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 1998-2007 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         ber_tag_t       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         for ( tag = ber_first_element( ber, &len, &last );
 389                 tag != LBER_DEFAULT;
 390                 tag = ber_next_element( ber, &len, last ) )
 391         {
 392                 unsigned usage;
 393
 394                 rc = ber_scanf( ber, "m", &value );
 395                 if ( rc == LBER_ERROR ) {
 396                         rc = SLAPD_DISCONNECT;
 397                         goto return_error;
 398                 }
 399
 400                 if ( value.bv_val == NULL || value.bv_len == 0 ) {
 401                         rc = LDAP_INVALID_SYNTAX;
 402                         goto return_error;
 403                 }
 404
 405                 switch ( tag ) {
 406                 case LDAP_SUBSTRING_INITIAL:
 407                         if ( ssa.sa_initial.bv_val != NULL
 408                                 || ssa.sa_any != NULL
 409                                 || ssa.sa_final.bv_val != NULL )
 410                         {
 411                                 rc = LDAP_PROTOCOL_ERROR;
 412                                 goto return_error;
 413                         }
 414                         usage = SLAP_MR_SUBSTR_INITIAL;
 415                         break;
 416
 417                 case LDAP_SUBSTRING_ANY:
 418                         if ( ssa.sa_final.bv_val != NULL ) {
 419                                 rc = LDAP_PROTOCOL_ERROR;
 420                                 goto return_error;
 421                         }
 422                         usage = SLAP_MR_SUBSTR_ANY;
 423                         break;
 424
 425                 case LDAP_SUBSTRING_FINAL:
 426                         if ( ssa.sa_final.bv_val != NULL ) {
 427                                 rc = LDAP_PROTOCOL_ERROR;
 428                                 goto return_error;
 429                         }
 430
 431                         usage = SLAP_MR_SUBSTR_FINAL;
 432                         break;
 433
 434                 default:
 435                         Debug( LDAP_DEBUG_FILTER,
 436                                 "  unknown substring choice=%ld\n",
 437                                 (long) tag, 0, 0 );
 438
 439                         rc = LDAP_PROTOCOL_ERROR;
 440                         goto return_error;
 441                 }
 442
 443                 /* validate/normalize using equality matching rule validator! */
 444                 rc = asserted_value_validate_normalize(
 445                         ssa.sa_desc, ssa.sa_desc->ad_type->sat_equality,
 446                         usage, &value, &nvalue, text, op->o_tmpmemctx );
 447                 if( rc != LDAP_SUCCESS ) goto return_error;
 448
 449                 switch ( tag ) {
 450                 case LDAP_SUBSTRING_INITIAL:
 451                         Debug( LDAP_DEBUG_FILTER, "  INITIAL\n", 0, 0, 0 );
 452                         ssa.sa_initial = nvalue;
 453                         break;
 454
 455                 case LDAP_SUBSTRING_ANY:
 456                         Debug( LDAP_DEBUG_FILTER, "  ANY\n", 0, 0, 0 );
 457                         ber_bvarray_add_x( &ssa.sa_any, &nvalue, op->o_tmpmemctx );
 458                         break;
 459
 460                 case LDAP_SUBSTRING_FINAL:
 461                         Debug( LDAP_DEBUG_FILTER, "  FINAL\n", 0, 0, 0 );
 462                         ssa.sa_final = nvalue;
 463                         break;
 464
 465                 default:
 466                         assert( 0 );
 467                         slap_sl_free( nvalue.bv_val, op->o_tmpmemctx );
 468                         rc = LDAP_PROTOCOL_ERROR;
 469
 470 return_error:
 471                         Debug( LDAP_DEBUG_FILTER, "  error=%ld\n",
 472                                 (long) rc, 0, 0 );
 473                         slap_sl_free( ssa.sa_initial.bv_val, op->o_tmpmemctx );
 474                         ber_bvarray_free_x( ssa.sa_any, op->o_tmpmemctx );
 475                         if ( ssa.sa_desc->ad_flags & SLAP_DESC_TEMPORARY )
 476                                 op->o_tmpfree( ssa.sa_desc, op->o_tmpmemctx );
 477                         slap_sl_free( ssa.sa_final.bv_val, op->o_tmpmemctx );
 478                         return rc;
 479                 }
 480
 481                 rc = LDAP_SUCCESS;
 482         }
 483
 484         if( rc == LDAP_SUCCESS ) {
 485                 f->f_sub = op->o_tmpalloc( sizeof( ssa ), op->o_tmpmemctx );
 486                 *f->f_sub = ssa;
 487         }
 488
 489         Debug( LDAP_DEBUG_FILTER, "end get_ssa\n", 0, 0, 0 );
 490         return rc /* LDAP_SUCCESS */ ;
 491 }
 492
 493 void
 494 filter_free_x( Operation *op, Filter *f )
 495 {
 496         Filter  *p, *next;
 497
 498         if ( f == NULL ) {
 499                 return;
 500         }
 501
 502         f->f_choice &= SLAPD_FILTER_MASK;
 503
 504         switch ( f->f_choice ) {
 505         case LDAP_FILTER_PRESENT:
 506                 break;
 507
 508         case LDAP_FILTER_EQUALITY:
 509         case LDAP_FILTER_GE:
 510         case LDAP_FILTER_LE:
 511         case LDAP_FILTER_APPROX:
 512                 ava_free( op, f->f_ava, 1 );
 513                 break;
 514
