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

   1 /* memberof.c - back-reference for group membership */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2005-2007 Pierangelo Masarati <ando@sys-net.it>
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGMENTS:
  17  * This work was initially developed by Pierangelo Masarati for inclusion
  18  * in OpenLDAP Software, sponsored by SysNet s.r.l.
  19  */
  20
  21 #include "portable.h"
  22
  23 #ifdef SLAPD_OVER_MEMBEROF
  24
  25 #include <stdio.h>
  26
  27 #include "ac/string.h"
  28 #include "ac/socket.h"
  29
  30 #include "slap.h"
  31 #include "config.h"
  32 #include "lutil.h"
  33
  34 /*
  35  *      Glossary:
  36  *
  37  *              GROUP           a group object (an entry with GROUP_OC
  38  *                              objectClass)
  39  *              MEMBER          a member object (an entry whose DN is
  40  *                              listed as MEMBER_AT value of a GROUP)
  41  *              GROUP_OC        the objectClass of the group object
  42  *                              (default: groupOfNames)
  43  *              MEMBER_AT       the membership attribute, DN-valued;
  44  *                              note: nameAndOptionalUID is tolerated
  45  *                              as soon as the optionalUID is absent
  46  *                              (default: member)
  47  *              MEMBER_OF       reverse membership attribute
  48  *                              (default: memberOf)
  49  *
  50  *      - add:
  51  *              - if the entry that is being added is a GROUP,
  52  *                the MEMBER_AT defined as values of the add operation
  53  *                get the MEMBER_OF value directly from the request.
  54  *
  55  *                if configured to do so, the MEMBER objects do not exist,
  56  *                and no relax control is issued, either:
  57  *                      - fail
  58  *                      - drop non-existing members
  59  *                (by default: don't muck with values)
  60  *
  61  *              - if (configured to do so,) the referenced GROUP exists,
  62  *                the relax control is set and the user has
  63  *                "manage" privileges, allow to add MEMBER_OF values to
  64  *                generic entries.
  65  *
  66  *      - modify:
  67  *              - if the entry being modified is a GROUP_OC and the
  68  *                MEMBER_AT attribute is modified, the MEMBER_OF value
  69  *                of the (existing) MEMBER_AT entries that are affected
  70  *                is modified according to the request:
  71  *                      - if a MEMBER is removed from the group,
  72  *                        delete the corresponding MEMBER_OF
  73  *                      - if a MEMBER is added to a group,
  74  *                        add the corresponding MEMBER_OF
  75  *
  76  *                We need to determine, from the database, if it is
  77  *                a GROUP_OC, and we need to check, from the
  78  *                modification list, if the MEMBER_AT attribute is being
  79  *                affected, and what MEMBER_AT values are affected.
  80  *
  81  *                if configured to do so, the entries corresponding to
  82  *                the MEMBER_AT values do not exist, and no relax control
  83  *                is issued, either:
  84  *                      - fail
  85  *                      - drop non-existing members
  86  *                (by default: don't muck with values)
  87  *
  88  *              - if configured to do so, the referenced GROUP exists,
  89  *                (the relax control is set) and the user has
  90  *                "manage" privileges, allow to add MEMBER_OF values to
  91  *                generic entries; the change is NOT automatically reflected
  92  *                in the MEMBER attribute of the GROUP referenced
  93  *                by the value of MEMBER_OF; a separate modification,
  94  *                with or without relax control, needs to be performed.
  95  *
  96  *      - modrdn:
  97  *              - if the entry being renamed is a GROUP, the MEMBER_OF
  98  *                value of the (existing) MEMBER objects is modified
  99  *                accordingly based on the newDN of the GROUP.
 100  *
 101  *                We need to determine, from the database, if it is
 102  *                a GROUP; the list of MEMBER objects is obtained from
 103  *                the database.
 104  *
 105  *                Non-existing MEMBER objects are ignored, since the
 106  *                MEMBER_AT is not being addressed by the operation.
 107  *
 108  *              - if the entry being renamed has the MEMBER_OF attribute,
 109  *                the corresponding MEMBER value must be modified in the
 110  *                respective group entries.
 111  *
 112  *
 113  *      - delete:
 114  *              - if the entry being deleted is a GROUP, the (existing)
 115  *                MEMBER objects are modified accordingly; a copy of the
 116  *                values of the MEMBER_AT is saved and, if the delete
 117  *                succeeds, the MEMBER_OF value of the (existing) MEMBER
 118  *                objects is deleted.
 119  *
 120  *                We need to determine, from the database, if it is
 121  *                a GROUP.
 122  *
 123  *                Non-existing MEMBER objects are ignored, since the entry
 124  *                is being deleted.
 125  *
 126  *              - if the entry being deleted has the MEMBER_OF attribute,
 127  *                the corresponding value of the MEMBER_AT must be deleted
 128  *                from the respective GROUP entries.
 129  */
 130
 131 #define SLAPD_MEMBEROF_ATTR     "memberOf"
 132
 133 static slap_overinst            memberof;
 134
 135 typedef struct memberof_t {
 136         struct berval           mo_dn;
 137         struct berval           mo_ndn;
 138
 139         ObjectClass             *mo_oc_group;
 140         AttributeDescription    *mo_ad_member;
 141         AttributeDescription    *mo_ad_memberof;
 142
 143         struct berval           mo_groupFilterstr;
 144         AttributeAssertion      mo_groupAVA;
 145         Filter                  mo_groupFilter;
 146
 147         struct berval           mo_memberFilterstr;
 148         Filter                  mo_memberFilter;
 149
 150         unsigned                mo_flags;
 151 #define MEMBEROF_NONE           0x00U
 152 #define MEMBEROF_FDANGLING_DROP 0x01U
 153 #define MEMBEROF_FDANGLING_ERROR        0x02U
 154 #define MEMBEROF_FDANGLING_MASK (MEMBEROF_FDANGLING_DROP|MEMBEROF_FDANGLING_ERROR)
 155 #define MEMBEROF_FREFINT        0x04U
 156 #define MEMBEROF_FREVERSE       0x08U
 157
 158 #define MEMBEROF_CHK(mo,f) \
 159         (((mo)->mo_flags & (f)) == (f))
 160 #define MEMBEROF_DANGLING_CHECK(mo) \
 161         ((mo)->mo_flags & MEMBEROF_FDANGLING_MASK)
 162 #define MEMBEROF_DANGLING_DROP(mo) \
 163         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_DROP)
 164 #define MEMBEROF_DANGLING_ERROR(mo) \
 165         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_ERROR)
 166 #define MEMBEROF_REFINT(mo) \
 167         MEMBEROF_CHK((mo),MEMBEROF_FREFINT)
 168 #define MEMBEROF_REVERSE(mo) \
 169         MEMBEROF_CHK((mo),MEMBEROF_FREVERSE)
 170 } memberof_t;
 171
 172 typedef enum memberof_is_t {
 173         MEMBEROF_IS_NONE = 0x00,
 174         MEMBEROF_IS_GROUP = 0x01,
 175         MEMBEROF_IS_MEMBER = 0x02,
 176         MEMBEROF_IS_BOTH = (MEMBEROF_IS_GROUP|MEMBEROF_IS_MEMBER)
 177 } memberof_is_t;
 178
 179 /*
 180  * failover storage for member attribute values of groups being deleted
 181  * handles [no]thread cases.
 182  */
 183 static BerVarray        saved_member_vals;
 184 static BerVarray        saved_memberof_vals;
 185
 186 static void
 187 memberof_saved_member_free( void *key, void *data )
 188 {
 189         ber_bvarray_free( (BerVarray)data );
 190 }
 191
 192 static BerVarray
 193 memberof_saved_member_get( Operation *op, void *keyp )
 194 {
 195         BerVarray       vals;
 196         BerVarray       *key = (BerVarray *)keyp;
 197
 198         assert( op != NULL );
 199
 200         if ( op->o_threadctx == NULL ) {
 201                 vals = *key;
 202                 *key = NULL;
 203
 204         } else {
 205                 ldap_pvt_thread_pool_getkey( op->o_threadctx,
 206                                 key, (void **)&vals, NULL );
 207                 ldap_pvt_thread_pool_setkey( op->o_threadctx,
 208                                 key, NULL, NULL );
 209         }
 210
 211         return vals;
 212 }
 213
 214 static void
 215 memberof_saved_member_set( Operation *op, void *keyp, BerVarray vals )
 216 {
 217         BerVarray       saved_vals = NULL;
 218         BerVarray       *key = (BerVarray*)keyp;
 219
 220         assert( op != NULL );
 221
 222         if ( vals ) {
 223                 ber_bvarray_dup_x( &saved_vals, vals, NULL );
 224         }
 225
 226         if ( op->o_threadctx == NULL ) {
 227                 if ( *key ) {
 228                         ber_bvarray_free( *key );
 229                 }
 230                 *key = saved_vals;
 231
 232         } else {
 233                 ldap_pvt_thread_pool_setkey( op->o_threadctx, key,
 234                                 saved_vals, memberof_saved_member_free );
 235         }
 236 }
 237
 238 typedef struct memberof_cookie_t {
 239         AttributeDescription    *ad;
 240         void                    *key;
 241         int                     foundit;
 242 } memberof_cookie_t;
 243
 244 static int
 245 memberof_isGroupOrMember_cb( Operation *op, SlapReply *rs )
 246 {
 247         if ( rs->sr_type == REP_SEARCH ) {
 248                 memberof_cookie_t       *mc;
 249
 250                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 251                 mc->foundit = 1;
 252         }
 253
 254         return 0;
 255 }
 256
 257 /*
 258  * callback for internal search that saves the member attribute values
 259  * of groups being deleted.
