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

   1 /* filter.c - routines for parsing and dealing with filters */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2004 The OpenLDAP Foundation.
   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 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/socket.h>
  32 #include <ac/string.h>
  33
  34 #include "slap.h"
  35
  36 static int      get_filter_list(
  37         Operation *op,
  38         BerElement *ber,
  39         Filter **f,
  40         const char **text );
  41
  42 static int      get_ssa(
  43         Operation *op,
  44         BerElement *ber,
  45         SubstringsAssertion **s,
  46         const char **text );
  47
  48 static int filter_escape_value_x(
  49         struct berval *in,
  50         struct berval *out,
  51         void *ctx );
  52
  53 static void simple_vrFilter2bv(
  54         Operation *op,
  55         ValuesReturnFilter *f,
  56         struct berval *fstr );
  57
  58 static int      get_simple_vrFilter(
  59         Operation *op,
  60         BerElement *ber,
  61         ValuesReturnFilter **f,
  62         const char **text );
  63
  64 int
  65 get_filter(
  66         Operation *op,
  67         BerElement *ber,
  68         Filter **filt,
  69         const char **text )
  70 {
  71         ber_tag_t       tag;
  72         ber_len_t       len;
  73         int             err;
  74         Filter          f;
  75
  76 #ifdef NEW_LOGGING
  77         LDAP_LOG( FILTER, ENTRY, "get_filter: conn %d\n", op->o_connid, 0, 0 );
  78 #else
  79         Debug( LDAP_DEBUG_FILTER, "begin get_filter\n", 0, 0, 0 );
  80 #endif
  81         /*
  82          * A filter looks like this coming in:
  83          *      Filter ::= CHOICE {
  84          *              and             [0]     SET OF Filter,
  85          *              or              [1]     SET OF Filter,
  86          *              not             [2]     Filter,
  87          *              equalityMatch   [3]     AttributeValueAssertion,
  88          *              substrings      [4]     SubstringFilter,
  89          *              greaterOrEqual  [5]     AttributeValueAssertion,
  90          *              lessOrEqual     [6]     AttributeValueAssertion,
  91          *              present         [7]     AttributeType,,
  92          *              approxMatch     [8]     AttributeValueAssertion
  93          *              extensibleMatch [9]     MatchingRuleAssertion
  94          *      }
  95          *
  96          *      SubstringFilter ::= SEQUENCE {
  97          *              type               AttributeType,
  98          *              SEQUENCE OF CHOICE {
  99          *                      initial          [0] IA5String,
 100          *                      any              [1] IA5String,
 101          *                      final            [2] IA5String
 102          *              }
 103          *      }
 104          *
 105          *      MatchingRuleAssertion ::= SEQUENCE {
 106          *              matchingRule    [1] MatchingRuleId OPTIONAL,
 107          *              type            [2] AttributeDescription OPTIONAL,
 108          *              matchValue      [3] AssertionValue,
 109          *              dnAttributes    [4] BOOLEAN DEFAULT FALSE
 110          *      }
 111          *
 112          */
 113
 114         tag = ber_peek_tag( ber, &len );
 115
 116         if( tag == LBER_ERROR ) {
 117                 *text = "error decoding filter";
 118                 return SLAPD_DISCONNECT;
 119         }
 120
 121         err = LDAP_SUCCESS;
 122
 123         f.f_next = NULL;
 124         f.f_choice = tag;
 125
 126         switch ( f.f_choice ) {
 127         case LDAP_FILTER_EQUALITY:
 128 #ifdef NEW_LOGGING
 129                 LDAP_LOG( FILTER, DETAIL2,
 130                         "get_filter: conn %d  EQUALITY\n", op->o_connid, 0, 0 );
 131 #else
 132                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 133 #endif
 134                 err = get_ava( op, ber, &f.f_ava, SLAP_MR_EQUALITY, text );
 135                 if ( err != LDAP_SUCCESS ) {
 136                         break;
 137                 }
 138
 139                 assert( f.f_ava != NULL );
 140                 break;
 141
 142         case LDAP_FILTER_SUBSTRINGS:
 143 #ifdef NEW_LOGGING
 144                 LDAP_LOG( FILTER, DETAIL1,
 145                         "get_filter: conn %d  SUBSTRINGS\n", op->o_connid, 0, 0 );
 146 #else
 147                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 148 #endif
 149                 err = get_ssa( op, ber, &f.f_sub, text );
 150                 if( err != LDAP_SUCCESS ) {
 151                         break;
 152                 }
 153                 assert( f.f_sub != NULL );
 154                 break;
 155
 156         case LDAP_FILTER_GE:
 157 #ifdef NEW_LOGGING
 158                 LDAP_LOG( FILTER, DETAIL1,
 159                         "get_filter: conn %d  GE\n", op->o_connid, 0, 0 );
 160 #else
 161                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 162 #endif
 163                 err = get_ava( op, ber, &f.f_ava, SLAP_MR_ORDERING, text );
 164                 if ( err != LDAP_SUCCESS ) {
 165                         break;
 166                 }
 167                 assert( f.f_ava != NULL );
 168                 break;
 169
 170         case LDAP_FILTER_LE:
 171 #ifdef NEW_LOGGING
 172                 LDAP_LOG( FILTER, DETAIL1,
 173                         "get_filter: conn %d  LE\n", op->o_connid, 0, 0 );
 174 #else
 175                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 176 #endif
 177                 err = get_ava( op, ber, &f.f_ava, SLAP_MR_ORDERING, text );
 178                 if ( err != LDAP_SUCCESS ) {
 179                         break;
 180                 }
 181                 assert( f.f_ava != NULL );
 182                 break;
 183
 184         case LDAP_FILTER_PRESENT: {
 185                 struct berval type;
 186
 187 #ifdef NEW_LOGGING
 188                 LDAP_LOG( FILTER, DETAIL1,
 189                         "get_filter: conn %d PRESENT\n", op->o_connid, 0, 0 );
 190 #else
 191                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 192 #endif
 193                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
 194                         err = SLAPD_DISCONNECT;
 195                         *text = "error decoding filter";
 196                         break;
 197                 }
 198
 199                 f.f_desc = NULL;
 200                 err = slap_bv2ad( &type, &f.f_desc, text );
 201
 202                 if( err != LDAP_SUCCESS ) {
 203                         /* unrecognized attribute description or other error */
 204 #ifdef NEW_LOGGING
 205                         LDAP_LOG( FILTER, ERR,
 206                                 "get_filter: conn %d unknown attribute "
 207                                 "type=%s (%d)\n",
 208                                 op->o_connid, type.bv_val, err );
 209 #else
 210                         Debug( LDAP_DEBUG_ANY,
 211                                 "get_filter: conn %d unknown attribute "
 212                                 "type=%s (%d)\n",
