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 2003-2009 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                                 int d = rs->sr_entry->e_nname.bv_len - dli->dli_uri_nbase.bv_len;
 113
 114                                 if ( d < 0 ) {
 115                                         continue;
 116                                 }
 117
 118                                 if ( !dnIsSuffix( &rs->sr_entry->e_nname, &dli->dli_uri_nbase ) ) {
 119                                         continue;
 120                                 }
 121
 122                                 switch ( dli->dli_lud->lud_scope ) {
 123                                 case LDAP_SCOPE_BASE:
 124                                         if ( d != 0 ) {
 125                                                 continue;
 126                                         }
 127                                         break;
 128
 129                                 case LDAP_SCOPE_ONELEVEL: {
 130                                         struct berval pdn;
 131
 132                                         dnParent( &rs->sr_entry->e_nname, &pdn );
 133                                         if ( pdn.bv_len != dli->dli_uri_nbase.bv_len ) {
 134                                                 continue;
 135                                         }
 136                                         } break;
 137
 138                                 case LDAP_SCOPE_SUBORDINATE:
 139                                         if ( d == 0 ) {
 140                                                 continue;
 141                                         }
 142                                         break;
 143
 144                                 case LDAP_SCOPE_SUBTREE:
 145                                 case LDAP_SCOPE_DEFAULT:
 146                                         break;
 147
 148                                 default:
 149                                         continue;
 150                                 }
 151                         }
 152
 153                         /* check filter */
 154                         if ( dli->dli_uri_filter && test_filter( op, rs->sr_entry, dli->dli_uri_filter ) != LDAP_COMPARE_TRUE ) {
 155                                 continue;
 156                         }
 157                 }
 158
 159                 if ( attr_valfind( a,
 160                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 161                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 162                                 &dli->dli_oc->soc_cname, NULL,
 163                                 op->o_tmpmemctx ) == 0 )
 164                 {
 165                         return dli;
 166                 }
 167         }
 168
 169         return NULL;
 170 }
 171
 172 static int
 173 dynlist_make_filter( Operation *op, struct berval *oldf, struct berval *newf )
 174 {
 175         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 176         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 177
 178         char            *ptr;
 179
 180         assert( oldf != NULL );
 181         assert( newf != NULL );
 182         assert( !BER_BVISNULL( oldf ) );
 183         assert( !BER_BVISEMPTY( oldf ) );
 184
 185         newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" )
 186                 + dli->dli_oc->soc_cname.bv_len + oldf->bv_len;
 187         newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx );
 188         if ( newf->bv_val == NULL ) {
 189                 return -1;
 190         }
 191         ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" );
 192         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 193         ptr = lutil_strcopy( ptr, "))" );
 194         ptr = lutil_strcopy( ptr, oldf->bv_val );
 195         ptr = lutil_strcopy( ptr, ")" );
 196         newf->bv_len = ptr - newf->bv_val;
 197
 198         return 0;
 199 }
 200
 201 typedef struct dynlist_sc_t {
 202         dynlist_info_t    *dlc_dli;
 203         Entry           *dlc_e;
 204 } dynlist_sc_t;
 205
 206 static int
 207 dynlist_sc_update( Operation *op, SlapReply *rs )
 208 {
 209         Entry                   *e;
 210         Attribute               *a;
 211         int                     opattrs,
 212                                 userattrs;
 213         AccessControlState      acl_state = ACL_STATE_INIT;
 214
 215         dynlist_sc_t            *dlc;
 216         dynlist_map_t           *dlm;
 217
 218         if ( rs->sr_type != REP_SEARCH ) {
 219                 return 0;
 220         }
 221
 222         dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 223         e = dlc->dlc_e;
 224
 225         assert( e != NULL );
 226         assert( rs->sr_entry != NULL );
 227
 228         /* test access to entry */
 229         if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 230                                 NULL, ACL_READ, NULL ) )
 231         {
 232                 goto done;
 233         }
 234
 235         /* if there is only one member_ad, and it's not mapped,
 236          * consider it as old-style member listing */
 237         dlm = dlc->dlc_dli->dli_dlm;
 238         if ( dlm && dlm->dlm_mapped_ad == NULL && dlm->dlm_next == NULL ) {
 239                 /* if access allowed, try to add values, emulating permissive
 240                  * control to silently ignore duplicates */
 241                 if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 242                                         NULL, ACL_READ, NULL ) )
 243                 {
 244                         Modification    mod;
 245                         const char      *text = NULL;
 246                         char            textbuf[1024];
 247                         struct berval   vals[ 2 ], nvals[ 2 ];
 248
 249                         vals[ 0 ] = rs->sr_entry->e_name;
 250                         BER_BVZERO( &vals[ 1 ] );
 251                         nvals[ 0 ] = rs->sr_entry->e_nname;
 252                         BER_BVZERO( &nvals[ 1 ] );
 253
 254                         mod.sm_op = LDAP_MOD_ADD;
 255                         mod.sm_desc = dlm->dlm_member_ad;
 256                         mod.sm_type = dlm->dlm_member_ad->ad_cname;
 257                         mod.sm_values = vals;
 258                         mod.sm_nvalues = nvals;
 259                         mod.sm_numvals = 1;
 260
 261                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 262                                         &text, textbuf, sizeof( textbuf ) );
 263                 }
 264
 265                 goto done;
 266         }
 267
 268 #ifndef SLAP_OPATTRS
 269         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, slap_bv_operational_attrs );
 270         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, slap_bv_user_attrs );
 271 #else /* SLAP_OPATTRS */
 272         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 273         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 274 #endif /* SLAP_OPATTRS */
 275
 276         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 277                 BerVarray       vals, nvals = NULL;
 278                 int             i, j,
 279                                 is_oc = a->a_desc == slap_schema.si_ad_objectClass;
 280
 281                 /* if attribute is not requested, skip it */
 282                 if ( rs->sr_attrs == NULL ) {
 283                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 284                                 continue;
 285                         }
 286
 287                 } else {
 288                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 289                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 290                                 {
 291                                         continue;
 292                                 }
 293
 294                         } else {
 295                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 296                                 {
 297                                         continue;
 298                                 }
 299                         }
 300                 }
 301
 302                 /* test access to attribute */
 303                 if ( op->ors_attrsonly ) {
 304                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 305                                                 ACL_READ, &acl_state ) )
 306                         {
 307                                 continue;
 308                         }
 309                 }
 310
 311                 /* single-value check: keep first only */
 312                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 313                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 314                                 continue;
 315                         }
 316                 }
 317
 318                 /* test access to attribute */
 319                 i = a->a_numvals;
 320
 321                 vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 322                 if ( a->a_nvals != a->a_vals ) {
 323                         nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 324                 }
 325
 326                 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
 327                         if ( is_oc ) {
 328                                 ObjectClass     *soc = oc_bvfind( &a->a_vals[i] );
 329
 330                                 if ( soc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 331                                         continue;
 332                                 }
 333                         }
 334
 335                         if ( access_allowed( op, rs->sr_entry, a->a_desc,
 336                                                 &a->a_nvals[i], ACL_READ, &acl_state ) )
 337                         {
 338                                 vals[j] = a->a_vals[i];
 339                                 if ( nvals ) {
