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 typedef struct memberof_cookie_t {
 182         AttributeDescription    *ad;
 183         BerVarray               vals;
 184         int                     foundit;
 185 } memberof_cookie_t;
 186
 187 typedef struct memberof_cbinfo_t {
 188         slap_overinst *on;
 189         BerVarray member;
 190         BerVarray memberof;
 191         memberof_is_t what;
 192 } memberof_cbinfo_t;
 193
 194 static int
 195 memberof_isGroupOrMember_cb( Operation *op, SlapReply *rs )
 196 {
 197         if ( rs->sr_type == REP_SEARCH ) {
 198                 memberof_cookie_t       *mc;
 199
 200                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 201                 mc->foundit = 1;
 202         }
 203
 204         return 0;
 205 }
 206
 207 /*
 208  * callback for internal search that saves the member attribute values
 209  * of groups being deleted.
 210  */
 211 static int
 212 memberof_saveMember_cb( Operation *op, SlapReply *rs )
 213 {
 214         if ( rs->sr_type == REP_SEARCH ) {
 215                 memberof_cookie_t       *mc;
 216                 Attribute               *a;
 217
 218                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 219                 mc->foundit = 1;
 220
 221                 assert( rs->sr_entry != NULL );
 222                 assert( rs->sr_entry->e_attrs != NULL );
 223
 224                 a = attr_find( rs->sr_entry->e_attrs, mc->ad );
 225                 if ( a != NULL ) {
 226                         ber_bvarray_dup_x( &mc->vals, a->a_nvals, op->o_tmpmemctx );
 227
 228                         assert( attr_find( a->a_next, mc->ad ) == NULL );
 229                 }
 230         }
 231
 232         return 0;
 233 }
 234
 235 /*
 236  * the delete hook performs an internal search that saves the member
 237  * attribute values of groups being deleted.
 238  */
 239 static int
 240 memberof_isGroupOrMember( Operation *op, memberof_cbinfo_t *mci )
 241 {
 242         slap_overinst           *on = mci->on;
 243         memberof_t              *mo = (memberof_t *)on->on_bi.bi_private;
 244
 245         Operation               op2 = *op;
 246         slap_callback           cb = { 0 };
 247         BackendInfo     *bi = op->o_bd->bd_info;
 248         AttributeName           an[ 2 ];
 249
 250         memberof_is_t           iswhat = MEMBEROF_IS_NONE;
 251         memberof_cookie_t       mc;
 252
 253         assert( mci->what != MEMBEROF_IS_NONE );
 254
 255         cb.sc_private = &mc;
 256         if ( op->o_tag == LDAP_REQ_DELETE ) {
 257                 cb.sc_response = memberof_saveMember_cb;
 258
 259         } else {
 260                 cb.sc_response = memberof_isGroupOrMember_cb;
 261         }
 262
 263         op2.o_tag = LDAP_REQ_SEARCH;
 264         op2.o_callback = &cb;
 265         op2.o_dn = op->o_bd->be_rootdn;
 266         op2.o_ndn = op->o_bd->be_rootndn;
 267
 268         op2.ors_scope = LDAP_SCOPE_BASE;
 269         op2.ors_deref = LDAP_DEREF_NEVER;
 270         BER_BVZERO( &an[ 1 ].an_name );
 271         op2.ors_attrs = an;
 272         op2.ors_attrsonly = 0;
 273         op2.ors_limit = NULL;
 274         op2.ors_slimit = 1;
 275         op2.ors_tlimit = SLAP_NO_LIMIT;
 276
 277         if ( mci->what & MEMBEROF_IS_GROUP ) {
 278                 SlapReply       rs2 = { REP_RESULT };
 279
 280                 mc.ad = mo->mo_ad_member;
 281                 mc.foundit = 0;
 282                 mc.vals = NULL;
 283                 an[ 0 ].an_desc = mo->mo_ad_member;
 284                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 285                 op2.ors_filterstr = mo->mo_groupFilterstr;
 286                 op2.ors_filter = &mo->mo_groupFilter;
 287
 288                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 289                 (void)op->o_bd->be_search( &op2, &rs2 );
 290                 op2.o_bd->bd_info = bi;
 291
 292                 if ( mc.foundit ) {
 293                         iswhat |= MEMBEROF_IS_GROUP;
 294                         if ( mc.vals ) mci->member = mc.vals;
 295
 296                 }
 297         }
 298
 299         if ( mci->what & MEMBEROF_IS_MEMBER ) {
 300                 SlapReply       rs2 = { REP_RESULT };
 301
 302                 mc.ad = mo->mo_ad_memberof;
 303                 mc.foundit = 0;
 304                 mc.vals = NULL;
 305                 an[ 0 ].an_desc = mo->mo_ad_memberof;
 306                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 307                 op2.ors_filterstr = mo->mo_memberFilterstr;
 308                 op2.ors_filter = &mo->mo_memberFilter;
 309
 310                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 311                 (void)op->o_bd->be_search( &op2, &rs2 );
 312                 op2.o_bd->bd_info = bi;
 313
 314                 if ( mc.foundit ) {
 315                         iswhat |= MEMBEROF_IS_MEMBER;
 316                         if ( mc.vals ) mci->memberof = mc.vals;
 317
 318                 }
 319         }
 320
 321         mci->what = iswhat;
 322
 323         return LDAP_SUCCESS;
 324 }
 325
 326 /*
 327  * response callback that adds memberof values when a group is modified.
 328  */
 329 static void
 330 memberof_value_modify(
 331         Operation               *op,
 332         struct berval           *ndn,
 333         AttributeDescription    *ad,
 334         struct berval           *old_dn,
 335         struct berval           *old_ndn,
 336         struct berval           *new_dn,
 337         struct berval           *new_ndn )
 338 {
 339         memberof_cbinfo_t *mci = op->o_callback->sc_private;
 340         slap_overinst   *on = mci->on;
 341         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 342
 343         Operation       op2 = *op;
 344         SlapReply       rs2 = { REP_RESULT };
 345         slap_callback   cb = { NULL, slap_null_cb, NULL, NULL };
 346         Modifications   mod[ 2 ] = { { { 0 } } }, *ml;
 347         struct berval   values[ 4 ], nvalues[ 4 ];
 348         int             mcnt = 0;
 349
 350         op2.o_tag = LDAP_REQ_MODIFY;
 351
 352         op2.o_req_dn = *ndn;
 353         op2.o_req_ndn = *ndn;
 354
 355         op2.o_callback = &cb;
 356         op2.o_dn = op->o_bd->be_rootdn;
 357         op2.o_ndn = op->o_bd->be_rootndn;
 358         op2.orm_modlist = NULL;
 359
 360         if ( !BER_BVISNULL( &mo->mo_ndn ) ) {
 361                 ml = &mod[ mcnt ];
 362                 ml->sml_numvals = 1;
 363                 ml->sml_values = &values[ 0 ];
 364                 ml->sml_values[ 0 ] = mo->mo_dn;
 365                 BER_BVZERO( &ml->sml_values[ 1 ] );
 366                 ml->sml_nvalues = &nvalues[ 0 ];
 367                 ml->sml_nvalues[ 0 ] = mo->mo_ndn;
 368                 BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 369                 ml->sml_desc = slap_schema.si_ad_modifiersName;
 370                 ml->sml_type = ml->sml_desc->ad_cname;
 371                 ml->sml_op = LDAP_MOD_REPLACE;
 372                 ml->sml_flags = SLAP_MOD_INTERNAL;
 373                 ml->sml_next = op2.orm_modlist;
 374                 op2.orm_modlist = ml;
 375
 376                 mcnt++;
 377         }
 378
 379         ml = &mod[ mcnt ];
 380         ml->sml_numvals = 1;
 381         ml->sml_values = &values[ 2 ];
 382         BER_BVZERO( &ml->sml_values[ 1 ] );
 383         ml->sml_nvalues = &nvalues[ 2 ];
 384         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 385         ml->sml_desc = ad;
 386         ml->sml_type = ml->sml_desc->ad_cname;
 387         ml->sml_flags = SLAP_MOD_INTERNAL;
 388         ml->sml_next = op2.orm_modlist;
 389         op2.orm_modlist = ml;
 390
 391         if ( new_ndn != NULL ) {
 392                 BackendInfo *bi = op2.o_bd->bd_info;
 393                 OpExtra oex;
 394
 395                 assert( !BER_BVISNULL( new_dn ) );
 396                 assert( !BER_BVISNULL( new_ndn ) );
 397
 398                 ml = &mod[ mcnt ];
 399                 ml->sml_op = LDAP_MOD_ADD;
 400
 401                 ml->sml_values[ 0 ] = *new_dn;
 402                 ml->sml_nvalues[ 0 ] = *new_ndn;
 403
 404                 oex.oe_key = (void *)&memberof;
 405                 LDAP_SLIST_INSERT_HEAD(&op2.o_extra, &oex, oe_next);
 406                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 407                 (void)op->o_bd->be_modify( &op2, &rs2 );
 408                 op2.o_bd->bd_info = bi;
 409                 LDAP_SLIST_REMOVE(&op2.o_extra, &oex, OpExtra, oe_next);
 410                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 411                         char buf[ SLAP_TEXT_BUFLEN ];
 412                         snprintf( buf, sizeof( buf ),
 413                                 "memberof_value_modify DN=\"%s\" add %s=\"%s\" failed err=%d",
 414                                 op2.o_req_dn.bv_val, ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err );
 415                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 416                                 op->o_log_prefix, buf, 0 );
 417                 }
 418
 419                 assert( op2.orm_modlist == &mod[ mcnt ] );
 420                 assert( mcnt == 0 || op2.orm_modlist->sml_next == &mod[ 0 ] );
 421                 ml = op2.orm_modlist->sml_next;
 422                 if ( mcnt == 1 ) {
 423                         assert( ml == &mod[ 0 ] );
 424                         ml = ml->sml_next;
 425                 }
 426                 if ( ml != NULL ) {
 427                         slap_mods_free( ml, 1 );
 428                 }
 429
 430                 mod[ 0 ].sml_next = NULL;
 431         }
 432
 433         if ( old_ndn != NULL ) {
 434                 BackendInfo *bi = op2.o_bd->bd_info;
 435                 OpExtra oex;
 436
 437                 assert( !BER_BVISNULL( old_dn ) );
 438                 assert( !BER_BVISNULL( old_ndn ) );
 439
 440                 ml = &mod[ mcnt ];
 441                 ml->sml_op = LDAP_MOD_DELETE;
 442
 443                 ml->sml_values[ 0 ] = *old_dn;
 444                 ml->sml_nvalues[ 0 ] = *old_ndn;
 445
 446                 oex.oe_key = (void *)&memberof;
 447                 LDAP_SLIST_INSERT_HEAD(&op2.o_extra, &oex, oe_next);
 448                 op2.o_bd->bd_info = (BackendInfo *)on->on_info;
 449                 (void)op->o_bd->be_modify( &op2, &rs2 );
 450                 op2.o_bd->bd_info = bi;
 451                 LDAP_SLIST_REMOVE(&op2.o_extra, &oex, OpExtra, oe_next);
 452                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 453                         char buf[ SLAP_TEXT_BUFLEN ];
 454                         snprintf( buf, sizeof( buf ),
 455                                 "memberof_value_modify DN=\"%s\" delete %s=\"%s\" failed err=%d",
 456                                 op2.o_req_dn.bv_val, ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err );
 457                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 458                                 op->o_log_prefix, buf, 0 );
 459                 }
 460
 461                 assert( op2.orm_modlist == &mod[ mcnt ] );
 462                 ml = op2.orm_modlist->sml_next;
 463                 if ( mcnt == 1 ) {
 464                         assert( ml == &mod[ 0 ] );
 465                         ml = ml->sml_next;
 466                 }
 467                 if ( ml != NULL ) {
 468                         slap_mods_free( ml, 1 );
 469                 }
 470         }
 471
 472         /* FIXME: if old_group_ndn doesn't exist, both delete __and__
 473          * add will fail; better split in two operations, although
 474          * not optimal in terms of performance.  At least it would
 475          * move towards self-repairing capabilities. */
 476 }
 477
 478 static int
 479 memberof_cleanup( Operation *op, SlapReply *rs )
 480 {
 481         slap_callback *sc = op->o_callback;
 482         memberof_cbinfo_t *mci = sc->sc_private;
 483
 484         op->o_callback = sc->sc_next;
 485         if ( mci->memberof )
 486                 ber_bvarray_free_x( mci->memberof, op->o_tmpmemctx );
 487         if ( mci->member )
 488                 ber_bvarray_free_x( mci->member, op->o_tmpmemctx );
 489         op->o_tmpfree( sc, op->o_tmpmemctx );
 490         return 0;
 491 }
 492
 493 static int memberof_res_add( Operation *op, SlapReply *rs );
 494 static int memberof_res_delete( Operation *op, SlapReply *rs );
