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 AttributeDescription     *ad_member;
 134 static AttributeDescription     *ad_memberOf;
 135
 136 static ObjectClass                      *oc_group;
 137
 138 static slap_overinst            memberof;
 139
 140 typedef struct memberof_t {
 141         struct berval           mo_dn;
 142         struct berval           mo_ndn;
 143
 144         ObjectClass             *mo_oc_group;
 145         AttributeDescription    *mo_ad_member;
 146         AttributeDescription    *mo_ad_memberof;
 147
 148         struct berval           mo_groupFilterstr;
 149         AttributeAssertion      mo_groupAVA;
 150         Filter                  mo_groupFilter;
 151
 152         struct berval           mo_memberFilterstr;
 153         Filter                  mo_memberFilter;
 154
 155         unsigned                mo_flags;
 156 #define MEMBEROF_NONE           0x00U
 157 #define MEMBEROF_FDANGLING_DROP 0x01U
 158 #define MEMBEROF_FDANGLING_ERROR        0x02U
 159 #define MEMBEROF_FDANGLING_MASK (MEMBEROF_FDANGLING_DROP|MEMBEROF_FDANGLING_ERROR)
 160 #define MEMBEROF_FREFINT        0x04U
 161 #define MEMBEROF_FREVERSE       0x08U
 162
 163         ber_int_t               mo_dangling_err;
 164
 165 #define MEMBEROF_CHK(mo,f) \
 166         (((mo)->mo_flags & (f)) == (f))
 167 #define MEMBEROF_DANGLING_CHECK(mo) \
 168         ((mo)->mo_flags & MEMBEROF_FDANGLING_MASK)
 169 #define MEMBEROF_DANGLING_DROP(mo) \
 170         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_DROP)
 171 #define MEMBEROF_DANGLING_ERROR(mo) \
 172         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_ERROR)
 173 #define MEMBEROF_REFINT(mo) \
 174         MEMBEROF_CHK((mo),MEMBEROF_FREFINT)
 175 #define MEMBEROF_REVERSE(mo) \
 176         MEMBEROF_CHK((mo),MEMBEROF_FREVERSE)
 177 } memberof_t;
 178
 179 typedef enum memberof_is_t {
 180         MEMBEROF_IS_NONE = 0x00,
 181         MEMBEROF_IS_GROUP = 0x01,
 182         MEMBEROF_IS_MEMBER = 0x02,
 183         MEMBEROF_IS_BOTH = (MEMBEROF_IS_GROUP|MEMBEROF_IS_MEMBER)
 184 } memberof_is_t;
 185
 186 typedef struct memberof_cookie_t {
 187         AttributeDescription    *ad;
 188         BerVarray               vals;
 189         int                     foundit;
 190 } memberof_cookie_t;
 191
 192 typedef struct memberof_cbinfo_t {
 193         slap_overinst *on;
 194         BerVarray member;
 195         BerVarray memberof;
 196         memberof_is_t what;
 197 } memberof_cbinfo_t;
 198
 199 static void
 200 memberof_set_backend( Operation *op_target, Operation *op, slap_overinst *on )
 201 {
 202     BackendInfo *bi = op->o_bd->bd_info;
 203
 204     if ( bi->bi_type == memberof.on_bi.bi_type )
 205         op_target->o_bd->bd_info = (BackendInfo *)on->on_info;
 206 }
 207
 208 static int
 209 memberof_isGroupOrMember_cb( Operation *op, SlapReply *rs )
 210 {
 211         if ( rs->sr_type == REP_SEARCH ) {
 212                 memberof_cookie_t       *mc;
 213
 214                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 215                 mc->foundit = 1;
 216         }
 217
 218         return 0;
 219 }
 220
 221 /*
 222  * callback for internal search that saves the member attribute values
 223  * of groups being deleted.
 224  */
 225 static int
 226 memberof_saveMember_cb( Operation *op, SlapReply *rs )
 227 {
 228         if ( rs->sr_type == REP_SEARCH ) {
 229                 memberof_cookie_t       *mc;
 230                 Attribute               *a;
 231
 232                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 233                 mc->foundit = 1;
 234
 235                 assert( rs->sr_entry != NULL );
 236                 assert( rs->sr_entry->e_attrs != NULL );
 237
 238                 a = attr_find( rs->sr_entry->e_attrs, mc->ad );
 239                 if ( a != NULL ) {
 240                         ber_bvarray_dup_x( &mc->vals, a->a_nvals, op->o_tmpmemctx );
 241
 242                         assert( attr_find( a->a_next, mc->ad ) == NULL );
 243                 }
 244         }
 245
 246         return 0;
 247 }
 248
 249 /*
 250  * the delete hook performs an internal search that saves the member
 251  * attribute values of groups being deleted.
 252  */
 253 static int
 254 memberof_isGroupOrMember( Operation *op, memberof_cbinfo_t *mci )
 255 {
 256         slap_overinst           *on = mci->on;
 257         memberof_t              *mo = (memberof_t *)on->on_bi.bi_private;
 258
 259         Operation               op2 = *op;
 260         slap_callback           cb = { 0 };
 261         BackendInfo     *bi = op->o_bd->bd_info;
 262         AttributeName           an[ 2 ];
 263
 264         memberof_is_t           iswhat = MEMBEROF_IS_NONE;
 265         memberof_cookie_t       mc;
 266
 267         assert( mci->what != MEMBEROF_IS_NONE );
 268
 269         cb.sc_private = &mc;
 270         if ( op->o_tag == LDAP_REQ_DELETE ) {
 271                 cb.sc_response = memberof_saveMember_cb;
 272
 273         } else {
 274                 cb.sc_response = memberof_isGroupOrMember_cb;
 275         }
 276
 277         op2.o_tag = LDAP_REQ_SEARCH;
 278         op2.o_callback = &cb;
 279         op2.o_dn = op->o_bd->be_rootdn;
 280         op2.o_ndn = op->o_bd->be_rootndn;
 281
 282         op2.ors_scope = LDAP_SCOPE_BASE;
 283         op2.ors_deref = LDAP_DEREF_NEVER;
 284         BER_BVZERO( &an[ 1 ].an_name );
 285         op2.ors_attrs = an;
 286         op2.ors_attrsonly = 0;
 287         op2.ors_limit = NULL;
 288         op2.ors_slimit = 1;
 289         op2.ors_tlimit = SLAP_NO_LIMIT;
 290
 291         if ( mci->what & MEMBEROF_IS_GROUP ) {
 292                 SlapReply       rs2 = { REP_RESULT };
 293
 294                 mc.ad = mo->mo_ad_member;
 295                 mc.foundit = 0;
 296                 mc.vals = NULL;
 297                 an[ 0 ].an_desc = mo->mo_ad_member;
 298                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 299                 op2.ors_filterstr = mo->mo_groupFilterstr;
 300                 op2.ors_filter = &mo->mo_groupFilter;
 301                 op2.o_do_not_cache = 1; /* internal search, don't log */
 302
 303                 memberof_set_backend( &op2, op, on );
 304                 (void)op->o_bd->be_search( &op2, &rs2 );
 305                 op2.o_bd->bd_info = bi;
 306
 307                 if ( mc.foundit ) {
 308                         iswhat |= MEMBEROF_IS_GROUP;
 309                         if ( mc.vals ) mci->member = mc.vals;
 310
 311                 }
 312         }
 313
 314         if ( mci->what & MEMBEROF_IS_MEMBER ) {
 315                 SlapReply       rs2 = { REP_RESULT };
 316
 317                 mc.ad = mo->mo_ad_memberof;
 318                 mc.foundit = 0;
 319                 mc.vals = NULL;
 320                 an[ 0 ].an_desc = mo->mo_ad_memberof;
 321                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 322                 op2.ors_filterstr = mo->mo_memberFilterstr;
 323                 op2.ors_filter = &mo->mo_memberFilter;
 324                 op2.o_do_not_cache = 1; /* internal search, don't log */
 325
 326                 memberof_set_backend( &op2, op, on );
 327                 (void)op->o_bd->be_search( &op2, &rs2 );
 328                 op2.o_bd->bd_info = bi;
 329
 330                 if ( mc.foundit ) {
 331                         iswhat |= MEMBEROF_IS_MEMBER;
 332                         if ( mc.vals ) mci->memberof = mc.vals;
 333
 334                 }
 335         }
 336
 337         mci->what = iswhat;
 338
 339         return LDAP_SUCCESS;
 340 }
 341
 342 /*
 343  * response callback that adds memberof values when a group is modified.
