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 1998-2011 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 #include "lutil.h"
  36
  37 const Filter *slap_filter_objectClass_pres;
  38 const struct berval *slap_filterstr_objectClass_pres;
  39
  40 static int      get_filter_list(
  41         Operation *op,
  42         BerElement *ber,
  43         Filter **f,
  44         const char **text );
  45
  46 static int      get_ssa(
  47         Operation *op,
  48         BerElement *ber,
  49         Filter *f,
  50         const char **text );
  51
  52 static void simple_vrFilter2bv(
  53         Operation *op,
  54         ValuesReturnFilter *f,
  55         struct berval *fstr );
  56
  57 static int      get_simple_vrFilter(
  58         Operation *op,
  59         BerElement *ber,
  60         ValuesReturnFilter **f,
  61         const char **text );
  62
  63 int
  64 filter_init( void )
  65 {
  66         static Filter filter_objectClass_pres = { LDAP_FILTER_PRESENT };
  67         static struct berval filterstr_objectClass_pres = BER_BVC("(objectClass=*)");
  68
  69         filter_objectClass_pres.f_desc = slap_schema.si_ad_objectClass;
  70
  71         slap_filter_objectClass_pres = &filter_objectClass_pres;
  72         slap_filterstr_objectClass_pres = &filterstr_objectClass_pres;
  73
  74         return 0;
  75 }
  76
  77 void
  78 filter_destroy( void )
  79 {
  80         return;
  81 }
  82
  83 int
  84 get_filter(
  85         Operation *op,
  86         BerElement *ber,
  87         Filter **filt,
  88         const char **text )
  89 {
  90         ber_tag_t       tag;
  91         ber_len_t       len;
  92         int             err;
  93         Filter          f;
  94
  95         Debug( LDAP_DEBUG_FILTER, "begin get_filter\n", 0, 0, 0 );
  96         /*
  97          * A filter looks like this coming in:
  98          *      Filter ::= CHOICE {
  99          *              and             [0]     SET OF Filter,
 100          *              or              [1]     SET OF Filter,
 101          *              not             [2]     Filter,
 102          *              equalityMatch   [3]     AttributeValueAssertion,
 103          *              substrings      [4]     SubstringFilter,
 104          *              greaterOrEqual  [5]     AttributeValueAssertion,
 105          *              lessOrEqual     [6]     AttributeValueAssertion,
 106          *              present         [7]     AttributeType,
 107          *              approxMatch     [8]     AttributeValueAssertion,
 108          *              extensibleMatch [9]     MatchingRuleAssertion
 109          *      }
 110          *
 111          *      SubstringFilter ::= SEQUENCE {
 112          *              type               AttributeType,
 113          *              SEQUENCE OF CHOICE {
 114          *                      initial          [0] IA5String,
 115          *                      any              [1] IA5String,
 116          *                      final            [2] IA5String
 117          *              }
 118          *      }
 119          *
 120          *      MatchingRuleAssertion ::= SEQUENCE {
 121          *              matchingRule    [1] MatchingRuleId OPTIONAL,
 122          *              type            [2] AttributeDescription OPTIONAL,
 123          *              matchValue      [3] AssertionValue,
 124          *              dnAttributes    [4] BOOLEAN DEFAULT FALSE
 125          *      }
 126          *
 127          */
 128
 129         tag = ber_peek_tag( ber, &len );
 130
 131         if( tag == LBER_ERROR ) {
 132                 *text = "error decoding filter";
 133                 return SLAPD_DISCONNECT;
 134         }
 135
 136         err = LDAP_SUCCESS;
 137
 138         f.f_next = NULL;
 139         f.f_choice = tag;
 140
 141         switch ( f.f_choice ) {
 142         case LDAP_FILTER_EQUALITY:
 143                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 144                 err = get_ava( op, ber, &f, SLAP_MR_EQUALITY, text );
 145                 if ( err != LDAP_SUCCESS ) {
 146                         break;
 147                 }
 148
 149                 assert( f.f_ava != NULL );
 150                 break;
 151
 152         case LDAP_FILTER_SUBSTRINGS:
 153                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 154                 err = get_ssa( op, ber, &f, text );
 155                 if( err != LDAP_SUCCESS ) {
 156                         break;
 157                 }
 158                 assert( f.f_sub != NULL );
 159                 break;
 160
 161         case LDAP_FILTER_GE:
 162                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 163                 err = get_ava( op, ber, &f, 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                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 172                 err = get_ava( op, ber, &f, SLAP_MR_ORDERING, text );
 173                 if ( err != LDAP_SUCCESS ) {
 174                         break;
 175                 }
 176                 assert( f.f_ava != NULL );
 177                 break;
 178
 179         case LDAP_FILTER_PRESENT: {
 180                 struct berval type;
 181
 182                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 183                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
 184                         err = SLAPD_DISCONNECT;
 185                         *text = "error decoding filter";
 186                         break;
 187                 }
 188
 189                 f.f_desc = NULL;
 190                 err = slap_bv2ad( &type, &f.f_desc, text );
 191
 192                 if( err != LDAP_SUCCESS ) {
 193                         f.f_choice |= SLAPD_FILTER_UNDEFINED;
 194                         err = slap_bv2undef_ad( &type, &f.f_desc, text,
 195                                 SLAP_AD_PROXIED|SLAP_AD_NOINSERT );
 196
 197                         if ( err != LDAP_SUCCESS ) {
 198                                 /* unrecognized attribute description or other error */
 199                                 Debug( LDAP_DEBUG_ANY,
 200                                         "get_filter: conn %lu unknown attribute "
 201                                         "type=%s (%d)\n",
 202                                         op->o_connid, type.bv_val, err );
 203
 204                                 err = LDAP_SUCCESS;
 205                                 f.f_desc = slap_bv2tmp_ad( &type, op->o_tmpmemctx );
 206                         }
 207                         *text = NULL;
 208                 }
 209
 210                 assert( f.f_desc != NULL );
 211                 } break;
 212
 213         case LDAP_FILTER_APPROX:
 214                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