 495 static int memberof_res_modify( Operation *op, SlapReply *rs );
 496 static int memberof_res_modrdn( Operation *op, SlapReply *rs );
 497
 498 static int
 499 memberof_op_add( Operation *op, SlapReply *rs )
 500 {
 501         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 502         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 503
 504         Attribute       **ap, **map = NULL;
 505         int             rc = SLAP_CB_CONTINUE;
 506         int             i;
 507         struct berval   save_dn, save_ndn;
 508         slap_callback *sc;
 509         memberof_cbinfo_t *mci;
 510         OpExtra         *oex;
 511
 512         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 513                 if ( oex->oe_key == (void *)&memberof )
 514                         return SLAP_CB_CONTINUE;
 515         }
 516
 517         if ( op->ora_e->e_attrs == NULL ) {
 518                 /* FIXME: global overlay; need to deal with */
 519                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 520                         "consistency checks not implemented when overlay "
 521                         "is instantiated as global.\n",
 522                         op->o_log_prefix, op->o_req_dn.bv_val, 0 );
 523                 return SLAP_CB_CONTINUE;
 524         }
 525
 526         if ( MEMBEROF_REVERSE( mo ) ) {
 527                 for ( ap = &op->ora_e->e_attrs; *ap; ap = &(*ap)->a_next ) {
 528                         Attribute       *a = *ap;
 529
 530                         if ( a->a_desc == mo->mo_ad_memberof ) {
 531                                 map = ap;
 532                                 break;
 533                         }
 534                 }
 535         }
 536
 537         save_dn = op->o_dn;
 538         save_ndn = op->o_ndn;
 539
 540         if ( MEMBEROF_DANGLING_CHECK( mo )
 541                         && !get_relax( op )
 542                         && is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) )
 543         {
 544                 op->o_dn = op->o_bd->be_rootdn;
 545                 op->o_ndn = op->o_bd->be_rootndn;
 546                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 547
 548                 for ( ap = &op->ora_e->e_attrs; *ap; ) {
 549                         Attribute       *a = *ap;
 550
 551                         if ( !is_ad_subtype( a->a_desc, mo->mo_ad_member ) ) {
 552                                 ap = &a->a_next;
 553                                 continue;
 554                         }
 555
 556                         assert( a->a_nvals != NULL );
 557
 558                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 559                                 Entry           *e = NULL;
 560
 561                                 /* ITS#6670 Ignore member pointing to this entry */
 562                                 if ( dn_match( &a->a_nvals[i], &save_ndn ))
 563                                         continue;
 564
 565                                 rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 566                                                 NULL, NULL, 0, &e );
 567                                 if ( rc == LDAP_SUCCESS ) {
 568                                         be_entry_release_r( op, e );
 569                                         continue;
 570                                 }
 571
 572                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 573                                         rc = rs->sr_err = mo->mo_dangling_err;
 574                                         rs->sr_text = "adding non-existing object "
 575                                                 "as group member";
 576                                         send_ldap_result( op, rs );
 577                                         goto done;
 578                                 }
 579
 580                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 581                                         int     j;
 582
 583                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 584                                                 "member=\"%s\" does not exist (stripping...)\n",
 585                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 586                                                 a->a_vals[ i ].bv_val );
 587
 588                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 589                                         ber_memfree( a->a_vals[ i ].bv_val );
 590                                         BER_BVZERO( &a->a_vals[ i ] );
 591                                         if ( a->a_nvals != a->a_vals ) {
 592                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 593                                                 BER_BVZERO( &a->a_nvals[ i ] );
 594                                         }
 595                                         if ( j - i == 1 ) {
 596                                                 break;
 597                                         }
 598
 599                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 600                                                 sizeof( struct berval ) * ( j - i ) );
 601                                         if ( a->a_nvals != a->a_vals ) {
 602                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 603                                                         sizeof( struct berval ) * ( j - i ) );
 604                                         }
 605                                         i--;
 606                                         a->a_numvals--;
 607                                 }
 608                         }
 609
 610                         /* If all values have been removed,
 611                          * remove the attribute itself. */
 612                         if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 613                                 *ap = a->a_next;
 614                                 attr_free( a );
 615
 616                         } else {
 617                                 ap = &a->a_next;
 618                         }
 619                 }
 620                 op->o_dn = save_dn;
 621                 op->o_ndn = save_ndn;
 622                 op->o_bd->bd_info = (BackendInfo *)on;
 623         }
 624
 625         if ( map != NULL ) {
 626                 Attribute               *a = *map;
 627                 AccessControlState      acl_state = ACL_STATE_INIT;
 628
 629                 for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 630                         Entry           *e;
 631
 632                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 633                         /* access is checked with the original identity */
 634                         rc = access_allowed( op, op->ora_e, mo->mo_ad_memberof,
 635                                         &a->a_nvals[ i ], ACL_WADD,
 636                                         &acl_state );
 637                         if ( rc == 0 ) {
 638                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 639                                 rs->sr_text = NULL;
 640                                 send_ldap_result( op, rs );
 641                                 goto done;
 642                         }
 643                         /* ITS#6670 Ignore member pointing to this entry */
 644                         if ( dn_match( &a->a_nvals[i], &save_ndn ))
 645                                 continue;
 646
 647                         rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 648                                         NULL, NULL, 0, &e );
 649                         op->o_bd->bd_info = (BackendInfo *)on;
 650                         if ( rc != LDAP_SUCCESS ) {
 651                                 if ( get_relax( op ) ) {
 652                                         continue;
 653                                 }
 654
 655                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 656                                         rc = rs->sr_err = mo->mo_dangling_err;
 657                                         rs->sr_text = "adding non-existing object "
 658                                                 "as memberof";
 659                                         send_ldap_result( op, rs );
 660                                         goto done;
 661                                 }
 662
 663                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 664                                         int     j;
 665
 666                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 667                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 668                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 669                                                 a->a_nvals[ i ].bv_val );
 670
 671                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 672                                         ber_memfree( a->a_vals[ i ].bv_val );
 673                                         BER_BVZERO( &a->a_vals[ i ] );
 674                                         if ( a->a_nvals != a->a_vals ) {
 675                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 676                                                 BER_BVZERO( &a->a_nvals[ i ] );
 677                                         }
 678                                         if ( j - i == 1 ) {
 679                                                 break;
 680                                         }
 681
 682                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 683                                                 sizeof( struct berval ) * ( j - i ) );
 684                                         if ( a->a_nvals != a->a_vals ) {
 685                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 686                                                         sizeof( struct berval ) * ( j - i ) );
 687                                         }
 688                                         i--;
 689                                 }
 690
 691                                 continue;
 692                         }
 693
 694                         /* access is checked with the original identity */
 695                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 696                         rc = access_allowed( op, e, mo->mo_ad_member,
 697                                         &op->o_req_ndn, ACL_WADD, NULL );
 698                         be_entry_release_r( op, e );
 699                         op->o_bd->bd_info = (BackendInfo *)on;
 700
 701                         if ( !rc ) {
 702                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 703                                 rs->sr_text = "insufficient access to object referenced by memberof";
 704                                 send_ldap_result( op, rs );
 705                                 goto done;
 706                         }
 707                 }
 708
 709                 if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 710                         *map = a->a_next;
 711                         attr_free( a );
 712                 }
 713         }
 714
 715         rc = SLAP_CB_CONTINUE;
 716
 717         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
 718         sc->sc_private = sc+1;
 719         sc->sc_response = memberof_res_add;
 720         sc->sc_cleanup = memberof_cleanup;
 721         mci = sc->sc_private;
 722         mci->on = on;
 723         mci->member = NULL;
 724         mci->memberof = NULL;
 725         sc->sc_next = op->o_callback;
 726         op->o_callback = sc;
 727
 728 done:;
 729         op->o_dn = save_dn;
 730         op->o_ndn = save_ndn;
 731         op->o_bd->bd_info = (BackendInfo *)on;
 732
 733         return rc;
 734 }
 735
 736 static int
 737 memberof_op_delete( Operation *op, SlapReply *rs )
 738 {
 739         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 740         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 741
 742         slap_callback *sc;
 743         memberof_cbinfo_t *mci;
 744         OpExtra         *oex;
 745
 746         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 747                 if ( oex->oe_key == (void *)&memberof )
 748                         return SLAP_CB_CONTINUE;
 749         }
 750
 751         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
 752         sc->sc_private = sc+1;
