int                     i, rc;
 458         monitor_entry_t         *mp;
 459         monitor_subsys_t        *ms_backend,
 460                                 *ms_overlay;
 461         struct berval           bv;
 462
 463         assert( be != NULL );
 464
 465         ms->mss_modify = monitor_subsys_database_modify;
 466
 467         mi = ( monitor_info_t * )be->be_private;
 468
 469         ms_backend = monitor_back_get_subsys( SLAPD_MONITOR_BACKEND_NAME );
 470         if ( ms_backend == NULL ) {
 471                 Debug( LDAP_DEBUG_ANY,
 472                         "monitor_subsys_database_init: "
 473                         "unable to get "
 474                         "\"" SLAPD_MONITOR_BACKEND_NAME "\" "
 475                         "subsystem\n",
 476                         0, 0, 0 );
 477                 return -1;
 478         }
 479
 480         ms_overlay = monitor_back_get_subsys( SLAPD_MONITOR_OVERLAY_NAME );
 481         if ( ms_overlay == NULL ) {
 482                 Debug( LDAP_DEBUG_ANY,
 483                         "monitor_subsys_database_init: "
 484                         "unable to get "
 485                         "\"" SLAPD_MONITOR_OVERLAY_NAME "\" "
 486                         "subsystem\n",
 487                         0, 0, 0 );
 488                 return -1;
 489         }
 490
 491         if ( monitor_cache_get( mi, &ms->mss_ndn, &e_database ) ) {
 492                 Debug( LDAP_DEBUG_ANY,
 493                         "monitor_subsys_database_init: "
 494                         "unable to get entry \"%s\"\n",
 495                         ms->mss_ndn.bv_val, 0, 0 );
 496                 return( -1 );
 497         }
 498
 499         (void)init_readOnly( mi, e_database, frontendDB->be_restrictops );
 500         (void)init_restrictedOperation( mi, e_database, frontendDB->be_restrictops );
 501
 502         mp = ( monitor_entry_t * )e_database->e_private;
 503         mp->mp_children = NULL;
 504         ep = &mp->mp_children;
 505
 506         BER_BVSTR( &bv, "cn=Frontend" );
 507         rc = monitor_subsys_database_init_one( mi, frontendDB,
 508                 ms, ms_backend, ms_overlay, &bv, e_database, &ep );
 509         if ( rc != 0 ) {
 510                 return rc;
 511         }
 512
 513         i = -1;
 514         LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
 515                 char            buf[ BACKMONITOR_BUFSIZE ];
 516
 517                 bv.bv_val = buf;
 518                 bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Database %d", ++i );
 519                 if ( bv.bv_len >= sizeof( buf ) ) {
 520                         return -1;
 521                 }
 522
 523                 rc = monitor_subsys_database_init_one( mi, be,
 524                         ms, ms_backend, ms_overlay, &bv, e_database, &ep );
 525                 if ( rc != 0 ) {
 526                         return rc;
 527                 }
 528         }
 529
 530         monitor_cache_release( mi, e_database );
 531
 532         return( 0 );
 533 }
 534
 535 /*
 536  * v: array of values
 537  * cur: must not contain the tags corresponding to the values in v
 538  * delta: will contain the tags corresponding to the values in v
 539  */
 540 static int
 541 value_mask( BerVarray v, slap_mask_t cur, slap_mask_t *delta )
 542 {
 543         for ( ; !BER_BVISNULL( v ); v++ ) {
 544                 struct restricted_ops_t         *rops;
 545                 int                             i;
 546
 547                 if ( OID_LEADCHAR( v->bv_val[ 0 ] ) ) {
 548                         rops = restricted_exops;
 549
 550                 } else {
 551                         rops = restricted_ops;
 552                 }
 553
 554                 for ( i = 0; !BER_BVISNULL( &rops[ i ].op ); i++ ) {
 555                         if ( ber_bvstrcasecmp( v, &rops[ i ].op ) != 0 ) {
 556                                 continue;
 557                         }
 558
 559                         if ( rops[ i ].tag & *delta ) {
 560                                 return LDAP_OTHER;
 561                         }
 562
 563                         if ( rops[ i ].tag & cur ) {
 564                                 return LDAP_OTHER;
 565                         }
 566
 567                         cur |= rops[ i ].tag;
 568                         *delta |= rops[ i ].tag;
 569
 570                         break;
 571                 }
 572
 573                 if ( BER_BVISNULL( &rops[ i ].op ) ) {
 574                         return LDAP_INVALID_SYNTAX;