 213                                 op->o_connid, type.bv_val, err );
 214 #endif
 215
 216                         f.f_choice = SLAPD_FILTER_COMPUTED;
 217                         f.f_result = LDAP_COMPARE_FALSE;
 218                         err = LDAP_SUCCESS;
 219                         *text = NULL;
 220                         break;
 221                 }
 222
 223                 assert( f.f_desc != NULL );
 224                 } break;
 225
 226         case LDAP_FILTER_APPROX:
 227 #ifdef NEW_LOGGING
 228                 LDAP_LOG( FILTER, DETAIL1,
 229                         "get_filter: conn %d  APPROX\n", op->o_connid, 0, 0 );
 230 #else
 231                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
 232 #endif
 233                 err = get_ava( op, ber, &f.f_ava, SLAP_MR_EQUALITY_APPROX, text );
 234                 if ( err != LDAP_SUCCESS ) {
 235                         break;
 236                 }
 237                 assert( f.f_ava != NULL );
 238                 break;
 239
 240         case LDAP_FILTER_AND:
 241 #ifdef NEW_LOGGING
 242                 LDAP_LOG( FILTER, DETAIL1,
 243                         "get_filter: conn %d  AND\n", op->o_connid, 0, 0 );
 244 #else
 245                 Debug( LDAP_DEBUG_FILTER, "AND\n", 0, 0, 0 );
 246 #endif
 247                 err = get_filter_list( op, ber, &f.f_and, text );
 248                 if ( err != LDAP_SUCCESS ) {
 249                         break;
 250                 }
 251                 if ( f.f_and == NULL ) {
 252                         f.f_choice = SLAPD_FILTER_COMPUTED;
 253                         f.f_result = LDAP_COMPARE_TRUE;
 254                 }
 255                 /* no assert - list could be empty */
 256                 break;
 257
 258         case LDAP_FILTER_OR:
 259 #ifdef NEW_LOGGING
 260                 LDAP_LOG( FILTER, DETAIL1,
 261                         "get_filter: conn %d  OR\n", op->o_connid, 0, 0  );
 262 #else
 263                 Debug( LDAP_DEBUG_FILTER, "OR\n", 0, 0, 0 );
 264 #endif
 265                 err = get_filter_list( op, ber, &f.f_or, text );
 266                 if ( err != LDAP_SUCCESS ) {
 267                         break;
 268                 }
 269                 if ( f.f_or == NULL ) {
 270                         f.f_choice = SLAPD_FILTER_COMPUTED;
 271                         f.f_result = LDAP_COMPARE_FALSE;
 272                 }
 273                 /* no assert - list could be empty */
 274                 break;
 275
 276         case LDAP_FILTER_NOT:
 277 #ifdef NEW_LOGGING
 278                 LDAP_LOG( FILTER, DETAIL1,
 279                         "get_filter: conn %d  NOT\n", op->o_connid, 0, 0 );
 280 #else
 281                 Debug( LDAP_DEBUG_FILTER, "NOT\n", 0, 0, 0 );
 282 #endif
 283                 (void) ber_skip_tag( ber, &len );
 284                 err = get_filter( op, ber, &f.f_not, text );
 285                 if ( err != LDAP_SUCCESS ) {
 286                         break;
 287                 }
 288
 289                 assert( f.f_not != NULL );
 290                 if ( f.f_not->f_choice == SLAPD_FILTER_COMPUTED ) {
 291                         int fresult = f.f_not->f_result;
 292                         f.f_choice = SLAPD_FILTER_COMPUTED;
 293                         op->o_tmpfree( f.f_not, op->o_tmpmemctx );
 294                         f.f_not = NULL;
 295
 296                         switch( fresult ) {
 297                         case LDAP_COMPARE_TRUE:
 298                                 f.f_result = LDAP_COMPARE_FALSE;
 299                                 break;
 300                         case LDAP_COMPARE_FALSE:
 301                                 f.f_result = LDAP_COMPARE_TRUE;
 302                                 break;
 303                         default: ;
 304                                 /* (!Undefined) is Undefined */
 305                         }
 306                 }
 307                 break;
 308
 309         case LDAP_FILTER_EXT:
 310 #ifdef NEW_LOGGING
 311                 LDAP_LOG( FILTER, DETAIL1,
 312                         "get_filter: conn %d  EXTENSIBLE\n", op->o_connid, 0, 0 );
 313 #else
 314                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
 315 #endif
 316
 317                 err = get_mra( op, ber, &f.f_mra, text );
 318                 if ( err != LDAP_SUCCESS ) {
 319                         break;
 320                 }
 321
 322                 assert( f.f_mra != NULL );
 323                 break;
 324
 325         default:
 326                 (void) ber_scanf( ber, "x" ); /* skip the element */
 327 #ifdef NEW_LOGGING
 328                 LDAP_LOG( FILTER, ERR,
 329                         "get_filter: conn %d unknown filter type=%lu\n",
 330                         op->o_connid, f.f_choice, 0 );
 331 #else
 332                 Debug( LDAP_DEBUG_ANY, "get_filter: unknown filter type=%lu\n",
 333                         f.f_choice, 0, 0 );
 334 #endif
 335                 f.f_choice = SLAPD_FILTER_COMPUTED;
 336                 f.f_result = SLAPD_COMPARE_UNDEFINED;
 337                 break;
 338         }
 339
 340         if( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
 341                 /* ignore error */
 342                 *text = NULL;
 343                 f.f_choice = SLAPD_FILTER_COMPUTED;
 344                 f.f_result = SLAPD_COMPARE_UNDEFINED;
 345                 err = LDAP_SUCCESS;
 346         }
 347
 348         if ( err == LDAP_SUCCESS ) {
 349                 *filt = op->o_tmpalloc( sizeof(f), op->o_tmpmemctx );
 350                 **filt = f;
 351         }
 352
 353 #ifdef NEW_LOGGING
 354         LDAP_LOG( FILTER, DETAIL2,
 355                 "get_filter: conn %d exit\n", op->o_connid, 0, 0 );
 356 #else
 357         Debug( LDAP_DEBUG_FILTER, "end get_filter %d\n", err, 0, 0 );
 358 #endif
 359
 360         return( err );
 361 }
 362
 363 static int
 364 get_filter_list( Operation *op, BerElement *ber,
 365         Filter **f,
 366         const char **text )
 367 {
 368         Filter          **new;
 369         int             err;
 370         ber_tag_t       tag;
 371         ber_len_t       len;
 372         char            *last;
 373
 374 #ifdef NEW_LOGGING
 375         LDAP_LOG( FILTER, ENTRY,
 376                 "get_filter_list: conn %d start\n", op->o_connid, 0, 0 );
 377 #else
 378         Debug( LDAP_DEBUG_FILTER, "begin get_filter_list\n", 0, 0, 0 );
 379 #endif
 380         new = f;
 381         for ( tag = ber_first_element( ber, &len, &last );
 382                 tag != LBER_DEFAULT;
 383                 tag = ber_next_element( ber, &len, last ) )
 384         {
 385                 err = get_filter( op, ber, new, text );
 386                 if ( err != LDAP_SUCCESS )
 387                         return( err );
 388                 new = &(*new)->f_next;
 389         }
 390         *new = NULL;
 391
 392 #ifdef NEW_LOGGING
 393         LDAP_LOG( FILTER, ENTRY,
 394                 "get_filter_list: conn %d exit\n", op->o_connid, 0, 0 );
 395 #else
 396         Debug( LDAP_DEBUG_FILTER, "end get_filter_list\n", 0, 0, 0 );
 397 #endif
 398         return( LDAP_SUCCESS );
 399 }
 400
 401 static int
