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 ( 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 ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
 351                 e = entry_dup( rs->sr_entry );
 352         } else {
 353                 e = rs->sr_entry;
 354         }
 355         e_flags = rs->sr_flags | ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 356
 357         if ( ad_dgIdentity && ( id = attrs_find( e->e_attrs, ad_dgIdentity ))) {
 358                 o.o_dn = id->a_vals[0];
 359                 o.o_ndn = id->a_nvals[0];
 360                 o.o_groups = NULL;
 361         }
 362
 363         dlc.dlc_e = e;
 364         dlc.dlc_dli = dli;
 365         cb.sc_private = &dlc;
 366         cb.sc_response = dynlist_sc_update;
 367         cb.sc_cleanup = NULL;
 368         cb.sc_next = NULL;
 369
 370         o.o_callback = &cb;
 371         o.ors_deref = LDAP_DEREF_NEVER;
 372         o.ors_limit = NULL;
 373         o.ors_tlimit = SLAP_NO_LIMIT;
 374         o.ors_slimit = SLAP_NO_LIMIT;
 375
 376         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 377                 LDAPURLDesc     *lud = NULL;
 378                 int             i, j;
 379                 struct berval   dn;
 380                 int             rc;
 381
 382                 BER_BVZERO( &o.o_req_dn );
 383                 BER_BVZERO( &o.o_req_ndn );
 384                 o.ors_filter = NULL;
 385                 o.ors_attrs = NULL;
 386                 BER_BVZERO( &o.ors_filterstr );
 387
 388                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 389                         /* FIXME: error? */
 390                         continue;
 391                 }
 392
 393                 if ( lud->lud_host != NULL ) {
 394                         /* FIXME: host not allowed; reject as illegal? */
 395                         Debug( LDAP_DEBUG_ANY, "dynlist_prepare_entry(\"%s\"): "
 396                                 "illegal URI \"%s\"\n",
 397                                 e->e_name.bv_val, url->bv_val, 0 );
 398                         goto cleanup;
 399                 }
 400
 401                 if ( lud->lud_dn == NULL ) {
 402                         /* note that an empty base is not honored in terms
 403                          * of defaultSearchBase, because select_backend()
 404                          * is not aware of the defaultSearchBase option;
 405                          * this can be useful in case of a database serving
 406                          * the empty suffix */
 407                         BER_BVSTR( &dn, "" );
 408
 409                 } else {
 410                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 411                 }
 412                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 413                 if ( rc != LDAP_SUCCESS ) {
 414                         /* FIXME: error? */
 415                         goto cleanup;
 416                 }
 417                 o.ors_scope = lud->lud_scope;
 418
 419                 if ( dli->dli_member_ad != NULL ) {
 420                         /* if ( lud->lud_attrs != NULL ),
 421                          * the URL should be ignored */
 422                         o.ors_attrs = slap_anlist_no_attrs;
 423
 424                 } else if ( lud->lud_attrs == NULL ) {
 425                         o.ors_attrs = rs->sr_attrs;
 426
 427                 } else {
 428                         for ( i = 0; lud->lud_attrs[i]; i++)
 429                                 /* just count */ ;
 430
 431                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 432                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 433                                 const char      *text = NULL;
 434
 435                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 436                                 o.ors_attrs[j].an_desc = NULL;
 437                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 438                                 /* FIXME: ignore errors... */
 439
 440                                 if ( rs->sr_attrs == NULL ) {
 441                                         if ( o.ors_attrs[j].an_desc != NULL &&
 442                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 443                                         {
 444                                                 continue;
 445                                         }
 446
 447                                 } else {
 448                                         if ( o.ors_attrs[j].an_desc != NULL &&
 449                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 450                                         {
 451                                                 if ( !opattrs && !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 452                                                 {
 453                                                         continue;
 454                                                 }
 455
 456                                         } else {
 457                                                 if ( !userattrs &&
 458                                                                 o.ors_attrs[j].an_desc != NULL &&
 459                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 460                                                 {
 461                                                         continue;
 462                                                 }
 463                                         }
 464                                 }
 465
 466                                 j++;
 467                         }
 468
 469                         if ( j == 0 ) {
 470                                 goto cleanup;
 471                         }
 472
 473                         BER_BVZERO( &o.ors_attrs[j].an_name );
 474                 }
 475
 476                 if ( lud->lud_filter == NULL ) {