 575                 }
 576         }
 577
 578         return LDAP_SUCCESS;
 579 }
 580
 581 static int
 582 monitor_subsys_database_modify(
 583         Operation       *op,
 584         SlapReply       *rs,
 585         Entry           *e )
 586 {
 587         monitor_info_t  *mi = (monitor_info_t *)op->o_bd->be_private;
 588         int             rc = LDAP_OTHER;
 589         Attribute       *save_attrs, *a;
 590         Modifications   *ml;
 591         Backend         *be;
 592         int             ro_gotval = 1, i, n;
 593         slap_mask_t     rp_add = 0, rp_delete = 0, rp_cur;
 594         struct berval   *tf;
 595
 596         i = sscanf( e->e_nname.bv_val, "cn=database %d,", &n );
 597         if ( i != 1 ) {
 598                 return SLAP_CB_CONTINUE;
 599         }
 600
 601         if ( n < 0 || n >= nBackendDB ) {
 602                 rs->sr_text = "invalid database index";
 603                 return ( rs->sr_err = LDAP_NO_SUCH_OBJECT );
 604         }
 605
 606         LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
 607                 if ( n == 0 ) {
 608                         break;
 609                 }
 610                 n--;
 611         }
 612         /* do not allow some changes on back-monitor (needs work)... */
 613         if ( SLAP_MONITOR( be ) ) {
 614                 rs->sr_text = "no modifications allowed to monitor database entry";
 615                 return ( rs->sr_err = LDAP_UNWILLING_TO_PERFORM );
 616         }
 617
 618         rp_cur = be->be_restrictops;
 619
 620         save_attrs = e->e_attrs;
 621         e->e_attrs = attrs_dup( e->e_attrs );
 622
 623         for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 624                 Modification *mod = &ml->sml_mod;
 625
 626                 if ( mod->sm_desc == mi->mi_ad_readOnly ) {
 627                         int     val = -1;
 628
 629                         if ( mod->sm_values ) {
 630                                 if ( !BER_BVISNULL( &mod->sm_values[ 1 ] ) ) {
 631                                         rs->sr_text = "attempting to modify multiple values of single-valued attribute";
 632                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 633                                         goto done;
 634                                 }
 635
 636                                 if ( bvmatch( &slap_true_bv, mod->sm_values )) {
 637                                         val = 1;
 638
 639                                 } else if ( bvmatch( &slap_false_bv, mod->sm_values )) {
 640                                         val = 0;
 641
 642                                 } else {
 643                                         assert( 0 );
 644                                         rc = rs->sr_err = LDAP_INVALID_SYNTAX;
 645                                         goto done;
 646                                 }
 647                         }
 648
 649                         switch ( mod->sm_op ) {
 650                         case LDAP_MOD_DELETE:
 651                                 if ( ro_gotval < 1 ) {
 652                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 653                                         goto done;
 654                                 }
 655                                 ro_gotval--;
 656
 657                                 if ( val == 0 && ( rp_cur & SLAP_RESTRICT_OP_WRITES ) == SLAP_RESTRICT_OP_WRITES ) {
 658                                         rc = rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
 659                                         goto done;
 660                                 }
 661
 662                                 if ( val == 1 && ( rp_cur & SLAP_RESTRICT_OP_WRITES ) != SLAP_RESTRICT_OP_WRITES ) {
 663                                         rc = rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
 664                                         goto done;
 665                                 }
 666
 667                                 break;
 668
 669                         case LDAP_MOD_REPLACE:
 670                                 ro_gotval = 0;
 671                                 /* fall thru */
 672
 673                         case LDAP_MOD_ADD:
 674                                 if ( ro_gotval > 0 ) {
 675                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 676                                         goto done;
 677                                 }
 678                                 ro_gotval++;