 340                                         nvals[j] = a->a_nvals[i];
 341                                 }
 342                                 j++;
 343                         }
 344                 }
 345
 346                 /* if access allowed, try to add values, emulating permissive
 347                  * control to silently ignore duplicates */
 348                 if ( j != 0 ) {
 349                         Modification    mod;
 350                         const char      *text = NULL;
 351                         char            textbuf[1024];
 352                         dynlist_map_t   *dlm;
 353                         AttributeDescription *ad;
 354
 355                         BER_BVZERO( &vals[j] );
 356                         if ( nvals ) {
 357                                 BER_BVZERO( &nvals[j] );
 358                         }
 359
 360                         ad = a->a_desc;
 361                         for ( dlm = dlc->dlc_dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 362                                 if ( dlm->dlm_member_ad == a->a_desc ) {
 363                                         if ( dlm->dlm_mapped_ad ) {
 364                                                 ad = dlm->dlm_mapped_ad;
 365                                         }
 366                                         break;
 367                                 }
 368                         }
 369
 370                         mod.sm_op = LDAP_MOD_ADD;
 371                         mod.sm_desc = ad;
 372                         mod.sm_type = ad->ad_cname;
 373                         mod.sm_values = vals;
 374                         mod.sm_nvalues = nvals;
 375                         mod.sm_numvals = j;
 376
 377                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 378                                         &text, textbuf, sizeof( textbuf ) );
 379                 }
 380
 381                 op->o_tmpfree( vals, op->o_tmpmemctx );
 382                 if ( nvals ) {
 383                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 384                 }
 385         }
 386
 387 done:;
 388         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 389                 entry_free( rs->sr_entry );
 390                 rs->sr_entry = NULL;
 391                 rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
 392         }
 393
 394         return 0;
 395 }
 396
 397 static int
 398 dynlist_prepare_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 399 {
 400         Attribute       *a, *id = NULL;
 401         slap_callback   cb;
 402         Operation       o = *op;
 403         SlapReply       r = { REP_SEARCH };
 404         struct berval   *url;
 405         Entry           *e;
 406         slap_mask_t     e_flags;
 407         int             opattrs,
 408                         userattrs;
 409         dynlist_sc_t    dlc = { 0 };
 410         dynlist_map_t   *dlm;
 411
 412         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 413         if ( a == NULL ) {
 414                 /* FIXME: error? */
 415                 return SLAP_CB_CONTINUE;
 416         }
 417
 418 #ifndef SLAP_OPATTRS
 419         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, slap_bv_operational_attrs );
 420         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, slap_bv_user_attrs );
 421 #else /* SLAP_OPATTRS */
 422         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 423         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 424 #endif /* SLAP_OPATTRS */
 425
 426         /* Don't generate member list if it wasn't requested */
 427         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 428                 AttributeDescription *ad = dlm->dlm_mapped_ad ? dlm->dlm_mapped_ad : dlm->dlm_member_ad;
 429                 if ( userattrs || ad_inlist( ad, rs->sr_attrs ) )
 430                         break;
 431         }
 432         if ( dli->dli_dlm && !dlm )
 433                 return SLAP_CB_CONTINUE;
 434
 435         if ( ad_dgIdentity && ( id = attrs_find( rs->sr_entry->e_attrs, ad_dgIdentity ))) {
 436                 Attribute *authz = NULL;
 437
 438                 /* if not rootdn and dgAuthz is present,
 439                  * check if user can be authorized as dgIdentity */
 440                 if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 441                         && ( authz = attrs_find( rs->sr_entry->e_attrs, ad_dgAuthz ) ) )
 442                 {
 443                         if ( slap_sasl_matches( op, authz->a_nvals,
 444                                 &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 445                         {
 446                                 return SLAP_CB_CONTINUE;
 447                         }
 448                 }
 449
 450                 o.o_dn = id->a_vals[0];
 451                 o.o_ndn = id->a_nvals[0];
 452                 o.o_groups = NULL;
 453         }
 454
 455         e_flags = rs->sr_flags;
 456         if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
 457                 e = entry_dup( rs->sr_entry );
 458                 e_flags |= ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 459         } else {
 460                 e = rs->sr_entry;
 461         }
 462
 463         dlc.dlc_e = e;
 464         dlc.dlc_dli = dli;
 465         cb.sc_private = &dlc;
 466         cb.sc_response = dynlist_sc_update;
 467         cb.sc_cleanup = NULL;
 468         cb.sc_next = NULL;
 469
 470         o.o_callback = &cb;
 471         o.ors_deref = LDAP_DEREF_NEVER;
 472         o.ors_limit = NULL;
 473         o.ors_tlimit = SLAP_NO_LIMIT;
 474         o.ors_slimit = SLAP_NO_LIMIT;
 475
 476         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 477                 LDAPURLDesc     *lud = NULL;
 478                 int             i, j;
 479                 struct berval   dn;
 480                 int             rc;
 481
 482                 BER_BVZERO( &o.o_req_dn );
 483                 BER_BVZERO( &o.o_req_ndn );
 484                 o.ors_filter = NULL;
 485                 o.ors_attrs = NULL;
 486                 BER_BVZERO( &o.ors_filterstr );
 487
 488                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 489                         /* FIXME: error? */
 490                         continue;
 491                 }
 492
 493                 if ( lud->lud_host != NULL ) {
 494                         /* FIXME: host not allowed; reject as illegal? */
 495                         Debug( LDAP_DEBUG_ANY, "dynlist_prepare_entry(\"%s\"): "
 496                                 "illegal URI \"%s\"\n",
 497                                 e->e_name.bv_val, url->bv_val, 0 );
 498                         goto cleanup;
 499                 }
 500
 501                 if ( lud->lud_dn == NULL ) {
 502                         /* note that an empty base is not honored in terms
 503                          * of defaultSearchBase, because select_backend()
 504                          * is not aware of the defaultSearchBase option;
 505                          * this can be useful in case of a database serving
 506                          * the empty suffix */
 507                         BER_BVSTR( &dn, "" );
 508
 509                 } else {
 510                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 511                 }
 512                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 513                 if ( rc != LDAP_SUCCESS ) {
 514                         /* FIXME: error? */
 515                         goto cleanup;
 516                 }
 517                 o.ors_scope = lud->lud_scope;
 518
 519                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 520                         if ( dlm->dlm_mapped_ad != NULL ) {
 521                                 break;
 522                         }
 523                 }
 524
 525                 if ( dli->dli_dlm && !dlm ) {
 526                         /* if ( lud->lud_attrs != NULL ),
 527                          * the URL should be ignored */
 528                         o.ors_attrs = slap_anlist_no_attrs;
 529
 530                 } else if ( lud->lud_attrs == NULL ) {
 531                         o.ors_attrs = rs->sr_attrs;
 532
 533                 } else {
 534                         for ( i = 0; lud->lud_attrs[i]; i++)
 535                                 /* just count */ ;
 536
 537                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 538                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 539                                 const char      *text = NULL;
 540
 541                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 542                                 o.ors_attrs[j].an_desc = NULL;
 543                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 544                                 /* FIXME: ignore errors... */
 545
 546                                 if ( rs->sr_attrs == NULL ) {
 547                                         if ( o.ors_attrs[j].an_desc != NULL &&
 548                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 549                                         {
 550                                                 continue;
 551                                         }
 552
 553                                 } else {
 554                                         if ( o.ors_attrs[j].an_desc != NULL &&
 555                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 556                                         {
 557                                                 if ( !opattrs ) {
 558                                                         continue;
 559                                                 }
 560
 561                                                 if ( !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) ) {
 562                                                         /* lookup if mapped -- linear search,
