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 typedef struct dynlist_info_t {
  62         ObjectClass             *dli_oc;
  63         AttributeDescription    *dli_ad;
  64         AttributeDescription    *dli_member_ad;
  65         struct berval           dli_default_filter;
  66         struct dynlist_info_t   *dli_next;
  67 } dynlist_info_t;
  68
  69 static dynlist_info_t *
  70 dynlist_is_dynlist( Operation *op, SlapReply *rs )
  71 {
  72         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
  73         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
  74
  75         Attribute       *a;
  76
  77         a = attrs_find( rs->sr_entry->e_attrs, slap_schema.si_ad_objectClass );
  78         if ( a == NULL ) {
  79                 /* FIXME: objectClass must be present; for non-storage
  80                  * backends, like back-ldap, it needs to be added
  81                  * to the requested attributes */
  82                 return NULL;
  83         }
  84
  85         for ( ; dli; dli = dli->dli_next ) {
  86                 if ( value_find_ex( slap_schema.si_ad_objectClass,
  87                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  88                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  89                                 a->a_nvals, &dli->dli_oc->soc_cname,
  90                                 op->o_tmpmemctx ) == 0 )
  91                 {
  92                         return dli;
  93                 }
  94         }
  95
  96         return NULL;
  97 }
  98
  99 static int
 100 dynlist_make_filter( Operation *op, struct berval *oldf, struct berval *newf )
 101 {
 102         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 103         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 104
 105         char            *ptr;
 106
 107         assert( oldf != NULL );
 108         assert( newf != NULL );
 109         assert( !BER_BVISNULL( oldf ) );
 110         assert( !BER_BVISEMPTY( oldf ) );
 111
 112         newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" )
 113                 + dli->dli_oc->soc_cname.bv_len + oldf->bv_len;
 114         newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx );
 115         if ( newf->bv_val == NULL ) {
 116                 return -1;
 117         }
 118         ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" );
 119         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 120         ptr = lutil_strcopy( ptr, "))" );
 121         ptr = lutil_strcopy( ptr, oldf->bv_val );
 122         ptr = lutil_strcopy( ptr, ")" );
 123         newf->bv_len = ptr - newf->bv_val;
 124
 125         return 0;
 126 }
 127
 128 typedef struct dynlist_sc_t {
 129         dynlist_info_t    *dlc_dli;
 130         Entry           *dlc_e;
 131 } dynlist_sc_t;
 132
 133 static int
 134 dynlist_sc_update( Operation *op, SlapReply *rs )
 135 {
 136         Entry                   *e;
 137         Attribute               *a;
 138         int                     opattrs,
 139                                 userattrs;
 140         AccessControlState      acl_state = ACL_STATE_INIT;
 141
 142         dynlist_sc_t            *dlc;
 143
 144         if ( rs->sr_type != REP_SEARCH ) {
 145                 return 0;
 146         }
 147
 148         dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 149         e = dlc->dlc_e;
 150
 151         assert( e != NULL );
 152         assert( rs->sr_entry != NULL );
 153
 154         /* test access to entry */
 155         if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 156                                 NULL, ACL_READ, NULL ) )
 157         {
 158                 goto done;
 159         }
 160
 161         if ( dlc->dlc_dli->dli_member_ad ) {
 162
 163                 /* if access allowed, try to add values, emulating permissive
 164                  * control to silently ignore duplicates */
 165                 if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 166                                         NULL, ACL_READ, NULL ) )
 167                 {
 168                         Modification    mod;
 169                         const char      *text = NULL;
 170                         char            textbuf[1024];
 171                         struct berval   vals[ 2 ], nvals[ 2 ];
 172
 173                         vals[ 0 ] = rs->sr_entry->e_name;
 174                         BER_BVZERO( &vals[ 1 ] );
 175                         nvals[ 0 ] = rs->sr_entry->e_nname;
 176                         BER_BVZERO( &nvals[ 1 ] );
 177
 178                         mod.sm_op = LDAP_MOD_ADD;
 179                         mod.sm_desc = dlc->dlc_dli->dli_member_ad;
 180                         mod.sm_type = dlc->dlc_dli->dli_member_ad->ad_cname;
 181                         mod.sm_values = vals;
 182                         mod.sm_nvalues = nvals;
 183
 184                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 185                                         &text, textbuf, sizeof( textbuf ) );
 186                 }
 187
 188                 goto done;
 189         }
 190
 191 #ifndef SLAP_OPATTRS
 192         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 193         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 194 #else /* SLAP_OPATTRS */
 195         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 196         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 197 #endif /* SLAP_OPATTRS */
 198
 199         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 200                 BerVarray       vals, nvals = NULL;
 201                 int             i, j,
 202                                 is_oc = a->a_desc == slap_schema.si_ad_objectClass;
 203
 204                 /* if attribute is not requested, skip it */
 205                 if ( rs->sr_attrs == NULL ) {
 206                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 207                                 continue;
 208                         }
 209
 210                 } else {
 211                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 212                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 213                                 {
 214                                         continue;
 215                                 }
 216
 217                         } else {
 218                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 219                                 {
 220                                         continue;
 221                                 }
 222                         }
 223                 }
 224
 225                 /* test access to attribute */
 226                 if ( op->ors_attrsonly ) {
 227                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 228                                                 ACL_READ, &acl_state ) )
 229                         {
 230                                 continue;
 231                         }
 232                 }
 233
 234                 /* single-value check: keep first only */
 235                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 236                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 237                                 continue;
 238                         }
 239                 }
 240
 241                 /* test access to attribute */
 242                 for ( i = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ )
 243                         /* just count */ ;
 244
 245                 vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 246                 if ( a->a_nvals != a->a_vals ) {
