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

   1 /* dynlist.c - dynamic list overlay */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2007 The OpenLDAP Foundation.
   6  * Portions Copyright 2004-2005 Pierangelo Masarati.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by Pierangelo Masarati
  19  * for SysNet s.n.c., for inclusion in OpenLDAP Software.
  20  */
  21
  22 #include "portable.h"
  23
  24 #ifdef SLAPD_OVER_DYNLIST
  25
  26 #if LDAP_VENDOR_VERSION_MINOR == X || LDAP_VENDOR_VERSION_MINOR > 3
  27 #if SLAPD_OVER_DYNGROUP != SLAPD_MOD_STATIC
  28 #define TAKEOVER_DYNGROUP
  29 #endif
  30 #else
  31 #if LDAP_VENDOR_VERSION_MINOR < 3
  32 #define OL_2_2_COMPAT
  33 #endif
  34 #endif
  35
  36 #include <stdio.h>
  37
  38 #include <ac/string.h>
  39
  40 #include "slap.h"
  41 #ifndef OL_2_2_COMPAT
  42 #include "config.h"
  43 #endif
  44 #include "lutil.h"
  45
  46 /* FIXME: the code differs if SLAP_OPATTRS is defined or not;
  47  * SLAP_OPATTRS is not defined in 2.2 yet, while this overlay
  48  * expects HEAD code at least later than August 6, 2004. */
  49 /* FIXME: slap_anlist_no_attrs was introduced in 2.3; here it
  50  * is anticipated to allow using this overlay with 2.2. */
  51
  52 #ifdef OL_2_2_COMPAT
  53 static AttributeName anlist_no_attrs[] = {
  54         { BER_BVC( LDAP_NO_ATTRS ), NULL, 0, NULL },
  55         { BER_BVNULL, NULL, 0, NULL }
  56 };
  57
  58 static AttributeName *slap_anlist_no_attrs = anlist_no_attrs;
  59 #endif
  60
  61 static AttributeDescription *ad_dgIdentity, *ad_dgAuthz;
  62
  63 typedef struct dynlist_info_t {
  64         ObjectClass             *dli_oc;
  65         AttributeDescription    *dli_ad;
  66         AttributeDescription    *dli_member_ad;
  67         struct berval           dli_default_filter;
  68         struct dynlist_info_t   *dli_next;
  69 } dynlist_info_t;
  70
  71 static dynlist_info_t *
  72 dynlist_is_dynlist_next( Operation *op, SlapReply *rs, dynlist_info_t *old_dli )
  73 {
  74         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
  75         dynlist_info_t  *dli;
  76
  77         Attribute       *a;
  78
  79         if ( old_dli == NULL ) {
  80                 dli = (dynlist_info_t *)on->on_bi.bi_private;
  81
  82         } else {
  83                 dli = old_dli->dli_next;
  84         }
  85
  86         a = attrs_find( rs->sr_entry->e_attrs, slap_schema.si_ad_objectClass );
  87         if ( a == NULL ) {
  88                 /* FIXME: objectClass must be present; for non-storage
  89                  * backends, like back-ldap, it needs to be added
  90                  * to the requested attributes */
  91                 return NULL;
  92         }
  93
  94         for ( ; dli; dli = dli->dli_next ) {
  95                 if ( value_find_ex( slap_schema.si_ad_objectClass,
  96                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  97                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  98                                 a->a_nvals, &dli->dli_oc->soc_cname,
  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
 193                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 194                                         &text, textbuf, sizeof( textbuf ) );
 195                 }
 196
 197                 goto done;
 198         }
 199
 200 #ifndef SLAP_OPATTRS
 201         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 202         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 203 #else /* SLAP_OPATTRS */
 204         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 205         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 206 #endif /* SLAP_OPATTRS */
 207
 208         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 209                 BerVarray       vals, nvals = NULL;
 210                 int             i, j,
 211                                 is_oc = a->a_desc == slap_schema.si_ad_objectClass;
 212
 213                 /* if attribute is not requested, skip it */
 214                 if ( rs->sr_attrs == NULL ) {
 215                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 216                                 continue;
 217                         }
 218
 219                 } else {
 220                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 221                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 222                                 {
 223                                         continue;
 224                                 }
 225
 226                         } else {
 227                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 228                                 {
 229                                         continue;
 230                                 }
 231                         }
 232                 }
 233
 234                 /* test access to attribute */
 235                 if ( op->ors_attrsonly ) {
 236                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 237                                                 ACL_READ, &acl_state ) )
 238                         {
 239                                 continue;
 240                         }
 241                 }
 242
 243                 /* single-value check: keep first only */
 244                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 245                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 246                                 continue;
 247                         }
 248                 }
 249
 250                 /* test access to attribute */
 251                 for ( i = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ )
 252                         /* just count */ ;
 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
 297                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 298                                         &text, textbuf, sizeof( textbuf ) );
 299                 }
 300
 301                 op->o_tmpfree( vals, op->o_tmpmemctx );
 302                 if ( nvals ) {
 303                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 304                 }
 305         }
 306
 307 done:;
 308         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 309                 entry_free( rs->sr_entry );
 310                 rs->sr_entry = NULL;
 311                 rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
 312         }
 313
 314         return 0;
 315 }
 316
 317 static int
 318 dynlist_prepare_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 319 {
 320         Attribute       *a, *id = NULL;
 321         slap_callback   cb;
 322         Operation       o = *op;
 323         SlapReply       r = { REP_SEARCH };
 324         struct berval   *url;
 325         Entry           *e;
 326         slap_mask_t     e_flags;
 327         int             opattrs,
 328                         userattrs;
 329         dynlist_sc_t    dlc = { 0 };
 330
 331         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 332         if ( a == NULL ) {
 333                 /* FIXME: error? */
 334                 return SLAP_CB_CONTINUE;
 335         }
 336
 337 #ifndef SLAP_OPATTRS