 563                                                          * not very efficient unless list
 564                                                          * is very short */
 565                                                         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 566                                                                 if ( dlm->dlm_member_ad == o.ors_attrs[j].an_desc ) {
 567                                                                         break;
 568                                                                 }
 569                                                         }
 570
 571                                                         if ( dlm == NULL ) {
 572                                                                 continue;
 573                                                         }
 574                                                 }
 575
 576                                         } else {
 577                                                 if ( !userattrs &&
 578                                                                 o.ors_attrs[j].an_desc != NULL &&
 579                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 580                                                 {
 581                                                         /* lookup if mapped -- linear search,
 582                                                          * not very efficient unless list
 583                                                          * is very short */
 584                                                         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 585                                                                 if ( dlm->dlm_member_ad == o.ors_attrs[j].an_desc ) {
 586                                                                         break;
 587                                                                 }
 588                                                         }
 589
 590                                                         if ( dlm == NULL ) {
 591                                                                 continue;
 592                                                         }
 593                                                 }
 594                                         }
 595                                 }
 596
 597                                 j++;
 598                         }
 599
 600                         if ( j == 0 ) {
 601                                 goto cleanup;
 602                         }
 603
 604                         BER_BVZERO( &o.ors_attrs[j].an_name );
 605                 }
 606
 607                 if ( lud->lud_filter == NULL ) {
 608                         ber_dupbv_x( &o.ors_filterstr,
 609                                         &dli->dli_default_filter, op->o_tmpmemctx );
 610
 611                 } else {
 612                         struct berval   flt;
 613                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 614                         if ( dynlist_make_filter( op, &flt, &o.ors_filterstr ) ) {
 615                                 /* error */
 616                                 goto cleanup;
 617                         }
 618                 }
 619                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 620                 if ( o.ors_filter == NULL ) {
 621                         goto cleanup;
 622                 }
 623
 624                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 625                 if ( o.o_bd && o.o_bd->be_search ) {
 626 #ifdef SLAP_OPATTRS
 627                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 628 #endif /* SLAP_OPATTRS */
 629                         (void)o.o_bd->be_search( &o, &r );
 630                 }
 631
 632 cleanup:;
 633                 if ( id ) {
 634                         slap_op_groups_free( &o );
 635                 }
 636                 if ( o.ors_filter ) {
 637                         filter_free_x( &o, o.ors_filter, 1 );
 638                 }
 639                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 640                                 && o.ors_attrs != slap_anlist_no_attrs )
 641                 {
 642                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 643                 }
 644                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 645                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 646                 }
 647                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 648                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 649                 }
 650                 assert( BER_BVISNULL( &o.ors_filterstr )
 651                         || o.ors_filterstr.bv_val != lud->lud_filter );
 652                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 653                 ldap_free_urldesc( lud );
 654         }
 655
 656         rs->sr_entry = e;
 657         rs->sr_flags = e_flags;
 658
 659         return SLAP_CB_CONTINUE;
 660 }
 661
 662 static int
 663 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 664 {
 665         /* save the entry in the private field of the callback,
 666          * so it doesn't get freed (it's temporary!) */
 667         if ( rs->sr_entry != NULL ) {
 668                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 669                 dlc->dlc_e = rs->sr_entry;
 670                 rs->sr_entry = NULL;
 671         }
 672
 673         return 0;
 674 }
 675
 676 static int
 677 dynlist_compare( Operation *op, SlapReply *rs )
 678 {
 679         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 680         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 681         Operation o = *op;
 682         Entry *e = NULL;
 683         dynlist_map_t *dlm;
 684
 685         for ( ; dli != NULL; dli = dli->dli_next ) {
 686                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next )
 687                         if ( op->oq_compare.rs_ava->aa_desc == dlm->dlm_member_ad )
 688                                 break;
 689
 690                 if ( dli->dli_dlm && dlm ) {
 691                         /* This compare is for one of the attributes we're
 692                          * interested in. We'll use slapd's existing dyngroup
 693                          * evaluator to get the answer we want.
 694                          */
 695                         BerVarray id = NULL, authz = NULL;
 696
 697                         o.o_do_not_cache = 1;
 698
 699                         if ( ad_dgIdentity && backend_attribute( &o, NULL, &o.o_req_ndn,
 700                                 ad_dgIdentity, &id, ACL_READ ) == LDAP_SUCCESS )
 701                         {
 702                                 /* if not rootdn and dgAuthz is present,
 703                                  * check if user can be authorized as dgIdentity */
 704                                 if ( ad_dgAuthz && !BER_BVISEMPTY( id ) && !be_isroot( op )
 705                                         && backend_attribute( &o, NULL, &o.o_req_ndn,
 706                                                 ad_dgAuthz, &authz, ACL_READ ) == LDAP_SUCCESS )
 707                                 {
 708
 709                                         rs->sr_err = slap_sasl_matches( op, authz,
 710                                                 &o.o_ndn, &o.o_ndn );
 711                                         ber_bvarray_free_x( authz, op->o_tmpmemctx );
 712                                         if ( rs->sr_err != LDAP_SUCCESS ) {
 713                                                 goto done;
 714                                         }
 715                                 }
 716
 717                                 o.o_dn = *id;
 718                                 o.o_ndn = *id;
 719                                 o.o_groups = NULL; /* authz changed, invalidate cached groups */
 720                         }
 721
 722                         rs->sr_err = backend_group( &o, NULL, &o.o_req_ndn,
 723                                 &o.oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 724                         switch ( rs->sr_err ) {
 725                         case LDAP_SUCCESS:
 726                                 rs->sr_err = LDAP_COMPARE_TRUE;
 727                                 break;
 728
 729                         case LDAP_NO_SUCH_OBJECT:
 730                                 /* NOTE: backend_group() returns noSuchObject
 731                                  * if op_ndn does not exist; however, since
 732                                  * dynamic list expansion means that the
 733                                  * member attribute is virtually present, the
 734                                  * non-existence of the asserted value implies
 735                                  * the assertion is FALSE rather than
 736                                  * UNDEFINED */
 737                                 rs->sr_err = LDAP_COMPARE_FALSE;
 738                                 break;
 739                         }
 740
 741 done:;
 742                         if ( id ) ber_bvarray_free_x( id, o.o_tmpmemctx );
 743
 744                         return SLAP_CB_CONTINUE;
 745                 }
 746         }
 747
 748         if ( overlay_entry_get_ov( &o, &o.o_req_ndn, NULL, NULL, 0, &e, on ) !=
 749                 LDAP_SUCCESS || e == NULL )
 750         {
 751                 return SLAP_CB_CONTINUE;
 752         }
 753
 754         if ( ad_dgIdentity ) {
 755                 Attribute *id = attrs_find( e->e_attrs, ad_dgIdentity );
 756                 if ( id ) {
 757                         Attribute *authz;
 758
 759                         /* if not rootdn and dgAuthz is present,
 760                          * check if user can be authorized as dgIdentity */
 761                         if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 762                                 && ( authz = attrs_find( e->e_attrs, ad_dgAuthz ) ) )