 247                         nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 248                 }
 249
 250                 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
 251                         if ( is_oc ) {
 252                                 ObjectClass     *soc = oc_bvfind( &a->a_vals[i] );
 253
 254                                 if ( soc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 255                                         continue;
 256                                 }
 257                         }
 258
 259                         if ( access_allowed( op, rs->sr_entry, a->a_desc,
 260                                                 &a->a_nvals[i], ACL_READ, &acl_state ) )
 261                         {
 262                                 vals[j] = a->a_vals[i];
 263                                 if ( nvals ) {
 264                                         nvals[j] = a->a_nvals[i];
 265                                 }
 266                                 j++;
 267                         }
 268                 }
 269
 270                 /* if access allowed, try to add values, emulating permissive
 271                  * control to silently ignore duplicates */
 272                 if ( j != 0 ) {
 273                         Modification    mod;
 274                         const char      *text = NULL;
 275                         char            textbuf[1024];
 276
 277                         BER_BVZERO( &vals[j] );
 278                         if ( nvals ) {
 279                                 BER_BVZERO( &nvals[j] );
 280                         }
 281
 282                         mod.sm_op = LDAP_MOD_ADD;
 283                         mod.sm_desc = a->a_desc;
 284                         mod.sm_type = a->a_desc->ad_cname;
 285                         mod.sm_values = vals;
 286                         mod.sm_nvalues = nvals;
 287
 288                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 289                                         &text, textbuf, sizeof( textbuf ) );
 290                 }
 291
 292                 op->o_tmpfree( vals, op->o_tmpmemctx );
 293                 if ( nvals ) {
 294                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 295                 }
 296         }
 297
 298 done:;
 299         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 300                 entry_free( rs->sr_entry );
 301                 rs->sr_entry = NULL;
 302                 rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
 303         }
 304
 305         return 0;
 306 }
 307
 308 static int
 309 dynlist_send_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 310 {
 311         Attribute       *a;
 312         slap_callback   cb;
 313         Operation       o = *op;
 314         SlapReply       r = { REP_SEARCH };
 315         struct berval   *url;
 316         Entry           *e;
 317         slap_mask_t     e_flags;
 318         int             opattrs,
 319                         userattrs;
 320         dynlist_sc_t    dlc = { 0 };
 321
 322         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 323         if ( a == NULL ) {
 324                 /* FIXME: error? */
 325                 return SLAP_CB_CONTINUE;
 326         }
 327
 328         e = entry_dup( rs->sr_entry );
 329         e_flags = rs->sr_flags | ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 330
 331         dlc.dlc_e = e;
 332         dlc.dlc_dli = dli;
 333         cb.sc_private = &dlc;
 334         cb.sc_response = dynlist_sc_update;
 335         cb.sc_cleanup = NULL;
 336         cb.sc_next = NULL;
 337
 338         o.o_callback = &cb;
 339         o.ors_deref = LDAP_DEREF_NEVER;
 340         o.ors_limit = NULL;
 341         o.ors_tlimit = SLAP_NO_LIMIT;
 342         o.ors_slimit = SLAP_NO_LIMIT;
 343
 344 #ifndef SLAP_OPATTRS
 345         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 346         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 347 #else /* SLAP_OPATTRS */
 348         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 349         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 350 #endif /* SLAP_OPATTRS */
 351
 352         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 353                 LDAPURLDesc     *lud = NULL;
 354                 int             i, j;
 355                 struct berval   dn;
 356                 int             rc;
 357
 358                 BER_BVZERO( &o.o_req_dn );
 359                 BER_BVZERO( &o.o_req_ndn );
 360                 o.ors_filter = NULL;
 361                 o.ors_attrs = NULL;
 362                 BER_BVZERO( &o.ors_filterstr );
 363
 364                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 365                         /* FIXME: error? */
 366                         continue;
 367                 }
 368
 369                 if ( lud->lud_host != NULL ) {
 370                         /* FIXME: host not allowed; reject as illegal? */
 371                         Debug( LDAP_DEBUG_ANY, "dynlist_send_entry(\"%s\"): "
 372                                 "illegal URI \"%s\"\n",
 373                                 e->e_name.bv_val, url->bv_val, 0 );
 374                         goto cleanup;
 375                 }
 376
 377                 if ( lud->lud_dn == NULL ) {
 378                         /* note that an empty base is not honored in terms
 379                          * of defaultSearchBase, because select_backend()
 380                          * is not aware of the defaultSearchBase option;
 381                          * this can be useful in case of a database serving
 382                          * the empty suffix */
 383                         BER_BVSTR( &dn, "" );
 384
 385                 } else {
 386                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 387                 }
 388                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 389                 if ( rc != LDAP_SUCCESS ) {
 390                         /* FIXME: error? */
 391                         goto cleanup;
 392                 }
 393                 o.ors_scope = lud->lud_scope;
 394
 395                 if ( dli->dli_member_ad != NULL ) {
 396                         /* if ( lud->lud_attrs != NULL ),
 397                          * the URL should be ignored */
 398                         o.ors_attrs = slap_anlist_no_attrs;
 399
 400                 } else if ( lud->lud_attrs == NULL ) {
 401                         o.ors_attrs = rs->sr_attrs;
 402
 403                 } else {
 404                         for ( i = 0; lud->lud_attrs[i]; i++)
 405                                 /* just count */ ;
 406
 407                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 408                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 409                                 const char      *text = NULL;
 410
 411                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 412                                 o.ors_attrs[j].an_desc = NULL;
 413                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 414                                 /* FIXME: ignore errors... */
 415
 416                                 if ( rs->sr_attrs == NULL ) {
 417                                         if ( o.ors_attrs[j].an_desc != NULL &&
 418                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 419                                         {
 420                                                 continue;
 421                                         }
 422
 423                                 } else {
