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                 BerVarray       old_vals = NULL;
 236
 237                 ldap_pvt_thread_pool_setkey_x( op->o_threadctx, key,
 238                                 saved_vals, memberof_saved_member_free, &old_vals, NULL );
 239                 if ( old_vals != NULL ) {
 240                         ber_bvarray_free( old_vals );
 241                 }
 242         }
 243 }
 244
 245 typedef struct memberof_cookie_t {
 246         AttributeDescription    *ad;
 247         void                    *key;
 248         int                     foundit;
 249 } memberof_cookie_t;
 250
 251 static int
 252 memberof_isGroupOrMember_cb( Operation *op, SlapReply *rs )
 253 {
 254         if ( rs->sr_type == REP_SEARCH ) {
 255                 memberof_cookie_t       *mc;
 256
 257                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 258                 mc->foundit = 1;
 259         }
 260
 261         return 0;
 262 }
 263
 264 /*
 265  * callback for internal search that saves the member attribute values
 266  * of groups being deleted.
 267  */
 268 static int
 269 memberof_saveMember_cb( Operation *op, SlapReply *rs )
 270 {
 271         if ( rs->sr_type == REP_SEARCH ) {
 272                 memberof_cookie_t       *mc;
 273                 Attribute               *a;
 274                 BerVarray               vals = NULL;
 275
 276                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 277                 mc->foundit = 1;
 278
 279                 assert( rs->sr_entry != NULL );
 280                 assert( rs->sr_entry->e_attrs != NULL );
 281
 282                 a = attr_find( rs->sr_entry->e_attrs, mc->ad );
 283                 if ( a != NULL ) {
 284                         vals = a->a_nvals;
 285                 }
 286
 287                 memberof_saved_member_set( op, mc->key, vals );
 288
 289                 if ( a && attr_find( a->a_next, mc->ad ) != NULL ) {
 290                         Debug( LDAP_DEBUG_ANY,
 291                                 "%s: memberof_saveMember_cb(\"%s\"): "
 292                                 "more than one occurrence of \"%s\" "
 293                                 "attribute.\n",
 294                                 op->o_log_prefix,
 295                                 rs->sr_entry->e_name.bv_val,
 296                                 mc->ad->ad_cname.bv_val );
 297                 }
 298         }
 299
 300         return 0;
 301 }
 302
 303 /*
 304  * the delete hook performs an internal search that saves the member
 305  * attribute values of groups being deleted.
 306  */
 307 static int
 308 memberof_isGroupOrMember( Operation *op, memberof_is_t *iswhatp )
 309 {
 310         slap_overinst           *on = (slap_overinst *)op->o_bd->bd_info;
 311         memberof_t              *mo = (memberof_t *)on->on_bi.bi_private;
 312
 313         Operation               op2 = *op;
 314         SlapReply               rs2 = { REP_RESULT };
 315         slap_callback           cb = { 0 };
 316         memberof_cookie_t       mc;
 317         AttributeName           an[ 2 ];
 318
 319         memberof_is_t           iswhat = MEMBEROF_IS_NONE;
 320
 321         assert( iswhatp != NULL );
 322         assert( *iswhatp != MEMBEROF_IS_NONE );
 323
 324         cb.sc_private = &mc;
 325         if ( op->o_tag == LDAP_REQ_DELETE ) {
 326                 cb.sc_response = memberof_saveMember_cb;
 327
 328         } else {
 329                 cb.sc_response = memberof_isGroupOrMember_cb;
 330         }
 331
 332         op2.o_tag = LDAP_REQ_SEARCH;
 333         op2.o_callback = &cb;
 334         op2.o_dn = op->o_bd->be_rootdn;
 335         op2.o_ndn = op->o_bd->be_rootndn;
 336
 337         op2.ors_scope = LDAP_SCOPE_BASE;
 338         op2.ors_deref = LDAP_DEREF_NEVER;
 339         BER_BVZERO( &an[ 1 ].an_name );
 340         op2.ors_attrs = an;
 341         op2.ors_attrsonly = 0;
 342         op2.ors_limit = NULL;
 343         op2.ors_slimit = 1;
 344         op2.ors_tlimit = SLAP_NO_LIMIT;
 345
 346         if ( *iswhatp & MEMBEROF_IS_GROUP ) {
 347                 mc.ad = mo->mo_ad_member;
 348                 mc.key = &saved_member_vals;
 349                 mc.foundit = 0;
 350                 an[ 0 ].an_desc = mo->mo_ad_member;
 351                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 352                 op2.ors_filterstr = mo->mo_groupFilterstr;
 353                 op2.ors_filter = &mo->mo_groupFilter;
 354
 355                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 356                 (void)op->o_bd->be_search( &op2, &rs2 );
 357                 op2.o_bd->bd_info = (BackendInfo *)on;
 358
 359                 if ( mc.foundit ) {
 360                         iswhat |= MEMBEROF_IS_GROUP;
 361
 362                 } else {
 363                         memberof_saved_member_set( op, mc.key, NULL );
 364                 }
 365         }
 366
 367         if ( *iswhatp & MEMBEROF_IS_MEMBER ) {
 368                 mc.ad = mo->mo_ad_memberof;
 369                 mc.key = &saved_memberof_vals;
 370                 mc.foundit = 0;
 371                 an[ 0 ].an_desc = mo->mo_ad_memberof;
 372                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 373                 op2.ors_filterstr = mo->mo_memberFilterstr;
 374                 op2.ors_filter = &mo->mo_memberFilter;
 375
 376                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 377                 (void)op->o_bd->be_search( &op2, &rs2 );
 378                 op2.o_bd->bd_info = (BackendInfo *)on;
 379
 380                 if ( mc.foundit ) {
 381                         iswhat |= MEMBEROF_IS_MEMBER;
 382
 383                 } else {
 384                         memberof_saved_member_set( op, mc.key, NULL );
 385                 }
 386         }
 387
 388         *iswhatp = iswhat;
 389
 390         return LDAP_SUCCESS;
 391 }
 392
 393 /*
 394  * response callback that adds memberof values when a group is modified.
