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 1998-2005 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 %lu 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 %lu unknown attribute type=%s (%ld)\n",
 353                         op->o_connid, desc.bv_val, (long) 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                         if ( ssa.sa_initial.bv_val != NULL
 386                                 || ssa.sa_any != NULL
 387                                 || ssa.sa_final.bv_val != NULL )
 388                         {
 389                                 rc = LDAP_PROTOCOL_ERROR;
 390                                 goto return_error;
 391                         }
 392                         usage = SLAP_MR_SUBSTR_INITIAL;
 393                         break;
 394
 395                 case LDAP_SUBSTRING_ANY:
 396                         if ( ssa.sa_final.bv_val != NULL ) {
 397                                 rc = LDAP_PROTOCOL_ERROR;
 398                                 goto return_error;
 399                         }
 400                         usage = SLAP_MR_SUBSTR_ANY;
 401                         break;
 402
 403                 case LDAP_SUBSTRING_FINAL:
 404                         if ( ssa.sa_final.bv_val != NULL ) {
 405                                 rc = LDAP_PROTOCOL_ERROR;
 406                                 goto return_error;
 407                         }
 408
 409                         usage = SLAP_MR_SUBSTR_FINAL;
 410                         break;
 411
 412                 default:
 413                         Debug( LDAP_DEBUG_FILTER,
 414                                 "  unknown substring choice=%ld\n",
 415                                 (long) tag, 0, 0 );
 416
 417                         rc = LDAP_PROTOCOL_ERROR;
 418                         goto return_error;
 419                 }
 420
 421                 /* validate/normalize using equality matching rule validator! */
 422                 rc = asserted_value_validate_normalize(
 423                         ssa.sa_desc, ssa.sa_desc->ad_type->sat_equality,
 424                         usage, &value, &nvalue, text, op->o_tmpmemctx );
 425                 if( rc != LDAP_SUCCESS ) goto return_error;
 426
 427                 switch ( tag ) {
 428                 case LDAP_SUBSTRING_INITIAL:
 429                         Debug( LDAP_DEBUG_FILTER, "  INITIAL\n", 0, 0, 0 );
 430                         ssa.sa_initial = nvalue;
 431                         break;
 432
 433                 case LDAP_SUBSTRING_ANY:
 434                         Debug( LDAP_DEBUG_FILTER, "  ANY\n", 0, 0, 0 );
 435                         ber_bvarray_add_x( &ssa.sa_any, &nvalue, op->o_tmpmemctx );
 436                         break;
 437
 438                 case LDAP_SUBSTRING_FINAL:
 439                         Debug( LDAP_DEBUG_FILTER, "  FINAL\n", 0, 0, 0 );
 440                         ssa.sa_final = nvalue;
 441                         break;
 442
 443                 default:
 444                         assert( 0 );
 445                         slap_sl_free( nvalue.bv_val, op->o_tmpmemctx );
 446                         rc = LDAP_PROTOCOL_ERROR;
 447
 448 return_error:
 449                         Debug( LDAP_DEBUG_FILTER, "  error=%ld\n",
 450                                 (long) rc, 0, 0 );
 451                         slap_sl_free( ssa.sa_initial.bv_val, op->o_tmpmemctx );
 452                         ber_bvarray_free_x( ssa.sa_any, op->o_tmpmemctx );
 453                         slap_sl_free( ssa.sa_final.bv_val, op->o_tmpmemctx );
 454                         return rc;
 455                 }
 456
 457                 rc = LDAP_SUCCESS;
 458         }
 459
 460         if( rc == LDAP_SUCCESS ) {
 461                 *out = op->o_tmpalloc( sizeof( ssa ), op->o_tmpmemctx );
 462                 **out = ssa;
 463         }
 464
 465         Debug( LDAP_DEBUG_FILTER, "end get_ssa\n", 0, 0, 0 );
 466         return rc /* LDAP_SUCCESS */ ;
 467 }
 468
 469 void
 470 filter_free_x( Operation *op, Filter *f )
 471 {
 472         Filter  *p, *next;
 473
 474         if ( f == NULL ) {
 475                 return;
 476         }
 477
 478         switch ( f->f_choice ) {
 479         case LDAP_FILTER_PRESENT:
 480                 break;
 481
 482         case LDAP_FILTER_EQUALITY:
 483         case LDAP_FILTER_GE:
 484         case LDAP_FILTER_LE:
 485         case LDAP_FILTER_APPROX:
 486                 ava_free( op, f->f_ava, 1 );
 487                 break;
 488
 489         case LDAP_FILTER_SUBSTRINGS:
 490                 if ( f->f_sub_initial.bv_val != NULL ) {
