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         ber_int_t               mo_dangling_err;
 159
 160 #define MEMBEROF_CHK(mo,f) \
 161         (((mo)->mo_flags & (f)) == (f))
 162 #define MEMBEROF_DANGLING_CHECK(mo) \
 163         ((mo)->mo_flags & MEMBEROF_FDANGLING_MASK)
 164 #define MEMBEROF_DANGLING_DROP(mo) \
 165         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_DROP)
 166 #define MEMBEROF_DANGLING_ERROR(mo) \
 167         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_ERROR)
 168 #define MEMBEROF_REFINT(mo) \
 169         MEMBEROF_CHK((mo),MEMBEROF_FREFINT)
 170 #define MEMBEROF_REVERSE(mo) \
 171         MEMBEROF_CHK((mo),MEMBEROF_FREVERSE)
 172 } memberof_t;
 173
 174 typedef enum memberof_is_t {
 175         MEMBEROF_IS_NONE = 0x00,
 176         MEMBEROF_IS_GROUP = 0x01,
 177         MEMBEROF_IS_MEMBER = 0x02,
 178         MEMBEROF_IS_BOTH = (MEMBEROF_IS_GROUP|MEMBEROF_IS_MEMBER)
 179 } memberof_is_t;
 180
 181 /*
 182  * failover storage for member attribute values of groups being deleted
 183  * handles [no]thread cases.
 184  */
 185 static BerVarray        saved_member_vals;
 186 static BerVarray        saved_memberof_vals;
 187
 188 static void
 189 memberof_saved_member_free( void *key, void *data )
 190 {
 191         ber_bvarray_free( (BerVarray)data );
 192 }
 193
 194 static BerVarray
 195 memberof_saved_member_get( Operation *op, void *keyp )
 196 {
 197         BerVarray       vals;
 198         BerVarray       *key = (BerVarray *)keyp;
 199
 200         assert( op != NULL );
 201
 202         if ( op->o_threadctx == NULL ) {
 203                 vals = *key;
 204                 *key = NULL;
 205
 206         } else {
 207                 ldap_pvt_thread_pool_getkey( op->o_threadctx,
 208                                 key, (void **)&vals, NULL );
 209                 ldap_pvt_thread_pool_setkey( op->o_threadctx,
 210                                 key, NULL, NULL );
 211         }
 212
 213         return vals;
 214 }
 215
 216 static void
 217 memberof_saved_member_set( Operation *op, void *keyp, BerVarray vals )
 218 {
 219         BerVarray       saved_vals = NULL;
 220         BerVarray       *key = (BerVarray*)keyp;
 221
 222         assert( op != NULL );
 223
 224         if ( vals ) {
 225                 ber_bvarray_dup_x( &saved_vals, vals, NULL );
 226         }
 227
 228         if ( op->o_threadctx == NULL ) {
 229                 if ( *key ) {
 230                         ber_bvarray_free( *key );
 231                 }
 232                 *key = saved_vals;
 233
 234         } else {
 235                 ldap_pvt_thread_pool_setkey( op->o_threadctx, key,
 236                                 saved_vals, memberof_saved_member_free );
 237         }
 238 }
 239
 240 typedef struct memberof_cookie_t {
 241         AttributeDescription    *ad;
 242         void                    *key;
 243         int                     foundit;
 244 } memberof_cookie_t;
 245
 246 static int
 247 memberof_isGroupOrMember_cb( Operation *op, SlapReply *rs )
 248 {
 249         if ( rs->sr_type == REP_SEARCH ) {
 250                 memberof_cookie_t       *mc;
 251
 252                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 253                 mc->foundit = 1;
 254         }
 255
 256         return 0;
 257 }
 258
 259 /*
 260  * callback for internal search that saves the member attribute values
 261  * of groups being deleted.
 262  */
 263 static int
 264 memberof_saveMember_cb( Operation *op, SlapReply *rs )
 265 {
 266         if ( rs->sr_type == REP_SEARCH ) {
 267                 memberof_cookie_t       *mc;
 268                 Attribute               *a;
 269                 BerVarray               vals = NULL;
 270
 271                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 272                 mc->foundit = 1;
 273
 274                 assert( rs->sr_entry != NULL );
 275                 assert( rs->sr_entry->e_attrs != NULL );
 276
 277                 a = attr_find( rs->sr_entry->e_attrs, mc->ad );
 278                 if ( a != NULL ) {
 279                         vals = a->a_nvals;
 280                 }
 281
 282                 memberof_saved_member_set( op, mc->key, vals );
 283
 284                 if ( a && attr_find( a->a_next, mc->ad ) != NULL ) {
 285                         Debug( LDAP_DEBUG_ANY,
 286                                 "%s: memberof_saveMember_cb(\"%s\"): "
 287                                 "more than one occurrence of \"%s\" "
 288                                 "attribute.\n",
 289                                 op->o_log_prefix,
 290                                 rs->sr_entry->e_name.bv_val,
 291                                 mc->ad->ad_cname.bv_val );
 292                 }
 293         }
 294
 295         return 0;
 296 }
 297
 298 /*
 299  * the delete hook performs an internal search that saves the member
 300  * attribute values of groups being deleted.
 301  */
 302 static int
 303 memberof_isGroupOrMember( Operation *op, memberof_is_t *iswhatp )
 304 {
 305         slap_overinst           *on = (slap_overinst *)op->o_bd->bd_info;
 306         memberof_t              *mo = (memberof_t *)on->on_bi.bi_private;
 307
 308         Operation               op2 = *op;
 309         SlapReply               rs2 = { REP_RESULT };
 310         slap_callback           cb = { 0 };
 311         memberof_cookie_t       mc;
 312         AttributeName           an[ 2 ];
 313
 314         memberof_is_t           iswhat = MEMBEROF_IS_NONE;
 315
 316         assert( iswhatp != NULL );
 317         assert( *iswhatp != MEMBEROF_IS_NONE );
 318
 319         cb.sc_private = &mc;
 320         if ( op->o_tag == LDAP_REQ_DELETE ) {
 321                 cb.sc_response = memberof_saveMember_cb;
 322
 323         } else {
 324                 cb.sc_response = memberof_isGroupOrMember_cb;
 325         }
 326
 327         op2.o_tag = LDAP_REQ_SEARCH;
 328         op2.o_callback = &cb;
 329         op2.o_dn = op->o_bd->be_rootdn;
 330         op2.o_ndn = op->o_bd->be_rootndn;
 331
 332         op2.ors_scope = LDAP_SCOPE_BASE;
 333         op2.ors_deref = LDAP_DEREF_NEVER;
 334         BER_BVZERO( &an[ 1 ].an_name );
 335         op2.ors_attrs = an;
 336         op2.ors_attrsonly = 0;
 337         op2.ors_limit = NULL;
 338         op2.ors_slimit = 1;
 339         op2.ors_tlimit = SLAP_NO_LIMIT;
 340
 341         if ( *iswhatp & MEMBEROF_IS_GROUP ) {
 342                 mc.ad = mo->mo_ad_member;
 343                 mc.key = &saved_member_vals;
 344                 mc.foundit = 0;
 345                 an[ 0 ].an_desc = mo->mo_ad_member;
 346                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 347                 op2.ors_filterstr = mo->mo_groupFilterstr;
 348                 op2.ors_filter = &mo->mo_groupFilter;
 349
 350                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 351                 (void)op->o_bd->be_search( &op2, &rs2 );
 352                 op2.o_bd->bd_info = (BackendInfo *)on;
 353
 354                 if ( mc.foundit ) {
 355                         iswhat |= MEMBEROF_IS_GROUP;
 356
 357                 } else {
 358                         memberof_saved_member_set( op, mc.key, NULL );
 359                 }
 360         }
 361
 362         if ( *iswhatp & MEMBEROF_IS_MEMBER ) {
 363                 mc.ad = mo->mo_ad_memberof;
 364                 mc.key = &saved_memberof_vals;
 365                 mc.foundit = 0;
 366                 an[ 0 ].an_desc = mo->mo_ad_memberof;
 367                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 368                 op2.ors_filterstr = mo->mo_memberFilterstr;
 369                 op2.ors_filter = &mo->mo_memberFilter;
 370
 371                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 372                 (void)op->o_bd->be_search( &op2, &rs2 );
 373                 op2.o_bd->bd_info = (BackendInfo *)on;
 374
 375                 if ( mc.foundit ) {
 376                         iswhat |= MEMBEROF_IS_MEMBER;
 377
 378                 } else {
 379                         memberof_saved_member_set( op, mc.key, NULL );
 380                 }
 381         }
 382
 383         *iswhatp = iswhat;
 384
 385         return LDAP_SUCCESS;
 386 }
 387
 388 /*
 389  * response callback that adds memberof values when a group is modified.