 215                 err = get_ava( op, ber, &f, SLAP_MR_EQUALITY_APPROX, text );
 216                 if ( err != LDAP_SUCCESS ) {
 217                         break;
 218                 }
 219                 assert( f.f_ava != NULL );
 220                 break;
 221
 222         case LDAP_FILTER_AND:
 223                 Debug( LDAP_DEBUG_FILTER, "AND\n", 0, 0, 0 );
 224                 err = get_filter_list( op, ber, &f.f_and, text );
 225                 if ( err != LDAP_SUCCESS ) {
 226                         break;
 227                 }
 228                 if ( f.f_and == NULL ) {
 229                         f.f_choice = SLAPD_FILTER_COMPUTED;
 230                         f.f_result = LDAP_COMPARE_TRUE;
 231                 }
 232                 /* no assert - list could be empty */
 233                 break;
 234
 235         case LDAP_FILTER_OR:
 236                 Debug( LDAP_DEBUG_FILTER, "OR\n", 0, 0, 0 );
 237                 err = get_filter_list( op, ber, &f.f_or, text );
 238                 if ( err != LDAP_SUCCESS ) {
 239                         break;
 240                 }
 241                 if ( f.f_or == NULL ) {
 242                         f.f_choice = SLAPD_FILTER_COMPUTED;
 243                         f.f_result = LDAP_COMPARE_FALSE;
 244                 }
 245                 /* no assert - list could be empty */
 246                 break;
 247
 248         case LDAP_FILTER_NOT:
 249                 Debug( LDAP_DEBUG_FILTER, "NOT\n", 0, 0, 0 );
 250                 (void) ber_skip_tag( ber, &len );
 251                 err = get_filter( op, ber, &f.f_not, text );
 252                 if ( err != LDAP_SUCCESS ) {
 253                         break;
 254                 }
 255
 256                 assert( f.f_not != NULL );
 257                 if ( f.f_not->f_choice == SLAPD_FILTER_COMPUTED ) {
 258                         int fresult = f.f_not->f_result;
 259                         f.f_choice = SLAPD_FILTER_COMPUTED;
 260                         op->o_tmpfree( f.f_not, op->o_tmpmemctx );
 261                         f.f_not = NULL;
 262
 263                         switch( fresult ) {
 264                         case LDAP_COMPARE_TRUE:
 265                                 f.f_result = LDAP_COMPARE_FALSE;
 266                                 break;
 267                         case LDAP_COMPARE_FALSE:
 268                                 f.f_result = LDAP_COMPARE_TRUE;
 269                                 break;
 270                         default: ;
 271                                 /* (!Undefined) is Undefined */
 272                         }
 273                 }
 274                 break;
 275
 276         case LDAP_FILTER_EXT:
 277                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
 278
 279                 err = get_mra( op, ber, &f, text );
 280                 if ( err != LDAP_SUCCESS ) {
 281                         break;
 282                 }
 283
 284                 assert( f.f_mra != NULL );
 285                 break;
 286
 287         default:
 288                 (void) ber_scanf( ber, "x" ); /* skip the element */
 289                 Debug( LDAP_DEBUG_ANY, "get_filter: unknown filter type=%lu\n",
 290                         f.f_choice, 0, 0 );
 291                 f.f_choice = SLAPD_FILTER_COMPUTED;
 292                 f.f_result = SLAPD_COMPARE_UNDEFINED;
 293                 break;
 294         }
 295
 296         if( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
 297                 /* ignore error */
 298                 *text = NULL;
 299                 f.f_choice = SLAPD_FILTER_COMPUTED;
 300                 f.f_result = SLAPD_COMPARE_UNDEFINED;
 301                 err = LDAP_SUCCESS;
 302         }
 303
 304         if ( err == LDAP_SUCCESS ) {
 305                 *filt = op->o_tmpalloc( sizeof(f), op->o_tmpmemctx );
 306                 **filt = f;
 307         }
 308
 309         Debug( LDAP_DEBUG_FILTER, "end get_filter %d\n", err, 0, 0 );
 310
 311         return( err );
 312 }
 313
 314 static int
 315 get_filter_list( Operation *op, BerElement *ber,
 316         Filter **f,
 317         const char **text )
 318 {
 319         Filter          **new;
 320         int             err;
 321         ber_tag_t       tag;
 322         ber_len_t       len;
 323         char            *last;
 324
 325         Debug( LDAP_DEBUG_FILTER, "begin get_filter_list\n", 0, 0, 0 );
 326         new = f;
 327         for ( tag = ber_first_element( ber, &len, &last );
 328                 tag != LBER_DEFAULT;
 329                 tag = ber_next_element( ber, &len, last ) )
 330         {
 331                 err = get_filter( op, ber, new, text );
 332                 if ( err != LDAP_SUCCESS )
 333                         return( err );
 334                 new = &(*new)->f_next;
 335         }
 336         *new = NULL;
 337
 338         Debug( LDAP_DEBUG_FILTER, "end get_filter_list\n", 0, 0, 0 );
 339         return( LDAP_SUCCESS );
 340 }
 341
 342 static int
 343 get_ssa(
 344         Operation *op,
 345         BerElement      *ber,
 346         Filter          *f,
 347         const char      **text )
 348 {
 349         ber_tag_t       tag;
 350         ber_len_t       len;
 351         int     rc;
 352         struct berval desc, value, nvalue;
 353         char            *last;
 354         SubstringsAssertion ssa;
 355
 356         *text = "error decoding filter";
 357
 358         Debug( LDAP_DEBUG_FILTER, "begin get_ssa\n", 0, 0, 0 );
 359         if ( ber_scanf( ber, "{m" /*}*/, &desc ) == LBER_ERROR ) {
 360                 return SLAPD_DISCONNECT;
 361         }
 362
 363         *text = NULL;
 364
 365         ssa.sa_desc = NULL;
 366         ssa.sa_initial.bv_val = NULL;
 367         ssa.sa_any = NULL;
 368         ssa.sa_final.bv_val = NULL;
 369
 370         rc = slap_bv2ad( &desc, &ssa.sa_desc, text );
 371
 372         if( rc != LDAP_SUCCESS ) {
 373                 f->f_choice |= SLAPD_FILTER_UNDEFINED;
 374                 rc = slap_bv2undef_ad( &desc, &ssa.sa_desc, text,
 375                         SLAP_AD_PROXIED|SLAP_AD_NOINSERT );
 376
 377                 if( rc != LDAP_SUCCESS ) {
 378                         Debug( LDAP_DEBUG_ANY,
 379                                 "get_ssa: conn %lu unknown attribute type=%s (%ld)\n",
 380                                 op->o_connid, desc.bv_val, (long) rc );
 381
 382                         ssa.sa_desc = slap_bv2tmp_ad( &desc, op->o_tmpmemctx );
 383                 }
 384         }
 385
 386         rc = LDAP_PROTOCOL_ERROR;
 387
 388         /* If there is no substring matching rule, there's nothing
 389          * we can do with this filter. But we continue to parse it
 390          * for logging purposes.
