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

   1 /* dynlist.c - dynamic list overlay */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 2003-2005 The OpenLDAP Foundation.
   5  * Portions Copyright 2004-2005 Pierangelo Masarati.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGEMENTS:
  17  * This work was initially developed by Pierangelo Masarati
  18  * for SysNet s.n.c., for inclusion in OpenLDAP Software.
  19  */
  20
  21 #include "portable.h"
  22
  23 #ifdef SLAPD_OVER_DYNLIST
  24
  25 #if LDAP_VENDOR_VERSION_MINOR != X && LDAP_VENDOR_VERSION_MINOR < 3
  26 #define OL_2_2_COMPAT
  27 #endif
  28
  29 #include <stdio.h>
  30
  31 #include <ac/string.h>
  32
  33 #include "slap.h"
  34 #ifndef OL_2_2_COMPAT
  35 #include "config.h"
  36 #endif
  37 #include "lutil.h"
  38
  39 /* FIXME: the code differs if SLAP_OPATTRS is defined or not;
  40  * SLAP_OPATTRS is not defined in 2.2 yet, while this overlay
  41  * expects HEAD code at least later than August 6, 2004. */
  42 /* FIXME: slap_anlist_no_attrs was introduced in 2.3; here it
  43  * is anticipated to allow using this overlay with 2.2. */
  44
  45 #ifdef OL_2_2_COMPAT
  46 static AttributeName anlist_no_attrs[] = {
  47         { BER_BVC( LDAP_NO_ATTRS ), NULL, 0, NULL },
  48         { BER_BVNULL, NULL, 0, NULL }
  49 };
  50
  51 static AttributeName *slap_anlist_no_attrs = anlist_no_attrs;
  52 #endif
  53
  54 typedef struct dynlist_info_t {
  55         ObjectClass             *dli_oc;
  56         AttributeDescription    *dli_ad;
  57         AttributeDescription    *dli_member_ad;
  58         struct berval           dli_default_filter;
  59         struct dynlist_info_t   *dli_next;
  60 } dynlist_info_t;
  61
  62 static dynlist_info_t *
  63 dynlist_is_dynlist( Operation *op, SlapReply *rs )
  64 {
  65         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
  66         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
  67
  68         Attribute       *a;
  69
  70         a = attrs_find( rs->sr_entry->e_attrs, slap_schema.si_ad_objectClass );
  71         if ( a == NULL ) {
  72                 /* FIXME: objectClass must be present; for non-storage
  73                  * backends, like back-ldap, it needs to be added
  74                  * to the requested attributes */
  75                 return NULL;
  76         }
  77
  78         for ( ; dli; dli = dli->dli_next ) {
  79                 if ( value_find_ex( slap_schema.si_ad_objectClass,
  80                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  81                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  82                                 a->a_nvals, &dli->dli_oc->soc_cname,
  83                                 op->o_tmpmemctx ) == 0 )
  84                 {
  85                         return dli;
  86                 }
  87         }
  88
  89         return NULL;
  90 }
  91
  92 static int
  93 dynlist_make_filter( Operation *op, struct berval *oldf, struct berval *newf )
  94 {
  95         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
  96         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
  97
  98         char            *ptr;
  99
 100         assert( oldf != NULL );
 101         assert( newf != NULL );
 102         assert( !BER_BVISNULL( oldf ) );
 103         assert( !BER_BVISEMPTY( oldf ) );
 104
 105         newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" )
 106                 + dli->dli_oc->soc_cname.bv_len + oldf->bv_len;
 107         newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx );
 108         if ( newf->bv_val == NULL ) {
 109                 return -1;
 110         }
 111         ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" );
 112         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 113         ptr = lutil_strcopy( ptr, "))" );
 114         ptr = lutil_strcopy( ptr, oldf->bv_val );
 115         ptr = lutil_strcopy( ptr, ")" );
 116         newf->bv_len = ptr - newf->bv_val;
 117
 118         return 0;
 119 }
 120
 121 typedef struct dynlist_sc_t {
 122         dynlist_info_t    *dlc_dli;
 123         Entry           *dlc_e;
 124 } dynlist_sc_t;
 125
 126 static int
 127 dynlist_sc_update( Operation *op, SlapReply *rs )
 128 {
 129         Entry                   *e;
 130         Attribute               *a;
 131         int                     opattrs,
 132                                 userattrs;
 133         AccessControlState      acl_state = ACL_STATE_INIT;
 134
 135         dynlist_sc_t            *dlc;
 136
 137         if ( rs->sr_type != REP_SEARCH ) {
 138                 return 0;
 139         }
 140
 141         dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 142         e = dlc->dlc_e;
 143
 144         assert( e != NULL );
 145         assert( rs->sr_entry != NULL );
 146
 147         /* test access to entry */
 148         if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 149                                 NULL, ACL_READ, NULL ) )
 150         {
 151                 goto done;
 152         }
 153
 154         if ( dlc->dlc_dli->dli_member_ad ) {
 155
 156                 /* if access allowed, try to add values, emulating permissive
 157                  * control to silently ignore duplicates */
 158                 if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 159                                         NULL, ACL_READ, NULL ) )
 160                 {
 161                         Modification    mod;
 162                         const char      *text = NULL;
 163                         char            textbuf[1024];
 164                         struct berval   vals[ 2 ], nvals[ 2 ];
 165
 166                         vals[ 0 ] = rs->sr_entry->e_name;
 167                         BER_BVZERO( &vals[ 1 ] );
 168                         nvals[ 0 ] = rs->sr_entry->e_nname;
 169                         BER_BVZERO( &nvals[ 1 ] );
 170
 171                         mod.sm_op = LDAP_MOD_ADD;
 172                         mod.sm_desc = dlc->dlc_dli->dli_member_ad;
 173                         mod.sm_type = dlc->dlc_dli->dli_member_ad->ad_cname;
 174                         mod.sm_values = vals;
 175                         mod.sm_nvalues = nvals;
 176
 177                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 178                                         &text, textbuf, sizeof( textbuf ) );
 179                 }
 180
 181                 goto done;
 182         }
 183
 184 #ifndef SLAP_OPATTRS
 185         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 186         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 187 #else /* SLAP_OPATTRS */
 188         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 189         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 190 #endif /* SLAP_OPATTRS */
 191
 192         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 193                 BerVarray       vals, nvals = NULL;