 491                         op->o_tmpfree( f->f_sub_initial.bv_val, op->o_tmpmemctx );
 492                 }
 493                 ber_bvarray_free_x( f->f_sub_any, op->o_tmpmemctx );
 494                 if ( f->f_sub_final.bv_val != NULL ) {
 495                         op->o_tmpfree( f->f_sub_final.bv_val, op->o_tmpmemctx );
 496                 }
 497                 op->o_tmpfree( f->f_sub, op->o_tmpmemctx );
 498                 break;
 499
 500         case LDAP_FILTER_AND:
 501         case LDAP_FILTER_OR:
 502         case LDAP_FILTER_NOT:
 503                 for ( p = f->f_list; p != NULL; p = next ) {
 504                         next = p->f_next;
 505                         filter_free_x( op, p );
 506                 }
 507                 break;
 508
 509         case LDAP_FILTER_EXT:
 510                 mra_free( op, f->f_mra, 1 );
 511                 break;
 512
 513         case SLAPD_FILTER_COMPUTED:
 514                 break;
 515
 516         default:
 517                 Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
 518                         f->f_choice, 0, 0 );
 519                 break;
 520         }
 521
 522         op->o_tmpfree( f, op->o_tmpmemctx );
 523 }
 524
 525 void
 526 filter_free( Filter *f )
 527 {
 528         Operation op;
 529         Opheader ohdr;
 530
 531         op.o_hdr = &ohdr;
 532         op.o_tmpmemctx = slap_sl_context( f );
 533         op.o_tmpmfuncs = &slap_sl_mfuncs;
 534         filter_free_x( &op, f );
 535 }
 536
 537 void
 538 filter2bv_x( Operation *op, Filter *f, struct berval *fstr )
 539 {
 540         int             i;
 541         Filter          *p;
 542         struct berval   tmp;
 543         static struct berval
 544                         ber_bvfalse = BER_BVC( "(?=false)" ),
 545                         ber_bvtrue = BER_BVC( "(?=true)" ),
 546                         ber_bvundefined = BER_BVC( "(?=undefined)" ),
 547                         ber_bverror = BER_BVC( "(?=error)" ),
 548                         ber_bvunknown = BER_BVC( "(?=unknown)" ),
 549                         ber_bvnone = BER_BVC( "(?=none)" );
 550         ber_len_t       len;
 551
 552         if ( f == NULL ) {
 553                 ber_dupbv_x( fstr, &ber_bvnone, op->o_tmpmemctx );
 554                 return;
 555         }
 556
 557         switch ( f->f_choice ) {
 558         case LDAP_FILTER_EQUALITY:
 559                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 560
 561                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 562                         tmp.bv_len + ( sizeof("(=)") - 1 );
 563                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 564
 565                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
 566                         f->f_av_desc->ad_cname.bv_val,
 567                         tmp.bv_val );
 568
 569                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 570                 break;
 571
 572         case LDAP_FILTER_GE:
 573                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 574
 575                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 576                         tmp.bv_len + ( sizeof("(>=)") - 1 );
 577                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 578
 579                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
 580                         f->f_av_desc->ad_cname.bv_val,
 581                         tmp.bv_val );
 582
 583                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 584                 break;
 585
 586         case LDAP_FILTER_LE:
 587                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 588
 589                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 590                         tmp.bv_len + ( sizeof("(<=)") - 1 );
 591                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 592
 593                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
 594                         f->f_av_desc->ad_cname.bv_val,
 595                         tmp.bv_val );
 596
 597                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 598                 break;
 599
 600         case LDAP_FILTER_APPROX:
 601                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 602
 603                 fstr->bv_len = f->f_av_desc->ad_cname.bv_len +
 604                         tmp.bv_len + ( sizeof("(~=)") - 1 );
 605                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 606
 607                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
