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

   1 /* memberof.c - back-reference for group membership */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2005-2007 Pierangelo Masarati <ando@sys-net.it>
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGMENTS:
  17  * This work was initially developed by Pierangelo Masarati for inclusion
  18  * in OpenLDAP Software, sponsored by SysNet s.r.l.
  19  */
  20
  21 #include "portable.h"
  22
  23 #ifdef SLAPD_OVER_MEMBEROF
  24
  25 #include <stdio.h>
  26
  27 #include "ac/string.h"
  28 #include "ac/socket.h"
  29
  30 #include "slap.h"
  31 #include "config.h"
  32 #include "lutil.h"
  33
  34 /*
  35  *      Glossary:
  36  *
  37  *              GROUP           a group object (an entry with GROUP_OC
  38  *                              objectClass)
  39  *              MEMBER          a member object (an entry whose DN is
  40  *                              listed as MEMBER_AT value of a GROUP)
  41  *              GROUP_OC        the objectClass of the group object
  42  *                              (default: groupOfNames)
  43  *              MEMBER_AT       the membership attribute, DN-valued;
  44  *                              note: nameAndOptionalUID is tolerated
  45  *                              as soon as the optionalUID is absent
  46  *                              (default: member)
  47  *              MEMBER_OF       reverse membership attribute
  48  *                              (default: memberOf)
  49  *
  50  *      - add:
  51  *              - if the entry that is being added is a GROUP,
  52  *                the MEMBER_AT defined as values of the add operation
  53  *                get the MEMBER_OF value directly from the request.
  54  *
  55  *                if configured to do so, the MEMBER objects do not exist,
  56  *                and no relax control is issued, either:
  57  *                      - fail
  58  *                      - drop non-existing members
  59  *                (by default: don't muck with values)
  60  *
  61  *              - if (configured to do so,) the referenced GROUP exists,
  62  *                the relax control is set and the user has
  63  *                "manage" privileges, allow to add MEMBER_OF values to
  64  *                generic entries.
  65  *
  66  *      - modify:
  67  *              - if the entry being modified is a GROUP_OC and the
  68  *                MEMBER_AT attribute is modified, the MEMBER_OF value
  69  *                of the (existing) MEMBER_AT entries that are affected
  70  *                is modified according to the request:
  71  *                      - if a MEMBER is removed from the group,
  72  *                        delete the corresponding MEMBER_OF
  73  *                      - if a MEMBER is added to a group,
  74  *                        add the corresponding MEMBER_OF
  75  *
  76  *                We need to determine, from the database, if it is
  77  *                a GROUP_OC, and we need to check, from the
  78  *                modification list, if the MEMBER_AT attribute is being
  79  *                affected, and what MEMBER_AT values are affected.
  80  *
  81  *                if configured to do so, the entries corresponding to
  82  *                the MEMBER_AT values do not exist, and no relax control
  83  *                is issued, either:
  84  *                      - fail
  85  *                      - drop non-existing members
  86  *                (by default: don't muck with values)
  87  *
  88  *              - if configured to do so, the referenced GROUP exists,
  89  *                (the relax control is set) and the user has
  90  *                "manage" privileges, allow to add MEMBER_OF values to
  91  *                generic entries; the change is NOT automatically reflected
  92  *                in the MEMBER attribute of the GROUP referenced
  93  *                by the value of MEMBER_OF; a separate modification,
  94  *                with or without relax control, needs to be performed.
  95  *
  96  *      - modrdn:
  97  *              - if the entry being renamed is a GROUP, the MEMBER_OF
  98  *                value of the (existing) MEMBER objects is modified
  99  *                accordingly based on the newDN of the GROUP.
 100  *
 101  *                We need to determine, from the database, if it is
 102  *                a GROUP; the list of MEMBER objects is obtained from
 103  *                the database.
 104  *
 105  *                Non-existing MEMBER objects are ignored, since the
 106  *                MEMBER_AT is not being addressed by the operation.
 107  *
 108  *              - if the entry being renamed has the MEMBER_OF attribute,
 109  *                the corresponding MEMBER value must be modified in the
 110  *                respective group entries.
 111  *
 112  *
 113  *      - delete:
 114  *              - if the entry being deleted is a GROUP, the (existing)
 115  *                MEMBER objects are modified accordingly; a copy of the
 116  *                values of the MEMBER_AT is saved and, if the delete
 117  *                succeeds, the MEMBER_OF value of the (existing) MEMBER
 118  *                objects is deleted.
 119  *
 120  *                We need to determine, from the database, if it is
 121  *                a GROUP.
 122  *
 123  *                Non-existing MEMBER objects are ignored, since the entry
 124  *                is being deleted.
 125  *
 126  *              - if the entry being deleted has the MEMBER_OF attribute,
 127  *                the corresponding value of the MEMBER_AT must be deleted
 128  *                from the respective GROUP entries.
 129  */
 130
 131 #define SLAPD_MEMBEROF_ATTR     "memberOf"
 132
 133 static slap_overinst            memberof;
 134
 135 typedef struct memberof_t {
 136         struct berval           mo_dn;
 137         struct berval           mo_ndn;
 138
 139         ObjectClass             *mo_oc_group;
 140         AttributeDescription    *mo_ad_member;
 141         AttributeDescription    *mo_ad_memberof;
 142
 143         struct berval           mo_groupFilterstr;
 144         AttributeAssertion      mo_groupAVA;
 145         Filter                  mo_groupFilter;
 146
 147         struct berval           mo_memberFilterstr;
 148         Filter                  mo_memberFilter;
 149
 150         unsigned                mo_flags;
 151 #define MEMBEROF_NONE           0x00U
 152 #define MEMBEROF_FDANGLING_DROP 0x01U
 153 #define MEMBEROF_FDANGLING_ERROR        0x02U
 154 #define MEMBEROF_FDANGLING_MASK (MEMBEROF_FDANGLING_DROP|MEMBEROF_FDANGLING_ERROR)
 155 #define MEMBEROF_FREFINT        0x04U
 156 #define MEMBEROF_FREVERSE       0x08U
 157
 158         ber_int_t               mo_dangling_err;
 159
 160 #define MEMBEROF_CHK(mo,f) \
 161         (((mo)->mo_flags & (f)) == (f))
 162 #define MEMBEROF_DANGLING_CHECK(mo) \
 163         ((mo)->mo_flags & MEMBEROF_FDANGLING_MASK)
 164 #define MEMBEROF_DANGLING_DROP(mo) \
 165         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_DROP)
 166 #define MEMBEROF_DANGLING_ERROR(mo) \
 167         MEMBEROF_CHK((mo),MEMBEROF_FDANGLING_ERROR)
 168 #define MEMBEROF_REFINT(mo) \
 169         MEMBEROF_CHK((mo),MEMBEROF_FREFINT)
 170 #define MEMBEROF_REVERSE(mo) \
 171         MEMBEROF_CHK((mo),MEMBEROF_FREVERSE)
 172 } memberof_t;
 173
 174 typedef enum memberof_is_t {
 175         MEMBEROF_IS_NONE = 0x00,
 176         MEMBEROF_IS_GROUP = 0x01,
 177         MEMBEROF_IS_MEMBER = 0x02,
 178         MEMBEROF_IS_BOTH = (MEMBEROF_IS_GROUP|MEMBEROF_IS_MEMBER)
 179 } memberof_is_t;
 180
 181 typedef struct memberof_cookie_t {
 182         AttributeDescription    *ad;
 183         BerVarray               vals;
 184         int                     foundit;
 185 } memberof_cookie_t;
 186
 187 typedef struct memberof_cbinfo_t {
 188         slap_overinst *on;
 189         BerVarray member;
 190         BerVarray memberof;
 191         memberof_is_t what;
 192 } memberof_cbinfo_t;
 193
 194 static void
 195 memberof_set_backend( Operation *op_target, Operation *op, slap_overinst *on )
 196 {
 197     BackendInfo *bi = op->o_bd->bd_info;
 198
 199     if ( bi->bi_type == memberof.on_bi.bi_type )
 200         op_target->o_bd->bd_info = (BackendInfo *)on->on_info;
 201 }
 202
 203 static int
 204 memberof_isGroupOrMember_cb( Operation *op, SlapReply *rs )
 205 {
 206         if ( rs->sr_type == REP_SEARCH ) {
 207                 memberof_cookie_t       *mc;
 208
 209                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 210                 mc->foundit = 1;
 211         }
 212
 213         return 0;
 214 }
 215
 216 /*
 217  * callback for internal search that saves the member attribute values
 218  * of groups being deleted.
 219  */
 220 static int
 221 memberof_saveMember_cb( Operation *op, SlapReply *rs )
 222 {
 223         if ( rs->sr_type == REP_SEARCH ) {
 224                 memberof_cookie_t       *mc;
 225                 Attribute               *a;
 226
 227                 mc = (memberof_cookie_t *)op->o_callback->sc_private;
 228                 mc->foundit = 1;
 229
 230                 assert( rs->sr_entry != NULL );
 231                 assert( rs->sr_entry->e_attrs != NULL );
 232
 233                 a = attr_find( rs->sr_entry->e_attrs, mc->ad );
 234                 if ( a != NULL ) {
 235                         ber_bvarray_dup_x( &mc->vals, a->a_nvals, op->o_tmpmemctx );
 236
 237                         assert( attr_find( a->a_next, mc->ad ) == NULL );
 238                 }
 239         }
 240
 241         return 0;
 242 }
 243
 244 /*
 245  * the delete hook performs an internal search that saves the member
 246  * attribute values of groups being deleted.