 763                         {
 764                                 if ( slap_sasl_matches( op, authz->a_nvals,
 765                                         &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 766                                 {
 767                                         goto release;
 768                                 }
 769                         }
 770
 771                         o.o_dn = id->a_vals[0];
 772                         o.o_ndn = id->a_nvals[0];
 773                         o.o_groups = NULL;
 774                 }
 775         }
 776
 777         dli = (dynlist_info_t *)on->on_bi.bi_private;
 778         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 779                 Attribute       *a;
 780                 slap_callback   cb;
 781                 SlapReply       r = { REP_SEARCH };
 782                 AttributeName   an[2];
 783                 int             rc;
 784                 dynlist_sc_t    dlc = { 0 };
 785
 786                 if ( !is_entry_objectclass_or_sub( e, dli->dli_oc ))
 787                         continue;
 788
 789                 /* if the entry has the right objectClass, generate
 790                  * the dynamic list and compare */
 791                 dlc.dlc_dli = dli;
 792                 cb.sc_private = &dlc;
 793                 cb.sc_response = dynlist_sc_save_entry;
 794                 cb.sc_cleanup = NULL;
 795                 cb.sc_next = NULL;
 796                 o.o_callback = &cb;
 797
 798                 o.o_tag = LDAP_REQ_SEARCH;
 799                 o.ors_limit = NULL;
 800                 o.ors_tlimit = SLAP_NO_LIMIT;
 801                 o.ors_slimit = SLAP_NO_LIMIT;
 802
 803                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 804                 if ( !o.o_bd || !o.o_bd->be_search ) {
 805                         goto release;
 806                 }
 807
 808                 o.ors_filterstr = *slap_filterstr_objectClass_pres;
 809                 o.ors_filter = (Filter *) slap_filter_objectClass_pres;
 810
 811                 o.ors_scope = LDAP_SCOPE_BASE;
 812                 o.ors_deref = LDAP_DEREF_NEVER;
 813                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 814                 an[0].an_desc = op->orc_ava->aa_desc;
 815                 BER_BVZERO( &an[1].an_name );
 816                 o.ors_attrs = an;
 817                 o.ors_attrsonly = 0;
 818
 819                 o.o_acl_priv = ACL_COMPARE;
 820
 821                 rc = o.o_bd->be_search( &o, &r );
 822
 823                 if ( o.o_dn.bv_val != op->o_dn.bv_val ) {
 824                         slap_op_groups_free( &o );
 825                 }
 826
 827                 if ( rc != 0 ) {
 828                         goto release;
 829                 }
 830
 831                 if ( dlc.dlc_e != NULL ) {
 832                         r.sr_entry = dlc.dlc_e;
 833                 }
 834
 835                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 836                         /* error? */
 837                         goto release;
 838                 }
 839
 840                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 841                         a != NULL;
 842                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 843                 {
 844                         /* if we're here, we got a match... */
 845                         rs->sr_err = LDAP_COMPARE_FALSE;
 846
 847                         if ( attr_valfind( a,
 848                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 849                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 850                                 &op->orc_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
 851                         {
 852                                 rs->sr_err = LDAP_COMPARE_TRUE;
 853                                 break;
 854                         }
 855                 }
 856
 857                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 858                         entry_free( r.sr_entry );
 859                         r.sr_entry = NULL;
 860                         r.sr_flags ^= REP_ENTRY_MUSTBEFREED;
 861                 }
 862         }
 863
 864 release:;
 865         if ( e != NULL ) {
 866                 overlay_entry_release_ov( &o, e, 0, on );
 867         }
 868
 869         return SLAP_CB_CONTINUE;
 870 }
 871
 872 static int
 873 dynlist_response( Operation *op, SlapReply *rs )
 874 {
 875         dynlist_info_t  *dli;
 876
 877         switch ( op->o_tag ) {
 878         case LDAP_REQ_SEARCH:
 879                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 880                 {
 881                         int     rc = LDAP_OTHER;
 882
 883                         for ( dli = dynlist_is_dynlist_next( op, rs, NULL );
 884                                 dli;
 885                                 dli = dynlist_is_dynlist_next( op, rs, dli ) )
 886                         {
 887                                 rc = dynlist_prepare_entry( op, rs, dli );
 888                         }
 889
 890                         if ( rc != LDAP_OTHER ) {
 891                                 return rc;
 892                         }
 893                 }
 894                 break;
 895
 896         case LDAP_REQ_COMPARE:
 897                 switch ( rs->sr_err ) {
 898                 /* NOTE: we waste a few cycles running the dynamic list
 899                  * also when the result is FALSE, which occurs if the
 900                  * dynamic entry itself contains the AVA attribute  */
 901                 /* FIXME: this approach is less than optimal; a dedicated
 902                  * compare op should be implemented, that fetches the
 903                  * entry, checks if it has the appropriate objectClass
 904                  * and, in case, runs a compare thru all the URIs,
 905                  * stopping at the first positive occurrence; see ITS#3756 */
 906                 case LDAP_COMPARE_FALSE:
 907                 case LDAP_NO_SUCH_ATTRIBUTE:
 908                         return dynlist_compare( op, rs );
 909                 }
 910                 break;
 911
 912         default:
 913                 break;
 914         }
 915
 916         return SLAP_CB_CONTINUE;
 917 }
 918
 919 static int
 920 dynlist_build_def_filter( dynlist_info_t *dli )
 921 {
 922         char    *ptr;
 923
 924         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 925                 + dli->dli_oc->soc_cname.bv_len;
 926         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 927         if ( dli->dli_default_filter.bv_val == NULL ) {
 928                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 929                         0, 0, 0 );
 930                 return -1;
 931         }
 932
 933         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 934         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 935         ptr = lutil_strcopy( ptr, "))" );
 936
 937         assert( ptr == &dli->dli_default_filter.bv_val[dli->dli_default_filter.bv_len] );
 938
 939         return 0;
 940 }
 941
 942 #ifdef OL_2_2_COMPAT
 943 static int
 944 dynlist_db_config(
 945         BackendDB       *be,
 946         const char      *fname,
 947         int             lineno,
 948         int             argc,
 949         char            **argv )
 950 {
 951         slap_overinst   *on = (slap_overinst *)be->bd_info;
 952
 953         int             rc = 0;
 954
 955         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 956                 dynlist_info_t          **dlip;
 957                 ObjectClass             *oc;
 958                 AttributeDescription    *ad = NULL,
 959                                         *member_ad = NULL;
 960                 dynlist_map_t           *dlm = NULL, *dlml = NULL;
 961                 const char              *text;
 962
 963                 if ( argc < 3 ) {
 964                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 965                                 "invalid arg number #%d.\n",
 966                                 fname, lineno, argc );
 967                         return 1;
 968                 }
 969
 970                 oc = oc_find( argv[1] );
 971                 if ( oc == NULL ) {
 972                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 973                                 "unable to find ObjectClass \"%s\"\n",
 974                                 fname, lineno, argv[ 1 ] );
 975                         return 1;
 976                 }
 977
 978                 rc = slap_str2ad( argv[2], &ad, &text );
 979                 if ( rc != LDAP_SUCCESS ) {
 980                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 981                                 "unable to find AttributeDescription \"%s\"\n",
 982                                 fname, lineno, argv[2] );
 983                         return 1;
 984                 }
 985
 986                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 987                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 988                                 "AttributeDescription \"%s\" "
 989                                 "must be a subtype of \"labeledURI\"\n",
 990                                 fname, lineno, argv[2] );
 991                         return 1;
 992                 }
 993
 994                 for ( i = 3; i < argc; i++ ) {
 995                         char *arg;
 996                         char *cp;
 997                         AttributeDescription *member_ad = NULL;
 998                         AttributeDescription *mapped_ad = NULL;
 999                         dynlist_map_t *dlmp;
1000
1001
1002                         /*
1003                          * If no mapped attribute is given, dn is used
1004                          * for backward compatibility.