 344  */
 345 static void
 346 memberof_value_modify(
 347         Operation               *op,
 348         struct berval           *ndn,
 349         AttributeDescription    *ad,
 350         struct berval           *old_dn,
 351         struct berval           *old_ndn,
 352         struct berval           *new_dn,
 353         struct berval           *new_ndn )
 354 {
 355         memberof_cbinfo_t *mci = op->o_callback->sc_private;
 356         slap_overinst   *on = mci->on;
 357         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 358
 359         Operation       op2 = *op;
 360         unsigned long opid = op->o_opid;
 361         SlapReply       rs2 = { REP_RESULT };
 362         slap_callback   cb = { NULL, slap_null_cb, NULL, NULL };
 363         Modifications   mod[ 2 ] = { { { 0 } } }, *ml;
 364         struct berval   values[ 4 ], nvalues[ 4 ];
 365         int             mcnt = 0;
 366
 367         op2.o_tag = LDAP_REQ_MODIFY;
 368
 369         op2.o_req_dn = *ndn;
 370         op2.o_req_ndn = *ndn;
 371
 372         op2.o_callback = &cb;
 373         op2.o_dn = op->o_bd->be_rootdn;
 374         op2.o_ndn = op->o_bd->be_rootndn;
 375         op2.orm_modlist = NULL;
 376
 377         /* Internal ops, never replicate these */
 378         op2.o_opid = 0;         /* shared with op, saved above */
 379         op2.orm_no_opattrs = 1;
 380         op2.o_dont_replicate = 1;
 381
 382         if ( !BER_BVISNULL( &mo->mo_ndn ) ) {
 383                 ml = &mod[ mcnt ];
 384                 ml->sml_numvals = 1;
 385                 ml->sml_values = &values[ 0 ];
 386                 ml->sml_values[ 0 ] = mo->mo_dn;
 387                 BER_BVZERO( &ml->sml_values[ 1 ] );
 388                 ml->sml_nvalues = &nvalues[ 0 ];
 389                 ml->sml_nvalues[ 0 ] = mo->mo_ndn;
 390                 BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 391                 ml->sml_desc = slap_schema.si_ad_modifiersName;
 392                 ml->sml_type = ml->sml_desc->ad_cname;
 393                 ml->sml_op = LDAP_MOD_REPLACE;
 394                 ml->sml_flags = SLAP_MOD_INTERNAL;
 395                 ml->sml_next = op2.orm_modlist;
 396                 op2.orm_modlist = ml;
 397
 398                 mcnt++;
 399         }
 400
 401         ml = &mod[ mcnt ];
 402         ml->sml_numvals = 1;
 403         ml->sml_values = &values[ 2 ];
 404         BER_BVZERO( &ml->sml_values[ 1 ] );
 405         ml->sml_nvalues = &nvalues[ 2 ];
 406         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 407         ml->sml_desc = ad;
 408         ml->sml_type = ml->sml_desc->ad_cname;
 409         ml->sml_flags = SLAP_MOD_INTERNAL;
 410         ml->sml_next = op2.orm_modlist;
 411         op2.orm_modlist = ml;
 412
 413         if ( new_ndn != NULL ) {
 414                 BackendInfo *bi = op2.o_bd->bd_info;
 415                 OpExtra oex;
 416
 417                 assert( !BER_BVISNULL( new_dn ) );
 418                 assert( !BER_BVISNULL( new_ndn ) );
 419
 420                 ml = &mod[ mcnt ];
 421                 ml->sml_op = LDAP_MOD_ADD;
 422
 423                 ml->sml_values[ 0 ] = *new_dn;
 424                 ml->sml_nvalues[ 0 ] = *new_ndn;
 425
 426                 oex.oe_key = (void *)&memberof;
 427                 LDAP_SLIST_INSERT_HEAD(&op2.o_extra, &oex, oe_next);
 428                 memberof_set_backend( &op2, op, on );
 429                 (void)op->o_bd->be_modify( &op2, &rs2 );
 430                 op2.o_bd->bd_info = bi;
 431                 LDAP_SLIST_REMOVE(&op2.o_extra, &oex, OpExtra, oe_next);
 432                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 433                         char buf[ SLAP_TEXT_BUFLEN ];
 434                         snprintf( buf, sizeof( buf ),
 435                                 "memberof_value_modify DN=\"%s\" add %s=\"%s\" failed err=%d",
 436                                 op2.o_req_dn.bv_val, ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err );
 437                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 438                                 op->o_log_prefix, buf, 0 );
 439                 }
 440
 441                 assert( op2.orm_modlist == &mod[ mcnt ] );
 442                 assert( mcnt == 0 || op2.orm_modlist->sml_next == &mod[ 0 ] );
 443                 ml = op2.orm_modlist->sml_next;
 444                 if ( mcnt == 1 ) {
 445                         assert( ml == &mod[ 0 ] );
 446                         ml = ml->sml_next;
 447                 }
 448                 if ( ml != NULL ) {
 449                         slap_mods_free( ml, 1 );
 450                 }
 451
 452                 mod[ 0 ].sml_next = NULL;
 453         }
 454
 455         if ( old_ndn != NULL ) {
 456                 BackendInfo *bi = op2.o_bd->bd_info;
 457                 OpExtra oex;
 458
 459                 assert( !BER_BVISNULL( old_dn ) );
 460                 assert( !BER_BVISNULL( old_ndn ) );
 461
 462                 ml = &mod[ mcnt ];
 463                 ml->sml_op = LDAP_MOD_DELETE;
 464
 465                 ml->sml_values[ 0 ] = *old_dn;
 466                 ml->sml_nvalues[ 0 ] = *old_ndn;
 467
 468                 oex.oe_key = (void *)&memberof;
 469                 LDAP_SLIST_INSERT_HEAD(&op2.o_extra, &oex, oe_next);
 470                 memberof_set_backend( &op2, op, on );
 471                 (void)op->o_bd->be_modify( &op2, &rs2 );
 472                 op2.o_bd->bd_info = bi;
 473                 LDAP_SLIST_REMOVE(&op2.o_extra, &oex, OpExtra, oe_next);
 474                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 475                         char buf[ SLAP_TEXT_BUFLEN ];
 476                         snprintf( buf, sizeof( buf ),
 477                                 "memberof_value_modify DN=\"%s\" delete %s=\"%s\" failed err=%d",
 478                                 op2.o_req_dn.bv_val, ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err );
 479                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 480                                 op->o_log_prefix, buf, 0 );
 481                 }
 482
 483                 assert( op2.orm_modlist == &mod[ mcnt ] );
 484                 ml = op2.orm_modlist->sml_next;
 485                 if ( mcnt == 1 ) {
 486                         assert( ml == &mod[ 0 ] );
 487                         ml = ml->sml_next;
 488                 }
 489                 if ( ml != NULL ) {
 490                         slap_mods_free( ml, 1 );
 491                 }
 492         }
 493         /* restore original opid */
 494         op->o_opid = opid;
 495
 496         /* FIXME: if old_group_ndn doesn't exist, both delete __and__
 497          * add will fail; better split in two operations, although
 498          * not optimal in terms of performance.  At least it would
 499          * move towards self-repairing capabilities. */
 500 }
 501
 502 static int
 503 memberof_cleanup( Operation *op, SlapReply *rs )
 504 {
 505         slap_callback *sc = op->o_callback;
 506         memberof_cbinfo_t *mci = sc->sc_private;
 507
 508         op->o_callback = sc->sc_next;
 509         if ( mci->memberof )
 510                 ber_bvarray_free_x( mci->memberof, op->o_tmpmemctx );
 511         if ( mci->member )
 512                 ber_bvarray_free_x( mci->member, op->o_tmpmemctx );
 513         op->o_tmpfree( sc, op->o_tmpmemctx );
 514         return 0;
 515 }
 516
 517 static int memberof_res_add( Operation *op, SlapReply *rs );
 518 static int memberof_res_delete( Operation *op, SlapReply *rs );
 519 static int memberof_res_modify( Operation *op, SlapReply *rs );
 520 static int memberof_res_modrdn( Operation *op, SlapReply *rs );
 521
 522 static int
 523 memberof_op_add( Operation *op, SlapReply *rs )
 524 {
 525         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 526         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 527
 528         Attribute       **ap, **map = NULL;
 529         int             rc = SLAP_CB_CONTINUE;
 530         int             i;
 531         struct berval   save_dn, save_ndn;
 532         slap_callback *sc;
 533         memberof_cbinfo_t *mci;
 534         OpExtra         *oex;
 535
 536         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 537                 if ( oex->oe_key == (void *)&memberof )
 538                         return SLAP_CB_CONTINUE;
 539         }
 540
 541         if ( op->ora_e->e_attrs == NULL ) {
 542                 /* FIXME: global overlay; need to deal with */
 543                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 544                         "consistency checks not implemented when overlay "
 545                         "is instantiated as global.\n",
 546                         op->o_log_prefix, op->o_req_dn.bv_val, 0 );
 547                 return SLAP_CB_CONTINUE;
 548         }
 549
 550         if ( MEMBEROF_REVERSE( mo ) ) {
 551                 for ( ap = &op->ora_e->e_attrs; *ap; ap = &(*ap)->a_next ) {
 552                         Attribute       *a = *ap;
 553
 554                         if ( a->a_desc == mo->mo_ad_memberof ) {
 555                                 map = ap;
 556                                 break;
 557                         }
 558                 }
 559         }
 560
 561         save_dn = op->o_dn;
 562         save_ndn = op->o_ndn;
 563
 564         if ( MEMBEROF_DANGLING_CHECK( mo )
 565                         && !get_relax( op )
 566                         && is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) )
 567         {
 568                 op->o_dn = op->o_bd->be_rootdn;
 569                 op->o_ndn = op->o_bd->be_rootndn;
 570                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 571
 572                 for ( ap = &op->ora_e->e_attrs; *ap; ) {
 573                         Attribute       *a = *ap;
 574
 575                         if ( !is_ad_subtype( a->a_desc, mo->mo_ad_member ) ) {
 576                                 ap = &a->a_next;
 577                                 continue;
 578                         }
 579
 580                         assert( a->a_nvals != NULL );
 581
 582                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 583                                 Entry           *e = NULL;
 584
 585                                 /* ITS#6670 Ignore member pointing to this entry */
 586                                 if ( dn_match( &a->a_nvals[i], &save_ndn ))
 587                                         continue;
 588
 589                                 rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 590                                                 NULL, NULL, 0, &e );
 591                                 if ( rc == LDAP_SUCCESS ) {
 592                                         be_entry_release_r( op, e );
 593                                         continue;
 594                                 }
 595
 596                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 597                                         rc = rs->sr_err = mo->mo_dangling_err;
 598                                         rs->sr_text = "adding non-existing object "
 599                                                 "as group member";
 600                                         send_ldap_result( op, rs );
 601                                         goto done;
 602                                 }
 603
 604                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 605                                         int     j;
 606
 607                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 608                                                 "member=\"%s\" does not exist (stripping...)\n",
 609                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 610                                                 a->a_vals[ i ].bv_val );
 611
 612                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 613                                         ber_memfree( a->a_vals[ i ].bv_val );
 614                                         BER_BVZERO( &a->a_vals[ i ] );
 615                                         if ( a->a_nvals != a->a_vals ) {
 616                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 617                                                 BER_BVZERO( &a->a_nvals[ i ] );
 618                                         }
 619                                         a->a_numvals--;
 620                                         if ( j - i == 1 ) {
 621                                                 break;
