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 static AttributeDescription *ad_dgIdentity, *ad_dgAuthz;
  62
  63 typedef struct dynlist_info_t {
  64         ObjectClass             *dli_oc;
  65         AttributeDescription    *dli_ad;
  66         AttributeDescription    *dli_member_ad;
  67         struct berval           dli_default_filter;
  68         struct dynlist_info_t   *dli_next;
  69 } dynlist_info_t;
  70
  71 static dynlist_info_t *
  72 dynlist_is_dynlist_next( Operation *op, SlapReply *rs, dynlist_info_t *old_dli )
  73 {
  74         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
  75         dynlist_info_t  *dli;
  76
  77         Attribute       *a;
  78
  79         if ( old_dli == NULL ) {
  80                 dli = (dynlist_info_t *)on->on_bi.bi_private;
  81
  82         } else {
  83                 dli = old_dli->dli_next;
  84         }
  85
  86         a = attrs_find( rs->sr_entry->e_attrs, slap_schema.si_ad_objectClass );
  87         if ( a == NULL ) {
  88                 /* FIXME: objectClass must be present; for non-storage
  89                  * backends, like back-ldap, it needs to be added
  90                  * to the requested attributes */
  91                 return NULL;
  92         }
  93
  94         for ( ; dli; dli = dli->dli_next ) {
  95                 if ( attr_valfind( a,
  96                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  97                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  98                                 &dli->dli_oc->soc_cname, NULL,
  99                                 op->o_tmpmemctx ) == 0 )
 100                 {
 101                         return dli;
 102                 }
 103         }
 104
 105         return NULL;
 106 }
 107
 108 static int
 109 dynlist_make_filter( Operation *op, struct berval *oldf, struct berval *newf )
 110 {
 111         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 112         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 113
 114         char            *ptr;
 115
 116         assert( oldf != NULL );
 117         assert( newf != NULL );
 118         assert( !BER_BVISNULL( oldf ) );
 119         assert( !BER_BVISEMPTY( oldf ) );
 120
 121         newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" )
 122                 + dli->dli_oc->soc_cname.bv_len + oldf->bv_len;
 123         newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx );
 124         if ( newf->bv_val == NULL ) {
 125                 return -1;
 126         }
 127         ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" );
 128         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 129         ptr = lutil_strcopy( ptr, "))" );
 130         ptr = lutil_strcopy( ptr, oldf->bv_val );
 131         ptr = lutil_strcopy( ptr, ")" );
 132         newf->bv_len = ptr - newf->bv_val;
 133
 134         return 0;
 135 }
 136
 137 typedef struct dynlist_sc_t {
 138         dynlist_info_t    *dlc_dli;
 139         Entry           *dlc_e;
 140 } dynlist_sc_t;
 141
 142 static int
 143 dynlist_sc_update( Operation *op, SlapReply *rs )
 144 {
 145         Entry                   *e;
 146         Attribute               *a;
 147         int                     opattrs,
 148                                 userattrs;
 149         AccessControlState      acl_state = ACL_STATE_INIT;
 150
 151         dynlist_sc_t            *dlc;
 152
 153         if ( rs->sr_type != REP_SEARCH ) {
 154                 return 0;
 155         }
 156
 157         dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 158         e = dlc->dlc_e;
 159
 160         assert( e != NULL );
 161         assert( rs->sr_entry != NULL );
 162
 163         /* test access to entry */
 164         if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 165                                 NULL, ACL_READ, NULL ) )
 166         {
 167                 goto done;
 168         }
 169
 170         if ( dlc->dlc_dli->dli_member_ad ) {
 171
 172                 /* if access allowed, try to add values, emulating permissive
 173                  * control to silently ignore duplicates */
 174                 if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 175                                         NULL, ACL_READ, NULL ) )
 176                 {
 177                         Modification    mod;
 178                         const char      *text = NULL;
 179                         char            textbuf[1024];
 180                         struct berval   vals[ 2 ], nvals[ 2 ];
 181
 182                         vals[ 0 ] = rs->sr_entry->e_name;
 183                         BER_BVZERO( &vals[ 1 ] );
 184                         nvals[ 0 ] = rs->sr_entry->e_nname;
 185                         BER_BVZERO( &nvals[ 1 ] );
 186
 187                         mod.sm_op = LDAP_MOD_ADD;
 188                         mod.sm_desc = dlc->dlc_dli->dli_member_ad;
 189                         mod.sm_type = dlc->dlc_dli->dli_member_ad->ad_cname;
 190                         mod.sm_values = vals;
 191                         mod.sm_nvalues = nvals;
 192                         mod.sm_numvals = 1;
 193
 194                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 195                                         &text, textbuf, sizeof( textbuf ) );
 196                 }
 197
 198                 goto done;
 199         }
 200
 201 #ifndef SLAP_OPATTRS
 202         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 203         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 204 #else /* SLAP_OPATTRS */
 205         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 206         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 207 #endif /* SLAP_OPATTRS */
 208
 209         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 210                 BerVarray       vals, nvals = NULL;
 211                 int             i, j,
 212                                 is_oc = a->a_desc == slap_schema.si_ad_objectClass;
 213
 214                 /* if attribute is not requested, skip it */
 215                 if ( rs->sr_attrs == NULL ) {
 216                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 217                                 continue;
 218                         }
 219
 220                 } else {
 221                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 222                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 223                                 {
 224                                         continue;
 225                                 }
 226
 227                         } else {
 228                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 229                                 {
 230                                         continue;
 231                                 }
 232                         }
 233                 }
 234
 235                 /* test access to attribute */
 236                 if ( op->ors_attrsonly ) {
 237                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 238                                                 ACL_READ, &acl_state ) )
 239                         {
 240                                 continue;
 241                         }
