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