 622                                         }
 623
 624                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 625                                                 sizeof( struct berval ) * ( j - i ) );
 626                                         if ( a->a_nvals != a->a_vals ) {
 627                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 628                                                         sizeof( struct berval ) * ( j - i ) );
 629                                         }
 630                                         i--;
 631                                 }
 632                         }
 633
 634                         /* If all values have been removed,
 635                          * remove the attribute itself. */
 636                         if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 637                                 *ap = a->a_next;
 638                                 attr_free( a );
 639
 640                         } else {
 641                                 ap = &a->a_next;
 642                         }
 643                 }
 644                 op->o_dn = save_dn;
 645                 op->o_ndn = save_ndn;
 646                 op->o_bd->bd_info = (BackendInfo *)on;
 647         }
 648
 649         if ( map != NULL ) {
 650                 Attribute               *a = *map;
 651                 AccessControlState      acl_state = ACL_STATE_INIT;
 652
 653                 for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 654                         Entry           *e;
 655
 656                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 657                         /* access is checked with the original identity */
 658                         rc = access_allowed( op, op->ora_e, mo->mo_ad_memberof,
 659                                         &a->a_nvals[ i ], ACL_WADD,
 660                                         &acl_state );
 661                         if ( rc == 0 ) {
 662                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 663                                 rs->sr_text = NULL;
 664                                 send_ldap_result( op, rs );
 665                                 goto done;
 666                         }
 667                         /* ITS#6670 Ignore member pointing to this entry */
 668                         if ( dn_match( &a->a_nvals[i], &save_ndn ))
 669                                 continue;
 670
 671                         rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 672                                         NULL, NULL, 0, &e );
 673                         op->o_bd->bd_info = (BackendInfo *)on;
 674                         if ( rc != LDAP_SUCCESS ) {
 675                                 if ( get_relax( op ) ) {
 676                                         continue;
 677                                 }
 678
 679                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 680                                         rc = rs->sr_err = mo->mo_dangling_err;
 681                                         rs->sr_text = "adding non-existing object "
 682                                                 "as memberof";
 683                                         send_ldap_result( op, rs );
 684                                         goto done;
 685                                 }
 686
 687                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 688                                         int     j;
 689
 690                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 691                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 692                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 693                                                 a->a_nvals[ i ].bv_val );
 694
 695                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 696                                         ber_memfree( a->a_vals[ i ].bv_val );
 697                                         BER_BVZERO( &a->a_vals[ i ] );
 698                                         if ( a->a_nvals != a->a_vals ) {
 699                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 700                                                 BER_BVZERO( &a->a_nvals[ i ] );
 701                                         }
 702                                         if ( j - i == 1 ) {
 703                                                 break;
 704                                         }
 705
 706                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 707                                                 sizeof( struct berval ) * ( j - i ) );
 708                                         if ( a->a_nvals != a->a_vals ) {
 709                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 710                                                         sizeof( struct berval ) * ( j - i ) );
 711                                         }
 712                                         i--;
 713                                 }
 714
 715                                 continue;
 716                         }
 717
 718                         /* access is checked with the original identity */
 719                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 720                         rc = access_allowed( op, e, mo->mo_ad_member,
 721                                         &op->o_req_ndn, ACL_WADD, NULL );
 722                         be_entry_release_r( op, e );
 723                         op->o_bd->bd_info = (BackendInfo *)on;
 724
 725                         if ( !rc ) {
 726                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 727                                 rs->sr_text = "insufficient access to object referenced by memberof";
 728                                 send_ldap_result( op, rs );
 729                                 goto done;
 730                         }
 731                 }
 732
 733                 if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 734                         *map = a->a_next;
 735                         attr_free( a );
 736                 }
 737         }
 738
 739         rc = SLAP_CB_CONTINUE;
 740
 741         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
 742         sc->sc_private = sc+1;
 743         sc->sc_response = memberof_res_add;
 744         sc->sc_cleanup = memberof_cleanup;
 745         sc->sc_writewait = 0;
 746         mci = sc->sc_private;
 747         mci->on = on;
 748         mci->member = NULL;
 749         mci->memberof = NULL;
 750         sc->sc_next = op->o_callback;
 751         op->o_callback = sc;
 752
 753 done:;
 754         op->o_dn = save_dn;
 755         op->o_ndn = save_ndn;
 756         op->o_bd->bd_info = (BackendInfo *)on;
 757
 758         return rc;
 759 }
 760
 761 static int
 762 memberof_op_delete( Operation *op, SlapReply *rs )
 763 {
 764         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 765         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 766
 767         slap_callback *sc;
 768         memberof_cbinfo_t *mci;
 769         OpExtra         *oex;
 770
 771         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 772                 if ( oex->oe_key == (void *)&memberof )
 773                         return SLAP_CB_CONTINUE;
 774         }
 775
 776         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
 777         sc->sc_private = sc+1;
 778         sc->sc_response = memberof_res_delete;
 779         sc->sc_cleanup = memberof_cleanup;
 780         sc->sc_writewait = 0;
 781         mci = sc->sc_private;
 782         mci->on = on;
 783         mci->member = NULL;
 784         mci->memberof = NULL;
 785         mci->what = MEMBEROF_IS_GROUP;
 786         if ( MEMBEROF_REFINT( mo ) ) {
 787                 mci->what = MEMBEROF_IS_BOTH;
 788         }
 789
 790         memberof_isGroupOrMember( op, mci );
 791
 792         sc->sc_next = op->o_callback;
 793         op->o_callback = sc;
 794
 795         return SLAP_CB_CONTINUE;
 796 }
 797
 798 static int
 799 memberof_op_modify( Operation *op, SlapReply *rs )
 800 {
 801         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 802         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 803
 804         Modifications   **mlp, **mmlp = NULL;
 805         int             rc = SLAP_CB_CONTINUE, save_member = 0;
 806         struct berval   save_dn, save_ndn;
 807         slap_callback *sc;
 808         memberof_cbinfo_t *mci, mcis;
 809         OpExtra         *oex;
 810
 811         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 812                 if ( oex->oe_key == (void *)&memberof )
 813                         return SLAP_CB_CONTINUE;
 814         }
 815
 816         if ( MEMBEROF_REVERSE( mo ) ) {
 817                 for ( mlp = &op->orm_modlist; *mlp; mlp = &(*mlp)->sml_next ) {
 818                         Modifications   *ml = *mlp;
 819
 820                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
 821                                 mmlp = mlp;
 822                                 break;
 823                         }
 824                 }
 825         }
 826
 827         save_dn = op->o_dn;
 828         save_ndn = op->o_ndn;
 829         mcis.on = on;
 830         mcis.what = MEMBEROF_IS_GROUP;
 831
 832         if ( memberof_isGroupOrMember( op, &mcis ) == LDAP_SUCCESS
 833                 && ( mcis.what & MEMBEROF_IS_GROUP ) )
 834         {
 835                 Modifications *ml;
 836
 837                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 838                         if ( ml->sml_desc == mo->mo_ad_member ) {
 839                                 switch ( ml->sml_op ) {
 840                                 case LDAP_MOD_DELETE:
 841                                 case LDAP_MOD_REPLACE:
 842                                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
 843                                         save_member = 1;
 844                                         break;
 845                                 }
 846                         }
 847                 }
 848
 849
 850                 if ( MEMBEROF_DANGLING_CHECK( mo )
 851                                 && !get_relax( op ) )
 852                 {
 853                         op->o_dn = op->o_bd->be_rootdn;
 854                         op->o_ndn = op->o_bd->be_rootndn;
 855                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 856
 857                         assert( op->orm_modlist != NULL );
 858
 859                         for ( mlp = &op->orm_modlist; *mlp; ) {
 860                                 Modifications   *ml = *mlp;
 861                                 int             i;
 862
 863                                 if ( !is_ad_subtype( ml->sml_desc, mo->mo_ad_member ) ) {
 864                                         mlp = &ml->sml_next;
 865                                         continue;
 866                                 }
 867
 868                                 switch ( ml->sml_op ) {
 869                                 case LDAP_MOD_DELETE:
 870                                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
 871                                         /* we don't care about cancellations: if the value
 872                                          * exists, fine; if it doesn't, we let the underlying
 873                                          * database fail as appropriate; */
 874                                         mlp = &ml->sml_next;
 875                                         break;
 876
 877                                 case LDAP_MOD_REPLACE:
 878                                         /* Handle this just like a delete (see above) */
 879                                         if ( !ml->sml_values ) {
 880                                                 mlp = &ml->sml_next;
 881                                                 break;
 882                                         }
 883
 884                                 case LDAP_MOD_ADD:
 885                                 case SLAP_MOD_SOFTADD: /* ITS#7487 */
 886                                 case SLAP_MOD_ADD_IF_NOT_PRESENT: /* ITS#7487 */
 887                                         /* NOTE: right now, the attributeType we use
 888                                          * for member must have a normalized value */
 889                                         assert( ml->sml_nvalues != NULL );
 890
