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

   1 /* dynlist.c - dynamic list overlay */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2007 The OpenLDAP Foundation.
   6  * Portions Copyright 2004-2005 Pierangelo Masarati.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by Pierangelo Masarati
  19  * for SysNet s.n.c., for inclusion in OpenLDAP Software.
  20  */
  21
  22 #include "portable.h"
  23
  24 #ifdef SLAPD_OVER_DYNLIST
  25
  26 #if LDAP_VENDOR_VERSION_MINOR == X || LDAP_VENDOR_VERSION_MINOR > 3
  27 #if SLAPD_OVER_DYNGROUP != SLAPD_MOD_STATIC
  28 #define TAKEOVER_DYNGROUP
  29 #endif
  30 #else
  31 #if LDAP_VENDOR_VERSION_MINOR < 3
  32 #define OL_2_2_COMPAT
  33 #endif
  34 #endif
  35
  36 #include <stdio.h>
  37
  38 #include <ac/string.h>
  39
  40 #include "slap.h"
  41 #ifndef OL_2_2_COMPAT
  42 #include "config.h"
  43 #endif
  44 #include "lutil.h"
  45
  46 /* FIXME: the code differs if SLAP_OPATTRS is defined or not;
  47  * SLAP_OPATTRS is not defined in 2.2 yet, while this overlay
  48  * expects HEAD code at least later than August 6, 2004. */
  49 /* FIXME: slap_anlist_no_attrs was introduced in 2.3; here it
  50  * is anticipated to allow using this overlay with 2.2. */
  51
  52 #ifdef OL_2_2_COMPAT
  53 static AttributeName anlist_no_attrs[] = {
  54         { BER_BVC( LDAP_NO_ATTRS ), NULL, 0, NULL },
  55         { BER_BVNULL, NULL, 0, NULL }
  56 };
  57
  58 static AttributeName *slap_anlist_no_attrs = anlist_no_attrs;
  59 #endif
  60
  61 static AttributeDescription *ad_dgIdentity;
  62
  63 typedef struct dynlist_info_t {
  64         ObjectClass             *dli_oc;
  65         AttributeDescription    *dli_ad;
  66         AttributeDescription    *dli_member_ad;
  67         struct berval           dli_default_filter;
  68         struct dynlist_info_t   *dli_next;
  69 } dynlist_info_t;
  70
  71 static dynlist_info_t *
  72 dynlist_is_dynlist_next( Operation *op, SlapReply *rs, dynlist_info_t *old_dli )
  73 {
  74         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
  75         dynlist_info_t  *dli;
  76
  77         Attribute       *a;
  78
  79         if ( old_dli == NULL ) {
  80                 dli = (dynlist_info_t *)on->on_bi.bi_private;
  81
  82         } else {
  83                 dli = old_dli->dli_next;
  84         }
  85
  86         a = attrs_find( rs->sr_entry->e_attrs, slap_schema.si_ad_objectClass );
  87         if ( a == NULL ) {
  88                 /* FIXME: objectClass must be present; for non-storage
  89                  * backends, like back-ldap, it needs to be added
  90                  * to the requested attributes */
  91                 return NULL;
  92         }
  93
  94         for ( ; dli; dli = dli->dli_next ) {
  95                 if ( attr_valfind( a,
  96                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  97                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  98                                 &dli->dli_oc->soc_cname, NULL,
  99                                 op->o_tmpmemctx ) == 0 )
 100                 {
 101                         return dli;
 102                 }
 103         }
 104
 105         return NULL;
 106 }
 107
 108 static int
 109 dynlist_make_filter( Operation *op, struct berval *oldf, struct berval *newf )
 110 {
 111         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 112         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 113
 114         char            *ptr;
 115
 116         assert( oldf != NULL );
 117         assert( newf != NULL );
 118         assert( !BER_BVISNULL( oldf ) );
 119         assert( !BER_BVISEMPTY( oldf ) );
 120
 121         newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" )
 122                 + dli->dli_oc->soc_cname.bv_len + oldf->bv_len;
 123         newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx );
 124         if ( newf->bv_val == NULL ) {
 125                 return -1;
 126         }
 127         ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" );
 128         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 129         ptr = lutil_strcopy( ptr, "))" );
 130         ptr = lutil_strcopy( ptr, oldf->bv_val );
 131         ptr = lutil_strcopy( ptr, ")" );
 132         newf->bv_len = ptr - newf->bv_val;
 133
 134         return 0;
 135 }
 136
 137 typedef struct dynlist_sc_t {
 138         dynlist_info_t    *dlc_dli;
 139         Entry           *dlc_e;
 140 } dynlist_sc_t;
 141
 142 static int
 143 dynlist_sc_update( Operation *op, SlapReply *rs )
 144 {
 145         Entry                   *e;
 146         Attribute               *a;
 147         int                     opattrs,
 148                                 userattrs;
 149         AccessControlState      acl_state = ACL_STATE_INIT;
 150
 151         dynlist_sc_t            *dlc;
 152
 153         if ( rs->sr_type != REP_SEARCH ) {
 154                 return 0;
 155         }
 156
 157         dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 158         e = dlc->dlc_e;
 159
 160         assert( e != NULL );
 161         assert( rs->sr_entry != NULL );
 162
 163         /* test access to entry */
 164         if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 165                                 NULL, ACL_READ, NULL ) )
 166         {
 167                 goto done;
 168         }
 169
 170         if ( dlc->dlc_dli->dli_member_ad ) {
 171
 172                 /* if access allowed, try to add values, emulating permissive
 173                  * control to silently ignore duplicates */
 174                 if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 175                                         NULL, ACL_READ, NULL ) )
 176                 {
 177                         Modification    mod;
 178                         const char      *text = NULL;
 179                         char            textbuf[1024];
 180                         struct berval   vals[ 2 ], nvals[ 2 ];
 181
 182                         vals[ 0 ] = rs->sr_entry->e_name;
 183                         BER_BVZERO( &vals[ 1 ] );
 184                         nvals[ 0 ] = rs->sr_entry->e_nname;
 185                         BER_BVZERO( &nvals[ 1 ] );
 186
 187                         mod.sm_op = LDAP_MOD_ADD;
 188                         mod.sm_desc = dlc->dlc_dli->dli_member_ad;
 189                         mod.sm_type = dlc->dlc_dli->dli_member_ad->ad_cname;
 190                         mod.sm_values = vals;
 191                         mod.sm_nvalues = nvals;
 192                         mod.sm_numvals = 1;
 193
 194                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 195                                         &text, textbuf, sizeof( textbuf ) );
 196                 }
 197
 198                 goto done;
 199         }
 200
 201 #ifndef SLAP_OPATTRS
 202         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 203         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 204 #else /* SLAP_OPATTRS */
 205         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 206         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 207 #endif /* SLAP_OPATTRS */
 208
 209         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 210                 BerVarray       vals, nvals = NULL;
 211                 int             i, j,
 212                                 is_oc = a->a_desc == slap_schema.si_ad_objectClass;
 213
 214                 /* if attribute is not requested, skip it */