 242                 }
 243
 244                 /* single-value check: keep first only */
 245                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 246                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 247                                 continue;
 248                         }
 249                 }
 250
 251                 /* test access to attribute */
 252                 i = a->a_numvals;
 253
 254                 vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 255                 if ( a->a_nvals != a->a_vals ) {
 256                         nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 257                 }
 258
 259                 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
 260                         if ( is_oc ) {
 261                                 ObjectClass     *soc = oc_bvfind( &a->a_vals[i] );
 262
 263                                 if ( soc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 264                                         continue;
 265                                 }
 266                         }
 267
 268                         if ( access_allowed( op, rs->sr_entry, a->a_desc,
 269                                                 &a->a_nvals[i], ACL_READ, &acl_state ) )
 270                         {
 271                                 vals[j] = a->a_vals[i];
 272                                 if ( nvals ) {
 273                                         nvals[j] = a->a_nvals[i];
 274                                 }
 275                                 j++;
 276                         }
 277                 }
 278
 279                 /* if access allowed, try to add values, emulating permissive
 280                  * control to silently ignore duplicates */
 281                 if ( j != 0 ) {
 282                         Modification    mod;
 283                         const char      *text = NULL;
 284                         char            textbuf[1024];
 285
 286                         BER_BVZERO( &vals[j] );
 287                         if ( nvals ) {
 288                                 BER_BVZERO( &nvals[j] );
 289                         }
 290
 291                         mod.sm_op = LDAP_MOD_ADD;
 292                         mod.sm_desc = a->a_desc;
 293                         mod.sm_type = a->a_desc->ad_cname;
 294                         mod.sm_values = vals;
 295                         mod.sm_nvalues = nvals;
 296                         mod.sm_numvals = j;
 297
 298                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 299                                         &text, textbuf, sizeof( textbuf ) );
 300                 }
 301
 302                 op->o_tmpfree( vals, op->o_tmpmemctx );
 303                 if ( nvals ) {
 304                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 305                 }
 306         }
 307
 308 done:;
 309         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 310                 entry_free( rs->sr_entry );
 311                 rs->sr_entry = NULL;
 312                 rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
 313         }
 314
 315         return 0;
 316 }
 317
 318 static int
 319 dynlist_prepare_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 320 {
 321         Attribute       *a, *id = NULL;
 322         slap_callback   cb;
 323         Operation       o = *op;
 324         SlapReply       r = { REP_SEARCH };
 325         struct berval   *url;
 326         Entry           *e;
 327         slap_mask_t     e_flags;
 328         int             opattrs,
 329                         userattrs;
 330         dynlist_sc_t    dlc = { 0 };
 331
 332         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 333         if ( a == NULL ) {
 334                 /* FIXME: error? */
 335                 return SLAP_CB_CONTINUE;
 336         }
 337
 338 #ifndef SLAP_OPATTRS
 339         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 340         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 341 #else /* SLAP_OPATTRS */
 342         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 343         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 344 #endif /* SLAP_OPATTRS */
 345
 346         /* Don't generate member list if it wasn't requested */
 347         if ( dli->dli_member_ad && !userattrs && !ad_inlist( dli->dli_member_ad, rs->sr_attrs ) ) {
 348                 return SLAP_CB_CONTINUE;
 349         }
 350
 351         if ( ad_dgIdentity && ( id = attrs_find( rs->sr_entry->e_attrs, ad_dgIdentity ))) {
 352                 Attribute *authz = NULL;
 353
 354                 /* if not rootdn and dgAuthz is present,
 355                  * check if user can be authorized as dgIdentity */
 356                 if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 357                         && ( authz = attrs_find( rs->sr_entry->e_attrs, ad_dgAuthz ) ) )
 358                 {
 359                         if ( slap_sasl_matches( op, authz->a_nvals,
 360                                 &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 361                         {
 362                                 return SLAP_CB_CONTINUE;
 363                         }
 364                 }
 365
 366                 o.o_dn = id->a_vals[0];
 367                 o.o_ndn = id->a_nvals[0];
 368                 o.o_groups = NULL;
 369         }
 370
 371         if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
 372                 e = entry_dup( rs->sr_entry );
 373         } else {
 374                 e = rs->sr_entry;
 375         }
 376         e_flags = rs->sr_flags | ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 377
 378         dlc.dlc_e = e;
 379         dlc.dlc_dli = dli;
 380         cb.sc_private = &dlc;
 381         cb.sc_response = dynlist_sc_update;
 382         cb.sc_cleanup = NULL;
 383         cb.sc_next = NULL;
 384
 385         o.o_callback = &cb;
 386         o.ors_deref = LDAP_DEREF_NEVER;
 387         o.ors_limit = NULL;
 388         o.ors_tlimit = SLAP_NO_LIMIT;
 389         o.ors_slimit = SLAP_NO_LIMIT;
 390
 391         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 392                 LDAPURLDesc     *lud = NULL;
 393                 int             i, j;
 394                 struct berval   dn;
 395                 int             rc;
 396
 397                 BER_BVZERO( &o.o_req_dn );
 398                 BER_BVZERO( &o.o_req_ndn );
 399                 o.ors_filter = NULL;
 400                 o.ors_attrs = NULL;
 401                 BER_BVZERO( &o.ors_filterstr );
 402
 403                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 404                         /* FIXME: error? */
 405                         continue;
 406                 }
 407
 408                 if ( lud->lud_host != NULL ) {
 409                         /* FIXME: host not allowed; reject as illegal? */
 410                         Debug( LDAP_DEBUG_ANY, "dynlist_prepare_entry(\"%s\"): "
 411                                 "illegal URI \"%s\"\n",
 412                                 e->e_name.bv_val, url->bv_val, 0 );
 413                         goto cleanup;
 414                 }
 415