 402 get_ssa(
 403         Operation *op,
 404         BerElement      *ber,
 405         SubstringsAssertion     **out,
 406         const char      **text )
 407 {
 408         ber_tag_t       tag;
 409         ber_len_t       len;
 410         ber_tag_t       rc;
 411         struct berval desc, value, nvalue;
 412         char            *last;
 413         SubstringsAssertion ssa;
 414
 415         *text = "error decoding filter";
 416         *out = NULL;
 417
 418 #ifdef NEW_LOGGING
 419         LDAP_LOG( FILTER, ENTRY,
 420                 "get_ssa: conn %d  begin\n", op->o_connid, 0, 0 );
 421 #else
 422         Debug( LDAP_DEBUG_FILTER, "begin get_ssa\n", 0, 0, 0 );
 423 #endif
 424         if ( ber_scanf( ber, "{m" /*}*/, &desc ) == LBER_ERROR ) {
 425                 return SLAPD_DISCONNECT;
 426         }
 427
 428         *text = NULL;
 429
 430         ssa.sa_desc = NULL;
 431         ssa.sa_initial.bv_val = NULL;
 432         ssa.sa_any = NULL;
 433         ssa.sa_final.bv_val = NULL;
 434
 435         rc = slap_bv2ad( &desc, &ssa.sa_desc, text );
 436
 437         if( rc != LDAP_SUCCESS ) {
 438 #ifdef NEW_LOGGING
 439                 LDAP_LOG( FILTER, ERR,
 440                         "get_ssa: conn %d d unknown attribute type=%s (%d)\n",
 441                         op->o_connid, desc.bv_val, rc );
 442 #else
 443                 Debug( LDAP_DEBUG_ANY,
 444                         "get_ssa: conn %d unknown attribute type=%s (%d)\n",
 445                         op->o_connid, desc.bv_val, rc );
 446 #endif
 447
 448                 /* skip over the rest of this filter */
 449                 for ( tag = ber_first_element( ber, &len, &last );
 450                         tag != LBER_DEFAULT;
 451                         tag = ber_next_element( ber, &len, last ) ) {
 452                         ber_scanf( ber, "x" );
 453                 }
 454                 return rc;
 455         }
 456
 457         rc = LDAP_PROTOCOL_ERROR;
 458
 459         for ( tag = ber_first_element( ber, &len, &last );
 460                 tag != LBER_DEFAULT;
 461                 tag = ber_next_element( ber, &len, last ) )
 462         {
 463                 unsigned usage;
 464
 465                 rc = ber_scanf( ber, "m", &value );
 466                 if ( rc == LBER_ERROR ) {
 467                         rc = SLAPD_DISCONNECT;
 468                         goto return_error;
 469                 }
 470
 471                 if ( value.bv_val == NULL || value.bv_len == 0 ) {
 472                         rc = LDAP_INVALID_SYNTAX;
 473                         goto return_error;
 474                 }
 475
 476                 switch ( tag ) {
 477                 case LDAP_SUBSTRING_INITIAL:
 478                         usage = SLAP_MR_SUBSTR_INITIAL;
 479                         break;
 480
 481                 case LDAP_SUBSTRING_ANY:
 482                         usage = SLAP_MR_SUBSTR_ANY;
 483                         break;
 484
 485                 case LDAP_SUBSTRING_FINAL:
 486                         usage = SLAP_MR_SUBSTR_FINAL;
 487                         break;
 488
 489                 default:
 490                         rc = LDAP_PROTOCOL_ERROR;
 491
 492 #ifdef NEW_LOGGING
 493                         LDAP_LOG( FILTER, ERR,
 494                                 "get_filter_substring: conn %d  unknown substring choice=%ld\n",
 495                                 op->o_connid, (long)tag, 0 );
 496 #else
 497                         Debug( LDAP_DEBUG_FILTER,
 498                                 "  unknown substring choice=%ld\n",
 499                                 (long) tag, 0, 0 );
 500 #endif
 501
 502                         goto return_error;
 503                 }
 504
 505                 /* validate/normalize using equality matching rule validator! */
 506                 rc = asserted_value_validate_normalize(
 507                         ssa.sa_desc, ssa.sa_desc->ad_type->sat_equality,
 508                         usage, &value, &nvalue, text, op->o_tmpmemctx );
 509
 510                 if( rc != LDAP_SUCCESS ) {
 511                         goto return_error;
 512                 }
 513
 514                 rc = LDAP_PROTOCOL_ERROR;
 515
 516                 switch ( tag ) {
 517                 case LDAP_SUBSTRING_INITIAL:
 518 #ifdef NEW_LOGGING
 519                         LDAP_LOG( FILTER, DETAIL1,
 520                                 "get_ssa: conn %d  INITIAL\n",
 521                                 op->o_connid, 0, 0 );
 522 #else
 523                         Debug( LDAP_DEBUG_FILTER, "  INITIAL\n", 0, 0, 0 );
 524 #endif
 525
 526                         if ( ssa.sa_initial.bv_val != NULL
 527                                 || ssa.sa_any != NULL
 528                                 || ssa.sa_final.bv_val != NULL )
 529                         {
 530                                 sl_free( nvalue.bv_val, op->o_tmpmemctx );
 531                                 goto return_error;
 532                         }
 533
 534                         ssa.sa_initial = nvalue;
 535                         break;
 536
 537                 case LDAP_SUBSTRING_ANY:
 538 #ifdef NEW_LOGGING
 539                         LDAP_LOG( FILTER, DETAIL1,
 540                                 "get_ssa: conn %d  ANY\n",
 541                                 op->o_connid, 0, 0 );
 542 #else
 543                         Debug( LDAP_DEBUG_FILTER, "  ANY\n", 0, 0, 0 );
 544 #endif
 545
 546                         if ( ssa.sa_final.bv_val != NULL ) {
 547                                 sl_free( nvalue.bv_val, op->o_tmpmemctx );
 548                                 goto return_error;
 549                         }
 550
 551                         ber_bvarray_add_x( &ssa.sa_any, &nvalue, op->o_tmpmemctx );
 552                         break;
 553
 554                 case LDAP_SUBSTRING_FINAL:
 555 #ifdef NEW_LOGGING
 556                         LDAP_LOG( FILTER, DETAIL1,
 557                                 "get_ssa: conn %d  FINAL\n",
 558                                 op->o_connid, 0, 0 );
 559 #else
 560                         Debug( LDAP_DEBUG_FILTER, "  FINAL\n", 0, 0, 0 );
 561 #endif
 562
 563                         if ( ssa.sa_final.bv_val != NULL ) {
 564                                 sl_free( nvalue.bv_val, op->o_tmpmemctx );
 565                                 goto return_error;
 566                         }
 567
 568                         ssa.sa_final = nvalue;
 569                         break;
 570
 571                 default:
 572 #ifdef NEW_LOGGING
 573                         LDAP_LOG( FILTER, INFO,
 574                                 "get_ssa: conn %d  unknown substring type %ld\n",
 575                                 op->o_connid, (long)tag, 0 );
 576 #else
 577                         Debug( LDAP_DEBUG_FILTER,
 578                                 "  unknown substring type=%ld\n",
 579                                 (long) tag, 0, 0 );
 580 #endif
 581
 582                         assert( 0 );
 583                         sl_free( nvalue.bv_val, op->o_tmpmemctx );
 584
 585 return_error:
 586 #ifdef NEW_LOGGING
 587                         LDAP_LOG( FILTER, INFO,