 215                 if ( rs->sr_attrs == NULL ) {
 216                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 217                                 continue;
 218                         }
 219
 220                 } else {
 221                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 222                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 223                                 {
 224                                         continue;
 225                                 }
 226
 227                         } else {
 228                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 229                                 {
 230                                         continue;
 231                                 }
 232                         }
 233                 }
 234
 235                 /* test access to attribute */
 236                 if ( op->ors_attrsonly ) {
 237                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 238                                                 ACL_READ, &acl_state ) )
 239                         {
 240                                 continue;
 241                         }
 242                 }
 243
 244                 /* single-value check: keep first only */
 245                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 246                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 247                                 continue;
 248                         }
 249                 }
 250
 251                 /* test access to attribute */
 252                 i = a->a_numvals;
 253
 254                 vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 255                 if ( a->a_nvals != a->a_vals ) {
 256                         nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 257                 }
 258
 259                 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
 260                         if ( is_oc ) {
 261                                 ObjectClass     *soc = oc_bvfind( &a->a_vals[i] );
 262
 263                                 if ( soc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 264                                         continue;
 265                                 }
 266                         }
 267
 268                         if ( access_allowed( op, rs->sr_entry, a->a_desc,
 269                                                 &a->a_nvals[i], ACL_READ, &acl_state ) )
 270                         {
 271                                 vals[j] = a->a_vals[i];
 272                                 if ( nvals ) {
 273                                         nvals[j] = a->a_nvals[i];
 274                                 }
 275                                 j++;
 276                         }
 277                 }
 278
 279                 /* if access allowed, try to add values, emulating permissive
 280                  * control to silently ignore duplicates */
 281                 if ( j != 0 ) {
 282                         Modification    mod;
 283                         const char      *text = NULL;
 284                         char            textbuf[1024];
 285
 286                         BER_BVZERO( &vals[j] );
 287                         if ( nvals ) {
 288                                 BER_BVZERO( &nvals[j] );
 289                         }
 290
 291                         mod.sm_op = LDAP_MOD_ADD;
 292                         mod.sm_desc = a->a_desc;
 293                         mod.sm_type = a->a_desc->ad_cname;
 294                         mod.sm_values = vals;
 295                         mod.sm_nvalues = nvals;
 296                         mod.sm_numvals = j;
 297
 298                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 299                                         &text, textbuf, sizeof( textbuf ) );
 300                 }
 301
 302                 op->o_tmpfree( vals, op->o_tmpmemctx );
 303                 if ( nvals ) {
 304                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 305                 }
 306         }
 307
 308 done:;
 309         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 310                 entry_free( rs->sr_entry );
 311                 rs->sr_entry = NULL;
 312                 rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
 313         }
 314
 315         return 0;
 316 }
 317
 318 static int
 319 dynlist_prepare_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 320 {
 321         Attribute       *a, *id = NULL;
 322         slap_callback   cb;
 323         Operation       o = *op;
 324         SlapReply       r = { REP_SEARCH };
 325         struct berval   *url;
 326         Entry           *e;
 327         slap_mask_t     e_flags;
 328         int             opattrs,
 329                         userattrs;
 330         dynlist_sc_t    dlc = { 0 };
 331
 332         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 333         if ( a == NULL ) {
 334                 /* FIXME: error? */
 335                 return SLAP_CB_CONTINUE;
 336         }
 337
 338 #ifndef SLAP_OPATTRS
 339         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 340         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 341 #else /* SLAP_OPATTRS */
 342         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 343         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 344 #endif /* SLAP_OPATTRS */
 345
 346         /* Don't generate member list if it wasn't requested */
 347         if ( dli->dli_member_ad && !userattrs && !ad_inlist( dli->dli_member_ad, rs->sr_attrs ) ) {
 348                 return SLAP_CB_CONTINUE;
 349         }
 350
 351         if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
 352                 e = entry_dup( rs->sr_entry );
 353         } else {
 354                 e = rs->sr_entry;
 355         }
 356         e_flags = rs->sr_flags | ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 357
 358         if ( ad_dgIdentity && ( id = attrs_find( e->e_attrs, ad_dgIdentity ))) {
 359                 o.o_dn = id->a_vals[0];
 360                 o.o_ndn = id->a_nvals[0];
 361                 o.o_groups = NULL;
 362         }
 363
 364         dlc.dlc_e = e;
 365         dlc.dlc_dli = dli;
 366         cb.sc_private = &dlc;
 367         cb.sc_response = dynlist_sc_update;
 368         cb.sc_cleanup = NULL;
 369         cb.sc_next = NULL;
 370
 371         o.o_callback = &cb;
 372         o.ors_deref = LDAP_DEREF_NEVER;
 373         o.ors_limit = NULL;
 374         o.ors_tlimit = SLAP_NO_LIMIT;
 375         o.ors_slimit = SLAP_NO_LIMIT;
 376
 377         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 378                 LDAPURLDesc     *lud = NULL;
 379                 int             i, j;
 380                 struct berval   dn;
 381                 int             rc;
 382
 383                 BER_BVZERO( &o.o_req_dn );
 384                 BER_BVZERO( &o.o_req_ndn );
 385                 o.ors_filter = NULL;
 386                 o.ors_attrs = NULL;
 387                 BER_BVZERO( &o.ors_filterstr );
 388
 389                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 390                         /* FIXME: error? */
 391                         continue;
 392                 }
 393
 394                 if ( lud->lud_host != NULL ) {
 395                         /* FIXME: host not allowed; reject as illegal? */
 396                         Debug( LDAP_DEBUG_ANY, "dynlist_prepare_entry(\"%s\"): "
