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

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