 588                                 "get_ssa: conn %d  error %ld\n",
 589                                 op->o_connid, (long)rc, 0 );
 590 #else
 591                         Debug( LDAP_DEBUG_FILTER, "  error=%ld\n",
 592                                 (long) rc, 0, 0 );
 593 #endif
 594                         sl_free( ssa.sa_initial.bv_val, op->o_tmpmemctx );
 595                         ber_bvarray_free_x( ssa.sa_any, op->o_tmpmemctx );
 596                         sl_free( ssa.sa_final.bv_val, op->o_tmpmemctx );
 597                         return rc;
 598                 }
 599
 600                 rc = LDAP_SUCCESS;
 601         }
 602
 603         if( rc == LDAP_SUCCESS ) {
 604                 *out = op->o_tmpalloc( sizeof( ssa ), op->o_tmpmemctx );
 605                 **out = ssa;
 606         }
 607
 608 #ifdef NEW_LOGGING
 609         LDAP_LOG( FILTER, ENTRY,
 610                 "get_ssa: conn %d exit\n", op->o_connid, 0, 0 );
 611 #else
 612         Debug( LDAP_DEBUG_FILTER, "end get_ssa\n", 0, 0, 0 );
 613 #endif
 614
 615         return rc /* LDAP_SUCCESS */ ;
 616 }
 617
 618 void
 619 filter_free_x( Operation *op, Filter *f )
 620 {
 621         Filter  *p, *next;
 622
 623         if ( f == NULL ) {
 624                 return;
 625         }
 626
 627         switch ( f->f_choice ) {
 628         case LDAP_FILTER_PRESENT:
 629                 break;
 630
 631         case LDAP_FILTER_EQUALITY:
 632         case LDAP_FILTER_GE:
 633         case LDAP_FILTER_LE:
 634         case LDAP_FILTER_APPROX:
 635                 ava_free( op, f->f_ava, 1 );
 636                 break;
 637
 638         case LDAP_FILTER_SUBSTRINGS:
 639                 if ( f->f_sub_initial.bv_val != NULL ) {
 640                         op->o_tmpfree( f->f_sub_initial.bv_val, op->o_tmpmemctx );
 641                 }
 642                 ber_bvarray_free_x( f->f_sub_any, op->o_tmpmemctx );
 643                 if ( f->f_sub_final.bv_val != NULL ) {
 644                         op->o_tmpfree( f->f_sub_final.bv_val, op->o_tmpmemctx );
 645                 }
 646                 op->o_tmpfree( f->f_sub, op->o_tmpmemctx );
 647                 break;
 648
 649         case LDAP_FILTER_AND:
 650         case LDAP_FILTER_OR:
 651         case LDAP_FILTER_NOT:
 652                 for ( p = f->f_list; p != NULL; p = next ) {
 653                         next = p->f_next;
 654                         filter_free_x( op, p );
 655                 }
 656                 break;
 657
 658         case LDAP_FILTER_EXT:
 659                 mra_free( op, f->f_mra, 1 );
 660                 break;
 661
 662         case SLAPD_FILTER_COMPUTED:
 663                 break;
 664
 665         default:
 666 #ifdef NEW_LOGGING
 667                 LDAP_LOG( FILTER, ERR,
 668                         "filter_free: unknown filter type %lu\n", f->f_choice, 0, 0 );
 669 #else
 670                 Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
 671                         f->f_choice, 0, 0 );
 672 #endif
 673                 break;
 674         }
 675
 676         op->o_tmpfree( f, op->o_tmpmemctx );
 677 }
 678
 679 void
 680 filter_free( Filter *f )
 681 {
 682         Operation op;
 683
 684         op.o_tmpmemctx = sl_context( f );
 685         op.o_tmpmfuncs = &sl_mfuncs;
 686         filter_free_x( &op, f );
 687 }
 688
 689 void
 690 filter2bv_x( Operation *op, Filter *f, struct berval *fstr )
 691 {
 692         int             i;
 693         Filter          *p;
 694         struct berval   tmp,
 695                         ber_bvfalse = BER_BVC( "(?=false)" ),
 696                         ber_bvtrue = BER_BVC( "(?=true)" ),
 697                         ber_bvundefined = BER_BVC( "(?=undefined)" ),
 698                         ber_bverror = BER_BVC( "(?=error)" ),
 699                         ber_bvunknown = BER_BVC( "(?=unknown)" );
 700         ber_len_t       len;
 701
 702         if ( f == NULL ) {
 703                 ber_str2bv_x( "No filter!", sizeof("No filter!")-1, 1, fstr, op->o_tmpmemctx );
 704                 return;
 705         }
 706
 707         switch ( f->f_choice ) {
 708         case LDAP_FILTER_EQUALITY:
 709                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 710
 711                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 712                         tmp.bv_len + ( sizeof("(=)") - 1 );
 713                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 714
 715                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
 716                         f->f_av_desc->ad_cname.bv_val,
 717                         tmp.bv_val );
 718
 719                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 720                 break;
 721
 722         case LDAP_FILTER_GE:
 723                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 724
 725                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 726                         tmp.bv_len + ( sizeof("(>=)") - 1 );
 727                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 728
 729                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
 730                         f->f_av_desc->ad_cname.bv_val,
 731                         tmp.bv_val );
 732
 733                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 734                 break;
 735
 736         case LDAP_FILTER_LE:
 737                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 738
 739                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 740                         tmp.bv_len + ( sizeof("(<=)") - 1 );
 741                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 742
 743                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
 744                         f->f_av_desc->ad_cname.bv_val,
 745                         tmp.bv_val );
 746
 747                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 748                 break;
 749
 750         case LDAP_FILTER_APPROX:
 751                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 752
 753                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 754                         tmp.bv_len + ( sizeof("(~=)") - 1 );
 755                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 756
 757                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
 758                         f->f_av_desc->ad_cname.bv_val,
 759                         tmp.bv_val );
 760                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 761                 break;
 762
 763         case LDAP_FILTER_SUBSTRINGS:
 764                 fstr->bv_len = f->f_sub_desc->ad_cname.bv_len +
 765                         ( sizeof("(=*)") - 1 );
 766                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 767
 768                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 769                         f->f_sub_desc->ad_cname.bv_val );
 770
 771                 if ( f->f_sub_initial.bv_val != NULL ) {
 772                         len = fstr->bv_len;
 773
 774                         filter_escape_value_x( &f->f_sub_initial, &tmp, op->o_tmpmemctx );
 775
 776                         fstr->bv_len += tmp.bv_len;