 753         sc->sc_response = memberof_res_delete;
 754         sc->sc_cleanup = memberof_cleanup;
 755         mci = sc->sc_private;
 756         mci->on = on;
 757         mci->member = NULL;
 758         mci->memberof = NULL;
 759         mci->what = MEMBEROF_IS_GROUP;
 760         if ( MEMBEROF_REFINT( mo ) ) {
 761                 mci->what = MEMBEROF_IS_BOTH;
 762         }
 763
 764         memberof_isGroupOrMember( op, mci );
 765
 766         sc->sc_next = op->o_callback;
 767         op->o_callback = sc;
 768
 769         return SLAP_CB_CONTINUE;
 770 }
 771
 772 static int
 773 memberof_op_modify( Operation *op, SlapReply *rs )
 774 {
 775         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 776         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 777
 778         Modifications   **mlp, **mmlp = NULL;
 779         int             rc = SLAP_CB_CONTINUE, save_member = 0;
 780         struct berval   save_dn, save_ndn;
 781         slap_callback *sc;
 782         memberof_cbinfo_t *mci, mcis;
 783         OpExtra         *oex;
 784
 785         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 786                 if ( oex->oe_key == (void *)&memberof )
 787                         return SLAP_CB_CONTINUE;
 788         }
 789
 790         if ( MEMBEROF_REVERSE( mo ) ) {
 791                 for ( mlp = &op->orm_modlist; *mlp; mlp = &(*mlp)->sml_next ) {
 792                         Modifications   *ml = *mlp;
 793
 794                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
 795                                 mmlp = mlp;
 796                                 break;
 797                         }
 798                 }
 799         }
 800
 801         save_dn = op->o_dn;
 802         save_ndn = op->o_ndn;
 803         mcis.on = on;
 804         mcis.what = MEMBEROF_IS_GROUP;
 805
 806         if ( memberof_isGroupOrMember( op, &mcis ) == LDAP_SUCCESS
 807                 && ( mcis.what & MEMBEROF_IS_GROUP ) )
 808         {
 809                 Modifications *ml;
 810
 811                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 812                         if ( ml->sml_desc == mo->mo_ad_member ) {
 813                                 switch ( ml->sml_op ) {
 814                                 case LDAP_MOD_DELETE:
 815                                 case LDAP_MOD_REPLACE:
 816                                         save_member = 1;
 817                                         break;
 818                                 }
 819                         }
 820                 }
 821
 822
 823                 if ( MEMBEROF_DANGLING_CHECK( mo )
 824                                 && !get_relax( op ) )
 825                 {
 826                         op->o_dn = op->o_bd->be_rootdn;
 827                         op->o_ndn = op->o_bd->be_rootndn;
 828                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 829
 830                         assert( op->orm_modlist != NULL );
 831
 832                         for ( mlp = &op->orm_modlist; *mlp; ) {
 833                                 Modifications   *ml = *mlp;
 834                                 int             i;
 835
 836                                 if ( !is_ad_subtype( ml->sml_desc, mo->mo_ad_member ) ) {
 837                                         mlp = &ml->sml_next;
 838                                         continue;
 839                                 }
 840
 841                                 switch ( ml->sml_op ) {
 842                                 case LDAP_MOD_DELETE:
 843                                         /* we don't care about cancellations: if the value
 844                                          * exists, fine; if it doesn't, we let the underlying
 845                                          * database fail as appropriate; */
 846                                         mlp = &ml->sml_next;
 847                                         break;
 848
 849                                 case LDAP_MOD_REPLACE:
 850                                         /* Handle this just like a delete (see above) */
 851                                         if ( !ml->sml_values ) {
 852                                                 mlp = &ml->sml_next;
 853                                                 break;
 854                                         }
 855
 856                                 case LDAP_MOD_ADD:
 857                                         /* NOTE: right now, the attributeType we use
 858                                          * for member must have a normalized value */
 859                                         assert( ml->sml_nvalues != NULL );
 860
 861                                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 862                                                 int             rc;
 863                                                 Entry           *e;
 864
 865                                                 /* ITS#6670 Ignore member pointing to this entry */
 866                                                 if ( dn_match( &ml->sml_nvalues[i], &save_ndn ))
 867                                                         continue;
 868
 869                                                 if ( be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 870                                                                 NULL, NULL, 0, &e ) == LDAP_SUCCESS )
 871                                                 {
 872                                                         be_entry_release_r( op, e );
 873                                                         continue;
 874                                                 }
 875
 876                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 877                                                         rc = rs->sr_err = mo->mo_dangling_err;
 878                                                         rs->sr_text = "adding non-existing object "
 879                                                                 "as group member";
 880                                                         send_ldap_result( op, rs );
 881                                                         goto done;
 882                                                 }
 883
 884                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 885                                                         int     j;
 886
 887                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 888                                                                 "member=\"%s\" does not exist (stripping...)\n",
 889                                                                 op->o_log_prefix, op->o_req_dn.bv_val,
 890                                                                 ml->sml_nvalues[ i ].bv_val );
 891
 892                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 893                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 894                                                         BER_BVZERO( &ml->sml_values[ i ] );
 895                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
 896                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
 897                                                         ml->sml_numvals--;
 898                                                         if ( j - i == 1 ) {
 899                                                                 break;
 900                                                         }
 901
 902                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 903                                                                 sizeof( struct berval ) * ( j - i ) );
 904                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 905                                                                 sizeof( struct berval ) * ( j - i ) );
 906                                                         i--;
 907                                                 }
 908                                         }
 909
 910                                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 911                                                 *mlp = ml->sml_next;
 912                                                 slap_mod_free( &ml->sml_mod, 0 );
 913                                                 free( ml );
 914
 915                                         } else {
 916                                                 mlp = &ml->sml_next;
 917                                         }
 918
 919                                         break;
 920
 921                                 default:
 922                                         assert( 0 );
 923                                 }
 924                         }
 925                 }
 926         }
 927
 928         if ( mmlp != NULL ) {
 929                 Modifications   *ml = *mmlp;
 930                 int             i;
 931                 Entry           *target;
 932
 933                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 934                 rc = be_entry_get_rw( op, &op->o_req_ndn,
 935                                 NULL, NULL, 0, &target );
 936                 op->o_bd->bd_info = (BackendInfo *)on;
 937                 if ( rc != LDAP_SUCCESS ) {
 938                         rc = rs->sr_err = LDAP_NO_SUCH_OBJECT;
 939                         send_ldap_result( op, rs );
 940                         goto done;
 941                 }
 942
 943                 switch ( ml->sml_op ) {
 944                 case LDAP_MOD_DELETE:
 945                         if ( ml->sml_nvalues != NULL ) {
 946                                 AccessControlState      acl_state = ACL_STATE_INIT;
 947
 948                                 for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 949                                         Entry           *e;
 950
 951                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 952                                         /* access is checked with the original identity */
 953                                         rc = access_allowed( op, target,
 954                                                         mo->mo_ad_memberof,
 955                                                         &ml->sml_nvalues[ i ],
 956                                                         ACL_WDEL,
 957                                                         &acl_state );
 958                                         if ( rc == 0 ) {
 959                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 960                                                 rs->sr_text = NULL;
 961                                                 send_ldap_result( op, rs );
 962                                                 goto done2;
 963                                         }
 964
 965                                         rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 966                                                         NULL, NULL, 0, &e );
 967                                         op->o_bd->bd_info = (BackendInfo *)on;
 968                                         if ( rc != LDAP_SUCCESS ) {
 969                                                 if ( get_relax( op ) ) {
 970                                                         continue;
 971                                                 }
 972
 973                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 974                                                         rc = rs->sr_err = mo->mo_dangling_err;
 975                                                         rs->sr_text = "deleting non-existing object "
 976                                                                 "as memberof";
 977                                                         send_ldap_result( op, rs );
 978                                                         goto done2;
 979                                                 }
 980
 981                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 982                                                         int     j;
 983
 984                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 985                                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 986                                                                 op->o_log_prefix, op->o_req_ndn.bv_val,
 987                                                                 ml->sml_nvalues[ i ].bv_val );