 477                         ber_dupbv_x( &o.ors_filterstr,
 478                                         &dli->dli_default_filter, op->o_tmpmemctx );
 479
 480                 } else {
 481                         struct berval   flt;
 482                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 483                         if ( dynlist_make_filter( op, &flt, &o.ors_filterstr ) ) {
 484                                 /* error */
 485                                 goto cleanup;
 486                         }
 487                 }
 488                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 489                 if ( o.ors_filter == NULL ) {
 490                         goto cleanup;
 491                 }
 492
 493                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 494                 if ( o.o_bd && o.o_bd->be_search ) {
 495 #ifdef SLAP_OPATTRS
 496                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 497 #endif /* SLAP_OPATTRS */
 498                         (void)o.o_bd->be_search( &o, &r );
 499                 }
 500
 501 cleanup:;
 502                 if ( id ) {
 503                         slap_op_groups_free( &o );
 504                 }
 505                 if ( o.ors_filter ) {
 506                         filter_free_x( &o, o.ors_filter );
 507                 }
 508                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 509                                 && o.ors_attrs != slap_anlist_no_attrs )
 510                 {
 511                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 512                 }
 513                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 514                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 515                 }
 516                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 517                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 518                 }
 519                 assert( BER_BVISNULL( &o.ors_filterstr )
 520                         || o.ors_filterstr.bv_val != lud->lud_filter );
 521                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 522                 ldap_free_urldesc( lud );
 523         }
 524
 525         rs->sr_entry = e;
 526         rs->sr_flags = e_flags;
 527
 528         return SLAP_CB_CONTINUE;
 529 }
 530
 531 static int
 532 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 533 {
 534         /* save the entry in the private field of the callback,
 535          * so it doesn't get freed (it's temporary!) */
 536         if ( rs->sr_entry != NULL ) {
 537                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 538                 dlc->dlc_e = rs->sr_entry;
 539                 rs->sr_entry = NULL;
 540         }
 541
 542         return 0;
 543 }
 544
 545 static int
 546 dynlist_compare( Operation *op, SlapReply *rs )
 547 {
 548         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 549         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 550         Operation o = *op;
 551         Entry *e = NULL;
 552
 553         for ( ; dli != NULL; dli = dli->dli_next ) {
 554                 if ( op->oq_compare.rs_ava->aa_desc == dli->dli_member_ad ) {
 555                         /* This compare is for one of the attributes we're
 556                          * interested in. We'll use slapd's existing dyngroup
 557                          * evaluator to get the answer we want.
 558                          */
 559                         struct berval *id = NULL;
 560
 561                         o.o_do_not_cache = 1;
 562
 563                         if ( ad_dgIdentity && backend_attribute( &o, NULL, &o.o_req_ndn,
 564                                 ad_dgIdentity, &id, ACL_READ ) == LDAP_SUCCESS ) {
 565                                 o.o_dn = *id;
 566                                 o.o_ndn = *id;
 567                                 o.o_groups = NULL; /* authz changed, invalidate cached groups */
 568                         }
 569                         rs->sr_err = backend_group( &o, NULL, &o.o_req_ndn,
 570                                 &o.oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 571                         switch ( rs->sr_err ) {
 572                         case LDAP_SUCCESS:
 573                                 rs->sr_err = LDAP_COMPARE_TRUE;
 574                                 break;
 575
 576                         case LDAP_NO_SUCH_OBJECT:
 577                                 /* NOTE: backend_group() returns noSuchObject
 578                                  * if op_ndn does not exist; however, since
 579                                  * dynamic list expansion means that the
 580                                  * member attribute is virtually present, the
 581                                  * non-existence of the asserted value implies
 582                                  * the assertion is FALSE rather than
 583                                  * UNDEFINED */
 584                                 rs->sr_err = LDAP_COMPARE_FALSE;
 585                                 break;
 586                         }
 587
 588                         if ( id ) ber_bvarray_free_x( id, o.o_tmpmemctx );
 589
 590                         return SLAP_CB_CONTINUE;
 591                 }
 592         }
 593
 594         if ( overlay_entry_get_ov( &o, &o.o_req_ndn, NULL, NULL, 0, &e, on ) !=
 595                 LDAP_SUCCESS || e == NULL ) {
 596                 return SLAP_CB_CONTINUE;
 597         }
 598         if ( ad_dgIdentity ) {
 599                 Attribute *id = attrs_find( e->e_attrs, ad_dgIdentity );
 600                 if ( id ) {
 601                         o.o_dn = id->a_vals[0];
 602                         o.o_ndn = id->a_nvals[0];
 603                         o.o_groups = NULL;
 604                 }
 605         }
 606         dli = (dynlist_info_t *)on->on_bi.bi_private;
