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

   1 /* filter.c - routines for parsing and dealing with filters */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2007 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/socket.h>
  32 #include <ac/string.h>
  33
  34 #include "slap.h"
  35 #include "lutil.h"
  36
  37 const Filter *slap_filter_objectClass_pres;
  38 const struct berval *slap_filterstr_objectClass_pres;
  39
  40 static int      get_filter_list(
  41         Operation *op,
  42         BerElement *ber,
  43         Filter **f,
  44         const char **text );
  45
  46 static int      get_ssa(
  47         Operation *op,
  48         BerElement *ber,
  49         Filter *f,
  50         const char **text );
  51
  52 static void simple_vrFilter2bv(
  53         Operation *op,
  54         ValuesReturnFilter *f,
  55         struct berval *fstr );
  56
  57 static int      get_simple_vrFilter(
  58         Operation *op,
  59         BerElement *ber,
  60         ValuesReturnFilter **f,
  61         const char **text );
  62
  63 int
  64 filter_init( void )
  65 {
  66         static Filter filter_objectClass_pres = { LDAP_FILTER_PRESENT };
  67         static struct berval filterstr_objectClass_pres = BER_BVC("(objectClass=*)");
  68
  69         filter_objectClass_pres.f_desc = slap_schema.si_ad_objectClass;
  70
  71         slap_filter_objectClass_pres = &filter_objectClass_pres;
  72         slap_filterstr_objectClass_pres = &filterstr_objectClass_pres;
  73
  74         return 0;
  75 }
  76
  77 void
  78 filter_destroy( void )
  79 {
  80         return;
  81 }
  82
  83 int
  84 get_filter(
  85         Operation *op,
  86         BerElement *ber,
  87         Filter **filt,
  88         const char **text )
  89 {
  90         ber_tag_t       tag;
  91         ber_len_t       len;
  92         int             err;
  93         Filter          f;
  94
  95         Debug( LDAP_DEBUG_FILTER, "begin get_filter\n", 0, 0, 0 );
  96         /*
  97          * A filter looks like this coming in:
  98          *      Filter ::= CHOICE {
  99          *              and             [0]     SET OF Filter,
 100          *              or              [1]     SET OF Filter,
 101          *              not             [2]     Filter,
 102          *              equalityMatch   [3]     AttributeValueAssertion,
 103          *              substrings      [4]     SubstringFilter,
 104          *              greaterOrEqual  [5]     AttributeValueAssertion,
 105          *              lessOrEqual     [6]     AttributeValueAssertion,
 106          *              present         [7]     AttributeType,
 107          *              approxMatch     [8]     AttributeValueAssertion,
 108          *              extensibleMatch [9]     MatchingRuleAssertion
 109          *      }
 110          *
 111          *      SubstringFilter ::= SEQUENCE {
 112          *              type               AttributeType,
 113          *              SEQUENCE OF CHOICE {
 114          *                      initial          [0] IA5String,
 115          *                      any              [1] IA5String,
 116          *                      final            [2] IA5String
 117          *              }
 118          *      }
 119          *
 120          *      MatchingRuleAssertion ::= SEQUENCE {
 121          *              matchingRule    [1] MatchingRuleId OPTIONAL,
 122          *              type            [2] AttributeDescription OPTIONAL,
 123          *              matchValue      [3] AssertionValue,
 124          *              dnAttributes    [4] BOOLEAN DEFAULT FALSE
 125          *      }
 126          *
 127          */
 128
 129         tag = ber_peek_tag( ber, &len );
 130
 131         if( tag == LBER_ERROR ) {
 132                 *text = "error decoding filter";
 133                 return SLAPD_DISCONNECT;
 134         }
 135
 136         err = LDAP_SUCCESS;
 137
 138         f.f_next = NULL;
 139         f.f_choice = tag;
 140
 141         switch ( f.f_choice ) {
 142         case LDAP_FILTER_EQUALITY:
 143                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 144                 err = get_ava( op, ber, &f, SLAP_MR_EQUALITY, text );
