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 2003-2008 The OpenLDAP Foundation.
   6  * Portions Copyright 2004-2005 Pierangelo Masarati.
   7  * Portions Copyright 2008 Emmanuel Dreyfus.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18 /* ACKNOWLEDGEMENTS:
  19  * This work was initially developed by Pierangelo Masarati
  20  * for SysNet s.n.c., for inclusion in OpenLDAP Software.
  21  */
  22
  23 #include "portable.h"
  24
  25 #ifdef SLAPD_OVER_DYNLIST
  26
  27 #if LDAP_VENDOR_VERSION_MINOR == X || LDAP_VENDOR_VERSION_MINOR > 3
  28 #if SLAPD_OVER_DYNGROUP != SLAPD_MOD_STATIC
  29 #define TAKEOVER_DYNGROUP
  30 #endif
  31 #else
  32 #if LDAP_VENDOR_VERSION_MINOR < 3
  33 #define OL_2_2_COMPAT
  34 #endif
  35 #endif
  36
  37 #include <stdio.h>
  38
  39 #include <ac/string.h>
  40
  41 #include "slap.h"
  42 #ifndef OL_2_2_COMPAT
  43 #include "config.h"
  44 #endif
  45 #include "lutil.h"
  46
  47 /* FIXME: the code differs if SLAP_OPATTRS is defined or not;
  48  * SLAP_OPATTRS is not defined in 2.2 yet, while this overlay
  49  * expects HEAD code at least later than August 6, 2004. */
  50 /* FIXME: slap_anlist_no_attrs was introduced in 2.3; here it
  51  * is anticipated to allow using this overlay with 2.2. */
  52
  53 #ifdef OL_2_2_COMPAT
  54 static AttributeName anlist_no_attrs[] = {
  55         { BER_BVC( LDAP_NO_ATTRS ), NULL, 0, NULL },
  56         { BER_BVNULL, NULL, 0, NULL }
  57 };
  58
  59 static AttributeName *slap_anlist_no_attrs = anlist_no_attrs;
  60 #endif
  61
  62 static AttributeDescription *ad_dgIdentity, *ad_dgAuthz;
  63
  64 typedef struct dynlist_map_t {
  65         AttributeDescription *dlm_member_ad;
  66         AttributeDescription *dlm_mapped_ad;
  67         struct dynlist_map_t *dlm_next;
  68 } dynlist_map_t;
  69
  70 typedef struct dynlist_info_t {
  71         ObjectClass             *dli_oc;
  72         AttributeDescription    *dli_ad;
  73         struct dynlist_map_t    *dli_dlm;
  74         struct berval           dli_default_filter;
  75         struct dynlist_info_t   *dli_next;
  76 } dynlist_info_t;
  77
  78 #define DYNLIST_USAGE \
  79         "\"dynlist-attrset <oc> <URL-ad> [[<mapped-ad>:]<member-ad> ...]\": "
  80
  81 static dynlist_info_t *
  82 dynlist_is_dynlist_next( Operation *op, SlapReply *rs, dynlist_info_t *old_dli )
  83 {
  84         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
  85         dynlist_info_t  *dli;
  86
  87         Attribute       *a;
  88
  89         if ( old_dli == NULL ) {
  90                 dli = (dynlist_info_t *)on->on_bi.bi_private;
  91
  92         } else {
  93                 dli = old_dli->dli_next;
  94         }
  95
  96         a = attrs_find( rs->sr_entry->e_attrs, slap_schema.si_ad_objectClass );
  97         if ( a == NULL ) {
  98                 /* FIXME: objectClass must be present; for non-storage
  99                  * backends, like back-ldap, it needs to be added
 100                  * to the requested attributes */
 101                 return NULL;
 102         }
 103
 104         for ( ; dli; dli = dli->dli_next ) {
 105                 if ( attr_valfind( a,
 106                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 107                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 108                                 &dli->dli_oc->soc_cname, NULL,
 109                                 op->o_tmpmemctx ) == 0 )
 110                 {
 111                         return dli;
 112                 }
 113         }
 114
 115         return NULL;
 116 }
 117
 118 static int
 119 dynlist_make_filter( Operation *op, struct berval *oldf, struct berval *newf )
 120 {
 121         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 122         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 123
 124         char            *ptr;
 125
 126         assert( oldf != NULL );
 127         assert( newf != NULL );
 128         assert( !BER_BVISNULL( oldf ) );
 129         assert( !BER_BVISEMPTY( oldf ) );
 130
 131         newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" )
 132                 + dli->dli_oc->soc_cname.bv_len + oldf->bv_len;
 133         newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx );
 134         if ( newf->bv_val == NULL ) {
 135                 return -1;
 136         }
 137         ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" );
 138         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 139         ptr = lutil_strcopy( ptr, "))" );
 140         ptr = lutil_strcopy( ptr, oldf->bv_val );
 141         ptr = lutil_strcopy( ptr, ")" );
 142         newf->bv_len = ptr - newf->bv_val;
 143
 144         return 0;
 145 }
 146
 147 typedef struct dynlist_sc_t {
 148         dynlist_info_t    *dlc_dli;
 149         Entry           *dlc_e;
 150 } dynlist_sc_t;
 151
 152 static int
 153 dynlist_sc_update( Operation *op, SlapReply *rs )
 154 {
 155         Entry                   *e;
 156         Attribute               *a;
 157         int                     opattrs,
 158                                 userattrs;
 159         AccessControlState      acl_state = ACL_STATE_INIT;
 160
 161         dynlist_sc_t            *dlc;
 162         dynlist_map_t           *dlm;
 163
 164         if ( rs->sr_type != REP_SEARCH ) {
 165                 return 0;
 166         }
 167
 168         dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 169         e = dlc->dlc_e;
 170
 171         assert( e != NULL );
 172         assert( rs->sr_entry != NULL );
 173
 174         /* test access to entry */
 175         if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 176                                 NULL, ACL_READ, NULL ) )
 177         {
 178                 goto done;
 179         }
 180
 181         /* if there is only one member_ad, and it's not mapped,
 182          * consider it as old-style member listing */
 183         dlm = dlc->dlc_dli->dli_dlm;
 184         if ( dlm && dlm->dlm_mapped_ad == NULL && dlm->dlm_next == NULL ) {
 185                 /* if access allowed, try to add values, emulating permissive
 186                  * control to silently ignore duplicates */
 187                 if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry,
 188                                         NULL, ACL_READ, NULL ) )
 189                 {
 190                         Modification    mod;
 191                         const char      *text = NULL;
 192                         char            textbuf[1024];
 193                         struct berval   vals[ 2 ], nvals[ 2 ];
 194
 195                         vals[ 0 ] = rs->sr_entry->e_name;
 196                         BER_BVZERO( &vals[ 1 ] );
 197                         nvals[ 0 ] = rs->sr_entry->e_nname;
 198                         BER_BVZERO( &nvals[ 1 ] );
 199
 200                         mod.sm_op = LDAP_MOD_ADD;
 201                         mod.sm_desc = dlm->dlm_member_ad;
 202                         mod.sm_type = dlm->dlm_member_ad->ad_cname;
 203                         mod.sm_values = vals;
 204                         mod.sm_nvalues = nvals;
 205                         mod.sm_numvals = 1;
 206
 207                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 208                                         &text, textbuf, sizeof( textbuf ) );
 209                 }
 210
 211                 goto done;
 212         }
 213
 214 #ifndef SLAP_OPATTRS
 215         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 216         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 217 #else /* SLAP_OPATTRS */
 218         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 219         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 220 #endif /* SLAP_OPATTRS */
 221
 222         for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) {
 223                 BerVarray       vals, nvals = NULL;
 224                 int             i, j,
 225                                 is_oc = a->a_desc == slap_schema.si_ad_objectClass;
 226
 227                 /* if attribute is not requested, skip it */
 228                 if ( rs->sr_attrs == NULL ) {
 229                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 230                                 continue;
 231                         }
 232
 233                 } else {
 234                         if ( is_at_operational( a->a_desc->ad_type ) ) {
