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 2003-2010 The OpenLDAP Foundation.
   6  * Portions Copyright 2004-2005 Pierangelo Masarati.
   7  * Portions Copyright 2008 Emmanuel Dreyfus.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18 /* ACKNOWLEDGEMENTS:
  19  * This work was initially developed by Pierangelo Masarati
  20  * for SysNet s.n.c., for inclusion in OpenLDAP Software.
  21  */
  22
  23 #include "portable.h"
  24
  25 #ifdef SLAPD_OVER_DYNLIST
  26
  27 #if LDAP_VENDOR_VERSION_MINOR == X || LDAP_VENDOR_VERSION_MINOR > 3
  28 #if SLAPD_OVER_DYNGROUP != SLAPD_MOD_STATIC
  29 #define TAKEOVER_DYNGROUP
  30 #endif
  31 #else
  32 #if LDAP_VENDOR_VERSION_MINOR < 3
  33 #define OL_2_2_COMPAT
  34 #endif
  35 #endif
  36
  37 #include <stdio.h>
  38
  39 #include <ac/string.h>
  40
  41 #include "slap.h"
  42 #ifndef OL_2_2_COMPAT
  43 #include "config.h"
  44 #endif
  45 #include "lutil.h"
  46
  47 /* FIXME: the code differs if SLAP_OPATTRS is defined or not;
  48  * SLAP_OPATTRS is not defined in 2.2 yet, while this overlay
  49  * expects HEAD code at least later than August 6, 2004. */
  50 /* FIXME: slap_anlist_no_attrs was introduced in 2.3; here it
  51  * is anticipated to allow using this overlay with 2.2. */
  52
  53 #ifdef OL_2_2_COMPAT
  54 static AttributeName anlist_no_attrs[] = {
  55         { BER_BVC( LDAP_NO_ATTRS ), NULL, 0, NULL },
  56         { BER_BVNULL, NULL, 0, NULL }
  57 };
  58
  59 static AttributeName *slap_anlist_no_attrs = anlist_no_attrs;
  60 #endif
  61
  62 static AttributeDescription *ad_dgIdentity, *ad_dgAuthz;
  63
  64 typedef struct dynlist_map_t {
  65         AttributeDescription    *dlm_member_ad;
  66         AttributeDescription    *dlm_mapped_ad;
  67         struct dynlist_map_t    *dlm_next;
  68 } dynlist_map_t;
  69
  70 typedef struct dynlist_info_t {
  71         ObjectClass             *dli_oc;
  72         AttributeDescription    *dli_ad;
  73         struct dynlist_map_t    *dli_dlm;
  74         struct berval           dli_uri;
  75         LDAPURLDesc             *dli_lud;
  76         struct berval           dli_uri_nbase;
  77         Filter                  *dli_uri_filter;
  78         struct berval           dli_default_filter;
  79         struct dynlist_info_t   *dli_next;
  80 } dynlist_info_t;
  81
  82 #define DYNLIST_USAGE \
  83         "\"dynlist-attrset <oc> [uri] <URL-ad> [[<mapped-ad>:]<member-ad> ...]\": "
  84
  85 static dynlist_info_t *
  86 dynlist_is_dynlist_next( Operation *op, SlapReply *rs, dynlist_info_t *old_dli )
  87 {
  88         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
  89         dynlist_info_t  *dli;
  90
  91         Attribute       *a;
  92
  93         if ( old_dli == NULL ) {
  94                 dli = (dynlist_info_t *)on->on_bi.bi_private;
  95
  96         } else {
  97                 dli = old_dli->dli_next;
  98         }
  99
 100         a = attrs_find( rs->sr_entry->e_attrs, slap_schema.si_ad_objectClass );
 101         if ( a == NULL ) {
 102                 /* FIXME: objectClass must be present; for non-storage
 103                  * backends, like back-ldap, it needs to be added
 104                  * to the requested attributes */
 105                 return NULL;
 106         }
 107
 108         for ( ; dli; dli = dli->dli_next ) {
 109                 if ( dli->dli_lud != NULL ) {
 110                         /* check base and scope */
 111                         if ( !BER_BVISNULL( &dli->dli_uri_nbase )
 112                                 && !dnIsSuffixScope( &rs->sr_entry->e_nname,
 113                                         &dli->dli_uri_nbase,
 114                                         dli->dli_lud->lud_scope ) )
 115                         {
 116                                 continue;
 117                         }
 118
 119                         /* check filter */
 120                         if ( dli->dli_uri_filter && test_filter( op, rs->sr_entry, dli->dli_uri_filter ) != LDAP_COMPARE_TRUE ) {
 121                                 continue;
 122                         }
 123                 }
 124
 125                 if ( attr_valfind( a,
 126                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 127                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 128                                 &dli->dli_oc->soc_cname, NULL,
 129                                 op->o_tmpmemctx ) == 0 )
 130                 {
 131                         return dli;
 132                 }
 133         }
 134
 135         return NULL;
 136 }
 137
 138 static int
 139 dynlist_make_filter( Operation *op, Entry *e, const char *url, struct berval *oldf, struct berval *newf )
 140 {
 141         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 142         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 143
 144         char            *ptr;
 145         int             needBrackets = 0;
 146
 147         assert( oldf != NULL );
 148         assert( newf != NULL );
 149         assert( !BER_BVISNULL( oldf ) );
 150         assert( !BER_BVISEMPTY( oldf ) );
 151
 152         if ( oldf->bv_val[0] != '(' ) {
 153                 Debug( LDAP_DEBUG_ANY, "%s: dynlist, DN=\"%s\": missing brackets in URI=\"%s\" filter\n",
 154                         op->o_log_prefix, e->e_name.bv_val, url );
 155                 needBrackets = 2;
 156         }
 157
 158         newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" )
 159                 + dli->dli_oc->soc_cname.bv_len + oldf->bv_len + needBrackets;
 160         newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx );
 161         if ( newf->bv_val == NULL ) {
 162                 return -1;
 163         }
 164         ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" );
 165         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 166         ptr = lutil_strcopy( ptr, "))" );
 167         if ( needBrackets ) *ptr++ = '(';
 168         ptr = lutil_strcopy( ptr, oldf->bv_val );
 169         if ( needBrackets ) *ptr++ = ')';
 170         ptr = lutil_strcopy( ptr, ")" );
 171         newf->bv_len = ptr - newf->bv_val;
 172
 173         return 0;
 174 }
 175
 176 typedef struct dynlist_sc_t {
 177         dynlist_info_t    *dlc_dli;
 178         Entry           *dlc_e;
 179 } dynlist_sc_t;
 180
 181 static int
 182 dynlist_sc_update( Operation *op, SlapReply *rs )
 183 {
 184         Entry                   *e;
 185         Attribute               *a;
 186         int                     opattrs,
 187                                 userattrs;
 188         AccessControlState      acl_state = ACL_STATE_INIT;
 189
 190         dynlist_sc_t            *dlc;
 191         dynlist_map_t           *dlm;
 192
 193         if ( rs->sr_type != REP_SEARCH ) {
 194                 return 0;
 195         }
 196
 197         dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 198         e = dlc->dlc_e;
 199
 200         assert( e != NULL );
 201         assert( rs->sr_entry != NULL );
 202
 203         /* test access to entry */
 204         if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 205                                 NULL, ACL_READ, NULL ) )
 206         {
 207                 goto done;
 208         }
 209
 210         /* if there is only one member_ad, and it's not mapped,
 211          * consider it as old-style member listing */
 212         dlm = dlc->dlc_dli->dli_dlm;
 213         if ( dlm && dlm->dlm_mapped_ad == NULL && dlm->dlm_next == NULL ) {
 214                 /* if access allowed, try to add values, emulating permissive
 215                  * control to silently ignore duplicates */
 216                 if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 217                                         NULL, ACL_READ, NULL ) )
 218                 {
 219                         Modification    mod;
 220                         const char      *text = NULL;
 221                         char            textbuf[1024];
 222                         struct berval   vals[ 2 ], nvals[ 2 ];
 223
 224                         vals[ 0 ] = rs->sr_entry->e_name;
 225                         BER_BVZERO( &vals[ 1 ] );
 226                         nvals[ 0 ] = rs->sr_entry->e_nname;
 227                         BER_BVZERO( &nvals[ 1 ] );
 228
 229                         mod.sm_op = LDAP_MOD_ADD;
 230                         mod.sm_desc = dlm->dlm_member_ad;
 231                         mod.sm_type = dlm->dlm_member_ad->ad_cname;
 232                         mod.sm_values = vals;
 233                         mod.sm_nvalues = nvals;
 234                         mod.sm_numvals = 1;
 235
 236                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 237                                         &text, textbuf, sizeof( textbuf ) );
 238                 }
 239
 240                 goto done;
 241         }
 242
 243 #ifndef SLAP_OPATTRS
 244         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, slap_bv_operational_attrs );
 245         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, slap_bv_user_attrs );
 246 #else /* SLAP_OPATTRS */
 247         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 248         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 249 #endif /* SLAP_OPATTRS */
 250
 251         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 252                 BerVarray       vals, nvals = NULL;
 253                 int             i, j,
 254                                 is_oc = a->a_desc == slap_schema.si_ad_objectClass;
 255