 988
 989                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 990                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 991                                                         BER_BVZERO( &ml->sml_values[ i ] );
 992                                                         if ( ml->sml_nvalues != ml->sml_values ) {
 993                                                                 ber_memfree( ml->sml_nvalues[ i ].bv_val );
 994                                                                 BER_BVZERO( &ml->sml_nvalues[ i ] );
 995                                                         }
 996                                                         ml->sml_numvals--;
 997                                                         if ( j - i == 1 ) {
 998                                                                 break;
 999                                                         }
1000
1001                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1002                                                                 sizeof( struct berval ) * ( j - i ) );
1003                                                         if ( ml->sml_nvalues != ml->sml_values ) {
1004                                                                 AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1005                                                                         sizeof( struct berval ) * ( j - i ) );
1006                                                         }
1007                                                         i--;
1008                                                 }
1009
1010                                                 continue;
1011                                         }
1012
1013                                         /* access is checked with the original identity */
1014                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1015                                         rc = access_allowed( op, e, mo->mo_ad_member,
1016                                                         &op->o_req_ndn,
1017                                                         ACL_WDEL, NULL );
1018                                         be_entry_release_r( op, e );
1019                                         op->o_bd->bd_info = (BackendInfo *)on;
1020
1021                                         if ( !rc ) {
1022                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1023                                                 rs->sr_text = "insufficient access to object referenced by memberof";
1024                                                 send_ldap_result( op, rs );
1025                                                 goto done;
1026                                         }
1027                                 }
1028
1029                                 if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1030                                         *mmlp = ml->sml_next;
1031                                         slap_mod_free( &ml->sml_mod, 0 );
1032                                         free( ml );
1033                                 }
1034
1035                                 break;
1036                         }
1037                         /* fall thru */
1038
1039                 case LDAP_MOD_REPLACE:
1040
1041                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1042                         /* access is checked with the original identity */
1043                         rc = access_allowed( op, target,
1044                                         mo->mo_ad_memberof,
1045                                         NULL,
1046                                         ACL_WDEL, NULL );
1047                         op->o_bd->bd_info = (BackendInfo *)on;
1048                         if ( rc == 0 ) {
1049                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1050                                 rs->sr_text = NULL;
1051                                 send_ldap_result( op, rs );
1052                                 goto done2;
1053                         }
1054
1055                         if ( ml->sml_op == LDAP_MOD_DELETE || !ml->sml_values ) {
1056                                 break;
1057                         }
1058                         /* fall thru */
1059
1060                 case LDAP_MOD_ADD: {
1061                         AccessControlState      acl_state = ACL_STATE_INIT;
1062
1063                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
1064                                 Entry           *e;
1065
1066                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1067                                 /* access is checked with the original identity */
1068                                 rc = access_allowed( op, target,
1069                                                 mo->mo_ad_memberof,
1070                                                 &ml->sml_nvalues[ i ],
1071                                                 ACL_WADD,
1072                                                 &acl_state );
1073                                 if ( rc == 0 ) {
1074                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1075                                         rs->sr_text = NULL;
1076                                         send_ldap_result( op, rs );
1077                                         goto done2;
1078                                 }
1079
1080                                 /* ITS#6670 Ignore member pointing to this entry */
1081                                 if ( dn_match( &ml->sml_nvalues[i], &save_ndn ))
1082                                         continue;
1083
1084                                 rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
1085                                                 NULL, NULL, 0, &e );
1086                                 op->o_bd->bd_info = (BackendInfo *)on;
1087                                 if ( rc != LDAP_SUCCESS ) {
1088                                         if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
1089                                                 rc = rs->sr_err = mo->mo_dangling_err;
1090                                                 rs->sr_text = "adding non-existing object "
1091                                                         "as memberof";
1092                                                 send_ldap_result( op, rs );
1093                                                 goto done2;
1094                                         }
1095
1096                                         if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1097                                                 int     j;
1098
1099                                                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1100                                                         "memberof=\"%s\" does not exist (stripping...)\n",
1101                                                         op->o_log_prefix, op->o_req_ndn.bv_val,
1102                                                         ml->sml_nvalues[ i ].bv_val );
1103
1104                                                 for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1105                                                 ber_memfree( ml->sml_values[ i ].bv_val );
1106                                                 BER_BVZERO( &ml->sml_values[ i ] );
1107                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1108                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
1109                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
1110                                                 }
1111                                                 ml->sml_numvals--;
1112                                                 if ( j - i == 1 ) {
1113                                                         break;
1114                                                 }
1115
1116                                                 AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1117                                                         sizeof( struct berval ) * ( j - i ) );
1118                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1119                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1120                                                                 sizeof( struct berval ) * ( j - i ) );
1121                                                 }
1122                                                 i--;
1123                                         }
1124
1125                                         continue;
1126                                 }
1127
1128                                 /* access is checked with the original identity */
1129                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1130                                 rc = access_allowed( op, e, mo->mo_ad_member,
1131                                                 &op->o_req_ndn,
1132                                                 ACL_WDEL, NULL );
1133                                 be_entry_release_r( op, e );
1134                                 op->o_bd->bd_info = (BackendInfo *)on;
1135
1136                                 if ( !rc ) {
1137                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1138                                         rs->sr_text = "insufficient access to object referenced by memberof";
1139                                         send_ldap_result( op, rs );
1140                                         goto done;
1141                                 }
1142                         }
1143
1144                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1145                                 *mmlp = ml->sml_next;
1146                                 slap_mod_free( &ml->sml_mod, 0 );
1147                                 free( ml );
1148                         }
1149
1150                         } break;
1151
1152                 default:
1153                         assert( 0 );
1154                 }
1155
1156 done2:;
1157                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1158                 be_entry_release_r( op, target );
1159                 op->o_bd->bd_info = (BackendInfo *)on;
1160         }
1161
1162         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
1163         sc->sc_private = sc+1;
1164         sc->sc_response = memberof_res_modify;
1165         sc->sc_cleanup = memberof_cleanup;
1166         mci = sc->sc_private;
1167         mci->on = on;
1168         mci->member = NULL;
1169         mci->memberof = NULL;
1170         mci->what = mcis.what;
1171
1172         if ( save_member ) {
1173                 op->o_dn = op->o_bd->be_rootdn;
1174                 op->o_ndn = op->o_bd->be_rootndn;
1175                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1176                 rc = backend_attribute( op, NULL, &op->o_req_ndn,
1177                                 mo->mo_ad_member, &mci->member, ACL_READ );
1178                 op->o_bd->bd_info = (BackendInfo *)on;
1179         }
1180
1181         sc->sc_next = op->o_callback;
1182         op->o_callback = sc;
1183
1184         rc = SLAP_CB_CONTINUE;
1185
1186 done:;
1187         op->o_dn = save_dn;
1188         op->o_ndn = save_ndn;
1189         op->o_bd->bd_info = (BackendInfo *)on;
1190
1191         return rc;
1192 }
1193
1194 static int
1195 memberof_op_modrdn( Operation *op, SlapReply *rs )
1196 {
1197         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1198         slap_callback *sc;
1199         memberof_cbinfo_t *mci;
1200         OpExtra         *oex;
1201
1202         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
1203                 if ( oex->oe_key == (void *)&memberof )
1204                         return SLAP_CB_CONTINUE;
1205         }
1206
1207         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
1208         sc->sc_private = sc+1;
1209         sc->sc_response = memberof_res_modrdn;
1210         sc->sc_cleanup = memberof_cleanup;
1211         mci = sc->sc_private;
1212         mci->on = on;
1213         mci->member = NULL;
1214         mci->memberof = NULL;
1215
1216         sc->sc_next = op->o_callback;
1217         op->o_callback = sc;
1218
1219         return SLAP_CB_CONTINUE;
1220 }
1221
1222 /*
1223  * response callback that adds memberof values when a group is added.