 235                                 if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 236                                 {
 237                                         continue;
 238                                 }
 239
 240                         } else {
 241                                 if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) )
 242                                 {
 243                                         continue;
 244                                 }
 245                         }
 246                 }
 247
 248                 /* test access to attribute */
 249                 if ( op->ors_attrsonly ) {
 250                         if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL,
 251                                                 ACL_READ, &acl_state ) )
 252                         {
 253                                 continue;
 254                         }
 255                 }
 256
 257                 /* single-value check: keep first only */
 258                 if ( is_at_single_value( a->a_desc->ad_type ) ) {
 259                         if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) {
 260                                 continue;
 261                         }
 262                 }
 263
 264                 /* test access to attribute */
 265                 i = a->a_numvals;
 266
 267                 vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 268                 if ( a->a_nvals != a->a_vals ) {
 269                         nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx );
 270                 }
 271
 272                 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
 273                         if ( is_oc ) {
 274                                 ObjectClass     *soc = oc_bvfind( &a->a_vals[i] );
 275
 276                                 if ( soc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) {
 277                                         continue;
 278                                 }
 279                         }
 280
 281                         if ( access_allowed( op, rs->sr_entry, a->a_desc,
 282                                                 &a->a_nvals[i], ACL_READ, &acl_state ) )
 283                         {
 284                                 vals[j] = a->a_vals[i];
 285                                 if ( nvals ) {
 286                                         nvals[j] = a->a_nvals[i];
 287                                 }
 288                                 j++;
 289                         }
 290                 }
 291
 292                 /* if access allowed, try to add values, emulating permissive
 293                  * control to silently ignore duplicates */
 294                 if ( j != 0 ) {
 295                         Modification    mod;
 296                         const char      *text = NULL;
 297                         char            textbuf[1024];
 298                         dynlist_map_t   *dlm;
 299                         AttributeDescription *ad;
 300
 301                         BER_BVZERO( &vals[j] );
 302                         if ( nvals ) {
 303                                 BER_BVZERO( &nvals[j] );
 304                         }
 305
 306                         ad = a->a_desc;
 307                         for ( dlm = dlc->dlc_dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 308                                 if ( dlm->dlm_member_ad == a->a_desc ) {
 309                                         ad = dlm->dlm_mapped_ad;
 310                                         break;
 311                                 }
 312                         }
 313
 314                         mod.sm_op = LDAP_MOD_ADD;
 315                         mod.sm_desc = ad;
 316                         mod.sm_type = ad->ad_cname;
 317                         mod.sm_values = vals;
 318                         mod.sm_nvalues = nvals;
 319                         mod.sm_numvals = j;
 320
 321                         (void)modify_add_values( e, &mod, /* permissive */ 1,
 322                                         &text, textbuf, sizeof( textbuf ) );
 323                 }
 324
 325                 op->o_tmpfree( vals, op->o_tmpmemctx );
 326                 if ( nvals ) {
 327                         op->o_tmpfree( nvals, op->o_tmpmemctx );
 328                 }
 329         }
 330
 331 done:;
 332         if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
 333                 entry_free( rs->sr_entry );
 334                 rs->sr_entry = NULL;
 335                 rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
 336         }
 337
 338         return 0;
 339 }
 340
 341 static int
 342 dynlist_prepare_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli )
 343 {
 344         Attribute       *a, *id = NULL;
 345         slap_callback   cb;
 346         Operation       o = *op;
 347         SlapReply       r = { REP_SEARCH };
 348         struct berval   *url;
 349         Entry           *e;
 350         slap_mask_t     e_flags;
 351         int             opattrs,
 352                         userattrs;
 353         dynlist_sc_t    dlc = { 0 };
 354         dynlist_map_t   *dlm;
 355
 356         a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad );
 357         if ( a == NULL ) {
 358                 /* FIXME: error? */
 359                 return SLAP_CB_CONTINUE;
 360         }
 361
 362 #ifndef SLAP_OPATTRS
 363         opattrs = ( rs->sr_attrs == NULL ) ? 0 : an_find( rs->sr_attrs, &AllOper );
 364         userattrs = ( rs->sr_attrs == NULL ) ? 1 : an_find( rs->sr_attrs, &AllUser );
 365 #else /* SLAP_OPATTRS */
 366         opattrs = SLAP_OPATTRS( rs->sr_attr_flags );
 367         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 368 #endif /* SLAP_OPATTRS */
 369
 370         /* Don't generate member list if it wasn't requested */
 371         for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 372                 if ( userattrs ||
 373                      ad_inlist( dlm->dlm_member_ad, rs->sr_attrs ) )
 374                         break;
 375         }
 376         if ( dli->dli_dlm && !dlm )
 377                 return SLAP_CB_CONTINUE;
 378
 379         if ( ad_dgIdentity && ( id = attrs_find( rs->sr_entry->e_attrs, ad_dgIdentity ))) {
 380                 Attribute *authz = NULL;
 381
 382                 /* if not rootdn and dgAuthz is present,
 383                  * check if user can be authorized as dgIdentity */
 384                 if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 385                         && ( authz = attrs_find( rs->sr_entry->e_attrs, ad_dgAuthz ) ) )
 386                 {
 387                         if ( slap_sasl_matches( op, authz->a_nvals,
 388                                 &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 389                         {
 390                                 return SLAP_CB_CONTINUE;
 391                         }
 392                 }
 393
 394                 o.o_dn = id->a_vals[0];
 395                 o.o_ndn = id->a_nvals[0];
 396                 o.o_groups = NULL;
 397         }
 398
 399         if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
 400                 e = entry_dup( rs->sr_entry );
 401         } else {
 402                 e = rs->sr_entry;
 403         }
 404         e_flags = rs->sr_flags | ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
 405
 406         dlc.dlc_e = e;
 407         dlc.dlc_dli = dli;
 408         cb.sc_private = &dlc;
 409         cb.sc_response = dynlist_sc_update;
 410         cb.sc_cleanup = NULL;
 411         cb.sc_next = NULL;
 412
 413         o.o_callback = &cb;
 414         o.ors_deref = LDAP_DEREF_NEVER;
 415         o.ors_limit = NULL;
 416         o.ors_tlimit = SLAP_NO_LIMIT;
 417         o.ors_slimit = SLAP_NO_LIMIT;
 418
 419         for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) {
 420                 LDAPURLDesc     *lud = NULL;
 421                 int             i, j;
 422                 struct berval   dn;
 423                 int             rc;
 424                 dynlist_map_t   *dlm;
 425
 426                 BER_BVZERO( &o.o_req_dn );
 427                 BER_BVZERO( &o.o_req_ndn );
 428                 o.ors_filter = NULL;
 429                 o.ors_attrs = NULL;
 430                 BER_BVZERO( &o.ors_filterstr );
 431
 432                 if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) {