 608                         f->f_av_desc->ad_cname.bv_val,
 609                         tmp.bv_val );
 610                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 611                 break;
 612
 613         case LDAP_FILTER_SUBSTRINGS:
 614                 fstr->bv_len = f->f_sub_desc->ad_cname.bv_len +
 615                         ( sizeof("(=*)") - 1 );
 616                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 617
 618                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 619                         f->f_sub_desc->ad_cname.bv_val );
 620
 621                 if ( f->f_sub_initial.bv_val != NULL ) {
 622                         len = fstr->bv_len;
 623
 624                         filter_escape_value_x( &f->f_sub_initial, &tmp, op->o_tmpmemctx );
 625
 626                         fstr->bv_len += tmp.bv_len;
 627                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 628                                 op->o_tmpmemctx );
 629
 630                         snprintf( &fstr->bv_val[len-2], tmp.bv_len+3,
 631                                 /* "(attr=" */ "%s*)",
 632                                 tmp.bv_val );
 633
 634                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 635                 }
 636
 637                 if ( f->f_sub_any != NULL ) {
 638                         for ( i = 0; f->f_sub_any[i].bv_val != NULL; i++ ) {
 639                                 len = fstr->bv_len;
 640                                 filter_escape_value_x( &f->f_sub_any[i],
 641                                         &tmp, op->o_tmpmemctx );
 642
 643                                 fstr->bv_len += tmp.bv_len + 1;
 644                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 645                                         op->o_tmpmemctx );
 646
 647                                 snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
 648                                         /* "(attr=[init]*[any*]" */ "%s*)",
 649                                         tmp.bv_val );
 650                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 651                         }
 652                 }
 653
 654                 if ( f->f_sub_final.bv_val != NULL ) {
 655                         len = fstr->bv_len;
 656
 657                         filter_escape_value_x( &f->f_sub_final, &tmp, op->o_tmpmemctx );
 658
 659                         fstr->bv_len += tmp.bv_len;
 660                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 661                                 op->o_tmpmemctx );
 662
 663                         snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
 664                                 /* "(attr=[init*][any*]" */ "%s)",
 665                                 tmp.bv_val );
 666
 667                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 668                 }
 669
 670                 break;
 671
 672         case LDAP_FILTER_PRESENT:
 673                 fstr->bv_len = f->f_desc->ad_cname.bv_len +
 674                         ( sizeof("(=*)") - 1 );
 675                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 676
 677                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 678                         f->f_desc->ad_cname.bv_val );
 679                 break;
 680
 681         case LDAP_FILTER_AND:
 682         case LDAP_FILTER_OR:
 683         case LDAP_FILTER_NOT:
 684                 fstr->bv_len = sizeof("(%)") - 1;
 685                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 686
 687                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
 688                         f->f_choice == LDAP_FILTER_AND ? '&' :
 689                         f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 690
 691                 for ( p = f->f_list; p != NULL; p = p->f_next ) {
 692                         len = fstr->bv_len;
 693
 694                         filter2bv_x( op, p, &tmp );
 695
 696                         fstr->bv_len += tmp.bv_len;
 697                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 698                                 op->o_tmpmemctx );
 699
 700                         snprintf( &fstr->bv_val[len-1], tmp.bv_len + 2,
 701                                 /*"("*/ "%s)", tmp.bv_val );
 702
 703                         op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
 704                 }
 705
 706                 break;
 707
 708         case LDAP_FILTER_EXT: {
 709                         struct berval ad;
 710                         filter_escape_value_x( &f->f_mr_value, &tmp, op->o_tmpmemctx );