1005                          */
1006                         arg = argv[i];
1007                         if ( cp = strchr( arg, (int)':' ) != NULL ) {
1008                                 struct berval bv;
1009                                 ber_str2bv( arg, cp - arg, 0, &bv );
1010                                 rc = slap_bv2ad( &bv, &mapped_ad, &text );
1011                                 if ( rc != LDAP_SUCCESS ) {
1012                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1013                                                 DYNLIST_USAGE
1014                                                 "unable to find mapped AttributeDescription \"%s\"\n",
1015                                                 fname, lineno, arg );
1016                                         return 1;
1017                                 }
1018
1019                                 arg = cp + 1;
1020                         }
1021
1022                         rc = slap_str2ad( arg, &member_ad, &text );
1023                         if ( rc != LDAP_SUCCESS ) {
1024                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1025                                         DYNLIST_USAGE
1026                                         "unable to find AttributeDescription \"%s\"\n",
1027                                         fname, lineno, arg );
1028                                 return 1;
1029                         }
1030
1031                         dlmp = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1032                         if ( dlm == NULL ) {
1033                                 dlm = dlmp;
1034                         }
1035                         dlmp->dlm_member_ad = member_ad;
1036                         dlmp->dlm_mapped_ad = mapped_ad;
1037                         dlmp->dlm_next = NULL;
1038
1039                         if ( dlml != NULL )
1040                                 dlml->dlm_next = dlmp;
1041                         dlml = dlmp;
1042                 }
1043
1044                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1045                         *dlip; dlip = &(*dlip)->dli_next )
1046                 {
1047                         /*
1048                          * The same URL attribute / member attribute pair
1049                          * cannot be repeated, but we enforce this only
1050                          * when the member attribute is unique. Performing
1051                          * the check for multiple values would require
1052                          * sorting and comparing the lists, which is left
1053                          * as a future improvement
1054                          */
1055                         if ( (*dlip)->dli_ad == ad &&
1056                              (*dlip)->dli_dlm->dlm_next == NULL &&
1057                              dlm->dlm_next == NULL &&
1058                              dlm->dlm_member_ad == (*dlip)->dli_dlm->dlm_member_ad &&
1059                              dlm->dlm_mapped_ad == (*dlip)->dli_dlm->dlm_mapped_ad ) {
1060                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1061                                         DYNLIST_USAGE
1062                                         "URL attributeDescription \"%s\" already mapped.\n",
1063                                         fname, lineno, ad->ad_cname.bv_val );
1064 #if 0
1065                                 /* make it a warning... */
1066                                 return 1;
1067 #endif
1068                         }
1069                 }
1070
1071                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1072                 (*dlip)->dli_oc = oc;
1073                 (*dlip)->dli_ad = ad;
1074                 (*dlip)->dli_dlm = dlm;
1075
1076                 if ( dynlist_build_def_filter( *dlip ) ) {
1077                         dynlist_map_t *dlm = (*dlip)->ldi_dlm;
1078                         dynlist_map_t *dlm_next;
1079
1080                         while ( dlm != NULL ) {
1081                                 dlm_next = dlm->dlm_next;
1082                                 ch_free( dlm );
1083                                 dlm = dlm_next;
1084                         }
1085
1086                         ch_free( *dlip );
1087                         *dlip = NULL;
1088                         return 1;
1089                 }
1090
1091         /* allow dyngroup syntax */
1092         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
1093                 dynlist_info_t          **dlip;
1094                 ObjectClass             *oc;
1095                 AttributeDescription    *ad = NULL,
1096                                         *member_ad = NULL;
1097                 const char              *text;
1098
1099                 if ( argc != 3 ) {
1100                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1101                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1102                                 "invalid arg number #%d.\n",
1103                                 fname, lineno, argc );
1104                         return 1;
1105                 }
1106
1107                 oc = oc_find( "groupOfURLs" );
1108                 if ( oc == NULL ) {
1109                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1110                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1111                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
1112                                 fname, lineno, 0 );
1113                         return 1;
1114                 }
1115
1116                 rc = slap_str2ad( argv[1], &member_ad, &text );
1117                 if ( rc != LDAP_SUCCESS ) {
1118                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1119                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1120                                 "unable to find AttributeDescription \"%s\"\n",
1121                                 fname, lineno, argv[1] );
1122                         return 1;
1123                 }
1124
1125                 rc = slap_str2ad( argv[2], &ad, &text );
1126                 if ( rc != LDAP_SUCCESS ) {
1127                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1128                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1129                                 "unable to find AttributeDescription \"%s\"\n",
1130                                 fname, lineno, argv[2] );
1131                         return 1;
1132                 }
1133
1134                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1135                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1136                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1137                                 "AttributeDescription \"%s\" "
1138                                 "must be a subtype of \"labeledURI\"\n",
1139                                 fname, lineno, argv[2] );
1140                         return 1;
1141                 }
1142
1143                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1144                         *dlip; dlip = &(*dlip)->dli_next )
1145                 {
1146                         /*
1147                          * The same URL attribute / member attribute pair
1148                          * cannot be repeated, but we enforce this only
1149                          * when the member attribute is unique. Performing
1150                          * the check for multiple values would require
1151                          * sorting and comparing the lists, which is left
1152                          * as a future improvement
1153                          */
1154                         if ( (*dlip)->dli_ad == ad &&
1155                              (*dlip)->dli_dlm->dlm_next == NULL &&
1156                              member_ad == (*dlip)->dli_dlm->dlm_member_ad ) {
1157                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1158                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1159                                         "URL attributeDescription \"%s\" already mapped.\n",
1160                                         fname, lineno, ad->ad_cname.bv_val );
1161 #if 0
1162                                 /* make it a warning... */
1163                                 return 1;
1164 #endif
1165                         }
1166                 }
1167
1168                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1169                 (*dlip)->dli_oc = oc;
1170                 (*dlip)->dli_ad = ad;
1171                 (*dlip)->dli_dlm = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1172                 (*dlip)->dli_dlm->dlm_member_ad = member_ad;
1173                 (*dlip)->dli_dlm->dlm_mapped_ad = NULL;
1174
1175                 if ( dynlist_build_def_filter( *dlip ) ) {
1176                         ch_free( (*dlip)->dli_dlm );
1177                         ch_free( *dlip );
1178                         *dlip = NULL;
1179                         return 1;
1180                 }
1181
1182         } else {
1183                 rc = SLAP_CONF_UNKNOWN;
1184         }
1185
1186         return rc;
1187 }
1188
1189 #else
1190 enum {
1191         DL_ATTRSET = 1,
1192         DL_ATTRPAIR,
1193         DL_ATTRPAIR_COMPAT,
1194         DL_LAST
1195 };
1196
1197 static ConfigDriver     dl_cfgen;
1198
1199 /* XXXmanu 255 is the maximum arguments we allow. Can we go beyond? */
1200 static ConfigTable dlcfg[] = {
1201         { "dynlist-attrset", "group-oc> [uri] <URL-ad> <[mapped:]member-ad> [...]",
1202                 3, 0, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
1203                 "( OLcfgOvAt:8.1 NAME 'olcDlAttrSet' "
1204                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
1205                         "EQUALITY caseIgnoreMatch "
1206                         "SYNTAX OMsDirectoryString "
1207                         "X-ORDERED 'VALUES' )",
1208                         NULL, NULL },
1209         { "dynlist-attrpair", "member-ad> <URL-ad",
1210                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
1211                         NULL, NULL, NULL },
1212 #ifdef TAKEOVER_DYNGROUP
1213         { "attrpair", "member-ad> <URL-ad",
1214                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
1215                         NULL, NULL, NULL },
1216 #endif
1217         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1218 };
1219
1220 static ConfigOCs dlocs[] = {
1221         { "( OLcfgOvOc:8.1 "
1222                 "NAME 'olcDynamicList' "