 397                                 "illegal URI \"%s\"\n",
 398                                 e->e_name.bv_val, url->bv_val, 0 );
 399                         goto cleanup;
 400                 }
 401
 402                 if ( lud->lud_dn == NULL ) {
 403                         /* note that an empty base is not honored in terms
 404                          * of defaultSearchBase, because select_backend()
 405                          * is not aware of the defaultSearchBase option;
 406                          * this can be useful in case of a database serving
 407                          * the empty suffix */
 408                         BER_BVSTR( &dn, "" );
 409
 410                 } else {
 411                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 412                 }
 413                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 414                 if ( rc != LDAP_SUCCESS ) {
 415                         /* FIXME: error? */
 416                         goto cleanup;
 417                 }
 418                 o.ors_scope = lud->lud_scope;
 419
 420                 if ( dli->dli_member_ad != NULL ) {
 421                         /* if ( lud->lud_attrs != NULL ),
 422                          * the URL should be ignored */
 423                         o.ors_attrs = slap_anlist_no_attrs;
 424
 425                 } else if ( lud->lud_attrs == NULL ) {
 426                         o.ors_attrs = rs->sr_attrs;
 427
 428                 } else {
 429                         for ( i = 0; lud->lud_attrs[i]; i++)
 430                                 /* just count */ ;
 431
 432                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 433                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 434                                 const char      *text = NULL;
 435
 436                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 437                                 o.ors_attrs[j].an_desc = NULL;
 438                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 439                                 /* FIXME: ignore errors... */
 440
 441                                 if ( rs->sr_attrs == NULL ) {
 442                                         if ( o.ors_attrs[j].an_desc != NULL &&
 443                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 444                                         {
 445                                                 continue;
 446                                         }
 447
 448                                 } else {
 449                                         if ( o.ors_attrs[j].an_desc != NULL &&
 450                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 451                                         {
 452                                                 if ( !opattrs && !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 453                                                 {
 454                                                         continue;
 455                                                 }
 456
 457                                         } else {
 458                                                 if ( !userattrs &&
 459                                                                 o.ors_attrs[j].an_desc != NULL &&
 460                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 461                                                 {
 462                                                         continue;
 463                                                 }
 464                                         }
 465                                 }
 466
 467                                 j++;
 468                         }
 469
 470                         if ( j == 0 ) {
 471                                 goto cleanup;
 472                         }
 473
 474                         BER_BVZERO( &o.ors_attrs[j].an_name );
 475                 }
 476
 477                 if ( lud->lud_filter == NULL ) {
 478                         ber_dupbv_x( &o.ors_filterstr,
 479                                         &dli->dli_default_filter, op->o_tmpmemctx );
 480
 481                 } else {
 482                         struct berval   flt;
 483                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 484                         if ( dynlist_make_filter( op, &flt, &o.ors_filterstr ) ) {
 485                                 /* error */
 486                                 goto cleanup;
 487                         }
 488                 }
 489                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 490                 if ( o.ors_filter == NULL ) {
 491                         goto cleanup;
 492                 }
 493
 494                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 495                 if ( o.o_bd && o.o_bd->be_search ) {
 496 #ifdef SLAP_OPATTRS
 497                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 498 #endif /* SLAP_OPATTRS */
 499                         (void)o.o_bd->be_search( &o, &r );
 500                 }
 501
 502 cleanup:;
 503                 if ( id ) {
 504                         slap_op_groups_free( &o );
 505                 }
 506                 if ( o.ors_filter ) {
 507                         filter_free_x( &o, o.ors_filter );
 508                 }
 509                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 510                                 && o.ors_attrs != slap_anlist_no_attrs )
 511                 {
 512                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 513                 }
 514                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 515                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 516                 }
 517                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 518                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 519                 }
 520                 assert( BER_BVISNULL( &o.ors_filterstr )
 521                         || o.ors_filterstr.bv_val != lud->lud_filter );
 522                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 523                 ldap_free_urldesc( lud );
 524         }
 525
 526         rs->sr_entry = e;
 527         rs->sr_flags = e_flags;
 528
 529         return SLAP_CB_CONTINUE;
 530 }
 531
 532 static int
 533 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 534 {
 535         /* save the entry in the private field of the callback,
 536          * so it doesn't get freed (it's temporary!) */
 537         if ( rs->sr_entry != NULL ) {
 538                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 539                 dlc->dlc_e = rs->sr_entry;
 540                 rs->sr_entry = NULL;
 541         }
 542
 543         return 0;
 544 }
 545
 546 static int
 547 dynlist_compare( Operation *op, SlapReply *rs )
 548 {
 549         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 550         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 551         Operation o = *op;
 552         Entry *e = NULL;
 553
 554         for ( ; dli != NULL; dli = dli->dli_next ) {
 555                 if ( op->oq_compare.rs_ava->aa_desc == dli->dli_member_ad ) {
 556                         /* This compare is for one of the attributes we're
 557                          * interested in. We'll use slapd's existing dyngroup
 558                          * evaluator to get the answer we want.