 395  */
 396 static int
 397 memberof_value_modify(
 398         Operation               *op,
 399         SlapReply               *rs,
 400         struct berval           *ndn,
 401         AttributeDescription    *ad,
 402         struct berval           *old_dn,
 403         struct berval           *old_ndn,
 404         struct berval           *new_dn,
 405         struct berval           *new_ndn )
 406 {
 407         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 408         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 409
 410         Operation       op2 = *op;
 411         SlapReply       rs2 = { REP_RESULT };
 412         slap_callback   cb = { NULL, slap_null_cb, NULL, NULL };
 413         Modifications   mod[ 2 ] = { { { 0 } } }, *ml;
 414         struct berval   values[ 4 ], nvalues[ 4 ];
 415         int             mcnt = 0;
 416
 417         op2.o_tag = LDAP_REQ_MODIFY;
 418
 419         op2.o_req_dn = *ndn;
 420         op2.o_req_ndn = *ndn;
 421
 422         op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 423
 424         op2.o_callback = &cb;
 425         op2.o_dn = op->o_bd->be_rootdn;
 426         op2.o_ndn = op->o_bd->be_rootndn;
 427         op2.orm_modlist = NULL;
 428
 429         if ( !BER_BVISNULL( &mo->mo_ndn ) ) {
 430                 ml = &mod[ mcnt ];
 431                 ml->sml_numvals = 1;
 432                 ml->sml_values = &values[ 0 ];
 433                 ml->sml_values[ 0 ] = mo->mo_dn;
 434                 BER_BVZERO( &ml->sml_values[ 1 ] );
 435                 ml->sml_nvalues = &nvalues[ 0 ];
 436                 ml->sml_nvalues[ 0 ] = mo->mo_ndn;
 437                 BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 438                 ml->sml_desc = slap_schema.si_ad_modifiersName;
 439                 ml->sml_type = ml->sml_desc->ad_cname;
 440                 ml->sml_op = LDAP_MOD_REPLACE;
 441                 ml->sml_flags = SLAP_MOD_INTERNAL;
 442                 ml->sml_next = op2.orm_modlist;
 443                 op2.orm_modlist = ml;
 444
 445                 mcnt++;
 446         }
 447
 448         ml = &mod[ mcnt ];
 449         ml->sml_numvals = 1;
 450         ml->sml_values = &values[ 2 ];
 451         BER_BVZERO( &ml->sml_values[ 1 ] );
 452         ml->sml_nvalues = &nvalues[ 2 ];
 453         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 454         ml->sml_desc = ad;
 455         ml->sml_type = ml->sml_desc->ad_cname;
 456         ml->sml_flags = SLAP_MOD_INTERNAL;
 457         ml->sml_next = op2.orm_modlist;
 458         op2.orm_modlist = ml;
 459
 460         if ( new_ndn != NULL ) {
 461                 assert( !BER_BVISNULL( new_dn ) );
 462                 assert( !BER_BVISNULL( new_ndn ) );
 463
 464                 ml = &mod[ mcnt ];
 465                 ml->sml_op = LDAP_MOD_ADD;
 466
 467                 ml->sml_values[ 0 ] = *new_dn;
 468                 ml->sml_nvalues[ 0 ] = *new_ndn;
 469
 470                 (void)op->o_bd->be_modify( &op2, &rs2 );
 471                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 472                         char buf[ SLAP_TEXT_BUFLEN ];
 473                         snprintf( buf, sizeof( buf ),
 474                                 "memberof_value_modify %s=\"%s\" failed err=%d text=%s",
 475                                 ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err,
 476                                 rs2.sr_text ? rs2.sr_text : "" );
 477                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 478                                 op->o_log_prefix, buf, 0 );
 479                 }
 480
 481                 assert( op2.orm_modlist == &mod[ mcnt ] );
 482                 assert( mcnt == 0 || op2.orm_modlist->sml_next == &mod[ 0 ] );
 483                 ml = op2.orm_modlist->sml_next;
 484                 if ( mcnt == 1 ) {
 485                         assert( ml == &mod[ 0 ] );
 486                         ml = ml->sml_next;
 487                 }
 488                 if ( ml != NULL ) {
 489                         slap_mods_free( ml, 1 );
 490                 }
 491
 492                 mod[ 0 ].sml_next = NULL;
 493         }
 494
 495         if ( old_ndn != NULL ) {
 496                 assert( !BER_BVISNULL( old_dn ) );
 497                 assert( !BER_BVISNULL( old_ndn ) );
 498
 499                 ml = &mod[ mcnt ];
 500                 ml->sml_op = LDAP_MOD_DELETE;
 501
 502                 ml->sml_values[ 0 ] = *old_dn;
 503                 ml->sml_nvalues[ 0 ] = *old_ndn;
 504
 505                 (void)op->o_bd->be_modify( &op2, &rs2 );
 506                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 507                         char buf[ SLAP_TEXT_BUFLEN ];
 508                         snprintf( buf, sizeof( buf ),
 509                                 "memberof_value_modify %s=\"%s\" failed err=%d text=%s",
 510                                 ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err,
 511                                 rs2.sr_text ? rs2.sr_text : "" );
 512                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 513                                 op->o_log_prefix, buf, 0 );
 514                 }
 515
 516                 assert( op2.orm_modlist == &mod[ mcnt ] );
 517                 ml = op2.orm_modlist->sml_next;
 518                 if ( mcnt == 1 ) {
 519                         assert( ml == &mod[ 0 ] );
 520                         ml = ml->sml_next;
 521                 }
 522                 if ( ml != NULL ) {
 523                         slap_mods_free( ml, 1 );
 524                 }
 525         }
 526
 527         /* FIXME: if old_group_ndn doesn't exist, both delete __and__
 528          * add will fail; better split in two operations, although
 529          * not optimal in terms of performance.  At least it would
 530          * move towards self-repairing capabilities. */
 531
 532         op2.o_bd->bd_info = (BackendInfo *)on;
 533
 534         return rs2.sr_err;
 535 }
 536
 537 static int
 538 memberof_op_add( Operation *op, SlapReply *rs )
 539 {
 540         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 541         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 542
 543         Attribute       **ap, **map = NULL;
 544         int             rc = SLAP_CB_CONTINUE;
 545         int             i;
 546         struct berval   save_dn, save_ndn;
 547
 548         if ( op->ora_e->e_attrs == NULL ) {
 549                 /* FIXME: global overlay; need to deal with */
 550                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 551                         "consistency checks not implemented when overlay "
 552                         "is instantiated as global.\n",
 553                         op->o_log_prefix, op->o_req_dn.bv_val, 0 );
 554                 return SLAP_CB_CONTINUE;
 555         }
 556
 557         if ( MEMBEROF_REVERSE( mo ) ) {
 558                 for ( ap = &op->ora_e->e_attrs; *ap; ap = &(*ap)->a_next ) {
 559                         Attribute       *a = *ap;
 560
 561                         if ( a->a_desc == mo->mo_ad_memberof ) {
 562                                 map = ap;
 563                                 break;
 564                         }
 565                 }
 566         }
 567
 568         save_dn = op->o_dn;
 569         save_ndn = op->o_ndn;
 570
 571         if ( MEMBEROF_DANGLING_CHECK( mo )
 572                         && !get_relax( op )
 573                         && is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) )
 574         {
 575                 op->o_dn = op->o_bd->be_rootdn;
 576                 op->o_dn = op->o_bd->be_rootndn;
 577                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 578
 579                 for ( ap = &op->ora_e->e_attrs; *ap; ) {
 580                         Attribute       *a = *ap;
 581
 582                         if ( !is_ad_subtype( a->a_desc, mo->mo_ad_member ) ) {
 583                                 ap = &a->a_next;
 584                                 continue;
 585                         }
 586
 587                         assert( a->a_nvals != NULL );
 588
 589                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 590                                 Entry           *e = NULL;
 591
 592                                 rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 593                                                 NULL, NULL, 0, &e );
 594                                 if ( rc == LDAP_SUCCESS ) {
 595                                         be_entry_release_r( op, e );
 596                                         continue;
 597                                 }
 598
 599                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 600                                         rc = rs->sr_err = mo->mo_dangling_err;
 601                                         rs->sr_text = "adding non-existing object "
 602                                                 "as group member";
 603                                         send_ldap_result( op, rs );
 604                                         goto done;
 605                                 }
 606
 607                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 608                                         int     j;
 609
 610                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 611                                                 "member=\"%s\" does not exist (stripping...)\n",
 612                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 613                                                 a->a_vals[ i ].bv_val );
 614
 615                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 616                                         ber_memfree( a->a_vals[ i ].bv_val );
 617                                         BER_BVZERO( &a->a_vals[ i ] );
 618                                         if ( a->a_nvals != a->a_vals ) {
 619                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 620                                                 BER_BVZERO( &a->a_nvals[ i ] );
 621                                         }
 622                                         if ( j - i == 1 ) {
 623                                                 break;
 624                                         }
 625
 626                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 627                                                 sizeof( struct berval ) * ( j - i ) );
 628                                         if ( a->a_nvals != a->a_vals ) {
 629                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 630                                                         sizeof( struct berval ) * ( j - i ) );
 631                                         }
 632                                         i--;
 633                                 }
 634                         }
 635
 636                         /* If all values have been removed,
 637                          * remove the attribute itself. */
 638                         if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 639                                 *ap = a->a_next;
 640                                 attr_free( a );
 641
 642                         } else {
 643                                 ap = &a->a_next;
 644                         }
 645                 }
 646                 op->o_dn = save_dn;
 647                 op->o_ndn = save_ndn;
 648                 op->o_bd->bd_info = (BackendInfo *)on;
 649         }
 650
 651         if ( map != NULL ) {
 652                 Attribute               *a = *map;
 653                 AccessControlState      acl_state = ACL_STATE_INIT;
 654
 655                 for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 656                         Entry           *e;
 657
 658                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 659                         /* access is checked with the original identity */
 660                         rc = access_allowed( op, op->ora_e, mo->mo_ad_memberof,
 661                                         &a->a_nvals[ i ], ACL_WADD,
 662                                         &acl_state );
 663                         if ( rc == 0 ) {
 664                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 665                                 rs->sr_text = NULL;
 666                                 send_ldap_result( op, rs );
 667                                 goto done;
 668                         }
 669                         rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 670                                         NULL, NULL, 0, &e );
 671                         op->o_bd->bd_info = (BackendInfo *)on;
 672                         if ( rc != LDAP_SUCCESS ) {
 673                                 if ( get_relax( op ) ) {
 674                                         continue;
 675                                 }
 676
 677                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 678                                         rc = rs->sr_err = mo->mo_dangling_err;