 424                                         if ( o.ors_attrs[j].an_desc != NULL &&
 425                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 426                                         {
 427                                                 if ( !opattrs && !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 428                                                 {
 429                                                         continue;
 430                                                 }
 431
 432                                         } else {
 433                                                 if ( !userattrs &&
 434                                                                 o.ors_attrs[j].an_desc != NULL &&
 435                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 436                                                 {
 437                                                         continue;
 438                                                 }
 439                                         }
 440                                 }
 441
 442                                 j++;
 443                         }
 444
 445                         if ( j == 0 ) {
 446                                 goto cleanup;
 447                         }
 448
 449                         BER_BVZERO( &o.ors_attrs[j].an_name );
 450                 }
 451
 452                 if ( lud->lud_filter == NULL ) {
 453                         ber_dupbv_x( &o.ors_filterstr,
 454                                         &dli->dli_default_filter, op->o_tmpmemctx );
 455
 456                 } else {
 457                         struct berval   flt;
 458                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 459                         if ( dynlist_make_filter( op, &flt, &o.ors_filterstr ) ) {
 460                                 /* error */
 461                                 goto cleanup;
 462                         }
 463                 }
 464                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 465                 if ( o.ors_filter == NULL ) {
 466                         goto cleanup;
 467                 }
 468
 469                 o.o_bd = select_backend( &o.o_req_ndn, 0, 1 );
 470                 if ( o.o_bd && o.o_bd->be_search ) {
 471 #ifdef SLAP_OPATTRS
 472                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 473 #endif /* SLAP_OPATTRS */
 474                         (void)o.o_bd->be_search( &o, &r );
 475                 }
 476
 477 cleanup:;
 478                 if ( o.ors_filter ) {
 479                         filter_free_x( &o, o.ors_filter );
 480                 }
 481                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 482                                 && o.ors_attrs != slap_anlist_no_attrs )
 483                 {
 484                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 485                 }
 486                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 487                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 488                 }
 489                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 490                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 491                 }
 492                 assert( BER_BVISNULL( &o.ors_filterstr )
 493                         || o.ors_filterstr.bv_val != lud->lud_filter );
 494                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 495                 ldap_free_urldesc( lud );
 496         }
 497
 498         rs->sr_entry = e;
 499         rs->sr_flags = e_flags;
 500
 501         return SLAP_CB_CONTINUE;
 502 }
 503
 504 static int
 505 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 506 {
 507         /* save the entry in the private field of the callback,
 508          * so it doesn't get freed (it's temporary!) */
 509         if ( rs->sr_entry != NULL ) {
 510                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 511                 dlc->dlc_e = rs->sr_entry;
 512                 rs->sr_entry = NULL;
 513         }
 514
 515         return 0;
 516 }
 517
 518 static int
 519 dynlist_compare( Operation *op, SlapReply *rs )
 520 {
 521         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 522         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 523
 524         for ( ; dli != NULL; dli = dli->dli_next ) {
 525                 if ( op->oq_compare.rs_ava->aa_desc == dli->dli_member_ad ) {
 526                         /* This compare is for one of the attributes we're
 527                          * interested in. We'll use slapd's existing dyngroup
 528                          * evaluator to get the answer we want.
 529                          */
 530                         int cache = op->o_do_not_cache;
 531
 532                         op->o_do_not_cache = 1;
 533                         rs->sr_err = backend_group( op, NULL, &op->o_req_ndn,
 534                                 &op->oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 535                         op->o_do_not_cache = cache;
 536                         switch ( rs->sr_err ) {
 537                         case LDAP_SUCCESS:
 538                                 rs->sr_err = LDAP_COMPARE_TRUE;
 539                                 break;
 540
 541                         case LDAP_NO_SUCH_OBJECT:
 542                                 /* NOTE: backend_group() returns noSuchObject
 543                                  * if op_ndn does not exist; however, since
 544                                  * dynamic list expansion means that the
 545                                  * member attribute is virtually present, the
 546                                  * non-existence of the asserted value implies
 547                                  * the assertion is FALSE rather than
 548                                  * UNDEFINED */
 549                                 rs->sr_err = LDAP_COMPARE_FALSE;
 550                                 break;
 551                         }
 552
 553                         return SLAP_CB_CONTINUE;
 554                 }
 555         }
 556
 557         dli = (dynlist_info_t *)on->on_bi.bi_private;
 558         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 559                 Attribute       *a;
 560                 slap_callback   cb;
 561                 Operation       o = *op;
 562                 SlapReply       r = { REP_SEARCH };
 563                 AttributeName   an[2];
 564                 int             rc;
 565                 dynlist_sc_t    dlc = { 0 };
 566                 Entry           *e;
 567
 568                 int cache = op->o_do_not_cache;
 569                 struct berval   op_dn = op->o_dn,
 570                                 op_ndn = op->o_ndn;
 571                 BackendDB       *op_bd = op->o_bd;
 572
 573                 /* fetch the entry as rootdn (a hack to see if it exists
 574                  * and if it has the right objectClass) */
 575                 op->o_do_not_cache = 1;
 576                 op->o_dn = op->o_bd->be_rootdn;
 577                 op->o_ndn = op->o_bd->be_rootndn;
 578                 op->o_bd = select_backend( &op->o_req_ndn, 0, 0 );
 579
 580                 r.sr_err = be_entry_get_rw( op, &op->o_req_ndn,
 581                         dli->dli_oc, NULL, 0, &e );
 582                 if ( e != NULL ) {
 583                         be_entry_release_r( op, e );
 584                 }
 585                 op->o_do_not_cache = cache;
 586                 op->o_dn = op_dn;
 587                 op->o_ndn = op_ndn;