1223                 "DESC 'Dynamic list configuration' "
1224                 "SUP olcOverlayConfig "
1225                 "MAY olcDLattrSet )",
1226                 Cft_Overlay, dlcfg, NULL, NULL },
1227         { NULL, 0, NULL }
1228 };
1229
1230 static int
1231 dl_cfgen( ConfigArgs *c )
1232 {
1233         slap_overinst   *on = (slap_overinst *)c->bi;
1234         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
1235
1236         int             rc = 0, i;
1237
1238         if ( c->op == SLAP_CONFIG_EMIT ) {
1239                 switch( c->type ) {
1240                 case DL_ATTRSET:
1241                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
1242                                 struct berval   bv;
1243                                 char            *ptr = c->cr_msg;
1244                                 dynlist_map_t   *dlm;
1245
1246                                 assert( dli->dli_oc != NULL );
1247                                 assert( dli->dli_ad != NULL );
1248
1249                                 /* FIXME: check buffer overflow! */
1250                                 ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ),
1251                                         SLAP_X_ORDERED_FMT "%s", i,
1252                                         dli->dli_oc->soc_cname.bv_val );
1253
1254                                 if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1255                                         *ptr++ = ' ';
1256                                         *ptr++ = '"';
1257                                         ptr = lutil_strncopy( ptr, dli->dli_uri.bv_val,
1258                                                 dli->dli_uri.bv_len );
1259                                         *ptr++ = '"';
1260                                 }
1261
1262                                 *ptr++ = ' ';
1263                                 ptr = lutil_strncopy( ptr, dli->dli_ad->ad_cname.bv_val,
1264                                         dli->dli_ad->ad_cname.bv_len );
1265
1266                                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
1267                                         ptr[ 0 ] = ' ';
1268                                         ptr++;
1269                                         if ( dlm->dlm_mapped_ad ) {
1270                                                 ptr = lutil_strcopy( ptr, dlm->dlm_mapped_ad->ad_cname.bv_val );
1271                                                 ptr[ 0 ] = ':';
1272                                                 ptr++;
1273                                         }
1274
1275                                         ptr = lutil_strcopy( ptr, dlm->dlm_member_ad->ad_cname.bv_val );
1276                                 }
1277
1278                                 bv.bv_val = c->cr_msg;
1279                                 bv.bv_len = ptr - bv.bv_val;
1280                                 value_add_one( &c->rvalue_vals, &bv );
1281                         }
1282                         break;
1283
1284                 case DL_ATTRPAIR_COMPAT:
1285                 case DL_ATTRPAIR:
1286                         rc = 1;
1287                         break;
1288
1289                 default:
1290                         rc = 1;
1291                         break;
1292                 }
1293
1294                 return rc;
1295
1296         } else if ( c->op == LDAP_MOD_DELETE ) {
1297                 switch( c->type ) {
1298                 case DL_ATTRSET:
1299                         if ( c->valx < 0 ) {
1300                                 dynlist_info_t  *dli_next;
1301
1302                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1303                                         dynlist_map_t *dlm = dli->dli_dlm;
1304                                         dynlist_map_t *dlm_next;
1305
1306                                         dli_next = dli->dli_next;
1307
1308                                         if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1309                                                 ch_free( dli->dli_uri.bv_val );
1310                                         }
1311
1312                                         if ( dli->dli_lud != NULL ) {
1313                                                 ldap_free_urldesc( dli->dli_lud );
1314                                         }
1315
1316                                         if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) {
1317                                                 ber_memfree( dli->dli_uri_nbase.bv_val );
1318                                         }
1319
1320                                         if ( dli->dli_uri_filter != NULL ) {
1321                                                 filter_free( dli->dli_uri_filter );
1322                                         }
1323
1324                                         ch_free( dli->dli_default_filter.bv_val );
1325
1326                                         while ( dlm != NULL ) {
1327                                                 dlm_next = dlm->dlm_next;
1328                                                 ch_free( dlm );
1329                                                 dlm = dlm_next;
1330                                         }
1331                                         ch_free( dli );
1332                                 }
1333
1334                                 on->on_bi.bi_private = NULL;
1335
1336                         } else {
1337                                 dynlist_info_t  **dlip;
1338                                 dynlist_map_t *dlm;
1339                                 dynlist_map_t *dlm_next;
1340
1341                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1342                                         i < c->valx; i++ )
1343                                 {
1344                                         if ( *dlip == NULL ) {
1345                                                 return 1;
1346                                         }
1347                                         dlip = &(*dlip)->dli_next;
1348                                 }
1349
1350                                 dli = *dlip;
1351                                 *dlip = dli->dli_next;
1352
1353                                 if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1354                                         ch_free( dli->dli_uri.bv_val );
1355                                 }
1356
1357                                 if ( dli->dli_lud != NULL ) {
1358                                         ldap_free_urldesc( dli->dli_lud );
1359                                 }
1360
1361                                 if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) {
1362                                         ber_memfree( dli->dli_uri_nbase.bv_val );
1363                                 }
1364
1365                                 if ( dli->dli_uri_filter != NULL ) {
1366                                         filter_free( dli->dli_uri_filter );
1367                                 }
1368
1369                                 ch_free( dli->dli_default_filter.bv_val );
1370
1371                                 dlm = dli->dli_dlm;
1372                                 while ( dlm != NULL ) {
1373                                         dlm_next = dlm->dlm_next;
1374                                         ch_free( dlm );
1375                                         dlm = dlm_next;
1376                                 }
1377                                 ch_free( dli );
1378
1379                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1380                         }
1381                         break;
1382
1383                 case DL_ATTRPAIR_COMPAT:
1384                 case DL_ATTRPAIR:
1385                         rc = 1;
1386                         break;
1387
1388                 default:
1389                         rc = 1;
1390                         break;
1391                 }
1392
1393                 return rc;
1394         }
1395
1396         switch( c->type ) {
1397         case DL_ATTRSET: {
1398                 dynlist_info_t          **dlip,
1399                                         *dli_next = NULL;
1400                 ObjectClass             *oc = NULL;
1401                 AttributeDescription    *ad = NULL;
1402                 int                     attridx = 2;
1403                 LDAPURLDesc             *lud = NULL;
1404                 struct berval           nbase = BER_BVNULL;
1405                 Filter                  *filter = NULL;
1406                 struct berval           uri = BER_BVNULL;
1407                 dynlist_map_t           *dlm = NULL, *dlml = NULL;
1408                 const char              *text;
1409
1410                 oc = oc_find( c->argv[ 1 ] );
1411                 if ( oc == NULL ) {
1412                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1413                                 "unable to find ObjectClass \"%s\"",
1414                                 c->argv[ 1 ] );
1415                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1416                                 c->log, c->cr_msg, 0 );
1417                         return 1;
1418                 }
1419
1420                 if ( strncasecmp( c->argv[ attridx ], "ldap://", STRLENOF("ldap://") ) == 0 ) {
1421                         if ( ldap_url_parse( c->argv[ attridx ], &lud ) != LDAP_URL_SUCCESS ) {
1422                                 snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1423                                         "unable to parse URI \"%s\"",
1424                                         c->argv[ attridx ] );
1425                                 rc = 1;
1426                                 goto done_uri;
1427                         }
1428
1429                         if ( lud->lud_host != NULL ) {
1430                                 if ( lud->lud_host[0] == '\0' ) {
1431                                         ch_free( lud->lud_host );
1432                                         lud->lud_host = NULL;
1433
1434                                 } else {
1435                                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1436                                                 "host not allowed in URI \"%s\"",
1437                                                 c->argv[ attridx ] );
1438                                         rc = 1;
1439                                         goto done_uri;
1440                                 }
