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