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;
 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                         return SLAP_CB_CONTINUE;
 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                         return SLAP_CB_CONTINUE;
 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                         return rc;
 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                         return SLAP_CB_CONTINUE;
 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         return SLAP_CB_CONTINUE;
 697 }
 698
 699 static int
 700 dynlist_response( Operation *op, SlapReply *rs )
 701 {
 702         dynlist_info_t  *dli;
 703
 704         switch ( op->o_tag ) {
 705         case LDAP_REQ_SEARCH:
 706                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 707                 {
 708                         int     rc = LDAP_OTHER;
 709
 710                         for ( dli = dynlist_is_dynlist_next( op, rs, NULL );
 711                                 dli;
 712                                 dli = dynlist_is_dynlist_next( op, rs, dli ) )
 713                         {
 714                                 rc = dynlist_prepare_entry( op, rs, dli );
 715                         }
 716
 717                         if ( rc != LDAP_OTHER ) {
 718                                 return rc;
 719                         }
 720                 }
 721                 break;
 722
 723         case LDAP_REQ_COMPARE:
 724                 switch ( rs->sr_err ) {
 725                 /* NOTE: we waste a few cycles running the dynamic list
 726                  * also when the result is FALSE, which occurs if the
 727                  * dynamic entry itself contains the AVA attribute  */
 728                 /* FIXME: this approach is less than optimal; a dedicated
 729                  * compare op should be implemented, that fetches the
 730                  * entry, checks if it has the appropriate objectClass
 731                  * and, in case, runs a compare thru all the URIs,
 732                  * stopping at the first positive occurrence; see ITS#3756 */
 733                 case LDAP_COMPARE_FALSE:
 734                 case LDAP_NO_SUCH_ATTRIBUTE:
 735                         return dynlist_compare( op, rs );
 736                 }
 737                 break;
 738
 739         default:
 740                 break;
 741         }
 742
 743         return SLAP_CB_CONTINUE;
 744 }
 745
 746 static int
 747 dynlist_build_def_filter( dynlist_info_t *dli )
 748 {
 749         char    *ptr;
 750
 751         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 752                 + dli->dli_oc->soc_cname.bv_len;
 753         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 754         if ( dli->dli_default_filter.bv_val == NULL ) {
 755                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 756                         0, 0, 0 );
 757                 return -1;
 758         }
 759
 760         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 761         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 762         ptr = lutil_strcopy( ptr, "))" );
 763
 764         assert( dli->dli_default_filter.bv_len == ptr - dli->dli_default_filter.bv_val );
 765
 766         return 0;
 767 }
 768
 769 #ifdef OL_2_2_COMPAT
 770 static int
 771 dynlist_db_config(
 772         BackendDB       *be,
 773         const char      *fname,
 774         int             lineno,
 775         int             argc,
 776         char            **argv )
 777 {
 778         slap_overinst   *on = (slap_overinst *)be->bd_info;
 779
 780         int             rc = 0;
 781
 782         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 783                 dynlist_info_t          **dlip;
 784                 ObjectClass             *oc;
 785                 AttributeDescription    *ad = NULL,
 786                                         *member_ad = NULL;
 787                 const char              *text;
 788
 789                 if ( argc < 3 || argc > 4 ) {
 790                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 791                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 792                                 "invalid arg number #%d.\n",
 793                                 fname, lineno, argc );
 794                         return 1;
 795                 }
 796
 797                 oc = oc_find( argv[1] );
 798                 if ( oc == NULL ) {
 799                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 800                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 801                                 "unable to find ObjectClass \"%s\"\n",
 802                                 fname, lineno, argv[ 1 ] );
 803                         return 1;
 804                 }
 805
 806                 rc = slap_str2ad( argv[2], &ad, &text );
 807                 if ( rc != LDAP_SUCCESS ) {
 808                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 809                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 810                                 "unable to find AttributeDescription \"%s\"\n",
 811                                 fname, lineno, argv[2] );
 812                         return 1;
 813                 }
 814
 815                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 816                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 817                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 818                                 "AttributeDescription \"%s\" "
 819                                 "must be a subtype of \"labeledURI\"\n",
 820                                 fname, lineno, argv[2] );
 821                         return 1;
 822                 }
 823
 824                 if ( argc == 4 ) {
 825                         rc = slap_str2ad( argv[3], &member_ad, &text );
 826                         if ( rc != LDAP_SUCCESS ) {
 827                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 828                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 829                                         "unable to find AttributeDescription \"%s\"\n",
 830                                         fname, lineno, argv[3] );
 831                                 return 1;
 832                         }
 833                 }
 834
 835                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 836                         *dlip; dlip = &(*dlip)->dli_next )