 194                 int             i, j;
 195
 196                 /* if attribute is not requested, skip it */
 197                 if ( rs->sr_attrs == NULL ) {
 198                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 199                                 continue;
 200                         }
 201
 202                 } else {
 203                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 204                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 205                                 {
 206                                         continue;
 207                                 }
 208
 209                         } else {
 210                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 211                                 {
 212                                         continue;
 213                                 }
 214                         }
 215                 }
 216
 217                 /* test access to attribute */
 218                 if ( op->ors_attrsonly ) {
 219                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 220                                                 ACL_READ, &acl_state ) )
 221                         {
 222                                 continue;
 223                         }
 224                 }
 225
 226                 /* single-value check: keep first only */
 227                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 228                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 229                                 continue;
 230                         }
 231                 }
 232
 233                 /* test access to attribute */
 234                 for ( i = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ )
 235                         /* just count */ ;
 236
 237                 vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 238                 if ( a->a_nvals != a->a_vals ) {
 239                         nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 240                 }
 241
 242                 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
 243                         if ( access_allowed( op, rs->sr_entry, a->a_desc,
 244                                                 &a->a_nvals[i], ACL_READ, &acl_state ) )
 245                         {
 246                                 vals[j] = a->a_vals[i];
 247                                 if ( nvals ) {
 248                                         nvals[j] = a->a_nvals[i];
 249                                 }
 250                                 j++;
 251                         }
 252                 }
 253
 254                 /* if access allowed, try to add values, emulating permissive
 255                  * control to silently ignore duplicates */
 256                 if ( j != 0 ) {
 257                         Modification    mod;
 258                         const char      *text = NULL;
 259                         char            textbuf[1024];
 260
 261                         BER_BVZERO( &vals[j] );
 262                         if ( nvals ) {
 263                                 BER_BVZERO( &nvals[j] );
 264                         }
 265
 266                         mod.sm_op = LDAP_MOD_ADD;
 267                         mod.sm_desc = a->a_desc;
 268                         mod.sm_type = a->a_desc->ad_cname;
 269                         mod.sm_values = vals;
 270                         mod.sm_nvalues = nvals;
 271
 272                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 273                                         &text, textbuf, sizeof( textbuf ) );
 274                 }
 275
 276                 op->o_tmpfree( vals, op->o_tmpmemctx );
 277                 if ( nvals ) {
 278                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 279                 }
 280         }
 281
 282 done:;
 283         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 284                 entry_free( rs->sr_entry );
 285         }
 286
 287         return 0;
 288 }
 289
 290 static int
 291 dynlist_send_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 292 {
 293         Attribute       *a;
 294         slap_callback   cb;
 295         Operation       o = *op;
 296         SlapReply       r = { REP_SEARCH };
 297         struct berval   *url;
 298         Entry           *e;
 299         slap_mask_t     e_flags;
 300         int             opattrs,
 301                         userattrs;
 302         dynlist_sc_t    dlc = { 0 };
 303
 304         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 305         if ( a == NULL ) {
 306                 /* FIXME: error? */
 307                 return SLAP_CB_CONTINUE;
 308         }
 309
 310         e = entry_dup( rs->sr_entry );
 311         e_flags = rs->sr_flags | ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 312
 313         dlc.dlc_e = e;
 314         dlc.dlc_dli = dli;
 315         cb.sc_private = &dlc;
 316         cb.sc_response = dynlist_sc_update;
 317         cb.sc_cleanup = NULL;
 318         cb.sc_next = NULL;
 319
 320         o.o_callback = &cb;
 321         o.ors_deref = LDAP_DEREF_NEVER;
 322         o.ors_limit = NULL;
 323         o.ors_tlimit = SLAP_NO_LIMIT;
 324         o.ors_slimit = SLAP_NO_LIMIT;
 325
 326 #ifndef SLAP_OPATTRS
 327         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 328         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 329 #else /* SLAP_OPATTRS */
 330         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 331         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 332 #endif /* SLAP_OPATTRS */
 333
 334         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 335                 LDAPURLDesc     *lud = NULL;
 336                 int             i, j;
 337                 struct berval   dn;
 338                 int             rc;
 339
 340                 BER_BVZERO( &o.o_req_dn );
 341                 BER_BVZERO( &o.o_req_ndn );
 342                 o.ors_filter = NULL;
 343                 o.ors_attrs = NULL;
 344                 BER_BVZERO( &o.ors_filterstr );
 345
 346                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 347                         /* FIXME: error? */
 348                         continue;
 349                 }
 350
 351                 if ( lud->lud_host ) {
 352                         /* FIXME: host not allowed; reject as illegal? */
 353                         Debug( LDAP_DEBUG_ANY, "dynlist_send_entry(\"%s\"): "
 354                                 "illegal URI \"%s\"\n",
 355                                 e->e_name.bv_val, url->bv_val, 0 );
 356                         goto cleanup;
 357                 }
 358
 359                 if ( lud->lud_dn == NULL ) {
 360                         /* note that an empty base is not honored in terms