 416                 if ( lud->lud_dn == NULL ) {
 417                         /* note that an empty base is not honored in terms
 418                          * of defaultSearchBase, because select_backend()
 419                          * is not aware of the defaultSearchBase option;
 420                          * this can be useful in case of a database serving
 421                          * the empty suffix */
 422                         BER_BVSTR( &dn, "" );
 423
 424                 } else {
 425                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 426                 }
 427                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 428                 if ( rc != LDAP_SUCCESS ) {
 429                         /* FIXME: error? */
 430                         goto cleanup;
 431                 }
 432                 o.ors_scope = lud->lud_scope;
 433
 434                 if ( dli->dli_member_ad != NULL ) {
 435                         /* if ( lud->lud_attrs != NULL ),
 436                          * the URL should be ignored */
 437                         o.ors_attrs = slap_anlist_no_attrs;
 438
 439                 } else if ( lud->lud_attrs == NULL ) {
 440                         o.ors_attrs = rs->sr_attrs;
 441
 442                 } else {
 443                         for ( i = 0; lud->lud_attrs[i]; i++)
 444                                 /* just count */ ;
 445
 446                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 447                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 448                                 const char      *text = NULL;
 449
 450                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 451                                 o.ors_attrs[j].an_desc = NULL;
 452                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 453                                 /* FIXME: ignore errors... */
 454
 455                                 if ( rs->sr_attrs == NULL ) {
 456                                         if ( o.ors_attrs[j].an_desc != NULL &&
 457                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 458                                         {
 459                                                 continue;
 460                                         }
 461
 462                                 } else {
 463                                         if ( o.ors_attrs[j].an_desc != NULL &&
 464                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 465                                         {
 466                                                 if ( !opattrs && !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 467                                                 {
 468                                                         continue;
 469                                                 }
 470
 471                                         } else {
 472                                                 if ( !userattrs &&
 473                                                                 o.ors_attrs[j].an_desc != NULL &&
 474                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 475                                                 {
 476                                                         continue;
 477                                                 }
 478                                         }
 479                                 }
 480
 481                                 j++;
 482                         }
 483
 484                         if ( j == 0 ) {
 485                                 goto cleanup;
 486                         }
 487
 488                         BER_BVZERO( &o.ors_attrs[j].an_name );
 489                 }
 490
 491                 if ( lud->lud_filter == NULL ) {
 492                         ber_dupbv_x( &o.ors_filterstr,
 493                                         &dli->dli_default_filter, op->o_tmpmemctx );
 494
 495                 } else {
 496                         struct berval   flt;
 497                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 498                         if ( dynlist_make_filter( op, &flt, &o.ors_filterstr ) ) {
 499                                 /* error */
 500                                 goto cleanup;
 501                         }
 502                 }
 503                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 504                 if ( o.ors_filter == NULL ) {
 505                         goto cleanup;
 506                 }
 507
 508                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 509                 if ( o.o_bd && o.o_bd->be_search ) {
 510 #ifdef SLAP_OPATTRS
 511                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 512 #endif /* SLAP_OPATTRS */
 513                         (void)o.o_bd->be_search( &o, &r );
 514                 }
 515
 516 cleanup:;
 517                 if ( id ) {
 518                         slap_op_groups_free( &o );
 519                 }
 520                 if ( o.ors_filter ) {
 521                         filter_free_x( &o, o.ors_filter );
 522                 }
 523                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 524                                 && o.ors_attrs != slap_anlist_no_attrs )
 525                 {
 526                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 527                 }
 528                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 529                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 530                 }
 531                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 532                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 533                 }
 534                 assert( BER_BVISNULL( &o.ors_filterstr )
 535                         || o.ors_filterstr.bv_val != lud->lud_filter );
 536                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 537                 ldap_free_urldesc( lud );
 538         }
 539
 540         rs->sr_entry = e;
 541         rs->sr_flags = e_flags;
 542
 543         return SLAP_CB_CONTINUE;
 544 }
 545
 546 static int
 547 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 548 {
 549         /* save the entry in the private field of the callback,
 550          * so it doesn't get freed (it's temporary!) */
 551         if ( rs->sr_entry != NULL ) {
 552                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 553                 dlc->dlc_e = rs->sr_entry;
 554                 rs->sr_entry = NULL;
 555         }
 556
 557         return 0;
 558 }
 559
 560 static int
 561 dynlist_compare( Operation *op, SlapReply *rs )
 562 {
 563         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 564         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 565         Operation o = *op;
 566         Entry *e = NULL;
 567
 568         for ( ; dli != NULL; dli = dli->dli_next ) {
 569                 if ( op->oq_compare.rs_ava->aa_desc == dli->dli_member_ad ) {
 570                         /* This compare is for one of the attributes we're
 571                          * interested in. We'll use slapd's existing dyngroup
 572                          * evaluator to get the answer we want.