 837                 {
 838                         /* The same URL attribute / member attribute pair
 839                          * cannot be repeated */
 840                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 841                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 842                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 843                                         "URL attributeDescription \"%s\" already mapped.\n",
 844                                         fname, lineno, ad->ad_cname.bv_val );
 845 #if 0
 846                                 /* make it a warning... */
 847                                 return 1;
 848 #endif
 849                         }
 850                 }
 851
 852                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 853                 (*dlip)->dli_oc = oc;
 854                 (*dlip)->dli_ad = ad;
 855                 (*dlip)->dli_member_ad = member_ad;
 856
 857                 if ( dynlist_build_def_filter( *dlip ) ) {
 858                         ch_free( *dlip );
 859                         *dlip = NULL;
 860                         return 1;
 861                 }
 862
 863         /* allow dyngroup syntax */
 864         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
 865                 dynlist_info_t          **dlip;
 866                 ObjectClass             *oc;
 867                 AttributeDescription    *ad = NULL,
 868                                         *member_ad = NULL;
 869                 const char              *text;
 870
 871                 if ( argc != 3 ) {
 872                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 873                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 874                                 "invalid arg number #%d.\n",
 875                                 fname, lineno, argc );
 876                         return 1;
 877                 }
 878
 879                 oc = oc_find( "groupOfURLs" );
 880                 if ( oc == NULL ) {
 881                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 882                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 883                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
 884                                 fname, lineno, 0 );
 885                         return 1;
 886                 }
 887
 888                 rc = slap_str2ad( argv[1], &member_ad, &text );
 889                 if ( rc != LDAP_SUCCESS ) {
 890                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 891                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 892                                 "unable to find AttributeDescription \"%s\"\n",
 893                                 fname, lineno, argv[1] );
 894                         return 1;
 895                 }
 896
 897                 rc = slap_str2ad( argv[2], &ad, &text );
 898                 if ( rc != LDAP_SUCCESS ) {
 899                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 900                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 901                                 "unable to find AttributeDescription \"%s\"\n",
 902                                 fname, lineno, argv[2] );
 903                         return 1;
 904                 }
 905
 906                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 907                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 908                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 909                                 "AttributeDescription \"%s\" "
 910                                 "must be a subtype of \"labeledURI\"\n",
 911                                 fname, lineno, argv[2] );
 912                         return 1;
 913                 }
 914
 915                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 916                         *dlip; dlip = &(*dlip)->dli_next )
 917                 {
 918                         /* The same URL attribute / member attribute pair
 919                          * cannot be repeated */
 920                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
 921                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 922                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 923                                         "URL attributeDescription \"%s\" already mapped.\n",
 924                                         fname, lineno, ad->ad_cname.bv_val );
 925 #if 0
 926                                 /* make it a warning... */
 927                                 return 1;
 928 #endif
 929                         }
 930                 }
 931
 932                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 933                 (*dlip)->dli_oc = oc;
 934                 (*dlip)->dli_ad = ad;
 935                 (*dlip)->dli_member_ad = member_ad;
 936
 937                 if ( dynlist_build_def_filter( *dlip ) ) {
 938                         ch_free( *dlip );
 939                         *dlip = NULL;
 940                         return 1;
 941                 }
 942
 943         } else {
 944                 rc = SLAP_CONF_UNKNOWN;
 945         }
 946
 947         return rc;
 948 }
 949
 950 #else
 951 enum {
 952         DL_ATTRSET = 1,
 953         DL_ATTRPAIR,
 954         DL_ATTRPAIR_COMPAT,
 955         DL_LAST
 956 };
 957
 958 static ConfigDriver     dl_cfgen;
 959
 960 static ConfigTable dlcfg[] = {
 961         { "dynlist-attrset", "group-oc> <URL-ad> <member-ad",
 962                 3, 4, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
 963                 "( OLcfgOvAt:8.1 NAME 'olcDLattrSet' "
 964                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
 965                         "EQUALITY caseIgnoreMatch "
 966                         "SYNTAX OMsDirectoryString "
 967                         "X-ORDERED 'VALUES' )",
 968                         NULL, NULL },
 969         { "dynlist-attrpair", "member-ad> <URL-ad",
 970                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
 971                         NULL, NULL, NULL },
 972 #ifdef TAKEOVER_DYNGROUP
 973         { "attrpair", "member-ad> <URL-ad",
 974                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
 975                         NULL, NULL, NULL },
 976 #endif
