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

   1 /* filter.c - routines for parsing and dealing with filters */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2004 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/socket.h>
  32 #include <ac/string.h>
  33
  34 #include "slap.h"
  35
  36 static int      get_filter_list(
  37         Operation *op,
  38         BerElement *ber,
  39         Filter **f,
  40         const char **text );
  41
  42 static int      get_ssa(
  43         Operation *op,
  44         BerElement *ber,
  45         SubstringsAssertion **s,
  46         const char **text );
  47
  48 static int filter_escape_value_x(
  49         struct berval *in,
  50         struct berval *out,
  51         void *ctx );
  52
  53 static void simple_vrFilter2bv(
  54         Operation *op,
  55         ValuesReturnFilter *f,
  56         struct berval *fstr );
  57
  58 static int      get_simple_vrFilter(
  59         Operation *op,
  60         BerElement *ber,
  61         ValuesReturnFilter **f,
  62         const char **text );
  63
  64 int
  65 get_filter(
  66         Operation *op,
  67         BerElement *ber,
  68         Filter **filt,
  69         const char **text )
  70 {
  71         ber_tag_t       tag;
  72         ber_len_t       len;
  73         int             err;
  74         Filter          f;
  75
  76         Debug( LDAP_DEBUG_FILTER, "begin get_filter\n", 0, 0, 0 );
  77         /*
  78          * A filter looks like this coming in:
  79          *      Filter ::= CHOICE {
  80          *              and             [0]     SET OF Filter,
  81          *              or              [1]     SET OF Filter,
  82          *              not             [2]     Filter,
  83          *              equalityMatch   [3]     AttributeValueAssertion,
  84          *              substrings      [4]     SubstringFilter,
  85          *              greaterOrEqual  [5]     AttributeValueAssertion,
  86          *              lessOrEqual     [6]     AttributeValueAssertion,
  87          *              present         [7]     AttributeType,,
  88          *              approxMatch     [8]     AttributeValueAssertion
  89          *              extensibleMatch [9]     MatchingRuleAssertion
  90          *      }
  91          *
  92          *      SubstringFilter ::= SEQUENCE {
  93          *              type               AttributeType,
  94          *              SEQUENCE OF CHOICE {
  95          *                      initial          [0] IA5String,
  96          *                      any              [1] IA5String,
  97          *                      final            [2] IA5String
  98          *              }
  99          *      }
 100          *
 101          *      MatchingRuleAssertion ::= SEQUENCE {
 102          *              matchingRule    [1] MatchingRuleId OPTIONAL,
 103          *              type            [2] AttributeDescription OPTIONAL,
 104          *              matchValue      [3] AssertionValue,
 105          *              dnAttributes    [4] BOOLEAN DEFAULT FALSE
 106          *      }
 107          *
 108          */
 109
 110         tag = ber_peek_tag( ber, &len );
 111
 112         if( tag == LBER_ERROR ) {
 113                 *text = "error decoding filter";
 114                 return SLAPD_DISCONNECT;
 115         }
 116
 117         err = LDAP_SUCCESS;
 118
 119         f.f_next = NULL;
 120         f.f_choice = tag;
 121
 122         switch ( f.f_choice ) {
 123         case LDAP_FILTER_EQUALITY:
 124                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 125                 err = get_ava( op, ber, &f.f_ava, SLAP_MR_EQUALITY, text );
 126                 if ( err != LDAP_SUCCESS ) {
 127                         break;
 128                 }
 129
 130                 assert( f.f_ava != NULL );
 131                 break;
 132
 133         case LDAP_FILTER_SUBSTRINGS:
 134                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 135                 err = get_ssa( op, ber, &f.f_sub, text );
 136                 if( err != LDAP_SUCCESS ) {
 137                         break;
 138                 }
 139                 assert( f.f_sub != NULL );
 140                 break;
 141
 142         case LDAP_FILTER_GE:
 143                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 144                 err = get_ava( op, ber, &f.f_ava, SLAP_MR_ORDERING, text );
 145                 if ( err != LDAP_SUCCESS ) {
 146                         break;
 147                 }
 148                 assert( f.f_ava != NULL );
 149                 break;
 150
 151         case LDAP_FILTER_LE:
 152                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 153                 err = get_ava( op, ber, &f.f_ava, SLAP_MR_ORDERING, text );
 154                 if ( err != LDAP_SUCCESS ) {
 155                         break;
 156                 }
 157                 assert( f.f_ava != NULL );
 158                 break;
 159
 160         case LDAP_FILTER_PRESENT: {
 161                 struct berval type;
 162
 163                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 164                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
 165                         err = SLAPD_DISCONNECT;
 166                         *text = "error decoding filter";
 167                         break;
 168                 }
 169
 170                 f.f_desc = NULL;
 171                 err = slap_bv2ad( &type, &f.f_desc, text );
 172
 173                 if( err != LDAP_SUCCESS ) {
 174                         /* unrecognized attribute description or other error */
 175                         Debug( LDAP_DEBUG_ANY,
 176                                 "get_filter: conn %d unknown attribute "
 177                                 "type=%s (%d)\n",
 178                                 op->o_connid, type.bv_val, err );
 179
 180                         f.f_choice = SLAPD_FILTER_COMPUTED;
 181                         f.f_result = LDAP_COMPARE_FALSE;
 182                         err = LDAP_SUCCESS;
 183                         *text = NULL;
 184                         break;
 185                 }
 186
 187                 assert( f.f_desc != NULL );
 188                 } break;
 189
 190         case LDAP_FILTER_APPROX:
 191                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
 192                 err = get_ava( op, ber, &f.f_ava, SLAP_MR_EQUALITY_APPROX, text );
 193                 if ( err != LDAP_SUCCESS ) {
 194                         break;
 195                 }
 196                 assert( f.f_ava != NULL );
 197                 break;
 198
 199         case LDAP_FILTER_AND:
 200                 Debug( LDAP_DEBUG_FILTER, "AND\n", 0, 0, 0 );
 201                 err = get_filter_list( op, ber, &f.f_and, text );
 202                 if ( err != LDAP_SUCCESS ) {
 203                         break;
 204                 }
 205                 if ( f.f_and == NULL ) {
 206                         f.f_choice = SLAPD_FILTER_COMPUTED;
 207                         f.f_result = LDAP_COMPARE_TRUE;
 208                 }
 209                 /* no assert - list could be empty */
 210                 break;
 211
 212         case LDAP_FILTER_OR:
 213                 Debug( LDAP_DEBUG_FILTER, "OR\n", 0, 0, 0 );
 214                 err = get_filter_list( op, ber, &f.f_or, text );
 215                 if ( err != LDAP_SUCCESS ) {
 216                         break;
 217                 }
 218                 if ( f.f_or == NULL ) {
 219                         f.f_choice = SLAPD_FILTER_COMPUTED;
 220                         f.f_result = LDAP_COMPARE_FALSE;
 221                 }
 222                 /* no assert - list could be empty */
 223                 break;
 224
 225         case LDAP_FILTER_NOT:
 226                 Debug( LDAP_DEBUG_FILTER, "NOT\n", 0, 0, 0 );
 227                 (void) ber_skip_tag( ber, &len );
 228                 err = get_filter( op, ber, &f.f_not, text );
 229                 if ( err != LDAP_SUCCESS ) {
 230                         break;
 231                 }
 232
 233                 assert( f.f_not != NULL );
 234                 if ( f.f_not->f_choice == SLAPD_FILTER_COMPUTED ) {
 235                         int fresult = f.f_not->f_result;
 236                         f.f_choice = SLAPD_FILTER_COMPUTED;
 237                         op->o_tmpfree( f.f_not, op->o_tmpmemctx );
 238                         f.f_not = NULL;
 239
 240                         switch( fresult ) {
 241                         case LDAP_COMPARE_TRUE:
 242                                 f.f_result = LDAP_COMPARE_FALSE;
 243                                 break;
 244                         case LDAP_COMPARE_FALSE:
 245                                 f.f_result = LDAP_COMPARE_TRUE;
 246                                 break;
 247                         default: ;
 248                                 /* (!Undefined) is Undefined */
 249                         }
 250                 }
 251                 break;
 252
 253         case LDAP_FILTER_EXT:
 254                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
 255
 256                 err = get_mra( op, ber, &f.f_mra, text );
 257                 if ( err != LDAP_SUCCESS ) {
 258                         break;
 259                 }
 260
 261                 assert( f.f_mra != NULL );
 262                 break;
 263
 264         default:
 265                 (void) ber_scanf( ber, "x" ); /* skip the element */
 266                 Debug( LDAP_DEBUG_ANY, "get_filter: unknown filter type=%lu\n",
 267                         f.f_choice, 0, 0 );
 268                 f.f_choice = SLAPD_FILTER_COMPUTED;
 269                 f.f_result = SLAPD_COMPARE_UNDEFINED;
 270                 break;
 271         }
 272
 273         if( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
 274                 /* ignore error */
 275                 *text = NULL;
 276                 f.f_choice = SLAPD_FILTER_COMPUTED;
 277                 f.f_result = SLAPD_COMPARE_UNDEFINED;
 278                 err = LDAP_SUCCESS;
 279         }
 280
 281         if ( err == LDAP_SUCCESS ) {
 282                 *filt = op->o_tmpalloc( sizeof(f), op->o_tmpmemctx );
 283                 **filt = f;
 284         }
 285
 286         Debug( LDAP_DEBUG_FILTER, "end get_filter %d\n", err, 0, 0 );
 287
 288         return( err );
 289 }
 290
 291 static int
 292 get_filter_list( Operation *op, BerElement *ber,
 293         Filter **f,
 294         const char **text )
 295 {
 296         Filter          **new;
 297         int             err;
 298         ber_tag_t       tag;
 299         ber_len_t       len;
 300         char            *last;
 301
 302         Debug( LDAP_DEBUG_FILTER, "begin get_filter_list\n", 0, 0, 0 );
 303         new = f;
 304         for ( tag = ber_first_element( ber, &len, &last );
 305                 tag != LBER_DEFAULT;
 306                 tag = ber_next_element( ber, &len, last ) )
 307         {
 308                 err = get_filter( op, ber, new, text );
 309                 if ( err != LDAP_SUCCESS )
 310                         return( err );
 311                 new = &(*new)->f_next;
 312         }
 313         *new = NULL;
 314
 315         Debug( LDAP_DEBUG_FILTER, "end get_filter_list\n", 0, 0, 0 );
 316         return( LDAP_SUCCESS );
 317 }
 318
 319 static int
 320 get_ssa(
 321         Operation *op,
 322         BerElement      *ber,
 323         SubstringsAssertion     **out,
 324         const char      **text )
 325 {
 326         ber_tag_t       tag;
 327         ber_len_t       len;
 328         ber_tag_t       rc;
 329         struct berval desc, value, nvalue;
 330         char            *last;
 331         SubstringsAssertion ssa;
 332
 333         *text = "error decoding filter";
 334         *out = NULL;
 335
 336         Debug( LDAP_DEBUG_FILTER, "begin get_ssa\n", 0, 0, 0 );
 337         if ( ber_scanf( ber, "{m" /*}*/, &desc ) == LBER_ERROR ) {
 338                 return SLAPD_DISCONNECT;
 339         }
 340
 341         *text = NULL;
 342
 343         ssa.sa_desc = NULL;
 344         ssa.sa_initial.bv_val = NULL;
 345         ssa.sa_any = NULL;
 346         ssa.sa_final.bv_val = NULL;
 347
 348         rc = slap_bv2ad( &desc, &ssa.sa_desc, text );
 349
 350         if( rc != LDAP_SUCCESS ) {
 351                 Debug( LDAP_DEBUG_ANY,
 352                         "get_ssa: conn %d unknown attribute type=%s (%d)\n",
 353                         op->o_connid, desc.bv_val, rc );
 354
 355                 /* skip over the rest of this filter */