 607         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 608                 Attribute       *a;
 609                 slap_callback   cb;
 610                 SlapReply       r = { REP_SEARCH };
 611                 AttributeName   an[2];
 612                 int             rc;
 613                 dynlist_sc_t    dlc = { 0 };
 614
 615                 if ( !is_entry_objectclass_or_sub( e, dli->dli_oc ))
 616                         continue;
 617
 618                 /* if the entry has the right objectClass, generate
 619                  * the dynamic list and compare */
 620                 dlc.dlc_dli = dli;
 621                 cb.sc_private = &dlc;
 622                 cb.sc_response = dynlist_sc_save_entry;
 623                 cb.sc_cleanup = NULL;
 624                 cb.sc_next = NULL;
 625                 o.o_callback = &cb;
 626
 627                 o.o_tag = LDAP_REQ_SEARCH;
 628                 o.ors_limit = NULL;
 629                 o.ors_tlimit = SLAP_NO_LIMIT;
 630                 o.ors_slimit = SLAP_NO_LIMIT;
 631
 632                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 633                 if ( !o.o_bd || !o.o_bd->be_search ) {
 634                         goto release;
 635                 }
 636
 637                 BER_BVSTR( &o.ors_filterstr, "(objectClass=*)" );
 638                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 639                 if ( o.ors_filter == NULL ) {
 640                         /* FIXME: error? */
 641                         goto release;
 642                 }
 643
 644                 o.ors_scope = LDAP_SCOPE_BASE;
 645                 o.ors_deref = LDAP_DEREF_NEVER;
 646                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 647                 an[0].an_desc = op->orc_ava->aa_desc;
 648                 BER_BVZERO( &an[1].an_name );
 649                 o.ors_attrs = an;
 650                 o.ors_attrsonly = 0;
 651
 652                 o.o_acl_priv = ACL_COMPARE;
 653
 654                 rc = o.o_bd->be_search( &o, &r );
 655                 filter_free_x( &o, o.ors_filter );
 656
 657                 if ( o.o_dn.bv_val != op->o_dn.bv_val ) {
 658                         slap_op_groups_free( &o );
 659                 }
 660
 661                 if ( rc != 0 ) {
 662                         goto release;
 663                 }
 664
 665                 if ( dlc.dlc_e != NULL ) {
 666                         r.sr_entry = dlc.dlc_e;
 667                 }
 668
 669                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 670                         /* error? */
 671                         goto release;
 672                 }
 673
 674                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 675                         a != NULL;
 676                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 677                 {
 678                         /* if we're here, we got a match... */
 679                         rs->sr_err = LDAP_COMPARE_FALSE;
 680
 681                         if ( value_find_ex( op->orc_ava->aa_desc,
 682                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 683                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 684                                 a->a_nvals, &op->orc_ava->aa_value, op->o_tmpmemctx ) == 0 )
 685                         {
 686                                 rs->sr_err = LDAP_COMPARE_TRUE;
 687                                 break;
 688                         }
 689                 }
 690
 691                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 692                         entry_free( r.sr_entry );
 693                 }
 694         }
 695
 696 release:;
 697         if ( e != NULL ) {
 698                 overlay_entry_release_ov( &o, e, 0, on );
 699         }
 700
 701         return SLAP_CB_CONTINUE;
 702 }
 703
 704 static int
 705 dynlist_response( Operation *op, SlapReply *rs )
 706 {
 707         dynlist_info_t  *dli;
 708
 709         switch ( op->o_tag ) {
 710         case LDAP_REQ_SEARCH:
 711                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 712                 {
 713                         int     rc = LDAP_OTHER;
 714
 715                         for ( dli = dynlist_is_dynlist_next( op, rs, NULL );
 716                                 dli;
 717                                 dli = dynlist_is_dynlist_next( op, rs, dli ) )
 718                         {
 719                                 rc = dynlist_prepare_entry( op, rs, dli );
 720                         }
 721
 722                         if ( rc != LDAP_OTHER ) {
 723                                 return rc;
 724                         }
 725                 }
 726                 break;
 727
 728         case LDAP_REQ_COMPARE:
 729                 switch ( rs->sr_err ) {
 730                 /* NOTE: we waste a few cycles running the dynamic list
 731                  * also when the result is FALSE, which occurs if the
 732                  * dynamic entry itself contains the AVA attribute  */
 733                 /* FIXME: this approach is less than optimal; a dedicated
 734                  * compare op should be implemented, that fetches the
 735                  * entry, checks if it has the appropriate objectClass
 736                  * and, in case, runs a compare thru all the URIs,
 737                  * stopping at the first positive occurrence; see ITS#3756 */
 738                 case LDAP_COMPARE_FALSE:
 739                 case LDAP_NO_SUCH_ATTRIBUTE:
 740                         return dynlist_compare( op, rs );
 741                 }
 742                 break;
 743
 744         default:
 745                 break;
 746         }
 747
 748         return SLAP_CB_CONTINUE;
 749 }
 750
 751 static int
 752 dynlist_build_def_filter( dynlist_info_t *dli )
 753 {
 754         char    *ptr;
 755