 588                 op->o_bd = op_bd;
 589                 if ( r.sr_err != LDAP_SUCCESS ) {
 590                         continue;
 591                 }
 592
 593                 /* if the entry has the right objectClass, generate
 594                  * the dynamic list and compare */
 595                 dlc.dlc_dli = dli;
 596                 cb.sc_private = &dlc;
 597                 cb.sc_response = dynlist_sc_save_entry;
 598                 cb.sc_cleanup = NULL;
 599                 cb.sc_next = NULL;
 600                 o.o_callback = &cb;
 601
 602                 o.o_tag = LDAP_REQ_SEARCH;
 603                 o.ors_limit = NULL;
 604                 o.ors_tlimit = SLAP_NO_LIMIT;
 605                 o.ors_slimit = SLAP_NO_LIMIT;
 606
 607                 o.o_bd = select_backend( &o.o_req_ndn, 0, 1 );
 608                 if ( !o.o_bd || !o.o_bd->be_search ) {
 609                         return SLAP_CB_CONTINUE;
 610                 }
 611
 612                 BER_BVSTR( &o.ors_filterstr, "(objectClass=*)" );
 613                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 614                 if ( o.ors_filter == NULL ) {
 615                         /* FIXME: error? */
 616                         return SLAP_CB_CONTINUE;
 617                 }
 618
 619                 o.ors_scope = LDAP_SCOPE_BASE;
 620                 o.ors_deref = LDAP_DEREF_NEVER;
 621                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 622                 an[0].an_desc = op->orc_ava->aa_desc;
 623                 BER_BVZERO( &an[1].an_name );
 624                 o.ors_attrs = an;
 625                 o.ors_attrsonly = 0;
 626
 627                 o.o_acl_priv = ACL_COMPARE;
 628
 629                 rc = o.o_bd->be_search( &o, &r );
 630                 filter_free_x( &o, o.ors_filter );
 631
 632                 if ( rc != 0 ) {
 633                         return rc;
 634                 }
 635
 636                 if ( dlc.dlc_e != NULL ) {
 637                         r.sr_entry = dlc.dlc_e;
 638                 }
 639
 640                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 641                         /* error? */
 642                         return SLAP_CB_CONTINUE;
 643                 }
 644
 645                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 646                         a != NULL;
 647                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 648                 {
 649                         /* if we're here, we got a match... */
 650                         rs->sr_err = LDAP_COMPARE_FALSE;
 651
 652                         if ( value_find_ex( op->orc_ava->aa_desc,
 653                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 654                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 655                                 a->a_nvals, &op->orc_ava->aa_value, op->o_tmpmemctx ) == 0 )
 656                         {
 657                                 rs->sr_err = LDAP_COMPARE_TRUE;
 658                                 break;
 659                         }
 660                 }
 661
 662                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 663                         entry_free( r.sr_entry );
 664                 }
 665         }
 666
 667         return SLAP_CB_CONTINUE;
 668 }
 669
 670 static int
 671 dynlist_response( Operation *op, SlapReply *rs )
 672 {
 673         dynlist_info_t  *dli;
 674
 675         switch ( op->o_tag ) {
 676         case LDAP_REQ_SEARCH:
 677                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 678                 {
 679                         dli = dynlist_is_dynlist( op, rs );
 680                         if ( dli != NULL ) {
 681                                 return dynlist_send_entry( op, rs, dli );
 682                         }
 683                 }
 684                 break;
 685
 686         case LDAP_REQ_COMPARE:
 687                 switch ( rs->sr_err ) {
 688                 /* NOTE: we waste a few cycles running the dynamic list
 689                  * also when the result is FALSE, which occurs if the
 690                  * dynamic entry itself contains the AVA attribute  */
 691                 /* FIXME: this approach is less than optimal; a dedicated
 692                  * compare op should be implemented, that fetches the
 693                  * entry, checks if it has the appropriate objectClass
 694                  * and, in case, runs a compare thru all the URIs,
 695                  * stopping at the first positive occurrence; see ITS#3756 */
 696                 case LDAP_COMPARE_FALSE:
 697                 case LDAP_NO_SUCH_ATTRIBUTE:
 698                         return dynlist_compare( op, rs );
 699                 }
 700                 break;
 701
 702         default:
 703                 break;
 704         }
 705
 706         return SLAP_CB_CONTINUE;
 707 }
 708
 709 static int
 710 dynlist_build_def_filter( dynlist_info_t *dli )
 711 {
 712         char    *ptr;
 713
 714         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 715                 + dli->dli_oc->soc_cname.bv_len;
 716         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 717         if ( dli->dli_default_filter.bv_val == NULL ) {
 718                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 719                         0, 0, 0 );
 720                 return -1;
 721         }
 722
 723         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 724         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 725         ptr = lutil_strcopy( ptr, "))" );
 726
 727         assert( dli->dli_default_filter.bv_len == ptr - dli->dli_default_filter.bv_val );
 728
 729         return 0;
 730 }
 731
 732 #ifdef OL_2_2_COMPAT
 733 static int
 734 dynlist_db_config(
 735         BackendDB       *be,
 736         const char      *fname,
 737         int             lineno,
 738         int             argc,
 739         char            **argv )
 740 {
 741         slap_overinst   *on = (slap_overinst *)be->bd_info;
 742
 743         int             rc = 0;
 744
 745         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 746                 dynlist_info_t          **dlip;
 747                 ObjectClass             *oc;
 748                 AttributeDescription    *ad = NULL,
 749                                         *member_ad = NULL;
 750                 const char              *text;
 751
 752                 if ( argc < 3 || argc > 4 ) {
 753                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 754                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 755                                 "invalid arg number #%d.\n",
 756                                 fname, lineno, argc );
 757                         return 1;
 758                 }
 759
 760                 oc = oc_find( argv[1] );
 761                 if ( oc == NULL ) {
 762                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 763                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 764                                 "unable to find ObjectClass \"%s\"\n",
 765                                 fname, lineno, argv[ 1 ] );
 766                         return 1;
 767                 }
 768
 769                 rc = slap_str2ad( argv[2], &ad, &text );
 770                 if ( rc != LDAP_SUCCESS ) {
 771                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 772                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 773                                 "unable to find AttributeDescription \"%s\"\n",