 977         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
 978 };
 979
 980 static ConfigOCs dlocs[] = {
 981         { "( OLcfgOvOc:8.1 "
 982                 "NAME 'olcDynamicList' "
 983                 "DESC 'Dynamic list configuration' "
 984                 "SUP olcOverlayConfig "
 985                 "MAY olcDLattrSet )",
 986                 Cft_Overlay, dlcfg, NULL, NULL },
 987         { NULL, 0, NULL }
 988 };
 989
 990 static int
 991 dl_cfgen( ConfigArgs *c )
 992 {
 993         slap_overinst   *on = (slap_overinst *)c->bi;
 994         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 995
 996         int             rc = 0, i;
 997
 998         if ( c->op == SLAP_CONFIG_EMIT ) {
 999                 switch( c->type ) {
1000                 case DL_ATTRSET:
1001                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
1002                                 struct berval   bv;
1003                                 char            *ptr = c->cr_msg;
1004
1005                                 assert( dli->dli_oc != NULL );
1006                                 assert( dli->dli_ad != NULL );
1007
1008                                 ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ),
1009                                         SLAP_X_ORDERED_FMT "%s %s", i,
1010                                         dli->dli_oc->soc_cname.bv_val,
1011                                         dli->dli_ad->ad_cname.bv_val );
1012
1013                                 if ( dli->dli_member_ad != NULL ) {
1014                                         ptr[ 0 ] = ' ';
1015                                         ptr++;
1016                                         ptr = lutil_strcopy( ptr, dli->dli_member_ad->ad_cname.bv_val );
1017                                 }
1018
1019                                 bv.bv_val = c->cr_msg;
1020                                 bv.bv_len = ptr - bv.bv_val;
1021                                 value_add_one( &c->rvalue_vals, &bv );
1022                         }
1023                         break;
1024
1025                 case DL_ATTRPAIR_COMPAT:
1026                 case DL_ATTRPAIR:
1027                         rc = 1;
1028                         break;
1029
1030                 default:
1031                         rc = 1;
1032                         break;
1033                 }
1034
1035                 return rc;
1036
1037         } else if ( c->op == LDAP_MOD_DELETE ) {
1038                 switch( c->type ) {
1039                 case DL_ATTRSET:
1040                         if ( c->valx < 0 ) {
1041                                 dynlist_info_t  *dli_next;
1042
1043                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1044                                         dli_next = dli->dli_next;
1045
1046                                         ch_free( dli->dli_default_filter.bv_val );
1047                                         ch_free( dli );
1048                                 }
1049
1050                                 on->on_bi.bi_private = NULL;
1051
1052                         } else {
1053                                 dynlist_info_t  **dlip;
1054
1055                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1056                                         i < c->valx; i++ )
1057                                 {
1058                                         if ( *dlip == NULL ) {
1059                                                 return 1;
1060                                         }
1061                                         dlip = &(*dlip)->dli_next;
1062                                 }
1063
1064                                 dli = *dlip;
1065                                 *dlip = dli->dli_next;
1066                                 ch_free( dli->dli_default_filter.bv_val );
1067                                 ch_free( dli );
1068
1069                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1070                         }
1071                         break;
1072
1073                 case DL_ATTRPAIR_COMPAT:
1074                 case DL_ATTRPAIR:
1075                         rc = 1;
1076                         break;
1077
1078                 default:
1079                         rc = 1;
1080                         break;
1081                 }
1082
1083                 return rc;
1084         }
1085
1086         switch( c->type ) {
1087         case DL_ATTRSET: {
1088                 dynlist_info_t          **dlip,
1089                                         *dli_next = NULL;
1090                 ObjectClass             *oc = NULL;
1091                 AttributeDescription    *ad = NULL,
1092                                         *member_ad = NULL;
1093                 const char              *text;
1094
1095                 oc = oc_find( c->argv[ 1 ] );
1096                 if ( oc == NULL ) {
1097                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1098                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1099                                 "unable to find ObjectClass \"%s\"",
1100                                 c->argv[ 1 ] );
1101                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1102                                 c->log, c->cr_msg, 0 );
1103                         return 1;
1104                 }
1105
1106                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1107                 if ( rc != LDAP_SUCCESS ) {
1108                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1109                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1110                                 "unable to find AttributeDescription \"%s\"",
1111                                 c->argv[ 2 ] );
1112                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1113                                 c->log, c->cr_msg, 0 );
1114                         return 1;
1115                 }
1116
1117                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1118                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1119                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1120                                 "AttributeDescription \"%s\" "
1121                                 "must be a subtype of \"labeledURI\"",
1122                                 c->argv[ 2 ] );
1123                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1124                                 c->log, c->cr_msg, 0 );
