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

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2005 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15
  16 #include "portable.h"
  17
  18 #include <stdio.h>
  19
  20 #include <ac/string.h>
  21 #include <ac/socket.h>
  22
  23 #include "slap.h"
  24
  25 #include "../../libraries/liblber/lber-int.h"
  26
  27 static SLAP_CTRL_PARSE_FN parseAssert;
  28 static SLAP_CTRL_PARSE_FN parsePreRead;
  29 static SLAP_CTRL_PARSE_FN parsePostRead;
  30 static SLAP_CTRL_PARSE_FN parseProxyAuthz;
  31 static SLAP_CTRL_PARSE_FN parseManageDSAit;
  32 static SLAP_CTRL_PARSE_FN parseModifyIncrement;
  33 static SLAP_CTRL_PARSE_FN parseNoOp;
  34 static SLAP_CTRL_PARSE_FN parsePagedResults;
  35 static SLAP_CTRL_PARSE_FN parseValuesReturnFilter;
  36 static SLAP_CTRL_PARSE_FN parsePermissiveModify;
  37 static SLAP_CTRL_PARSE_FN parseDomainScope;
  38 static SLAP_CTRL_PARSE_FN parseTreeDelete;
  39 static SLAP_CTRL_PARSE_FN parseSearchOptions;
  40 static SLAP_CTRL_PARSE_FN parseSubentries;
  41
  42 #undef sc_mask /* avoid conflict with Irix 6.5 <sys/signal.h> */
  43
  44 const struct berval slap_pre_read_bv = BER_BVC(LDAP_CONTROL_PRE_READ);
  45 const struct berval slap_post_read_bv = BER_BVC(LDAP_CONTROL_POST_READ);
  46
  47 struct slap_control_ids slap_cids;
  48
  49 struct slap_control {
  50         /* Control OID */
  51         char *sc_oid;
  52
  53         /* The controlID for this control */
  54         int sc_cid;
  55
  56         /* Operations supported by control */
  57         slap_mask_t sc_mask;
  58
  59         /* Extended operations supported by control */
  60         char **sc_extendedops;
  61
  62         /* Control parsing callback */
  63         SLAP_CTRL_PARSE_FN *sc_parse;
  64
  65         LDAP_SLIST_ENTRY(slap_control) sc_next;
  66 };
  67
  68 static LDAP_SLIST_HEAD(ControlsList, slap_control) controls_list
  69         = LDAP_SLIST_HEAD_INITIALIZER(&controls_list);
  70
  71 /*
  72  * all known request control OIDs should be added to this list
  73  */
  74 /*
  75  * NOTE: initialize num_known_controls to 1 so that cid = 0 always
  76  * addresses an undefined control; this allows to safely test for
  77  * well known controls even if they are not registered, e.g. if
  78  * they get moved to modules.  An example is sc_LDAPsync, which
  79  * is implemented in the syncprov overlay and thus, if configured
  80  * as dynamic module, may not be registered.  One side effect is that
  81  * slap_known_controls[0] == NULL, so it should always be used
  82  * starting from 1.
  83  * FIXME: should we define the "undefined control" oid?
  84  */
  85 char *slap_known_controls[SLAP_MAX_CIDS+1];
  86 static int num_known_controls = 1;
  87
  88 static char *proxy_authz_extops[] = {
  89         LDAP_EXOP_MODIFY_PASSWD,
  90         LDAP_EXOP_X_WHO_AM_I,
  91         NULL
  92 };
  93
  94 static struct slap_control control_defs[] = {
  95         {  LDAP_CONTROL_ASSERT,
  96                 (int)offsetof(struct slap_control_ids, sc_assert),
  97                 SLAP_CTRL_HIDE|SLAP_CTRL_ACCESS, NULL,
  98                 parseAssert, LDAP_SLIST_ENTRY_INITIALIZER(next) },
  99         { LDAP_CONTROL_PRE_READ,
 100                 (int)offsetof(struct slap_control_ids, sc_preRead),
 101                 SLAP_CTRL_HIDE|SLAP_CTRL_DELETE|SLAP_CTRL_MODIFY|SLAP_CTRL_RENAME, NULL,
 102                 parsePreRead, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 103         { LDAP_CONTROL_POST_READ,
 104                 (int)offsetof(struct slap_control_ids, sc_postRead),
 105                 SLAP_CTRL_HIDE|SLAP_CTRL_ADD|SLAP_CTRL_MODIFY|SLAP_CTRL_RENAME, NULL,
 106                 parsePostRead, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 107         { LDAP_CONTROL_VALUESRETURNFILTER,
 108                 (int)offsetof(struct slap_control_ids, sc_valuesReturnFilter),
 109                 SLAP_CTRL_GLOBAL|SLAP_CTRL_SEARCH, NULL,
 110                 parseValuesReturnFilter, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 111         { LDAP_CONTROL_PAGEDRESULTS,
 112                 (int)offsetof(struct slap_control_ids, sc_pagedResults),
 113                 SLAP_CTRL_SEARCH, NULL,
 114                 parsePagedResults, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 115 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
 116         { LDAP_CONTROL_X_DOMAIN_SCOPE,
 117                 (int)offsetof(struct slap_control_ids, sc_domainScope),
 118                 SLAP_CTRL_GLOBAL|SLAP_CTRL_SEARCH, NULL,
 119                 parseDomainScope, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 120 #endif
 121 #ifdef LDAP_CONTROL_X_PERMISSIVE_MODIFY
 122         { LDAP_CONTROL_X_PERMISSIVE_MODIFY,
 123                 (int)offsetof(struct slap_control_ids, sc_permissiveModify),
 124                 SLAP_CTRL_MODIFY, NULL,
 125                 parsePermissiveModify, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 126 #endif
 127 #ifdef SLAP_CONTROL_X_TREE_DELETE
 128         { LDAP_CONTROL_X_TREE_DELETE,
 129                 (int)offsetof(struct slap_control_ids, sc_treeDelete),
 130                 SLAP_CTRL_HIDE|SLAP_CTRL_DELETE, NULL,
 131                 parseTreeDelete, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 132 #endif
 133 #ifdef LDAP_CONTORL_X_SEARCH_OPTIONS
 134         { LDAP_CONTORL_X_SEARCH_OPTIONS,
 135                 (int)offsetof(struct slap_control_ids, sc_searchOptions),
 136                 SLAP_CTRL_GLOBAL|SLAP_CTRL_SEARCH, NULL,
 137                 parseSearchOptions, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 138 #endif
 139 #ifdef LDAP_CONTROL_SUBENTRIES
 140         { LDAP_CONTROL_SUBENTRIES,
 141                 (int)offsetof(struct slap_control_ids, sc_subentries),
 142                 SLAP_CTRL_SEARCH, NULL,
 143                 parseSubentries, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 144 #endif
 145         { LDAP_CONTROL_NOOP,
 146                 (int)offsetof(struct slap_control_ids, sc_noOp),
 147                 SLAP_CTRL_HIDE|SLAP_CTRL_ACCESS, NULL,
 148                 parseNoOp, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 149 #ifdef LDAP_CONTROL_MODIFY_INCREMENT
 150         { LDAP_CONTROL_MODIFY_INCREMENT,
 151                 (int)offsetof(struct slap_control_ids, sc_modifyIncrement),
 152                 SLAP_CTRL_HIDE|SLAP_CTRL_MODIFY, NULL,
 153                 parseModifyIncrement, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 154 #endif
 155         { LDAP_CONTROL_MANAGEDSAIT,
 156                 (int)offsetof(struct slap_control_ids, sc_manageDSAit),
 157                 SLAP_CTRL_ACCESS, NULL,
 158                 parseManageDSAit, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 159         { LDAP_CONTROL_PROXY_AUTHZ,
 160                 (int)offsetof(struct slap_control_ids, sc_proxyAuthz),
 161                 SLAP_CTRL_GLOBAL|SLAP_CTRL_ACCESS, proxy_authz_extops,
 162                 parseProxyAuthz, LDAP_SLIST_ENTRY_INITIALIZER(next) },
 163         { NULL, 0, 0, NULL, 0, LDAP_SLIST_ENTRY_INITIALIZER(next) }
 164 };
 165
 166 /*
 167  * Register a supported control.