1224  */
1225 static int
1226 memberof_res_add( Operation *op, SlapReply *rs )
1227 {
1228         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1229         slap_overinst   *on = mci->on;
1230         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1231
1232         int             i;
1233
1234         if ( rs->sr_err != LDAP_SUCCESS ) {
1235                 return SLAP_CB_CONTINUE;
1236         }
1237
1238         if ( MEMBEROF_REVERSE( mo ) ) {
1239                 Attribute       *ma;
1240
1241                 ma = attr_find( op->ora_e->e_attrs, mo->mo_ad_memberof );
1242                 if ( ma != NULL ) {
1243                         /* relax is required to allow to add
1244                          * a non-existing member */
1245                         op->o_relax = SLAP_CONTROL_CRITICAL;
1246
1247                         for ( i = 0; !BER_BVISNULL( &ma->a_nvals[ i ] ); i++ ) {
1248
1249                                 /* ITS#6670 Ignore member pointing to this entry */
1250                                 if ( dn_match( &ma->a_nvals[i], &op->o_req_ndn ))
1251                                         continue;
1252
1253                                 /* the modification is attempted
1254                                  * with the original identity */
1255                                 memberof_value_modify( op,
1256                                         &ma->a_nvals[ i ], mo->mo_ad_member,
1257                                         NULL, NULL, &op->o_req_dn, &op->o_req_ndn );
1258                         }
1259                 }
1260         }
1261
1262         if ( is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) ) {
1263                 Attribute       *a;
1264
1265                 for ( a = attrs_find( op->ora_e->e_attrs, mo->mo_ad_member );
1266                                 a != NULL;
1267                                 a = attrs_find( a->a_next, mo->mo_ad_member ) )
1268                 {
1269                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
1270                                 /* ITS#6670 Ignore member pointing to this entry */
1271                                 if ( dn_match( &a->a_nvals[i], &op->o_req_ndn ))
1272                                         continue;
1273
1274                                 memberof_value_modify( op,
1275                                                 &a->a_nvals[ i ],
1276                                                 mo->mo_ad_memberof,
1277                                                 NULL, NULL,
1278                                                 &op->o_req_dn,
1279                                                 &op->o_req_ndn );
1280                         }
1281                 }
1282         }
1283
1284         return SLAP_CB_CONTINUE;
1285 }
1286
1287 /*
1288  * response callback that deletes memberof values when a group is deleted.
1289  */
1290 static int
1291 memberof_res_delete( Operation *op, SlapReply *rs )
1292 {
1293         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1294         slap_overinst   *on = mci->on;
1295         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1296
1297         BerVarray       vals;
1298         int             i;
1299
1300         if ( rs->sr_err != LDAP_SUCCESS ) {
1301                 return SLAP_CB_CONTINUE;
1302         }
1303
1304         vals = mci->member;
1305         if ( vals != NULL ) {
1306                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1307                         memberof_value_modify( op,
1308                                         &vals[ i ], mo->mo_ad_memberof,
1309                                         &op->o_req_dn, &op->o_req_ndn,
1310                                         NULL, NULL );
1311                 }
1312         }
1313
1314         if ( MEMBEROF_REFINT( mo ) ) {
1315                 vals = mci->memberof;
1316                 if ( vals != NULL ) {
1317                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1318                                 memberof_value_modify( op,
1319                                                 &vals[ i ], mo->mo_ad_member,
1320                                                 &op->o_req_dn, &op->o_req_ndn,
1321                                                 NULL, NULL );
1322                         }
1323                 }
1324         }
1325
1326         return SLAP_CB_CONTINUE;
1327 }
1328
1329 /*
1330  * response callback that adds/deletes memberof values when a group
1331  * is modified.
1332  */
1333 static int
1334 memberof_res_modify( Operation *op, SlapReply *rs )
1335 {
1336         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1337         slap_overinst   *on = mci->on;
1338         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1339
1340         int             i, rc;
1341         Modifications   *ml, *mml = NULL;
1342         BerVarray       vals;
1343
1344         if ( rs->sr_err != LDAP_SUCCESS ) {
1345                 return SLAP_CB_CONTINUE;
1346         }
1347
1348         if ( MEMBEROF_REVERSE( mo ) ) {
1349                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1350                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
1351                                 mml = ml;
1352                                 break;
1353                         }
1354                 }
1355         }
1356
1357         if ( mml != NULL ) {
1358                 BerVarray       vals = mml->sml_nvalues;
1359
1360                 switch ( mml->sml_op ) {
1361                 case LDAP_MOD_DELETE:
1362                         if ( vals != NULL ) {
1363                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1364                                         memberof_value_modify( op,
1365                                                         &vals[ i ], mo->mo_ad_member,
1366                                                         &op->o_req_dn, &op->o_req_ndn,
1367                                                         NULL, NULL );
1368                                 }
1369                                 break;
1370                         }
1371                         /* fall thru */
1372
1373                 case LDAP_MOD_REPLACE:
1374                         /* delete all ... */
1375                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1376                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
1377                                         mo->mo_ad_memberof, &vals, ACL_READ );
1378                         op->o_bd->bd_info = (BackendInfo *)on;
1379                         if ( rc == LDAP_SUCCESS ) {
1380                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1381                                         memberof_value_modify( op,
1382                                                         &vals[ i ], mo->mo_ad_member,
1383                                                         &op->o_req_dn, &op->o_req_ndn,
1384                                                         NULL, NULL );
1385                                 }
1386                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
1387                         }
1388
1389                         if ( ml->sml_op == LDAP_MOD_DELETE || !mml->sml_values ) {
1390                                 break;
1391                         }
1392                         /* fall thru */
1393
1394                 case LDAP_MOD_ADD:
1395                         assert( vals != NULL );
1396
1397                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1398                                 memberof_value_modify( op,
1399                                                 &vals[ i ], mo->mo_ad_member,
1400                                                 NULL, NULL,
1401                                                 &op->o_req_dn, &op->o_req_ndn );
1402                         }
1403                         break;
1404
1405                 default:
1406                         assert( 0 );
1407                 }
1408         }
1409
1410         if ( mci->what & MEMBEROF_IS_GROUP )
1411         {
1412                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1413                         if ( ml->sml_desc != mo->mo_ad_member ) {
1414                                 continue;
1415                         }
1416
1417                         switch ( ml->sml_op ) {
1418                         case LDAP_MOD_DELETE:
1419                                 vals = ml->sml_nvalues;
1420                                 if ( vals != NULL ) {
1421                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1422                                                 memberof_value_modify( op,
1423                                                                 &vals[ i ], mo->mo_ad_memberof,
1424                                                                 &op->o_req_dn, &op->o_req_ndn,
1425                                                                 NULL, NULL );
1426                                         }
1427                                         break;
1428                                 }
1429                                 /* fall thru */
1430
1431                         case LDAP_MOD_REPLACE:
1432                                 vals = mci->member;
1433
1434                                 /* delete all ... */
1435                                 if ( vals != NULL ) {
1436                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1437                                                 memberof_value_modify( op,
1438                                                                 &vals[ i ], mo->mo_ad_memberof,
1439                                                                 &op->o_req_dn, &op->o_req_ndn,
1440                                                                 NULL, NULL );
1441                                         }
1442                                 }
1443
1444                                 if ( ml->sml_op == LDAP_MOD_DELETE || !ml->sml_values ) {
1445                                         break;
1446                                 }
1447                                 /* fall thru */
1448
1449                         case LDAP_MOD_ADD:
1450                                 assert( ml->sml_nvalues != NULL );
1451                                 vals = ml->sml_nvalues;
1452                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1453                                         memberof_value_modify( op,
1454                                                         &vals[ i ], mo->mo_ad_memberof,
1455                                                         NULL, NULL,
1456                                                         &op->o_req_dn, &op->o_req_ndn );
1457                                 }
1458                                 break;
1459
1460                         default:
1461                                 assert( 0 );
1462                         }
1463                 }
1464         }
1465
1466         return SLAP_CB_CONTINUE;
1467 }
1468
1469 /*
1470  * response callback that adds/deletes member values when a group member
1471  * is renamed.