 260  */
 261 static int
 262 memberof_saveMember_cb( Operation *op, SlapReply *rs )
 263 {
 264         if ( rs->sr_type == REP_SEARCH ) {
 265                 memberof_cookie_t       *mc;
 266                 Attribute               *a;
 267
 268                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 269                 mc->foundit = 1;
 270
 271                 assert( rs->sr_entry != NULL );
 272                 assert( rs->sr_entry->e_attrs != NULL );
 273
 274                 a = attr_find( rs->sr_entry->e_attrs, mc->ad );
 275
 276                 assert( a != NULL );
 277
 278                 memberof_saved_member_set( op, mc->key, a->a_nvals );
 279
 280                 if ( attr_find( a->a_next, mc->ad ) != NULL ) {
 281                         Debug( LDAP_DEBUG_ANY,
 282                                 "%s: memberof_saveMember_cb(\"%s\"): "
 283                                 "more than one occurrence of \"%s\" "
 284                                 "attribute.\n",
 285                                 op->o_log_prefix,
 286                                 rs->sr_entry->e_name.bv_val,
 287                                 mc->ad->ad_cname.bv_val );
 288                 }
 289         }
 290
 291         return 0;
 292 }
 293
 294 /*
 295  * the delete hook performs an internal search that saves the member
 296  * attribute values of groups being deleted.
 297  */
 298 static int
 299 memberof_isGroupOrMember( Operation *op, memberof_is_t *iswhatp )
 300 {
 301         slap_overinst           *on = (slap_overinst *)op->o_bd->bd_info;
 302         memberof_t              *mo = (memberof_t *)on->on_bi.bi_private;
 303
 304         Operation               op2 = *op;
 305         SlapReply               rs2 = { REP_RESULT };
 306         slap_callback           cb = { 0 };
 307         memberof_cookie_t       mc;
 308         AttributeName           an[ 2 ];
 309
 310         memberof_is_t           iswhat = MEMBEROF_IS_NONE;
 311
 312         assert( iswhatp != NULL );
 313         assert( *iswhatp != MEMBEROF_IS_NONE );
 314
 315         cb.sc_private = &mc;
 316         if ( op->o_tag == LDAP_REQ_DELETE ) {
 317                 cb.sc_response = memberof_saveMember_cb;
 318
 319         } else {
 320                 cb.sc_response = memberof_isGroupOrMember_cb;
 321         }
 322
 323         op2.o_tag = LDAP_REQ_SEARCH;
 324         op2.o_callback = &cb;
 325         op2.o_dn = op->o_bd->be_rootdn;
 326         op2.o_ndn = op->o_bd->be_rootndn;
 327
 328         op2.ors_scope = LDAP_SCOPE_BASE;
 329         op2.ors_deref = LDAP_DEREF_NEVER;
 330         BER_BVZERO( &an[ 1 ].an_name );
 331         op2.ors_attrs = an;
 332         op2.ors_attrsonly = 0;
 333         op2.ors_limit = NULL;
 334         op2.ors_slimit = 1;
 335         op2.ors_tlimit = SLAP_NO_LIMIT;
 336
 337         if ( *iswhatp & MEMBEROF_IS_GROUP ) {
 338                 mc.ad = mo->mo_ad_member;
 339                 mc.key = &saved_member_vals;
 340                 mc.foundit = 0;
 341                 an[ 0 ].an_desc = mo->mo_ad_member;
 342                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 343                 op2.ors_filterstr = mo->mo_groupFilterstr;
 344                 op2.ors_filter = &mo->mo_groupFilter;
 345
 346                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 347                 (void)op->o_bd->be_search( &op2, &rs2 );
 348                 op2.o_bd->bd_info = (BackendInfo *)on;
 349
 350                 if ( mc.foundit ) {
 351                         iswhat |= MEMBEROF_IS_GROUP;
 352
 353                 } else {
 354                         memberof_saved_member_set( op, mc.key, NULL );
 355                 }
 356         }
 357
 358         if ( *iswhatp & MEMBEROF_IS_MEMBER ) {
 359                 mc.ad = mo->mo_ad_memberof;
 360                 mc.key = &saved_memberof_vals;
 361                 mc.foundit = 0;
 362                 an[ 0 ].an_desc = mo->mo_ad_memberof;
 363                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 364                 op2.ors_filterstr = mo->mo_memberFilterstr;
 365                 op2.ors_filter = &mo->mo_memberFilter;
 366
 367                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 368                 (void)op->o_bd->be_search( &op2, &rs2 );
 369                 op2.o_bd->bd_info = (BackendInfo *)on;
 370
 371                 if ( mc.foundit ) {
 372                         iswhat |= MEMBEROF_IS_MEMBER;
 373
 374                 } else {
 375                         memberof_saved_member_set( op, mc.key, NULL );
 376                 }
 377         }
 378
 379         *iswhatp = iswhat;
 380
 381         return LDAP_SUCCESS;
 382 }
 383
 384 /*
 385  * response callback that adds memberof values when a group is modified.
 386  */
 387 static int
 388 memberof_value_modify(
 389         Operation               *op,
 390         SlapReply               *rs,
 391         struct berval           *ndn,
 392         AttributeDescription    *ad,
 393         struct berval           *old_dn,
 394         struct berval           *old_ndn,
 395         struct berval           *new_dn,
 396         struct berval           *new_ndn )
 397 {
 398         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 399         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 400
 401         Operation       op2 = *op;
 402         SlapReply       rs2 = { REP_RESULT };
 403         slap_callback   cb = { NULL, slap_null_cb, NULL, NULL };
 404         Modifications   mod[ 2 ] = { { { 0 } } }, *ml;
 405         struct berval   values[ 4 ], nvalues[ 4 ];
 406
 407         op2.o_tag = LDAP_REQ_MODIFY;
 408
 409         op2.o_req_dn = *ndn;
 410         op2.o_req_ndn = *ndn;
 411
 412         op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 413
 414         op2.o_callback = &cb;
 415         op2.o_dn = op->o_bd->be_rootdn;
 416         op2.o_ndn = op->o_bd->be_rootndn;
 417
 418         ml = &mod[ 0 ];
 419         ml->sml_numvals = 1;
 420         ml->sml_values = &values[ 0 ];
 421         ml->sml_values[ 0 ] = mo->mo_dn;
 422         BER_BVZERO( &ml->sml_values[ 1 ] );
 423         ml->sml_nvalues = &nvalues[ 0 ];
 424         ml->sml_nvalues[ 0 ] = mo->mo_ndn;
 425         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 426         ml->sml_desc = slap_schema.si_ad_modifiersName;
 427         ml->sml_type = ml->sml_desc->ad_cname;
 428         ml->sml_op = LDAP_MOD_REPLACE;
 429         ml->sml_flags = SLAP_MOD_INTERNAL;
 430         ml->sml_next = NULL;
 431         op2.orm_modlist = ml;
 432
 433         ml = &mod[ 1 ];
 434         ml->sml_numvals = 1;
 435         ml->sml_values = &values[ 2 ];
 436         BER_BVZERO( &ml->sml_values[ 1 ] );
 437         ml->sml_nvalues = &nvalues[ 2 ];
 438         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 439         ml->sml_desc = ad;
 440         ml->sml_type = ml->sml_desc->ad_cname;
 441         ml->sml_flags = SLAP_MOD_INTERNAL;
 442         ml->sml_next = NULL;
 443         op2.orm_modlist->sml_next = ml;
 444
 445         if ( new_ndn != NULL ) {
 446                 assert( !BER_BVISNULL( new_dn ) );
 447                 assert( !BER_BVISNULL( new_ndn ) );
 448
 449                 ml = &mod[ 1 ];
 450                 ml->sml_op = LDAP_MOD_ADD;
 451
 452                 ml->sml_values[ 0 ] = *new_dn;
 453                 ml->sml_nvalues[ 0 ] = *new_ndn;
 454
 455                 (void)op->o_bd->be_modify( &op2, &rs2 );
 456                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 457                         char buf[ SLAP_TEXT_BUFLEN ];
 458                         snprintf( buf, sizeof( buf ),
 459                                 "memberof_value_modify %s=\"%s\" failed err=%d",
 460                                 ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err );
 461                         Debug( LDAP_DEBUG_ANY, "%s: %s\n", op->o_log_prefix, buf, 0 );
 462                 }
 463
 464                 assert( op2.orm_modlist == &mod[ 0 ] );
 465                 assert( op2.orm_modlist->sml_next == &mod[ 1 ] );
 466                 ml = op2.orm_modlist->sml_next->sml_next;
 467                 if ( ml != NULL ) {
 468                         slap_mods_free( ml, 1 );
 469                 }
 470         }
 471
 472         if ( old_ndn != NULL ) {
 473                 assert( !BER_BVISNULL( old_dn ) );
 474                 assert( !BER_BVISNULL( old_ndn ) );
 475
 476                 ml = &mod[ 1 ];
 477                 ml->sml_op = LDAP_MOD_DELETE;
 478
 479                 ml->sml_values[ 0 ] = *old_dn;
 480                 ml->sml_nvalues[ 0 ] = *old_ndn;
 481
 482                 (void)op->o_bd->be_modify( &op2, &rs2 );
 483                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 484                         char buf[ SLAP_TEXT_BUFLEN ];
 485                         snprintf( buf, sizeof( buf ),
 486                                 "memberof_value_modify %s=\"%s\" failed err=%d",
 487                                 ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err );
 488                         Debug( LDAP_DEBUG_ANY, "%s: %s\n", op->o_log_prefix, buf, 0 );
 489                 }
 490
 491                 assert( op2.orm_modlist == &mod[ 0 ] );
 492                 assert( op2.orm_modlist->sml_next == &mod[ 1 ] );
 493                 ml = op2.orm_modlist->sml_next->sml_next;
 494                 if ( ml != NULL ) {
 495                         slap_mods_free( ml, 1 );
 496                 }
 497         }
 498
 499         /* FIXME: if old_group_ndn doesn't exist, both delete __and__
 500          * add will fail; better split in two operations, although
 501          * not optimal in terms of performance.  At least it would
 502          * move towards self-repairing capabilities. */
 503
 504         op2.o_bd->bd_info = (BackendInfo *)on;
 505
 506         return rs2.sr_err;
 507 }
 508
 509 static int
 510 memberof_op_add( Operation *op, SlapReply *rs )
 511 {
 512         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 513         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 514
 515         Attribute       **ap, **map = NULL;
 516         int             rc = SLAP_CB_CONTINUE;
 517         int             i;
 518         struct berval   save_dn, save_ndn;
 519
 520         if ( op->ora_e->e_attrs == NULL ) {
 521                 /* FIXME: global overlay; need to deal with */
 522                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 523                         "consistency checks not implemented when overlay "
 524                         "is instantiated as global.\n",
 525                         op->o_log_prefix, op->o_req_dn.bv_val, 0 );
 526                 return SLAP_CB_CONTINUE;
 527         }
 528
 529         if ( MEMBEROF_REVERSE( mo ) ) {
 530                 for ( ap = &op->ora_e->e_attrs; *ap; ap = &(*ap)->a_next ) {
 531                         Attribute       *a = *ap;
 532
 533                         if ( a->a_desc == mo->mo_ad_memberof ) {
 534                                 map = ap;
 535                                 break;
 536                         }
 537                 }
 538         }
 539
 540         save_dn = op->o_dn;
 541         save_ndn = op->o_ndn;
 542
 543         if ( MEMBEROF_DANGLING_CHECK( mo )
 544                         && !get_relax( op )
 545                         && is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) )
 546         {
 547                 op->o_dn = op->o_bd->be_rootdn;
 548                 op->o_dn = op->o_bd->be_rootndn;
 549                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 550
 551                 for ( ap = &op->ora_e->e_attrs; *ap; ) {
 552                         Attribute       *a = *ap;