 756         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 757                 + dli->dli_oc->soc_cname.bv_len;
 758         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 759         if ( dli->dli_default_filter.bv_val == NULL ) {
 760                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 761                         0, 0, 0 );
 762                 return -1;
 763         }
 764
 765         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 766         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 767         ptr = lutil_strcopy( ptr, "))" );
 768
 769         assert( dli->dli_default_filter.bv_len == ptr - dli->dli_default_filter.bv_val );
 770
 771         return 0;
 772 }
 773
 774 #ifdef OL_2_2_COMPAT
 775 static int
 776 dynlist_db_config(
 777         BackendDB       *be,
 778         const char      *fname,
 779         int             lineno,
 780         int             argc,
 781         char            **argv )
 782 {
 783         slap_overinst   *on = (slap_overinst *)be->bd_info;
 784
 785         int             rc = 0;
 786
 787         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 788                 dynlist_info_t          **dlip;
 789                 ObjectClass             *oc;
 790                 AttributeDescription    *ad = NULL,
 791                                         *member_ad = NULL;
 792                 const char              *text;
 793
 794                 if ( argc < 3 || argc > 4 ) {
 795                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 796                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 797                                 "invalid arg number #%d.\n",
 798                                 fname, lineno, argc );
 799                         return 1;
 800                 }
 801
 802                 oc = oc_find( argv[1] );
 803                 if ( oc == NULL ) {
 804                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 805                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 806                                 "unable to find ObjectClass \"%s\"\n",
 807                                 fname, lineno, argv[ 1 ] );
 808                         return 1;
 809                 }
 810
 811                 rc = slap_str2ad( argv[2], &ad, &text );
 812                 if ( rc != LDAP_SUCCESS ) {
 813                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 814                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 815                                 "unable to find AttributeDescription \"%s\"\n",
 816                                 fname, lineno, argv[2] );
 817                         return 1;
 818                 }
 819
 820                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 821                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 822                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 823                                 "AttributeDescription \"%s\" "
 824                                 "must be a subtype of \"labeledURI\"\n",
 825                                 fname, lineno, argv[2] );
 826                         return 1;
 827                 }
 828
 829                 if ( argc == 4 ) {
 830                         rc = slap_str2ad( argv[3], &member_ad, &text );
 831                         if ( rc != LDAP_SUCCESS ) {
 832                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 833                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 834                                         "unable to find AttributeDescription \"%s\"\n",
 835                                         fname, lineno, argv[3] );
 836                                 return 1;
 837                         }
 838                 }
 839
 840                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 841                         *dlip; dlip = &(*dlip)->dli_next )
 842                 {
 843                         /* The same URL attribute / member attribute pair
 844                          * cannot be repeated */
 845                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 846                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 847                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 848                                         "URL attributeDescription \"%s\" already mapped.\n",
 849                                         fname, lineno, ad->ad_cname.bv_val );
 850 #if 0
 851                                 /* make it a warning... */
 852                                 return 1;
 853 #endif
 854                         }
 855                 }
 856
 857                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 858                 (*dlip)->dli_oc = oc;
 859                 (*dlip)->dli_ad = ad;
 860                 (*dlip)->dli_member_ad = member_ad;
 861
 862                 if ( dynlist_build_def_filter( *dlip ) ) {
 863                         ch_free( *dlip );
 864                         *dlip = NULL;
 865                         return 1;
 866                 }
 867
 868         /* allow dyngroup syntax */
 869         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
 870                 dynlist_info_t          **dlip;
 871                 ObjectClass             *oc;
 872                 AttributeDescription    *ad = NULL,
 873                                         *member_ad = NULL;
 874                 const char              *text;
 875
 876                 if ( argc != 3 ) {
 877                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 878                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 879                                 "invalid arg number #%d.\n",
 880                                 fname, lineno, argc );
 881                         return 1;
 882                 }
 883
 884                 oc = oc_find( "groupOfURLs" );
 885                 if ( oc == NULL ) {