 515         case LDAP_FILTER_SUBSTRINGS:
 516                 if ( f->f_sub_initial.bv_val != NULL ) {
 517                         op->o_tmpfree( f->f_sub_initial.bv_val, op->o_tmpmemctx );
 518                 }
 519                 ber_bvarray_free_x( f->f_sub_any, op->o_tmpmemctx );
 520                 if ( f->f_sub_final.bv_val != NULL ) {
 521                         op->o_tmpfree( f->f_sub_final.bv_val, op->o_tmpmemctx );
 522                 }
 523                 if ( f->f_sub->sa_desc->ad_flags & SLAP_DESC_TEMPORARY )
 524                         op->o_tmpfree( f->f_sub->sa_desc, op->o_tmpmemctx );
 525                 op->o_tmpfree( f->f_sub, op->o_tmpmemctx );
 526                 break;
 527
 528         case LDAP_FILTER_AND:
 529         case LDAP_FILTER_OR:
 530         case LDAP_FILTER_NOT:
 531                 for ( p = f->f_list; p != NULL; p = next ) {
 532                         next = p->f_next;
 533                         filter_free_x( op, p );
 534                 }
 535                 break;
 536
 537         case LDAP_FILTER_EXT:
 538                 mra_free( op, f->f_mra, 1 );
 539                 break;
 540
 541         case SLAPD_FILTER_COMPUTED:
 542                 break;
 543
 544         default:
 545                 Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
 546                         f->f_choice, 0, 0 );
 547                 break;
 548         }
 549
 550         op->o_tmpfree( f, op->o_tmpmemctx );
 551 }
 552
 553 void
 554 filter_free( Filter *f )
 555 {
 556         Operation op;
 557         Opheader ohdr;
 558
 559         op.o_hdr = &ohdr;
 560         op.o_tmpmemctx = slap_sl_context( f );
 561         op.o_tmpmfuncs = &slap_sl_mfuncs;
 562         filter_free_x( &op, f );
 563 }
 564
 565 void
 566 filter2bv_x( Operation *op, Filter *f, struct berval *fstr )
 567 {
 568         int             i;
 569         Filter          *p;
 570         struct berval   tmp, value;
 571         static struct berval
 572                         ber_bvfalse = BER_BVC( "(?=false)" ),
 573                         ber_bvtrue = BER_BVC( "(?=true)" ),
 574                         ber_bvundefined = BER_BVC( "(?=undefined)" ),
 575                         ber_bverror = BER_BVC( "(?=error)" ),
 576                         ber_bvunknown = BER_BVC( "(?=unknown)" ),
 577                         ber_bvnone = BER_BVC( "(?=none)" );
 578         ber_len_t       len;
 579         ber_tag_t       choice;
 580         int undef;
 581         char *sign;
 582
 583         if ( f == NULL ) {
 584                 ber_dupbv_x( fstr, &ber_bvnone, op->o_tmpmemctx );
 585                 return;
 586         }
 587
 588         undef = f->f_choice & SLAPD_FILTER_UNDEFINED;
 589         choice = f->f_choice & SLAPD_FILTER_MASK;
 590
 591         switch ( choice ) {
 592         case LDAP_FILTER_EQUALITY:
 593                 fstr->bv_len = STRLENOF("(=)");
 594                 sign = "=";
 595                 goto simple;
 596         case LDAP_FILTER_GE:
 597                 fstr->bv_len = STRLENOF("(>=)");
 598                 sign = ">=";
 599                 goto simple;
 600         case LDAP_FILTER_LE:
 601                 fstr->bv_len = STRLENOF("(<=)");
 602                 sign = "<=";
 603                 goto simple;
 604         case LDAP_FILTER_APPROX:
 605                 fstr->bv_len = STRLENOF("(~=)");
 606                 sign = "~=";
 607
 608 simple:
 609                 value = f->f_av_value;
 610                 if ( f->f_av_desc->ad_type->sat_equality->smr_usage & SLAP_MR_MUTATION_NORMALIZER ) {
 611                         f->f_av_desc->ad_type->sat_equality->smr_normalize(
 612                                 (SLAP_MR_DENORMALIZE|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX),
 613                                 NULL, NULL, &f->f_av_value, &value, op->o_tmpmemctx );
 614                 }
 615
 616                 filter_escape_value_x( &value, &tmp, op->o_tmpmemctx );
 617                 /* NOTE: tmp can legitimately be NULL (meaning empty)
 618                  * since in a Filter values in AVAs are supposed
 619                  * to have been normalized, meaning that an empty value
 620                  * is legal for that attribute's syntax */
 621
 622                 fstr->bv_len += f->f_av_desc->ad_cname.bv_len + tmp.bv_len;
 623                 if ( undef )
 624                         fstr->bv_len++;
 625                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 626
 627                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s)",
 628                         undef ? "?" : "",
 629                         f->f_av_desc->ad_cname.bv_val, sign,
 630                         tmp.bv_len ? tmp.bv_val : "" );
 631
 632                 if ( value.bv_val != f->f_av_value.bv_val ) {
 633                         ber_memfree_x( value.bv_val, op->o_tmpmemctx );
 634                 }
 635
 636                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 637                 break;
 638
 639         case LDAP_FILTER_SUBSTRINGS:
 640                 fstr->bv_len = f->f_sub_desc->ad_cname.bv_len +
 641                         STRLENOF("(=*)");
 642                 if ( undef )
 643                         fstr->bv_len++;
 644                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 645