 390  */
 391 static int
 392 memberof_value_modify(
 393         Operation               *op,
 394         SlapReply               *rs,
 395         struct berval           *ndn,
 396         AttributeDescription    *ad,
 397         struct berval           *old_dn,
 398         struct berval           *old_ndn,
 399         struct berval           *new_dn,
 400         struct berval           *new_ndn )
 401 {
 402         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 403         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 404
 405         Operation       op2 = *op;
 406         SlapReply       rs2 = { REP_RESULT };
 407         slap_callback   cb = { NULL, slap_null_cb, NULL, NULL };
 408         Modifications   mod[ 2 ] = { { { 0 } } }, *ml;
 409         struct berval   values[ 4 ], nvalues[ 4 ];
 410         int             mcnt = 0;
 411
 412         op2.o_tag = LDAP_REQ_MODIFY;
 413
 414         op2.o_req_dn = *ndn;
 415         op2.o_req_ndn = *ndn;
 416
 417         op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 418
 419         op2.o_callback = &cb;
 420         op2.o_dn = op->o_bd->be_rootdn;
 421         op2.o_ndn = op->o_bd->be_rootndn;
 422         op2.orm_modlist = NULL;
 423
 424         if ( !BER_BVISNULL( &mo->mo_ndn ) ) {
 425                 ml = &mod[ mcnt ];
 426                 ml->sml_numvals = 1;
 427                 ml->sml_values = &values[ 0 ];
 428                 ml->sml_values[ 0 ] = mo->mo_dn;
 429                 BER_BVZERO( &ml->sml_values[ 1 ] );
 430                 ml->sml_nvalues = &nvalues[ 0 ];
 431                 ml->sml_nvalues[ 0 ] = mo->mo_ndn;
 432                 BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 433                 ml->sml_desc = slap_schema.si_ad_modifiersName;
 434                 ml->sml_type = ml->sml_desc->ad_cname;
 435                 ml->sml_op = LDAP_MOD_REPLACE;
 436                 ml->sml_flags = SLAP_MOD_INTERNAL;
 437                 ml->sml_next = op2.orm_modlist;
 438                 op2.orm_modlist = ml;
 439
 440                 mcnt++;
 441         }
 442
 443         ml = &mod[ mcnt ];
 444         ml->sml_numvals = 1;
 445         ml->sml_values = &values[ 2 ];
 446         BER_BVZERO( &ml->sml_values[ 1 ] );
 447         ml->sml_nvalues = &nvalues[ 2 ];
 448         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 449         ml->sml_desc = ad;
 450         ml->sml_type = ml->sml_desc->ad_cname;
 451         ml->sml_flags = SLAP_MOD_INTERNAL;
 452         ml->sml_next = op2.orm_modlist;
 453         op2.orm_modlist = ml;
 454
 455         if ( new_ndn != NULL ) {
 456                 assert( !BER_BVISNULL( new_dn ) );
 457                 assert( !BER_BVISNULL( new_ndn ) );
 458
 459                 ml = &mod[ mcnt ];
 460                 ml->sml_op = LDAP_MOD_ADD;
 461
 462                 ml->sml_values[ 0 ] = *new_dn;
 463                 ml->sml_nvalues[ 0 ] = *new_ndn;
 464
 465                 (void)op->o_bd->be_modify( &op2, &rs2 );
 466                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 467                         char buf[ SLAP_TEXT_BUFLEN ];
 468                         snprintf( buf, sizeof( buf ),
 469                                 "memberof_value_modify %s=\"%s\" failed err=%d text=%s",
 470                                 ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err, rs2.sr_text );
 471                         Debug( LDAP_DEBUG_ANY, "%s: %s\n", op->o_log_prefix, buf, 0 );
 472                 }
 473
 474                 assert( op2.orm_modlist == &mod[ mcnt ] );
 475                 assert( mcnt == 0 || op2.orm_modlist->sml_next == &mod[ 0 ] );
 476                 ml = op2.orm_modlist->sml_next;
 477                 if ( mcnt == 1 ) {
 478                         assert( ml == &mod[ 0 ] );
 479                         ml = ml->sml_next;
 480                 }
 481                 if ( ml != NULL ) {
 482                         slap_mods_free( ml, 1 );
 483                 }
 484         }
 485
 486         if ( old_ndn != NULL ) {
 487                 assert( !BER_BVISNULL( old_dn ) );
 488                 assert( !BER_BVISNULL( old_ndn ) );
 489
 490                 ml = &mod[ mcnt ];
 491                 ml->sml_op = LDAP_MOD_DELETE;
 492
 493                 ml->sml_values[ 0 ] = *old_dn;
 494                 ml->sml_nvalues[ 0 ] = *old_ndn;
 495
 496                 (void)op->o_bd->be_modify( &op2, &rs2 );
 497                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 498                         char buf[ SLAP_TEXT_BUFLEN ];
 499                         snprintf( buf, sizeof( buf ),
 500                                 "memberof_value_modify %s=\"%s\" failed err=%d text=%s",
 501                                 ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err, rs2.sr_text );
 502                         Debug( LDAP_DEBUG_ANY, "%s: %s\n", op->o_log_prefix, buf, 0 );
 503                 }
 504
 505                 assert( op2.orm_modlist == &mod[ mcnt ] );
 506                 ml = op2.orm_modlist->sml_next;
 507                 if ( mcnt == 1 ) {
 508                         assert( ml == &mod[ 0 ] );
 509                         ml = ml->sml_next;
 510                 }
 511                 if ( ml != NULL ) {
 512                         slap_mods_free( ml, 1 );
 513                 }
 514         }
 515
 516         /* FIXME: if old_group_ndn doesn't exist, both delete __and__
 517          * add will fail; better split in two operations, although
 518          * not optimal in terms of performance.  At least it would
 519          * move towards self-repairing capabilities. */
 520
 521         op2.o_bd->bd_info = (BackendInfo *)on;
 522
 523         return rs2.sr_err;
 524 }
 525
 526 static int
 527 memberof_op_add( Operation *op, SlapReply *rs )
 528 {
 529         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 530         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 531
 532         Attribute       **ap, **map = NULL;
 533         int             rc = SLAP_CB_CONTINUE;
 534         int             i;
 535         struct berval   save_dn, save_ndn;
 536
 537         if ( op->ora_e->e_attrs == NULL ) {
 538                 /* FIXME: global overlay; need to deal with */
 539                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 540                         "consistency checks not implemented when overlay "
 541                         "is instantiated as global.\n",
 542                         op->o_log_prefix, op->o_req_dn.bv_val, 0 );
 543                 return SLAP_CB_CONTINUE;
 544         }
 545
 546         if ( MEMBEROF_REVERSE( mo ) ) {
 547                 for ( ap = &op->ora_e->e_attrs; *ap; ap = &(*ap)->a_next ) {
 548                         Attribute       *a = *ap;
 549
 550                         if ( a->a_desc == mo->mo_ad_memberof ) {
 551                                 map = ap;
 552                                 break;
 553                         }
 554                 }
 555         }
 556
 557         save_dn = op->o_dn;
 558         save_ndn = op->o_ndn;
 559
 560         if ( MEMBEROF_DANGLING_CHECK( mo )
 561                         && !get_relax( op )
 562                         && is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) )
 563         {
 564                 op->o_dn = op->o_bd->be_rootdn;
 565                 op->o_dn = op->o_bd->be_rootndn;
 566                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 567
 568                 for ( ap = &op->ora_e->e_attrs; *ap; ) {
 569                         Attribute       *a = *ap;
 570
 571                         if ( !is_ad_subtype( a->a_desc, mo->mo_ad_member ) ) {
 572                                 ap = &a->a_next;
 573                                 continue;
 574                         }
 575
 576                         assert( a->a_nvals != NULL );
 577
 578                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 579                                 Entry           *e = NULL;
 580
 581                                 rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 582                                                 NULL, NULL, 0, &e );
 583                                 if ( rc == LDAP_SUCCESS ) {
 584                                         be_entry_release_r( op, e );
 585                                         continue;
 586                                 }
 587
 588                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 589                                         rc = rs->sr_err = mo->mo_dangling_err;
 590                                         rs->sr_text = "adding non-existing object "
 591                                                 "as group member";
 592                                         send_ldap_result( op, rs );
 593                                         goto done;
 594                                 }
 595
 596                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 597                                         int     j;
 598
 599                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 600                                                 "member=\"%s\" does not exist (stripping...)\n",
 601                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 602                                                 a->a_vals[ i ].bv_val );
 603
 604                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 605                                         ber_memfree( a->a_vals[ i ].bv_val );
 606                                         BER_BVZERO( &a->a_vals[ i ] );
 607                                         if ( a->a_nvals != a->a_vals ) {
 608                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 609                                                 BER_BVZERO( &a->a_nvals[ i ] );
 610                                         }
 611                                         if ( j - i == 1 ) {
 612                                                 break;
 613                                         }
 614
 615                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 616                                                 sizeof( struct berval ) * ( j - i ) );
 617                                         if ( a->a_nvals != a->a_vals ) {
 618                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 619                                                         sizeof( struct berval ) * ( j - i ) );
 620                                         }
 621                                         i--;
 622                                 }
 623                         }
 624
 625                         /* If all values have been removed,
 626                          * remove the attribute itself. */
 627                         if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 628                                 *ap = a->a_next;
 629                                 attr_free( a );
 630
 631                         } else {
 632                                 ap = &a->a_next;
 633                         }
 634                 }
 635                 op->o_dn = save_dn;
 636                 op->o_ndn = save_ndn;
 637                 op->o_bd->bd_info = (BackendInfo *)on;
 638         }
 639
 640         if ( map != NULL ) {
 641                 Attribute               *a = *map;
 642                 AccessControlState      acl_state = ACL_STATE_INIT;
 643
 644                 for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 645                         Entry           *e;
 646
 647                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 648                         /* access is checked with the original identity */
 649                         rc = access_allowed( op, op->ora_e, mo->mo_ad_memberof,
 650                                         &a->a_nvals[ i ], ACL_WADD,
 651                                         &acl_state );
 652                         if ( rc == 0 ) {
 653                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 654                                 rs->sr_text = NULL;
 655                                 send_ldap_result( op, rs );
 656                                 goto done;
 657                         }
 658                         rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 659                                         NULL, NULL, 0, &e );
 660                         op->o_bd->bd_info = (BackendInfo *)on;
 661                         if ( rc != LDAP_SUCCESS ) {
 662                                 if ( get_relax( op ) ) {
 663                                         continue;
 664                                 }
 665
 666                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 667                                         rc = rs->sr_err = mo->mo_dangling_err;