 886                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 887                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 888                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
 889                                 fname, lineno, 0 );
 890                         return 1;
 891                 }
 892
 893                 rc = slap_str2ad( argv[1], &member_ad, &text );
 894                 if ( rc != LDAP_SUCCESS ) {
 895                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 896                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 897                                 "unable to find AttributeDescription \"%s\"\n",
 898                                 fname, lineno, argv[1] );
 899                         return 1;
 900                 }
 901
 902                 rc = slap_str2ad( argv[2], &ad, &text );
 903                 if ( rc != LDAP_SUCCESS ) {
 904                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 905                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 906                                 "unable to find AttributeDescription \"%s\"\n",
 907                                 fname, lineno, argv[2] );
 908                         return 1;
 909                 }
 910
 911                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 912                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 913                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 914                                 "AttributeDescription \"%s\" "
 915                                 "must be a subtype of \"labeledURI\"\n",
 916                                 fname, lineno, argv[2] );
 917                         return 1;
 918                 }
 919
 920                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 921                         *dlip; dlip = &(*dlip)->dli_next )
 922                 {
 923                         /* The same URL attribute / member attribute pair
 924                          * cannot be repeated */
 925                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 926                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 927                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 928                                         "URL attributeDescription \"%s\" already mapped.\n",
 929                                         fname, lineno, ad->ad_cname.bv_val );
 930 #if 0
 931                                 /* make it a warning... */
 932                                 return 1;
 933 #endif
 934                         }
 935                 }
 936
 937                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 938                 (*dlip)->dli_oc = oc;
 939                 (*dlip)->dli_ad = ad;
 940                 (*dlip)->dli_member_ad = member_ad;
 941
 942                 if ( dynlist_build_def_filter( *dlip ) ) {
 943                         ch_free( *dlip );
 944                         *dlip = NULL;
 945                         return 1;
 946                 }
 947
 948         } else {
 949                 rc = SLAP_CONF_UNKNOWN;
 950         }
 951
 952         return rc;
 953 }
 954
 955 #else
 956 enum {
 957         DL_ATTRSET = 1,
 958         DL_ATTRPAIR,
 959         DL_ATTRPAIR_COMPAT,
 960         DL_LAST
 961 };
 962
 963 static ConfigDriver     dl_cfgen;
 964
 965 static ConfigTable dlcfg[] = {
 966         { "dynlist-attrset", "group-oc> <URL-ad> <member-ad",
 967                 3, 4, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
 968                 "( OLcfgOvAt:8.1 NAME 'olcDLattrSet' "
 969                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
 970                         "EQUALITY caseIgnoreMatch "
 971                         "SYNTAX OMsDirectoryString "
 972                         "X-ORDERED 'VALUES' )",
 973                         NULL, NULL },
 974         { "dynlist-attrpair", "member-ad> <URL-ad",
 975                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
 976                         NULL, NULL, NULL },
 977 #ifdef TAKEOVER_DYNGROUP
 978         { "attrpair", "member-ad> <URL-ad",
 979                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
 980                         NULL, NULL, NULL },
 981 #endif
 982         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
 983 };
 984
 985 static ConfigOCs dlocs[] = {
 986         { "( OLcfgOvOc:8.1 "
 987                 "NAME 'olcDynamicList' "
 988                 "DESC 'Dynamic list configuration' "
 989                 "SUP olcOverlayConfig "
 990                 "MAY olcDLattrSet )",
 991                 Cft_Overlay, dlcfg, NULL, NULL },
 992         { NULL, 0, NULL }
 993 };
 994
 995 static int
 996 dl_cfgen( ConfigArgs *c )
 997 {
 998         slap_overinst   *on = (slap_overinst *)c->bi;
 999         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
1000
1001         int             rc = 0, i;
1002
1003         if ( c->op == SLAP_CONFIG_EMIT ) {
1004                 switch( c->type ) {
1005                 case DL_ATTRSET:
1006                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
1007                                 struct berval   bv;
1008                                 char            *ptr = c->cr_msg;
1009
1010                                 assert( dli->dli_oc != NULL );
1011                                 assert( dli->dli_ad != NULL );
1012
1013                                 ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ),
1014                                         SLAP_X_ORDERED_FMT "%s %s", i,
1015                                         dli->dli_oc->soc_cname.bv_val,
1016                                         dli->dli_ad->ad_cname.bv_val );
1017
1018                                 if ( dli->dli_member_ad != NULL ) {
1019                                         ptr[ 0 ] = ' ';