 711
 712                         if ( f->f_mr_desc ) {
 713                                 ad = f->f_mr_desc->ad_cname;
 714                         } else {
 715                                 ad.bv_len = 0;
 716                                 ad.bv_val = "";
 717                         }
 718
 719                         fstr->bv_len = ad.bv_len +
 720                                 ( f->f_mr_dnattrs ? sizeof(":dn")-1 : 0 ) +
 721                                 ( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len+1 : 0 ) +
 722                                 tmp.bv_len + ( sizeof("(:=)") - 1 );
 723                         fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 724
 725                         snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
 726                                 ad.bv_val,
 727                                 f->f_mr_dnattrs ? ":dn" : "",
 728                                 f->f_mr_rule_text.bv_len ? ":" : "",
 729                                 f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_val : "",
 730                                 tmp.bv_val );
 731                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 732                 } break;
 733
 734         case SLAPD_FILTER_COMPUTED:
 735                 switch ( f->f_result ) {
 736                 case LDAP_COMPARE_FALSE:
 737                         tmp = ber_bvfalse;
 738                         break;
 739
 740                 case LDAP_COMPARE_TRUE:
 741                         tmp = ber_bvtrue;
 742                         break;
 743
 744                 case SLAPD_COMPARE_UNDEFINED:
 745                         tmp = ber_bvundefined;
 746                         break;
 747
 748                 default:
 749                         tmp = ber_bverror;
 750                         break;
 751                 }
 752
 753                 ber_dupbv_x( fstr, &tmp, op->o_tmpmemctx );
 754                 break;
 755
 756         default:
 757                 ber_dupbv_x( fstr, &ber_bvunknown, op->o_tmpmemctx );
 758                 break;
 759         }
 760 }
 761
 762 void
 763 filter2bv( Filter *f, struct berval *fstr )
 764 {
 765         Operation op;
 766         Opheader ohdr;
 767
 768         op.o_hdr = &ohdr;
 769         op.o_tmpmemctx = NULL;
 770         op.o_tmpmfuncs = &ch_mfuncs;
 771
 772         filter2bv_x( &op, f, fstr );
 773 }
 774
 775 static int
 776 filter_escape_value_x(
 777         struct berval *in,
 778         struct berval *out,
 779         void *ctx )
 780 {
 781         ber_len_t i;
 782         assert( in != NULL );
 783         assert( out != NULL );
 784
 785         i = in->bv_len * 3 + 1;
 786         out->bv_val = ctx ? slap_sl_malloc( i, ctx ) : ch_malloc( i );
 787         out->bv_len = 0;
 788
 789         for( i=0; i < in->bv_len ; i++ ) {
 790                 if( FILTER_ESCAPE(in->bv_val[i]) ) {
 791                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_CHAR;
 792                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_HI( in->bv_val[i] );
 793                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_LO( in->bv_val[i] );
 794                 } else {
 795                         out->bv_val[out->bv_len++] = in->bv_val[i];
 796                 }
 797         }
 798
 799         out->bv_val[out->bv_len] = '\0';
 800         return LDAP_SUCCESS;
 801 }
 802
 803 int
 804 filter_escape_value(
 805         struct berval *in,
 806         struct berval *out )
 807 {
 808         return filter_escape_value_x( in, out, NULL );
 809 }
 810
 811 static int
 812 get_simple_vrFilter(
 813         Operation *op,
 814         BerElement *ber,
 815         ValuesReturnFilter **filt,
 816         const char **text )
 817 {
 818         ber_tag_t       tag;
 819         ber_len_t       len;
 820         int             err;
 821         ValuesReturnFilter vrf;
 822
 823         Debug( LDAP_DEBUG_FILTER, "begin get_simple_vrFilter\n", 0, 0, 0 );
 824
 825         tag = ber_peek_tag( ber, &len );
 826
 827         if( tag == LBER_ERROR ) {
 828                 *text = "error decoding filter";
 829                 return SLAPD_DISCONNECT;
 830         }
 831
 832         vrf.vrf_next = NULL;
 833
 834         err = LDAP_SUCCESS;
 835         vrf.vrf_choice = tag;
 836
 837         switch ( vrf.vrf_choice ) {
 838         case LDAP_FILTER_EQUALITY:
 839                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 840                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_EQUALITY, text );