 247  */
 248 static int
 249 memberof_isGroupOrMember( Operation *op, memberof_cbinfo_t *mci )
 250 {
 251         slap_overinst           *on = mci->on;
 252         memberof_t              *mo = (memberof_t *)on->on_bi.bi_private;
 253
 254         Operation               op2 = *op;
 255         slap_callback           cb = { 0 };
 256         BackendInfo     *bi = op->o_bd->bd_info;
 257         AttributeName           an[ 2 ];
 258
 259         memberof_is_t           iswhat = MEMBEROF_IS_NONE;
 260         memberof_cookie_t       mc;
 261
 262         assert( mci->what != MEMBEROF_IS_NONE );
 263
 264         cb.sc_private = &mc;
 265         if ( op->o_tag == LDAP_REQ_DELETE ) {
 266                 cb.sc_response = memberof_saveMember_cb;
 267
 268         } else {
 269                 cb.sc_response = memberof_isGroupOrMember_cb;
 270         }
 271
 272         op2.o_tag = LDAP_REQ_SEARCH;
 273         op2.o_callback = &cb;
 274         op2.o_dn = op->o_bd->be_rootdn;
 275         op2.o_ndn = op->o_bd->be_rootndn;
 276
 277         op2.ors_scope = LDAP_SCOPE_BASE;
 278         op2.ors_deref = LDAP_DEREF_NEVER;
 279         BER_BVZERO( &an[ 1 ].an_name );
 280         op2.ors_attrs = an;
 281         op2.ors_attrsonly = 0;
 282         op2.ors_limit = NULL;
 283         op2.ors_slimit = 1;
 284         op2.ors_tlimit = SLAP_NO_LIMIT;
 285
 286         if ( mci->what & MEMBEROF_IS_GROUP ) {
 287                 SlapReply       rs2 = { REP_RESULT };
 288
 289                 mc.ad = mo->mo_ad_member;
 290                 mc.foundit = 0;
 291                 mc.vals = NULL;
 292                 an[ 0 ].an_desc = mo->mo_ad_member;
 293                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 294                 op2.ors_filterstr = mo->mo_groupFilterstr;
 295                 op2.ors_filter = &mo->mo_groupFilter;
 296
 297                 memberof_set_backend( &op2, op, on );
 298                 (void)op->o_bd->be_search( &op2, &rs2 );
 299                 op2.o_bd->bd_info = bi;
 300
 301                 if ( mc.foundit ) {
 302                         iswhat |= MEMBEROF_IS_GROUP;
 303                         if ( mc.vals ) mci->member = mc.vals;
 304
 305                 }
 306         }
 307
 308         if ( mci->what & MEMBEROF_IS_MEMBER ) {
 309                 SlapReply       rs2 = { REP_RESULT };
 310
 311                 mc.ad = mo->mo_ad_memberof;
 312                 mc.foundit = 0;
 313                 mc.vals = NULL;
 314                 an[ 0 ].an_desc = mo->mo_ad_memberof;
 315                 an[ 0 ].an_name = an[ 0 ].an_desc->ad_cname;
 316                 op2.ors_filterstr = mo->mo_memberFilterstr;
 317                 op2.ors_filter = &mo->mo_memberFilter;
 318
 319                 memberof_set_backend( &op2, op, on );
 320                 (void)op->o_bd->be_search( &op2, &rs2 );
 321                 op2.o_bd->bd_info = bi;
 322
 323                 if ( mc.foundit ) {
 324                         iswhat |= MEMBEROF_IS_MEMBER;
 325                         if ( mc.vals ) mci->memberof = mc.vals;
 326
 327                 }
 328         }
 329
 330         mci->what = iswhat;
 331
 332         return LDAP_SUCCESS;
 333 }
 334
 335 /*
 336  * response callback that adds memberof values when a group is modified.
 337  */
 338 static void
 339 memberof_value_modify(
 340         Operation               *op,
 341         struct berval           *ndn,
 342         AttributeDescription    *ad,
 343         struct berval           *old_dn,
 344         struct berval           *old_ndn,
 345         struct berval           *new_dn,
 346         struct berval           *new_ndn )
 347 {
 348         memberof_cbinfo_t *mci = op->o_callback->sc_private;
 349         slap_overinst   *on = mci->on;
 350         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 351
 352         Operation       op2 = *op;
 353         unsigned long opid = op->o_opid;
 354         SlapReply       rs2 = { REP_RESULT };
 355         slap_callback   cb = { NULL, slap_null_cb, NULL, NULL };
 356         Modifications   mod[ 2 ] = { { { 0 } } }, *ml;
 357         struct berval   values[ 4 ], nvalues[ 4 ];
 358         int             mcnt = 0;
 359
 360         op2.o_tag = LDAP_REQ_MODIFY;
 361
 362         op2.o_req_dn = *ndn;
 363         op2.o_req_ndn = *ndn;
 364
 365         op2.o_callback = &cb;
 366         op2.o_dn = op->o_bd->be_rootdn;
 367         op2.o_ndn = op->o_bd->be_rootndn;
 368         op2.orm_modlist = NULL;
 369
 370         /* Internal ops, never replicate these */
 371         op2.o_opid = 0;         /* shared with op, saved above */
 372         op2.orm_no_opattrs = 1;
 373         op2.o_dont_replicate = 1;
 374
 375         if ( !BER_BVISNULL( &mo->mo_ndn ) ) {
 376                 ml = &mod[ mcnt ];
 377                 ml->sml_numvals = 1;
 378                 ml->sml_values = &values[ 0 ];
 379                 ml->sml_values[ 0 ] = mo->mo_dn;
 380                 BER_BVZERO( &ml->sml_values[ 1 ] );
 381                 ml->sml_nvalues = &nvalues[ 0 ];
 382                 ml->sml_nvalues[ 0 ] = mo->mo_ndn;
 383                 BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 384                 ml->sml_desc = slap_schema.si_ad_modifiersName;
 385                 ml->sml_type = ml->sml_desc->ad_cname;
 386                 ml->sml_op = LDAP_MOD_REPLACE;
 387                 ml->sml_flags = SLAP_MOD_INTERNAL;
 388                 ml->sml_next = op2.orm_modlist;
 389                 op2.orm_modlist = ml;
 390
 391                 mcnt++;
 392         }
 393
 394         ml = &mod[ mcnt ];
 395         ml->sml_numvals = 1;
 396         ml->sml_values = &values[ 2 ];
 397         BER_BVZERO( &ml->sml_values[ 1 ] );
 398         ml->sml_nvalues = &nvalues[ 2 ];
 399         BER_BVZERO( &ml->sml_nvalues[ 1 ] );
 400         ml->sml_desc = ad;
 401         ml->sml_type = ml->sml_desc->ad_cname;
 402         ml->sml_flags = SLAP_MOD_INTERNAL;
 403         ml->sml_next = op2.orm_modlist;
 404         op2.orm_modlist = ml;
 405
 406         if ( new_ndn != NULL ) {
 407                 BackendInfo *bi = op2.o_bd->bd_info;
 408                 OpExtra oex;
 409
 410                 assert( !BER_BVISNULL( new_dn ) );
 411                 assert( !BER_BVISNULL( new_ndn ) );
 412
 413                 ml = &mod[ mcnt ];
 414                 ml->sml_op = LDAP_MOD_ADD;
 415
 416                 ml->sml_values[ 0 ] = *new_dn;
 417                 ml->sml_nvalues[ 0 ] = *new_ndn;
 418
 419                 oex.oe_key = (void *)&memberof;
 420                 LDAP_SLIST_INSERT_HEAD(&op2.o_extra, &oex, oe_next);
 421                 memberof_set_backend( &op2, op, on );
 422                 (void)op->o_bd->be_modify( &op2, &rs2 );
 423                 op2.o_bd->bd_info = bi;
 424                 LDAP_SLIST_REMOVE(&op2.o_extra, &oex, OpExtra, oe_next);
 425                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 426                         char buf[ SLAP_TEXT_BUFLEN ];
 427                         snprintf( buf, sizeof( buf ),
 428                                 "memberof_value_modify DN=\"%s\" add %s=\"%s\" failed err=%d",
 429                                 op2.o_req_dn.bv_val, ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err );
 430                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 431                                 op->o_log_prefix, buf, 0 );
 432                 }
 433
 434                 assert( op2.orm_modlist == &mod[ mcnt ] );
 435                 assert( mcnt == 0 || op2.orm_modlist->sml_next == &mod[ 0 ] );
 436                 ml = op2.orm_modlist->sml_next;
 437                 if ( mcnt == 1 ) {
 438                         assert( ml == &mod[ 0 ] );
 439                         ml = ml->sml_next;
 440                 }
 441                 if ( ml != NULL ) {
 442                         slap_mods_free( ml, 1 );
 443                 }
 444
 445                 mod[ 0 ].sml_next = NULL;
 446         }
 447
 448         if ( old_ndn != NULL ) {
 449                 BackendInfo *bi = op2.o_bd->bd_info;
 450                 OpExtra oex;
 451
 452                 assert( !BER_BVISNULL( old_dn ) );
 453                 assert( !BER_BVISNULL( old_ndn ) );
 454
 455                 ml = &mod[ mcnt ];
 456                 ml->sml_op = LDAP_MOD_DELETE;
 457
 458                 ml->sml_values[ 0 ] = *old_dn;
 459                 ml->sml_nvalues[ 0 ] = *old_ndn;
 460
 461                 oex.oe_key = (void *)&memberof;
 462                 LDAP_SLIST_INSERT_HEAD(&op2.o_extra, &oex, oe_next);
 463                 memberof_set_backend( &op2, op, on );
 464                 (void)op->o_bd->be_modify( &op2, &rs2 );
 465                 op2.o_bd->bd_info = bi;
 466                 LDAP_SLIST_REMOVE(&op2.o_extra, &oex, OpExtra, oe_next);
 467                 if ( rs2.sr_err != LDAP_SUCCESS ) {
 468                         char buf[ SLAP_TEXT_BUFLEN ];
 469                         snprintf( buf, sizeof( buf ),
 470                                 "memberof_value_modify DN=\"%s\" delete %s=\"%s\" failed err=%d",
 471                                 op2.o_req_dn.bv_val, ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err );
 472                         Debug( LDAP_DEBUG_ANY, "%s: %s\n",
 473                                 op->o_log_prefix, buf, 0 );
 474                 }
 475
 476                 assert( op2.orm_modlist == &mod[ mcnt ] );
 477                 ml = op2.orm_modlist->sml_next;
 478                 if ( mcnt == 1 ) {
 479                         assert( ml == &mod[ 0 ] );
 480                         ml = ml->sml_next;
 481                 }
 482                 if ( ml != NULL ) {
 483                         slap_mods_free( ml, 1 );
 484                 }
 485         }
 486         /* restore original opid */
 487         op->o_opid = opid;
 488
 489         /* FIXME: if old_group_ndn doesn't exist, both delete __and__
 490          * add will fail; better split in two operations, although
 491          * not optimal in terms of performance.  At least it would
 492          * move towards self-repairing capabilities. */
 493 }
 494
 495 static int
 496 memberof_cleanup( Operation *op, SlapReply *rs )
 497 {
 498         slap_callback *sc = op->o_callback;
 499         memberof_cbinfo_t *mci = sc->sc_private;
 500
 501         op->o_callback = sc->sc_next;
 502         if ( mci->memberof )
 503                 ber_bvarray_free_x( mci->memberof, op->o_tmpmemctx );
 504         if ( mci->member )
 505                 ber_bvarray_free_x( mci->member, op->o_tmpmemctx );
 506         op->o_tmpfree( sc, op->o_tmpmemctx );
 507         return 0;
 508 }
 509
 510 static int memberof_res_add( Operation *op, SlapReply *rs );
 511 static int memberof_res_delete( Operation *op, SlapReply *rs );
 512 static int memberof_res_modify( Operation *op, SlapReply *rs );
 513 static int memberof_res_modrdn( Operation *op, SlapReply *rs );
 514
 515 static int
 516 memberof_op_add( Operation *op, SlapReply *rs )
 517 {
 518         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 519         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 520
 521         Attribute       **ap, **map = NULL;
 522         int             rc = SLAP_CB_CONTINUE;
 523         int             i;
 524         struct berval   save_dn, save_ndn;
 525         slap_callback *sc;
 526         memberof_cbinfo_t *mci;
 527         OpExtra         *oex;
 528
 529         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 530                 if ( oex->oe_key == (void *)&memberof )
 531                         return SLAP_CB_CONTINUE;
 532         }
 533
 534         if ( op->ora_e->e_attrs == NULL ) {
 535                 /* FIXME: global overlay; need to deal with */
 536                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 537                         "consistency checks not implemented when overlay "
 538                         "is instantiated as global.\n",
 539                         op->o_log_prefix, op->o_req_dn.bv_val, 0 );
 540                 return SLAP_CB_CONTINUE;
 541         }
 542
 543         if ( MEMBEROF_REVERSE( mo ) ) {
 544                 for ( ap = &op->ora_e->e_attrs; *ap; ap = &(*ap)->a_next ) {
 545                         Attribute       *a = *ap;
 546
 547                         if ( a->a_desc == mo->mo_ad_memberof ) {
 548                                 map = ap;
 549                                 break;
 550                         }
 551                 }
 552         }
 553
 554         save_dn = op->o_dn;
 555         save_ndn = op->o_ndn;
 556
 557         if ( MEMBEROF_DANGLING_CHECK( mo )
 558                         && !get_relax( op )
 559                         && is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) )
 560         {
 561                 op->o_dn = op->o_bd->be_rootdn;
 562                 op->o_ndn = op->o_bd->be_rootndn;
 563                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 564
 565                 for ( ap = &op->ora_e->e_attrs; *ap; ) {
 566                         Attribute       *a = *ap;
 567
 568                         if ( !is_ad_subtype( a->a_desc, mo->mo_ad_member ) ) {
 569                                 ap = &a->a_next;
 570                                 continue;
 571                         }
 572
 573                         assert( a->a_nvals != NULL );
 574
 575                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 576                                 Entry           *e = NULL;
