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 2001-2009 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, NULL );
  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, NULL );
 166                         attr_merge( e_database, slap_schema.si_ad_namingContexts,
 167                                 be->be_suffix, NULL );
 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, NULL );
 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                         /* FIXME: RFC 4512 defines namingContexts without an
 409                          *        equality matching rule, making comparisons
 410                          *        like this one tricky.  We use a_vals and
 411                          *        be_suffix instead for now.
 412                          */
 413                         for ( j = 0; !BER_BVISNULL( &a->a_vals[ j ] ); j++ ) {
 414                                 for ( k = 0; !BER_BVISNULL( &be->be_suffix[ k ] ); k++ ) {
 415                                         if ( dn_match( &a->a_vals[ j ],
 416                                                        &be->be_suffix[ k ] ) ) {
 417                                                 rc = 0;
 418                                                 goto done;
 419                                         }
 420                                 }
 421                         }
 422                 }
 423
 424                 mp = ( monitor_entry_t * )(*ep)->e_private;
 425
 426                 assert( mp != NULL );
 427                 ep = &mp->mp_next;
 428         }
 429
 430         bv.bv_val = buf;
 431         bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Database %d", i );
 432         if ( bv.bv_len >= sizeof( buf ) ) {
 433                 rc = -1;
 434                 goto done;
 435         }
 436
 437         rc = monitor_subsys_database_init_one( mi, be,
 438                 ms_database, ms_backend, ms_overlay, &bv, e_database, &ep );
 439         if ( rc != 0 ) {
 440                 goto done;
 441         }
 442         /* database_init_one advanced ep past where we want.
 443          * But it stored the entry we want in mp->mp_next.
 444          */
 445         ep = &mp->mp_next;
 446
 447 done:;
 448         monitor_cache_release( mi, e_database );
 449         if ( rc == 0 && ndn && ep && *ep ) {
 450                 *ndn = (*ep)->e_nname;
 451         }
 452
 453         return rc;
 454 }
 455
 456 int
 457 monitor_subsys_database_init(
 458         BackendDB               *be,
 459         monitor_subsys_t        *ms )
 460 {
 461         monitor_info_t          *mi;
 462         Entry                   *e_database, **ep;
 463         int                     i, rc;
 464         monitor_entry_t         *mp;
 465         monitor_subsys_t        *ms_backend,
 466                                 *ms_overlay;
 467         struct berval           bv;
 468
 469         assert( be != NULL );
 470
 471         ms->mss_modify = monitor_subsys_database_modify;
 472
 473         mi = ( monitor_info_t * )be->be_private;
 474
 475         ms_backend = monitor_back_get_subsys( SLAPD_MONITOR_BACKEND_NAME );
 476         if ( ms_backend == NULL ) {
 477                 Debug( LDAP_DEBUG_ANY,
 478                         "monitor_subsys_database_init: "
 479                         "unable to get "
 480                         "\"" SLAPD_MONITOR_BACKEND_NAME "\" "
 481                         "subsystem\n",
 482                         0, 0, 0 );
 483                 return -1;
 484         }
 485
 486         ms_overlay = monitor_back_get_subsys( SLAPD_MONITOR_OVERLAY_NAME );
 487         if ( ms_overlay == NULL ) {
 488                 Debug( LDAP_DEBUG_ANY,
 489                         "monitor_subsys_database_init: "
 490                         "unable to get "
 491                         "\"" SLAPD_MONITOR_OVERLAY_NAME "\" "
 492                         "subsystem\n",
 493                         0, 0, 0 );
 494                 return -1;
 495         }
 496
 497         if ( monitor_cache_get( mi, &ms->mss_ndn, &e_database ) ) {
 498                 Debug( LDAP_DEBUG_ANY,
 499                         "monitor_subsys_database_init: "
 500                         "unable to get entry \"%s\"\n",
 501                         ms->mss_ndn.bv_val, 0, 0 );
 502                 return( -1 );
 503         }
 504
 505         (void)init_readOnly( mi, e_database, frontendDB->be_restrictops );
 506         (void)init_restrictedOperation( mi, e_database, frontendDB->be_restrictops );
 507
 508         mp = ( monitor_entry_t * )e_database->e_private;
 509         mp->mp_children = NULL;
 510         ep = &mp->mp_children;
 511
 512         BER_BVSTR( &bv, "cn=Frontend" );
 513         rc = monitor_subsys_database_init_one( mi, frontendDB,
 514                 ms, ms_backend, ms_overlay, &bv, e_database, &ep );
 515         if ( rc != 0 ) {
 516                 return rc;
 517         }
 518
 519         i = -1;
 520         LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