 841                 if ( err != LDAP_SUCCESS ) {
 842                         break;
 843                 }
 844
 845                 assert( vrf.vrf_ava != NULL );
 846                 break;
 847
 848         case LDAP_FILTER_SUBSTRINGS:
 849                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 850                 err = get_ssa( op, ber, &vrf.vrf_sub, text );
 851                 break;
 852
 853         case LDAP_FILTER_GE:
 854                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 855                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_ORDERING, text );
 856                 if ( err != LDAP_SUCCESS ) {
 857                         break;
 858                 }
 859                 break;
 860
 861         case LDAP_FILTER_LE:
 862                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 863                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_ORDERING, text );
 864                 if ( err != LDAP_SUCCESS ) {
 865                         break;
 866                 }
 867                 break;
 868
 869         case LDAP_FILTER_PRESENT: {
 870                 struct berval type;
 871
 872                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 873                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
 874                         err = SLAPD_DISCONNECT;
 875                         *text = "error decoding filter";
 876                         break;
 877                 }
 878
 879                 vrf.vrf_desc = NULL;
 880                 err = slap_bv2ad( &type, &vrf.vrf_desc, text );
 881
 882                 if( err != LDAP_SUCCESS ) {
 883                         /* unrecognized attribute description or other error */
 884                         Debug( LDAP_DEBUG_ANY,
 885                                 "get_simple_vrFilter: conn %lu unknown "
 886                                 "attribute type=%s (%d)\n",
 887                                 op->o_connid, type.bv_val, err );
 888
 889                         vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
 890                         vrf.vrf_result = LDAP_COMPARE_FALSE;
 891                         err = LDAP_SUCCESS;
 892                         break;
 893                 }
 894                 } break;
 895
 896         case LDAP_FILTER_APPROX:
 897                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
 898                 err = get_ava( op, ber, &vrf.vrf_ava, SLAP_MR_EQUALITY_APPROX, text );
 899                 if ( err != LDAP_SUCCESS ) {
 900                         break;
 901                 }
 902                 break;
 903
 904         case LDAP_FILTER_EXT:
 905                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
 906
 907                 err = get_mra( op, ber, &vrf.vrf_mra, text );
 908                 if ( err != LDAP_SUCCESS ) {
 909                         break;
 910                 }
 911
 912                 assert( vrf.vrf_mra != NULL );
 913                 break;
 914
 915         default:
 916                 (void) ber_scanf( ber, "x" ); /* skip the element */
 917                 Debug( LDAP_DEBUG_ANY, "get_simple_vrFilter: unknown filter type=%lu\n",
 918                         vrf.vrf_choice, 0, 0 );
 919                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
 920                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
 921                 break;
 922         }
 923
 924         if ( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
 925                 /* ignore error */
 926                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
 927                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
 928                 err = LDAP_SUCCESS;
 929         }
 930
 931         if ( err == LDAP_SUCCESS ) {
 932                 *filt = ch_malloc( sizeof vrf );
 933                 **filt = vrf;
 934         }
 935
 936         Debug( LDAP_DEBUG_FILTER, "end get_simple_vrFilter %d\n", err, 0, 0 );
 937
 938         return err;
 939 }
 940
 941 int
 942 get_vrFilter( Operation *op, BerElement *ber,
 943         ValuesReturnFilter **vrf,
 944         const char **text )
 945 {
 946         /*
 947          * A ValuesReturnFilter looks like this:
 948          *
 949          *      ValuesReturnFilter ::= SEQUENCE OF SimpleFilterItem
 950          *      SimpleFilterItem ::= CHOICE {
 951          *              equalityMatch   [3]     AttributeValueAssertion,
 952          *              substrings      [4]     SubstringFilter,
 953          *              greaterOrEqual  [5]     AttributeValueAssertion,