 679                                         rs->sr_text = "adding non-existing object "
 680                                                 "as memberof";
 681                                         send_ldap_result( op, rs );
 682                                         goto done;
 683                                 }
 684
 685                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 686                                         int     j;
 687
 688                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 689                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 690                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 691                                                 a->a_nvals[ i ].bv_val );
 692
 693                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 694                                         ber_memfree( a->a_vals[ i ].bv_val );
 695                                         BER_BVZERO( &a->a_vals[ i ] );
 696                                         if ( a->a_nvals != a->a_vals ) {
 697                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 698                                                 BER_BVZERO( &a->a_nvals[ i ] );
 699                                         }
 700                                         if ( j - i == 1 ) {
 701                                                 break;
 702                                         }
 703
 704                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 705                                                 sizeof( struct berval ) * ( j - i ) );
 706                                         if ( a->a_nvals != a->a_vals ) {
 707                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 708                                                         sizeof( struct berval ) * ( j - i ) );
 709                                         }
 710                                         i--;
 711                                 }
 712
 713                                 continue;
 714                         }
 715
 716                         /* access is checked with the original identity */
 717                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 718                         rc = access_allowed( op, e, mo->mo_ad_member,
 719                                         &op->o_req_ndn, ACL_WADD, NULL );
 720                         be_entry_release_r( op, e );
 721                         op->o_bd->bd_info = (BackendInfo *)on;
 722
 723                         if ( !rc ) {
 724                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 725                                 rs->sr_text = "insufficient access to object referenced by memberof";
 726                                 send_ldap_result( op, rs );
 727                                 goto done;
 728                         }
 729                 }
 730
 731                 if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 732                         *map = a->a_next;
 733                         attr_free( a );
 734                 }
 735         }
 736
 737         rc = SLAP_CB_CONTINUE;
 738
 739 done:;
 740         op->o_dn = save_dn;
 741         op->o_ndn = save_ndn;
 742         op->o_bd->bd_info = (BackendInfo *)on;
 743
 744         return rc;
 745 }
 746
 747 static int
 748 memberof_op_delete( Operation *op, SlapReply *rs )
 749 {
 750         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 751         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 752
 753         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
 754
 755         if ( MEMBEROF_REFINT( mo ) ) {
 756                 iswhat = MEMBEROF_IS_BOTH;
 757         }
 758
 759         memberof_isGroupOrMember( op, &iswhat );
 760
 761         return SLAP_CB_CONTINUE;
 762 }
 763
 764 static int
 765 memberof_op_modify( Operation *op, SlapReply *rs )
 766 {
 767         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 768         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 769
 770         Modifications   **mlp, **mmlp = NULL;
 771         int             rc = SLAP_CB_CONTINUE;
 772         struct berval   save_dn, save_ndn;
 773         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
 774
 775         if ( MEMBEROF_REVERSE( mo ) ) {
 776                 for ( mlp = &op->orm_modlist; *mlp; mlp = &(*mlp)->sml_next ) {
 777                         Modifications   *ml = *mlp;
 778
 779                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
 780                                 mmlp = mlp;
 781                                 break;
 782                         }
 783                 }
 784         }
 785
 786         save_dn = op->o_dn;
 787         save_ndn = op->o_ndn;
 788
 789         if ( memberof_isGroupOrMember( op, &iswhat ) == LDAP_SUCCESS
 790                 && ( iswhat & MEMBEROF_IS_GROUP ) )
 791         {
 792                 Modifications *ml;
 793                 int save_member = 0;
 794
 795                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 796                         if ( ml->sml_desc == mo->mo_ad_member ) {
 797                                 switch ( ml->sml_op ) {
 798                                 case LDAP_MOD_DELETE:
 799                                 case LDAP_MOD_REPLACE:
 800                                         save_member = 1;
 801                                         break;
 802                                 }
 803                         }
 804                 }
 805
 806                 if ( save_member ) {
 807                         BerVarray       vals = NULL;
 808
 809                         op->o_dn = op->o_bd->be_rootdn;
 810                         op->o_dn = op->o_bd->be_rootndn;
 811                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 812                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
 813                                         mo->mo_ad_member, &vals, ACL_READ );
 814                         op->o_bd->bd_info = (BackendInfo *)on;
 815                         if ( rc == LDAP_SUCCESS && vals != NULL ) {
 816                                 memberof_saved_member_set( op, &saved_member_vals, vals );
 817                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
 818                         }
 819                 }
 820
 821                 if ( MEMBEROF_DANGLING_CHECK( mo )
 822                                 && !get_relax( op ) )
 823                 {
 824                         op->o_dn = op->o_bd->be_rootdn;
 825                         op->o_dn = op->o_bd->be_rootndn;
 826                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 827
 828                         assert( op->orm_modlist != NULL );
 829
 830                         for ( mlp = &op->orm_modlist; *mlp; ) {
 831                                 Modifications   *ml = *mlp;
 832                                 int             i;
 833
 834                                 if ( !is_ad_subtype( ml->sml_desc, mo->mo_ad_member ) ) {
 835                                         mlp = &ml->sml_next;
 836                                         continue;
 837                                 }
 838
 839                                 switch ( ml->sml_op ) {
 840                                 case LDAP_MOD_DELETE:
 841                                         /* we don't care about cancellations: if the value
 842                                          * exists, fine; if it doesn't, we let the underlying
 843                                          * database fail as appropriate; */
 844                                         mlp = &ml->sml_next;
 845                                         break;
 846
 847                                 case LDAP_MOD_REPLACE:
 848                                 case LDAP_MOD_ADD:
 849                                         /* NOTE: right now, the attributeType we use
 850                                          * for member must have a normalized value */
 851                                         assert( ml->sml_nvalues != NULL );
 852
 853                                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 854                                                 int             rc;
 855                                                 Entry           *e;
 856
 857                                                 if ( be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 858                                                                 NULL, NULL, 0, &e ) == LDAP_SUCCESS )
 859                                                 {
 860                                                         be_entry_release_r( op, e );
 861                                                         continue;
 862                                                 }
 863
 864                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 865                                                         rc = rs->sr_err = mo->mo_dangling_err;
 866                                                         rs->sr_text = "adding non-existing object "
 867                                                                 "as group member";
 868                                                         send_ldap_result( op, rs );
 869                                                         goto done;
 870                                                 }
 871
 872                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 873                                                         int     j;
 874
 875                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 876                                                                 "member=\"%s\" does not exist (stripping...)\n",
 877                                                                 op->o_log_prefix, op->o_req_dn.bv_val,
 878                                                                 ml->sml_nvalues[ i ].bv_val );
 879
 880                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 881                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 882                                                         BER_BVZERO( &ml->sml_values[ i ] );
 883                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
 884                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
 885                                                         ml->sml_numvals--;
 886                                                         if ( j - i == 1 ) {
 887                                                                 break;
 888                                                         }
 889
 890                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 891                                                                 sizeof( struct berval ) * ( j - i ) );
 892                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 893                                                                 sizeof( struct berval ) * ( j - i ) );
 894                                                         i--;
 895                                                 }
 896                                         }
 897
 898                                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 899                                                 *mlp = ml->sml_next;
 900                                                 slap_mod_free( &ml->sml_mod, 0 );
 901                                                 free( ml );
 902
 903                                         } else {
 904                                                 mlp = &ml->sml_next;
 905                                         }
 906
 907                                         break;
 908
 909                                 default:
 910                                         assert( 0 );
 911                                 }
 912                         }
 913                 }
 914         }
 915
 916         if ( mmlp != NULL ) {
 917                 Modifications   *ml = *mmlp;
 918                 int             i;
 919                 Entry           *target;
 920
 921                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 922                 rc = be_entry_get_rw( op, &op->o_req_ndn,
 923                                 NULL, NULL, 0, &target );
 924                 op->o_bd->bd_info = (BackendInfo *)on;
 925                 if ( rc != LDAP_SUCCESS ) {
 926                         rc = rs->sr_err = LDAP_NO_SUCH_OBJECT;
 927                         send_ldap_result( op, rs );
 928                         goto done;
 929                 }
 930
 931                 switch ( ml->sml_op ) {
 932                 case LDAP_MOD_DELETE:
 933                         if ( ml->sml_nvalues != NULL ) {
 934                                 AccessControlState      acl_state = ACL_STATE_INIT;
 935