 573                          */
 574                         BerVarray id = NULL, authz = NULL;
 575
 576                         o.o_do_not_cache = 1;
 577
 578                         if ( ad_dgIdentity && backend_attribute( &o, NULL, &o.o_req_ndn,
 579                                 ad_dgIdentity, &id, ACL_READ ) == LDAP_SUCCESS )
 580                         {
 581                                 /* if not rootdn and dgAuthz is present,
 582                                  * check if user can be authorized as dgIdentity */
 583                                 if ( ad_dgAuthz && !BER_BVISEMPTY( id ) && !be_isroot( op )
 584                                         && backend_attribute( &o, NULL, &o.o_req_ndn,
 585                                                 ad_dgAuthz, &authz, ACL_READ ) == LDAP_SUCCESS )
 586                                 {
 587
 588                                         rs->sr_err = slap_sasl_matches( op, authz,
 589                                                 &o.o_ndn, &o.o_ndn );
 590                                         ber_bvarray_free_x( authz, op->o_tmpmemctx );
 591                                         if ( rs->sr_err != LDAP_SUCCESS ) {
 592                                                 goto done;
 593                                         }
 594                                 }
 595
 596                                 o.o_dn = *id;
 597                                 o.o_ndn = *id;
 598                                 o.o_groups = NULL; /* authz changed, invalidate cached groups */
 599                         }
 600
 601                         rs->sr_err = backend_group( &o, NULL, &o.o_req_ndn,
 602                                 &o.oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 603                         switch ( rs->sr_err ) {
 604                         case LDAP_SUCCESS:
 605                                 rs->sr_err = LDAP_COMPARE_TRUE;
 606                                 break;
 607
 608                         case LDAP_NO_SUCH_OBJECT:
 609                                 /* NOTE: backend_group() returns noSuchObject
 610                                  * if op_ndn does not exist; however, since
 611                                  * dynamic list expansion means that the
 612                                  * member attribute is virtually present, the
 613                                  * non-existence of the asserted value implies
 614                                  * the assertion is FALSE rather than
 615                                  * UNDEFINED */
 616                                 rs->sr_err = LDAP_COMPARE_FALSE;
 617                                 break;
 618                         }
 619
 620 done:;
 621                         if ( id ) ber_bvarray_free_x( id, o.o_tmpmemctx );
 622
 623                         return SLAP_CB_CONTINUE;
 624                 }
 625         }
 626
 627         if ( overlay_entry_get_ov( &o, &o.o_req_ndn, NULL, NULL, 0, &e, on ) !=
 628                 LDAP_SUCCESS || e == NULL )
 629         {
 630                 return SLAP_CB_CONTINUE;
 631         }
 632
 633         if ( ad_dgIdentity ) {
 634                 Attribute *id = attrs_find( e->e_attrs, ad_dgIdentity );
 635                 if ( id ) {
 636                         Attribute *authz;
 637
 638                         /* if not rootdn and dgAuthz is present,
 639                          * check if user can be authorized as dgIdentity */
 640                         if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 641                                 && ( authz = attrs_find( e->e_attrs, ad_dgAuthz ) ) )
 642                         {
 643                                 if ( slap_sasl_matches( op, authz->a_nvals,
 644                                         &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 645                                 {
 646                                         goto release;
 647                                 }
 648                         }
 649
 650                         o.o_dn = id->a_vals[0];
 651                         o.o_ndn = id->a_nvals[0];
 652                         o.o_groups = NULL;
 653                 }
 654         }
 655
 656         dli = (dynlist_info_t *)on->on_bi.bi_private;
 657         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 658                 Attribute       *a;
 659                 slap_callback   cb;
 660                 SlapReply       r = { REP_SEARCH };
 661                 AttributeName   an[2];
 662                 int             rc;
 663                 dynlist_sc_t    dlc = { 0 };
 664
 665                 if ( !is_entry_objectclass_or_sub( e, dli->dli_oc ))
 666                         continue;
 667
 668                 /* if the entry has the right objectClass, generate
 669                  * the dynamic list and compare */
 670                 dlc.dlc_dli = dli;
 671                 cb.sc_private = &dlc;
 672                 cb.sc_response = dynlist_sc_save_entry;
 673                 cb.sc_cleanup = NULL;
 674                 cb.sc_next = NULL;
 675                 o.o_callback = &cb;
 676
 677                 o.o_tag = LDAP_REQ_SEARCH;
 678                 o.ors_limit = NULL;
 679                 o.ors_tlimit = SLAP_NO_LIMIT;
 680                 o.ors_slimit = SLAP_NO_LIMIT;
 681
 682                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 683                 if ( !o.o_bd || !o.o_bd->be_search ) {
 684                         goto release;
 685                 }
 686
 687                 o.ors_filterstr = *slap_filterstr_objectClass_pres;
 688                 o.ors_filter = (Filter *) slap_filter_objectClass_pres;
 689
 690                 o.ors_scope = LDAP_SCOPE_BASE;
 691                 o.ors_deref = LDAP_DEREF_NEVER;
 692                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 693                 an[0].an_desc = op->orc_ava->aa_desc;
 694                 BER_BVZERO( &an[1].an_name );
 695                 o.ors_attrs = an;
 696                 o.ors_attrsonly = 0;
 697
 698                 o.o_acl_priv = ACL_COMPARE;
 699
 700                 rc = o.o_bd->be_search( &o, &r );
 701
 702                 if ( o.o_dn.bv_val != op->o_dn.bv_val ) {
 703                         slap_op_groups_free( &o );
 704                 }
 705
 706                 if ( rc != 0 ) {
 707                         goto release;
 708                 }
 709
 710                 if ( dlc.dlc_e != NULL ) {
 711                         r.sr_entry = dlc.dlc_e;
 712                 }
 713
 714                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 715                         /* error? */
 716                         goto release;
 717                 }
 718
 719                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 720                         a != NULL;
 721                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 722                 {
 723                         /* if we're here, we got a match... */
 724                         rs->sr_err = LDAP_COMPARE_FALSE;
 725
 726                         if ( attr_valfind( a,
 727                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 728                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 729                                 &op->orc_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
 730                         {
 731                                 rs->sr_err = LDAP_COMPARE_TRUE;
 732                                 break;
 733                         }
 734                 }
 735
 736                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 737                         entry_free( r.sr_entry );
 738                 }
 739         }
 740
 741 release:;
 742         if ( e != NULL ) {
 743                 overlay_entry_release_ov( &o, e, 0, on );
 744         }
 745
 746         return SLAP_CB_CONTINUE;
 747 }
 748
 749 static int
 750 dynlist_response( Operation *op, SlapReply *rs )
 751 {