 954          *              lessOrEqual     [6]     AttributeValueAssertion,
 955          *              present         [7]     AttributeType,
 956          *              approxMatch     [8]     AttributeValueAssertion,
 957          *              extensibleMatch [9]     SimpleMatchingAssertion -- LDAPv3
 958          *      }
 959          *
 960          *      SubstringFilter ::= SEQUENCE {
 961          *              type               AttributeType,
 962          *              SEQUENCE OF CHOICE {
 963          *                      initial          [0] IA5String,
 964          *                      any              [1] IA5String,
 965          *                      final            [2] IA5String
 966          *              }
 967          *      }
 968          *
 969          *      SimpleMatchingAssertion ::= SEQUENCE {  -- LDAPv3
 970          *              matchingRule    [1] MatchingRuleId OPTIONAL,
 971          *              type            [2] AttributeDescription OPTIONAL,
 972          *              matchValue      [3] AssertionValue }
 973          */
 974
 975         ValuesReturnFilter **n;
 976         ber_tag_t       tag;
 977         ber_len_t       len;
 978         char            *last;
 979
 980         Debug( LDAP_DEBUG_FILTER, "begin get_vrFilter\n", 0, 0, 0 );
 981
 982         tag = ber_peek_tag( ber, &len );
 983
 984         if( tag == LBER_ERROR ) {
 985                 *text = "error decoding vrFilter";
 986                 return SLAPD_DISCONNECT;
 987         }
 988
 989         if( tag != LBER_SEQUENCE ) {
 990                 *text = "error decoding vrFilter, expect SEQUENCE tag";
 991                 return SLAPD_DISCONNECT;
 992         }
 993
 994         n = vrf;
 995         for ( tag = ber_first_element( ber, &len, &last );
 996                 tag != LBER_DEFAULT;
 997                 tag = ber_next_element( ber, &len, last ) )
 998         {
 999                 int err = get_simple_vrFilter( op, ber, n, text );
1000
1001                 if ( err != LDAP_SUCCESS ) return( err );
1002
1003                 n = &(*n)->vrf_next;
1004         }
1005         *n = NULL;
1006
1007         Debug( LDAP_DEBUG_FILTER, "end get_vrFilter\n", 0, 0, 0 );
1008         return( LDAP_SUCCESS );
1009 }
1010
1011 void
1012 vrFilter_free( Operation *op, ValuesReturnFilter *vrf )
1013 {
1014         ValuesReturnFilter      *p, *next;
1015
1016         if ( vrf == NULL ) {
1017                 return;
1018         }
1019
1020         for ( p = vrf; p != NULL; p = next ) {
1021                 next = p->vrf_next;
1022
1023                 switch ( vrf->vrf_choice ) {
1024                 case LDAP_FILTER_PRESENT:
1025                         break;
1026
1027                 case LDAP_FILTER_EQUALITY:
1028                 case LDAP_FILTER_GE:
1029                 case LDAP_FILTER_LE:
1030                 case LDAP_FILTER_APPROX:
1031                         ava_free( op, vrf->vrf_ava, 1 );
1032                         break;
1033
1034                 case LDAP_FILTER_SUBSTRINGS:
1035                         if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1036                                 op->o_tmpfree( vrf->vrf_sub_initial.bv_val, op->o_tmpmemctx );
1037                         }
1038                         ber_bvarray_free_x( vrf->vrf_sub_any, op->o_tmpmemctx );
1039                         if ( vrf->vrf_sub_final.bv_val != NULL ) {
1040                                 op->o_tmpfree( vrf->vrf_sub_final.bv_val, op->o_tmpmemctx );
1041                         }
1042                         op->o_tmpfree( vrf->vrf_sub, op->o_tmpmemctx );
1043                         break;
1044
1045                 case LDAP_FILTER_EXT:
1046                         mra_free( op, vrf->vrf_mra, 1 );
1047                         break;
1048
1049                 case SLAPD_FILTER_COMPUTED:
1050                         break;
1051
1052                 default:
1053                         Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
1054                                 vrf->vrf_choice, 0, 0 );
1055                         break;
1056                 }
1057
1058                 op->o_tmpfree( vrf, op->o_tmpmemctx );
1059         }
1060 }
1061
1062 void
1063 vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1064 {
1065         ValuesReturnFilter      *p;
1066         struct berval tmp;
1067         ber_len_t len;
1068
1069         if ( vrf == NULL ) {
1070                 ber_str2bv_x( "No filter!", sizeof("No filter!")-1,
1071                         1, fstr, op->o_tmpmemctx );
1072                 return;
1073         }