1020                                         ptr++;
1021                                         ptr = lutil_strcopy( ptr, dli->dli_member_ad->ad_cname.bv_val );
1022                                 }
1023
1024                                 bv.bv_val = c->cr_msg;
1025                                 bv.bv_len = ptr - bv.bv_val;
1026                                 value_add_one( &c->rvalue_vals, &bv );
1027                         }
1028                         break;
1029
1030                 case DL_ATTRPAIR_COMPAT:
1031                 case DL_ATTRPAIR:
1032                         rc = 1;
1033                         break;
1034
1035                 default:
1036                         rc = 1;
1037                         break;
1038                 }
1039
1040                 return rc;
1041
1042         } else if ( c->op == LDAP_MOD_DELETE ) {
1043                 switch( c->type ) {
1044                 case DL_ATTRSET:
1045                         if ( c->valx < 0 ) {
1046                                 dynlist_info_t  *dli_next;
1047
1048                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1049                                         dli_next = dli->dli_next;
1050
1051                                         ch_free( dli->dli_default_filter.bv_val );
1052                                         ch_free( dli );
1053                                 }
1054
1055                                 on->on_bi.bi_private = NULL;
1056
1057                         } else {
1058                                 dynlist_info_t  **dlip;
1059
1060                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1061                                         i < c->valx; i++ )
1062                                 {
1063                                         if ( *dlip == NULL ) {
1064                                                 return 1;
1065                                         }
1066                                         dlip = &(*dlip)->dli_next;
1067                                 }
1068
1069                                 dli = *dlip;
1070                                 *dlip = dli->dli_next;
1071                                 ch_free( dli->dli_default_filter.bv_val );
1072                                 ch_free( dli );
1073
1074                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1075                         }
1076                         break;
1077
1078                 case DL_ATTRPAIR_COMPAT:
1079                 case DL_ATTRPAIR:
1080                         rc = 1;
1081                         break;
1082
1083                 default:
1084                         rc = 1;
1085                         break;
1086                 }
1087
1088                 return rc;
1089         }
1090
1091         switch( c->type ) {
1092         case DL_ATTRSET: {
1093                 dynlist_info_t          **dlip,
1094                                         *dli_next = NULL;
1095                 ObjectClass             *oc = NULL;
1096                 AttributeDescription    *ad = NULL,
1097                                         *member_ad = NULL;
1098                 const char              *text;
1099
1100                 oc = oc_find( c->argv[ 1 ] );
1101                 if ( oc == NULL ) {
1102                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1103                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1104                                 "unable to find ObjectClass \"%s\"",
1105                                 c->argv[ 1 ] );
1106                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1107                                 c->log, c->cr_msg, 0 );
1108                         return 1;
1109                 }
1110
1111                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1112                 if ( rc != LDAP_SUCCESS ) {
1113                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1114                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1115                                 "unable to find AttributeDescription \"%s\"",
1116                                 c->argv[ 2 ] );
1117                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1118                                 c->log, c->cr_msg, 0 );
1119                         return 1;
1120                 }
1121
1122                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1123                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1124                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1125                                 "AttributeDescription \"%s\" "
1126                                 "must be a subtype of \"labeledURI\"",
1127                                 c->argv[ 2 ] );
1128                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1129                                 c->log, c->cr_msg, 0 );
1130                         return 1;
1131                 }
1132
1133                 if ( c->argc == 4 ) {
1134                         rc = slap_str2ad( c->argv[ 3 ], &member_ad, &text );
1135                         if ( rc != LDAP_SUCCESS ) {
1136                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1137                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1138                                         "unable to find AttributeDescription \"%s\"\n",
1139                                         c->argv[ 3 ] );
1140                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1141                                         c->log, c->cr_msg, 0 );
1142                                 return 1;
1143                         }
1144                 }
1145
1146                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1147                         *dlip; dlip = &(*dlip)->dli_next )
1148                 {
1149                         /* The same URL attribute / member attribute pair
