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

   1 /* dynlist.c - dynamic list overlay */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2007 The OpenLDAP Foundation.
   6  * Portions Copyright 2004-2005 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 the 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
  19  * for SysNet s.n.c., for inclusion in OpenLDAP Software.
  20  */
  21
  22 #include "portable.h"
  23
  24 #ifdef SLAPD_OVER_DYNLIST
  25
  26 #if LDAP_VENDOR_VERSION_MINOR == X || LDAP_VENDOR_VERSION_MINOR > 3
  27 #if SLAPD_OVER_DYNGROUP != SLAPD_MOD_STATIC
  28 #define TAKEOVER_DYNGROUP
  29 #endif
  30 #else
  31 #if LDAP_VENDOR_VERSION_MINOR < 3
  32 #define OL_2_2_COMPAT
  33 #endif
  34 #endif
  35
  36 #include <stdio.h>
  37
  38 #include <ac/string.h>
  39
  40 #include "slap.h"
  41 #ifndef OL_2_2_COMPAT
  42 #include "config.h"
  43 #endif
  44 #include "lutil.h"
  45
  46 /* FIXME: the code differs if SLAP_OPATTRS is defined or not;
  47  * SLAP_OPATTRS is not defined in 2.2 yet, while this overlay
  48  * expects HEAD code at least later than August 6, 2004. */
  49 /* FIXME: slap_anlist_no_attrs was introduced in 2.3; here it
  50  * is anticipated to allow using this overlay with 2.2. */
  51
  52 #ifdef OL_2_2_COMPAT
  53 static AttributeName anlist_no_attrs[] = {
  54         { BER_BVC( LDAP_NO_ATTRS ), NULL, 0, NULL },
  55         { BER_BVNULL, NULL, 0, NULL }
  56 };
  57
  58 static AttributeName *slap_anlist_no_attrs = anlist_no_attrs;
  59 #endif
  60
  61 typedef struct dynlist_info_t {
  62         ObjectClass             *dli_oc;
  63         AttributeDescription    *dli_ad;
  64         AttributeDescription    *dli_member_ad;
  65         struct berval           dli_default_filter;
  66         struct dynlist_info_t   *dli_next;
  67 } dynlist_info_t;
  68
  69 static dynlist_info_t *
  70 dynlist_is_dynlist( Operation *op, SlapReply *rs )
  71 {
  72         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
  73         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
  74
  75         Attribute       *a;
  76
  77         a = attrs_find( rs->sr_entry->e_attrs, slap_schema.si_ad_objectClass );
  78         if ( a == NULL ) {
  79                 /* FIXME: objectClass must be present; for non-storage
  80                  * backends, like back-ldap, it needs to be added
  81                  * to the requested attributes */
  82                 return NULL;
  83         }
  84
  85         for ( ; dli; dli = dli->dli_next ) {
  86                 if ( value_find_ex( slap_schema.si_ad_objectClass,
  87                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  88                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  89                                 a->a_nvals, &dli->dli_oc->soc_cname,
  90                                 op->o_tmpmemctx ) == 0 )
  91                 {
  92                         return dli;
  93                 }
  94         }
  95
  96         return NULL;
  97 }
  98
  99 static int
 100 dynlist_make_filter( Operation *op, struct berval *oldf, struct berval *newf )
 101 {
 102         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 103         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 104
 105         char            *ptr;
 106
 107         assert( oldf != NULL );
 108         assert( newf != NULL );
 109         assert( !BER_BVISNULL( oldf ) );
 110         assert( !BER_BVISEMPTY( oldf ) );
 111
 112         newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" )
 113                 + dli->dli_oc->soc_cname.bv_len + oldf->bv_len;
 114         newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx );
 115         if ( newf->bv_val == NULL ) {
 116                 return -1;
 117         }
 118         ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" );
 119         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 120         ptr = lutil_strcopy( ptr, "))" );
 121         ptr = lutil_strcopy( ptr, oldf->bv_val );
 122         ptr = lutil_strcopy( ptr, ")" );
 123         newf->bv_len = ptr - newf->bv_val;
 124
 125         return 0;
 126 }
 127
 128 typedef struct dynlist_sc_t {
 129         dynlist_info_t    *dlc_dli;
 130         Entry           *dlc_e;
 131 } dynlist_sc_t;
 132
 133 static int
 134 dynlist_sc_update( Operation *op, SlapReply *rs )
 135 {
 136         Entry                   *e;
 137         Attribute               *a;
 138         int                     opattrs,
 139                                 userattrs;
 140         AccessControlState      acl_state = ACL_STATE_INIT;
 141
 142         dynlist_sc_t            *dlc;
 143
 144         if ( rs->sr_type != REP_SEARCH ) {
 145                 return 0;
 146         }
 147
 148         dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 149         e = dlc->dlc_e;
 150
 151         assert( e != NULL );
 152         assert( rs->sr_entry != NULL );
 153
 154         /* test access to entry */
 155         if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 156                                 NULL, ACL_READ, NULL ) )
 157         {
 158                 goto done;
 159         }
 160
 161         if ( dlc->dlc_dli->dli_member_ad ) {
 162
 163                 /* if access allowed, try to add values, emulating permissive
 164                  * control to silently ignore duplicates */
 165                 if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 166                                         NULL, ACL_READ, NULL ) )
 167                 {
 168                         Modification    mod;
 169                         const char      *text = NULL;
 170                         char            textbuf[1024];
 171                         struct berval   vals[ 2 ], nvals[ 2 ];
 172
 173                         vals[ 0 ] = rs->sr_entry->e_name;
 174                         BER_BVZERO( &vals[ 1 ] );
 175                         nvals[ 0 ] = rs->sr_entry->e_nname;
 176                         BER_BVZERO( &nvals[ 1 ] );
 177
 178                         mod.sm_op = LDAP_MOD_ADD;
 179                         mod.sm_desc = dlc->dlc_dli->dli_member_ad;
 180                         mod.sm_type = dlc->dlc_dli->dli_member_ad->ad_cname;
 181                         mod.sm_values = vals;
 182                         mod.sm_nvalues = nvals;
 183
 184                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 185                                         &text, textbuf, sizeof( textbuf ) );
 186                 }
 187
 188                 goto done;
 189         }
 190
 191 #ifndef SLAP_OPATTRS
 192         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 193         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 194 #else /* SLAP_OPATTRS */
 195         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 196         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 197 #endif /* SLAP_OPATTRS */
 198
 199         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 200                 BerVarray       vals, nvals = NULL;
 201                 int             i, j,