 521                 char            buf[ BACKMONITOR_BUFSIZE ];
 522
 523                 bv.bv_val = buf;
 524                 bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Database %d", ++i );
 525                 if ( bv.bv_len >= sizeof( buf ) ) {
 526                         return -1;
 527                 }
 528
 529                 rc = monitor_subsys_database_init_one( mi, be,
 530                         ms, ms_backend, ms_overlay, &bv, e_database, &ep );
 531                 if ( rc != 0 ) {
 532                         return rc;
 533                 }
 534         }
 535
 536         monitor_cache_release( mi, e_database );
 537
 538         return( 0 );
 539 }
 540
 541 /*
 542  * v: array of values
 543  * cur: must not contain the tags corresponding to the values in v
 544  * delta: will contain the tags corresponding to the values in v
 545  */
 546 static int
 547 value_mask( BerVarray v, slap_mask_t cur, slap_mask_t *delta )
 548 {
 549         for ( ; !BER_BVISNULL( v ); v++ ) {
 550                 struct restricted_ops_t         *rops;
 551                 int                             i;
 552
 553                 if ( OID_LEADCHAR( v->bv_val[ 0 ] ) ) {
 554                         rops = restricted_exops;
 555
 556                 } else {
 557                         rops = restricted_ops;
 558                 }
 559
 560                 for ( i = 0; !BER_BVISNULL( &rops[ i ].op ); i++ ) {
 561                         if ( ber_bvstrcasecmp( v, &rops[ i ].op ) != 0 ) {
 562                                 continue;
 563                         }
 564
 565                         if ( rops[ i ].tag & *delta ) {
 566                                 return LDAP_OTHER;
 567                         }
 568
 569                         if ( rops[ i ].tag & cur ) {
 570                                 return LDAP_OTHER;
 571                         }
 572
 573                         cur |= rops[ i ].tag;
 574                         *delta |= rops[ i ].tag;
 575
 576                         break;
 577                 }
 578
 579                 if ( BER_BVISNULL( &rops[ i ].op ) ) {
 580                         return LDAP_INVALID_SYNTAX;
 581                 }
 582         }
 583
 584         return LDAP_SUCCESS;
 585 }
 586
 587 static int
 588 monitor_subsys_database_modify(
 589         Operation       *op,
 590         SlapReply       *rs,
 591         Entry           *e )
 592 {
 593         monitor_info_t  *mi = (monitor_info_t *)op->o_bd->be_private;
 594         int             rc = LDAP_OTHER;
 595         Attribute       *save_attrs, *a;
 596         Modifications   *ml;
 597         Backend         *be;
 598         int             ro_gotval = 1, i, n;
 599         slap_mask_t     rp_add = 0, rp_delete = 0, rp_cur;
 600         struct berval   *tf;
 601
 602         i = sscanf( e->e_nname.bv_val, "cn=database %d,", &n );
 603         if ( i != 1 ) {
 604                 return SLAP_CB_CONTINUE;
 605         }
 606
 607         if ( n < 0 || n >= nBackendDB ) {
 608                 rs->sr_text = "invalid database index";
 609                 return ( rs->sr_err = LDAP_NO_SUCH_OBJECT );
 610         }
 611
 612         LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
 613                 if ( n == 0 ) {
 614                         break;
 615                 }
 616                 n--;
 617         }
 618         /* do not allow some changes on back-monitor (needs work)... */
 619         if ( SLAP_MONITOR( be ) ) {
 620                 rs->sr_text = "no modifications allowed to monitor database entry";
 621                 return ( rs->sr_err = LDAP_UNWILLING_TO_PERFORM );
 622         }
 623
 624         rp_cur = be->be_restrictops;
 625
 626         save_attrs = e->e_attrs;
 627         e->e_attrs = attrs_dup( e->e_attrs );
 628
 629         for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 630                 Modification *mod = &ml->sml_mod;
 631
 632                 if ( mod->sm_desc == mi->mi_ad_readOnly ) {
 633                         int     val = -1;
 634
 635                         if ( mod->sm_values ) {
 636                                 if ( !BER_BVISNULL( &mod->sm_values[ 1 ] ) ) {
 637                                         rs->sr_text = "attempting to modify multiple values of single-valued attribute";
 638                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 639                                         goto done;
 640                                 }
 641
 642                                 if ( bvmatch( &slap_true_bv, mod->sm_values )) {
 643                                         val = 1;
 644
 645                                 } else if ( bvmatch( &slap_false_bv, mod->sm_values )) {
 646                                         val = 0;
 647
 648                                 } else {
 649                                         assert( 0 );
 650                                         rc = rs->sr_err = LDAP_INVALID_SYNTAX;
 651                                         goto done;
 652                                 }
