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                 BerVarray               vals = NULL;
 268
 269                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 270                 mc->foundit = 1;
 271
 272                 assert( rs->sr_entry != NULL );
 273                 assert( rs->sr_entry->e_attrs != NULL );
 274
 275                 a = attr_find( rs->sr_entry->e_attrs, mc->ad );
 276                 if ( a != NULL ) {
 277                         vals = a->a_nvals;
 278                 }
 279
 280                 memberof_saved_member_set( op, mc->key, vals );
 281
 282                 if ( a && attr_find( a->a_next, mc->ad ) != NULL ) {
 283                         Debug( LDAP_DEBUG_ANY,
 284                                 "%s: memberof_saveMember_cb(\"%s\"): "
 285                                 "more than one occurrence of \"%s\" "
 286                                 "attribute.\n",
 287                                 op->o_log_prefix,
 288                                 rs->sr_entry->e_name.bv_val,
 289                                 mc->ad->ad_cname.bv_val );
 290                 }
 291         }
 292
 293         return 0;
 294 }
 295
 296 /*
 297  * the delete hook performs an internal search that saves the member
 298  * attribute values of groups being deleted.
 299  */
 300 static int
 301 memberof_isGroupOrMember( Operation *op, memberof_is_t *iswhatp )
 302 {
 303         slap_overinst           *on = (slap_overinst *)op->o_bd->bd_info;
 304         memberof_t              *mo = (memberof_t *)on->on_bi.bi_private;
 305
 306         Operation               op2 = *op;
 307         SlapReply               rs2 = { REP_RESULT };
 308         slap_callback           cb = { 0 };
 309         memberof_cookie_t       mc;
 310         AttributeName           an[ 2 ];
 311
 312         memberof_is_t           iswhat = MEMBEROF_IS_NONE;
 313
 314         assert( iswhatp != NULL );
 315         assert( *iswhatp != MEMBEROF_IS_NONE );
 316
 317         cb.sc_private = &mc;
 318         if ( op->o_tag == LDAP_REQ_DELETE ) {
 319                 cb.sc_response = memberof_saveMember_cb;
 320
 321         } else {
 322                 cb.sc_response = memberof_isGroupOrMember_cb;
 323         }
 324
 325         op2.o_tag = LDAP_REQ_SEARCH;
 326         op2.o_callback = &cb;
 327         op2.o_dn = op->o_bd->be_rootdn;
 328         op2.o_ndn = op->o_bd->be_rootndn;
 329
 330         op2.ors_scope = LDAP_SCOPE_BASE;
 331         op2.ors_deref = LDAP_DEREF_NEVER;
 332         BER_BVZERO( &an[ 1 ].an_name );
 333         op2.ors_attrs = an;
 334         op2.ors_attrsonly = 0;
 335         op2.ors_limit = NULL;
 336         op2.ors_slimit = 1;
 337         op2.ors_tlimit = SLAP_NO_LIMIT;
 338
 339         if ( *iswhatp & MEMBEROF_IS_GROUP ) {
 340                 mc.ad = mo->mo_ad_member;
 341                 mc.key = &saved_member_vals;
 342                 mc.foundit = 0;
 343                 an[ 0 ].an_desc = mo->mo_ad_member;
 344                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 345                 op2.ors_filterstr = mo->mo_groupFilterstr;
 346                 op2.ors_filter = &mo->mo_groupFilter;
 347
 348                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 349                 (void)op->o_bd->be_search( &op2, &rs2 );
 350                 op2.o_bd->bd_info = (BackendInfo *)on;
 351
 352                 if ( mc.foundit ) {
 353                         iswhat |= MEMBEROF_IS_GROUP;
 354
 355                 } else {
 356                         memberof_saved_member_set( op, mc.key, NULL );
 357                 }
 358         }
 359
 360         if ( *iswhatp & MEMBEROF_IS_MEMBER ) {
 361                 mc.ad = mo->mo_ad_memberof;
 362                 mc.key = &saved_memberof_vals;
 363                 mc.foundit = 0;
 364                 an[ 0 ].an_desc = mo->mo_ad_memberof;
 365                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 366                 op2.ors_filterstr = mo->mo_memberFilterstr;
 367                 op2.ors_filter = &mo->mo_memberFilter;
 368
 369                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 370                 (void)op->o_bd->be_search( &op2, &rs2 );
 371                 op2.o_bd->bd_info = (BackendInfo *)on;
 372
 373                 if ( mc.foundit ) {
 374                         iswhat |= MEMBEROF_IS_MEMBER;
 375
 376                 } else {
 377                         memberof_saved_member_set( op, mc.key, NULL );
 378                 }
 379         }
 380
 381         *iswhatp = iswhat;
 382
 383         return LDAP_SUCCESS;
 384 }
 385
 386 /*
 387  * response callback that adds memberof values when a group is modified.
 388  */
 389 static int
 390 memberof_value_modify(
 391         Operation               *op,
 392         SlapReply               *rs,
 393         struct berval           *ndn,
 394         AttributeDescription    *ad,
 395         struct berval           *old_dn,
 396         struct berval           *old_ndn,
 397         struct berval           *new_dn,
 398         struct berval           *new_ndn )
 399 {
 400         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 401         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 402
 403         Operation       op2 = *op;
 404         SlapReply       rs2 = { REP_RESULT };
 405         slap_callback   cb = { NULL, slap_null_cb, NULL, NULL };
 406         Modifications   mod[ 2 ] = { { { 0 } } }, *ml;
 407         struct berval   values[ 4 ], nvalues[ 4 ];
 408
 409         op2.o_tag = LDAP_REQ_MODIFY;
 410
 411         op2.o_req_dn = *ndn;
 412         op2.o_req_ndn = *ndn;
 413
 414         op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 415
 416         op2.o_callback = &cb;
 417         op2.o_dn = op->o_bd->be_rootdn;
 418         op2.o_ndn = op->o_bd->be_rootndn;
 419
 420         ml = &mod[ 0 ];
 421         ml->sml_numvals = 1;
 422         ml->sml_values = &values[ 0 ];
 423         ml->sml_values[ 0 ] = mo->mo_dn;
 424         BER_BVZERO( &ml->sml_values[ 1 ] );
 425         ml->sml_nvalues = &nvalues[ 0 ];
 426         ml->sml_nvalues[ 0 ] = mo->mo_ndn;
 427         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 428         ml->sml_desc = slap_schema.si_ad_modifiersName;
 429         ml->sml_type = ml->sml_desc->ad_cname;
 430         ml->sml_op = LDAP_MOD_REPLACE;
 431         ml->sml_flags = SLAP_MOD_INTERNAL;
 432         ml->sml_next = NULL;
 433         op2.orm_modlist = ml;
 434
 435         ml = &mod[ 1 ];
 436         ml->sml_numvals = 1;
 437         ml->sml_values = &values[ 2 ];
 438         BER_BVZERO( &ml->sml_values[ 1 ] );
 439         ml->sml_nvalues = &nvalues[ 2 ];
 440         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 441         ml->sml_desc = ad;
 442         ml->sml_type = ml->sml_desc->ad_cname;
 443         ml->sml_flags = SLAP_MOD_INTERNAL;
 444         ml->sml_next = NULL;
 445         op2.orm_modlist->sml_next = ml;
 446
 447         if ( new_ndn != NULL ) {
 448                 assert( !BER_BVISNULL( new_dn ) );
 449                 assert( !BER_BVISNULL( new_ndn ) );
 450
 451                 ml = &mod[ 1 ];
 452                 ml->sml_op = LDAP_MOD_ADD;
 453
 454                 ml->sml_values[ 0 ] = *new_dn;
 455                 ml->sml_nvalues[ 0 ] = *new_ndn;
 456
 457                 (void)op->o_bd->be_modify( &op2, &rs2 );
 458                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 459                         char buf[ SLAP_TEXT_BUFLEN ];
 460                         snprintf( buf, sizeof( buf ),
 461                                 "memberof_value_modify %s=\"%s\" failed err=%d",
 462                                 ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err );
 463                         Debug( LDAP_DEBUG_ANY, "%s: %s\n", op->o_log_prefix, buf, 0 );
 464                 }
 465
 466                 assert( op2.orm_modlist == &mod[ 0 ] );
 467                 assert( op2.orm_modlist->sml_next == &mod[ 1 ] );
 468                 ml = op2.orm_modlist->sml_next->sml_next;
 469                 if ( ml != NULL ) {
 470                         slap_mods_free( ml, 1 );
 471                 }
 472         }
 473
 474         if ( old_ndn != NULL ) {
 475                 assert( !BER_BVISNULL( old_dn ) );
 476                 assert( !BER_BVISNULL( old_ndn ) );
 477
 478                 ml = &mod[ 1 ];
 479                 ml->sml_op = LDAP_MOD_DELETE;
 480
 481                 ml->sml_values[ 0 ] = *old_dn;
 482                 ml->sml_nvalues[ 0 ] = *old_ndn;
 483
 484                 (void)op->o_bd->be_modify( &op2, &rs2 );
 485                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 486                         char buf[ SLAP_TEXT_BUFLEN ];
 487                         snprintf( buf, sizeof( buf ),
 488                                 "memberof_value_modify %s=\"%s\" failed err=%d",
 489                                 ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err );
 490                         Debug( LDAP_DEBUG_ANY, "%s: %s\n", op->o_log_prefix, buf, 0 );
 491                 }
 492
 493                 assert( op2.orm_modlist == &mod[ 0 ] );
 494                 assert( op2.orm_modlist->sml_next == &mod[ 1 ] );
 495                 ml = op2.orm_modlist->sml_next->sml_next;
 496                 if ( ml != NULL ) {
 497                         slap_mods_free( ml, 1 );
 498                 }
 499         }
 500
 501         /* FIXME: if old_group_ndn doesn't exist, both delete __and__
 502          * add will fail; better split in two operations, although
 503          * not optimal in terms of performance.  At least it would
 504          * move towards self-repairing capabilities. */
 505
 506         op2.o_bd->bd_info = (BackendInfo *)on;
 507
 508         return rs2.sr_err;
 509 }
 510
 511 static int
 512 memberof_op_add( Operation *op, SlapReply *rs )
 513 {
 514         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 515         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 516
 517         Attribute       **ap, **map = NULL;
 518         int             rc = SLAP_CB_CONTINUE;
 519         int             i;
 520         struct berval   save_dn, save_ndn;
 521
 522         if ( op->ora_e->e_attrs == NULL ) {
 523                 /* FIXME: global overlay; need to deal with */
 524                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 525                         "consistency checks not implemented when overlay "
 526                         "is instantiated as global.\n",
 527                         op->o_log_prefix, op->o_req_dn.bv_val, 0 );
 528                 return SLAP_CB_CONTINUE;
 529         }
 530
 531         if ( MEMBEROF_REVERSE( mo ) ) {