 202                                 is_oc = a->a_desc == slap_schema.si_ad_objectClass;
 203
 204                 /* if attribute is not requested, skip it */
 205                 if ( rs->sr_attrs == NULL ) {
 206                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 207                                 continue;
 208                         }
 209
 210                 } else {
 211                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 212                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 213                                 {
 214                                         continue;
 215                                 }
 216
 217                         } else {
 218                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 219                                 {
 220                                         continue;
 221                                 }
 222                         }
 223                 }
 224
 225                 /* test access to attribute */
 226                 if ( op->ors_attrsonly ) {
 227                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 228                                                 ACL_READ, &acl_state ) )
 229                         {
 230                                 continue;
 231                         }
 232                 }
 233
 234                 /* single-value check: keep first only */
 235                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 236                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 237                                 continue;
 238                         }
 239                 }
 240
 241                 /* test access to attribute */
 242                 for ( i = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ )
 243                         /* just count */ ;
 244
 245                 vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 246                 if ( a->a_nvals != a->a_vals ) {
 247                         nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 248                 }
 249
 250                 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
 251                         if ( is_oc ) {
 252                                 ObjectClass     *soc = oc_bvfind( &a->a_vals[i] );
 253
 254                                 if ( soc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 255                                         continue;
 256                                 }
 257                         }
 258
 259                         if ( access_allowed( op, rs->sr_entry, a->a_desc,
 260                                                 &a->a_nvals[i], ACL_READ, &acl_state ) )
 261                         {
 262                                 vals[j] = a->a_vals[i];
 263                                 if ( nvals ) {
 264                                         nvals[j] = a->a_nvals[i];
 265                                 }
 266                                 j++;
 267                         }
 268                 }
 269
 270                 /* if access allowed, try to add values, emulating permissive
 271                  * control to silently ignore duplicates */
 272                 if ( j != 0 ) {
 273                         Modification    mod;
 274                         const char      *text = NULL;
 275                         char            textbuf[1024];
 276
 277                         BER_BVZERO( &vals[j] );
 278                         if ( nvals ) {
 279                                 BER_BVZERO( &nvals[j] );
 280                         }
 281
 282                         mod.sm_op = LDAP_MOD_ADD;
 283                         mod.sm_desc = a->a_desc;
 284                         mod.sm_type = a->a_desc->ad_cname;
 285                         mod.sm_values = vals;
 286                         mod.sm_nvalues = nvals;
 287
 288                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 289                                         &text, textbuf, sizeof( textbuf ) );
 290                 }
 291
 292                 op->o_tmpfree( vals, op->o_tmpmemctx );
 293                 if ( nvals ) {
 294                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 295                 }
 296         }
 297
 298 done:;
 299         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 300                 entry_free( rs->sr_entry );
 301         }
 302
 303         return 0;
 304 }
 305
 306 static int
 307 dynlist_send_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 308 {
 309         Attribute       *a;
 310         slap_callback   cb;
 311         Operation       o = *op;
 312         SlapReply       r = { REP_SEARCH };
 313         struct berval   *url;
 314         Entry           *e;
 315         slap_mask_t     e_flags;
 316         int             opattrs,
 317                         userattrs;
 318         dynlist_sc_t    dlc = { 0 };
 319
 320         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 321         if ( a == NULL ) {
 322                 /* FIXME: error? */
 323                 return SLAP_CB_CONTINUE;
 324         }
 325
 326         e = entry_dup( rs->sr_entry );
 327         e_flags = rs->sr_flags | ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 328
 329         dlc.dlc_e = e;
 330         dlc.dlc_dli = dli;
 331         cb.sc_private = &dlc;
 332         cb.sc_response = dynlist_sc_update;
 333         cb.sc_cleanup = NULL;
 334         cb.sc_next = NULL;
 335
 336         o.o_callback = &cb;
 337         o.ors_deref = LDAP_DEREF_NEVER;
 338         o.ors_limit = NULL;
 339         o.ors_tlimit = SLAP_NO_LIMIT;
 340         o.ors_slimit = SLAP_NO_LIMIT;
 341
 342 #ifndef SLAP_OPATTRS
 343         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 344         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 345 #else /* SLAP_OPATTRS */
 346         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 347         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 348 #endif /* SLAP_OPATTRS */
 349
 350         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 351                 LDAPURLDesc     *lud = NULL;
 352                 int             i, j;
 353                 struct berval   dn;
 354                 int             rc;
 355
 356                 BER_BVZERO( &o.o_req_dn );
 357                 BER_BVZERO( &o.o_req_ndn );
 358                 o.ors_filter = NULL;
 359                 o.ors_attrs = NULL;
 360                 BER_BVZERO( &o.ors_filterstr );
 361
 362                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 363                         /* FIXME: error? */
 364                         continue;
 365                 }
 366
 367                 if ( lud->lud_host != NULL ) {
 368                         /* FIXME: host not allowed; reject as illegal? */
 369                         Debug( LDAP_DEBUG_ANY, "dynlist_send_entry(\"%s\"): "
 370                                 "illegal URI \"%s\"\n",
 371                                 e->e_name.bv_val, url->bv_val, 0 );