 653                         }
 654
 655                         switch ( mod->sm_op ) {
 656                         case LDAP_MOD_DELETE:
 657                                 if ( ro_gotval < 1 ) {
 658                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 659                                         goto done;
 660                                 }
 661                                 ro_gotval--;
 662
 663                                 if ( val == 0 && ( rp_cur & SLAP_RESTRICT_OP_WRITES ) == SLAP_RESTRICT_OP_WRITES ) {
 664                                         rc = rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
 665                                         goto done;
 666                                 }
 667
 668                                 if ( val == 1 && ( rp_cur & SLAP_RESTRICT_OP_WRITES ) != SLAP_RESTRICT_OP_WRITES ) {
 669                                         rc = rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
 670                                         goto done;
 671                                 }
 672
 673                                 break;
 674
 675                         case LDAP_MOD_REPLACE:
 676                                 ro_gotval = 0;
 677                                 /* fall thru */
 678
 679                         case LDAP_MOD_ADD:
 680                                 if ( ro_gotval > 0 ) {
 681                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 682                                         goto done;
 683                                 }
 684                                 ro_gotval++;
 685
 686                                 if ( val == 1 ) {
 687                                         rp_add |= (~rp_cur) & SLAP_RESTRICT_OP_WRITES;
 688                                         rp_cur |= SLAP_RESTRICT_OP_WRITES;
 689                                         rp_delete &= ~SLAP_RESTRICT_OP_WRITES;
 690
 691                                 } else if ( val == 0 ) {
 692                                         rp_delete |= rp_cur & SLAP_RESTRICT_OP_WRITES;
 693                                         rp_cur &= ~SLAP_RESTRICT_OP_WRITES;
 694                                         rp_add &= ~SLAP_RESTRICT_OP_WRITES;
 695                                 }
 696                                 break;
 697
 698                         default:
 699                                 rc = rs->sr_err = LDAP_OTHER;
 700                                 goto done;
 701                         }
 702
 703                 } else if ( mod->sm_desc == mi->mi_ad_restrictedOperation ) {
 704                         slap_mask_t     mask = 0;
 705
 706                         switch ( mod->sm_op ) {
 707                         case LDAP_MOD_DELETE:
 708                                 if ( mod->sm_values == NULL ) {
 709                                         rp_delete = rp_cur;
 710                                         rp_cur = 0;
 711                                         rp_add = 0;
 712                                         break;
 713                                 }
 714                                 rc = value_mask( mod->sm_values, ~rp_cur, &mask );
 715                                 if ( rc == LDAP_SUCCESS ) {
 716                                         rp_delete |= mask;
 717                                         rp_add &= ~mask;
 718                                         rp_cur &= ~mask;
 719
 720                                 } else if ( rc == LDAP_OTHER ) {
 721                                         rc = LDAP_NO_SUCH_ATTRIBUTE;
 722                                 }
 723                                 break;
 724
 725                         case LDAP_MOD_REPLACE:
 726                                 rp_delete = rp_cur;
 727                                 rp_cur = 0;
 728                                 rp_add = 0;
 729                                 /* fall thru */
 730
 731                         case LDAP_MOD_ADD:
 732                                 rc = value_mask( mod->sm_values, rp_cur, &mask );
 733                                 if ( rc == LDAP_SUCCESS ) {
 734                                         rp_add |= mask;
 735                                         rp_cur |= mask;
 736                                         rp_delete &= ~mask;
 737
 738                                 } else if ( rc == LDAP_OTHER ) {
 739                                         rc = rs->sr_err = LDAP_TYPE_OR_VALUE_EXISTS;
 740                                 }
 741                                 break;
 742
 743                         default:
 744                                 rc = rs->sr_err = LDAP_OTHER;
 745                                 break;
 746                         }
 747
 748                         if ( rc != LDAP_SUCCESS ) {
 749                                 goto done;
 750                         }
 751
 752                 } else if ( is_at_operational( mod->sm_desc->ad_type )) {
 753                 /* accept all operational attributes */