 256                 /* if attribute is not requested, skip it */
 257                 if ( rs->sr_attrs == NULL ) {
 258                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 259                                 continue;
 260                         }
 261
 262                 } else {
 263                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 264                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 265                                 {
 266                                         continue;
 267                                 }
 268
 269                         } else {
 270                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 271                                 {
 272                                         continue;
 273                                 }
 274                         }
 275                 }
 276
 277                 /* test access to attribute */
 278                 if ( op->ors_attrsonly ) {
 279                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 280                                                 ACL_READ, &acl_state ) )
 281                         {
 282                                 continue;
 283                         }
 284                 }
 285
 286                 /* single-value check: keep first only */
 287                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 288                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 289                                 continue;
 290                         }
 291                 }
 292
 293                 /* test access to attribute */
 294                 i = a->a_numvals;
 295
 296                 vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 297                 if ( a->a_nvals != a->a_vals ) {
 298                         nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 299                 }
 300
 301                 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
 302                         if ( is_oc ) {
 303                                 ObjectClass     *soc = oc_bvfind( &a->a_vals[i] );
 304
 305                                 if ( soc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 306                                         continue;
 307                                 }
 308                         }
 309
 310                         if ( access_allowed( op, rs->sr_entry, a->a_desc,
 311                                                 &a->a_nvals[i], ACL_READ, &acl_state ) )
 312                         {
 313                                 vals[j] = a->a_vals[i];
 314                                 if ( nvals ) {
 315                                         nvals[j] = a->a_nvals[i];
 316                                 }
 317                                 j++;
 318                         }
 319                 }
 320
 321                 /* if access allowed, try to add values, emulating permissive
 322                  * control to silently ignore duplicates */
 323                 if ( j != 0 ) {
 324                         Modification    mod;
 325                         const char      *text = NULL;
 326                         char            textbuf[1024];
 327                         dynlist_map_t   *dlm;
 328                         AttributeDescription *ad;
 329
 330                         BER_BVZERO( &vals[j] );
 331                         if ( nvals ) {
 332                                 BER_BVZERO( &nvals[j] );
 333                         }
 334
 335                         ad = a->a_desc;
 336                         for ( dlm = dlc->dlc_dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 337                                 if ( dlm->dlm_member_ad == a->a_desc ) {
 338                                         if ( dlm->dlm_mapped_ad ) {
 339                                                 ad = dlm->dlm_mapped_ad;
 340                                         }
 341                                         break;
 342                                 }
 343                         }
 344
 345                         mod.sm_op = LDAP_MOD_ADD;
 346                         mod.sm_desc = ad;
 347                         mod.sm_type = ad->ad_cname;
 348                         mod.sm_values = vals;
 349                         mod.sm_nvalues = nvals;
 350                         mod.sm_numvals = j;
 351
 352                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 353                                         &text, textbuf, sizeof( textbuf ) );
 354                 }
 355
 356                 op->o_tmpfree( vals, op->o_tmpmemctx );
 357                 if ( nvals ) {
 358                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 359                 }
 360         }
 361
 362 done:;
 363         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 364                 entry_free( rs->sr_entry );
 365                 rs->sr_entry = NULL;
 366                 rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
 367         }
 368
 369         return 0;
 370 }
 371
 372 static int
 373 dynlist_prepare_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 374 {
 375         Attribute       *a, *id = NULL;
 376         slap_callback   cb;
 377         Operation       o = *op;
 378         SlapReply       r = { REP_SEARCH };
 379         struct berval   *url;
 380         Entry           *e;
 381         slap_mask_t     e_flags;
 382         int             opattrs,
 383                         userattrs;
 384         dynlist_sc_t    dlc = { 0 };
 385         dynlist_map_t   *dlm;
 386
 387         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 388         if ( a == NULL ) {
 389                 /* FIXME: error? */
 390                 return SLAP_CB_CONTINUE;
 391         }
 392
 393 #ifndef SLAP_OPATTRS
 394         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, slap_bv_operational_attrs );
 395         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, slap_bv_user_attrs );
 396 #else /* SLAP_OPATTRS */
 397         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 398         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 399 #endif /* SLAP_OPATTRS */
 400
 401         /* Don't generate member list if it wasn't requested */
 402         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 403                 AttributeDescription *ad = dlm->dlm_mapped_ad ? dlm->dlm_mapped_ad : dlm->dlm_member_ad;
 404                 if ( userattrs || ad_inlist( ad, rs->sr_attrs ) )
 405                         break;
 406         }
 407         if ( dli->dli_dlm && !dlm )
 408                 return SLAP_CB_CONTINUE;
 409
 410         if ( ad_dgIdentity && ( id = attrs_find( rs->sr_entry->e_attrs, ad_dgIdentity ))) {
 411                 Attribute *authz = NULL;
 412
 413                 /* if not rootdn and dgAuthz is present,
 414                  * check if user can be authorized as dgIdentity */
 415                 if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 416                         && ( authz = attrs_find( rs->sr_entry->e_attrs, ad_dgAuthz ) ) )
 417                 {
 418                         if ( slap_sasl_matches( op, authz->a_nvals,
 419                                 &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 420                         {
 421                                 return SLAP_CB_CONTINUE;
 422                         }
 423                 }
 424
 425                 o.o_dn = id->a_vals[0];
 426                 o.o_ndn = id->a_nvals[0];
 427                 o.o_groups = NULL;
 428         }
 429
 430         e_flags = rs->sr_flags;
 431         if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
 432                 e = entry_dup( rs->sr_entry );
 433                 e_flags |= ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 434                 e_flags &= ~REP_ENTRY_MUSTRELEASE;
 435         } else {
 436                 e = rs->sr_entry;
 437         }
 438
 439         dlc.dlc_e = e;
 440         dlc.dlc_dli = dli;
 441         cb.sc_private = &dlc;
 442         cb.sc_response = dynlist_sc_update;
 443         cb.sc_cleanup = NULL;
 444         cb.sc_next = NULL;
 445
 446         o.o_callback = &cb;
 447         o.ors_deref = LDAP_DEREF_NEVER;
 448         o.ors_limit = NULL;
 449         o.ors_tlimit = SLAP_NO_LIMIT;
 450         o.ors_slimit = SLAP_NO_LIMIT;
 451
 452         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 453                 LDAPURLDesc     *lud = NULL;
 454                 int             i, j;
 455                 struct berval   dn;
 456                 int             rc;
 457
 458                 BER_BVZERO( &o.o_req_dn );
 459                 BER_BVZERO( &o.o_req_ndn );
 460                 o.ors_filter = NULL;
 461                 o.ors_attrs = NULL;
 462                 BER_BVZERO( &o.ors_filterstr );
 463
 464                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 465                         /* FIXME: error? */
 466                         continue;
 467                 }
 468
 469                 if ( lud->lud_host != NULL ) {
 470                         /* FIXME: host not allowed; reject as illegal? */
 471                         Debug( LDAP_DEBUG_ANY, "dynlist_prepare_entry(\"%s\"): "
 472                                 "illegal URI \"%s\"\n",
 473                                 e->e_name.bv_val, url->bv_val, 0 );
 474                         goto cleanup;
 475                 }
 476
 477                 if ( lud->lud_dn == NULL ) {
