git.sur5r.net Git - openldap/blob - servers/slapd/overlays/memberof.c

   1 /* memberof.c - back-reference for group membership */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2005-2007 Pierangelo Masarati <ando@sys-net.it>
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGMENTS:
  17  * This work was initially developed by Pierangelo Masarati for inclusion
  18  * in OpenLDAP Software, sponsored by SysNet s.r.l.
  19  */
  20
  21 #include "portable.h"
  22
  23 #ifdef SLAPD_OVER_MEMBEROF
  24
  25 #include <stdio.h>
  26
  27 #include "ac/string.h"
  28 #include "ac/socket.h"
  29
  30 #include "slap.h"
  31 #include "config.h"
  32 #include "lutil.h"
  33
  34 /*
  35  *      Glossary:
  36  *
  37  *              GROUP           a group object (an entry with GROUP_OC
  38  *                              objectClass)
  39  *              MEMBER          a member object (an entry whose DN is
  40  *                              listed as MEMBER_AT value of a GROUP)
  41  *              GROUP_OC        the objectClass of the group object
  42  *                              (default: groupOfNames)
  43  *              MEMBER_AT       the membership attribute, DN-valued;
  44  *                              note: nameAndOptionalUID is tolerated
  45  *                              as soon as the optionalUID is absent
  46  *                              (default: member)
  47  *              MEMBER_OF       reverse membership attribute
  48  *                              (default: memberOf)
  49  *
  50  *      - add:
  51  *              - if the entry that is being added is a GROUP,
  52  *                the MEMBER_AT defined as values of the add operation
  53  *                get the MEMBER_OF value directly from the request.
  54  *
  55  *                if configured to do so, the MEMBER objects do not exist,
  56  *                and no relax control is issued, either:
  57  *                      - fail
  58  *                      - drop non-existing members
  59  *                (by default: don't muck with values)
  60  *
  61  *              - if (configured to do so,) the referenced GROUP exists,
  62  *                the relax control is set and the user has
  63  *                "manage" privileges, allow to add MEMBER_OF values to
  64  *                generic entries.
  65  *
  66  *      - modify:
  67  *              - if the entry being modified is a GROUP_OC and the
  68  *                MEMBER_AT attribute is modified, the MEMBER_OF value
  69  *                of the (existing) MEMBER_AT entries that are affected
  70  *                is modified according to the request:
  71  *                      - if a MEMBER is removed from the group,
  72  *                        delete the corresponding MEMBER_OF
  73  *                      - if a MEMBER is added to a group,
  74  *                        add the corresponding MEMBER_OF
  75  *
  76  *                We need to determine, from the database, if it is
  77  *                a GROUP_OC, and we need to check, from the
  78  *                modification list, if the MEMBER_AT attribute is being
  79  *                affected, and what MEMBER_AT values are affected.
  80  *
  81  *                if configured to do so, the entries corresponding to
  82  *                the MEMBER_AT values do not exist, and no relax control
  83  *                is issued, either:
  84  *                      - fail
  85  *                      - drop non-existing members
  86  *                (by default: don't muck with values)
  87  *
  88  *              - if configured to do so, the referenced GROUP exists,
  89  *                (the relax control is set) and the user has
  90  *                "manage" privileges, allow to add MEMBER_OF values to
  91  *                generic entries; the change is NOT automatically reflected
  92  *                in the MEMBER attribute of the GROUP referenced
  93  *                by the value of MEMBER_OF; a separate modification,
  94  *                with or without relax control, needs to be performed.
  95  *
  96  *      - modrdn:
  97  *              - if the entry being renamed is a GROUP, the MEMBER_OF
  98  *                value of the (existing) MEMBER objects is modified
  99  *                accordingly based on the newDN of the GROUP.
 100  *
 101  *                We need to determine, from the database, if it is
 102  *                a GROUP; the list of MEMBER objects is obtained from
 103  *                the database.
 104  *
 105  *                Non-existing MEMBER objects are ignored, since the
 106  *                MEMBER_AT is not being addressed by the operation.
 107  *
 108  *              - if the entry being renamed has the MEMBER_OF attribute,
 109  *                the corresponding MEMBER value must be modified in the
 110  *                respective group entries.
 111  *
 112  *
 113  *      - delete:
 114  *              - if the entry being deleted is a GROUP, the (existing)
 115  *                MEMBER objects are modified accordingly; a copy of the
 116  *                values of the MEMBER_AT is saved and, if the delete
 117  *                succeeds, the MEMBER_OF value of the (existing) MEMBER
 118  *                objects is deleted.
 119  *
 120  *                We need to determine, from the database, if it is
 121  *                a GROUP.
 122  *
 123  *                Non-existing MEMBER objects are ignored, since the entry
 124  *                is being deleted.
 125  *
 126  *              - if the entry being deleted has the MEMBER_OF attribute,
 127  *                the corresponding value of the MEMBER_AT must be deleted
 128  *                from the respective GROUP entries.
 129  */
 130
 131 #define SLAPD_MEMBEROF_ATTR     "memberOf"
 132
 133 static slap_overinst            memberof;
 134
 135 typedef struct memberof_t {
 136         struct berval           mo_dn;
 137         struct berval           mo_ndn;
 138
 139         ObjectClass             *mo_oc_group;
 140         AttributeDescription    *mo_ad_member;
 141         AttributeDescription    *mo_ad_memberof;
 142
 143         struct berval           mo_groupFilterstr;
 144         AttributeAssertion      mo_groupAVA;
 145         Filter                  mo_groupFilter;
 146
 147         struct berval           mo_memberFilterstr;
 148         Filter                  mo_memberFilter;
 149
 150         unsigned                mo_flags;
 151 #define MEMBEROF_NONE           0x00U
 152 #define MEMBEROF_FDANGLING_DROP 0x01U
 153 #define MEMBEROF_FDANGLING_ERROR        0x02U
 154 #define MEMBEROF_FDANGLING_MASK (MEMBEROF_FDANGLING_DROP|MEMBEROF_FDANGLING_ERROR)
 155 #define MEMBEROF_FREFINT        0x04U
 156 #define MEMBEROF_FREVERSE       0x08U
 157
 158         ber_int_t               mo_dangling_err;
 159
 160 #define MEMBEROF_CHK(mo,f) \
 161         (((mo)->mo_flags & (f)) == (f))
 162 #define MEMBEROF_DANGLING_CHECK(mo) \
 163         ((mo)->mo_flags & MEMBEROF_FDANGLING_MASK)
 164 #define MEMBEROF_DANGLING_DROP(mo) \
 165         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_DROP)
 166 #define MEMBEROF_DANGLING_ERROR(mo) \
 167         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_ERROR)
 168 #define MEMBEROF_REFINT(mo) \
 169         MEMBEROF_CHK((mo),MEMBEROF_FREFINT)
 170 #define MEMBEROF_REVERSE(mo) \
 171         MEMBEROF_CHK((mo),MEMBEROF_FREVERSE)
 172 } memberof_t;
 173
 174 typedef enum memberof_is_t {
 175         MEMBEROF_IS_NONE = 0x00,
 176         MEMBEROF_IS_GROUP = 0x01,
 177         MEMBEROF_IS_MEMBER = 0x02,
 178         MEMBEROF_IS_BOTH = (MEMBEROF_IS_GROUP|MEMBEROF_IS_MEMBER)
 179 } memberof_is_t;
 180
 181 typedef struct memberof_cookie_t {
 182         AttributeDescription    *ad;
 183         BerVarray               vals;
 184         int                     foundit;
 185 } memberof_cookie_t;
 186
 187 typedef struct memberof_cbinfo_t {
 188         slap_overinst *on;
 189         BerVarray member;
 190         BerVarray memberof;
 191         memberof_is_t what;
 192 } memberof_cbinfo_t;
 193
 194 static void
 195 memberof_set_backend( Operation *op_target, Operation *op, slap_overinst *on )
 196 {
 197     BackendInfo *bi = op->o_bd->bd_info;
 198
 199     if ( bi->bi_type == memberof.on_bi.bi_type )
 200         op_target->o_bd->bd_info = (BackendInfo *)on->on_info;
 201 }
 202
 203 static int
 204 memberof_isGroupOrMember_cb( Operation *op, SlapReply *rs )
 205 {
 206         if ( rs->sr_type == REP_SEARCH ) {
 207                 memberof_cookie_t       *mc;
 208
 209                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 210                 mc->foundit = 1;
 211         }
 212
 213         return 0;
 214 }
 215
 216 /*
 217  * callback for internal search that saves the member attribute values
 218  * of groups being deleted.
 219  */
 220 static int
 221 memberof_saveMember_cb( Operation *op, SlapReply *rs )
 222 {
 223         if ( rs->sr_type == REP_SEARCH ) {
 224                 memberof_cookie_t       *mc;
 225                 Attribute               *a;
 226
 227                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 228                 mc->foundit = 1;
 229
 230                 assert( rs->sr_entry != NULL );
 231                 assert( rs->sr_entry->e_attrs != NULL );
 232
 233                 a = attr_find( rs->sr_entry->e_attrs, mc->ad );
 234                 if ( a != NULL ) {
 235                         ber_bvarray_dup_x( &mc->vals, a->a_nvals, op->o_tmpmemctx );
 236
 237                         assert( attr_find( a->a_next, mc->ad ) == NULL );
 238                 }
 239         }
 240
 241         return 0;
 242 }
 243
 244 /*
 245  * the delete hook performs an internal search that saves the member
 246  * attribute values of groups being deleted.