 754                         attr_delete( &e->e_attrs, mod->sm_desc );
 755                         rc = attr_merge( e, mod->sm_desc, mod->sm_values,
 756                                 mod->sm_nvalues );
 757                         if ( rc ) {
 758                                 rc = rs->sr_err = LDAP_OTHER;
 759                                 break;
 760                         }
 761
 762                 } else {
 763                         rc = rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 764                         break;
 765                 }
 766         }
 767
 768         /* sanity checks: */
 769         if ( ro_gotval < 1 ) {
 770                 rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 771                 goto done;
 772         }
 773
 774         if ( ( rp_cur & SLAP_RESTRICT_OP_EXTENDED ) && ( rp_cur & SLAP_RESTRICT_EXOP_MASK ) ) {
 775                 rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 776                 goto done;
 777         }
 778
 779         if ( rp_delete & rp_add ) {
 780                 rc = rs->sr_err = LDAP_OTHER;
 781                 goto done;
 782         }
 783
 784         /* check current value of readOnly */
 785         if ( ( rp_cur & SLAP_RESTRICT_OP_WRITES ) == SLAP_RESTRICT_OP_WRITES ) {
 786                 tf = (struct berval *)&slap_true_bv;
 787
 788         } else {
 789                 tf = (struct berval *)&slap_false_bv;
 790         }
 791
 792         a = attr_find( e->e_attrs, mi->mi_ad_readOnly );
 793         if ( a == NULL ) {
 794                 rc = LDAP_OTHER;
 795                 goto done;
 796         }
 797
 798         if ( !bvmatch( &a->a_vals[ 0 ], tf ) ) {
 799                 attr_delete( &e->e_attrs, mi->mi_ad_readOnly );
 800                 rc = attr_merge_one( e, mi->mi_ad_readOnly, tf, tf );
 801         }
 802
 803         if ( rc == LDAP_SUCCESS ) {
 804                 if ( rp_delete ) {
 805                         if ( rp_delete == be->be_restrictops ) {
 806                                 attr_delete( &e->e_attrs, mi->mi_ad_restrictedOperation );
 807
 808                         } else {
 809                                 a = attr_find( e->e_attrs, mi->mi_ad_restrictedOperation );
 810                                 if ( a == NULL ) {
 811                                         rc = rs->sr_err = LDAP_OTHER;
 812                                         goto done;
 813                                 }
 814
 815                                 for ( i = 0; !BER_BVISNULL( &restricted_ops[ i ].op ); i++ ) {
 816                                         if ( rp_delete & restricted_ops[ i ].tag ) {
 817                                                 int     j;
 818
 819                                                 for ( j = 0; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ ) {
 820                                                         int             k;
 821
 822                                                         if ( !bvmatch( &a->a_nvals[ j ], &restricted_ops[ i ].op ) ) {
 823                                                                 continue;
 824                                                         }
 825
 826                                                         ch_free( a->a_vals[ j ].bv_val );
 827                                                         ch_free( a->a_nvals[ j ].bv_val );
 828
 829                                                         for ( k = j + 1; !BER_BVISNULL( &a->a_nvals[ k ] ); k++ ) {
 830                                                                 a->a_vals[ k - 1 ] = a->a_vals[ k ];
 831                                                                 a->a_nvals[ k - 1 ] = a->a_nvals[ k ];
 832                                                         }
 833
 834                                                         BER_BVZERO( &a->a_vals[ k - 1 ] );
 835                                                         BER_BVZERO( &a->a_nvals[ k - 1 ] );
 836                                                         a->a_numvals--;
 837                                                 }
 838                                         }
 839                                 }
 840
 841                                 for ( i = 0; !BER_BVISNULL( &restricted_exops[ i ].op ); i++ ) {
 842                                         if ( rp_delete & restricted_exops[ i ].tag ) {
 843                                                 int     j;
 844
 845                                                 for ( j = 0; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ ) {
 846                                                         int             k;
 847
 848                                                         if ( !bvmatch( &a->a_nvals[ j ], &restricted_exops[ i ].op ) ) {
 849                                                                 continue;
 850                                                         }
 851
 852                                                         ch_free( a->a_vals[ j ].bv_val );