 774                                 fname, lineno, argv[2] );
 775                         return 1;
 776                 }
 777
 778                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 779                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 780                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 781                                 "AttributeDescription \"%s\" "
 782                                 "must be a subtype of \"labeledURI\"\n",
 783                                 fname, lineno, argv[2] );
 784                         return 1;
 785                 }
 786
 787                 if ( argc == 4 ) {
 788                         rc = slap_str2ad( argv[3], &member_ad, &text );
 789                         if ( rc != LDAP_SUCCESS ) {
 790                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 791                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 792                                         "unable to find AttributeDescription \"%s\"\n",
 793                                         fname, lineno, argv[3] );
 794                                 return 1;
 795                         }
 796                 }
 797
 798                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 799                         *dlip; dlip = &(*dlip)->dli_next )
 800                 {
 801                         /* The check on objectClass may be relaxed */
 802 #if 0
 803                         if ( (*dlip)->dli_oc == oc ) {
 804                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 805                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 806                                         "objectClass \"%s\" already mapped.\n",
 807                                         fname, lineno, oc->soc_cname.bv_val );
 808                                 return 1;
 809                         }
 810 #endif
 811
 812                         if ( (*dlip)->dli_ad == ad ) {
 813                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 814                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 815                                         "URL attributeDescription \"%s\" already mapped.\n",
 816                                         fname, lineno, ad->ad_cname.bv_val );
 817                                 return 1;
 818                         }
 819
 820                         if ( member_ad != NULL && (*dlip)->dli_member_ad == member_ad ) {
 821                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 822                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
 823                                         "member attributeDescription \"%s\" already mapped.\n",
 824                                         fname, lineno, member_ad->ad_cname.bv_val );
 825                                 return 1;
 826                         }
 827                 }
 828
 829                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 830                 (*dlip)->dli_oc = oc;
 831                 (*dlip)->dli_ad = ad;
 832                 (*dlip)->dli_member_ad = member_ad;
 833
 834                 if ( dynlist_build_def_filter( *dlip ) ) {
 835                         ch_free( *dlip );
 836                         *dlip = NULL;
 837                         return 1;
 838                 }
 839
 840         /* allow dyngroup syntax */
 841         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
 842                 dynlist_info_t          **dlip;
 843                 ObjectClass             *oc;
 844                 AttributeDescription    *ad = NULL,
 845                                         *member_ad = NULL;
 846                 const char              *text;
 847
 848                 if ( argc != 3 ) {
 849                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 850                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 851                                 "invalid arg number #%d.\n",
 852                                 fname, lineno, argc );
 853                         return 1;
 854                 }
 855
 856                 oc = oc_find( "groupOfURLs" );
 857                 if ( oc == NULL ) {
 858                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 859                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 860                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
 861                                 fname, lineno, 0 );
 862                         return 1;
 863                 }
 864
 865                 rc = slap_str2ad( argv[1], &member_ad, &text );
 866                 if ( rc != LDAP_SUCCESS ) {
 867                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 868                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 869                                 "unable to find AttributeDescription \"%s\"\n",
 870                                 fname, lineno, argv[1] );
 871                         return 1;
 872                 }
 873
 874                 rc = slap_str2ad( argv[2], &ad, &text );
 875                 if ( rc != LDAP_SUCCESS ) {
 876                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 877                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 878                                 "unable to find AttributeDescription \"%s\"\n",
 879                                 fname, lineno, argv[2] );
 880                         return 1;
 881                 }
 882
 883                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 884                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 885                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 886                                 "AttributeDescription \"%s\" "
 887                                 "must be a subtype of \"labeledURI\"\n",
 888                                 fname, lineno, argv[2] );
 889                         return 1;
 890                 }
 891
 892
 893                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 894                         *dlip; dlip = &(*dlip)->dli_next )
 895                 {
 896 #if 0
 897                         /* The check on objectClass may be relaxed */
 898                         if ( (*dlip)->dli_oc == oc ) {
 899                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 900                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 901                                         "objectClass \"%s\" already mapped.\n",
 902                                         fname, lineno, oc->soc_cname.bv_val );
 903                                 return 1;
 904                         }
 905 #endif
 906
 907                         if ( (*dlip)->dli_ad == ad ) {
 908                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 909                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 910                                         "URL attributeDescription \"%s\" already mapped.\n",
 911                                         fname, lineno, ad->ad_cname.bv_val );
 912                                 return 1;
 913                         }
 914
 915                         if ( member_ad != NULL && (*dlip)->dli_member_ad == member_ad ) {
 916                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 917                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
 918                                         "member attributeDescription \"%s\" already mapped.\n",
 919                                         fname, lineno, member_ad->ad_cname.bv_val );