 338         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 339         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 340 #else /* SLAP_OPATTRS */
 341         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 342         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 343 #endif /* SLAP_OPATTRS */
 344
 345         /* Don't generate member list if it wasn't requested */
 346         if ( dli->dli_member_ad && !userattrs && !ad_inlist( dli->dli_member_ad, rs->sr_attrs ) ) {
 347                 return SLAP_CB_CONTINUE;
 348         }
 349
 350         if ( ad_dgIdentity && ( id = attrs_find( rs->sr_entry->e_attrs, ad_dgIdentity ))) {
 351                 Attribute *authz = NULL;
 352
 353                 /* if not rootdn and dgAuthz is present,
 354                  * check if user can be authorized as dgIdentity */
 355                 if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 356                         && ( authz = attrs_find( rs->sr_entry->e_attrs, ad_dgAuthz ) ) )
 357                 {
 358                         if ( slap_sasl_matches( op, authz->a_nvals,
 359                                 &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 360                         {
 361                                 return SLAP_CB_CONTINUE;
 362                         }
 363                 }
 364
 365                 o.o_dn = id->a_vals[0];
 366                 o.o_ndn = id->a_nvals[0];
 367                 o.o_groups = NULL;
 368         }
 369
 370         if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
 371                 e = entry_dup( rs->sr_entry );
 372         } else {
 373                 e = rs->sr_entry;
 374         }
 375         e_flags = rs->sr_flags | ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 376
 377         dlc.dlc_e = e;
 378         dlc.dlc_dli = dli;
 379         cb.sc_private = &dlc;
 380         cb.sc_response = dynlist_sc_update;
 381         cb.sc_cleanup = NULL;
 382         cb.sc_next = NULL;
 383
 384         o.o_callback = &cb;
 385         o.ors_deref = LDAP_DEREF_NEVER;
 386         o.ors_limit = NULL;
 387         o.ors_tlimit = SLAP_NO_LIMIT;
 388         o.ors_slimit = SLAP_NO_LIMIT;
 389
 390         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 391                 LDAPURLDesc     *lud = NULL;
 392                 int             i, j;
 393                 struct berval   dn;
 394                 int             rc;
 395
 396                 BER_BVZERO( &o.o_req_dn );
 397                 BER_BVZERO( &o.o_req_ndn );
 398                 o.ors_filter = NULL;
 399                 o.ors_attrs = NULL;
 400                 BER_BVZERO( &o.ors_filterstr );
 401
 402                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 403                         /* FIXME: error? */
 404                         continue;
 405                 }
 406
 407                 if ( lud->lud_host != NULL ) {
 408                         /* FIXME: host not allowed; reject as illegal? */
 409                         Debug( LDAP_DEBUG_ANY, "dynlist_prepare_entry(\"%s\"): "
 410                                 "illegal URI \"%s\"\n",
 411                                 e->e_name.bv_val, url->bv_val, 0 );
 412                         goto cleanup;
 413                 }
 414
 415                 if ( lud->lud_dn == NULL ) {
 416                         /* note that an empty base is not honored in terms
 417                          * of defaultSearchBase, because select_backend()
 418                          * is not aware of the defaultSearchBase option;
 419                          * this can be useful in case of a database serving
 420                          * the empty suffix */
 421                         BER_BVSTR( &dn, "" );
 422
 423                 } else {
 424                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 425                 }
 426                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 427                 if ( rc != LDAP_SUCCESS ) {
 428                         /* FIXME: error? */
 429                         goto cleanup;
 430                 }
 431                 o.ors_scope = lud->lud_scope;
 432
 433                 if ( dli->dli_member_ad != NULL ) {
 434                         /* if ( lud->lud_attrs != NULL ),
 435                          * the URL should be ignored */
 436                         o.ors_attrs = slap_anlist_no_attrs;
 437
 438                 } else if ( lud->lud_attrs == NULL ) {
 439                         o.ors_attrs = rs->sr_attrs;
 440
 441                 } else {
 442                         for ( i = 0; lud->lud_attrs[i]; i++)
 443                                 /* just count */ ;
 444
 445                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 446                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 447                                 const char      *text = NULL;
 448
 449                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 450                                 o.ors_attrs[j].an_desc = NULL;
 451                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 452                                 /* FIXME: ignore errors... */
 453
 454                                 if ( rs->sr_attrs == NULL ) {
 455                                         if ( o.ors_attrs[j].an_desc != NULL &&
 456                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 457                                         {
 458                                                 continue;
 459                                         }
 460
 461                                 } else {
 462                                         if ( o.ors_attrs[j].an_desc != NULL &&
 463                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 464                                         {
 465                                                 if ( !opattrs && !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 466                                                 {
 467                                                         continue;
 468                                                 }
 469
 470                                         } else {
 471                                                 if ( !userattrs &&
 472                                                                 o.ors_attrs[j].an_desc != NULL &&
 473                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 474                                                 {
 475                                                         continue;
 476                                                 }
 477                                         }
 478                                 }
 479
 480                                 j++;
 481                         }
 482
 483                         if ( j == 0 ) {
 484                                 goto cleanup;
 485                         }
 486
 487                         BER_BVZERO( &o.ors_attrs[j].an_name );
 488                 }
 489
 490                 if ( lud->lud_filter == NULL ) {
 491                         ber_dupbv_x( &o.ors_filterstr,
 492                                         &dli->dli_default_filter, op->o_tmpmemctx );
 493
 494                 } else {
 495                         struct berval   flt;