 559                          */
 560                         struct berval *id = NULL;
 561
 562                         o.o_do_not_cache = 1;
 563
 564                         if ( ad_dgIdentity && backend_attribute( &o, NULL, &o.o_req_ndn,
 565                                 ad_dgIdentity, &id, ACL_READ ) == LDAP_SUCCESS ) {
 566                                 o.o_dn = *id;
 567                                 o.o_ndn = *id;
 568                                 o.o_groups = NULL; /* authz changed, invalidate cached groups */
 569                         }
 570                         rs->sr_err = backend_group( &o, NULL, &o.o_req_ndn,
 571                                 &o.oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 572                         switch ( rs->sr_err ) {
 573                         case LDAP_SUCCESS:
 574                                 rs->sr_err = LDAP_COMPARE_TRUE;
 575                                 break;
 576
 577                         case LDAP_NO_SUCH_OBJECT:
 578                                 /* NOTE: backend_group() returns noSuchObject
 579                                  * if op_ndn does not exist; however, since
 580                                  * dynamic list expansion means that the
 581                                  * member attribute is virtually present, the
 582                                  * non-existence of the asserted value implies
 583                                  * the assertion is FALSE rather than
 584                                  * UNDEFINED */
 585                                 rs->sr_err = LDAP_COMPARE_FALSE;
 586                                 break;
 587                         }
 588
 589                         if ( id ) ber_bvarray_free_x( id, o.o_tmpmemctx );
 590
 591                         return SLAP_CB_CONTINUE;
 592                 }
 593         }
 594
 595         if ( overlay_entry_get_ov( &o, &o.o_req_ndn, NULL, NULL, 0, &e, on ) !=
 596                 LDAP_SUCCESS || e == NULL ) {
 597                 return SLAP_CB_CONTINUE;
 598         }
 599         if ( ad_dgIdentity ) {
 600                 Attribute *id = attrs_find( e->e_attrs, ad_dgIdentity );
 601                 if ( id ) {
 602                         o.o_dn = id->a_vals[0];
 603                         o.o_ndn = id->a_nvals[0];
 604                         o.o_groups = NULL;
 605                 }
 606         }
 607         dli = (dynlist_info_t *)on->on_bi.bi_private;
 608         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 609                 Attribute       *a;
 610                 slap_callback   cb;
 611                 SlapReply       r = { REP_SEARCH };
 612                 AttributeName   an[2];
 613                 int             rc;
 614                 dynlist_sc_t    dlc = { 0 };
 615
 616                 if ( !is_entry_objectclass_or_sub( e, dli->dli_oc ))
 617                         continue;
 618
 619                 /* if the entry has the right objectClass, generate
 620                  * the dynamic list and compare */
 621                 dlc.dlc_dli = dli;
 622                 cb.sc_private = &dlc;
 623                 cb.sc_response = dynlist_sc_save_entry;
 624                 cb.sc_cleanup = NULL;
 625                 cb.sc_next = NULL;
 626                 o.o_callback = &cb;
 627
 628                 o.o_tag = LDAP_REQ_SEARCH;
 629                 o.ors_limit = NULL;
 630                 o.ors_tlimit = SLAP_NO_LIMIT;
 631                 o.ors_slimit = SLAP_NO_LIMIT;
 632
 633                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 634                 if ( !o.o_bd || !o.o_bd->be_search ) {
 635                         goto release;
 636                 }
 637
 638                 o.ors_filterstr = *slap_filterstr_objectClass_pres;
 639                 o.ors_filter = (Filter *) slap_filter_objectClass_pres;
 640
 641                 o.ors_scope = LDAP_SCOPE_BASE;
 642                 o.ors_deref = LDAP_DEREF_NEVER;
 643                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 644                 an[0].an_desc = op->orc_ava->aa_desc;
 645                 BER_BVZERO( &an[1].an_name );
 646                 o.ors_attrs = an;
 647                 o.ors_attrsonly = 0;
 648
 649                 o.o_acl_priv = ACL_COMPARE;
 650
 651                 rc = o.o_bd->be_search( &o, &r );
 652
 653                 if ( o.o_dn.bv_val != op->o_dn.bv_val ) {
 654                         slap_op_groups_free( &o );
 655                 }
 656
 657                 if ( rc != 0 ) {
 658                         goto release;
 659                 }
 660
 661                 if ( dlc.dlc_e != NULL ) {
 662                         r.sr_entry = dlc.dlc_e;
 663                 }
 664
 665                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 666                         /* error? */
 667                         goto release;
 668                 }
 669
 670                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 671                         a != NULL;
 672                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 673                 {
 674                         /* if we're here, we got a match... */
 675                         rs->sr_err = LDAP_COMPARE_FALSE;
 676
 677                         if ( attr_valfind( a,
 678                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 679                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 680                                 &op->orc_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
 681                         {
 682                                 rs->sr_err = LDAP_COMPARE_TRUE;
 683                                 break;
 684                         }
 685                 }
 686
 687                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 688                         entry_free( r.sr_entry );
 689                 }
 690         }
 691
 692 release:;
 693         if ( e != NULL ) {
 694                 overlay_entry_release_ov( &o, e, 0, on );
 695         }
 696
 697         return SLAP_CB_CONTINUE;
 698 }
 699
 700 static int
 701 dynlist_response( Operation *op, SlapReply *rs )
 702 {
 703         dynlist_info_t  *dli;
 704
 705         switch ( op->o_tag ) {
 706         case LDAP_REQ_SEARCH:
 707                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 708                 {
 709                         int     rc = LDAP_OTHER;
 710
 711                         for ( dli = dynlist_is_dynlist_next( op, rs, NULL );
 712                                 dli;
 713                                 dli = dynlist_is_dynlist_next( op, rs, dli ) )
 714                         {
 715                                 rc = dynlist_prepare_entry( op, rs, dli );
 716                         }
 717
 718                         if ( rc != LDAP_OTHER ) {
 719                                 return rc;
 720                         }
 721                 }
 722                 break;
 723
 724         case LDAP_REQ_COMPARE:
 725                 switch ( rs->sr_err ) {
 726                 /* NOTE: we waste a few cycles running the dynamic list
 727                  * also when the result is FALSE, which occurs if the
 728                  * dynamic entry itself contains the AVA attribute  */
 729                 /* FIXME: this approach is less than optimal; a dedicated
 730                  * compare op should be implemented, that fetches the
 731                  * entry, checks if it has the appropriate objectClass
