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