 577
 578                                 /* ITS#6670 Ignore member pointing to this entry */
 579                                 if ( dn_match( &a->a_nvals[i], &save_ndn ))
 580                                         continue;
 581
 582                                 rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 583                                                 NULL, NULL, 0, &e );
 584                                 if ( rc == LDAP_SUCCESS ) {
 585                                         be_entry_release_r( op, e );
 586                                         continue;
 587                                 }
 588
 589                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 590                                         rc = rs->sr_err = mo->mo_dangling_err;
 591                                         rs->sr_text = "adding non-existing object "
 592                                                 "as group member";
 593                                         send_ldap_result( op, rs );
 594                                         goto done;
 595                                 }
 596
 597                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 598                                         int     j;
 599
 600                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 601                                                 "member=\"%s\" does not exist (stripping...)\n",
 602                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 603                                                 a->a_vals[ i ].bv_val );
 604
 605                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 606                                         ber_memfree( a->a_vals[ i ].bv_val );
 607                                         BER_BVZERO( &a->a_vals[ i ] );
 608                                         if ( a->a_nvals != a->a_vals ) {
 609                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 610                                                 BER_BVZERO( &a->a_nvals[ i ] );
 611                                         }
 612                                         a->a_numvals--;
 613                                         if ( j - i == 1 ) {
 614                                                 break;
 615                                         }
 616
 617                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 618                                                 sizeof( struct berval ) * ( j - i ) );
 619                                         if ( a->a_nvals != a->a_vals ) {
 620                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 621                                                         sizeof( struct berval ) * ( j - i ) );
 622                                         }
 623                                         i--;
 624                                 }
 625                         }
 626
 627                         /* If all values have been removed,
 628                          * remove the attribute itself. */
 629                         if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 630                                 *ap = a->a_next;
 631                                 attr_free( a );
 632
 633                         } else {
 634                                 ap = &a->a_next;
 635                         }
 636                 }
 637                 op->o_dn = save_dn;
 638                 op->o_ndn = save_ndn;
 639                 op->o_bd->bd_info = (BackendInfo *)on;
 640         }
 641
 642         if ( map != NULL ) {
 643                 Attribute               *a = *map;
 644                 AccessControlState      acl_state = ACL_STATE_INIT;
 645
 646                 for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
 647                         Entry           *e;
 648
 649                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 650                         /* access is checked with the original identity */
 651                         rc = access_allowed( op, op->ora_e, mo->mo_ad_memberof,
 652                                         &a->a_nvals[ i ], ACL_WADD,
 653                                         &acl_state );
 654                         if ( rc == 0 ) {
 655                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 656                                 rs->sr_text = NULL;
 657                                 send_ldap_result( op, rs );
 658                                 goto done;
 659                         }
 660                         /* ITS#6670 Ignore member pointing to this entry */
 661                         if ( dn_match( &a->a_nvals[i], &save_ndn ))
 662                                 continue;
 663
 664                         rc = be_entry_get_rw( op, &a->a_nvals[ i ],
 665                                         NULL, NULL, 0, &e );
 666                         op->o_bd->bd_info = (BackendInfo *)on;
 667                         if ( rc != LDAP_SUCCESS ) {
 668                                 if ( get_relax( op ) ) {
 669                                         continue;
 670                                 }
 671
 672                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 673                                         rc = rs->sr_err = mo->mo_dangling_err;
 674                                         rs->sr_text = "adding non-existing object "
 675                                                 "as memberof";
 676                                         send_ldap_result( op, rs );
 677                                         goto done;
 678                                 }
 679
 680                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 681                                         int     j;
 682
 683                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_add(\"%s\"): "
 684                                                 "memberof=\"%s\" does not exist (stripping...)\n",
 685                                                 op->o_log_prefix, op->ora_e->e_name.bv_val,
 686                                                 a->a_nvals[ i ].bv_val );
 687
 688                                         for ( j = i + 1; !BER_BVISNULL( &a->a_nvals[ j ] ); j++ );
 689                                         ber_memfree( a->a_vals[ i ].bv_val );
 690                                         BER_BVZERO( &a->a_vals[ i ] );
 691                                         if ( a->a_nvals != a->a_vals ) {
 692                                                 ber_memfree( a->a_nvals[ i ].bv_val );
 693                                                 BER_BVZERO( &a->a_nvals[ i ] );
 694                                         }
 695                                         if ( j - i == 1 ) {
 696                                                 break;
 697                                         }
 698
 699                                         AC_MEMCPY( &a->a_vals[ i ], &a->a_vals[ i + 1 ],
 700                                                 sizeof( struct berval ) * ( j - i ) );
 701                                         if ( a->a_nvals != a->a_vals ) {
 702                                                 AC_MEMCPY( &a->a_nvals[ i ], &a->a_nvals[ i + 1 ],
 703                                                         sizeof( struct berval ) * ( j - i ) );
 704                                         }
 705                                         i--;
 706                                 }
 707
 708                                 continue;
 709                         }
 710
 711                         /* access is checked with the original identity */
 712                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 713                         rc = access_allowed( op, e, mo->mo_ad_member,
 714                                         &op->o_req_ndn, ACL_WADD, NULL );
 715                         be_entry_release_r( op, e );
 716                         op->o_bd->bd_info = (BackendInfo *)on;
 717
 718                         if ( !rc ) {
 719                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 720                                 rs->sr_text = "insufficient access to object referenced by memberof";
 721                                 send_ldap_result( op, rs );
 722                                 goto done;
 723                         }
 724                 }
 725
 726                 if ( BER_BVISNULL( &a->a_nvals[ 0 ] ) ) {
 727                         *map = a->a_next;
 728                         attr_free( a );
 729                 }
 730         }
 731
 732         rc = SLAP_CB_CONTINUE;
 733
 734         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
 735         sc->sc_private = sc+1;
 736         sc->sc_response = memberof_res_add;
 737         sc->sc_cleanup = memberof_cleanup;
 738         mci = sc->sc_private;
 739         mci->on = on;
 740         mci->member = NULL;
 741         mci->memberof = NULL;
 742         sc->sc_next = op->o_callback;
 743         op->o_callback = sc;
 744
 745 done:;
 746         op->o_dn = save_dn;
 747         op->o_ndn = save_ndn;
 748         op->o_bd->bd_info = (BackendInfo *)on;
 749
 750         return rc;
 751 }
 752
 753 static int
 754 memberof_op_delete( Operation *op, SlapReply *rs )
 755 {
 756         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 757         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 758
 759         slap_callback *sc;
 760         memberof_cbinfo_t *mci;
 761         OpExtra         *oex;
 762
 763         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 764                 if ( oex->oe_key == (void *)&memberof )
 765                         return SLAP_CB_CONTINUE;
 766         }
 767
 768         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
 769         sc->sc_private = sc+1;
 770         sc->sc_response = memberof_res_delete;
 771         sc->sc_cleanup = memberof_cleanup;
 772         mci = sc->sc_private;
 773         mci->on = on;
 774         mci->member = NULL;
 775         mci->memberof = NULL;
 776         mci->what = MEMBEROF_IS_GROUP;
 777         if ( MEMBEROF_REFINT( mo ) ) {
 778                 mci->what = MEMBEROF_IS_BOTH;
 779         }
 780
 781         memberof_isGroupOrMember( op, mci );
 782
 783         sc->sc_next = op->o_callback;
 784         op->o_callback = sc;
 785
 786         return SLAP_CB_CONTINUE;
 787 }
 788
 789 static int
 790 memberof_op_modify( Operation *op, SlapReply *rs )
 791 {
 792         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
 793         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
 794
 795         Modifications   **mlp, **mmlp = NULL;
 796         int             rc = SLAP_CB_CONTINUE, save_member = 0;
 797         struct berval   save_dn, save_ndn;
 798         slap_callback *sc;
 799         memberof_cbinfo_t *mci, mcis;
 800         OpExtra         *oex;
 801
 802         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
 803                 if ( oex->oe_key == (void *)&memberof )
 804                         return SLAP_CB_CONTINUE;
 805         }
 806
 807         if ( MEMBEROF_REVERSE( mo ) ) {
 808                 for ( mlp = &op->orm_modlist; *mlp; mlp = &(*mlp)->sml_next ) {
 809                         Modifications   *ml = *mlp;
 810
 811                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
 812                                 mmlp = mlp;
 813                                 break;
 814                         }
 815                 }
 816         }
 817
 818         save_dn = op->o_dn;
 819         save_ndn = op->o_ndn;
 820         mcis.on = on;
 821         mcis.what = MEMBEROF_IS_GROUP;
 822
 823         if ( memberof_isGroupOrMember( op, &mcis ) == LDAP_SUCCESS
 824                 && ( mcis.what & MEMBEROF_IS_GROUP ) )
 825         {
 826                 Modifications *ml;
 827
 828                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
 829                         if ( ml->sml_desc == mo->mo_ad_member ) {
 830                                 switch ( ml->sml_op ) {
 831                                 case LDAP_MOD_DELETE:
 832                                 case LDAP_MOD_REPLACE:
 833                                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
 834                                         save_member = 1;
 835                                         break;
 836                                 }
 837                         }
 838                 }
 839
 840
 841                 if ( MEMBEROF_DANGLING_CHECK( mo )
 842                                 && !get_relax( op ) )
 843                 {
 844                         op->o_dn = op->o_bd->be_rootdn;
 845                         op->o_ndn = op->o_bd->be_rootndn;
 846                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 847
 848                         assert( op->orm_modlist != NULL );
 849
 850                         for ( mlp = &op->orm_modlist; *mlp; ) {
 851                                 Modifications   *ml = *mlp;
 852                                 int             i;
 853
 854                                 if ( !is_ad_subtype( ml->sml_desc, mo->mo_ad_member ) ) {
 855                                         mlp = &ml->sml_next;
 856                                         continue;
 857                                 }
 858
 859                                 switch ( ml->sml_op ) {
 860                                 case LDAP_MOD_DELETE:
 861                                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
 862                                         /* we don't care about cancellations: if the value
 863                                          * exists, fine; if it doesn't, we let the underlying
 864                                          * database fail as appropriate; */
 865                                         mlp = &ml->sml_next;
 866                                         break;
 867
 868                                 case LDAP_MOD_REPLACE:
 869                                         /* Handle this just like a delete (see above) */
 870                                         if ( !ml->sml_values ) {
 871                                                 mlp = &ml->sml_next;
 872                                                 break;
 873                                         }
 874
 875                                 case LDAP_MOD_ADD:
 876                                 case SLAP_MOD_SOFTADD: /* ITS#7487 */
 877                                 case SLAP_MOD_ADD_IF_NOT_PRESENT: /* ITS#7487 */
 878                                         /* NOTE: right now, the attributeType we use
 879                                          * for member must have a normalized value */
 880                                         assert( ml->sml_nvalues != NULL );
 881
 882                                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 883                                                 int             rc;
 884                                                 Entry           *e;
 885
 886                                                 /* ITS#6670 Ignore member pointing to this entry */
 887                                                 if ( dn_match( &ml->sml_nvalues[i], &save_ndn ))
 888                                                         continue;
 889
 890                                                 if ( be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 891                                                                 NULL, NULL, 0, &e ) == LDAP_SUCCESS )
 892                                                 {
 893                                                         be_entry_release_r( op, e );
 894                                                         continue;
 895                                                 }
 896
 897                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 898                                                         rc = rs->sr_err = mo->mo_dangling_err;
 899                                                         rs->sr_text = "adding non-existing object "
 900                                                                 "as group member";
 901                                                         send_ldap_result( op, rs );
 902                                                         goto done;
 903                                                 }
 904
 905                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
 906                                                         int     j;
 907
 908                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
 909                                                                 "member=\"%s\" does not exist (stripping...)\n",
 910                                                                 op->o_log_prefix, op->o_req_dn.bv_val,
 911                                                                 ml->sml_nvalues[ i ].bv_val );
 912
 913                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
 914                                                         ber_memfree( ml->sml_values[ i ].bv_val );
 915                                                         BER_BVZERO( &ml->sml_values[ i ] );
 916                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
 917                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
 918                                                         ml->sml_numvals--;
 919                                                         if ( j - i == 1 ) {
 920                                                                 break;
 921                                                         }
 922
 923                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
 924                                                                 sizeof( struct berval ) * ( j - i ) );
 925                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
 926                                                                 sizeof( struct berval ) * ( j - i ) );
 927                                                         i--;
 928                                                 }
 929                                         }
 930
 931                                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
 932                                                 *mlp = ml->sml_next;
 933                                                 slap_mod_free( &ml->sml_mod, 0 );
 934                                                 free( ml );
 935
 936                                         } else {
 937                                                 mlp = &ml->sml_next;
 938                                         }
 939
 940                                         break;
 941
 942                                 default:
 943                                         assert( 0 );
 944                                 }
 945                         }
 946                 }
 947         }
 948
 949         if ( mmlp != NULL ) {
 950                 Modifications   *ml = *mmlp;
 951                 int             i;
 952                 Entry           *target;
 953
 954                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
 955                 rc = be_entry_get_rw( op, &op->o_req_ndn,
 956                                 NULL, NULL, 0, &target );
 957                 op->o_bd->bd_info = (BackendInfo *)on;
 958                 if ( rc != LDAP_SUCCESS ) {
 959                         rc = rs->sr_err = LDAP_NO_SUCH_OBJECT;
 960                         send_ldap_result( op, rs );
 961                         goto done;
 962                 }
 963
 964                 switch ( ml->sml_op ) {
 965                 case LDAP_MOD_DELETE:
 966                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
 967                         if ( ml->sml_nvalues != NULL ) {
 968                                 AccessControlState      acl_state = ACL_STATE_INIT;
 969
 970                                 for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
 971                                         Entry           *e;
 972
 973                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
 974                                         /* access is checked with the original identity */
 975                                         rc = access_allowed( op, target,
 976                                                         mo->mo_ad_memberof,
 977                                                         &ml->sml_nvalues[ i ],
 978                                                         ACL_WDEL,
 979                                                         &acl_state );
 980                                         if ( rc == 0 ) {
 981                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 982                                                 rs->sr_text = NULL;
 983                                                 send_ldap_result( op, rs );
 984                                                 goto done2;
 985                                         }
 986
 987                                         rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
 988                                                         NULL, NULL, 0, &e );
 989                                         op->o_bd->bd_info = (BackendInfo *)on;
 990                                         if ( rc != LDAP_SUCCESS ) {
 991                                                 if ( get_relax( op ) ) {
 992                                                         continue;
 993                                                 }
 994
 995                                                 if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
 996                                                         rc = rs->sr_err = mo->mo_dangling_err;
 997                                                         rs->sr_text = "deleting non-existing object "
 998                                                                 "as memberof";
 999                                                         send_ldap_result( op, rs );
1000                                                         goto done2;
1001                                                 }
1002
1003                                                 if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1004                                                         int     j;
1005
1006                                                         Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1007                                                                 "memberof=\"%s\" does not exist (stripping...)\n",
1008                                                                 op->o_log_prefix, op->o_req_ndn.bv_val,
1009                                                                 ml->sml_nvalues[ i ].bv_val );
1010
1011                                                         for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1012                                                         ber_memfree( ml->sml_values[ i ].bv_val );
1013                                                         BER_BVZERO( &ml->sml_values[ i ] );
1014                                                         if ( ml->sml_nvalues != ml->sml_values ) {
1015                                                                 ber_memfree( ml->sml_nvalues[ i ].bv_val );
1016                                                                 BER_BVZERO( &ml->sml_nvalues[ i ] );
1017                                                         }
1018                                                         ml->sml_numvals--;
1019                                                         if ( j - i == 1 ) {
1020                                                                 break;
1021                                                         }
1022
1023                                                         AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1024                                                                 sizeof( struct berval ) * ( j - i ) );
1025                                                         if ( ml->sml_nvalues != ml->sml_values ) {
1026                                                                 AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1027                                                                         sizeof( struct berval ) * ( j - i ) );
1028                                                         }
1029                                                         i--;
1030                                                 }
1031
1032                                                 continue;
1033                                         }
1034
1035                                         /* access is checked with the original identity */
1036                                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1037                                         rc = access_allowed( op, e, mo->mo_ad_member,
1038                                                         &op->o_req_ndn,
1039                                                         ACL_WDEL, NULL );
1040                                         be_entry_release_r( op, e );
1041                                         op->o_bd->bd_info = (BackendInfo *)on;
1042
1043                                         if ( !rc ) {
1044                                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1045                                                 rs->sr_text = "insufficient access to object referenced by memberof";
1046                                                 send_ldap_result( op, rs );
1047                                                 goto done;
1048                                         }
1049                                 }
1050
1051                                 if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1052                                         *mmlp = ml->sml_next;
1053                                         slap_mod_free( &ml->sml_mod, 0 );
1054                                         free( ml );
1055                                 }
1056
1057                                 break;
1058                         }
1059                         /* fall thru */
1060
1061                 case LDAP_MOD_REPLACE:
1062
1063                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1064                         /* access is checked with the original identity */
1065                         rc = access_allowed( op, target,
1066                                         mo->mo_ad_memberof,
1067                                         NULL,
1068                                         ACL_WDEL, NULL );
1069                         op->o_bd->bd_info = (BackendInfo *)on;
1070                         if ( rc == 0 ) {