 668                                         rs->sr_text = "adding non-existing object "
 669                                                 "as memberof";
 670                                         send_ldap_result( op, rs );
 671                                         goto done;
 672                                 }
 673
 674                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 675                                         int     j;
 676
 677                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 678                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 679                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 680                                                 a->a_nvals[ i ].bv_val );
 681
 682                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 683                                         ber_memfree( a->a_vals[ i ].bv_val );
 684                                         BER_BVZERO( &a->a_vals[ i ] );
 685                                         if ( a->a_nvals != a->a_vals ) {
 686                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 687                                                 BER_BVZERO( &a->a_nvals[ i ] );
 688                                         }
 689                                         if ( j - i == 1 ) {
 690                                                 break;
 691                                         }
 692
 693                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 694                                                 sizeof( struct berval ) * ( j - i ) );
 695                                         if ( a->a_nvals != a->a_vals ) {
 696                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 697                                                         sizeof( struct berval ) * ( j - i ) );
 698                                         }
 699                                         i--;
 700                                 }
 701
 702                                 continue;
 703                         }
 704
 705                         /* access is checked with the original identity */
 706                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 707                         rc = access_allowed( op, e, mo->mo_ad_member,
 708                                         &op->o_req_ndn, ACL_WADD, NULL );
 709                         be_entry_release_r( op, e );
 710                         op->o_bd->bd_info = (BackendInfo *)on;
 711
 712                         if ( !rc ) {
 713                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 714                                 rs->sr_text = "insufficient access to object referenced by memberof";
 715                                 send_ldap_result( op, rs );
 716                                 goto done;
 717                         }
 718                 }
 719
 720                 if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 721                         *map = a->a_next;
 722                         attr_free( a );
 723                 }
 724         }
 725
 726         rc = SLAP_CB_CONTINUE;
 727
 728 done:;
 729         op->o_dn = save_dn;
 730         op->o_ndn = save_ndn;
 731         op->o_bd->bd_info = (BackendInfo *)on;
 732
 733         return rc;
 734 }
 735
 736 static int
 737 memberof_op_delete( 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         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
 743
 744         if ( MEMBEROF_REFINT( mo ) ) {
 745                 iswhat = MEMBEROF_IS_BOTH;
 746         }
 747
 748         memberof_isGroupOrMember( op, &iswhat );
 749
 750         return SLAP_CB_CONTINUE;
 751 }
 752
 753 static int
 754 memberof_op_modify( Operation *op, SlapReply *rs )
 755 {
 756         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 757         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 758
 759         Modifications   **mlp, **mmlp = NULL;
 760         int             rc = SLAP_CB_CONTINUE;
 761         struct berval   save_dn, save_ndn;
 762         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
 763
 764         if ( MEMBEROF_REVERSE( mo ) ) {
 765                 for ( mlp = &op->orm_modlist; *mlp; mlp = &(*mlp)->sml_next ) {
 766                         Modifications   *ml = *mlp;
 767
 768                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
 769                                 mmlp = mlp;
 770                                 break;
 771                         }
 772                 }
 773         }
 774
 775         save_dn = op->o_dn;
 776         save_ndn = op->o_ndn;
 777
 778         if ( memberof_isGroupOrMember( op, &iswhat ) == LDAP_SUCCESS
 779                 && ( iswhat & MEMBEROF_IS_GROUP ) )
 780         {
 781                 Modifications *ml;
 782                 int save_member = 0;
 783
 784                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 785                         if ( ml->sml_desc == mo->mo_ad_member ) {
 786                                 switch ( ml->sml_op ) {
 787                                 case LDAP_MOD_DELETE:
 788                                 case LDAP_MOD_REPLACE:
 789                                         save_member = 1;
 790                                         break;
 791                                 }
 792                         }
 793                 }
 794
 795                 if ( save_member ) {
 796                         BerVarray       vals = NULL;
 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                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
 802                                         mo->mo_ad_member, &vals, ACL_READ );
 803                         op->o_bd->bd_info = (BackendInfo *)on;
 804                         if ( rc == LDAP_SUCCESS && vals != NULL ) {
 805                                 memberof_saved_member_set( op, &saved_member_vals, vals );
 806                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
 807                         }
 808                 }
 809
 810                 if ( MEMBEROF_DANGLING_CHECK( mo )
 811                                 && !get_relax( op ) )
 812                 {
 813                         op->o_dn = op->o_bd->be_rootdn;
 814                         op->o_dn = op->o_bd->be_rootndn;
 815                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 816
 817                         assert( op->orm_modlist != NULL );
 818
 819                         for ( mlp = &op->orm_modlist; *mlp; ) {
 820                                 Modifications   *ml = *mlp;
 821                                 int             i;
 822
 823                                 if ( !is_ad_subtype( ml->sml_desc, mo->mo_ad_member ) ) {
 824                                         mlp = &ml->sml_next;
 825                                         continue;
 826                                 }
 827
 828                                 switch ( ml->sml_op ) {
 829                                 case LDAP_MOD_DELETE:
 830                                         /* we don't care about cancellations: if the value
 831                                          * exists, fine; if it doesn't, we let the underlying
 832                                          * database fail as appropriate; */
 833                                         mlp = &ml->sml_next;
 834                                         break;
 835
 836                                 case LDAP_MOD_REPLACE:
 837                                 case LDAP_MOD_ADD:
 838                                         /* NOTE: right now, the attributeType we use
 839                                          * for member must have a normalized value */
 840                                         assert( ml->sml_nvalues != NULL );
 841
 842                                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 843                                                 int             rc;
 844                                                 Entry           *e;
 845
 846                                                 if ( be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 847                                                                 NULL, NULL, 0, &e ) == LDAP_SUCCESS )
 848                                                 {
 849                                                         be_entry_release_r( op, e );
 850                                                         continue;
 851                                                 }
 852
 853                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 854                                                         rc = rs->sr_err = mo->mo_dangling_err;
 855                                                         rs->sr_text = "adding non-existing object "
 856                                                                 "as group member";
 857                                                         send_ldap_result( op, rs );
 858                                                         goto done;
 859                                                 }
 860
 861                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 862                                                         int     j;
 863
 864                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 865                                                                 "member=\"%s\" does not exist (stripping...)\n",
 866                                                                 op->o_log_prefix, op->o_req_dn.bv_val,
 867                                                                 ml->sml_nvalues[ i ].bv_val );
 868
 869                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 870                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 871                                                         BER_BVZERO( &ml->sml_values[ i ] );
 872                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
 873                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
 874                                                         ml->sml_numvals--;
 875                                                         if ( j - i == 1 ) {
 876                                                                 break;
 877                                                         }
 878
 879                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 880                                                                 sizeof( struct berval ) * ( j - i ) );
 881                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 882                                                                 sizeof( struct berval ) * ( j - i ) );
 883                                                         i--;
 884                                                 }
 885                                         }
 886
 887                                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 888                                                 *mlp = ml->sml_next;
 889                                                 slap_mod_free( &ml->sml_mod, 0 );
 890                                                 free( ml );
 891
 892                                         } else {
 893                                                 mlp = &ml->sml_next;
 894                                         }
 895
 896                                         break;
 897
 898                                 default:
 899                                         assert( 0 );
 900                                 }
 901                         }
 902                 }
 903         }
 904
 905         if ( mmlp != NULL ) {
 906                 Modifications   *ml = *mmlp;
 907                 int             i;
 908                 Entry           *target;
 909
 910                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 911                 rc = be_entry_get_rw( op, &op->o_req_ndn,
 912                                 NULL, NULL, 0, &target );
 913                 op->o_bd->bd_info = (BackendInfo *)on;
 914                 if ( rc != LDAP_SUCCESS ) {
 915                         rc = rs->sr_err = LDAP_NO_SUCH_OBJECT;
 916                         send_ldap_result( op, rs );
 917                         goto done;
 918                 }
 919
 920                 switch ( ml->sml_op ) {
 921                 case LDAP_MOD_DELETE:
 922                         if ( ml->sml_nvalues != NULL ) {
 923                                 AccessControlState      acl_state = ACL_STATE_INIT;
 924
 925                                 for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 926                                         Entry           *e;
 927
 928                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 929                                         /* access is checked with the original identity */