 356                 for ( tag = ber_first_element( ber, &len, &last );
 357                         tag != LBER_DEFAULT;
 358                         tag = ber_next_element( ber, &len, last ) ) {
 359                         ber_scanf( ber, "x" );
 360                 }
 361                 return rc;
 362         }
 363
 364         rc = LDAP_PROTOCOL_ERROR;
 365
 366         for ( tag = ber_first_element( ber, &len, &last );
 367                 tag != LBER_DEFAULT;
 368                 tag = ber_next_element( ber, &len, last ) )
 369         {
 370                 unsigned usage;
 371
 372                 rc = ber_scanf( ber, "m", &value );
 373                 if ( rc == LBER_ERROR ) {
 374                         rc = SLAPD_DISCONNECT;
 375                         goto return_error;
 376                 }
 377
 378                 if ( value.bv_val == NULL || value.bv_len == 0 ) {
 379                         rc = LDAP_INVALID_SYNTAX;
 380                         goto return_error;
 381                 }
 382
 383                 switch ( tag ) {
 384                 case LDAP_SUBSTRING_INITIAL:
 385                         usage = SLAP_MR_SUBSTR_INITIAL;
 386                         break;
 387
 388                 case LDAP_SUBSTRING_ANY:
 389                         usage = SLAP_MR_SUBSTR_ANY;
 390                         break;
 391
 392                 case LDAP_SUBSTRING_FINAL:
 393                         usage = SLAP_MR_SUBSTR_FINAL;
 394                         break;
 395
 396                 default:
 397                         rc = LDAP_PROTOCOL_ERROR;
 398
 399                         Debug( LDAP_DEBUG_FILTER,
 400                                 "  unknown substring choice=%ld\n",
 401                                 (long) tag, 0, 0 );
 402
 403                         goto return_error;
 404                 }
 405
 406                 /* validate/normalize using equality matching rule validator! */
 407                 rc = asserted_value_validate_normalize(
 408                         ssa.sa_desc, ssa.sa_desc->ad_type->sat_equality,
 409                         usage, &value, &nvalue, text, op->o_tmpmemctx );
 410
 411                 if( rc != LDAP_SUCCESS ) {
 412                         goto return_error;
 413                 }
 414
 415                 rc = LDAP_PROTOCOL_ERROR;
 416
 417                 switch ( tag ) {
 418                 case LDAP_SUBSTRING_INITIAL:
 419                         Debug( LDAP_DEBUG_FILTER, "  INITIAL\n", 0, 0, 0 );
 420
 421                         if ( ssa.sa_initial.bv_val != NULL
 422                                 || ssa.sa_any != NULL
 423                                 || ssa.sa_final.bv_val != NULL )
 424                         {
 425                                 slap_sl_free( nvalue.bv_val, op->o_tmpmemctx );
 426                                 goto return_error;
 427                         }
 428
 429                         ssa.sa_initial = nvalue;
 430                         break;
 431
 432                 case LDAP_SUBSTRING_ANY:
 433                         Debug( LDAP_DEBUG_FILTER, "  ANY\n", 0, 0, 0 );
 434
 435                         if ( ssa.sa_final.bv_val != NULL ) {
 436                                 slap_sl_free( nvalue.bv_val, op->o_tmpmemctx );
 437                                 goto return_error;
 438                         }
 439
 440                         ber_bvarray_add_x( &ssa.sa_any, &nvalue, op->o_tmpmemctx );
 441                         break;
 442
 443                 case LDAP_SUBSTRING_FINAL:
 444                         Debug( LDAP_DEBUG_FILTER, "  FINAL\n", 0, 0, 0 );
 445
 446                         if ( ssa.sa_final.bv_val != NULL ) {
 447                                 slap_sl_free( nvalue.bv_val, op->o_tmpmemctx );
 448                                 goto return_error;
 449                         }
 450
 451                         ssa.sa_final = nvalue;
 452                         break;
 453
 454                 default:
 455                         Debug( LDAP_DEBUG_FILTER,
 456                                 "  unknown substring type=%ld\n",
 457                                 (long) tag, 0, 0 );
 458
 459                         assert( 0 );
 460                         slap_sl_free( nvalue.bv_val, op->o_tmpmemctx );
 461
 462 return_error:
 463                         Debug( LDAP_DEBUG_FILTER, "  error=%ld\n",
 464                                 (long) rc, 0, 0 );
 465                         slap_sl_free( ssa.sa_initial.bv_val, op->o_tmpmemctx );
 466                         ber_bvarray_free_x( ssa.sa_any, op->o_tmpmemctx );
 467                         slap_sl_free( ssa.sa_final.bv_val, op->o_tmpmemctx );
 468                         return rc;
 469                 }
 470
 471                 rc = LDAP_SUCCESS;
 472         }
 473
 474         if( rc == LDAP_SUCCESS ) {
 475                 *out = op->o_tmpalloc( sizeof( ssa ), op->o_tmpmemctx );
 476                 **out = ssa;
 477         }
 478
 479         Debug( LDAP_DEBUG_FILTER, "end get_ssa\n", 0, 0, 0 );
 480
 481         return rc /* LDAP_SUCCESS */ ;
 482 }
 483
 484 void
 485 filter_free_x( Operation *op, Filter *f )
 486 {
 487         Filter  *p, *next;
 488
 489         if ( f == NULL ) {
 490                 return;
 491         }
 492
 493         switch ( f->f_choice ) {
 494         case LDAP_FILTER_PRESENT:
 495                 break;
 496
 497         case LDAP_FILTER_EQUALITY:
 498         case LDAP_FILTER_GE:
 499         case LDAP_FILTER_LE:
 500         case LDAP_FILTER_APPROX:
 501                 ava_free( op, f->f_ava, 1 );
 502                 break;
 503
 504         case LDAP_FILTER_SUBSTRINGS:
 505                 if ( f->f_sub_initial.bv_val != NULL ) {
 506                         op->o_tmpfree( f->f_sub_initial.bv_val, op->o_tmpmemctx );
 507                 }
 508                 ber_bvarray_free_x( f->f_sub_any, op->o_tmpmemctx );
 509                 if ( f->f_sub_final.bv_val != NULL ) {
 510                         op->o_tmpfree( f->f_sub_final.bv_val, op->o_tmpmemctx );
 511                 }
 512                 op->o_tmpfree( f->f_sub, op->o_tmpmemctx );
 513                 break;
 514
 515         case LDAP_FILTER_AND:
 516         case LDAP_FILTER_OR:
 517         case LDAP_FILTER_NOT:
 518                 for ( p = f->f_list; p != NULL; p = next ) {
 519                         next = p->f_next;
 520                         filter_free_x( op, p );
 521                 }
 522                 break;
 523
 524         case LDAP_FILTER_EXT:
 525                 mra_free( op, f->f_mra, 1 );
 526                 break;
 527
 528         case SLAPD_FILTER_COMPUTED:
 529                 break;
 530
 531         default:
 532                 Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
 533                         f->f_choice, 0, 0 );
 534                 break;
 535         }
 536
 537         op->o_tmpfree( f, op->o_tmpmemctx );
 538 }
 539
 540 void
 541 filter_free( Filter *f )
 542 {
 543         Operation op;
 544         Opheader ohdr;
 545
 546         op.o_hdr = &ohdr;
 547         op.o_tmpmemctx = slap_sl_context( f );
 548         op.o_tmpmfuncs = &slap_sl_mfuncs;
 549         filter_free_x( &op, f );
 550 }
 551
 552 void
 553 filter2bv_x( Operation *op, Filter *f, struct berval *fstr )
 554 {
 555         int             i;
 556         Filter          *p;
 557         struct berval   tmp;
 558         static struct berval
 559                         ber_bvfalse = BER_BVC( "(?=false)" ),
 560                         ber_bvtrue = BER_BVC( "(?=true)" ),
 561                         ber_bvundefined = BER_BVC( "(?=undefined)" ),
 562                         ber_bverror = BER_BVC( "(?=error)" ),
 563                         ber_bvunknown = BER_BVC( "(?=unknown)" ),
 564                         ber_bvnone = BER_BVC( "(?=none)" );
 565         ber_len_t       len;
 566
 567         if ( f == NULL ) {
 568                 ber_dupbv_x( fstr, &ber_bvnone, op->o_tmpmemctx );
 569                 return;
 570         }
 571
 572         switch ( f->f_choice ) {
 573         case LDAP_FILTER_EQUALITY:
 574                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 575
 576                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 577                         tmp.bv_len + ( sizeof("(=)") - 1 );
 578                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 579
 580                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
 581                         f->f_av_desc->ad_cname.bv_val,
 582                         tmp.bv_val );
 583
 584                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 585                 break;
 586
 587         case LDAP_FILTER_GE:
 588                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 589
 590                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 591                         tmp.bv_len + ( sizeof("(>=)") - 1 );
 592                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 593
 594                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
 595                         f->f_av_desc->ad_cname.bv_val,
 596                         tmp.bv_val );
 597
 598                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 599                 break;
 600
 601         case LDAP_FILTER_LE:
 602                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 603
 604                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 605                         tmp.bv_len + ( sizeof("(<=)") - 1 );
 606                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 607
 608                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
 609                         f->f_av_desc->ad_cname.bv_val,
 610                         tmp.bv_val );
 611
 612                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 613                 break;
 614
 615         case LDAP_FILTER_APPROX:
 616                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 617
 618                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 619                         tmp.bv_len + ( sizeof("(~=)") - 1 );
 620                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 621
 622                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
 623                         f->f_av_desc->ad_cname.bv_val,
 624                         tmp.bv_val );
 625                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 626                 break;
 627
 628         case LDAP_FILTER_SUBSTRINGS:
 629                 fstr->bv_len = f->f_sub_desc->ad_cname.bv_len +
 630                         ( sizeof("(=*)") - 1 );
 631                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 632
 633                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 634                         f->f_sub_desc->ad_cname.bv_val );
 635
 636                 if ( f->f_sub_initial.bv_val != NULL ) {
 637                         len = fstr->bv_len;
 638
 639                         filter_escape_value_x( &f->f_sub_initial, &tmp, op->o_tmpmemctx );
 640
 641                         fstr->bv_len += tmp.bv_len;
 642                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 643                                 op->o_tmpmemctx );
 644
 645                         snprintf( &fstr->bv_val[len-2], tmp.bv_len+3,
 646                                 /* "(attr=" */ "%s*)",
 647                                 tmp.bv_val );
 648
 649                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 650                 }
 651
 652                 if ( f->f_sub_any != NULL ) {
 653                         for ( i = 0; f->f_sub_any[i].bv_val != NULL; i++ ) {
 654                                 len = fstr->bv_len;
 655                                 filter_escape_value_x( &f->f_sub_any[i],
 656                                         &tmp, op->o_tmpmemctx );
 657
 658                                 fstr->bv_len += tmp.bv_len + 1;
 659                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 660                                         op->o_tmpmemctx );
 661
 662                                 snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
 663                                         /* "(attr=[init]*[any*]" */ "%s*)",
 664                                         tmp.bv_val );
 665                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 666                         }
 667                 }
 668
 669                 if ( f->f_sub_final.bv_val != NULL ) {