 145                 if ( err != LDAP_SUCCESS ) {
 146                         break;
 147                 }
 148
 149                 assert( f.f_ava != NULL );
 150                 break;
 151
 152         case LDAP_FILTER_SUBSTRINGS:
 153                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 154                 err = get_ssa( op, ber, &f, text );
 155                 if( err != LDAP_SUCCESS ) {
 156                         break;
 157                 }
 158                 assert( f.f_sub != NULL );
 159                 break;
 160
 161         case LDAP_FILTER_GE:
 162                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 163                 err = get_ava( op, ber, &f, SLAP_MR_ORDERING, text );
 164                 if ( err != LDAP_SUCCESS ) {
 165                         break;
 166                 }
 167                 assert( f.f_ava != NULL );
 168                 break;
 169
 170         case LDAP_FILTER_LE:
 171                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 172                 err = get_ava( op, ber, &f, SLAP_MR_ORDERING, text );
 173                 if ( err != LDAP_SUCCESS ) {
 174                         break;
 175                 }
 176                 assert( f.f_ava != NULL );
 177                 break;
 178
 179         case LDAP_FILTER_PRESENT: {
 180                 struct berval type;
 181
 182                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 183                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
 184                         err = SLAPD_DISCONNECT;
 185                         *text = "error decoding filter";
 186                         break;
 187                 }
 188
 189                 f.f_desc = NULL;
 190                 err = slap_bv2ad( &type, &f.f_desc, text );
 191
 192                 if( err != LDAP_SUCCESS ) {
 193                         f.f_choice |= SLAPD_FILTER_UNDEFINED;
 194                         err = slap_bv2undef_ad( &type, &f.f_desc, text,
 195                                 SLAP_AD_PROXIED|SLAP_AD_NOINSERT );
 196
 197                         if ( err != LDAP_SUCCESS ) {
 198                                 /* unrecognized attribute description or other error */
 199                                 Debug( LDAP_DEBUG_ANY,
 200                                         "get_filter: conn %lu unknown attribute "
 201                                         "type=%s (%d)\n",
 202                                         op->o_connid, type.bv_val, err );
 203
 204                                 err = LDAP_SUCCESS;
 205                                 f.f_desc = slap_bv2tmp_ad( &type, op->o_tmpmemctx );
 206                         }
 207                         *text = NULL;
 208                 }
 209
 210                 assert( f.f_desc != NULL );
 211                 } break;
 212
 213         case LDAP_FILTER_APPROX:
 214                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
 215                 err = get_ava( op, ber, &f, SLAP_MR_EQUALITY_APPROX, text );
 216                 if ( err != LDAP_SUCCESS ) {
 217                         break;
 218                 }
 219                 assert( f.f_ava != NULL );
 220                 break;
 221
 222         case LDAP_FILTER_AND:
 223                 Debug( LDAP_DEBUG_FILTER, "AND\n", 0, 0, 0 );
 224                 err = get_filter_list( op, ber, &f.f_and, text );
 225                 if ( err != LDAP_SUCCESS ) {
 226                         break;
 227                 }
 228                 if ( f.f_and == NULL ) {
 229                         f.f_choice = SLAPD_FILTER_COMPUTED;
 230                         f.f_result = LDAP_COMPARE_TRUE;
 231                 }
 232                 /* no assert - list could be empty */
 233                 break;
 234
 235         case LDAP_FILTER_OR:
 236                 Debug( LDAP_DEBUG_FILTER, "OR\n", 0, 0, 0 );
 237                 err = get_filter_list( op, ber, &f.f_or, text );
 238                 if ( err != LDAP_SUCCESS ) {
 239                         break;
 240                 }
 241                 if ( f.f_or == NULL ) {