 391          */
 392         if ( ssa.sa_desc->ad_type->sat_substr == NULL ) {
 393                 f->f_choice |= SLAPD_FILTER_UNDEFINED;
 394                 Debug( LDAP_DEBUG_FILTER,
 395                 "get_ssa: no substring matching rule for attributeType %s\n",
 396                         desc.bv_val, 0, 0 );
 397         }
 398
 399         for ( tag = ber_first_element( ber, &len, &last );
 400                 tag != LBER_DEFAULT;
 401                 tag = ber_next_element( ber, &len, last ) )
 402         {
 403                 unsigned usage;
 404
 405                 if ( ber_scanf( ber, "m", &value ) == LBER_ERROR ) {
 406                         rc = SLAPD_DISCONNECT;
 407                         goto return_error;
 408                 }
 409
 410                 if ( value.bv_val == NULL || value.bv_len == 0 ) {
 411                         rc = LDAP_INVALID_SYNTAX;
 412                         goto return_error;
 413                 }
 414
 415                 switch ( tag ) {
 416                 case LDAP_SUBSTRING_INITIAL:
 417                         if ( ssa.sa_initial.bv_val != NULL
 418                                 || ssa.sa_any != NULL
 419                                 || ssa.sa_final.bv_val != NULL )
 420                         {
 421                                 rc = LDAP_PROTOCOL_ERROR;
 422                                 goto return_error;
 423                         }
 424                         usage = SLAP_MR_SUBSTR_INITIAL;
 425                         break;
 426
 427                 case LDAP_SUBSTRING_ANY:
 428                         if ( ssa.sa_final.bv_val != NULL ) {
 429                                 rc = LDAP_PROTOCOL_ERROR;
 430                                 goto return_error;
 431                         }
 432                         usage = SLAP_MR_SUBSTR_ANY;
 433                         break;
 434
 435                 case LDAP_SUBSTRING_FINAL:
 436                         if ( ssa.sa_final.bv_val != NULL ) {
 437                                 rc = LDAP_PROTOCOL_ERROR;
 438                                 goto return_error;
 439                         }
 440
 441                         usage = SLAP_MR_SUBSTR_FINAL;
 442                         break;
 443
 444                 default:
 445                         Debug( LDAP_DEBUG_FILTER,
 446                                 "  unknown substring choice=%ld\n",
 447                                 (long) tag, 0, 0 );
 448
 449                         rc = LDAP_PROTOCOL_ERROR;
 450                         goto return_error;
 451                 }
 452
 453                 /* validate/normalize using equality matching rule validator! */
 454                 rc = asserted_value_validate_normalize(
 455                         ssa.sa_desc, ssa.sa_desc->ad_type->sat_equality,
 456                         usage, &value, &nvalue, text, op->o_tmpmemctx );
 457                 if( rc != LDAP_SUCCESS ) {
 458                         f->f_choice |= SLAPD_FILTER_UNDEFINED;
 459                         Debug( LDAP_DEBUG_FILTER,
 460                         "get_ssa: illegal value for attributeType %s (%d) %s\n",
 461                                 desc.bv_val, rc, *text );
 462                         ber_dupbv_x( &nvalue, &value, op->o_tmpmemctx );
 463                 }
 464
 465                 switch ( tag ) {
 466                 case LDAP_SUBSTRING_INITIAL:
 467                         Debug( LDAP_DEBUG_FILTER, "  INITIAL\n", 0, 0, 0 );
 468                         ssa.sa_initial = nvalue;
 469                         break;
 470
 471                 case LDAP_SUBSTRING_ANY:
 472                         Debug( LDAP_DEBUG_FILTER, "  ANY\n", 0, 0, 0 );
 473                         ber_bvarray_add_x( &ssa.sa_any, &nvalue, op->o_tmpmemctx );
 474                         break;
 475
 476                 case LDAP_SUBSTRING_FINAL:
 477                         Debug( LDAP_DEBUG_FILTER, "  FINAL\n", 0, 0, 0 );
 478                         ssa.sa_final = nvalue;
 479                         break;
 480
 481                 default:
 482                         assert( 0 );
 483                         slap_sl_free( nvalue.bv_val, op->o_tmpmemctx );
 484                         rc = LDAP_PROTOCOL_ERROR;
 485
 486 return_error:
 487                         Debug( LDAP_DEBUG_FILTER, "  error=%ld\n",
 488                                 (long) rc, 0, 0 );
 489                         slap_sl_free( ssa.sa_initial.bv_val, op->o_tmpmemctx );
 490                         ber_bvarray_free_x( ssa.sa_any, op->o_tmpmemctx );
 491                         if ( ssa.sa_desc->ad_flags & SLAP_DESC_TEMPORARY )
 492                                 op->o_tmpfree( ssa.sa_desc, op->o_tmpmemctx );
 493                         slap_sl_free( ssa.sa_final.bv_val, op->o_tmpmemctx );
 494                         return rc;
 495                 }
 496
 497                 *text = NULL;
 498                 rc = LDAP_SUCCESS;
 499         }
 500
 501         if( rc == LDAP_SUCCESS ) {
 502                 f->f_sub = op->o_tmpalloc( sizeof( ssa ), op->o_tmpmemctx );
 503                 *f->f_sub = ssa;
 504         }
 505
 506         Debug( LDAP_DEBUG_FILTER, "end get_ssa\n", 0, 0, 0 );
 507         return rc /* LDAP_SUCCESS */ ;
 508 }
 509
 510 void
 511 filter_free_x( Operation *op, Filter *f, int freeme )
 512 {
 513         Filter  *p, *next;
 514
 515         if ( f == NULL ) {
 516                 return;
 517         }
 518
 519         f->f_choice &= SLAPD_FILTER_MASK;
 520
 521         switch ( f->f_choice ) {
 522         case LDAP_FILTER_PRESENT:
 523                 if ( f->f_desc->ad_flags & SLAP_DESC_TEMPORARY )
 524                         op->o_tmpfree( f->f_desc, op->o_tmpmemctx );
 525                 break;
 526
 527         case LDAP_FILTER_EQUALITY:
 528         case LDAP_FILTER_GE:
 529         case LDAP_FILTER_LE:
 530         case LDAP_FILTER_APPROX:
 531                 ava_free( op, f->f_ava, 1 );
 532                 break;
 533
 534         case LDAP_FILTER_SUBSTRINGS:
 535                 if ( f->f_sub_initial.bv_val != NULL ) {
 536                         op->o_tmpfree( f->f_sub_initial.bv_val, op->o_tmpmemctx );
 537                 }
 538                 ber_bvarray_free_x( f->f_sub_any, op->o_tmpmemctx );
 539                 if ( f->f_sub_final.bv_val != NULL ) {
 540                         op->o_tmpfree( f->f_sub_final.bv_val, op->o_tmpmemctx );
 541                 }
 542                 if ( f->f_sub->sa_desc->ad_flags & SLAP_DESC_TEMPORARY )
 543                         op->o_tmpfree( f->f_sub->sa_desc, op->o_tmpmemctx );
 544                 op->o_tmpfree( f->f_sub, op->o_tmpmemctx );
 545                 break;
 546
 547         case LDAP_FILTER_AND:
 548         case LDAP_FILTER_OR:
 549         case LDAP_FILTER_NOT:
 550                 for ( p = f->f_list; p != NULL; p = next ) {
 551                         next = p->f_next;
 552                         filter_free_x( op, p, 1 );
 553                 }
 554                 break;
 555
 556         case LDAP_FILTER_EXT:
 557                 mra_free( op, f->f_mra, 1 );
 558                 break;
 559
 560         case SLAPD_FILTER_COMPUTED:
 561                 break;
 562
 563         default:
 564                 Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
 565                         f->f_choice, 0, 0 );
 566                 break;
 567         }
 568
 569         if ( freeme ) {
 570                 op->o_tmpfree( f, op->o_tmpmemctx );
 571         }
 572 }
 573
 574 void
 575 filter_free( Filter *f )
 576 {
 577         Operation op;
 578         Opheader ohdr;
 579
 580         op.o_hdr = &ohdr;
 581         op.o_tmpmemctx = slap_sl_context( f );
 582         op.o_tmpmfuncs = &slap_sl_mfuncs;
 583         filter_free_x( &op, f, 1 );
 584 }
 585
 586 void
 587 filter2bv_x( Operation *op, Filter *f, struct berval *fstr )
 588 {
 589         int             i;
 590         Filter          *p;
 591         struct berval   tmp, value;
 592         static struct berval
 593                         ber_bvfalse = BER_BVC( "(?=false)" ),
 594                         ber_bvtrue = BER_BVC( "(?=true)" ),
 595                         ber_bvundefined = BER_BVC( "(?=undefined)" ),
 596                         ber_bverror = BER_BVC( "(?=error)" ),
 597                         ber_bvunknown = BER_BVC( "(?=unknown)" ),
 598                         ber_bvnone = BER_BVC( "(?=none)" );
 599         ber_len_t       len;
 600         ber_tag_t       choice;
 601         int undef;
 602         char *sign;
 603
 604         if ( f == NULL ) {
 605                 ber_dupbv_x( fstr, &ber_bvnone, op->o_tmpmemctx );
 606                 return;
 607         }
 608
 609         undef = f->f_choice & SLAPD_FILTER_UNDEFINED;
 610         choice = f->f_choice & SLAPD_FILTER_MASK;
 611
 612         switch ( choice ) {
 613         case LDAP_FILTER_EQUALITY:
 614                 fstr->bv_len = STRLENOF("(=)");
 615                 sign = "=";
 616                 goto simple;
 617         case LDAP_FILTER_GE:
 618                 fstr->bv_len = STRLENOF("(>=)");
 619                 sign = ">=";
 620                 goto simple;
 621         case LDAP_FILTER_LE:
 622                 fstr->bv_len = STRLENOF("(<=)");
 623                 sign = "<=";
 624                 goto simple;
 625         case LDAP_FILTER_APPROX:
 626                 fstr->bv_len = STRLENOF("(~=)");
 627                 sign = "~=";
 628
 629 simple:
 630                 value = f->f_av_value;
 631                 if ( f->f_av_desc->ad_type->sat_equality &&
 632                         !undef &&
 633                         ( f->f_av_desc->ad_type->sat_equality->smr_usage & SLAP_MR_MUTATION_NORMALIZER ))
 634                 {
 635                         f->f_av_desc->ad_type->sat_equality->smr_normalize(
 636                                 (SLAP_MR_DENORMALIZE|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX),
 637                                 NULL, NULL, &f->f_av_value, &value, op->o_tmpmemctx );
 638                 }
 639
 640                 filter_escape_value_x( &value, &tmp, op->o_tmpmemctx );
 641                 /* NOTE: tmp can legitimately be NULL (meaning empty)
 642                  * since in a Filter values in AVAs are supposed
 643                  * to have been normalized, meaning that an empty value
 644                  * is legal for that attribute's syntax */
 645
 646                 fstr->bv_len += f->f_av_desc->ad_cname.bv_len + tmp.bv_len;
 647                 if ( undef )
 648                         fstr->bv_len++;
 649                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 650
 651                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s)",
 652                         undef ? "?" : "",
 653                         f->f_av_desc->ad_cname.bv_val, sign,
 654                         tmp.bv_len ? tmp.bv_val : "" );
 655
 656                 if ( value.bv_val != f->f_av_value.bv_val ) {
 657                         ber_memfree_x( value.bv_val, op->o_tmpmemctx );
 658                 }
 659
 660                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 661                 break;
 662
 663         case LDAP_FILTER_SUBSTRINGS:
 664                 fstr->bv_len = f->f_sub_desc->ad_cname.bv_len +
 665                         STRLENOF("(=*)");
 666                 if ( undef )
 667                         fstr->bv_len++;
 668                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 669
 670                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s=*)",
 671                         undef ? "?" : "",
 672                         f->f_sub_desc->ad_cname.bv_val );
 673
 674                 if ( f->f_sub_initial.bv_val != NULL ) {
 675                         ber_len_t tmplen;
 676
 677                         len = fstr->bv_len;
 678
 679                         filter_escape_value_x( &f->f_sub_initial, &tmp, op->o_tmpmemctx );
 680                         tmplen = tmp.bv_len;
 681
 682                         fstr->bv_len += tmplen;
 683                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
 684                                 fstr->bv_len + 1, op->o_tmpmemctx );
 685
 686                         snprintf( &fstr->bv_val[len - 2],
 687                                 tmplen + STRLENOF( /*(*/ "*)" ) + 1,
 688                                 /* "(attr=" */ "%s*)",
 689                                 tmp.bv_len ? tmp.bv_val : "");
 690
 691                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 692                 }
 693
 694                 if ( f->f_sub_any != NULL ) {
 695                         for ( i = 0; f->f_sub_any[i].bv_val != NULL; i++ ) {
 696                                 ber_len_t tmplen;
 697
 698                                 len = fstr->bv_len;
 699                                 filter_escape_value_x( &f->f_sub_any[i],
 700                                         &tmp, op->o_tmpmemctx );
 701                                 tmplen = tmp.bv_len;
 702
 703                                 fstr->bv_len += tmplen + STRLENOF( /*(*/ ")" );
 704                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
 705                                         fstr->bv_len + 1, op->o_tmpmemctx );
 706
 707                                 snprintf( &fstr->bv_val[len - 1],
 708                                         tmplen + STRLENOF( /*(*/ "*)" ) + 1,
 709                                         /* "(attr=[init]*[any*]" */ "%s*)",
 710                                         tmp.bv_len ? tmp.bv_val : "");
 711                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 712                         }
 713                 }
 714
 715                 if ( f->f_sub_final.bv_val != NULL ) {
 716                         ber_len_t tmplen;
 717
 718                         len = fstr->bv_len;
 719
 720                         filter_escape_value_x( &f->f_sub_final, &tmp, op->o_tmpmemctx );
 721                         tmplen = tmp.bv_len;
 722
 723                         fstr->bv_len += tmplen;
 724                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
 725                                 fstr->bv_len + 1, op->o_tmpmemctx );
 726
 727                         snprintf( &fstr->bv_val[len - 1],
 728                                 tmplen + STRLENOF( /*(*/ ")" ) + 1,
 729                                 /* "(attr=[init*][any*]" */ "%s)",
 730                                 tmp.bv_len ? tmp.bv_val : "");