 777                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1, op->o_tmpmemctx );
 778
 779                         snprintf( &fstr->bv_val[len-2], tmp.bv_len+3,
 780                                 /* "(attr=" */ "%s*)",
 781                                 tmp.bv_val );
 782
 783                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 784                 }
 785
 786                 if ( f->f_sub_any != NULL ) {
 787                         for ( i = 0; f->f_sub_any[i].bv_val != NULL; i++ ) {
 788                                 len = fstr->bv_len;
 789                                 filter_escape_value_x( &f->f_sub_any[i], &tmp, op->o_tmpmemctx );
 790
 791                                 fstr->bv_len += tmp.bv_len + 1;
 792                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1, op->o_tmpmemctx );
 793
 794                                 snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
 795                                         /* "(attr=[init]*[any*]" */ "%s*)",
 796                                         tmp.bv_val );
 797                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 798                         }
 799                 }
 800
 801                 if ( f->f_sub_final.bv_val != NULL ) {
 802                         len = fstr->bv_len;
 803
 804                         filter_escape_value_x( &f->f_sub_final, &tmp, op->o_tmpmemctx );
 805
 806                         fstr->bv_len += tmp.bv_len;
 807                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1, op->o_tmpmemctx );
 808
 809                         snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
 810                                 /* "(attr=[init*][any*]" */ "%s)",
 811                                 tmp.bv_val );
 812
 813                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 814                 }
 815
 816                 break;
 817
 818         case LDAP_FILTER_PRESENT:
 819                 fstr->bv_len = f->f_desc->ad_cname.bv_len +
 820                         ( sizeof("(=*)") - 1 );
 821                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 822
 823                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 824                         f->f_desc->ad_cname.bv_val );
 825                 break;
 826
 827         case LDAP_FILTER_AND:
 828         case LDAP_FILTER_OR:
 829         case LDAP_FILTER_NOT:
 830                 fstr->bv_len = sizeof("(%)") - 1;
 831                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 832
 833                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
 834                         f->f_choice == LDAP_FILTER_AND ? '&' :
 835                         f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 836
 837                 for ( p = f->f_list; p != NULL; p = p->f_next ) {
 838                         len = fstr->bv_len;
 839
 840                         filter2bv_x( op, p, &tmp );
 841
 842                         fstr->bv_len += tmp.bv_len;
 843                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1, op->o_tmpmemctx );
 844
 845                         snprintf( &fstr->bv_val[len-1], tmp.bv_len + 2,
 846                                 /*"("*/ "%s)", tmp.bv_val );
 847
 848                         op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
 849                 }
 850
 851                 break;
 852
 853         case LDAP_FILTER_EXT: {
 854                 struct berval ad;
 855                 filter_escape_value_x( &f->f_mr_value, &tmp, op->o_tmpmemctx );
 856
 857                 if ( f->f_mr_desc ) {
 858                         ad = f->f_mr_desc->ad_cname;
 859                 } else {
 860                         ad.bv_len = 0;
 861                         ad.bv_val = "";
 862                 }
 863
 864                 fstr->bv_len = ad.bv_len +
 865                         ( f->f_mr_dnattrs ? sizeof(":dn")-1 : 0 ) +
 866                         ( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len+1 : 0 ) +
 867                         tmp.bv_len + ( sizeof("(:=)") - 1 );
 868                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 869
 870                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
 871                         ad.bv_val,
 872                         f->f_mr_dnattrs ? ":dn" : "",
 873                         f->f_mr_rule_text.bv_len ? ":" : "",
 874                         f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_val : "",
 875                         tmp.bv_val );
 876                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 877                 } break;
 878
 879         case SLAPD_FILTER_COMPUTED:
 880                 switch ( f->f_result ) {
 881                 case LDAP_COMPARE_FALSE:
 882                         tmp = ber_bvfalse;
 883                         break;
 884
 885                 case LDAP_COMPARE_TRUE:
 886                         tmp = ber_bvtrue;
 887                         break;
 888
 889                 case SLAPD_COMPARE_UNDEFINED:
 890                         tmp = ber_bvundefined;
 891                         break;
 892
 893                 default:
 894                         tmp = ber_bverror;
 895                         break;
 896                 }
 897
 898                 ber_dupbv_x( fstr, &tmp, op->o_tmpmemctx );
 899                 break;
 900
 901         default:
 902                 ber_dupbv_x( fstr, &ber_bvunknown, op->o_tmpmemctx );
 903                 break;
 904         }
 905 }
 906
 907 void
 908 filter2bv( Filter *f, struct berval *fstr )
 909 {
 910         Operation op;
 911         op.o_tmpmemctx = NULL;
 912         op.o_tmpmfuncs = &ch_mfuncs;
 913
 914         filter2bv_x( &op, f, fstr );
 915 }
 916
 917 static int
 918 filter_escape_value_x(
 919         struct berval *in,
 920         struct berval *out,
 921         void *ctx )
 922 {
 923         ber_len_t i;
 924         assert( in );
 925         assert( out );
 926
 927         i = in->bv_len * 3 + 1;
 928         out->bv_val = ctx ? sl_malloc( i, ctx ) : ch_malloc( i );
 929         out->bv_len = 0;
 930
 931         for( i=0; i < in->bv_len ; i++ ) {
 932                 if( FILTER_ESCAPE(in->bv_val[i]) ) {
 933                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_CHAR;
 934                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_HI( in->bv_val[i] );
 935                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_LO( in->bv_val[i] );
 936                 } else {
 937                         out->bv_val[out->bv_len++] = in->bv_val[i];
 938                 }
 939         }
 940
 941         out->bv_val[out->bv_len] = '\0';
 942         return LDAP_SUCCESS;
 943 }
 944
 945 int
 946 filter_escape_value(
 947         struct berval *in,
 948         struct berval *out )
 949 {
 950         return filter_escape_value_x( in, out, NULL );
 951 }
 952
 953 static int
 954 get_simple_vrFilter(
 955         Operation *op,
 956         BerElement *ber,
 957         ValuesReturnFilter **filt,
 958         const char **text )
 959 {
 960         ber_tag_t       tag;
 961         ber_len_t       len;