 732                  * and, in case, runs a compare thru all the URIs,
 733                  * stopping at the first positive occurrence; see ITS#3756 */
 734                 case LDAP_COMPARE_FALSE:
 735                 case LDAP_NO_SUCH_ATTRIBUTE:
 736                         return dynlist_compare( op, rs );
 737                 }
 738                 break;
 739
 740         default:
 741                 break;
 742         }
 743
 744         return SLAP_CB_CONTINUE;
 745 }
 746
 747 static int
 748 dynlist_build_def_filter( dynlist_info_t *dli )
 749 {
 750         char    *ptr;
 751
 752         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 753                 + dli->dli_oc->soc_cname.bv_len;
 754         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 755         if ( dli->dli_default_filter.bv_val == NULL ) {
 756                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 757                         0, 0, 0 );
 758                 return -1;
 759         }
 760
 761         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 762         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 763         ptr = lutil_strcopy( ptr, "))" );
 764
 765         assert( dli->dli_default_filter.bv_len == ptr - dli->dli_default_filter.bv_val );
 766
 767         return 0;
 768 }
 769
 770 #ifdef OL_2_2_COMPAT
 771 static int
 772 dynlist_db_config(
 773         BackendDB       *be,
 774         const char      *fname,
 775         int             lineno,
 776         int             argc,
 777         char            **argv )
 778 {
 779         slap_overinst   *on = (slap_overinst *)be->bd_info;
 780
 781         int             rc = 0;
 782
 783         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 784                 dynlist_info_t          **dlip;
 785                 ObjectClass             *oc;
 786                 AttributeDescription    *ad = NULL,
 787                                         *member_ad = NULL;
 788                 const char              *text;
 789
 790                 if ( argc < 3 || argc > 4 ) {
 791                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 792                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 793                                 "invalid arg number #%d.\n",
 794                                 fname, lineno, argc );
 795                         return 1;
 796                 }
 797
 798                 oc = oc_find( argv[1] );
 799                 if ( oc == NULL ) {
 800                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 801                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 802                                 "unable to find ObjectClass \"%s\"\n",
 803                                 fname, lineno, argv[ 1 ] );
 804                         return 1;
 805                 }
 806
 807                 rc = slap_str2ad( argv[2], &ad, &text );
 808                 if ( rc != LDAP_SUCCESS ) {
 809                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 810                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 811                                 "unable to find AttributeDescription \"%s\"\n",
 812                                 fname, lineno, argv[2] );
 813                         return 1;
 814                 }
 815
 816                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 817                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 818                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 819                                 "AttributeDescription \"%s\" "
 820                                 "must be a subtype of \"labeledURI\"\n",
 821                                 fname, lineno, argv[2] );
 822                         return 1;
 823                 }
 824
 825                 if ( argc == 4 ) {
 826                         rc = slap_str2ad( argv[3], &member_ad, &text );
 827                         if ( rc != LDAP_SUCCESS ) {
 828                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 829                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 830                                         "unable to find AttributeDescription \"%s\"\n",
 831                                         fname, lineno, argv[3] );
 832                                 return 1;
 833                         }
 834                 }
 835
 836                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 837                         *dlip; dlip = &(*dlip)->dli_next )
 838                 {
 839                         /* The same URL attribute / member attribute pair
 840                          * cannot be repeated */
 841                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 842                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 843                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 844                                         "URL attributeDescription \"%s\" already mapped.\n",
 845                                         fname, lineno, ad->ad_cname.bv_val );
 846 #if 0
 847                                 /* make it a warning... */
 848                                 return 1;
 849 #endif
 850                         }
 851                 }
 852
 853                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 854                 (*dlip)->dli_oc = oc;
 855                 (*dlip)->dli_ad = ad;
 856                 (*dlip)->dli_member_ad = member_ad;
 857
 858                 if ( dynlist_build_def_filter( *dlip ) ) {
 859                         ch_free( *dlip );
 860                         *dlip = NULL;
 861                         return 1;
 862                 }
 863
 864         /* allow dyngroup syntax */
 865         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
 866                 dynlist_info_t          **dlip;
 867                 ObjectClass             *oc;
 868                 AttributeDescription    *ad = NULL,
 869                                         *member_ad = NULL;
 870                 const char              *text;
 871
 872                 if ( argc != 3 ) {
 873                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 874                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 875                                 "invalid arg number #%d.\n",
 876                                 fname, lineno, argc );
 877                         return 1;
 878                 }
 879
 880                 oc = oc_find( "groupOfURLs" );
 881                 if ( oc == NULL ) {
 882                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 883                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 884                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
 885                                 fname, lineno, 0 );
 886                         return 1;
 887                 }
 888
 889                 rc = slap_str2ad( argv[1], &member_ad, &text );
 890                 if ( rc != LDAP_SUCCESS ) {
 891                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 892                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 893                                 "unable to find AttributeDescription \"%s\"\n",
 894                                 fname, lineno, argv[1] );
 895                         return 1;
 896                 }
 897
 898                 rc = slap_str2ad( argv[2], &ad, &text );
 899                 if ( rc != LDAP_SUCCESS ) {