 433                         /* FIXME: error? */
 434                         continue;
 435                 }
 436
 437                 if ( lud->lud_host != NULL ) {
 438                         /* FIXME: host not allowed; reject as illegal? */
 439                         Debug( LDAP_DEBUG_ANY, "dynlist_prepare_entry(\"%s\"): "
 440                                 "illegal URI \"%s\"\n",
 441                                 e->e_name.bv_val, url->bv_val, 0 );
 442                         goto cleanup;
 443                 }
 444
 445                 if ( lud->lud_dn == NULL ) {
 446                         /* note that an empty base is not honored in terms
 447                          * of defaultSearchBase, because select_backend()
 448                          * is not aware of the defaultSearchBase option;
 449                          * this can be useful in case of a database serving
 450                          * the empty suffix */
 451                         BER_BVSTR( &dn, "" );
 452
 453                 } else {
 454                         ber_str2bv( lud->lud_dn, 0, 0, &dn );
 455                 }
 456                 rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx );
 457                 if ( rc != LDAP_SUCCESS ) {
 458                         /* FIXME: error? */
 459                         goto cleanup;
 460                 }
 461                 o.ors_scope = lud->lud_scope;
 462
 463                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
 464                         if ( dlm->dlm_mapped_ad != NULL ) {
 465                                 break;
 466                         }
 467                 }
 468
 469                 if ( dli->dli_dlm && !dlm ) {
 470                         /* if ( lud->lud_attrs != NULL ),
 471                          * the URL should be ignored */
 472                         o.ors_attrs = slap_anlist_no_attrs;
 473
 474                 } else if ( lud->lud_attrs == NULL ) {
 475                         o.ors_attrs = rs->sr_attrs;
 476
 477                 } else {
 478                         for ( i = 0; lud->lud_attrs[i]; i++)
 479                                 /* just count */ ;
 480
 481                         o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx );
 482                         for ( i = 0, j = 0; lud->lud_attrs[i]; i++) {
 483                                 const char      *text = NULL;
 484
 485                                 ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name );
 486                                 o.ors_attrs[j].an_desc = NULL;
 487                                 (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text );
 488                                 /* FIXME: ignore errors... */
 489
 490                                 if ( rs->sr_attrs == NULL ) {
 491                                         if ( o.ors_attrs[j].an_desc != NULL &&
 492                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 493                                         {
 494                                                 continue;
 495                                         }
 496
 497                                 } else {
 498                                         if ( o.ors_attrs[j].an_desc != NULL &&
 499                                                         is_at_operational( o.ors_attrs[j].an_desc->ad_type ) )
 500                                         {
 501                                                 if ( !opattrs && !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 502                                                 {
 503                                                         continue;
 504                                                 }
 505
 506                                         } else {
 507                                                 if ( !userattrs &&
 508                                                                 o.ors_attrs[j].an_desc != NULL &&
 509                                                                 !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) )
 510                                                 {
 511                                                         continue;
 512                                                 }
 513                                         }
 514                                 }
 515
 516                                 j++;
 517                         }
 518
 519                         if ( j == 0 ) {
 520                                 goto cleanup;
 521                         }
 522
 523                         BER_BVZERO( &o.ors_attrs[j].an_name );
 524                 }
 525
 526                 if ( lud->lud_filter == NULL ) {
 527                         ber_dupbv_x( &o.ors_filterstr,
 528                                         &dli->dli_default_filter, op->o_tmpmemctx );
 529
 530                 } else {
 531                         struct berval   flt;
 532                         ber_str2bv( lud->lud_filter, 0, 0, &flt );
 533                         if ( dynlist_make_filter( op, &flt, &o.ors_filterstr ) ) {
 534                                 /* error */
 535                                 goto cleanup;
 536                         }
 537                 }
 538                 o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val );
 539                 if ( o.ors_filter == NULL ) {
 540                         goto cleanup;
 541                 }
 542
 543                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 544                 if ( o.o_bd && o.o_bd->be_search ) {
 545 #ifdef SLAP_OPATTRS
 546                         r.sr_attr_flags = slap_attr_flags( o.ors_attrs );
 547 #endif /* SLAP_OPATTRS */
 548                         (void)o.o_bd->be_search( &o, &r );
 549                 }
 550
 551 cleanup:;
 552                 if ( id ) {
 553                         slap_op_groups_free( &o );
 554                 }
 555                 if ( o.ors_filter ) {
 556                         filter_free_x( &o, o.ors_filter );
 557                 }
 558                 if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs
 559                                 && o.ors_attrs != slap_anlist_no_attrs )
 560                 {
 561                         op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx );
 562                 }
 563                 if ( !BER_BVISNULL( &o.o_req_dn ) ) {
 564                         op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx );
 565                 }
 566                 if ( !BER_BVISNULL( &o.o_req_ndn ) ) {
 567                         op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx );
 568                 }
 569                 assert( BER_BVISNULL( &o.ors_filterstr )
 570                         || o.ors_filterstr.bv_val != lud->lud_filter );
 571                 op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx );
 572                 ldap_free_urldesc( lud );
 573         }
 574
 575         rs->sr_entry = e;
 576         rs->sr_flags = e_flags;
 577
 578         return SLAP_CB_CONTINUE;
 579 }
 580
 581 static int
 582 dynlist_sc_save_entry( Operation *op, SlapReply *rs )
 583 {
 584         /* save the entry in the private field of the callback,
 585          * so it doesn't get freed (it's temporary!) */
 586         if ( rs->sr_entry != NULL ) {
 587                 dynlist_sc_t    *dlc = (dynlist_sc_t *)op->o_callback->sc_private;
 588                 dlc->dlc_e = rs->sr_entry;
 589                 rs->sr_entry = NULL;
 590         }
 591
 592         return 0;
 593 }
 594
 595 static int
 596 dynlist_compare( Operation *op, SlapReply *rs )
 597 {
 598         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 599         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
 600         Operation o = *op;
 601         Entry *e = NULL;
 602         dynlist_map_t *dlm;
 603
 604         for ( ; dli != NULL; dli = dli->dli_next ) {
 605                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next )
 606                         if ( op->oq_compare.rs_ava->aa_desc == dlm->dlm_member_ad )
 607                                 break;
 608
 609                 if ( dli->dli_dlm && dlm ) {
 610                         /* This compare is for one of the attributes we're
 611                          * interested in. We'll use slapd's existing dyngroup
 612                          * evaluator to get the answer we want.