 168  *
 169  * This can be called by an OpenLDAP plugin or, indirectly, by a
 170  * SLAPI plugin calling slapi_register_supported_control().
 171  */
 172 int
 173 register_supported_control(const char *controloid,
 174         slap_mask_t controlmask,
 175         char **controlexops,
 176         SLAP_CTRL_PARSE_FN *controlparsefn,
 177         int *controlcid)
 178 {
 179         struct slap_control *sc;
 180         int i;
 181
 182         if ( num_known_controls >= SLAP_MAX_CIDS ) {
 183                 Debug( LDAP_DEBUG_ANY, "Too many controls registered."
 184                         " Recompile slapd with SLAP_MAX_CIDS defined > %d\n",
 185                 SLAP_MAX_CIDS, 0, 0 );
 186                 return LDAP_OTHER;
 187         }
 188
 189         if ( controloid == NULL ) return LDAP_PARAM_ERROR;
 190
 191         /* sanity check - should never happen */
 192         for ( i = 0; slap_known_controls[ i ]; i++ ) {
 193                 if ( strcmp( controloid, slap_known_controls[ i ] ) == 0 ) {
 194                         Debug( LDAP_DEBUG_ANY,
 195                                 "Control %s already registered.\n",
 196                                 controloid, 0, 0 );
 197                         return LDAP_PARAM_ERROR;
 198                 }
 199         }
 200
 201         sc = (struct slap_control *)SLAP_MALLOC( sizeof( *sc ) );
 202         if ( sc == NULL ) return LDAP_NO_MEMORY;
 203
 204         sc->sc_oid = ch_strdup( controloid );
 205         sc->sc_mask = controlmask;
 206         if ( controlexops != NULL ) {
 207                 sc->sc_extendedops = ldap_charray_dup( controlexops );
 208                 if ( sc->sc_extendedops == NULL ) {
 209                         ch_free( sc );
 210                         return LDAP_NO_MEMORY;
 211                 }
 212         } else {
 213                 sc->sc_extendedops = NULL;
 214         }
 215         sc->sc_parse = controlparsefn;
 216
 217         if ( controlcid ) *controlcid = num_known_controls;
 218         sc->sc_cid = num_known_controls;
 219
 220         /* Update slap_known_controls, too. */
 221         slap_known_controls[num_known_controls-1] = sc->sc_oid;
 222         slap_known_controls[num_known_controls++] = NULL;
 223
 224         LDAP_SLIST_NEXT( sc, sc_next ) = NULL;
 225         LDAP_SLIST_INSERT_HEAD( &controls_list, sc, sc_next );
 226         return LDAP_SUCCESS;
 227 }
 228
 229 /*
 230  * One-time initialization of internal controls.
 231  */
 232 int
 233 slap_controls_init( void )
 234 {
 235         int i, rc;
 236         struct slap_control *sc;
 237
 238         rc = LDAP_SUCCESS;
 239
 240         for ( i = 0; control_defs[i].sc_oid != NULL; i++ ) {
 241                 int *cid = (int *)(((char *)&slap_cids) + control_defs[i].sc_cid );
 242                 rc = register_supported_control( control_defs[i].sc_oid,
 243                         control_defs[i].sc_mask, control_defs[i].sc_extendedops,
 244                         control_defs[i].sc_parse, cid );
 245                 if ( rc != LDAP_SUCCESS ) break;
 246         }
 247
 248         return rc;
 249 }
 250
 251 /*
 252  * Free memory associated with list of supported controls.
 253  */
 254 void
 255 controls_destroy( void )
 256 {
 257         struct slap_control *sc;
 258
 259         while ( !LDAP_SLIST_EMPTY(&controls_list) ) {
 260                 sc = LDAP_SLIST_FIRST(&controls_list);
 261                 LDAP_SLIST_REMOVE_HEAD(&controls_list, sc_next);
 262
 263                 ch_free( sc->sc_oid );
 264                 if ( sc->sc_extendedops != NULL ) {
 265                         ldap_charray_free( sc->sc_extendedops );
 266                 }
 267                 ch_free( sc );
 268         }
 269 }
 270
 271 /*
 272  * Format the supportedControl attribute of the root DSE,
 273  * detailing which controls are supported by the directory
 274  * server.
 275  */
 276 int
 277 controls_root_dse_info( Entry *e )
 278 {
 279         AttributeDescription *ad_supportedControl
 280                 = slap_schema.si_ad_supportedControl;
 281         struct berval vals[2];
 282         struct slap_control *sc;
 283
 284         vals[1].bv_val = NULL;
 285         vals[1].bv_len = 0;
 286
 287         LDAP_SLIST_FOREACH( sc, &controls_list, sc_next ) {
 288                 if( sc->sc_mask & SLAP_CTRL_HIDE ) continue;
 289
 290                 vals[0].bv_val = sc->sc_oid;
 291                 vals[0].bv_len = strlen( sc->sc_oid );
 292
 293                 if ( attr_merge( e, ad_supportedControl, vals, NULL ) ) {
 294                         return -1;
 295                 }
 296         }
 297
 298         return 0;
 299 }
 300
 301 /*
 302  * Return a list of OIDs and operation masks for supported
 303  * controls. Used by SLAPI.