 936                                 for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 937                                         Entry           *e;
 938
 939                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 940                                         /* access is checked with the original identity */
 941                                         rc = access_allowed( op, target,
 942                                                         mo->mo_ad_memberof,
 943                                                         &ml->sml_nvalues[ i ],
 944                                                         ACL_WDEL,
 945                                                         &acl_state );
 946                                         if ( rc == 0 ) {
 947                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 948                                                 rs->sr_text = NULL;
 949                                                 send_ldap_result( op, rs );
 950                                                 goto done2;
 951                                         }
 952
 953                                         rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 954                                                         NULL, NULL, 0, &e );
 955                                         op->o_bd->bd_info = (BackendInfo *)on;
 956                                         if ( rc != LDAP_SUCCESS ) {
 957                                                 if ( get_relax( op ) ) {
 958                                                         continue;
 959                                                 }
 960
 961                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 962                                                         rc = rs->sr_err = mo->mo_dangling_err;
 963                                                         rs->sr_text = "deleting non-existing object "
 964                                                                 "as memberof";
 965                                                         send_ldap_result( op, rs );
 966                                                         goto done2;
 967                                                 }
 968
 969                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 970                                                         int     j;
 971
 972                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 973                                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 974                                                                 op->o_log_prefix, op->o_req_ndn.bv_val,
 975                                                                 ml->sml_nvalues[ i ].bv_val );
 976
 977                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 978                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 979                                                         BER_BVZERO( &ml->sml_values[ i ] );
 980                                                         if ( ml->sml_nvalues != ml->sml_values ) {
 981                                                                 ber_memfree( ml->sml_nvalues[ i ].bv_val );
 982                                                                 BER_BVZERO( &ml->sml_nvalues[ i ] );
 983                                                         }
 984                                                         ml->sml_numvals--;
 985                                                         if ( j - i == 1 ) {
 986                                                                 break;
 987                                                         }
 988
 989                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 990                                                                 sizeof( struct berval ) * ( j - i ) );
 991                                                         if ( ml->sml_nvalues != ml->sml_values ) {
 992                                                                 AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 993                                                                         sizeof( struct berval ) * ( j - i ) );
 994                                                         }
 995                                                         i--;
 996                                                 }
 997
 998                                                 continue;
 999                                         }
1000
1001                                         /* access is checked with the original identity */
1002                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1003                                         rc = access_allowed( op, e, mo->mo_ad_member,
1004                                                         &op->o_req_ndn,
1005                                                         ACL_WDEL, NULL );
1006                                         be_entry_release_r( op, e );
1007                                         op->o_bd->bd_info = (BackendInfo *)on;
1008
1009                                         if ( !rc ) {
1010                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1011                                                 rs->sr_text = "insufficient access to object referenced by memberof";
1012                                                 send_ldap_result( op, rs );
1013                                                 goto done;
1014                                         }
1015                                 }
1016
1017                                 if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1018                                         *mmlp = ml->sml_next;
1019                                         slap_mod_free( &ml->sml_mod, 0 );
1020                                         free( ml );
1021                                 }
1022
1023                                 break;
1024                         }
1025                         /* fall thru */
1026
1027                 case LDAP_MOD_REPLACE:
1028
1029                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1030                         /* access is checked with the original identity */
1031                         rc = access_allowed( op, target,
1032                                         mo->mo_ad_memberof,
1033                                         NULL,
1034                                         ACL_WDEL, NULL );
1035                         op->o_bd->bd_info = (BackendInfo *)on;
1036                         if ( rc == 0 ) {
1037                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1038                                 rs->sr_text = NULL;
1039                                 send_ldap_result( op, rs );
1040                                 goto done2;
1041                         }
1042
1043                         if ( ml->sml_op == LDAP_MOD_DELETE ) {
1044                                 break;
1045                         }
1046                         /* fall thru */
1047
1048                 case LDAP_MOD_ADD: {
1049                         AccessControlState      acl_state = ACL_STATE_INIT;
1050
1051                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
1052                                 Entry           *e;
1053
1054                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1055                                 /* access is checked with the original identity */
1056                                 rc = access_allowed( op, target,
1057                                                 mo->mo_ad_memberof,
1058                                                 &ml->sml_nvalues[ i ],
1059                                                 ACL_WADD,
1060                                                 &acl_state );
1061                                 if ( rc == 0 ) {
1062                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1063                                         rs->sr_text = NULL;
1064                                         send_ldap_result( op, rs );
1065                                         goto done2;
1066                                 }
1067
1068                                 rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
1069                                                 NULL, NULL, 0, &e );
1070                                 op->o_bd->bd_info = (BackendInfo *)on;
1071                                 if ( rc != LDAP_SUCCESS ) {
1072                                         if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
1073                                                 rc = rs->sr_err = mo->mo_dangling_err;
1074                                                 rs->sr_text = "adding non-existing object "
1075                                                         "as memberof";
1076                                                 send_ldap_result( op, rs );
1077                                                 goto done2;
1078                                         }
1079
1080                                         if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1081                                                 int     j;
1082
1083                                                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1084                                                         "memberof=\"%s\" does not exist (stripping...)\n",
1085                                                         op->o_log_prefix, op->o_req_ndn.bv_val,
1086                                                         ml->sml_nvalues[ i ].bv_val );
1087
1088                                                 for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1089                                                 ber_memfree( ml->sml_values[ i ].bv_val );
1090                                                 BER_BVZERO( &ml->sml_values[ i ] );
1091                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1092                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
1093                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
1094                                                 }
1095                                                 ml->sml_numvals--;
1096                                                 if ( j - i == 1 ) {
1097                                                         break;
1098                                                 }
1099
1100                                                 AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1101                                                         sizeof( struct berval ) * ( j - i ) );
1102                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1103                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1104                                                                 sizeof( struct berval ) * ( j - i ) );
1105                                                 }
1106                                                 i--;
1107                                         }
1108
1109                                         continue;
1110                                 }
1111
1112                                 /* access is checked with the original identity */
1113                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1114                                 rc = access_allowed( op, e, mo->mo_ad_member,
1115                                                 &op->o_req_ndn,
1116                                                 ACL_WDEL, NULL );
1117                                 be_entry_release_r( op, e );
1118                                 op->o_bd->bd_info = (BackendInfo *)on;
1119
1120                                 if ( !rc ) {
1121                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1122                                         rs->sr_text = "insufficient access to object referenced by memberof";
1123                                         send_ldap_result( op, rs );
1124                                         goto done;
1125                                 }
1126                         }
1127
1128                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1129                                 *mmlp = ml->sml_next;
1130                                 slap_mod_free( &ml->sml_mod, 0 );
1131                                 free( ml );
1132                         }
1133
1134                         } break;
1135
1136                 default:
1137                         assert( 0 );
1138                 }
1139
1140 done2:;
1141                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1142                 be_entry_release_r( op, target );
1143                 op->o_bd->bd_info = (BackendInfo *)on;
1144         }
1145
1146         rc = SLAP_CB_CONTINUE;
1147
1148 done:;
1149         op->o_dn = save_dn;
1150         op->o_ndn = save_ndn;
1151         op->o_bd->bd_info = (BackendInfo *)on;
1152
1153         return rc;
1154 }
1155
1156 /*
1157  * response callback that adds memberof values when a group is added.