 372                         goto cleanup;
 373                 }
 374
 375                 if ( lud->lud_dn == NULL ) {
 376                         /* note that an empty base is not honored in terms
 377                          * of defaultSearchBase, because select_backend()
 378                          * is not aware of the defaultSearchBase option;
 379                          * this can be useful in case of a database serving
 380                          * the empty suffix */
 381                         BER_BVSTR( &dn, "" );
 382
 383                 } else {
 384                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 385                 }
 386                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 387                 if ( rc != LDAP_SUCCESS ) {
 388                         /* FIXME: error? */
 389                         goto cleanup;
 390                 }
 391                 o.ors_scope = lud->lud_scope;
 392
 393                 if ( dli->dli_member_ad != NULL ) {
 394                         /* if ( lud->lud_attrs != NULL ),
 395                          * the URL should be ignored */
 396                         o.ors_attrs = slap_anlist_no_attrs;
 397
 398                 } else if ( lud->lud_attrs == NULL ) {
 399                         o.ors_attrs = rs->sr_attrs;
 400
 401                 } else {
 402                         for ( i = 0; lud->lud_attrs[i]; i++)
 403                                 /* just count */ ;
 404
 405                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 406                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 407                                 const char      *text = NULL;
 408
 409                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 410                                 o.ors_attrs[j].an_desc = NULL;
 411                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 412                                 /* FIXME: ignore errors... */
 413
 414                                 if ( rs->sr_attrs == NULL ) {
 415                                         if ( o.ors_attrs[j].an_desc != NULL &&
 416                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 417                                         {
 418                                                 continue;
 419                                         }
 420
 421                                 } else {
 422                                         if ( o.ors_attrs[j].an_desc != NULL &&
 423                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 424                                         {
 425                                                 if ( !opattrs && !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 426                                                 {
 427                                                         continue;
 428                                                 }
 429
 430                                         } else {
 431                                                 if ( !userattrs &&
 432                                                                 o.ors_attrs[j].an_desc != NULL &&
 433                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 434                                                 {
 435                                                         continue;
 436                                                 }
 437                                         }
 438                                 }
 439
 440                                 j++;
 441                         }
 442
 443                         if ( j == 0 ) {
 444                                 goto cleanup;
 445                         }
 446
 447                         BER_BVZERO( &o.ors_attrs[j].an_name );
 448                 }
 449
 450                 if ( lud->lud_filter == NULL ) {
 451                         ber_dupbv_x( &o.ors_filterstr,
 452                                         &dli->dli_default_filter, op->o_tmpmemctx );
 453
 454                 } else {
 455                         struct berval   flt;
 456                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 457                         if ( dynlist_make_filter( op, &flt, &o.ors_filterstr ) ) {
 458                                 /* error */
 459                                 goto cleanup;
 460                         }
 461                 }
 462                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 463                 if ( o.ors_filter == NULL ) {
 464                         goto cleanup;
 465                 }
 466
 467                 o.o_bd = select_backend( &o.o_req_ndn, 0, 1 );
 468                 if ( o.o_bd && o.o_bd->be_search ) {
 469 #ifdef SLAP_OPATTRS
 470                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 471 #endif /* SLAP_OPATTRS */
 472                         (void)o.o_bd->be_search( &o, &r );
 473                 }
 474
 475 cleanup:;
 476                 if ( o.ors_filter ) {
 477                         filter_free_x( &o, o.ors_filter );
 478                 }
 479                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 480                                 && o.ors_attrs != slap_anlist_no_attrs )
 481                 {
 482                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 483                 }
 484                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 485                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 486                 }
 487                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 488                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 489                 }
 490                 assert( o.ors_filterstr.bv_val != lud->lud_filter );
 491                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 492                 ldap_free_urldesc( lud );
 493         }
 494
 495         rs->sr_entry = e;
 496         rs->sr_flags = e_flags;
 497
 498         return SLAP_CB_CONTINUE;
 499 }
 500
 501 static int
 502 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 503 {
 504         /* save the entry in the private field of the callback,
 505          * so it doesn't get freed (it's temporary!) */
 506         if ( rs->sr_entry != NULL ) {
 507                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 508                 dlc->dlc_e = rs->sr_entry;
 509                 rs->sr_entry = NULL;
 510         }
 511
 512         return 0;
 513 }
 514
 515 static int
 516 dynlist_compare( Operation *op, SlapReply *rs )
 517 {
 518         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 519         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 520
 521         for ( ; dli != NULL; dli = dli->dli_next ) {
 522                 if ( op->oq_compare.rs_ava->aa_desc == dli->dli_member_ad ) {
 523                         /* This compare is for one of the attributes we're
 524                          * interested in. We'll use slapd's existing dyngroup
 525                          * evaluator to get the answer we want.