 891                                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 892                                                 Entry           *e;
 893
 894                                                 /* ITS#6670 Ignore member pointing to this entry */
 895                                                 if ( dn_match( &ml->sml_nvalues[i], &save_ndn ))
 896                                                         continue;
 897
 898                                                 if ( be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 899                                                                 NULL, NULL, 0, &e ) == LDAP_SUCCESS )
 900                                                 {
 901                                                         be_entry_release_r( op, e );
 902                                                         continue;
 903                                                 }
 904
 905                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 906                                                         rc = rs->sr_err = mo->mo_dangling_err;
 907                                                         rs->sr_text = "adding non-existing object "
 908                                                                 "as group member";
 909                                                         send_ldap_result( op, rs );
 910                                                         goto done;
 911                                                 }
 912
 913                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 914                                                         int     j;
 915
 916                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 917                                                                 "member=\"%s\" does not exist (stripping...)\n",
 918                                                                 op->o_log_prefix, op->o_req_dn.bv_val,
 919                                                                 ml->sml_nvalues[ i ].bv_val );
 920
 921                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 922                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 923                                                         BER_BVZERO( &ml->sml_values[ i ] );
 924                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
 925                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
 926                                                         ml->sml_numvals--;
 927                                                         if ( j - i == 1 ) {
 928                                                                 break;
 929                                                         }
 930
 931                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 932                                                                 sizeof( struct berval ) * ( j - i ) );
 933                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 934                                                                 sizeof( struct berval ) * ( j - i ) );
 935                                                         i--;
 936                                                 }
 937                                         }
 938
 939                                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 940                                                 *mlp = ml->sml_next;
 941                                                 slap_mod_free( &ml->sml_mod, 0 );
 942                                                 free( ml );
 943
 944                                         } else {
 945                                                 mlp = &ml->sml_next;
 946                                         }
 947
 948                                         break;
 949
 950                                 default:
 951                                         assert( 0 );
 952                                 }
 953                         }
 954                 }
 955         }
 956
 957         if ( mmlp != NULL ) {
 958                 Modifications   *ml = *mmlp;
 959                 int             i;
 960                 Entry           *target;
 961
 962                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 963                 rc = be_entry_get_rw( op, &op->o_req_ndn,
 964                                 NULL, NULL, 0, &target );
 965                 op->o_bd->bd_info = (BackendInfo *)on;
 966                 if ( rc != LDAP_SUCCESS ) {
 967                         rc = rs->sr_err = LDAP_NO_SUCH_OBJECT;
 968                         send_ldap_result( op, rs );
 969                         goto done;
 970                 }
 971
 972                 switch ( ml->sml_op ) {
 973                 case LDAP_MOD_DELETE:
 974                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
 975                         if ( ml->sml_nvalues != NULL ) {
 976                                 AccessControlState      acl_state = ACL_STATE_INIT;
 977
 978                                 for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 979                                         Entry           *e;
 980
 981                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 982                                         /* access is checked with the original identity */
 983                                         rc = access_allowed( op, target,
 984                                                         mo->mo_ad_memberof,
 985                                                         &ml->sml_nvalues[ i ],
 986                                                         ACL_WDEL,
 987                                                         &acl_state );
 988                                         if ( rc == 0 ) {
 989                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 990                                                 rs->sr_text = NULL;
 991                                                 send_ldap_result( op, rs );
 992                                                 goto done2;
 993                                         }
 994
 995                                         rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 996                                                         NULL, NULL, 0, &e );
 997                                         op->o_bd->bd_info = (BackendInfo *)on;
 998                                         if ( rc != LDAP_SUCCESS ) {
 999                                                 if ( get_relax( op ) ) {
1000                                                         continue;
1001                                                 }
1002
1003                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
1004                                                         rc = rs->sr_err = mo->mo_dangling_err;
1005                                                         rs->sr_text = "deleting non-existing object "
1006                                                                 "as memberof";
1007                                                         send_ldap_result( op, rs );
1008                                                         goto done2;
1009                                                 }
1010
1011                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1012                                                         int     j;
1013
1014                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1015                                                                 "memberof=\"%s\" does not exist (stripping...)\n",
1016                                                                 op->o_log_prefix, op->o_req_ndn.bv_val,
1017                                                                 ml->sml_nvalues[ i ].bv_val );
1018
1019                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1020                                                         ber_memfree( ml->sml_values[ i ].bv_val );
1021                                                         BER_BVZERO( &ml->sml_values[ i ] );
1022                                                         if ( ml->sml_nvalues != ml->sml_values ) {
1023                                                                 ber_memfree( ml->sml_nvalues[ i ].bv_val );
1024                                                                 BER_BVZERO( &ml->sml_nvalues[ i ] );
1025                                                         }
1026                                                         ml->sml_numvals--;
1027                                                         if ( j - i == 1 ) {
1028                                                                 break;
1029                                                         }
1030
1031                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1032                                                                 sizeof( struct berval ) * ( j - i ) );
1033                                                         if ( ml->sml_nvalues != ml->sml_values ) {
1034                                                                 AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1035                                                                         sizeof( struct berval ) * ( j - i ) );
1036                                                         }
1037                                                         i--;
1038                                                 }
1039
1040                                                 continue;
1041                                         }
1042
1043                                         /* access is checked with the original identity */
1044                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1045                                         rc = access_allowed( op, e, mo->mo_ad_member,
1046                                                         &op->o_req_ndn,
1047                                                         ACL_WDEL, NULL );
1048                                         be_entry_release_r( op, e );
1049                                         op->o_bd->bd_info = (BackendInfo *)on;
1050
1051                                         if ( !rc ) {
1052                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1053                                                 rs->sr_text = "insufficient access to object referenced by memberof";
1054                                                 send_ldap_result( op, rs );
1055                                                 goto done;
1056                                         }
1057                                 }
1058
1059                                 if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1060                                         *mmlp = ml->sml_next;
1061                                         slap_mod_free( &ml->sml_mod, 0 );
1062                                         free( ml );
1063                                 }
1064
1065                                 break;
1066                         }
1067                         /* fall thru */
1068
1069                 case LDAP_MOD_REPLACE:
1070
1071                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1072                         /* access is checked with the original identity */
1073                         rc = access_allowed( op, target,
1074                                         mo->mo_ad_memberof,
1075                                         NULL,
1076                                         ACL_WDEL, NULL );
1077                         op->o_bd->bd_info = (BackendInfo *)on;
1078                         if ( rc == 0 ) {
1079                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1080                                 rs->sr_text = NULL;
1081                                 send_ldap_result( op, rs );
1082                                 goto done2;
1083                         }
1084
1085                         if ( ml->sml_op == LDAP_MOD_DELETE || ml->sml_op == SLAP_MOD_SOFTDEL || !ml->sml_values ) {
1086                                 break;
1087                         }
1088                         /* fall thru */
1089
1090                 case LDAP_MOD_ADD:
1091                 case SLAP_MOD_SOFTADD: /* ITS#7487 */
1092                 case SLAP_MOD_ADD_IF_NOT_PRESENT: /* ITS#7487 */
1093                         {
1094                         AccessControlState      acl_state = ACL_STATE_INIT;
1095