 361                          * of defaultSearchBase, because select_backend()
 362                          * is not aware of the defaultSearchBase option;
 363                          * this can be useful in case of a database serving
 364                          * the empty suffix */
 365                         BER_BVSTR( &dn, "" );
 366                 } else {
 367                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 368                 }
 369                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 370                 if ( rc != LDAP_SUCCESS ) {
 371                         /* FIXME: error? */
 372                         goto cleanup;
 373                 }
 374                 o.ors_scope = lud->lud_scope;
 375
 376                 if ( dli->dli_member_ad != NULL ) {
 377                         o.ors_attrs = slap_anlist_no_attrs;
 378
 379                 } else if ( lud->lud_attrs == NULL ) {
 380                         o.ors_attrs = rs->sr_attrs;
 381
 382                 } else {
 383                         for ( i = 0; lud->lud_attrs[i]; i++)
 384                                 /* just count */ ;
 385
 386                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 387                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 388                                 const char      *text = NULL;
 389
 390                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 391                                 o.ors_attrs[j].an_desc = NULL;
 392                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 393                                 /* FIXME: ignore errors... */
 394
 395                                 if ( rs->sr_attrs == NULL ) {
 396                                         if ( o.ors_attrs[j].an_desc != NULL &&
 397                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 398                                         {
 399                                                 continue;
 400                                         }
 401
 402                                 } else {
 403                                         if ( o.ors_attrs[j].an_desc != NULL &&
 404                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 405                                         {
 406                                                 if ( !opattrs && !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 407                                                 {
 408                                                         continue;
 409                                                 }
 410
 411                                         } else {
 412                                                 if ( !userattrs &&
 413                                                                 o.ors_attrs[j].an_desc != NULL &&
 414                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 415                                                 {
 416                                                         continue;
 417                                                 }
 418                                         }
 419                                 }
 420
 421                                 j++;
 422                         }
 423
 424                         if ( j == 0 ) {
 425                                 goto cleanup;
 426                         }
 427
 428                         BER_BVZERO( &o.ors_attrs[j].an_name );
 429                 }
 430
 431                 if ( lud->lud_filter == NULL ) {
 432                         ber_dupbv_x( &o.ors_filterstr,
 433                                         &dli->dli_default_filter, op->o_tmpmemctx );
 434                 } else {
 435                         struct berval   flt;
 436                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 437                         if ( dynlist_make_filter( op, &flt, &o.ors_filterstr ) ) {
 438                                 /* error */
 439                                 goto cleanup;
 440                         }
 441                 }
 442                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 443                 if ( o.ors_filter == NULL ) {
 444                         goto cleanup;
 445                 }
 446
 447                 o.o_bd = select_backend( &o.o_req_ndn, 0, 1 );
 448                 if ( o.o_bd && o.o_bd->be_search ) {
 449 #ifdef SLAP_OPATTRS
 450                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 451 #endif /* SLAP_OPATTRS */
 452                         (void)o.o_bd->be_search( &o, &r );
 453                 }
 454
 455 cleanup:;
 456                 if ( o.ors_filter ) {
 457                         filter_free_x( &o, o.ors_filter );
 458                 }
 459                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 460                                 && o.ors_attrs != slap_anlist_no_attrs )
 461                 {
 462                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 463                 }
 464                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 465                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 466                 }
 467                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 468                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 469                 }
 470                 if ( o.ors_filterstr.bv_val != lud->lud_filter ) {
 471                         op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 472                         lud->lud_filter = NULL;
 473                 }
 474                 if ( lud ) {
 475                         ldap_free_urldesc( lud );
 476                 }
 477         }
 478
 479         rs->sr_entry = e;
 480         rs->sr_flags = e_flags;
 481
 482         return SLAP_CB_CONTINUE;
 483 }
 484
 485 static int
 486 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 487 {
 488         /* save the entry in the private field of the callback,
 489          * so it doesn't get freed (it's temporary!) */
 490         if ( rs->sr_entry != NULL ) {
 491                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 492                 dlc->dlc_e = rs->sr_entry;
 493                 rs->sr_entry = NULL;
 494         }
 495
 496         return 0;
 497 }
 498
 499 static int
 500 dynlist_compare( Operation *op, SlapReply *rs )
 501 {
 502         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 503         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 504
 505         for ( ; dli != NULL; dli = dli->dli_next ) {
 506                 if ( op->oq_compare.rs_ava->aa_desc == dli->dli_member_ad ) {
 507                         /* This compare is for one of the attributes we're
 508                          * interested in. We'll use slapd's existing dyngroup
 509                          * evaluator to get the answer we want.