 496                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 497                         if ( dynlist_make_filter( op, &flt, &o.ors_filterstr ) ) {
 498                                 /* error */
 499                                 goto cleanup;
 500                         }
 501                 }
 502                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 503                 if ( o.ors_filter == NULL ) {
 504                         goto cleanup;
 505                 }
 506
 507                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 508                 if ( o.o_bd && o.o_bd->be_search ) {
 509 #ifdef SLAP_OPATTRS
 510                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 511 #endif /* SLAP_OPATTRS */
 512                         (void)o.o_bd->be_search( &o, &r );
 513                 }
 514
 515 cleanup:;
 516                 if ( id ) {
 517                         slap_op_groups_free( &o );
 518                 }
 519                 if ( o.ors_filter ) {
 520                         filter_free_x( &o, o.ors_filter );
 521                 }
 522                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 523                                 && o.ors_attrs != slap_anlist_no_attrs )
 524                 {
 525                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 526                 }
 527                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 528                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 529                 }
 530                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 531                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 532                 }
 533                 assert( BER_BVISNULL( &o.ors_filterstr )
 534                         || o.ors_filterstr.bv_val != lud->lud_filter );
 535                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 536                 ldap_free_urldesc( lud );
 537         }
 538
 539         rs->sr_entry = e;
 540         rs->sr_flags = e_flags;
 541
 542         return SLAP_CB_CONTINUE;
 543 }
 544
 545 static int
 546 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 547 {
 548         /* save the entry in the private field of the callback,
 549          * so it doesn't get freed (it's temporary!) */
 550         if ( rs->sr_entry != NULL ) {
 551                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 552                 dlc->dlc_e = rs->sr_entry;
 553                 rs->sr_entry = NULL;
 554         }
 555
 556         return 0;
 557 }
 558
 559 static int
 560 dynlist_compare( Operation *op, SlapReply *rs )
 561 {
 562         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 563         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 564         Operation o = *op;
 565         Entry *e = NULL;
 566
 567         for ( ; dli != NULL; dli = dli->dli_next ) {
 568                 if ( op->oq_compare.rs_ava->aa_desc == dli->dli_member_ad ) {
 569                         /* This compare is for one of the attributes we're
 570                          * interested in. We'll use slapd's existing dyngroup
 571                          * evaluator to get the answer we want.
 572                          */
 573                         BerVarray id = NULL, authz = NULL;
 574
 575                         o.o_do_not_cache = 1;
 576
 577                         if ( ad_dgIdentity && backend_attribute( &o, NULL, &o.o_req_ndn,
 578                                 ad_dgIdentity, &id, ACL_READ ) == LDAP_SUCCESS )
 579                         {
 580                                 /* if not rootdn and dgAuthz is present,
 581                                  * check if user can be authorized as dgIdentity */
 582                                 if ( ad_dgAuthz && !BER_BVISEMPTY( id ) && !be_isroot( op )
 583                                         && backend_attribute( &o, NULL, &o.o_req_ndn,
 584                                                 ad_dgAuthz, &authz, ACL_READ ) == LDAP_SUCCESS )
 585                                 {
 586
 587                                         rs->sr_err = slap_sasl_matches( op, authz,
 588                                                 &o.o_ndn, &o.o_ndn );
 589                                         ber_bvarray_free_x( authz, op->o_tmpmemctx );
 590                                         if ( rs->sr_err != LDAP_SUCCESS ) {
 591                                                 goto done;
 592                                         }
 593                                 }
 594
 595                                 o.o_dn = *id;
 596                                 o.o_ndn = *id;
 597                                 o.o_groups = NULL; /* authz changed, invalidate cached groups */
 598                         }
 599
 600                         rs->sr_err = backend_group( &o, NULL, &o.o_req_ndn,
 601                                 &o.oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 602                         switch ( rs->sr_err ) {
 603                         case LDAP_SUCCESS:
 604                                 rs->sr_err = LDAP_COMPARE_TRUE;
 605                                 break;
 606
 607                         case LDAP_NO_SUCH_OBJECT:
 608                                 /* NOTE: backend_group() returns noSuchObject
 609                                  * if op_ndn does not exist; however, since
 610                                  * dynamic list expansion means that the
 611                                  * member attribute is virtually present, the
 612                                  * non-existence of the asserted value implies
 613                                  * the assertion is FALSE rather than
 614                                  * UNDEFINED */
 615                                 rs->sr_err = LDAP_COMPARE_FALSE;
 616                                 break;
 617                         }
 618
 619 done:;
 620                         if ( id ) ber_bvarray_free_x( id, o.o_tmpmemctx );
 621
 622                         return SLAP_CB_CONTINUE;
 623                 }
 624         }
 625
 626         if ( overlay_entry_get_ov( &o, &o.o_req_ndn, NULL, NULL, 0, &e, on ) !=
 627                 LDAP_SUCCESS || e == NULL )
 628         {
 629                 return SLAP_CB_CONTINUE;
 630         }
 631
 632         if ( ad_dgIdentity ) {
 633                 Attribute *id = attrs_find( e->e_attrs, ad_dgIdentity );
 634                 if ( id ) {
 635                         Attribute *authz;
 636
 637                         /* if not rootdn and dgAuthz is present,
 638                          * check if user can be authorized as dgIdentity */
 639                         if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 640                                 && ( authz = attrs_find( e->e_attrs, ad_dgAuthz ) ) )
 641                         {
 642                                 if ( slap_sasl_matches( op, authz->a_nvals,
 643                                         &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 644                                 {
 645                                         goto release;
 646                                 }
 647                         }