1096                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
1097                                 Entry           *e;
1098
1099                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1100                                 /* access is checked with the original identity */
1101                                 rc = access_allowed( op, target,
1102                                                 mo->mo_ad_memberof,
1103                                                 &ml->sml_nvalues[ i ],
1104                                                 ACL_WADD,
1105                                                 &acl_state );
1106                                 if ( rc == 0 ) {
1107                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1108                                         rs->sr_text = NULL;
1109                                         send_ldap_result( op, rs );
1110                                         goto done2;
1111                                 }
1112
1113                                 /* ITS#6670 Ignore member pointing to this entry */
1114                                 if ( dn_match( &ml->sml_nvalues[i], &save_ndn ))
1115                                         continue;
1116
1117                                 rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
1118                                                 NULL, NULL, 0, &e );
1119                                 op->o_bd->bd_info = (BackendInfo *)on;
1120                                 if ( rc != LDAP_SUCCESS ) {
1121                                         if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
1122                                                 rc = rs->sr_err = mo->mo_dangling_err;
1123                                                 rs->sr_text = "adding non-existing object "
1124                                                         "as memberof";
1125                                                 send_ldap_result( op, rs );
1126                                                 goto done2;
1127                                         }
1128
1129                                         if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1130                                                 int     j;
1131
1132                                                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1133                                                         "memberof=\"%s\" does not exist (stripping...)\n",
1134                                                         op->o_log_prefix, op->o_req_ndn.bv_val,
1135                                                         ml->sml_nvalues[ i ].bv_val );
1136
1137                                                 for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1138                                                 ber_memfree( ml->sml_values[ i ].bv_val );
1139                                                 BER_BVZERO( &ml->sml_values[ i ] );
1140                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1141                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
1142                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
1143                                                 }
1144                                                 ml->sml_numvals--;
1145                                                 if ( j - i == 1 ) {
1146                                                         break;
1147                                                 }
1148
1149                                                 AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1150                                                         sizeof( struct berval ) * ( j - i ) );
1151                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1152                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1153                                                                 sizeof( struct berval ) * ( j - i ) );
1154                                                 }
1155                                                 i--;
1156                                         }
1157
1158                                         continue;
1159                                 }
1160
1161                                 /* access is checked with the original identity */
1162                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1163                                 rc = access_allowed( op, e, mo->mo_ad_member,
1164                                                 &op->o_req_ndn,
1165                                                 ACL_WDEL, NULL );
1166                                 be_entry_release_r( op, e );
1167                                 op->o_bd->bd_info = (BackendInfo *)on;
1168
1169                                 if ( !rc ) {
1170                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1171                                         rs->sr_text = "insufficient access to object referenced by memberof";
1172                                         send_ldap_result( op, rs );
1173                                         goto done;
1174                                 }
1175                         }
1176
1177                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1178                                 *mmlp = ml->sml_next;
1179                                 slap_mod_free( &ml->sml_mod, 0 );
1180                                 free( ml );
1181                         }
1182
1183                         } break;
1184
1185                 default:
1186                         assert( 0 );
1187                 }
1188
1189 done2:;
1190                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1191                 be_entry_release_r( op, target );
1192                 op->o_bd->bd_info = (BackendInfo *)on;
1193         }
1194
1195         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
1196         sc->sc_private = sc+1;
1197         sc->sc_response = memberof_res_modify;
1198         sc->sc_cleanup = memberof_cleanup;
1199         sc->sc_writewait = 0;
1200         mci = sc->sc_private;
1201         mci->on = on;
1202         mci->member = NULL;
1203         mci->memberof = NULL;
1204         mci->what = mcis.what;
1205
1206         if ( save_member ) {
1207                 op->o_dn = op->o_bd->be_rootdn;
1208                 op->o_ndn = op->o_bd->be_rootndn;
1209                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1210                 rc = backend_attribute( op, NULL, &op->o_req_ndn,
1211                                 mo->mo_ad_member, &mci->member, ACL_READ );
1212                 op->o_bd->bd_info = (BackendInfo *)on;
1213         }
1214
1215         sc->sc_next = op->o_callback;
1216         op->o_callback = sc;
1217
1218         rc = SLAP_CB_CONTINUE;
1219
1220 done:;
1221         op->o_dn = save_dn;
1222         op->o_ndn = save_ndn;
1223         op->o_bd->bd_info = (BackendInfo *)on;
1224
1225         return rc;
1226 }
1227
1228 static int
1229 memberof_op_modrdn( Operation *op, SlapReply *rs )
1230 {
1231         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1232         slap_callback *sc;
1233         memberof_cbinfo_t *mci;
1234         OpExtra         *oex;
1235
1236         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
1237                 if ( oex->oe_key == (void *)&memberof )
1238                         return SLAP_CB_CONTINUE;
1239         }
1240
1241         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
1242         sc->sc_private = sc+1;
1243         sc->sc_response = memberof_res_modrdn;
1244         sc->sc_cleanup = memberof_cleanup;
1245         sc->sc_writewait = 0;
1246         mci = sc->sc_private;
1247         mci->on = on;
1248         mci->member = NULL;
1249         mci->memberof = NULL;
1250
1251         sc->sc_next = op->o_callback;
1252         op->o_callback = sc;
1253
1254         return SLAP_CB_CONTINUE;
1255 }
1256
1257 /*
1258  * response callback that adds memberof values when a group is added.
1259  */
1260 static int
1261 memberof_res_add( Operation *op, SlapReply *rs )
1262 {
1263         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1264         slap_overinst   *on = mci->on;
1265         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1266
1267         int             i;
1268
1269         if ( rs->sr_err != LDAP_SUCCESS ) {
1270                 return SLAP_CB_CONTINUE;
1271         }
1272
1273         if ( MEMBEROF_REVERSE( mo ) ) {
1274                 Attribute       *ma;
1275
1276                 ma = attr_find( op->ora_e->e_attrs, mo->mo_ad_memberof );
1277                 if ( ma != NULL ) {
1278                         /* relax is required to allow to add
1279                          * a non-existing member */
1280                         op->o_relax = SLAP_CONTROL_CRITICAL;
1281
1282                         for ( i = 0; !BER_BVISNULL( &ma->a_nvals[ i ] ); i++ ) {
1283
1284                                 /* ITS#6670 Ignore member pointing to this entry */
1285                                 if ( dn_match( &ma->a_nvals[i], &op->o_req_ndn ))
1286                                         continue;
1287
1288                                 /* the modification is attempted
1289                                  * with the original identity */
1290                                 memberof_value_modify( op,
1291                                         &ma->a_nvals[ i ], mo->mo_ad_member,
1292                                         NULL, NULL, &op->o_req_dn, &op->o_req_ndn );
1293                         }
1294                 }
1295         }
1296
1297         if ( is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) ) {
1298                 Attribute       *a;
1299
1300                 for ( a = attrs_find( op->ora_e->e_attrs, mo->mo_ad_member );
1301                                 a != NULL;
1302                                 a = attrs_find( a->a_next, mo->mo_ad_member ) )
1303                 {
1304                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
1305                                 /* ITS#6670 Ignore member pointing to this entry */
1306                                 if ( dn_match( &a->a_nvals[i], &op->o_req_ndn ))
1307                                         continue;
1308
1309                                 memberof_value_modify( op,
1310                                                 &a->a_nvals[ i ],
1311                                                 mo->mo_ad_memberof,
1312                                                 NULL, NULL,
1313                                                 &op->o_req_dn,
1314                                                 &op->o_req_ndn );
1315                         }
1316                 }
1317         }
1318
1319         return SLAP_CB_CONTINUE;
1320 }
1321
1322 /*
1323  * response callback that deletes memberof values when a group is deleted.
1324  */
1325 static int
1326 memberof_res_delete( Operation *op, SlapReply *rs )
1327 {
1328         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1329         slap_overinst   *on = mci->on;
1330         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1331
1332         BerVarray       vals;
1333         int             i;
1334
1335         if ( rs->sr_err != LDAP_SUCCESS ) {
1336                 return SLAP_CB_CONTINUE;
1337         }
1338
1339         vals = mci->member;
1340         if ( vals != NULL ) {
1341                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1342                         memberof_value_modify( op,
1343                                         &vals[ i ], mo->mo_ad_memberof,
1344                                         &op->o_req_dn, &op->o_req_ndn,
1345                                         NULL, NULL );
1346                 }
1347         }
1348
1349         if ( MEMBEROF_REFINT( mo ) ) {
1350                 vals = mci->memberof;
1351                 if ( vals != NULL ) {
1352                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1353                                 memberof_value_modify( op,
1354                                                 &vals[ i ], mo->mo_ad_member,
1355                                                 &op->o_req_dn, &op->o_req_ndn,
1356                                                 NULL, NULL );
1357                         }
1358                 }
1359         }
1360
1361         return SLAP_CB_CONTINUE;
1362 }
1363
1364 /*
1365  * response callback that adds/deletes memberof values when a group
1366  * is modified.