 613                          */
 614                         BerVarray id = NULL, authz = NULL;
 615
 616                         o.o_do_not_cache = 1;
 617
 618                         if ( ad_dgIdentity && backend_attribute( &o, NULL, &o.o_req_ndn,
 619                                 ad_dgIdentity, &id, ACL_READ ) == LDAP_SUCCESS )
 620                         {
 621                                 /* if not rootdn and dgAuthz is present,
 622                                  * check if user can be authorized as dgIdentity */
 623                                 if ( ad_dgAuthz && !BER_BVISEMPTY( id ) && !be_isroot( op )
 624                                         && backend_attribute( &o, NULL, &o.o_req_ndn,
 625                                                 ad_dgAuthz, &authz, ACL_READ ) == LDAP_SUCCESS )
 626                                 {
 627
 628                                         rs->sr_err = slap_sasl_matches( op, authz,
 629                                                 &o.o_ndn, &o.o_ndn );
 630                                         ber_bvarray_free_x( authz, op->o_tmpmemctx );
 631                                         if ( rs->sr_err != LDAP_SUCCESS ) {
 632                                                 goto done;
 633                                         }
 634                                 }
 635
 636                                 o.o_dn = *id;
 637                                 o.o_ndn = *id;
 638                                 o.o_groups = NULL; /* authz changed, invalidate cached groups */
 639                         }
 640
 641                         rs->sr_err = backend_group( &o, NULL, &o.o_req_ndn,
 642                                 &o.oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad );
 643                         switch ( rs->sr_err ) {
 644                         case LDAP_SUCCESS:
 645                                 rs->sr_err = LDAP_COMPARE_TRUE;
 646                                 break;
 647
 648                         case LDAP_NO_SUCH_OBJECT:
 649                                 /* NOTE: backend_group() returns noSuchObject
 650                                  * if op_ndn does not exist; however, since
 651                                  * dynamic list expansion means that the
 652                                  * member attribute is virtually present, the
 653                                  * non-existence of the asserted value implies
 654                                  * the assertion is FALSE rather than
 655                                  * UNDEFINED */
 656                                 rs->sr_err = LDAP_COMPARE_FALSE;
 657                                 break;
 658                         }
 659
 660 done:;
 661                         if ( id ) ber_bvarray_free_x( id, o.o_tmpmemctx );
 662
 663                         return SLAP_CB_CONTINUE;
 664                 }
 665         }
 666
 667         if ( overlay_entry_get_ov( &o, &o.o_req_ndn, NULL, NULL, 0, &e, on ) !=
 668                 LDAP_SUCCESS || e == NULL )
 669         {
 670                 return SLAP_CB_CONTINUE;
 671         }
 672
 673         if ( ad_dgIdentity ) {
 674                 Attribute *id = attrs_find( e->e_attrs, ad_dgIdentity );
 675                 if ( id ) {
 676                         Attribute *authz;
 677
 678                         /* if not rootdn and dgAuthz is present,
 679                          * check if user can be authorized as dgIdentity */
 680                         if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op )
 681                                 && ( authz = attrs_find( e->e_attrs, ad_dgAuthz ) ) )
 682                         {
 683                                 if ( slap_sasl_matches( op, authz->a_nvals,
 684                                         &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS )
 685                                 {
 686                                         goto release;
 687                                 }
 688                         }
 689
 690                         o.o_dn = id->a_vals[0];
 691                         o.o_ndn = id->a_nvals[0];
 692                         o.o_groups = NULL;
 693                 }
 694         }
 695
 696         dli = (dynlist_info_t *)on->on_bi.bi_private;
 697         for ( ; dli != NULL && rs->sr_err != LDAP_COMPARE_TRUE; dli = dli->dli_next ) {
 698                 Attribute       *a;
 699                 slap_callback   cb;
 700                 SlapReply       r = { REP_SEARCH };
 701                 AttributeName   an[2];
 702                 int             rc;
 703                 dynlist_sc_t    dlc = { 0 };
 704
 705                 if ( !is_entry_objectclass_or_sub( e, dli->dli_oc ))
 706                         continue;
 707
 708                 /* if the entry has the right objectClass, generate
 709                  * the dynamic list and compare */
 710                 dlc.dlc_dli = dli;
 711                 cb.sc_private = &dlc;
 712                 cb.sc_response = dynlist_sc_save_entry;
 713                 cb.sc_cleanup = NULL;
 714                 cb.sc_next = NULL;
 715                 o.o_callback = &cb;
 716
 717                 o.o_tag = LDAP_REQ_SEARCH;
 718                 o.ors_limit = NULL;
 719                 o.ors_tlimit = SLAP_NO_LIMIT;
 720                 o.ors_slimit = SLAP_NO_LIMIT;
 721
 722                 o.o_bd = select_backend( &o.o_req_ndn, 1 );
 723                 if ( !o.o_bd || !o.o_bd->be_search ) {
 724                         goto release;
 725                 }
 726
 727                 o.ors_filterstr = *slap_filterstr_objectClass_pres;
 728                 o.ors_filter = (Filter *) slap_filter_objectClass_pres;
 729
 730                 o.ors_scope = LDAP_SCOPE_BASE;
 731                 o.ors_deref = LDAP_DEREF_NEVER;
 732                 an[0].an_name = op->orc_ava->aa_desc->ad_cname;
 733                 an[0].an_desc = op->orc_ava->aa_desc;
 734                 BER_BVZERO( &an[1].an_name );
 735                 o.ors_attrs = an;
 736                 o.ors_attrsonly = 0;
 737
 738                 o.o_acl_priv = ACL_COMPARE;
 739
 740                 rc = o.o_bd->be_search( &o, &r );
 741
 742                 if ( o.o_dn.bv_val != op->o_dn.bv_val ) {
 743                         slap_op_groups_free( &o );
 744                 }
 745
 746                 if ( rc != 0 ) {
 747                         goto release;
 748                 }
 749
 750                 if ( dlc.dlc_e != NULL ) {
 751                         r.sr_entry = dlc.dlc_e;
 752                 }
 753
 754                 if ( r.sr_err != LDAP_SUCCESS || r.sr_entry == NULL ) {
 755                         /* error? */
 756                         goto release;
 757                 }
 758
 759                 for ( a = attrs_find( r.sr_entry->e_attrs, op->orc_ava->aa_desc );
 760                         a != NULL;
 761                         a = attrs_find( a->a_next, op->orc_ava->aa_desc ) )
 762                 {
 763                         /* if we're here, we got a match... */
 764                         rs->sr_err = LDAP_COMPARE_FALSE;
 765
 766                         if ( attr_valfind( a,
 767                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 768                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 769                                 &op->orc_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
 770                         {
 771                                 rs->sr_err = LDAP_COMPARE_TRUE;
 772                                 break;
 773                         }
 774                 }
 775
 776                 if ( r.sr_flags & REP_ENTRY_MUSTBEFREED ) {
 777                         entry_free( r.sr_entry );
 778                 }
 779         }
 780
 781 release:;
 782         if ( e != NULL ) {
 783                 overlay_entry_release_ov( &o, e, 0, on );
 784         }
 785
 786         return SLAP_CB_CONTINUE;
 787 }
 788
 789 static int
 790 dynlist_response( Operation *op, SlapReply *rs )
 791 {
 792         dynlist_info_t  *dli;
 793
 794         switch ( op->o_tag ) {
 795         case LDAP_REQ_SEARCH:
 796                 if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) )
 797                 {
 798                         int     rc = LDAP_OTHER;
 799
 800                         for ( dli = dynlist_is_dynlist_next( op, rs, NULL );
 801                                 dli;
 802                                 dli = dynlist_is_dynlist_next( op, rs, dli ) )
 803                         {
 804                                 rc = dynlist_prepare_entry( op, rs, dli );
 805                         }
 806
 807                         if ( rc != LDAP_OTHER ) {
 808                                 return rc;
 809                         }
 810                 }
 811                 break;
 812
 813         case LDAP_REQ_COMPARE:
 814                 switch ( rs->sr_err ) {
 815                 /* NOTE: we waste a few cycles running the dynamic list
 816                  * also when the result is FALSE, which occurs if the
 817                  * dynamic entry itself contains the AVA attribute  */
 818                 /* FIXME: this approach is less than optimal; a dedicated
 819                  * compare op should be implemented, that fetches the
 820                  * entry, checks if it has the appropriate objectClass
 821                  * and, in case, runs a compare thru all the URIs,
 822                  * stopping at the first positive occurrence; see ITS#3756 */