1158  */
1159 static int
1160 memberof_res_add( Operation *op, SlapReply *rs )
1161 {
1162         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1163         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1164
1165         int             i;
1166
1167         if ( MEMBEROF_REVERSE( mo ) ) {
1168                 Attribute       *ma;
1169
1170                 ma = attr_find( op->ora_e->e_attrs, mo->mo_ad_memberof );
1171                 if ( ma != NULL ) {
1172                         Operation       op2 = *op;
1173                         SlapReply       rs2 = { 0 };
1174
1175                         /* relax is required to allow to add
1176                          * a non-existing member */
1177                         op2.o_relax = SLAP_CONTROL_CRITICAL;
1178
1179                         for ( i = 0; !BER_BVISNULL( &ma->a_nvals[ i ] ); i++ ) {
1180
1181                                 /* the modification is attempted
1182                                  * with the original identity */
1183                                 (void)memberof_value_modify( &op2, &rs2,
1184                                         &ma->a_nvals[ i ], mo->mo_ad_member,
1185                                         NULL, NULL, &op->o_req_dn, &op->o_req_ndn );
1186                         }
1187                 }
1188         }
1189
1190         if ( is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) ) {
1191                 Attribute       *a;
1192
1193                 for ( a = attrs_find( op->ora_e->e_attrs, mo->mo_ad_member );
1194                                 a != NULL;
1195                                 a = attrs_find( a->a_next, mo->mo_ad_member ) )
1196                 {
1197                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
1198                                 (void)memberof_value_modify( op, rs,
1199                                                 &a->a_nvals[ i ],
1200                                                 mo->mo_ad_memberof,
1201                                                 NULL, NULL,
1202                                                 &op->o_req_dn,
1203                                                 &op->o_req_ndn );
1204                         }
1205                 }
1206         }
1207
1208         return SLAP_CB_CONTINUE;
1209 }
1210
1211 /*
1212  * response callback that deletes memberof values when a group is deleted.
1213  */
1214 static int
1215 memberof_res_delete( Operation *op, SlapReply *rs )
1216 {
1217         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1218         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1219
1220         BerVarray       vals;
1221         int             i;
1222
1223         vals = memberof_saved_member_get( op, &saved_member_vals );
1224         if ( vals != NULL ) {
1225                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1226                         (void)memberof_value_modify( op, rs,
1227                                         &vals[ i ], mo->mo_ad_memberof,
1228                                         &op->o_req_dn, &op->o_req_ndn,
1229                                         NULL, NULL );
1230                 }
1231
1232                 memberof_saved_member_set( op, &saved_memberof_vals, NULL );
1233                 ber_bvarray_free( vals );
1234         }
1235
1236         if ( MEMBEROF_REFINT( mo ) ) {
1237                 vals = memberof_saved_member_get( op, &saved_memberof_vals );
1238                 if ( vals != NULL ) {
1239                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1240                                 (void)memberof_value_modify( op, rs,
1241                                                 &vals[ i ], mo->mo_ad_member,
1242                                                 &op->o_req_dn, &op->o_req_ndn,
1243                                                 NULL, NULL );
1244                         }
1245
1246                         memberof_saved_member_set( op, &saved_member_vals, NULL );
1247                         ber_bvarray_free( vals );
1248                 }
1249         }
1250
1251         return SLAP_CB_CONTINUE;
1252 }
1253
1254 /*
1255  * response callback that adds/deletes memberof values when a group
1256  * is modified.
1257  */
1258 static int
1259 memberof_res_modify( Operation *op, SlapReply *rs )
1260 {
1261         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1262         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1263
1264         int             i, rc;
1265         Modifications   *ml, *mml = NULL;
1266         BerVarray       vals;
1267         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
1268
1269         if ( MEMBEROF_REVERSE( mo ) ) {
1270                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1271                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
1272                                 mml = ml;
1273                                 break;
1274                         }
1275                 }
1276         }
1277
1278         if ( mml != NULL ) {
1279                 BerVarray       vals = mml->sml_nvalues;
1280
1281                 switch ( mml->sml_op ) {
1282                 case LDAP_MOD_DELETE:
1283                         if ( vals != NULL ) {
1284                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1285                                         memberof_value_modify( op, rs,
1286                                                         &vals[ i ], mo->mo_ad_member,
1287                                                         &op->o_req_dn, &op->o_req_ndn,
1288                                                         NULL, NULL );
1289                                 }
1290                                 break;
1291                         }
1292                         /* fall thru */
1293
1294                 case LDAP_MOD_REPLACE:
1295                         /* delete all ... */
1296                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1297                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
1298                                         mo->mo_ad_memberof, &vals, ACL_READ );
1299                         op->o_bd->bd_info = (BackendInfo *)on;
1300                         if ( rc == LDAP_SUCCESS ) {
1301                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1302                                         (void)memberof_value_modify( op, rs,
1303                                                         &vals[ i ], mo->mo_ad_member,
1304                                                         &op->o_req_dn, &op->o_req_ndn,
1305                                                         NULL, NULL );
1306                                 }
1307                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
1308                         }
1309
1310                         if ( ml->sml_op == LDAP_MOD_DELETE ) {
1311                                 break;
1312                         }
1313                         /* fall thru */
1314
1315                 case LDAP_MOD_ADD:
1316                         assert( vals != NULL );
1317
1318                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1319                                 memberof_value_modify( op, rs,
1320                                                 &vals[ i ], mo->mo_ad_member,
1321                                                 NULL, NULL,
1322                                                 &op->o_req_dn, &op->o_req_ndn );
1323                         }
1324                         break;
1325
1326                 default:
1327                         assert( 0 );
1328                 }
1329         }
1330
1331         if ( memberof_isGroupOrMember( op, &iswhat ) == LDAP_SUCCESS
1332                         && ( iswhat & MEMBEROF_IS_GROUP ) )
1333         {
1334                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1335                         if ( ml->sml_desc != mo->mo_ad_member ) {
1336                                 continue;
1337                         }
1338
1339                         switch ( ml->sml_op ) {
1340                         case LDAP_MOD_DELETE:
1341                                 vals = ml->sml_nvalues;
1342                                 if ( vals != NULL ) {
1343                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1344                                                 memberof_value_modify( op, rs,
1345                                                                 &vals[ i ], mo->mo_ad_memberof,
1346                                                                 &op->o_req_dn, &op->o_req_ndn,
1347                                                                 NULL, NULL );
1348                                         }
1349                                         break;
1350                                 }
1351                                 /* fall thru */
1352
1353                         case LDAP_MOD_REPLACE:
1354                                 vals = memberof_saved_member_get( op, &saved_member_vals );
1355
1356                                 /* delete all ... */
1357                                 if ( vals != NULL ) {
1358                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1359                                                 (void)memberof_value_modify( op, rs,
1360                                                                 &vals[ i ], mo->mo_ad_memberof,
1361                                                                 &op->o_req_dn, &op->o_req_ndn,
1362                                                                 NULL, NULL );
1363                                         }
1364                                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1365                                 }
1366
1367                                 if ( ml->sml_op == LDAP_MOD_DELETE ) {
1368                                         break;
1369                                 }
1370                                 /* fall thru */
1371
1372                         case LDAP_MOD_ADD:
1373                                 assert( ml->sml_nvalues != NULL );
1374                                 vals = ml->sml_nvalues;
1375                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1376                                         memberof_value_modify( op, rs,
1377                                                         &vals[ i ], mo->mo_ad_memberof,
1378                                                         NULL, NULL,
1379                                                         &op->o_req_dn, &op->o_req_ndn );
1380                                 }
1381                                 break;
1382
1383                         default:
1384                                 assert( 0 );
1385                         }
1386                 }
1387         }
1388
1389         return SLAP_CB_CONTINUE;
1390 }
1391
1392 /*
1393  * response callback that adds/deletes member values when a group member
1394  * is modified.