1367  */
1368 static int
1369 memberof_res_modify( Operation *op, SlapReply *rs )
1370 {
1371         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1372         slap_overinst   *on = mci->on;
1373         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1374
1375         int             i, rc;
1376         Modifications   *ml, *mml = NULL;
1377         BerVarray       vals;
1378
1379         if ( rs->sr_err != LDAP_SUCCESS ) {
1380                 return SLAP_CB_CONTINUE;
1381         }
1382
1383         if ( MEMBEROF_REVERSE( mo ) ) {
1384                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1385                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
1386                                 mml = ml;
1387                                 break;
1388                         }
1389                 }
1390         }
1391
1392         if ( mml != NULL ) {
1393                 BerVarray       vals = mml->sml_nvalues;
1394
1395                 switch ( mml->sml_op ) {
1396                 case LDAP_MOD_DELETE:
1397                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
1398                         if ( vals != NULL ) {
1399                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1400                                         memberof_value_modify( op,
1401                                                         &vals[ i ], mo->mo_ad_member,
1402                                                         &op->o_req_dn, &op->o_req_ndn,
1403                                                         NULL, NULL );
1404                                 }
1405                                 break;
1406                         }
1407                         /* fall thru */
1408
1409                 case LDAP_MOD_REPLACE:
1410                         /* delete all ... */
1411                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1412                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
1413                                         mo->mo_ad_memberof, &vals, ACL_READ );
1414                         op->o_bd->bd_info = (BackendInfo *)on;
1415                         if ( rc == LDAP_SUCCESS ) {
1416                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1417                                         memberof_value_modify( op,
1418                                                         &vals[ i ], mo->mo_ad_member,
1419                                                         &op->o_req_dn, &op->o_req_ndn,
1420                                                         NULL, NULL );
1421                                 }
1422                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
1423                         }
1424
1425                         if ( ml->sml_op == LDAP_MOD_DELETE || !mml->sml_values ) {
1426                                 break;
1427                         }
1428                         /* fall thru */
1429
1430                 case LDAP_MOD_ADD:
1431                 case SLAP_MOD_SOFTADD: /* ITS#7487 */
1432                 case SLAP_MOD_ADD_IF_NOT_PRESENT: /* ITS#7487 */
1433                         assert( vals != NULL );
1434
1435                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1436                                 memberof_value_modify( op,
1437                                                 &vals[ i ], mo->mo_ad_member,
1438                                                 NULL, NULL,
1439                                                 &op->o_req_dn, &op->o_req_ndn );
1440                         }
1441                         break;
1442
1443                 default:
1444                         assert( 0 );
1445                 }
1446         }
1447
1448         if ( mci->what & MEMBEROF_IS_GROUP )
1449         {
1450                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1451                         if ( ml->sml_desc != mo->mo_ad_member ) {
1452                                 continue;
1453                         }
1454
1455                         switch ( ml->sml_op ) {
1456                         case LDAP_MOD_DELETE:
1457                         case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
1458                                 vals = ml->sml_nvalues;
1459                                 if ( vals != NULL ) {
1460                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1461                                                 memberof_value_modify( op,
1462                                                                 &vals[ i ], mo->mo_ad_memberof,
1463                                                                 &op->o_req_dn, &op->o_req_ndn,
1464                                                                 NULL, NULL );
1465                                         }
1466                                         break;
1467                                 }
1468                                 /* fall thru */
1469
1470                         case LDAP_MOD_REPLACE:
1471                                 vals = mci->member;
1472
1473                                 /* delete all ... */
1474                                 if ( vals != NULL ) {
1475                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1476                                                 memberof_value_modify( op,
1477                                                                 &vals[ i ], mo->mo_ad_memberof,
1478                                                                 &op->o_req_dn, &op->o_req_ndn,
1479                                                                 NULL, NULL );
1480                                         }
1481                                 }
1482
1483                                 if ( ml->sml_op == LDAP_MOD_DELETE || ml->sml_op == SLAP_MOD_SOFTDEL || !ml->sml_values ) {
1484                                         break;
1485                                 }
1486                                 /* fall thru */
1487
1488                         case LDAP_MOD_ADD:
1489                         case SLAP_MOD_SOFTADD: /* ITS#7487 */
1490                         case SLAP_MOD_ADD_IF_NOT_PRESENT : /* ITS#7487 */
1491                                 assert( ml->sml_nvalues != NULL );
1492                                 vals = ml->sml_nvalues;
1493                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1494                                         memberof_value_modify( op,
1495                                                         &vals[ i ], mo->mo_ad_memberof,
1496                                                         NULL, NULL,
1497                                                         &op->o_req_dn, &op->o_req_ndn );
1498                                 }
1499                                 break;
1500
1501                         default:
1502                                 assert( 0 );
1503                         }
1504                 }
1505         }
1506
1507         return SLAP_CB_CONTINUE;
1508 }
1509
1510 /*
1511  * response callback that adds/deletes member values when a group member
1512  * is renamed.
1513  */
1514 static int
1515 memberof_res_modrdn( Operation *op, SlapReply *rs )
1516 {
1517         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1518         slap_overinst   *on = mci->on;
1519         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1520
1521         struct berval   newPDN, newDN = BER_BVNULL, newPNDN, newNDN;
1522         int             i, rc;
1523         BerVarray       vals;
1524
1525         struct berval   save_dn, save_ndn;
1526
1527         if ( rs->sr_err != LDAP_SUCCESS ) {
1528                 return SLAP_CB_CONTINUE;
1529         }
1530
1531         mci->what = MEMBEROF_IS_GROUP;
1532         if ( MEMBEROF_REFINT( mo ) ) {
1533                 mci->what |= MEMBEROF_IS_MEMBER;
1534         }
1535
1536         if ( op->orr_nnewSup ) {
1537                 newPNDN = *op->orr_nnewSup;
1538
1539         } else {
1540                 dnParent( &op->o_req_ndn, &newPNDN );
1541         }
1542
1543         build_new_dn( &newNDN, &newPNDN, &op->orr_nnewrdn, op->o_tmpmemctx );
1544
1545         save_dn = op->o_req_dn;
1546         save_ndn = op->o_req_ndn;
1547
1548         op->o_req_dn = newNDN;
1549         op->o_req_ndn = newNDN;
1550         rc = memberof_isGroupOrMember( op, mci );
1551         op->o_req_dn = save_dn;
1552         op->o_req_ndn = save_ndn;
1553
1554         if ( rc != LDAP_SUCCESS || mci->what == MEMBEROF_IS_NONE ) {
1555                 goto done;
1556         }
1557
1558         if ( op->orr_newSup ) {
1559                 newPDN = *op->orr_newSup;
1560
1561         } else {
1562                 dnParent( &op->o_req_dn, &newPDN );
1563         }
1564
1565         build_new_dn( &newDN, &newPDN, &op->orr_newrdn, op->o_tmpmemctx );
1566
1567         if ( mci->what & MEMBEROF_IS_GROUP ) {
1568                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1569                 rc = backend_attribute( op, NULL, &newNDN,
1570                                 mo->mo_ad_member, &vals, ACL_READ );
1571                 op->o_bd->bd_info = (BackendInfo *)on;
1572
1573                 if ( rc == LDAP_SUCCESS ) {
1574                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1575                                 memberof_value_modify( op,
1576                                                 &vals[ i ], mo->mo_ad_memberof,
1577                                                 &op->o_req_dn, &op->o_req_ndn,
1578                                                 &newDN, &newNDN );
1579                         }
1580                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1581                 }
1582         }
1583
1584         if ( MEMBEROF_REFINT( mo ) && ( mci->what & MEMBEROF_IS_MEMBER ) ) {
1585                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1586                 rc = backend_attribute( op, NULL, &newNDN,
1587                                 mo->mo_ad_memberof, &vals, ACL_READ );
1588                 op->o_bd->bd_info = (BackendInfo *)on;
1589
1590                 if ( rc == LDAP_SUCCESS ) {
1591                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1592                                 memberof_value_modify( op,
1593                                                 &vals[ i ], mo->mo_ad_member,
1594                                                 &op->o_req_dn, &op->o_req_ndn,
1595                                                 &newDN, &newNDN );
1596                         }
1597                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1598                 }
1599         }
1600
1601 done:;
1602         if ( !BER_BVISNULL( &newDN ) ) {
1603                 op->o_tmpfree( newDN.bv_val, op->o_tmpmemctx );
1604         }
1605         op->o_tmpfree( newNDN.bv_val, op->o_tmpmemctx );
1606
1607         return SLAP_CB_CONTINUE;
1608 }
1609
1610
1611 static int
1612 memberof_db_init(
1613         BackendDB       *be,
1614         ConfigReply     *cr )
1615 {
1616         slap_overinst   *on = (slap_overinst *)be->bd_info;
1617         memberof_t              *mo;
1618         const char              *text = NULL;
1619         int rc;
1620
1621         mo = (memberof_t *)ch_calloc( 1, sizeof( memberof_t ) );
1622
1623         /* safe default */
1624         mo->mo_dangling_err = LDAP_CONSTRAINT_VIOLATION;
1625
1626         if ( !ad_memberOf ) {
1627                 rc = slap_str2ad( SLAPD_MEMBEROF_ATTR, &ad_memberOf, &text );
1628                 if ( rc != LDAP_SUCCESS ) {
1629                         Debug( LDAP_DEBUG_ANY, "memberof_db_init: "
1630                                         "unable to find attribute=\"%s\": %s (%d)\n",