 553
 554                         if ( !is_ad_subtype( a->a_desc, mo->mo_ad_member ) ) {
 555                                 ap = &a->a_next;
 556                                 continue;
 557                         }
 558
 559                         assert( a->a_nvals != NULL );
 560
 561                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 562                                 Entry           *e = NULL;
 563
 564                                 rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 565                                                 NULL, NULL, 0, &e );
 566                                 if ( rc == LDAP_SUCCESS ) {
 567                                         be_entry_release_r( op, e );
 568                                         continue;
 569                                 }
 570
 571                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 572                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 573                                         rs->sr_text = "adding non-existing object "
 574                                                 "as group member";
 575                                         send_ldap_result( op, rs );
 576                                         goto done;
 577                                 }
 578
 579                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 580                                         int     j;
 581
 582                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 583                                                 "member=\"%s\" does not exist (stripping...)\n",
 584                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 585                                                 a->a_vals[ i ].bv_val );
 586
 587                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 588                                         ber_memfree( a->a_vals[ i ].bv_val );
 589                                         BER_BVZERO( &a->a_vals[ i ] );
 590                                         if ( a->a_nvals != a->a_vals ) {
 591                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 592                                                 BER_BVZERO( &a->a_nvals[ i ] );
 593                                         }
 594                                         if ( j - i == 1 ) {
 595                                                 break;
 596                                         }
 597
 598                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 599                                                 sizeof( struct berval ) * ( j - i ) );
 600                                         if ( a->a_nvals != a->a_vals ) {
 601                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 602                                                         sizeof( struct berval ) * ( j - i ) );
 603                                         }
 604                                         i--;
 605                                 }
 606                         }
 607
 608                         /* If all values have been removed,
 609                          * remove the attribute itself. */
 610                         if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 611                                 *ap = a->a_next;
 612                                 attr_free( a );
 613
 614                         } else {
 615                                 ap = &a->a_next;
 616                         }
 617                 }
 618                 op->o_dn = save_dn;
 619                 op->o_ndn = save_ndn;
 620                 op->o_bd->bd_info = (BackendInfo *)on;
 621         }
 622
 623         if ( map != NULL ) {
 624                 Attribute               *a = *map;
 625                 AccessControlState      acl_state = ACL_STATE_INIT;
 626
 627                 for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 628                         Entry           *e;
 629
 630                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 631                         /* access is checked with the original identity */
 632                         rc = access_allowed( op, op->ora_e, mo->mo_ad_memberof,
 633                                         &a->a_nvals[ i ], ACL_WADD,
 634                                         &acl_state );
 635                         if ( rc == 0 ) {
 636                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 637                                 rs->sr_text = NULL;
 638                                 send_ldap_result( op, rs );
 639                                 goto done;
 640                         }
 641                         rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 642                                         NULL, NULL, 0, &e );
 643                         op->o_bd->bd_info = (BackendInfo *)on;
 644                         if ( rc != LDAP_SUCCESS ) {
 645                                 if ( get_relax( op ) ) {
 646                                         continue;
 647                                 }
 648
 649                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 650                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 651                                         rs->sr_text = "adding non-existing object "
 652                                                 "as memberof";
 653                                         send_ldap_result( op, rs );
 654                                         goto done;
 655                                 }
 656
 657                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 658                                         int     j;
 659
 660                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 661                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 662                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 663                                                 a->a_nvals[ i ].bv_val );
 664
 665                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 666                                         ber_memfree( a->a_vals[ i ].bv_val );
 667                                         BER_BVZERO( &a->a_vals[ i ] );
 668                                         if ( a->a_nvals != a->a_vals ) {
 669                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 670                                                 BER_BVZERO( &a->a_nvals[ i ] );
 671                                         }
 672                                         if ( j - i == 1 ) {
 673                                                 break;
 674                                         }
 675
 676                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 677                                                 sizeof( struct berval ) * ( j - i ) );
 678                                         if ( a->a_nvals != a->a_vals ) {
 679                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 680                                                         sizeof( struct berval ) * ( j - i ) );
 681                                         }
 682                                         i--;
 683                                 }
 684
 685                                 continue;
 686                         }
 687
 688                         /* access is checked with the original identity */
 689                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 690                         rc = access_allowed( op, e, mo->mo_ad_member,
 691                                         &op->o_req_ndn, ACL_WADD, NULL );
 692                         be_entry_release_r( op, e );
 693                         op->o_bd->bd_info = (BackendInfo *)on;
 694
 695                         if ( !rc ) {
 696                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 697                                 rs->sr_text = "insufficient access to object referenced by memberof";
 698                                 send_ldap_result( op, rs );
 699                                 goto done;
 700                         }
 701                 }
 702
 703                 if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 704                         *map = a->a_next;
 705                         attr_free( a );
 706                 }
 707         }
 708
 709         rc = SLAP_CB_CONTINUE;
 710
 711 done:;
 712         op->o_dn = save_dn;
 713         op->o_ndn = save_ndn;
 714         op->o_bd->bd_info = (BackendInfo *)on;
 715
 716         return rc;
 717 }
 718
 719 static int
 720 memberof_op_delete( Operation *op, SlapReply *rs )
 721 {
 722         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 723         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 724
 725         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
 726
 727         if ( MEMBEROF_REFINT( mo ) ) {
 728                 iswhat = MEMBEROF_IS_BOTH;
 729         }
 730
 731         memberof_isGroupOrMember( op, &iswhat );
 732
 733         return SLAP_CB_CONTINUE;
 734 }
 735
 736 static int
 737 memberof_op_modify( Operation *op, SlapReply *rs )
 738 {
 739         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 740         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 741
 742         Modifications   **mlp, **mmlp = NULL;
 743         int             rc = SLAP_CB_CONTINUE;
 744         struct berval   save_dn, save_ndn;
 745         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
 746
 747         if ( MEMBEROF_REVERSE( mo ) ) {
 748                 for ( mlp = &op->orm_modlist; *mlp; mlp = &(*mlp)->sml_next ) {
 749                         Modifications   *ml = *mlp;
 750
 751                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
 752                                 mmlp = mlp;
 753                                 break;
 754                         }
 755                 }
 756         }
 757
 758         save_dn = op->o_dn;
 759         save_ndn = op->o_ndn;
 760
 761         if ( memberof_isGroupOrMember( op, &iswhat ) == LDAP_SUCCESS
 762                 && ( iswhat & MEMBEROF_IS_GROUP ) )
 763         {
 764                 Modifications *ml;
 765                 int save_member = 0;
 766
 767                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 768                         if ( ml->sml_desc == mo->mo_ad_member ) {
 769                                 switch ( ml->sml_op ) {
 770                                 case LDAP_MOD_DELETE:
 771                                 case LDAP_MOD_REPLACE:
 772                                         save_member = 1;
 773                                         break;
 774                                 }
 775                         }
 776                 }
 777
 778                 if ( save_member ) {
 779                         BerVarray       vals = NULL;
 780
 781                         op->o_dn = op->o_bd->be_rootdn;
 782                         op->o_dn = op->o_bd->be_rootndn;
 783                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 784                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
 785                                         mo->mo_ad_member, &vals, ACL_READ );
 786                         op->o_bd->bd_info = (BackendInfo *)on;
 787                         if ( rc == LDAP_SUCCESS && vals != NULL ) {
 788                                 memberof_saved_member_set( op, &saved_member_vals, vals );
 789                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
 790                         }
 791                 }
 792
 793                 if ( MEMBEROF_DANGLING_CHECK( mo )
 794                                 && !get_relax( op ) )
 795                 {
 796                         op->o_dn = op->o_bd->be_rootdn;