 670                         len = fstr->bv_len;
 671
 672                         filter_escape_value_x( &f->f_sub_final, &tmp, op->o_tmpmemctx );
 673
 674                         fstr->bv_len += tmp.bv_len;
 675                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 676                                 op->o_tmpmemctx );
 677
 678                         snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
 679                                 /* "(attr=[init*][any*]" */ "%s)",
 680                                 tmp.bv_val );
 681
 682                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 683                 }
 684
 685                 break;
 686
 687         case LDAP_FILTER_PRESENT:
 688                 fstr->bv_len = f->f_desc->ad_cname.bv_len +
 689                         ( sizeof("(=*)") - 1 );
 690                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 691
 692                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 693                         f->f_desc->ad_cname.bv_val );
 694                 break;
 695
 696         case LDAP_FILTER_AND:
 697         case LDAP_FILTER_OR:
 698         case LDAP_FILTER_NOT:
 699                 fstr->bv_len = sizeof("(%)") - 1;
 700                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 701
 702                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
 703                         f->f_choice == LDAP_FILTER_AND ? '&' :
 704                         f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 705
 706                 for ( p = f->f_list; p != NULL; p = p->f_next ) {
 707                         len = fstr->bv_len;
 708
 709                         filter2bv_x( op, p, &tmp );
 710
 711                         fstr->bv_len += tmp.bv_len;
 712                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 713                                 op->o_tmpmemctx );
 714
 715                         snprintf( &fstr->bv_val[len-1], tmp.bv_len + 2,
 716                                 /*"("*/ "%s)", tmp.bv_val );
 717
 718                         op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
 719                 }
 720
 721                 break;
 722
 723         case LDAP_FILTER_EXT: {
 724                         struct berval ad;
 725                         filter_escape_value_x( &f->f_mr_value, &tmp, op->o_tmpmemctx );
 726
 727                         if ( f->f_mr_desc ) {
 728                                 ad = f->f_mr_desc->ad_cname;
 729                         } else {
 730                                 ad.bv_len = 0;
 731                                 ad.bv_val = "";
 732                         }
 733
 734                         fstr->bv_len = ad.bv_len +
 735                                 ( f->f_mr_dnattrs ? sizeof(":dn")-1 : 0 ) +
 736                                 ( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len+1 : 0 ) +
 737                                 tmp.bv_len + ( sizeof("(:=)") - 1 );
 738                         fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 739
 740                         snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
 741                                 ad.bv_val,
 742                                 f->f_mr_dnattrs ? ":dn" : "",
 743                                 f->f_mr_rule_text.bv_len ? ":" : "",
 744                                 f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_val : "",
 745                                 tmp.bv_val );
 746                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 747                 } break;
 748
 749         case SLAPD_FILTER_COMPUTED:
 750                 switch ( f->f_result ) {
 751                 case LDAP_COMPARE_FALSE:
 752                         tmp = ber_bvfalse;
 753                         break;
 754
 755                 case LDAP_COMPARE_TRUE:
 756                         tmp = ber_bvtrue;
 757                         break;
 758
 759                 case SLAPD_COMPARE_UNDEFINED:
 760                         tmp = ber_bvundefined;
 761                         break;
 762
 763                 default:
 764                         tmp = ber_bverror;
 765                         break;
 766                 }
 767
 768                 ber_dupbv_x( fstr, &tmp, op->o_tmpmemctx );
 769                 break;
 770
 771         default:
 772                 ber_dupbv_x( fstr, &ber_bvunknown, op->o_tmpmemctx );
 773                 break;
 774         }
 775 }
 776
 777 void
 778 filter2bv( Filter *f, struct berval *fstr )
 779 {
 780         Operation op;
 781         Opheader ohdr;
 782
 783         op.o_hdr = &ohdr;
 784         op.o_tmpmemctx = NULL;
 785         op.o_tmpmfuncs = &ch_mfuncs;
 786
 787         filter2bv_x( &op, f, fstr );
 788 }
 789
 790 static int
 791 filter_escape_value_x(
 792         struct berval *in,
 793         struct berval *out,
 794         void *ctx )
 795 {
 796         ber_len_t i;
 797         assert( in );
 798         assert( out );
 799
 800         i = in->bv_len * 3 + 1;
 801         out->bv_val = ctx ? slap_sl_malloc( i, ctx ) : ch_malloc( i );
 802         out->bv_len = 0;
 803
 804         for( i=0; i < in->bv_len ; i++ ) {
 805                 if( FILTER_ESCAPE(in->bv_val[i]) ) {
 806                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_CHAR;
 807                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_HI( in->bv_val[i] );
 808                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_LO( in->bv_val[i] );
 809                 } else {
 810                         out->bv_val[out->bv_len++] = in->bv_val[i];
 811                 }
 812         }
 813
 814         out->bv_val[out->bv_len] = '\0';
 815         return LDAP_SUCCESS;
 816 }
 817
 818 int
 819 filter_escape_value(
 820         struct berval *in,
 821         struct berval *out )
 822 {
 823         return filter_escape_value_x( in, out, NULL );
 824 }
 825
 826 static int
 827 get_simple_vrFilter(
 828         Operation *op,
 829         BerElement *ber,
 830         ValuesReturnFilter **filt,
 831         const char **text )
 832 {
 833         ber_tag_t       tag;
 834         ber_len_t       len;
 835         int             err;
 836         ValuesReturnFilter vrf;
 837