 247  */
 248 static int
 249 memberof_isGroupOrMember( Operation *op, memberof_cbinfo_t *mci )
 250 {
 251         slap_overinst           *on = mci->on;
 252         memberof_t              *mo = (memberof_t *)on->on_bi.bi_private;
 253
 254         Operation               op2 = *op;
 255         slap_callback           cb = { 0 };
 256         BackendInfo     *bi = op->o_bd->bd_info;
 257         AttributeName           an[ 2 ];
 258
 259         memberof_is_t           iswhat = MEMBEROF_IS_NONE;
 260         memberof_cookie_t       mc;
 261
 262         assert( mci->what != MEMBEROF_IS_NONE );
 263
 264         cb.sc_private = &mc;
 265         if ( op->o_tag == LDAP_REQ_DELETE ) {
 266                 cb.sc_response = memberof_saveMember_cb;
 267
 268         } else {
 269                 cb.sc_response = memberof_isGroupOrMember_cb;
 270         }
 271
 272         op2.o_tag = LDAP_REQ_SEARCH;
 273         op2.o_callback = &cb;
 274         op2.o_dn = op->o_bd->be_rootdn;
 275         op2.o_ndn = op->o_bd->be_rootndn;
 276
 277         op2.ors_scope = LDAP_SCOPE_BASE;
 278         op2.ors_deref = LDAP_DEREF_NEVER;
 279         BER_BVZERO( &an[ 1 ].an_name );
 280         op2.ors_attrs = an;
 281         op2.ors_attrsonly = 0;
 282         op2.ors_limit = NULL;
 283         op2.ors_slimit = 1;
 284         op2.ors_tlimit = SLAP_NO_LIMIT;
 285
 286         if ( mci->what & MEMBEROF_IS_GROUP ) {
 287                 SlapReply       rs2 = { REP_RESULT };
 288
 289                 mc.ad = mo->mo_ad_member;
 290                 mc.foundit = 0;
 291                 mc.vals = NULL;
 292                 an[ 0 ].an_desc = mo->mo_ad_member;
 293                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 294                 op2.ors_filterstr = mo->mo_groupFilterstr;
 295                 op2.ors_filter = &mo->mo_groupFilter;
 296                 op2.o_do_not_cache = 1; /* internal search, don't log */
 297
 298                 memberof_set_backend( &op2, op, on );
 299                 (void)op->o_bd->be_search( &op2, &rs2 );
 300                 op2.o_bd->bd_info = bi;
 301
 302                 if ( mc.foundit ) {
 303                         iswhat |= MEMBEROF_IS_GROUP;
 304                         if ( mc.vals ) mci->member = mc.vals;
 305
 306                 }
 307         }
 308
 309         if ( mci->what & MEMBEROF_IS_MEMBER ) {
 310                 SlapReply       rs2 = { REP_RESULT };
 311
 312                 mc.ad = mo->mo_ad_memberof;
 313                 mc.foundit = 0;
 314                 mc.vals = NULL;
 315                 an[ 0 ].an_desc = mo->mo_ad_memberof;
 316                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 317                 op2.ors_filterstr = mo->mo_memberFilterstr;
 318                 op2.ors_filter = &mo->mo_memberFilter;
 319                 op2.o_do_not_cache = 1; /* internal search, don't log */
 320
 321                 memberof_set_backend( &op2, op, on );
 322                 (void)op->o_bd->be_search( &op2, &rs2 );
 323                 op2.o_bd->bd_info = bi;
 324
 325                 if ( mc.foundit ) {
 326                         iswhat |= MEMBEROF_IS_MEMBER;
 327                         if ( mc.vals ) mci->memberof = mc.vals;
 328
 329                 }
 330         }
 331
 332         mci->what = iswhat;
 333
 334         return LDAP_SUCCESS;
 335 }
 336
 337 /*
 338  * response callback that adds memberof values when a group is modified.
 339  */
 340 static void
 341 memberof_value_modify(
 342         Operation               *op,
 343         struct berval           *ndn,
 344         AttributeDescription    *ad,
 345         struct berval           *old_dn,
 346         struct berval           *old_ndn,
 347         struct berval           *new_dn,
 348         struct berval           *new_ndn )
 349 {
 350         memberof_cbinfo_t *mci = op->o_callback->sc_private;
 351         slap_overinst   *on = mci->on;
 352         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 353
 354         Operation       op2 = *op;
 355         unsigned long opid = op->o_opid;
 356         SlapReply       rs2 = { REP_RESULT };
 357         slap_callback   cb = { NULL, slap_null_cb, NULL, NULL };
 358         Modifications   mod[ 2 ] = { { { 0 } } }, *ml;
 359         struct berval   values[ 4 ], nvalues[ 4 ];
 360         int             mcnt = 0;
 361
 362         op2.o_tag = LDAP_REQ_MODIFY;
 363
 364         op2.o_req_dn = *ndn;
 365         op2.o_req_ndn = *ndn;
 366
 367         op2.o_callback = &cb;
 368         op2.o_dn = op->o_bd->be_rootdn;
 369         op2.o_ndn = op->o_bd->be_rootndn;
 370         op2.orm_modlist = NULL;
 371
 372         /* Internal ops, never replicate these */
 373         op2.o_opid = 0;         /* shared with op, saved above */
 374         op2.orm_no_opattrs = 1;
 375         op2.o_dont_replicate = 1;
 376
 377         if ( !BER_BVISNULL( &mo->mo_ndn ) ) {
 378                 ml = &mod[ mcnt ];
 379                 ml->sml_numvals = 1;
 380                 ml->sml_values = &values[ 0 ];
 381                 ml->sml_values[ 0 ] = mo->mo_dn;
 382                 BER_BVZERO( &ml->sml_values[ 1 ] );
 383                 ml->sml_nvalues = &nvalues[ 0 ];
 384                 ml->sml_nvalues[ 0 ] = mo->mo_ndn;
 385                 BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 386                 ml->sml_desc = slap_schema.si_ad_modifiersName;
 387                 ml->sml_type = ml->sml_desc->ad_cname;
 388                 ml->sml_op = LDAP_MOD_REPLACE;
 389                 ml->sml_flags = SLAP_MOD_INTERNAL;
 390                 ml->sml_next = op2.orm_modlist;
 391                 op2.orm_modlist = ml;
 392
 393                 mcnt++;
 394         }
 395
 396         ml = &mod[ mcnt ];
 397         ml->sml_numvals = 1;
 398         ml->sml_values = &values[ 2 ];
 399         BER_BVZERO( &ml->sml_values[ 1 ] );
 400         ml->sml_nvalues = &nvalues[ 2 ];
 401         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 402         ml->sml_desc = ad;
 403         ml->sml_type = ml->sml_desc->ad_cname;
 404         ml->sml_flags = SLAP_MOD_INTERNAL;
 405         ml->sml_next = op2.orm_modlist;
 406         op2.orm_modlist = ml;
 407
 408         if ( new_ndn != NULL ) {
 409                 BackendInfo *bi = op2.o_bd->bd_info;
 410                 OpExtra oex;
 411
 412                 assert( !BER_BVISNULL( new_dn ) );
 413                 assert( !BER_BVISNULL( new_ndn ) );
 414
 415                 ml = &mod[ mcnt ];
 416                 ml->sml_op = LDAP_MOD_ADD;
 417
 418                 ml->sml_values[ 0 ] = *new_dn;
 419                 ml->sml_nvalues[ 0 ] = *new_ndn;
 420
 421                 oex.oe_key = (void *)&memberof;
 422                 LDAP_SLIST_INSERT_HEAD(&op2.o_extra, &oex, oe_next);
 423                 memberof_set_backend( &op2, op, on );
 424                 (void)op->o_bd->be_modify( &op2, &rs2 );
 425                 op2.o_bd->bd_info = bi;
 426                 LDAP_SLIST_REMOVE(&op2.o_extra, &oex, OpExtra, oe_next);
 427                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 428                         char buf[ SLAP_TEXT_BUFLEN ];
 429                         snprintf( buf, sizeof( buf ),
 430                                 "memberof_value_modify DN=\"%s\" add %s=\"%s\" failed err=%d",
 431                                 op2.o_req_dn.bv_val, ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err );
 432                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 433                                 op->o_log_prefix, buf, 0 );
 434                 }
 435
 436                 assert( op2.orm_modlist == &mod[ mcnt ] );
 437                 assert( mcnt == 0 || op2.orm_modlist->sml_next == &mod[ 0 ] );
 438                 ml = op2.orm_modlist->sml_next;
 439                 if ( mcnt == 1 ) {
 440                         assert( ml == &mod[ 0 ] );
 441                         ml = ml->sml_next;
 442                 }
 443                 if ( ml != NULL ) {
 444                         slap_mods_free( ml, 1 );
 445                 }
 446
 447                 mod[ 0 ].sml_next = NULL;
 448         }
 449
 450         if ( old_ndn != NULL ) {
 451                 BackendInfo *bi = op2.o_bd->bd_info;
 452                 OpExtra oex;
 453
 454                 assert( !BER_BVISNULL( old_dn ) );
 455                 assert( !BER_BVISNULL( old_ndn ) );
 456
 457                 ml = &mod[ mcnt ];
 458                 ml->sml_op = LDAP_MOD_DELETE;
 459
 460                 ml->sml_values[ 0 ] = *old_dn;
 461                 ml->sml_nvalues[ 0 ] = *old_ndn;
 462
 463                 oex.oe_key = (void *)&memberof;
 464                 LDAP_SLIST_INSERT_HEAD(&op2.o_extra, &oex, oe_next);
 465                 memberof_set_backend( &op2, op, on );
 466                 (void)op->o_bd->be_modify( &op2, &rs2 );
 467                 op2.o_bd->bd_info = bi;
 468                 LDAP_SLIST_REMOVE(&op2.o_extra, &oex, OpExtra, oe_next);
 469                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 470                         char buf[ SLAP_TEXT_BUFLEN ];
 471                         snprintf( buf, sizeof( buf ),
 472                                 "memberof_value_modify DN=\"%s\" delete %s=\"%s\" failed err=%d",
 473                                 op2.o_req_dn.bv_val, ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err );
 474                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 475                                 op->o_log_prefix, buf, 0 );
 476                 }
 477
 478                 assert( op2.orm_modlist == &mod[ mcnt ] );
 479                 ml = op2.orm_modlist->sml_next;
 480                 if ( mcnt == 1 ) {
 481                         assert( ml == &mod[ 0 ] );
 482                         ml = ml->sml_next;
 483                 }
 484                 if ( ml != NULL ) {
 485                         slap_mods_free( ml, 1 );
 486                 }
 487         }
 488         /* restore original opid */
 489         op->o_opid = opid;
 490
 491         /* FIXME: if old_group_ndn doesn't exist, both delete __and__
 492          * add will fail; better split in two operations, although
 493          * not optimal in terms of performance.  At least it would
 494          * move towards self-repairing capabilities. */
 495 }
 496
 497 static int
 498 memberof_cleanup( Operation *op, SlapReply *rs )
 499 {
 500         slap_callback *sc = op->o_callback;
 501         memberof_cbinfo_t *mci = sc->sc_private;
 502
 503         op->o_callback = sc->sc_next;
 504         if ( mci->memberof )
 505                 ber_bvarray_free_x( mci->memberof, op->o_tmpmemctx );
 506         if ( mci->member )
 507                 ber_bvarray_free_x( mci->member, op->o_tmpmemctx );
 508         op->o_tmpfree( sc, op->o_tmpmemctx );
 509         return 0;
 510 }
 511
 512 static int memberof_res_add( Operation *op, SlapReply *rs );
 513 static int memberof_res_delete( Operation *op, SlapReply *rs );
 514 static int memberof_res_modify( Operation *op, SlapReply *rs );
 515 static int memberof_res_modrdn( Operation *op, SlapReply *rs );
 516
 517 static int
 518 memberof_op_add( Operation *op, SlapReply *rs )
 519 {
 520         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 521         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 522
 523         Attribute       **ap, **map = NULL;
 524         int             rc = SLAP_CB_CONTINUE;
 525         int             i;
 526         struct berval   save_dn, save_ndn;
 527         slap_callback *sc;
 528         memberof_cbinfo_t *mci;
 529         OpExtra         *oex;
 530
 531         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 532                 if ( oex->oe_key == (void *)&memberof )
 533                         return SLAP_CB_CONTINUE;
 534         }
 535
 536         if ( op->ora_e->e_attrs == NULL ) {
 537                 /* FIXME: global overlay; need to deal with */
 538                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 539                         "consistency checks not implemented when overlay "
 540                         "is instantiated as global.\n",
 541                         op->o_log_prefix, op->o_req_dn.bv_val, 0 );
 542                 return SLAP_CB_CONTINUE;
 543         }
 544
 545         if ( MEMBEROF_REVERSE( mo ) ) {
 546                 for ( ap = &op->ora_e->e_attrs; *ap; ap = &(*ap)->a_next ) {
 547                         Attribute       *a = *ap;
 548
 549                         if ( a->a_desc == mo->mo_ad_memberof ) {
 550                                 map = ap;
 551                                 break;
 552                         }
 553                 }
 554         }
 555
 556         save_dn = op->o_dn;
 557         save_ndn = op->o_ndn;
 558
 559         if ( MEMBEROF_DANGLING_CHECK( mo )
 560                         && !get_relax( op )
 561                         && is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) )
 562         {
 563                 op->o_dn = op->o_bd->be_rootdn;
 564                 op->o_ndn = op->o_bd->be_rootndn;
 565                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 566
 567                 for ( ap = &op->ora_e->e_attrs; *ap; ) {
 568                         Attribute       *a = *ap;
 569
 570                         if ( !is_ad_subtype( a->a_desc, mo->mo_ad_member ) ) {