 679
 680                                 if ( val == 1 ) {
 681                                         rp_add |= (~rp_cur) & SLAP_RESTRICT_OP_WRITES;
 682                                         rp_cur |= SLAP_RESTRICT_OP_WRITES;
 683                                         rp_delete &= ~SLAP_RESTRICT_OP_WRITES;
 684
 685                                 } else if ( val == 0 ) {
 686                                         rp_delete |= rp_cur & SLAP_RESTRICT_OP_WRITES;
 687                                         rp_cur &= ~SLAP_RESTRICT_OP_WRITES;
 688                                         rp_add &= ~SLAP_RESTRICT_OP_WRITES;
 689                                 }
 690                                 break;
 691
 692                         default:
 693                                 rc = rs->sr_err = LDAP_OTHER;
 694                                 goto done;
 695                         }
 696
 697                 } else if ( mod->sm_desc == mi->mi_ad_restrictedOperation ) {
 698                         slap_mask_t     mask = 0;
 699
 700                         switch ( mod->sm_op ) {
 701                         case LDAP_MOD_DELETE:
 702                                 if ( mod->sm_values == NULL ) {
 703                                         rp_delete = rp_cur;
 704                                         rp_cur = 0;
 705                                         rp_add = 0;
 706                                         break;
 707                                 }
 708                                 rc = value_mask( mod->sm_values, ~rp_cur, &mask );
 709                                 if ( rc == LDAP_SUCCESS ) {
 710                                         rp_delete |= mask;
 711                                         rp_add &= ~mask;
 712                                         rp_cur &= ~mask;
 713
 714                                 } else if ( rc == LDAP_OTHER ) {
 715                                         rc = LDAP_NO_SUCH_ATTRIBUTE;
 716                                 }
 717                                 break;
 718
 719                         case LDAP_MOD_REPLACE:
 720                                 rp_delete = rp_cur;
 721                                 rp_cur = 0;
 722                                 rp_add = 0;
 723                                 /* fall thru */
 724
 725                         case LDAP_MOD_ADD:
 726                                 rc = value_mask( mod->sm_values, rp_cur, &mask );
 727                                 if ( rc == LDAP_SUCCESS ) {
 728                                         rp_add |= mask;
 729                                         rp_cur |= mask;
 730                                         rp_delete &= ~mask;
 731
 732                                 } else if ( rc == LDAP_OTHER ) {
 733                                         rc = rs->sr_err = LDAP_TYPE_OR_VALUE_EXISTS;
 734                                 }
 735                                 break;
 736
 737                         default:
 738                                 rc = rs->sr_err = LDAP_OTHER;
 739                                 break;
 740                         }
 741
 742                         if ( rc != LDAP_SUCCESS ) {
 743                                 goto done;
 744                         }
 745
 746                 } else if ( is_at_operational( mod->sm_desc->ad_type )) {
 747                 /* accept all operational attributes */
 748                         attr_delete( &e->e_attrs, mod->sm_desc );
 749                         rc = attr_merge( e, mod->sm_desc, mod->sm_values,
 750                                 mod->sm_nvalues );
 751                         if ( rc ) {
 752                                 rc = rs->sr_err = LDAP_OTHER;
 753                                 break;
 754                         }
 755
 756                 } else {
 757                         rc = rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 758                         break;
 759                 }
 760         }
 761
 762         /* sanity checks: */
 763         if ( ro_gotval < 1 ) {
 764                 rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 765                 goto done;
 766         }
 767
 768         if ( ( rp_cur & SLAP_RESTRICT_OP_EXTENDED ) && ( rp_cur & SLAP_RESTRICT_EXOP_MASK ) ) {
 769                 rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 770                 goto done;
 771         }
 772
 773         if ( rp_delete & rp_add ) {
 774                 rc = rs->sr_err = LDAP_OTHER;