 731
 732                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 733                 }
 734
 735                 break;
 736
 737         case LDAP_FILTER_PRESENT:
 738                 fstr->bv_len = f->f_desc->ad_cname.bv_len +
 739                         STRLENOF("(=*)");
 740                 if ( undef )
 741                         fstr->bv_len++;
 742
 743                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 744
 745                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s=*)",
 746                         undef ? "?" : "",
 747                         f->f_desc->ad_cname.bv_val );
 748                 break;
 749
 750         case LDAP_FILTER_AND:
 751         case LDAP_FILTER_OR:
 752         case LDAP_FILTER_NOT:
 753                 fstr->bv_len = STRLENOF("(%)");
 754                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 755
 756                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
 757                         f->f_choice == LDAP_FILTER_AND ? '&' :
 758                         f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 759
 760                 for ( p = f->f_list; p != NULL; p = p->f_next ) {
 761                         len = fstr->bv_len;
 762
 763                         filter2bv_x( op, p, &tmp );
 764
 765                         fstr->bv_len += tmp.bv_len;
 766                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 767                                 op->o_tmpmemctx );
 768
 769                         snprintf( &fstr->bv_val[len-1],
 770                                 tmp.bv_len + STRLENOF( /*(*/ ")" ) + 1,
 771                                 /*"("*/ "%s)", tmp.bv_val );
 772
 773                         op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
 774                 }
 775
 776                 break;
 777
 778         case LDAP_FILTER_EXT: {
 779                 struct berval ad;
 780
 781                 filter_escape_value_x( &f->f_mr_value, &tmp, op->o_tmpmemctx );
 782                 /* NOTE: tmp can legitimately be NULL (meaning empty)
 783                  * since in a Filter values in MRAs are supposed
 784                  * to have been normalized, meaning that an empty value
 785                  * is legal for that attribute's syntax */
 786
 787                 if ( f->f_mr_desc ) {
 788                         ad = f->f_mr_desc->ad_cname;
 789                 } else {
 790                         ad.bv_len = 0;
 791                         ad.bv_val = "";
 792                 }
 793
 794                 fstr->bv_len = ad.bv_len +
 795                         ( f->f_mr_dnattrs ? STRLENOF(":dn") : 0 ) +
 796                         ( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len+1 : 0 ) +
 797                         tmp.bv_len + STRLENOF("(:=)");
 798                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 799
 800                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s%s:=%s)",
 801                         undef ? "?" : "",
 802                         ad.bv_val,
 803                         f->f_mr_dnattrs ? ":dn" : "",
 804                         f->f_mr_rule_text.bv_len ? ":" : "",
 805                         f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_val : "",
 806                         tmp.bv_len ? tmp.bv_val : "" );
 807                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 808                 } break;
 809
 810         case SLAPD_FILTER_COMPUTED:
 811                 switch ( f->f_result ) {
 812                 case LDAP_COMPARE_FALSE:
 813                         tmp = ber_bvfalse;
 814                         break;
 815
 816                 case LDAP_COMPARE_TRUE:
 817                         tmp = ber_bvtrue;
 818                         break;
 819
 820                 case SLAPD_COMPARE_UNDEFINED:
 821                         tmp = ber_bvundefined;
 822                         break;
 823
 824                 default:
 825                         tmp = ber_bverror;
 826                         break;
 827                 }
 828
 829                 ber_dupbv_x( fstr, &tmp, op->o_tmpmemctx );
 830                 break;
 831
 832         default:
 833                 ber_dupbv_x( fstr, &ber_bvunknown, op->o_tmpmemctx );
 834                 break;
 835         }
 836 }
 837
 838 void
 839 filter2bv( Filter *f, struct berval *fstr )
 840 {
 841         Operation op;
 842         Opheader ohdr;
 843
 844         op.o_hdr = &ohdr;
 845         op.o_tmpmemctx = NULL;
 846         op.o_tmpmfuncs = &ch_mfuncs;
 847
 848         filter2bv_x( &op, f, fstr );
 849 }
 850
 851 Filter *
 852 filter_dup( Filter *f, void *memctx )
 853 {
 854         BerMemoryFunctions *mf = &slap_sl_mfuncs;
 855         Filter *n;
 856
 857         if ( !f )
 858                 return NULL;
 859
 860         n = mf->bmf_malloc( sizeof(Filter), memctx );
 861         n->f_choice = f->f_choice;
 862         n->f_next = NULL;
 863
 864         switch( f->f_choice & SLAPD_FILTER_MASK ) {
 865         case SLAPD_FILTER_COMPUTED:
 866                 n->f_result = f->f_result;
 867                 break;
 868         case LDAP_FILTER_PRESENT:
 869                 if ( f->f_desc->ad_flags & SLAP_DESC_TEMPORARY )
 870                         n->f_desc = slap_bv2tmp_ad( &f->f_desc->ad_cname, memctx );
 871                 else
 872                         n->f_desc = f->f_desc;
 873                 break;
 874         case LDAP_FILTER_EQUALITY:
 875         case LDAP_FILTER_GE:
 876         case LDAP_FILTER_LE:
 877         case LDAP_FILTER_APPROX:
 878                 /* Should this be ava_dup() ? */
 879                 n->f_ava = mf->bmf_calloc( 1, sizeof(AttributeAssertion), memctx );
 880                 *n->f_ava = *f->f_ava;
 881                 if ( f->f_av_desc->ad_flags & SLAP_DESC_TEMPORARY )
 882                         n->f_av_desc = slap_bv2tmp_ad( &f->f_av_desc->ad_cname, memctx );
 883                 ber_dupbv_x( &n->f_av_value, &f->f_av_value, memctx );
 884                 break;
 885         case LDAP_FILTER_SUBSTRINGS:
 886                 n->f_sub = mf->bmf_calloc( 1, sizeof(SubstringsAssertion), memctx );
 887                 if ( f->f_sub_desc->ad_flags & SLAP_DESC_TEMPORARY )
 888                         n->f_sub_desc = slap_bv2tmp_ad( &f->f_sub_desc->ad_cname, memctx );
 889                 else
 890                         n->f_sub_desc = f->f_sub_desc;
 891                 if ( !BER_BVISNULL( &f->f_sub_initial ))
 892                         ber_dupbv_x( &n->f_sub_initial, &f->f_sub_initial, memctx );
 893                 if ( f->f_sub_any ) {
 894                         int i;
 895                         for ( i = 0; !BER_BVISNULL( &f->f_sub_any[i] ); i++ );
 896                         n->f_sub_any = mf->bmf_malloc(( i+1 )*sizeof( struct berval ),
 897                                 memctx );
 898                         for ( i = 0; !BER_BVISNULL( &f->f_sub_any[i] ); i++ ) {
 899                                 ber_dupbv_x( &n->f_sub_any[i], &f->f_sub_any[i], memctx );
 900                         }
 901                         BER_BVZERO( &n->f_sub_any[i] );
 902                 }
 903                 if ( !BER_BVISNULL( &f->f_sub_final ))