 838         Debug( LDAP_DEBUG_FILTER, "begin get_simple_vrFilter\n", 0, 0, 0 );
 839
 840         tag = ber_peek_tag( ber, &len );
 841
 842         if( tag == LBER_ERROR ) {
 843                 *text = "error decoding filter";
 844                 return SLAPD_DISCONNECT;
 845         }
 846
 847         vrf.vrf_next = NULL;
 848
 849         err = LDAP_SUCCESS;
 850         vrf.vrf_choice = tag;
 851
 852         switch ( vrf.vrf_choice ) {
 853         case LDAP_FILTER_EQUALITY:
 854                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 855                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_EQUALITY, text );
 856                 if ( err != LDAP_SUCCESS ) {
 857                         break;
 858                 }
 859
 860                 assert( vrf.vrf_ava != NULL );
 861                 break;
 862
 863         case LDAP_FILTER_SUBSTRINGS:
 864                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 865                 err = get_ssa( op, ber, &vrf.vrf_sub, text );
 866                 break;
 867
 868         case LDAP_FILTER_GE:
 869                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 870                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_ORDERING, text );
 871                 if ( err != LDAP_SUCCESS ) {
 872                         break;
 873                 }
 874                 break;
 875
 876         case LDAP_FILTER_LE:
 877                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 878                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_ORDERING, text );
 879                 if ( err != LDAP_SUCCESS ) {
 880                         break;
 881                 }
 882                 break;
 883
 884         case LDAP_FILTER_PRESENT: {
 885                 struct berval type;
 886
 887                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 888                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
 889                         err = SLAPD_DISCONNECT;
 890                         *text = "error decoding filter";
 891                         break;
 892                 }
 893
 894                 vrf.vrf_desc = NULL;
 895                 err = slap_bv2ad( &type, &vrf.vrf_desc, text );
 896
 897                 if( err != LDAP_SUCCESS ) {
 898                         /* unrecognized attribute description or other error */
 899                         Debug( LDAP_DEBUG_ANY,
 900                                 "get_simple_vrFilter: conn %d unknown "
 901                                 "attribute type=%s (%d)\n",
 902                                 op->o_connid, type.bv_val, err );
 903
 904                         vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
 905                         vrf.vrf_result = LDAP_COMPARE_FALSE;
 906                         err = LDAP_SUCCESS;
 907                         break;
 908                 }
 909                 } break;
 910
 911         case LDAP_FILTER_APPROX:
 912                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
 913                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_EQUALITY_APPROX, text );
 914                 if ( err != LDAP_SUCCESS ) {
 915                         break;
 916                 }
 917                 break;
 918
 919         case LDAP_FILTER_EXT:
 920                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
 921
 922                 err = get_mra( op, ber, &vrf.vrf_mra, text );
 923                 if ( err != LDAP_SUCCESS ) {
 924                         break;
 925                 }
 926
 927                 assert( vrf.vrf_mra != NULL );
 928                 break;
 929
 930         default:
 931                 (void) ber_scanf( ber, "x" ); /* skip the element */
 932                 Debug( LDAP_DEBUG_ANY, "get_simple_vrFilter: unknown filter type=%lu\n",
 933                         vrf.vrf_choice, 0, 0 );
 934                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
 935                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
 936                 break;
 937         }
 938
 939         if ( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
 940                 /* ignore error */
 941                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
 942                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
 943                 err = LDAP_SUCCESS;
 944         }
 945
 946         if ( err == LDAP_SUCCESS ) {
 947                 *filt = ch_malloc( sizeof vrf );
 948                 **filt = vrf;
 949         }
 950
 951         Debug( LDAP_DEBUG_FILTER, "end get_simple_vrFilter %d\n", err, 0, 0 );
 952
 953         return err;
 954 }
 955
 956 int
 957 get_vrFilter( Operation *op, BerElement *ber,
 958         ValuesReturnFilter **vrf,
 959         const char **text )
 960 {
 961         /*
 962          * A ValuesReturnFilter looks like this:
 963          *
 964          *      ValuesReturnFilter ::= SEQUENCE OF SimpleFilterItem
 965          *      SimpleFilterItem ::= CHOICE {
 966          *              equalityMatch   [3]     AttributeValueAssertion,
 967          *              substrings      [4]     SubstringFilter,
 968          *              greaterOrEqual  [5]     AttributeValueAssertion,
 969          *              lessOrEqual     [6]     AttributeValueAssertion,
 970          *              present         [7]     AttributeType,
 971          *              approxMatch     [8]     AttributeValueAssertion,
 972          *              extensibleMatch [9]     SimpleMatchingAssertion -- LDAPv3
 973          *      }
 974          *
 975          *      SubstringFilter ::= SEQUENCE {
 976          *              type               AttributeType,
 977          *              SEQUENCE OF CHOICE {
 978          *                      initial          [0] IA5String,
 979          *                      any              [1] IA5String,
 980          *                      final            [2] IA5String
 981          *              }
 982          *      }
 983          *
 984          *      SimpleMatchingAssertion ::= SEQUENCE {  -- LDAPv3
 985          *              matchingRule    [1] MatchingRuleId OPTIONAL,
 986          *              type            [2] AttributeDescription OPTIONAL,