 920                                 return 1;
 921                         }
 922                 }
 923
 924                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 925                 (*dlip)->dli_oc = oc;
 926                 (*dlip)->dli_ad = ad;
 927                 (*dlip)->dli_member_ad = member_ad;
 928
 929                 if ( dynlist_build_def_filter( *dlip ) ) {
 930                         ch_free( *dlip );
 931                         *dlip = NULL;
 932                         return 1;
 933                 }
 934
 935         } else {
 936                 rc = SLAP_CONF_UNKNOWN;
 937         }
 938
 939         return rc;
 940 }
 941
 942 #else
 943 enum {
 944         DL_ATTRSET = 1,
 945         DL_ATTRPAIR,
 946         DL_ATTRPAIR_COMPAT,
 947         DL_LAST
 948 };
 949
 950 static ConfigDriver     dl_cfgen;
 951
 952 static ConfigTable dlcfg[] = {
 953         { "dynlist-attrset", "group-oc> <URL-ad> <member-ad",
 954                 3, 4, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
 955                 "( OLcfgOvAt:8.1 NAME 'olcDLattrSet' "
 956                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
 957                         "EQUALITY caseIgnoreMatch "
 958                         "SYNTAX OMsDirectoryString "
 959                         "X-ORDERED 'VALUES' )",
 960                         NULL, NULL },
 961         { "dynlist-attrpair", "member-ad> <URL-ad",
 962                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
 963                         NULL, NULL, NULL },
 964 #ifdef TAKEOVER_DYNGROUP
 965         { "attrpair", "member-ad> <URL-ad",
 966                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
 967                         NULL, NULL, NULL },
 968 #endif
 969         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
 970 };
 971
 972 static ConfigOCs dlocs[] = {
 973         { "( OLcfgOvOc:8.1 "
 974                 "NAME 'olcDynamicList' "
 975                 "DESC 'Dynamic list configuration' "
 976                 "SUP olcOverlayConfig "
 977                 "MAY olcDLattrSet )",
 978                 Cft_Overlay, dlcfg, NULL, NULL },
 979         { NULL, 0, NULL }
 980 };
 981
 982 static int
 983 dl_cfgen( ConfigArgs *c )
 984 {
 985         slap_overinst   *on = (slap_overinst *)c->bi;
 986         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 987
 988         int             rc = 0, i;
 989
 990         if ( c->op == SLAP_CONFIG_EMIT ) {
 991                 switch( c->type ) {
 992                 case DL_ATTRSET:
 993                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
 994                                 struct berval   bv;
 995                                 char            *ptr = c->msg;
 996
 997                                 assert( dli->dli_oc != NULL );
 998                                 assert( dli->dli_ad != NULL );
 999
1000                                 ptr += snprintf( c->msg, sizeof( c->msg ),
1001                                         SLAP_X_ORDERED_FMT "%s %s", i,
1002                                         dli->dli_oc->soc_cname.bv_val,
1003                                         dli->dli_ad->ad_cname.bv_val );
1004
1005                                 if ( dli->dli_member_ad != NULL ) {
1006                                         ptr[ 0 ] = ' ';
1007                                         ptr++;
1008                                         ptr = lutil_strcopy( ptr, dli->dli_member_ad->ad_cname.bv_val );
1009                                 }
1010
1011                                 bv.bv_val = c->msg;
1012                                 bv.bv_len = ptr - bv.bv_val;
1013                                 value_add_one( &c->rvalue_vals, &bv );
1014                         }
1015                         break;
1016
1017                 case DL_ATTRPAIR_COMPAT:
1018                 case DL_ATTRPAIR:
1019                         rc = 1;
1020                         break;
1021
1022                 default:
1023                         rc = 1;
1024                         break;
1025                 }
1026
1027                 return rc;
1028
1029         } else if ( c->op == LDAP_MOD_DELETE ) {
1030                 switch( c->type ) {
1031                 case DL_ATTRSET:
1032                         if ( c->valx < 0 ) {
1033                                 dynlist_info_t  *dli_next;
1034
1035                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1036                                         dli_next = dli->dli_next;
1037
1038                                         ch_free( dli->dli_default_filter.bv_val );
1039                                         ch_free( dli );
1040                                 }
1041
1042                                 on->on_bi.bi_private = NULL;
1043
1044                         } else {
1045                                 dynlist_info_t  **dlip;
1046
1047                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1048                                         i < c->valx; i++ )
1049                                 {
1050                                         if ( *dlip == NULL ) {
1051                                                 return 1;
1052                                         }
1053                                         dlip = &(*dlip)->dli_next;
1054                                 }
1055
1056                                 dli = *dlip;
1057                                 *dlip = dli->dli_next;
1058                                 ch_free( dli->dli_default_filter.bv_val );
1059                                 ch_free( dli );
1060
1061                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1062                         }
1063                         break;
1064
1065                 case DL_ATTRPAIR_COMPAT:
1066                 case DL_ATTRPAIR:
1067                         rc = 1;
1068                         break;
1069
1070                 default:
1071                         rc = 1;
1072                         break;
1073                 }
1074
1075                 return 1;       /* FIXME */
1076         }
1077
1078         switch( c->type ) {
1079         case DL_ATTRSET: {
1080                 dynlist_info_t          **dlip,
1081                                         *dli_next = NULL;
1082                 ObjectClass             *oc = NULL;
1083                 AttributeDescription    *ad = NULL,
1084                                         *member_ad = NULL;
1085                 const char              *text;
1086
1087                 oc = oc_find( c->argv[ 1 ] );
1088                 if ( oc == NULL ) {
1089                         snprintf( c->msg, sizeof( c->msg ),
1090                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1091                                 "unable to find ObjectClass \"%s\"",
1092                                 c->argv[ 1 ] );
1093                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1094                                 c->log, c->msg, 0 );
1095                         return 1;
1096                 }
1097
1098                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1099                 if ( rc != LDAP_SUCCESS ) {
1100                         snprintf( c->msg, sizeof( c->msg ),
1101                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1102                                 "unable to find AttributeDescription \"%s\"",
1103                                 c->argv[ 2 ] );
1104                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1105                                 c->log, c->msg, 0 );