 571                                 ap = &a->a_next;
 572                                 continue;
 573                         }
 574
 575                         assert( a->a_nvals != NULL );
 576
 577                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 578                                 Entry           *e = NULL;
 579
 580                                 /* ITS#6670 Ignore member pointing to this entry */
 581                                 if ( dn_match( &a->a_nvals[i], &save_ndn ))
 582                                         continue;
 583
 584                                 rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 585                                                 NULL, NULL, 0, &e );
 586                                 if ( rc == LDAP_SUCCESS ) {
 587                                         be_entry_release_r( op, e );
 588                                         continue;
 589                                 }
 590
 591                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 592                                         rc = rs->sr_err = mo->mo_dangling_err;
 593                                         rs->sr_text = "adding non-existing object "
 594                                                 "as group member";
 595                                         send_ldap_result( op, rs );
 596                                         goto done;
 597                                 }
 598
 599                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 600                                         int     j;
 601
 602                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 603                                                 "member=\"%s\" does not exist (stripping...)\n",
 604                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 605                                                 a->a_vals[ i ].bv_val );
 606
 607                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 608                                         ber_memfree( a->a_vals[ i ].bv_val );
 609                                         BER_BVZERO( &a->a_vals[ i ] );
 610                                         if ( a->a_nvals != a->a_vals ) {
 611                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 612                                                 BER_BVZERO( &a->a_nvals[ i ] );
 613                                         }
 614                                         a->a_numvals--;
 615                                         if ( j - i == 1 ) {
 616                                                 break;
 617                                         }
 618
 619                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 620                                                 sizeof( struct berval ) * ( j - i ) );
 621                                         if ( a->a_nvals != a->a_vals ) {
 622                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 623                                                         sizeof( struct berval ) * ( j - i ) );
 624                                         }
 625                                         i--;
 626                                 }
 627                         }
 628
 629                         /* If all values have been removed,
 630                          * remove the attribute itself. */
 631                         if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 632                                 *ap = a->a_next;
 633                                 attr_free( a );
 634
 635                         } else {
 636                                 ap = &a->a_next;
 637                         }
 638                 }
 639                 op->o_dn = save_dn;
 640                 op->o_ndn = save_ndn;
 641                 op->o_bd->bd_info = (BackendInfo *)on;
 642         }
 643
 644         if ( map != NULL ) {
 645                 Attribute               *a = *map;
 646                 AccessControlState      acl_state = ACL_STATE_INIT;
 647
 648                 for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 649                         Entry           *e;
 650
 651                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 652                         /* access is checked with the original identity */
 653                         rc = access_allowed( op, op->ora_e, mo->mo_ad_memberof,
 654                                         &a->a_nvals[ i ], ACL_WADD,
 655                                         &acl_state );
 656                         if ( rc == 0 ) {
 657                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 658                                 rs->sr_text = NULL;
 659                                 send_ldap_result( op, rs );
 660                                 goto done;
 661                         }
 662                         /* ITS#6670 Ignore member pointing to this entry */
 663                         if ( dn_match( &a->a_nvals[i], &save_ndn ))
 664                                 continue;
 665
 666                         rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 667                                         NULL, NULL, 0, &e );
 668                         op->o_bd->bd_info = (BackendInfo *)on;
 669                         if ( rc != LDAP_SUCCESS ) {
 670                                 if ( get_relax( op ) ) {
 671                                         continue;
 672                                 }
 673
 674                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 675                                         rc = rs->sr_err = mo->mo_dangling_err;
 676                                         rs->sr_text = "adding non-existing object "
 677                                                 "as memberof";
 678                                         send_ldap_result( op, rs );
 679                                         goto done;
 680                                 }
 681
 682                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 683                                         int     j;
 684
 685                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 686                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 687                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 688                                                 a->a_nvals[ i ].bv_val );
 689
 690                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 691                                         ber_memfree( a->a_vals[ i ].bv_val );
 692                                         BER_BVZERO( &a->a_vals[ i ] );
 693                                         if ( a->a_nvals != a->a_vals ) {
 694                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 695                                                 BER_BVZERO( &a->a_nvals[ i ] );
 696                                         }
 697                                         if ( j - i == 1 ) {
 698                                                 break;
 699                                         }
 700
 701                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 702                                                 sizeof( struct berval ) * ( j - i ) );
 703                                         if ( a->a_nvals != a->a_vals ) {
 704                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 705                                                         sizeof( struct berval ) * ( j - i ) );
 706                                         }
 707                                         i--;
 708                                 }
 709
 710                                 continue;
 711                         }
 712
 713                         /* access is checked with the original identity */
 714                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 715                         rc = access_allowed( op, e, mo->mo_ad_member,
 716                                         &op->o_req_ndn, ACL_WADD, NULL );
 717                         be_entry_release_r( op, e );
 718                         op->o_bd->bd_info = (BackendInfo *)on;
 719
 720                         if ( !rc ) {
 721                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 722                                 rs->sr_text = "insufficient access to object referenced by memberof";
 723                                 send_ldap_result( op, rs );
 724                                 goto done;
 725                         }
 726                 }
 727
 728                 if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 729                         *map = a->a_next;
 730                         attr_free( a );
 731                 }
 732         }
 733
 734         rc = SLAP_CB_CONTINUE;
 735
 736         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
 737         sc->sc_private = sc+1;
 738         sc->sc_response = memberof_res_add;
 739         sc->sc_cleanup = memberof_cleanup;
 740         mci = sc->sc_private;
 741         mci->on = on;
 742         mci->member = NULL;
 743         mci->memberof = NULL;
 744         sc->sc_next = op->o_callback;
 745         op->o_callback = sc;
 746
 747 done:;
 748         op->o_dn = save_dn;
 749         op->o_ndn = save_ndn;
 750         op->o_bd->bd_info = (BackendInfo *)on;
 751
 752         return rc;
 753 }
 754
 755 static int
 756 memberof_op_delete( Operation *op, SlapReply *rs )
 757 {
 758         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 759         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 760
 761         slap_callback *sc;
 762         memberof_cbinfo_t *mci;
 763         OpExtra         *oex;
 764
 765         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 766                 if ( oex->oe_key == (void *)&memberof )
 767                         return SLAP_CB_CONTINUE;
 768         }
 769
 770         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
 771         sc->sc_private = sc+1;
 772         sc->sc_response = memberof_res_delete;
 773         sc->sc_cleanup = memberof_cleanup;
 774         mci = sc->sc_private;
 775         mci->on = on;
 776         mci->member = NULL;
 777         mci->memberof = NULL;
 778         mci->what = MEMBEROF_IS_GROUP;
 779         if ( MEMBEROF_REFINT( mo ) ) {
 780                 mci->what = MEMBEROF_IS_BOTH;
 781         }
 782
 783         memberof_isGroupOrMember( op, mci );
 784
 785         sc->sc_next = op->o_callback;
 786         op->o_callback = sc;
 787
 788         return SLAP_CB_CONTINUE;
 789 }
 790
 791 static int
 792 memberof_op_modify( Operation *op, SlapReply *rs )
 793 {
 794         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 795         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 796
 797         Modifications   **mlp, **mmlp = NULL;
 798         int             rc = SLAP_CB_CONTINUE, save_member = 0;
 799         struct berval   save_dn, save_ndn;
 800         slap_callback *sc;
 801         memberof_cbinfo_t *mci, mcis;
 802         OpExtra         *oex;
 803
 804         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 805                 if ( oex->oe_key == (void *)&memberof )
 806                         return SLAP_CB_CONTINUE;
 807         }
 808
 809         if ( MEMBEROF_REVERSE( mo ) ) {
 810                 for ( mlp = &op->orm_modlist; *mlp; mlp = &(*mlp)->sml_next ) {
 811                         Modifications   *ml = *mlp;
 812
 813                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
 814                                 mmlp = mlp;
 815                                 break;
 816                         }
 817                 }
 818         }
 819
 820         save_dn = op->o_dn;
 821         save_ndn = op->o_ndn;
 822         mcis.on = on;
 823         mcis.what = MEMBEROF_IS_GROUP;
 824
 825         if ( memberof_isGroupOrMember( op, &mcis ) == LDAP_SUCCESS
 826                 && ( mcis.what & MEMBEROF_IS_GROUP ) )
 827         {
 828                 Modifications *ml;
 829
 830                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 831                         if ( ml->sml_desc == mo->mo_ad_member ) {
 832                                 switch ( ml->sml_op ) {
 833                                 case LDAP_MOD_DELETE:
 834                                 case LDAP_MOD_REPLACE:
 835                                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
 836                                         save_member = 1;
 837                                         break;
 838                                 }
 839                         }
 840                 }
 841
 842
 843                 if ( MEMBEROF_DANGLING_CHECK( mo )
 844                                 && !get_relax( op ) )
 845                 {
 846                         op->o_dn = op->o_bd->be_rootdn;
 847                         op->o_ndn = op->o_bd->be_rootndn;
 848                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 849
 850                         assert( op->orm_modlist != NULL );
 851
 852                         for ( mlp = &op->orm_modlist; *mlp; ) {
 853                                 Modifications   *ml = *mlp;
 854                                 int             i;
 855
 856                                 if ( !is_ad_subtype( ml->sml_desc, mo->mo_ad_member ) ) {