 478                         /* note that an empty base is not honored in terms
 479                          * of defaultSearchBase, because select_backend()
 480                          * is not aware of the defaultSearchBase option;
 481                          * this can be useful in case of a database serving
 482                          * the empty suffix */
 483                         BER_BVSTR( &dn, "" );
 484
 485                 } else {
 486                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 487                 }
 488                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 489                 if ( rc != LDAP_SUCCESS ) {
 490                         /* FIXME: error? */
 491                         goto cleanup;
 492                 }
 493                 o.ors_scope = lud->lud_scope;
 494
 495                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 496                         if ( dlm->dlm_mapped_ad != NULL ) {
 497                                 break;
 498                         }
 499                 }
 500
 501                 if ( dli->dli_dlm && !dlm ) {
 502                         /* if ( lud->lud_attrs != NULL ),
 503                          * the URL should be ignored */
 504                         o.ors_attrs = slap_anlist_no_attrs;
 505
 506                 } else if ( lud->lud_attrs == NULL ) {
 507                         o.ors_attrs = rs->sr_attrs;
 508
 509                 } else {
 510                         for ( i = 0; lud->lud_attrs[i]; i++)
 511                                 /* just count */ ;
 512
 513                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 514                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 515                                 const char      *text = NULL;
 516
 517                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 518                                 o.ors_attrs[j].an_desc = NULL;
 519                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 520                                 /* FIXME: ignore errors... */
 521
 522                                 if ( rs->sr_attrs == NULL ) {
 523                                         if ( o.ors_attrs[j].an_desc != NULL &&
 524                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 525                                         {
 526                                                 continue;
 527                                         }
 528
 529                                 } else {
 530                                         if ( o.ors_attrs[j].an_desc != NULL &&
 531                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 532                                         {
 533                                                 if ( !opattrs ) {
 534                                                         continue;
 535                                                 }
 536
 537                                                 if ( !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) ) {
 538                                                         /* lookup if mapped -- linear search,
 539                                                          * not very efficient unless list
 540                                                          * is very short */
 541                                                         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 542                                                                 if ( dlm->dlm_member_ad == o.ors_attrs[j].an_desc ) {
 543                                                                         break;
 544                                                                 }
 545                                                         }
 546
 547                                                         if ( dlm == NULL ) {
 548                                                                 continue;
 549                                                         }
 550                                                 }
 551
 552                                         } else {
 553                                                 if ( !userattrs &&
 554                                                                 o.ors_attrs[j].an_desc != NULL &&
 555                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 556                                                 {
 557                                                         /* lookup if mapped -- linear search,
 558                                                          * not very efficient unless list
 559                                                          * is very short */
 560                                                         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 561                                                                 if ( dlm->dlm_member_ad == o.ors_attrs[j].an_desc ) {
 562                                                                         break;
 563                                                                 }
 564                                                         }
 565
 566                                                         if ( dlm == NULL ) {
 567                                                                 continue;
 568                                                         }
 569                                                 }
 570                                         }
 571                                 }
 572
 573                                 j++;
 574                         }
 575
 576                         if ( j == 0 ) {
 577                                 goto cleanup;
 578                         }
 579
 580                         BER_BVZERO( &o.ors_attrs[j].an_name );
 581                 }
 582
 583                 if ( lud->lud_filter == NULL ) {
 584                         ber_dupbv_x( &o.ors_filterstr,
 585                                         &dli->dli_default_filter, op->o_tmpmemctx );
 586
 587                 } else {
 588                         struct berval   flt;
 589                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 590                         if ( dynlist_make_filter( op, rs->sr_entry, url->bv_val, &flt, &o.ors_filterstr ) ) {
 591                                 /* error */
 592                                 goto cleanup;
 593                         }
 594                 }
 595                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 596                 if ( o.ors_filter == NULL ) {
 597                         goto cleanup;
 598                 }
 599
 600                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 601                 if ( o.o_bd && o.o_bd->be_search ) {
 602 #ifdef SLAP_OPATTRS
 603                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 604 #endif /* SLAP_OPATTRS */
 605                         (void)o.o_bd->be_search( &o, &r );
 606                 }
 607
 608 cleanup:;
 609                 if ( id ) {
 610                         slap_op_groups_free( &o );
 611                 }
 612                 if ( o.ors_filter ) {
 613                         filter_free_x( &o, o.ors_filter, 1 );
 614                 }
 615                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 616                                 && o.ors_attrs != slap_anlist_no_attrs )
 617                 {
 618                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 619                 }
 620                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 621                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 622                 }
 623                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 624                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 625                 }
 626                 assert( BER_BVISNULL( &o.ors_filterstr )
 627                         || o.ors_filterstr.bv_val != lud->lud_filter );
 628                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 629                 ldap_free_urldesc( lud );
 630         }
 631
 632         rs->sr_entry = e;
 633         rs->sr_flags = e_flags;
 634
 635         return SLAP_CB_CONTINUE;
 636 }
 637
 638 static int
 639 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 640 {
 641         /* save the entry in the private field of the callback,
 642          * so it doesn't get freed (it's temporary!) */
 643         if ( rs->sr_entry != NULL ) {
 644                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 645                 dlc->dlc_e = rs->sr_entry;
 646                 rs->sr_entry = NULL;
 647         }
 648
 649         return 0;
 650 }
 651
 652 static int
 653 dynlist_compare( Operation *op, SlapReply *rs )
 654 {
 655         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 656         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 657         Operation o = *op;
 658         Entry *e = NULL;
 659         dynlist_map_t *dlm;
 660         BackendDB *be;
 661
 662         for ( ; dli != NULL; dli = dli->dli_next ) {
 663                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next )
 664                         if ( op->oq_compare.rs_ava->aa_desc == dlm->dlm_member_ad )
 665                                 break;
 666
 667                 if ( dlm ) {
 668                         /* This compare is for one of the attributes we're
 669                          * interested in. We'll use slapd's existing dyngroup
 670                          * evaluator to get the answer we want.