 646                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s=*)",
 647                         undef ? "?" : "",
 648                         f->f_sub_desc->ad_cname.bv_val );
 649
 650                 if ( f->f_sub_initial.bv_val != NULL ) {
 651                         ber_len_t tmplen;
 652
 653                         len = fstr->bv_len;
 654
 655                         filter_escape_value_x( &f->f_sub_initial, &tmp, op->o_tmpmemctx );
 656                         tmplen = tmp.bv_len;
 657
 658                         fstr->bv_len += tmplen;
 659                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
 660                                 fstr->bv_len + 1, op->o_tmpmemctx );
 661
 662                         snprintf( &fstr->bv_val[len - 2],
 663                                 tmplen + STRLENOF( /*(*/ "*)" ) + 1,
 664                                 /* "(attr=" */ "%s*)",
 665                                 tmp.bv_len ? tmp.bv_val : "");
 666
 667                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 668                 }
 669
 670                 if ( f->f_sub_any != NULL ) {
 671                         for ( i = 0; f->f_sub_any[i].bv_val != NULL; i++ ) {
 672                                 ber_len_t tmplen;
 673
 674                                 len = fstr->bv_len;
 675                                 filter_escape_value_x( &f->f_sub_any[i],
 676                                         &tmp, op->o_tmpmemctx );
 677                                 tmplen = tmp.bv_len;
 678
 679                                 fstr->bv_len += tmplen + STRLENOF( /*(*/ ")" );
 680                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
 681                                         fstr->bv_len + 1, op->o_tmpmemctx );
 682
 683                                 snprintf( &fstr->bv_val[len - 1],
 684                                         tmplen + STRLENOF( /*(*/ "*)" ) + 1,
 685                                         /* "(attr=[init]*[any*]" */ "%s*)",
 686                                         tmp.bv_len ? tmp.bv_val : "");
 687                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 688                         }
 689                 }
 690
 691                 if ( f->f_sub_final.bv_val != NULL ) {
 692                         ber_len_t tmplen;
 693
 694                         len = fstr->bv_len;
 695
 696                         filter_escape_value_x( &f->f_sub_final, &tmp, op->o_tmpmemctx );
 697                         tmplen = tmp.bv_len;
 698
 699                         fstr->bv_len += tmplen;
 700                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
 701                                 fstr->bv_len + 1, op->o_tmpmemctx );
 702
 703                         snprintf( &fstr->bv_val[len - 1],
 704                                 tmplen + STRLENOF( /*(*/ ")" ) + 1,
 705                                 /* "(attr=[init*][any*]" */ "%s)",
 706                                 tmp.bv_len ? tmp.bv_val : "");
 707
 708                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 709                 }
 710
 711                 break;
 712
 713         case LDAP_FILTER_PRESENT:
 714                 fstr->bv_len = f->f_desc->ad_cname.bv_len +
 715                         STRLENOF("(=*)");
 716                 if ( undef )
 717                         fstr->bv_len++;
 718
 719                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 720
 721                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s=*)",
 722                         undef ? "?" : "",
 723                         f->f_desc->ad_cname.bv_val );
 724                 break;
 725
 726         case LDAP_FILTER_AND:
 727         case LDAP_FILTER_OR:
 728         case LDAP_FILTER_NOT:
 729                 fstr->bv_len = STRLENOF("(%)");
 730                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 731
 732                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
 733                         f->f_choice == LDAP_FILTER_AND ? '&' :
 734                         f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 735
 736                 for ( p = f->f_list; p != NULL; p = p->f_next ) {
 737                         len = fstr->bv_len;
 738
 739                         filter2bv_x( op, p, &tmp );
 740
 741                         fstr->bv_len += tmp.bv_len;
 742                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 743                                 op->o_tmpmemctx );
 744
 745                         snprintf( &fstr->bv_val[len-1],
 746                                 tmp.bv_len + STRLENOF( /*(*/ ")" ) + 1,
 747                                 /*"("*/ "%s)", tmp.bv_val );
 748
 749                         op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
 750                 }
 751
 752                 break;
 753
 754         case LDAP_FILTER_EXT: {
 755                 struct berval ad;
 756
 757                 filter_escape_value_x( &f->f_mr_value, &tmp, op->o_tmpmemctx );
 758                 /* NOTE: tmp can legitimately be NULL (meaning empty)
 759                  * since in a Filter values in MRAs are supposed
 760                  * to have been normalized, meaning that an empty value
 761                  * is legal for that attribute's syntax */
 762
 763                 if ( f->f_mr_desc ) {