 304  */
 305 int
 306 get_supported_controls(char ***ctrloidsp,
 307         slap_mask_t **ctrlmasks)
 308 {
 309         int i, n;
 310         char **oids;
 311         slap_mask_t *masks;
 312         int rc;
 313         struct slap_control *sc;
 314
 315         n = 0;
 316
 317         LDAP_SLIST_FOREACH( sc, &controls_list, sc_next ) {
 318                 n++;
 319         }
 320
 321         if ( n == 0 ) {
 322                 *ctrloidsp = NULL;
 323                 *ctrlmasks = NULL;
 324                 return LDAP_SUCCESS;
 325         }
 326
 327         oids = (char **)SLAP_MALLOC( (n + 1) * sizeof(char *) );
 328         if ( oids == NULL ) {
 329                 return LDAP_NO_MEMORY;
 330         }
 331         masks = (slap_mask_t *)SLAP_MALLOC( (n + 1) * sizeof(slap_mask_t) );
 332         if  ( masks == NULL ) {
 333                 ch_free( oids );
 334                 return LDAP_NO_MEMORY;
 335         }
 336
 337         n = 0;
 338
 339         LDAP_SLIST_FOREACH( sc, &controls_list, sc_next ) {
 340                 oids[n] = ch_strdup( sc->sc_oid );
 341                 masks[n] = sc->sc_mask;
 342                 n++;
 343         }
 344         oids[n] = NULL;
 345         masks[n] = 0;
 346
 347         *ctrloidsp = oids;
 348         *ctrlmasks = masks;
 349
 350         return LDAP_SUCCESS;
 351 }
 352
 353 /*
 354  * Find a control given its OID.
 355  */
 356 static struct slap_control *
 357 find_ctrl( const char *oid )
 358 {
 359         struct slap_control *sc;
 360
 361         LDAP_SLIST_FOREACH( sc, &controls_list, sc_next ) {
 362                 if ( strcmp( oid, sc->sc_oid ) == 0 ) {
 363                         return sc;
 364                 }
 365         }
 366
 367         return NULL;
 368 }
 369
 370 int
 371 slap_find_control_id(
 372         const char *oid,
 373         int *cid )
 374 {
 375         struct slap_control *ctrl = find_ctrl( oid );
 376         if ( ctrl ) {
 377                 if ( cid ) *cid = ctrl->sc_cid;
 378                 return LDAP_SUCCESS;
 379         }
 380         return LDAP_CONTROL_NOT_FOUND;
 381 }
 382
 383 int
 384 slap_global_control( Operation *op, const char *oid, int *cid )
 385 {
 386         struct slap_control *ctrl = find_ctrl( oid );
 387
 388         if ( ctrl == NULL ) {
 389                 /* should not be reachable */
 390                 Debug( LDAP_DEBUG_ANY,
 391                         "slap_global_control: unrecognized control: %s\n",
 392                         oid, 0, 0 );
 393                 return LDAP_CONTROL_NOT_FOUND;
 394         }
 395
 396         if ( cid ) *cid = ctrl->sc_cid;
 397
 398         if ( ( ctrl->sc_mask & SLAP_CTRL_GLOBAL ) ||
 399                         ( ( op->o_tag & LDAP_REQ_SEARCH ) &&
 400                         ( ctrl->sc_mask & SLAP_CTRL_GLOBAL_SEARCH ) ) )
 401         {
 402                 return LDAP_COMPARE_TRUE;
 403         }
 404
 405         Debug( LDAP_DEBUG_TRACE,
 406                 "slap_global_control: unavailable control: %s\n",
 407                 oid, 0, 0 );
 408
 409         return LDAP_COMPARE_FALSE;
 410 }
 411
 412 void slap_free_ctrls(
 413         Operation *op,
 414         LDAPControl **ctrls )
 415 {
 416         int i;
 417
 418         for (i=0; ctrls[i]; i++) {
 419                 op->o_tmpfree(ctrls[i], op->o_tmpmemctx );
 420         }
 421         op->o_tmpfree( ctrls, op->o_tmpmemctx );
 422 }
 423
 424 int get_ctrls(
 425         Operation *op,
 426         SlapReply *rs,
 427         int sendres )
 428 {
 429         int nctrls = 0;
 430         ber_tag_t tag;
 431         ber_len_t len;
 432         char *opaque;
 433         BerElement *ber = op->o_ber;
 434         struct slap_control *sc;
 435         struct berval bv;
 436
 437         len = ber_pvt_ber_remaining(ber);
 438
 439         if( len == 0) {
 440                 /* no controls */
 441                 rs->sr_err = LDAP_SUCCESS;
 442                 return rs->sr_err;
 443         }
 444
 445         if(( tag = ber_peek_tag( ber, &len )) != LDAP_TAG_CONTROLS ) {
 446                 if( tag == LBER_ERROR ) {
 447                         rs->sr_err = SLAPD_DISCONNECT;
 448                         rs->sr_text = "unexpected data in PDU";
 449                 }
 450
 451                 goto return_results;
 452         }
 453
 454         Debug( LDAP_DEBUG_TRACE,
 455                 "=> get_ctrls\n", 0, 0, 0 );
 456
 457         if( op->o_protocol < LDAP_VERSION3 ) {
 458                 rs->sr_err = SLAPD_DISCONNECT;
 459                 rs->sr_text = "controls require LDAPv3";
 460                 goto return_results;
 461         }
 462
 463         /* one for first control, one for termination */
 464         op->o_ctrls = op->o_tmpalloc( 2 * sizeof(LDAPControl *), op->o_tmpmemctx );
 465
 466 #if 0
 467         if( op->ctrls == NULL ) {
 468                 rs->sr_err = LDAP_NO_MEMORY;
 469                 rs->sr_text = "no memory";
 470                 goto return_results;
 471         }
 472 #endif
 473
 474         op->o_ctrls[nctrls] = NULL;
 475
 476         /* step through each element */
 477         for( tag = ber_first_element( ber, &len, &opaque );
 478                 tag != LBER_ERROR;
 479                 tag = ber_next_element( ber, &len, opaque ) )
 480         {
 481                 LDAPControl *c;
 482                 LDAPControl **tctrls;
 483
 484                 c = op->o_tmpalloc( sizeof(LDAPControl), op->o_tmpmemctx );
 485                 memset(c, 0, sizeof(LDAPControl));
 486
 487                 /* allocate pointer space for current controls (nctrls)
 488                  * + this control + extra NULL
 489                  */
 490                 tctrls = op->o_tmprealloc( op->o_ctrls,
 491                         (nctrls+2) * sizeof(LDAPControl *), op->o_tmpmemctx );
 492
 493 #if 0
 494                 if( tctrls == NULL ) {
 495                         ch_free( c );
 496                         ldap_controls_free(op->o_ctrls);
 497                         op->o_ctrls = NULL;
 498
 499                         rs->sr_err = LDAP_NO_MEMORY;
 500                         rs->sr_text = "no memory";
 501                         goto return_results;
 502                 }
 503 #endif
 504                 op->o_ctrls = tctrls;
 505
 506                 op->o_ctrls[nctrls++] = c;
 507                 op->o_ctrls[nctrls] = NULL;
 508
 509                 tag = ber_scanf( ber, "{m" /*}*/, &bv );
 510                 c->ldctl_oid = bv.bv_val;
 511