 532                 for ( ap = &op->ora_e->e_attrs; *ap; ap = &(*ap)->a_next ) {
 533                         Attribute       *a = *ap;
 534
 535                         if ( a->a_desc == mo->mo_ad_memberof ) {
 536                                 map = ap;
 537                                 break;
 538                         }
 539                 }
 540         }
 541
 542         save_dn = op->o_dn;
 543         save_ndn = op->o_ndn;
 544
 545         if ( MEMBEROF_DANGLING_CHECK( mo )
 546                         && !get_relax( op )
 547                         && is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) )
 548         {
 549                 op->o_dn = op->o_bd->be_rootdn;
 550                 op->o_dn = op->o_bd->be_rootndn;
 551                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 552
 553                 for ( ap = &op->ora_e->e_attrs; *ap; ) {
 554                         Attribute       *a = *ap;
 555
 556                         if ( !is_ad_subtype( a->a_desc, mo->mo_ad_member ) ) {
 557                                 ap = &a->a_next;
 558                                 continue;
 559                         }
 560
 561                         assert( a->a_nvals != NULL );
 562
 563                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 564                                 Entry           *e = NULL;
 565
 566                                 rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 567                                                 NULL, NULL, 0, &e );
 568                                 if ( rc == LDAP_SUCCESS ) {
 569                                         be_entry_release_r( op, e );
 570                                         continue;
 571                                 }
 572
 573                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 574                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 575                                         rs->sr_text = "adding non-existing object "
 576                                                 "as group member";
 577                                         send_ldap_result( op, rs );
 578                                         goto done;
 579                                 }
 580
 581                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 582                                         int     j;
 583
 584                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 585                                                 "member=\"%s\" does not exist (stripping...)\n",
 586                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 587                                                 a->a_vals[ i ].bv_val );
 588
 589                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 590                                         ber_memfree( a->a_vals[ i ].bv_val );
 591                                         BER_BVZERO( &a->a_vals[ i ] );
 592                                         if ( a->a_nvals != a->a_vals ) {
 593                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 594                                                 BER_BVZERO( &a->a_nvals[ i ] );
 595                                         }
 596                                         if ( j - i == 1 ) {
 597                                                 break;
 598                                         }
 599
 600                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 601                                                 sizeof( struct berval ) * ( j - i ) );
 602                                         if ( a->a_nvals != a->a_vals ) {
 603                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 604                                                         sizeof( struct berval ) * ( j - i ) );
 605                                         }
 606                                         i--;
 607                                 }
 608                         }
 609
 610                         /* If all values have been removed,
 611                          * remove the attribute itself. */
 612                         if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 613                                 *ap = a->a_next;
 614                                 attr_free( a );
 615
 616                         } else {
 617                                 ap = &a->a_next;
 618                         }
 619                 }
 620                 op->o_dn = save_dn;
 621                 op->o_ndn = save_ndn;
 622                 op->o_bd->bd_info = (BackendInfo *)on;
 623         }
 624
 625         if ( map != NULL ) {
 626                 Attribute               *a = *map;
 627                 AccessControlState      acl_state = ACL_STATE_INIT;
 628
 629                 for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 630                         Entry           *e;
 631
 632                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 633                         /* access is checked with the original identity */
 634                         rc = access_allowed( op, op->ora_e, mo->mo_ad_memberof,
 635                                         &a->a_nvals[ i ], ACL_WADD,
 636                                         &acl_state );
 637                         if ( rc == 0 ) {
 638                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 639                                 rs->sr_text = NULL;
 640                                 send_ldap_result( op, rs );
 641                                 goto done;
 642                         }
 643                         rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 644                                         NULL, NULL, 0, &e );
 645                         op->o_bd->bd_info = (BackendInfo *)on;
 646                         if ( rc != LDAP_SUCCESS ) {
 647                                 if ( get_relax( op ) ) {
 648                                         continue;
 649                                 }
 650
 651                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 652                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 653                                         rs->sr_text = "adding non-existing object "
 654                                                 "as memberof";
 655                                         send_ldap_result( op, rs );
 656                                         goto done;
 657                                 }
 658
 659                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 660                                         int     j;
 661
 662                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 663                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 664                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 665                                                 a->a_nvals[ i ].bv_val );
 666
 667                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 668                                         ber_memfree( a->a_vals[ i ].bv_val );
 669                                         BER_BVZERO( &a->a_vals[ i ] );
 670                                         if ( a->a_nvals != a->a_vals ) {
 671                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 672                                                 BER_BVZERO( &a->a_nvals[ i ] );
 673                                         }
 674                                         if ( j - i == 1 ) {
 675                                                 break;
 676                                         }
 677
 678                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 679                                                 sizeof( struct berval ) * ( j - i ) );
 680                                         if ( a->a_nvals != a->a_vals ) {
 681                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 682                                                         sizeof( struct berval ) * ( j - i ) );
 683                                         }
 684                                         i--;
 685                                 }
 686
 687                                 continue;
 688                         }
 689
 690                         /* access is checked with the original identity */
 691                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 692                         rc = access_allowed( op, e, mo->mo_ad_member,
 693                                         &op->o_req_ndn, ACL_WADD, NULL );
 694                         be_entry_release_r( op, e );
 695                         op->o_bd->bd_info = (BackendInfo *)on;
 696
 697                         if ( !rc ) {
 698                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 699                                 rs->sr_text = "insufficient access to object referenced by memberof";
 700                                 send_ldap_result( op, rs );
 701                                 goto done;
 702                         }
 703                 }
 704
 705                 if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 706                         *map = a->a_next;
 707                         attr_free( a );
 708                 }
 709         }
 710
 711         rc = SLAP_CB_CONTINUE;
 712
 713 done:;
 714         op->o_dn = save_dn;
 715         op->o_ndn = save_ndn;
 716         op->o_bd->bd_info = (BackendInfo *)on;
 717
 718         return rc;
 719 }
 720
 721 static int
 722 memberof_op_delete( Operation *op, SlapReply *rs )
 723 {
 724         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 725         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 726
 727         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
 728
 729         if ( MEMBEROF_REFINT( mo ) ) {
 730                 iswhat = MEMBEROF_IS_BOTH;
 731         }
 732
 733         memberof_isGroupOrMember( op, &iswhat );
 734
 735         return SLAP_CB_CONTINUE;
 736 }
 737
 738 static int
 739 memberof_op_modify( Operation *op, SlapReply *rs )
 740 {
 741         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 742         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 743
 744         Modifications   **mlp, **mmlp = NULL;
 745         int             rc = SLAP_CB_CONTINUE;
 746         struct berval   save_dn, save_ndn;
 747         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
 748
 749         if ( MEMBEROF_REVERSE( mo ) ) {
 750                 for ( mlp = &op->orm_modlist; *mlp; mlp = &(*mlp)->sml_next ) {
 751                         Modifications   *ml = *mlp;
 752
 753                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