 752         dynlist_info_t  *dli;
 753
 754         switch ( op->o_tag ) {
 755         case LDAP_REQ_SEARCH:
 756                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 757                 {
 758                         int     rc = LDAP_OTHER;
 759
 760                         for ( dli = dynlist_is_dynlist_next( op, rs, NULL );
 761                                 dli;
 762                                 dli = dynlist_is_dynlist_next( op, rs, dli ) )
 763                         {
 764                                 rc = dynlist_prepare_entry( op, rs, dli );
 765                         }
 766
 767                         if ( rc != LDAP_OTHER ) {
 768                                 return rc;
 769                         }
 770                 }
 771                 break;
 772
 773         case LDAP_REQ_COMPARE:
 774                 switch ( rs->sr_err ) {
 775                 /* NOTE: we waste a few cycles running the dynamic list
 776                  * also when the result is FALSE, which occurs if the
 777                  * dynamic entry itself contains the AVA attribute  */
 778                 /* FIXME: this approach is less than optimal; a dedicated
 779                  * compare op should be implemented, that fetches the
 780                  * entry, checks if it has the appropriate objectClass
 781                  * and, in case, runs a compare thru all the URIs,
 782                  * stopping at the first positive occurrence; see ITS#3756 */
 783                 case LDAP_COMPARE_FALSE:
 784                 case LDAP_NO_SUCH_ATTRIBUTE:
 785                         return dynlist_compare( op, rs );
 786                 }
 787                 break;
 788
 789         default:
 790                 break;
 791         }
 792
 793         return SLAP_CB_CONTINUE;
 794 }
 795
 796 static int
 797 dynlist_build_def_filter( dynlist_info_t *dli )
 798 {
 799         char    *ptr;
 800
 801         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 802                 + dli->dli_oc->soc_cname.bv_len;
 803         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 804         if ( dli->dli_default_filter.bv_val == NULL ) {
 805                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 806                         0, 0, 0 );
 807                 return -1;
 808         }
 809
 810         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 811         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 812         ptr = lutil_strcopy( ptr, "))" );
 813
 814         assert( dli->dli_default_filter.bv_len == ptr - dli->dli_default_filter.bv_val );
 815
 816         return 0;
 817 }
 818
 819 #ifdef OL_2_2_COMPAT
 820 static int
 821 dynlist_db_config(
 822         BackendDB       *be,
 823         const char      *fname,
 824         int             lineno,
 825         int             argc,
 826         char            **argv )
 827 {
 828         slap_overinst   *on = (slap_overinst *)be->bd_info;
 829
 830         int             rc = 0;
 831
 832         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 833                 dynlist_info_t          **dlip;
 834                 ObjectClass             *oc;
 835                 AttributeDescription    *ad = NULL,
 836                                         *member_ad = NULL;
 837                 const char              *text;
 838
 839                 if ( argc < 3 || argc > 4 ) {
 840                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 841                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 842                                 "invalid arg number #%d.\n",
 843                                 fname, lineno, argc );
 844                         return 1;
 845                 }
 846
 847                 oc = oc_find( argv[1] );
 848                 if ( oc == NULL ) {
 849                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 850                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 851                                 "unable to find ObjectClass \"%s\"\n",
 852                                 fname, lineno, argv[ 1 ] );
 853                         return 1;
 854                 }
 855
 856                 rc = slap_str2ad( argv[2], &ad, &text );
 857                 if ( rc != LDAP_SUCCESS ) {
 858                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 859                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 860                                 "unable to find AttributeDescription \"%s\"\n",
 861                                 fname, lineno, argv[2] );
 862                         return 1;
 863                 }
 864
 865                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 866                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 867                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 868                                 "AttributeDescription \"%s\" "
 869                                 "must be a subtype of \"labeledURI\"\n",
 870                                 fname, lineno, argv[2] );
 871                         return 1;
 872                 }
 873
 874                 if ( argc == 4 ) {
 875                         rc = slap_str2ad( argv[3], &member_ad, &text );
 876                         if ( rc != LDAP_SUCCESS ) {
 877                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 878                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 879                                         "unable to find AttributeDescription \"%s\"\n",
 880                                         fname, lineno, argv[3] );
 881                                 return 1;
 882                         }
 883                 }
 884
 885                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 886                         *dlip; dlip = &(*dlip)->dli_next )
 887                 {
 888                         /* The same URL attribute / member attribute pair
 889                          * cannot be repeated */
 890                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 891                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 892                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 893                                         "URL attributeDescription \"%s\" already mapped.\n",
 894                                         fname, lineno, ad->ad_cname.bv_val );
 895 #if 0
 896                                 /* make it a warning... */
 897                                 return 1;
 898 #endif
 899                         }
 900                 }
 901
 902                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 903                 (*dlip)->dli_oc = oc;
 904                 (*dlip)->dli_ad = ad;
 905                 (*dlip)->dli_member_ad = member_ad;
 906
 907                 if ( dynlist_build_def_filter( *dlip ) ) {
 908                         ch_free( *dlip );
 909                         *dlip = NULL;
 910                         return 1;
 911                 }
 912
 913         /* allow dyngroup syntax */
 914         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
 915                 dynlist_info_t          **dlip;
 916                 ObjectClass             *oc;
 917                 AttributeDescription    *ad = NULL,
 918                                         *member_ad = NULL;
 919                 const char              *text;
 920
 921                 if ( argc != 3 ) {
 922                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 923                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 924                                 "invalid arg number #%d.\n",
 925                                 fname, lineno, argc );
 926                         return 1;
 927                 }
 928
 929                 oc = oc_find( "groupOfURLs" );
 930                 if ( oc == NULL ) {