 526                          */
 527                         int cache = op->o_do_not_cache;
 528
 529                         op->o_do_not_cache = 1;
 530                         rs->sr_err = backend_group( op, NULL, &op->o_req_ndn,
 531                                 &op->oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 532                         op->o_do_not_cache = cache;
 533                         switch ( rs->sr_err ) {
 534                         case LDAP_SUCCESS:
 535                                 rs->sr_err = LDAP_COMPARE_TRUE;
 536                                 break;
 537
 538                         case LDAP_NO_SUCH_OBJECT:
 539                                 /* NOTE: backend_group() returns noSuchObject
 540                                  * if op_ndn does not exist; however, since
 541                                  * dynamic list expansion means that the
 542                                  * member attribute is virtually present, the
 543                                  * non-existence of the asserted value implies
 544                                  * the assertion is FALSE rather than
 545                                  * UNDEFINED */
 546                                 rs->sr_err = LDAP_COMPARE_FALSE;
 547                                 break;
 548                         }
 549
 550                         return SLAP_CB_CONTINUE;
 551                 }
 552         }
 553
 554         dli = (dynlist_info_t *)on->on_bi.bi_private;
 555         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 556                 Attribute       *a;
 557                 slap_callback   cb;
 558                 Operation       o = *op;
 559                 SlapReply       r = { REP_SEARCH };
 560                 AttributeName   an[2];
 561                 int             rc;
 562                 dynlist_sc_t    dlc = { 0 };
 563                 Entry           *e;
 564
 565                 int cache = op->o_do_not_cache;
 566                 struct berval   op_dn = op->o_dn,
 567                                 op_ndn = op->o_ndn;
 568                 BackendDB       *op_bd = op->o_bd;
 569
 570                 /* fetch the entry as rootdn (a hack to see if it exists
 571                  * and if it has the right objectClass) */
 572                 op->o_do_not_cache = 1;
 573                 op->o_dn = op->o_bd->be_rootdn;
 574                 op->o_ndn = op->o_bd->be_rootndn;
 575                 op->o_bd = select_backend( &op->o_req_ndn, 0, 0 );
 576
 577                 r.sr_err = be_entry_get_rw( op, &op->o_req_ndn,
 578                         dli->dli_oc, NULL, 0, &e );
 579                 if ( e != NULL ) {
 580                         be_entry_release_r( op, e );
 581                 }
 582                 op->o_do_not_cache = cache;
 583                 op->o_dn = op_dn;
 584                 op->o_ndn = op_ndn;
 585                 op->o_bd = op_bd;
 586                 if ( r.sr_err != LDAP_SUCCESS ) {
 587                         continue;
 588                 }
 589
 590                 /* if the entry has the right objectClass, generate
 591                  * the dynamic list and compare */
 592                 dlc.dlc_dli = dli;
 593                 cb.sc_private = &dlc;
 594                 cb.sc_response = dynlist_sc_save_entry;
 595                 cb.sc_cleanup = NULL;
 596                 cb.sc_next = NULL;
 597                 o.o_callback = &cb;
 598
 599                 o.o_tag = LDAP_REQ_SEARCH;
 600                 o.ors_limit = NULL;
 601                 o.ors_tlimit = SLAP_NO_LIMIT;
 602                 o.ors_slimit = SLAP_NO_LIMIT;
 603
 604                 o.o_bd = select_backend( &o.o_req_ndn, 0, 1 );
 605                 if ( !o.o_bd || !o.o_bd->be_search ) {
 606                         return SLAP_CB_CONTINUE;
 607                 }
 608
 609                 BER_BVSTR( &o.ors_filterstr, "(objectClass=*)" );
 610                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 611                 if ( o.ors_filter == NULL ) {
 612                         /* FIXME: error? */
 613                         return SLAP_CB_CONTINUE;
 614                 }
 615
 616                 o.ors_scope = LDAP_SCOPE_BASE;
 617                 o.ors_deref = LDAP_DEREF_NEVER;
 618                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 619                 an[0].an_desc = op->orc_ava->aa_desc;
 620                 BER_BVZERO( &an[1].an_name );
 621                 o.ors_attrs = an;
 622                 o.ors_attrsonly = 0;
 623
 624                 rc = o.o_bd->be_search( &o, &r );
 625                 filter_free_x( &o, o.ors_filter );
 626
 627                 if ( rc != 0 ) {
 628                         return rc;
 629                 }
 630
 631                 if ( dlc.dlc_e != NULL ) {
 632                         r.sr_entry = dlc.dlc_e;
 633                 }
 634
 635                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 636                         /* error? */
 637                         return SLAP_CB_CONTINUE;
 638                 }
 639
 640                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 641                         a != NULL;
 642                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 643                 {
 644                         /* if we're here, we got a match... */
 645                         rs->sr_err = LDAP_COMPARE_FALSE;
 646
 647                         if ( value_find_ex( op->orc_ava->aa_desc,
 648                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 649                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 650                                 a->a_nvals, &op->orc_ava->aa_value, op->o_tmpmemctx ) == 0 )
 651                         {
 652                                 rs->sr_err = LDAP_COMPARE_TRUE;
 653                                 break;
 654                         }
 655                 }
 656
 657                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 658                         entry_free( r.sr_entry );
 659                 }
 660         }
 661
 662         return SLAP_CB_CONTINUE;
 663 }
 664
 665 static int
 666 dynlist_response( Operation *op, SlapReply *rs )
 667 {
 668         dynlist_info_t  *dli;
 669
 670         switch ( op->o_tag ) {
 671         case LDAP_REQ_SEARCH:
 672                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 673                 {
 674                         dli = dynlist_is_dynlist( op, rs );
 675                         if ( dli != NULL ) {
 676                                 return dynlist_send_entry( op, rs, dli );
 677                         }
 678                 }
 679                 break;
 680
 681         case LDAP_REQ_COMPARE:
 682                 switch ( rs->sr_err ) {
 683                 /* NOTE: we waste a few cycles running the dynamic list
 684                  * also when the result is FALSE, which occurs if the
 685                  * dynamic entry itself contains the AVA attribute  */
 686                 /* FIXME: this approach is less than optimal; a dedicated
 687                  * compare op should be implemented, that fetches the
 688                  * entry, checks if it has the appropriate objectClass
 689                  * and, in case, runs a compare thru all the URIs,
 690                  * stopping at the first positive occurrence; see ITS#3756 */
 691                 case LDAP_COMPARE_FALSE:
 692                 case LDAP_NO_SUCH_ATTRIBUTE:
 693                         return dynlist_compare( op, rs );
 694                 }
 695                 break;
 696
 697         default:
 698                 break;
 699         }
 700
 701         return SLAP_CB_CONTINUE;
 702 }
 703
 704 static int
 705 dynlist_build_def_filter( dynlist_info_t *dli )
 706 {
 707         char    *ptr;
 708
 709         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 710                 + dli->dli_oc->soc_cname.bv_len;
 711         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 712         if ( dli->dli_default_filter.bv_val == NULL ) {
 713                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 714                         0, 0, 0 );