1125                         return 1;
1126                 }
1127
1128                 if ( c->argc == 4 ) {
1129                         rc = slap_str2ad( c->argv[ 3 ], &member_ad, &text );
1130                         if ( rc != LDAP_SUCCESS ) {
1131                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1132                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1133                                         "unable to find AttributeDescription \"%s\"\n",
1134                                         c->argv[ 3 ] );
1135                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1136                                         c->log, c->cr_msg, 0 );
1137                                 return 1;
1138                         }
1139                 }
1140
1141                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1142                         *dlip; dlip = &(*dlip)->dli_next )
1143                 {
1144                         /* The same URL attribute / member attribute pair
1145                          * cannot be repeated */
1146                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1147                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1148                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1149                                         "URL attributeDescription \"%s\" already mapped.\n",
1150                                         ad->ad_cname.bv_val );
1151                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1152                                         c->log, c->cr_msg, 0 );
1153 #if 0
1154                                 /* make it a warning... */
1155                                 return 1;
1156 #endif
1157                         }
1158                 }
1159
1160                 if ( c->valx > 0 ) {
1161                         int     i;
1162
1163                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1164                                 i < c->valx; i++ )
1165                         {
1166                                 if ( *dlip == NULL ) {
1167                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1168                                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1169                                                 "invalid index {%d}\n",
1170                                                 c->valx );
1171                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1172                                                 c->log, c->cr_msg, 0 );
1173                                         return 1;
1174                                 }
1175                                 dlip = &(*dlip)->dli_next;
1176                         }
1177                         dli_next = *dlip;
1178
1179                 } else {
1180                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1181                                 *dlip; dlip = &(*dlip)->dli_next )
1182                                 /* goto last */;
1183                 }
1184
1185                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1186
1187                 (*dlip)->dli_oc = oc;
1188                 (*dlip)->dli_ad = ad;
1189                 (*dlip)->dli_member_ad = member_ad;
1190                 (*dlip)->dli_next = dli_next;
1191
1192                 rc = dynlist_build_def_filter( *dlip );
1193
1194                 } break;
1195
1196         case DL_ATTRPAIR_COMPAT:
1197                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1198                         "warning: \"attrpair\" only supported for limited "
1199                         "backward compatibility with overlay \"dyngroup\"" );
1200                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
1201                 /* fallthru */
1202
1203         case DL_ATTRPAIR: {
1204                 dynlist_info_t          **dlip;
1205                 ObjectClass             *oc = NULL;
1206                 AttributeDescription    *ad = NULL,
1207                                         *member_ad = NULL;
1208                 const char              *text;
1209
1210                 oc = oc_find( "groupOfURLs" );
1211                 if ( oc == NULL ) {
1212                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1213                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1214                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1215                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1216                                 c->log, c->cr_msg, 0 );
1217                         return 1;
1218                 }
1219
1220                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1221                 if ( rc != LDAP_SUCCESS ) {
1222                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1223                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1224                                 "unable to find AttributeDescription \"%s\"",
1225                                 c->argv[ 1 ] );
1226                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1227                                 c->log, c->cr_msg, 0 );
1228                         return 1;
1229                 }
1230
1231                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1232                 if ( rc != LDAP_SUCCESS ) {
1233                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1234                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1235                                 "unable to find AttributeDescription \"%s\"\n",
1236                                 c->argv[ 2 ] );
1237                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1238                                 c->log, c->cr_msg, 0 );
1239                         return 1;
1240                 }
1241
1242                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1243                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1244                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1245                                 "AttributeDescription \"%s\" "
1246                                 "must be a subtype of \"labeledURI\"",
1247                                 c->argv[ 2 ] );
1248                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1249                                 c->log, c->cr_msg, 0 );
1250                         return 1;
