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