 754                                 mmlp = mlp;
 755                                 break;
 756                         }
 757                 }
 758         }
 759
 760         save_dn = op->o_dn;
 761         save_ndn = op->o_ndn;
 762
 763         if ( memberof_isGroupOrMember( op, &iswhat ) == LDAP_SUCCESS
 764                 && ( iswhat & MEMBEROF_IS_GROUP ) )
 765         {
 766                 Modifications *ml;
 767                 int save_member = 0;
 768
 769                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 770                         if ( ml->sml_desc == mo->mo_ad_member ) {
 771                                 switch ( ml->sml_op ) {
 772                                 case LDAP_MOD_DELETE:
 773                                 case LDAP_MOD_REPLACE:
 774                                         save_member = 1;
 775                                         break;
 776                                 }
 777                         }
 778                 }
 779
 780                 if ( save_member ) {
 781                         BerVarray       vals = NULL;
 782
 783                         op->o_dn = op->o_bd->be_rootdn;
 784                         op->o_dn = op->o_bd->be_rootndn;
 785                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 786                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
 787                                         mo->mo_ad_member, &vals, ACL_READ );
 788                         op->o_bd->bd_info = (BackendInfo *)on;
 789                         if ( rc == LDAP_SUCCESS && vals != NULL ) {
 790                                 memberof_saved_member_set( op, &saved_member_vals, vals );
 791                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
 792                         }
 793                 }
 794
 795                 if ( MEMBEROF_DANGLING_CHECK( mo )
 796                                 && !get_relax( op ) )
 797                 {
 798                         op->o_dn = op->o_bd->be_rootdn;
 799                         op->o_dn = op->o_bd->be_rootndn;
 800                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 801
 802                         assert( op->orm_modlist != NULL );
 803
 804                         for ( mlp = &op->orm_modlist; *mlp; ) {
 805                                 Modifications   *ml = *mlp;
 806                                 int             i;
 807
 808                                 if ( !is_ad_subtype( ml->sml_desc, mo->mo_ad_member ) ) {
 809                                         mlp = &ml->sml_next;
 810                                         continue;
 811                                 }
 812
 813                                 switch ( ml->sml_op ) {
 814                                 case LDAP_MOD_DELETE:
 815                                         /* we don't care about cancellations: if the value
 816                                          * exists, fine; if it doesn't, we let the underlying
 817                                          * database fail as appropriate; */
 818                                         mlp = &ml->sml_next;
 819                                         break;
 820
 821                                 case LDAP_MOD_REPLACE:
 822                                 case LDAP_MOD_ADD:
 823                                         /* NOTE: right now, the attributeType we use
 824                                          * for member must have a normalized value */
 825                                         assert( ml->sml_nvalues != NULL );
 826
 827                                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 828                                                 int             rc;
 829                                                 Entry           *e;
 830
 831                                                 if ( be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 832                                                                 NULL, NULL, 0, &e ) == LDAP_SUCCESS )
 833                                                 {
 834                                                         be_entry_release_r( op, e );
 835                                                         continue;
 836                                                 }
 837
 838                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 839                                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 840                                                         rs->sr_text = "adding non-existing object "
 841                                                                 "as group member";
 842                                                         send_ldap_result( op, rs );
 843                                                         goto done;
 844                                                 }
 845
 846                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 847                                                         int     j;
 848
 849                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 850                                                                 "member=\"%s\" does not exist (stripping...)\n",
 851                                                                 op->o_log_prefix, op->o_req_dn.bv_val,
 852                                                                 ml->sml_nvalues[ i ].bv_val );
 853
 854                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 855                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 856                                                         BER_BVZERO( &ml->sml_values[ i ] );
 857                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
 858                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
 859                                                         ml->sml_numvals--;
 860                                                         if ( j - i == 1 ) {
 861                                                                 break;
 862                                                         }
 863
 864                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 865                                                                 sizeof( struct berval ) * ( j - i ) );
 866                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 867                                                                 sizeof( struct berval ) * ( j - i ) );
 868                                                         i--;
 869                                                 }
 870                                         }
 871
 872                                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 873                                                 *mlp = ml->sml_next;
 874                                                 slap_mod_free( &ml->sml_mod, 0 );
 875                                                 free( ml );
 876
 877                                         } else {
 878                                                 mlp = &ml->sml_next;
 879                                         }
 880
 881                                         break;
 882
 883                                 default:
 884                                         assert( 0 );
 885                                 }
 886                         }
 887                 }
 888         }
 889
 890         if ( mmlp != NULL ) {
 891                 Modifications   *ml = *mmlp;
 892                 int             i;
 893                 Entry           *target;
 894
 895                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 896                 rc = be_entry_get_rw( op, &op->o_req_ndn,
 897                                 NULL, NULL, 0, &target );
 898                 op->o_bd->bd_info = (BackendInfo *)on;
 899                 if ( rc != LDAP_SUCCESS ) {
 900                         rc = rs->sr_err = LDAP_NO_SUCH_OBJECT;
 901                         send_ldap_result( op, rs );
 902                         goto done;
 903                 }
 904
 905                 switch ( ml->sml_op ) {
 906                 case LDAP_MOD_DELETE:
 907                         if ( ml->sml_nvalues != NULL ) {
 908                                 AccessControlState      acl_state = ACL_STATE_INIT;
 909
 910                                 for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 911                                         Entry           *e;
 912
 913                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 914                                         /* access is checked with the original identity */
 915                                         rc = access_allowed( op, target,
 916                                                         mo->mo_ad_memberof,
 917                                                         &ml->sml_nvalues[ i ],
 918                                                         ACL_WDEL,
 919                                                         &acl_state );
 920                                         if ( rc == 0 ) {
 921                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 922                                                 rs->sr_text = NULL;
 923                                                 send_ldap_result( op, rs );
 924                                                 goto done2;
 925                                         }
 926
 927                                         rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 928                                                         NULL, NULL, 0, &e );
 929                                         op->o_bd->bd_info = (BackendInfo *)on;
 930                                         if ( rc != LDAP_SUCCESS ) {
 931                                                 if ( get_relax( op ) ) {
 932                                                         continue;
 933                                                 }
 934
 935                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 936                                                         rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
 937                                                         rs->sr_text = "deleting non-existing object "
 938                                                                 "as memberof";
 939                                                         send_ldap_result( op, rs );
 940                                                         goto done2;
 941                                                 }
 942
 943                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 944                                                         int     j;