 931                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 932                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 933                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
 934                                 fname, lineno, 0 );
 935                         return 1;
 936                 }
 937
 938                 rc = slap_str2ad( argv[1], &member_ad, &text );
 939                 if ( rc != LDAP_SUCCESS ) {
 940                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 941                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 942                                 "unable to find AttributeDescription \"%s\"\n",
 943                                 fname, lineno, argv[1] );
 944                         return 1;
 945                 }
 946
 947                 rc = slap_str2ad( argv[2], &ad, &text );
 948                 if ( rc != LDAP_SUCCESS ) {
 949                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 950                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 951                                 "unable to find AttributeDescription \"%s\"\n",
 952                                 fname, lineno, argv[2] );
 953                         return 1;
 954                 }
 955
 956                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 957                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 958                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 959                                 "AttributeDescription \"%s\" "
 960                                 "must be a subtype of \"labeledURI\"\n",
 961                                 fname, lineno, argv[2] );
 962                         return 1;
 963                 }
 964
 965                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 966                         *dlip; dlip = &(*dlip)->dli_next )
 967                 {
 968                         /* The same URL attribute / member attribute pair
 969                          * cannot be repeated */
 970                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 971                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 972                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 973                                         "URL attributeDescription \"%s\" already mapped.\n",
 974                                         fname, lineno, ad->ad_cname.bv_val );
 975 #if 0
 976                                 /* make it a warning... */
 977                                 return 1;
 978 #endif
 979                         }
 980                 }
 981
 982                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 983                 (*dlip)->dli_oc = oc;
 984                 (*dlip)->dli_ad = ad;
 985                 (*dlip)->dli_member_ad = member_ad;
 986
 987                 if ( dynlist_build_def_filter( *dlip ) ) {
 988                         ch_free( *dlip );
 989                         *dlip = NULL;
 990                         return 1;
 991                 }
 992
 993         } else {
 994                 rc = SLAP_CONF_UNKNOWN;
 995         }
 996
 997         return rc;
 998 }
 999
1000 #else
1001 enum {
1002         DL_ATTRSET = 1,
1003         DL_ATTRPAIR,
1004         DL_ATTRPAIR_COMPAT,
1005         DL_LAST
1006 };
1007
1008 static ConfigDriver     dl_cfgen;
1009
1010 static ConfigTable dlcfg[] = {
1011         { "dynlist-attrset", "group-oc> <URL-ad> <member-ad",
1012                 3, 4, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
1013                 "( OLcfgOvAt:8.1 NAME 'olcDLattrSet' "
1014                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
1015                         "EQUALITY caseIgnoreMatch "
1016                         "SYNTAX OMsDirectoryString "
1017                         "X-ORDERED 'VALUES' )",
1018                         NULL, NULL },
1019         { "dynlist-attrpair", "member-ad> <URL-ad",
1020                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
1021                         NULL, NULL, NULL },
1022 #ifdef TAKEOVER_DYNGROUP
1023         { "attrpair", "member-ad> <URL-ad",
1024                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
1025                         NULL, NULL, NULL },
1026 #endif
1027         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1028 };
1029
1030 static ConfigOCs dlocs[] = {
1031         { "( OLcfgOvOc:8.1 "
1032                 "NAME 'olcDynamicList' "
1033                 "DESC 'Dynamic list configuration' "
1034                 "SUP olcOverlayConfig "
1035                 "MAY olcDLattrSet )",
1036                 Cft_Overlay, dlcfg, NULL, NULL },
1037         { NULL, 0, NULL }
1038 };
1039
1040 static int
1041 dl_cfgen( ConfigArgs *c )
1042 {
1043         slap_overinst   *on = (slap_overinst *)c->bi;
1044         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
1045
1046         int             rc = 0, i;
1047
1048         if ( c->op == SLAP_CONFIG_EMIT ) {
1049                 switch( c->type ) {
1050                 case DL_ATTRSET:
1051                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
1052                                 struct berval   bv;
1053                                 char            *ptr = c->cr_msg;
1054
1055                                 assert( dli->dli_oc != NULL );
1056                                 assert( dli->dli_ad != NULL );
1057
1058                                 ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ),
1059                                         SLAP_X_ORDERED_FMT "%s %s", i,
1060                                         dli->dli_oc->soc_cname.bv_val,
1061                                         dli->dli_ad->ad_cname.bv_val );
1062
1063                                 if ( dli->dli_member_ad != NULL ) {
1064                                         ptr[ 0 ] = ' ';
1065                                         ptr++;
1066                                         ptr = lutil_strcopy( ptr, dli->dli_member_ad->ad_cname.bv_val );
1067                                 }
1068
1069                                 bv.bv_val = c->cr_msg;
1070                                 bv.bv_len = ptr - bv.bv_val;
1071                                 value_add_one( &c->rvalue_vals, &bv );
1072                         }
1073                         break;
1074
1075                 case DL_ATTRPAIR_COMPAT:
1076                 case DL_ATTRPAIR:
1077                         rc = 1;
1078                         break;
1079
1080                 default:
1081                         rc = 1;
1082                         break;
1083                 }
1084
1085                 return rc;
1086
1087         } else if ( c->op == LDAP_MOD_DELETE ) {
1088                 switch( c->type ) {
1089                 case DL_ATTRSET:
1090                         if ( c->valx < 0 ) {
1091                                 dynlist_info_t  *dli_next;
1092
1093                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1094                                         dli_next = dli->dli_next;
1095
1096                                         ch_free( dli->dli_default_filter.bv_val );
1097                                         ch_free( dli );
1098                                 }
1099
1100                                 on->on_bi.bi_private = NULL;
1101
1102                         } else {
1103                                 dynlist_info_t  **dlip;
1104
1105                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1106                                         i < c->valx; i++ )
1107                                 {
1108                                         if ( *dlip == NULL ) {
1109                                                 return 1;
1110                                         }
1111                                         dlip = &(*dlip)->dli_next;
1112                                 }
1113
1114                                 dli = *dlip;
1115                                 *dlip = dli->dli_next;
1116                                 ch_free( dli->dli_default_filter.bv_val );