1071                                 rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1072                                 rs->sr_text = NULL;
1073                                 send_ldap_result( op, rs );
1074                                 goto done2;
1075                         }
1076
1077                         if ( ml->sml_op == LDAP_MOD_DELETE || ml->sml_op == SLAP_MOD_SOFTDEL || !ml->sml_values ) {
1078                                 break;
1079                         }
1080                         /* fall thru */
1081
1082                 case LDAP_MOD_ADD:
1083                 case SLAP_MOD_SOFTADD: /* ITS#7487 */
1084                 case SLAP_MOD_ADD_IF_NOT_PRESENT: /* ITS#7487 */
1085                         {
1086                         AccessControlState      acl_state = ACL_STATE_INIT;
1087
1088                         for ( i = 0; !BER_BVISNULL( &ml->sml_nvalues[ i ] ); i++ ) {
1089                                 Entry           *e;
1090
1091                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1092                                 /* access is checked with the original identity */
1093                                 rc = access_allowed( op, target,
1094                                                 mo->mo_ad_memberof,
1095                                                 &ml->sml_nvalues[ i ],
1096                                                 ACL_WADD,
1097                                                 &acl_state );
1098                                 if ( rc == 0 ) {
1099                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1100                                         rs->sr_text = NULL;
1101                                         send_ldap_result( op, rs );
1102                                         goto done2;
1103                                 }
1104
1105                                 /* ITS#6670 Ignore member pointing to this entry */
1106                                 if ( dn_match( &ml->sml_nvalues[i], &save_ndn ))
1107                                         continue;
1108
1109                                 rc = be_entry_get_rw( op, &ml->sml_nvalues[ i ],
1110                                                 NULL, NULL, 0, &e );
1111                                 op->o_bd->bd_info = (BackendInfo *)on;
1112                                 if ( rc != LDAP_SUCCESS ) {
1113                                         if ( MEMBEROF_DANGLING_ERROR( mo ) ) {
1114                                                 rc = rs->sr_err = mo->mo_dangling_err;
1115                                                 rs->sr_text = "adding non-existing object "
1116                                                         "as memberof";
1117                                                 send_ldap_result( op, rs );
1118                                                 goto done2;
1119                                         }
1120
1121                                         if ( MEMBEROF_DANGLING_DROP( mo ) ) {
1122                                                 int     j;
1123
1124                                                 Debug( LDAP_DEBUG_ANY, "%s: memberof_op_modify(\"%s\"): "
1125                                                         "memberof=\"%s\" does not exist (stripping...)\n",
1126                                                         op->o_log_prefix, op->o_req_ndn.bv_val,
1127                                                         ml->sml_nvalues[ i ].bv_val );
1128
1129                                                 for ( j = i + 1; !BER_BVISNULL( &ml->sml_nvalues[ j ] ); j++ );
1130                                                 ber_memfree( ml->sml_values[ i ].bv_val );
1131                                                 BER_BVZERO( &ml->sml_values[ i ] );
1132                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1133                                                         ber_memfree( ml->sml_nvalues[ i ].bv_val );
1134                                                         BER_BVZERO( &ml->sml_nvalues[ i ] );
1135                                                 }
1136                                                 ml->sml_numvals--;
1137                                                 if ( j - i == 1 ) {
1138                                                         break;
1139                                                 }
1140
1141                                                 AC_MEMCPY( &ml->sml_values[ i ], &ml->sml_values[ i + 1 ],
1142                                                         sizeof( struct berval ) * ( j - i ) );
1143                                                 if ( ml->sml_nvalues != ml->sml_values ) {
1144                                                         AC_MEMCPY( &ml->sml_nvalues[ i ], &ml->sml_nvalues[ i + 1 ],
1145                                                                 sizeof( struct berval ) * ( j - i ) );
1146                                                 }
1147                                                 i--;
1148                                         }
1149
1150                                         continue;
1151                                 }
1152
1153                                 /* access is checked with the original identity */
1154                                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1155                                 rc = access_allowed( op, e, mo->mo_ad_member,
1156                                                 &op->o_req_ndn,
1157                                                 ACL_WDEL, NULL );
1158                                 be_entry_release_r( op, e );
1159                                 op->o_bd->bd_info = (BackendInfo *)on;
1160
1161                                 if ( !rc ) {
1162                                         rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
1163                                         rs->sr_text = "insufficient access to object referenced by memberof";
1164                                         send_ldap_result( op, rs );
1165                                         goto done;
1166                                 }
1167                         }
1168
1169                         if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
1170                                 *mmlp = ml->sml_next;
1171                                 slap_mod_free( &ml->sml_mod, 0 );
1172                                 free( ml );
1173                         }
1174
1175                         } break;
1176
1177                 default:
1178                         assert( 0 );
1179                 }
1180
1181 done2:;
1182                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1183                 be_entry_release_r( op, target );
1184                 op->o_bd->bd_info = (BackendInfo *)on;
1185         }
1186
1187         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
1188         sc->sc_private = sc+1;
1189         sc->sc_response = memberof_res_modify;
1190         sc->sc_cleanup = memberof_cleanup;
1191         mci = sc->sc_private;
1192         mci->on = on;
1193         mci->member = NULL;
1194         mci->memberof = NULL;
1195         mci->what = mcis.what;
1196
1197         if ( save_member ) {
1198                 op->o_dn = op->o_bd->be_rootdn;
1199                 op->o_ndn = op->o_bd->be_rootndn;
1200                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1201                 rc = backend_attribute( op, NULL, &op->o_req_ndn,
1202                                 mo->mo_ad_member, &mci->member, ACL_READ );
1203                 op->o_bd->bd_info = (BackendInfo *)on;
1204         }
1205
1206         sc->sc_next = op->o_callback;
1207         op->o_callback = sc;
1208
1209         rc = SLAP_CB_CONTINUE;
1210
1211 done:;
1212         op->o_dn = save_dn;
1213         op->o_ndn = save_ndn;
1214         op->o_bd->bd_info = (BackendInfo *)on;
1215
1216         return rc;
1217 }
1218
1219 static int
1220 memberof_op_modrdn( Operation *op, SlapReply *rs )
1221 {
1222         slap_overinst   *on = (slap_overinst *)op->o_bd->bd_info;
1223         slap_callback *sc;
1224         memberof_cbinfo_t *mci;
1225         OpExtra         *oex;
1226
1227         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
1228                 if ( oex->oe_key == (void *)&memberof )
1229                         return SLAP_CB_CONTINUE;
1230         }
1231
1232         sc = op->o_tmpalloc( sizeof(slap_callback)+sizeof(*mci), op->o_tmpmemctx );
1233         sc->sc_private = sc+1;
1234         sc->sc_response = memberof_res_modrdn;
1235         sc->sc_cleanup = memberof_cleanup;
1236         mci = sc->sc_private;
1237         mci->on = on;
1238         mci->member = NULL;
1239         mci->memberof = NULL;
1240
1241         sc->sc_next = op->o_callback;
1242         op->o_callback = sc;
1243
1244         return SLAP_CB_CONTINUE;
1245 }
1246
1247 /*
1248  * response callback that adds memberof values when a group is added.
1249  */
1250 static int
1251 memberof_res_add( Operation *op, SlapReply *rs )
1252 {
1253         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1254         slap_overinst   *on = mci->on;
1255         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1256
1257         int             i;
1258
1259         if ( rs->sr_err != LDAP_SUCCESS ) {
1260                 return SLAP_CB_CONTINUE;
1261         }
1262
1263         if ( MEMBEROF_REVERSE( mo ) ) {
1264                 Attribute       *ma;
1265
1266                 ma = attr_find( op->ora_e->e_attrs, mo->mo_ad_memberof );
1267                 if ( ma != NULL ) {
1268                         /* relax is required to allow to add
1269                          * a non-existing member */
1270                         op->o_relax = SLAP_CONTROL_CRITICAL;
1271
1272                         for ( i = 0; !BER_BVISNULL( &ma->a_nvals[ i ] ); i++ ) {
1273
1274                                 /* ITS#6670 Ignore member pointing to this entry */
1275                                 if ( dn_match( &ma->a_nvals[i], &op->o_req_ndn ))
1276                                         continue;
1277
1278                                 /* the modification is attempted
1279                                  * with the original identity */
1280                                 memberof_value_modify( op,
1281                                         &ma->a_nvals[ i ], mo->mo_ad_member,
1282                                         NULL, NULL, &op->o_req_dn, &op->o_req_ndn );
1283                         }
1284                 }
1285         }
1286
1287         if ( is_entry_objectclass_or_sub( op->ora_e, mo->mo_oc_group ) ) {
1288                 Attribute       *a;
1289
1290                 for ( a = attrs_find( op->ora_e->e_attrs, mo->mo_ad_member );
1291                                 a != NULL;
1292                                 a = attrs_find( a->a_next, mo->mo_ad_member ) )
1293                 {
1294                         for ( i = 0; !BER_BVISNULL( &a->a_nvals[ i ] ); i++ ) {
1295                                 /* ITS#6670 Ignore member pointing to this entry */
1296                                 if ( dn_match( &a->a_nvals[i], &op->o_req_ndn ))
1297                                         continue;
1298
1299                                 memberof_value_modify( op,
1300                                                 &a->a_nvals[ i ],
1301                                                 mo->mo_ad_memberof,
1302                                                 NULL, NULL,
1303                                                 &op->o_req_dn,
1304                                                 &op->o_req_ndn );
1305                         }
1306                 }
1307         }
1308
1309         return SLAP_CB_CONTINUE;
1310 }
1311
1312 /*
1313  * response callback that deletes memberof values when a group is deleted.
1314  */
1315 static int
1316 memberof_res_delete( Operation *op, SlapReply *rs )
1317 {
1318         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1319         slap_overinst   *on = mci->on;
1320         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1321
1322         BerVarray       vals;
1323         int             i;
1324
1325         if ( rs->sr_err != LDAP_SUCCESS ) {
1326                 return SLAP_CB_CONTINUE;
1327         }
1328
1329         vals = mci->member;
1330         if ( vals != NULL ) {
1331                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1332                         memberof_value_modify( op,
1333                                         &vals[ i ], mo->mo_ad_memberof,
1334                                         &op->o_req_dn, &op->o_req_ndn,
1335                                         NULL, NULL );
1336                 }
1337         }
1338
1339         if ( MEMBEROF_REFINT( mo ) ) {
1340                 vals = mci->memberof;
1341                 if ( vals != NULL ) {
1342                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1343                                 memberof_value_modify( op,
1344                                                 &vals[ i ], mo->mo_ad_member,
1345                                                 &op->o_req_dn, &op->o_req_ndn,
1346                                                 NULL, NULL );
1347                         }
1348                 }
1349         }
1350
1351         return SLAP_CB_CONTINUE;
1352 }
1353
1354 /*
1355  * response callback that adds/deletes memberof values when a group
1356  * is modified.
