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                                 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, Entry *e, const char *url, 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         int             needBrackets = 0;
 180
 181         assert( oldf != NULL );
 182         assert( newf != NULL );
 183         assert( !BER_BVISNULL( oldf ) );
 184         assert( !BER_BVISEMPTY( oldf ) );
 185
 186         if ( oldf->bv_val[0] != '(' ) {
 187                 Debug( LDAP_DEBUG_ANY, "%s: dynlist, DN=\"%s\": missing brackets in URI=\"%s\" filter\n",
 188                         op->o_log_prefix, e->e_name.bv_val, url );
 189                 needBrackets = 2;
 190         }
 191
 192         newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" )
 193                 + dli->dli_oc->soc_cname.bv_len + oldf->bv_len + needBrackets;
 194         newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx );
 195         if ( newf->bv_val == NULL ) {
 196                 return -1;
 197         }
 198         ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" );
 199         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 200         ptr = lutil_strcopy( ptr, "))" );
 201         if ( needBrackets ) *ptr++ = '(';
 202         ptr = lutil_strcopy( ptr, oldf->bv_val );
 203         if ( needBrackets ) *ptr++ = ')';
 204         ptr = lutil_strcopy( ptr, ")" );
 205         newf->bv_len = ptr - newf->bv_val;
 206
 207         return 0;
 208 }
 209
 210 typedef struct dynlist_sc_t {
 211         dynlist_info_t    *dlc_dli;
 212         Entry           *dlc_e;
 213 } dynlist_sc_t;
 214
 215 static int
 216 dynlist_sc_update( Operation *op, SlapReply *rs )
 217 {
 218         Entry                   *e;
 219         Attribute               *a;
 220         int                     opattrs,
 221                                 userattrs;
 222         AccessControlState      acl_state = ACL_STATE_INIT;
 223
 224         dynlist_sc_t            *dlc;
 225         dynlist_map_t           *dlm;
 226
 227         if ( rs->sr_type != REP_SEARCH ) {
 228                 return 0;
 229         }
 230
 231         dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 232         e = dlc->dlc_e;
 233
 234         assert( e != NULL );
 235         assert( rs->sr_entry != NULL );
 236
 237         /* test access to entry */
 238         if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 239                                 NULL, ACL_READ, NULL ) )
 240         {
 241                 goto done;
 242         }
 243
 244         /* if there is only one member_ad, and it's not mapped,
 245          * consider it as old-style member listing */
 246         dlm = dlc->dlc_dli->dli_dlm;
 247         if ( dlm && dlm->dlm_mapped_ad == NULL && dlm->dlm_next == NULL ) {
 248                 /* if access allowed, try to add values, emulating permissive
 249                  * control to silently ignore duplicates */
 250                 if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 251                                         NULL, ACL_READ, NULL ) )
 252                 {
 253                         Modification    mod;
 254                         const char      *text = NULL;
 255                         char            textbuf[1024];
 256                         struct berval   vals[ 2 ], nvals[ 2 ];
 257
 258                         vals[ 0 ] = rs->sr_entry->e_name;
 259                         BER_BVZERO( &vals[ 1 ] );
 260                         nvals[ 0 ] = rs->sr_entry->e_nname;
 261                         BER_BVZERO( &nvals[ 1 ] );
 262
 263                         mod.sm_op = LDAP_MOD_ADD;
 264                         mod.sm_desc = dlm->dlm_member_ad;
 265                         mod.sm_type = dlm->dlm_member_ad->ad_cname;
 266                         mod.sm_values = vals;
 267                         mod.sm_nvalues = nvals;
 268                         mod.sm_numvals = 1;
 269
 270                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 271                                         &text, textbuf, sizeof( textbuf ) );
 272                 }
 273
 274                 goto done;
 275         }
 276
 277 #ifndef SLAP_OPATTRS
 278         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, slap_bv_operational_attrs );
 279         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, slap_bv_user_attrs );
 280 #else /* SLAP_OPATTRS */
 281         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 282         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 283 #endif /* SLAP_OPATTRS */
 284
 285         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 286                 BerVarray       vals, nvals = NULL;
 287                 int             i, j,
 288                                 is_oc = a->a_desc == slap_schema.si_ad_objectClass;
 289
 290                 /* if attribute is not requested, skip it */
 291                 if ( rs->sr_attrs == NULL ) {
 292                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 293                                 continue;
 294                         }
 295
 296                 } else {
 297                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 298                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 299                                 {
 300                                         continue;
 301                                 }
 302
 303                         } else {
 304                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 305                                 {
 306                                         continue;
 307                                 }
 308                         }
 309                 }
 310
 311                 /* test access to attribute */
 312                 if ( op->ors_attrsonly ) {
 313                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 314                                                 ACL_READ, &acl_state ) )
 315                         {
 316                                 continue;
 317                         }
 318                 }
 319
 320                 /* single-value check: keep first only */
 321                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 322                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 323                                 continue;
 324                         }
 325                 }
 326
 327                 /* test access to attribute */
 328                 i = a->a_numvals;
 329
 330                 vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 331                 if ( a->a_nvals != a->a_vals ) {
 332                         nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 333                 }
 334
 335                 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
 336                         if ( is_oc ) {
 337                                 ObjectClass     *soc = oc_bvfind( &a->a_vals[i] );
 338
 339                                 if ( soc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 340                                         continue;
 341                                 }
 342                         }
 343
 344                         if ( access_allowed( op, rs->sr_entry, a->a_desc,
 345                                                 &a->a_nvals[i], ACL_READ, &acl_state ) )
 346                         {
 347                                 vals[j] = a->a_vals[i];
 348                                 if ( nvals ) {
 349                                         nvals[j] = a->a_nvals[i];
 350                                 }
 351                                 j++;
 352                         }
 353                 }
 354
 355                 /* if access allowed, try to add values, emulating permissive
 356                  * control to silently ignore duplicates */
 357                 if ( j != 0 ) {
 358                         Modification    mod;
 359                         const char      *text = NULL;
 360                         char            textbuf[1024];
 361                         dynlist_map_t   *dlm;
 362                         AttributeDescription *ad;
 363
 364                         BER_BVZERO( &vals[j] );
 365                         if ( nvals ) {
 366                                 BER_BVZERO( &nvals[j] );
 367                         }
 368
 369                         ad = a->a_desc;
 370                         for ( dlm = dlc->dlc_dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 371                                 if ( dlm->dlm_member_ad == a->a_desc ) {
 372                                         if ( dlm->dlm_mapped_ad ) {
 373                                                 ad = dlm->dlm_mapped_ad;
 374                                         }
 375                                         break;
 376                                 }
 377                         }
 378
 379                         mod.sm_op = LDAP_MOD_ADD;
 380                         mod.sm_desc = ad;
 381                         mod.sm_type = ad->ad_cname;
 382                         mod.sm_values = vals;
 383                         mod.sm_nvalues = nvals;
 384                         mod.sm_numvals = j;
 385
 386                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 387                                         &text, textbuf, sizeof( textbuf ) );