 797                         op->o_dn = op->o_bd->be_rootndn;
 798                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 799
 800                         assert( op->orm_modlist != NULL );
 801
 802                         for ( mlp = &op->orm_modlist; *mlp; ) {
 803                                 Modifications   *ml = *mlp;
 804                                 int             i;
 805
 806                                 if ( !is_ad_subtype( ml->sml_desc, mo->mo_ad_member ) ) {
 807                                         mlp = &ml->sml_next;
 808                                         continue;
 809                                 }
 810
 811                                 switch ( ml->sml_op ) {
 812                                 case LDAP_MOD_DELETE:
 813                                         /* we don't care about cancellations: if the value
 814                                          * exists, fine; if it doesn't, we let the underlying
 815                                          * database fail as appropriate; */
 816                                         mlp = &ml->sml_next;
 817                                         break;
 818
 819                                 case LDAP_MOD_REPLACE:
 820                                 case LDAP_MOD_ADD:
 821                                         /* NOTE: right now, the attributeType we use
 822                                          * for member must have a normalized value */
 823                                         assert( ml->sml_nvalues != NULL );
 824
 825                                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 826                                                 int             rc;
 827                                                 Entry           *e;
 828
 829                                                 if ( be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 830                                                                 NULL, NULL, 0, &e ) == LDAP_SUCCESS )
 831                                                 {
 832                                                         be_entry_release_r( op, e );
 833                                                         continue;
 834                                                 }
 835
 836                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 837                                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 838                                                         rs->sr_text = "adding non-existing object "
 839                                                                 "as group member";
 840                                                         send_ldap_result( op, rs );
 841                                                         goto done;
 842                                                 }
 843
 844                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 845                                                         int     j;
 846
 847                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 848                                                                 "member=\"%s\" does not exist (stripping...)\n",
 849                                                                 op->o_log_prefix, op->o_req_dn.bv_val,
 850                                                                 ml->sml_nvalues[ i ].bv_val );
 851
 852                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 853                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 854                                                         BER_BVZERO( &ml->sml_values[ i ] );
 855                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
 856                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
 857                                                         ml->sml_numvals--;
 858                                                         if ( j - i == 1 ) {
 859                                                                 break;
 860                                                         }
 861
 862                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 863                                                                 sizeof( struct berval ) * ( j - i ) );
 864                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 865                                                                 sizeof( struct berval ) * ( j - i ) );
 866                                                         i--;
 867                                                 }
 868                                         }
 869
 870                                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 871                                                 *mlp = ml->sml_next;
 872                                                 slap_mod_free( &ml->sml_mod, 0 );
 873                                                 free( ml );
 874
 875                                         } else {
 876                                                 mlp = &ml->sml_next;
 877                                         }
 878
 879                                         break;
 880
 881                                 default:
 882                                         assert( 0 );
 883                                 }
 884                         }
 885                 }
 886         }
 887
 888         if ( mmlp != NULL ) {
 889                 Modifications   *ml = *mmlp;
 890                 int             i;
 891                 Entry           *target;
 892
 893                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 894                 rc = be_entry_get_rw( op, &op->o_req_ndn,
 895                                 NULL, NULL, 0, &target );
 896                 op->o_bd->bd_info = (BackendInfo *)on;
 897                 if ( rc != LDAP_SUCCESS ) {
 898                         rc = rs->sr_err = LDAP_NO_SUCH_OBJECT;
 899                         send_ldap_result( op, rs );
 900                         goto done;
 901                 }
 902
 903                 switch ( ml->sml_op ) {
 904                 case LDAP_MOD_DELETE:
 905                         if ( ml->sml_nvalues != NULL ) {
 906                                 AccessControlState      acl_state = ACL_STATE_INIT;
 907
 908                                 for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 909                                         Entry           *e;
 910
 911                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 912                                         /* access is checked with the original identity */
 913                                         rc = access_allowed( op, target,
 914                                                         mo->mo_ad_memberof,
 915                                                         &ml->sml_nvalues[ i ],
 916                                                         ACL_WDEL,
 917                                                         &acl_state );
 918                                         if ( rc == 0 ) {
 919                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 920                                                 rs->sr_text = NULL;
 921                                                 send_ldap_result( op, rs );
 922                                                 goto done2;
 923                                         }
 924
 925                                         rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 926                                                         NULL, NULL, 0, &e );
 927                                         op->o_bd->bd_info = (BackendInfo *)on;
 928                                         if ( rc != LDAP_SUCCESS ) {
 929                                                 if ( get_relax( op ) ) {
 930                                                         continue;
 931                                                 }
 932
 933                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 934                                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 935                                                         rs->sr_text = "deleting non-existing object "
 936                                                                 "as memberof";
 937                                                         send_ldap_result( op, rs );
 938                                                         goto done2;
 939                                                 }
 940
 941                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 942                                                         int     j;
 943
 944                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 945                                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 946                                                                 op->o_log_prefix, op->o_req_ndn.bv_val,
 947                                                                 ml->sml_nvalues[ i ].bv_val );
 948
 949                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 950                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 951                                                         BER_BVZERO( &ml->sml_values[ i ] );
 952                                                         if ( ml->sml_nvalues != ml->sml_values ) {
 953                                                                 ber_memfree( ml->sml_nvalues[ i ].bv_val );
 954                                                                 BER_BVZERO( &ml->sml_nvalues[ i ] );
 955                                                         }
 956                                                         ml->sml_numvals--;
 957                                                         if ( j - i == 1 ) {
 958                                                                 break;
 959                                                         }
 960
 961                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 962                                                                 sizeof( struct berval ) * ( j - i ) );
 963                                                         if ( ml->sml_nvalues != ml->sml_values ) {
 964                                                                 AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 965                                                                         sizeof( struct berval ) * ( j - i ) );
 966                                                         }
 967                                                         i--;
 968                                                 }
 969
 970                                                 continue;
 971                                         }
 972
 973                                         /* access is checked with the original identity */
 974                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 975                                         rc = access_allowed( op, e, mo->mo_ad_member,
 976                                                         &op->o_req_ndn,
 977                                                         ACL_WDEL, NULL );
 978                                         be_entry_release_r( op, e );
 979                                         op->o_bd->bd_info = (BackendInfo *)on;
 980
 981                                         if ( !rc ) {
 982                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 983                                                 rs->sr_text = "insufficient access to object referenced by memberof";
 984                                                 send_ldap_result( op, rs );