 945
 946                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 947                                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 948                                                                 op->o_log_prefix, op->o_req_ndn.bv_val,
 949                                                                 ml->sml_nvalues[ i ].bv_val );
 950
 951                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 952                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 953                                                         BER_BVZERO( &ml->sml_values[ i ] );
 954                                                         if ( ml->sml_nvalues != ml->sml_values ) {
 955                                                                 ber_memfree( ml->sml_nvalues[ i ].bv_val );
 956                                                                 BER_BVZERO( &ml->sml_nvalues[ i ] );
 957                                                         }
 958                                                         ml->sml_numvals--;
 959                                                         if ( j - i == 1 ) {
 960                                                                 break;
 961                                                         }
 962
 963                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 964                                                                 sizeof( struct berval ) * ( j - i ) );
 965                                                         if ( ml->sml_nvalues != ml->sml_values ) {
 966                                                                 AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 967                                                                         sizeof( struct berval ) * ( j - i ) );
 968                                                         }
 969                                                         i--;
 970                                                 }
 971
 972                                                 continue;
 973                                         }
 974
 975                                         /* access is checked with the original identity */
 976                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 977                                         rc = access_allowed( op, e, mo->mo_ad_member,
 978                                                         &op->o_req_ndn,
 979                                                         ACL_WDEL, NULL );
 980                                         be_entry_release_r( op, e );
 981                                         op->o_bd->bd_info = (BackendInfo *)on;
 982
 983                                         if ( !rc ) {
 984                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 985                                                 rs->sr_text = "insufficient access to object referenced by memberof";
 986                                                 send_ldap_result( op, rs );
 987                                                 goto done;
 988                                         }
 989                                 }
 990
 991                                 if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 992                                         *mmlp = ml->sml_next;
 993                                         slap_mod_free( &ml->sml_mod, 0 );
 994                                         free( ml );
 995                                 }
 996
 997                                 break;
 998                         }
 999                         /* fall thru */
1000
1001                 case LDAP_MOD_REPLACE:
1002
1003                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1004                         /* access is checked with the original identity */
1005                         rc = access_allowed( op, target,
1006                                         mo->mo_ad_memberof,
1007                                         NULL,
1008                                         ACL_WDEL, NULL );
1009                         op->o_bd->bd_info = (BackendInfo *)on;
1010                         if ( rc == 0 ) {
1011                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1012                                 rs->sr_text = NULL;
1013                                 send_ldap_result( op, rs );
1014                                 goto done2;
1015                         }
1016
1017                         if ( ml->sml_op == LDAP_MOD_DELETE ) {
1018                                 break;
1019                         }
1020                         /* fall thru */
1021
1022                 case LDAP_MOD_ADD: {
1023                         AccessControlState      acl_state = ACL_STATE_INIT;
1024
1025                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
1026                                 Entry           *e;
1027
1028                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1029                                 /* access is checked with the original identity */
1030                                 rc = access_allowed( op, target,
1031                                                 mo->mo_ad_memberof,
1032                                                 &ml->sml_nvalues[ i ],
1033                                                 ACL_WADD,
1034                                                 &acl_state );
1035                                 if ( rc == 0 ) {
1036                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1037                                         rs->sr_text = NULL;
1038                                         send_ldap_result( op, rs );
1039                                         goto done2;
1040                                 }
1041
1042                                 rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
1043                                                 NULL, NULL, 0, &e );
1044                                 op->o_bd->bd_info = (BackendInfo *)on;
1045                                 if ( rc != LDAP_SUCCESS ) {
1046                                         if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
1047                                                 rc = rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
1048                                                 rs->sr_text = "adding non-existing object "
1049                                                         "as memberof";
1050                                                 send_ldap_result( op, rs );
1051                                                 goto done2;
1052                                         }
1053
1054                                         if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1055                                                 int     j;
1056
1057                                                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1058                                                         "memberof=\"%s\" does not exist (stripping...)\n",
1059                                                         op->o_log_prefix, op->o_req_ndn.bv_val,
1060                                                         ml->sml_nvalues[ i ].bv_val );
1061
1062                                                 for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1063                                                 ber_memfree( ml->sml_values[ i ].bv_val );
1064                                                 BER_BVZERO( &ml->sml_values[ i ] );
1065                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1066                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
1067                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
1068                                                 }
1069                                                 ml->sml_numvals--;
1070                                                 if ( j - i == 1 ) {
1071                                                         break;
1072                                                 }
1073
1074                                                 AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1075                                                         sizeof( struct berval ) * ( j - i ) );
1076                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1077                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1078                                                                 sizeof( struct berval ) * ( j - i ) );
1079                                                 }
1080                                                 i--;
1081                                         }
1082
1083                                         continue;
1084                                 }
1085
1086                                 /* access is checked with the original identity */
1087                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1088                                 rc = access_allowed( op, e, mo->mo_ad_member,
1089                                                 &op->o_req_ndn,
1090                                                 ACL_WDEL, NULL );
1091                                 be_entry_release_r( op, e );
1092                                 op->o_bd->bd_info = (BackendInfo *)on;
1093
1094                                 if ( !rc ) {
1095                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1096                                         rs->sr_text = "insufficient access to object referenced by memberof";
1097                                         send_ldap_result( op, rs );
1098                                         goto done;
1099                                 }
1100                         }
1101
1102                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1103                                 *mmlp = ml->sml_next;
1104                                 slap_mod_free( &ml->sml_mod, 0 );
1105                                 free( ml );
1106                         }
1107
1108                         } break;
1109
1110                 default:
1111                         assert( 0 );
1112                 }
1113
1114 done2:;
1115                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1116                 be_entry_release_r( op, target );
1117                 op->o_bd->bd_info = (BackendInfo *)on;
1118         }
1119
1120         rc = SLAP_CB_CONTINUE;
1121
1122 done:;
1123         op->o_dn = save_dn;
1124         op->o_ndn = save_ndn;
1125         op->o_bd->bd_info = (BackendInfo *)on;
1126
1127         return rc;
1128 }
1129
1130 /*
1131  * response callback that adds memberof values when a group is added.