 388                 }
 389
 390                 op->o_tmpfree( vals, op->o_tmpmemctx );
 391                 if ( nvals ) {
 392                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 393                 }
 394         }
 395
 396 done:;
 397         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 398                 entry_free( rs->sr_entry );
 399                 rs->sr_entry = NULL;
 400                 rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
 401         }
 402
 403         return 0;
 404 }
 405
 406 static int
 407 dynlist_prepare_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 408 {
 409         Attribute       *a, *id = NULL;
 410         slap_callback   cb;
 411         Operation       o = *op;
 412         SlapReply       r = { REP_SEARCH };
 413         struct berval   *url;
 414         Entry           *e;
 415         slap_mask_t     e_flags;
 416         int             opattrs,
 417                         userattrs;
 418         dynlist_sc_t    dlc = { 0 };
 419         dynlist_map_t   *dlm;
 420
 421         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 422         if ( a == NULL ) {
 423                 /* FIXME: error? */
 424                 return SLAP_CB_CONTINUE;
 425         }
 426
 427 #ifndef SLAP_OPATTRS
 428         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, slap_bv_operational_attrs );
 429         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, slap_bv_user_attrs );
 430 #else /* SLAP_OPATTRS */
 431         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 432         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 433 #endif /* SLAP_OPATTRS */
 434
 435         /* Don't generate member list if it wasn't requested */
 436         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 437                 AttributeDescription *ad = dlm->dlm_mapped_ad ? dlm->dlm_mapped_ad : dlm->dlm_member_ad;
 438                 if ( userattrs || ad_inlist( ad, rs->sr_attrs ) )
 439                         break;
 440         }
 441         if ( dli->dli_dlm && !dlm )
 442                 return SLAP_CB_CONTINUE;
 443
 444         if ( ad_dgIdentity && ( id = attrs_find( rs->sr_entry->e_attrs, ad_dgIdentity ))) {
 445                 Attribute *authz = NULL;
 446
 447                 /* if not rootdn and dgAuthz is present,
 448                  * check if user can be authorized as dgIdentity */
 449                 if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 450                         && ( authz = attrs_find( rs->sr_entry->e_attrs, ad_dgAuthz ) ) )
 451                 {
 452                         if ( slap_sasl_matches( op, authz->a_nvals,
 453                                 &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 454                         {
 455                                 return SLAP_CB_CONTINUE;
 456                         }
 457                 }
 458
 459                 o.o_dn = id->a_vals[0];
 460                 o.o_ndn = id->a_nvals[0];
 461                 o.o_groups = NULL;
 462         }
 463
 464         e_flags = rs->sr_flags;
 465         if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
 466                 e = entry_dup( rs->sr_entry );
 467                 e_flags |= ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 468                 e_flags &= ~REP_ENTRY_MUSTRELEASE;
 469         } else {
 470                 e = rs->sr_entry;
 471         }
 472
 473         dlc.dlc_e = e;
 474         dlc.dlc_dli = dli;
 475         cb.sc_private = &dlc;
 476         cb.sc_response = dynlist_sc_update;
 477         cb.sc_cleanup = NULL;
 478         cb.sc_next = NULL;
 479
 480         o.o_callback = &cb;
 481         o.ors_deref = LDAP_DEREF_NEVER;
 482         o.ors_limit = NULL;
 483         o.ors_tlimit = SLAP_NO_LIMIT;
 484         o.ors_slimit = SLAP_NO_LIMIT;
 485
 486         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 487                 LDAPURLDesc     *lud = NULL;
 488                 int             i, j;
 489                 struct berval   dn;
 490                 int             rc;
 491
 492                 BER_BVZERO( &o.o_req_dn );
 493                 BER_BVZERO( &o.o_req_ndn );
 494                 o.ors_filter = NULL;
 495                 o.ors_attrs = NULL;
 496                 BER_BVZERO( &o.ors_filterstr );
 497
 498                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 499                         /* FIXME: error? */
 500                         continue;
 501                 }
 502
 503                 if ( lud->lud_host != NULL ) {
 504                         /* FIXME: host not allowed; reject as illegal? */
 505                         Debug( LDAP_DEBUG_ANY, "dynlist_prepare_entry(\"%s\"): "
 506                                 "illegal URI \"%s\"\n",
 507                                 e->e_name.bv_val, url->bv_val, 0 );
 508                         goto cleanup;
 509                 }
 510
 511                 if ( lud->lud_dn == NULL ) {
 512                         /* note that an empty base is not honored in terms
 513                          * of defaultSearchBase, because select_backend()
 514                          * is not aware of the defaultSearchBase option;
 515                          * this can be useful in case of a database serving
 516                          * the empty suffix */
 517                         BER_BVSTR( &dn, "" );
 518
 519                 } else {
 520                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 521                 }
 522                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 523                 if ( rc != LDAP_SUCCESS ) {
 524                         /* FIXME: error? */
 525                         goto cleanup;
 526                 }
 527                 o.ors_scope = lud->lud_scope;
 528
 529                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 530                         if ( dlm->dlm_mapped_ad != NULL ) {
 531                                 break;
 532                         }
 533                 }
 534
 535                 if ( dli->dli_dlm && !dlm ) {
 536                         /* if ( lud->lud_attrs != NULL ),
 537                          * the URL should be ignored */
 538                         o.ors_attrs = slap_anlist_no_attrs;
 539
 540                 } else if ( lud->lud_attrs == NULL ) {
 541                         o.ors_attrs = rs->sr_attrs;
 542
 543                 } else {
 544                         for ( i = 0; lud->lud_attrs[i]; i++)
 545                                 /* just count */ ;
 546
 547                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 548                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 549                                 const char      *text = NULL;
 550
 551                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 552                                 o.ors_attrs[j].an_desc = NULL;
 553                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 554                                 /* FIXME: ignore errors... */
 555
 556                                 if ( rs->sr_attrs == NULL ) {
 557                                         if ( o.ors_attrs[j].an_desc != NULL &&
 558                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 559                                         {
 560                                                 continue;
 561                                         }
 562
 563                                 } else {
 564                                         if ( o.ors_attrs[j].an_desc != NULL &&
 565                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 566                                         {
 567                                                 if ( !opattrs ) {
 568                                                         continue;
 569                                                 }
 570
 571                                                 if ( !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) ) {
 572                                                         /* lookup if mapped -- linear search,
 573                                                          * not very efficient unless list
 574                                                          * is very short */
 575                                                         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 576                                                                 if ( dlm->dlm_member_ad == o.ors_attrs[j].an_desc ) {
 577                                                                         break;
 578                                                                 }
 579                                                         }
 580
 581                                                         if ( dlm == NULL ) {
 582                                                                 continue;
 583                                                         }
 584                                                 }
 585
 586                                         } else {
 587                                                 if ( !userattrs &&
 588                                                                 o.ors_attrs[j].an_desc != NULL &&