 715                 return -1;
 716         }
 717
 718         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 719         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 720         ptr = lutil_strcopy( ptr, "))" );
 721
 722         assert( dli->dli_default_filter.bv_len == ptr - dli->dli_default_filter.bv_val );
 723
 724         return 0;
 725 }
 726
 727 #ifdef OL_2_2_COMPAT
 728 static int
 729 dynlist_db_config(
 730         BackendDB       *be,
 731         const char      *fname,
 732         int             lineno,
 733         int             argc,
 734         char            **argv )
 735 {
 736         slap_overinst   *on = (slap_overinst *)be->bd_info;
 737
 738         int             rc = 0;
 739
 740         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 741                 dynlist_info_t          **dlip;
 742                 ObjectClass             *oc;
 743                 AttributeDescription    *ad = NULL,
 744                                         *member_ad = NULL;
 745                 const char              *text;
 746
 747                 if ( argc < 3 || argc > 4 ) {
 748                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 749                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 750                                 "invalid arg number #%d.\n",
 751                                 fname, lineno, argc );
 752                         return 1;
 753                 }
 754
 755                 oc = oc_find( argv[1] );
 756                 if ( oc == NULL ) {
 757                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 758                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 759                                 "unable to find ObjectClass \"%s\"\n",
 760                                 fname, lineno, argv[ 1 ] );
 761                         return 1;
 762                 }
 763
 764                 rc = slap_str2ad( argv[2], &ad, &text );
 765                 if ( rc != LDAP_SUCCESS ) {
 766                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 767                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 768                                 "unable to find AttributeDescription \"%s\"\n",
 769                                 fname, lineno, argv[2] );
 770                         return 1;
 771                 }
 772
 773                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 774                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 775                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 776                                 "AttributeDescription \"%s\" "
 777                                 "must be a subtype of \"labeledURI\"\n",
 778                                 fname, lineno, argv[2] );
 779                         return 1;
 780                 }
 781
 782                 if ( argc == 4 ) {
 783                         rc = slap_str2ad( argv[3], &member_ad, &text );
 784                         if ( rc != LDAP_SUCCESS ) {
 785                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 786                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 787                                         "unable to find AttributeDescription \"%s\"\n",
 788                                         fname, lineno, argv[3] );
 789                                 return 1;
 790                         }
 791                 }
 792
 793                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 794                         *dlip; dlip = &(*dlip)->dli_next )
 795                 {
 796                         /* The check on objectClass may be relaxed */
 797 #if 0
 798                         if ( (*dlip)->dli_oc == oc ) {
 799                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 800                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 801                                         "objectClass \"%s\" already mapped.\n",
 802                                         fname, lineno, oc->soc_cname.bv_val );
 803                                 return 1;
 804                         }
 805 #endif
 806
 807                         if ( (*dlip)->dli_ad == ad ) {
 808                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 809                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 810                                         "URL attributeDescription \"%s\" already mapped.\n",
 811                                         fname, lineno, ad->ad_cname.bv_val );
 812                                 return 1;
 813                         }
 814
 815                         if ( member_ad != NULL && (*dlip)->dli_member_ad == member_ad ) {
 816                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 817                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 818                                         "member attributeDescription \"%s\" already mapped.\n",
 819                                         fname, lineno, member_ad->ad_cname.bv_val );
 820                                 return 1;
 821                         }
 822                 }
 823
 824                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 825                 (*dlip)->dli_oc = oc;
 826                 (*dlip)->dli_ad = ad;
 827                 (*dlip)->dli_member_ad = member_ad;
 828
 829                 if ( dynlist_build_def_filter( *dlip ) ) {
 830                         ch_free( *dlip );
 831                         *dlip = NULL;
 832                         return 1;
 833                 }
 834
 835         /* allow dyngroup syntax */
 836         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
 837                 dynlist_info_t          **dlip;
 838                 ObjectClass             *oc;
 839                 AttributeDescription    *ad = NULL,
 840                                         *member_ad = NULL;
 841                 const char              *text;
 842
 843                 if ( argc != 3 ) {
 844                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 845                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 846                                 "invalid arg number #%d.\n",
 847                                 fname, lineno, argc );
 848                         return 1;
 849                 }
 850
 851                 oc = oc_find( "groupOfURLs" );
 852                 if ( oc == NULL ) {
 853                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 854                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 855                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
 856                                 fname, lineno, 0 );
 857                         return 1;
 858                 }
 859
 860                 rc = slap_str2ad( argv[1], &member_ad, &text );
 861                 if ( rc != LDAP_SUCCESS ) {
 862                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 863                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 864                                 "unable to find AttributeDescription \"%s\"\n",
 865                                 fname, lineno, argv[1] );
 866                         return 1;
 867                 }
 868
 869                 rc = slap_str2ad( argv[2], &ad, &text );
 870                 if ( rc != LDAP_SUCCESS ) {
 871                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 872                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 873                                 "unable to find AttributeDescription \"%s\"\n",
 874                                 fname, lineno, argv[2] );
 875                         return 1;
 876                 }
 877
 878                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 879                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 880                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 881                                 "AttributeDescription \"%s\" "
 882                                 "must be a subtype of \"labeledURI\"\n",