 242                         f.f_choice = SLAPD_FILTER_COMPUTED;
 243                         f.f_result = LDAP_COMPARE_FALSE;
 244                 }
 245                 /* no assert - list could be empty */
 246                 break;
 247
 248         case LDAP_FILTER_NOT:
 249                 Debug( LDAP_DEBUG_FILTER, "NOT\n", 0, 0, 0 );
 250                 (void) ber_skip_tag( ber, &len );
 251                 err = get_filter( op, ber, &f.f_not, text );
 252                 if ( err != LDAP_SUCCESS ) {
 253                         break;
 254                 }
 255
 256                 assert( f.f_not != NULL );
 257                 if ( f.f_not->f_choice == SLAPD_FILTER_COMPUTED ) {
 258                         int fresult = f.f_not->f_result;
 259                         f.f_choice = SLAPD_FILTER_COMPUTED;
 260                         op->o_tmpfree( f.f_not, op->o_tmpmemctx );
 261                         f.f_not = NULL;
 262
 263                         switch( fresult ) {
 264                         case LDAP_COMPARE_TRUE:
 265                                 f.f_result = LDAP_COMPARE_FALSE;
 266                                 break;
 267                         case LDAP_COMPARE_FALSE:
 268                                 f.f_result = LDAP_COMPARE_TRUE;
 269                                 break;
 270                         default: ;
 271                                 /* (!Undefined) is Undefined */
 272                         }
 273                 }
 274                 break;
 275
 276         case LDAP_FILTER_EXT:
 277                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
 278
 279                 err = get_mra( op, ber, &f, text );
 280                 if ( err != LDAP_SUCCESS ) {
 281                         break;
 282                 }
 283
 284                 assert( f.f_mra != NULL );
 285                 break;
 286
 287         default:
 288                 (void) ber_scanf( ber, "x" ); /* skip the element */
 289                 Debug( LDAP_DEBUG_ANY, "get_filter: unknown filter type=%lu\n",
 290                         f.f_choice, 0, 0 );
 291                 f.f_choice = SLAPD_FILTER_COMPUTED;
 292                 f.f_result = SLAPD_COMPARE_UNDEFINED;
 293                 break;
 294         }
 295
 296         if( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
 297                 /* ignore error */
 298                 *text = NULL;
 299                 f.f_choice = SLAPD_FILTER_COMPUTED;
 300                 f.f_result = SLAPD_COMPARE_UNDEFINED;
 301                 err = LDAP_SUCCESS;
 302         }
 303
 304         if ( err == LDAP_SUCCESS ) {
 305                 *filt = op->o_tmpalloc( sizeof(f), op->o_tmpmemctx );
 306                 **filt = f;
 307         }
 308
 309         Debug( LDAP_DEBUG_FILTER, "end get_filter %d\n", err, 0, 0 );
 310
 311         return( err );
 312 }
 313
 314 static int
 315 get_filter_list( Operation *op, BerElement *ber,
 316         Filter **f,
 317         const char **text )
 318 {
 319         Filter          **new;
 320         int             err;
 321         ber_tag_t       tag;
 322         ber_len_t       len;
 323         char            *last;
 324
 325         Debug( LDAP_DEBUG_FILTER, "begin get_filter_list\n", 0, 0, 0 );
 326         new = f;
 327         for ( tag = ber_first_element( ber, &len, &last );
 328                 tag != LBER_DEFAULT;
 329                 tag = ber_next_element( ber, &len, last ) )
 330         {
 331                 err = get_filter( op, ber, new, text );
 332                 if ( err != LDAP_SUCCESS )
 333                         return( err );
 334                 new = &(*new)->f_next;
 335         }
 336         *new = NULL;
 337
 338         Debug( LDAP_DEBUG_FILTER, "end get_filter_list\n", 0, 0, 0 );
 339         return( LDAP_SUCCESS );
 340 }
 341
 342 static int
 343 get_ssa(
 344         Operation *op,
 345         BerElement      *ber,
 346         Filter          *f,
 347         const char      **text )
 348 {
 349         ber_tag_t       tag;
 350         ber_len_t       len;
 351         ber_tag_t       rc;
 352         struct berval desc, value, nvalue;
 353         char            *last;