1074
1075         fstr->bv_len = sizeof("()") - 1;
1076         fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1077
1078         snprintf( fstr->bv_val, fstr->bv_len + 1, "()");
1079
1080         for ( p = vrf; p != NULL; p = p->vrf_next ) {
1081                 len = fstr->bv_len;
1082
1083                 simple_vrFilter2bv( op, p, &tmp );
1084
1085                 fstr->bv_len += tmp.bv_len;
1086                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1087                         op->o_tmpmemctx );
1088
1089                 snprintf( &fstr->bv_val[len-1], tmp.bv_len + 2,
1090                         /*"("*/ "%s)", tmp.bv_val );
1091
1092                 op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
1093         }
1094 }
1095
1096 static void
1097 simple_vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1098 {
1099         struct berval tmp;
1100         ber_len_t len;
1101
1102         if ( vrf == NULL ) {
1103                 ber_str2bv_x( "No filter!", sizeof("No filter!")-1, 1, fstr,
1104                         op->o_tmpmemctx );
1105                 return;
1106         }
1107
1108         switch ( vrf->vrf_choice ) {
1109         case LDAP_FILTER_EQUALITY:
1110                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1111
1112                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1113                         tmp.bv_len + ( sizeof("(=)") - 1 );
1114                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1115
1116                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
1117                         vrf->vrf_av_desc->ad_cname.bv_val,
1118                         tmp.bv_val );
1119
1120                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1121                 break;
1122
1123         case LDAP_FILTER_GE:
1124                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1125
1126                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1127                         tmp.bv_len + ( sizeof("(>=)") - 1 );
1128                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1129
1130                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
1131                         vrf->vrf_av_desc->ad_cname.bv_val,
1132                         tmp.bv_val );
1133
1134                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1135                 break;
1136
1137         case LDAP_FILTER_LE:
1138                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1139
1140                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1141                         tmp.bv_len + ( sizeof("(<=)") - 1 );
1142                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1143
1144                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
1145                         vrf->vrf_av_desc->ad_cname.bv_val,
1146                         tmp.bv_val );
1147
1148                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1149                 break;
1150
1151         case LDAP_FILTER_APPROX:
1152                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1153
1154                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1155                         tmp.bv_len + ( sizeof("(~=)") - 1 );
1156                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1157
1158                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
1159                         vrf->vrf_av_desc->ad_cname.bv_val,
1160                         tmp.bv_val );
1161                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1162                 break;
1163
1164         case LDAP_FILTER_SUBSTRINGS:
1165                 fstr->bv_len = vrf->vrf_sub_desc->ad_cname.bv_len +
1166                         ( sizeof("(=*)") - 1 );
1167                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1168
1169                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1170                         vrf->vrf_sub_desc->ad_cname.bv_val );
1171
1172                 if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1173                         len = fstr->bv_len;
1174
1175                         filter_escape_value_x( &vrf->vrf_sub_initial, &tmp, op->o_tmpmemctx );
1176
1177                         fstr->bv_len += tmp.bv_len;
1178                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1179                                 op->o_tmpmemctx );
1180
1181                         snprintf( &fstr->bv_val[len-2], tmp.bv_len+3,
1182                                 /* "(attr=" */ "%s*)",