1395  */
1396 static int
1397 memberof_res_rename( Operation *op, SlapReply *rs )
1398 {
1399         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1400         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1401
1402         struct berval   newPDN, newDN = BER_BVNULL, newPNDN, newNDN;
1403         int             i, rc;
1404         BerVarray       vals;
1405
1406         struct berval   save_dn, save_ndn;
1407         memberof_is_t   iswhat = MEMBEROF_IS_GROUP;
1408
1409         if ( MEMBEROF_REFINT( mo ) ) {
1410                 iswhat |= MEMBEROF_IS_MEMBER;
1411         }
1412
1413         if ( op->orr_nnewSup ) {
1414                 newPNDN = *op->orr_nnewSup;
1415
1416         } else {
1417                 dnParent( &op->o_req_ndn, &newPNDN );
1418         }
1419
1420         build_new_dn( &newNDN, &newPNDN, &op->orr_nnewrdn, op->o_tmpmemctx );
1421
1422         save_dn = op->o_req_dn;
1423         save_ndn = op->o_req_ndn;
1424
1425         op->o_req_dn = newNDN;
1426         op->o_req_ndn = newNDN;
1427         rc = memberof_isGroupOrMember( op, &iswhat );
1428         op->o_req_dn = save_dn;
1429         op->o_req_ndn = save_ndn;
1430
1431         if ( rc != LDAP_SUCCESS || iswhat == MEMBEROF_IS_NONE ) {
1432                 goto done;
1433         }
1434
1435         if ( op->orr_newSup ) {
1436                 newPDN = *op->orr_newSup;
1437
1438         } else {
1439                 dnParent( &op->o_req_dn, &newPDN );
1440         }
1441
1442         build_new_dn( &newDN, &newPDN, &op->orr_newrdn, op->o_tmpmemctx );
1443
1444         if ( iswhat & MEMBEROF_IS_GROUP ) {
1445                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1446                 rc = backend_attribute( op, NULL, &newNDN,
1447                                 mo->mo_ad_member, &vals, ACL_READ );
1448                 op->o_bd->bd_info = (BackendInfo *)on;
1449
1450                 if ( rc == LDAP_SUCCESS ) {
1451                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1452                                 (void)memberof_value_modify( op, rs,
1453                                                 &vals[ i ], mo->mo_ad_memberof,
1454                                                 &op->o_req_dn, &op->o_req_ndn,
1455                                                 &newDN, &newNDN );
1456                         }
1457                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1458                 }
1459         }
1460
1461         if ( MEMBEROF_REFINT( mo ) && ( iswhat & MEMBEROF_IS_MEMBER ) ) {
1462                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1463                 rc = backend_attribute( op, NULL, &newNDN,
1464                                 mo->mo_ad_memberof, &vals, ACL_READ );
1465                 op->o_bd->bd_info = (BackendInfo *)on;
1466
1467                 if ( rc == LDAP_SUCCESS ) {
1468                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1469                                 (void)memberof_value_modify( op, rs,
1470                                                 &vals[ i ], mo->mo_ad_member,
1471                                                 &op->o_req_dn, &op->o_req_ndn,
1472                                                 &newDN, &newNDN );
1473                         }
1474                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1475                 }
1476         }
1477
1478 done:;
1479         if ( !BER_BVISNULL( &newDN ) ) {
1480                 op->o_tmpfree( newDN.bv_val, op->o_tmpmemctx );
1481         }
1482         op->o_tmpfree( newNDN.bv_val, op->o_tmpmemctx );
1483
1484         return SLAP_CB_CONTINUE;
1485 }
1486
1487 static int
1488 memberof_response( Operation *op, SlapReply *rs )
1489 {
1490         if ( rs->sr_err != LDAP_SUCCESS ) {
1491                 return SLAP_CB_CONTINUE;
1492         }
1493
1494         switch ( op->o_tag ) {
1495         case LDAP_REQ_ADD:
1496                 return memberof_res_add( op, rs );
1497
1498         case LDAP_REQ_DELETE:
1499                 return memberof_res_delete( op, rs );
1500
1501         case LDAP_REQ_MODIFY:
1502                 return memberof_res_modify( op, rs );
1503
1504         case LDAP_REQ_MODDN:
1505                 return memberof_res_rename( op, rs );
1506
1507         default:
1508                 return SLAP_CB_CONTINUE;
1509         }
1510 }
1511
1512 static int
1513 memberof_db_init(
1514         BackendDB       *be,
1515         ConfigReply     *cr )
1516 {
1517         slap_overinst   *on = (slap_overinst *)be->bd_info;
1518         memberof_t      tmp_mo = { 0 }, *mo;
1519
1520         mo = (memberof_t *)ch_calloc( 1, sizeof( memberof_t ) );
1521
1522         /* safe default */
1523         mo->mo_dangling_err = LDAP_CONSTRAINT_VIOLATION;
1524
1525         on->on_bi.bi_private = (void *)mo;
1526
1527         return 0;
1528 }
1529
1530 enum {
1531         MO_DN = 1,
1532         MO_DANGLING,
1533         MO_REFINT,
1534         MO_GROUP_OC,
1535         MO_MEMBER_AD,
1536         MO_MEMBER_OF_AD,
1537 #if 0
1538         MO_REVERSE,
1539 #endif
1540
1541         MO_DANGLING_ERROR,
1542
1543         MO_LAST
1544 };
1545
1546 static ConfigDriver mo_cf_gen;
1547
1548 #define OID             "1.3.6.1.4.1.7136.2.666.4"
1549 #define OIDAT           OID ".1.1"
1550 #define OIDCFGAT        OID ".1.2"
1551 #define OIDOC           OID ".2.1"
1552 #define OIDCFGOC        OID ".2.2"
1553
1554
1555 static ConfigTable mo_cfg[] = {
1556         { "memberof-dn", "modifiersName",
1557                 2, 2, 0, ARG_MAGIC|ARG_DN|MO_DN, mo_cf_gen,
1558                 "( OLcfgOvAt:18.0 NAME 'olcMemberOfDN' "
1559                         "DESC 'DN to be used as modifiersName' "
1560                         "SYNTAX OMsDN SINGLE-VALUE )",
1561                 NULL, NULL },
1562
1563         { "memberof-dangling", "ignore|drop|error",
1564                 2, 2, 0, ARG_MAGIC|MO_DANGLING, mo_cf_gen,
1565                 "( OLcfgOvAt:18.1 NAME 'olcMemberOfDangling' "
1566                         "DESC 'Behavior with respect to dangling members, "
1567                                 "constrained to ignore, drop, error' "
1568                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1569                 NULL, NULL },
1570
1571         { "memberof-refint", "true|FALSE",
1572                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REFINT, mo_cf_gen,
1573                 "( OLcfgOvAt:18.2 NAME 'olcMemberOfRefInt' "
1574                         "DESC 'Take care of referential integrity' "
1575                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1576                 NULL, NULL },
1577
1578         { "memberof-group-oc", "objectClass",
1579                 2, 2, 0, ARG_MAGIC|MO_GROUP_OC, mo_cf_gen,
1580                 "( OLcfgOvAt:18.3 NAME 'olcMemberOfGroupOC' "
1581                         "DESC 'Group objectClass' "
1582                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1583                 NULL, NULL },
1584
1585         { "memberof-member-ad", "member attribute",
1586                 2, 2, 0, ARG_MAGIC|MO_MEMBER_AD, mo_cf_gen,
1587                 "( OLcfgOvAt:18.4 NAME 'olcMemberOfMemberAD' "
1588                         "DESC 'member attribute' "
1589                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1590                 NULL, NULL },
1591
1592         { "memberof-memberof-ad", "memberOf attribute",
1593                 2, 2, 0, ARG_MAGIC|MO_MEMBER_OF_AD, mo_cf_gen,
1594                 "( OLcfgOvAt:18.5 NAME 'olcMemberOfMemberOfAD' "
1595                         "DESC 'memberOf attribute' "
1596                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1597                 NULL, NULL },
1598
1599 #if 0
1600         { "memberof-reverse", "true|FALSE",
1601                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REVERSE, mo_cf_gen,
1602                 "( OLcfgOvAt:18.6 NAME 'olcMemberOfReverse' "
1603                         "DESC 'Take care of referential integrity "
1604                                 "also when directly modifying memberOf' "
1605                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1606                 NULL, NULL },
1607 #endif
1608
1609         { "memberof-dangling-error", "error code",
1610                 2, 2, 0, ARG_MAGIC|MO_DANGLING_ERROR, mo_cf_gen,
1611                 "( OLcfgOvAt:18.7 NAME 'olcMemberOfDanglingError' "
1612                         "DESC 'Error code returned in case of dangling back reference' "
1613                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1614                 NULL, NULL },
1615
1616         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1617 };
1618
1619 static ConfigOCs mo_ocs[] = {
1620         { "( OLcfgOvOc:18.1 "
1621                 "NAME 'olcMemberOf' "
1622                 "DESC 'Member-of configuration' "
1623                 "SUP olcOverlayConfig "
1624                 "MAY ( "
1625                         "olcMemberOfDN "
1626                         "$ olcMemberOfDangling "
1627                         "$ olcMemberOfDanglingError"
1628                         "$ olcMemberOfRefInt "
1629                         "$ olcMemberOfGroupOC "
1630                         "$ olcMemberOfMemberAD "