 510                          */
 511                         int cache = op->o_do_not_cache;
 512
 513                         op->o_do_not_cache = 1;
 514                         rs->sr_err = backend_group( op, NULL, &op->o_req_ndn,
 515                                 &op->oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 516                         op->o_do_not_cache = cache;
 517                         switch ( rs->sr_err ) {
 518                         case LDAP_SUCCESS:
 519                                 rs->sr_err = LDAP_COMPARE_TRUE;
 520                                 break;
 521
 522                         case LDAP_NO_SUCH_OBJECT:
 523                                 /* NOTE: backend_group() returns noSuchObject
 524                                  * if op_ndn does not exist; however, since
 525                                  * dynamic list expansion means that the
 526                                  * member attribute is virtually present, the
 527                                  * non-existence of the asserted value implies
 528                                  * the assertion is FALSE rather than
 529                                  * UNDEFINED */
 530                                 rs->sr_err = LDAP_COMPARE_FALSE;
 531                         }
 532
 533                         return SLAP_CB_CONTINUE;
 534                 }
 535         }
 536
 537         dli = (dynlist_info_t *)on->on_bi.bi_private;
 538         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 539                 Attribute       *a;
 540                 slap_callback   cb;
 541                 Operation       o = *op;
 542                 SlapReply       r = { REP_SEARCH };
 543                 AttributeName   an[2];
 544                 int             rc;
 545                 dynlist_sc_t    dlc = { 0 };
 546                 Entry           *e;
 547
 548                 int cache = op->o_do_not_cache;
 549                 struct berval   op_dn = op->o_dn,
 550                                 op_ndn = op->o_ndn;
 551                 BackendDB       *op_bd = op->o_bd;
 552
 553                 /* fetch the entry as rootdn (a hack to see if it exists
 554                  * and if it has the right objectClass) */
 555                 op->o_do_not_cache = 1;
 556                 op->o_dn = op->o_bd->be_rootdn;
 557                 op->o_ndn = op->o_bd->be_rootndn;
 558                 op->o_bd = select_backend( &op->o_req_ndn, 0, 0 );
 559
 560                 r.sr_err = be_entry_get_rw( op, &op->o_req_ndn,
 561                         dli->dli_oc, NULL, 0, &e );
 562                 if ( e != NULL ) {
 563                         be_entry_release_r( op, e );
 564                 }
 565                 op->o_do_not_cache = cache;
 566                 op->o_dn = op_dn;
 567                 op->o_ndn = op_ndn;
 568                 op->o_bd = op_bd;
 569                 if ( r.sr_err != LDAP_SUCCESS ) {
 570                         continue;
 571                 }
 572
 573                 /* if the entry has the right objectClass, generate
 574                  * the dynamic list and compare */
 575                 dlc.dlc_dli = dli;
 576                 cb.sc_private = &dlc;
 577                 cb.sc_response = dynlist_sc_save_entry;
 578                 cb.sc_cleanup = NULL;
 579                 cb.sc_next = NULL;
 580                 o.o_callback = &cb;
 581
 582                 o.o_tag = LDAP_REQ_SEARCH;
 583                 o.ors_limit = NULL;
 584                 o.ors_tlimit = SLAP_NO_LIMIT;
 585                 o.ors_slimit = SLAP_NO_LIMIT;
 586
 587                 o.o_bd = select_backend( &o.o_req_ndn, 0, 1 );
 588                 if ( !o.o_bd || !o.o_bd->be_search ) {
 589                         return SLAP_CB_CONTINUE;
 590                 }
 591
 592                 BER_BVSTR( &o.ors_filterstr, "(objectClass=*)" );
 593                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 594                 if ( o.ors_filter == NULL ) {
 595                         /* FIXME: error? */
 596                         return SLAP_CB_CONTINUE;
 597                 }
 598
 599                 o.ors_scope = LDAP_SCOPE_BASE;
 600                 o.ors_deref = LDAP_DEREF_NEVER;
 601                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 602                 an[0].an_desc = op->orc_ava->aa_desc;
 603                 BER_BVZERO( &an[1].an_name );
 604                 o.ors_attrs = an;
 605                 o.ors_attrsonly = 0;
 606
 607                 rc = o.o_bd->be_search( &o, &r );
 608                 filter_free_x( &o, o.ors_filter );
 609
 610                 if ( rc != 0 ) {
 611                         return rc;
 612                 }
 613
 614                 if ( dlc.dlc_e != NULL ) {
 615                         r.sr_entry = dlc.dlc_e;
 616                 }
 617
 618                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 619                         /* error? */
 620                         return SLAP_CB_CONTINUE;
 621                 }
 622
 623                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 624                         a != NULL;
 625                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 626                 {
 627                         /* if we're here, we got a match... */
 628                         rs->sr_err = LDAP_COMPARE_FALSE;
 629
 630                         if ( value_find_ex( op->orc_ava->aa_desc,
 631                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 632                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 633                                 a->a_nvals, &op->orc_ava->aa_value, op->o_tmpmemctx ) == 0 )
 634                         {
 635                                 rs->sr_err = LDAP_COMPARE_TRUE;
 636                                 break;
 637                         }
 638                 }
 639
 640                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 641                         entry_free( r.sr_entry );
 642                 }
 643         }
 644
 645         return SLAP_CB_CONTINUE;
 646 }
 647
 648 static int
 649 dynlist_response( Operation *op, SlapReply *rs )
 650 {
 651         dynlist_info_t  *dli;
 652
 653         switch ( op->o_tag ) {
 654         case LDAP_REQ_SEARCH:
 655                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 656                 {
 657                         dli = dynlist_is_dynlist( op, rs );
 658                         if ( dli != NULL ) {