 857                                         mlp = &ml->sml_next;
 858                                         continue;
 859                                 }
 860
 861                                 switch ( ml->sml_op ) {
 862                                 case LDAP_MOD_DELETE:
 863                                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
 864                                         /* we don't care about cancellations: if the value
 865                                          * exists, fine; if it doesn't, we let the underlying
 866                                          * database fail as appropriate; */
 867                                         mlp = &ml->sml_next;
 868                                         break;
 869
 870                                 case LDAP_MOD_REPLACE:
 871                                         /* Handle this just like a delete (see above) */
 872                                         if ( !ml->sml_values ) {
 873                                                 mlp = &ml->sml_next;
 874                                                 break;
 875                                         }
 876
 877                                 case LDAP_MOD_ADD:
 878                                 case SLAP_MOD_SOFTADD: /* ITS#7487 */
 879                                 case SLAP_MOD_ADD_IF_NOT_PRESENT: /* ITS#7487 */
 880                                         /* NOTE: right now, the attributeType we use
 881                                          * for member must have a normalized value */
 882                                         assert( ml->sml_nvalues != NULL );
 883
 884                                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 885                                                 int             rc;
 886                                                 Entry           *e;
 887
 888                                                 /* ITS#6670 Ignore member pointing to this entry */
 889                                                 if ( dn_match( &ml->sml_nvalues[i], &save_ndn ))
 890                                                         continue;
 891
 892                                                 if ( be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 893                                                                 NULL, NULL, 0, &e ) == LDAP_SUCCESS )
 894                                                 {
 895                                                         be_entry_release_r( op, e );
 896                                                         continue;
 897                                                 }
 898
 899                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 900                                                         rc = rs->sr_err = mo->mo_dangling_err;
 901                                                         rs->sr_text = "adding non-existing object "
 902                                                                 "as group member";
 903                                                         send_ldap_result( op, rs );
 904                                                         goto done;
 905                                                 }
 906
 907                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 908                                                         int     j;
 909
 910                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 911                                                                 "member=\"%s\" does not exist (stripping...)\n",
 912                                                                 op->o_log_prefix, op->o_req_dn.bv_val,
 913                                                                 ml->sml_nvalues[ i ].bv_val );
 914
 915                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 916                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 917                                                         BER_BVZERO( &ml->sml_values[ i ] );
 918                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
 919                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
 920                                                         ml->sml_numvals--;
 921                                                         if ( j - i == 1 ) {
 922                                                                 break;
 923                                                         }
 924
 925                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 926                                                                 sizeof( struct berval ) * ( j - i ) );
 927                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 928                                                                 sizeof( struct berval ) * ( j - i ) );
 929                                                         i--;
 930                                                 }
 931                                         }
 932
 933                                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 934                                                 *mlp = ml->sml_next;
 935                                                 slap_mod_free( &ml->sml_mod, 0 );
 936                                                 free( ml );
 937
 938                                         } else {
 939                                                 mlp = &ml->sml_next;
 940                                         }
 941
 942                                         break;
 943
 944                                 default:
 945                                         assert( 0 );
 946                                 }
 947                         }
 948                 }
 949         }
 950
 951         if ( mmlp != NULL ) {
 952                 Modifications   *ml = *mmlp;
 953                 int             i;
 954                 Entry           *target;
 955
 956                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 957                 rc = be_entry_get_rw( op, &op->o_req_ndn,
 958                                 NULL, NULL, 0, &target );
 959                 op->o_bd->bd_info = (BackendInfo *)on;
 960                 if ( rc != LDAP_SUCCESS ) {
 961                         rc = rs->sr_err = LDAP_NO_SUCH_OBJECT;
 962                         send_ldap_result( op, rs );
 963                         goto done;
 964                 }
 965
 966                 switch ( ml->sml_op ) {
 967                 case LDAP_MOD_DELETE:
 968                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
 969                         if ( ml->sml_nvalues != NULL ) {
 970                                 AccessControlState      acl_state = ACL_STATE_INIT;
 971
 972                                 for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 973                                         Entry           *e;
 974
 975                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 976                                         /* access is checked with the original identity */
 977                                         rc = access_allowed( op, target,
 978                                                         mo->mo_ad_memberof,
 979                                                         &ml->sml_nvalues[ i ],
 980                                                         ACL_WDEL,
 981                                                         &acl_state );
 982                                         if ( rc == 0 ) {
 983                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 984                                                 rs->sr_text = NULL;
 985                                                 send_ldap_result( op, rs );
 986                                                 goto done2;
 987                                         }
 988
 989                                         rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 990                                                         NULL, NULL, 0, &e );
 991                                         op->o_bd->bd_info = (BackendInfo *)on;
 992                                         if ( rc != LDAP_SUCCESS ) {
 993                                                 if ( get_relax( op ) ) {
 994                                                         continue;
 995                                                 }
 996
 997                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 998                                                         rc = rs->sr_err = mo->mo_dangling_err;
 999                                                         rs->sr_text = "deleting non-existing object "
1000                                                                 "as memberof";
1001                                                         send_ldap_result( op, rs );
1002                                                         goto done2;
1003                                                 }
1004
1005                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1006                                                         int     j;
1007
1008                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1009                                                                 "memberof=\"%s\" does not exist (stripping...)\n",
1010                                                                 op->o_log_prefix, op->o_req_ndn.bv_val,
1011                                                                 ml->sml_nvalues[ i ].bv_val );
1012
1013                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1014                                                         ber_memfree( ml->sml_values[ i ].bv_val );
1015                                                         BER_BVZERO( &ml->sml_values[ i ] );
1016                                                         if ( ml->sml_nvalues != ml->sml_values ) {
1017                                                                 ber_memfree( ml->sml_nvalues[ i ].bv_val );
1018                                                                 BER_BVZERO( &ml->sml_nvalues[ i ] );
1019                                                         }
1020                                                         ml->sml_numvals--;
1021                                                         if ( j - i == 1 ) {
1022                                                                 break;
1023                                                         }
1024
1025                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1026                                                                 sizeof( struct berval ) * ( j - i ) );
1027                                                         if ( ml->sml_nvalues != ml->sml_values ) {
1028                                                                 AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1029                                                                         sizeof( struct berval ) * ( j - i ) );
1030                                                         }
1031                                                         i--;
1032                                                 }
1033
1034                                                 continue;
1035                                         }
1036
1037                                         /* access is checked with the original identity */
1038                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1039                                         rc = access_allowed( op, e, mo->mo_ad_member,
1040                                                         &op->o_req_ndn,
1041                                                         ACL_WDEL, NULL );
1042                                         be_entry_release_r( op, e );
1043                                         op->o_bd->bd_info = (BackendInfo *)on;
1044
1045                                         if ( !rc ) {
1046                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1047                                                 rs->sr_text = "insufficient access to object referenced by memberof";
1048                                                 send_ldap_result( op, rs );
1049                                                 goto done;
1050                                         }
1051                                 }
1052
1053                                 if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1054                                         *mmlp = ml->sml_next;
1055                                         slap_mod_free( &ml->sml_mod, 0 );
1056                                         free( ml );
1057                                 }
1058
1059                                 break;
1060                         }
1061                         /* fall thru */
1062
1063                 case LDAP_MOD_REPLACE:
1064
1065                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1066                         /* access is checked with the original identity */
1067                         rc = access_allowed( op, target,
1068                                         mo->mo_ad_memberof,
1069                                         NULL,
1070                                         ACL_WDEL, NULL );