1472  */
1473 static int
1474 memberof_res_modrdn( Operation *op, SlapReply *rs )
1475 {
1476         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1477         slap_overinst   *on = mci->on;
1478         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1479
1480         struct berval   newPDN, newDN = BER_BVNULL, newPNDN, newNDN;
1481         int             i, rc;
1482         BerVarray       vals;
1483
1484         struct berval   save_dn, save_ndn;
1485
1486         if ( rs->sr_err != LDAP_SUCCESS ) {
1487                 return SLAP_CB_CONTINUE;
1488         }
1489
1490         mci->what = MEMBEROF_IS_GROUP;
1491         if ( MEMBEROF_REFINT( mo ) ) {
1492                 mci->what |= MEMBEROF_IS_MEMBER;
1493         }
1494
1495         if ( op->orr_nnewSup ) {
1496                 newPNDN = *op->orr_nnewSup;
1497
1498         } else {
1499                 dnParent( &op->o_req_ndn, &newPNDN );
1500         }
1501
1502         build_new_dn( &newNDN, &newPNDN, &op->orr_nnewrdn, op->o_tmpmemctx );
1503
1504         save_dn = op->o_req_dn;
1505         save_ndn = op->o_req_ndn;
1506
1507         op->o_req_dn = newNDN;
1508         op->o_req_ndn = newNDN;
1509         rc = memberof_isGroupOrMember( op, mci );
1510         op->o_req_dn = save_dn;
1511         op->o_req_ndn = save_ndn;
1512
1513         if ( rc != LDAP_SUCCESS || mci->what == MEMBEROF_IS_NONE ) {
1514                 goto done;
1515         }
1516
1517         if ( op->orr_newSup ) {
1518                 newPDN = *op->orr_newSup;
1519
1520         } else {
1521                 dnParent( &op->o_req_dn, &newPDN );
1522         }
1523
1524         build_new_dn( &newDN, &newPDN, &op->orr_newrdn, op->o_tmpmemctx );
1525
1526         if ( mci->what & MEMBEROF_IS_GROUP ) {
1527                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1528                 rc = backend_attribute( op, NULL, &newNDN,
1529                                 mo->mo_ad_member, &vals, ACL_READ );
1530                 op->o_bd->bd_info = (BackendInfo *)on;
1531
1532                 if ( rc == LDAP_SUCCESS ) {
1533                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1534                                 memberof_value_modify( op,
1535                                                 &vals[ i ], mo->mo_ad_memberof,
1536                                                 &op->o_req_dn, &op->o_req_ndn,
1537                                                 &newDN, &newNDN );
1538                         }
1539                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1540                 }
1541         }
1542
1543         if ( MEMBEROF_REFINT( mo ) && ( mci->what & MEMBEROF_IS_MEMBER ) ) {
1544                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1545                 rc = backend_attribute( op, NULL, &newNDN,
1546                                 mo->mo_ad_memberof, &vals, ACL_READ );
1547                 op->o_bd->bd_info = (BackendInfo *)on;
1548
1549                 if ( rc == LDAP_SUCCESS ) {
1550                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1551                                 memberof_value_modify( op,
1552                                                 &vals[ i ], mo->mo_ad_member,
1553                                                 &op->o_req_dn, &op->o_req_ndn,
1554                                                 &newDN, &newNDN );
1555                         }
1556                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1557                 }
1558         }
1559
1560 done:;
1561         if ( !BER_BVISNULL( &newDN ) ) {
1562                 op->o_tmpfree( newDN.bv_val, op->o_tmpmemctx );
1563         }
1564         op->o_tmpfree( newNDN.bv_val, op->o_tmpmemctx );
1565
1566         return SLAP_CB_CONTINUE;
1567 }
1568
1569
1570 static int
1571 memberof_db_init(
1572         BackendDB       *be,
1573         ConfigReply     *cr )
1574 {
1575         slap_overinst   *on = (slap_overinst *)be->bd_info;
1576         memberof_t              *mo;
1577
1578         mo = (memberof_t *)ch_calloc( 1, sizeof( memberof_t ) );
1579
1580         /* safe default */
1581         mo->mo_dangling_err = LDAP_CONSTRAINT_VIOLATION;
1582
1583         on->on_bi.bi_private = (void *)mo;
1584
1585         return 0;
1586 }
1587
1588 enum {
1589         MO_DN = 1,
1590         MO_DANGLING,
1591         MO_REFINT,
1592         MO_GROUP_OC,
1593         MO_MEMBER_AD,
1594         MO_MEMBER_OF_AD,
1595 #if 0
1596         MO_REVERSE,
1597 #endif
1598
1599         MO_DANGLING_ERROR,
1600
1601         MO_LAST
1602 };
1603
1604 static ConfigDriver mo_cf_gen;
1605
1606 #define OID             "1.3.6.1.4.1.7136.2.666.4"
1607 #define OIDAT           OID ".1.1"
1608 #define OIDCFGAT        OID ".1.2"
1609 #define OIDOC           OID ".2.1"
1610 #define OIDCFGOC        OID ".2.2"
1611
1612
1613 static ConfigTable mo_cfg[] = {
1614         { "memberof-dn", "modifiersName",
1615                 2, 2, 0, ARG_MAGIC|ARG_DN|MO_DN, mo_cf_gen,
1616                 "( OLcfgOvAt:18.0 NAME 'olcMemberOfDN' "
1617                         "DESC 'DN to be used as modifiersName' "
1618                         "SYNTAX OMsDN SINGLE-VALUE )",
1619                 NULL, NULL },
1620
1621         { "memberof-dangling", "ignore|drop|error",
1622                 2, 2, 0, ARG_MAGIC|MO_DANGLING, mo_cf_gen,
1623                 "( OLcfgOvAt:18.1 NAME 'olcMemberOfDangling' "
1624                         "DESC 'Behavior with respect to dangling members, "
1625                                 "constrained to ignore, drop, error' "
1626                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1627                 NULL, NULL },
1628
1629         { "memberof-refint", "true|FALSE",
1630                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REFINT, mo_cf_gen,
1631                 "( OLcfgOvAt:18.2 NAME 'olcMemberOfRefInt' "
1632                         "DESC 'Take care of referential integrity' "
1633                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1634                 NULL, NULL },
1635
1636         { "memberof-group-oc", "objectClass",
1637                 2, 2, 0, ARG_MAGIC|MO_GROUP_OC, mo_cf_gen,
1638                 "( OLcfgOvAt:18.3 NAME 'olcMemberOfGroupOC' "
1639                         "DESC 'Group objectClass' "
1640                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1641                 NULL, NULL },
1642
1643         { "memberof-member-ad", "member attribute",
1644                 2, 2, 0, ARG_MAGIC|MO_MEMBER_AD, mo_cf_gen,
1645                 "( OLcfgOvAt:18.4 NAME 'olcMemberOfMemberAD' "
1646                         "DESC 'member attribute' "
1647                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1648                 NULL, NULL },
1649
1650         { "memberof-memberof-ad", "memberOf attribute",
1651                 2, 2, 0, ARG_MAGIC|MO_MEMBER_OF_AD, mo_cf_gen,
1652                 "( OLcfgOvAt:18.5 NAME 'olcMemberOfMemberOfAD' "
1653                         "DESC 'memberOf attribute' "
1654                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1655                 NULL, NULL },
1656
1657 #if 0
1658         { "memberof-reverse", "true|FALSE",
1659                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REVERSE, mo_cf_gen,
1660                 "( OLcfgOvAt:18.6 NAME 'olcMemberOfReverse' "
1661                         "DESC 'Take care of referential integrity "
1662                                 "also when directly modifying memberOf' "
1663                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1664                 NULL, NULL },
1665 #endif
1666
1667         { "memberof-dangling-error", "error code",
1668                 2, 2, 0, ARG_MAGIC|MO_DANGLING_ERROR, mo_cf_gen,
1669                 "( OLcfgOvAt:18.7 NAME 'olcMemberOfDanglingError' "
1670                         "DESC 'Error code returned in case of dangling back reference' "
1671                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1672                 NULL, NULL },
1673
1674         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1675 };
1676
1677 static ConfigOCs mo_ocs[] = {
1678         { "( OLcfgOvOc:18.1 "
1679                 "NAME 'olcMemberOf' "
1680                 "DESC 'Member-of configuration' "
1681                 "SUP olcOverlayConfig "
1682                 "MAY ( "
1683                         "olcMemberOfDN "
1684                         "$ olcMemberOfDangling "
1685                         "$ olcMemberOfDanglingError"
1686                         "$ olcMemberOfRefInt "
1687                         "$ olcMemberOfGroupOC "
1688                         "$ olcMemberOfMemberAD "
1689                         "$ olcMemberOfMemberOfAD "
1690 #if 0
1691                         "$ olcMemberOfReverse "
1692 #endif
1693                         ") "
1694                 ")",
1695                 Cft_Overlay, mo_cfg, NULL, NULL },
1696         { NULL, 0, NULL }
1697 };
1698
1699 static slap_verbmasks dangling_mode[] = {