1132  */
1133 static int
1134 memberof_res_add( Operation *op, SlapReply *rs )
1135 {
1136         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1137         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1138
1139         int             i;
1140
1141         if ( MEMBEROF_REVERSE( mo ) ) {
1142                 Attribute       *ma;
1143
1144                 ma = attr_find( op->ora_e->e_attrs, mo->mo_ad_memberof );
1145                 if ( ma != NULL ) {
1146                         Operation       op2 = *op;
1147                         SlapReply       rs2 = { 0 };
1148
1149                         /* relax is required to allow to add
1150                          * a non-existing member */
1151                         op2.o_relax = SLAP_CONTROL_CRITICAL;
1152
1153                         for ( i = 0; !BER_BVISNULL( &ma->a_nvals[ i ] ); i++ ) {
1154
1155                                 /* the modification is attempted
1156                                  * with the original identity */
1157                                 (void)memberof_value_modify( &op2, &rs2,
1158                                         &ma->a_nvals[ i ], mo->mo_ad_member,
1159                                         NULL, NULL, &op->o_req_dn, &op->o_req_ndn );
1160                         }
1161                 }
1162         }
1163
1164         if ( is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) ) {
1165                 Attribute       *a;
1166
1167                 for ( a = attrs_find( op->ora_e->e_attrs, mo->mo_ad_member );
1168                                 a != NULL;
1169                                 a = attrs_find( a->a_next, mo->mo_ad_member ) )
1170                 {
1171                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
1172                                 (void)memberof_value_modify( op, rs,
1173                                                 &a->a_nvals[ i ],
1174                                                 mo->mo_ad_memberof,
1175                                                 NULL, NULL,
1176                                                 &op->o_req_dn,
1177                                                 &op->o_req_ndn );
1178                         }
1179                 }
1180         }
1181
1182         return SLAP_CB_CONTINUE;
1183 }
1184
1185 /*
1186  * response callback that deletes memberof values when a group is deleted.
1187  */
1188 static int
1189 memberof_res_delete( Operation *op, SlapReply *rs )
1190 {
1191         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1192         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1193
1194         BerVarray       vals;
1195         int             i;
1196
1197         vals = memberof_saved_member_get( op, &saved_member_vals );
1198         if ( vals != NULL ) {
1199                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1200                         (void)memberof_value_modify( op, rs,
1201                                         &vals[ i ], mo->mo_ad_memberof,
1202                                         &op->o_req_dn, &op->o_req_ndn,
1203                                         NULL, NULL );
1204                 }
1205
1206                 ber_bvarray_free( vals );
1207         }
1208
1209         if ( MEMBEROF_REFINT( mo ) ) {
1210                 vals = memberof_saved_member_get( op, &saved_memberof_vals );
1211                 if ( vals != NULL ) {
1212                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1213                                 (void)memberof_value_modify( op, rs,
1214                                                 &vals[ i ], mo->mo_ad_member,
1215                                                 &op->o_req_dn, &op->o_req_ndn,
1216                                                 NULL, NULL );
1217                         }
1218
1219                         ber_bvarray_free( vals );
1220                 }
1221         }
1222
1223         return SLAP_CB_CONTINUE;
1224 }
1225
1226 /*
1227  * response callback that adds/deletes memberof values when a group
1228  * is modified.
1229  */
1230 static int
1231 memberof_res_modify( Operation *op, SlapReply *rs )
1232 {
1233         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1234         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1235
1236         int             i, rc;
1237         Modifications   *ml, *mml = NULL;
1238         BerVarray       vals;
1239         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
1240
1241         if ( MEMBEROF_REVERSE( mo ) ) {
1242                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1243                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
1244                                 mml = ml;
1245                                 break;
1246                         }
1247                 }
1248         }
1249
1250         if ( mml != NULL ) {
1251                 BerVarray       vals = mml->sml_nvalues;
1252
1253                 switch ( mml->sml_op ) {
1254                 case LDAP_MOD_DELETE:
1255                         if ( vals != NULL ) {
1256                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1257                                         memberof_value_modify( op, rs,
1258                                                         &vals[ i ], mo->mo_ad_member,
1259                                                         &op->o_req_dn, &op->o_req_ndn,
1260                                                         NULL, NULL );
1261                                 }
1262                                 break;
1263                         }
1264                         /* fall thru */
1265
1266                 case LDAP_MOD_REPLACE:
1267                         /* delete all ... */
1268                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1269                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
1270                                         mo->mo_ad_memberof, &vals, ACL_READ );
1271                         op->o_bd->bd_info = (BackendInfo *)on;
1272                         if ( rc == LDAP_SUCCESS ) {
1273                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1274                                         (void)memberof_value_modify( op, rs,
1275                                                         &vals[ i ], mo->mo_ad_member,
1276                                                         &op->o_req_dn, &op->o_req_ndn,
1277                                                         NULL, NULL );
1278                                 }
1279                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
1280                         }
1281
1282                         if ( ml->sml_op == LDAP_MOD_DELETE ) {
1283                                 break;
1284                         }
1285                         /* fall thru */
1286
1287                 case LDAP_MOD_ADD:
1288                         assert( vals != NULL );
1289
1290                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1291                                 memberof_value_modify( op, rs,
1292                                                 &vals[ i ], mo->mo_ad_member,
1293                                                 NULL, NULL,
1294                                                 &op->o_req_dn, &op->o_req_ndn );
1295                         }
1296                         break;
1297
1298                 default:
1299                         assert( 0 );
1300                 }
1301         }
1302
1303         if ( memberof_isGroupOrMember( op, &iswhat ) == LDAP_SUCCESS
1304                         && ( iswhat & MEMBEROF_IS_GROUP ) )
1305         {
1306                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1307                         if ( ml->sml_desc != mo->mo_ad_member ) {
1308                                 continue;
1309                         }
1310
1311                         switch ( ml->sml_op ) {
1312                         case LDAP_MOD_DELETE:
1313                                 vals = ml->sml_nvalues;
1314                                 if ( vals != NULL ) {
1315                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1316                                                 memberof_value_modify( op, rs,
1317                                                                 &vals[ i ], mo->mo_ad_memberof,
1318                                                                 &op->o_req_dn, &op->o_req_ndn,
1319                                                                 NULL, NULL );
1320                                         }
1321                                         break;
1322                                 }
1323                                 /* fall thru */
1324
1325                         case LDAP_MOD_REPLACE:
1326                                 vals = memberof_saved_member_get( op, &saved_member_vals );
1327
1328                                 /* delete all ... */
1329                                 if ( vals != NULL ) {
1330                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1331                                                 (void)memberof_value_modify( op, rs,
1332                                                                 &vals[ i ], mo->mo_ad_memberof,
1333                                                                 &op->o_req_dn, &op->o_req_ndn,
1334                                                                 NULL, NULL );
1335                                         }
1336                                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1337                                 }
1338
1339                                 if ( ml->sml_op == LDAP_MOD_DELETE ) {
1340                                         break;
1341                                 }
1342                                 /* fall thru */
1343
1344                         case LDAP_MOD_ADD:
1345                                 assert( ml->sml_nvalues != NULL );
1346                                 vals = ml->sml_nvalues;
1347                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1348                                         memberof_value_modify( op, rs,
1349                                                         &vals[ i ], mo->mo_ad_memberof,
1350                                                         NULL, NULL,
1351                                                         &op->o_req_dn, &op->o_req_ndn );
1352                                 }
1353                                 break;
1354
1355                         default:
1356                                 assert( 0 );
1357                         }
1358                 }
1359         }
1360
1361         return SLAP_CB_CONTINUE;
1362 }
1363
1364 /*
1365  * response callback that adds/deletes member values when a group member
1366  * is modified.