 775                 goto done;
 776         }
 777
 778         /* check current value of readOnly */
 779         if ( ( rp_cur & SLAP_RESTRICT_OP_WRITES ) == SLAP_RESTRICT_OP_WRITES ) {
 780                 tf = (struct berval *)&slap_true_bv;
 781
 782         } else {
 783                 tf = (struct berval *)&slap_false_bv;
 784         }
 785
 786         a = attr_find( e->e_attrs, mi->mi_ad_readOnly );
 787         if ( a == NULL ) {
 788                 rc = LDAP_OTHER;
 789                 goto done;
 790         }
 791
 792         if ( !bvmatch( &a->a_vals[ 0 ], tf ) ) {
 793                 attr_delete( &e->e_attrs, mi->mi_ad_readOnly );
 794                 rc = attr_merge_one( e, mi->mi_ad_readOnly, tf, tf );
 795         }
 796
 797         if ( rc == LDAP_SUCCESS ) {
 798                 if ( rp_delete ) {
 799                         if ( rp_delete == be->be_restrictops ) {
 800                                 attr_delete( &e->e_attrs, mi->mi_ad_restrictedOperation );
 801
 802                         } else {
 803                                 a = attr_find( e->e_attrs, mi->mi_ad_restrictedOperation );
 804                                 if ( a == NULL ) {
 805                                         rc = rs->sr_err = LDAP_OTHER;
 806                                         goto done;
 807                                 }
 808
 809                                 for ( i = 0; !BER_BVISNULL( &restricted_ops[ i ].op ); i++ ) {
 810                                         if ( rp_delete & restricted_ops[ i ].tag ) {
 811                                                 int     j;
 812
 813                                                 for ( j = 0; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ ) {
 814                                                         int             k;
 815
 816                                                         if ( !bvmatch( &a->a_nvals[ j ], &restricted_ops[ i ].op ) ) {
 817                                                                 continue;
 818                                                         }
 819
 820                                                         ch_free( a->a_vals[ j ].bv_val );
 821                                                         ch_free( a->a_nvals[ j ].bv_val );
 822
 823                                                         for ( k = j + 1; !BER_BVISNULL( &a->a_nvals[ k ] ); k++ ) {
 824                                                                 a->a_vals[ k - 1 ] = a->a_vals[ k ];
 825                                                                 a->a_nvals[ k - 1 ] = a->a_nvals[ k ];
 826                                                         }
 827
 828                                                         BER_BVZERO( &a->a_vals[ k - 1 ] );
 829                                                         BER_BVZERO( &a->a_nvals[ k - 1 ] );
 830                                                         a->a_numvals--;
 831                                                 }
 832                                         }
 833                                 }
 834
 835                                 for ( i = 0; !BER_BVISNULL( &restricted_exops[ i ].op ); i++ ) {
 836                                         if ( rp_delete & restricted_exops[ i ].tag ) {
 837                                                 int     j;
 838
 839                                                 for ( j = 0; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ ) {
 840                                                         int             k;
 841
 842                                                         if ( !bvmatch( &a->a_nvals[ j ], &restricted_exops[ i ].op ) ) {
 843                                                                 continue;
 844                                                         }
 845
 846                                                         ch_free( a->a_vals[ j ].bv_val );
 847                                                         ch_free( a->a_nvals[ j ].bv_val );
 848
 849                                                         for ( k = j + 1; !BER_BVISNULL( &a->a_nvals[ k ] ); k++ ) {
 850                                                                 a->a_vals[ k - 1 ] = a->a_vals[ k ];
 851                                                                 a->a_nvals[ k - 1 ] = a->a_nvals[ k ];
 852                                                         }
 853
 854                                                         BER_BVZERO( &a->a_vals[ k - 1 ] );