 764                         ad = f->f_mr_desc->ad_cname;
 765                 } else {
 766                         ad.bv_len = 0;
 767                         ad.bv_val = "";
 768                 }
 769
 770                 fstr->bv_len = ad.bv_len +
 771                         ( f->f_mr_dnattrs ? STRLENOF(":dn") : 0 ) +
 772                         ( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len+1 : 0 ) +
 773                         tmp.bv_len + STRLENOF("(:=)");
 774                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 775
 776                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s%s:=%s)",
 777                         undef ? "?" : "",
 778                         ad.bv_val,
 779                         f->f_mr_dnattrs ? ":dn" : "",
 780                         f->f_mr_rule_text.bv_len ? ":" : "",
 781                         f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_val : "",
 782                         tmp.bv_len ? tmp.bv_val : "" );
 783                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 784                 } break;
 785
 786         case SLAPD_FILTER_COMPUTED:
 787                 switch ( f->f_result ) {
 788                 case LDAP_COMPARE_FALSE:
 789                         tmp = ber_bvfalse;
 790                         break;
 791
 792                 case LDAP_COMPARE_TRUE:
 793                         tmp = ber_bvtrue;
 794                         break;
 795
 796                 case SLAPD_COMPARE_UNDEFINED:
 797                         tmp = ber_bvundefined;
 798                         break;
 799
 800                 default:
 801                         tmp = ber_bverror;
 802                         break;
 803                 }
 804
 805                 ber_dupbv_x( fstr, &tmp, op->o_tmpmemctx );
 806                 break;
 807
 808         default:
 809                 ber_dupbv_x( fstr, &ber_bvunknown, op->o_tmpmemctx );
 810                 break;
 811         }
 812 }
 813
 814 void
 815 filter2bv( Filter *f, struct berval *fstr )
 816 {
 817         Operation op;
 818         Opheader ohdr;
 819
 820         op.o_hdr = &ohdr;
 821         op.o_tmpmemctx = NULL;
 822         op.o_tmpmfuncs = &ch_mfuncs;
 823
 824         filter2bv_x( &op, f, fstr );
 825 }
 826
 827 Filter *
 828 filter_dup( Filter *f, void *memctx )
 829 {
 830         BerMemoryFunctions *mf = &slap_sl_mfuncs;
 831         Filter *n;
 832
 833         if ( !f )
 834                 return NULL;
 835
 836         n = mf->bmf_malloc( sizeof(Filter), memctx );
 837         n->f_choice = f->f_choice;
 838         n->f_next = NULL;
 839
 840         switch( f->f_choice & SLAPD_FILTER_MASK ) {
 841         case SLAPD_FILTER_COMPUTED:
 842                 n->f_result = f->f_result;
 843                 break;
 844         case LDAP_FILTER_PRESENT:
 845                 if ( f->f_desc->ad_flags & SLAP_DESC_TEMPORARY )
 846                         n->f_desc = slap_bv2tmp_ad( &f->f_desc->ad_cname, memctx );
 847                 else
 848                         n->f_desc = f->f_desc;
 849                 break;
 850         case LDAP_FILTER_EQUALITY:
 851         case LDAP_FILTER_GE:
 852         case LDAP_FILTER_LE:
 853         case LDAP_FILTER_APPROX:
 854                 /* Should this be ava_dup() ? */
 855                 n->f_ava = mf->bmf_calloc( 1, sizeof(AttributeAssertion), memctx );
 856                 *n->f_ava = *f->f_ava;
 857                 if ( f->f_av_desc->ad_flags & SLAP_DESC_TEMPORARY )
 858                         n->f_av_desc = slap_bv2tmp_ad( &f->f_av_desc->ad_cname, memctx );
 859                 ber_dupbv_x( &n->f_av_value, &f->f_av_value, memctx );
 860                 break;
 861         case LDAP_FILTER_SUBSTRINGS:
 862                 n->f_sub = mf->bmf_calloc( 1, sizeof(SubstringsAssertion), memctx );
 863                 if ( f->f_sub_desc->ad_flags & SLAP_DESC_TEMPORARY )
 864                         n->f_sub_desc = slap_bv2tmp_ad( &f->f_sub_desc->ad_cname, memctx );
 865                 else
 866                         n->f_sub_desc = f->f_sub_desc;
 867                 if ( !BER_BVISNULL( &f->f_sub_initial ))
 868                         ber_dupbv_x( &n->f_sub_initial, &f->f_sub_initial, memctx );
 869                 if ( f->f_sub_any ) {
 870                         int i;
 871                         for ( i = 0; !BER_BVISNULL( &f->f_sub_any[i] ); i++ );
 872                         n->f_sub_any = mf->bmf_malloc(( i+1 )*sizeof( struct berval ),
 873                                 memctx );
 874                         for ( i = 0; !BER_BVISNULL( &f->f_sub_any[i] ); i++ ) {
 875                                 ber_dupbv_x( &n->f_sub_any[i], &f->f_sub_any[i], memctx );
 876                         }
 877                         BER_BVZERO( &n->f_sub_any[i] );
 878                 }
 879                 if ( !BER_BVISNULL( &f->f_sub_final ))
 880                         ber_dupbv_x( &n->f_sub_final, &f->f_sub_final, memctx );
 881                 break;
 882         case LDAP_FILTER_EXT: {
 883                 /* Should this be mra_dup() ? */
 884                 ber_len_t length;
 885                 length = sizeof(MatchingRuleAssertion);
 886                 if ( !BER_BVISNULL( &f->f_mr_rule_text ))
 887                         length += f->f_mr_rule_text.bv_len + 1;