 985                                                 goto done;
 986                                         }
 987                                 }
 988
 989                                 if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 990                                         *mmlp = ml->sml_next;
 991                                         slap_mod_free( &ml->sml_mod, 0 );
 992                                         free( ml );
 993                                 }
 994
 995                                 break;
 996                         }
 997                         /* fall thru */
 998
 999                 case LDAP_MOD_REPLACE:
1000
1001                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1002                         /* access is checked with the original identity */
1003                         rc = access_allowed( op, target,
1004                                         mo->mo_ad_memberof,
1005                                         NULL,
1006                                         ACL_WDEL, NULL );
1007                         op->o_bd->bd_info = (BackendInfo *)on;
1008                         if ( rc == 0 ) {
1009                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1010                                 rs->sr_text = NULL;
1011                                 send_ldap_result( op, rs );
1012                                 goto done2;
1013                         }
1014
1015                         if ( ml->sml_op == LDAP_MOD_DELETE ) {
1016                                 break;
1017                         }
1018                         /* fall thru */
1019
1020                 case LDAP_MOD_ADD: {
1021                         AccessControlState      acl_state = ACL_STATE_INIT;
1022
1023                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
1024                                 Entry           *e;
1025
1026                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1027                                 /* access is checked with the original identity */
1028                                 rc = access_allowed( op, target,
1029                                                 mo->mo_ad_memberof,
1030                                                 &ml->sml_nvalues[ i ],
1031                                                 ACL_WADD,
1032                                                 &acl_state );
1033                                 if ( rc == 0 ) {
1034                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1035                                         rs->sr_text = NULL;
1036                                         send_ldap_result( op, rs );
1037                                         goto done2;
1038                                 }
1039
1040                                 rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
1041                                                 NULL, NULL, 0, &e );
1042                                 op->o_bd->bd_info = (BackendInfo *)on;
1043                                 if ( rc != LDAP_SUCCESS ) {
1044                                         if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
1045                                                 rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
1046                                                 rs->sr_text = "adding non-existing object "
1047                                                         "as memberof";
1048                                                 send_ldap_result( op, rs );
1049                                                 goto done2;
1050                                         }
1051
1052                                         if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1053                                                 int     j;
1054
1055                                                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1056                                                         "memberof=\"%s\" does not exist (stripping...)\n",
1057                                                         op->o_log_prefix, op->o_req_ndn.bv_val,
1058                                                         ml->sml_nvalues[ i ].bv_val );
1059
1060                                                 for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1061                                                 ber_memfree( ml->sml_values[ i ].bv_val );
1062                                                 BER_BVZERO( &ml->sml_values[ i ] );
1063                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1064                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
1065                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
1066                                                 }
1067                                                 ml->sml_numvals--;
1068                                                 if ( j - i == 1 ) {
1069                                                         break;
1070                                                 }
1071
1072                                                 AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1073                                                         sizeof( struct berval ) * ( j - i ) );
1074                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1075                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1076                                                                 sizeof( struct berval ) * ( j - i ) );
1077                                                 }
1078                                                 i--;
1079                                         }
1080
1081                                         continue;
1082                                 }
1083
1084                                 /* access is checked with the original identity */
1085                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1086                                 rc = access_allowed( op, e, mo->mo_ad_member,
1087                                                 &op->o_req_ndn,
1088                                                 ACL_WDEL, NULL );
1089                                 be_entry_release_r( op, e );
1090                                 op->o_bd->bd_info = (BackendInfo *)on;
1091
1092                                 if ( !rc ) {
1093                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1094                                         rs->sr_text = "insufficient access to object referenced by memberof";
1095                                         send_ldap_result( op, rs );
1096                                         goto done;
1097                                 }
1098                         }
1099
1100                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1101                                 *mmlp = ml->sml_next;
1102                                 slap_mod_free( &ml->sml_mod, 0 );
1103                                 free( ml );
1104                         }
1105
1106                         } break;
1107
1108                 default:
1109                         assert( 0 );
1110                 }
1111
1112 done2:;
1113                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1114                 be_entry_release_r( op, target );
1115                 op->o_bd->bd_info = (BackendInfo *)on;
1116         }
1117
1118         rc = SLAP_CB_CONTINUE;
1119
1120 done:;
1121         op->o_dn = save_dn;
1122         op->o_ndn = save_ndn;
1123         op->o_bd->bd_info = (BackendInfo *)on;
1124
1125         return rc;
1126 }
1127
1128 /*
1129  * response callback that adds memberof values when a group is added.
1130  */
1131 static int
1132 memberof_res_add( Operation *op, SlapReply *rs )
1133 {
1134         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1135         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1136
1137         int             i;
1138
1139         if ( MEMBEROF_REVERSE( mo ) ) {
1140                 Attribute       *ma;
1141
1142                 ma = attr_find( op->ora_e->e_attrs, mo->mo_ad_memberof );
1143                 if ( ma != NULL ) {
1144                         Operation       op2 = *op;
1145                         SlapReply       rs2 = { 0 };
1146
1147                         /* relax is required to allow to add
1148                          * a non-existing member */
1149                         op2.o_relax = SLAP_CONTROL_CRITICAL;
1150
1151                         for ( i = 0; !BER_BVISNULL( &ma->a_nvals[ i ] ); i++ ) {
1152
1153                                 /* the modification is attempted
1154                                  * with the original identity */
1155                                 (void)memberof_value_modify( &op2, &rs2,
1156                                         &ma->a_nvals[ i ], mo->mo_ad_member,
1157                                         NULL, NULL, &op->o_req_dn, &op->o_req_ndn );
1158                         }
1159                 }
1160         }
1161
1162         if ( is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) ) {
1163                 Attribute       *a;
1164
1165                 for ( a = attrs_find( op->ora_e->e_attrs, mo->mo_ad_member );
1166                                 a != NULL;
1167                                 a = attrs_find( a->a_next, mo->mo_ad_member ) )
1168                 {
1169                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
1170                                 (void)memberof_value_modify( op, rs,
1171                                                 &a->a_nvals[ i ],
1172                                                 mo->mo_ad_memberof,
1173                                                 NULL, NULL,
1174                                                 &op->o_req_dn,
1175                                                 &op->o_req_ndn );
1176                         }
1177                 }
1178         }
1179
1180         return SLAP_CB_CONTINUE;
1181 }
1182
1183 /*
1184  * response callback that deletes memberof values when a group is deleted.
1185  */
1186 static int
1187 memberof_res_delete( Operation *op, SlapReply *rs )
1188 {
1189         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1190         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1191
1192         BerVarray       vals;
1193         int             i;
1194
1195         vals = memberof_saved_member_get( op, &saved_member_vals );
1196         if ( vals != NULL ) {
1197                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1198                         (void)memberof_value_modify( op, rs,
1199                                         &vals[ i ], mo->mo_ad_memberof,
1200                                         &op->o_req_dn, &op->o_req_ndn,
1201                                         NULL, NULL );
1202                 }
1203
1204                 ber_bvarray_free( vals );
1205         }
1206
1207         if ( MEMBEROF_REFINT( mo ) ) {
1208                 vals = memberof_saved_member_get( op, &saved_memberof_vals );
1209                 if ( vals != NULL ) {
1210                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1211                                 (void)memberof_value_modify( op, rs,
1212                                                 &vals[ i ], mo->mo_ad_member,
1213                                                 &op->o_req_dn, &op->o_req_ndn,
1214                                                 NULL, NULL );
1215                         }
1216
1217                         ber_bvarray_free( vals );
1218                 }
1219         }
1220
1221         return SLAP_CB_CONTINUE;
1222 }
1223
1224 /*
1225  * response callback that adds/deletes memberof values when a group
1226  * is modified.