 883                                 fname, lineno, argv[2] );
 884                         return 1;
 885                 }
 886
 887
 888                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 889                         *dlip; dlip = &(*dlip)->dli_next )
 890                 {
 891 #if 0
 892                         /* The check on objectClass may be relaxed */
 893                         if ( (*dlip)->dli_oc == oc ) {
 894                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 895                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 896                                         "objectClass \"%s\" already mapped.\n",
 897                                         fname, lineno, oc->soc_cname.bv_val );
 898                                 return 1;
 899                         }
 900 #endif
 901
 902                         if ( (*dlip)->dli_ad == ad ) {
 903                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 904                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 905                                         "URL attributeDescription \"%s\" already mapped.\n",
 906                                         fname, lineno, ad->ad_cname.bv_val );
 907                                 return 1;
 908                         }
 909
 910                         if ( member_ad != NULL && (*dlip)->dli_member_ad == member_ad ) {
 911                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 912                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 913                                         "member attributeDescription \"%s\" already mapped.\n",
 914                                         fname, lineno, member_ad->ad_cname.bv_val );
 915                                 return 1;
 916                         }
 917                 }
 918
 919                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 920                 (*dlip)->dli_oc = oc;
 921                 (*dlip)->dli_ad = ad;
 922                 (*dlip)->dli_member_ad = member_ad;
 923
 924                 if ( dynlist_build_def_filter( *dlip ) ) {
 925                         ch_free( *dlip );
 926                         *dlip = NULL;
 927                         return 1;
 928                 }
 929
 930         } else {
 931                 rc = SLAP_CONF_UNKNOWN;
 932         }
 933
 934         return rc;
 935 }
 936
 937 #else
 938 enum {
 939         DL_ATTRSET = 1,
 940         DL_ATTRPAIR,
 941         DL_ATTRPAIR_COMPAT,
 942         DL_LAST
 943 };
 944
 945 static ConfigDriver     dl_cfgen;
 946
 947 static ConfigTable dlcfg[] = {
 948         { "dynlist-attrset", "group-oc> <URL-ad> <member-ad",
 949                 3, 4, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
 950                 "( OLcfgOvAt:8.1 NAME 'olcDLattrSet' "
 951                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
 952                         "EQUALITY caseIgnoreMatch "
 953                         "SYNTAX OMsDirectoryString "
 954                         "X-ORDERED 'VALUES' )",
 955                         NULL, NULL },
 956         { "dynlist-attrpair", "member-ad> <URL-ad",
 957                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
 958                         NULL, NULL, NULL },
 959 #ifdef TAKEOVER_DYNGROUP
 960         { "attrpair", "member-ad> <URL-ad",
 961                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
 962                         NULL, NULL, NULL },
 963 #endif
 964         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
 965 };
 966
 967 static ConfigOCs dlocs[] = {
 968         { "( OLcfgOvOc:8.1 "
 969                 "NAME 'olcDynamicList' "
 970                 "DESC 'Dynamic list configuration' "
 971                 "SUP olcOverlayConfig "
 972                 "MAY olcDLattrSet )",
 973                 Cft_Overlay, dlcfg, NULL, NULL },
 974         { NULL, 0, NULL }
 975 };
 976
 977 static int
 978 dl_cfgen( ConfigArgs *c )
 979 {
 980         slap_overinst   *on = (slap_overinst *)c->bi;
 981         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 982
 983         int             rc = 0, i;
 984
 985         if ( c->op == SLAP_CONFIG_EMIT ) {
 986                 switch( c->type ) {
 987                 case DL_ATTRSET:
 988                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
 989                                 struct berval   bv;
 990                                 char            *ptr = c->msg;
 991
 992                                 assert( dli->dli_oc != NULL );
 993                                 assert( dli->dli_ad != NULL );
 994
 995                                 ptr += snprintf( c->msg, sizeof( c->msg ),
 996                                         SLAP_X_ORDERED_FMT "%s %s", i,
 997                                         dli->dli_oc->soc_cname.bv_val,
 998                                         dli->dli_ad->ad_cname.bv_val );
 999
1000                                 if ( dli->dli_member_ad != NULL ) {
1001                                         ptr[ 0 ] = ' ';
1002                                         ptr++;
1003                                         ptr = lutil_strcopy( ptr, dli->dli_member_ad->ad_cname.bv_val );
1004                                 }
1005
1006                                 bv.bv_val = c->msg;
1007                                 bv.bv_len = ptr - bv.bv_val;
1008                                 value_add_one( &c->rvalue_vals, &bv );
1009                         }
1010                         break;
1011
1012                 case DL_ATTRPAIR_COMPAT:
1013                 case DL_ATTRPAIR:
1014                         rc = 1;
1015                         break;
1016
1017                 default:
1018                         rc = 1;
1019                         break;
1020                 }
1021
1022                 return rc;
1023
1024         } else if ( c->op == LDAP_MOD_DELETE ) {
1025                 switch( c->type ) {
1026                 case DL_ATTRSET:
1027                         if ( c->valx < 0 ) {
1028                                 dynlist_info_t  *dli_next;
1029
1030                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1031                                         dli_next = dli->dli_next;
1032
1033                                         ch_free( dli->dli_default_filter.bv_val );
1034                                         ch_free( dli );
1035                                 }
1036
1037                                 on->on_bi.bi_private = NULL;
1038
1039                         } else {
1040                                 dynlist_info_t  **dlip;
1041
1042                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1043                                         i < c->valx; i++ )
1044                                 {
1045                                         if ( *dlip == NULL ) {
1046                                                 return 1;
1047                                         }
1048                                         dlip = &(*dlip)->dli_next;
1049                                 }
1050
1051                                 dli = *dlip;
1052                                 *dlip = dli->dli_next;
1053                                 ch_free( dli->dli_default_filter.bv_val );
1054                                 ch_free( dli );
1055
1056                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1057                         }
1058                         break;
1059
1060                 case DL_ATTRPAIR_COMPAT:
1061                 case DL_ATTRPAIR:
1062                         rc = 1;
1063                         break;
1064
1065                 default:
1066                         rc = 1;
1067                         break;
1068                 }
1069
1070                 return 1;       /* FIXME */
1071         }
1072
1073         switch( c->type ) {
1074         case DL_ATTRSET: {
1075                 dynlist_info_t          **dlip,
1076                                         *dli_next = NULL;
1077                 ObjectClass             *oc = NULL;
1078                 AttributeDescription    *ad = NULL,