1631                                         SLAPD_MEMBEROF_ATTR, text, rc );
1632                         return rc;
1633                 }
1634         }
1635
1636         if ( !ad_member ) {
1637                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &ad_member, &text );
1638                 if ( rc != LDAP_SUCCESS ) {
1639                         Debug( LDAP_DEBUG_ANY, "memberof_db_init: "
1640                                         "unable to find attribute=\"%s\": %s (%d)\n",
1641                                         SLAPD_GROUP_ATTR, text, rc );
1642                         return rc;
1643                 }
1644         }
1645
1646         if ( !oc_group ) {
1647                 oc_group = oc_find( SLAPD_GROUP_CLASS );
1648                 if ( oc_group == NULL ) {
1649                         Debug( LDAP_DEBUG_ANY,
1650                                         "memberof_db_init: "
1651                                         "unable to find objectClass=\"%s\"\n",
1652                                         SLAPD_GROUP_CLASS, 0, 0 );
1653                         return 1;
1654                 }
1655         }
1656
1657         on->on_bi.bi_private = (void *)mo;
1658
1659         return 0;
1660 }
1661
1662 enum {
1663         MO_DN = 1,
1664         MO_DANGLING,
1665         MO_REFINT,
1666         MO_GROUP_OC,
1667         MO_MEMBER_AD,
1668         MO_MEMBER_OF_AD,
1669 #if 0
1670         MO_REVERSE,
1671 #endif
1672
1673         MO_DANGLING_ERROR,
1674
1675         MO_LAST
1676 };
1677
1678 static ConfigDriver mo_cf_gen;
1679
1680 #define OID             "1.3.6.1.4.1.7136.2.666.4"
1681 #define OIDAT           OID ".1.1"
1682 #define OIDCFGAT        OID ".1.2"
1683 #define OIDOC           OID ".2.1"
1684 #define OIDCFGOC        OID ".2.2"
1685
1686
1687 static ConfigTable mo_cfg[] = {
1688         { "memberof-dn", "modifiersName",
1689                 2, 2, 0, ARG_MAGIC|ARG_DN|MO_DN, mo_cf_gen,
1690                 "( OLcfgOvAt:18.0 NAME 'olcMemberOfDN' "
1691                         "DESC 'DN to be used as modifiersName' "
1692                         "SYNTAX OMsDN SINGLE-VALUE )",
1693                 NULL, NULL },
1694
1695         { "memberof-dangling", "ignore|drop|error",
1696                 2, 2, 0, ARG_MAGIC|MO_DANGLING, mo_cf_gen,
1697                 "( OLcfgOvAt:18.1 NAME 'olcMemberOfDangling' "
1698                         "DESC 'Behavior with respect to dangling members, "
1699                                 "constrained to ignore, drop, error' "
1700                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1701                 NULL, NULL },
1702
1703         { "memberof-refint", "true|FALSE",
1704                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REFINT, mo_cf_gen,
1705                 "( OLcfgOvAt:18.2 NAME 'olcMemberOfRefInt' "
1706                         "DESC 'Take care of referential integrity' "
1707                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1708                 NULL, NULL },
1709
1710         { "memberof-group-oc", "objectClass",
1711                 2, 2, 0, ARG_MAGIC|MO_GROUP_OC, mo_cf_gen,
1712                 "( OLcfgOvAt:18.3 NAME 'olcMemberOfGroupOC' "
1713                         "DESC 'Group objectClass' "
1714                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1715                 NULL, NULL },
1716
1717         { "memberof-member-ad", "member attribute",
1718                 2, 2, 0, ARG_MAGIC|ARG_ATDESC|MO_MEMBER_AD, mo_cf_gen,
1719                 "( OLcfgOvAt:18.4 NAME 'olcMemberOfMemberAD' "
1720                         "DESC 'member attribute' "
1721                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1722                 NULL, NULL },
1723
1724         { "memberof-memberof-ad", "memberOf attribute",
1725                 2, 2, 0, ARG_MAGIC|ARG_ATDESC|MO_MEMBER_OF_AD, mo_cf_gen,
1726                 "( OLcfgOvAt:18.5 NAME 'olcMemberOfMemberOfAD' "
1727                         "DESC 'memberOf attribute' "
1728                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1729                 NULL, NULL },
1730
1731 #if 0
1732         { "memberof-reverse", "true|FALSE",
1733                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REVERSE, mo_cf_gen,
1734                 "( OLcfgOvAt:18.6 NAME 'olcMemberOfReverse' "
1735                         "DESC 'Take care of referential integrity "
1736                                 "also when directly modifying memberOf' "
1737                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1738                 NULL, NULL },
1739 #endif
1740
1741         { "memberof-dangling-error", "error code",
1742                 2, 2, 0, ARG_MAGIC|MO_DANGLING_ERROR, mo_cf_gen,
1743                 "( OLcfgOvAt:18.7 NAME 'olcMemberOfDanglingError' "
1744                         "DESC 'Error code returned in case of dangling back reference' "
1745                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1746                 NULL, NULL },
1747
1748         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1749 };
1750
1751 static ConfigOCs mo_ocs[] = {
1752         { "( OLcfgOvOc:18.1 "
1753                 "NAME 'olcMemberOf' "
1754                 "DESC 'Member-of configuration' "
1755                 "SUP olcOverlayConfig "
1756                 "MAY ( "
1757                         "olcMemberOfDN "
1758                         "$ olcMemberOfDangling "
1759                         "$ olcMemberOfDanglingError"
1760                         "$ olcMemberOfRefInt "
1761                         "$ olcMemberOfGroupOC "
1762                         "$ olcMemberOfMemberAD "
1763                         "$ olcMemberOfMemberOfAD "
1764 #if 0
1765                         "$ olcMemberOfReverse "
1766 #endif
1767                         ") "
1768                 ")",
1769                 Cft_Overlay, mo_cfg, NULL, NULL },
1770         { NULL, 0, NULL }
1771 };
1772
1773 static slap_verbmasks dangling_mode[] = {
1774         { BER_BVC( "ignore" ),          MEMBEROF_NONE },
1775         { BER_BVC( "drop" ),            MEMBEROF_FDANGLING_DROP },
1776         { BER_BVC( "error" ),           MEMBEROF_FDANGLING_ERROR },
1777         { BER_BVNULL,                   0 }
1778 };
1779
1780 static int
1781 memberof_make_group_filter( memberof_t *mo )
1782 {
1783         char            *ptr;
1784
1785         if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1786                 ch_free( mo->mo_groupFilterstr.bv_val );
1787         }
1788
1789         mo->mo_groupFilter.f_choice = LDAP_FILTER_EQUALITY;
1790         mo->mo_groupFilter.f_ava = &mo->mo_groupAVA;
1791
1792         mo->mo_groupFilter.f_av_desc = slap_schema.si_ad_objectClass;
1793         mo->mo_groupFilter.f_av_value = mo->mo_oc_group->soc_cname;
1794
1795         mo->mo_groupFilterstr.bv_len = STRLENOF( "(=)" )
1796                 + slap_schema.si_ad_objectClass->ad_cname.bv_len
1797                 + mo->mo_oc_group->soc_cname.bv_len;
1798         ptr = mo->mo_groupFilterstr.bv_val = ch_malloc( mo->mo_groupFilterstr.bv_len + 1 );
1799         *ptr++ = '(';
1800         ptr = lutil_strcopy( ptr, slap_schema.si_ad_objectClass->ad_cname.bv_val );
1801         *ptr++ = '=';
1802         ptr = lutil_strcopy( ptr, mo->mo_oc_group->soc_cname.bv_val );
1803         *ptr++ = ')';
1804         *ptr = '\0';
1805
1806         return 0;
1807 }
1808
1809 static int
1810 memberof_make_member_filter( memberof_t *mo )
1811 {
1812         char            *ptr;
1813
1814         if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1815                 ch_free( mo->mo_memberFilterstr.bv_val );
1816         }
1817
1818         mo->mo_memberFilter.f_choice = LDAP_FILTER_PRESENT;
1819         mo->mo_memberFilter.f_desc = mo->mo_ad_memberof;
1820
1821         mo->mo_memberFilterstr.bv_len = STRLENOF( "(=*)" )
1822                 + mo->mo_ad_memberof->ad_cname.bv_len;
1823         ptr = mo->mo_memberFilterstr.bv_val = ch_malloc( mo->mo_memberFilterstr.bv_len + 1 );
1824         *ptr++ = '(';
1825         ptr = lutil_strcopy( ptr, mo->mo_ad_memberof->ad_cname.bv_val );
1826         ptr = lutil_strcopy( ptr, "=*)" );
1827
1828         return 0;
1829 }
1830
1831 static int
1832 mo_cf_gen( ConfigArgs *c )
1833 {
1834         slap_overinst   *on = (slap_overinst *)c->bi;
1835         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1836
1837         int             i, rc = 0;
1838
1839         if ( c->op == SLAP_CONFIG_EMIT ) {
1840                 struct berval bv = BER_BVNULL;
1841
1842                 switch( c->type ) {
1843                 case MO_DN:
1844                         if ( mo->mo_dn.bv_val != NULL) {
1845                                 value_add_one( &c->rvalue_vals, &mo->mo_dn );
1846                                 value_add_one( &c->rvalue_nvals, &mo->mo_ndn );
1847                         }
1848                         break;
1849
1850                 case MO_DANGLING:
1851                         enum_to_verb( dangling_mode, (mo->mo_flags & MEMBEROF_FDANGLING_MASK), &bv );
1852                         if ( BER_BVISNULL( &bv ) ) {
1853                                 /* there's something wrong... */
1854                                 assert( 0 );
1855                                 rc = 1;
1856
1857                         } else {
1858                                 value_add_one( &c->rvalue_vals, &bv );
1859                         }
1860                         break;
1861
1862                 case MO_DANGLING_ERROR:
1863                         if ( mo->mo_flags & MEMBEROF_FDANGLING_ERROR ) {
1864                                 char buf[ SLAP_TEXT_BUFLEN ];
1865                                 enum_to_verb( slap_ldap_response_code, mo->mo_dangling_err, &bv );
1866                                 if ( BER_BVISNULL( &bv ) ) {
1867                                         bv.bv_len = snprintf( buf, sizeof( buf ), "0x%x", mo->mo_dangling_err );
1868                                         if ( bv.bv_len < sizeof( buf ) ) {
1869                                                 bv.bv_val = buf;
1870                                         } else {
1871                                                 rc = 1;
1872                                                 break;
1873                                         }
1874                                 }
1875                                 value_add_one( &c->rvalue_vals, &bv );
1876                         } else {
1877                                 rc = 1;
1878                         }
1879                         break;
1880
1881                 case MO_REFINT:
1882                         c->value_int = MEMBEROF_REFINT( mo );
1883                         break;
1884
1885 #if 0
1886                 case MO_REVERSE:
1887                         c->value_int = MEMBEROF_REVERSE( mo );
1888                         break;
1889 #endif
1890
1891                 case MO_GROUP_OC:
1892                         if ( mo->mo_oc_group != NULL ){
1893                                 value_add_one( &c->rvalue_vals, &mo->mo_oc_group->soc_cname );
1894                         }
1895                         break;
1896
1897                 case MO_MEMBER_AD:
1898                         if ( mo->mo_ad_member != NULL ){
1899                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_member->ad_cname );
1900                         }
1901                         break;
1902
1903                 case MO_MEMBER_OF_AD:
1904                         if ( mo->mo_ad_memberof != NULL ){
1905                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_memberof->ad_cname );