1071                         op->o_bd->bd_info = (BackendInfo *)on;
1072                         if ( rc == 0 ) {
1073                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1074                                 rs->sr_text = NULL;
1075                                 send_ldap_result( op, rs );
1076                                 goto done2;
1077                         }
1078
1079                         if ( ml->sml_op == LDAP_MOD_DELETE || ml->sml_op == SLAP_MOD_SOFTDEL || !ml->sml_values ) {
1080                                 break;
1081                         }
1082                         /* fall thru */
1083
1084                 case LDAP_MOD_ADD:
1085                 case SLAP_MOD_SOFTADD: /* ITS#7487 */
1086                 case SLAP_MOD_ADD_IF_NOT_PRESENT: /* ITS#7487 */
1087                         {
1088                         AccessControlState      acl_state = ACL_STATE_INIT;
1089
1090                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
1091                                 Entry           *e;
1092
1093                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1094                                 /* access is checked with the original identity */
1095                                 rc = access_allowed( op, target,
1096                                                 mo->mo_ad_memberof,
1097                                                 &ml->sml_nvalues[ i ],
1098                                                 ACL_WADD,
1099                                                 &acl_state );
1100                                 if ( rc == 0 ) {
1101                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1102                                         rs->sr_text = NULL;
1103                                         send_ldap_result( op, rs );
1104                                         goto done2;
1105                                 }
1106
1107                                 /* ITS#6670 Ignore member pointing to this entry */
1108                                 if ( dn_match( &ml->sml_nvalues[i], &save_ndn ))
1109                                         continue;
1110
1111                                 rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
1112                                                 NULL, NULL, 0, &e );
1113                                 op->o_bd->bd_info = (BackendInfo *)on;
1114                                 if ( rc != LDAP_SUCCESS ) {
1115                                         if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
1116                                                 rc = rs->sr_err = mo->mo_dangling_err;
1117                                                 rs->sr_text = "adding non-existing object "
1118                                                         "as memberof";
1119                                                 send_ldap_result( op, rs );
1120                                                 goto done2;
1121                                         }
1122
1123                                         if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1124                                                 int     j;
1125
1126                                                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1127                                                         "memberof=\"%s\" does not exist (stripping...)\n",
1128                                                         op->o_log_prefix, op->o_req_ndn.bv_val,
1129                                                         ml->sml_nvalues[ i ].bv_val );
1130
1131                                                 for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1132                                                 ber_memfree( ml->sml_values[ i ].bv_val );
1133                                                 BER_BVZERO( &ml->sml_values[ i ] );
1134                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1135                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
1136                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
1137                                                 }
1138                                                 ml->sml_numvals--;
1139                                                 if ( j - i == 1 ) {
1140                                                         break;
1141                                                 }
1142
1143                                                 AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1144                                                         sizeof( struct berval ) * ( j - i ) );
1145                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1146                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1147                                                                 sizeof( struct berval ) * ( j - i ) );
1148                                                 }
1149                                                 i--;
1150                                         }
1151
1152                                         continue;
1153                                 }
1154
1155                                 /* access is checked with the original identity */
1156                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1157                                 rc = access_allowed( op, e, mo->mo_ad_member,
1158                                                 &op->o_req_ndn,
1159                                                 ACL_WDEL, NULL );
1160                                 be_entry_release_r( op, e );
1161                                 op->o_bd->bd_info = (BackendInfo *)on;
1162
1163                                 if ( !rc ) {
1164                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1165                                         rs->sr_text = "insufficient access to object referenced by memberof";
1166                                         send_ldap_result( op, rs );
1167                                         goto done;
1168                                 }
1169                         }
1170
1171                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1172                                 *mmlp = ml->sml_next;
1173                                 slap_mod_free( &ml->sml_mod, 0 );
1174                                 free( ml );
1175                         }
1176
1177                         } break;
1178
1179                 default:
1180                         assert( 0 );
1181                 }
1182
1183 done2:;
1184                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1185                 be_entry_release_r( op, target );
1186                 op->o_bd->bd_info = (BackendInfo *)on;
1187         }
1188
1189         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
1190         sc->sc_private = sc+1;
1191         sc->sc_response = memberof_res_modify;
1192         sc->sc_cleanup = memberof_cleanup;
1193         mci = sc->sc_private;
1194         mci->on = on;
1195         mci->member = NULL;
1196         mci->memberof = NULL;
1197         mci->what = mcis.what;
1198
1199         if ( save_member ) {
1200                 op->o_dn = op->o_bd->be_rootdn;
1201                 op->o_ndn = op->o_bd->be_rootndn;
1202                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1203                 rc = backend_attribute( op, NULL, &op->o_req_ndn,
1204                                 mo->mo_ad_member, &mci->member, ACL_READ );
1205                 op->o_bd->bd_info = (BackendInfo *)on;
1206         }
1207
1208         sc->sc_next = op->o_callback;
1209         op->o_callback = sc;
1210
1211         rc = SLAP_CB_CONTINUE;
1212
1213 done:;
1214         op->o_dn = save_dn;
1215         op->o_ndn = save_ndn;
1216         op->o_bd->bd_info = (BackendInfo *)on;
1217
1218         return rc;
1219 }
1220
1221 static int
1222 memberof_op_modrdn( Operation *op, SlapReply *rs )
1223 {
1224         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1225         slap_callback *sc;
1226         memberof_cbinfo_t *mci;
1227         OpExtra         *oex;
1228
1229         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
1230                 if ( oex->oe_key == (void *)&memberof )
1231                         return SLAP_CB_CONTINUE;
1232         }
1233
1234         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
1235         sc->sc_private = sc+1;
1236         sc->sc_response = memberof_res_modrdn;
1237         sc->sc_cleanup = memberof_cleanup;
1238         mci = sc->sc_private;
1239         mci->on = on;
1240         mci->member = NULL;
1241         mci->memberof = NULL;
1242
1243         sc->sc_next = op->o_callback;
1244         op->o_callback = sc;
1245
1246         return SLAP_CB_CONTINUE;
1247 }
1248
1249 /*
1250  * response callback that adds memberof values when a group is added.
1251  */
1252 static int
1253 memberof_res_add( Operation *op, SlapReply *rs )
1254 {
1255         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1256         slap_overinst   *on = mci->on;
1257         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1258
1259         int             i;
1260
1261         if ( rs->sr_err != LDAP_SUCCESS ) {
1262                 return SLAP_CB_CONTINUE;
1263         }
1264
1265         if ( MEMBEROF_REVERSE( mo ) ) {
1266                 Attribute       *ma;
1267
1268                 ma = attr_find( op->ora_e->e_attrs, mo->mo_ad_memberof );
1269                 if ( ma != NULL ) {
1270                         /* relax is required to allow to add
1271                          * a non-existing member */
1272                         op->o_relax = SLAP_CONTROL_CRITICAL;
1273
1274                         for ( i = 0; !BER_BVISNULL( &ma->a_nvals[ i ] ); i++ ) {
1275
1276                                 /* ITS#6670 Ignore member pointing to this entry */
1277                                 if ( dn_match( &ma->a_nvals[i], &op->o_req_ndn ))
1278                                         continue;
1279
1280                                 /* the modification is attempted
1281                                  * with the original identity */
1282                                 memberof_value_modify( op,
1283                                         &ma->a_nvals[ i ], mo->mo_ad_member,
1284                                         NULL, NULL, &op->o_req_dn, &op->o_req_ndn );
1285                         }
1286                 }
1287         }
1288
1289         if ( is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) ) {
1290                 Attribute       *a;
1291
1292                 for ( a = attrs_find( op->ora_e->e_attrs, mo->mo_ad_member );
1293                                 a != NULL;
1294                                 a = attrs_find( a->a_next, mo->mo_ad_member ) )
1295                 {
1296                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
1297                                 /* ITS#6670 Ignore member pointing to this entry */
1298                                 if ( dn_match( &a->a_nvals[i], &op->o_req_ndn ))
1299                                         continue;
1300
1301                                 memberof_value_modify( op,
1302                                                 &a->a_nvals[ i ],
1303                                                 mo->mo_ad_memberof,
1304                                                 NULL, NULL,
1305                                                 &op->o_req_dn,
1306                                                 &op->o_req_ndn );
1307                         }
1308                 }
1309         }
1310
1311         return SLAP_CB_CONTINUE;
1312 }
1313
1314 /*
1315  * response callback that deletes memberof values when a group is deleted.
1316  */
1317 static int
1318 memberof_res_delete( Operation *op, SlapReply *rs )
1319 {
1320         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1321         slap_overinst   *on = mci->on;
1322         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1323
1324         BerVarray       vals;
1325         int             i;
1326
1327         if ( rs->sr_err != LDAP_SUCCESS ) {
1328                 return SLAP_CB_CONTINUE;
1329         }
1330
1331         vals = mci->member;
1332         if ( vals != NULL ) {
1333                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1334                         memberof_value_modify( op,
1335                                         &vals[ i ], mo->mo_ad_memberof,
1336                                         &op->o_req_dn, &op->o_req_ndn,
1337                                         NULL, NULL );
1338                 }
1339         }
1340
1341         if ( MEMBEROF_REFINT( mo ) ) {
1342                 vals = mci->memberof;
1343                 if ( vals != NULL ) {
1344                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1345                                 memberof_value_modify( op,
1346                                                 &vals[ i ], mo->mo_ad_member,
1347                                                 &op->o_req_dn, &op->o_req_ndn,
1348                                                 NULL, NULL );
1349                         }
1350                 }
1351         }
1352
1353         return SLAP_CB_CONTINUE;
1354 }
1355
1356 /*
1357  * response callback that adds/deletes memberof values when a group
1358  * is modified.