 648
 649                         o.o_dn = id->a_vals[0];
 650                         o.o_ndn = id->a_nvals[0];
 651                         o.o_groups = NULL;
 652                 }
 653         }
 654
 655         dli = (dynlist_info_t *)on->on_bi.bi_private;
 656         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 657                 Attribute       *a;
 658                 slap_callback   cb;
 659                 SlapReply       r = { REP_SEARCH };
 660                 AttributeName   an[2];
 661                 int             rc;
 662                 dynlist_sc_t    dlc = { 0 };
 663
 664                 if ( !is_entry_objectclass_or_sub( e, dli->dli_oc ))
 665                         continue;
 666
 667                 /* if the entry has the right objectClass, generate
 668                  * the dynamic list and compare */
 669                 dlc.dlc_dli = dli;
 670                 cb.sc_private = &dlc;
 671                 cb.sc_response = dynlist_sc_save_entry;
 672                 cb.sc_cleanup = NULL;
 673                 cb.sc_next = NULL;
 674                 o.o_callback = &cb;
 675
 676                 o.o_tag = LDAP_REQ_SEARCH;
 677                 o.ors_limit = NULL;
 678                 o.ors_tlimit = SLAP_NO_LIMIT;
 679                 o.ors_slimit = SLAP_NO_LIMIT;
 680
 681                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 682                 if ( !o.o_bd || !o.o_bd->be_search ) {
 683                         goto release;
 684                 }
 685
 686                 BER_BVSTR( &o.ors_filterstr, "(objectClass=*)" );
 687                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 688                 if ( o.ors_filter == NULL ) {
 689                         /* FIXME: error? */
 690                         goto release;
 691                 }
 692
 693                 o.ors_scope = LDAP_SCOPE_BASE;
 694                 o.ors_deref = LDAP_DEREF_NEVER;
 695                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 696                 an[0].an_desc = op->orc_ava->aa_desc;
 697                 BER_BVZERO( &an[1].an_name );
 698                 o.ors_attrs = an;
 699                 o.ors_attrsonly = 0;
 700
 701                 o.o_acl_priv = ACL_COMPARE;
 702
 703                 rc = o.o_bd->be_search( &o, &r );
 704                 filter_free_x( &o, o.ors_filter );
 705
 706                 if ( o.o_dn.bv_val != op->o_dn.bv_val ) {
 707                         slap_op_groups_free( &o );
 708                 }
 709
 710                 if ( rc != 0 ) {
 711                         goto release;
 712                 }
 713
 714                 if ( dlc.dlc_e != NULL ) {
 715                         r.sr_entry = dlc.dlc_e;
 716                 }
 717
 718                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 719                         /* error? */
 720                         goto release;
 721                 }
 722
 723                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 724                         a != NULL;
 725                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 726                 {
 727                         /* if we're here, we got a match... */
 728                         rs->sr_err = LDAP_COMPARE_FALSE;
 729
 730                         if ( value_find_ex( op->orc_ava->aa_desc,
 731                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 732                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 733                                 a->a_nvals, &op->orc_ava->aa_value, op->o_tmpmemctx ) == 0 )
 734                         {
 735                                 rs->sr_err = LDAP_COMPARE_TRUE;
 736                                 break;
 737                         }
 738                 }
 739
 740                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 741                         entry_free( r.sr_entry );
 742                 }
 743         }
 744
 745 release:;
 746         if ( e != NULL ) {
 747                 overlay_entry_release_ov( &o, e, 0, on );
 748         }
 749
 750         return SLAP_CB_CONTINUE;
 751 }
 752
 753 static int
 754 dynlist_response( Operation *op, SlapReply *rs )
 755 {
 756         dynlist_info_t  *dli;
 757
 758         switch ( op->o_tag ) {
 759         case LDAP_REQ_SEARCH:
 760                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 761                 {
 762                         int     rc = LDAP_OTHER;
 763
 764                         for ( dli = dynlist_is_dynlist_next( op, rs, NULL );
 765                                 dli;
 766                                 dli = dynlist_is_dynlist_next( op, rs, dli ) )
 767                         {
 768                                 rc = dynlist_prepare_entry( op, rs, dli );
 769                         }
 770
 771                         if ( rc != LDAP_OTHER ) {
 772                                 return rc;
 773                         }
 774                 }
 775                 break;
 776
 777         case LDAP_REQ_COMPARE:
 778                 switch ( rs->sr_err ) {
 779                 /* NOTE: we waste a few cycles running the dynamic list
 780                  * also when the result is FALSE, which occurs if the
 781                  * dynamic entry itself contains the AVA attribute  */
 782                 /* FIXME: this approach is less than optimal; a dedicated
 783                  * compare op should be implemented, that fetches the
 784                  * entry, checks if it has the appropriate objectClass
 785                  * and, in case, runs a compare thru all the URIs,
 786                  * stopping at the first positive occurrence; see ITS#3756 */
 787                 case LDAP_COMPARE_FALSE:
 788                 case LDAP_NO_SUCH_ATTRIBUTE:
 789                         return dynlist_compare( op, rs );
 790                 }
 791                 break;
 792
 793         default:
 794                 break;
 795         }
 796
 797         return SLAP_CB_CONTINUE;
 798 }
 799
 800 static int
 801 dynlist_build_def_filter( dynlist_info_t *dli )
 802 {
 803         char    *ptr;
 804
 805         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 806                 + dli->dli_oc->soc_cname.bv_len;
 807         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 808         if ( dli->dli_default_filter.bv_val == NULL ) {
 809                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 810                         0, 0, 0 );
 811                 return -1;
 812         }
 813
 814         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 815         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 816         ptr = lutil_strcopy( ptr, "))" );
 817
 818         assert( dli->dli_default_filter.bv_len == ptr - dli->dli_default_filter.bv_val );
 819
 820         return 0;
 821 }
 822
 823 #ifdef OL_2_2_COMPAT
 824 static int
 825 dynlist_db_config(
 826         BackendDB       *be,
 827         const char      *fname,
 828         int             lineno,
 829         int             argc,
 830         char            **argv )
 831 {
 832         slap_overinst   *on = (slap_overinst *)be->bd_info;
 833
 834         int             rc = 0;
 835