 900                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 901                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 902                                 "unable to find AttributeDescription \"%s\"\n",
 903                                 fname, lineno, argv[2] );
 904                         return 1;
 905                 }
 906
 907                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 908                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 909                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 910                                 "AttributeDescription \"%s\" "
 911                                 "must be a subtype of \"labeledURI\"\n",
 912                                 fname, lineno, argv[2] );
 913                         return 1;
 914                 }
 915
 916                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 917                         *dlip; dlip = &(*dlip)->dli_next )
 918                 {
 919                         /* The same URL attribute / member attribute pair
 920                          * cannot be repeated */
 921                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 922                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 923                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 924                                         "URL attributeDescription \"%s\" already mapped.\n",
 925                                         fname, lineno, ad->ad_cname.bv_val );
 926 #if 0
 927                                 /* make it a warning... */
 928                                 return 1;
 929 #endif
 930                         }
 931                 }
 932
 933                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 934                 (*dlip)->dli_oc = oc;
 935                 (*dlip)->dli_ad = ad;
 936                 (*dlip)->dli_member_ad = member_ad;
 937
 938                 if ( dynlist_build_def_filter( *dlip ) ) {
 939                         ch_free( *dlip );
 940                         *dlip = NULL;
 941                         return 1;
 942                 }
 943
 944         } else {
 945                 rc = SLAP_CONF_UNKNOWN;
 946         }
 947
 948         return rc;
 949 }
 950
 951 #else
 952 enum {
 953         DL_ATTRSET = 1,
 954         DL_ATTRPAIR,
 955         DL_ATTRPAIR_COMPAT,
 956         DL_LAST
 957 };
 958
 959 static ConfigDriver     dl_cfgen;
 960
 961 static ConfigTable dlcfg[] = {
 962         { "dynlist-attrset", "group-oc> <URL-ad> <member-ad",
 963                 3, 4, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
 964                 "( OLcfgOvAt:8.1 NAME 'olcDLattrSet' "
 965                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
 966                         "EQUALITY caseIgnoreMatch "
 967                         "SYNTAX OMsDirectoryString "
 968                         "X-ORDERED 'VALUES' )",
 969                         NULL, NULL },
 970         { "dynlist-attrpair", "member-ad> <URL-ad",
 971                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
 972                         NULL, NULL, NULL },
 973 #ifdef TAKEOVER_DYNGROUP
 974         { "attrpair", "member-ad> <URL-ad",
 975                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
 976                         NULL, NULL, NULL },
 977 #endif
 978         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
 979 };
 980
 981 static ConfigOCs dlocs[] = {
 982         { "( OLcfgOvOc:8.1 "
 983                 "NAME 'olcDynamicList' "
 984                 "DESC 'Dynamic list configuration' "
 985                 "SUP olcOverlayConfig "
 986                 "MAY olcDLattrSet )",
 987                 Cft_Overlay, dlcfg, NULL, NULL },
 988         { NULL, 0, NULL }
 989 };
 990
 991 static int
 992 dl_cfgen( ConfigArgs *c )
 993 {
 994         slap_overinst   *on = (slap_overinst *)c->bi;
 995         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 996
 997         int             rc = 0, i;
 998
 999         if ( c->op == SLAP_CONFIG_EMIT ) {
1000                 switch( c->type ) {
1001                 case DL_ATTRSET:
1002                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
1003                                 struct berval   bv;
1004                                 char            *ptr = c->cr_msg;
1005
1006                                 assert( dli->dli_oc != NULL );
1007                                 assert( dli->dli_ad != NULL );
1008
1009                                 ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ),
1010                                         SLAP_X_ORDERED_FMT "%s %s", i,
1011                                         dli->dli_oc->soc_cname.bv_val,
1012                                         dli->dli_ad->ad_cname.bv_val );
1013
1014                                 if ( dli->dli_member_ad != NULL ) {
1015                                         ptr[ 0 ] = ' ';
1016                                         ptr++;
1017                                         ptr = lutil_strcopy( ptr, dli->dli_member_ad->ad_cname.bv_val );
1018                                 }
1019
1020                                 bv.bv_val = c->cr_msg;
1021                                 bv.bv_len = ptr - bv.bv_val;
1022                                 value_add_one( &c->rvalue_vals, &bv );
1023                         }
1024                         break;
1025
1026                 case DL_ATTRPAIR_COMPAT:
1027                 case DL_ATTRPAIR:
1028                         rc = 1;
1029                         break;
1030
1031                 default:
1032                         rc = 1;
1033                         break;
1034                 }
1035
1036                 return rc;
1037
1038         } else if ( c->op == LDAP_MOD_DELETE ) {
1039                 switch( c->type ) {
1040                 case DL_ATTRSET:
1041                         if ( c->valx < 0 ) {
1042                                 dynlist_info_t  *dli_next;
1043
1044                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1045                                         dli_next = dli->dli_next;
1046
1047                                         ch_free( dli->dli_default_filter.bv_val );
1048                                         ch_free( dli );
1049                                 }
1050
1051                                 on->on_bi.bi_private = NULL;
1052
1053                         } else {
1054                                 dynlist_info_t  **dlip;
1055
1056                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1057                                         i < c->valx; i++ )
1058                                 {
1059                                         if ( *dlip == NULL ) {
1060                                                 return 1;
1061                                         }
1062                                         dlip = &(*dlip)->dli_next;
1063                                 }
1064
1065                                 dli = *dlip;
1066                                 *dlip = dli->dli_next;
1067                                 ch_free( dli->dli_default_filter.bv_val );
1068                                 ch_free( dli );
1069
1070                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1071                         }
1072                         break;
1073
1074                 case DL_ATTRPAIR_COMPAT:
1075                 case DL_ATTRPAIR:
1076                         rc = 1;
1077                         break;
1078
1079                 default:
1080                         rc = 1;