 904                         ber_dupbv_x( &n->f_sub_final, &f->f_sub_final, memctx );
 905                 break;
 906         case LDAP_FILTER_EXT: {
 907                 /* Should this be mra_dup() ? */
 908                 ber_len_t length;
 909                 length = sizeof(MatchingRuleAssertion);
 910                 if ( !BER_BVISNULL( &f->f_mr_rule_text ))
 911                         length += f->f_mr_rule_text.bv_len + 1;
 912                 n->f_mra = mf->bmf_calloc( 1, length, memctx );
 913                 *n->f_mra = *f->f_mra;
 914                 if ( f->f_mr_desc && ( f->f_sub_desc->ad_flags & SLAP_DESC_TEMPORARY ))
 915                         n->f_mr_desc = slap_bv2tmp_ad( &f->f_mr_desc->ad_cname, memctx );
 916                 ber_dupbv_x( &n->f_mr_value, &f->f_mr_value, memctx );
 917                 if ( !BER_BVISNULL( &f->f_mr_rule_text )) {
 918                         n->f_mr_rule_text.bv_val = (char *)(n->f_mra+1);
 919                         AC_MEMCPY(n->f_mr_rule_text.bv_val,
 920                                 f->f_mr_rule_text.bv_val, f->f_mr_rule_text.bv_len );
 921                 }
 922                 } break;
 923         case LDAP_FILTER_AND:
 924         case LDAP_FILTER_OR:
 925         case LDAP_FILTER_NOT: {
 926                 Filter **p;
 927                 for ( p = &n->f_list, f = f->f_list; f; f = f->f_next ) {
 928                         *p = filter_dup( f, memctx );
 929                         p = &(*p)->f_next;
 930                 }
 931                 } break;
 932         }
 933         return n;
 934 }
 935
 936 static int
 937 get_simple_vrFilter(
 938         Operation *op,
 939         BerElement *ber,
 940         ValuesReturnFilter **filt,
 941         const char **text )
 942 {
 943         ber_tag_t       tag;
 944         ber_len_t       len;
 945         int             err;
 946         ValuesReturnFilter vrf;
 947
 948         Debug( LDAP_DEBUG_FILTER, "begin get_simple_vrFilter\n", 0, 0, 0 );
 949
 950         tag = ber_peek_tag( ber, &len );
 951
 952         if( tag == LBER_ERROR ) {
 953                 *text = "error decoding filter";
 954                 return SLAPD_DISCONNECT;
 955         }
 956
 957         vrf.vrf_next = NULL;
 958
 959         err = LDAP_SUCCESS;
 960         vrf.vrf_choice = tag;
 961
 962         switch ( vrf.vrf_choice ) {
 963         case LDAP_FILTER_EQUALITY:
 964                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 965                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_EQUALITY, text );
 966                 if ( err != LDAP_SUCCESS ) {
 967                         break;
 968                 }
 969
 970                 assert( vrf.vrf_ava != NULL );
 971                 break;
 972
 973         case LDAP_FILTER_SUBSTRINGS:
 974                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 975                 err = get_ssa( op, ber, (Filter *)&vrf, text );
 976                 break;
 977
 978         case LDAP_FILTER_GE:
 979                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 980                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_ORDERING, text );
 981                 if ( err != LDAP_SUCCESS ) {
 982                         break;
 983                 }
 984                 break;
 985
 986         case LDAP_FILTER_LE:
 987                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 988                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_ORDERING, text );
 989                 if ( err != LDAP_SUCCESS ) {
 990                         break;
 991                 }
 992                 break;
 993
 994         case LDAP_FILTER_PRESENT: {
 995                 struct berval type;
 996
 997                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 998                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
 999                         err = SLAPD_DISCONNECT;
1000                         *text = "error decoding filter";
1001                         break;
1002                 }
1003
1004                 vrf.vrf_desc = NULL;
1005                 err = slap_bv2ad( &type, &vrf.vrf_desc, text );
1006
1007                 if( err != LDAP_SUCCESS ) {
1008                         vrf.vrf_choice |= SLAPD_FILTER_UNDEFINED;
1009                         err = slap_bv2undef_ad( &type, &vrf.vrf_desc, text,
1010                                 SLAP_AD_PROXIED);
1011
1012                         if( err != LDAP_SUCCESS ) {
1013                                 /* unrecognized attribute description or other error */
1014                                 Debug( LDAP_DEBUG_ANY,
1015                                         "get_simple_vrFilter: conn %lu unknown "
1016                                         "attribute type=%s (%d)\n",
1017                                         op->o_connid, type.bv_val, err );
1018
1019                                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1020                                 vrf.vrf_result = LDAP_COMPARE_FALSE;
1021                                 err = LDAP_SUCCESS;
1022                                 break;
1023                         }
1024                 }
1025                 } break;
1026
1027         case LDAP_FILTER_APPROX:
1028                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
1029                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_EQUALITY_APPROX, text );
1030                 if ( err != LDAP_SUCCESS ) {
1031                         break;
1032                 }
1033                 break;
1034
1035         case LDAP_FILTER_EXT:
1036                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
1037
1038                 err = get_mra( op, ber, (Filter *)&vrf, text );
1039                 if ( err != LDAP_SUCCESS ) {
1040                         break;
1041                 }
1042
1043                 assert( vrf.vrf_mra != NULL );
1044                 break;
1045
1046         default:
1047                 (void) ber_scanf( ber, "x" ); /* skip the element */
1048                 Debug( LDAP_DEBUG_ANY, "get_simple_vrFilter: unknown filter type=%lu\n",
1049                         vrf.vrf_choice, 0, 0 );
1050                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1051                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
1052                 break;
1053         }
1054
1055         if ( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
1056                 /* ignore error */
1057                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1058                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
1059                 err = LDAP_SUCCESS;
1060         }
1061
1062         if ( err == LDAP_SUCCESS ) {
1063                 *filt = op->o_tmpalloc( sizeof vrf, op->o_tmpmemctx );
1064                 **filt = vrf;
1065         }
1066
1067         Debug( LDAP_DEBUG_FILTER, "end get_simple_vrFilter %d\n", err, 0, 0 );
1068
1069         return err;
1070 }
1071
1072 int
1073 get_vrFilter( Operation *op, BerElement *ber,
1074         ValuesReturnFilter **vrf,
1075         const char **text )
1076 {
1077         /*
1078          * A ValuesReturnFilter looks like this:
1079          *
1080          *      ValuesReturnFilter ::= SEQUENCE OF SimpleFilterItem