 930                                         rc = access_allowed( op, target,
 931                                                         mo->mo_ad_memberof,
 932                                                         &ml->sml_nvalues[ i ],
 933                                                         ACL_WDEL,
 934                                                         &acl_state );
 935                                         if ( rc == 0 ) {
 936                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 937                                                 rs->sr_text = NULL;
 938                                                 send_ldap_result( op, rs );
 939                                                 goto done2;
 940                                         }
 941
 942                                         rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 943                                                         NULL, NULL, 0, &e );
 944                                         op->o_bd->bd_info = (BackendInfo *)on;
 945                                         if ( rc != LDAP_SUCCESS ) {
 946                                                 if ( get_relax( op ) ) {
 947                                                         continue;
 948                                                 }
 949
 950                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 951                                                         rc = rs->sr_err = mo->mo_dangling_err;
 952                                                         rs->sr_text = "deleting non-existing object "
 953                                                                 "as memberof";
 954                                                         send_ldap_result( op, rs );
 955                                                         goto done2;
 956                                                 }
 957
 958                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 959                                                         int     j;
 960
 961                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 962                                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 963                                                                 op->o_log_prefix, op->o_req_ndn.bv_val,
 964                                                                 ml->sml_nvalues[ i ].bv_val );
 965
 966                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 967                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 968                                                         BER_BVZERO( &ml->sml_values[ i ] );
 969                                                         if ( ml->sml_nvalues != ml->sml_values ) {
 970                                                                 ber_memfree( ml->sml_nvalues[ i ].bv_val );
 971                                                                 BER_BVZERO( &ml->sml_nvalues[ i ] );
 972                                                         }
 973                                                         ml->sml_numvals--;
 974                                                         if ( j - i == 1 ) {
 975                                                                 break;
 976                                                         }
 977
 978                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 979                                                                 sizeof( struct berval ) * ( j - i ) );
 980                                                         if ( ml->sml_nvalues != ml->sml_values ) {
 981                                                                 AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 982                                                                         sizeof( struct berval ) * ( j - i ) );
 983                                                         }
 984                                                         i--;
 985                                                 }
 986
 987                                                 continue;
 988                                         }
 989
 990                                         /* access is checked with the original identity */
 991                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 992                                         rc = access_allowed( op, e, mo->mo_ad_member,
 993                                                         &op->o_req_ndn,
 994                                                         ACL_WDEL, NULL );
 995                                         be_entry_release_r( op, e );
 996                                         op->o_bd->bd_info = (BackendInfo *)on;
 997
 998                                         if ( !rc ) {
 999                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1000                                                 rs->sr_text = "insufficient access to object referenced by memberof";
1001                                                 send_ldap_result( op, rs );
1002                                                 goto done;
1003                                         }
1004                                 }
1005
1006                                 if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1007                                         *mmlp = ml->sml_next;
1008                                         slap_mod_free( &ml->sml_mod, 0 );
1009                                         free( ml );
1010                                 }
1011
1012                                 break;
1013                         }
1014                         /* fall thru */
1015
1016                 case LDAP_MOD_REPLACE:
1017
1018                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1019                         /* access is checked with the original identity */
1020                         rc = access_allowed( op, target,
1021                                         mo->mo_ad_memberof,
1022                                         NULL,
1023                                         ACL_WDEL, NULL );
1024                         op->o_bd->bd_info = (BackendInfo *)on;
1025                         if ( rc == 0 ) {
1026                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1027                                 rs->sr_text = NULL;
1028                                 send_ldap_result( op, rs );
1029                                 goto done2;
1030                         }
1031
1032                         if ( ml->sml_op == LDAP_MOD_DELETE ) {
1033                                 break;
1034                         }
1035                         /* fall thru */
1036
1037                 case LDAP_MOD_ADD: {
1038                         AccessControlState      acl_state = ACL_STATE_INIT;
1039
1040                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
1041                                 Entry           *e;
1042
1043                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1044                                 /* access is checked with the original identity */
1045                                 rc = access_allowed( op, target,
1046                                                 mo->mo_ad_memberof,
1047                                                 &ml->sml_nvalues[ i ],
1048                                                 ACL_WADD,
1049                                                 &acl_state );
1050                                 if ( rc == 0 ) {
1051                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1052                                         rs->sr_text = NULL;
1053                                         send_ldap_result( op, rs );
1054                                         goto done2;
1055                                 }
1056
1057                                 rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
1058                                                 NULL, NULL, 0, &e );
1059                                 op->o_bd->bd_info = (BackendInfo *)on;
1060                                 if ( rc != LDAP_SUCCESS ) {
1061                                         if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
1062                                                 rc = rs->sr_err = mo->mo_dangling_err;
1063                                                 rs->sr_text = "adding non-existing object "
1064                                                         "as memberof";
1065                                                 send_ldap_result( op, rs );
1066                                                 goto done2;
1067                                         }
1068
1069                                         if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1070                                                 int     j;
1071
1072                                                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1073                                                         "memberof=\"%s\" does not exist (stripping...)\n",
1074                                                         op->o_log_prefix, op->o_req_ndn.bv_val,
1075                                                         ml->sml_nvalues[ i ].bv_val );
1076
1077                                                 for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1078                                                 ber_memfree( ml->sml_values[ i ].bv_val );
1079                                                 BER_BVZERO( &ml->sml_values[ i ] );
1080                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1081                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
1082                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
1083                                                 }
1084                                                 ml->sml_numvals--;
1085                                                 if ( j - i == 1 ) {
1086                                                         break;
1087                                                 }
1088
1089                                                 AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1090                                                         sizeof( struct berval ) * ( j - i ) );
1091                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1092                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1093                                                                 sizeof( struct berval ) * ( j - i ) );
1094                                                 }
1095                                                 i--;
1096                                         }
1097
1098                                         continue;
1099                                 }
1100
1101                                 /* access is checked with the original identity */
1102                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1103                                 rc = access_allowed( op, e, mo->mo_ad_member,
1104                                                 &op->o_req_ndn,
1105                                                 ACL_WDEL, NULL );
1106                                 be_entry_release_r( op, e );
1107                                 op->o_bd->bd_info = (BackendInfo *)on;
1108
1109                                 if ( !rc ) {
1110                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1111                                         rs->sr_text = "insufficient access to object referenced by memberof";
1112                                         send_ldap_result( op, rs );
1113                                         goto done;
1114                                 }
1115                         }
1116
1117                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1118                                 *mmlp = ml->sml_next;
1119                                 slap_mod_free( &ml->sml_mod, 0 );
1120                                 free( ml );
1121                         }
1122
1123                         } break;
1124
1125                 default:
1126                         assert( 0 );
1127                 }
1128
1129 done2:;
1130                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1131                 be_entry_release_r( op, target );
1132                 op->o_bd->bd_info = (BackendInfo *)on;
1133         }
1134
1135         rc = SLAP_CB_CONTINUE;
1136
1137 done:;
1138         op->o_dn = save_dn;
1139         op->o_ndn = save_ndn;
1140         op->o_bd->bd_info = (BackendInfo *)on;
1141
1142         return rc;
1143 }
1144
1145 /*
1146  * response callback that adds memberof values when a group is added.