1079                                         *member_ad = NULL;
1080                 const char              *text;
1081
1082                 oc = oc_find( c->argv[ 1 ] );
1083                 if ( oc == NULL ) {
1084                         snprintf( c->msg, sizeof( c->msg ),
1085                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1086                                 "unable to find ObjectClass \"%s\"",
1087                                 c->argv[ 1 ] );
1088                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1089                                 c->log, c->msg, 0 );
1090                         return 1;
1091                 }
1092
1093                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1094                 if ( rc != LDAP_SUCCESS ) {
1095                         snprintf( c->msg, sizeof( c->msg ),
1096                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1097                                 "unable to find AttributeDescription \"%s\"",
1098                                 c->argv[ 2 ] );
1099                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1100                                 c->log, c->msg, 0 );
1101                         return 1;
1102                 }
1103
1104                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1105                         snprintf( c->msg, sizeof( c->msg ),
1106                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1107                                 "AttributeDescription \"%s\" "
1108                                 "must be a subtype of \"labeledURI\"",
1109                                 c->argv[ 2 ] );
1110                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1111                                 c->log, c->msg, 0 );
1112                         return 1;
1113                 }
1114
1115                 if ( c->argc == 4 ) {
1116                         rc = slap_str2ad( c->argv[ 3 ], &member_ad, &text );
1117                         if ( rc != LDAP_SUCCESS ) {
1118                                 snprintf( c->msg, sizeof( c->msg ),
1119                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1120                                         "unable to find AttributeDescription \"%s\"\n",
1121                                         c->argv[ 3 ] );
1122                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1123                                         c->log, c->msg, 0 );
1124                                 return 1;
1125                         }
1126                 }
1127
1128                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1129                         *dlip; dlip = &(*dlip)->dli_next )
1130                 {
1131                         /* The check on objectClass may be relaxed */
1132 #if 0
1133                         if ( (*dlip)->dli_oc == oc ) {
1134                                 snprintf( c->msg, sizeof( c->msg ),
1135                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1136                                         "objectClass \"%s\" already mapped.\n",
1137                                         oc->soc_cname.bv_val );
1138                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1139                                         c->log, c->msg, 0 );
1140                                 return 1;
1141                         }
1142 #endif
1143
1144                         if ( (*dlip)->dli_ad == ad ) {
1145                                 snprintf( c->msg, sizeof( c->msg ),
1146                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1147                                         "URL attributeDescription \"%s\" already mapped.\n",
1148                                         ad->ad_cname.bv_val );
1149                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1150                                         c->log, c->msg, 0 );
1151                                 return 1;
1152                         }
1153
1154                         if ( member_ad != NULL && (*dlip)->dli_member_ad == member_ad ) {
1155                                 snprintf( c->msg, sizeof( c->msg ),
1156                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1157                                         "member attributeDescription \"%s\" already mapped.\n",
1158                                         member_ad->ad_cname.bv_val );
1159                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1160                                         c->log, c->msg, 0 );
1161                                 return 1;
1162                         }
1163                 }
1164
1165                 if ( c->valx > 0 ) {
1166                         int     i;
1167
1168                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1169                                 i < c->valx; i++ )
1170                         {
1171                                 if ( *dlip == NULL ) {
1172                                         snprintf( c->msg, sizeof( c->msg ),
1173                                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1174                                                 "invalid index {%d}\n",
1175                                                 c->valx );
1176                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1177                                                 c->log, c->msg, 0 );
1178                                         return 1;
1179                                 }
1180                                 dlip = &(*dlip)->dli_next;
1181                         }
1182                         dli_next = *dlip;
1183
1184                 } else {
1185                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1186                                 *dlip; dlip = &(*dlip)->dli_next )
1187                                 /* goto last */;
1188                 }
1189
1190                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1191
1192                 (*dlip)->dli_oc = oc;
1193                 (*dlip)->dli_ad = ad;
1194                 (*dlip)->dli_member_ad = member_ad;
1195                 (*dlip)->dli_next = dli_next;
1196
1197                 rc = dynlist_build_def_filter( *dlip );
1198
1199                 } break;
1200
1201         case DL_ATTRPAIR_COMPAT:
1202                 snprintf( c->msg, sizeof( c->msg ),
1203                         "warning: \"attrpair\" only supported for limited "
1204                         "backward compatibility with overlay \"dyngroup\"" );
1205                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1206                 /* fallthru */
1207
1208         case DL_ATTRPAIR: {
1209                 dynlist_info_t          **dlip;
1210                 ObjectClass             *oc = NULL;
1211                 AttributeDescription    *ad = NULL,
1212                                         *member_ad = NULL;
1213                 const char              *text;
1214
1215                 oc = oc_find( "groupOfURLs" );
1216                 if ( oc == NULL ) {
1217                         snprintf( c->msg, sizeof( c->msg ),
1218                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1219                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1220                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1221                                 c->log, c->msg, 0 );
1222                         return 1;
1223                 }
1224
1225                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1226                 if ( rc != LDAP_SUCCESS ) {
1227                         snprintf( c->msg, sizeof( c->msg ),
1228                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1229                                 "unable to find AttributeDescription \"%s\"",
1230                                 c->argv[ 1 ] );
1231                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1232                                 c->log, c->msg, 0 );
1233                         return 1;
1234                 }
1235
1236                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1237                 if ( rc != LDAP_SUCCESS ) {