1251                 }
1252
1253                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1254                         *dlip; dlip = &(*dlip)->dli_next )
1255                 {
1256                         /* The same URL attribute / member attribute pair
1257                          * cannot be repeated */
1258                         if ( (*dlip)->dli_ad == ad && (*dlip)->dli_member_ad == member_ad ) {
1259                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1260                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1261                                         "URL attributeDescription \"%s\" already mapped.\n",
1262                                         ad->ad_cname.bv_val );
1263                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1264                                         c->log, c->cr_msg, 0 );
1265 #if 0
1266                                 /* make it a warning... */
1267                                 return 1;
1268 #endif
1269                         }
1270                 }
1271
1272                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1273
1274                 (*dlip)->dli_oc = oc;
1275                 (*dlip)->dli_ad = ad;
1276                 (*dlip)->dli_member_ad = member_ad;
1277
1278                 rc = dynlist_build_def_filter( *dlip );
1279
1280                 } break;
1281
1282         default:
1283                 rc = 1;
1284                 break;
1285         }
1286
1287         return rc;
1288 }
1289 #endif
1290
1291 static int
1292 dynlist_db_open(
1293         BackendDB       *be,
1294         ConfigReply     *cr )
1295 {
1296         slap_overinst           *on = (slap_overinst *) be->bd_info;
1297         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1298         ObjectClass             *oc = NULL;
1299         AttributeDescription    *ad = NULL;
1300         const char      *text;
1301         int rc;
1302
1303         if ( dli == NULL ) {
1304                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1305                 on->on_bi.bi_private = (void *)dli;
1306         }
1307
1308         for ( ; dli; dli = dli->dli_next ) {
1309                 if ( dli->dli_oc == NULL ) {
1310                         if ( oc == NULL ) {
1311                                 oc = oc_find( "groupOfURLs" );
1312                                 if ( oc == NULL ) {
1313                                         sprintf( cr->msg, "unable to fetch objectClass \"groupOfURLs\"" );
1314                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1315                                         return 1;
1316                                 }
1317                         }
1318
1319                         dli->dli_oc = oc;
1320                 }
1321
1322                 if ( dli->dli_ad == NULL ) {
1323                         if ( ad == NULL ) {
1324                                 rc = slap_str2ad( "memberURL", &ad, &text );
1325                                 if ( rc != LDAP_SUCCESS ) {
1326                                         sprintf( cr->msg, "unable to fetch attributeDescription \"memberURL\": %d (%s)",
1327                                                 rc, text );
1328                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1329                                         return 1;
1330                                 }
1331                         }
1332
1333                         dli->dli_ad = ad;
1334                 }
1335
1336                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1337                         rc = dynlist_build_def_filter( dli );
1338                         if ( rc != 0 ) {
1339                                 return rc;
1340                         }
1341                 }
1342         }
1343
1344         rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text );
1345         if ( rc != LDAP_SUCCESS ) {
1346                 sprintf( cr->msg, "unable to fetch attributeDescription \"dgIdentity\": %d (%s)",
1347                         rc, text );
1348                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1349                 /* Just a warning */
1350         }
1351
1352         return 0;
1353 }
1354
1355 static int
1356 dynlist_db_destroy(
1357         BackendDB       *be,
1358         ConfigReply     *cr )
1359 {
1360         slap_overinst   *on = (slap_overinst *) be->bd_info;
1361
1362         if ( on->on_bi.bi_private ) {
1363                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1364                                 *dli_next;
1365
1366                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1367                         dli_next = dli->dli_next;
1368
1369                         ch_free( dli->dli_default_filter.bv_val );
1370                         ch_free( dli );
1371                 }
1372         }
1373
1374         return 0;
1375 }
1376
1377 static slap_overinst    dynlist = { { NULL } };
1378 #ifdef TAKEOVER_DYNGROUP
1379 static char             *obsolete_names[] = {
1380         "dyngroup",
1381         NULL
1382 };
1383 #endif
1384
1385 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1386 static
1387 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1388 int
1389 dynlist_initialize(void)
1390 {
1391 #ifndef OL_2_2_COMPAT
1392         int     rc = 0;
1393 #endif
1394
1395         dynlist.on_bi.bi_type = "dynlist";
1396
1397 #ifdef TAKEOVER_DYNGROUP
1398         /* makes dynlist incompatible with dyngroup */
1399         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1400 #endif
1401
1402 #ifdef OL_2_2_COMPAT
1403         dynlist.on_bi.bi_db_config = dynlist_db_config;
1404 #else
1405         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1406 #endif
1407         dynlist.on_bi.bi_db_open = dynlist_db_open;
1408         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1409
1410         dynlist.on_response = dynlist_response;
1411
1412 #ifndef OL_2_2_COMPAT
1413         dynlist.on_bi.bi_cf_ocs = dlocs;
1414
1415         rc = config_register_schema( dlcfg, dlocs );
1416         if ( rc ) {
1417                 return rc;
1418         }
1419 #endif
1420
1421         return overlay_register( &dynlist );
1422 }
1423
1424 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1425 int
1426 init_module( int argc, char *argv[] )
1427 {
1428         return dynlist_initialize();
1429 }
1430 #endif
1431
1432 #endif /* SLAPD_OVER_DYNLIST */