1150                          * cannot be repeated */
1151                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1152                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1153                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1154                                         "URL attributeDescription \"%s\" already mapped.\n",
1155                                         ad->ad_cname.bv_val );
1156                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1157                                         c->log, c->cr_msg, 0 );
1158 #if 0
1159                                 /* make it a warning... */
1160                                 return 1;
1161 #endif
1162                         }
1163                 }
1164
1165                 if ( c->valx > 0 ) {
1166                         int     i;
1167
1168                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1169                                 i < c->valx; i++ )
1170                         {
1171                                 if ( *dlip == NULL ) {
1172                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1173                                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1174                                                 "invalid index {%d}\n",
1175                                                 c->valx );
1176                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1177                                                 c->log, c->cr_msg, 0 );
1178                                         return 1;
1179                                 }
1180                                 dlip = &(*dlip)->dli_next;
1181                         }
1182                         dli_next = *dlip;
1183
1184                 } else {
1185                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1186                                 *dlip; dlip = &(*dlip)->dli_next )
1187                                 /* goto last */;
1188                 }
1189
1190                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1191
1192                 (*dlip)->dli_oc = oc;
1193                 (*dlip)->dli_ad = ad;
1194                 (*dlip)->dli_member_ad = member_ad;
1195                 (*dlip)->dli_next = dli_next;
1196
1197                 rc = dynlist_build_def_filter( *dlip );
1198
1199                 } break;
1200
1201         case DL_ATTRPAIR_COMPAT:
1202                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1203                         "warning: \"attrpair\" only supported for limited "
1204                         "backward compatibility with overlay \"dyngroup\"" );
1205                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
1206                 /* fallthru */
1207
1208         case DL_ATTRPAIR: {
1209                 dynlist_info_t          **dlip;
1210                 ObjectClass             *oc = NULL;
1211                 AttributeDescription    *ad = NULL,
1212                                         *member_ad = NULL;
1213                 const char              *text;
1214
1215                 oc = oc_find( "groupOfURLs" );
1216                 if ( oc == NULL ) {
1217                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1218                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1219                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1220                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1221                                 c->log, c->cr_msg, 0 );
1222                         return 1;
1223                 }
1224
1225                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1226                 if ( rc != LDAP_SUCCESS ) {
1227                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1228                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1229                                 "unable to find AttributeDescription \"%s\"",
1230                                 c->argv[ 1 ] );
1231                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1232                                 c->log, c->cr_msg, 0 );
1233                         return 1;
1234                 }
1235
1236                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1237                 if ( rc != LDAP_SUCCESS ) {
1238                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1239                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1240                                 "unable to find AttributeDescription \"%s\"\n",
1241                                 c->argv[ 2 ] );
1242                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1243                                 c->log, c->cr_msg, 0 );
1244                         return 1;
1245                 }
1246
1247                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1248                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1249                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1250                                 "AttributeDescription \"%s\" "
1251                                 "must be a subtype of \"labeledURI\"",
1252                                 c->argv[ 2 ] );
1253                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1254                                 c->log, c->cr_msg, 0 );
1255                         return 1;
1256                 }
1257
1258                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1259                         *dlip; dlip = &(*dlip)->dli_next )
1260                 {
1261                         /* The same URL attribute / member attribute pair
1262                          * cannot be repeated */
1263                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1264                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1265                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1266                                         "URL attributeDescription \"%s\" already mapped.\n",