1183                                 tmp.bv_val );
1184
1185                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1186                 }
1187
1188                 if ( vrf->vrf_sub_any != NULL ) {
1189                         int i;
1190                         for ( i = 0; vrf->vrf_sub_any[i].bv_val != NULL; i++ ) {
1191                                 len = fstr->bv_len;
1192                                 filter_escape_value_x( &vrf->vrf_sub_any[i], &tmp,
1193                                         op->o_tmpmemctx );
1194
1195                                 fstr->bv_len += tmp.bv_len + 1;
1196                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
1197                                         fstr->bv_len + 1, op->o_tmpmemctx );
1198
1199                                 snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1200                                         /* "(attr=[init]*[any*]" */ "%s*)",
1201                                         tmp.bv_val );
1202                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1203                         }
1204                 }
1205
1206                 if ( vrf->vrf_sub_final.bv_val != NULL ) {
1207                         len = fstr->bv_len;
1208
1209                         filter_escape_value_x( &vrf->vrf_sub_final, &tmp, op->o_tmpmemctx );
1210
1211                         fstr->bv_len += tmp.bv_len;
1212                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1213                                 op->o_tmpmemctx );
1214
1215                         snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1216                                 /* "(attr=[init*][any*]" */ "%s)",
1217                                 tmp.bv_val );
1218
1219                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1220                 }
1221
1222                 break;
1223
1224         case LDAP_FILTER_PRESENT:
1225                 fstr->bv_len = vrf->vrf_desc->ad_cname.bv_len +
1226                         ( sizeof("(=*)") - 1 );
1227                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1228
1229                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1230                         vrf->vrf_desc->ad_cname.bv_val );
1231                 break;
1232
1233         case LDAP_FILTER_EXT: {
1234                 struct berval ad;
1235                 filter_escape_value_x( &vrf->vrf_mr_value, &tmp, op->o_tmpmemctx );
1236
1237                 if ( vrf->vrf_mr_desc ) {
1238                         ad = vrf->vrf_mr_desc->ad_cname;
1239                 } else {
1240                         ad.bv_len = 0;
1241                         ad.bv_val = "";
1242                 }
1243
1244                 fstr->bv_len = ad.bv_len +
1245                         ( vrf->vrf_mr_dnattrs ? sizeof(":dn")-1 : 0 ) +
1246                         ( vrf->vrf_mr_rule_text.bv_len
1247                                 ? vrf->vrf_mr_rule_text.bv_len+1 : 0 ) +
1248                         tmp.bv_len + ( sizeof("(:=)") - 1 );
1249                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1250
1251                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
1252                         ad.bv_val,
1253                         vrf->vrf_mr_dnattrs ? ":dn" : "",
1254                         vrf->vrf_mr_rule_text.bv_len ? ":" : "",
1255                         vrf->vrf_mr_rule_text.bv_len ? vrf->vrf_mr_rule_text.bv_val : "",
1256                         tmp.bv_val );
1257
1258                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1259                 } break;
1260
1261         case SLAPD_FILTER_COMPUTED:
1262                 ber_str2bv_x(
1263                         vrf->vrf_result == LDAP_COMPARE_FALSE ? "(?=false)" :
1264                         vrf->vrf_result == LDAP_COMPARE_TRUE ? "(?=true)" :
1265                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1266                                 ? "(?=undefined)" : "(?=error)",
1267                         vrf->vrf_result == LDAP_COMPARE_FALSE ? sizeof("(?=false)")-1 :
1268                         vrf->vrf_result == LDAP_COMPARE_TRUE ? sizeof("(?=true)")-1 :
1269                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1270                                 ? sizeof("(?=undefined)")-1 : sizeof("(?=error)")-1,
1271                         1, fstr, op->o_tmpmemctx );
1272                 break;
1273
1274         default:
1275                 ber_str2bv_x( "(?=unknown)", sizeof("(?=unknown)")-1,
1276                         1, fstr, op->o_tmpmemctx );
1277                 break;
1278         }
1279 }