1081                         break;
1082                 }
1083
1084                 return rc;
1085         }
1086
1087         switch( c->type ) {
1088         case DL_ATTRSET: {
1089                 dynlist_info_t          **dlip,
1090                                         *dli_next = NULL;
1091                 ObjectClass             *oc = NULL;
1092                 AttributeDescription    *ad = NULL,
1093                                         *member_ad = NULL;
1094                 const char              *text;
1095
1096                 oc = oc_find( c->argv[ 1 ] );
1097                 if ( oc == NULL ) {
1098                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1099                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1100                                 "unable to find ObjectClass \"%s\"",
1101                                 c->argv[ 1 ] );
1102                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1103                                 c->log, c->cr_msg, 0 );
1104                         return 1;
1105                 }
1106
1107                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1108                 if ( rc != LDAP_SUCCESS ) {
1109                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1110                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1111                                 "unable to find AttributeDescription \"%s\"",
1112                                 c->argv[ 2 ] );
1113                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1114                                 c->log, c->cr_msg, 0 );
1115                         return 1;
1116                 }
1117
1118                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1119                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1120                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1121                                 "AttributeDescription \"%s\" "
1122                                 "must be a subtype of \"labeledURI\"",
1123                                 c->argv[ 2 ] );
1124                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1125                                 c->log, c->cr_msg, 0 );
1126                         return 1;
1127                 }
1128
1129                 if ( c->argc == 4 ) {
1130                         rc = slap_str2ad( c->argv[ 3 ], &member_ad, &text );
1131                         if ( rc != LDAP_SUCCESS ) {
1132                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1133                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1134                                         "unable to find AttributeDescription \"%s\"\n",
1135                                         c->argv[ 3 ] );
1136                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1137                                         c->log, c->cr_msg, 0 );
1138                                 return 1;
1139                         }
1140                 }
1141
1142                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1143                         *dlip; dlip = &(*dlip)->dli_next )
1144                 {
1145                         /* The same URL attribute / member attribute pair
1146                          * cannot be repeated */
1147                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1148                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1149                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1150                                         "URL attributeDescription \"%s\" already mapped.\n",
1151                                         ad->ad_cname.bv_val );
1152                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1153                                         c->log, c->cr_msg, 0 );
1154 #if 0
1155                                 /* make it a warning... */
1156                                 return 1;
1157 #endif
1158                         }
1159                 }
1160
1161                 if ( c->valx > 0 ) {
1162                         int     i;
1163
1164                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1165                                 i < c->valx; i++ )
1166                         {
1167                                 if ( *dlip == NULL ) {
1168                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1169                                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1170                                                 "invalid index {%d}\n",
1171                                                 c->valx );
1172                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1173                                                 c->log, c->cr_msg, 0 );
1174                                         return 1;
1175                                 }
1176                                 dlip = &(*dlip)->dli_next;
1177                         }
1178                         dli_next = *dlip;
1179
1180                 } else {
1181                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1182                                 *dlip; dlip = &(*dlip)->dli_next )
1183                                 /* goto last */;
1184                 }
1185
1186                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1187
1188                 (*dlip)->dli_oc = oc;
1189                 (*dlip)->dli_ad = ad;
1190                 (*dlip)->dli_member_ad = member_ad;
1191                 (*dlip)->dli_next = dli_next;
1192
1193                 rc = dynlist_build_def_filter( *dlip );
1194
1195                 } break;
1196
1197         case DL_ATTRPAIR_COMPAT:
1198                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1199                         "warning: \"attrpair\" only supported for limited "
1200                         "backward compatibility with overlay \"dyngroup\"" );
1201                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
1202                 /* fallthru */
1203
1204         case DL_ATTRPAIR: {
1205                 dynlist_info_t          **dlip;
1206                 ObjectClass             *oc = NULL;
1207                 AttributeDescription    *ad = NULL,
1208                                         *member_ad = NULL;
1209                 const char              *text;
1210
1211                 oc = oc_find( "groupOfURLs" );
1212                 if ( oc == NULL ) {
1213                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1214                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1215                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1216                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1217                                 c->log, c->cr_msg, 0 );
1218                         return 1;
1219                 }
1220
1221                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1222                 if ( rc != LDAP_SUCCESS ) {
1223                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1224                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1225                                 "unable to find AttributeDescription \"%s\"",
1226                                 c->argv[ 1 ] );
1227                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1228                                 c->log, c->cr_msg, 0 );
1229                         return 1;
1230                 }
1231
1232                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1233                 if ( rc != LDAP_SUCCESS ) {