1106                         return 1;
1107                 }
1108
1109                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1110                         snprintf( c->msg, sizeof( c->msg ),
1111                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1112                                 "AttributeDescription \"%s\" "
1113                                 "must be a subtype of \"labeledURI\"",
1114                                 c->argv[ 2 ] );
1115                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1116                                 c->log, c->msg, 0 );
1117                         return 1;
1118                 }
1119
1120                 if ( c->argc == 4 ) {
1121                         rc = slap_str2ad( c->argv[ 3 ], &member_ad, &text );
1122                         if ( rc != LDAP_SUCCESS ) {
1123                                 snprintf( c->msg, sizeof( c->msg ),
1124                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1125                                         "unable to find AttributeDescription \"%s\"\n",
1126                                         c->argv[ 3 ] );
1127                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1128                                         c->log, c->msg, 0 );
1129                                 return 1;
1130                         }
1131                 }
1132
1133                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1134                         *dlip; dlip = &(*dlip)->dli_next )
1135                 {
1136                         /* The check on objectClass may be relaxed */
1137 #if 0
1138                         if ( (*dlip)->dli_oc == oc ) {
1139                                 snprintf( c->msg, sizeof( c->msg ),
1140                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1141                                         "objectClass \"%s\" already mapped.\n",
1142                                         oc->soc_cname.bv_val );
1143                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1144                                         c->log, c->msg, 0 );
1145                                 return 1;
1146                         }
1147 #endif
1148
1149                         if ( (*dlip)->dli_ad == ad ) {
1150                                 snprintf( c->msg, sizeof( c->msg ),
1151                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1152                                         "URL attributeDescription \"%s\" already mapped.\n",
1153                                         ad->ad_cname.bv_val );
1154                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1155                                         c->log, c->msg, 0 );
1156                                 return 1;
1157                         }
1158
1159                         if ( member_ad != NULL && (*dlip)->dli_member_ad == member_ad ) {
1160                                 snprintf( c->msg, sizeof( c->msg ),
1161                                         "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1162                                         "member attributeDescription \"%s\" already mapped.\n",
1163                                         member_ad->ad_cname.bv_val );
1164                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1165                                         c->log, c->msg, 0 );
1166                                 return 1;
1167                         }
1168                 }
1169
1170                 if ( c->valx > 0 ) {
1171                         int     i;
1172
1173                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1174                                 i < c->valx; i++ )
1175                         {
1176                                 if ( *dlip == NULL ) {
1177                                         snprintf( c->msg, sizeof( c->msg ),
1178                                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1179                                                 "invalid index {%d}\n",
1180                                                 c->valx );
1181                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1182                                                 c->log, c->msg, 0 );
1183                                         return 1;
1184                                 }
1185                                 dlip = &(*dlip)->dli_next;
1186                         }
1187                         dli_next = *dlip;
1188
1189                 } else {
1190                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1191                                 *dlip; dlip = &(*dlip)->dli_next )
1192                                 /* goto last */;
1193                 }
1194
1195                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1196
1197                 (*dlip)->dli_oc = oc;
1198                 (*dlip)->dli_ad = ad;
1199                 (*dlip)->dli_member_ad = member_ad;
1200                 (*dlip)->dli_next = dli_next;
1201
1202                 rc = dynlist_build_def_filter( *dlip );
1203
1204                 } break;
1205
1206         case DL_ATTRPAIR_COMPAT:
1207                 snprintf( c->msg, sizeof( c->msg ),
1208                         "warning: \"attrpair\" only supported for limited "
1209                         "backward compatibility with overlay \"dyngroup\"" );
1210                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
1211                 /* fallthru */
1212
1213         case DL_ATTRPAIR: {
1214                 dynlist_info_t          **dlip;
1215                 ObjectClass             *oc = NULL;
1216                 AttributeDescription    *ad = NULL,
1217                                         *member_ad = NULL;
1218                 const char              *text;
1219
1220                 oc = oc_find( "groupOfURLs" );
1221                 if ( oc == NULL ) {
1222                         snprintf( c->msg, sizeof( c->msg ),
1223                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1224                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1225                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1226                                 c->log, c->msg, 0 );
1227                         return 1;
1228                 }
1229
1230                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1231                 if ( rc != LDAP_SUCCESS ) {
1232                         snprintf( c->msg, sizeof( c->msg ),
1233                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1234                                 "unable to find AttributeDescription \"%s\"",
1235                                 c->argv[ 1 ] );
1236                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1237                                 c->log, c->msg, 0 );
1238                         return 1;
1239                 }
1240
1241                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1242                 if ( rc != LDAP_SUCCESS ) {
1243                         snprintf( c->msg, sizeof( c->msg ),
1244                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1245                                 "unable to find AttributeDescription \"%s\"\n",
1246                                 c->argv[ 2 ] );
1247                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1248                                 c->log, c->msg, 0 );
1249                         return 1;
1250                 }
1251
1252                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1253                         snprintf( c->msg, sizeof( c->msg ),