1367  */
1368 static int
1369 memberof_res_rename( Operation *op, SlapReply *rs )
1370 {
1371         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1372         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1373
1374         struct berval   newPDN, newDN = BER_BVNULL, newPNDN, newNDN;
1375         int             i, rc;
1376         BerVarray       vals;
1377
1378         struct berval   save_dn, save_ndn;
1379         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
1380
1381         if ( MEMBEROF_REFINT( mo ) ) {
1382                 iswhat |= MEMBEROF_IS_MEMBER;
1383         }
1384
1385         if ( op->orr_nnewSup ) {
1386                 newPNDN = *op->orr_nnewSup;
1387
1388         } else {
1389                 dnParent( &op->o_req_ndn, &newPNDN );
1390         }
1391
1392         build_new_dn( &newNDN, &newPNDN, &op->orr_nnewrdn, op->o_tmpmemctx );
1393
1394         save_dn = op->o_req_dn;
1395         save_ndn = op->o_req_ndn;
1396
1397         op->o_req_dn = newNDN;
1398         op->o_req_ndn = newNDN;
1399         rc = memberof_isGroupOrMember( op, &iswhat );
1400         op->o_req_dn = save_dn;
1401         op->o_req_ndn = save_ndn;
1402
1403         if ( rc != LDAP_SUCCESS || iswhat == MEMBEROF_IS_NONE ) {
1404                 goto done;
1405         }
1406
1407         if ( op->orr_newSup ) {
1408                 newPDN = *op->orr_newSup;
1409
1410         } else {
1411                 dnParent( &op->o_req_dn, &newPDN );
1412         }
1413
1414         build_new_dn( &newDN, &newPDN, &op->orr_newrdn, op->o_tmpmemctx );
1415
1416         if ( iswhat & MEMBEROF_IS_GROUP ) {
1417                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1418                 rc = backend_attribute( op, NULL, &newNDN,
1419                                 mo->mo_ad_member, &vals, ACL_READ );
1420                 op->o_bd->bd_info = (BackendInfo *)on;
1421
1422                 if ( rc == LDAP_SUCCESS ) {
1423                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1424                                 (void)memberof_value_modify( op, rs,
1425                                                 &vals[ i ], mo->mo_ad_memberof,
1426                                                 &op->o_req_dn, &op->o_req_ndn,
1427                                                 &newDN, &newNDN );
1428                         }
1429                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1430                 }
1431         }
1432
1433         if ( MEMBEROF_REFINT( mo ) && ( iswhat & MEMBEROF_IS_MEMBER ) ) {
1434                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1435                 rc = backend_attribute( op, NULL, &newNDN,
1436                                 mo->mo_ad_memberof, &vals, ACL_READ );
1437                 op->o_bd->bd_info = (BackendInfo *)on;
1438
1439                 if ( rc == LDAP_SUCCESS ) {
1440                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1441                                 (void)memberof_value_modify( op, rs,
1442                                                 &vals[ i ], mo->mo_ad_member,
1443                                                 &op->o_req_dn, &op->o_req_ndn,
1444                                                 &newDN, &newNDN );
1445                         }
1446                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1447                 }
1448         }
1449
1450 done:;
1451         if ( !BER_BVISNULL( &newDN ) ) {
1452                 op->o_tmpfree( newDN.bv_val, op->o_tmpmemctx );
1453         }
1454         op->o_tmpfree( newNDN.bv_val, op->o_tmpmemctx );
1455
1456         return SLAP_CB_CONTINUE;
1457 }
1458
1459 static int
1460 memberof_response( Operation *op, SlapReply *rs )
1461 {
1462         if ( rs->sr_err != LDAP_SUCCESS ) {
1463                 return SLAP_CB_CONTINUE;
1464         }
1465
1466         switch ( op->o_tag ) {
1467         case LDAP_REQ_ADD:
1468                 return memberof_res_add( op, rs );
1469
1470         case LDAP_REQ_DELETE:
1471                 return memberof_res_delete( op, rs );
1472
1473         case LDAP_REQ_MODIFY:
1474                 return memberof_res_modify( op, rs );
1475
1476         case LDAP_REQ_MODDN:
1477                 return memberof_res_rename( op, rs );
1478
1479         default:
1480                 return SLAP_CB_CONTINUE;
1481         }
1482 }
1483
1484 static int
1485 memberof_db_init(
1486         BackendDB       *be,
1487         ConfigReply     *cr )
1488 {
1489         slap_overinst   *on = (slap_overinst *)be->bd_info;
1490         memberof_t      tmp_mo = { 0 }, *mo;
1491
1492         mo = (memberof_t *)ch_calloc( 1, sizeof( memberof_t ) );
1493         on->on_bi.bi_private = (void *)mo;
1494
1495         return 0;
1496 }
1497
1498 enum {
1499         MO_DN = 1,
1500         MO_DANGLING,
1501         MO_REFINT,
1502 #if 0
1503         MO_REVERSE,
1504 #endif
1505         MO_GROUP_OC,
1506         MO_MEMBER_AD,
1507         MO_MEMBER_OF_AD
1508 };
1509
1510 static ConfigDriver mo_cf_gen;
1511
1512 #define OID             "1.3.6.1.4.1.7136.2.666.4"
1513 #define OIDAT           OID ".1.1"
1514 #define OIDCFGAT        OID ".1.2"
1515 #define OIDOC           OID ".2.1"
1516 #define OIDCFGOC        OID ".2.2"
1517
1518
1519 static ConfigTable mo_cfg[] = {
1520         { "memberof-dn", "modifiersName",
1521                 2, 2, 0, ARG_MAGIC|ARG_DN|MO_DN, mo_cf_gen,
1522                 "( OLcfgOvAt:18.0 NAME 'olcMemberOfDN' "
1523                         "DESC 'DN to be used as modifiersName' "
1524                         "SYNTAX OMsDN SINGLE-VALUE )",
1525                 NULL, NULL },
1526
1527         { "memberof-dangling", "ignore|drop|error",
1528                 2, 2, 0, ARG_MAGIC|MO_DANGLING, mo_cf_gen,
1529                 "( OLcfgOvAt:18.1 NAME 'olcMemberOfDangling' "
1530                         "DESC 'Behavior with respect to dangling members, "
1531                                 "constrained to ignore, drop, error' "
1532                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1533                 NULL, NULL },
1534
1535         { "memberof-refint", "true|FALSE",
1536                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REFINT, mo_cf_gen,
1537                 "( OLcfgOvAt:18.2 NAME 'olcMemberOfRefInt' "
1538                         "DESC 'Take care of referential integrity' "
1539                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1540                 NULL, NULL },
1541
1542         { "memberof-group-oc", "objectClass",
1543                 2, 2, 0, ARG_MAGIC|MO_GROUP_OC, mo_cf_gen,
1544                 "( OLcfgOvAt:18.3 NAME 'olcMemberOfGroupOC' "
1545                         "DESC 'Group objectClass' "
1546                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1547                 NULL, NULL },
1548
1549         { "memberof-member-ad", "member attribute",
1550                 2, 2, 0, ARG_MAGIC|MO_MEMBER_AD, mo_cf_gen,
1551                 "( OLcfgOvAt:18.4 NAME 'olcMemberOfMemberAD' "
1552                         "DESC 'member attribute' "
1553                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1554                 NULL, NULL },
1555
1556         { "memberof-memberof-ad", "memberOf attribute",
1557                 2, 2, 0, ARG_MAGIC|MO_MEMBER_OF_AD, mo_cf_gen,
1558                 "( OLcfgOvAt:18.5 NAME 'olcMemberOfMemberOfAD' "
1559                         "DESC 'memberOf attribute' "
1560                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1561                 NULL, NULL },
1562
1563 #if 0
1564         { "memberof-reverse", "true|FALSE",
1565                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REVERSE, mo_cf_gen,
1566                 "( OLcfgOvAt:18.6 NAME 'olcMemberOfReverse' "
1567                         "DESC 'Take care of referential integrity "
1568                                 "also when directly modifying memberOf' "
1569                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1570                 NULL, NULL },
1571 #endif
1572
1573         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1574 };
1575
1576 static ConfigOCs mo_ocs[] = {
1577         { "( OLcfgOvOc:18.1 "
1578                 "NAME 'olcMemberOf' "
1579                 "DESC 'Member-of configuration' "
1580                 "SUP olcOverlayConfig "
1581                 "MAY ( "
1582                         "olcMemberOfDN "
1583                         "$ olcMemberOfDangling "
