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

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