 589                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 590                                                 {
 591                                                         /* lookup if mapped -- linear search,
 592                                                          * not very efficient unless list
 593                                                          * is very short */
 594                                                         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 595                                                                 if ( dlm->dlm_member_ad == o.ors_attrs[j].an_desc ) {
 596                                                                         break;
 597                                                                 }
 598                                                         }
 599
 600                                                         if ( dlm == NULL ) {
 601                                                                 continue;
 602                                                         }
 603                                                 }
 604                                         }
 605                                 }
 606
 607                                 j++;
 608                         }
 609
 610                         if ( j == 0 ) {
 611                                 goto cleanup;
 612                         }
 613
 614                         BER_BVZERO( &o.ors_attrs[j].an_name );
 615                 }
 616
 617                 if ( lud->lud_filter == NULL ) {
 618                         ber_dupbv_x( &o.ors_filterstr,
 619                                         &dli->dli_default_filter, op->o_tmpmemctx );
 620
 621                 } else {
 622                         struct berval   flt;
 623                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 624                         if ( dynlist_make_filter( op, rs->sr_entry, url->bv_val, &flt, &o.ors_filterstr ) ) {
 625                                 /* error */
 626                                 goto cleanup;
 627                         }
 628                 }
 629                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 630                 if ( o.ors_filter == NULL ) {
 631                         goto cleanup;
 632                 }
 633
 634                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 635                 if ( o.o_bd && o.o_bd->be_search ) {
 636 #ifdef SLAP_OPATTRS
 637                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 638 #endif /* SLAP_OPATTRS */
 639                         (void)o.o_bd->be_search( &o, &r );
 640                 }
 641
 642 cleanup:;
 643                 if ( id ) {
 644                         slap_op_groups_free( &o );
 645                 }
 646                 if ( o.ors_filter ) {
 647                         filter_free_x( &o, o.ors_filter, 1 );
 648                 }
 649                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 650                                 && o.ors_attrs != slap_anlist_no_attrs )
 651                 {
 652                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 653                 }
 654                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 655                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 656                 }
 657                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 658                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 659                 }
 660                 assert( BER_BVISNULL( &o.ors_filterstr )
 661                         || o.ors_filterstr.bv_val != lud->lud_filter );
 662                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 663                 ldap_free_urldesc( lud );
 664         }
 665
 666         rs->sr_entry = e;
 667         rs->sr_flags = e_flags;
 668
 669         return SLAP_CB_CONTINUE;
 670 }
 671
 672 static int
 673 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 674 {
 675         /* save the entry in the private field of the callback,
 676          * so it doesn't get freed (it's temporary!) */
 677         if ( rs->sr_entry != NULL ) {
 678                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 679                 dlc->dlc_e = rs->sr_entry;
 680                 rs->sr_entry = NULL;
 681         }
 682
 683         return 0;
 684 }
 685
 686 static int
 687 dynlist_compare( Operation *op, SlapReply *rs )
 688 {
 689         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 690         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 691         Operation o = *op;
 692         Entry *e = NULL;
 693         dynlist_map_t *dlm;
 694
 695         for ( ; dli != NULL; dli = dli->dli_next ) {
 696                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next )
 697                         if ( op->oq_compare.rs_ava->aa_desc == dlm->dlm_member_ad )
 698                                 break;
 699
 700                 if ( dli->dli_dlm && dlm ) {
 701                         /* This compare is for one of the attributes we're
 702                          * interested in. We'll use slapd's existing dyngroup
 703                          * evaluator to get the answer we want.
 704                          */
 705                         BerVarray id = NULL, authz = NULL;
 706
 707                         o.o_do_not_cache = 1;
 708
 709                         if ( ad_dgIdentity && backend_attribute( &o, NULL, &o.o_req_ndn,
 710                                 ad_dgIdentity, &id, ACL_READ ) == LDAP_SUCCESS )
 711                         {
 712                                 /* if not rootdn and dgAuthz is present,
 713                                  * check if user can be authorized as dgIdentity */
 714                                 if ( ad_dgAuthz && !BER_BVISEMPTY( id ) && !be_isroot( op )
 715                                         && backend_attribute( &o, NULL, &o.o_req_ndn,
 716                                                 ad_dgAuthz, &authz, ACL_READ ) == LDAP_SUCCESS )
 717                                 {
 718
 719                                         rs->sr_err = slap_sasl_matches( op, authz,
 720                                                 &o.o_ndn, &o.o_ndn );
 721                                         ber_bvarray_free_x( authz, op->o_tmpmemctx );
 722                                         if ( rs->sr_err != LDAP_SUCCESS ) {
 723                                                 goto done;
 724                                         }
 725                                 }
 726
 727                                 o.o_dn = *id;
 728                                 o.o_ndn = *id;
 729                                 o.o_groups = NULL; /* authz changed, invalidate cached groups */
 730                         }
 731
 732                         rs->sr_err = backend_group( &o, NULL, &o.o_req_ndn,
 733                                 &o.oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 734                         switch ( rs->sr_err ) {
 735                         case LDAP_SUCCESS:
 736                                 rs->sr_err = LDAP_COMPARE_TRUE;
 737                                 break;
 738
 739                         case LDAP_NO_SUCH_OBJECT:
 740                                 /* NOTE: backend_group() returns noSuchObject
 741                                  * if op_ndn does not exist; however, since
 742                                  * dynamic list expansion means that the
 743                                  * member attribute is virtually present, the
 744                                  * non-existence of the asserted value implies
 745                                  * the assertion is FALSE rather than
 746                                  * UNDEFINED */
 747                                 rs->sr_err = LDAP_COMPARE_FALSE;
 748                                 break;
 749                         }
 750
 751 done:;
 752                         if ( id ) ber_bvarray_free_x( id, o.o_tmpmemctx );
 753
 754                         return SLAP_CB_CONTINUE;
 755                 }
 756         }
 757
 758         if ( overlay_entry_get_ov( &o, &o.o_req_ndn, NULL, NULL, 0, &e, on ) !=
 759                 LDAP_SUCCESS || e == NULL )
 760         {
 761                 return SLAP_CB_CONTINUE;
 762         }
 763
 764         if ( ad_dgIdentity ) {
 765                 Attribute *id = attrs_find( e->e_attrs, ad_dgIdentity );
 766                 if ( id ) {
 767                         Attribute *authz;
 768
 769                         /* if not rootdn and dgAuthz is present,
 770                          * check if user can be authorized as dgIdentity */
 771                         if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 772                                 && ( authz = attrs_find( e->e_attrs, ad_dgAuthz ) ) )
 773                         {
 774                                 if ( slap_sasl_matches( op, authz->a_nvals,
 775                                         &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 776                                 {
 777                                         goto release;
 778                                 }
 779                         }
 780
 781                         o.o_dn = id->a_vals[0];
 782                         o.o_ndn = id->a_nvals[0];