1584                         "$ olcMemberOfRefInt "
1585                         "$ olcMemberOfGroupOC "
1586                         "$ olcMemberOfMemberAD "
1587                         "$ olcMemberOfMemberOfAD "
1588 #if 0
1589                         "$ olcMemberOfReverse "
1590 #endif
1591                         ") "
1592                 ")",
1593                 Cft_Overlay, mo_cfg, NULL, NULL },
1594         { NULL, 0, NULL }
1595 };
1596
1597 static slap_verbmasks dangling_mode[] = {
1598         { BER_BVC( "ignore" ),          MEMBEROF_NONE },
1599         { BER_BVC( "drop" ),            MEMBEROF_FDANGLING_DROP },
1600         { BER_BVC( "error" ),           MEMBEROF_FDANGLING_ERROR },
1601         { BER_BVNULL,                   0 }
1602 };
1603
1604 static int
1605 memberof_make_group_filter( memberof_t *mo )
1606 {
1607         char            *ptr;
1608
1609         if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1610                 ch_free( mo->mo_groupFilterstr.bv_val );
1611         }
1612
1613         mo->mo_groupFilter.f_choice = LDAP_FILTER_EQUALITY;
1614         mo->mo_groupFilter.f_ava = &mo->mo_groupAVA;
1615
1616         mo->mo_groupFilter.f_av_desc = slap_schema.si_ad_objectClass;
1617         mo->mo_groupFilter.f_av_value = mo->mo_oc_group->soc_cname;
1618
1619         mo->mo_groupFilterstr.bv_len = STRLENOF( "(=)" )
1620                 + slap_schema.si_ad_objectClass->ad_cname.bv_len
1621                 + mo->mo_oc_group->soc_cname.bv_len;
1622         ptr = mo->mo_groupFilterstr.bv_val = ch_malloc( mo->mo_groupFilterstr.bv_len + 1 );
1623         *ptr++ = '(';
1624         ptr = lutil_strcopy( ptr, slap_schema.si_ad_objectClass->ad_cname.bv_val );
1625         *ptr++ = '=';
1626         ptr = lutil_strcopy( ptr, mo->mo_oc_group->soc_cname.bv_val );
1627         *ptr++ = ')';
1628         *ptr = '\0';
1629
1630         return 0;
1631 }
1632
1633 static int
1634 memberof_make_member_filter( memberof_t *mo )
1635 {
1636         char            *ptr;
1637
1638         if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1639                 ch_free( mo->mo_memberFilterstr.bv_val );
1640         }
1641
1642         mo->mo_memberFilter.f_choice = LDAP_FILTER_PRESENT;
1643         mo->mo_memberFilter.f_desc = mo->mo_ad_memberof;
1644
1645         mo->mo_memberFilterstr.bv_len = STRLENOF( "(=*)" )
1646                 + mo->mo_ad_memberof->ad_cname.bv_len;
1647         ptr = mo->mo_memberFilterstr.bv_val = ch_malloc( mo->mo_memberFilterstr.bv_len + 1 );
1648         *ptr++ = '(';
1649         ptr = lutil_strcopy( ptr, mo->mo_ad_memberof->ad_cname.bv_val );
1650         ptr = lutil_strcopy( ptr, "=*)" );
1651
1652         return 0;
1653 }
1654
1655 static int
1656 mo_cf_gen( ConfigArgs *c )
1657 {
1658         slap_overinst   *on = (slap_overinst *)c->bi;
1659         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1660
1661         int             i, rc = 0;
1662
1663         if ( c->op == SLAP_CONFIG_EMIT ) {
1664                 struct berval bv = BER_BVNULL;
1665
1666                 switch( c->type ) {
1667                 case MO_DN:
1668                         if ( mo->mo_dn.bv_val != NULL) {
1669                                 value_add_one( &c->rvalue_vals, &mo->mo_dn );
1670                                 value_add_one( &c->rvalue_nvals, &mo->mo_ndn );
1671                         }
1672                         break;
1673
1674                 case MO_DANGLING:
1675                         enum_to_verb( dangling_mode, (mo->mo_flags & MEMBEROF_FDANGLING_MASK), &bv );
1676                         if ( BER_BVISNULL( &bv ) ) {
1677                                 /* there's something wrong... */
1678                                 assert( 0 );
1679                                 rc = 1;
1680
1681                         } else {
1682                                 value_add_one( &c->rvalue_vals, &bv );
1683                         }
1684                         break;
1685
1686                 case MO_REFINT:
1687                         c->value_int = MEMBEROF_REFINT( mo );
1688                         break;
1689
1690 #if 0
1691                 case MO_REVERSE:
1692                         c->value_int = MEMBEROF_REVERSE( mo );
1693                         break;
1694 #endif
1695
1696                 case MO_GROUP_OC:
1697                         if ( mo->mo_oc_group != NULL ){
1698                                 value_add_one( &c->rvalue_vals, &mo->mo_oc_group->soc_cname );
1699                         }
1700                         break;
1701
1702                 case MO_MEMBER_AD:
1703                         if ( mo->mo_ad_member != NULL ){
1704                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_member->ad_cname );
1705                         }
1706                         break;
1707
1708                 case MO_MEMBER_OF_AD:
1709                         if ( mo->mo_ad_memberof != NULL ){
1710                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_memberof->ad_cname );
1711                         }
1712                         break;
1713
1714                 default:
1715                         assert( 0 );
1716                         return 1;
1717                 }
1718
1719                 return rc;
1720
1721         } else if ( c->op == LDAP_MOD_DELETE ) {
1722                 return 1;       /* FIXME */
1723
1724         } else {
1725                 switch( c->type ) {
1726                 case MO_DN:
1727                         if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1728                                 ber_memfree( mo->mo_dn.bv_val );
1729                                 ber_memfree( mo->mo_ndn.bv_val );
1730                         }
1731                         mo->mo_dn = c->value_dn;
1732                         mo->mo_ndn = c->value_ndn;
1733                         break;
1734
1735                 case MO_DANGLING:
1736                         i = verb_to_mask( c->argv[ 1 ], dangling_mode );
1737                         if ( BER_BVISNULL( &dangling_mode[ i ].word ) ) {
1738                                 return 1;
1739                         }
1740
1741                         mo->mo_flags &= ~MEMBEROF_FDANGLING_MASK;
1742                         mo->mo_flags |= dangling_mode[ i ].mask;
1743                         break;
1744
1745                 case MO_REFINT:
1746                         if ( c->value_int ) {
1747                                 mo->mo_flags |= MEMBEROF_FREFINT;
1748
1749                         } else {
1750                                 mo->mo_flags &= ~MEMBEROF_FREFINT;
1751                         }
1752                         break;
1753
1754 #if 0
1755                 case MO_REVERSE:
1756                         if ( c->value_int ) {
1757                                 mo->mo_flags |= MEMBEROF_FREVERSE;
1758
1759                         } else {
1760                                 mo->mo_flags &= ~MEMBEROF_FREVERSE;
1761                         }
1762                         break;
1763 #endif
1764
1765                 case MO_GROUP_OC: {
1766                         ObjectClass     *oc = NULL;
1767
1768                         oc = oc_find( c->argv[ 1 ] );
1769                         if ( oc == NULL ) {
1770                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1771                                         "unable to find group objectClass=\"%s\"",
1772                                         c->argv[ 1 ] );
1773                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1774                                         c->log, c->cr_msg, 0 );
1775                                 return 1;
1776                         }
1777
1778                         mo->mo_oc_group = oc;
1779                         memberof_make_group_filter( mo );
1780                         } break;
1781
1782                 case MO_MEMBER_AD: {
1783                         AttributeDescription    *ad = NULL;
1784                         const char              *text = NULL;
1785
1786
1787                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1788                         if ( rc != LDAP_SUCCESS ) {
1789                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1790                                         "unable to find member attribute=\"%s\": %s (%d)",
1791                                         c->argv[ 1 ], text, rc );
1792                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1793                                         c->log, c->cr_msg, 0 );