1147  */
1148 static int
1149 memberof_res_add( Operation *op, SlapReply *rs )
1150 {
1151         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1152         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1153
1154         int             i;
1155
1156         if ( MEMBEROF_REVERSE( mo ) ) {
1157                 Attribute       *ma;
1158
1159                 ma = attr_find( op->ora_e->e_attrs, mo->mo_ad_memberof );
1160                 if ( ma != NULL ) {
1161                         Operation       op2 = *op;
1162                         SlapReply       rs2 = { 0 };
1163
1164                         /* relax is required to allow to add
1165                          * a non-existing member */
1166                         op2.o_relax = SLAP_CONTROL_CRITICAL;
1167
1168                         for ( i = 0; !BER_BVISNULL( &ma->a_nvals[ i ] ); i++ ) {
1169
1170                                 /* the modification is attempted
1171                                  * with the original identity */
1172                                 (void)memberof_value_modify( &op2, &rs2,
1173                                         &ma->a_nvals[ i ], mo->mo_ad_member,
1174                                         NULL, NULL, &op->o_req_dn, &op->o_req_ndn );
1175                         }
1176                 }
1177         }
1178
1179         if ( is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) ) {
1180                 Attribute       *a;
1181
1182                 for ( a = attrs_find( op->ora_e->e_attrs, mo->mo_ad_member );
1183                                 a != NULL;
1184                                 a = attrs_find( a->a_next, mo->mo_ad_member ) )
1185                 {
1186                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
1187                                 (void)memberof_value_modify( op, rs,
1188                                                 &a->a_nvals[ i ],
1189                                                 mo->mo_ad_memberof,
1190                                                 NULL, NULL,
1191                                                 &op->o_req_dn,
1192                                                 &op->o_req_ndn );
1193                         }
1194                 }
1195         }
1196
1197         return SLAP_CB_CONTINUE;
1198 }
1199
1200 /*
1201  * response callback that deletes memberof values when a group is deleted.
1202  */
1203 static int
1204 memberof_res_delete( Operation *op, SlapReply *rs )
1205 {
1206         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1207         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1208
1209         BerVarray       vals;
1210         int             i;
1211
1212         vals = memberof_saved_member_get( op, &saved_member_vals );
1213         if ( vals != NULL ) {
1214                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1215                         (void)memberof_value_modify( op, rs,
1216                                         &vals[ i ], mo->mo_ad_memberof,
1217                                         &op->o_req_dn, &op->o_req_ndn,
1218                                         NULL, NULL );
1219                 }
1220
1221                 ber_bvarray_free( vals );
1222         }
1223
1224         if ( MEMBEROF_REFINT( mo ) ) {
1225                 vals = memberof_saved_member_get( op, &saved_memberof_vals );
1226                 if ( vals != NULL ) {
1227                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1228                                 (void)memberof_value_modify( op, rs,
1229                                                 &vals[ i ], mo->mo_ad_member,
1230                                                 &op->o_req_dn, &op->o_req_ndn,
1231                                                 NULL, NULL );
1232                         }
1233
1234                         ber_bvarray_free( vals );
1235                 }
1236         }
1237
1238         return SLAP_CB_CONTINUE;
1239 }
1240
1241 /*
1242  * response callback that adds/deletes memberof values when a group
1243  * is modified.
1244  */
1245 static int
1246 memberof_res_modify( Operation *op, SlapReply *rs )
1247 {
1248         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1249         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1250
1251         int             i, rc;
1252         Modifications   *ml, *mml = NULL;
1253         BerVarray       vals;
1254         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
1255
1256         if ( MEMBEROF_REVERSE( mo ) ) {
1257                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1258                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
1259                                 mml = ml;
1260                                 break;
1261                         }
1262                 }
1263         }
1264
1265         if ( mml != NULL ) {
1266                 BerVarray       vals = mml->sml_nvalues;
1267
1268                 switch ( mml->sml_op ) {
1269                 case LDAP_MOD_DELETE:
1270                         if ( vals != NULL ) {
1271                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1272                                         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                                 break;
1278                         }
1279                         /* fall thru */
1280
1281                 case LDAP_MOD_REPLACE:
1282                         /* delete all ... */
1283                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1284                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
1285                                         mo->mo_ad_memberof, &vals, ACL_READ );
1286                         op->o_bd->bd_info = (BackendInfo *)on;
1287                         if ( rc == LDAP_SUCCESS ) {
1288                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1289                                         (void)memberof_value_modify( op, rs,
1290                                                         &vals[ i ], mo->mo_ad_member,
1291                                                         &op->o_req_dn, &op->o_req_ndn,
1292                                                         NULL, NULL );
1293                                 }
1294                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
1295                         }
1296
1297                         if ( ml->sml_op == LDAP_MOD_DELETE ) {
1298                                 break;
1299                         }
1300                         /* fall thru */
1301
1302                 case LDAP_MOD_ADD:
1303                         assert( vals != NULL );
1304
1305                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1306                                 memberof_value_modify( op, rs,
1307                                                 &vals[ i ], mo->mo_ad_member,
1308                                                 NULL, NULL,
1309                                                 &op->o_req_dn, &op->o_req_ndn );
1310                         }
1311                         break;
1312
1313                 default:
1314                         assert( 0 );
1315                 }
1316         }
1317
1318         if ( memberof_isGroupOrMember( op, &iswhat ) == LDAP_SUCCESS
1319                         && ( iswhat & MEMBEROF_IS_GROUP ) )
1320         {
1321                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1322                         if ( ml->sml_desc != mo->mo_ad_member ) {
1323                                 continue;
1324                         }
1325
1326                         switch ( ml->sml_op ) {
1327                         case LDAP_MOD_DELETE:
1328                                 vals = ml->sml_nvalues;
1329                                 if ( vals != NULL ) {
1330                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1331                                                 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                                         break;
1337                                 }
1338                                 /* fall thru */
1339
1340                         case LDAP_MOD_REPLACE:
1341                                 vals = memberof_saved_member_get( op, &saved_member_vals );
1342
1343                                 /* delete all ... */
1344                                 if ( vals != NULL ) {
1345                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1346                                                 (void)memberof_value_modify( op, rs,
1347                                                                 &vals[ i ], mo->mo_ad_memberof,
1348                                                                 &op->o_req_dn, &op->o_req_ndn,
1349                                                                 NULL, NULL );
1350                                         }
1351                                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1352                                 }
1353
1354                                 if ( ml->sml_op == LDAP_MOD_DELETE ) {
1355                                         break;
1356                                 }
1357                                 /* fall thru */
1358
1359                         case LDAP_MOD_ADD:
1360                                 assert( ml->sml_nvalues != NULL );
1361                                 vals = ml->sml_nvalues;
1362                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1363                                         memberof_value_modify( op, rs,
1364                                                         &vals[ i ], mo->mo_ad_memberof,
1365                                                         NULL, NULL,
1366                                                         &op->o_req_dn, &op->o_req_ndn );
1367                                 }
1368                                 break;
1369
1370                         default:
1371                                 assert( 0 );
1372                         }
1373                 }
1374         }
1375
1376         return SLAP_CB_CONTINUE;
1377 }
1378
1379 /*
1380  * response callback that adds/deletes member values when a group member
1381  * is modified.