1700         { BER_BVC( "ignore" ),          MEMBEROF_NONE },
1701         { BER_BVC( "drop" ),            MEMBEROF_FDANGLING_DROP },
1702         { BER_BVC( "error" ),           MEMBEROF_FDANGLING_ERROR },
1703         { BER_BVNULL,                   0 }
1704 };
1705
1706 static int
1707 memberof_make_group_filter( memberof_t *mo )
1708 {
1709         char            *ptr;
1710
1711         if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1712                 ch_free( mo->mo_groupFilterstr.bv_val );
1713         }
1714
1715         mo->mo_groupFilter.f_choice = LDAP_FILTER_EQUALITY;
1716         mo->mo_groupFilter.f_ava = &mo->mo_groupAVA;
1717
1718         mo->mo_groupFilter.f_av_desc = slap_schema.si_ad_objectClass;
1719         mo->mo_groupFilter.f_av_value = mo->mo_oc_group->soc_cname;
1720
1721         mo->mo_groupFilterstr.bv_len = STRLENOF( "(=)" )
1722                 + slap_schema.si_ad_objectClass->ad_cname.bv_len
1723                 + mo->mo_oc_group->soc_cname.bv_len;
1724         ptr = mo->mo_groupFilterstr.bv_val = ch_malloc( mo->mo_groupFilterstr.bv_len + 1 );
1725         *ptr++ = '(';
1726         ptr = lutil_strcopy( ptr, slap_schema.si_ad_objectClass->ad_cname.bv_val );
1727         *ptr++ = '=';
1728         ptr = lutil_strcopy( ptr, mo->mo_oc_group->soc_cname.bv_val );
1729         *ptr++ = ')';
1730         *ptr = '\0';
1731
1732         return 0;
1733 }
1734
1735 static int
1736 memberof_make_member_filter( memberof_t *mo )
1737 {
1738         char            *ptr;
1739
1740         if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1741                 ch_free( mo->mo_memberFilterstr.bv_val );
1742         }
1743
1744         mo->mo_memberFilter.f_choice = LDAP_FILTER_PRESENT;
1745         mo->mo_memberFilter.f_desc = mo->mo_ad_memberof;
1746
1747         mo->mo_memberFilterstr.bv_len = STRLENOF( "(=*)" )
1748                 + mo->mo_ad_memberof->ad_cname.bv_len;
1749         ptr = mo->mo_memberFilterstr.bv_val = ch_malloc( mo->mo_memberFilterstr.bv_len + 1 );
1750         *ptr++ = '(';
1751         ptr = lutil_strcopy( ptr, mo->mo_ad_memberof->ad_cname.bv_val );
1752         ptr = lutil_strcopy( ptr, "=*)" );
1753
1754         return 0;
1755 }
1756
1757 static int
1758 mo_cf_gen( ConfigArgs *c )
1759 {
1760         slap_overinst   *on = (slap_overinst *)c->bi;
1761         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1762
1763         int             i, rc = 0;
1764
1765         if ( c->op == SLAP_CONFIG_EMIT ) {
1766                 struct berval bv = BER_BVNULL;
1767
1768                 switch( c->type ) {
1769                 case MO_DN:
1770                         if ( mo->mo_dn.bv_val != NULL) {
1771                                 value_add_one( &c->rvalue_vals, &mo->mo_dn );
1772                                 value_add_one( &c->rvalue_nvals, &mo->mo_ndn );
1773                         }
1774                         break;
1775
1776                 case MO_DANGLING:
1777                         enum_to_verb( dangling_mode, (mo->mo_flags & MEMBEROF_FDANGLING_MASK), &bv );
1778                         if ( BER_BVISNULL( &bv ) ) {
1779                                 /* there's something wrong... */
1780                                 assert( 0 );
1781                                 rc = 1;
1782
1783                         } else {
1784                                 value_add_one( &c->rvalue_vals, &bv );
1785                         }
1786                         break;
1787
1788                 case MO_DANGLING_ERROR:
1789                         if ( mo->mo_flags & MEMBEROF_FDANGLING_ERROR ) {
1790                                 char buf[ SLAP_TEXT_BUFLEN ];
1791                                 enum_to_verb( slap_ldap_response_code, mo->mo_dangling_err, &bv );
1792                                 if ( BER_BVISNULL( &bv ) ) {
1793                                         bv.bv_len = snprintf( buf, sizeof( buf ), "0x%x", mo->mo_dangling_err );
1794                                         if ( bv.bv_len < sizeof( buf ) ) {
1795                                                 bv.bv_val = buf;
1796                                         } else {
1797                                                 rc = 1;
1798                                                 break;
1799                                         }
1800                                 }
1801                                 value_add_one( &c->rvalue_vals, &bv );
1802                         } else {
1803                                 rc = 1;
1804                         }
1805                         break;
1806
1807                 case MO_REFINT:
1808                         c->value_int = MEMBEROF_REFINT( mo );
1809                         break;
1810
1811 #if 0
1812                 case MO_REVERSE:
1813                         c->value_int = MEMBEROF_REVERSE( mo );
1814                         break;
1815 #endif
1816
1817                 case MO_GROUP_OC:
1818                         if ( mo->mo_oc_group != NULL ){
1819                                 value_add_one( &c->rvalue_vals, &mo->mo_oc_group->soc_cname );
1820                         }
1821                         break;
1822
1823                 case MO_MEMBER_AD:
1824                         if ( mo->mo_ad_member != NULL ){
1825                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_member->ad_cname );
1826                         }
1827                         break;
1828
1829                 case MO_MEMBER_OF_AD:
1830                         if ( mo->mo_ad_memberof != NULL ){
1831                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_memberof->ad_cname );
1832                         }
1833                         break;
1834
1835                 default:
1836                         assert( 0 );
1837                         return 1;
1838                 }
1839
1840                 return rc;
1841
1842         } else if ( c->op == LDAP_MOD_DELETE ) {
1843                 return 1;       /* FIXME */
1844
1845         } else {
1846                 switch( c->type ) {
1847                 case MO_DN:
1848                         if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1849                                 ber_memfree( mo->mo_dn.bv_val );
1850                                 ber_memfree( mo->mo_ndn.bv_val );
1851                         }
1852                         mo->mo_dn = c->value_dn;
1853                         mo->mo_ndn = c->value_ndn;
1854                         break;
1855
1856                 case MO_DANGLING:
1857                         i = verb_to_mask( c->argv[ 1 ], dangling_mode );
1858                         if ( BER_BVISNULL( &dangling_mode[ i ].word ) ) {
1859                                 return 1;
1860                         }
1861
1862                         mo->mo_flags &= ~MEMBEROF_FDANGLING_MASK;
1863                         mo->mo_flags |= dangling_mode[ i ].mask;
1864                         break;
1865
1866                 case MO_DANGLING_ERROR:
1867                         i = verb_to_mask( c->argv[ 1 ], slap_ldap_response_code );
1868                         if ( !BER_BVISNULL( &slap_ldap_response_code[ i ].word ) ) {
1869                                 mo->mo_dangling_err = slap_ldap_response_code[ i ].mask;
1870                         } else if ( lutil_atoix( &mo->mo_dangling_err, c->argv[ 1 ], 0 ) ) {
1871                                 return 1;
1872                         }
1873                         break;
1874
1875                 case MO_REFINT:
1876                         if ( c->value_int ) {
1877                                 mo->mo_flags |= MEMBEROF_FREFINT;
1878
1879                         } else {
1880                                 mo->mo_flags &= ~MEMBEROF_FREFINT;
1881                         }
1882                         break;
1883
1884 #if 0
1885                 case MO_REVERSE:
1886                         if ( c->value_int ) {
1887                                 mo->mo_flags |= MEMBEROF_FREVERSE;
1888
1889                         } else {
1890                                 mo->mo_flags &= ~MEMBEROF_FREVERSE;
1891                         }
1892                         break;
1893 #endif
1894
1895                 case MO_GROUP_OC: {
1896                         ObjectClass     *oc = NULL;
1897
1898                         oc = oc_find( c->argv[ 1 ] );
1899                         if ( oc == NULL ) {
1900                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1901                                         "unable to find group objectClass=\"%s\"",
1902                                         c->argv[ 1 ] );
1903                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1904                                         c->log, c->cr_msg, 0 );
1905                                 return 1;
1906                         }
1907
1908                         mo->mo_oc_group = oc;
1909                         memberof_make_group_filter( mo );
1910                         } break;
1911