 671                          */
 672                         BerVarray id = NULL, authz = NULL;
 673
 674                         o.o_do_not_cache = 1;
 675
 676                         if ( ad_dgIdentity && backend_attribute( &o, NULL, &o.o_req_ndn,
 677                                 ad_dgIdentity, &id, ACL_READ ) == LDAP_SUCCESS )
 678                         {
 679                                 /* if not rootdn and dgAuthz is present,
 680                                  * check if user can be authorized as dgIdentity */
 681                                 if ( ad_dgAuthz && !BER_BVISEMPTY( id ) && !be_isroot( op )
 682                                         && backend_attribute( &o, NULL, &o.o_req_ndn,
 683                                                 ad_dgAuthz, &authz, ACL_READ ) == LDAP_SUCCESS )
 684                                 {
 685
 686                                         rs->sr_err = slap_sasl_matches( op, authz,
 687                                                 &o.o_ndn, &o.o_ndn );
 688                                         ber_bvarray_free_x( authz, op->o_tmpmemctx );
 689                                         if ( rs->sr_err != LDAP_SUCCESS ) {
 690                                                 goto done;
 691                                         }
 692                                 }
 693
 694                                 o.o_dn = *id;
 695                                 o.o_ndn = *id;
 696                                 o.o_groups = NULL; /* authz changed, invalidate cached groups */
 697                         }
 698
 699                         rs->sr_err = backend_group( &o, NULL, &o.o_req_ndn,
 700                                 &o.oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 701                         switch ( rs->sr_err ) {
 702                         case LDAP_SUCCESS:
 703                                 rs->sr_err = LDAP_COMPARE_TRUE;
 704                                 break;
 705
 706                         case LDAP_NO_SUCH_OBJECT:
 707                                 /* NOTE: backend_group() returns noSuchObject
 708                                  * if op_ndn does not exist; however, since
 709                                  * dynamic list expansion means that the
 710                                  * member attribute is virtually present, the
 711                                  * non-existence of the asserted value implies
 712                                  * the assertion is FALSE rather than
 713                                  * UNDEFINED */
 714                                 rs->sr_err = LDAP_COMPARE_FALSE;
 715                                 break;
 716                         }
 717
 718 done:;
 719                         if ( id ) ber_bvarray_free_x( id, o.o_tmpmemctx );
 720
 721                         return SLAP_CB_CONTINUE;
 722                 }
 723         }
 724
 725         be = select_backend( &o.o_req_ndn, 1 );
 726         if ( !be || !be->be_search ) {
 727                 return SLAP_CB_CONTINUE;
 728         }
 729
 730         if ( overlay_entry_get_ov( &o, &o.o_req_ndn, NULL, NULL, 0, &e, on ) !=
 731                 LDAP_SUCCESS || e == NULL )
 732         {
 733                 return SLAP_CB_CONTINUE;
 734         }
 735
 736         /* check for dynlist objectClass; done if not found */
 737         dli = (dynlist_info_t *)on->on_bi.bi_private;
 738         while ( dli != NULL && !is_entry_objectclass_or_sub( e, dli->dli_oc ) ) {
 739                 dli = dli->dli_next;
 740         }
 741         if ( dli == NULL ) {
 742                 goto release;
 743         }
 744
 745         if ( ad_dgIdentity ) {
 746                 Attribute *id = attrs_find( e->e_attrs, ad_dgIdentity );
 747                 if ( id ) {
 748                         Attribute *authz;
 749
 750                         /* if not rootdn and dgAuthz is present,
 751                          * check if user can be authorized as dgIdentity */
 752                         if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 753                                 && ( authz = attrs_find( e->e_attrs, ad_dgAuthz ) ) )
 754                         {
 755                                 if ( slap_sasl_matches( op, authz->a_nvals,
 756                                         &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 757                                 {
 758                                         goto release;
 759                                 }
 760                         }
 761
 762                         o.o_dn = id->a_vals[0];
 763                         o.o_ndn = id->a_nvals[0];
 764                         o.o_groups = NULL;
 765                 }
 766         }
 767
 768         /* generate dynamic list with dynlist_response() and compare */
 769         {
 770                 Attribute       *a;
 771                 slap_callback   cb;
 772                 SlapReply       r = { REP_SEARCH };
 773                 AttributeName   an[2];
 774                 int             rc;
 775                 dynlist_sc_t    dlc = { 0 };
 776
 777                 cb.sc_private = &dlc;
 778                 cb.sc_response = dynlist_sc_save_entry;
 779                 cb.sc_cleanup = NULL;
 780                 cb.sc_next = NULL;
 781                 o.o_callback = &cb;
 782
 783                 o.o_tag = LDAP_REQ_SEARCH;
 784                 o.ors_limit = NULL;
 785                 o.ors_tlimit = SLAP_NO_LIMIT;
 786                 o.ors_slimit = SLAP_NO_LIMIT;
 787
 788                 o.ors_filterstr = *slap_filterstr_objectClass_pres;
 789                 o.ors_filter = (Filter *) slap_filter_objectClass_pres;
 790
 791                 o.ors_scope = LDAP_SCOPE_BASE;
 792                 o.ors_deref = LDAP_DEREF_NEVER;
 793                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 794                 an[0].an_desc = op->orc_ava->aa_desc;
 795                 BER_BVZERO( &an[1].an_name );
 796                 o.ors_attrs = an;
 797                 o.ors_attrsonly = 0;
 798
 799                 o.o_acl_priv = ACL_COMPARE;
 800
 801                 o.o_bd = be;
 802                 rc = o.o_bd->be_search( &o, &r );
 803
 804                 if ( o.o_dn.bv_val != op->o_dn.bv_val ) {
 805                         slap_op_groups_free( &o );
 806                 }
 807
 808                 if ( rc != 0 ) {
 809                         goto release;
 810                 }
 811
 812                 if ( dlc.dlc_e != NULL ) {
 813                         r.sr_entry = dlc.dlc_e;
 814                 }
 815
 816                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 817                         /* error? */
 818                         goto release;
 819                 }
 820
 821                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 822                         a != NULL;
 823                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 824                 {
 825                         /* if we're here, we got a match... */
 826                         rs->sr_err = LDAP_COMPARE_FALSE;
 827
 828                         if ( attr_valfind( a,
 829                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 830                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 831                                 &op->orc_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
 832                         {
 833                                 rs->sr_err = LDAP_COMPARE_TRUE;
 834                                 break;
 835                         }
 836                 }
 837
 838                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 839                         entry_free( r.sr_entry );
 840                         r.sr_entry = NULL;
 841                         r.sr_flags ^= REP_ENTRY_MUSTBEFREED;
 842                 }
 843         }
 844
 845 release:;
 846         if ( e != NULL ) {
 847                 overlay_entry_release_ov( &o, e, 0, on );
 848         }
 849
 850         return SLAP_CB_CONTINUE;
 851 }
 852
 853 static int
 854 dynlist_response( Operation *op, SlapReply *rs )
 855 {
 856         switch ( op->o_tag ) {
 857         case LDAP_REQ_SEARCH:
 858                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 859                 {
 860                         int     rc = SLAP_CB_CONTINUE;
 861                         dynlist_info_t  *dli = NULL;
 862
 863                         while ( (dli = dynlist_is_dynlist_next( op, rs, dli )) != NULL ) {
 864                                 rc = dynlist_prepare_entry( op, rs, dli );
 865                         }
 866
 867                         return rc;
 868                 }
 869                 break;
 870
 871         case LDAP_REQ_COMPARE:
 872                 switch ( rs->sr_err ) {
 873                 /* NOTE: we waste a few cycles running the dynamic list
 874                  * also when the result is FALSE, which occurs if the
 875                  * dynamic entry itself contains the AVA attribute  */
 876                 /* FIXME: this approach is less than optimal; a dedicated
 877                  * compare op should be implemented, that fetches the
 878                  * entry, checks if it has the appropriate objectClass
 879                  * and, in case, runs a compare thru all the URIs,
 880                  * stopping at the first positive occurrence; see ITS#3756 */
 881                 case LDAP_COMPARE_FALSE:
 882                 case LDAP_NO_SUCH_ATTRIBUTE:
 883                         return dynlist_compare( op, rs );
 884                 }
 885                 break;
 886         }
 887
 888         return SLAP_CB_CONTINUE;
 889 }
 890
 891 static int
 892 dynlist_build_def_filter( dynlist_info_t *dli )
 893 {
 894         char    *ptr;
 895
 896         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 897                 + dli->dli_oc->soc_cname.bv_len;
 898         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 899         if ( dli->dli_default_filter.bv_val == NULL ) {
 900                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 901                         0, 0, 0 );
 902                 return -1;
 903         }
 904
 905         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 906         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 907         ptr = lutil_strcopy( ptr, "))" );
 908
 909         assert( ptr == &dli->dli_default_filter.bv_val[dli->dli_default_filter.bv_len] );
 910
 911         return 0;
 912 }
 913
 914 #ifdef OL_2_2_COMPAT
 915 static int
 916 dynlist_db_config(
 917         BackendDB       *be,
 918         const char      *fname,
 919         int             lineno,
 920         int             argc,
 921         char            **argv )
 922 {
 923         slap_overinst   *on = (slap_overinst *)be->bd_info;
 924
 925         int             rc = 0;
 926
 927         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 928                 dynlist_info_t          **dlip;
 929                 ObjectClass             *oc;
 930                 AttributeDescription    *ad = NULL,
 931                                         *member_ad = NULL;
 932                 dynlist_map_t           *dlm = NULL, *dlml = NULL;
 933                 const char              *text;
 934
 935                 if ( argc < 3 ) {
 936                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 937                                 "invalid arg number #%d.\n",
 938                                 fname, lineno, argc );
 939                         return 1;
 940                 }
 941
 942                 oc = oc_find( argv[1] );
 943                 if ( oc == NULL ) {
 944                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 945                                 "unable to find ObjectClass \"%s\"\n",
 946                                 fname, lineno, argv[ 1 ] );
 947                         return 1;
 948                 }
 949
 950                 rc = slap_str2ad( argv[2], &ad, &text );
 951                 if ( rc != LDAP_SUCCESS ) {
 952                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 953                                 "unable to find AttributeDescription \"%s\"\n",
 954                                 fname, lineno, argv[2] );
 955                         return 1;
 956                 }
 957
 958                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 959                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 960                                 "AttributeDescription \"%s\" "
 961                                 "must be a subtype of \"labeledURI\"\n",
 962                                 fname, lineno, argv[2] );
 963                         return 1;
 964                 }
 965
 966                 for ( i = 3; i < argc; i++ ) {
 967                         char *arg;
 968                         char *cp;
 969                         AttributeDescription *member_ad = NULL;
 970                         AttributeDescription *mapped_ad = NULL;
 971                         dynlist_map_t *dlmp;
 972
 973
 974                         /*
 975                          * If no mapped attribute is given, dn is used
 976                          * for backward compatibility.