 888                 n->f_mra = mf->bmf_calloc( 1, length, memctx );
 889                 *n->f_mra = *f->f_mra;
 890                 if ( f->f_mr_desc && ( f->f_sub_desc->ad_flags & SLAP_DESC_TEMPORARY ))
 891                         n->f_mr_desc = slap_bv2tmp_ad( &f->f_mr_desc->ad_cname, memctx );
 892                 ber_dupbv_x( &n->f_mr_value, &f->f_mr_value, memctx );
 893                 if ( !BER_BVISNULL( &f->f_mr_rule_text )) {
 894                         n->f_mr_rule_text.bv_val = (char *)(n->f_mra+1);
 895                         AC_MEMCPY(n->f_mr_rule_text.bv_val,
 896                                 f->f_mr_rule_text.bv_val, f->f_mr_rule_text.bv_len );
 897                 }
 898                 } break;
 899         case LDAP_FILTER_AND:
 900         case LDAP_FILTER_OR:
 901         case LDAP_FILTER_NOT: {
 902                 Filter **p;
 903                 for ( p = &n->f_list, f = f->f_list; f; f = f->f_next ) {
 904                         *p = filter_dup( f, memctx );
 905                         p = &(*p)->f_next;
 906                 }
 907                 } break;
 908         }
 909         return n;
 910 }
 911
 912 static int
 913 get_simple_vrFilter(
 914         Operation *op,
 915         BerElement *ber,
 916         ValuesReturnFilter **filt,
 917         const char **text )
 918 {
 919         ber_tag_t       tag;
 920         ber_len_t       len;
 921         int             err;
 922         ValuesReturnFilter vrf;
 923
 924         Debug( LDAP_DEBUG_FILTER, "begin get_simple_vrFilter\n", 0, 0, 0 );
 925
 926         tag = ber_peek_tag( ber, &len );
 927
 928         if( tag == LBER_ERROR ) {
 929                 *text = "error decoding filter";
 930                 return SLAPD_DISCONNECT;
 931         }
 932
 933         vrf.vrf_next = NULL;
 934
 935         err = LDAP_SUCCESS;
 936         vrf.vrf_choice = tag;
 937
 938         switch ( vrf.vrf_choice ) {
 939         case LDAP_FILTER_EQUALITY:
 940                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 941                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_EQUALITY, text );
 942                 if ( err != LDAP_SUCCESS ) {
 943                         break;
 944                 }
 945
 946                 assert( vrf.vrf_ava != NULL );
 947                 break;
 948
 949         case LDAP_FILTER_SUBSTRINGS:
 950                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 951                 err = get_ssa( op, ber, (Filter *)&vrf, text );
 952                 break;
 953
 954         case LDAP_FILTER_GE:
 955                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 956                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_ORDERING, text );
 957                 if ( err != LDAP_SUCCESS ) {
 958                         break;
 959                 }
 960                 break;
 961
 962         case LDAP_FILTER_LE:
 963                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 964                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_ORDERING, text );
 965                 if ( err != LDAP_SUCCESS ) {
 966                         break;
 967                 }
 968                 break;
 969
 970         case LDAP_FILTER_PRESENT: {
 971                 struct berval type;
 972
 973                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 974                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
 975                         err = SLAPD_DISCONNECT;
 976                         *text = "error decoding filter";
 977                         break;
 978                 }
 979
 980                 vrf.vrf_desc = NULL;
 981                 err = slap_bv2ad( &type, &vrf.vrf_desc, text );
 982
 983                 if( err != LDAP_SUCCESS ) {
 984                         vrf.vrf_choice |= SLAPD_FILTER_UNDEFINED;
 985                         err = slap_bv2undef_ad( &type, &vrf.vrf_desc, text,
 986                                 SLAP_AD_PROXIED);
 987
 988                         if( err != LDAP_SUCCESS ) {
 989                                 /* unrecognized attribute description or other error */
 990                                 Debug( LDAP_DEBUG_ANY,
 991                                         "get_simple_vrFilter: conn %lu unknown "
 992                                         "attribute type=%s (%d)\n",
 993                                         op->o_connid, type.bv_val, err );
 994
 995                                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
 996                                 vrf.vrf_result = LDAP_COMPARE_FALSE;
 997                                 err = LDAP_SUCCESS;
 998                                 break;
 999                         }
1000                 }
1001                 } break;
1002
1003         case LDAP_FILTER_APPROX:
1004                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
1005                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_EQUALITY_APPROX, text );
1006                 if ( err != LDAP_SUCCESS ) {
1007                         break;
1008                 }
1009                 break;
1010
1011         case LDAP_FILTER_EXT:
1012                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
1013
1014                 err = get_mra( op, ber, (Filter *)&vrf, text );
1015                 if ( err != LDAP_SUCCESS ) {