1359  */
1360 static int
1361 memberof_res_modify( Operation *op, SlapReply *rs )
1362 {
1363         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1364         slap_overinst   *on = mci->on;
1365         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1366
1367         int             i, rc;
1368         Modifications   *ml, *mml = NULL;
1369         BerVarray       vals;
1370
1371         if ( rs->sr_err != LDAP_SUCCESS ) {
1372                 return SLAP_CB_CONTINUE;
1373         }
1374
1375         if ( MEMBEROF_REVERSE( mo ) ) {
1376                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1377                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
1378                                 mml = ml;
1379                                 break;
1380                         }
1381                 }
1382         }
1383
1384         if ( mml != NULL ) {
1385                 BerVarray       vals = mml->sml_nvalues;
1386
1387                 switch ( mml->sml_op ) {
1388                 case LDAP_MOD_DELETE:
1389                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
1390                         if ( vals != NULL ) {
1391                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1392                                         memberof_value_modify( op,
1393                                                         &vals[ i ], mo->mo_ad_member,
1394                                                         &op->o_req_dn, &op->o_req_ndn,
1395                                                         NULL, NULL );
1396                                 }
1397                                 break;
1398                         }
1399                         /* fall thru */
1400
1401                 case LDAP_MOD_REPLACE:
1402                         /* delete all ... */
1403                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1404                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
1405                                         mo->mo_ad_memberof, &vals, ACL_READ );
1406                         op->o_bd->bd_info = (BackendInfo *)on;
1407                         if ( rc == LDAP_SUCCESS ) {
1408                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1409                                         memberof_value_modify( op,
1410                                                         &vals[ i ], mo->mo_ad_member,
1411                                                         &op->o_req_dn, &op->o_req_ndn,
1412                                                         NULL, NULL );
1413                                 }
1414                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
1415                         }
1416
1417                         if ( ml->sml_op == LDAP_MOD_DELETE || !mml->sml_values ) {
1418                                 break;
1419                         }
1420                         /* fall thru */
1421
1422                 case LDAP_MOD_ADD:
1423                 case SLAP_MOD_SOFTADD: /* ITS#7487 */
1424                 case SLAP_MOD_ADD_IF_NOT_PRESENT: /* ITS#7487 */
1425                         assert( vals != NULL );
1426
1427                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1428                                 memberof_value_modify( op,
1429                                                 &vals[ i ], mo->mo_ad_member,
1430                                                 NULL, NULL,
1431                                                 &op->o_req_dn, &op->o_req_ndn );
1432                         }
1433                         break;
1434
1435                 default:
1436                         assert( 0 );
1437                 }
1438         }
1439
1440         if ( mci->what & MEMBEROF_IS_GROUP )
1441         {
1442                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1443                         if ( ml->sml_desc != mo->mo_ad_member ) {
1444                                 continue;
1445                         }
1446
1447                         switch ( ml->sml_op ) {
1448                         case LDAP_MOD_DELETE:
1449                         case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
1450                                 vals = ml->sml_nvalues;
1451                                 if ( vals != NULL ) {
1452                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1453                                                 memberof_value_modify( op,
1454                                                                 &vals[ i ], mo->mo_ad_memberof,
1455                                                                 &op->o_req_dn, &op->o_req_ndn,
1456                                                                 NULL, NULL );
1457                                         }
1458                                         break;
1459                                 }
1460                                 /* fall thru */
1461
1462                         case LDAP_MOD_REPLACE:
1463                                 vals = mci->member;
1464
1465                                 /* delete all ... */
1466                                 if ( vals != NULL ) {
1467                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1468                                                 memberof_value_modify( op,
1469                                                                 &vals[ i ], mo->mo_ad_memberof,
1470                                                                 &op->o_req_dn, &op->o_req_ndn,
1471                                                                 NULL, NULL );
1472                                         }
1473                                 }
1474
1475                                 if ( ml->sml_op == LDAP_MOD_DELETE || ml->sml_op == SLAP_MOD_SOFTDEL || !ml->sml_values ) {
1476                                         break;
1477                                 }
1478                                 /* fall thru */
1479
1480                         case LDAP_MOD_ADD:
1481                         case SLAP_MOD_SOFTADD: /* ITS#7487 */
1482                         case SLAP_MOD_ADD_IF_NOT_PRESENT : /* ITS#7487 */
1483                                 assert( ml->sml_nvalues != NULL );
1484                                 vals = ml->sml_nvalues;
1485                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1486                                         memberof_value_modify( op,
1487                                                         &vals[ i ], mo->mo_ad_memberof,
1488                                                         NULL, NULL,
1489                                                         &op->o_req_dn, &op->o_req_ndn );
1490                                 }
1491                                 break;
1492
1493                         default:
1494                                 assert( 0 );
1495                         }
1496                 }
1497         }
1498
1499         return SLAP_CB_CONTINUE;
1500 }
1501
1502 /*
1503  * response callback that adds/deletes member values when a group member
1504  * is renamed.
1505  */
1506 static int
1507 memberof_res_modrdn( Operation *op, SlapReply *rs )
1508 {
1509         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1510         slap_overinst   *on = mci->on;
1511         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1512
1513         struct berval   newPDN, newDN = BER_BVNULL, newPNDN, newNDN;
1514         int             i, rc;
1515         BerVarray       vals;
1516
1517         struct berval   save_dn, save_ndn;
1518
1519         if ( rs->sr_err != LDAP_SUCCESS ) {
1520                 return SLAP_CB_CONTINUE;
1521         }
1522
1523         mci->what = MEMBEROF_IS_GROUP;
1524         if ( MEMBEROF_REFINT( mo ) ) {
1525                 mci->what |= MEMBEROF_IS_MEMBER;
1526         }
1527
1528         if ( op->orr_nnewSup ) {
1529                 newPNDN = *op->orr_nnewSup;
1530
1531         } else {
1532                 dnParent( &op->o_req_ndn, &newPNDN );
1533         }
1534
1535         build_new_dn( &newNDN, &newPNDN, &op->orr_nnewrdn, op->o_tmpmemctx );
1536
1537         save_dn = op->o_req_dn;
1538         save_ndn = op->o_req_ndn;
1539
1540         op->o_req_dn = newNDN;
1541         op->o_req_ndn = newNDN;
1542         rc = memberof_isGroupOrMember( op, mci );
1543         op->o_req_dn = save_dn;
1544         op->o_req_ndn = save_ndn;
1545
1546         if ( rc != LDAP_SUCCESS || mci->what == MEMBEROF_IS_NONE ) {
1547                 goto done;
1548         }
1549
1550         if ( op->orr_newSup ) {
1551                 newPDN = *op->orr_newSup;
1552
1553         } else {
1554                 dnParent( &op->o_req_dn, &newPDN );
1555         }
1556
1557         build_new_dn( &newDN, &newPDN, &op->orr_newrdn, op->o_tmpmemctx );
1558
1559         if ( mci->what & MEMBEROF_IS_GROUP ) {
1560                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1561                 rc = backend_attribute( op, NULL, &newNDN,
1562                                 mo->mo_ad_member, &vals, ACL_READ );
1563                 op->o_bd->bd_info = (BackendInfo *)on;
1564
1565                 if ( rc == LDAP_SUCCESS ) {
1566                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1567                                 memberof_value_modify( op,
1568                                                 &vals[ i ], mo->mo_ad_memberof,
1569                                                 &op->o_req_dn, &op->o_req_ndn,
1570                                                 &newDN, &newNDN );
1571                         }
1572                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1573                 }
1574         }
1575
1576         if ( MEMBEROF_REFINT( mo ) && ( mci->what & MEMBEROF_IS_MEMBER ) ) {
1577                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1578                 rc = backend_attribute( op, NULL, &newNDN,
1579                                 mo->mo_ad_memberof, &vals, ACL_READ );
1580                 op->o_bd->bd_info = (BackendInfo *)on;
1581
1582                 if ( rc == LDAP_SUCCESS ) {
1583                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1584                                 memberof_value_modify( op,
1585                                                 &vals[ i ], mo->mo_ad_member,
1586                                                 &op->o_req_dn, &op->o_req_ndn,
1587                                                 &newDN, &newNDN );
1588                         }
1589                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1590                 }
1591         }
1592
1593 done:;
1594         if ( !BER_BVISNULL( &newDN ) ) {
1595                 op->o_tmpfree( newDN.bv_val, op->o_tmpmemctx );
1596         }
1597         op->o_tmpfree( newNDN.bv_val, op->o_tmpmemctx );
1598
1599         return SLAP_CB_CONTINUE;
1600 }
1601
1602
1603 static int
1604 memberof_db_init(
1605         BackendDB       *be,
1606         ConfigReply     *cr )
1607 {
1608         slap_overinst   *on = (slap_overinst *)be->bd_info;
1609         memberof_t              *mo;
1610
1611         mo = (memberof_t *)ch_calloc( 1, sizeof( memberof_t ) );
1612
1613         /* safe default */
1614         mo->mo_dangling_err = LDAP_CONSTRAINT_VIOLATION;
1615
1616         on->on_bi.bi_private = (void *)mo;
1617
1618         return 0;
1619 }
1620
1621 enum {
1622         MO_DN = 1,