 354         SubstringsAssertion ssa;
 355
 356         *text = "error decoding filter";
 357
 358         Debug( LDAP_DEBUG_FILTER, "begin get_ssa\n", 0, 0, 0 );
 359         if ( ber_scanf( ber, "{m" /*}*/, &desc ) == LBER_ERROR ) {
 360                 return SLAPD_DISCONNECT;
 361         }
 362
 363         *text = NULL;
 364
 365         ssa.sa_desc = NULL;
 366         ssa.sa_initial.bv_val = NULL;
 367         ssa.sa_any = NULL;
 368         ssa.sa_final.bv_val = NULL;
 369
 370         rc = slap_bv2ad( &desc, &ssa.sa_desc, text );
 371
 372         if( rc != LDAP_SUCCESS ) {
 373                 f->f_choice |= SLAPD_FILTER_UNDEFINED;
 374                 rc = slap_bv2undef_ad( &desc, &ssa.sa_desc, text,
 375                         SLAP_AD_PROXIED|SLAP_AD_NOINSERT );
 376
 377                 if( rc != LDAP_SUCCESS ) {
 378                         Debug( LDAP_DEBUG_ANY,
 379                                 "get_ssa: conn %lu unknown attribute type=%s (%ld)\n",
 380                                 op->o_connid, desc.bv_val, (long) rc );
 381
 382                         ssa.sa_desc = slap_bv2tmp_ad( &desc, op->o_tmpmemctx );
 383                 }
 384         }
 385
 386         rc = LDAP_PROTOCOL_ERROR;
 387
 388         for ( tag = ber_first_element( ber, &len, &last );
 389                 tag != LBER_DEFAULT;
 390                 tag = ber_next_element( ber, &len, last ) )
 391         {
 392                 unsigned usage;
 393
 394                 rc = ber_scanf( ber, "m", &value );
 395                 if ( rc == LBER_ERROR ) {
 396                         rc = SLAPD_DISCONNECT;
 397                         goto return_error;
 398                 }
 399
 400                 if ( value.bv_val == NULL || value.bv_len == 0 ) {
 401                         rc = LDAP_INVALID_SYNTAX;
 402                         goto return_error;
 403                 }
 404
 405                 switch ( tag ) {
 406                 case LDAP_SUBSTRING_INITIAL:
 407                         if ( ssa.sa_initial.bv_val != NULL
 408                                 || ssa.sa_any != NULL
 409                                 || ssa.sa_final.bv_val != NULL )
 410                         {
 411                                 rc = LDAP_PROTOCOL_ERROR;
 412                                 goto return_error;
 413                         }
 414                         usage = SLAP_MR_SUBSTR_INITIAL;
 415                         break;
 416
 417                 case LDAP_SUBSTRING_ANY:
 418                         if ( ssa.sa_final.bv_val != NULL ) {
 419                                 rc = LDAP_PROTOCOL_ERROR;
 420                                 goto return_error;
 421                         }
 422                         usage = SLAP_MR_SUBSTR_ANY;
 423                         break;
 424
 425                 case LDAP_SUBSTRING_FINAL:
 426                         if ( ssa.sa_final.bv_val != NULL ) {
 427                                 rc = LDAP_PROTOCOL_ERROR;
 428                                 goto return_error;
 429                         }
 430
 431                         usage = SLAP_MR_SUBSTR_FINAL;
 432                         break;
 433
 434                 default:
 435                         Debug( LDAP_DEBUG_FILTER,
 436                                 "  unknown substring choice=%ld\n",
 437                                 (long) tag, 0, 0 );
 438
 439                         rc = LDAP_PROTOCOL_ERROR;
 440                         goto return_error;
 441                 }
 442
 443                 /* validate/normalize using equality matching rule validator! */
 444                 rc = asserted_value_validate_normalize(
 445                         ssa.sa_desc, ssa.sa_desc->ad_type->sat_equality,
 446                         usage, &value, &nvalue, text, op->o_tmpmemctx );
 447                 if( rc != LDAP_SUCCESS ) goto return_error;
 448
 449                 switch ( tag ) {
 450                 case LDAP_SUBSTRING_INITIAL:
 451                         Debug( LDAP_DEBUG_FILTER, "  INITIAL\n", 0, 0, 0 );
 452                         ssa.sa_initial = nvalue;
 453                         break;
 454
 455                 case LDAP_SUBSTRING_ANY:
 456                         Debug( LDAP_DEBUG_FILTER, "  ANY\n", 0, 0, 0 );
 457                         ber_bvarray_add_x( &ssa.sa_any, &nvalue, op->o_tmpmemctx );
 458                         break;
 459
 460                 case LDAP_SUBSTRING_FINAL:
 461                         Debug( LDAP_DEBUG_FILTER, "  FINAL\n", 0, 0, 0 );
 462                         ssa.sa_final = nvalue;
 463                         break;
 464
 465                 default:
 466                         assert( 0 );
 467                         slap_sl_free( nvalue.bv_val, op->o_tmpmemctx );
 468                         rc = LDAP_PROTOCOL_ERROR;
 469
 470 return_error:
 471                         Debug( LDAP_DEBUG_FILTER, "  error=%ld\n",
 472                                 (long) rc, 0, 0 );
 473                         slap_sl_free( ssa.sa_initial.bv_val, op->o_tmpmemctx );
 474                         ber_bvarray_free_x( ssa.sa_any, op->o_tmpmemctx );
 475                         if ( ssa.sa_desc->ad_flags & SLAP_DESC_TEMPORARY )
 476                                 op->o_tmpfree( ssa.sa_desc, op->o_tmpmemctx );
 477                         slap_sl_free( ssa.sa_final.bv_val, op->o_tmpmemctx );
 478                         return rc;
 479                 }
 480
 481                 rc = LDAP_SUCCESS;
 482         }
 483
 484         if( rc == LDAP_SUCCESS ) {
 485                 f->f_sub = op->o_tmpalloc( sizeof( ssa ), op->o_tmpmemctx );
 486                 *f->f_sub = ssa;
 487         }
 488
 489         Debug( LDAP_DEBUG_FILTER, "end get_ssa\n", 0, 0, 0 );
 490         return rc /* LDAP_SUCCESS */ ;
 491 }
 492
 493 void
 494 filter_free_x( Operation *op, Filter *f )
 495 {
 496         Filter  *p, *next;
 497
 498         if ( f == NULL ) {
 499                 return;
 500         }
 501
 502         f->f_choice &= SLAPD_FILTER_MASK;
 503
 504         switch ( f->f_choice ) {
 505         case LDAP_FILTER_PRESENT:
 506                 break;
 507
 508         case LDAP_FILTER_EQUALITY:
 509         case LDAP_FILTER_GE:
 510         case LDAP_FILTER_LE:
 511         case LDAP_FILTER_APPROX:
 512                 ava_free( op, f->f_ava, 1 );
 513                 break;
 514
 515         case LDAP_FILTER_SUBSTRINGS:
 516                 if ( f->f_sub_initial.bv_val != NULL ) {
 517                         op->o_tmpfree( f->f_sub_initial.bv_val, op->o_tmpmemctx );
 518                 }
 519                 ber_bvarray_free_x( f->f_sub_any, op->o_tmpmemctx );
 520                 if ( f->f_sub_final.bv_val != NULL ) {
 521                         op->o_tmpfree( f->f_sub_final.bv_val, op->o_tmpmemctx );
 522                 }
 523                 if ( f->f_sub->sa_desc->ad_flags & SLAP_DESC_TEMPORARY )
 524                         op->o_tmpfree( f->f_sub->sa_desc, op->o_tmpmemctx );
 525                 op->o_tmpfree( f->f_sub, op->o_tmpmemctx );
 526                 break;
 527
 528         case LDAP_FILTER_AND:
 529         case LDAP_FILTER_OR:
 530         case LDAP_FILTER_NOT:
 531                 for ( p = f->f_list; p != NULL; p = next ) {
 532                         next = p->f_next;
 533                         filter_free_x( op, p );
 534                 }
 535                 break;
 536
 537         case LDAP_FILTER_EXT:
 538                 mra_free( op, f->f_mra, 1 );
 539                 break;
 540
 541         case SLAPD_FILTER_COMPUTED:
 542                 break;
 543
 544         default:
 545                 Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
 546                         f->f_choice, 0, 0 );
 547                 break;
 548         }
 549
 550         op->o_tmpfree( f, op->o_tmpmemctx );
 551 }
 552
 553 void
 554 filter_free( Filter *f )
 555 {
 556         Operation op;
 557         Opheader ohdr;
 558
 559         op.o_hdr = &ohdr;
 560         op.o_tmpmemctx = slap_sl_context( f );
 561         op.o_tmpmfuncs = &slap_sl_mfuncs;
 562         filter_free_x( &op, f );
 563 }
 564
 565 void
 566 filter2bv_x( Operation *op, Filter *f, struct berval *fstr )
 567 {
 568         int             i;
 569         Filter          *p;
 570         struct berval   tmp;