 962         int             err;
 963         ValuesReturnFilter vrf;
 964
 965 #ifdef NEW_LOGGING
 966         LDAP_LOG( FILTER, ENTRY,
 967                 "get_simple_vrFilter: conn %d\n", op->o_connid, 0, 0 );
 968 #else
 969         Debug( LDAP_DEBUG_FILTER, "begin get_simple_vrFilter\n", 0, 0, 0 );
 970 #endif
 971
 972         tag = ber_peek_tag( ber, &len );
 973
 974         if( tag == LBER_ERROR ) {
 975                 *text = "error decoding filter";
 976                 return SLAPD_DISCONNECT;
 977         }
 978
 979         vrf.vrf_next = NULL;
 980
 981         err = LDAP_SUCCESS;
 982         vrf.vrf_choice = tag;
 983
 984         switch ( vrf.vrf_choice ) {
 985         case LDAP_FILTER_EQUALITY:
 986 #ifdef NEW_LOGGING
 987                 LDAP_LOG( FILTER, DETAIL2,
 988                         "get_simple_vrFilter: conn %d  EQUALITY\n", op->o_connid, 0, 0 );
 989 #else
 990                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 991 #endif
 992                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_EQUALITY, text );
 993                 if ( err != LDAP_SUCCESS ) {
 994                         break;
 995                 }
 996
 997                 assert( vrf.vrf_ava != NULL );
 998                 break;
 999
1000         case LDAP_FILTER_SUBSTRINGS:
1001 #ifdef NEW_LOGGING
1002                 LDAP_LOG( FILTER, DETAIL1,
1003                         "get_simple_vrFilter: conn %d  SUBSTRINGS\n", op->o_connid, 0, 0 );
1004 #else
1005                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
1006 #endif
1007                 err = get_ssa( op, ber, &vrf.vrf_sub, text );
1008                 break;
1009
1010         case LDAP_FILTER_GE:
1011 #ifdef NEW_LOGGING
1012                 LDAP_LOG( FILTER, DETAIL1,
1013                         "get_simple_vrFilter: conn %d  GE\n", op->o_connid, 0, 0 );
1014 #else
1015                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
1016 #endif
1017                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_ORDERING, text );
1018                 if ( err != LDAP_SUCCESS ) {
1019                         break;
1020                 }
1021                 break;
1022
1023         case LDAP_FILTER_LE:
1024 #ifdef NEW_LOGGING
1025                 LDAP_LOG( FILTER, DETAIL1,
1026                         "get_simple_vrFilter: conn %d  LE\n", op->o_connid, 0, 0 );
1027 #else
1028                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
1029 #endif
1030                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_ORDERING, text );
1031                 if ( err != LDAP_SUCCESS ) {
1032                         break;
1033                 }
1034                 break;
1035
1036         case LDAP_FILTER_PRESENT: {
1037                 struct berval type;
1038
1039 #ifdef NEW_LOGGING
1040                 LDAP_LOG( FILTER, DETAIL1,
1041                         "get_simple_vrFilter: conn %d PRESENT\n", op->o_connid, 0, 0 );
1042 #else
1043                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
1044 #endif
1045                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
1046                         err = SLAPD_DISCONNECT;
1047                         *text = "error decoding filter";
1048                         break;
1049                 }
1050
1051                 vrf.vrf_desc = NULL;
1052                 err = slap_bv2ad( &type, &vrf.vrf_desc, text );
1053
1054                 if( err != LDAP_SUCCESS ) {
1055                         /* unrecognized attribute description or other error */
1056 #ifdef NEW_LOGGING
1057                         LDAP_LOG( FILTER, ERR,
1058                                 "get_simple_vrFilter: conn %d unknown "
1059                                 "attribute type=%s (%d)\n",
1060                                 op->o_connid, type.bv_val, err );
1061 #else
1062                         Debug( LDAP_DEBUG_ANY,
1063                                 "get_simple_vrFilter: conn %d unknown "
1064                                 "attribute type=%s (%d)\n",
1065                                 op->o_connid, type.bv_val, err );
1066 #endif
1067
1068                         vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1069                         vrf.vrf_result = LDAP_COMPARE_FALSE;
1070                         err = LDAP_SUCCESS;
1071                         break;
1072                 }
1073                 } break;
1074
1075         case LDAP_FILTER_APPROX:
1076 #ifdef NEW_LOGGING
1077                 LDAP_LOG( FILTER, DETAIL1,
1078                         "get_simple_vrFilter: conn %d  APPROX\n", op->o_connid, 0, 0 );
1079 #else
1080                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
1081 #endif
1082                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_EQUALITY_APPROX, text );
1083                 if ( err != LDAP_SUCCESS ) {
1084                         break;
1085                 }
1086                 break;
1087
1088         case LDAP_FILTER_EXT:
1089 #ifdef NEW_LOGGING
1090                 LDAP_LOG( FILTER, DETAIL1,
1091                         "get_simple_vrFilter: conn %d  EXTENSIBLE\n", op->o_connid, 0, 0 );
1092 #else
1093                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
1094 #endif
1095
1096                 err = get_mra( op, ber, &vrf.vrf_mra, text );
1097                 if ( err != LDAP_SUCCESS ) {
1098                         break;
1099                 }
1100
1101                 assert( vrf.vrf_mra != NULL );
1102                 break;
1103
1104         default:
1105                 (void) ber_scanf( ber, "x" ); /* skip the element */
1106 #ifdef NEW_LOGGING
1107                 LDAP_LOG( FILTER, ERR,
1108                         "get_simple_vrFilter: conn %d unknown filter type=%lu\n",
1109                         op->o_connid, vrf.vrf_choice, 0 );
1110 #else
1111                 Debug( LDAP_DEBUG_ANY, "get_simple_vrFilter: unknown filter type=%lu\n",
1112                         vrf.vrf_choice, 0, 0 );
1113 #endif
1114                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1115                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
1116                 break;
1117         }
1118
1119         if ( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
1120                 /* ignore error */
1121                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1122                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
1123                 err = LDAP_SUCCESS;
1124         }
1125
1126         if ( err == LDAP_SUCCESS ) {
1127                 *filt = ch_malloc( sizeof vrf );
1128                 **filt = vrf;
1129         }
1130
1131 #ifdef NEW_LOGGING
1132         LDAP_LOG( FILTER, DETAIL2,
1133                 "get_simple_vrFilter: conn %d exit\n", op->o_connid, 0, 0 );
1134 #else
1135         Debug( LDAP_DEBUG_FILTER, "end get_simple_vrFilter %d\n", err, 0, 0 );
1136 #endif
1137
1138         return err;
1139 }
1140
1141 int
1142 get_vrFilter( Operation *op, BerElement *ber,
1143         ValuesReturnFilter **vrf,
1144         const char **text )
1145 {
1146         /*
1147          * A ValuesReturnFilter looks like this:
1148          *