1623         MO_DANGLING,
1624         MO_REFINT,
1625         MO_GROUP_OC,
1626         MO_MEMBER_AD,
1627         MO_MEMBER_OF_AD,
1628 #if 0
1629         MO_REVERSE,
1630 #endif
1631
1632         MO_DANGLING_ERROR,
1633
1634         MO_LAST
1635 };
1636
1637 static ConfigDriver mo_cf_gen;
1638
1639 #define OID             "1.3.6.1.4.1.7136.2.666.4"
1640 #define OIDAT           OID ".1.1"
1641 #define OIDCFGAT        OID ".1.2"
1642 #define OIDOC           OID ".2.1"
1643 #define OIDCFGOC        OID ".2.2"
1644
1645
1646 static ConfigTable mo_cfg[] = {
1647         { "memberof-dn", "modifiersName",
1648                 2, 2, 0, ARG_MAGIC|ARG_DN|MO_DN, mo_cf_gen,
1649                 "( OLcfgOvAt:18.0 NAME 'olcMemberOfDN' "
1650                         "DESC 'DN to be used as modifiersName' "
1651                         "SYNTAX OMsDN SINGLE-VALUE )",
1652                 NULL, NULL },
1653
1654         { "memberof-dangling", "ignore|drop|error",
1655                 2, 2, 0, ARG_MAGIC|MO_DANGLING, mo_cf_gen,
1656                 "( OLcfgOvAt:18.1 NAME 'olcMemberOfDangling' "
1657                         "DESC 'Behavior with respect to dangling members, "
1658                                 "constrained to ignore, drop, error' "
1659                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1660                 NULL, NULL },
1661
1662         { "memberof-refint", "true|FALSE",
1663                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REFINT, mo_cf_gen,
1664                 "( OLcfgOvAt:18.2 NAME 'olcMemberOfRefInt' "
1665                         "DESC 'Take care of referential integrity' "
1666                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1667                 NULL, NULL },
1668
1669         { "memberof-group-oc", "objectClass",
1670                 2, 2, 0, ARG_MAGIC|MO_GROUP_OC, mo_cf_gen,
1671                 "( OLcfgOvAt:18.3 NAME 'olcMemberOfGroupOC' "
1672                         "DESC 'Group objectClass' "
1673                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1674                 NULL, NULL },
1675
1676         { "memberof-member-ad", "member attribute",
1677                 2, 2, 0, ARG_MAGIC|MO_MEMBER_AD, mo_cf_gen,
1678                 "( OLcfgOvAt:18.4 NAME 'olcMemberOfMemberAD' "
1679                         "DESC 'member attribute' "
1680                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1681                 NULL, NULL },
1682
1683         { "memberof-memberof-ad", "memberOf attribute",
1684                 2, 2, 0, ARG_MAGIC|MO_MEMBER_OF_AD, mo_cf_gen,
1685                 "( OLcfgOvAt:18.5 NAME 'olcMemberOfMemberOfAD' "
1686                         "DESC 'memberOf attribute' "
1687                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1688                 NULL, NULL },
1689
1690 #if 0
1691         { "memberof-reverse", "true|FALSE",
1692                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REVERSE, mo_cf_gen,
1693                 "( OLcfgOvAt:18.6 NAME 'olcMemberOfReverse' "
1694                         "DESC 'Take care of referential integrity "
1695                                 "also when directly modifying memberOf' "
1696                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1697                 NULL, NULL },
1698 #endif
1699
1700         { "memberof-dangling-error", "error code",
1701                 2, 2, 0, ARG_MAGIC|MO_DANGLING_ERROR, mo_cf_gen,
1702                 "( OLcfgOvAt:18.7 NAME 'olcMemberOfDanglingError' "
1703                         "DESC 'Error code returned in case of dangling back reference' "
1704                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1705                 NULL, NULL },
1706
1707         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1708 };
1709
1710 static ConfigOCs mo_ocs[] = {
1711         { "( OLcfgOvOc:18.1 "
1712                 "NAME 'olcMemberOf' "
1713                 "DESC 'Member-of configuration' "
1714                 "SUP olcOverlayConfig "
1715                 "MAY ( "
1716                         "olcMemberOfDN "
1717                         "$ olcMemberOfDangling "
1718                         "$ olcMemberOfDanglingError"
1719                         "$ olcMemberOfRefInt "
1720                         "$ olcMemberOfGroupOC "
1721                         "$ olcMemberOfMemberAD "
1722                         "$ olcMemberOfMemberOfAD "
1723 #if 0
1724                         "$ olcMemberOfReverse "
1725 #endif
1726                         ") "
1727                 ")",
1728                 Cft_Overlay, mo_cfg, NULL, NULL },
1729         { NULL, 0, NULL }
1730 };
1731
1732 static slap_verbmasks dangling_mode[] = {
1733         { BER_BVC( "ignore" ),          MEMBEROF_NONE },
1734         { BER_BVC( "drop" ),            MEMBEROF_FDANGLING_DROP },
1735         { BER_BVC( "error" ),           MEMBEROF_FDANGLING_ERROR },
1736         { BER_BVNULL,                   0 }
1737 };
1738
1739 static int
1740 memberof_make_group_filter( memberof_t *mo )
1741 {
1742         char            *ptr;
1743
1744         if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1745                 ch_free( mo->mo_groupFilterstr.bv_val );
1746         }
1747
1748         mo->mo_groupFilter.f_choice = LDAP_FILTER_EQUALITY;
1749         mo->mo_groupFilter.f_ava = &mo->mo_groupAVA;
1750
1751         mo->mo_groupFilter.f_av_desc = slap_schema.si_ad_objectClass;
1752         mo->mo_groupFilter.f_av_value = mo->mo_oc_group->soc_cname;
1753
1754         mo->mo_groupFilterstr.bv_len = STRLENOF( "(=)" )
1755                 + slap_schema.si_ad_objectClass->ad_cname.bv_len
1756                 + mo->mo_oc_group->soc_cname.bv_len;
1757         ptr = mo->mo_groupFilterstr.bv_val = ch_malloc( mo->mo_groupFilterstr.bv_len + 1 );
1758         *ptr++ = '(';
1759         ptr = lutil_strcopy( ptr, slap_schema.si_ad_objectClass->ad_cname.bv_val );
1760         *ptr++ = '=';
1761         ptr = lutil_strcopy( ptr, mo->mo_oc_group->soc_cname.bv_val );
1762         *ptr++ = ')';
1763         *ptr = '\0';
1764
1765         return 0;
1766 }
1767
1768 static int
1769 memberof_make_member_filter( memberof_t *mo )
1770 {
1771         char            *ptr;
1772
1773         if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1774                 ch_free( mo->mo_memberFilterstr.bv_val );
1775         }
1776
1777         mo->mo_memberFilter.f_choice = LDAP_FILTER_PRESENT;
1778         mo->mo_memberFilter.f_desc = mo->mo_ad_memberof;
1779
1780         mo->mo_memberFilterstr.bv_len = STRLENOF( "(=*)" )
1781                 + mo->mo_ad_memberof->ad_cname.bv_len;
1782         ptr = mo->mo_memberFilterstr.bv_val = ch_malloc( mo->mo_memberFilterstr.bv_len + 1 );
1783         *ptr++ = '(';
1784         ptr = lutil_strcopy( ptr, mo->mo_ad_memberof->ad_cname.bv_val );
1785         ptr = lutil_strcopy( ptr, "=*)" );
1786
1787         return 0;
1788 }
1789
1790 static int
1791 mo_cf_gen( ConfigArgs *c )
1792 {
1793         slap_overinst   *on = (slap_overinst *)c->bi;
1794         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1795
1796         int             i, rc = 0;
1797
1798         if ( c->op == SLAP_CONFIG_EMIT ) {
1799                 struct berval bv = BER_BVNULL;
1800
1801                 switch( c->type ) {
1802                 case MO_DN:
1803                         if ( mo->mo_dn.bv_val != NULL) {
1804                                 value_add_one( &c->rvalue_vals, &mo->mo_dn );
1805                                 value_add_one( &c->rvalue_nvals, &mo->mo_ndn );
1806                         }
1807                         break;
1808
1809                 case MO_DANGLING:
1810                         enum_to_verb( dangling_mode, (mo->mo_flags & MEMBEROF_FDANGLING_MASK), &bv );
1811                         if ( BER_BVISNULL( &bv ) ) {
1812                                 /* there's something wrong... */
1813                                 assert( 0 );
1814                                 rc = 1;
1815
1816                         } else {
1817                                 value_add_one( &c->rvalue_vals, &bv );
1818                         }
1819                         break;
1820
1821                 case MO_DANGLING_ERROR:
1822                         if ( mo->mo_flags & MEMBEROF_FDANGLING_ERROR ) {
1823                                 char buf[ SLAP_TEXT_BUFLEN ];
1824                                 enum_to_verb( slap_ldap_response_code, mo->mo_dangling_err, &bv );
1825                                 if ( BER_BVISNULL( &bv ) ) {
1826                                         bv.bv_len = snprintf( buf, sizeof( buf ), "0x%x", mo->mo_dangling_err );
1827                                         if ( bv.bv_len < sizeof( buf ) ) {
1828                                                 bv.bv_val = buf;
1829                                         } else {
1830                                                 rc = 1;
1831                                                 break;
1832                                         }
1833                                 }
1834                                 value_add_one( &c->rvalue_vals, &bv );
1835                         } else {
1836                                 rc = 1;
1837                         }
1838                         break;
1839
1840                 case MO_REFINT:
1841                         c->value_int = MEMBEROF_REFINT( mo );
1842                         break;
1843
1844 #if 0
1845                 case MO_REVERSE:
1846                         c->value_int = MEMBEROF_REVERSE( mo );
1847                         break;
1848 #endif
1849
1850                 case MO_GROUP_OC:
1851                         if ( mo->mo_oc_group != NULL ){
1852                                 value_add_one( &c->rvalue_vals, &mo->mo_oc_group->soc_cname );
1853                         }
1854                         break;
1855
1856                 case MO_MEMBER_AD:
1857                         if ( mo->mo_ad_member != NULL ){
1858                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_member->ad_cname );
1859                         }
1860                         break;
1861
1862                 case MO_MEMBER_OF_AD:
1863                         if ( mo->mo_ad_memberof != NULL ){
1864                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_memberof->ad_cname );
1865                         }
1866                         break;
1867
1868                 default:
1869                         assert( 0 );
1870                         return 1;
1871                 }
1872
1873                 return rc;
1874
1875         } else if ( c->op == LDAP_MOD_DELETE ) {
1876                 return 1;       /* FIXME */
1877
1878         } else {
1879                 switch( c->type ) {
1880                 case MO_DN:
1881                         if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1882                                 ber_memfree( mo->mo_dn.bv_val );
1883                                 ber_memfree( mo->mo_ndn.bv_val );
1884                         }
1885                         mo->mo_dn = c->value_dn;
1886                         mo->mo_ndn = c->value_ndn;
1887                         break;
1888
1889                 case MO_DANGLING:
1890                         i = verb_to_mask( c->argv[ 1 ], dangling_mode );
1891                         if ( BER_BVISNULL( &dangling_mode[ i ].word ) ) {
1892                                 return 1;