 512                 if( tag == LBER_ERROR ) {
 513                         Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: get oid failed.\n",
 514                                 0, 0, 0 );
 515
 516                         slap_free_ctrls( op, op->o_ctrls );
 517                         op->o_ctrls = NULL;
 518                         rs->sr_err = SLAPD_DISCONNECT;
 519                         rs->sr_text = "decoding controls error";
 520                         goto return_results;
 521
 522                 } else if( c->ldctl_oid == NULL ) {
 523                         Debug( LDAP_DEBUG_TRACE,
 524                                 "get_ctrls: conn %lu got emtpy OID.\n",
 525                                 op->o_connid, 0, 0 );
 526
 527                         slap_free_ctrls( op, op->o_ctrls );
 528                         op->o_ctrls = NULL;
 529                         rs->sr_err = LDAP_PROTOCOL_ERROR;
 530                         rs->sr_text = "OID field is empty";
 531                         goto return_results;
 532                 }
 533
 534                 tag = ber_peek_tag( ber, &len );
 535
 536                 if( tag == LBER_BOOLEAN ) {
 537                         ber_int_t crit;
 538                         tag = ber_scanf( ber, "b", &crit );
 539
 540                         if( tag == LBER_ERROR ) {
 541                                 Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: get crit failed.\n",
 542                                         0, 0, 0 );
 543                                 slap_free_ctrls( op, op->o_ctrls );
 544                                 op->o_ctrls = NULL;
 545                                 rs->sr_err = SLAPD_DISCONNECT;
 546                                 rs->sr_text = "decoding controls error";
 547                                 goto return_results;
 548                         }
 549
 550                         c->ldctl_iscritical = (crit != 0);
 551                         tag = ber_peek_tag( ber, &len );
 552                 }
 553
 554                 if( tag == LBER_OCTETSTRING ) {
 555                         tag = ber_scanf( ber, "m", &c->ldctl_value );
 556
 557                         if( tag == LBER_ERROR ) {
 558                                 Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: conn %lu: "
 559                                         "%s (%scritical): get value failed.\n",
 560                                         op->o_connid, c->ldctl_oid,
 561                                         c->ldctl_iscritical ? "" : "non" );
 562                                 slap_free_ctrls( op, op->o_ctrls );
 563                                 op->o_ctrls = NULL;
 564                                 rs->sr_err = SLAPD_DISCONNECT;
 565                                 rs->sr_text = "decoding controls error";
 566                                 goto return_results;
 567                         }
 568                 }
 569
 570                 Debug( LDAP_DEBUG_TRACE,
 571                         "=> get_ctrls: oid=\"%s\" (%scritical)\n",
 572                         c->ldctl_oid, c->ldctl_iscritical ? "" : "non", 0 );
 573
 574                 sc = find_ctrl( c->ldctl_oid );
 575                 if( sc != NULL ) {
 576                         /* recognized control */
 577                         slap_mask_t tagmask;
 578                         switch( op->o_tag ) {
 579                         case LDAP_REQ_ADD:
 580                                 tagmask = SLAP_CTRL_ADD;
 581                                 break;
 582                         case LDAP_REQ_BIND:
 583                                 tagmask = SLAP_CTRL_BIND;
 584                                 break;
 585                         case LDAP_REQ_COMPARE:
 586                                 tagmask = SLAP_CTRL_COMPARE;
 587                                 break;
 588                         case LDAP_REQ_DELETE:
 589                                 tagmask = SLAP_CTRL_DELETE;
 590                                 break;
 591                         case LDAP_REQ_MODIFY:
 592                                 tagmask = SLAP_CTRL_MODIFY;
 593                                 break;
 594                         case LDAP_REQ_RENAME:
 595                                 tagmask = SLAP_CTRL_RENAME;
 596                                 break;
 597                         case LDAP_REQ_SEARCH:
 598                                 tagmask = SLAP_CTRL_SEARCH;
 599                                 break;
 600                         case LDAP_REQ_UNBIND:
 601                                 tagmask = SLAP_CTRL_UNBIND;
 602                                 break;
 603                         case LDAP_REQ_ABANDON:
 604                                 tagmask = SLAP_CTRL_ABANDON;
 605                                 break;
 606                         case LDAP_REQ_EXTENDED:
 607                                 tagmask=~0L;
 608                                 assert( op->ore_reqoid.bv_val != NULL );
 609                                 if( sc->sc_extendedops != NULL ) {
 610                                         int i;
 611                                         for( i=0; sc->sc_extendedops[i] != NULL; i++ ) {
 612                                                 if( strcmp( op->ore_reqoid.bv_val,
 613                                                         sc->sc_extendedops[i] ) == 0 )
 614                                                 {
 615                                                         tagmask=0L;
 616                                                         break;
 617                                                 }
 618                                         }
 619                                 }
 620                                 break;
 621                         default:
 622                                 rs->sr_err = LDAP_OTHER;
 623                                 rs->sr_text = "controls internal error";
 624                                 goto return_results;
 625                         }
 626
 627                         if (( sc->sc_mask & tagmask ) == tagmask ) {
 628                                 /* available extension */
 629                                 int     rc;
 630
 631                                 if( !sc->sc_parse ) {
 632                                         rs->sr_err = LDAP_OTHER;
 633                                         rs->sr_text = "not yet implemented";
 634                                         goto return_results;