 783                         o.o_groups = NULL;
 784                 }
 785         }
 786
 787         dli = (dynlist_info_t *)on->on_bi.bi_private;
 788         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 789                 Attribute       *a;
 790                 slap_callback   cb;
 791                 SlapReply       r = { REP_SEARCH };
 792                 AttributeName   an[2];
 793                 int             rc;
 794                 dynlist_sc_t    dlc = { 0 };
 795
 796                 if ( !is_entry_objectclass_or_sub( e, dli->dli_oc ))
 797                         continue;
 798
 799                 /* if the entry has the right objectClass, generate
 800                  * the dynamic list and compare */
 801                 dlc.dlc_dli = dli;
 802                 cb.sc_private = &dlc;
 803                 cb.sc_response = dynlist_sc_save_entry;
 804                 cb.sc_cleanup = NULL;
 805                 cb.sc_next = NULL;
 806                 o.o_callback = &cb;
 807
 808                 o.o_tag = LDAP_REQ_SEARCH;
 809                 o.ors_limit = NULL;
 810                 o.ors_tlimit = SLAP_NO_LIMIT;
 811                 o.ors_slimit = SLAP_NO_LIMIT;
 812
 813                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 814                 if ( !o.o_bd || !o.o_bd->be_search ) {
 815                         goto release;
 816                 }
 817
 818                 o.ors_filterstr = *slap_filterstr_objectClass_pres;
 819                 o.ors_filter = (Filter *) slap_filter_objectClass_pres;
 820
 821                 o.ors_scope = LDAP_SCOPE_BASE;
 822                 o.ors_deref = LDAP_DEREF_NEVER;
 823                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 824                 an[0].an_desc = op->orc_ava->aa_desc;
 825                 BER_BVZERO( &an[1].an_name );
 826                 o.ors_attrs = an;
 827                 o.ors_attrsonly = 0;
 828
 829                 o.o_acl_priv = ACL_COMPARE;
 830
 831                 rc = o.o_bd->be_search( &o, &r );
 832
 833                 if ( o.o_dn.bv_val != op->o_dn.bv_val ) {
 834                         slap_op_groups_free( &o );
 835                 }
 836
 837                 if ( rc != 0 ) {
 838                         goto release;
 839                 }
 840
 841                 if ( dlc.dlc_e != NULL ) {
 842                         r.sr_entry = dlc.dlc_e;
 843                 }
 844
 845                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 846                         /* error? */
 847                         goto release;
 848                 }
 849
 850                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 851                         a != NULL;
 852                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 853                 {
 854                         /* if we're here, we got a match... */
 855                         rs->sr_err = LDAP_COMPARE_FALSE;
 856
 857                         if ( attr_valfind( a,
 858                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 859                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 860                                 &op->orc_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
 861                         {
 862                                 rs->sr_err = LDAP_COMPARE_TRUE;
 863                                 break;
 864                         }
 865                 }
 866
 867                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 868                         entry_free( r.sr_entry );
 869                         r.sr_entry = NULL;
 870                         r.sr_flags ^= REP_ENTRY_MUSTBEFREED;
 871                 }
 872         }
 873
 874 release:;
 875         if ( e != NULL ) {
 876                 overlay_entry_release_ov( &o, e, 0, on );
 877         }
 878
 879         return SLAP_CB_CONTINUE;
 880 }
 881
 882 static int
 883 dynlist_response( Operation *op, SlapReply *rs )
 884 {
 885         dynlist_info_t  *dli;
 886
 887         switch ( op->o_tag ) {
 888         case LDAP_REQ_SEARCH:
 889                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 890                 {
 891                         int     rc = LDAP_OTHER;
 892
 893                         for ( dli = dynlist_is_dynlist_next( op, rs, NULL );
 894                                 dli;
 895                                 dli = dynlist_is_dynlist_next( op, rs, dli ) )
 896                         {
 897                                 rc = dynlist_prepare_entry( op, rs, dli );
 898                         }
 899
 900                         if ( rc != LDAP_OTHER ) {
 901                                 return rc;
 902                         }
 903                 }
 904                 break;
 905
 906         case LDAP_REQ_COMPARE:
 907                 switch ( rs->sr_err ) {
 908                 /* NOTE: we waste a few cycles running the dynamic list
 909                  * also when the result is FALSE, which occurs if the
 910                  * dynamic entry itself contains the AVA attribute  */
 911                 /* FIXME: this approach is less than optimal; a dedicated
 912                  * compare op should be implemented, that fetches the
 913                  * entry, checks if it has the appropriate objectClass
 914                  * and, in case, runs a compare thru all the URIs,
 915                  * stopping at the first positive occurrence; see ITS#3756 */
 916                 case LDAP_COMPARE_FALSE:
 917                 case LDAP_NO_SUCH_ATTRIBUTE:
 918                         return dynlist_compare( op, rs );
 919                 }
 920                 break;
 921
 922         default:
 923                 break;
 924         }
 925
 926         return SLAP_CB_CONTINUE;
 927 }
 928
 929 static int
 930 dynlist_build_def_filter( dynlist_info_t *dli )
 931 {
 932         char    *ptr;
 933
 934         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 935                 + dli->dli_oc->soc_cname.bv_len;
 936         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 937         if ( dli->dli_default_filter.bv_val == NULL ) {
 938                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 939                         0, 0, 0 );
 940                 return -1;
 941         }
 942
 943         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 944         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 945         ptr = lutil_strcopy( ptr, "))" );
 946
 947         assert( ptr == &dli->dli_default_filter.bv_val[dli->dli_default_filter.bv_len] );
 948
 949         return 0;
 950 }
 951
 952 #ifdef OL_2_2_COMPAT
 953 static int
 954 dynlist_db_config(
 955         BackendDB       *be,
 956         const char      *fname,
 957         int             lineno,
 958         int             argc,
 959         char            **argv )
 960 {
 961         slap_overinst   *on = (slap_overinst *)be->bd_info;
 962
 963         int             rc = 0;
 964
 965         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 966                 dynlist_info_t          **dlip;
 967                 ObjectClass             *oc;
 968                 AttributeDescription    *ad = NULL,
 969                                         *member_ad = NULL;
 970                 dynlist_map_t           *dlm = NULL, *dlml = NULL;
 971                 const char              *text;
 972
 973                 if ( argc < 3 ) {
 974                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 975                                 "invalid arg number #%d.\n",
 976                                 fname, lineno, argc );
 977                         return 1;
 978                 }
 979
 980                 oc = oc_find( argv[1] );
 981                 if ( oc == NULL ) {
 982                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 983                                 "unable to find ObjectClass \"%s\"\n",
 984                                 fname, lineno, argv[ 1 ] );
 985                         return 1;
 986                 }
 987
 988                 rc = slap_str2ad( argv[2], &ad, &text );
 989                 if ( rc != LDAP_SUCCESS ) {
 990                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 991                                 "unable to find AttributeDescription \"%s\"\n",
 992                                 fname, lineno, argv[2] );
 993                         return 1;
 994                 }
 995
 996                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 997                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 998                                 "AttributeDescription \"%s\" "
 999                                 "must be a subtype of \"labeledURI\"\n",
1000                                 fname, lineno, argv[2] );
1001                         return 1;
1002                 }
1003
1004                 for ( i = 3; i < argc; i++ ) {
1005                         char *arg;
1006                         char *cp;
1007                         AttributeDescription *member_ad = NULL;
1008                         AttributeDescription *mapped_ad = NULL;
1009                         dynlist_map_t *dlmp;
1010
1011
1012                         /*
1013                          * If no mapped attribute is given, dn is used
1014                          * for backward compatibility.