 855                                                         BER_BVZERO( &a->a_nvals[ k - 1 ] );
 856                                                         a->a_numvals--;
 857                                                 }
 858                                         }
 859                                 }
 860
 861                                 if ( a->a_vals == NULL ) {
 862                                         assert( a->a_numvals == 0 );
 863
 864                                         attr_delete( &e->e_attrs, mi->mi_ad_restrictedOperation );
 865                                 }
 866                         }
 867                 }
 868
 869                 if ( rp_add ) {
 870                         for ( i = 0; !BER_BVISNULL( &restricted_ops[ i ].op ); i++ ) {
 871                                 if ( rp_add & restricted_ops[ i ].tag ) {
 872                                         attr_merge_one( e, mi->mi_ad_restrictedOperation,
 873                                                         &restricted_ops[ i ].op,
 874                                                         &restricted_ops[ i ].op );
 875                                 }
 876                         }
 877
 878                         for ( i = 0; !BER_BVISNULL( &restricted_exops[ i ].op ); i++ ) {
 879                                 if ( rp_add & restricted_exops[ i ].tag ) {
 880                                         attr_merge_one( e, mi->mi_ad_restrictedOperation,
 881                                                         &restricted_exops[ i ].op,
 882                                                         &restricted_exops[ i ].op );
 883                                 }
 884                         }
 885                 }
 886         }
 887
 888         be->be_restrictops = rp_cur;
 889
 890 done:;
 891         if ( rc == LDAP_SUCCESS ) {
 892                 attrs_free( save_attrs );
 893                 rc = SLAP_CB_CONTINUE;
 894
 895         } else {
 896                 Attribute *tmp = e->e_attrs;
 897                 e->e_attrs = save_attrs;
 898                 attrs_free( tmp );
 899         }
 900         return rc;
 901 }
 902
 903 #if defined(LDAP_SLAPI)
 904 static int
 905 monitor_back_add_plugin( monitor_info_t *mi, Backend *be, Entry *e_database )
 906 {
 907         Slapi_PBlock    *pCurrentPB;
 908         int             i, rc = LDAP_SUCCESS;
 909
 910         if ( slapi_int_pblock_get_first( be, &pCurrentPB ) != LDAP_SUCCESS ) {
 911                 /*
 912                  * LDAP_OTHER is returned if no plugins are installed
 913                  */
 914                 rc = LDAP_OTHER;
 915                 goto done;
 916         }
 917
 918         i = 0;
 919         do {
 920                 Slapi_PluginDesc        *srchdesc;
 921                 char                    buf[ BACKMONITOR_BUFSIZE ];
 922                 struct berval           bv;
 923
 924                 rc = slapi_pblock_get( pCurrentPB, SLAPI_PLUGIN_DESCRIPTION,
 925                                 &srchdesc );
 926                 if ( rc != LDAP_SUCCESS ) {
 927                         goto done;
 928                 }
 929                 if ( srchdesc ) {
 930                         snprintf( buf, sizeof(buf),
 931                                         "plugin %d name: %s; "
 932                                         "vendor: %s; "
 933                                         "version: %s; "
 934                                         "description: %s",
 935                                         i,
 936                                         srchdesc->spd_id,
 937                                         srchdesc->spd_vendor,
 938                                         srchdesc->spd_version,
 939                                         srchdesc->spd_description );
 940                 } else {
 941                         snprintf( buf, sizeof(buf),
 942                                         "plugin %d name: <no description available>", i );
 943                 }
 944
 945                 ber_str2bv( buf, 0, 0, &bv );
 946                 attr_merge_normalize_one( e_database,
 947                                 mi->mi_ad_monitoredInfo, &bv, NULL );
 948
 949                 i++;
 950
 951         } while ( ( slapi_int_pblock_get_next( &pCurrentPB ) == LDAP_SUCCESS )
 952                         && ( pCurrentPB != NULL ) );
 953
 954 done:
 955         return rc;
 956 }
 957 #endif /* defined(LDAP_SLAPI) */