1117                                 ch_free( dli );
1118
1119                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1120                         }
1121                         break;
1122
1123                 case DL_ATTRPAIR_COMPAT:
1124                 case DL_ATTRPAIR:
1125                         rc = 1;
1126                         break;
1127
1128                 default:
1129                         rc = 1;
1130                         break;
1131                 }
1132
1133                 return rc;
1134         }
1135
1136         switch( c->type ) {
1137         case DL_ATTRSET: {
1138                 dynlist_info_t          **dlip,
1139                                         *dli_next = NULL;
1140                 ObjectClass             *oc = NULL;
1141                 AttributeDescription    *ad = NULL,
1142                                         *member_ad = NULL;
1143                 const char              *text;
1144
1145                 oc = oc_find( c->argv[ 1 ] );
1146                 if ( oc == NULL ) {
1147                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1148                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1149                                 "unable to find ObjectClass \"%s\"",
1150                                 c->argv[ 1 ] );
1151                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1152                                 c->log, c->cr_msg, 0 );
1153                         return 1;
1154                 }
1155
1156                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1157                 if ( rc != LDAP_SUCCESS ) {
1158                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1159                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1160                                 "unable to find AttributeDescription \"%s\"",
1161                                 c->argv[ 2 ] );
1162                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1163                                 c->log, c->cr_msg, 0 );
1164                         return 1;
1165                 }
1166
1167                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1168                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1169                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1170                                 "AttributeDescription \"%s\" "
1171                                 "must be a subtype of \"labeledURI\"",
1172                                 c->argv[ 2 ] );
1173                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1174                                 c->log, c->cr_msg, 0 );
1175                         return 1;
1176                 }
1177
1178                 if ( c->argc == 4 ) {
1179                         rc = slap_str2ad( c->argv[ 3 ], &member_ad, &text );
1180                         if ( rc != LDAP_SUCCESS ) {
1181                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1182                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1183                                         "unable to find AttributeDescription \"%s\"\n",
1184                                         c->argv[ 3 ] );
1185                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1186                                         c->log, c->cr_msg, 0 );
1187                                 return 1;
1188                         }
1189                 }
1190
1191                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1192                         *dlip; dlip = &(*dlip)->dli_next )
1193                 {
1194                         /* The same URL attribute / member attribute pair
1195                          * cannot be repeated */
1196                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1197                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1198                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1199                                         "URL attributeDescription \"%s\" already mapped.\n",
1200                                         ad->ad_cname.bv_val );
1201                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1202                                         c->log, c->cr_msg, 0 );
1203 #if 0
1204                                 /* make it a warning... */
1205                                 return 1;
1206 #endif
1207                         }
1208                 }
1209
1210                 if ( c->valx > 0 ) {
1211                         int     i;
1212
1213                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1214                                 i < c->valx; i++ )
1215                         {
1216                                 if ( *dlip == NULL ) {
1217                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1218                                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1219                                                 "invalid index {%d}\n",
1220                                                 c->valx );
1221                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1222                                                 c->log, c->cr_msg, 0 );
1223                                         return 1;
1224                                 }
1225                                 dlip = &(*dlip)->dli_next;
1226                         }
1227                         dli_next = *dlip;
1228
1229                 } else {
1230                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1231                                 *dlip; dlip = &(*dlip)->dli_next )
1232                                 /* goto last */;
1233                 }
1234
1235                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1236
1237                 (*dlip)->dli_oc = oc;
1238                 (*dlip)->dli_ad = ad;
1239                 (*dlip)->dli_member_ad = member_ad;
1240                 (*dlip)->dli_next = dli_next;
1241
1242                 rc = dynlist_build_def_filter( *dlip );
1243
1244                 } break;
1245
1246         case DL_ATTRPAIR_COMPAT:
1247                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1248                         "warning: \"attrpair\" only supported for limited "
1249                         "backward compatibility with overlay \"dyngroup\"" );
1250                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
1251                 /* fallthru */
1252
1253         case DL_ATTRPAIR: {
1254                 dynlist_info_t          **dlip;
1255                 ObjectClass             *oc = NULL;
1256                 AttributeDescription    *ad = NULL,
1257                                         *member_ad = NULL;
1258                 const char              *text;
1259
1260                 oc = oc_find( "groupOfURLs" );
1261                 if ( oc == NULL ) {
1262                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1263                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1264                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1265                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1266                                 c->log, c->cr_msg, 0 );
1267                         return 1;
1268                 }
1269
1270                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1271                 if ( rc != LDAP_SUCCESS ) {
1272                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1273                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1274                                 "unable to find AttributeDescription \"%s\"",
1275                                 c->argv[ 1 ] );
1276                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1277                                 c->log, c->cr_msg, 0 );
1278                         return 1;
1279                 }
1280
1281                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1282                 if ( rc != LDAP_SUCCESS ) {