 987          *              matchValue      [3] AssertionValue }
 988          */
 989
 990         ValuesReturnFilter **n;
 991         ber_tag_t       tag;
 992         ber_len_t       len;
 993         char            *last;
 994
 995         Debug( LDAP_DEBUG_FILTER, "begin get_vrFilter\n", 0, 0, 0 );
 996
 997         tag = ber_peek_tag( ber, &len );
 998
 999         if( tag == LBER_ERROR ) {
1000                 *text = "error decoding vrFilter";
1001                 return SLAPD_DISCONNECT;
1002         }
1003
1004         if( tag != LBER_SEQUENCE ) {
1005                 *text = "error decoding vrFilter, expect SEQUENCE tag";
1006                 return SLAPD_DISCONNECT;
1007         }
1008
1009         n = vrf;
1010         for ( tag = ber_first_element( ber, &len, &last );
1011                 tag != LBER_DEFAULT;
1012                 tag = ber_next_element( ber, &len, last ) )
1013         {
1014                 int err = get_simple_vrFilter( op, ber, n, text );
1015
1016                 if ( err != LDAP_SUCCESS ) return( err );
1017
1018                 n = &(*n)->vrf_next;
1019         }
1020         *n = NULL;
1021
1022         Debug( LDAP_DEBUG_FILTER, "end get_vrFilter\n", 0, 0, 0 );
1023         return( LDAP_SUCCESS );
1024 }
1025
1026 void
1027 vrFilter_free( Operation *op, ValuesReturnFilter *vrf )
1028 {
1029         ValuesReturnFilter      *p, *next;
1030
1031         if ( vrf == NULL ) {
1032                 return;
1033         }
1034
1035         for ( p = vrf; p != NULL; p = next ) {
1036                 next = p->vrf_next;
1037
1038                 switch ( vrf->vrf_choice ) {
1039                 case LDAP_FILTER_PRESENT:
1040                         break;
1041
1042                 case LDAP_FILTER_EQUALITY:
1043                 case LDAP_FILTER_GE:
1044                 case LDAP_FILTER_LE:
1045                 case LDAP_FILTER_APPROX:
1046                         ava_free( op, vrf->vrf_ava, 1 );
1047                         break;
1048
1049                 case LDAP_FILTER_SUBSTRINGS:
1050                         if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1051                                 op->o_tmpfree( vrf->vrf_sub_initial.bv_val, op->o_tmpmemctx );
1052                         }
1053                         ber_bvarray_free_x( vrf->vrf_sub_any, op->o_tmpmemctx );
1054                         if ( vrf->vrf_sub_final.bv_val != NULL ) {
1055                                 op->o_tmpfree( vrf->vrf_sub_final.bv_val, op->o_tmpmemctx );
1056                         }
1057                         op->o_tmpfree( vrf->vrf_sub, op->o_tmpmemctx );
1058                         break;
1059
1060                 case LDAP_FILTER_EXT:
1061                         mra_free( op, vrf->vrf_mra, 1 );
1062                         break;
1063
1064                 case SLAPD_FILTER_COMPUTED:
1065                         break;
1066
1067                 default:
1068                         Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
1069                                 vrf->vrf_choice, 0, 0 );
1070                         break;
1071                 }
1072
1073                 op->o_tmpfree( vrf, op->o_tmpmemctx );
1074         }
1075 }
1076
1077 void
1078 vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1079 {
1080         ValuesReturnFilter      *p;
1081         struct berval tmp;
1082         ber_len_t len;
1083
1084         if ( vrf == NULL ) {
1085                 ber_str2bv_x( "No filter!", sizeof("No filter!")-1,
1086                         1, fstr, op->o_tmpmemctx );
1087                 return;
1088         }
1089
1090         fstr->bv_len = sizeof("()") - 1;
1091         fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1092
1093         snprintf( fstr->bv_val, fstr->bv_len + 1, "()");
1094
1095         for ( p = vrf; p != NULL; p = p->vrf_next ) {
1096                 len = fstr->bv_len;
1097
1098                 simple_vrFilter2bv( op, p, &tmp );
1099
1100                 fstr->bv_len += tmp.bv_len;
1101                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1102                         op->o_tmpmemctx );
1103
1104                 snprintf( &fstr->bv_val[len-1], tmp.bv_len + 2,
1105                         /*"("*/ "%s)", tmp.bv_val );
1106
1107                 op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
1108         }
1109 }
1110
1111 static void
1112 simple_vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1113 {
1114         struct berval tmp;
1115         ber_len_t len;
1116
1117         if ( vrf == NULL ) {
1118                 ber_str2bv_x( "No filter!", sizeof("No filter!")-1, 1, fstr,
1119                         op->o_tmpmemctx );
1120                 return;
1121         }
1122
1123         switch ( vrf->vrf_choice ) {
1124         case LDAP_FILTER_EQUALITY:
1125                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1126
1127                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1128                         tmp.bv_len + ( sizeof("(=)") - 1 );
1129                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1130
1131                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
1132                         vrf->vrf_av_desc->ad_cname.bv_val,
1133                         tmp.bv_val );
1134
1135                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1136                 break;
1137
1138         case LDAP_FILTER_GE:
1139                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1140
1141                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1142                         tmp.bv_len + ( sizeof("(>=)") - 1 );
1143                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1144
1145                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
1146                         vrf->vrf_av_desc->ad_cname.bv_val,
1147                         tmp.bv_val );
1148
1149                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1150                 break;
1151
1152         case LDAP_FILTER_LE:
1153                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1154
1155                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1156                         tmp.bv_len + ( sizeof("(<=)") - 1 );
1157                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1158