 836         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 837                 dynlist_info_t          **dlip;
 838                 ObjectClass             *oc;
 839                 AttributeDescription    *ad = NULL,
 840                                         *member_ad = NULL;
 841                 const char              *text;
 842
 843                 if ( argc < 3 || argc > 4 ) {
 844                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 845                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 846                                 "invalid arg number #%d.\n",
 847                                 fname, lineno, argc );
 848                         return 1;
 849                 }
 850
 851                 oc = oc_find( argv[1] );
 852                 if ( oc == NULL ) {
 853                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 854                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 855                                 "unable to find ObjectClass \"%s\"\n",
 856                                 fname, lineno, argv[ 1 ] );
 857                         return 1;
 858                 }
 859
 860                 rc = slap_str2ad( argv[2], &ad, &text );
 861                 if ( rc != LDAP_SUCCESS ) {
 862                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 863                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 864                                 "unable to find AttributeDescription \"%s\"\n",
 865                                 fname, lineno, argv[2] );
 866                         return 1;
 867                 }
 868
 869                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 870                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 871                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 872                                 "AttributeDescription \"%s\" "
 873                                 "must be a subtype of \"labeledURI\"\n",
 874                                 fname, lineno, argv[2] );
 875                         return 1;
 876                 }
 877
 878                 if ( argc == 4 ) {
 879                         rc = slap_str2ad( argv[3], &member_ad, &text );
 880                         if ( rc != LDAP_SUCCESS ) {
 881                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 882                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 883                                         "unable to find AttributeDescription \"%s\"\n",
 884                                         fname, lineno, argv[3] );
 885                                 return 1;
 886                         }
 887                 }
 888
 889                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 890                         *dlip; dlip = &(*dlip)->dli_next )
 891                 {
 892                         /* The same URL attribute / member attribute pair
 893                          * cannot be repeated */
 894                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 895                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 896                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 897                                         "URL attributeDescription \"%s\" already mapped.\n",
 898                                         fname, lineno, ad->ad_cname.bv_val );
 899 #if 0
 900                                 /* make it a warning... */
 901                                 return 1;
 902 #endif
 903                         }
 904                 }
 905
 906                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 907                 (*dlip)->dli_oc = oc;
 908                 (*dlip)->dli_ad = ad;
 909                 (*dlip)->dli_member_ad = member_ad;
 910
 911                 if ( dynlist_build_def_filter( *dlip ) ) {
 912                         ch_free( *dlip );
 913                         *dlip = NULL;
 914                         return 1;
 915                 }
 916
 917         /* allow dyngroup syntax */
 918         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
 919                 dynlist_info_t          **dlip;
 920                 ObjectClass             *oc;
 921                 AttributeDescription    *ad = NULL,
 922                                         *member_ad = NULL;
 923                 const char              *text;
 924
 925                 if ( argc != 3 ) {
 926                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 927                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 928                                 "invalid arg number #%d.\n",
 929                                 fname, lineno, argc );
 930                         return 1;
 931                 }
 932
 933                 oc = oc_find( "groupOfURLs" );
 934                 if ( oc == NULL ) {
 935                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 936                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 937                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
 938                                 fname, lineno, 0 );
 939                         return 1;
 940                 }
 941
 942                 rc = slap_str2ad( argv[1], &member_ad, &text );
 943                 if ( rc != LDAP_SUCCESS ) {
 944                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 945                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 946                                 "unable to find AttributeDescription \"%s\"\n",
 947                                 fname, lineno, argv[1] );
 948                         return 1;
 949                 }
 950
 951                 rc = slap_str2ad( argv[2], &ad, &text );
 952                 if ( rc != LDAP_SUCCESS ) {
 953                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 954                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 955                                 "unable to find AttributeDescription \"%s\"\n",
 956                                 fname, lineno, argv[2] );
 957                         return 1;
 958                 }
 959
 960                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 961                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 962                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 963                                 "AttributeDescription \"%s\" "
 964                                 "must be a subtype of \"labeledURI\"\n",
 965                                 fname, lineno, argv[2] );
 966                         return 1;
 967                 }
 968
 969                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 970                         *dlip; dlip = &(*dlip)->dli_next )
 971                 {
 972                         /* The same URL attribute / member attribute pair
 973                          * cannot be repeated */
 974                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 975                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 976                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 977                                         "URL attributeDescription \"%s\" already mapped.\n",