1441                         }
1442
1443                         if ( lud->lud_attrs != NULL ) {
1444                                 snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1445                                         "attrs not allowed in URI \"%s\"",
1446                                         c->argv[ attridx ] );
1447                                 rc = 1;
1448                                 goto done_uri;
1449                         }
1450
1451                         if ( lud->lud_exts != NULL ) {
1452                                 snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1453                                         "extensions not allowed in URI \"%s\"",
1454                                         c->argv[ attridx ] );
1455                                 rc = 1;
1456                                 goto done_uri;
1457                         }
1458
1459                         if ( lud->lud_dn != NULL && lud->lud_dn[ 0 ] != '\0' ) {
1460                                 struct berval dn;
1461                                 ber_str2bv( lud->lud_dn, 0, 0, &dn );
1462                                 rc = dnNormalize( 0, NULL, NULL, &dn, &nbase, NULL );
1463                                 if ( rc != LDAP_SUCCESS ) {
1464                                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1465                                                 "DN normalization failed in URI \"%s\"",
1466                                                 c->argv[ attridx ] );
1467                                         goto done_uri;
1468                                 }
1469                         }
1470
1471                         if ( lud->lud_filter != NULL && lud->lud_filter[ 0 ] != '\0' ) {
1472                                 filter = str2filter( lud->lud_filter );
1473                                 if ( filter == NULL ) {
1474                                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1475                                                 "filter parsing failed in URI \"%s\"",
1476                                                 c->argv[ attridx ] );
1477                                         rc = 1;
1478                                         goto done_uri;
1479                                 }
1480                         }
1481
1482                         ber_str2bv( c->argv[ attridx ], 0, 1, &uri );
1483
1484 done_uri:;
1485                         if ( rc ) {
1486                                 if ( lud ) {
1487                                         ldap_free_urldesc( lud );
1488                                 }
1489
1490                                 if ( !BER_BVISNULL( &nbase ) ) {
1491                                         ber_memfree( nbase.bv_val );
1492                                 }
1493
1494                                 if ( filter != NULL ) {
1495                                         filter_free( filter );
1496                                 }
1497
1498                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1499                                         c->log, c->cr_msg, 0 );
1500
1501                                 return rc;
1502                         }
1503
1504                         attridx++;
1505                 }
1506
1507                 rc = slap_str2ad( c->argv[ attridx ], &ad, &text );
1508                 if ( rc != LDAP_SUCCESS ) {
1509                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1510                                 "unable to find AttributeDescription \"%s\"",
1511                                 c->argv[ attridx ] );
1512                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1513                                 c->log, c->cr_msg, 0 );
1514                         return 1;
1515                 }
1516
1517                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1518                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1519                                 "AttributeDescription \"%s\" "
1520                                 "must be a subtype of \"labeledURI\"",
1521                                 c->argv[ attridx ] );
1522                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1523                                 c->log, c->cr_msg, 0 );
1524                         return 1;
1525                 }
1526
1527                 attridx++;
1528
1529                 for ( i = attridx; i < c->argc; i++ ) {
1530                         char *arg;
1531                         char *cp;
1532                         AttributeDescription *member_ad = NULL;
1533                         AttributeDescription *mapped_ad = NULL;
1534                         dynlist_map_t *dlmp;
1535
1536
1537                         /*
1538                          * If no mapped attribute is given, dn is used
1539                          * for backward compatibility.
1540                          */
1541                         arg = c->argv[i];
1542                         if ( ( cp = strchr( arg, ':' ) ) != NULL ) {
1543                                 struct berval bv;
1544                                 ber_str2bv( arg, cp - arg, 0, &bv );
1545                                 rc = slap_bv2ad( &bv, &mapped_ad, &text );
1546                                 if ( rc != LDAP_SUCCESS ) {
1547                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1548                                                 DYNLIST_USAGE
1549                                                 "unable to find mapped AttributeDescription #%d \"%s\"\n",
1550                                                 i - 3, c->argv[ i ] );
1551                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1552                                                 c->log, c->cr_msg, 0 );
1553                                         return 1;
1554                                 }
1555                                 arg = cp + 1;
1556                         }
1557
1558                         rc = slap_str2ad( arg, &member_ad, &text );
1559                         if ( rc != LDAP_SUCCESS ) {
1560                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1561                                         DYNLIST_USAGE
1562                                         "unable to find AttributeDescription #%d \"%s\"\n",
1563                                         i - 3, c->argv[ i ] );
1564                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1565                                         c->log, c->cr_msg, 0 );
1566                                 return 1;
1567                         }
1568
1569                         dlmp = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1570                         if ( dlm == NULL ) {
1571                                 dlm = dlmp;
1572                         }
1573                         dlmp->dlm_member_ad = member_ad;
1574                         dlmp->dlm_mapped_ad = mapped_ad;
1575                         dlmp->dlm_next = NULL;
1576
1577                         if ( dlml != NULL )
1578                                 dlml->dlm_next = dlmp;
1579                         dlml = dlmp;
1580                 }
1581
1582                 if ( c->valx > 0 ) {
1583                         int     i;
1584
1585                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1586                                 i < c->valx; i++ )
1587                         {
1588                                 if ( *dlip == NULL ) {
1589                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1590                                                 DYNLIST_USAGE
1591                                                 "invalid index {%d}\n",
1592                                                 c->valx );
1593                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1594                                                 c->log, c->cr_msg, 0 );
1595                                         return 1;
1596                                 }
1597                                 dlip = &(*dlip)->dli_next;
1598                         }
1599                         dli_next = *dlip;
1600
1601                 } else {
1602                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1603                                 *dlip; dlip = &(*dlip)->dli_next )
1604                                 /* goto last */;
1605                 }
1606
1607                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1608
1609                 (*dlip)->dli_oc = oc;
1610                 (*dlip)->dli_ad = ad;
1611                 (*dlip)->dli_dlm = dlm;
1612                 (*dlip)->dli_next = dli_next;
1613
1614                 (*dlip)->dli_lud = lud;
1615                 (*dlip)->dli_uri_nbase = nbase;
1616                 (*dlip)->dli_uri_filter = filter;
1617                 (*dlip)->dli_uri = uri;
1618
1619                 rc = dynlist_build_def_filter( *dlip );
1620
1621                 } break;
1622
1623         case DL_ATTRPAIR_COMPAT:
1624                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1625                         "warning: \"attrpair\" only supported for limited "
1626                         "backward compatibility with overlay \"dyngroup\"" );
1627                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
1628                 /* fallthru */
1629
1630         case DL_ATTRPAIR: {
1631                 dynlist_info_t          **dlip;
1632                 ObjectClass             *oc = NULL;
1633                 AttributeDescription    *ad = NULL,
1634                                         *member_ad = NULL;
1635                 const char              *text;
1636
1637                 oc = oc_find( "groupOfURLs" );
1638                 if ( oc == NULL ) {
1639                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1640                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1641                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1642                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1643                                 c->log, c->cr_msg, 0 );
1644                         return 1;
1645                 }
1646
1647                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1648                 if ( rc != LDAP_SUCCESS ) {
1649                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1650                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1651                                 "unable to find AttributeDescription \"%s\"",