1015                          */
1016                         arg = argv[i];
1017                         if ( cp = strchr( arg, (int)':' ) != NULL ) {
1018                                 struct berval bv;
1019                                 ber_str2bv( arg, cp - arg, 0, &bv );
1020                                 rc = slap_bv2ad( &bv, &mapped_ad, &text );
1021                                 if ( rc != LDAP_SUCCESS ) {
1022                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1023                                                 DYNLIST_USAGE
1024                                                 "unable to find mapped AttributeDescription \"%s\"\n",
1025                                                 fname, lineno, arg );
1026                                         return 1;
1027                                 }
1028
1029                                 arg = cp + 1;
1030                         }
1031
1032                         rc = slap_str2ad( arg, &member_ad, &text );
1033                         if ( rc != LDAP_SUCCESS ) {
1034                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1035                                         DYNLIST_USAGE
1036                                         "unable to find AttributeDescription \"%s\"\n",
1037                                         fname, lineno, arg );
1038                                 return 1;
1039                         }
1040
1041                         dlmp = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1042                         if ( dlm == NULL ) {
1043                                 dlm = dlmp;
1044                         }
1045                         dlmp->dlm_member_ad = member_ad;
1046                         dlmp->dlm_mapped_ad = mapped_ad;
1047                         dlmp->dlm_next = NULL;
1048
1049                         if ( dlml != NULL )
1050                                 dlml->dlm_next = dlmp;
1051                         dlml = dlmp;
1052                 }
1053
1054                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1055                         *dlip; dlip = &(*dlip)->dli_next )
1056                 {
1057                         /*
1058                          * The same URL attribute / member attribute pair
1059                          * cannot be repeated, but we enforce this only
1060                          * when the member attribute is unique. Performing
1061                          * the check for multiple values would require
1062                          * sorting and comparing the lists, which is left
1063                          * as a future improvement
1064                          */
1065                         if ( (*dlip)->dli_ad == ad &&
1066                              (*dlip)->dli_dlm->dlm_next == NULL &&
1067                              dlm->dlm_next == NULL &&
1068                              dlm->dlm_member_ad == (*dlip)->dli_dlm->dlm_member_ad &&
1069                              dlm->dlm_mapped_ad == (*dlip)->dli_dlm->dlm_mapped_ad ) {
1070                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1071                                         DYNLIST_USAGE
1072                                         "URL attributeDescription \"%s\" already mapped.\n",
1073                                         fname, lineno, ad->ad_cname.bv_val );
1074 #if 0
1075                                 /* make it a warning... */
1076                                 return 1;
1077 #endif
1078                         }
1079                 }
1080
1081                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1082                 (*dlip)->dli_oc = oc;
1083                 (*dlip)->dli_ad = ad;
1084                 (*dlip)->dli_dlm = dlm;
1085
1086                 if ( dynlist_build_def_filter( *dlip ) ) {
1087                         dynlist_map_t *dlm = (*dlip)->ldi_dlm;
1088                         dynlist_map_t *dlm_next;
1089
1090                         while ( dlm != NULL ) {
1091                                 dlm_next = dlm->dlm_next;
1092                                 ch_free( dlm );
1093                                 dlm = dlm_next;
1094                         }
1095
1096                         ch_free( *dlip );
1097                         *dlip = NULL;
1098                         return 1;
1099                 }
1100
1101         /* allow dyngroup syntax */
1102         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
1103                 dynlist_info_t          **dlip;
1104                 ObjectClass             *oc;
1105                 AttributeDescription    *ad = NULL,
1106                                         *member_ad = NULL;
1107                 const char              *text;
1108
1109                 if ( argc != 3 ) {
1110                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1111                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1112                                 "invalid arg number #%d.\n",
1113                                 fname, lineno, argc );
1114                         return 1;
1115                 }
1116
1117                 oc = oc_find( "groupOfURLs" );
1118                 if ( oc == NULL ) {
1119                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1120                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1121                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
1122                                 fname, lineno, 0 );
1123                         return 1;
1124                 }
1125
1126                 rc = slap_str2ad( argv[1], &member_ad, &text );
1127                 if ( rc != LDAP_SUCCESS ) {
1128                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1129                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1130                                 "unable to find AttributeDescription \"%s\"\n",
1131                                 fname, lineno, argv[1] );
1132                         return 1;
1133                 }
1134
1135                 rc = slap_str2ad( argv[2], &ad, &text );
1136                 if ( rc != LDAP_SUCCESS ) {
1137                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1138                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1139                                 "unable to find AttributeDescription \"%s\"\n",
1140                                 fname, lineno, argv[2] );
1141                         return 1;
1142                 }
1143
1144                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1145                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1146                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1147                                 "AttributeDescription \"%s\" "
1148                                 "must be a subtype of \"labeledURI\"\n",
1149                                 fname, lineno, argv[2] );
1150                         return 1;
1151                 }
1152
1153                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1154                         *dlip; dlip = &(*dlip)->dli_next )
1155                 {
1156                         /*
1157                          * The same URL attribute / member attribute pair
1158                          * cannot be repeated, but we enforce this only
1159                          * when the member attribute is unique. Performing
1160                          * the check for multiple values would require
1161                          * sorting and comparing the lists, which is left
1162                          * as a future improvement
1163                          */
1164                         if ( (*dlip)->dli_ad == ad &&
1165                              (*dlip)->dli_dlm->dlm_next == NULL &&
1166                              member_ad == (*dlip)->dli_dlm->dlm_member_ad ) {
1167                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1168                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1169                                         "URL attributeDescription \"%s\" already mapped.\n",
1170                                         fname, lineno, ad->ad_cname.bv_val );
1171 #if 0
1172                                 /* make it a warning... */
1173                                 return 1;
1174 #endif
1175                         }
1176                 }
1177
1178                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1179                 (*dlip)->dli_oc = oc;
1180                 (*dlip)->dli_ad = ad;
1181                 (*dlip)->dli_dlm = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1182                 (*dlip)->dli_dlm->dlm_member_ad = member_ad;
1183                 (*dlip)->dli_dlm->dlm_mapped_ad = NULL;
1184
1185                 if ( dynlist_build_def_filter( *dlip ) ) {
1186                         ch_free( (*dlip)->dli_dlm );
1187                         ch_free( *dlip );
1188                         *dlip = NULL;
1189                         return 1;
1190                 }
1191
1192         } else {
1193                 rc = SLAP_CONF_UNKNOWN;
1194         }
1195
1196         return rc;
1197 }
1198
1199 #else
1200 enum {
1201         DL_ATTRSET = 1,
1202         DL_ATTRPAIR,
1203         DL_ATTRPAIR_COMPAT,
1204         DL_LAST
1205 };
1206
1207 static ConfigDriver     dl_cfgen;
1208
1209 /* XXXmanu 255 is the maximum arguments we allow. Can we go beyond? */
1210 static ConfigTable dlcfg[] = {
1211         { "dynlist-attrset", "group-oc> [uri] <URL-ad> <[mapped:]member-ad> [...]",
1212                 3, 0, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
1213                 "( OLcfgOvAt:8.1 NAME 'olcDlAttrSet' "
1214                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
1215                         "EQUALITY caseIgnoreMatch "
1216                         "SYNTAX OMsDirectoryString "
1217                         "X-ORDERED 'VALUES' )",
1218                         NULL, NULL },
1219         { "dynlist-attrpair", "member-ad> <URL-ad",
1220                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
1221                         NULL, NULL, NULL },
1222 #ifdef TAKEOVER_DYNGROUP
1223         { "attrpair", "member-ad> <URL-ad",
1224                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
1225                         NULL, NULL, NULL },
1226 #endif
1227         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1228 };
1229
1230 static ConfigOCs dlocs[] = {