1016                         break;
1017                 }
1018
1019                 assert( vrf.vrf_mra != NULL );
1020                 break;
1021
1022         default:
1023                 (void) ber_scanf( ber, "x" ); /* skip the element */
1024                 Debug( LDAP_DEBUG_ANY, "get_simple_vrFilter: unknown filter type=%lu\n",
1025                         vrf.vrf_choice, 0, 0 );
1026                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1027                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
1028                 break;
1029         }
1030
1031         if ( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
1032                 /* ignore error */
1033                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1034                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
1035                 err = LDAP_SUCCESS;
1036         }
1037
1038         if ( err == LDAP_SUCCESS ) {
1039                 *filt = op->o_tmpalloc( sizeof vrf, op->o_tmpmemctx );
1040                 **filt = vrf;
1041         }
1042
1043         Debug( LDAP_DEBUG_FILTER, "end get_simple_vrFilter %d\n", err, 0, 0 );
1044
1045         return err;
1046 }
1047
1048 int
1049 get_vrFilter( Operation *op, BerElement *ber,
1050         ValuesReturnFilter **vrf,
1051         const char **text )
1052 {
1053         /*
1054          * A ValuesReturnFilter looks like this:
1055          *
1056          *      ValuesReturnFilter ::= SEQUENCE OF SimpleFilterItem
1057          *      SimpleFilterItem ::= CHOICE {
1058          *              equalityMatch   [3]     AttributeValueAssertion,
1059          *              substrings      [4]     SubstringFilter,
1060          *              greaterOrEqual  [5]     AttributeValueAssertion,
1061          *              lessOrEqual     [6]     AttributeValueAssertion,
1062          *              present         [7]     AttributeType,
1063          *              approxMatch     [8]     AttributeValueAssertion,
1064          *              extensibleMatch [9]     SimpleMatchingAssertion -- LDAPv3
1065          *      }
1066          *
1067          *      SubstringFilter ::= SEQUENCE {
1068          *              type               AttributeType,
1069          *              SEQUENCE OF CHOICE {
1070          *                      initial          [0] IA5String,
1071          *                      any              [1] IA5String,
1072          *                      final            [2] IA5String
1073          *              }
1074          *      }
1075          *
1076          *      SimpleMatchingAssertion ::= SEQUENCE {  -- LDAPv3
1077          *              matchingRule    [1] MatchingRuleId OPTIONAL,
1078          *              type            [2] AttributeDescription OPTIONAL,
1079          *              matchValue      [3] AssertionValue }
1080          */
1081
1082         ValuesReturnFilter **n;
1083         ber_tag_t       tag;
1084         ber_len_t       len;
1085         char            *last;
1086
1087         Debug( LDAP_DEBUG_FILTER, "begin get_vrFilter\n", 0, 0, 0 );
1088
1089         tag = ber_peek_tag( ber, &len );
1090
1091         if( tag == LBER_ERROR ) {
1092                 *text = "error decoding vrFilter";
1093                 return SLAPD_DISCONNECT;
1094         }
1095
1096         if( tag != LBER_SEQUENCE ) {
1097                 *text = "error decoding vrFilter, expect SEQUENCE tag";
1098                 return SLAPD_DISCONNECT;
1099         }
1100
1101         n = vrf;
1102         for ( tag = ber_first_element( ber, &len, &last );
1103                 tag != LBER_DEFAULT;
1104                 tag = ber_next_element( ber, &len, last ) )
1105         {
1106                 int err = get_simple_vrFilter( op, ber, n, text );
1107
1108                 if ( err != LDAP_SUCCESS ) return( err );
1109
1110                 n = &(*n)->vrf_next;
1111         }
1112         *n = NULL;
1113
1114         Debug( LDAP_DEBUG_FILTER, "end get_vrFilter\n", 0, 0, 0 );
1115         return( LDAP_SUCCESS );
1116 }
1117
1118 void
1119 vrFilter_free( Operation *op, ValuesReturnFilter *vrf )
1120 {
1121         ValuesReturnFilter      *p, *next;
1122
1123         if ( vrf == NULL ) {
1124                 return;
1125         }
1126
1127         for ( p = vrf; p != NULL; p = next ) {
1128                 next = p->vrf_next;
1129
1130                 switch ( vrf->vrf_choice & SLAPD_FILTER_MASK ) {
1131                 case LDAP_FILTER_PRESENT:
1132                         break;
1133
1134                 case LDAP_FILTER_EQUALITY:
1135                 case LDAP_FILTER_GE:
1136                 case LDAP_FILTER_LE:
1137                 case LDAP_FILTER_APPROX:
1138                         ava_free( op, vrf->vrf_ava, 1 );
1139                         break;
1140
1141                 case LDAP_FILTER_SUBSTRINGS:
1142                         if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1143                                 op->o_tmpfree( vrf->vrf_sub_initial.bv_val, op->o_tmpmemctx );
1144                         }
1145                         ber_bvarray_free_x( vrf->vrf_sub_any, op->o_tmpmemctx );
1146                         if ( vrf->vrf_sub_final.bv_val != NULL ) {
1147                                 op->o_tmpfree( vrf->vrf_sub_final.bv_val, op->o_tmpmemctx );
1148                         }