1227  */
1228 static int
1229 memberof_res_modify( Operation *op, SlapReply *rs )
1230 {
1231         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1232         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1233
1234         int             i, rc;
1235         Modifications   *ml, *mml = NULL;
1236         BerVarray       vals;
1237         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
1238
1239         if ( MEMBEROF_REVERSE( mo ) ) {
1240                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1241                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
1242                                 mml = ml;
1243                                 break;
1244                         }
1245                 }
1246         }
1247
1248         if ( mml != NULL ) {
1249                 BerVarray       vals = mml->sml_nvalues;
1250
1251                 switch ( mml->sml_op ) {
1252                 case LDAP_MOD_DELETE:
1253                         if ( vals != NULL ) {
1254                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1255                                         memberof_value_modify( op, rs,
1256                                                         &vals[ i ], mo->mo_ad_member,
1257                                                         &op->o_req_dn, &op->o_req_ndn,
1258                                                         NULL, NULL );
1259                                 }
1260                                 break;
1261                         }
1262                         /* fall thru */
1263
1264                 case LDAP_MOD_REPLACE:
1265                         /* delete all ... */
1266                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1267                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
1268                                         mo->mo_ad_memberof, &vals, ACL_READ );
1269                         op->o_bd->bd_info = (BackendInfo *)on;
1270                         if ( rc == LDAP_SUCCESS ) {
1271                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1272                                         (void)memberof_value_modify( op, rs,
1273                                                         &vals[ i ], mo->mo_ad_member,
1274                                                         &op->o_req_dn, &op->o_req_ndn,
1275                                                         NULL, NULL );
1276                                 }
1277                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
1278                         }
1279
1280                         if ( ml->sml_op == LDAP_MOD_DELETE ) {
1281                                 break;
1282                         }
1283                         /* fall thru */
1284
1285                 case LDAP_MOD_ADD:
1286                         assert( vals != NULL );
1287
1288                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1289                                 memberof_value_modify( op, rs,
1290                                                 &vals[ i ], mo->mo_ad_member,
1291                                                 NULL, NULL,
1292                                                 &op->o_req_dn, &op->o_req_ndn );
1293                         }
1294                         break;
1295
1296                 default:
1297                         assert( 0 );
1298                 }
1299         }
1300
1301         if ( memberof_isGroupOrMember( op, &iswhat ) == LDAP_SUCCESS
1302                         && ( iswhat & MEMBEROF_IS_GROUP ) )
1303         {
1304                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1305                         if ( ml->sml_desc != mo->mo_ad_member ) {
1306                                 continue;
1307                         }
1308
1309                         switch ( ml->sml_op ) {
1310                         case LDAP_MOD_DELETE:
1311                                 vals = ml->sml_nvalues;
1312                                 if ( vals != NULL ) {
1313                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1314                                                 memberof_value_modify( op, rs,
1315                                                                 &vals[ i ], mo->mo_ad_memberof,
1316                                                                 &op->o_req_dn, &op->o_req_ndn,
1317                                                                 NULL, NULL );
1318                                         }
1319                                         break;
1320                                 }
1321                                 /* fall thru */
1322
1323                         case LDAP_MOD_REPLACE:
1324                                 vals = memberof_saved_member_get( op, &saved_member_vals );
1325
1326                                 /* delete all ... */
1327                                 if ( vals != NULL ) {
1328                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1329                                                 (void)memberof_value_modify( op, rs,
1330                                                                 &vals[ i ], mo->mo_ad_memberof,
1331                                                                 &op->o_req_dn, &op->o_req_ndn,
1332                                                                 NULL, NULL );
1333                                         }
1334                                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1335                                 }
1336
1337                                 if ( ml->sml_op == LDAP_MOD_DELETE ) {
1338                                         break;
1339                                 }
1340                                 /* fall thru */
1341
1342                         case LDAP_MOD_ADD:
1343                                 assert( ml->sml_nvalues != NULL );
1344                                 vals = ml->sml_nvalues;
1345                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1346                                         memberof_value_modify( op, rs,
1347                                                         &vals[ i ], mo->mo_ad_memberof,
1348                                                         NULL, NULL,
1349                                                         &op->o_req_dn, &op->o_req_ndn );
1350                                 }
1351                                 break;
1352
1353                         default:
1354                                 assert( 0 );
1355                         }
1356                 }
1357         }
1358
1359         return SLAP_CB_CONTINUE;
1360 }
1361
1362 /*
1363  * response callback that adds/deletes member values when a group member
1364  * is modified.
1365  */
1366 static int
1367 memberof_res_rename( Operation *op, SlapReply *rs )
1368 {
1369         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1370         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1371
1372         struct berval   newPDN, newDN = BER_BVNULL, newPNDN, newNDN;
1373         int             i, rc;
1374         BerVarray       vals;
1375
1376         struct berval   save_dn, save_ndn;
1377         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
1378
1379         if ( MEMBEROF_REFINT( mo ) ) {
1380                 iswhat |= MEMBEROF_IS_MEMBER;
1381         }
1382
1383         if ( op->orr_nnewSup ) {
1384                 newPNDN = *op->orr_nnewSup;
1385
1386         } else {
1387                 dnParent( &op->o_req_ndn, &newPNDN );
1388         }
1389
1390         build_new_dn( &newNDN, &newPNDN, &op->orr_nnewrdn, op->o_tmpmemctx );
1391
1392         save_dn = op->o_req_dn;
1393         save_ndn = op->o_req_ndn;
1394
1395         op->o_req_dn = newNDN;
1396         op->o_req_ndn = newNDN;
1397         rc = memberof_isGroupOrMember( op, &iswhat );
1398         op->o_req_dn = save_dn;
1399         op->o_req_ndn = save_ndn;
1400
1401         if ( rc != LDAP_SUCCESS || iswhat == MEMBEROF_IS_NONE ) {
1402                 goto done;
1403         }
1404
1405         if ( op->orr_newSup ) {
1406                 newPDN = *op->orr_newSup;
1407
1408         } else {
1409                 dnParent( &op->o_req_dn, &newPDN );
1410         }
1411
1412         build_new_dn( &newDN, &newPDN, &op->orr_newrdn, op->o_tmpmemctx );
1413
1414         if ( iswhat & MEMBEROF_IS_GROUP ) {
1415                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1416                 rc = backend_attribute( op, NULL, &newNDN,
1417                                 mo->mo_ad_member, &vals, ACL_READ );
1418                 op->o_bd->bd_info = (BackendInfo *)on;
1419
1420                 if ( rc == LDAP_SUCCESS ) {
1421                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1422                                 (void)memberof_value_modify( op, rs,
1423                                                 &vals[ i ], mo->mo_ad_memberof,
1424                                                 &op->o_req_dn, &op->o_req_ndn,
1425                                                 &newDN, &newNDN );
1426                         }
1427                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1428                 }
1429         }
1430
1431         if ( MEMBEROF_REFINT( mo ) && ( iswhat & MEMBEROF_IS_MEMBER ) ) {
1432                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1433                 rc = backend_attribute( op, NULL, &newNDN,
1434                                 mo->mo_ad_memberof, &vals, ACL_READ );
1435                 op->o_bd->bd_info = (BackendInfo *)on;
1436
1437                 if ( rc == LDAP_SUCCESS ) {
1438                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1439                                 (void)memberof_value_modify( op, rs,
1440                                                 &vals[ i ], mo->mo_ad_member,
1441                                                 &op->o_req_dn, &op->o_req_ndn,
1442                                                 &newDN, &newNDN );
1443                         }
1444                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1445                 }
1446         }
1447
1448 done:;
1449         if ( !BER_BVISNULL( &newDN ) ) {
1450                 op->o_tmpfree( newDN.bv_val, op->o_tmpmemctx );
1451         }
1452         op->o_tmpfree( newNDN.bv_val, op->o_tmpmemctx );
1453
1454         return SLAP_CB_CONTINUE;
1455 }
1456
1457 static int
1458 memberof_response( Operation *op, SlapReply *rs )
1459 {
1460         if ( rs->sr_err != LDAP_SUCCESS ) {
1461                 return SLAP_CB_CONTINUE;
1462         }
1463
1464         switch ( op->o_tag ) {
1465         case LDAP_REQ_ADD:
1466                 return memberof_res_add( op, rs );