 977                          */
 978                         arg = argv[i];
 979                         if ( cp = strchr( arg, (int)':' ) != NULL ) {
 980                                 struct berval bv;
 981                                 ber_str2bv( arg, cp - arg, 0, &bv );
 982                                 rc = slap_bv2ad( &bv, &mapped_ad, &text );
 983                                 if ( rc != LDAP_SUCCESS ) {
 984                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 985                                                 DYNLIST_USAGE
 986                                                 "unable to find mapped AttributeDescription \"%s\"\n",
 987                                                 fname, lineno, arg );
 988                                         return 1;
 989                                 }
 990
 991                                 arg = cp + 1;
 992                         }
 993
 994                         rc = slap_str2ad( arg, &member_ad, &text );
 995                         if ( rc != LDAP_SUCCESS ) {
 996                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 997                                         DYNLIST_USAGE
 998                                         "unable to find AttributeDescription \"%s\"\n",
 999                                         fname, lineno, arg );
1000                                 return 1;
1001                         }
1002
1003                         dlmp = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1004                         if ( dlm == NULL ) {
1005                                 dlm = dlmp;
1006                         }
1007                         dlmp->dlm_member_ad = member_ad;
1008                         dlmp->dlm_mapped_ad = mapped_ad;
1009                         dlmp->dlm_next = NULL;
1010
1011                         if ( dlml != NULL )
1012                                 dlml->dlm_next = dlmp;
1013                         dlml = dlmp;
1014                 }
1015
1016                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1017                         *dlip; dlip = &(*dlip)->dli_next )
1018                 {
1019                         /*
1020                          * The same URL attribute / member attribute pair
1021                          * cannot be repeated, but we enforce this only
1022                          * when the member attribute is unique. Performing
1023                          * the check for multiple values would require
1024                          * sorting and comparing the lists, which is left
1025                          * as a future improvement
1026                          */
1027                         if ( (*dlip)->dli_ad == ad &&
1028                              (*dlip)->dli_dlm->dlm_next == NULL &&
1029                              dlm->dlm_next == NULL &&
1030                              dlm->dlm_member_ad == (*dlip)->dli_dlm->dlm_member_ad &&
1031                              dlm->dlm_mapped_ad == (*dlip)->dli_dlm->dlm_mapped_ad ) {
1032                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1033                                         DYNLIST_USAGE
1034                                         "URL attributeDescription \"%s\" already mapped.\n",
1035                                         fname, lineno, ad->ad_cname.bv_val );
1036 #if 0
1037                                 /* make it a warning... */
1038                                 return 1;
1039 #endif
1040                         }
1041                 }
1042
1043                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1044                 (*dlip)->dli_oc = oc;
1045                 (*dlip)->dli_ad = ad;
1046                 (*dlip)->dli_dlm = dlm;
1047
1048                 if ( dynlist_build_def_filter( *dlip ) ) {
1049                         dynlist_map_t *dlm = (*dlip)->ldi_dlm;
1050                         dynlist_map_t *dlm_next;
1051
1052                         while ( dlm != NULL ) {
1053                                 dlm_next = dlm->dlm_next;
1054                                 ch_free( dlm );
1055                                 dlm = dlm_next;
1056                         }
1057
1058                         ch_free( *dlip );
1059                         *dlip = NULL;
1060                         return 1;
1061                 }
1062
1063         /* allow dyngroup syntax */
1064         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
1065                 dynlist_info_t          **dlip;
1066                 ObjectClass             *oc;
1067                 AttributeDescription    *ad = NULL,
1068                                         *member_ad = NULL;
1069                 const char              *text;
1070
1071                 if ( argc != 3 ) {
1072                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1073                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1074                                 "invalid arg number #%d.\n",
1075                                 fname, lineno, argc );
1076                         return 1;
1077                 }
1078
1079                 oc = oc_find( "groupOfURLs" );
1080                 if ( oc == NULL ) {
1081                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1082                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1083                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
1084                                 fname, lineno, 0 );
1085                         return 1;
1086                 }
1087
1088                 rc = slap_str2ad( argv[1], &member_ad, &text );
1089                 if ( rc != LDAP_SUCCESS ) {
1090                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1091                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1092                                 "unable to find AttributeDescription \"%s\"\n",
1093                                 fname, lineno, argv[1] );
1094                         return 1;
1095                 }
1096
1097                 rc = slap_str2ad( argv[2], &ad, &text );
1098                 if ( rc != LDAP_SUCCESS ) {
1099                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1100                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1101                                 "unable to find AttributeDescription \"%s\"\n",
1102                                 fname, lineno, argv[2] );
1103                         return 1;
1104                 }
1105
1106                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1107                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1108                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1109                                 "AttributeDescription \"%s\" "
1110                                 "must be a subtype of \"labeledURI\"\n",
1111                                 fname, lineno, argv[2] );
1112                         return 1;
1113                 }
1114
1115                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1116                         *dlip; dlip = &(*dlip)->dli_next )
1117                 {
1118                         /*
1119                          * The same URL attribute / member attribute pair
1120                          * cannot be repeated, but we enforce this only
1121                          * when the member attribute is unique. Performing
1122                          * the check for multiple values would require
1123                          * sorting and comparing the lists, which is left
1124                          * as a future improvement
1125                          */
1126                         if ( (*dlip)->dli_ad == ad &&
1127                              (*dlip)->dli_dlm->dlm_next == NULL &&
1128                              member_ad == (*dlip)->dli_dlm->dlm_member_ad ) {
1129                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1130                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1131                                         "URL attributeDescription \"%s\" already mapped.\n",
1132                                         fname, lineno, ad->ad_cname.bv_val );
1133 #if 0
1134                                 /* make it a warning... */
1135                                 return 1;
1136 #endif
1137                         }
1138                 }
1139
1140                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1141                 (*dlip)->dli_oc = oc;
1142                 (*dlip)->dli_ad = ad;
1143                 (*dlip)->dli_dlm = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1144                 (*dlip)->dli_dlm->dlm_member_ad = member_ad;
1145                 (*dlip)->dli_dlm->dlm_mapped_ad = NULL;
1146
1147                 if ( dynlist_build_def_filter( *dlip ) ) {
1148                         ch_free( (*dlip)->dli_dlm );
1149                         ch_free( *dlip );
1150                         *dlip = NULL;
1151                         return 1;
1152                 }
1153
1154         } else {
1155                 rc = SLAP_CONF_UNKNOWN;
1156         }
1157
1158         return rc;
1159 }
1160
1161 #else
1162 enum {
1163         DL_ATTRSET = 1,
1164         DL_ATTRPAIR,
1165         DL_ATTRPAIR_COMPAT,
1166         DL_LAST
1167 };
1168
1169 static ConfigDriver     dl_cfgen;
1170
1171 /* XXXmanu 255 is the maximum arguments we allow. Can we go beyond? */
1172 static ConfigTable dlcfg[] = {
1173         { "dynlist-attrset", "group-oc> [uri] <URL-ad> <[mapped:]member-ad> [...]",
1174                 3, 0, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
1175                 "( OLcfgOvAt:8.1 NAME 'olcDlAttrSet' "
1176                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
1177                         "EQUALITY caseIgnoreMatch "
1178                         "SYNTAX OMsDirectoryString "
1179                         "X-ORDERED 'VALUES' )",
1180                         NULL, NULL },
1181         { "dynlist-attrpair", "member-ad> <URL-ad",
1182                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
1183                         NULL, NULL, NULL },
1184 #ifdef TAKEOVER_DYNGROUP
1185         { "attrpair", "member-ad> <URL-ad",
1186                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
1187                         NULL, NULL, NULL },
1188 #endif
1189         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1190 };
1191
1192 static ConfigOCs dlocs[] = {
1193         { "( OLcfgOvOc:8.1 "
1194                 "NAME 'olcDynamicList' "