 823                 case LDAP_COMPARE_FALSE:
 824                 case LDAP_NO_SUCH_ATTRIBUTE:
 825                         return dynlist_compare( op, rs );
 826                 }
 827                 break;
 828
 829         default:
 830                 break;
 831         }
 832
 833         return SLAP_CB_CONTINUE;
 834 }
 835
 836 static int
 837 dynlist_build_def_filter( dynlist_info_t *dli )
 838 {
 839         char    *ptr;
 840
 841         dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" )
 842                 + dli->dli_oc->soc_cname.bv_len;
 843         dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 );
 844         if ( dli->dli_default_filter.bv_val == NULL ) {
 845                 Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n",
 846                         0, 0, 0 );
 847                 return -1;
 848         }
 849
 850         ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" );
 851         ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val );
 852         ptr = lutil_strcopy( ptr, "))" );
 853
 854         assert( dli->dli_default_filter.bv_len == ptr - dli->dli_default_filter.bv_val );
 855
 856         return 0;
 857 }
 858
 859 #ifdef OL_2_2_COMPAT
 860 static int
 861 dynlist_db_config(
 862         BackendDB       *be,
 863         const char      *fname,
 864         int             lineno,
 865         int             argc,
 866         char            **argv )
 867 {
 868         slap_overinst   *on = (slap_overinst *)be->bd_info;
 869
 870         int             rc = 0;
 871
 872         if ( strcasecmp( argv[0], "dynlist-attrset" ) == 0 ) {
 873                 dynlist_info_t          **dlip;
 874                 ObjectClass             *oc;
 875                 AttributeDescription    *ad = NULL,
 876                                         *member_ad = NULL;
 877                 dynlist_map_t           *dlm = NULL;
 878                 const char              *text;
 879
 880                 if ( argc < 3 ) {
 881                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 882                                 "invalid arg number #%d.\n",
 883                                 fname, lineno, argc );
 884                         return 1;
 885                 }
 886
 887                 oc = oc_find( argv[1] );
 888                 if ( oc == NULL ) {
 889                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 890                                 "unable to find ObjectClass \"%s\"\n",
 891                                 fname, lineno, argv[ 1 ] );
 892                         return 1;
 893                 }
 894
 895                 rc = slap_str2ad( argv[2], &ad, &text );
 896                 if ( rc != LDAP_SUCCESS ) {
 897                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 898                                 "unable to find AttributeDescription \"%s\"\n",
 899                                 fname, lineno, argv[2] );
 900                         return 1;
 901                 }
 902
 903                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
 904                         Debug( LDAP_DEBUG_ANY, "%s: line %d: " DYNLIST_USAGE
 905                                 "AttributeDescription \"%s\" "
 906                                 "must be a subtype of \"labeledURI\"\n",
 907                                 fname, lineno, argv[2] );
 908                         return 1;
 909                 }
 910
 911                 for ( i = 3; i < argc; i++ ) {
 912                         char *arg;
 913                         char *cp;
 914                         AttributeDescription *member_ad = NULL;
 915                         AttributeDescription *mapped_ad = NULL;
 916                         dynlist_map_t *dlmp;
 917                         dynlist_map_t *dlml;
 918
 919
 920                         /*
 921                          * If no mapped attribute is given, dn is used
 922                          * for backward compatibility.
 923                          */
 924                         arg = argv[i];
 925                         if ( cp = strchr( arg, (int)':' ) != NULL ) {
 926                                 struct berval bv;
 927                                 ber_str2bv( arg, cp - arg, 0, &bv );
 928                                 rc = slap_bv2ad( &bv, &mapped_ad, &text );
 929                                 if ( rc != LDAP_SUCCESS ) {
 930                                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 931                                                 DYNLIST_USAGE
 932                                                 "unable to find mapped AttributeDescription \"%s\"\n",
 933                                                 fname, lineno, arg );
 934                                         return 1;
 935                                 }
 936
 937                                 arg = cp + 1;
 938                         }
 939
 940                         rc = slap_str2ad( arg, &member_ad, &text );
 941                         if ( rc != LDAP_SUCCESS ) {
 942                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 943                                         DYNLIST_USAGE
 944                                         "unable to find AttributeDescription \"%s\"\n",
 945                                         fname, lineno, arg );
 946                                 return 1;
 947                         }
 948
 949                         dlmp = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
 950                         if ( dlm == NULL ) {
 951                                 dlm = dlmp;
 952                                 dlml = NULL;
 953                         }
 954                         dlmp->dlm_member_ad = member_ad;
 955                         dlmp->dlm_mapped_ad = mapped_ad;
 956                         dlmp->dlm_next = NULL;
 957
 958                         if ( dlml != NULL )
 959                                 dlml->dlm_next = dlmp;
 960                         dlml = dlmp;
 961                 }
 962
 963                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
 964                         *dlip; dlip = &(*dlip)->dli_next )
 965                 {
 966                         /*
 967                          * The same URL attribute / member attribute pair
 968                          * cannot be repeated, but we enforce this only
 969                          * when the member attribute is unique. Performing
 970                          * the check for multiple values would require
 971                          * sorting and comparing the lists, which is left
 972                          * as a future improvement
 973                          */
 974                         if ( (*dlip)->dli_ad == ad &&
 975                              (*dlip)->dli_dlm->dlm_next == NULL &&
 976                              dlm->dlm_next == NULL &&
 977                              dlm->dlm_member_ad == (*dlip)->dli_dlm->dlm_member_ad &&
 978                              dlm->dlm_mapped_ad == (*dlip)->dli_dlm->dlm_mapped_ad ) {
 979                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
 980                                         DYNLIST_USAGE
 981                                         "URL attributeDescription \"%s\" already mapped.\n",
 982                                         fname, lineno, ad->ad_cname.bv_val );
 983 #if 0
 984                                 /* make it a warning... */
 985                                 return 1;
 986 #endif
 987                         }
 988                 }
 989
 990                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
 991                 (*dlip)->dli_oc = oc;
 992                 (*dlip)->dli_ad = ad;
 993                 (*dlip)->dli_dlm = dlm;
 994
 995                 if ( dynlist_build_def_filter( *dlip ) ) {
 996                         dynlist_map_t *dlm = (*dlip)->ldi_dlm;
 997                         dynlist_map_t *dlm_next;
 998
 999                         while ( dlm != NULL ) {
1000                                 dlm_next = dlm->dlm_next;
1001                                 ch_free( dlm );
1002                                 dlm = dlm_next;
1003                         }
1004
1005                         ch_free( *dlip );
1006                         *dlip = NULL;
1007                         return 1;
1008                 }
1009
1010         /* allow dyngroup syntax */
1011         } else if ( strcasecmp( argv[0], "dynlist-attrpair" ) == 0 ) {
1012                 dynlist_info_t          **dlip;
1013                 ObjectClass             *oc;
1014                 AttributeDescription    *ad = NULL,
1015                                         *member_ad = NULL;
1016                 const char              *text;
1017
1018                 if ( argc != 3 ) {
1019                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1020                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1021                                 "invalid arg number #%d.\n",
1022                                 fname, lineno, argc );
1023                         return 1;
1024                 }
1025
1026                 oc = oc_find( "groupOfURLs" );
1027                 if ( oc == NULL ) {
1028                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1029                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1030                                 "unable to find default ObjectClass \"groupOfURLs\"\n",
1031                                 fname, lineno, 0 );