1283                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1284                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1285                                 "unable to find AttributeDescription \"%s\"\n",
1286                                 c->argv[ 2 ] );
1287                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1288                                 c->log, c->cr_msg, 0 );
1289                         return 1;
1290                 }
1291
1292                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1293                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1294                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1295                                 "AttributeDescription \"%s\" "
1296                                 "must be a subtype of \"labeledURI\"",
1297                                 c->argv[ 2 ] );
1298                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1299                                 c->log, c->cr_msg, 0 );
1300                         return 1;
1301                 }
1302
1303                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1304                         *dlip; dlip = &(*dlip)->dli_next )
1305                 {
1306                         /* The same URL attribute / member attribute pair
1307                          * cannot be repeated */
1308                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1309                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1310                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1311                                         "URL attributeDescription \"%s\" already mapped.\n",
1312                                         ad->ad_cname.bv_val );
1313                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1314                                         c->log, c->cr_msg, 0 );
1315 #if 0
1316                                 /* make it a warning... */
1317                                 return 1;
1318 #endif
1319                         }
1320                 }
1321
1322                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1323
1324                 (*dlip)->dli_oc = oc;
1325                 (*dlip)->dli_ad = ad;
1326                 (*dlip)->dli_member_ad = member_ad;
1327
1328                 rc = dynlist_build_def_filter( *dlip );
1329
1330                 } break;
1331
1332         default:
1333                 rc = 1;
1334                 break;
1335         }
1336
1337         return rc;
1338 }
1339 #endif
1340
1341 static int
1342 dynlist_db_open(
1343         BackendDB       *be,
1344         ConfigReply     *cr )
1345 {
1346         slap_overinst           *on = (slap_overinst *) be->bd_info;
1347         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1348         ObjectClass             *oc = NULL;
1349         AttributeDescription    *ad = NULL;
1350         const char      *text;
1351         int rc;
1352
1353         if ( dli == NULL ) {
1354                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1355                 on->on_bi.bi_private = (void *)dli;
1356         }
1357
1358         for ( ; dli; dli = dli->dli_next ) {
1359                 if ( dli->dli_oc == NULL ) {
1360                         if ( oc == NULL ) {
1361                                 oc = oc_find( "groupOfURLs" );
1362                                 if ( oc == NULL ) {
1363                                         sprintf( cr->msg, "unable to fetch objectClass \"groupOfURLs\"" );
1364                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1365                                         return 1;
1366                                 }
1367                         }
1368
1369                         dli->dli_oc = oc;
1370                 }
1371
1372                 if ( dli->dli_ad == NULL ) {
1373                         if ( ad == NULL ) {
1374                                 rc = slap_str2ad( "memberURL", &ad, &text );
1375                                 if ( rc != LDAP_SUCCESS ) {
1376                                         sprintf( cr->msg, "unable to fetch attributeDescription \"memberURL\": %d (%s)",
1377                                                 rc, text );
1378                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1379                                         return 1;
1380                                 }
1381                         }
1382
1383                         dli->dli_ad = ad;
1384                 }
1385
1386                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1387                         rc = dynlist_build_def_filter( dli );
1388                         if ( rc != 0 ) {
1389                                 return rc;
1390                         }
1391                 }
1392         }
1393
1394         rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text );
1395         if ( rc != LDAP_SUCCESS ) {
1396                 snprintf( cr->msg, sizeof( cr->msg),
1397                         "unable to fetch attributeDescription \"dgIdentity\": %d (%s)",
1398                         rc, text );
1399                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1400                 /* Just a warning */
1401         }
1402
1403         rc = slap_str2ad( "dgAuthz", &ad_dgAuthz, &text );
1404         if ( rc != LDAP_SUCCESS ) {
1405                 snprintf( cr->msg, sizeof( cr->msg),
1406                         "unable to fetch attributeDescription \"dgAuthz\": %d (%s)",
1407                         rc, text );
1408                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1409                 /* Just a warning */
1410         }
1411
1412         return 0;
1413 }
1414
1415 static int
1416 dynlist_db_destroy(
1417         BackendDB       *be,
1418         ConfigReply     *cr )
1419 {
1420         slap_overinst   *on = (slap_overinst *) be->bd_info;
1421
1422         if ( on->on_bi.bi_private ) {
1423                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1424                                 *dli_next;
1425
1426                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1427                         dli_next = dli->dli_next;
1428
1429                         ch_free( dli->dli_default_filter.bv_val );
1430                         ch_free( dli );
1431                 }
1432         }
1433
1434         return 0;
1435 }
1436
1437 static slap_overinst    dynlist = { { NULL } };
1438 #ifdef TAKEOVER_DYNGROUP
1439 static char             *obsolete_names[] = {
1440         "dyngroup",
1441         NULL
1442 };
1443 #endif
1444
1445 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1446 static
1447 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1448 int
1449 dynlist_initialize(void)
1450 {
1451 #ifndef OL_2_2_COMPAT
1452         int     rc = 0;
1453 #endif
1454
1455         dynlist.on_bi.bi_type = "dynlist";
1456
1457 #ifdef TAKEOVER_DYNGROUP
1458         /* makes dynlist incompatible with dyngroup */
1459         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1460 #endif
1461
1462 #ifdef OL_2_2_COMPAT
1463         dynlist.on_bi.bi_db_config = dynlist_db_config;
1464 #else
1465         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1466 #endif
1467         dynlist.on_bi.bi_db_open = dynlist_db_open;
1468         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1469
1470         dynlist.on_response = dynlist_response;
1471
1472 #ifndef OL_2_2_COMPAT
1473         dynlist.on_bi.bi_cf_ocs = dlocs;
1474
1475         rc = config_register_schema( dlcfg, dlocs );
1476         if ( rc ) {
1477                 return rc;
1478         }
1479 #endif
1480
1481         return overlay_register( &dynlist );
1482 }
1483
1484 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1485 int
1486 init_module( int argc, char *argv[] )
1487 {
1488         return dynlist_initialize();
1489 }
1490 #endif
1491
1492 #endif /* SLAPD_OVER_DYNLIST */