1357  */
1358 static int
1359 memberof_res_modify( Operation *op, SlapReply *rs )
1360 {
1361         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1362         slap_overinst   *on = mci->on;
1363         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1364
1365         int             i, rc;
1366         Modifications   *ml, *mml = NULL;
1367         BerVarray       vals;
1368
1369         if ( rs->sr_err != LDAP_SUCCESS ) {
1370                 return SLAP_CB_CONTINUE;
1371         }
1372
1373         if ( MEMBEROF_REVERSE( mo ) ) {
1374                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1375                         if ( ml->sml_desc == mo->mo_ad_memberof ) {
1376                                 mml = ml;
1377                                 break;
1378                         }
1379                 }
1380         }
1381
1382         if ( mml != NULL ) {
1383                 BerVarray       vals = mml->sml_nvalues;
1384
1385                 switch ( mml->sml_op ) {
1386                 case LDAP_MOD_DELETE:
1387                 case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
1388                         if ( vals != NULL ) {
1389                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1390                                         memberof_value_modify( op,
1391                                                         &vals[ i ], mo->mo_ad_member,
1392                                                         &op->o_req_dn, &op->o_req_ndn,
1393                                                         NULL, NULL );
1394                                 }
1395                                 break;
1396                         }
1397                         /* fall thru */
1398
1399                 case LDAP_MOD_REPLACE:
1400                         /* delete all ... */
1401                         op->o_bd->bd_info = (BackendInfo *)on->on_info;
1402                         rc = backend_attribute( op, NULL, &op->o_req_ndn,
1403                                         mo->mo_ad_memberof, &vals, ACL_READ );
1404                         op->o_bd->bd_info = (BackendInfo *)on;
1405                         if ( rc == LDAP_SUCCESS ) {
1406                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1407                                         memberof_value_modify( op,
1408                                                         &vals[ i ], mo->mo_ad_member,
1409                                                         &op->o_req_dn, &op->o_req_ndn,
1410                                                         NULL, NULL );
1411                                 }
1412                                 ber_bvarray_free_x( vals, op->o_tmpmemctx );
1413                         }
1414
1415                         if ( ml->sml_op == LDAP_MOD_DELETE || !mml->sml_values ) {
1416                                 break;
1417                         }
1418                         /* fall thru */
1419
1420                 case LDAP_MOD_ADD:
1421                 case SLAP_MOD_SOFTADD: /* ITS#7487 */
1422                 case SLAP_MOD_ADD_IF_NOT_PRESENT: /* ITS#7487 */
1423                         assert( vals != NULL );
1424
1425                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1426                                 memberof_value_modify( op,
1427                                                 &vals[ i ], mo->mo_ad_member,
1428                                                 NULL, NULL,
1429                                                 &op->o_req_dn, &op->o_req_ndn );
1430                         }
1431                         break;
1432
1433                 default:
1434                         assert( 0 );
1435                 }
1436         }
1437
1438         if ( mci->what & MEMBEROF_IS_GROUP )
1439         {
1440                 for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
1441                         if ( ml->sml_desc != mo->mo_ad_member ) {
1442                                 continue;
1443                         }
1444
1445                         switch ( ml->sml_op ) {
1446                         case LDAP_MOD_DELETE:
1447                         case SLAP_MOD_SOFTDEL: /* ITS#7487: can be used by syncrepl (in mirror mode?) */
1448                                 vals = ml->sml_nvalues;
1449                                 if ( vals != NULL ) {
1450                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1451                                                 memberof_value_modify( op,
1452                                                                 &vals[ i ], mo->mo_ad_memberof,
1453                                                                 &op->o_req_dn, &op->o_req_ndn,
1454                                                                 NULL, NULL );
1455                                         }
1456                                         break;
1457                                 }
1458                                 /* fall thru */
1459
1460                         case LDAP_MOD_REPLACE:
1461                                 vals = mci->member;
1462
1463                                 /* delete all ... */
1464                                 if ( vals != NULL ) {
1465                                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1466                                                 memberof_value_modify( op,
1467                                                                 &vals[ i ], mo->mo_ad_memberof,
1468                                                                 &op->o_req_dn, &op->o_req_ndn,
1469                                                                 NULL, NULL );
1470                                         }
1471                                 }
1472
1473                                 if ( ml->sml_op == LDAP_MOD_DELETE || ml->sml_op == SLAP_MOD_SOFTDEL || !ml->sml_values ) {
1474                                         break;
1475                                 }
1476                                 /* fall thru */
1477
1478                         case LDAP_MOD_ADD:
1479                         case SLAP_MOD_SOFTADD: /* ITS#7487 */
1480                         case SLAP_MOD_ADD_IF_NOT_PRESENT : /* ITS#7487 */
1481                                 assert( ml->sml_nvalues != NULL );
1482                                 vals = ml->sml_nvalues;
1483                                 for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1484                                         memberof_value_modify( op,
1485                                                         &vals[ i ], mo->mo_ad_memberof,
1486                                                         NULL, NULL,
1487                                                         &op->o_req_dn, &op->o_req_ndn );
1488                                 }
1489                                 break;
1490
1491                         default:
1492                                 assert( 0 );
1493                         }
1494                 }
1495         }
1496
1497         return SLAP_CB_CONTINUE;
1498 }
1499
1500 /*
1501  * response callback that adds/deletes member values when a group member
1502  * is renamed.
1503  */
1504 static int
1505 memberof_res_modrdn( Operation *op, SlapReply *rs )
1506 {
1507         memberof_cbinfo_t *mci = op->o_callback->sc_private;
1508         slap_overinst   *on = mci->on;
1509         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1510
1511         struct berval   newPDN, newDN = BER_BVNULL, newPNDN, newNDN;
1512         int             i, rc;
1513         BerVarray       vals;
1514
1515         struct berval   save_dn, save_ndn;
1516
1517         if ( rs->sr_err != LDAP_SUCCESS ) {
1518                 return SLAP_CB_CONTINUE;
1519         }
1520
1521         mci->what = MEMBEROF_IS_GROUP;
1522         if ( MEMBEROF_REFINT( mo ) ) {
1523                 mci->what |= MEMBEROF_IS_MEMBER;
1524         }
1525
1526         if ( op->orr_nnewSup ) {
1527                 newPNDN = *op->orr_nnewSup;
1528
1529         } else {
1530                 dnParent( &op->o_req_ndn, &newPNDN );
1531         }
1532
1533         build_new_dn( &newNDN, &newPNDN, &op->orr_nnewrdn, op->o_tmpmemctx );
1534
1535         save_dn = op->o_req_dn;
1536         save_ndn = op->o_req_ndn;
1537
1538         op->o_req_dn = newNDN;
1539         op->o_req_ndn = newNDN;
1540         rc = memberof_isGroupOrMember( op, mci );
1541         op->o_req_dn = save_dn;
1542         op->o_req_ndn = save_ndn;
1543
1544         if ( rc != LDAP_SUCCESS || mci->what == MEMBEROF_IS_NONE ) {
1545                 goto done;
1546         }
1547
1548         if ( op->orr_newSup ) {
1549                 newPDN = *op->orr_newSup;
1550
1551         } else {
1552                 dnParent( &op->o_req_dn, &newPDN );
1553         }
1554
1555         build_new_dn( &newDN, &newPDN, &op->orr_newrdn, op->o_tmpmemctx );
1556
1557         if ( mci->what & MEMBEROF_IS_GROUP ) {
1558                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1559                 rc = backend_attribute( op, NULL, &newNDN,
1560                                 mo->mo_ad_member, &vals, ACL_READ );
1561                 op->o_bd->bd_info = (BackendInfo *)on;
1562
1563                 if ( rc == LDAP_SUCCESS ) {
1564                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1565                                 memberof_value_modify( op,
1566                                                 &vals[ i ], mo->mo_ad_memberof,
1567                                                 &op->o_req_dn, &op->o_req_ndn,
1568                                                 &newDN, &newNDN );
1569                         }
1570                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1571                 }
1572         }
1573
1574         if ( MEMBEROF_REFINT( mo ) && ( mci->what & MEMBEROF_IS_MEMBER ) ) {
1575                 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1576                 rc = backend_attribute( op, NULL, &newNDN,
1577                                 mo->mo_ad_memberof, &vals, ACL_READ );
1578                 op->o_bd->bd_info = (BackendInfo *)on;
1579
1580                 if ( rc == LDAP_SUCCESS ) {
1581                         for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
1582                                 memberof_value_modify( op,
1583                                                 &vals[ i ], mo->mo_ad_member,
1584                                                 &op->o_req_dn, &op->o_req_ndn,
1585                                                 &newDN, &newNDN );
1586                         }
1587                         ber_bvarray_free_x( vals, op->o_tmpmemctx );
1588                 }
1589         }
1590
1591 done:;
1592         if ( !BER_BVISNULL( &newDN ) ) {
1593                 op->o_tmpfree( newDN.bv_val, op->o_tmpmemctx );
1594         }
1595         op->o_tmpfree( newNDN.bv_val, op->o_tmpmemctx );
1596
1597         return SLAP_CB_CONTINUE;
1598 }
1599
1600
1601 static int
1602 memberof_db_init(
1603         BackendDB       *be,
1604         ConfigReply     *cr )
1605 {
1606         slap_overinst   *on = (slap_overinst *)be->bd_info;
1607         memberof_t              *mo;
1608
1609         mo = (memberof_t *)ch_calloc( 1, sizeof( memberof_t ) );
1610
1611         /* safe default */
1612         mo->mo_dangling_err = LDAP_CONSTRAINT_VIOLATION;
1613
1614         on->on_bi.bi_private = (void *)mo;
1615
1616         return 0;
1617 }