1149                         op->o_tmpfree( vrf->vrf_sub, op->o_tmpmemctx );
1150                         break;
1151
1152                 case LDAP_FILTER_EXT:
1153                         mra_free( op, vrf->vrf_mra, 1 );
1154                         break;
1155
1156                 case SLAPD_FILTER_COMPUTED:
1157                         break;
1158
1159                 default:
1160                         Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
1161                                 vrf->vrf_choice, 0, 0 );
1162                         break;
1163                 }
1164
1165                 op->o_tmpfree( vrf, op->o_tmpmemctx );
1166         }
1167 }
1168
1169 void
1170 vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1171 {
1172         ValuesReturnFilter      *p;
1173         struct berval tmp;
1174         ber_len_t len;
1175
1176         if ( vrf == NULL ) {
1177                 ber_str2bv_x( "No filter!", STRLENOF("No filter!"),
1178                         1, fstr, op->o_tmpmemctx );
1179                 return;
1180         }
1181
1182         fstr->bv_len = STRLENOF("()");
1183         fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1184
1185         snprintf( fstr->bv_val, fstr->bv_len + 1, "()");
1186
1187         for ( p = vrf; p != NULL; p = p->vrf_next ) {
1188                 len = fstr->bv_len;
1189
1190                 simple_vrFilter2bv( op, p, &tmp );
1191
1192                 fstr->bv_len += tmp.bv_len;
1193                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1194                         op->o_tmpmemctx );
1195
1196                 snprintf( &fstr->bv_val[len-1], tmp.bv_len + 2,
1197                         /*"("*/ "%s)", tmp.bv_val );
1198
1199                 op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
1200         }
1201 }
1202
1203 static void
1204 simple_vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1205 {
1206         struct berval tmp;
1207         ber_len_t len;
1208         int undef;
1209
1210         if ( vrf == NULL ) {
1211                 ber_str2bv_x( "No filter!", STRLENOF("No filter!"), 1, fstr,
1212                         op->o_tmpmemctx );
1213                 return;
1214         }
1215         undef = vrf->vrf_choice & SLAPD_FILTER_UNDEFINED;
1216
1217         switch ( vrf->vrf_choice & SLAPD_FILTER_MASK ) {
1218         case LDAP_FILTER_EQUALITY:
1219                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1220
1221                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1222                         tmp.bv_len + STRLENOF("(=)");
1223                 if ( undef ) fstr->bv_len++;
1224                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1225
1226                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
1227                         vrf->vrf_av_desc->ad_cname.bv_val,
1228                         tmp.bv_val );
1229
1230                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1231                 break;
1232
1233         case LDAP_FILTER_GE:
1234                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1235
1236                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1237                         tmp.bv_len + STRLENOF("(>=)");
1238                 if ( undef ) fstr->bv_len++;
1239                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1240
1241                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
1242                         vrf->vrf_av_desc->ad_cname.bv_val,
1243                         tmp.bv_val );
1244
1245                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1246                 break;
1247
1248         case LDAP_FILTER_LE:
1249                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1250
1251                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1252                         tmp.bv_len + STRLENOF("(<=)");
1253                 if ( undef ) fstr->bv_len++;
1254                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1255
1256                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
1257                         vrf->vrf_av_desc->ad_cname.bv_val,
1258                         tmp.bv_val );
1259
1260                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1261                 break;
1262
1263         case LDAP_FILTER_APPROX:
1264                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1265
1266                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1267                         tmp.bv_len + STRLENOF("(~=)");
1268                 if ( undef ) fstr->bv_len++;
1269                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1270
1271                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
1272                         vrf->vrf_av_desc->ad_cname.bv_val,
1273                         tmp.bv_val );
1274                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1275                 break;
1276
1277         case LDAP_FILTER_SUBSTRINGS:
1278                 fstr->bv_len = vrf->vrf_sub_desc->ad_cname.bv_len +
1279                         STRLENOF("(=*)");
1280                 if ( undef ) fstr->bv_len++;
1281                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1282
1283                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1284                         vrf->vrf_sub_desc->ad_cname.bv_val );