1467
1468         case LDAP_REQ_DELETE:
1469                 return memberof_res_delete( op, rs );
1470
1471         case LDAP_REQ_MODIFY:
1472                 return memberof_res_modify( op, rs );
1473
1474         case LDAP_REQ_MODDN:
1475                 return memberof_res_rename( op, rs );
1476
1477         default:
1478                 return SLAP_CB_CONTINUE;
1479         }
1480 }
1481
1482 static int
1483 memberof_db_init(
1484         BackendDB       *be,
1485         ConfigReply     *cr )
1486 {
1487         slap_overinst   *on = (slap_overinst *)be->bd_info;
1488         memberof_t      tmp_mo = { 0 }, *mo;
1489
1490         mo = (memberof_t *)ch_calloc( 1, sizeof( memberof_t ) );
1491         on->on_bi.bi_private = (void *)mo;
1492
1493         return 0;
1494 }
1495
1496 enum {
1497         MO_DN = 1,
1498         MO_DANGLING,
1499         MO_REFINT,
1500 #if 0
1501         MO_REVERSE,
1502 #endif
1503         MO_GROUP_OC,
1504         MO_MEMBER_AD,
1505         MO_MEMBER_OF_AD
1506 };
1507
1508 static ConfigDriver mo_cf_gen;
1509
1510 #define OID             "1.3.6.1.4.1.7136.2.666.4"
1511 #define OIDAT           OID ".1.1"
1512 #define OIDCFGAT        OID ".1.2"
1513 #define OIDOC           OID ".2.1"
1514 #define OIDCFGOC        OID ".2.2"
1515
1516
1517 static ConfigTable mo_cfg[] = {
1518         { "memberof-dn", "modifiersName",
1519                 2, 2, 0, ARG_MAGIC|ARG_DN|MO_DN, mo_cf_gen,
1520                 "( OLcfgOvAt:18.0 NAME 'olcMemberOfDN' "
1521                         "DESC 'DN to be used as modifiersName' "
1522                         "SYNTAX OMsDN SINGLE-VALUE )",
1523                 NULL, NULL },
1524
1525         { "memberof-dangling", "ignore|drop|error",
1526                 2, 2, 0, ARG_MAGIC|MO_DANGLING, mo_cf_gen,
1527                 "( OLcfgOvAt:18.1 NAME 'olcMemberOfDangling' "
1528                         "DESC 'Behavior with respect to dangling members, "
1529                                 "constrained to ignore, drop, error' "
1530                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1531                 NULL, NULL },
1532
1533         { "memberof-refint", "true|FALSE",
1534                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REFINT, mo_cf_gen,
1535                 "( OLcfgOvAt:18.2 NAME 'olcMemberOfRefInt' "
1536                         "DESC 'Take care of referential integrity' "
1537                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1538                 NULL, NULL },
1539
1540         { "memberof-group-oc", "objectClass",
1541                 2, 2, 0, ARG_MAGIC|MO_GROUP_OC, mo_cf_gen,
1542                 "( OLcfgOvAt:18.3 NAME 'olcMemberOfGroupOC' "
1543                         "DESC 'Group objectClass' "
1544                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1545                 NULL, NULL },
1546
1547         { "memberof-member-ad", "member attribute",
1548                 2, 2, 0, ARG_MAGIC|MO_MEMBER_AD, mo_cf_gen,
1549                 "( OLcfgOvAt:18.4 NAME 'olcMemberOfMemberAD' "
1550                         "DESC 'member attribute' "
1551                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1552                 NULL, NULL },
1553
1554         { "memberof-memberof-ad", "memberOf attribute",
1555                 2, 2, 0, ARG_MAGIC|MO_MEMBER_OF_AD, mo_cf_gen,
1556                 "( OLcfgOvAt:18.5 NAME 'olcMemberOfMemberOfAD' "
1557                         "DESC 'memberOf attribute' "
1558                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1559                 NULL, NULL },
1560
1561 #if 0
1562         { "memberof-reverse", "true|FALSE",
1563                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REVERSE, mo_cf_gen,
1564                 "( OLcfgOvAt:18.6 NAME 'olcMemberOfReverse' "
1565                         "DESC 'Take care of referential integrity "
1566                                 "also when directly modifying memberOf' "
1567                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1568                 NULL, NULL },
1569 #endif
1570
1571         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1572 };
1573
1574 static ConfigOCs mo_ocs[] = {
1575         { "( OLcfgOvOc:18.1 "
1576                 "NAME 'olcMemberOf' "
1577                 "DESC 'Member-of configuration' "
1578                 "SUP olcOverlayConfig "
1579                 "MAY ( "
1580                         "olcMemberOfDN "
1581                         "$ olcMemberOfDangling "
1582                         "$ olcMemberOfRefInt "
1583                         "$ olcMemberOfGroupOC "
1584                         "$ olcMemberOfMemberAD "
1585                         "$ olcMemberOfMemberOfAD "
1586 #if 0
1587                         "$ olcMemberOfReverse "
1588 #endif
1589                         ") "
1590                 ")",
1591                 Cft_Overlay, mo_cfg, NULL, NULL },
1592         { NULL, 0, NULL }
1593 };
1594
1595 static slap_verbmasks dangling_mode[] = {
1596         { BER_BVC( "ignore" ),          MEMBEROF_NONE },
1597         { BER_BVC( "drop" ),            MEMBEROF_FDANGLING_DROP },
1598         { BER_BVC( "error" ),           MEMBEROF_FDANGLING_ERROR },
1599         { BER_BVNULL,                   0 }
1600 };
1601
1602 static int
1603 memberof_make_group_filter( memberof_t *mo )
1604 {
1605         char            *ptr;
1606
1607         if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1608                 ch_free( mo->mo_groupFilterstr.bv_val );
1609         }
1610
1611         mo->mo_groupFilter.f_choice = LDAP_FILTER_EQUALITY;
1612         mo->mo_groupFilter.f_ava = &mo->mo_groupAVA;
1613
1614         mo->mo_groupFilter.f_av_desc = slap_schema.si_ad_objectClass;
1615         mo->mo_groupFilter.f_av_value = mo->mo_oc_group->soc_cname;
1616
1617         mo->mo_groupFilterstr.bv_len = STRLENOF( "(=)" )
1618                 + slap_schema.si_ad_objectClass->ad_cname.bv_len
1619                 + mo->mo_oc_group->soc_cname.bv_len;
1620         ptr = mo->mo_groupFilterstr.bv_val = ch_malloc( mo->mo_groupFilterstr.bv_len + 1 );
1621         *ptr++ = '(';
1622         ptr = lutil_strcopy( ptr, slap_schema.si_ad_objectClass->ad_cname.bv_val );
1623         *ptr++ = '=';
1624         ptr = lutil_strcopy( ptr, mo->mo_oc_group->soc_cname.bv_val );
1625         *ptr++ = ')';
1626         *ptr = '\0';
1627
1628         return 0;
1629 }
1630
1631 static int
1632 memberof_make_member_filter( memberof_t *mo )
1633 {
1634         char            *ptr;
1635
1636         if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1637                 ch_free( mo->mo_memberFilterstr.bv_val );
1638         }
1639
1640         mo->mo_memberFilter.f_choice = LDAP_FILTER_PRESENT;
1641         mo->mo_memberFilter.f_desc = mo->mo_ad_memberof;
1642
1643         mo->mo_memberFilterstr.bv_len = STRLENOF( "(=*)" )
1644                 + mo->mo_ad_memberof->ad_cname.bv_len;
1645         ptr = mo->mo_memberFilterstr.bv_val = ch_malloc( mo->mo_memberFilterstr.bv_len + 1 );
1646         *ptr++ = '(';
1647         ptr = lutil_strcopy( ptr, mo->mo_ad_memberof->ad_cname.bv_val );
1648         ptr = lutil_strcopy( ptr, "=*)" );
1649
1650         return 0;
1651 }
1652
1653 static int
1654 mo_cf_gen( ConfigArgs *c )
1655 {
1656         slap_overinst   *on = (slap_overinst *)c->bi;
1657         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1658
1659         int             i, rc = 0;
1660
1661         if ( c->op == SLAP_CONFIG_EMIT ) {
1662                 struct berval bv = BER_BVNULL;
1663
1664                 switch( c->type ) {
1665                 case MO_DN:
1666                         if ( mo->mo_dn.bv_val != NULL) {
1667                                 value_add_one( &c->rvalue_vals, &mo->mo_dn );
1668                                 value_add_one( &c->rvalue_nvals, &mo->mo_ndn );
1669                         }
1670                         break;
1671
1672                 case MO_DANGLING:
1673                         enum_to_verb( dangling_mode, (mo->mo_flags & MEMBEROF_FDANGLING_MASK), &bv );
1674                         if ( BER_BVISNULL( &bv ) ) {
1675                                 /* there's something wrong... */
1676                                 assert( 0 );
1677                                 rc = 1;
1678
1679                         } else {
1680                                 value_add_one( &c->rvalue_vals, &bv );
1681                         }
1682                         break;
1683
1684                 case MO_REFINT:
1685                         c->value_int = MEMBEROF_REFINT( mo );
1686                         break;
1687
1688 #if 0
1689                 case MO_REVERSE:
1690                         c->value_int = MEMBEROF_REVERSE( mo );
1691                         break;
1692 #endif
1693
1694                 case MO_GROUP_OC:
1695                         if ( mo->mo_oc_group != NULL ){
1696                                 value_add_one( &c->rvalue_vals, &mo->mo_oc_group->soc_cname );
1697                         }
1698                         break;
1699
1700                 case MO_MEMBER_AD:
1701                         if ( mo->mo_ad_member != NULL ){
1702                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_member->ad_cname );
1703                         }
1704                         break;
1705
1706                 case MO_MEMBER_OF_AD:
1707                         if ( mo->mo_ad_memberof != NULL ){
1708                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_memberof->ad_cname );
1709                         }
1710                         break;
1711
1712                 default:
1713                         assert( 0 );
1714                         return 1;
1715                 }
1716
1717                 return rc;
1718
1719         } else if ( c->op == LDAP_MOD_DELETE ) {
1720                 return 1;       /* FIXME */
1721
1722         } else {
1723                 switch( c->type ) {
1724                 case MO_DN:
1725                         if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1726                                 ber_memfree( mo->mo_dn.bv_val );
1727                                 ber_memfree( mo->mo_ndn.bv_val );
1728                         }
1729                         mo->mo_dn = c->value_dn;
1730                         mo->mo_ndn = c->value_ndn;
1731                         break;
1732
1733                 case MO_DANGLING:
1734                         i = verb_to_mask( c->argv[ 1 ], dangling_mode );
1735                         if ( BER_BVISNULL( &dangling_mode[ i ].word ) ) {
1736                                 return 1;
1737                         }
1738
1739                         mo->mo_flags &= ~MEMBEROF_FDANGLING_MASK;