 659                                 return dynlist_send_entry( op, rs, dli );
 660                         }
 661                 }
 662                 break;
 663
 664         case LDAP_REQ_COMPARE:
 665                 switch ( rs->sr_err ) {
 666                 /* NOTE: we waste a few cycles running the dynamic list
 667                  * also when the result is FALSE, which occurs if the
 668                  * dynamic entry itself contains the AVA attribute  */
 669                 /* FIXME: this approach is less than optimal; a dedicated
 670                  * compare op should be implemented, that fetches the
 671                  * entry, checks if it has the appropriate objectClass
 672                  * and, in case, runs a compare thru all the URIs,
 673                  * stopping at the first positive occurrence; see ITS#3756 */
 674                 case LDAP_COMPARE_FALSE:
 675                 case LDAP_NO_SUCH_ATTRIBUTE:
 676                         return dynlist_compare( op, rs );
 677                 }
 678                 break;
 679
 680         default:
 681                 break;
 682         }
 683
 684         return SLAP_CB_CONTINUE;
 685 }
 686
 687 static int
 688 dynlist_build_def_filter( dynlist_info_t *dli )
 689 {
 690         char    *ptr;
 691
 692         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 693                 + dli->dli_oc->soc_cname.bv_len;
 694         dli->dli_default_filter.bv_val = SLAP_MALLOC( dli->dli_default_filter.bv_len + 1 );
 695         if ( dli->dli_default_filter.bv_val == NULL ) {
 696                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 697                         0, 0, 0 );
 698                 return -1;
 699         }
 700
 701         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 702         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 703         ptr = lutil_strcopy( ptr, "))" );
 704
 705         assert( dli->dli_default_filter.bv_len == ptr - dli->dli_default_filter.bv_val );
 706
 707         return 0;
 708 }
 709
 710 #ifdef OL_2_2_COMPAT
 711 static int
 712 dynlist_db_config(
 713         BackendDB       *be,
 714         const char      *fname,
 715         int             lineno,
 716         int             argc,
 717         char            **argv )
 718 {
 719         slap_overinst   *on = (slap_overinst *)be->bd_info;
 720
 721         int             rc = 0;
 722
 723         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 724                 dynlist_info_t          **dlip;
 725                 ObjectClass             *oc;
 726                 AttributeDescription    *ad = NULL,
 727                                         *member_ad = NULL;
 728                 const char              *text;
 729
 730                 if ( argc < 3 || argc > 4 ) {
 731                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 732                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 733                                 "invalid arg number #%d.\n",
 734                                 fname, lineno, argc );
 735                         return 1;
 736                 }
 737
 738                 oc = oc_find( argv[1] );
 739                 if ( oc == NULL ) {
 740                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 741                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 742                                 "unable to find ObjectClass \"%s\"\n",
 743                                 fname, lineno, argv[ 1 ] );
 744                         return 1;
 745                 }
 746
 747                 rc = slap_str2ad( argv[2], &ad, &text );
 748                 if ( rc != LDAP_SUCCESS ) {
 749                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 750                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 751                                 "unable to find AttributeDescription \"%s\"\n",
 752                                 fname, lineno, argv[2] );
 753                         return 1;
 754                 }
 755
 756                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 757                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 758                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 759                                 "AttributeDescription \"%s\" "
 760                                 "must be a subtype of \"labeledURI\"\n",
 761                                 fname, lineno, argv[2] );
 762                         return 1;
 763                 }
 764
 765                 if ( argc == 4 ) {
 766                         rc = slap_str2ad( argv[3], &member_ad, &text );
 767                         if ( rc != LDAP_SUCCESS ) {
 768                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 769                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 770                                         "unable to find AttributeDescription \"%s\"\n",
 771                                         fname, lineno, argv[3] );
 772                                 return 1;
 773                         }
 774                 }
 775
 776                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 777                         *dlip; dlip = &(*dlip)->dli_next )
 778                         /* go to last */;
 779
 780                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 781                 (*dlip)->dli_oc = oc;
 782                 (*dlip)->dli_ad = ad;
 783                 (*dlip)->dli_member_ad = member_ad;
 784
 785                 if ( dynlist_build_def_filter( *dlip ) ) {
 786                         ch_free( *dlip );
 787                         *dlip = NULL;
 788                         return 1;
 789                 }
 790
 791         /* allow dyngroup syntax */
 792         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
 793                 dynlist_info_t          **dlip;
 794                 ObjectClass             *oc;
 795                 AttributeDescription    *ad = NULL,
 796                                         *member_ad = NULL;
 797                 const char              *text;
 798
 799                 if ( argc != 3 ) {
 800                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 801                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 802                                 "invalid arg number #%d.\n",
 803                                 fname, lineno, argc );
 804                         return 1;
 805                 }
 806