1906                         }
1907                         break;
1908
1909                 default:
1910                         assert( 0 );
1911                         return 1;
1912                 }
1913
1914                 return rc;
1915
1916         } else if ( c->op == LDAP_MOD_DELETE ) {
1917                 switch( c->type ) {
1918                 case MO_DN:
1919                         if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1920                                 ber_memfree( mo->mo_dn.bv_val );
1921                                 ber_memfree( mo->mo_ndn.bv_val );
1922                                 BER_BVZERO( &mo->mo_dn );
1923                                 BER_BVZERO( &mo->mo_ndn );
1924                         }
1925                         break;
1926
1927                 case MO_DANGLING:
1928                         mo->mo_flags &= ~MEMBEROF_FDANGLING_MASK;
1929                         break;
1930
1931                 case MO_DANGLING_ERROR:
1932                         mo->mo_dangling_err = LDAP_CONSTRAINT_VIOLATION;
1933                         break;
1934
1935                 case MO_REFINT:
1936                         mo->mo_flags &= ~MEMBEROF_FREFINT;
1937                         break;
1938
1939 #if 0
1940                 case MO_REVERSE:
1941                         mo->mo_flags &= ~MEMBEROF_FREVERSE;
1942                         break;
1943 #endif
1944
1945                 case MO_GROUP_OC:
1946                         mo->mo_oc_group = oc_group;
1947                         memberof_make_group_filter( mo );
1948                         break;
1949
1950                 case MO_MEMBER_AD:
1951                         mo->mo_ad_member = ad_member;
1952                         break;
1953
1954                 case MO_MEMBER_OF_AD:
1955                         mo->mo_ad_memberof = ad_memberOf;
1956                         memberof_make_member_filter( mo );
1957                         break;
1958
1959                 default:
1960                         assert( 0 );
1961                         return 1;
1962                 }
1963
1964         } else {
1965                 switch( c->type ) {
1966                 case MO_DN:
1967                         if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1968                                 ber_memfree( mo->mo_dn.bv_val );
1969                                 ber_memfree( mo->mo_ndn.bv_val );
1970                         }
1971                         mo->mo_dn = c->value_dn;
1972                         mo->mo_ndn = c->value_ndn;
1973                         break;
1974
1975                 case MO_DANGLING:
1976                         i = verb_to_mask( c->argv[ 1 ], dangling_mode );
1977                         if ( BER_BVISNULL( &dangling_mode[ i ].word ) ) {
1978                                 return 1;
1979                         }
1980
1981                         mo->mo_flags &= ~MEMBEROF_FDANGLING_MASK;
1982                         mo->mo_flags |= dangling_mode[ i ].mask;
1983                         break;
1984
1985                 case MO_DANGLING_ERROR:
1986                         i = verb_to_mask( c->argv[ 1 ], slap_ldap_response_code );
1987                         if ( !BER_BVISNULL( &slap_ldap_response_code[ i ].word ) ) {
1988                                 mo->mo_dangling_err = slap_ldap_response_code[ i ].mask;
1989                         } else if ( lutil_atoix( &mo->mo_dangling_err, c->argv[ 1 ], 0 ) ) {
1990                                 return 1;
1991                         }
1992                         break;
1993
1994                 case MO_REFINT:
1995                         if ( c->value_int ) {
1996                                 mo->mo_flags |= MEMBEROF_FREFINT;
1997
1998                         } else {
1999                                 mo->mo_flags &= ~MEMBEROF_FREFINT;
2000                         }
2001                         break;
2002
2003 #if 0
2004                 case MO_REVERSE:
2005                         if ( c->value_int ) {
2006                                 mo->mo_flags |= MEMBEROF_FREVERSE;
2007
2008                         } else {
2009                                 mo->mo_flags &= ~MEMBEROF_FREVERSE;
2010                         }
2011                         break;
2012 #endif
2013
2014                 case MO_GROUP_OC: {
2015                         ObjectClass     *oc = NULL;
2016
2017                         oc = oc_find( c->argv[ 1 ] );
2018                         if ( oc == NULL ) {
2019                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
2020                                         "unable to find group objectClass=\"%s\"",
2021                                         c->argv[ 1 ] );
2022                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
2023                                         c->log, c->cr_msg, 0 );
2024                                 return 1;
2025                         }
2026
2027                         mo->mo_oc_group = oc;
2028                         memberof_make_group_filter( mo );
2029                         } break;
2030
2031                 case MO_MEMBER_AD: {
2032                         AttributeDescription    *ad = c->value_ad;
2033
2034                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
2035                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
2036                         {
2037                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
2038                                         "member attribute=\"%s\" must either "
2039                                         "have DN (%s) or nameUID (%s) syntax",
2040                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
2041                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
2042                                         c->log, c->cr_msg, 0 );
2043                                 return 1;
2044                         }
2045
2046                         mo->mo_ad_member = ad;
2047                         } break;
2048
2049                 case MO_MEMBER_OF_AD: {
2050                         AttributeDescription    *ad = c->value_ad;
2051
2052                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
2053                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
2054                         {
2055                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
2056                                         "memberof attribute=\"%s\" must either "
2057                                         "have DN (%s) or nameUID (%s) syntax",
2058                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
2059                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
2060                                         c->log, c->cr_msg, 0 );
2061                                 return 1;
2062                         }
2063
2064                         mo->mo_ad_memberof = ad;
2065                         memberof_make_member_filter( mo );
2066                         } break;
2067
2068                 default:
2069                         assert( 0 );
2070                         return 1;
2071                 }
2072         }
2073
2074         return 0;
2075 }
2076
2077 static int
2078 memberof_db_open(
2079         BackendDB       *be,
2080         ConfigReply     *cr )
2081 {
2082         slap_overinst   *on = (slap_overinst *)be->bd_info;
2083         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
2084
2085         int             rc;
2086
2087         if ( !mo->mo_ad_memberof ) {
2088                 mo->mo_ad_memberof = ad_memberOf;
2089         }
2090
2091         if ( ! mo->mo_ad_member ) {
2092                 mo->mo_ad_member = ad_member;
2093         }
2094
2095         if ( ! mo->mo_oc_group ) {
2096                 mo->mo_oc_group = oc_group;
2097         }
2098
2099         if ( BER_BVISNULL( &mo->mo_dn ) && !BER_BVISNULL( &be->be_rootdn ) ) {
2100                 ber_dupbv( &mo->mo_dn, &be->be_rootdn );
2101                 ber_dupbv( &mo->mo_ndn, &be->be_rootndn );
2102         }
2103
2104         if ( BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
2105                 memberof_make_group_filter( mo );
2106         }
2107
2108         if ( BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
2109                 memberof_make_member_filter( mo );
2110         }
2111
2112         return 0;
2113 }
2114
2115 static int
2116 memberof_db_destroy(
2117         BackendDB       *be,
2118         ConfigReply     *cr )
2119 {
2120         slap_overinst   *on = (slap_overinst *)be->bd_info;
2121         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
2122
2123         if ( mo ) {
2124                 if ( !BER_BVISNULL( &mo->mo_dn ) ) {
2125                         ber_memfree( mo->mo_dn.bv_val );
2126                         ber_memfree( mo->mo_ndn.bv_val );
2127                 }
2128
2129                 if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
2130                         ber_memfree( mo->mo_groupFilterstr.bv_val );
2131                 }
2132
2133                 if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
2134                         ber_memfree( mo->mo_memberFilterstr.bv_val );
2135                 }
2136
2137                 ber_memfree( mo );
2138         }
2139
2140         return 0;
2141 }
2142
2143 static struct {
2144         char    *desc;
2145         AttributeDescription **adp;
2146 } as[] = {
2147         { "( 1.2.840.113556.1.2.102 "
2148                 "NAME 'memberOf' "
2149                 "DESC 'Group that the entry belongs to' "
2150                 "SYNTAX '1.3.6.1.4.1.1466.115.121.1.12' "
2151                 "EQUALITY distinguishedNameMatch "      /* added */
2152                 "USAGE dSAOperation "                   /* added; questioned */
2153                 /* "NO-USER-MODIFICATION " */           /* add? */
2154                 "X-ORIGIN 'iPlanet Delegated Administrator' )",
2155                 &ad_memberOf },
2156         { NULL }
2157 };
2158
2159 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2160 static
2161 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2162 int
2163 memberof_initialize( void )
2164 {
2165         int                     code, i;
2166
2167         for ( i = 0; as[ i ].desc != NULL; i++ ) {
2168                 code = register_at( as[ i ].desc, as[ i ].adp, 0 );
2169                 if ( code ) {
2170                         Debug( LDAP_DEBUG_ANY,
2171                                 "memberof_initialize: register_at #%d failed\n",
2172                                 i, 0, 0 );
2173                         return code;
2174                 }
2175         }
2176
2177         memberof.on_bi.bi_type = "memberof";
2178
2179         memberof.on_bi.bi_db_init = memberof_db_init;
2180         memberof.on_bi.bi_db_open = memberof_db_open;
2181         memberof.on_bi.bi_db_destroy = memberof_db_destroy;
2182
2183         memberof.on_bi.bi_op_add = memberof_op_add;
2184         memberof.on_bi.bi_op_delete = memberof_op_delete;
2185         memberof.on_bi.bi_op_modify = memberof_op_modify;
2186         memberof.on_bi.bi_op_modrdn = memberof_op_modrdn;
2187
2188         memberof.on_bi.bi_cf_ocs = mo_ocs;
2189
2190         code = config_register_schema( mo_cfg, mo_ocs );
2191         if ( code ) return code;
2192
2193         return overlay_register( &memberof );
2194 }
2195
2196 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2197 int
2198 init_module( int argc, char *argv[] )
2199 {
2200         return memberof_initialize();
2201 }
2202 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2203
2204 #endif /* SLAPD_OVER_MEMBEROF */