1032                         return 1;
1033                 }
1034
1035                 rc = slap_str2ad( argv[1], &member_ad, &text );
1036                 if ( rc != LDAP_SUCCESS ) {
1037                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1038                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1039                                 "unable to find AttributeDescription \"%s\"\n",
1040                                 fname, lineno, argv[1] );
1041                         return 1;
1042                 }
1043
1044                 rc = slap_str2ad( argv[2], &ad, &text );
1045                 if ( rc != LDAP_SUCCESS ) {
1046                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1047                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1048                                 "unable to find AttributeDescription \"%s\"\n",
1049                                 fname, lineno, argv[2] );
1050                         return 1;
1051                 }
1052
1053                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1054                         Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1055                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1056                                 "AttributeDescription \"%s\" "
1057                                 "must be a subtype of \"labeledURI\"\n",
1058                                 fname, lineno, argv[2] );
1059                         return 1;
1060                 }
1061
1062                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1063                         *dlip; dlip = &(*dlip)->dli_next )
1064                 {
1065                         /*
1066                          * The same URL attribute / member attribute pair
1067                          * cannot be repeated, but we enforce this only
1068                          * when the member attribute is unique. Performing
1069                          * the check for multiple values would require
1070                          * sorting and comparing the lists, which is left
1071                          * as a future improvement
1072                          */
1073                         if ( (*dlip)->dli_ad == ad &&
1074                              (*dlip)->dli_dlm->dlm_next == NULL &&
1075                              member_ad == (*dlip)->dli_dlm->dlm_member_ad ) {
1076                                 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
1077                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1078                                         "URL attributeDescription \"%s\" already mapped.\n",
1079                                         fname, lineno, ad->ad_cname.bv_val );
1080 #if 0
1081                                 /* make it a warning... */
1082                                 return 1;
1083 #endif
1084                         }
1085                 }
1086
1087                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1088                 (*dlip)->dli_oc = oc;
1089                 (*dlip)->dli_ad = ad;
1090                 (*dlip)->dli_dlm = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1091                 (*dlip)->dli_dlm->dlm_member_ad = member_ad;
1092                 (*dlip)->dli_dlm->dlm_mapped_ad = NULL;
1093
1094                 if ( dynlist_build_def_filter( *dlip ) ) {
1095                         ch_free( (*dlip)->dli_dlm );
1096                         ch_free( *dlip );
1097                         *dlip = NULL;
1098                         return 1;
1099                 }
1100
1101         } else {
1102                 rc = SLAP_CONF_UNKNOWN;
1103         }
1104
1105         return rc;
1106 }
1107
1108 #else
1109 enum {
1110         DL_ATTRSET = 1,
1111         DL_ATTRPAIR,
1112         DL_ATTRPAIR_COMPAT,
1113         DL_LAST
1114 };
1115
1116 static ConfigDriver     dl_cfgen;
1117
1118 /* XXXmanu 255 is the maximum arguments we allow. Can we go beyond? */
1119 static ConfigTable dlcfg[] = {
1120         { "dynlist-attrset", "group-oc> <URL-ad> <member-ad",
1121                 3, 255, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen,
1122                 "( OLcfgOvAt:8.1 NAME 'olcDLattrSet' "
1123                         "DESC 'Dynamic list: <group objectClass>, <URL attributeDescription>, <member attributeDescription>' "
1124                         "EQUALITY caseIgnoreMatch "
1125                         "SYNTAX OMsDirectoryString "
1126                         "X-ORDERED 'VALUES' )",
1127                         NULL, NULL },
1128         { "dynlist-attrpair", "member-ad> <URL-ad",
1129                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR, dl_cfgen,
1130                         NULL, NULL, NULL },
1131 #ifdef TAKEOVER_DYNGROUP
1132         { "attrpair", "member-ad> <URL-ad",
1133                 3, 3, 0, ARG_MAGIC|DL_ATTRPAIR_COMPAT, dl_cfgen,
1134                         NULL, NULL, NULL },
1135 #endif
1136         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1137 };
1138
1139 static ConfigOCs dlocs[] = {
1140         { "( OLcfgOvOc:8.1 "
1141                 "NAME 'olcDynamicList' "
1142                 "DESC 'Dynamic list configuration' "
1143                 "SUP olcOverlayConfig "
1144                 "MAY olcDLattrSet )",
1145                 Cft_Overlay, dlcfg, NULL, NULL },
1146         { NULL, 0, NULL }
1147 };
1148
1149 static int
1150 dl_cfgen( ConfigArgs *c )
1151 {
1152         slap_overinst   *on = (slap_overinst *)c->bi;
1153         dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private;
1154
1155         int             rc = 0, i;
1156
1157         if ( c->op == SLAP_CONFIG_EMIT ) {
1158                 switch( c->type ) {
1159                 case DL_ATTRSET:
1160                         for ( i = 0; dli; i++, dli = dli->dli_next ) {
1161                                 struct berval   bv;
1162                                 char            *ptr = c->cr_msg;
1163                                 dynlist_map_t   *dlm;
1164
1165                                 assert( dli->dli_oc != NULL );
1166                                 assert( dli->dli_ad != NULL );
1167
1168                                 ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ),
1169                                         SLAP_X_ORDERED_FMT "%s %s", i,
1170                                         dli->dli_oc->soc_cname.bv_val,
1171                                         dli->dli_ad->ad_cname.bv_val );
1172
1173                                 for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) {
1174                                         ptr[ 0 ] = ' ';
1175                                         ptr++;
1176                                         if ( dlm->dlm_mapped_ad ) {
1177                                                 ptr = lutil_strcopy( ptr, dlm->dlm_mapped_ad->ad_cname.bv_val );
1178                                                 ptr[ 0 ] = ':';
1179                                                 ptr++;
1180                                         }
1181
1182                                         ptr = lutil_strcopy( ptr, dlm->dlm_member_ad->ad_cname.bv_val );
1183                                 }
1184
1185                                 bv.bv_val = c->cr_msg;
1186                                 bv.bv_len = ptr - bv.bv_val;
1187                                 value_add_one( &c->rvalue_vals, &bv );
1188                         }
1189                         break;
1190
1191                 case DL_ATTRPAIR_COMPAT:
1192                 case DL_ATTRPAIR:
1193                         rc = 1;
1194                         break;
1195
1196                 default:
1197                         rc = 1;
1198                         break;
1199                 }
1200
1201                 return rc;
1202
1203         } else if ( c->op == LDAP_MOD_DELETE ) {
1204                 switch( c->type ) {
1205                 case DL_ATTRSET:
1206                         if ( c->valx < 0 ) {
1207                                 dynlist_info_t  *dli_next;
1208
1209                                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1210                                         dynlist_map_t *dlm = dli->dli_dlm;
1211                                         dynlist_map_t *dlm_next;
1212
1213                                         dli_next = dli->dli_next;
1214
1215                                         ch_free( dli->dli_default_filter.bv_val );
1216
1217                                         while ( dlm != NULL ) {
1218                                                 dlm_next = dlm->dlm_next;
1219                                                 ch_free( dlm );
1220                                                 dlm = dlm_next;
1221                                         }
1222                                         ch_free( dli );
1223                                 }
1224
1225                                 on->on_bi.bi_private = NULL;
1226
1227                         } else {
1228                                 dynlist_info_t  **dlip;
1229                                 dynlist_map_t *dlm;
1230                                 dynlist_map_t *dlm_next;
1231
1232                                 for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1233                                         i < c->valx; i++ )
1234                                 {
1235                                         if ( *dlip == NULL ) {
1236                                                 return 1;
1237                                         }