 635                                 }
 636
 637                                 rc = sc->sc_parse( op, rs, c );
 638                                 if ( rc ) {
 639                                         assert( rc != LDAP_UNAVAILABLE_CRITICAL_EXTENSION );
 640                                         rs->sr_err = rc;
 641                                         goto return_results;
 642                                 }
 643
 644                         } else if( c->ldctl_iscritical ) {
 645                                 /* unavailable CRITICAL control */
 646                                 rs->sr_err = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
 647                                 rs->sr_text = "critical extension is unavailable";
 648                                 goto return_results;
 649                         }
 650
 651                 } else if( c->ldctl_iscritical ) {
 652                         /* unrecognized CRITICAL control */
 653                         rs->sr_err = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
 654                         rs->sr_text = "critical extension is not recognized";
 655                         goto return_results;
 656                 }
 657 next_ctrl:;
 658         }
 659
 660 return_results:
 661         Debug( LDAP_DEBUG_TRACE,
 662                 "<= get_ctrls: n=%d rc=%d err=\"%s\"\n",
 663                 nctrls, rs->sr_err, rs->sr_text ? rs->sr_text : "");
 664
 665         if( sendres && rs->sr_err != LDAP_SUCCESS ) {
 666                 if( rs->sr_err == SLAPD_DISCONNECT ) {
 667                         rs->sr_err = LDAP_PROTOCOL_ERROR;
 668                         send_ldap_disconnect( op, rs );
 669                         rs->sr_err = SLAPD_DISCONNECT;
 670                 } else {
 671                         send_ldap_result( op, rs );
 672                 }
 673         }
 674
 675         return rs->sr_err;
 676 }
 677
 678 static int parseModifyIncrement (
 679         Operation *op,
 680         SlapReply *rs,
 681         LDAPControl *ctrl )
 682 {
 683 #if 0
 684         if ( op->o_modifyIncrement != SLAP_CONTROL_NONE ) {
 685                 rs->sr_text = "modifyIncrement control specified multiple times";
 686                 return LDAP_PROTOCOL_ERROR;
 687         }
 688 #endif
 689
 690         if ( ctrl->ldctl_value.bv_len ) {
 691                 rs->sr_text = "modifyIncrement control value not empty";
 692                 return LDAP_PROTOCOL_ERROR;
 693         }
 694
 695 #if 0
 696         op->o_modifyIncrement = ctrl->ldctl_iscritical
 697                 ? SLAP_CONTROL_CRITICAL
 698                 : SLAP_CONTROL_NONCRITICAL;
 699 #endif
 700
 701         return LDAP_SUCCESS;
 702 }
 703
 704 static int parseManageDSAit (
 705         Operation *op,
 706         SlapReply *rs,
 707         LDAPControl *ctrl )
 708 {
 709         if ( op->o_managedsait != SLAP_CONTROL_NONE ) {
 710                 rs->sr_text = "manageDSAit control specified multiple times";
 711                 return LDAP_PROTOCOL_ERROR;
 712         }
 713
 714         if ( ctrl->ldctl_value.bv_len ) {
 715                 rs->sr_text = "manageDSAit control value not empty";
 716                 return LDAP_PROTOCOL_ERROR;
 717         }
 718
 719         op->o_managedsait = ctrl->ldctl_iscritical
 720                 ? SLAP_CONTROL_CRITICAL
 721                 : SLAP_CONTROL_NONCRITICAL;
 722
 723         return LDAP_SUCCESS;
 724 }
 725
 726 static int parseProxyAuthz (
 727         Operation *op,
 728         SlapReply *rs,
 729         LDAPControl *ctrl )
 730 {
 731         int             rc;
 732         struct berval   dn = BER_BVNULL;
 733
 734         if ( op->o_proxy_authz != SLAP_CONTROL_NONE ) {
 735                 rs->sr_text = "proxy authorization control specified multiple times";
 736                 return LDAP_PROTOCOL_ERROR;
 737         }
 738
 739         op->o_proxy_authz = ctrl->ldctl_iscritical
 740                 ? SLAP_CONTROL_CRITICAL
 741                 : SLAP_CONTROL_NONCRITICAL;
 742
 743         Debug( LDAP_DEBUG_ARGS,
 744                 "parseProxyAuthz: conn %lu authzid=\"%s\"\n",
 745                 op->o_connid,
 746                 ctrl->ldctl_value.bv_len ?  ctrl->ldctl_value.bv_val : "anonymous",
 747                 0 );
 748
 749         if( ctrl->ldctl_value.bv_len == 0 ) {
 750                 Debug( LDAP_DEBUG_TRACE,
 751                         "parseProxyAuthz: conn=%lu anonymous\n",
 752                         op->o_connid, 0, 0 );
 753
 754                 /* anonymous */
 755                 free( op->o_dn.bv_val );
 756                 op->o_dn.bv_len = 0;
 757                 op->o_dn.bv_val = ch_strdup( "" );
 758
 759                 free( op->o_ndn.bv_val );
 760                 op->o_ndn.bv_len = 0;
 761                 op->o_ndn.bv_val = ch_strdup( "" );
 762
 763                 return LDAP_SUCCESS;
 764         }
 765
 766         rc = slap_sasl_getdn( op->o_conn, op, &ctrl->ldctl_value,
 767                         NULL, &dn, SLAP_GETDN_AUTHZID );
 768
 769         /* FIXME: empty DN in proxyAuthz control should be legal... */
 770         if( rc != LDAP_SUCCESS /* || !dn.bv_len */ ) {
 771                 if ( dn.bv_val ) {
 772                         ch_free( dn.bv_val );
 773                 }
 774                 rs->sr_text = "authzId mapping failed";
 775                 return LDAP_PROXY_AUTHZ_FAILURE;
 776         }
 777
 778         Debug( LDAP_DEBUG_TRACE,
 779                 "parseProxyAuthz: conn=%lu \"%s\"\n",
 780                 op->o_connid,
 781                 dn.bv_len ? dn.bv_val : "(NULL)", 0 );
 782
 783         rc = slap_sasl_authorized( op, &op->o_ndn, &dn );
 784
 785         if( rc ) {
 786                 ch_free( dn.bv_val );
 787                 rs->sr_text = "not authorized to assume identity";
 788                 return LDAP_PROXY_AUTHZ_FAILURE;
 789         }
 790
 791         ch_free( op->o_dn.bv_val );
 792         ch_free( op->o_ndn.bv_val );
 793
 794         op->o_dn.bv_val = NULL;
 795         op->o_ndn = dn;
 796
 797         Statslog( LDAP_DEBUG_STATS, "%s PROXYAUTHZ dn=\"%s\"\n",
 798             op->o_log_prefix, dn.bv_val, 0, 0, 0 );
 799
 800         /*
 801          * NOTE: since slap_sasl_getdn() returns a normalized dn,
 802          * from now on op->o_dn is normalized
 803          */
 804         ber_dupbv( &op->o_dn, &dn );
 805
 806         return LDAP_SUCCESS;
 807 }
 808
 809 static int parseNoOp (