1382  */
1383 static int
1384 memberof_res_rename( Operation *op, SlapReply *rs )
1385 {
1386         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1387         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1388
1389         struct berval   newPDN, newDN = BER_BVNULL, newPNDN, newNDN;
1390         int             i, rc;
1391         BerVarray       vals;
1392
1393         struct berval   save_dn, save_ndn;
1394         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
1395
1396         if ( MEMBEROF_REFINT( mo ) ) {
1397                 iswhat |= MEMBEROF_IS_MEMBER;
1398         }
1399
1400         if ( op->orr_nnewSup ) {
1401                 newPNDN = *op->orr_nnewSup;
1402
1403         } else {
1404                 dnParent( &op->o_req_ndn, &newPNDN );
1405         }
1406
1407         build_new_dn( &newNDN, &newPNDN, &op->orr_nnewrdn, op->o_tmpmemctx );
1408
1409         save_dn = op->o_req_dn;
1410         save_ndn = op->o_req_ndn;
1411
1412         op->o_req_dn = newNDN;
1413         op->o_req_ndn = newNDN;
1414         rc = memberof_isGroupOrMember( op, &iswhat );
1415         op->o_req_dn = save_dn;
1416         op->o_req_ndn = save_ndn;
1417
1418         if ( rc != LDAP_SUCCESS || iswhat == MEMBEROF_IS_NONE ) {
1419                 goto done;
1420         }
1421
1422         if ( op->orr_newSup ) {
1423                 newPDN = *op->orr_newSup;
1424
1425         } else {
1426                 dnParent( &op->o_req_dn, &newPDN );
1427         }
1428
1429         build_new_dn( &newDN, &newPDN, &op->orr_newrdn, op->o_tmpmemctx );
1430
1431         if ( iswhat & MEMBEROF_IS_GROUP ) {
1432                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1433                 rc = backend_attribute( op, NULL, &newNDN,
1434                                 mo->mo_ad_member, &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_memberof,
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         if ( MEMBEROF_REFINT( mo ) && ( iswhat & MEMBEROF_IS_MEMBER ) ) {
1449                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1450                 rc = backend_attribute( op, NULL, &newNDN,
1451                                 mo->mo_ad_memberof, &vals, ACL_READ );
1452                 op->o_bd->bd_info = (BackendInfo *)on;
1453
1454                 if ( rc == LDAP_SUCCESS ) {
1455                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1456                                 (void)memberof_value_modify( op, rs,
1457                                                 &vals[ i ], mo->mo_ad_member,
1458                                                 &op->o_req_dn, &op->o_req_ndn,
1459                                                 &newDN, &newNDN );
1460                         }
1461                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1462                 }
1463         }
1464
1465 done:;
1466         if ( !BER_BVISNULL( &newDN ) ) {
1467                 op->o_tmpfree( newDN.bv_val, op->o_tmpmemctx );
1468         }
1469         op->o_tmpfree( newNDN.bv_val, op->o_tmpmemctx );
1470
1471         return SLAP_CB_CONTINUE;
1472 }
1473
1474 static int
1475 memberof_response( Operation *op, SlapReply *rs )
1476 {
1477         if ( rs->sr_err != LDAP_SUCCESS ) {
1478                 return SLAP_CB_CONTINUE;
1479         }
1480
1481         switch ( op->o_tag ) {
1482         case LDAP_REQ_ADD:
1483                 return memberof_res_add( op, rs );
1484
1485         case LDAP_REQ_DELETE:
1486                 return memberof_res_delete( op, rs );
1487
1488         case LDAP_REQ_MODIFY:
1489                 return memberof_res_modify( op, rs );
1490
1491         case LDAP_REQ_MODDN:
1492                 return memberof_res_rename( op, rs );
1493
1494         default:
1495                 return SLAP_CB_CONTINUE;
1496         }
1497 }
1498
1499 static int
1500 memberof_db_init(
1501         BackendDB       *be,
1502         ConfigReply     *cr )
1503 {
1504         slap_overinst   *on = (slap_overinst *)be->bd_info;
1505         memberof_t      tmp_mo = { 0 }, *mo;
1506
1507         mo = (memberof_t *)ch_calloc( 1, sizeof( memberof_t ) );
1508
1509         /* safe default */
1510         mo->mo_dangling_err = LDAP_CONSTRAINT_VIOLATION;
1511
1512         on->on_bi.bi_private = (void *)mo;
1513
1514         return 0;
1515 }
1516
1517 enum {
1518         MO_DN = 1,
1519         MO_DANGLING,
1520         MO_REFINT,
1521         MO_GROUP_OC,
1522         MO_MEMBER_AD,
1523         MO_MEMBER_OF_AD,
1524 #if 0
1525         MO_REVERSE,
1526 #endif
1527
1528         MO_DANGLING_ERROR,
1529
1530         MO_LAST
1531 };
1532
1533 static ConfigDriver mo_cf_gen;
1534
1535 #define OID             "1.3.6.1.4.1.7136.2.666.4"
1536 #define OIDAT           OID ".1.1"
1537 #define OIDCFGAT        OID ".1.2"
1538 #define OIDOC           OID ".2.1"
1539 #define OIDCFGOC        OID ".2.2"
1540
1541
1542 static ConfigTable mo_cfg[] = {
1543         { "memberof-dn", "modifiersName",
1544                 2, 2, 0, ARG_MAGIC|ARG_DN|MO_DN, mo_cf_gen,
1545                 "( OLcfgOvAt:18.0 NAME 'olcMemberOfDN' "
1546                         "DESC 'DN to be used as modifiersName' "
1547                         "SYNTAX OMsDN SINGLE-VALUE )",
1548                 NULL, NULL },
1549
1550         { "memberof-dangling", "ignore|drop|error",
1551                 2, 2, 0, ARG_MAGIC|MO_DANGLING, mo_cf_gen,
1552                 "( OLcfgOvAt:18.1 NAME 'olcMemberOfDangling' "
1553                         "DESC 'Behavior with respect to dangling members, "
1554                                 "constrained to ignore, drop, error' "
1555                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1556                 NULL, NULL },
1557
1558         { "memberof-refint", "true|FALSE",
1559                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REFINT, mo_cf_gen,
1560                 "( OLcfgOvAt:18.2 NAME 'olcMemberOfRefInt' "
1561                         "DESC 'Take care of referential integrity' "
1562                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1563                 NULL, NULL },
1564
1565         { "memberof-group-oc", "objectClass",
1566                 2, 2, 0, ARG_MAGIC|MO_GROUP_OC, mo_cf_gen,
1567                 "( OLcfgOvAt:18.3 NAME 'olcMemberOfGroupOC' "
1568                         "DESC 'Group objectClass' "
1569                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1570                 NULL, NULL },
1571
1572         { "memberof-member-ad", "member attribute",
1573                 2, 2, 0, ARG_MAGIC|MO_MEMBER_AD, mo_cf_gen,
1574                 "( OLcfgOvAt:18.4 NAME 'olcMemberOfMemberAD' "
1575                         "DESC 'member attribute' "
1576                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1577                 NULL, NULL },
1578
1579         { "memberof-memberof-ad", "memberOf attribute",
1580                 2, 2, 0, ARG_MAGIC|MO_MEMBER_OF_AD, mo_cf_gen,
1581                 "( OLcfgOvAt:18.5 NAME 'olcMemberOfMemberOfAD' "
1582                         "DESC 'memberOf attribute' "
1583                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1584                 NULL, NULL },
1585
1586 #if 0
1587         { "memberof-reverse", "true|FALSE",
1588                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REVERSE, mo_cf_gen,
1589                 "( OLcfgOvAt:18.6 NAME 'olcMemberOfReverse' "
1590                         "DESC 'Take care of referential integrity "
1591                                 "also when directly modifying memberOf' "
1592                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1593                 NULL, NULL },
1594 #endif
1595
1596         { "memberof-dangling-error", "error code",
1597                 2, 2, 0, ARG_MAGIC|MO_DANGLING_ERROR, mo_cf_gen,
1598                 "( OLcfgOvAt:18.7 NAME 'olcMemberOfDanglingError' "
1599                         "DESC 'Error code returned in case of dangling back reference' "
1600                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1601                 NULL, NULL },
1602
1603         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1604 };
1605
1606 static ConfigOCs mo_ocs[] = {
1607         { "( OLcfgOvOc:18.1 "
1608                 "NAME 'olcMemberOf' "
1609                 "DESC 'Member-of configuration' "
1610                 "SUP olcOverlayConfig "
1611                 "MAY ( "
1612                         "olcMemberOfDN "
1613                         "$ olcMemberOfDangling "
1614                         "$ olcMemberOfDanglingError"
1615                         "$ olcMemberOfRefInt "
1616                         "$ olcMemberOfGroupOC "
1617                         "$ olcMemberOfMemberAD "
1618                         "$ olcMemberOfMemberOfAD "
1619 #if 0
1620                         "$ olcMemberOfReverse "
1621 #endif
1622                         ") "
1623                 ")",
1624                 Cft_Overlay, mo_cfg, NULL, NULL },
1625         { NULL, 0, NULL }
1626 };
1627
1628 static slap_verbmasks dangling_mode[] = {