 978                                         fname, lineno, ad->ad_cname.bv_val );
 979 #if 0
 980                                 /* make it a warning... */
 981                                 return 1;
 982 #endif
 983                         }
 984                 }
 985
 986                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 987                 (*dlip)->dli_oc = oc;
 988                 (*dlip)->dli_ad = ad;
 989                 (*dlip)->dli_member_ad = member_ad;
 990
 991                 if ( dynlist_build_def_filter( *dlip ) ) {
 992                         ch_free( *dlip );
 993                         *dlip = NULL;
 994                         return 1;
 995                 }
 996
 997         } else {
 998                 rc = SLAP_CONF_UNKNOWN;
 999         }
1000
1001         return rc;
1002 }
1003
1004 #else
1005 enum {
1006         DL_ATTRSET = 1,
1007         DL_ATTRPAIR,
1008         DL_ATTRPAIR_COMPAT,
1009         DL_LAST
1010 };
1011
1012 static ConfigDriver     dl_cfgen;
1013
1014 static ConfigTable dlcfg[] = {
1015         { "dynlist-attrset", "group-oc> <URL-ad> <member-ad",
1016                 3, 4, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
1017                 "( OLcfgOvAt:8.1 NAME 'olcDLattrSet' "
1018                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
1019                         "EQUALITY caseIgnoreMatch "
1020                         "SYNTAX OMsDirectoryString "
1021                         "X-ORDERED 'VALUES' )",
1022                         NULL, NULL },
1023         { "dynlist-attrpair", "member-ad> <URL-ad",
1024                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
1025                         NULL, NULL, NULL },
1026 #ifdef TAKEOVER_DYNGROUP
1027         { "attrpair", "member-ad> <URL-ad",
1028                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
1029                         NULL, NULL, NULL },
1030 #endif
1031         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1032 };
1033
1034 static ConfigOCs dlocs[] = {
1035         { "( OLcfgOvOc:8.1 "
1036                 "NAME 'olcDynamicList' "
1037                 "DESC 'Dynamic list configuration' "
1038                 "SUP olcOverlayConfig "
1039                 "MAY olcDLattrSet )",
1040                 Cft_Overlay, dlcfg, NULL, NULL },
1041         { NULL, 0, NULL }
1042 };
1043
1044 static int
1045 dl_cfgen( ConfigArgs *c )
1046 {
1047         slap_overinst   *on = (slap_overinst *)c->bi;
1048         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
1049
1050         int             rc = 0, i;
1051
1052         if ( c->op == SLAP_CONFIG_EMIT ) {
1053                 switch( c->type ) {
1054                 case DL_ATTRSET:
1055                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
1056                                 struct berval   bv;
1057                                 char            *ptr = c->cr_msg;
1058
1059                                 assert( dli->dli_oc != NULL );
1060                                 assert( dli->dli_ad != NULL );
1061
1062                                 ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ),
1063                                         SLAP_X_ORDERED_FMT "%s %s", i,
1064                                         dli->dli_oc->soc_cname.bv_val,
1065                                         dli->dli_ad->ad_cname.bv_val );
1066
1067                                 if ( dli->dli_member_ad != NULL ) {
1068                                         ptr[ 0 ] = ' ';
1069                                         ptr++;
1070                                         ptr = lutil_strcopy( ptr, dli->dli_member_ad->ad_cname.bv_val );
1071                                 }
1072
1073                                 bv.bv_val = c->cr_msg;
1074                                 bv.bv_len = ptr - bv.bv_val;
1075                                 value_add_one( &c->rvalue_vals, &bv );
1076                         }
1077                         break;
1078
1079                 case DL_ATTRPAIR_COMPAT:
1080                 case DL_ATTRPAIR:
1081                         rc = 1;
1082                         break;
1083
1084                 default:
1085                         rc = 1;
1086                         break;
1087                 }
1088
1089                 return rc;
1090
1091         } else if ( c->op == LDAP_MOD_DELETE ) {
1092                 switch( c->type ) {
1093                 case DL_ATTRSET:
1094                         if ( c->valx < 0 ) {
1095                                 dynlist_info_t  *dli_next;
1096
1097                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1098                                         dli_next = dli->dli_next;
1099
1100                                         ch_free( dli->dli_default_filter.bv_val );
1101                                         ch_free( dli );
1102                                 }
1103
1104                                 on->on_bi.bi_private = NULL;
1105
1106                         } else {
1107                                 dynlist_info_t  **dlip;
1108
1109                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1110                                         i < c->valx; i++ )
1111                                 {
1112                                         if ( *dlip == NULL ) {
1113                                                 return 1;
1114                                         }
1115                                         dlip = &(*dlip)->dli_next;
1116                                 }
1117
1118                                 dli = *dlip;
1119                                 *dlip = dli->dli_next;
1120                                 ch_free( dli->dli_default_filter.bv_val );
1121                                 ch_free( dli );
1122
1123                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1124                         }
1125                         break;
1126
1127                 case DL_ATTRPAIR_COMPAT:
1128                 case DL_ATTRPAIR:
1129                         rc = 1;
1130                         break;
1131
1132                 default:
1133                         rc = 1;
1134                         break;
1135                 }
1136
1137                 return rc;
1138         }
1139
1140         switch( c->type ) {
1141         case DL_ATTRSET: {
1142                 dynlist_info_t          **dlip,
1143                                         *dli_next = NULL;
1144                 ObjectClass             *oc = NULL;
1145                 AttributeDescription    *ad = NULL,
1146                                         *member_ad = NULL;
1147                 const char              *text;
1148
1149                 oc = oc_find( c->argv[ 1 ] );
1150                 if ( oc == NULL ) {
1151                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1152                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1153                                 "unable to find ObjectClass \"%s\"",
1154                                 c->argv[ 1 ] );
1155                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1156                                 c->log, c->cr_msg, 0 );
1157                         return 1;