1912                 case MO_MEMBER_AD: {
1913                         AttributeDescription    *ad = NULL;
1914                         const char              *text = NULL;
1915
1916
1917                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1918                         if ( rc != LDAP_SUCCESS ) {
1919                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1920                                         "unable to find member attribute=\"%s\": %s (%d)",
1921                                         c->argv[ 1 ], text, rc );
1922                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1923                                         c->log, c->cr_msg, 0 );
1924                                 return 1;
1925                         }
1926
1927                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1928                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1929                         {
1930                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1931                                         "member attribute=\"%s\" must either "
1932                                         "have DN (%s) or nameUID (%s) syntax",
1933                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1934                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1935                                         c->log, c->cr_msg, 0 );
1936                                 return 1;
1937                         }
1938
1939                         mo->mo_ad_member = ad;
1940                         } break;
1941
1942                 case MO_MEMBER_OF_AD: {
1943                         AttributeDescription    *ad = NULL;
1944                         const char              *text = NULL;
1945
1946
1947                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1948                         if ( rc != LDAP_SUCCESS ) {
1949                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1950                                         "unable to find memberof attribute=\"%s\": %s (%d)",
1951                                         c->argv[ 1 ], text, rc );
1952                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1953                                         c->log, c->cr_msg, 0 );
1954                                 return 1;
1955                         }
1956
1957                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1958                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1959                         {
1960                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1961                                         "memberof attribute=\"%s\" must either "
1962                                         "have DN (%s) or nameUID (%s) syntax",
1963                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1964                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1965                                         c->log, c->cr_msg, 0 );
1966                                 return 1;
1967                         }
1968
1969                         mo->mo_ad_memberof = ad;
1970                         memberof_make_member_filter( mo );
1971                         } break;
1972
1973                 default:
1974                         assert( 0 );
1975                         return 1;
1976                 }
1977         }
1978
1979         return 0;
1980 }
1981
1982 static int
1983 memberof_db_open(
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         int             rc;
1991         const char      *text = NULL;
1992
1993         if( ! mo->mo_ad_memberof ){
1994                 rc = slap_str2ad( SLAPD_MEMBEROF_ATTR, &mo->mo_ad_memberof, &text );
1995                 if ( rc != LDAP_SUCCESS ) {
1996                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
1997                                         "unable to find attribute=\"%s\": %s (%d)\n",
1998                                         SLAPD_MEMBEROF_ATTR, text, rc );
1999                         return rc;
2000                 }
2001         }
2002
2003         if( ! mo->mo_ad_member ){
2004                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &mo->mo_ad_member, &text );
2005                 if ( rc != LDAP_SUCCESS ) {
2006                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
2007                                         "unable to find attribute=\"%s\": %s (%d)\n",
2008                                         SLAPD_GROUP_ATTR, text, rc );
2009                         return rc;
2010                 }
2011         }
2012
2013         if( ! mo->mo_oc_group ){
2014                 mo->mo_oc_group = oc_find( SLAPD_GROUP_CLASS );
2015                 if ( mo->mo_oc_group == NULL ) {
2016                         Debug( LDAP_DEBUG_ANY,
2017                                         "memberof_db_open: "
2018                                         "unable to find objectClass=\"%s\"\n",
2019                                         SLAPD_GROUP_CLASS, 0, 0 );
2020                         return 1;
2021                 }
2022         }
2023
2024         if ( BER_BVISNULL( &mo->mo_dn ) && !BER_BVISNULL( &be->be_rootdn ) ) {
2025                 ber_dupbv( &mo->mo_dn, &be->be_rootdn );
2026                 ber_dupbv( &mo->mo_ndn, &be->be_rootndn );
2027         }
2028
2029         if ( BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
2030                 memberof_make_group_filter( mo );
2031         }
2032
2033         if ( BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
2034                 memberof_make_member_filter( mo );
2035         }
2036
2037         return 0;
2038 }
2039
2040 static int
2041 memberof_db_destroy(
2042         BackendDB       *be,
2043         ConfigReply     *cr )
2044 {
2045         slap_overinst   *on = (slap_overinst *)be->bd_info;
2046         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
2047
2048         if ( mo ) {
2049                 if ( !BER_BVISNULL( &mo->mo_dn ) ) {
2050                         ber_memfree( mo->mo_dn.bv_val );
2051                         ber_memfree( mo->mo_ndn.bv_val );
2052                 }
2053
2054                 if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
2055                         ber_memfree( mo->mo_groupFilterstr.bv_val );
2056                 }
2057
2058                 if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
2059                         ber_memfree( mo->mo_memberFilterstr.bv_val );
2060                 }
2061
2062                 ber_memfree( mo );
2063         }
2064
2065         return 0;
2066 }
2067
2068 /* unused */
2069 static AttributeDescription     *ad_memberOf;
2070
2071 static struct {
2072         char    *desc;
2073         AttributeDescription **adp;
2074 } as[] = {
2075         { "( 1.2.840.113556.1.2.102 "
2076                 "NAME 'memberOf' "
2077                 "DESC 'Group that the entry belongs to' "
2078                 "SYNTAX '1.3.6.1.4.1.1466.115.121.1.12' "
2079                 "EQUALITY distinguishedNameMatch "      /* added */
2080                 "USAGE dSAOperation "                   /* added; questioned */
2081                 /* "NO-USER-MODIFICATION " */           /* add? */
2082                 "X-ORIGIN 'iPlanet Delegated Administrator' )",
2083                 &ad_memberOf },
2084         { NULL }
2085 };
2086
2087 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2088 static
2089 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2090 int
2091 memberof_initialize( void )
2092 {
2093         int                     code, i;
2094
2095         for ( i = 0; as[ i ].desc != NULL; i++ ) {
2096                 code = register_at( as[ i ].desc, as[ i ].adp, 0 );
2097                 if ( code ) {
2098                         Debug( LDAP_DEBUG_ANY,
2099                                 "memberof_initialize: register_at #%d failed\n",
2100                                 i, 0, 0 );
2101                         return code;
2102                 }
2103         }
2104
2105         memberof.on_bi.bi_type = "memberof";
2106
2107         memberof.on_bi.bi_db_init = memberof_db_init;
2108         memberof.on_bi.bi_db_open = memberof_db_open;
2109         memberof.on_bi.bi_db_destroy = memberof_db_destroy;
2110
2111         memberof.on_bi.bi_op_add = memberof_op_add;
2112         memberof.on_bi.bi_op_delete = memberof_op_delete;
2113         memberof.on_bi.bi_op_modify = memberof_op_modify;
2114         memberof.on_bi.bi_op_modrdn = memberof_op_modrdn;
2115
2116         memberof.on_bi.bi_cf_ocs = mo_ocs;
2117
2118         code = config_register_schema( mo_cfg, mo_ocs );
2119         if ( code ) return code;
2120
2121         return overlay_register( &memberof );
2122 }
2123
2124 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2125 int
2126 init_module( int argc, char *argv[] )
2127 {
2128         return memberof_initialize();
2129 }
2130 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2131
2132 #endif /* SLAPD_OVER_MEMBEROF */