1629         { BER_BVC( "ignore" ),          MEMBEROF_NONE },
1630         { BER_BVC( "drop" ),            MEMBEROF_FDANGLING_DROP },
1631         { BER_BVC( "error" ),           MEMBEROF_FDANGLING_ERROR },
1632         { BER_BVNULL,                   0 }
1633 };
1634
1635 static int
1636 memberof_make_group_filter( memberof_t *mo )
1637 {
1638         char            *ptr;
1639
1640         if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1641                 ch_free( mo->mo_groupFilterstr.bv_val );
1642         }
1643
1644         mo->mo_groupFilter.f_choice = LDAP_FILTER_EQUALITY;
1645         mo->mo_groupFilter.f_ava = &mo->mo_groupAVA;
1646
1647         mo->mo_groupFilter.f_av_desc = slap_schema.si_ad_objectClass;
1648         mo->mo_groupFilter.f_av_value = mo->mo_oc_group->soc_cname;
1649
1650         mo->mo_groupFilterstr.bv_len = STRLENOF( "(=)" )
1651                 + slap_schema.si_ad_objectClass->ad_cname.bv_len
1652                 + mo->mo_oc_group->soc_cname.bv_len;
1653         ptr = mo->mo_groupFilterstr.bv_val = ch_malloc( mo->mo_groupFilterstr.bv_len + 1 );
1654         *ptr++ = '(';
1655         ptr = lutil_strcopy( ptr, slap_schema.si_ad_objectClass->ad_cname.bv_val );
1656         *ptr++ = '=';
1657         ptr = lutil_strcopy( ptr, mo->mo_oc_group->soc_cname.bv_val );
1658         *ptr++ = ')';
1659         *ptr = '\0';
1660
1661         return 0;
1662 }
1663
1664 static int
1665 memberof_make_member_filter( memberof_t *mo )
1666 {
1667         char            *ptr;
1668
1669         if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1670                 ch_free( mo->mo_memberFilterstr.bv_val );
1671         }
1672
1673         mo->mo_memberFilter.f_choice = LDAP_FILTER_PRESENT;
1674         mo->mo_memberFilter.f_desc = mo->mo_ad_memberof;
1675
1676         mo->mo_memberFilterstr.bv_len = STRLENOF( "(=*)" )
1677                 + mo->mo_ad_memberof->ad_cname.bv_len;
1678         ptr = mo->mo_memberFilterstr.bv_val = ch_malloc( mo->mo_memberFilterstr.bv_len + 1 );
1679         *ptr++ = '(';
1680         ptr = lutil_strcopy( ptr, mo->mo_ad_memberof->ad_cname.bv_val );
1681         ptr = lutil_strcopy( ptr, "=*)" );
1682
1683         return 0;
1684 }
1685
1686 static int
1687 mo_cf_gen( ConfigArgs *c )
1688 {
1689         slap_overinst   *on = (slap_overinst *)c->bi;
1690         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1691
1692         int             i, rc = 0;
1693
1694         if ( c->op == SLAP_CONFIG_EMIT ) {
1695                 struct berval bv = BER_BVNULL;
1696
1697                 switch( c->type ) {
1698                 case MO_DN:
1699                         if ( mo->mo_dn.bv_val != NULL) {
1700                                 value_add_one( &c->rvalue_vals, &mo->mo_dn );
1701                                 value_add_one( &c->rvalue_nvals, &mo->mo_ndn );
1702                         }
1703                         break;
1704
1705                 case MO_DANGLING:
1706                         enum_to_verb( dangling_mode, (mo->mo_flags & MEMBEROF_FDANGLING_MASK), &bv );
1707                         if ( BER_BVISNULL( &bv ) ) {
1708                                 /* there's something wrong... */
1709                                 assert( 0 );
1710                                 rc = 1;
1711
1712                         } else {
1713                                 value_add_one( &c->rvalue_vals, &bv );
1714                         }
1715                         break;
1716
1717                 case MO_DANGLING_ERROR:
1718                         if ( mo->mo_flags & MEMBEROF_FDANGLING_ERROR ) {
1719                                 char buf[ SLAP_TEXT_BUFLEN ];
1720                                 enum_to_verb( slap_ldap_response_code, mo->mo_dangling_err, &bv );
1721                                 if ( BER_BVISNULL( &bv ) ) {
1722                                         bv.bv_len = snprintf( buf, sizeof( buf ), "0x%x", mo->mo_dangling_err );
1723                                         if ( bv.bv_len < sizeof( buf ) ) {
1724                                                 bv.bv_val = buf;
1725                                         } else {
1726                                                 rc = 1;
1727                                                 break;
1728                                         }
1729                                 }
1730                                 value_add_one( &c->rvalue_vals, &bv );
1731                         } else {
1732                                 rc = 1;
1733                         }
1734                         break;
1735
1736                 case MO_REFINT:
1737                         c->value_int = MEMBEROF_REFINT( mo );
1738                         break;
1739
1740 #if 0
1741                 case MO_REVERSE:
1742                         c->value_int = MEMBEROF_REVERSE( mo );
1743                         break;
1744 #endif
1745
1746                 case MO_GROUP_OC:
1747                         if ( mo->mo_oc_group != NULL ){
1748                                 value_add_one( &c->rvalue_vals, &mo->mo_oc_group->soc_cname );
1749                         }
1750                         break;
1751
1752                 case MO_MEMBER_AD:
1753                         if ( mo->mo_ad_member != NULL ){
1754                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_member->ad_cname );
1755                         }
1756                         break;
1757
1758                 case MO_MEMBER_OF_AD:
1759                         if ( mo->mo_ad_memberof != NULL ){
1760                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_memberof->ad_cname );
1761                         }
1762                         break;
1763
1764                 default:
1765                         assert( 0 );
1766                         return 1;
1767                 }
1768
1769                 return rc;
1770
1771         } else if ( c->op == LDAP_MOD_DELETE ) {
1772                 return 1;       /* FIXME */
1773
1774         } else {
1775                 switch( c->type ) {
1776                 case MO_DN:
1777                         if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1778                                 ber_memfree( mo->mo_dn.bv_val );
1779                                 ber_memfree( mo->mo_ndn.bv_val );
1780                         }
1781                         mo->mo_dn = c->value_dn;
1782                         mo->mo_ndn = c->value_ndn;
1783                         break;
1784
1785                 case MO_DANGLING:
1786                         i = verb_to_mask( c->argv[ 1 ], dangling_mode );
1787                         if ( BER_BVISNULL( &dangling_mode[ i ].word ) ) {
1788                                 return 1;
1789                         }
1790
1791                         mo->mo_flags &= ~MEMBEROF_FDANGLING_MASK;
1792                         mo->mo_flags |= dangling_mode[ i ].mask;
1793                         break;
1794
1795                 case MO_DANGLING_ERROR:
1796                         i = verb_to_mask( c->argv[ 1 ], slap_ldap_response_code );
1797                         if ( !BER_BVISNULL( &slap_ldap_response_code[ i ].word ) ) {
1798                                 mo->mo_dangling_err = slap_ldap_response_code[ i ].mask;
1799                         } else if ( lutil_atoix( &mo->mo_dangling_err, c->argv[ 1 ], 0 ) ) {
1800                                 return 1;
1801                         }
1802                         break;
1803
1804                 case MO_REFINT:
1805                         if ( c->value_int ) {
1806                                 mo->mo_flags |= MEMBEROF_FREFINT;
1807
1808                         } else {
1809                                 mo->mo_flags &= ~MEMBEROF_FREFINT;
1810                         }
1811                         break;
1812
1813 #if 0
1814                 case MO_REVERSE:
1815                         if ( c->value_int ) {
1816                                 mo->mo_flags |= MEMBEROF_FREVERSE;
1817
1818                         } else {
1819                                 mo->mo_flags &= ~MEMBEROF_FREVERSE;
1820                         }
1821                         break;
1822 #endif
1823
1824                 case MO_GROUP_OC: {
1825                         ObjectClass     *oc = NULL;
1826
1827                         oc = oc_find( c->argv[ 1 ] );
1828                         if ( oc == NULL ) {
1829                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1830                                         "unable to find group objectClass=\"%s\"",
1831                                         c->argv[ 1 ] );
1832                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1833                                         c->log, c->cr_msg, 0 );
1834                                 return 1;
1835                         }
1836
1837                         mo->mo_oc_group = oc;
1838                         memberof_make_group_filter( mo );
1839                         } break;
1840
1841                 case MO_MEMBER_AD: {
1842                         AttributeDescription    *ad = NULL;