1158                 }
1159
1160                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1161                 if ( rc != LDAP_SUCCESS ) {
1162                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1163                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1164                                 "unable to find AttributeDescription \"%s\"",
1165                                 c->argv[ 2 ] );
1166                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1167                                 c->log, c->cr_msg, 0 );
1168                         return 1;
1169                 }
1170
1171                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1172                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1173                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1174                                 "AttributeDescription \"%s\" "
1175                                 "must be a subtype of \"labeledURI\"",
1176                                 c->argv[ 2 ] );
1177                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1178                                 c->log, c->cr_msg, 0 );
1179                         return 1;
1180                 }
1181
1182                 if ( c->argc == 4 ) {
1183                         rc = slap_str2ad( c->argv[ 3 ], &member_ad, &text );
1184                         if ( rc != LDAP_SUCCESS ) {
1185                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1186                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1187                                         "unable to find AttributeDescription \"%s\"\n",
1188                                         c->argv[ 3 ] );
1189                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1190                                         c->log, c->cr_msg, 0 );
1191                                 return 1;
1192                         }
1193                 }
1194
1195                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1196                         *dlip; dlip = &(*dlip)->dli_next )
1197                 {
1198                         /* The same URL attribute / member attribute pair
1199                          * cannot be repeated */
1200                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1201                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1202                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1203                                         "URL attributeDescription \"%s\" already mapped.\n",
1204                                         ad->ad_cname.bv_val );
1205                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1206                                         c->log, c->cr_msg, 0 );
1207 #if 0
1208                                 /* make it a warning... */
1209                                 return 1;
1210 #endif
1211                         }
1212                 }
1213
1214                 if ( c->valx > 0 ) {
1215                         int     i;
1216
1217                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1218                                 i < c->valx; i++ )
1219                         {
1220                                 if ( *dlip == NULL ) {
1221                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1222                                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1223                                                 "invalid index {%d}\n",
1224                                                 c->valx );
1225                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1226                                                 c->log, c->cr_msg, 0 );
1227                                         return 1;
1228                                 }
1229                                 dlip = &(*dlip)->dli_next;
1230                         }
1231                         dli_next = *dlip;
1232
1233                 } else {
1234                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1235                                 *dlip; dlip = &(*dlip)->dli_next )
1236                                 /* goto last */;
1237                 }
1238
1239                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1240
1241                 (*dlip)->dli_oc = oc;
1242                 (*dlip)->dli_ad = ad;
1243                 (*dlip)->dli_member_ad = member_ad;
1244                 (*dlip)->dli_next = dli_next;
1245
1246                 rc = dynlist_build_def_filter( *dlip );
1247
1248                 } break;
1249
1250         case DL_ATTRPAIR_COMPAT:
1251                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1252                         "warning: \"attrpair\" only supported for limited "
1253                         "backward compatibility with overlay \"dyngroup\"" );
1254                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
1255                 /* fallthru */
1256
1257         case DL_ATTRPAIR: {
1258                 dynlist_info_t          **dlip;
1259                 ObjectClass             *oc = NULL;
1260                 AttributeDescription    *ad = NULL,
1261                                         *member_ad = NULL;
1262                 const char              *text;
1263
1264                 oc = oc_find( "groupOfURLs" );
1265                 if ( oc == NULL ) {
1266                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1267                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1268                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1269                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1270                                 c->log, c->cr_msg, 0 );
1271                         return 1;
1272                 }
1273
1274                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1275                 if ( rc != LDAP_SUCCESS ) {
1276                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1277                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1278                                 "unable to find AttributeDescription \"%s\"",
1279                                 c->argv[ 1 ] );
1280                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1281                                 c->log, c->cr_msg, 0 );
1282                         return 1;
1283                 }
1284
1285                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1286                 if ( rc != LDAP_SUCCESS ) {
1287                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1288                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1289                                 "unable to find AttributeDescription \"%s\"\n",
1290                                 c->argv[ 2 ] );
1291                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1292                                 c->log, c->cr_msg, 0 );
1293                         return 1;
1294                 }
1295
1296                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1297                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1298                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1299                                 "AttributeDescription \"%s\" "