1238                                         dlip = &(*dlip)->dli_next;
1239                                 }
1240
1241                                 dli = *dlip;
1242                                 *dlip = dli->dli_next;
1243                                 ch_free( dli->dli_default_filter.bv_val );
1244
1245                                 dlm = dli->dli_dlm;
1246                                 while ( dlm != NULL ) {
1247                                         dlm_next = dlm->dlm_next;
1248                                         ch_free( dlm );
1249                                         dlm = dlm_next;
1250                                 }
1251                                 ch_free( dli );
1252
1253                                 dli = (dynlist_info_t *)on->on_bi.bi_private;
1254                         }
1255                         break;
1256
1257                 case DL_ATTRPAIR_COMPAT:
1258                 case DL_ATTRPAIR:
1259                         rc = 1;
1260                         break;
1261
1262                 default:
1263                         rc = 1;
1264                         break;
1265                 }
1266
1267                 return rc;
1268         }
1269
1270         switch( c->type ) {
1271         case DL_ATTRSET: {
1272                 dynlist_info_t          **dlip,
1273                                         *dli_next = NULL;
1274                 ObjectClass             *oc = NULL;
1275                 AttributeDescription    *ad = NULL;
1276                 dynlist_map_t           *dlm = NULL;
1277                 const char              *text;
1278
1279                 oc = oc_find( c->argv[ 1 ] );
1280                 if ( oc == NULL ) {
1281                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1282                                 "unable to find ObjectClass \"%s\"",
1283                                 c->argv[ 1 ] );
1284                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1285                                 c->log, c->cr_msg, 0 );
1286                         return 1;
1287                 }
1288
1289                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1290                 if ( rc != LDAP_SUCCESS ) {
1291                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1292                                 "unable to find AttributeDescription \"%s\"",
1293                                 c->argv[ 2 ] );
1294                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1295                                 c->log, c->cr_msg, 0 );
1296                         return 1;
1297                 }
1298
1299                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1300                         snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE
1301                                 "AttributeDescription \"%s\" "
1302                                 "must be a subtype of \"labeledURI\"",
1303                                 c->argv[ 2 ] );
1304                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1305                                 c->log, c->cr_msg, 0 );
1306                         return 1;
1307                 }
1308
1309                 for ( i = 3; i < c->argc; i++ ) {
1310                         char *arg;
1311                         char *cp;
1312                         AttributeDescription *member_ad = NULL;
1313                         AttributeDescription *mapped_ad = NULL;
1314                         dynlist_map_t *dlmp;
1315                         dynlist_map_t *dlml;
1316
1317
1318                         /*
1319                          * If no mapped attribute is given, dn is used
1320                          * for backward compatibility.
1321                          */
1322                         arg = c->argv[i];
1323                         if ( ( cp = strchr( arg, ':' ) ) != NULL ) {
1324                                 struct berval bv;
1325                                 ber_str2bv( arg, cp - arg, 0, &bv );
1326                                 rc = slap_bv2ad( &bv, &mapped_ad, &text );
1327                                 if ( rc != LDAP_SUCCESS ) {
1328                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1329                                                 DYNLIST_USAGE
1330                                                 "unable to find mapped AttributeDescription #%d \"%s\"\n",
1331                                                 i - 3, c->argv[ i ] );
1332                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1333                                                 c->log, c->cr_msg, 0 );
1334                                         return 1;
1335                                 }
1336                                 arg = cp + 1;
1337                         }
1338
1339                         rc = slap_str2ad( arg, &member_ad, &text );
1340                         if ( rc != LDAP_SUCCESS ) {
1341                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1342                                         DYNLIST_USAGE
1343                                         "unable to find AttributeDescription #%d \"%s\"\n",
1344                                         i - 3, c->argv[ i ] );
1345                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1346                                         c->log, c->cr_msg, 0 );
1347                                 return 1;
1348                         }
1349
1350                         dlmp = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1351                         if ( dlm == NULL ) {
1352                                 dlm = dlmp;
1353                                 dlml = NULL;
1354                         }
1355                         dlmp->dlm_member_ad = member_ad;
1356                         dlmp->dlm_mapped_ad = mapped_ad;
1357                         dlmp->dlm_next = NULL;
1358
1359                         if ( dlml != NULL )
1360                                 dlml->dlm_next = dlmp;
1361                         dlml = dlmp;
1362                 }
1363
1364                 if ( c->valx > 0 ) {
1365                         int     i;
1366
1367                         for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1368                                 i < c->valx; i++ )
1369                         {
1370                                 if ( *dlip == NULL ) {
1371                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1372                                                 DYNLIST_USAGE
1373                                                 "invalid index {%d}\n",
1374                                                 c->valx );
1375                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1376                                                 c->log, c->cr_msg, 0 );
1377                                         return 1;
1378                                 }
1379                                 dlip = &(*dlip)->dli_next;
1380                         }
1381                         dli_next = *dlip;
1382
1383                 } else {
1384                         for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1385                                 *dlip; dlip = &(*dlip)->dli_next )
1386                                 /* goto last */;
1387                 }
1388
1389                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1390
1391                 (*dlip)->dli_oc = oc;
1392                 (*dlip)->dli_ad = ad;
1393                 (*dlip)->dli_dlm = dlm;
1394                 (*dlip)->dli_next = dli_next;
1395
1396                 rc = dynlist_build_def_filter( *dlip );
1397
1398                 } break;
1399
1400         case DL_ATTRPAIR_COMPAT:
1401                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1402                         "warning: \"attrpair\" only supported for limited "
1403                         "backward compatibility with overlay \"dyngroup\"" );
1404                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
1405                 /* fallthru */
1406
1407         case DL_ATTRPAIR: {
1408                 dynlist_info_t          **dlip;
1409                 ObjectClass             *oc = NULL;
1410                 AttributeDescription    *ad = NULL,
1411                                         *member_ad = NULL;
1412                 const char              *text;
1413
1414                 oc = oc_find( "groupOfURLs" );
1415                 if ( oc == NULL ) {
1416                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1417                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1418                                 "unable to find default ObjectClass \"groupOfURLs\"" );
1419                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1420                                 c->log, c->cr_msg, 0 );
1421                         return 1;
1422                 }
1423
1424                 rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text );
1425                 if ( rc != LDAP_SUCCESS ) {
1426                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1427                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1428                                 "unable to find AttributeDescription \"%s\"",
1429                                 c->argv[ 1 ] );
1430                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1431                                 c->log, c->cr_msg, 0 );
1432                         return 1;
1433                 }
1434
1435                 rc = slap_str2ad( c->argv[ 2 ], &ad, &text );