1195                 "DESC 'Dynamic list configuration' "
1196                 "SUP olcOverlayConfig "
1197                 "MAY olcDLattrSet )",
1198                 Cft_Overlay, dlcfg, NULL, NULL },
1199         { NULL, 0, NULL }
1200 };
1201
1202 static int
1203 dl_cfgen( ConfigArgs *c )
1204 {
1205         slap_overinst   *on = (slap_overinst *)c->bi;
1206         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
1207
1208         int             rc = 0, i;
1209
1210         if ( c->op == SLAP_CONFIG_EMIT ) {
1211                 switch( c->type ) {
1212                 case DL_ATTRSET:
1213                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
1214                                 struct berval   bv;
1215                                 char            *ptr = c->cr_msg;
1216                                 dynlist_map_t   *dlm;
1217
1218                                 assert( dli->dli_oc != NULL );
1219                                 assert( dli->dli_ad != NULL );
1220
1221                                 /* FIXME: check buffer overflow! */
1222                                 ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ),
1223                                         SLAP_X_ORDERED_FMT "%s", i,
1224                                         dli->dli_oc->soc_cname.bv_val );
1225
1226                                 if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1227                                         *ptr++ = ' ';
1228                                         *ptr++ = '"';
1229                                         ptr = lutil_strncopy( ptr, dli->dli_uri.bv_val,
1230                                                 dli->dli_uri.bv_len );
1231                                         *ptr++ = '"';
1232                                 }
1233
1234                                 *ptr++ = ' ';
1235                                 ptr = lutil_strncopy( ptr, dli->dli_ad->ad_cname.bv_val,
1236                                         dli->dli_ad->ad_cname.bv_len );
1237
1238                                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
1239                                         ptr[ 0 ] = ' ';
1240                                         ptr++;
1241                                         if ( dlm->dlm_mapped_ad ) {
1242                                                 ptr = lutil_strcopy( ptr, dlm->dlm_mapped_ad->ad_cname.bv_val );
1243                                                 ptr[ 0 ] = ':';
1244                                                 ptr++;
1245                                         }
1246
1247                                         ptr = lutil_strcopy( ptr, dlm->dlm_member_ad->ad_cname.bv_val );
1248                                 }
1249
1250                                 bv.bv_val = c->cr_msg;
1251                                 bv.bv_len = ptr - bv.bv_val;
1252                                 value_add_one( &c->rvalue_vals, &bv );
1253                         }
1254                         break;
1255
1256                 case DL_ATTRPAIR_COMPAT:
1257                 case DL_ATTRPAIR:
1258                         rc = 1;
1259                         break;
1260
1261                 default:
1262                         rc = 1;
1263                         break;
1264                 }
1265
1266                 return rc;
1267
1268         } else if ( c->op == LDAP_MOD_DELETE ) {
1269                 switch( c->type ) {
1270                 case DL_ATTRSET:
1271                         if ( c->valx < 0 ) {
1272                                 dynlist_info_t  *dli_next;
1273
1274                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1275                                         dynlist_map_t *dlm = dli->dli_dlm;
1276                                         dynlist_map_t *dlm_next;
1277
1278                                         dli_next = dli->dli_next;
1279
1280                                         if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1281                                                 ch_free( dli->dli_uri.bv_val );
1282                                         }
1283
1284                                         if ( dli->dli_lud != NULL ) {
1285                                                 ldap_free_urldesc( dli->dli_lud );
1286                                         }
1287
1288                                         if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) {
1289                                                 ber_memfree( dli->dli_uri_nbase.bv_val );
1290                                         }
1291
1292                                         if ( dli->dli_uri_filter != NULL ) {
1293                                                 filter_free( dli->dli_uri_filter );
1294                                         }
1295
1296                                         ch_free( dli->dli_default_filter.bv_val );
1297
1298                                         while ( dlm != NULL ) {
1299                                                 dlm_next = dlm->dlm_next;
1300                                                 ch_free( dlm );
1301                                                 dlm = dlm_next;
1302                                         }
1303                                         ch_free( dli );
1304                                 }
1305
1306                                 on->on_bi.bi_private = NULL;
1307
1308                         } else {
1309                                 dynlist_info_t  **dlip;
1310                                 dynlist_map_t *dlm;
1311                                 dynlist_map_t *dlm_next;
1312
1313                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1314                                         i < c->valx; i++ )
1315                                 {
1316                                         if ( *dlip == NULL ) {
1317                                                 return 1;
1318                                         }
1319                                         dlip = &(*dlip)->dli_next;
1320                                 }
1321
1322                                 dli = *dlip;
1323                                 *dlip = dli->dli_next;
1324
1325                                 if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1326                                         ch_free( dli->dli_uri.bv_val );
1327                                 }
1328
1329                                 if ( dli->dli_lud != NULL ) {
1330                                         ldap_free_urldesc( dli->dli_lud );
1331                                 }
1332
1333                                 if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) {
1334                                         ber_memfree( dli->dli_uri_nbase.bv_val );
1335                                 }
1336
1337                                 if ( dli->dli_uri_filter != NULL ) {
1338                                         filter_free( dli->dli_uri_filter );
1339                                 }
1340
1341                                 ch_free( dli->dli_default_filter.bv_val );
1342
1343                                 dlm = dli->dli_dlm;
1344                                 while ( dlm != NULL ) {
1345                                         dlm_next = dlm->dlm_next;
1346                                         ch_free( dlm );
1347                                         dlm = dlm_next;
1348                                 }
1349                                 ch_free( dli );
1350
1351                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1352                         }
1353                         break;
1354
1355                 case DL_ATTRPAIR_COMPAT:
1356                 case DL_ATTRPAIR:
1357                         rc = 1;
1358                         break;
1359
1360                 default:
1361                         rc = 1;
1362                         break;
1363                 }
1364
1365                 return rc;
1366         }
1367
1368         switch( c->type ) {
1369         case DL_ATTRSET: {
1370                 dynlist_info_t          **dlip,
1371                                         *dli_next = NULL;
1372                 ObjectClass             *oc = NULL;
1373                 AttributeDescription    *ad = NULL;
1374                 int                     attridx = 2;
1375                 LDAPURLDesc             *lud = NULL;
1376                 struct berval           nbase = BER_BVNULL;
1377                 Filter                  *filter = NULL;
1378                 struct berval           uri = BER_BVNULL;
1379                 dynlist_map_t           *dlm = NULL, *dlml = NULL;
1380                 const char              *text;
1381
1382                 oc = oc_find( c->argv[ 1 ] );
1383                 if ( oc == NULL ) {
1384                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1385                                 "unable to find ObjectClass \"%s\"",
1386                                 c->argv[ 1 ] );
1387                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1388                                 c->log, c->cr_msg, 0 );
1389                         return 1;
1390                 }
1391
1392                 if ( strncasecmp( c->argv[ attridx ], "ldap://", STRLENOF("ldap://") ) == 0 ) {
1393                         if ( ldap_url_parse( c->argv[ attridx ], &lud ) != LDAP_URL_SUCCESS ) {
1394                                 snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1395                                         "unable to parse URI \"%s\"",
1396                                         c->argv[ attridx ] );
1397                                 rc = 1;
1398                                 goto done_uri;
1399                         }
1400
1401                         if ( lud->lud_host != NULL ) {
1402                                 if ( lud->lud_host[0] == '\0' ) {
1403                                         ch_free( lud->lud_host );
1404                                         lud->lud_host = NULL;
1405
1406                                 } else {
1407                                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1408                                                 "host not allowed in URI \"%s\"",
1409                                                 c->argv[ attridx ] );
1410                                         rc = 1;
1411                                         goto done_uri;
1412                                 }