1843                         const char              *text = NULL;
1844
1845
1846                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1847                         if ( rc != LDAP_SUCCESS ) {
1848                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1849                                         "unable to find member attribute=\"%s\": %s (%d)",
1850                                         c->argv[ 1 ], text, rc );
1851                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1852                                         c->log, c->cr_msg, 0 );
1853                                 return 1;
1854                         }
1855
1856                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1857                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1858                         {
1859                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1860                                         "member attribute=\"%s\" must either "
1861                                         "have DN (%s) or nameUID (%s) syntax",
1862                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1863                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1864                                         c->log, c->cr_msg, 0 );
1865                                 return 1;
1866                         }
1867
1868                         mo->mo_ad_member = ad;
1869                         } break;
1870
1871                 case MO_MEMBER_OF_AD: {
1872                         AttributeDescription    *ad = NULL;
1873                         const char              *text = NULL;
1874
1875
1876                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1877                         if ( rc != LDAP_SUCCESS ) {
1878                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1879                                         "unable to find memberof attribute=\"%s\": %s (%d)",
1880                                         c->argv[ 1 ], text, rc );
1881                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1882                                         c->log, c->cr_msg, 0 );
1883                                 return 1;
1884                         }
1885
1886                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1887                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1888                         {
1889                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1890                                         "memberof attribute=\"%s\" must either "
1891                                         "have DN (%s) or nameUID (%s) syntax",
1892                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1893                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1894                                         c->log, c->cr_msg, 0 );
1895                                 return 1;
1896                         }
1897
1898                         mo->mo_ad_memberof = ad;
1899                         memberof_make_member_filter( mo );
1900                         } break;
1901
1902                 default:
1903                         assert( 0 );
1904                         return 1;
1905                 }
1906         }
1907
1908         return 0;
1909 }
1910
1911 static int
1912 memberof_db_open(
1913         BackendDB       *be,
1914         ConfigReply     *cr )
1915 {
1916         slap_overinst   *on = (slap_overinst *)be->bd_info;
1917         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1918
1919         int             rc;
1920         const char      *text = NULL;
1921
1922         if( ! mo->mo_ad_memberof ){
1923                 rc = slap_str2ad( SLAPD_MEMBEROF_ATTR, &mo->mo_ad_memberof, &text );
1924                 if ( rc != LDAP_SUCCESS ) {
1925                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
1926                                         "unable to find attribute=\"%s\": %s (%d)\n",
1927                                         SLAPD_MEMBEROF_ATTR, text, rc );
1928                         return rc;
1929                 }
1930         }
1931
1932         if( ! mo->mo_ad_member ){
1933                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &mo->mo_ad_member, &text );
1934                 if ( rc != LDAP_SUCCESS ) {
1935                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
1936                                         "unable to find attribute=\"%s\": %s (%d)\n",
1937                                         SLAPD_GROUP_ATTR, text, rc );
1938                         return rc;
1939                 }
1940         }
1941
1942         if( ! mo->mo_oc_group ){
1943                 mo->mo_oc_group = oc_find( SLAPD_GROUP_CLASS );
1944                 if ( mo->mo_oc_group == NULL ) {
1945                         Debug( LDAP_DEBUG_ANY,
1946                                         "memberof_db_open: "
1947                                         "unable to find objectClass=\"%s\"\n",
1948                                         SLAPD_GROUP_CLASS, 0, 0 );
1949                         return 1;
1950                 }
1951         }
1952
1953         if ( BER_BVISNULL( &mo->mo_dn ) && !BER_BVISNULL( &be->be_rootdn ) ) {
1954                 ber_dupbv( &mo->mo_dn, &be->be_rootdn );
1955                 ber_dupbv( &mo->mo_ndn, &be->be_rootndn );
1956         }
1957
1958         if ( BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1959                 memberof_make_group_filter( mo );
1960         }
1961
1962         if ( BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1963                 memberof_make_member_filter( mo );
1964         }
1965
1966         return 0;
1967 }
1968
1969 static int
1970 memberof_db_destroy(
1971         BackendDB       *be,
1972         ConfigReply     *cr )
1973 {
1974         slap_overinst   *on = (slap_overinst *)be->bd_info;
1975         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1976
1977         if ( mo ) {
1978                 if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1979                         ber_memfree( mo->mo_dn.bv_val );
1980                         ber_memfree( mo->mo_ndn.bv_val );
1981                 }
1982
1983                 if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1984                         ber_memfree( mo->mo_groupFilterstr.bv_val );
1985                 }
1986
1987                 if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1988                         ber_memfree( mo->mo_memberFilterstr.bv_val );
1989                 }
1990
1991                 ber_memfree( mo );
1992         }
1993
1994         return 0;
1995 }
1996
1997 /* unused */
1998 static AttributeDescription     *ad_memberOf;
1999
2000 static struct {
2001         char    *desc;
2002         AttributeDescription **adp;
2003 } as[] = {
2004         { "( 1.2.840.113556.1.2.102 "
2005                 "NAME 'memberOf' "
2006                 "DESC 'Group that the entry belongs to' "
2007                 "SYNTAX '1.3.6.1.4.1.1466.115.121.1.12' "
2008                 "EQUALITY distinguishedNameMatch "      /* added */
2009                 "USAGE dSAOperation "                   /* added; questioned */
2010                 /* "NO-USER-MODIFICATION " */           /* add? */
2011                 "X-ORIGIN 'iPlanet Delegated Administrator' )",
2012                 &ad_memberOf },
2013         { NULL }
2014 };
2015
2016 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2017 static
2018 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2019 int
2020 memberof_initialize( void )
2021 {
2022         int                     code, i;
2023
2024         for ( i = 0; as[ i ].desc != NULL; i++ ) {
2025                 code = register_at( as[ i ].desc, as[ i ].adp, 0 );
2026                 if ( code ) {
2027                         Debug( LDAP_DEBUG_ANY,
2028                                 "memberof_initialize: register_at #%d failed\n",
2029                                 i, 0, 0 );
2030                         return code;
2031                 }
2032         }
2033
2034         memberof.on_bi.bi_type = "memberof";
2035
2036         memberof.on_bi.bi_db_init = memberof_db_init;
2037         memberof.on_bi.bi_db_open = memberof_db_open;
2038         memberof.on_bi.bi_db_destroy = memberof_db_destroy;
2039
2040         memberof.on_bi.bi_op_add = memberof_op_add;
2041         memberof.on_bi.bi_op_delete = memberof_op_delete;
2042         memberof.on_bi.bi_op_modify = memberof_op_modify;
2043
2044         memberof.on_response = memberof_response;
2045
2046         memberof.on_bi.bi_cf_ocs = mo_ocs;
2047
2048         code = config_register_schema( mo_cfg, mo_ocs );
2049         if ( code ) return code;
2050
2051         return overlay_register( &memberof );
2052 }
2053
2054 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2055 int
2056 init_module( int argc, char *argv[] )
2057 {
2058         return memberof_initialize();
2059 }
2060 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2061
2062 #endif /* SLAPD_OVER_MEMBEROF */