1652                                 c->argv[ 1 ] );
1653                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1654                                 c->log, c->cr_msg, 0 );
1655                         return 1;
1656                 }
1657
1658                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1659                 if ( rc != LDAP_SUCCESS ) {
1660                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1661                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1662                                 "unable to find AttributeDescription \"%s\"\n",
1663                                 c->argv[ 2 ] );
1664                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1665                                 c->log, c->cr_msg, 0 );
1666                         return 1;
1667                 }
1668
1669                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1670                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1671                                 DYNLIST_USAGE
1672                                 "AttributeDescription \"%s\" "
1673                                 "must be a subtype of \"labeledURI\"",
1674                                 c->argv[ 2 ] );
1675                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1676                                 c->log, c->cr_msg, 0 );
1677                         return 1;
1678                 }
1679
1680                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1681                         *dlip; dlip = &(*dlip)->dli_next )
1682                 {
1683                         /*
1684                          * The same URL attribute / member attribute pair
1685                          * cannot be repeated, but we enforce this only
1686                          * when the member attribute is unique. Performing
1687                          * the check for multiple values would require
1688                          * sorting and comparing the lists, which is left
1689                          * as a future improvement
1690                          */
1691                         if ( (*dlip)->dli_ad == ad &&
1692                              (*dlip)->dli_dlm->dlm_next == NULL &&
1693                              member_ad == (*dlip)->dli_dlm->dlm_member_ad ) {
1694                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1695                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1696                                         "URL attributeDescription \"%s\" already mapped.\n",
1697                                         ad->ad_cname.bv_val );
1698                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1699                                         c->log, c->cr_msg, 0 );
1700 #if 0
1701                                 /* make it a warning... */
1702                                 return 1;
1703 #endif
1704                         }
1705                 }
1706
1707                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1708
1709                 (*dlip)->dli_oc = oc;
1710                 (*dlip)->dli_ad = ad;
1711                 (*dlip)->dli_dlm = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1712                 (*dlip)->dli_dlm->dlm_member_ad = member_ad;
1713                 (*dlip)->dli_dlm->dlm_mapped_ad = NULL;
1714
1715                 rc = dynlist_build_def_filter( *dlip );
1716
1717                 } break;
1718
1719         default:
1720                 rc = 1;
1721                 break;
1722         }
1723
1724         return rc;
1725 }
1726 #endif
1727
1728 static int
1729 dynlist_db_open(
1730         BackendDB       *be,
1731         ConfigReply     *cr )
1732 {
1733         slap_overinst           *on = (slap_overinst *) be->bd_info;
1734         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1735         ObjectClass             *oc = NULL;
1736         AttributeDescription    *ad = NULL;
1737         const char      *text;
1738         int rc;
1739
1740         if ( dli == NULL ) {
1741                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1742                 on->on_bi.bi_private = (void *)dli;
1743         }
1744
1745         for ( ; dli; dli = dli->dli_next ) {
1746                 if ( dli->dli_oc == NULL ) {
1747                         if ( oc == NULL ) {
1748                                 oc = oc_find( "groupOfURLs" );
1749                                 if ( oc == NULL ) {
1750                                         snprintf( cr->msg, sizeof( cr->msg),
1751                                                 "unable to fetch objectClass \"groupOfURLs\"" );
1752                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1753                                         return 1;
1754                                 }
1755                         }
1756
1757                         dli->dli_oc = oc;
1758                 }
1759
1760                 if ( dli->dli_ad == NULL ) {
1761                         if ( ad == NULL ) {
1762                                 rc = slap_str2ad( "memberURL", &ad, &text );
1763                                 if ( rc != LDAP_SUCCESS ) {
1764                                         snprintf( cr->msg, sizeof( cr->msg),
1765                                                 "unable to fetch attributeDescription \"memberURL\": %d (%s)",
1766                                                 rc, text );
1767                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1768                                         return 1;
1769                                 }
1770                         }
1771
1772                         dli->dli_ad = ad;
1773                 }
1774
1775                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1776                         rc = dynlist_build_def_filter( dli );
1777                         if ( rc != 0 ) {
1778                                 return rc;
1779                         }
1780                 }
1781         }
1782
1783         if ( ad_dgIdentity == NULL ) {
1784                 rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text );
1785                 if ( rc != LDAP_SUCCESS ) {
1786                         snprintf( cr->msg, sizeof( cr->msg),
1787                                 "unable to fetch attributeDescription \"dgIdentity\": %d (%s)",
1788                                 rc, text );
1789                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1790                         /* Just a warning */
1791                 }
1792         }
1793
1794         if ( ad_dgAuthz == NULL ) {
1795                 rc = slap_str2ad( "dgAuthz", &ad_dgAuthz, &text );
1796                 if ( rc != LDAP_SUCCESS ) {
1797                         snprintf( cr->msg, sizeof( cr->msg),
1798                                 "unable to fetch attributeDescription \"dgAuthz\": %d (%s)",
1799                                 rc, text );
1800                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1801                         /* Just a warning */
1802                 }
1803         }
1804
1805         return 0;
1806 }
1807
1808 static int
1809 dynlist_db_destroy(
1810         BackendDB       *be,
1811         ConfigReply     *cr )
1812 {
1813         slap_overinst   *on = (slap_overinst *) be->bd_info;
1814
1815         if ( on->on_bi.bi_private ) {
1816                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1817                                 *dli_next;
1818
1819                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1820                         dynlist_map_t *dlm;
1821                         dynlist_map_t *dlm_next;
1822
1823                         dli_next = dli->dli_next;
1824
1825                         if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1826                                 ch_free( dli->dli_uri.bv_val );
1827                         }
1828
1829                         if ( dli->dli_lud != NULL ) {
1830                                 ldap_free_urldesc( dli->dli_lud );
1831                         }
1832
1833                         if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) {
1834                                 ber_memfree( dli->dli_uri_nbase.bv_val );
1835                         }
1836
1837                         if ( dli->dli_uri_filter != NULL ) {
1838                                 filter_free( dli->dli_uri_filter );
1839                         }
1840
1841                         ch_free( dli->dli_default_filter.bv_val );
1842
1843                         dlm = dli->dli_dlm;
1844                         while ( dlm != NULL ) {
1845                                 dlm_next = dlm->dlm_next;
1846                                 ch_free( dlm );
1847                                 dlm = dlm_next;
1848                         }
1849                         ch_free( dli );
1850                 }
1851         }
1852
1853         return 0;
1854 }
1855
1856 static slap_overinst    dynlist = { { NULL } };
1857 #ifdef TAKEOVER_DYNGROUP
1858 static char             *obsolete_names[] = {
1859         "dyngroup",
1860         NULL
1861 };
1862 #endif
1863
1864 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1865 static
1866 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1867 int
1868 dynlist_initialize(void)
1869 {
1870 #ifndef OL_2_2_COMPAT
1871         int     rc = 0;
1872 #endif
1873
1874         dynlist.on_bi.bi_type = "dynlist";
1875
1876 #ifdef TAKEOVER_DYNGROUP
1877         /* makes dynlist incompatible with dyngroup */
1878         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1879 #endif
1880
1881 #ifdef OL_2_2_COMPAT
1882         dynlist.on_bi.bi_db_config = dynlist_db_config;
1883 #else
1884         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1885 #endif
1886         dynlist.on_bi.bi_db_open = dynlist_db_open;
1887         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1888
1889         dynlist.on_response = dynlist_response;
1890
1891 #ifndef OL_2_2_COMPAT
1892         dynlist.on_bi.bi_cf_ocs = dlocs;
1893
1894         rc = config_register_schema( dlcfg, dlocs );
1895         if ( rc ) {
1896                 return rc;
1897         }
1898 #endif
1899
1900         return overlay_register( &dynlist );
1901 }
1902
1903 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1904 int
1905 init_module( int argc, char *argv[] )
1906 {
1907         return dynlist_initialize();
1908 }
1909 #endif
1910
1911 #endif /* SLAPD_OVER_DYNLIST */