 571         char            uuid[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 572         static struct berval
 573                         ber_bvfalse = BER_BVC( "(?=false)" ),
 574                         ber_bvtrue = BER_BVC( "(?=true)" ),
 575                         ber_bvundefined = BER_BVC( "(?=undefined)" ),
 576                         ber_bverror = BER_BVC( "(?=error)" ),
 577                         ber_bvunknown = BER_BVC( "(?=unknown)" ),
 578                         ber_bvnone = BER_BVC( "(?=none)" );
 579         ber_len_t       len;
 580         ber_tag_t       choice;
 581         int undef;
 582         char *sign;
 583
 584         if ( f == NULL ) {
 585                 ber_dupbv_x( fstr, &ber_bvnone, op->o_tmpmemctx );
 586                 return;
 587         }
 588
 589         undef = f->f_choice & SLAPD_FILTER_UNDEFINED;
 590         choice = f->f_choice & SLAPD_FILTER_MASK;
 591
 592         switch ( choice ) {
 593         case LDAP_FILTER_EQUALITY:
 594                 fstr->bv_len = STRLENOF("(=)");
 595                 sign = "=";
 596                 if ( f->f_av_desc->ad_type->sat_syntax == slap_schema.si_ad_entryUUID->ad_type->sat_syntax ) {
 597                         tmp.bv_len = lutil_uuidstr_from_normalized( f->f_av_value.bv_val,
 598                                 f->f_av_value.bv_len, uuid, LDAP_LUTIL_UUIDSTR_BUFSIZE );
 599                         assert( tmp.bv_len > 0 );
 600                         tmp.bv_val = uuid;
 601                         goto escaped;
 602                 }
 603                 goto simple;
 604         case LDAP_FILTER_GE:
 605                 fstr->bv_len = STRLENOF("(>=)");
 606                 sign = ">=";
 607                 goto simple;
 608         case LDAP_FILTER_LE:
 609                 fstr->bv_len = STRLENOF("(<=)");
 610                 sign = "<=";
 611                 goto simple;
 612         case LDAP_FILTER_APPROX:
 613                 fstr->bv_len = STRLENOF("(~=)");
 614                 sign = "~=";
 615
 616 simple:
 617                 filter_escape_value_x( &f->f_av_value, &tmp, op->o_tmpmemctx );
 618                 /* NOTE: tmp can legitimately be NULL (meaning empty)
 619                  * since in a Filter values in AVAs are supposed
 620                  * to have been normalized, meaning that an empty value
 621                  * is legal for that attribute's syntax */
 622
 623 escaped:
 624                 fstr->bv_len += f->f_av_desc->ad_cname.bv_len + tmp.bv_len;
 625                 if ( undef )
 626                         fstr->bv_len++;
 627                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 628
 629                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s)",
 630                         undef ? "?" : "",
 631                         f->f_av_desc->ad_cname.bv_val, sign,
 632                         tmp.bv_len ? tmp.bv_val : "" );
 633
 634                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 635                 break;
 636
 637         case LDAP_FILTER_SUBSTRINGS:
 638                 fstr->bv_len = f->f_sub_desc->ad_cname.bv_len +
 639                         STRLENOF("(=*)");
 640                 if ( undef )
 641                         fstr->bv_len++;
 642                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 643
 644                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s=*)",
 645                         undef ? "?" : "",
 646                         f->f_sub_desc->ad_cname.bv_val );
 647
 648                 if ( f->f_sub_initial.bv_val != NULL ) {
 649                         ber_len_t tmplen;
 650
 651                         len = fstr->bv_len;
 652
 653                         filter_escape_value_x( &f->f_sub_initial, &tmp, op->o_tmpmemctx );
 654                         tmplen = tmp.bv_len;
 655
 656                         fstr->bv_len += tmplen;
 657                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
 658                                 fstr->bv_len + 1, op->o_tmpmemctx );
 659
 660                         snprintf( &fstr->bv_val[len - 2],
 661                                 tmplen + STRLENOF( /*(*/ "*)" ) + 1,