 810         Operation *op,
 811         SlapReply *rs,
 812         LDAPControl *ctrl )
 813 {
 814         if ( op->o_noop != SLAP_CONTROL_NONE ) {
 815                 rs->sr_text = "noop control specified multiple times";
 816                 return LDAP_PROTOCOL_ERROR;
 817         }
 818
 819         if ( ctrl->ldctl_value.bv_len ) {
 820                 rs->sr_text = "noop control value not empty";
 821                 return LDAP_PROTOCOL_ERROR;
 822         }
 823
 824         op->o_noop = ctrl->ldctl_iscritical
 825                 ? SLAP_CONTROL_CRITICAL
 826                 : SLAP_CONTROL_NONCRITICAL;
 827
 828         return LDAP_SUCCESS;
 829 }
 830
 831 static int parsePagedResults (
 832         Operation *op,
 833         SlapReply *rs,
 834         LDAPControl *ctrl )
 835 {
 836         int             rc = LDAP_SUCCESS;
 837         ber_tag_t       tag;
 838         ber_int_t       size;
 839         BerElement      *ber;
 840         struct berval   cookie = BER_BVNULL;
 841         PagedResultsState       *ps;
 842
 843         if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
 844                 rs->sr_text = "paged results control specified multiple times";
 845                 return LDAP_PROTOCOL_ERROR;
 846         }
 847
 848         if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
 849                 rs->sr_text = "paged results control value is empty (or absent)";
 850                 return LDAP_PROTOCOL_ERROR;
 851         }
 852
 853         /* Parse the control value
 854          *      realSearchControlValue ::= SEQUENCE {
 855          *              size    INTEGER (0..maxInt),
 856          *                              -- requested page size from client
 857          *                              -- result set size estimate from server
 858          *              cookie  OCTET STRING
 859          * }
 860          */
 861         ber = ber_init( &ctrl->ldctl_value );
 862         if ( ber == NULL ) {
 863                 rs->sr_text = "internal error";
 864                 return LDAP_OTHER;
 865         }
 866
 867         tag = ber_scanf( ber, "{im}", &size, &cookie );
 868
 869         if ( tag == LBER_ERROR ) {
 870                 rs->sr_text = "paged results control could not be decoded";
 871                 rc = LDAP_PROTOCOL_ERROR;
 872                 goto done;
 873         }
 874
 875         if ( size < 0 ) {
 876                 rs->sr_text = "paged results control size invalid";
 877                 rc = LDAP_PROTOCOL_ERROR;
 878                 goto done;
 879         }
 880
 881 #if 0
 882         /* defer cookie decoding/checks to backend... */
 883         if ( cookie.bv_len ) {
 884                 PagedResultsCookie reqcookie;
 885                 if( cookie.bv_len != sizeof( reqcookie ) ) {
 886                         /* bad cookie */
 887                         rs->sr_text = "paged results cookie is invalid";
 888                         rc = LDAP_PROTOCOL_ERROR;
 889                         goto done;
 890                 }
 891
 892                 AC_MEMCPY( &reqcookie, cookie.bv_val, sizeof( reqcookie ));
 893
 894                 if ( reqcookie > op->o_pagedresults_state.ps_cookie ) {
 895                         /* bad cookie */
 896                         rs->sr_text = "paged results cookie is invalid";
 897                         rc = LDAP_PROTOCOL_ERROR;
 898                         goto done;
 899
 900                 } else if ( reqcookie < op->o_pagedresults_state.ps_cookie ) {
 901                         rs->sr_text = "paged results cookie is invalid or old";
 902                         rc = LDAP_UNWILLING_TO_PERFORM;
 903                         goto done;
 904                 }
 905
 906         } else {
 907                 /* Initial request.  Initialize state. */
 908 #if 0
 909                 if ( op->o_conn->c_pagedresults_state.ps_cookie != 0 ) {
 910                         /* There's another pagedResults control on the
 911                          * same connection; reject new pagedResults controls
 912                          * (allowed by RFC2696) */
 913                         rs->sr_text = "paged results cookie unavailable; try later";
 914                         rc = LDAP_UNWILLING_TO_PERFORM;
 915                         goto done;
 916                 }
 917 #endif
 918                 op->o_pagedresults_state.ps_cookie = 0;
 919                 op->o_pagedresults_state.ps_count = 0;
 920         }
 921 #endif
 922
 923         ps = op->o_tmpalloc( sizeof(PagedResultsState), op->o_tmpmemctx );
 924         *ps = op->o_conn->c_pagedresults_state;
 925         ps->ps_size = size;
 926         op->o_pagedresults_state = ps;
 927
 928         /* NOTE: according to RFC 2696 3.:
 929
 930     If the page size is greater than or equal to the sizeLimit value, the
 931     server should ignore the control as the request can be satisfied in a
 932     single page.
 933
 934          * NOTE: this assumes that the op->ors_slimit be set
 935          * before the controls are parsed.
 936          */
 937
 938         if ( op->ors_slimit > 0 && size >= op->ors_slimit ) {
 939                 op->o_pagedresults = SLAP_CONTROL_IGNORED;
 940
 941         } else if ( ctrl->ldctl_iscritical ) {
 942                 op->o_pagedresults = SLAP_CONTROL_CRITICAL;
 943
 944         } else {
 945                 op->o_pagedresults = SLAP_CONTROL_NONCRITICAL;
 946         }
 947
 948 done:;
 949         (void)ber_free( ber, 1 );
 950         return rc;
 951 }
 952
 953 static int parseAssert (
 954         Operation *op,
 955         SlapReply *rs,
 956         LDAPControl *ctrl )
 957 {
 958         BerElement      *ber;
 959         struct berval   fstr = BER_BVNULL;
 960         const char *err_msg = "";
 961
 962         if ( op->o_assert != SLAP_CONTROL_NONE ) {
 963                 rs->sr_text = "assert control specified multiple times";
 964                 return LDAP_PROTOCOL_ERROR;
 965         }
 966
 967         if ( ctrl->ldctl_value.bv_len == 0 ) {
 968                 rs->sr_text = "assert control value is empty (or absent)";
 969                 return LDAP_PROTOCOL_ERROR;
 970         }
 971
 972         ber = ber_init( &(ctrl->ldctl_value) );
 973         if (ber == NULL) {
 974                 rs->sr_text = "assert control: internal error";
 975                 return LDAP_OTHER;
 976         }
 977
 978         rs->sr_err = get_filter( op, ber, (Filter **)&(op->o_assertion), &rs->sr_text);