1234                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1235                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1236                                 "unable to find AttributeDescription \"%s\"\n",
1237                                 c->argv[ 2 ] );
1238                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1239                                 c->log, c->cr_msg, 0 );
1240                         return 1;
1241                 }
1242
1243                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1244                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1245                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1246                                 "AttributeDescription \"%s\" "
1247                                 "must be a subtype of \"labeledURI\"",
1248                                 c->argv[ 2 ] );
1249                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1250                                 c->log, c->cr_msg, 0 );
1251                         return 1;
1252                 }
1253
1254                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1255                         *dlip; dlip = &(*dlip)->dli_next )
1256                 {
1257                         /* The same URL attribute / member attribute pair
1258                          * cannot be repeated */
1259                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1260                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1261                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1262                                         "URL attributeDescription \"%s\" already mapped.\n",
1263                                         ad->ad_cname.bv_val );
1264                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1265                                         c->log, c->cr_msg, 0 );
1266 #if 0
1267                                 /* make it a warning... */
1268                                 return 1;
1269 #endif
1270                         }
1271                 }
1272
1273                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1274
1275                 (*dlip)->dli_oc = oc;
1276                 (*dlip)->dli_ad = ad;
1277                 (*dlip)->dli_member_ad = member_ad;
1278
1279                 rc = dynlist_build_def_filter( *dlip );
1280
1281                 } break;
1282
1283         default:
1284                 rc = 1;
1285                 break;
1286         }
1287
1288         return rc;
1289 }
1290 #endif
1291
1292 static int
1293 dynlist_db_open(
1294         BackendDB       *be,
1295         ConfigReply     *cr )
1296 {
1297         slap_overinst           *on = (slap_overinst *) be->bd_info;
1298         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1299         ObjectClass             *oc = NULL;
1300         AttributeDescription    *ad = NULL;
1301         const char      *text;
1302         int rc;
1303
1304         if ( dli == NULL ) {
1305                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1306                 on->on_bi.bi_private = (void *)dli;
1307         }
1308
1309         for ( ; dli; dli = dli->dli_next ) {
1310                 if ( dli->dli_oc == NULL ) {
1311                         if ( oc == NULL ) {
1312                                 oc = oc_find( "groupOfURLs" );
1313                                 if ( oc == NULL ) {
1314                                         sprintf( cr->msg, "unable to fetch objectClass \"groupOfURLs\"" );
1315                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1316                                         return 1;
1317                                 }
1318                         }
1319
1320                         dli->dli_oc = oc;
1321                 }
1322
1323                 if ( dli->dli_ad == NULL ) {
1324                         if ( ad == NULL ) {
1325                                 rc = slap_str2ad( "memberURL", &ad, &text );
1326                                 if ( rc != LDAP_SUCCESS ) {
1327                                         sprintf( cr->msg, "unable to fetch attributeDescription \"memberURL\": %d (%s)",
1328                                                 rc, text );
1329                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1330                                         return 1;
1331                                 }
1332                         }
1333
1334                         dli->dli_ad = ad;
1335                 }
1336
1337                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1338                         rc = dynlist_build_def_filter( dli );
1339                         if ( rc != 0 ) {
1340                                 return rc;
1341                         }
1342                 }
1343         }
1344
1345         rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text );
1346         if ( rc != LDAP_SUCCESS ) {
1347                 snprintf( cr->msg, sizeof( cr->msg),
1348                         "unable to fetch attributeDescription \"dgIdentity\": %d (%s)",
1349                         rc, text );
1350                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1351                 /* Just a warning */
1352         }
1353
1354         return 0;
1355 }
1356
1357 static int
1358 dynlist_db_destroy(
1359         BackendDB       *be,
1360         ConfigReply     *cr )
1361 {
1362         slap_overinst   *on = (slap_overinst *) be->bd_info;
1363
1364         if ( on->on_bi.bi_private ) {
1365                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1366                                 *dli_next;
1367
1368                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1369                         dli_next = dli->dli_next;
1370
1371                         ch_free( dli->dli_default_filter.bv_val );
1372                         ch_free( dli );
1373                 }
1374         }
1375
1376         return 0;
1377 }
1378
1379 static slap_overinst    dynlist = { { NULL } };
1380 #ifdef TAKEOVER_DYNGROUP
1381 static char             *obsolete_names[] = {
1382         "dyngroup",
1383         NULL
1384 };
1385 #endif
1386
1387 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1388 static
1389 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1390 int
1391 dynlist_initialize(void)
1392 {
1393 #ifndef OL_2_2_COMPAT
1394         int     rc = 0;
1395 #endif
1396
1397         dynlist.on_bi.bi_type = "dynlist";
1398
1399 #ifdef TAKEOVER_DYNGROUP
1400         /* makes dynlist incompatible with dyngroup */
1401         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1402 #endif
1403
1404 #ifdef OL_2_2_COMPAT
1405         dynlist.on_bi.bi_db_config = dynlist_db_config;
1406 #else
1407         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1408 #endif
1409         dynlist.on_bi.bi_db_open = dynlist_db_open;
1410         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1411
1412         dynlist.on_response = dynlist_response;
1413
1414 #ifndef OL_2_2_COMPAT
1415         dynlist.on_bi.bi_cf_ocs = dlocs;
1416
1417         rc = config_register_schema( dlcfg, dlocs );
1418         if ( rc ) {
1419                 return rc;
1420         }
1421 #endif
1422
1423         return overlay_register( &dynlist );
1424 }
1425
1426 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1427 int
1428 init_module( int argc, char *argv[] )
1429 {
1430         return dynlist_initialize();
1431 }
1432 #endif
1433
1434 #endif /* SLAPD_OVER_DYNLIST */