1267                                         ad->ad_cname.bv_val );
1268                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1269                                         c->log, c->cr_msg, 0 );
1270 #if 0
1271                                 /* make it a warning... */
1272                                 return 1;
1273 #endif
1274                         }
1275                 }
1276
1277                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1278
1279                 (*dlip)->dli_oc = oc;
1280                 (*dlip)->dli_ad = ad;
1281                 (*dlip)->dli_member_ad = member_ad;
1282
1283                 rc = dynlist_build_def_filter( *dlip );
1284
1285                 } break;
1286
1287         default:
1288                 rc = 1;
1289                 break;
1290         }
1291
1292         return rc;
1293 }
1294 #endif
1295
1296 static int
1297 dynlist_db_open(
1298         BackendDB       *be,
1299         ConfigReply     *cr )
1300 {
1301         slap_overinst           *on = (slap_overinst *) be->bd_info;
1302         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1303         ObjectClass             *oc = NULL;
1304         AttributeDescription    *ad = NULL;
1305         const char      *text;
1306         int rc;
1307
1308         if ( dli == NULL ) {
1309                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1310                 on->on_bi.bi_private = (void *)dli;
1311         }
1312
1313         for ( ; dli; dli = dli->dli_next ) {
1314                 if ( dli->dli_oc == NULL ) {
1315                         if ( oc == NULL ) {
1316                                 oc = oc_find( "groupOfURLs" );
1317                                 if ( oc == NULL ) {
1318                                         sprintf( cr->msg, "unable to fetch objectClass \"groupOfURLs\"" );
1319                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1320                                         return 1;
1321                                 }
1322                         }
1323
1324                         dli->dli_oc = oc;
1325                 }
1326
1327                 if ( dli->dli_ad == NULL ) {
1328                         if ( ad == NULL ) {
1329                                 rc = slap_str2ad( "memberURL", &ad, &text );
1330                                 if ( rc != LDAP_SUCCESS ) {
1331                                         sprintf( cr->msg, "unable to fetch attributeDescription \"memberURL\": %d (%s)",
1332                                                 rc, text );
1333                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1334                                         return 1;
1335                                 }
1336                         }
1337
1338                         dli->dli_ad = ad;
1339                 }
1340
1341                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1342                         rc = dynlist_build_def_filter( dli );
1343                         if ( rc != 0 ) {
1344                                 return rc;
1345                         }
1346                 }
1347         }
1348
1349         rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text );
1350         if ( rc != LDAP_SUCCESS ) {
1351                 snprintf( cr->msg, sizeof( cr->msg),
1352                         "unable to fetch attributeDescription \"dgIdentity\": %d (%s)",
1353                         rc, text );
1354                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1355                 /* Just a warning */
1356         }
1357
1358         return 0;
1359 }
1360
1361 static int
1362 dynlist_db_destroy(
1363         BackendDB       *be,
1364         ConfigReply     *cr )
1365 {
1366         slap_overinst   *on = (slap_overinst *) be->bd_info;
1367
1368         if ( on->on_bi.bi_private ) {
1369                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1370                                 *dli_next;
1371
1372                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1373                         dli_next = dli->dli_next;
1374
1375                         ch_free( dli->dli_default_filter.bv_val );
1376                         ch_free( dli );
1377                 }
1378         }
1379
1380         return 0;
1381 }
1382
1383 static slap_overinst    dynlist = { { NULL } };
1384 #ifdef TAKEOVER_DYNGROUP
1385 static char             *obsolete_names[] = {
1386         "dyngroup",
1387         NULL
1388 };
1389 #endif
1390
1391 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1392 static
1393 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1394 int
1395 dynlist_initialize(void)
1396 {
1397 #ifndef OL_2_2_COMPAT
1398         int     rc = 0;
1399 #endif
1400
1401         dynlist.on_bi.bi_type = "dynlist";
1402
1403 #ifdef TAKEOVER_DYNGROUP
1404         /* makes dynlist incompatible with dyngroup */
1405         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1406 #endif
1407
1408 #ifdef OL_2_2_COMPAT
1409         dynlist.on_bi.bi_db_config = dynlist_db_config;
1410 #else
1411         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1412 #endif
1413         dynlist.on_bi.bi_db_open = dynlist_db_open;
1414         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1415
1416         dynlist.on_response = dynlist_response;
1417
1418 #ifndef OL_2_2_COMPAT
1419         dynlist.on_bi.bi_cf_ocs = dlocs;
1420
1421         rc = config_register_schema( dlcfg, dlocs );
1422         if ( rc ) {
1423                 return rc;
1424         }
1425 #endif
1426
1427         return overlay_register( &dynlist );
1428 }
1429
1430 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1431 int
1432 init_module( int argc, char *argv[] )
1433 {
1434         return dynlist_initialize();
1435 }
1436 #endif
1437
1438 #endif /* SLAPD_OVER_DYNLIST */