1149          *      ValuesReturnFilter ::= SEQUENCE OF SimpleFilterItem
1150          *      SimpleFilterItem ::= CHOICE {
1151          *              equalityMatch   [3]     AttributeValueAssertion,
1152          *              substrings      [4]     SubstringFilter,
1153          *              greaterOrEqual  [5]     AttributeValueAssertion,
1154          *              lessOrEqual     [6]     AttributeValueAssertion,
1155          *              present         [7]     AttributeType,
1156          *              approxMatch     [8]     AttributeValueAssertion,
1157          *              extensibleMatch [9]     SimpleMatchingAssertion -- LDAPv3
1158          *      }
1159          *
1160          *      SubstringFilter ::= SEQUENCE {
1161          *              type               AttributeType,
1162          *              SEQUENCE OF CHOICE {
1163          *                      initial          [0] IA5String,
1164          *                      any              [1] IA5String,
1165          *                      final            [2] IA5String
1166          *              }
1167          *      }
1168          *
1169          *      SimpleMatchingAssertion ::= SEQUENCE {  -- LDAPv3
1170          *              matchingRule    [1] MatchingRuleId OPTIONAL,
1171          *              type            [2] AttributeDescription OPTIONAL,
1172          *              matchValue      [3] AssertionValue }
1173          */
1174
1175         ValuesReturnFilter **n;
1176         ber_tag_t       tag;
1177         ber_len_t       len;
1178         char            *last;
1179
1180 #ifdef NEW_LOGGING
1181         LDAP_LOG( FILTER, ENTRY,
1182                 "get_vrFilter: conn %d start\n", op->o_connid, 0, 0 );
1183 #else
1184         Debug( LDAP_DEBUG_FILTER, "begin get_vrFilter\n", 0, 0, 0 );
1185 #endif
1186
1187         tag = ber_peek_tag( ber, &len );
1188
1189         if( tag == LBER_ERROR ) {
1190                 *text = "error decoding vrFilter";
1191                 return SLAPD_DISCONNECT;
1192         }
1193
1194         if( tag != LBER_SEQUENCE ) {
1195                 *text = "error decoding vrFilter, expect SEQUENCE tag";
1196                 return SLAPD_DISCONNECT;
1197         }
1198
1199         n = vrf;
1200         for ( tag = ber_first_element( ber, &len, &last );
1201                 tag != LBER_DEFAULT;
1202                 tag = ber_next_element( ber, &len, last ) )
1203         {
1204                 int err = get_simple_vrFilter( op, ber, n, text );
1205
1206                 if ( err != LDAP_SUCCESS ) return( err );
1207
1208                 n = &(*n)->vrf_next;
1209         }
1210         *n = NULL;
1211
1212 #ifdef NEW_LOGGING
1213         LDAP_LOG( FILTER, ENTRY,
1214                 "get_vrFilter: conn %d exit\n", op->o_connid, 0, 0 );
1215 #else
1216         Debug( LDAP_DEBUG_FILTER, "end get_vrFilter\n", 0, 0, 0 );
1217 #endif
1218         return( LDAP_SUCCESS );
1219 }
1220
1221 void
1222 vrFilter_free( Operation *op, ValuesReturnFilter *vrf )
1223 {
1224         ValuesReturnFilter      *p, *next;
1225
1226         if ( vrf == NULL ) {
1227                 return;
1228         }
1229
1230         for ( p = vrf; p != NULL; p = next ) {
1231                 next = p->vrf_next;
1232
1233                 switch ( vrf->vrf_choice ) {
1234                 case LDAP_FILTER_PRESENT:
1235                         break;
1236
1237                 case LDAP_FILTER_EQUALITY:
1238                 case LDAP_FILTER_GE:
1239                 case LDAP_FILTER_LE:
1240                 case LDAP_FILTER_APPROX:
1241                         ava_free( op, vrf->vrf_ava, 1 );
1242                         break;
1243
1244                 case LDAP_FILTER_SUBSTRINGS:
1245                         if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1246                                 op->o_tmpfree( vrf->vrf_sub_initial.bv_val, op->o_tmpmemctx );
1247                         }
1248                         ber_bvarray_free_x( vrf->vrf_sub_any, op->o_tmpmemctx );
1249                         if ( vrf->vrf_sub_final.bv_val != NULL ) {
1250                                 op->o_tmpfree( vrf->vrf_sub_final.bv_val, op->o_tmpmemctx );
1251                         }
1252                         op->o_tmpfree( vrf->vrf_sub, op->o_tmpmemctx );
1253                         break;
1254
1255                 case LDAP_FILTER_EXT:
1256                         mra_free( op, vrf->vrf_mra, 1 );
1257                         break;
1258
1259                 case SLAPD_FILTER_COMPUTED:
1260                         break;
1261
1262                 default:
1263 #ifdef NEW_LOGGING
1264                         LDAP_LOG( FILTER, ERR,
1265                                 "filter_free: unknown filter type %lu\n", vrf->vrf_choice, 0, 0 );
1266 #else
1267                         Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
1268                                 vrf->vrf_choice, 0, 0 );
1269 #endif
1270                         break;
1271                 }
1272
1273                 op->o_tmpfree( vrf, op->o_tmpmemctx );
1274         }
1275 }
1276
1277 void
1278 vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1279 {
1280         ValuesReturnFilter      *p;
1281         struct berval tmp;
1282         ber_len_t len;
1283
1284         if ( vrf == NULL ) {
1285                 ber_str2bv_x( "No filter!", sizeof("No filter!")-1,
1286                         1, fstr, op->o_tmpmemctx );
1287                 return;
1288         }
1289
1290         fstr->bv_len = sizeof("()") - 1;
1291         fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1292
1293         snprintf( fstr->bv_val, fstr->bv_len + 1, "()");
1294
1295         for ( p = vrf; p != NULL; p = p->vrf_next ) {
1296                 len = fstr->bv_len;
1297
1298                 simple_vrFilter2bv( op, p, &tmp );
1299
1300                 fstr->bv_len += tmp.bv_len;
1301                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1, op->o_tmpmemctx );
1302
1303                 snprintf( &fstr->bv_val[len-1], tmp.bv_len + 2,
1304                         /*"("*/ "%s)", tmp.bv_val );
1305
1306                 op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
1307         }
1308 }
1309
1310 static void
1311 simple_vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1312 {
1313         struct berval tmp;
1314         ber_len_t len;
1315
1316         if ( vrf == NULL ) {
1317                 ber_str2bv_x( "No filter!", sizeof("No filter!")-1, 1, fstr, op->o_tmpmemctx );
1318                 return;
1319         }
1320
1321         switch ( vrf->vrf_choice ) {
1322         case LDAP_FILTER_EQUALITY:
1323                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1324
1325                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1326                         tmp.bv_len + ( sizeof("(=)") - 1 );
1327                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1328
1329                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
1330                         vrf->vrf_av_desc->ad_cname.bv_val,
1331                         tmp.bv_val );
1332
1333                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1334                 break;
1335