 807                 oc = oc_find( "groupOfURLs" );
 808                 if ( oc == NULL ) {
 809                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 810                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 811                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
 812                                 fname, lineno, 0 );
 813                         return 1;
 814                 }
 815
 816                 rc = slap_str2ad( argv[1], &member_ad, &text );
 817                 if ( rc != LDAP_SUCCESS ) {
 818                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 819                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 820                                 "unable to find AttributeDescription \"%s\"\n",
 821                                 fname, lineno, argv[1] );
 822                         return 1;
 823                 }
 824
 825                 rc = slap_str2ad( argv[2], &ad, &text );
 826                 if ( rc != LDAP_SUCCESS ) {
 827                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 828                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 829                                 "unable to find AttributeDescription \"%s\"\n",
 830                                 fname, lineno, argv[2] );
 831                         return 1;
 832                 }
 833
 834                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 835                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 836                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 837                                 "AttributeDescription \"%s\" "
 838                                 "must be a subtype of \"labeledURI\"\n",
 839                                 fname, lineno, argv[2] );
 840                         return 1;
 841                 }
 842
 843
 844                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 845                         *dlip; dlip = &(*dlip)->dli_next )
 846                         /* go to last */;
 847
 848                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 849                 (*dlip)->dli_oc = oc;
 850                 (*dlip)->dli_ad = ad;
 851                 (*dlip)->dli_member_ad = member_ad;
 852
 853                 if ( dynlist_build_def_filter( *dlip ) ) {
 854                         ch_free( *dlip );
 855                         *dlip = NULL;
 856                         return 1;
 857                 }
 858
 859         } else {
 860                 rc = SLAP_CONF_UNKNOWN;
 861         }
 862
 863         return rc;
 864 }
 865
 866 #else
 867 enum {
 868         DL_ATTRSET = 1,
 869         DL_ATTRPAIR,
 870         DL_LAST
 871 };
 872
 873 static ConfigDriver     dl_cfgen;
 874
 875 static ConfigTable dlcfg[] = {
 876         { "dynlist-attrset", "group-oc> <URL-ad> <member-ad",
 877                 3, 4, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
 878                 "( OLcfgOvAt:8.1 NAME 'olcDLattrSet' "
 879                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
 880                         "EQUALITY caseIgnoreMatch "
 881                         "SYNTAX OMsDirectoryString "
 882                         "X-ORDERED 'VALUES' )",
 883                         NULL, NULL },
 884         { "dynlist-attrpair", "member-ad> <URL-ad",
 885                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
 886                         NULL, NULL, NULL },
 887         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
 888 };
 889
 890 static ConfigOCs dlocs[] = {
 891         { "( OLcfgOvOc:8.1 "
 892                 "NAME 'olcDynamicList' "
 893                 "DESC 'Dynamic list configuration' "
 894                 "SUP olcOverlayConfig "
 895                 "MAY olcDLattrSet )",
 896                 Cft_Overlay, dlcfg, NULL, NULL },
 897         { NULL, 0, NULL }
 898 };
 899
 900 static int
 901 dl_cfgen( ConfigArgs *c )
 902 {
 903         slap_overinst   *on = (slap_overinst *)c->bi;
 904         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 905
 906         int             rc = 0, i;
 907
 908         if ( c->op == SLAP_CONFIG_EMIT ) {
 909                 switch( c->type ) {
 910                 case DL_ATTRSET:
 911                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
 912                                 struct berval   bv;
 913                                 char            *ptr = c->msg;
 914
 915                                 assert( dli->dli_oc != NULL );
 916                                 assert( dli->dli_ad != NULL );
 917
 918                                 ptr += snprintf( c->msg, sizeof( c->msg ),
 919                                         SLAP_X_ORDERED_FMT "%s %s", i,
 920                                         dli->dli_oc->soc_cname.bv_val,
 921                                         dli->dli_ad->ad_cname.bv_val );
 922
 923                                 if ( dli->dli_member_ad != NULL ) {
 924                                         ptr[ 0 ] = ' ';
 925                                         ptr++;
 926                                         ptr = lutil_strcopy( ptr, dli->dli_member_ad->ad_cname.bv_val );
 927                                 }
 928
 929                                 bv.bv_val = c->msg;
 930                                 bv.bv_len = ptr - bv.bv_val;
 931                                 value_add_one( &c->rvalue_vals, &bv );
 932                         }
 933                         break;
 934
 935                 case DL_ATTRPAIR:
 936                         rc = 1;
 937                         break;
 938
 939                 default:
 940                         rc = 1;
 941                         break;
 942                 }
 943
 944                 return rc;
 945
 946         } else if ( c->op == LDAP_MOD_DELETE ) {
 947                 switch( c->type ) {
 948                 case DL_ATTRSET:
 949                         if ( c->valx < 0 ) {
 950                                 dynlist_info_t  *dli_next;
 951
 952                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
 953                                         dli_next = dli->dli_next;
 954
 955                                         ch_free( dli->dli_default_filter.bv_val );
 956                                         ch_free( dli );
 957                                 }
 958
 959                                 on->on_bi.bi_private = NULL;
 960
 961                         } else {
 962                                 dynlist_info_t  **dlip;