 979
 980         if( rs->sr_err != LDAP_SUCCESS ) {
 981                 if( rs->sr_err == SLAPD_DISCONNECT ) {
 982                         rs->sr_err = LDAP_PROTOCOL_ERROR;
 983                         send_ldap_disconnect( op, rs );
 984                         rs->sr_err = SLAPD_DISCONNECT;
 985                 } else {
 986                         send_ldap_result( op, rs );
 987                 }
 988                 if( op->o_assertion != NULL ) {
 989                         filter_free_x( op, op->o_assertion );
 990                 }
 991                 return rs->sr_err;
 992         }
 993
 994 #ifdef LDAP_DEBUG
 995         filter2bv_x( op, op->o_assertion, &fstr );
 996
 997         Debug( LDAP_DEBUG_ARGS, "parseAssert: conn %ld assert: %s\n",
 998                 op->o_connid, fstr.bv_len ? fstr.bv_val : "empty" , 0 );
 999         op->o_tmpfree( fstr.bv_val, op->o_tmpmemctx );
1000 #endif
1001
1002         op->o_assert = ctrl->ldctl_iscritical
1003                 ? SLAP_CONTROL_CRITICAL
1004                 : SLAP_CONTROL_NONCRITICAL;
1005
1006         rs->sr_err = LDAP_SUCCESS;
1007         return LDAP_SUCCESS;
1008 }
1009
1010 static int parsePreRead (
1011         Operation *op,
1012         SlapReply *rs,
1013         LDAPControl *ctrl )
1014 {
1015         ber_len_t siz, off, i;
1016         AttributeName *an = NULL;
1017         BerElement      *ber;
1018
1019         if ( op->o_preread != SLAP_CONTROL_NONE ) {
1020                 rs->sr_text = "preread control specified multiple times";
1021                 return LDAP_PROTOCOL_ERROR;
1022         }
1023
1024         if ( ctrl->ldctl_value.bv_len == 0 ) {
1025                 rs->sr_text = "preread control value is empty (or absent)";
1026                 return LDAP_PROTOCOL_ERROR;
1027         }
1028
1029         ber = ber_init( &(ctrl->ldctl_value) );
1030         if (ber == NULL) {
1031                 rs->sr_text = "preread control: internal error";
1032                 return LDAP_OTHER;
1033         }
1034
1035         siz = sizeof( AttributeName );
1036         off = offsetof( AttributeName, an_name );
1037         if ( ber_scanf( ber, "{M}", &an, &siz, off ) == LBER_ERROR ) {
1038                 rs->sr_text = "preread control: decoding error";
1039                 return LDAP_PROTOCOL_ERROR;
1040         }
1041
1042         for( i=0; i<siz; i++ ) {
1043                 int             rc = LDAP_SUCCESS;
1044                 const char      *dummy = NULL;
1045
1046                 an[i].an_desc = NULL;
1047                 an[i].an_oc = NULL;
1048                 an[i].an_oc_exclude = 0;
1049                 rc = slap_bv2ad( &an[i].an_name, &an[i].an_desc, &dummy );
1050                 if ( rc != LDAP_SUCCESS && ctrl->ldctl_iscritical ) {
1051                         rs->sr_text = dummy
1052                                 ? dummy
1053                                 : "postread control: unknown attributeType";
1054                         return rc;
1055                 }
1056         }
1057
1058         op->o_preread = ctrl->ldctl_iscritical
1059                 ? SLAP_CONTROL_CRITICAL
1060                 : SLAP_CONTROL_NONCRITICAL;
1061
1062         op->o_preread_attrs = an;
1063
1064         rs->sr_err = LDAP_SUCCESS;
1065         return LDAP_SUCCESS;
1066 }
1067
1068 static int parsePostRead (
1069         Operation *op,
1070         SlapReply *rs,
1071         LDAPControl *ctrl )
1072 {
1073         ber_len_t siz, off, i;
1074         AttributeName *an = NULL;
1075         BerElement      *ber;
1076
1077         if ( op->o_postread != SLAP_CONTROL_NONE ) {
1078                 rs->sr_text = "postread control specified multiple times";
1079                 return LDAP_PROTOCOL_ERROR;
1080         }
1081
1082         if ( ctrl->ldctl_value.bv_len == 0 ) {
1083                 rs->sr_text = "postread control value is empty (or absent)";
1084                 return LDAP_PROTOCOL_ERROR;
1085         }
1086
1087         ber = ber_init( &(ctrl->ldctl_value) );
1088         if (ber == NULL) {
1089                 rs->sr_text = "postread control: internal error";
1090                 return LDAP_OTHER;
1091         }
1092
1093         siz = sizeof( AttributeName );
1094         off = offsetof( AttributeName, an_name );
1095         if ( ber_scanf( ber, "{M}", &an, &siz, off ) == LBER_ERROR ) {
1096                 rs->sr_text = "postread control: decoding error";
1097                 return LDAP_PROTOCOL_ERROR;
1098         }
1099
1100         for( i=0; i<siz; i++ ) {
1101                 int             rc = LDAP_SUCCESS;
1102                 const char      *dummy = NULL;
1103
1104                 an[i].an_desc = NULL;
1105                 an[i].an_oc = NULL;
1106                 an[i].an_oc_exclude = 0;
1107                 rc = slap_bv2ad( &an[i].an_name, &an[i].an_desc, &dummy );
1108                 if ( rc != LDAP_SUCCESS && ctrl->ldctl_iscritical ) {
1109                         rs->sr_text = dummy
1110                                 ? dummy
1111                                 : "postread control: unknown attributeType";
1112                         return rc;
1113                 }
1114         }
1115
1116         op->o_postread = ctrl->ldctl_iscritical
1117                 ? SLAP_CONTROL_CRITICAL
1118                 : SLAP_CONTROL_NONCRITICAL;
1119
1120         op->o_postread_attrs = an;
1121
1122         rs->sr_err = LDAP_SUCCESS;
1123         return LDAP_SUCCESS;
1124 }
1125
1126 int parseValuesReturnFilter (
1127         Operation *op,
1128         SlapReply *rs,
1129         LDAPControl *ctrl )
1130 {
1131         BerElement      *ber;
1132         struct berval   fstr = BER_BVNULL;
1133         const char *err_msg = "";
1134
1135         if ( op->o_valuesreturnfilter != SLAP_CONTROL_NONE ) {
1136                 rs->sr_text = "valuesReturnFilter control specified multiple times";
1137                 return LDAP_PROTOCOL_ERROR;
1138         }
1139
1140         if ( ctrl->ldctl_value.bv_len == 0 ) {
1141                 rs->sr_text = "valuesReturnFilter control value is empty (or absent)";
1142                 return LDAP_PROTOCOL_ERROR;
1143         }
1144
1145         ber = ber_init( &(ctrl->ldctl_value) );
1146         if (ber == NULL) {
1147                 rs->sr_text = "internal error";
1148                 return LDAP_OTHER;
1149         }
1150
1151         rs->sr_err = get_vrFilter( op, ber, (ValuesReturnFilter **)&(op->o_vrFilter), &rs->sr_text);
1152
1153         if( rs->sr_err != LDAP_SUCCESS ) {