1740                         mo->mo_flags |= dangling_mode[ i ].mask;
1741                         break;
1742
1743                 case MO_REFINT:
1744                         if ( c->value_int ) {
1745                                 mo->mo_flags |= MEMBEROF_FREFINT;
1746
1747                         } else {
1748                                 mo->mo_flags &= ~MEMBEROF_FREFINT;
1749                         }
1750                         break;
1751
1752 #if 0
1753                 case MO_REVERSE:
1754                         if ( c->value_int ) {
1755                                 mo->mo_flags |= MEMBEROF_FREVERSE;
1756
1757                         } else {
1758                                 mo->mo_flags &= ~MEMBEROF_FREVERSE;
1759                         }
1760                         break;
1761 #endif
1762
1763                 case MO_GROUP_OC: {
1764                         ObjectClass     *oc = NULL;
1765
1766                         oc = oc_find( c->argv[ 1 ] );
1767                         if ( oc == NULL ) {
1768                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1769                                         "unable to find group objectClass=\"%s\"",
1770                                         c->argv[ 1 ] );
1771                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1772                                         c->log, c->cr_msg, 0 );
1773                                 return 1;
1774                         }
1775
1776                         mo->mo_oc_group = oc;
1777                         memberof_make_group_filter( mo );
1778                         } break;
1779
1780                 case MO_MEMBER_AD: {
1781                         AttributeDescription    *ad = NULL;
1782                         const char              *text = NULL;
1783
1784
1785                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1786                         if ( rc != LDAP_SUCCESS ) {
1787                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1788                                         "unable to find member attribute=\"%s\": %s (%d)",
1789                                         c->argv[ 1 ], text, rc );
1790                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1791                                         c->log, c->cr_msg, 0 );
1792                                 return 1;
1793                         }
1794
1795                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1796                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1797                         {
1798                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1799                                         "member attribute=\"%s\" must either "
1800                                         "have DN (%s) or nameUID (%s) syntax",
1801                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1802                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1803                                         c->log, c->cr_msg, 0 );
1804                                 return 1;
1805                         }
1806
1807                         mo->mo_ad_member = ad;
1808                         } break;
1809
1810                 case MO_MEMBER_OF_AD: {
1811                         AttributeDescription    *ad = NULL;
1812                         const char              *text = NULL;
1813
1814
1815                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1816                         if ( rc != LDAP_SUCCESS ) {
1817                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1818                                         "unable to find memberof attribute=\"%s\": %s (%d)",
1819                                         c->argv[ 1 ], text, rc );
1820                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1821                                         c->log, c->cr_msg, 0 );
1822                                 return 1;
1823                         }
1824
1825                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1826                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1827                         {
1828                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1829                                         "memberof attribute=\"%s\" must either "
1830                                         "have DN (%s) or nameUID (%s) syntax",
1831                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1832                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1833                                         c->log, c->cr_msg, 0 );
1834                                 return 1;
1835                         }
1836
1837                         mo->mo_ad_memberof = ad;
1838                         memberof_make_member_filter( mo );
1839                         } break;
1840
1841                 default:
1842                         assert( 0 );
1843                         return 1;
1844                 }
1845         }
1846
1847         return 0;
1848 }
1849
1850 static int
1851 memberof_db_open(
1852         BackendDB       *be,
1853         ConfigReply     *cr )
1854 {
1855         slap_overinst   *on = (slap_overinst *)be->bd_info;
1856         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1857
1858         int             rc;
1859         const char      *text = NULL;
1860
1861         if( ! mo->mo_ad_memberof ){
1862                 rc = slap_str2ad( SLAPD_MEMBEROF_ATTR, &mo->mo_ad_memberof, &text );
1863                 if ( rc != LDAP_SUCCESS ) {
1864                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
1865                                         "unable to find attribute=\"%s\": %s (%d)\n",
1866                                         SLAPD_MEMBEROF_ATTR, text, rc );
1867                         return rc;
1868                 }
1869         }
1870
1871         if( ! mo->mo_ad_member ){
1872                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &mo->mo_ad_member, &text );
1873                 if ( rc != LDAP_SUCCESS ) {
1874                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
1875                                         "unable to find attribute=\"%s\": %s (%d)\n",
1876                                         SLAPD_GROUP_ATTR, text, rc );
1877                         return rc;
1878                 }
1879         }
1880
1881     if( ! mo->mo_oc_group ){
1882                 mo->mo_oc_group = oc_find( SLAPD_GROUP_CLASS );
1883                 if ( mo->mo_oc_group == NULL ) {
1884                         Debug( LDAP_DEBUG_ANY,
1885                                         "memberof_db_open: "
1886                                         "unable to find objectClass=\"%s\"\n",
1887                                         SLAPD_GROUP_CLASS, 0, 0 );
1888                         return 1;
1889                 }
1890         }
1891
1892         if ( BER_BVISNULL( &mo->mo_dn ) ) {
1893                 ber_dupbv( &mo->mo_dn, &be->be_rootdn );
1894                 ber_dupbv( &mo->mo_ndn, &be->be_rootndn );
1895         }
1896
1897         if ( BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1898                 memberof_make_group_filter( mo );
1899         }
1900
1901         if ( BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1902                 memberof_make_member_filter( mo );
1903         }
1904
1905         return 0;
1906 }
1907
1908 static int
1909 memberof_db_destroy(
1910         BackendDB       *be,
1911         ConfigReply     *cr )
1912 {
1913         slap_overinst   *on = (slap_overinst *)be->bd_info;
1914         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1915
1916         if ( mo ) {
1917                 if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1918                         ber_memfree( mo->mo_dn.bv_val );
1919                         ber_memfree( mo->mo_ndn.bv_val );
1920                 }
1921
1922                 if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1923                         ber_memfree( mo->mo_groupFilterstr.bv_val );
1924                 }
1925
1926                 if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1927                         ber_memfree( mo->mo_memberFilterstr.bv_val );
1928                 }
1929
1930                 ber_memfree( mo );
1931         }
1932
1933         return 0;
1934 }
1935
1936 /* unused */
1937 static AttributeDescription     *ad_memberOf;
1938
1939 static struct {
1940         char    *desc;
1941         AttributeDescription **adp;
1942 } as[] = {
1943         { "( 1.2.840.113556.1.2.102 "
1944                 "NAME 'memberOf' "
1945                 "DESC 'Group that the entry belongs to' "
1946                 "SYNTAX '1.3.6.1.4.1.1466.115.121.1.12' "
1947                 "EQUALITY distinguishedNameMatch "      /* added */
1948                 "USAGE dSAOperation "                   /* added; questioned */
1949                 /* "NO-USER-MODIFICATION " */           /* add? */
1950                 "X-ORIGIN 'iPlanet Delegated Administrator' )",
1951                 &ad_memberOf },
1952         { NULL }
1953 };
1954
1955 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
1956 static
1957 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
1958 int
1959 memberof_initialize( void )
1960 {
1961         int                     code, i;
1962
1963         for ( i = 0; as[ i ].desc != NULL; i++ ) {
1964                 code = register_at( as[ i ].desc, as[ i ].adp, 0 );
1965                 if ( code ) {
1966                         Debug( LDAP_DEBUG_ANY,
1967                                 "memberof_initialize: register_at #%d failed\n",
1968                                 i, 0, 0 );
1969                         return code;
1970                 }
1971         }
1972
1973         memberof.on_bi.bi_type = "memberof";
1974
1975         memberof.on_bi.bi_db_init = memberof_db_init;
1976         memberof.on_bi.bi_db_open = memberof_db_open;
1977         memberof.on_bi.bi_db_destroy = memberof_db_destroy;
1978
1979         memberof.on_bi.bi_op_add = memberof_op_add;
1980         memberof.on_bi.bi_op_delete = memberof_op_delete;
1981         memberof.on_bi.bi_op_modify = memberof_op_modify;
1982
1983         memberof.on_response = memberof_response;
1984
1985         memberof.on_bi.bi_cf_ocs = mo_ocs;
1986
1987         code = config_register_schema( mo_cfg, mo_ocs );
1988         if ( code ) return code;
1989
1990         return overlay_register( &memberof );
1991 }
1992
1993 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
1994 int
1995 init_module( int argc, char *argv[] )
1996 {
1997         return memberof_initialize();
1998 }
1999 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2000
2001 #endif /* SLAPD_OVER_MEMBEROF */