 963
 964                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 965                                         i < c->valx; i++ )
 966                                 {
 967                                         if ( *dlip == NULL ) {
 968                                                 return 1;
 969                                         }
 970                                         dlip = &(*dlip)->dli_next;
 971                                 }
 972
 973                                 dli = *dlip;
 974                                 *dlip = dli->dli_next;
 975                                 ch_free( dli->dli_default_filter.bv_val );
 976                                 ch_free( dli );
 977
 978                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
 979                         }
 980                         break;
 981
 982                 case DL_ATTRPAIR:
 983                         rc = 1;
 984                         break;
 985
 986                 default:
 987                         rc = 1;
 988                         break;
 989                 }
 990
 991                 return 1;       /* FIXME */
 992         }
 993
 994         switch( c->type ) {
 995         case DL_ATTRSET: {
 996                 dynlist_info_t          **dlip,
 997                                         *dli_next = NULL;
 998                 ObjectClass             *oc = NULL;
 999                 AttributeDescription    *ad = NULL,
1000                                         *member_ad = NULL;
1001                 const char              *text;
1002
1003                 oc = oc_find( c->argv[ 1 ] );
1004                 if ( oc == NULL ) {
1005                         snprintf( c->msg, sizeof( c->msg ),
1006                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1007                                 "unable to find ObjectClass \"%s\"",
1008                                 c->argv[ 1 ] );
1009                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1010                                 c->log, c->msg, 0 );
1011                         return 1;
1012                 }
1013
1014                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1015                 if ( rc != LDAP_SUCCESS ) {
1016                         snprintf( c->msg, sizeof( c->msg ),
1017                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1018                                 "unable to find AttributeDescription \"%s\"",
1019                                 c->argv[ 2 ] );
1020                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1021                                 c->log, c->msg, 0 );
1022                         return 1;
1023                 }
1024
1025                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1026                         snprintf( c->msg, sizeof( c->msg ),
1027                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1028                                 "AttributeDescription \"%s\" "
1029                                 "must be a subtype of \"labeledURI\"",
1030                                 c->argv[ 2 ] );
1031                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1032                                 c->log, c->msg, 0 );
1033                         return 1;
1034                 }
1035
1036                 if ( c->argc == 4 ) {
1037                         rc = slap_str2ad( c->argv[ 3 ], &member_ad, &text );
1038                         if ( rc != LDAP_SUCCESS ) {
1039                                 snprintf( c->msg, sizeof( c->msg ),
1040                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1041                                         "unable to find AttributeDescription \"%s\"\n",
1042                                         c->argv[ 3 ] );
1043                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1044                                         c->log, c->msg, 0 );
1045                                 return 1;
1046                         }
1047                 }
1048
1049                 if ( c->valx > 0 ) {
1050                         int     i;
1051
1052                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1053                                 i < c->valx; i++ )
1054                         {
1055                                 if ( *dlip == NULL ) {
1056                                         snprintf( c->msg, sizeof( c->msg ),
1057                                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1058                                                 "invalid index {%d}\n",
1059                                                 c->valx );
1060                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1061                                                 c->log, c->msg, 0 );
1062                                         return 1;
1063                                 }
1064                                 dlip = &(*dlip)->dli_next;
1065                         }
1066                         dli_next = *dlip;
1067
1068                 } else {
1069                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1070                                 *dlip; dlip = &(*dlip)->dli_next )
1071                                 /* goto last */;
1072                 }
1073
1074                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1075
1076                 (*dlip)->dli_oc = oc;
1077                 (*dlip)->dli_ad = ad;
1078                 (*dlip)->dli_member_ad = member_ad;
1079                 (*dlip)->dli_next = dli_next;
1080
1081                 rc = dynlist_build_def_filter( *dlip );
1082
1083                 } break;
1084
1085         case DL_ATTRPAIR: {
1086                 dynlist_info_t          **dlip;
1087                 ObjectClass             *oc = NULL;
1088                 AttributeDescription    *ad = NULL,
1089                                         *member_ad = NULL;
1090                 const char              *text;
1091
1092                 oc = oc_find( "groupOfURLs" );
1093                 if ( oc == NULL ) {
1094                         snprintf( c->msg, sizeof( c->msg ),
1095                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1096                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1097                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1098                                 c->log, c->msg, 0 );
1099                         return 1;
1100                 }
1101