1231         { "( OLcfgOvOc:8.1 "
1232                 "NAME 'olcDynamicList' "
1233                 "DESC 'Dynamic list configuration' "
1234                 "SUP olcOverlayConfig "
1235                 "MAY olcDLattrSet )",
1236                 Cft_Overlay, dlcfg, NULL, NULL },
1237         { NULL, 0, NULL }
1238 };
1239
1240 static int
1241 dl_cfgen( ConfigArgs *c )
1242 {
1243         slap_overinst   *on = (slap_overinst *)c->bi;
1244         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
1245
1246         int             rc = 0, i;
1247
1248         if ( c->op == SLAP_CONFIG_EMIT ) {
1249                 switch( c->type ) {
1250                 case DL_ATTRSET:
1251                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
1252                                 struct berval   bv;
1253                                 char            *ptr = c->cr_msg;
1254                                 dynlist_map_t   *dlm;
1255
1256                                 assert( dli->dli_oc != NULL );
1257                                 assert( dli->dli_ad != NULL );
1258
1259                                 /* FIXME: check buffer overflow! */
1260                                 ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ),
1261                                         SLAP_X_ORDERED_FMT "%s", i,
1262                                         dli->dli_oc->soc_cname.bv_val );
1263
1264                                 if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1265                                         *ptr++ = ' ';
1266                                         *ptr++ = '"';
1267                                         ptr = lutil_strncopy( ptr, dli->dli_uri.bv_val,
1268                                                 dli->dli_uri.bv_len );
1269                                         *ptr++ = '"';
1270                                 }
1271
1272                                 *ptr++ = ' ';
1273                                 ptr = lutil_strncopy( ptr, dli->dli_ad->ad_cname.bv_val,
1274                                         dli->dli_ad->ad_cname.bv_len );
1275
1276                                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
1277                                         ptr[ 0 ] = ' ';
1278                                         ptr++;
1279                                         if ( dlm->dlm_mapped_ad ) {
1280                                                 ptr = lutil_strcopy( ptr, dlm->dlm_mapped_ad->ad_cname.bv_val );
1281                                                 ptr[ 0 ] = ':';
1282                                                 ptr++;
1283                                         }
1284
1285                                         ptr = lutil_strcopy( ptr, dlm->dlm_member_ad->ad_cname.bv_val );
1286                                 }
1287
1288                                 bv.bv_val = c->cr_msg;
1289                                 bv.bv_len = ptr - bv.bv_val;
1290                                 value_add_one( &c->rvalue_vals, &bv );
1291                         }
1292                         break;
1293
1294                 case DL_ATTRPAIR_COMPAT:
1295                 case DL_ATTRPAIR:
1296                         rc = 1;
1297                         break;
1298
1299                 default:
1300                         rc = 1;
1301                         break;
1302                 }
1303
1304                 return rc;
1305
1306         } else if ( c->op == LDAP_MOD_DELETE ) {
1307                 switch( c->type ) {
1308                 case DL_ATTRSET:
1309                         if ( c->valx < 0 ) {
1310                                 dynlist_info_t  *dli_next;
1311
1312                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1313                                         dynlist_map_t *dlm = dli->dli_dlm;
1314                                         dynlist_map_t *dlm_next;
1315
1316                                         dli_next = dli->dli_next;
1317
1318                                         if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1319                                                 ch_free( dli->dli_uri.bv_val );
1320                                         }
1321
1322                                         if ( dli->dli_lud != NULL ) {
1323                                                 ldap_free_urldesc( dli->dli_lud );
1324                                         }
1325
1326                                         if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) {
1327                                                 ber_memfree( dli->dli_uri_nbase.bv_val );
1328                                         }
1329
1330                                         if ( dli->dli_uri_filter != NULL ) {
1331                                                 filter_free( dli->dli_uri_filter );
1332                                         }
1333
1334                                         ch_free( dli->dli_default_filter.bv_val );
1335
1336                                         while ( dlm != NULL ) {
1337                                                 dlm_next = dlm->dlm_next;
1338                                                 ch_free( dlm );
1339                                                 dlm = dlm_next;
1340                                         }
1341                                         ch_free( dli );
1342                                 }
1343
1344                                 on->on_bi.bi_private = NULL;
1345
1346                         } else {
1347                                 dynlist_info_t  **dlip;
1348                                 dynlist_map_t *dlm;
1349                                 dynlist_map_t *dlm_next;
1350
1351                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1352                                         i < c->valx; i++ )
1353                                 {
1354                                         if ( *dlip == NULL ) {
1355                                                 return 1;
1356                                         }
1357                                         dlip = &(*dlip)->dli_next;
1358                                 }
1359
1360                                 dli = *dlip;
1361                                 *dlip = dli->dli_next;
1362
1363                                 if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1364                                         ch_free( dli->dli_uri.bv_val );
1365                                 }
1366
1367                                 if ( dli->dli_lud != NULL ) {
1368                                         ldap_free_urldesc( dli->dli_lud );
1369                                 }
1370
1371                                 if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) {
1372                                         ber_memfree( dli->dli_uri_nbase.bv_val );
1373                                 }
1374
1375                                 if ( dli->dli_uri_filter != NULL ) {
1376                                         filter_free( dli->dli_uri_filter );
1377                                 }
1378
1379                                 ch_free( dli->dli_default_filter.bv_val );
1380
1381                                 dlm = dli->dli_dlm;
1382                                 while ( dlm != NULL ) {
1383                                         dlm_next = dlm->dlm_next;
1384                                         ch_free( dlm );
1385                                         dlm = dlm_next;
1386                                 }
1387                                 ch_free( dli );
1388
1389                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1390                         }
1391                         break;
1392
1393                 case DL_ATTRPAIR_COMPAT:
1394                 case DL_ATTRPAIR:
1395                         rc = 1;
1396                         break;
1397
1398                 default:
1399                         rc = 1;
1400                         break;
1401                 }
1402
1403                 return rc;
1404         }
1405
1406         switch( c->type ) {
1407         case DL_ATTRSET: {
1408                 dynlist_info_t          **dlip,
1409                                         *dli_next = NULL;
1410                 ObjectClass             *oc = NULL;
1411                 AttributeDescription    *ad = NULL;
1412                 int                     attridx = 2;
1413                 LDAPURLDesc             *lud = NULL;
1414                 struct berval           nbase = BER_BVNULL;
1415                 Filter                  *filter = NULL;
1416                 struct berval           uri = BER_BVNULL;
1417                 dynlist_map_t           *dlm = NULL, *dlml = NULL;
1418                 const char              *text;
1419
1420                 oc = oc_find( c->argv[ 1 ] );
1421                 if ( oc == NULL ) {
1422                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1423                                 "unable to find ObjectClass \"%s\"",
1424                                 c->argv[ 1 ] );
1425                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1426                                 c->log, c->cr_msg, 0 );
1427                         return 1;
1428                 }
1429
1430                 if ( strncasecmp( c->argv[ attridx ], "ldap://", STRLENOF("ldap://") ) == 0 ) {
1431                         if ( ldap_url_parse( c->argv[ attridx ], &lud ) != LDAP_URL_SUCCESS ) {
1432                                 snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1433                                         "unable to parse URI \"%s\"",
1434                                         c->argv[ attridx ] );
1435                                 rc = 1;
1436                                 goto done_uri;
1437                         }
1438
1439                         if ( lud->lud_host != NULL ) {
1440                                 if ( lud->lud_host[0] == '\0' ) {
1441                                         ch_free( lud->lud_host );
1442                                         lud->lud_host = NULL;
1443
1444                                 } else {
1445                                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1446                                                 "host not allowed in URI \"%s\"",
1447                                                 c->argv[ attridx ] );
1448                                         rc = 1;