1300                                 "must be a subtype of \"labeledURI\"",
1301                                 c->argv[ 2 ] );
1302                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1303                                 c->log, c->cr_msg, 0 );
1304                         return 1;
1305                 }
1306
1307                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1308                         *dlip; dlip = &(*dlip)->dli_next )
1309                 {
1310                         /* The same URL attribute / member attribute pair
1311                          * cannot be repeated */
1312                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1313                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1314                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1315                                         "URL attributeDescription \"%s\" already mapped.\n",
1316                                         ad->ad_cname.bv_val );
1317                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1318                                         c->log, c->cr_msg, 0 );
1319 #if 0
1320                                 /* make it a warning... */
1321                                 return 1;
1322 #endif
1323                         }
1324                 }
1325
1326                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1327
1328                 (*dlip)->dli_oc = oc;
1329                 (*dlip)->dli_ad = ad;
1330                 (*dlip)->dli_member_ad = member_ad;
1331
1332                 rc = dynlist_build_def_filter( *dlip );
1333
1334                 } break;
1335
1336         default:
1337                 rc = 1;
1338                 break;
1339         }
1340
1341         return rc;
1342 }
1343 #endif
1344
1345 static int
1346 dynlist_db_open(
1347         BackendDB       *be,
1348         ConfigReply     *cr )
1349 {
1350         slap_overinst           *on = (slap_overinst *) be->bd_info;
1351         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1352         ObjectClass             *oc = NULL;
1353         AttributeDescription    *ad = NULL;
1354         const char      *text;
1355         int rc;
1356
1357         if ( dli == NULL ) {
1358                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1359                 on->on_bi.bi_private = (void *)dli;
1360         }
1361
1362         for ( ; dli; dli = dli->dli_next ) {
1363                 if ( dli->dli_oc == NULL ) {
1364                         if ( oc == NULL ) {
1365                                 oc = oc_find( "groupOfURLs" );
1366                                 if ( oc == NULL ) {
1367                                         sprintf( cr->msg, "unable to fetch objectClass \"groupOfURLs\"" );
1368                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1369                                         return 1;
1370                                 }
1371                         }
1372
1373                         dli->dli_oc = oc;
1374                 }
1375
1376                 if ( dli->dli_ad == NULL ) {
1377                         if ( ad == NULL ) {
1378                                 rc = slap_str2ad( "memberURL", &ad, &text );
1379                                 if ( rc != LDAP_SUCCESS ) {
1380                                         sprintf( cr->msg, "unable to fetch attributeDescription \"memberURL\": %d (%s)",
1381                                                 rc, text );
1382                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1383                                         return 1;
1384                                 }
1385                         }
1386
1387                         dli->dli_ad = ad;
1388                 }
1389
1390                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1391                         rc = dynlist_build_def_filter( dli );
1392                         if ( rc != 0 ) {
1393                                 return rc;
1394                         }
1395                 }
1396         }
1397
1398         rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text );
1399         if ( rc != LDAP_SUCCESS ) {
1400                 snprintf( cr->msg, sizeof( cr->msg),
1401                         "unable to fetch attributeDescription \"dgIdentity\": %d (%s)",
1402                         rc, text );
1403                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1404                 /* Just a warning */
1405         }
1406
1407         rc = slap_str2ad( "dgAuthz", &ad_dgAuthz, &text );
1408         if ( rc != LDAP_SUCCESS ) {
1409                 snprintf( cr->msg, sizeof( cr->msg),
1410                         "unable to fetch attributeDescription \"dgAuthz\": %d (%s)",
1411                         rc, text );
1412                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1413                 /* Just a warning */
1414         }
1415
1416         return 0;
1417 }
1418
1419 static int
1420 dynlist_db_destroy(
1421         BackendDB       *be,
1422         ConfigReply     *cr )
1423 {
1424         slap_overinst   *on = (slap_overinst *) be->bd_info;
1425
1426         if ( on->on_bi.bi_private ) {
1427                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1428                                 *dli_next;
1429
1430                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1431                         dli_next = dli->dli_next;
1432
1433                         ch_free( dli->dli_default_filter.bv_val );
1434                         ch_free( dli );
1435                 }
1436         }
1437
1438         return 0;
1439 }
1440
1441 static slap_overinst    dynlist = { { NULL } };
1442 #ifdef TAKEOVER_DYNGROUP
1443 static char             *obsolete_names[] = {
1444         "dyngroup",
1445         NULL
1446 };
1447 #endif
1448
1449 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1450 static
1451 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1452 int
1453 dynlist_initialize(void)
1454 {
1455 #ifndef OL_2_2_COMPAT
1456         int     rc = 0;
1457 #endif
1458
1459         dynlist.on_bi.bi_type = "dynlist";
1460
1461 #ifdef TAKEOVER_DYNGROUP
1462         /* makes dynlist incompatible with dyngroup */
1463         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1464 #endif
1465
1466 #ifdef OL_2_2_COMPAT
1467         dynlist.on_bi.bi_db_config = dynlist_db_config;
1468 #else
1469         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1470 #endif
1471         dynlist.on_bi.bi_db_open = dynlist_db_open;
1472         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1473
1474         dynlist.on_response = dynlist_response;
1475
1476 #ifndef OL_2_2_COMPAT
1477         dynlist.on_bi.bi_cf_ocs = dlocs;
1478
1479         rc = config_register_schema( dlcfg, dlocs );
1480         if ( rc ) {
1481                 return rc;
1482         }
1483 #endif
1484
1485         return overlay_register( &dynlist );
1486 }
1487
1488 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1489 int
1490 init_module( int argc, char *argv[] )
1491 {
1492         return dynlist_initialize();
1493 }
1494 #endif
1495
1496 #endif /* SLAPD_OVER_DYNLIST */