1618
1619 enum {
1620         MO_DN = 1,
1621         MO_DANGLING,
1622         MO_REFINT,
1623         MO_GROUP_OC,
1624         MO_MEMBER_AD,
1625         MO_MEMBER_OF_AD,
1626 #if 0
1627         MO_REVERSE,
1628 #endif
1629
1630         MO_DANGLING_ERROR,
1631
1632         MO_LAST
1633 };
1634
1635 static ConfigDriver mo_cf_gen;
1636
1637 #define OID             "1.3.6.1.4.1.7136.2.666.4"
1638 #define OIDAT           OID ".1.1"
1639 #define OIDCFGAT        OID ".1.2"
1640 #define OIDOC           OID ".2.1"
1641 #define OIDCFGOC        OID ".2.2"
1642
1643
1644 static ConfigTable mo_cfg[] = {
1645         { "memberof-dn", "modifiersName",
1646                 2, 2, 0, ARG_MAGIC|ARG_DN|MO_DN, mo_cf_gen,
1647                 "( OLcfgOvAt:18.0 NAME 'olcMemberOfDN' "
1648                         "DESC 'DN to be used as modifiersName' "
1649                         "SYNTAX OMsDN SINGLE-VALUE )",
1650                 NULL, NULL },
1651
1652         { "memberof-dangling", "ignore|drop|error",
1653                 2, 2, 0, ARG_MAGIC|MO_DANGLING, mo_cf_gen,
1654                 "( OLcfgOvAt:18.1 NAME 'olcMemberOfDangling' "
1655                         "DESC 'Behavior with respect to dangling members, "
1656                                 "constrained to ignore, drop, error' "
1657                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1658                 NULL, NULL },
1659
1660         { "memberof-refint", "true|FALSE",
1661                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REFINT, mo_cf_gen,
1662                 "( OLcfgOvAt:18.2 NAME 'olcMemberOfRefInt' "
1663                         "DESC 'Take care of referential integrity' "
1664                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1665                 NULL, NULL },
1666
1667         { "memberof-group-oc", "objectClass",
1668                 2, 2, 0, ARG_MAGIC|MO_GROUP_OC, mo_cf_gen,
1669                 "( OLcfgOvAt:18.3 NAME 'olcMemberOfGroupOC' "
1670                         "DESC 'Group objectClass' "
1671                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1672                 NULL, NULL },
1673
1674         { "memberof-member-ad", "member attribute",
1675                 2, 2, 0, ARG_MAGIC|MO_MEMBER_AD, mo_cf_gen,
1676                 "( OLcfgOvAt:18.4 NAME 'olcMemberOfMemberAD' "
1677                         "DESC 'member attribute' "
1678                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1679                 NULL, NULL },
1680
1681         { "memberof-memberof-ad", "memberOf attribute",
1682                 2, 2, 0, ARG_MAGIC|MO_MEMBER_OF_AD, mo_cf_gen,
1683                 "( OLcfgOvAt:18.5 NAME 'olcMemberOfMemberOfAD' "
1684                         "DESC 'memberOf attribute' "
1685                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1686                 NULL, NULL },
1687
1688 #if 0
1689         { "memberof-reverse", "true|FALSE",
1690                 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|MO_REVERSE, mo_cf_gen,
1691                 "( OLcfgOvAt:18.6 NAME 'olcMemberOfReverse' "
1692                         "DESC 'Take care of referential integrity "
1693                                 "also when directly modifying memberOf' "
1694                         "SYNTAX OMsBoolean SINGLE-VALUE )",
1695                 NULL, NULL },
1696 #endif
1697
1698         { "memberof-dangling-error", "error code",
1699                 2, 2, 0, ARG_MAGIC|MO_DANGLING_ERROR, mo_cf_gen,
1700                 "( OLcfgOvAt:18.7 NAME 'olcMemberOfDanglingError' "
1701                         "DESC 'Error code returned in case of dangling back reference' "
1702                         "SYNTAX OMsDirectoryString SINGLE-VALUE )",
1703                 NULL, NULL },
1704
1705         { NULL, NULL, 0, 0, 0, ARG_IGNORED }
1706 };
1707
1708 static ConfigOCs mo_ocs[] = {
1709         { "( OLcfgOvOc:18.1 "
1710                 "NAME 'olcMemberOf' "
1711                 "DESC 'Member-of configuration' "
1712                 "SUP olcOverlayConfig "
1713                 "MAY ( "
1714                         "olcMemberOfDN "
1715                         "$ olcMemberOfDangling "
1716                         "$ olcMemberOfDanglingError"
1717                         "$ olcMemberOfRefInt "
1718                         "$ olcMemberOfGroupOC "
1719                         "$ olcMemberOfMemberAD "
1720                         "$ olcMemberOfMemberOfAD "
1721 #if 0
1722                         "$ olcMemberOfReverse "
1723 #endif
1724                         ") "
1725                 ")",
1726                 Cft_Overlay, mo_cfg, NULL, NULL },
1727         { NULL, 0, NULL }
1728 };
1729
1730 static slap_verbmasks dangling_mode[] = {
1731         { BER_BVC( "ignore" ),          MEMBEROF_NONE },
1732         { BER_BVC( "drop" ),            MEMBEROF_FDANGLING_DROP },
1733         { BER_BVC( "error" ),           MEMBEROF_FDANGLING_ERROR },
1734         { BER_BVNULL,                   0 }
1735 };
1736
1737 static int
1738 memberof_make_group_filter( memberof_t *mo )
1739 {
1740         char            *ptr;
1741
1742         if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
1743                 ch_free( mo->mo_groupFilterstr.bv_val );
1744         }
1745
1746         mo->mo_groupFilter.f_choice = LDAP_FILTER_EQUALITY;
1747         mo->mo_groupFilter.f_ava = &mo->mo_groupAVA;
1748
1749         mo->mo_groupFilter.f_av_desc = slap_schema.si_ad_objectClass;
1750         mo->mo_groupFilter.f_av_value = mo->mo_oc_group->soc_cname;
1751
1752         mo->mo_groupFilterstr.bv_len = STRLENOF( "(=)" )
1753                 + slap_schema.si_ad_objectClass->ad_cname.bv_len
1754                 + mo->mo_oc_group->soc_cname.bv_len;
1755         ptr = mo->mo_groupFilterstr.bv_val = ch_malloc( mo->mo_groupFilterstr.bv_len + 1 );
1756         *ptr++ = '(';
1757         ptr = lutil_strcopy( ptr, slap_schema.si_ad_objectClass->ad_cname.bv_val );
1758         *ptr++ = '=';
1759         ptr = lutil_strcopy( ptr, mo->mo_oc_group->soc_cname.bv_val );
1760         *ptr++ = ')';
1761         *ptr = '\0';
1762
1763         return 0;
1764 }
1765
1766 static int
1767 memberof_make_member_filter( memberof_t *mo )
1768 {
1769         char            *ptr;
1770
1771         if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
1772                 ch_free( mo->mo_memberFilterstr.bv_val );
1773         }
1774
1775         mo->mo_memberFilter.f_choice = LDAP_FILTER_PRESENT;
1776         mo->mo_memberFilter.f_desc = mo->mo_ad_memberof;
1777
1778         mo->mo_memberFilterstr.bv_len = STRLENOF( "(=*)" )
1779                 + mo->mo_ad_memberof->ad_cname.bv_len;
1780         ptr = mo->mo_memberFilterstr.bv_val = ch_malloc( mo->mo_memberFilterstr.bv_len + 1 );
1781         *ptr++ = '(';
1782         ptr = lutil_strcopy( ptr, mo->mo_ad_memberof->ad_cname.bv_val );
1783         ptr = lutil_strcopy( ptr, "=*)" );
1784
1785         return 0;
1786 }
1787
1788 static int
1789 mo_cf_gen( ConfigArgs *c )
1790 {
1791         slap_overinst   *on = (slap_overinst *)c->bi;
1792         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
1793
1794         int             i, rc = 0;
1795
1796         if ( c->op == SLAP_CONFIG_EMIT ) {
1797                 struct berval bv = BER_BVNULL;
1798
1799                 switch( c->type ) {
1800                 case MO_DN:
1801                         if ( mo->mo_dn.bv_val != NULL) {
1802                                 value_add_one( &c->rvalue_vals, &mo->mo_dn );
1803                                 value_add_one( &c->rvalue_nvals, &mo->mo_ndn );
1804                         }
1805                         break;
1806
1807                 case MO_DANGLING:
1808                         enum_to_verb( dangling_mode, (mo->mo_flags & MEMBEROF_FDANGLING_MASK), &bv );
1809                         if ( BER_BVISNULL( &bv ) ) {
1810                                 /* there's something wrong... */
1811                                 assert( 0 );
1812                                 rc = 1;
1813
1814                         } else {
1815                                 value_add_one( &c->rvalue_vals, &bv );
1816                         }
1817                         break;
1818
1819                 case MO_DANGLING_ERROR:
1820                         if ( mo->mo_flags & MEMBEROF_FDANGLING_ERROR ) {
1821                                 char buf[ SLAP_TEXT_BUFLEN ];
1822                                 enum_to_verb( slap_ldap_response_code, mo->mo_dangling_err, &bv );
1823                                 if ( BER_BVISNULL( &bv ) ) {
1824                                         bv.bv_len = snprintf( buf, sizeof( buf ), "0x%x", mo->mo_dangling_err );
1825                                         if ( bv.bv_len < sizeof( buf ) ) {
1826                                                 bv.bv_val = buf;
1827                                         } else {
1828                                                 rc = 1;
1829                                                 break;
1830                                         }
1831                                 }
1832                                 value_add_one( &c->rvalue_vals, &bv );
1833                         } else {
1834                                 rc = 1;
1835                         }
1836                         break;
1837
1838                 case MO_REFINT:
1839                         c->value_int = MEMBEROF_REFINT( mo );
1840                         break;
1841
1842 #if 0
1843                 case MO_REVERSE:
1844                         c->value_int = MEMBEROF_REVERSE( mo );
1845                         break;
1846 #endif
1847
1848                 case MO_GROUP_OC:
1849                         if ( mo->mo_oc_group != NULL ){
1850                                 value_add_one( &c->rvalue_vals, &mo->mo_oc_group->soc_cname );
1851                         }
1852                         break;
1853
1854                 case MO_MEMBER_AD:
1855                         if ( mo->mo_ad_member != NULL ){
1856                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_member->ad_cname );
1857                         }
1858                         break;
1859
1860                 case MO_MEMBER_OF_AD:
1861                         if ( mo->mo_ad_memberof != NULL ){
1862                                 value_add_one( &c->rvalue_vals, &mo->mo_ad_memberof->ad_cname );
1863                         }
1864                         break;
1865
1866                 default:
1867                         assert( 0 );
1868                         return 1;
1869                 }
1870
1871                 return rc;
1872
1873         } else if ( c->op == LDAP_MOD_DELETE ) {
1874                 return 1;       /* FIXME */
1875
1876         } else {
1877                 switch( c->type ) {
1878                 case MO_DN:
1879                         if ( !BER_BVISNULL( &mo->mo_dn ) ) {
1880                                 ber_memfree( mo->mo_dn.bv_val );
1881                                 ber_memfree( mo->mo_ndn.bv_val );
1882                         }
1883                         mo->mo_dn = c->value_dn;
1884                         mo->mo_ndn = c->value_ndn;
1885                         break;
1886
1887                 case MO_DANGLING:
1888                         i = verb_to_mask( c->argv[ 1 ], dangling_mode );
1889                         if ( BER_BVISNULL( &dangling_mode[ i ].word ) ) {
1890                                 return 1;
1891                         }
1892