1449                                         goto done_uri;
1450                                 }
1451                         }
1452
1453                         if ( lud->lud_attrs != NULL ) {
1454                                 snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1455                                         "attrs not allowed in URI \"%s\"",
1456                                         c->argv[ attridx ] );
1457                                 rc = 1;
1458                                 goto done_uri;
1459                         }
1460
1461                         if ( lud->lud_exts != NULL ) {
1462                                 snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1463                                         "extensions not allowed in URI \"%s\"",
1464                                         c->argv[ attridx ] );
1465                                 rc = 1;
1466                                 goto done_uri;
1467                         }
1468
1469                         if ( lud->lud_dn != NULL && lud->lud_dn[ 0 ] != '\0' ) {
1470                                 struct berval dn;
1471                                 ber_str2bv( lud->lud_dn, 0, 0, &dn );
1472                                 rc = dnNormalize( 0, NULL, NULL, &dn, &nbase, NULL );
1473                                 if ( rc != LDAP_SUCCESS ) {
1474                                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1475                                                 "DN normalization failed in URI \"%s\"",
1476                                                 c->argv[ attridx ] );
1477                                         goto done_uri;
1478                                 }
1479                         }
1480
1481                         if ( lud->lud_filter != NULL && lud->lud_filter[ 0 ] != '\0' ) {
1482                                 filter = str2filter( lud->lud_filter );
1483                                 if ( filter == NULL ) {
1484                                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1485                                                 "filter parsing failed in URI \"%s\"",
1486                                                 c->argv[ attridx ] );
1487                                         rc = 1;
1488                                         goto done_uri;
1489                                 }
1490                         }
1491
1492                         ber_str2bv( c->argv[ attridx ], 0, 1, &uri );
1493
1494 done_uri:;
1495                         if ( rc ) {
1496                                 if ( lud ) {
1497                                         ldap_free_urldesc( lud );
1498                                 }
1499
1500                                 if ( !BER_BVISNULL( &nbase ) ) {
1501                                         ber_memfree( nbase.bv_val );
1502                                 }
1503
1504                                 if ( filter != NULL ) {
1505                                         filter_free( filter );
1506                                 }
1507
1508                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1509                                         c->log, c->cr_msg, 0 );
1510
1511                                 return rc;
1512                         }
1513
1514                         attridx++;
1515                 }
1516
1517                 rc = slap_str2ad( c->argv[ attridx ], &ad, &text );
1518                 if ( rc != LDAP_SUCCESS ) {
1519                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1520                                 "unable to find AttributeDescription \"%s\"",
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                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1528                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1529                                 "AttributeDescription \"%s\" "
1530                                 "must be a subtype of \"labeledURI\"",
1531                                 c->argv[ attridx ] );
1532                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1533                                 c->log, c->cr_msg, 0 );
1534                         return 1;
1535                 }
1536
1537                 attridx++;
1538
1539                 for ( i = attridx; i < c->argc; i++ ) {
1540                         char *arg;
1541                         char *cp;
1542                         AttributeDescription *member_ad = NULL;
1543                         AttributeDescription *mapped_ad = NULL;
1544                         dynlist_map_t *dlmp;
1545
1546
1547                         /*
1548                          * If no mapped attribute is given, dn is used
1549                          * for backward compatibility.
1550                          */
1551                         arg = c->argv[i];
1552                         if ( ( cp = strchr( arg, ':' ) ) != NULL ) {
1553                                 struct berval bv;
1554                                 ber_str2bv( arg, cp - arg, 0, &bv );
1555                                 rc = slap_bv2ad( &bv, &mapped_ad, &text );
1556                                 if ( rc != LDAP_SUCCESS ) {
1557                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1558                                                 DYNLIST_USAGE
1559                                                 "unable to find mapped AttributeDescription #%d \"%s\"\n",
1560                                                 i - 3, c->argv[ i ] );
1561                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1562                                                 c->log, c->cr_msg, 0 );
1563                                         return 1;
1564                                 }
1565                                 arg = cp + 1;
1566                         }
1567
1568                         rc = slap_str2ad( arg, &member_ad, &text );
1569                         if ( rc != LDAP_SUCCESS ) {
1570                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1571                                         DYNLIST_USAGE
1572                                         "unable to find AttributeDescription #%d \"%s\"\n",
1573                                         i - 3, c->argv[ i ] );
1574                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1575                                         c->log, c->cr_msg, 0 );
1576                                 return 1;
1577                         }
1578
1579                         dlmp = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1580                         if ( dlm == NULL ) {
1581                                 dlm = dlmp;
1582                         }
1583                         dlmp->dlm_member_ad = member_ad;
1584                         dlmp->dlm_mapped_ad = mapped_ad;
1585                         dlmp->dlm_next = NULL;
1586
1587                         if ( dlml != NULL )
1588                                 dlml->dlm_next = dlmp;
1589                         dlml = dlmp;
1590                 }
1591
1592                 if ( c->valx > 0 ) {
1593                         int     i;
1594
1595                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1596                                 i < c->valx; i++ )
1597                         {
1598                                 if ( *dlip == NULL ) {
1599                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1600                                                 DYNLIST_USAGE
1601                                                 "invalid index {%d}\n",
1602                                                 c->valx );
1603                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1604                                                 c->log, c->cr_msg, 0 );
1605                                         return 1;
1606                                 }
1607                                 dlip = &(*dlip)->dli_next;
1608                         }
1609                         dli_next = *dlip;
1610
1611                 } else {
1612                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1613                                 *dlip; dlip = &(*dlip)->dli_next )
1614                                 /* goto last */;
1615                 }
1616
1617                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1618
1619                 (*dlip)->dli_oc = oc;
1620                 (*dlip)->dli_ad = ad;
1621                 (*dlip)->dli_dlm = dlm;
1622                 (*dlip)->dli_next = dli_next;
1623
1624                 (*dlip)->dli_lud = lud;
1625                 (*dlip)->dli_uri_nbase = nbase;
1626                 (*dlip)->dli_uri_filter = filter;
1627                 (*dlip)->dli_uri = uri;
1628
1629                 rc = dynlist_build_def_filter( *dlip );
1630
1631                 } break;
1632
1633         case DL_ATTRPAIR_COMPAT:
1634                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1635                         "warning: \"attrpair\" only supported for limited "
1636                         "backward compatibility with overlay \"dyngroup\"" );
1637                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
1638                 /* fallthru */
1639
1640         case DL_ATTRPAIR: {
1641                 dynlist_info_t          **dlip;
1642                 ObjectClass             *oc = NULL;
1643                 AttributeDescription    *ad = NULL,
1644                                         *member_ad = NULL;
1645                 const char              *text;
1646
1647                 oc = oc_find( "groupOfURLs" );
1648                 if ( oc == NULL ) {
1649                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1650                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1651                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1652                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1653                                 c->log, c->cr_msg, 0 );
1654                         return 1;
1655                 }
1656
1657                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1658                 if ( rc != LDAP_SUCCESS ) {
1659                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1660                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1661                                 "unable to find AttributeDescription \"%s\"",