1081          *      SimpleFilterItem ::= CHOICE {
1082          *              equalityMatch   [3]     AttributeValueAssertion,
1083          *              substrings      [4]     SubstringFilter,
1084          *              greaterOrEqual  [5]     AttributeValueAssertion,
1085          *              lessOrEqual     [6]     AttributeValueAssertion,
1086          *              present         [7]     AttributeType,
1087          *              approxMatch     [8]     AttributeValueAssertion,
1088          *              extensibleMatch [9]     SimpleMatchingAssertion -- LDAPv3
1089          *      }
1090          *
1091          *      SubstringFilter ::= SEQUENCE {
1092          *              type               AttributeType,
1093          *              SEQUENCE OF CHOICE {
1094          *                      initial          [0] IA5String,
1095          *                      any              [1] IA5String,
1096          *                      final            [2] IA5String
1097          *              }
1098          *      }
1099          *
1100          *      SimpleMatchingAssertion ::= SEQUENCE {  -- LDAPv3
1101          *              matchingRule    [1] MatchingRuleId OPTIONAL,
1102          *              type            [2] AttributeDescription OPTIONAL,
1103          *              matchValue      [3] AssertionValue }
1104          */
1105
1106         ValuesReturnFilter **n;
1107         ber_tag_t       tag;
1108         ber_len_t       len;
1109         char            *last;
1110
1111         Debug( LDAP_DEBUG_FILTER, "begin get_vrFilter\n", 0, 0, 0 );
1112
1113         tag = ber_peek_tag( ber, &len );
1114
1115         if( tag == LBER_ERROR ) {
1116                 *text = "error decoding vrFilter";
1117                 return SLAPD_DISCONNECT;
1118         }
1119
1120         if( tag != LBER_SEQUENCE ) {
1121                 *text = "error decoding vrFilter, expect SEQUENCE tag";
1122                 return SLAPD_DISCONNECT;
1123         }
1124
1125         n = vrf;
1126         for ( tag = ber_first_element( ber, &len, &last );
1127                 tag != LBER_DEFAULT;
1128                 tag = ber_next_element( ber, &len, last ) )
1129         {
1130                 int err = get_simple_vrFilter( op, ber, n, text );
1131
1132                 if ( err != LDAP_SUCCESS ) return( err );
1133
1134                 n = &(*n)->vrf_next;
1135         }
1136         *n = NULL;
1137
1138         Debug( LDAP_DEBUG_FILTER, "end get_vrFilter\n", 0, 0, 0 );
1139         return( LDAP_SUCCESS );
1140 }
1141
1142 void
1143 vrFilter_free( Operation *op, ValuesReturnFilter *vrf )
1144 {
1145         ValuesReturnFilter      *p, *next;
1146
1147         if ( vrf == NULL ) {
1148                 return;
1149         }
1150
1151         for ( p = vrf; p != NULL; p = next ) {
1152                 next = p->vrf_next;
1153
1154                 switch ( vrf->vrf_choice & SLAPD_FILTER_MASK ) {
1155                 case LDAP_FILTER_PRESENT:
1156                         break;
1157
1158                 case LDAP_FILTER_EQUALITY:
1159                 case LDAP_FILTER_GE:
1160                 case LDAP_FILTER_LE:
1161                 case LDAP_FILTER_APPROX:
1162                         ava_free( op, vrf->vrf_ava, 1 );
1163                         break;
1164
1165                 case LDAP_FILTER_SUBSTRINGS:
1166                         if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1167                                 op->o_tmpfree( vrf->vrf_sub_initial.bv_val, op->o_tmpmemctx );
1168                         }
1169                         ber_bvarray_free_x( vrf->vrf_sub_any, op->o_tmpmemctx );
1170                         if ( vrf->vrf_sub_final.bv_val != NULL ) {
1171                                 op->o_tmpfree( vrf->vrf_sub_final.bv_val, op->o_tmpmemctx );
1172                         }
1173                         op->o_tmpfree( vrf->vrf_sub, op->o_tmpmemctx );
1174                         break;
1175
1176                 case LDAP_FILTER_EXT:
1177                         mra_free( op, vrf->vrf_mra, 1 );
1178                         break;
1179
1180                 case SLAPD_FILTER_COMPUTED:
1181                         break;
1182
1183                 default:
1184                         Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
1185                                 vrf->vrf_choice, 0, 0 );
1186                         break;
1187                 }
1188
1189                 op->o_tmpfree( vrf, op->o_tmpmemctx );
1190         }
1191 }
1192
1193 void
1194 vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1195 {
1196         ValuesReturnFilter      *p;
1197         struct berval tmp;
1198         ber_len_t len;
1199
1200         if ( vrf == NULL ) {
1201                 ber_str2bv_x( "No filter!", STRLENOF("No filter!"),
1202                         1, fstr, op->o_tmpmemctx );
1203                 return;
1204         }
1205
1206         fstr->bv_len = STRLENOF("()");
1207         fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1208
1209         snprintf( fstr->bv_val, fstr->bv_len + 1, "()");
1210
1211         for ( p = vrf; p != NULL; p = p->vrf_next ) {
1212                 len = fstr->bv_len;
1213
1214                 simple_vrFilter2bv( op, p, &tmp );
1215
1216                 fstr->bv_len += tmp.bv_len;
1217                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1218                         op->o_tmpmemctx );
1219
1220                 snprintf( &fstr->bv_val[len-1], tmp.bv_len + 2,
1221                         /*"("*/ "%s)", tmp.bv_val );
1222
1223                 op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
1224         }
1225 }
1226
1227 static void
1228 simple_vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1229 {
1230         struct berval tmp;
1231         ber_len_t len;
1232         int undef;
1233
1234         if ( vrf == NULL ) {
1235                 ber_str2bv_x( "No filter!", STRLENOF("No filter!"), 1, fstr,
1236                         op->o_tmpmemctx );
1237                 return;
1238         }
1239         undef = vrf->vrf_choice & SLAPD_FILTER_UNDEFINED;
1240
1241         switch ( vrf->vrf_choice & SLAPD_FILTER_MASK ) {
1242         case LDAP_FILTER_EQUALITY:
1243                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1244
1245                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1246                         tmp.bv_len + STRLENOF("(=)");
1247                 if ( undef ) fstr->bv_len++;
1248                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1249
1250                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
1251                         vrf->vrf_av_desc->ad_cname.bv_val,
1252                         tmp.bv_val );
1253
1254                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1255                 break;
1256
1257         case LDAP_FILTER_GE:
1258                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1259
1260                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1261                         tmp.bv_len + STRLENOF("(>=)");
1262                 if ( undef ) fstr->bv_len++;
1263                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1264
1265                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