1436                 if ( rc != LDAP_SUCCESS ) {
1437                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1438                                 "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1439                                 "unable to find AttributeDescription \"%s\"\n",
1440                                 c->argv[ 2 ] );
1441                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1442                                 c->log, c->cr_msg, 0 );
1443                         return 1;
1444                 }
1445
1446                 if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) {
1447                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
1448                                 DYNLIST_USAGE
1449                                 "AttributeDescription \"%s\" "
1450                                 "must be a subtype of \"labeledURI\"",
1451                                 c->argv[ 2 ] );
1452                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1453                                 c->log, c->cr_msg, 0 );
1454                         return 1;
1455                 }
1456
1457                 for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private;
1458                         *dlip; dlip = &(*dlip)->dli_next )
1459                 {
1460                         /*
1461                          * The same URL attribute / member attribute pair
1462                          * cannot be repeated, but we enforce this only
1463                          * when the member attribute is unique. Performing
1464                          * the check for multiple values would require
1465                          * sorting and comparing the lists, which is left
1466                          * as a future improvement
1467                          */
1468                         if ( (*dlip)->dli_ad == ad &&
1469                              (*dlip)->dli_dlm->dlm_next == NULL &&
1470                              member_ad == (*dlip)->dli_dlm->dlm_member_ad ) {
1471                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1472                                         "\"dynlist-attrpair <member-ad> <URL-ad>\": "
1473                                         "URL attributeDescription \"%s\" already mapped.\n",
1474                                         ad->ad_cname.bv_val );
1475                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n",
1476                                         c->log, c->cr_msg, 0 );
1477 #if 0
1478                                 /* make it a warning... */
1479                                 return 1;
1480 #endif
1481                         }
1482                 }
1483
1484                 *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) );
1485
1486                 (*dlip)->dli_oc = oc;
1487                 (*dlip)->dli_ad = ad;
1488                 (*dlip)->dli_dlm = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) );
1489                 (*dlip)->dli_dlm->dlm_member_ad = member_ad;
1490                 (*dlip)->dli_dlm->dlm_mapped_ad = NULL;
1491
1492                 rc = dynlist_build_def_filter( *dlip );
1493
1494                 } break;
1495
1496         default:
1497                 rc = 1;
1498                 break;
1499         }
1500
1501         return rc;
1502 }
1503 #endif
1504
1505 static int
1506 dynlist_db_open(
1507         BackendDB       *be,
1508         ConfigReply     *cr )
1509 {
1510         slap_overinst           *on = (slap_overinst *) be->bd_info;
1511         dynlist_info_t          *dli = (dynlist_info_t *)on->on_bi.bi_private;
1512         ObjectClass             *oc = NULL;
1513         AttributeDescription    *ad = NULL;
1514         const char      *text;
1515         int rc;
1516
1517         if ( dli == NULL ) {
1518                 dli = ch_calloc( 1, sizeof( dynlist_info_t ) );
1519                 on->on_bi.bi_private = (void *)dli;
1520         }
1521
1522         for ( ; dli; dli = dli->dli_next ) {
1523                 if ( dli->dli_oc == NULL ) {
1524                         if ( oc == NULL ) {
1525                                 oc = oc_find( "groupOfURLs" );
1526                                 if ( oc == NULL ) {
1527                                         snprintf( cr->msg, sizeof( cr->msg),
1528                                                 "unable to fetch objectClass \"groupOfURLs\"" );
1529                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1530                                         return 1;
1531                                 }
1532                         }
1533
1534                         dli->dli_oc = oc;
1535                 }
1536
1537                 if ( dli->dli_ad == NULL ) {
1538                         if ( ad == NULL ) {
1539                                 rc = slap_str2ad( "memberURL", &ad, &text );
1540                                 if ( rc != LDAP_SUCCESS ) {
1541                                         snprintf( cr->msg, sizeof( cr->msg),
1542                                                 "unable to fetch attributeDescription \"memberURL\": %d (%s)",
1543                                                 rc, text );
1544                                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 );
1545                                         return 1;
1546                                 }
1547                         }
1548
1549                         dli->dli_ad = ad;
1550                 }
1551
1552                 if ( BER_BVISNULL( &dli->dli_default_filter ) ) {
1553                         rc = dynlist_build_def_filter( dli );
1554                         if ( rc != 0 ) {
1555                                 return rc;
1556                         }
1557                 }
1558         }
1559
1560         if ( ad_dgIdentity == NULL ) {
1561                 rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text );
1562                 if ( rc != LDAP_SUCCESS ) {
1563                         snprintf( cr->msg, sizeof( cr->msg),
1564                                 "unable to fetch attributeDescription \"dgIdentity\": %d (%s)",
1565                                 rc, text );
1566                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1567                         /* Just a warning */
1568                 }
1569         }
1570
1571         if ( ad_dgAuthz == NULL ) {
1572                 rc = slap_str2ad( "dgAuthz", &ad_dgAuthz, &text );
1573                 if ( rc != LDAP_SUCCESS ) {
1574                         snprintf( cr->msg, sizeof( cr->msg),
1575                                 "unable to fetch attributeDescription \"dgAuthz\": %d (%s)",
1576                                 rc, text );
1577                         Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 );
1578                         /* Just a warning */
1579                 }
1580         }
1581
1582         return 0;
1583 }
1584
1585 static int
1586 dynlist_db_destroy(
1587         BackendDB       *be,
1588         ConfigReply     *cr )
1589 {
1590         slap_overinst   *on = (slap_overinst *) be->bd_info;
1591
1592         if ( on->on_bi.bi_private ) {
1593                 dynlist_info_t  *dli = (dynlist_info_t *)on->on_bi.bi_private,
1594                                 *dli_next;
1595
1596                 for ( dli_next = dli; dli_next; dli = dli_next ) {
1597                         dynlist_map_t *dlm;
1598                         dynlist_map_t *dlm_next;
1599
1600                         dli_next = dli->dli_next;
1601
1602                         ch_free( dli->dli_default_filter.bv_val );
1603                         dlm = dli->dli_dlm;
1604                         while ( dlm != NULL ) {
1605                                 dlm_next = dlm->dlm_next;
1606                                 ch_free( dlm );
1607                                 dlm = dlm_next;
1608                         }
1609                         ch_free( dli );
1610                 }
1611         }
1612
1613         return 0;
1614 }
1615
1616 static slap_overinst    dynlist = { { NULL } };
1617 #ifdef TAKEOVER_DYNGROUP
1618 static char             *obsolete_names[] = {
1619         "dyngroup",
1620         NULL
1621 };
1622 #endif
1623
1624 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1625 static
1626 #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */
1627 int
1628 dynlist_initialize(void)
1629 {
1630 #ifndef OL_2_2_COMPAT
1631         int     rc = 0;
1632 #endif
1633
1634         dynlist.on_bi.bi_type = "dynlist";
1635
1636 #ifdef TAKEOVER_DYNGROUP
1637         /* makes dynlist incompatible with dyngroup */
1638         dynlist.on_bi.bi_obsolete_names = obsolete_names;
1639 #endif
1640
1641 #ifdef OL_2_2_COMPAT
1642         dynlist.on_bi.bi_db_config = dynlist_db_config;
1643 #else
1644         dynlist.on_bi.bi_db_config = config_generic_wrapper;
1645 #endif
1646         dynlist.on_bi.bi_db_open = dynlist_db_open;
1647         dynlist.on_bi.bi_db_destroy = dynlist_db_destroy;
1648
1649         dynlist.on_response = dynlist_response;
1650
1651 #ifndef OL_2_2_COMPAT
1652         dynlist.on_bi.bi_cf_ocs = dlocs;
1653
1654         rc = config_register_schema( dlcfg, dlocs );
1655         if ( rc ) {
1656                 return rc;
1657         }
1658 #endif
1659
1660         return overlay_register( &dynlist );
1661 }
1662
1663 #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC
1664 int
1665 init_module( int argc, char *argv[] )
1666 {
1667         return dynlist_initialize();
1668 }
1669 #endif
1670
1671 #endif /* SLAPD_OVER_DYNLIST */