1413                         }
1414
1415                         if ( lud->lud_attrs != NULL ) {
1416                                 snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1417                                         "attrs not allowed in URI \"%s\"",
1418                                         c->argv[ attridx ] );
1419                                 rc = 1;
1420                                 goto done_uri;
1421                         }
1422
1423                         if ( lud->lud_exts != NULL ) {
1424                                 snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1425                                         "extensions not allowed in URI \"%s\"",
1426                                         c->argv[ attridx ] );
1427                                 rc = 1;
1428                                 goto done_uri;
1429                         }
1430
1431                         if ( lud->lud_dn != NULL && lud->lud_dn[ 0 ] != '\0' ) {
1432                                 struct berval dn;
1433                                 ber_str2bv( lud->lud_dn, 0, 0, &dn );
1434                                 rc = dnNormalize( 0, NULL, NULL, &dn, &nbase, NULL );
1435                                 if ( rc != LDAP_SUCCESS ) {
1436                                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1437                                                 "DN normalization failed in URI \"%s\"",
1438                                                 c->argv[ attridx ] );
1439                                         goto done_uri;
1440                                 }
1441                         }
1442
1443                         if ( lud->lud_filter != NULL && lud->lud_filter[ 0 ] != '\0' ) {
1444                                 filter = str2filter( lud->lud_filter );
1445                                 if ( filter == NULL ) {
1446                                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1447                                                 "filter parsing failed in URI \"%s\"",
1448                                                 c->argv[ attridx ] );
1449                                         rc = 1;
1450                                         goto done_uri;
1451                                 }
1452                         }
1453
1454                         ber_str2bv( c->argv[ attridx ], 0, 1, &uri );
1455
1456 done_uri:;
1457                         if ( rc ) {
1458                                 if ( lud ) {
1459                                         ldap_free_urldesc( lud );
1460                                 }
1461
1462                                 if ( !BER_BVISNULL( &nbase ) ) {
1463                                         ber_memfree( nbase.bv_val );
1464                                 }
1465
1466                                 if ( filter != NULL ) {
1467                                         filter_free( filter );
1468                                 }
1469
1470                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1471                                         c->log, c->cr_msg, 0 );
1472
1473                                 return rc;
1474                         }
1475
1476                         attridx++;
1477                 }
1478
1479                 rc = slap_str2ad( c->argv[ attridx ], &ad, &text );
1480                 if ( rc != LDAP_SUCCESS ) {
1481                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1482                                 "unable to find AttributeDescription \"%s\"",
1483                                 c->argv[ attridx ] );
1484                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1485                                 c->log, c->cr_msg, 0 );
1486                         return 1;
1487                 }
1488
1489                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1490                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1491                                 "AttributeDescription \"%s\" "
1492                                 "must be a subtype of \"labeledURI\"",
1493                                 c->argv[ attridx ] );
1494                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1495                                 c->log, c->cr_msg, 0 );
1496                         return 1;
1497                 }
1498
1499                 attridx++;
1500
1501                 for ( i = attridx; i < c->argc; i++ ) {
1502                         char *arg;
1503                         char *cp;
1504                         AttributeDescription *member_ad = NULL;
1505                         AttributeDescription *mapped_ad = NULL;
1506                         dynlist_map_t *dlmp;
1507
1508
1509                         /*
1510                          * If no mapped attribute is given, dn is used
1511                          * for backward compatibility.
1512                          */
1513                         arg = c->argv[i];
1514                         if ( ( cp = strchr( arg, ':' ) ) != NULL ) {
1515                                 struct berval bv;
1516                                 ber_str2bv( arg, cp - arg, 0, &bv );
1517                                 rc = slap_bv2ad( &bv, &mapped_ad, &text );
1518                                 if ( rc != LDAP_SUCCESS ) {
1519                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1520                                                 DYNLIST_USAGE
1521                                                 "unable to find mapped AttributeDescription #%d \"%s\"\n",
1522                                                 i - 3, c->argv[ i ] );
1523                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1524                                                 c->log, c->cr_msg, 0 );
1525                                         return 1;
1526                                 }
1527                                 arg = cp + 1;
1528                         }
1529
1530                         rc = slap_str2ad( arg, &member_ad, &text );
1531                         if ( rc != LDAP_SUCCESS ) {
1532                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1533                                         DYNLIST_USAGE
1534                                         "unable to find AttributeDescription #%d \"%s\"\n",
1535                                         i - 3, c->argv[ i ] );
1536                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1537                                         c->log, c->cr_msg, 0 );
1538                                 return 1;
1539                         }
1540
1541                         dlmp = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1542                         if ( dlm == NULL ) {
1543                                 dlm = dlmp;
1544                         }
1545                         dlmp->dlm_member_ad = member_ad;
1546                         dlmp->dlm_mapped_ad = mapped_ad;
1547                         dlmp->dlm_next = NULL;
1548
1549                         if ( dlml != NULL )
1550                                 dlml->dlm_next = dlmp;
1551                         dlml = dlmp;
1552                 }
1553
1554                 if ( c->valx > 0 ) {
1555                         int     i;
1556
1557                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1558                                 i < c->valx; i++ )
1559                         {
1560                                 if ( *dlip == NULL ) {
1561                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1562                                                 DYNLIST_USAGE
1563                                                 "invalid index {%d}\n",
1564                                                 c->valx );
1565                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1566                                                 c->log, c->cr_msg, 0 );
1567                                         return 1;
1568                                 }
1569                                 dlip = &(*dlip)->dli_next;
1570                         }
1571                         dli_next = *dlip;
1572
1573                 } else {
1574                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1575                                 *dlip; dlip = &(*dlip)->dli_next )
1576                                 /* goto last */;
1577                 }
1578
1579                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1580
1581                 (*dlip)->dli_oc = oc;
1582                 (*dlip)->dli_ad = ad;
1583                 (*dlip)->dli_dlm = dlm;
1584                 (*dlip)->dli_next = dli_next;
1585
1586                 (*dlip)->dli_lud = lud;
1587                 (*dlip)->dli_uri_nbase = nbase;
1588                 (*dlip)->dli_uri_filter = filter;
1589                 (*dlip)->dli_uri = uri;
1590
1591                 rc = dynlist_build_def_filter( *dlip );
1592
1593                 } break;
1594
1595         case DL_ATTRPAIR_COMPAT:
1596                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1597                         "warning: \"attrpair\" only supported for limited "
1598                         "backward compatibility with overlay \"dyngroup\"" );
1599                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
1600                 /* fallthru */
1601
1602         case DL_ATTRPAIR: {
1603                 dynlist_info_t          **dlip;
1604                 ObjectClass             *oc = NULL;
1605                 AttributeDescription    *ad = NULL,
1606                                         *member_ad = NULL;
1607                 const char              *text;
1608
1609                 oc = oc_find( "groupOfURLs" );
1610                 if ( oc == NULL ) {
1611                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1612                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1613                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1614                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1615                                 c->log, c->cr_msg, 0 );
1616                         return 1;
1617                 }
1618
1619                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1620                 if ( rc != LDAP_SUCCESS ) {
1621                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1622                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1623                                 "unable to find AttributeDescription \"%s\"",