1266                         vrf->vrf_av_desc->ad_cname.bv_val,
1267                         tmp.bv_val );
1268
1269                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1270                 break;
1271
1272         case LDAP_FILTER_LE:
1273                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1274
1275                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1276                         tmp.bv_len + STRLENOF("(<=)");
1277                 if ( undef ) fstr->bv_len++;
1278                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1279
1280                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
1281                         vrf->vrf_av_desc->ad_cname.bv_val,
1282                         tmp.bv_val );
1283
1284                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1285                 break;
1286
1287         case LDAP_FILTER_APPROX:
1288                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1289
1290                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1291                         tmp.bv_len + STRLENOF("(~=)");
1292                 if ( undef ) fstr->bv_len++;
1293                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1294
1295                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
1296                         vrf->vrf_av_desc->ad_cname.bv_val,
1297                         tmp.bv_val );
1298                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1299                 break;
1300
1301         case LDAP_FILTER_SUBSTRINGS:
1302                 fstr->bv_len = vrf->vrf_sub_desc->ad_cname.bv_len +
1303                         STRLENOF("(=*)");
1304                 if ( undef ) fstr->bv_len++;
1305                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1306
1307                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1308                         vrf->vrf_sub_desc->ad_cname.bv_val );
1309
1310                 if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1311                         len = fstr->bv_len;
1312
1313                         filter_escape_value_x( &vrf->vrf_sub_initial, &tmp, op->o_tmpmemctx );
1314
1315                         fstr->bv_len += tmp.bv_len;
1316                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1317                                 op->o_tmpmemctx );
1318
1319                         snprintf( &fstr->bv_val[len-2], tmp.bv_len+3,
1320                                 /* "(attr=" */ "%s*)",
1321                                 tmp.bv_val );
1322
1323                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1324                 }
1325
1326                 if ( vrf->vrf_sub_any != NULL ) {
1327                         int i;
1328                         for ( i = 0; vrf->vrf_sub_any[i].bv_val != NULL; i++ ) {
1329                                 len = fstr->bv_len;
1330                                 filter_escape_value_x( &vrf->vrf_sub_any[i], &tmp,
1331                                         op->o_tmpmemctx );
1332
1333                                 fstr->bv_len += tmp.bv_len + 1;
1334                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
1335                                         fstr->bv_len + 1, op->o_tmpmemctx );
1336
1337                                 snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1338                                         /* "(attr=[init]*[any*]" */ "%s*)",
1339                                         tmp.bv_val );
1340                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1341                         }
1342                 }
1343
1344                 if ( vrf->vrf_sub_final.bv_val != NULL ) {
1345                         len = fstr->bv_len;
1346
1347                         filter_escape_value_x( &vrf->vrf_sub_final, &tmp, op->o_tmpmemctx );
1348
1349                         fstr->bv_len += tmp.bv_len;
1350                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1351                                 op->o_tmpmemctx );
1352
1353                         snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1354                                 /* "(attr=[init*][any*]" */ "%s)",
1355                                 tmp.bv_val );
1356
1357                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1358                 }
1359
1360                 break;
1361
1362         case LDAP_FILTER_PRESENT:
1363                 fstr->bv_len = vrf->vrf_desc->ad_cname.bv_len +
1364                         STRLENOF("(=*)");
1365                 if ( undef ) fstr->bv_len++;
1366                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1367
1368                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1369                         vrf->vrf_desc->ad_cname.bv_val );
1370                 break;
1371
1372         case LDAP_FILTER_EXT: {
1373                 struct berval ad;
1374                 filter_escape_value_x( &vrf->vrf_mr_value, &tmp, op->o_tmpmemctx );
1375
1376                 if ( vrf->vrf_mr_desc ) {
1377                         ad = vrf->vrf_mr_desc->ad_cname;
1378                 } else {
1379                         ad.bv_len = 0;
1380                         ad.bv_val = "";
1381                 }
1382
1383                 fstr->bv_len = ad.bv_len +
1384                         ( vrf->vrf_mr_dnattrs ? STRLENOF(":dn") : 0 ) +
1385                         ( vrf->vrf_mr_rule_text.bv_len
1386                                 ? vrf->vrf_mr_rule_text.bv_len+1 : 0 ) +
1387                         tmp.bv_len + STRLENOF("(:=)");
1388                 if ( undef ) fstr->bv_len++;
1389                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1390
1391                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
1392                         ad.bv_val,
1393                         vrf->vrf_mr_dnattrs ? ":dn" : "",
1394                         vrf->vrf_mr_rule_text.bv_len ? ":" : "",
1395                         vrf->vrf_mr_rule_text.bv_len ? vrf->vrf_mr_rule_text.bv_val : "",
1396                         tmp.bv_val );
1397
1398                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1399                 } break;
1400
1401         case SLAPD_FILTER_COMPUTED:
1402                 ber_str2bv_x(
1403                         vrf->vrf_result == LDAP_COMPARE_FALSE ? "(?=false)" :
1404                         vrf->vrf_result == LDAP_COMPARE_TRUE ? "(?=true)" :
1405                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1406                                 ? "(?=undefined)" : "(?=error)",
1407                         vrf->vrf_result == LDAP_COMPARE_FALSE ? STRLENOF("(?=false)") :
1408                         vrf->vrf_result == LDAP_COMPARE_TRUE ? STRLENOF("(?=true)") :
1409                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1410                                 ? STRLENOF("(?=undefined)") : STRLENOF("(?=error)"),
1411                         1, fstr, op->o_tmpmemctx );
1412                 break;
1413
1414         default:
1415                 ber_str2bv_x( "(?=unknown)", STRLENOF("(?=unknown)"),
1416                         1, fstr, op->o_tmpmemctx );
1417                 break;
1418         }
1419 }