1631                         "$ olcMemberOfMemberOfAD "
1632 #if 0
1633                         "$ olcMemberOfReverse "
1634 #endif
1635                         ") "
1636                 ")",
1637                 Cft_Overlay, mo_cfg, NULL, NULL },
1638         { NULL, 0, NULL }
1639 };
1640
1641 static slap_verbmasks dangling_mode[] = {
1642         { BER_BVC( "ignore" ),          MEMBEROF_NONE },
1643         { BER_BVC( "drop" ),            MEMBEROF_FDANGLING_DROP },
1644         { BER_BVC( "error" ),           MEMBEROF_FDANGLING_ERROR },
1645         { BER_BVNULL,                   0 }
1646 };
1647
1648 static int
1649 memberof_make_group_filter( memberof_t *mo )
1650 {
1651         char            *ptr;
1652
1653         if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1654                 ch_free( mo->mo_groupFilterstr.bv_val );
1655         }
1656
1657         mo->mo_groupFilter.f_choice = LDAP_FILTER_EQUALITY;
1658         mo->mo_groupFilter.f_ava = &mo->mo_groupAVA;
1659
1660         mo->mo_groupFilter.f_av_desc = slap_schema.si_ad_objectClass;
1661         mo->mo_groupFilter.f_av_value = mo->mo_oc_group->soc_cname;
1662
1663         mo->mo_groupFilterstr.bv_len = STRLENOF( "(=)" )
1664                 + slap_schema.si_ad_objectClass->ad_cname.bv_len
1665                 + mo->mo_oc_group->soc_cname.bv_len;
1666         ptr = mo->mo_groupFilterstr.bv_val = ch_malloc( mo->mo_groupFilterstr.bv_len + 1 );
1667         *ptr++ = '(';
1668         ptr = lutil_strcopy( ptr, slap_schema.si_ad_objectClass->ad_cname.bv_val );
1669         *ptr++ = '=';
1670         ptr = lutil_strcopy( ptr, mo->mo_oc_group->soc_cname.bv_val );
1671         *ptr++ = ')';
1672         *ptr = '\0';
1673
1674         return 0;
1675 }
1676
1677 static int
1678 memberof_make_member_filter( memberof_t *mo )
1679 {
1680         char            *ptr;
1681
1682         if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1683                 ch_free( mo->mo_memberFilterstr.bv_val );
1684         }
1685
1686         mo->mo_memberFilter.f_choice = LDAP_FILTER_PRESENT;
1687         mo->mo_memberFilter.f_desc = mo->mo_ad_memberof;
1688
1689         mo->mo_memberFilterstr.bv_len = STRLENOF( "(=*)" )
1690                 + mo->mo_ad_memberof->ad_cname.bv_len;
1691         ptr = mo->mo_memberFilterstr.bv_val = ch_malloc( mo->mo_memberFilterstr.bv_len + 1 );
1692         *ptr++ = '(';
1693         ptr = lutil_strcopy( ptr, mo->mo_ad_memberof->ad_cname.bv_val );
1694         ptr = lutil_strcopy( ptr, "=*)" );
1695
1696         return 0;
1697 }
1698
1699 static int
1700 mo_cf_gen( ConfigArgs *c )
1701 {
1702         slap_overinst   *on = (slap_overinst *)c->bi;
1703         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1704
1705         int             i, rc = 0;
1706
1707         if ( c->op == SLAP_CONFIG_EMIT ) {
1708                 struct berval bv = BER_BVNULL;
1709
1710                 switch( c->type ) {
1711                 case MO_DN:
1712                         if ( mo->mo_dn.bv_val != NULL) {
1713                                 value_add_one( &c->rvalue_vals, &mo->mo_dn );
1714                                 value_add_one( &c->rvalue_nvals, &mo->mo_ndn );
1715                         }
1716                         break;
1717
1718                 case MO_DANGLING:
1719                         enum_to_verb( dangling_mode, (mo->mo_flags & MEMBEROF_FDANGLING_MASK), &bv );
1720                         if ( BER_BVISNULL( &bv ) ) {
1721                                 /* there's something wrong... */
1722                                 assert( 0 );
1723                                 rc = 1;
1724
1725                         } else {
1726                                 value_add_one( &c->rvalue_vals, &bv );
1727                         }
1728                         break;
1729
1730                 case MO_DANGLING_ERROR:
1731                         if ( mo->mo_flags & MEMBEROF_FDANGLING_ERROR ) {
1732                                 char buf[ SLAP_TEXT_BUFLEN ];
1733                                 enum_to_verb( slap_ldap_response_code, mo->mo_dangling_err, &bv );
1734                                 if ( BER_BVISNULL( &bv ) ) {
1735                                         bv.bv_len = snprintf( buf, sizeof( buf ), "0x%x", mo->mo_dangling_err );
1736                                         if ( bv.bv_len < sizeof( buf ) ) {
1737                                                 bv.bv_val = buf;
1738                                         } else {
1739                                                 rc = 1;
1740                                                 break;
1741                                         }
1742                                 }
1743                                 value_add_one( &c->rvalue_vals, &bv );
1744                         } else {
1745                                 rc = 1;
1746                         }
1747                         break;
1748
1749                 case MO_REFINT:
1750                         c->value_int = MEMBEROF_REFINT( mo );
1751                         break;
1752
1753 #if 0
1754                 case MO_REVERSE:
1755                         c->value_int = MEMBEROF_REVERSE( mo );
1756                         break;
1757 #endif
1758
1759                 case MO_GROUP_OC:
1760                         if ( mo->mo_oc_group != NULL ){
1761                                 value_add_one( &c->rvalue_vals, &mo->mo_oc_group->soc_cname );
1762                         }
1763                         break;
1764
1765                 case MO_MEMBER_AD:
1766                         if ( mo->mo_ad_member != NULL ){
1767                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_member->ad_cname );
1768                         }
1769                         break;
1770
1771                 case MO_MEMBER_OF_AD:
1772                         if ( mo->mo_ad_memberof != NULL ){
1773                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_memberof->ad_cname );
1774                         }
1775                         break;
1776
1777                 default:
1778                         assert( 0 );
1779                         return 1;
1780                 }
1781
1782                 return rc;
1783
1784         } else if ( c->op == LDAP_MOD_DELETE ) {
1785                 return 1;       /* FIXME */
1786
1787         } else {
1788                 switch( c->type ) {
1789                 case MO_DN:
1790                         if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1791                                 ber_memfree( mo->mo_dn.bv_val );
1792                                 ber_memfree( mo->mo_ndn.bv_val );
1793                         }
1794                         mo->mo_dn = c->value_dn;
1795                         mo->mo_ndn = c->value_ndn;
1796                         break;
1797
1798                 case MO_DANGLING:
1799                         i = verb_to_mask( c->argv[ 1 ], dangling_mode );
1800                         if ( BER_BVISNULL( &dangling_mode[ i ].word ) ) {
1801                                 return 1;
1802                         }
1803
1804                         mo->mo_flags &= ~MEMBEROF_FDANGLING_MASK;
1805                         mo->mo_flags |= dangling_mode[ i ].mask;
1806                         break;
1807
1808                 case MO_DANGLING_ERROR:
1809                         i = verb_to_mask( c->argv[ 1 ], slap_ldap_response_code );
1810                         if ( !BER_BVISNULL( &slap_ldap_response_code[ i ].word ) ) {
1811                                 mo->mo_dangling_err = slap_ldap_response_code[ i ].mask;
1812                         } else if ( lutil_atoix( &mo->mo_dangling_err, c->argv[ 1 ], 0 ) ) {
1813                                 return 1;
1814                         }
1815                         break;
1816
1817                 case MO_REFINT:
1818                         if ( c->value_int ) {
1819                                 mo->mo_flags |= MEMBEROF_FREFINT;
1820
1821                         } else {
1822                                 mo->mo_flags &= ~MEMBEROF_FREFINT;
1823                         }
1824                         break;
1825
1826 #if 0
1827                 case MO_REVERSE:
1828                         if ( c->value_int ) {
1829                                 mo->mo_flags |= MEMBEROF_FREVERSE;
1830
1831                         } else {
1832                                 mo->mo_flags &= ~MEMBEROF_FREVERSE;
1833                         }
1834                         break;
1835 #endif
1836
1837                 case MO_GROUP_OC: {
1838                         ObjectClass     *oc = NULL;
1839
1840                         oc = oc_find( c->argv[ 1 ] );
1841                         if ( oc == NULL ) {
1842                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1843                                         "unable to find group objectClass=\"%s\"",
1844                                         c->argv[ 1 ] );
1845                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1846                                         c->log, c->cr_msg, 0 );
1847                                 return 1;
1848                         }
1849
1850                         mo->mo_oc_group = oc;