1285
1286                 if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1287                         len = fstr->bv_len;
1288
1289                         filter_escape_value_x( &vrf->vrf_sub_initial, &tmp, op->o_tmpmemctx );
1290
1291                         fstr->bv_len += tmp.bv_len;
1292                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1293                                 op->o_tmpmemctx );
1294
1295                         snprintf( &fstr->bv_val[len-2], tmp.bv_len+3,
1296                                 /* "(attr=" */ "%s*)",
1297                                 tmp.bv_val );
1298
1299                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1300                 }
1301
1302                 if ( vrf->vrf_sub_any != NULL ) {
1303                         int i;
1304                         for ( i = 0; vrf->vrf_sub_any[i].bv_val != NULL; i++ ) {
1305                                 len = fstr->bv_len;
1306                                 filter_escape_value_x( &vrf->vrf_sub_any[i], &tmp,
1307                                         op->o_tmpmemctx );
1308
1309                                 fstr->bv_len += tmp.bv_len + 1;
1310                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
1311                                         fstr->bv_len + 1, op->o_tmpmemctx );
1312
1313                                 snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1314                                         /* "(attr=[init]*[any*]" */ "%s*)",
1315                                         tmp.bv_val );
1316                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1317                         }
1318                 }
1319
1320                 if ( vrf->vrf_sub_final.bv_val != NULL ) {
1321                         len = fstr->bv_len;
1322
1323                         filter_escape_value_x( &vrf->vrf_sub_final, &tmp, op->o_tmpmemctx );
1324
1325                         fstr->bv_len += tmp.bv_len;
1326                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1327                                 op->o_tmpmemctx );
1328
1329                         snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1330                                 /* "(attr=[init*][any*]" */ "%s)",
1331                                 tmp.bv_val );
1332
1333                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1334                 }
1335
1336                 break;
1337
1338         case LDAP_FILTER_PRESENT:
1339                 fstr->bv_len = vrf->vrf_desc->ad_cname.bv_len +
1340                         STRLENOF("(=*)");
1341                 if ( undef ) fstr->bv_len++;
1342                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1343
1344                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1345                         vrf->vrf_desc->ad_cname.bv_val );
1346                 break;
1347
1348         case LDAP_FILTER_EXT: {
1349                 struct berval ad;
1350                 filter_escape_value_x( &vrf->vrf_mr_value, &tmp, op->o_tmpmemctx );
1351
1352                 if ( vrf->vrf_mr_desc ) {
1353                         ad = vrf->vrf_mr_desc->ad_cname;
1354                 } else {
1355                         ad.bv_len = 0;
1356                         ad.bv_val = "";
1357                 }
1358
1359                 fstr->bv_len = ad.bv_len +
1360                         ( vrf->vrf_mr_dnattrs ? STRLENOF(":dn") : 0 ) +
1361                         ( vrf->vrf_mr_rule_text.bv_len
1362                                 ? vrf->vrf_mr_rule_text.bv_len+1 : 0 ) +
1363                         tmp.bv_len + STRLENOF("(:=)");
1364                 if ( undef ) fstr->bv_len++;
1365                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1366
1367                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
1368                         ad.bv_val,
1369                         vrf->vrf_mr_dnattrs ? ":dn" : "",
1370                         vrf->vrf_mr_rule_text.bv_len ? ":" : "",
1371                         vrf->vrf_mr_rule_text.bv_len ? vrf->vrf_mr_rule_text.bv_val : "",
1372                         tmp.bv_val );
1373
1374                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1375                 } break;
1376
1377         case SLAPD_FILTER_COMPUTED:
1378                 ber_str2bv_x(
1379                         vrf->vrf_result == LDAP_COMPARE_FALSE ? "(?=false)" :
1380                         vrf->vrf_result == LDAP_COMPARE_TRUE ? "(?=true)" :
1381                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1382                                 ? "(?=undefined)" : "(?=error)",
1383                         vrf->vrf_result == LDAP_COMPARE_FALSE ? STRLENOF("(?=false)") :
1384                         vrf->vrf_result == LDAP_COMPARE_TRUE ? STRLENOF("(?=true)") :
1385                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1386                                 ? STRLENOF("(?=undefined)") : STRLENOF("(?=error)"),
1387                         1, fstr, op->o_tmpmemctx );
1388                 break;
1389
1390         default:
1391                 ber_str2bv_x( "(?=unknown)", STRLENOF("(?=unknown)"),
1392                         1, fstr, op->o_tmpmemctx );
1393                 break;
1394         }
1395 }