1254                                 "\"dynlist-attrset <oc> <URL-ad> [<member-ad>]\": "
1255                                 "AttributeDescription \"%s\" "
1256                                 "must be a subtype of \"labeledURI\"",
1257                                 c->argv[ 2 ] );
1258                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1259                                 c->log, c->msg, 0 );
1260                         return 1;
1261                 }
1262
1263                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1264                         *dlip; dlip = &(*dlip)->dli_next )
1265                 {
1266                         /* The check on objectClass may be relaxed */
1267 #if 0
1268                         if ( (*dlip)->dli_oc == oc ) {
1269                                 snprintf( c->msg, sizeof( c->msg ),
1270                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1271                                         "objectClass \"%s\" already mapped.\n",
1272                                         oc->soc_cname.bv_val );
1273                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1274                                         c->log, c->msg, 0 );
1275                                 return 1;
1276                         }
1277 #endif
1278
1279                         if ( (*dlip)->dli_ad == ad ) {
1280                                 snprintf( c->msg, sizeof( c->msg ),
1281                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1282                                         "URL attributeDescription \"%s\" already mapped.\n",
1283                                         ad->ad_cname.bv_val );
1284                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1285                                         c->log, c->msg, 0 );
1286                                 return 1;
1287                         }
1288
1289                         if ( member_ad != NULL && (*dlip)->dli_member_ad == member_ad ) {
1290                                 snprintf( c->msg, sizeof( c->msg ),
1291                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1292                                         "member attributeDescription \"%s\" already mapped.\n",
1293                                         member_ad->ad_cname.bv_val );
1294                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1295                                         c->log, c->msg, 0 );
1296                                 return 1;
1297                         }
1298                 }
1299
1300                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1301
1302                 (*dlip)->dli_oc = oc;
1303                 (*dlip)->dli_ad = ad;
1304                 (*dlip)->dli_member_ad = member_ad;
1305
1306                 rc = dynlist_build_def_filter( *dlip );
1307
1308                 } break;
1309
1310         default:
1311                 rc = 1;
1312                 break;
1313         }
1314
1315         return rc;
1316 }
1317 #endif
1318
1319 static int
1320 dynlist_db_open(
1321         BackendDB       *be )
1322 {
1323         slap_overinst           *on = (slap_overinst *) be->bd_info;
1324         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1325         ObjectClass             *oc = NULL;
1326         AttributeDescription    *ad = NULL;
1327
1328         if ( dli == NULL ) {
1329                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1330                 on->on_bi.bi_private = (void *)dli;
1331         }
1332
1333         for ( ; dli; dli = dli->dli_next ) {
1334                 const char      *text;
1335                 int             rc;
1336
1337                 if ( dli->dli_oc == NULL ) {
1338                         if ( oc == NULL ) {
1339                                 oc = oc_find( "groupOfURLs" );
1340                                 if ( oc == NULL ) {
1341                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: "
1342                                                 "unable to fetch objectClass \"groupOfURLs\".\n",
1343                                                 0, 0, 0 );
1344                                         return 1;
1345                                 }
1346                         }
1347
1348                         dli->dli_oc = oc;
1349                 }
1350
1351                 if ( dli->dli_ad == NULL ) {
1352                         if ( ad == NULL ) {
1353                                 rc = slap_str2ad( "memberURL", &ad, &text );
1354                                 if ( rc != LDAP_SUCCESS ) {
1355                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: "
1356                                                 "unable to fetch attributeDescription \"memberURL\": %d (%s).\n",
1357                                                 rc, text, 0 );
1358                                         return 1;
1359                                 }
1360                         }
1361
1362                         dli->dli_ad = ad;
1363                 }
1364
1365                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1366                         rc = dynlist_build_def_filter( dli );
1367                         if ( rc != 0 ) {
1368                                 return rc;
1369                         }
1370                 }
1371         }
1372
1373         return 0;
1374 }
1375
1376 static int
1377 dynlist_db_destroy(
1378         BackendDB       *be )
1379 {
1380         slap_overinst   *on = (slap_overinst *) be->bd_info;
1381
1382         if ( on->on_bi.bi_private ) {
1383                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1384                                 *dli_next;
1385
1386                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1387                         dli_next = dli->dli_next;
1388
1389                         ch_free( dli->dli_default_filter.bv_val );
1390                         ch_free( dli );
1391                 }
1392         }
1393
1394         return 0;
1395 }
1396
1397 static slap_overinst    dynlist = { { NULL } };
1398 #ifdef TAKEOVER_DYNGROUP
1399 static char             *obsolete_names[] = {
1400         "dyngroup",
1401         NULL
1402 };
1403 #endif
1404
1405 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1406 static
1407 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1408 int
1409 dynlist_initialize(void)
1410 {
1411 #ifndef OL_2_2_COMPAT
1412         int     rc = 0;
1413 #endif
1414
1415         dynlist.on_bi.bi_type = "dynlist";
1416
1417 #ifdef TAKEOVER_DYNGROUP
1418         /* makes dynlist incompatible with dyngroup */
1419         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1420 #endif
1421
1422 #ifdef OL_2_2_COMPAT
1423         dynlist.on_bi.bi_db_config = dynlist_db_config;
1424 #else
1425         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1426 #endif
1427         dynlist.on_bi.bi_db_open = dynlist_db_open;
1428         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1429
1430         dynlist.on_response = dynlist_response;
1431
1432 #ifndef OL_2_2_COMPAT
1433         dynlist.on_bi.bi_cf_ocs = dlocs;
1434
1435         rc = config_register_schema( dlcfg, dlocs );
1436         if ( rc ) {
1437                 return rc;
1438         }
1439 #endif
1440
1441         return overlay_register( &dynlist );
1442 }
1443
1444 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1445 int
1446 init_module( int argc, char *argv[] )
1447 {
1448         return dynlist_initialize();
1449 }
1450 #endif
1451
1452 #endif /* SLAPD_OVER_DYNLIST */