1893                         }
1894
1895                         mo->mo_flags &= ~MEMBEROF_FDANGLING_MASK;
1896                         mo->mo_flags |= dangling_mode[ i ].mask;
1897                         break;
1898
1899                 case MO_DANGLING_ERROR:
1900                         i = verb_to_mask( c->argv[ 1 ], slap_ldap_response_code );
1901                         if ( !BER_BVISNULL( &slap_ldap_response_code[ i ].word ) ) {
1902                                 mo->mo_dangling_err = slap_ldap_response_code[ i ].mask;
1903                         } else if ( lutil_atoix( &mo->mo_dangling_err, c->argv[ 1 ], 0 ) ) {
1904                                 return 1;
1905                         }
1906                         break;
1907
1908                 case MO_REFINT:
1909                         if ( c->value_int ) {
1910                                 mo->mo_flags |= MEMBEROF_FREFINT;
1911
1912                         } else {
1913                                 mo->mo_flags &= ~MEMBEROF_FREFINT;
1914                         }
1915                         break;
1916
1917 #if 0
1918                 case MO_REVERSE:
1919                         if ( c->value_int ) {
1920                                 mo->mo_flags |= MEMBEROF_FREVERSE;
1921
1922                         } else {
1923                                 mo->mo_flags &= ~MEMBEROF_FREVERSE;
1924                         }
1925                         break;
1926 #endif
1927
1928                 case MO_GROUP_OC: {
1929                         ObjectClass     *oc = NULL;
1930
1931                         oc = oc_find( c->argv[ 1 ] );
1932                         if ( oc == NULL ) {
1933                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1934                                         "unable to find group objectClass=\"%s\"",
1935                                         c->argv[ 1 ] );
1936                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1937                                         c->log, c->cr_msg, 0 );
1938                                 return 1;
1939                         }
1940
1941                         mo->mo_oc_group = oc;
1942                         memberof_make_group_filter( mo );
1943                         } break;
1944
1945                 case MO_MEMBER_AD: {
1946                         AttributeDescription    *ad = NULL;
1947                         const char              *text = NULL;
1948
1949
1950                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1951                         if ( rc != LDAP_SUCCESS ) {
1952                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1953                                         "unable to find member attribute=\"%s\": %s (%d)",
1954                                         c->argv[ 1 ], text, rc );
1955                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1956                                         c->log, c->cr_msg, 0 );
1957                                 return 1;
1958                         }
1959
1960                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1961                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1962                         {
1963                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1964                                         "member attribute=\"%s\" must either "
1965                                         "have DN (%s) or nameUID (%s) syntax",
1966                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1967                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1968                                         c->log, c->cr_msg, 0 );
1969                                 return 1;
1970                         }
1971
1972                         mo->mo_ad_member = ad;
1973                         } break;
1974
1975                 case MO_MEMBER_OF_AD: {
1976                         AttributeDescription    *ad = NULL;
1977                         const char              *text = NULL;
1978
1979
1980                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1981                         if ( rc != LDAP_SUCCESS ) {
1982                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1983                                         "unable to find memberof attribute=\"%s\": %s (%d)",
1984                                         c->argv[ 1 ], text, rc );
1985                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1986                                         c->log, c->cr_msg, 0 );
1987                                 return 1;
1988                         }
1989
1990                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1991                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1992                         {
1993                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1994                                         "memberof attribute=\"%s\" must either "
1995                                         "have DN (%s) or nameUID (%s) syntax",
1996                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1997                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1998                                         c->log, c->cr_msg, 0 );
1999                                 return 1;
2000                         }
2001
2002                         mo->mo_ad_memberof = ad;
2003                         memberof_make_member_filter( mo );
2004                         } break;
2005
2006                 default:
2007                         assert( 0 );
2008                         return 1;
2009                 }
2010         }
2011
2012         return 0;
2013 }
2014
2015 static int
2016 memberof_db_open(
2017         BackendDB       *be,
2018         ConfigReply     *cr )
2019 {
2020         slap_overinst   *on = (slap_overinst *)be->bd_info;
2021         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
2022
2023         int             rc;
2024         const char      *text = NULL;
2025
2026         if( ! mo->mo_ad_memberof ){
2027                 rc = slap_str2ad( SLAPD_MEMBEROF_ATTR, &mo->mo_ad_memberof, &text );
2028                 if ( rc != LDAP_SUCCESS ) {
2029                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
2030                                         "unable to find attribute=\"%s\": %s (%d)\n",
2031                                         SLAPD_MEMBEROF_ATTR, text, rc );
2032                         return rc;
2033                 }
2034         }
2035
2036         if( ! mo->mo_ad_member ){
2037                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &mo->mo_ad_member, &text );
2038                 if ( rc != LDAP_SUCCESS ) {
2039                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
2040                                         "unable to find attribute=\"%s\": %s (%d)\n",
2041                                         SLAPD_GROUP_ATTR, text, rc );
2042                         return rc;
2043                 }
2044         }
2045
2046         if( ! mo->mo_oc_group ){
2047                 mo->mo_oc_group = oc_find( SLAPD_GROUP_CLASS );
2048                 if ( mo->mo_oc_group == NULL ) {
2049                         Debug( LDAP_DEBUG_ANY,
2050                                         "memberof_db_open: "
2051                                         "unable to find objectClass=\"%s\"\n",
2052                                         SLAPD_GROUP_CLASS, 0, 0 );
2053                         return 1;
2054                 }
2055         }
2056
2057         if ( BER_BVISNULL( &mo->mo_dn ) && !BER_BVISNULL( &be->be_rootdn ) ) {
2058                 ber_dupbv( &mo->mo_dn, &be->be_rootdn );
2059                 ber_dupbv( &mo->mo_ndn, &be->be_rootndn );
2060         }
2061
2062         if ( BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
2063                 memberof_make_group_filter( mo );
2064         }
2065
2066         if ( BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
2067                 memberof_make_member_filter( mo );
2068         }
2069
2070         return 0;
2071 }
2072
2073 static int
2074 memberof_db_destroy(
2075         BackendDB       *be,
2076         ConfigReply     *cr )
2077 {
2078         slap_overinst   *on = (slap_overinst *)be->bd_info;
2079         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
2080
2081         if ( mo ) {
2082                 if ( !BER_BVISNULL( &mo->mo_dn ) ) {
2083                         ber_memfree( mo->mo_dn.bv_val );
2084                         ber_memfree( mo->mo_ndn.bv_val );
2085                 }
2086
2087                 if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
2088                         ber_memfree( mo->mo_groupFilterstr.bv_val );
2089                 }
2090
2091                 if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
2092                         ber_memfree( mo->mo_memberFilterstr.bv_val );
2093                 }
2094
2095                 ber_memfree( mo );
2096         }
2097
2098         return 0;
2099 }
2100
2101 /* unused */
2102 static AttributeDescription     *ad_memberOf;
2103
2104 static struct {
2105         char    *desc;
2106         AttributeDescription **adp;
2107 } as[] = {
2108         { "( 1.2.840.113556.1.2.102 "
2109                 "NAME 'memberOf' "
2110                 "DESC 'Group that the entry belongs to' "
2111                 "SYNTAX '1.3.6.1.4.1.1466.115.121.1.12' "
2112                 "EQUALITY distinguishedNameMatch "      /* added */
2113                 "USAGE dSAOperation "                   /* added; questioned */
2114                 /* "NO-USER-MODIFICATION " */           /* add? */
2115                 "X-ORIGIN 'iPlanet Delegated Administrator' )",
2116                 &ad_memberOf },
2117         { NULL }
2118 };
2119
2120 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2121 static
2122 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2123 int
2124 memberof_initialize( void )
2125 {
2126         int                     code, i;
2127
2128         for ( i = 0; as[ i ].desc != NULL; i++ ) {
2129                 code = register_at( as[ i ].desc, as[ i ].adp, 0 );
2130                 if ( code ) {
2131                         Debug( LDAP_DEBUG_ANY,
2132                                 "memberof_initialize: register_at #%d failed\n",
2133                                 i, 0, 0 );
2134                         return code;
2135                 }
2136         }
2137
2138         memberof.on_bi.bi_type = "memberof";
2139
2140         memberof.on_bi.bi_db_init = memberof_db_init;
2141         memberof.on_bi.bi_db_open = memberof_db_open;
2142         memberof.on_bi.bi_db_destroy = memberof_db_destroy;
2143
2144         memberof.on_bi.bi_op_add = memberof_op_add;
2145         memberof.on_bi.bi_op_delete = memberof_op_delete;
2146         memberof.on_bi.bi_op_modify = memberof_op_modify;
2147         memberof.on_bi.bi_op_modrdn = memberof_op_modrdn;
2148
2149         memberof.on_bi.bi_cf_ocs = mo_ocs;
2150
2151         code = config_register_schema( mo_cfg, mo_ocs );
2152         if ( code ) return code;
2153
2154         return overlay_register( &memberof );
2155 }
2156
2157 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2158 int
2159 init_module( int argc, char *argv[] )
2160 {
2161         return memberof_initialize();
2162 }
2163 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2164
2165 #endif /* SLAPD_OVER_MEMBEROF */