1238                         snprintf( c->msg, sizeof( c->msg ),
1239                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1240                                 "unable to find AttributeDescription \"%s\"\n",
1241                                 c->argv[ 2 ] );
1242                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1243                                 c->log, c->msg, 0 );
1244                         return 1;
1245                 }
1246
1247                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1248                         snprintf( c->msg, sizeof( c->msg ),
1249                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1250                                 "AttributeDescription \"%s\" "
1251                                 "must be a subtype of \"labeledURI\"",
1252                                 c->argv[ 2 ] );
1253                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1254                                 c->log, c->msg, 0 );
1255                         return 1;
1256                 }
1257
1258                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1259                         *dlip; dlip = &(*dlip)->dli_next )
1260                 {
1261                         /* The check on objectClass may be relaxed */
1262 #if 0
1263                         if ( (*dlip)->dli_oc == oc ) {
1264                                 snprintf( c->msg, sizeof( c->msg ),
1265                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1266                                         "objectClass \"%s\" already mapped.\n",
1267                                         oc->soc_cname.bv_val );
1268                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1269                                         c->log, c->msg, 0 );
1270                                 return 1;
1271                         }
1272 #endif
1273
1274                         if ( (*dlip)->dli_ad == ad ) {
1275                                 snprintf( c->msg, sizeof( c->msg ),
1276                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1277                                         "URL attributeDescription \"%s\" already mapped.\n",
1278                                         ad->ad_cname.bv_val );
1279                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1280                                         c->log, c->msg, 0 );
1281                                 return 1;
1282                         }
1283
1284                         if ( member_ad != NULL && (*dlip)->dli_member_ad == member_ad ) {
1285                                 snprintf( c->msg, sizeof( c->msg ),
1286                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1287                                         "member attributeDescription \"%s\" already mapped.\n",
1288                                         member_ad->ad_cname.bv_val );
1289                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1290                                         c->log, c->msg, 0 );
1291                                 return 1;
1292                         }
1293                 }
1294
1295                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1296
1297                 (*dlip)->dli_oc = oc;
1298                 (*dlip)->dli_ad = ad;
1299                 (*dlip)->dli_member_ad = member_ad;
1300
1301                 rc = dynlist_build_def_filter( *dlip );
1302
1303                 } break;
1304
1305         default:
1306                 rc = 1;
1307                 break;
1308         }
1309
1310         return rc;
1311 }
1312 #endif
1313
1314 static int
1315 dynlist_db_open(
1316         BackendDB       *be )
1317 {
1318         slap_overinst           *on = (slap_overinst *) be->bd_info;
1319         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1320         ObjectClass             *oc = NULL;
1321         AttributeDescription    *ad = NULL;
1322
1323         if ( dli == NULL ) {
1324                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1325                 on->on_bi.bi_private = (void *)dli;
1326         }
1327
1328         for ( ; dli; dli = dli->dli_next ) {
1329                 const char      *text;
1330                 int             rc;
1331
1332                 if ( dli->dli_oc == NULL ) {
1333                         if ( oc == NULL ) {
1334                                 oc = oc_find( "groupOfURLs" );
1335                                 if ( oc == NULL ) {
1336                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: "
1337                                                 "unable to fetch objectClass \"groupOfURLs\".\n",
1338                                                 0, 0, 0 );
1339                                         return 1;
1340                                 }
1341                         }
1342
1343                         dli->dli_oc = oc;
1344                 }
1345
1346                 if ( dli->dli_ad == NULL ) {
1347                         if ( ad == NULL ) {
1348                                 rc = slap_str2ad( "memberURL", &ad, &text );
1349                                 if ( rc != LDAP_SUCCESS ) {
1350                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: "
1351                                                 "unable to fetch attributeDescription \"memberURL\": %d (%s).\n",
1352                                                 rc, text, 0 );
1353                                         return 1;
1354                                 }
1355                         }
1356
1357                         dli->dli_ad = ad;
1358                 }
1359
1360                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1361                         rc = dynlist_build_def_filter( dli );
1362                         if ( rc != 0 ) {
1363                                 return rc;
1364                         }
1365                 }
1366         }
1367
1368         return 0;
1369 }
1370
1371 static int
1372 dynlist_db_destroy(
1373         BackendDB       *be )
1374 {
1375         slap_overinst   *on = (slap_overinst *) be->bd_info;
1376
1377         if ( on->on_bi.bi_private ) {
1378                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1379                                 *dli_next;
1380
1381                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1382                         dli_next = dli->dli_next;
1383
1384                         ch_free( dli->dli_default_filter.bv_val );
1385                         ch_free( dli );
1386                 }
1387         }
1388
1389         return 0;
1390 }
1391
1392 static slap_overinst    dynlist = { { NULL } };
1393 #ifdef TAKEOVER_DYNGROUP
1394 static char             *obsolete_names[] = {
1395         "dyngroup",
1396         NULL
1397 };
1398 #endif
1399
1400 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1401 static
1402 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1403 int
1404 dynlist_initialize(void)
1405 {
1406 #ifndef OL_2_2_COMPAT
1407         int     rc = 0;
1408 #endif
1409
1410         dynlist.on_bi.bi_type = "dynlist";
1411
1412 #ifdef TAKEOVER_DYNGROUP
1413         /* makes dynlist incompatible with dyngroup */
1414         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1415 #endif
1416
1417 #ifdef OL_2_2_COMPAT
1418         dynlist.on_bi.bi_db_config = dynlist_db_config;
1419 #else
1420         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1421 #endif
1422         dynlist.on_bi.bi_db_open = dynlist_db_open;
1423         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1424
1425         dynlist.on_response = dynlist_response;
1426
1427 #ifndef OL_2_2_COMPAT
1428         dynlist.on_bi.bi_cf_ocs = dlocs;
1429
1430         rc = config_register_schema( dlcfg, dlocs );
1431         if ( rc ) {
1432                 return rc;
1433         }
1434 #endif
1435
1436         return overlay_register( &dynlist );
1437 }
1438
1439 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1440 int
1441 init_module( int argc, char *argv[] )
1442 {
1443         return dynlist_initialize();
1444 }
1445 #endif
1446
1447 #endif /* SLAPD_OVER_DYNLIST */