1794                                 return 1;
1795                         }
1796
1797                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1798                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1799                         {
1800                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1801                                         "member attribute=\"%s\" must either "
1802                                         "have DN (%s) or nameUID (%s) syntax",
1803                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1804                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1805                                         c->log, c->cr_msg, 0 );
1806                                 return 1;
1807                         }
1808
1809                         mo->mo_ad_member = ad;
1810                         } break;
1811
1812                 case MO_MEMBER_OF_AD: {
1813                         AttributeDescription    *ad = NULL;
1814                         const char              *text = NULL;
1815
1816
1817                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1818                         if ( rc != LDAP_SUCCESS ) {
1819                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1820                                         "unable to find memberof attribute=\"%s\": %s (%d)",
1821                                         c->argv[ 1 ], text, rc );
1822                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1823                                         c->log, c->cr_msg, 0 );
1824                                 return 1;
1825                         }
1826
1827                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1828                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1829                         {
1830                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1831                                         "memberof attribute=\"%s\" must either "
1832                                         "have DN (%s) or nameUID (%s) syntax",
1833                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1834                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1835                                         c->log, c->cr_msg, 0 );
1836                                 return 1;
1837                         }
1838
1839                         mo->mo_ad_memberof = ad;
1840                         memberof_make_member_filter( mo );
1841                         } break;
1842
1843                 default:
1844                         assert( 0 );
1845                         return 1;
1846                 }
1847         }
1848
1849         return 0;
1850 }
1851
1852 static int
1853 memberof_db_open(
1854         BackendDB       *be,
1855         ConfigReply     *cr )
1856 {
1857         slap_overinst   *on = (slap_overinst *)be->bd_info;
1858         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1859
1860         int             rc;
1861         const char      *text = NULL;
1862
1863         if( ! mo->mo_ad_memberof ){
1864                 rc = slap_str2ad( SLAPD_MEMBEROF_ATTR, &mo->mo_ad_memberof, &text );
1865                 if ( rc != LDAP_SUCCESS ) {
1866                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
1867                                         "unable to find attribute=\"%s\": %s (%d)\n",
1868                                         SLAPD_MEMBEROF_ATTR, text, rc );
1869                         return rc;
1870                 }
1871         }
1872
1873         if( ! mo->mo_ad_member ){
1874                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &mo->mo_ad_member, &text );
1875                 if ( rc != LDAP_SUCCESS ) {
1876                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
1877                                         "unable to find attribute=\"%s\": %s (%d)\n",
1878                                         SLAPD_GROUP_ATTR, text, rc );
1879                         return rc;
1880                 }
1881         }
1882
1883     if( ! mo->mo_oc_group ){
1884                 mo->mo_oc_group = oc_find( SLAPD_GROUP_CLASS );
1885                 if ( mo->mo_oc_group == NULL ) {
1886                         Debug( LDAP_DEBUG_ANY,
1887                                         "memberof_db_open: "
1888                                         "unable to find objectClass=\"%s\"\n",
1889                                         SLAPD_GROUP_CLASS, 0, 0 );
1890                         return 1;
1891                 }
1892         }
1893
1894         if ( BER_BVISNULL( &mo->mo_dn ) ) {
1895                 ber_dupbv( &mo->mo_dn, &be->be_rootdn );
1896                 ber_dupbv( &mo->mo_ndn, &be->be_rootndn );
1897         }
1898
1899         if ( BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1900                 memberof_make_group_filter( mo );
1901         }
1902
1903         if ( BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1904                 memberof_make_member_filter( mo );
1905         }
1906
1907         return 0;
1908 }
1909
1910 static int
1911 memberof_db_destroy(
1912         BackendDB       *be,
1913         ConfigReply     *cr )
1914 {
1915         slap_overinst   *on = (slap_overinst *)be->bd_info;
1916         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1917
1918         if ( mo ) {
1919                 if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1920                         ber_memfree( mo->mo_dn.bv_val );
1921                         ber_memfree( mo->mo_ndn.bv_val );
1922                 }
1923
1924                 if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1925                         ber_memfree( mo->mo_groupFilterstr.bv_val );
1926                 }
1927
1928                 if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1929                         ber_memfree( mo->mo_memberFilterstr.bv_val );
1930                 }
1931
1932                 ber_memfree( mo );
1933         }
1934
1935         return 0;
1936 }
1937
1938 /* unused */
1939 static AttributeDescription     *ad_memberOf;
1940
1941 static struct {
1942         char    *desc;
1943         AttributeDescription **adp;
1944 } as[] = {
1945         { "( 1.2.840.113556.1.2.102 "
1946                 "NAME 'memberOf' "
1947                 "DESC 'Group that the entry belongs to' "
1948                 "SYNTAX '1.3.6.1.4.1.1466.115.121.1.12' "
1949                 "EQUALITY distinguishedNameMatch "      /* added */
1950                 "USAGE dSAOperation "                   /* added; questioned */
1951                 /* "NO-USER-MODIFICATION " */           /* add? */
1952                 "X-ORIGIN 'iPlanet Delegated Administrator' )",
1953                 &ad_memberOf },
1954         { NULL }
1955 };
1956
1957 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
1958 static
1959 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
1960 int
1961 memberof_initialize( void )
1962 {
1963         int                     code, i;
1964
1965         for ( i = 0; as[ i ].desc != NULL; i++ ) {
1966                 code = register_at( as[ i ].desc, as[ i ].adp, 0 );
1967                 if ( code ) {
1968                         Debug( LDAP_DEBUG_ANY,
1969                                 "memberof_initialize: register_at #%d failed\n",
1970                                 i, 0, 0 );
1971                         return code;
1972                 }
1973         }
1974
1975         memberof.on_bi.bi_type = "memberof";
1976
1977         memberof.on_bi.bi_db_init = memberof_db_init;
1978         memberof.on_bi.bi_db_open = memberof_db_open;
1979         memberof.on_bi.bi_db_destroy = memberof_db_destroy;
1980
1981         memberof.on_bi.bi_op_add = memberof_op_add;
1982         memberof.on_bi.bi_op_delete = memberof_op_delete;
1983         memberof.on_bi.bi_op_modify = memberof_op_modify;
1984
1985         memberof.on_response = memberof_response;
1986
1987         memberof.on_bi.bi_cf_ocs = mo_ocs;
1988
1989         code = config_register_schema( mo_cfg, mo_ocs );
1990         if ( code ) return code;
1991
1992         return overlay_register( &memberof );
1993 }
1994
1995 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
1996 int
1997 init_module( int argc, char *argv[] )
1998 {
1999         return memberof_initialize();
2000 }
2001 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2002
2003 #endif /* SLAPD_OVER_MEMBEROF */