1336         case LDAP_FILTER_GE:
1337                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1338
1339                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1340                         tmp.bv_len + ( sizeof("(>=)") - 1 );
1341                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1342
1343                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
1344                         vrf->vrf_av_desc->ad_cname.bv_val,
1345                         tmp.bv_val );
1346
1347                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1348                 break;
1349
1350         case LDAP_FILTER_LE:
1351                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1352
1353                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1354                         tmp.bv_len + ( sizeof("(<=)") - 1 );
1355                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1356
1357                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
1358                         vrf->vrf_av_desc->ad_cname.bv_val,
1359                         tmp.bv_val );
1360
1361                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1362                 break;
1363
1364         case LDAP_FILTER_APPROX:
1365                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1366
1367                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1368                         tmp.bv_len + ( sizeof("(~=)") - 1 );
1369                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1370
1371                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
1372                         vrf->vrf_av_desc->ad_cname.bv_val,
1373                         tmp.bv_val );
1374                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1375                 break;
1376
1377         case LDAP_FILTER_SUBSTRINGS:
1378                 fstr->bv_len = vrf->vrf_sub_desc->ad_cname.bv_len +
1379                         ( sizeof("(=*)") - 1 );
1380                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1381
1382                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1383                         vrf->vrf_sub_desc->ad_cname.bv_val );
1384
1385                 if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1386                         len = fstr->bv_len;
1387
1388                         filter_escape_value_x( &vrf->vrf_sub_initial, &tmp, op->o_tmpmemctx );
1389
1390                         fstr->bv_len += tmp.bv_len;
1391                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1, op->o_tmpmemctx );
1392
1393                         snprintf( &fstr->bv_val[len-2], tmp.bv_len+3,
1394                                 /* "(attr=" */ "%s*)",
1395                                 tmp.bv_val );
1396
1397                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1398                 }
1399
1400                 if ( vrf->vrf_sub_any != NULL ) {
1401                         int i;
1402                         for ( i = 0; vrf->vrf_sub_any[i].bv_val != NULL; i++ ) {
1403                                 len = fstr->bv_len;
1404                                 filter_escape_value_x( &vrf->vrf_sub_any[i], &tmp, op->o_tmpmemctx );
1405
1406                                 fstr->bv_len += tmp.bv_len + 1;
1407                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1, op->o_tmpmemctx );
1408
1409                                 snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1410                                         /* "(attr=[init]*[any*]" */ "%s*)",
1411                                         tmp.bv_val );
1412                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1413                         }
1414                 }
1415
1416                 if ( vrf->vrf_sub_final.bv_val != NULL ) {
1417                         len = fstr->bv_len;
1418
1419                         filter_escape_value_x( &vrf->vrf_sub_final, &tmp, op->o_tmpmemctx );
1420
1421                         fstr->bv_len += tmp.bv_len;
1422                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1, op->o_tmpmemctx );
1423
1424                         snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1425                                 /* "(attr=[init*][any*]" */ "%s)",
1426                                 tmp.bv_val );
1427
1428                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1429                 }
1430
1431                 break;
1432
1433         case LDAP_FILTER_PRESENT:
1434                 fstr->bv_len = vrf->vrf_desc->ad_cname.bv_len +
1435                         ( sizeof("(=*)") - 1 );
1436                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1437
1438                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1439                         vrf->vrf_desc->ad_cname.bv_val );
1440                 break;
1441
1442         case LDAP_FILTER_EXT: {
1443                 struct berval ad;
1444                 filter_escape_value_x( &vrf->vrf_mr_value, &tmp, op->o_tmpmemctx );
1445
1446                 if ( vrf->vrf_mr_desc ) {
1447                         ad = vrf->vrf_mr_desc->ad_cname;
1448                 } else {
1449                         ad.bv_len = 0;
1450                         ad.bv_val = "";
1451                 }
1452
1453                 fstr->bv_len = ad.bv_len +
1454                         ( vrf->vrf_mr_dnattrs ? sizeof(":dn")-1 : 0 ) +
1455                         ( vrf->vrf_mr_rule_text.bv_len ? vrf->vrf_mr_rule_text.bv_len+1 : 0 ) +
1456                         tmp.bv_len + ( sizeof("(:=)") - 1 );
1457                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1458
1459                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
1460                         ad.bv_val,
1461                         vrf->vrf_mr_dnattrs ? ":dn" : "",
1462                         vrf->vrf_mr_rule_text.bv_len ? ":" : "",
1463                         vrf->vrf_mr_rule_text.bv_len ? vrf->vrf_mr_rule_text.bv_val : "",
1464                         tmp.bv_val );
1465
1466                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1467                 } break;
1468
1469         case SLAPD_FILTER_COMPUTED:
1470                 ber_str2bv_x(
1471                         vrf->vrf_result == LDAP_COMPARE_FALSE ? "(?=false)" :
1472                         vrf->vrf_result == LDAP_COMPARE_TRUE ? "(?=true)" :
1473                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED ? "(?=undefined)" :
1474                         "(?=error)",
1475                         vrf->vrf_result == LDAP_COMPARE_FALSE ? sizeof("(?=false)")-1 :
1476                         vrf->vrf_result == LDAP_COMPARE_TRUE ? sizeof("(?=true)")-1 :
1477                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED ? sizeof("(?=undefined)")-1 :
1478                         sizeof("(?=error)")-1,
1479                         1, fstr, op->o_tmpmemctx );
1480                 break;
1481
1482         default:
1483                 ber_str2bv_x( "(?=unknown)", sizeof("(?=unknown)")-1,
1484                         1, fstr, op->o_tmpmemctx );
1485                 break;
1486         }
1487 }