 853                                                         ch_free( a->a_nvals[ j ].bv_val );
 854
 855                                                         for ( k = j + 1; !BER_BVISNULL( &a->a_nvals[ k ] ); k++ ) {
 856                                                                 a->a_vals[ k - 1 ] = a->a_vals[ k ];
 857                                                                 a->a_nvals[ k - 1 ] = a->a_nvals[ k ];
 858                                                         }
 859
 860                                                         BER_BVZERO( &a->a_vals[ k - 1 ] );
 861                                                         BER_BVZERO( &a->a_nvals[ k - 1 ] );
 862                                                         a->a_numvals--;
 863                                                 }
 864                                         }
 865                                 }
 866
 867                                 if ( a->a_vals == NULL ) {
 868                                         assert( a->a_numvals == 0 );
 869
 870                                         attr_delete( &e->e_attrs, mi->mi_ad_restrictedOperation );
 871                                 }
 872                         }
 873                 }
 874
 875                 if ( rp_add ) {
 876                         for ( i = 0; !BER_BVISNULL( &restricted_ops[ i ].op ); i++ ) {
 877                                 if ( rp_add & restricted_ops[ i ].tag ) {
 878                                         attr_merge_one( e, mi->mi_ad_restrictedOperation,
 879                                                         &restricted_ops[ i ].op,
 880                                                         &restricted_ops[ i ].op );
 881                                 }
 882                         }
 883
 884                         for ( i = 0; !BER_BVISNULL( &restricted_exops[ i ].op ); i++ ) {
 885                                 if ( rp_add & restricted_exops[ i ].tag ) {
 886                                         attr_merge_one( e, mi->mi_ad_restrictedOperation,
 887                                                         &restricted_exops[ i ].op,
 888                                                         &restricted_exops[ i ].op );
 889                                 }
 890                         }
 891                 }
 892         }
 893
 894         be->be_restrictops = rp_cur;
 895
 896 done:;
 897         if ( rc == LDAP_SUCCESS ) {
 898                 attrs_free( save_attrs );
 899                 rc = SLAP_CB_CONTINUE;
 900
 901         } else {
 902                 Attribute *tmp = e->e_attrs;
 903                 e->e_attrs = save_attrs;
 904                 attrs_free( tmp );
 905         }
 906         return rc;
 907 }
 908
 909 #if defined(LDAP_SLAPI)
 910 static int
 911 monitor_back_add_plugin( monitor_info_t *mi, Backend *be, Entry *e_database )
 912 {
 913         Slapi_PBlock    *pCurrentPB;
 914         int             i, rc = LDAP_SUCCESS;
 915
 916         if ( slapi_int_pblock_get_first( be, &pCurrentPB ) != LDAP_SUCCESS ) {
 917                 /*
 918                  * LDAP_OTHER is returned if no plugins are installed
 919                  */
 920                 rc = LDAP_OTHER;
 921                 goto done;
 922         }
 923
 924         i = 0;
 925         do {
 926                 Slapi_PluginDesc        *srchdesc;
 927                 char                    buf[ BACKMONITOR_BUFSIZE ];
 928                 struct berval           bv;
 929
 930                 rc = slapi_pblock_get( pCurrentPB, SLAPI_PLUGIN_DESCRIPTION,
 931                                 &srchdesc );
 932                 if ( rc != LDAP_SUCCESS ) {
 933                         goto done;
 934                 }
 935                 if ( srchdesc ) {
 936                         snprintf( buf, sizeof(buf),
 937                                         "plugin %d name: %s; "
 938                                         "vendor: %s; "
 939                                         "version: %s; "
 940                                         "description: %s",
 941                                         i,
 942                                         srchdesc->spd_id,
 943                                         srchdesc->spd_vendor,
 944                                         srchdesc->spd_version,
 945                                         srchdesc->spd_description );
 946                 } else {
 947                         snprintf( buf, sizeof(buf),
 948                                         "plugin %d name: <no description available>", i );
 949                 }
 950
 951                 ber_str2bv( buf, 0, 0, &bv );
 952                 attr_merge_normalize_one( e_database,
 953                                 mi->mi_ad_monitoredInfo, &bv, NULL );
 954
 955                 i++;
 956
 957         } while ( ( slapi_int_pblock_get_next( &pCurrentPB ) == LDAP_SUCCESS )
 958                         && ( pCurrentPB != NULL ) );
 959
 960 done:
 961         return rc;
 962 }
 963 #endif /* defined(LDAP_SLAPI) */