1102                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1103                 if ( rc != LDAP_SUCCESS ) {
1104                         snprintf( c->msg, sizeof( c->msg ),
1105                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1106                                 "unable to find AttributeDescription \"%s\"",
1107                                 c->argv[ 1 ] );
1108                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1109                                 c->log, c->msg, 0 );
1110                         return 1;
1111                 }
1112
1113                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1114                 if ( rc != LDAP_SUCCESS ) {
1115                         snprintf( c->msg, sizeof( c->msg ),
1116                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1117                                 "unable to find AttributeDescription \"%s\"\n",
1118                                 c->argv[ 2 ] );
1119                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1120                                 c->log, c->msg, 0 );
1121                         return 1;
1122                 }
1123
1124                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1125                         snprintf( c->msg, sizeof( c->msg ),
1126                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1127                                 "AttributeDescription \"%s\" "
1128                                 "must be a subtype of \"labeledURI\"",
1129                                 c->argv[ 2 ] );
1130                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1131                                 c->log, c->msg, 0 );
1132                         return 1;
1133                 }
1134
1135                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1136                         *dlip; dlip = &(*dlip)->dli_next )
1137                                 /* goto last */;
1138
1139                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1140
1141                 (*dlip)->dli_oc = oc;
1142                 (*dlip)->dli_ad = ad;
1143                 (*dlip)->dli_member_ad = member_ad;
1144
1145                 rc = dynlist_build_def_filter( *dlip );
1146
1147                 } break;
1148
1149         default:
1150                 rc = 1;
1151                 break;
1152         }
1153
1154         return rc;
1155 }
1156 #endif
1157
1158 static int
1159 dynlist_db_open(
1160         BackendDB       *be )
1161 {
1162         slap_overinst           *on = (slap_overinst *) be->bd_info;
1163         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1164         ObjectClass             *oc = NULL;
1165         AttributeDescription    *ad = NULL;
1166
1167         if ( dli == NULL ) {
1168                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1169                 on->on_bi.bi_private = (void *)dli;
1170         }
1171
1172         for ( ; dli; dli = dli->dli_next ) {
1173                 const char      *text;
1174                 int             rc;
1175
1176                 if ( dli->dli_oc == NULL ) {
1177                         if ( oc == NULL ) {
1178                                 oc = oc_find( "groupOfURLs" );
1179                                 if ( oc == NULL ) {
1180                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: "
1181                                                 "unable to fetch objectClass \"groupOfURLs\".\n",
1182                                                 0, 0, 0 );
1183                                         return 1;
1184                                 }
1185                         }
1186
1187                         dli->dli_oc = oc;
1188                 }
1189
1190                 if ( dli->dli_ad == NULL ) {
1191                         if ( ad == NULL ) {
1192                                 rc = slap_str2ad( "memberURL", &ad, &text );
1193                                 if ( rc != LDAP_SUCCESS ) {
1194                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: "
1195                                                 "unable to fetch attributeDescription \"memberURL\": %d (%s).\n",
1196                                                 rc, text, 0 );
1197                                         return 1;
1198                                 }
1199                         }
1200
1201                         dli->dli_ad = ad;
1202                 }
1203
1204                 rc = dynlist_build_def_filter( dli );
1205                 if ( rc != 0 ) {
1206                         return rc;
1207                 }
1208         }
1209
1210         return 0;
1211 }
1212
1213 static int
1214 dynlist_db_destroy(
1215         BackendDB       *be )
1216 {
1217         slap_overinst   *on = (slap_overinst *) be->bd_info;
1218
1219         if ( on->on_bi.bi_private ) {
1220                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1221                                 *dli_next;
1222
1223                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1224                         dli_next = dli->dli_next;
1225
1226                         ch_free( dli->dli_default_filter.bv_val );
1227                         ch_free( dli );
1228                 }
1229         }
1230
1231         return 0;
1232 }
1233
1234 static slap_overinst dynlist = { { NULL } };
1235
1236 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1237 static
1238 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1239 int
1240 dynlist_initialize(void)
1241 {
1242 #ifndef OL_2_2_COMPAT
1243         int     rc = 0;
1244 #endif
1245
1246         dynlist.on_bi.bi_type = "dynlist";
1247 #ifdef OL_2_2_COMPAT
1248         dynlist.on_bi.bi_db_config = dynlist_db_config;
1249 #else
1250         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1251 #endif
1252         dynlist.on_bi.bi_db_open = dynlist_db_open;
1253         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1254
1255         dynlist.on_response = dynlist_response;
1256
1257 #ifndef OL_2_2_COMPAT
1258         dynlist.on_bi.bi_cf_ocs = dlocs;
1259
1260         rc = config_register_schema( dlcfg, dlocs );
1261         if ( rc ) {
1262                 return rc;
1263         }
1264 #endif
1265
1266         return overlay_register( &dynlist );
1267 }
1268
1269 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1270 int
1271 init_module( int argc, char *argv[] )
1272 {
1273         return dynlist_initialize();
1274 }
1275 #endif
1276
1277 #endif /* SLAPD_OVER_DYNLIST */