1624                                 c->argv[ 1 ] );
1625                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1626                                 c->log, c->cr_msg, 0 );
1627                         return 1;
1628                 }
1629
1630                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1631                 if ( rc != LDAP_SUCCESS ) {
1632                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1633                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1634                                 "unable to find AttributeDescription \"%s\"\n",
1635                                 c->argv[ 2 ] );
1636                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1637                                 c->log, c->cr_msg, 0 );
1638                         return 1;
1639                 }
1640
1641                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1642                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1643                                 DYNLIST_USAGE
1644                                 "AttributeDescription \"%s\" "
1645                                 "must be a subtype of \"labeledURI\"",
1646                                 c->argv[ 2 ] );
1647                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1648                                 c->log, c->cr_msg, 0 );
1649                         return 1;
1650                 }
1651
1652                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1653                         *dlip; dlip = &(*dlip)->dli_next )
1654                 {
1655                         /*
1656                          * The same URL attribute / member attribute pair
1657                          * cannot be repeated, but we enforce this only
1658                          * when the member attribute is unique. Performing
1659                          * the check for multiple values would require
1660                          * sorting and comparing the lists, which is left
1661                          * as a future improvement
1662                          */
1663                         if ( (*dlip)->dli_ad == ad &&
1664                              (*dlip)->dli_dlm->dlm_next == NULL &&
1665                              member_ad == (*dlip)->dli_dlm->dlm_member_ad ) {
1666                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1667                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1668                                         "URL attributeDescription \"%s\" already mapped.\n",
1669                                         ad->ad_cname.bv_val );
1670                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1671                                         c->log, c->cr_msg, 0 );
1672 #if 0
1673                                 /* make it a warning... */
1674                                 return 1;
1675 #endif
1676                         }
1677                 }
1678
1679                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1680
1681                 (*dlip)->dli_oc = oc;
1682                 (*dlip)->dli_ad = ad;
1683                 (*dlip)->dli_dlm = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1684                 (*dlip)->dli_dlm->dlm_member_ad = member_ad;
1685                 (*dlip)->dli_dlm->dlm_mapped_ad = NULL;
1686
1687                 rc = dynlist_build_def_filter( *dlip );
1688
1689                 } break;
1690
1691         default:
1692                 rc = 1;
1693                 break;
1694         }
1695
1696         return rc;
1697 }
1698 #endif
1699
1700 static int
1701 dynlist_db_open(
1702         BackendDB       *be,
1703         ConfigReply     *cr )
1704 {
1705         slap_overinst           *on = (slap_overinst *) be->bd_info;
1706         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1707         ObjectClass             *oc = NULL;
1708         AttributeDescription    *ad = NULL;
1709         const char      *text;
1710         int rc;
1711
1712         if ( dli == NULL ) {
1713                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1714                 on->on_bi.bi_private = (void *)dli;
1715         }
1716
1717         for ( ; dli; dli = dli->dli_next ) {
1718                 if ( dli->dli_oc == NULL ) {
1719                         if ( oc == NULL ) {
1720                                 oc = oc_find( "groupOfURLs" );
1721                                 if ( oc == NULL ) {
1722                                         snprintf( cr->msg, sizeof( cr->msg),
1723                                                 "unable to fetch objectClass \"groupOfURLs\"" );
1724                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1725                                         return 1;
1726                                 }
1727                         }
1728
1729                         dli->dli_oc = oc;
1730                 }
1731
1732                 if ( dli->dli_ad == NULL ) {
1733                         if ( ad == NULL ) {
1734                                 rc = slap_str2ad( "memberURL", &ad, &text );
1735                                 if ( rc != LDAP_SUCCESS ) {
1736                                         snprintf( cr->msg, sizeof( cr->msg),
1737                                                 "unable to fetch attributeDescription \"memberURL\": %d (%s)",
1738                                                 rc, text );
1739                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1740                                         return 1;
1741                                 }
1742                         }
1743
1744                         dli->dli_ad = ad;
1745                 }
1746
1747                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1748                         rc = dynlist_build_def_filter( dli );
1749                         if ( rc != 0 ) {
1750                                 return rc;
1751                         }
1752                 }
1753         }
1754
1755         if ( ad_dgIdentity == NULL ) {
1756                 rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text );
1757                 if ( rc != LDAP_SUCCESS ) {
1758                         snprintf( cr->msg, sizeof( cr->msg),
1759                                 "unable to fetch attributeDescription \"dgIdentity\": %d (%s)",
1760                                 rc, text );
1761                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1762                         /* Just a warning */
1763                 }
1764         }
1765
1766         if ( ad_dgAuthz == NULL ) {
1767                 rc = slap_str2ad( "dgAuthz", &ad_dgAuthz, &text );
1768                 if ( rc != LDAP_SUCCESS ) {
1769                         snprintf( cr->msg, sizeof( cr->msg),
1770                                 "unable to fetch attributeDescription \"dgAuthz\": %d (%s)",
1771                                 rc, text );
1772                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1773                         /* Just a warning */
1774                 }
1775         }
1776
1777         return 0;
1778 }
1779
1780 static int
1781 dynlist_db_destroy(
1782         BackendDB       *be,
1783         ConfigReply     *cr )
1784 {
1785         slap_overinst   *on = (slap_overinst *) be->bd_info;
1786
1787         if ( on->on_bi.bi_private ) {
1788                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1789                                 *dli_next;
1790
1791                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1792                         dynlist_map_t *dlm;
1793                         dynlist_map_t *dlm_next;
1794
1795                         dli_next = dli->dli_next;
1796
1797                         if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1798                                 ch_free( dli->dli_uri.bv_val );
1799                         }
1800
1801                         if ( dli->dli_lud != NULL ) {
1802                                 ldap_free_urldesc( dli->dli_lud );
1803                         }
1804
1805                         if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) {
1806                                 ber_memfree( dli->dli_uri_nbase.bv_val );
1807                         }
1808
1809                         if ( dli->dli_uri_filter != NULL ) {
1810                                 filter_free( dli->dli_uri_filter );
1811                         }
1812
1813                         ch_free( dli->dli_default_filter.bv_val );
1814
1815                         dlm = dli->dli_dlm;
1816                         while ( dlm != NULL ) {
1817                                 dlm_next = dlm->dlm_next;
1818                                 ch_free( dlm );
1819                                 dlm = dlm_next;
1820                         }
1821                         ch_free( dli );
1822                 }
1823         }
1824
1825         return 0;
1826 }
1827
1828 static slap_overinst    dynlist = { { NULL } };
1829 #ifdef TAKEOVER_DYNGROUP
1830 static char             *obsolete_names[] = {
1831         "dyngroup",
1832         NULL
1833 };
1834 #endif
1835
1836 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1837 static
1838 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1839 int
1840 dynlist_initialize(void)
1841 {
1842 #ifndef OL_2_2_COMPAT
1843         int     rc = 0;
1844 #endif
1845
1846         dynlist.on_bi.bi_type = "dynlist";
1847
1848 #ifdef TAKEOVER_DYNGROUP
1849         /* makes dynlist incompatible with dyngroup */
1850         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1851 #endif
1852
1853 #ifdef OL_2_2_COMPAT
1854         dynlist.on_bi.bi_db_config = dynlist_db_config;
1855 #else
1856         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1857 #endif
1858         dynlist.on_bi.bi_db_open = dynlist_db_open;
1859         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1860
1861         dynlist.on_response = dynlist_response;
1862
1863 #ifndef OL_2_2_COMPAT
1864         dynlist.on_bi.bi_cf_ocs = dlocs;
1865
1866         rc = config_register_schema( dlcfg, dlocs );
1867         if ( rc ) {
1868                 return rc;
1869         }
1870 #endif
1871
1872         return overlay_register( &dynlist );
1873 }
1874
1875 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1876 int
1877 init_module( int argc, char *argv[] )
1878 {
1879         return dynlist_initialize();
1880 }
1881 #endif
1882
1883 #endif /* SLAPD_OVER_DYNLIST */