1662                                 c->argv[ 1 ] );
1663                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1664                                 c->log, c->cr_msg, 0 );
1665                         return 1;
1666                 }
1667
1668                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1669                 if ( rc != LDAP_SUCCESS ) {
1670                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1671                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1672                                 "unable to find AttributeDescription \"%s\"\n",
1673                                 c->argv[ 2 ] );
1674                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1675                                 c->log, c->cr_msg, 0 );
1676                         return 1;
1677                 }
1678
1679                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1680                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1681                                 DYNLIST_USAGE
1682                                 "AttributeDescription \"%s\" "
1683                                 "must be a subtype of \"labeledURI\"",
1684                                 c->argv[ 2 ] );
1685                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1686                                 c->log, c->cr_msg, 0 );
1687                         return 1;
1688                 }
1689
1690                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1691                         *dlip; dlip = &(*dlip)->dli_next )
1692                 {
1693                         /*
1694                          * The same URL attribute / member attribute pair
1695                          * cannot be repeated, but we enforce this only
1696                          * when the member attribute is unique. Performing
1697                          * the check for multiple values would require
1698                          * sorting and comparing the lists, which is left
1699                          * as a future improvement
1700                          */
1701                         if ( (*dlip)->dli_ad == ad &&
1702                              (*dlip)->dli_dlm->dlm_next == NULL &&
1703                              member_ad == (*dlip)->dli_dlm->dlm_member_ad ) {
1704                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1705                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1706                                         "URL attributeDescription \"%s\" already mapped.\n",
1707                                         ad->ad_cname.bv_val );
1708                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1709                                         c->log, c->cr_msg, 0 );
1710 #if 0
1711                                 /* make it a warning... */
1712                                 return 1;
1713 #endif
1714                         }
1715                 }
1716
1717                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1718
1719                 (*dlip)->dli_oc = oc;
1720                 (*dlip)->dli_ad = ad;
1721                 (*dlip)->dli_dlm = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1722                 (*dlip)->dli_dlm->dlm_member_ad = member_ad;
1723                 (*dlip)->dli_dlm->dlm_mapped_ad = NULL;
1724
1725                 rc = dynlist_build_def_filter( *dlip );
1726
1727                 } break;
1728
1729         default:
1730                 rc = 1;
1731                 break;
1732         }
1733
1734         return rc;
1735 }
1736 #endif
1737
1738 static int
1739 dynlist_db_open(
1740         BackendDB       *be,
1741         ConfigReply     *cr )
1742 {
1743         slap_overinst           *on = (slap_overinst *) be->bd_info;
1744         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1745         ObjectClass             *oc = NULL;
1746         AttributeDescription    *ad = NULL;
1747         const char      *text;
1748         int rc;
1749
1750         if ( dli == NULL ) {
1751                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1752                 on->on_bi.bi_private = (void *)dli;
1753         }
1754
1755         for ( ; dli; dli = dli->dli_next ) {
1756                 if ( dli->dli_oc == NULL ) {
1757                         if ( oc == NULL ) {
1758                                 oc = oc_find( "groupOfURLs" );
1759                                 if ( oc == NULL ) {
1760                                         snprintf( cr->msg, sizeof( cr->msg),
1761                                                 "unable to fetch objectClass \"groupOfURLs\"" );
1762                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1763                                         return 1;
1764                                 }
1765                         }
1766
1767                         dli->dli_oc = oc;
1768                 }
1769
1770                 if ( dli->dli_ad == NULL ) {
1771                         if ( ad == NULL ) {
1772                                 rc = slap_str2ad( "memberURL", &ad, &text );
1773                                 if ( rc != LDAP_SUCCESS ) {
1774                                         snprintf( cr->msg, sizeof( cr->msg),
1775                                                 "unable to fetch attributeDescription \"memberURL\": %d (%s)",
1776                                                 rc, text );
1777                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1778                                         return 1;
1779                                 }
1780                         }
1781
1782                         dli->dli_ad = ad;
1783                 }
1784
1785                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1786                         rc = dynlist_build_def_filter( dli );
1787                         if ( rc != 0 ) {
1788                                 return rc;
1789                         }
1790                 }
1791         }
1792
1793         if ( ad_dgIdentity == NULL ) {
1794                 rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text );
1795                 if ( rc != LDAP_SUCCESS ) {
1796                         snprintf( cr->msg, sizeof( cr->msg),
1797                                 "unable to fetch attributeDescription \"dgIdentity\": %d (%s)",
1798                                 rc, text );
1799                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1800                         /* Just a warning */
1801                 }
1802         }
1803
1804         if ( ad_dgAuthz == NULL ) {
1805                 rc = slap_str2ad( "dgAuthz", &ad_dgAuthz, &text );
1806                 if ( rc != LDAP_SUCCESS ) {
1807                         snprintf( cr->msg, sizeof( cr->msg),
1808                                 "unable to fetch attributeDescription \"dgAuthz\": %d (%s)",
1809                                 rc, text );
1810                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1811                         /* Just a warning */
1812                 }
1813         }
1814
1815         return 0;
1816 }
1817
1818 static int
1819 dynlist_db_destroy(
1820         BackendDB       *be,
1821         ConfigReply     *cr )
1822 {
1823         slap_overinst   *on = (slap_overinst *) be->bd_info;
1824
1825         if ( on->on_bi.bi_private ) {
1826                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1827                                 *dli_next;
1828
1829                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1830                         dynlist_map_t *dlm;
1831                         dynlist_map_t *dlm_next;
1832
1833                         dli_next = dli->dli_next;
1834
1835                         if ( !BER_BVISNULL( &dli->dli_uri ) ) {
1836                                 ch_free( dli->dli_uri.bv_val );
1837                         }
1838
1839                         if ( dli->dli_lud != NULL ) {
1840                                 ldap_free_urldesc( dli->dli_lud );
1841                         }
1842
1843                         if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) {
1844                                 ber_memfree( dli->dli_uri_nbase.bv_val );
1845                         }
1846
1847                         if ( dli->dli_uri_filter != NULL ) {
1848                                 filter_free( dli->dli_uri_filter );
1849                         }
1850
1851                         ch_free( dli->dli_default_filter.bv_val );
1852
1853                         dlm = dli->dli_dlm;
1854                         while ( dlm != NULL ) {
1855                                 dlm_next = dlm->dlm_next;
1856                                 ch_free( dlm );
1857                                 dlm = dlm_next;
1858                         }
1859                         ch_free( dli );
1860                 }
1861         }
1862
1863         return 0;
1864 }
1865
1866 static slap_overinst    dynlist = { { NULL } };
1867 #ifdef TAKEOVER_DYNGROUP
1868 static char             *obsolete_names[] = {
1869         "dyngroup",
1870         NULL
1871 };
1872 #endif
1873
1874 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1875 static
1876 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1877 int
1878 dynlist_initialize(void)
1879 {
1880 #ifndef OL_2_2_COMPAT
1881         int     rc = 0;
1882 #endif
1883
1884         dynlist.on_bi.bi_type = "dynlist";
1885
1886 #ifdef TAKEOVER_DYNGROUP
1887         /* makes dynlist incompatible with dyngroup */
1888         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1889 #endif
1890
1891 #ifdef OL_2_2_COMPAT
1892         dynlist.on_bi.bi_db_config = dynlist_db_config;
1893 #else
1894         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1895 #endif
1896         dynlist.on_bi.bi_db_open = dynlist_db_open;
1897         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1898
1899         dynlist.on_response = dynlist_response;
1900
1901 #ifndef OL_2_2_COMPAT
1902         dynlist.on_bi.bi_cf_ocs = dlocs;
1903
1904         rc = config_register_schema( dlcfg, dlocs );
1905         if ( rc ) {
1906                 return rc;
1907         }
1908 #endif
1909
1910         return overlay_register( &dynlist );
1911 }
1912
1913 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1914 int
1915 init_module( int argc, char *argv[] )
1916 {
1917         return dynlist_initialize();
1918 }
1919 #endif
1920
1921 #endif /* SLAPD_OVER_DYNLIST */