1893                         mo->mo_flags &= ~MEMBEROF_FDANGLING_MASK;
1894                         mo->mo_flags |= dangling_mode[ i ].mask;
1895                         break;
1896
1897                 case MO_DANGLING_ERROR:
1898                         i = verb_to_mask( c->argv[ 1 ], slap_ldap_response_code );
1899                         if ( !BER_BVISNULL( &slap_ldap_response_code[ i ].word ) ) {
1900                                 mo->mo_dangling_err = slap_ldap_response_code[ i ].mask;
1901                         } else if ( lutil_atoix( &mo->mo_dangling_err, c->argv[ 1 ], 0 ) ) {
1902                                 return 1;
1903                         }
1904                         break;
1905
1906                 case MO_REFINT:
1907                         if ( c->value_int ) {
1908                                 mo->mo_flags |= MEMBEROF_FREFINT;
1909
1910                         } else {
1911                                 mo->mo_flags &= ~MEMBEROF_FREFINT;
1912                         }
1913                         break;
1914
1915 #if 0
1916                 case MO_REVERSE:
1917                         if ( c->value_int ) {
1918                                 mo->mo_flags |= MEMBEROF_FREVERSE;
1919
1920                         } else {
1921                                 mo->mo_flags &= ~MEMBEROF_FREVERSE;
1922                         }
1923                         break;
1924 #endif
1925
1926                 case MO_GROUP_OC: {
1927                         ObjectClass     *oc = NULL;
1928
1929                         oc = oc_find( c->argv[ 1 ] );
1930                         if ( oc == NULL ) {
1931                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1932                                         "unable to find group objectClass=\"%s\"",
1933                                         c->argv[ 1 ] );
1934                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1935                                         c->log, c->cr_msg, 0 );
1936                                 return 1;
1937                         }
1938
1939                         mo->mo_oc_group = oc;
1940                         memberof_make_group_filter( mo );
1941                         } break;
1942
1943                 case MO_MEMBER_AD: {
1944                         AttributeDescription    *ad = NULL;
1945                         const char              *text = NULL;
1946
1947
1948                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1949                         if ( rc != LDAP_SUCCESS ) {
1950                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1951                                         "unable to find member attribute=\"%s\": %s (%d)",
1952                                         c->argv[ 1 ], text, rc );
1953                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1954                                         c->log, c->cr_msg, 0 );
1955                                 return 1;
1956                         }
1957
1958                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1959                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1960                         {
1961                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1962                                         "member attribute=\"%s\" must either "
1963                                         "have DN (%s) or nameUID (%s) syntax",
1964                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1965                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1966                                         c->log, c->cr_msg, 0 );
1967                                 return 1;
1968                         }
1969
1970                         mo->mo_ad_member = ad;
1971                         } break;
1972
1973                 case MO_MEMBER_OF_AD: {
1974                         AttributeDescription    *ad = NULL;
1975                         const char              *text = NULL;
1976
1977
1978                         rc = slap_str2ad( c->argv[ 1 ], &ad, &text );
1979                         if ( rc != LDAP_SUCCESS ) {
1980                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1981                                         "unable to find memberof attribute=\"%s\": %s (%d)",
1982                                         c->argv[ 1 ], text, rc );
1983                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1984                                         c->log, c->cr_msg, 0 );
1985                                 return 1;
1986                         }
1987
1988                         if ( !is_at_syntax( ad->ad_type, SLAPD_DN_SYNTAX )              /* e.g. "member" */
1989                                 && !is_at_syntax( ad->ad_type, SLAPD_NAMEUID_SYNTAX ) ) /* e.g. "uniqueMember" */
1990                         {
1991                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
1992                                         "memberof attribute=\"%s\" must either "
1993                                         "have DN (%s) or nameUID (%s) syntax",
1994                                         c->argv[ 1 ], SLAPD_DN_SYNTAX, SLAPD_NAMEUID_SYNTAX );
1995                                 Debug( LDAP_DEBUG_CONFIG, "%s: %s.\n",
1996                                         c->log, c->cr_msg, 0 );
1997                                 return 1;
1998                         }
1999
2000                         mo->mo_ad_memberof = ad;
2001                         memberof_make_member_filter( mo );
2002                         } break;
2003
2004                 default:
2005                         assert( 0 );
2006                         return 1;
2007                 }
2008         }
2009
2010         return 0;
2011 }
2012
2013 static int
2014 memberof_db_open(
2015         BackendDB       *be,
2016         ConfigReply     *cr )
2017 {
2018         slap_overinst   *on = (slap_overinst *)be->bd_info;
2019         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
2020
2021         int             rc;
2022         const char      *text = NULL;
2023
2024         if( ! mo->mo_ad_memberof ){
2025                 rc = slap_str2ad( SLAPD_MEMBEROF_ATTR, &mo->mo_ad_memberof, &text );
2026                 if ( rc != LDAP_SUCCESS ) {
2027                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
2028                                         "unable to find attribute=\"%s\": %s (%d)\n",
2029                                         SLAPD_MEMBEROF_ATTR, text, rc );
2030                         return rc;
2031                 }
2032         }
2033
2034         if( ! mo->mo_ad_member ){
2035                 rc = slap_str2ad( SLAPD_GROUP_ATTR, &mo->mo_ad_member, &text );
2036                 if ( rc != LDAP_SUCCESS ) {
2037                         Debug( LDAP_DEBUG_ANY, "memberof_db_open: "
2038                                         "unable to find attribute=\"%s\": %s (%d)\n",
2039                                         SLAPD_GROUP_ATTR, text, rc );
2040                         return rc;
2041                 }
2042         }
2043
2044         if( ! mo->mo_oc_group ){
2045                 mo->mo_oc_group = oc_find( SLAPD_GROUP_CLASS );
2046                 if ( mo->mo_oc_group == NULL ) {
2047                         Debug( LDAP_DEBUG_ANY,
2048                                         "memberof_db_open: "
2049                                         "unable to find objectClass=\"%s\"\n",
2050                                         SLAPD_GROUP_CLASS, 0, 0 );
2051                         return 1;
2052                 }
2053         }
2054
2055         if ( BER_BVISNULL( &mo->mo_dn ) && !BER_BVISNULL( &be->be_rootdn ) ) {
2056                 ber_dupbv( &mo->mo_dn, &be->be_rootdn );
2057                 ber_dupbv( &mo->mo_ndn, &be->be_rootndn );
2058         }
2059
2060         if ( BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
2061                 memberof_make_group_filter( mo );
2062         }
2063
2064         if ( BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
2065                 memberof_make_member_filter( mo );
2066         }
2067
2068         return 0;
2069 }
2070
2071 static int
2072 memberof_db_destroy(
2073         BackendDB       *be,
2074         ConfigReply     *cr )
2075 {
2076         slap_overinst   *on = (slap_overinst *)be->bd_info;
2077         memberof_t      *mo = (memberof_t *)on->on_bi.bi_private;
2078
2079         if ( mo ) {
2080                 if ( !BER_BVISNULL( &mo->mo_dn ) ) {
2081                         ber_memfree( mo->mo_dn.bv_val );
2082                         ber_memfree( mo->mo_ndn.bv_val );
2083                 }
2084
2085                 if ( !BER_BVISNULL( &mo->mo_groupFilterstr ) ) {
2086                         ber_memfree( mo->mo_groupFilterstr.bv_val );
2087                 }
2088
2089                 if ( !BER_BVISNULL( &mo->mo_memberFilterstr ) ) {
2090                         ber_memfree( mo->mo_memberFilterstr.bv_val );
2091                 }
2092
2093                 ber_memfree( mo );
2094         }
2095
2096         return 0;
2097 }
2098
2099 /* unused */
2100 static AttributeDescription     *ad_memberOf;
2101
2102 static struct {
2103         char    *desc;
2104         AttributeDescription **adp;
2105 } as[] = {
2106         { "( 1.2.840.113556.1.2.102 "
2107                 "NAME 'memberOf' "
2108                 "DESC 'Group that the entry belongs to' "
2109                 "SYNTAX '1.3.6.1.4.1.1466.115.121.1.12' "
2110                 "EQUALITY distinguishedNameMatch "      /* added */
2111                 "USAGE dSAOperation "                   /* added; questioned */
2112                 /* "NO-USER-MODIFICATION " */           /* add? */
2113                 "X-ORIGIN 'iPlanet Delegated Administrator' )",
2114                 &ad_memberOf },
2115         { NULL }
2116 };
2117
2118 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2119 static
2120 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2121 int
2122 memberof_initialize( void )
2123 {
2124         int                     code, i;
2125
2126         for ( i = 0; as[ i ].desc != NULL; i++ ) {
2127                 code = register_at( as[ i ].desc, as[ i ].adp, 0 );
2128                 if ( code ) {
2129                         Debug( LDAP_DEBUG_ANY,
2130                                 "memberof_initialize: register_at #%d failed\n",
2131                                 i, 0, 0 );
2132                         return code;
2133                 }
2134         }
2135
2136         memberof.on_bi.bi_type = "memberof";
2137
2138         memberof.on_bi.bi_db_init = memberof_db_init;
2139         memberof.on_bi.bi_db_open = memberof_db_open;
2140         memberof.on_bi.bi_db_destroy = memberof_db_destroy;
2141
2142         memberof.on_bi.bi_op_add = memberof_op_add;
2143         memberof.on_bi.bi_op_delete = memberof_op_delete;
2144         memberof.on_bi.bi_op_modify = memberof_op_modify;
2145         memberof.on_bi.bi_op_modrdn = memberof_op_modrdn;
2146
2147         memberof.on_bi.bi_cf_ocs = mo_ocs;
2148
2149         code = config_register_schema( mo_cfg, mo_ocs );
2150         if ( code ) return code;
2151
2152         return overlay_register( &memberof );
2153 }
2154
2155 #if SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC
2156 int
2157 init_module( int argc, char *argv[] )
2158 {
2159         return memberof_initialize();
2160 }
2161 #endif /* SLAPD_OVER_MEMBEROF == SLAPD_MOD_DYNAMIC */
2162
2163 #endif /* SLAPD_OVER_MEMBEROF */