1159                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
1160                         vrf->vrf_av_desc->ad_cname.bv_val,
1161                         tmp.bv_val );
1162
1163                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1164                 break;
1165
1166         case LDAP_FILTER_APPROX:
1167                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1168
1169                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1170                         tmp.bv_len + ( sizeof("(~=)") - 1 );
1171                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1172
1173                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
1174                         vrf->vrf_av_desc->ad_cname.bv_val,
1175                         tmp.bv_val );
1176                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1177                 break;
1178
1179         case LDAP_FILTER_SUBSTRINGS:
1180                 fstr->bv_len = vrf->vrf_sub_desc->ad_cname.bv_len +
1181                         ( sizeof("(=*)") - 1 );
1182                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1183
1184                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1185                         vrf->vrf_sub_desc->ad_cname.bv_val );
1186
1187                 if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1188                         len = fstr->bv_len;
1189
1190                         filter_escape_value_x( &vrf->vrf_sub_initial, &tmp, op->o_tmpmemctx );
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-2], tmp.bv_len+3,
1197                                 /* "(attr=" */ "%s*)",
1198                                 tmp.bv_val );
1199
1200                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1201                 }
1202
1203                 if ( vrf->vrf_sub_any != NULL ) {
1204                         int i;
1205                         for ( i = 0; vrf->vrf_sub_any[i].bv_val != NULL; i++ ) {
1206                                 len = fstr->bv_len;
1207                                 filter_escape_value_x( &vrf->vrf_sub_any[i], &tmp,
1208                                         op->o_tmpmemctx );
1209
1210                                 fstr->bv_len += tmp.bv_len + 1;
1211                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
1212                                         fstr->bv_len + 1, op->o_tmpmemctx );
1213
1214                                 snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1215                                         /* "(attr=[init]*[any*]" */ "%s*)",
1216                                         tmp.bv_val );
1217                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1218                         }
1219                 }
1220
1221                 if ( vrf->vrf_sub_final.bv_val != NULL ) {
1222                         len = fstr->bv_len;
1223
1224                         filter_escape_value_x( &vrf->vrf_sub_final, &tmp, op->o_tmpmemctx );
1225
1226                         fstr->bv_len += tmp.bv_len;
1227                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1228                                 op->o_tmpmemctx );
1229
1230                         snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1231                                 /* "(attr=[init*][any*]" */ "%s)",
1232                                 tmp.bv_val );
1233
1234                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1235                 }
1236
1237                 break;
1238
1239         case LDAP_FILTER_PRESENT:
1240                 fstr->bv_len = vrf->vrf_desc->ad_cname.bv_len +
1241                         ( sizeof("(=*)") - 1 );
1242                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1243
1244                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1245                         vrf->vrf_desc->ad_cname.bv_val );
1246                 break;
1247
1248         case LDAP_FILTER_EXT: {
1249                 struct berval ad;
1250                 filter_escape_value_x( &vrf->vrf_mr_value, &tmp, op->o_tmpmemctx );
1251
1252                 if ( vrf->vrf_mr_desc ) {
1253                         ad = vrf->vrf_mr_desc->ad_cname;
1254                 } else {
1255                         ad.bv_len = 0;
1256                         ad.bv_val = "";
1257                 }
1258
1259                 fstr->bv_len = ad.bv_len +
1260                         ( vrf->vrf_mr_dnattrs ? sizeof(":dn")-1 : 0 ) +
1261                         ( vrf->vrf_mr_rule_text.bv_len
1262                                 ? vrf->vrf_mr_rule_text.bv_len+1 : 0 ) +
1263                         tmp.bv_len + ( sizeof("(:=)") - 1 );
1264                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1265
1266                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
1267                         ad.bv_val,
1268                         vrf->vrf_mr_dnattrs ? ":dn" : "",
1269                         vrf->vrf_mr_rule_text.bv_len ? ":" : "",
1270                         vrf->vrf_mr_rule_text.bv_len ? vrf->vrf_mr_rule_text.bv_val : "",
1271                         tmp.bv_val );
1272
1273                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1274                 } break;
1275
1276         case SLAPD_FILTER_COMPUTED:
1277                 ber_str2bv_x(
1278                         vrf->vrf_result == LDAP_COMPARE_FALSE ? "(?=false)" :
1279                         vrf->vrf_result == LDAP_COMPARE_TRUE ? "(?=true)" :
1280                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1281                                 ? "(?=undefined)" : "(?=error)",
1282                         vrf->vrf_result == LDAP_COMPARE_FALSE ? sizeof("(?=false)")-1 :
1283                         vrf->vrf_result == LDAP_COMPARE_TRUE ? sizeof("(?=true)")-1 :
1284                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1285                                 ? sizeof("(?=undefined)")-1 : sizeof("(?=error)")-1,
1286                         1, fstr, op->o_tmpmemctx );
1287                 break;
1288
1289         default:
1290                 ber_str2bv_x( "(?=unknown)", sizeof("(?=unknown)")-1,
1291                         1, fstr, op->o_tmpmemctx );
1292                 break;
1293         }
1294 }