1154                 if( rs->sr_err == SLAPD_DISCONNECT ) {
1155                         rs->sr_err = LDAP_PROTOCOL_ERROR;
1156                         send_ldap_disconnect( op, rs );
1157                         rs->sr_err = SLAPD_DISCONNECT;
1158                 } else {
1159                         send_ldap_result( op, rs );
1160                 }
1161                 if( op->o_vrFilter != NULL) vrFilter_free( op, op->o_vrFilter );
1162         }
1163 #ifdef LDAP_DEBUG
1164         else {
1165                 vrFilter2bv( op, op->o_vrFilter, &fstr );
1166         }
1167
1168         Debug( LDAP_DEBUG_ARGS, "       vrFilter: %s\n",
1169                 fstr.bv_len ? fstr.bv_val : "empty", 0, 0 );
1170         op->o_tmpfree( fstr.bv_val, op->o_tmpmemctx );
1171 #endif
1172
1173         op->o_valuesreturnfilter = ctrl->ldctl_iscritical
1174                 ? SLAP_CONTROL_CRITICAL
1175                 : SLAP_CONTROL_NONCRITICAL;
1176
1177         rs->sr_err = LDAP_SUCCESS;
1178         return LDAP_SUCCESS;
1179 }
1180
1181 #ifdef LDAP_CONTROL_SUBENTRIES
1182 static int parseSubentries (
1183         Operation *op,
1184         SlapReply *rs,
1185         LDAPControl *ctrl )
1186 {
1187         if ( op->o_subentries != SLAP_CONTROL_NONE ) {
1188                 rs->sr_text = "subentries control specified multiple times";
1189                 return LDAP_PROTOCOL_ERROR;
1190         }
1191
1192         /* FIXME: should use BER library */
1193         if( ( ctrl->ldctl_value.bv_len != 3 )
1194                 || ( ctrl->ldctl_value.bv_val[0] != 0x01 )
1195                 || ( ctrl->ldctl_value.bv_val[1] != 0x01 ))
1196         {
1197                 rs->sr_text = "subentries control value encoding is bogus";
1198                 return LDAP_PROTOCOL_ERROR;
1199         }
1200
1201         op->o_subentries = ctrl->ldctl_iscritical
1202                 ? SLAP_CONTROL_CRITICAL
1203                 : SLAP_CONTROL_NONCRITICAL;
1204
1205         if ( (void *)(ctrl->ldctl_value.bv_val[2] != 0x00)) {
1206                 set_subentries_visibility( op );
1207         }
1208
1209         return LDAP_SUCCESS;
1210 }
1211 #endif
1212
1213 #ifdef LDAP_CONTROL_X_PERMISSIVE_MODIFY
1214 static int parsePermissiveModify (
1215         Operation *op,
1216         SlapReply *rs,
1217         LDAPControl *ctrl )
1218 {
1219         if ( op->o_permissive_modify != SLAP_CONTROL_NONE ) {
1220                 rs->sr_text = "permissiveModify control specified multiple times";
1221                 return LDAP_PROTOCOL_ERROR;
1222         }
1223
1224         if ( ctrl->ldctl_value.bv_len ) {
1225                 rs->sr_text = "permissiveModify control value not empty";
1226                 return LDAP_PROTOCOL_ERROR;
1227         }
1228
1229         op->o_permissive_modify = ctrl->ldctl_iscritical
1230                 ? SLAP_CONTROL_CRITICAL
1231                 : SLAP_CONTROL_NONCRITICAL;
1232
1233         return LDAP_SUCCESS;
1234 }
1235 #endif
1236
1237 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
1238 static int parseDomainScope (
1239         Operation *op,
1240         SlapReply *rs,
1241         LDAPControl *ctrl )
1242 {
1243         if ( op->o_domain_scope != SLAP_CONTROL_NONE ) {
1244                 rs->sr_text = "domainScope control specified multiple times";
1245                 return LDAP_PROTOCOL_ERROR;
1246         }
1247
1248         if ( ctrl->ldctl_value.bv_len ) {
1249                 rs->sr_text = "domainScope control value not empty";
1250                 return LDAP_PROTOCOL_ERROR;
1251         }
1252
1253         op->o_domain_scope = ctrl->ldctl_iscritical
1254                 ? SLAP_CONTROL_CRITICAL
1255                 : SLAP_CONTROL_NONCRITICAL;
1256
1257         return LDAP_SUCCESS;
1258 }
1259 #endif
1260
1261 #ifdef LDAP_CONTROL_X_TREE_DELETE
1262 static int parseTreeDelete (
1263         Operation *op,
1264         SlapReply *rs,
1265         LDAPControl *ctrl )
1266 {
1267         if ( op->o_tree_delete != SLAP_CONTROL_NONE ) {
1268                 rs->sr_text = "treeDelete control specified multiple times";
1269                 return LDAP_PROTOCOL_ERROR;
1270         }
1271
1272         if ( ctrl->ldctl_value.bv_len ) {
1273                 rs->sr_text = "treeDelete control value not empty";
1274                 return LDAP_PROTOCOL_ERROR;
1275         }
1276
1277         op->o_tree_delete = ctrl->ldctl_iscritical
1278                 ? SLAP_CONTROL_CRITICAL
1279                 : SLAP_CONTROL_NONCRITICAL;
1280
1281         return LDAP_SUCCESS;
1282 }
1283 #endif
1284
1285 #ifdef LDAP_CONTORL_X_SEARCH_OPTIONS
1286 static int parseSearchOptions (
1287         Operation *op,
1288         SlapReply *rs,
1289         LDAPControl *ctrl )
1290 {
1291         BerElement *ber;
1292         ber_int_t search_flags;
1293
1294         if ( ctrl->ldctl_value.bv_len == 0 ) {
1295                 rs->sr_text = "searchOptions control value not empty";
1296                 return LDAP_PROTOCOL_ERROR;
1297         }
1298
1299         ber = ber_init( &ctrl->ldctl_value );
1300         if( ber == NULL ) {
1301                 rs->sr_text = "internal error";
1302                 return LDAP_OTHER;
1303         }
1304
1305         if ( (tag = ber_scanf( ber, "{i}", &search_flags )) == LBER_ERROR ) {
1306                 rs->sr_text = "searchOptions control decoding error";
1307                 return LDAP_PROTOCOL_ERROR;
1308         }
1309
1310         (void) ber_free( ber, 1 );
1311
1312         if ( search_flags & LDAP_SEARCH_FLAG_DOMAIN_SCOPE ) {
1313                 if ( op->o_domain_scope != SLAP_CONTROL_NONE ) {
1314                         rs->sr_text = "searchOptions control specified multiple times "
1315                                 "or with domainScope control";
1316                         return LDAP_PROTOCOL_ERROR;
1317                 }
1318
1319                 op->o_domain_scope = ctrl->ldctl_iscritical
1320                         ? SLAP_CONTROL_CRITICAL
1321                         : SLAP_CONTROL_NONCRITICAL;
1322         }
1323
1324         if ( search_flags & ~(LDAP_SEARCH_FLAG_DOMAIN_SCOPE) ) {
1325                 /* Other search flags not recognised so far,
1326                  * including:
1327                  *              LDAP_SEARCH_FLAG_PHANTOM_ROOM
1328                  */
1329                 rs->sr_text = "searchOptions contained unrecongized flag";
1330                 return LDAP_UNWILLING_TO_PERFORM;
1331         }
1332
1333         return LDAP_SUCCESS;
1334 }
1335 #endif
1336