1851                         memberof_make_group_filter( mo );
1852                         } break;
1853
1854                 case MO_MEMBER_AD: {
1855                         AttributeDescription    *ad = NULL;
1856                         const char              *text = NULL;
1857
1858
1859                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1860                         if ( rc != LDAP_SUCCESS ) {
1861                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1862                                         "unable to find member attribute=\"%s\": %s (%d)",
1863                                         c->argv[ 1 ], text, rc );
1864                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1865                                         c->log, c->cr_msg, 0 );
1866                                 return 1;
1867                         }
1868
1869                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1870                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1871                         {
1872                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1873                                         "member attribute=\"%s\" must either "
1874                                         "have DN (%s) or nameUID (%s) syntax",
1875                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1876                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1877                                         c->log, c->cr_msg, 0 );
1878                                 return 1;
1879                         }
1880
1881                         mo->mo_ad_member = ad;
1882                         } break;
1883
1884                 case MO_MEMBER_OF_AD: {
1885                         AttributeDescription    *ad = NULL;
1886                         const char              *text = NULL;
1887
1888
1889                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1890                         if ( rc != LDAP_SUCCESS ) {
1891                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1892                                         "unable to find memberof attribute=\"%s\": %s (%d)",
1893                                         c->argv[ 1 ], text, rc );
1894                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1895                                         c->log, c->cr_msg, 0 );
1896                                 return 1;
1897                         }
1898
1899                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1900                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1901                         {
1902                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1903                                         "memberof attribute=\"%s\" must either "
1904                                         "have DN (%s) or nameUID (%s) syntax",
1905                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1906                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1907                                         c->log, c->cr_msg, 0 );
1908                                 return 1;
1909                         }
1910
1911                         mo->mo_ad_memberof = ad;
1912                         memberof_make_member_filter( mo );
1913                         } break;
1914
1915                 default:
1916                         assert( 0 );
1917                         return 1;
1918                 }
1919         }
1920
1921         return 0;
1922 }
1923
1924 static int
1925 memberof_db_open(
1926         BackendDB       *be,
1927         ConfigReply     *cr )
1928 {
1929         slap_overinst   *on = (slap_overinst *)be->bd_info;
1930         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1931
1932         int             rc;
1933         const char      *text = NULL;
1934
1935         if( ! mo->mo_ad_memberof ){
1936                 rc = slap_str2ad( SLAPD_MEMBEROF_ATTR, &mo->mo_ad_memberof, &text );
1937                 if ( rc != LDAP_SUCCESS ) {
1938                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
1939                                         "unable to find attribute=\"%s\": %s (%d)\n",
1940                                         SLAPD_MEMBEROF_ATTR, text, rc );
1941                         return rc;
1942                 }
1943         }
1944
1945         if( ! mo->mo_ad_member ){
1946                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &mo->mo_ad_member, &text );
1947                 if ( rc != LDAP_SUCCESS ) {
1948                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
1949                                         "unable to find attribute=\"%s\": %s (%d)\n",
1950                                         SLAPD_GROUP_ATTR, text, rc );
1951                         return rc;
1952                 }
1953         }
1954
1955         if( ! mo->mo_oc_group ){
1956                 mo->mo_oc_group = oc_find( SLAPD_GROUP_CLASS );
1957                 if ( mo->mo_oc_group == NULL ) {
1958                         Debug( LDAP_DEBUG_ANY,
1959                                         "memberof_db_open: "
1960                                         "unable to find objectClass=\"%s\"\n",
1961                                         SLAPD_GROUP_CLASS, 0, 0 );
1962                         return 1;
1963                 }
1964         }
1965
1966         if ( BER_BVISNULL( &mo->mo_dn ) && !BER_BVISNULL( &be->be_rootdn ) ) {
1967                 ber_dupbv( &mo->mo_dn, &be->be_rootdn );
1968                 ber_dupbv( &mo->mo_ndn, &be->be_rootndn );
1969         }
1970
1971         if ( BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1972                 memberof_make_group_filter( mo );
1973         }
1974
1975         if ( BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1976                 memberof_make_member_filter( mo );
1977         }
1978
1979         return 0;
1980 }
1981
1982 static int
1983 memberof_db_destroy(
1984         BackendDB       *be,
1985         ConfigReply     *cr )
1986 {
1987         slap_overinst   *on = (slap_overinst *)be->bd_info;
1988         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1989
1990         if ( mo ) {
1991                 if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1992                         ber_memfree( mo->mo_dn.bv_val );
1993                         ber_memfree( mo->mo_ndn.bv_val );
1994                 }
1995
1996                 if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1997                         ber_memfree( mo->mo_groupFilterstr.bv_val );
1998                 }
1999
2000                 if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
2001                         ber_memfree( mo->mo_memberFilterstr.bv_val );
2002                 }
2003
2004                 ber_memfree( mo );
2005         }
2006
2007         return 0;
2008 }
2009
2010 /* unused */
2011 static AttributeDescription     *ad_memberOf;
2012
2013 static struct {
2014         char    *desc;
2015         AttributeDescription **adp;
2016 } as[] = {
2017         { "( 1.2.840.113556.1.2.102 "
2018                 "NAME 'memberOf' "
2019                 "DESC 'Group that the entry belongs to' "
2020                 "SYNTAX '1.3.6.1.4.1.1466.115.121.1.12' "
2021                 "EQUALITY distinguishedNameMatch "      /* added */
2022                 "USAGE dSAOperation "                   /* added; questioned */
2023                 /* "NO-USER-MODIFICATION " */           /* add? */
2024                 "X-ORIGIN 'iPlanet Delegated Administrator' )",
2025                 &ad_memberOf },
2026         { NULL }
2027 };
2028
2029 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2030 static
2031 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2032 int
2033 memberof_initialize( void )
2034 {
2035         int                     code, i;
2036
2037         for ( i = 0; as[ i ].desc != NULL; i++ ) {
2038                 code = register_at( as[ i ].desc, as[ i ].adp, 0 );
2039                 if ( code ) {
2040                         Debug( LDAP_DEBUG_ANY,
2041                                 "memberof_initialize: register_at #%d failed\n",
2042                                 i, 0, 0 );
2043                         return code;
2044                 }
2045         }
2046
2047         memberof.on_bi.bi_type = "memberof";
2048
2049         memberof.on_bi.bi_db_init = memberof_db_init;
2050         memberof.on_bi.bi_db_open = memberof_db_open;
2051         memberof.on_bi.bi_db_destroy = memberof_db_destroy;
2052
2053         memberof.on_bi.bi_op_add = memberof_op_add;
2054         memberof.on_bi.bi_op_delete = memberof_op_delete;
2055         memberof.on_bi.bi_op_modify = memberof_op_modify;
2056
2057         memberof.on_response = memberof_response;
2058
2059         memberof.on_bi.bi_cf_ocs = mo_ocs;
2060
2061         code = config_register_schema( mo_cfg, mo_ocs );
2062         if ( code ) return code;
2063
2064         return overlay_register( &memberof );
2065 }
2066
2067 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2068 int
2069 init_module( int argc, char *argv[] )
2070 {
2071         return memberof_initialize();
2072 }
2073 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2074
2075 #endif /* SLAPD_OVER_MEMBEROF */