 662                                 /* "(attr=" */ "%s*)",
 663                                 tmp.bv_len ? tmp.bv_val : "");
 664
 665                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 666                 }
 667
 668                 if ( f->f_sub_any != NULL ) {
 669                         for ( i = 0; f->f_sub_any[i].bv_val != NULL; i++ ) {
 670                                 ber_len_t tmplen;
 671
 672                                 len = fstr->bv_len;
 673                                 filter_escape_value_x( &f->f_sub_any[i],
 674                                         &tmp, op->o_tmpmemctx );
 675                                 tmplen = tmp.bv_len;
 676
 677                                 fstr->bv_len += tmplen + STRLENOF( /*(*/ ")" );
 678                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
 679                                         fstr->bv_len + 1, op->o_tmpmemctx );
 680
 681                                 snprintf( &fstr->bv_val[len - 1],
 682                                         tmplen + STRLENOF( /*(*/ "*)" ) + 1,
 683                                         /* "(attr=[init]*[any*]" */ "%s*)",
 684                                         tmp.bv_len ? tmp.bv_val : "");
 685                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 686                         }
 687                 }
 688
 689                 if ( f->f_sub_final.bv_val != NULL ) {
 690                         ber_len_t tmplen;
 691
 692                         len = fstr->bv_len;
 693
 694                         filter_escape_value_x( &f->f_sub_final, &tmp, op->o_tmpmemctx );
 695                         tmplen = tmp.bv_len;
 696
 697                         fstr->bv_len += tmplen;
 698                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
 699                                 fstr->bv_len + 1, op->o_tmpmemctx );
 700
 701                         snprintf( &fstr->bv_val[len - 1],
 702                                 tmplen + STRLENOF( /*(*/ ")" ) + 1,
 703                                 /* "(attr=[init*][any*]" */ "%s)",
 704                                 tmp.bv_len ? tmp.bv_val : "");
 705
 706                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 707                 }
 708
 709                 break;
 710
 711         case LDAP_FILTER_PRESENT:
 712                 fstr->bv_len = f->f_desc->ad_cname.bv_len +
 713                         STRLENOF("(=*)");
 714                 if ( undef )
 715                         fstr->bv_len++;
 716
 717                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 718
 719                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s=*)",
 720                         undef ? "?" : "",
 721                         f->f_desc->ad_cname.bv_val );
 722                 break;
 723
 724         case LDAP_FILTER_AND:
 725         case LDAP_FILTER_OR:
 726         case LDAP_FILTER_NOT:
 727                 fstr->bv_len = STRLENOF("(%)");
 728                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 729
 730                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
 731                         f->f_choice == LDAP_FILTER_AND ? '&' :
 732                         f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 733
 734                 for ( p = f->f_list; p != NULL; p = p->f_next ) {
 735                         len = fstr->bv_len;
 736
 737                         filter2bv_x( op, p, &tmp );
 738
 739                         fstr->bv_len += tmp.bv_len;
 740                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 741                                 op->o_tmpmemctx );
 742
 743                         snprintf( &fstr->bv_val[len-1],
 744                                 tmp.bv_len + STRLENOF( /*(*/ ")" ) + 1,
 745                                 /*"("*/ "%s)", tmp.bv_val );
 746
 747                         op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
 748                 }
 749
 750                 break;
 751
 752         case LDAP_FILTER_EXT: {
 753                 struct berval ad;
 754
 755                 filter_escape_value_x( &f->f_mr_value, &tmp, op->o_tmpmemctx );
 756                 /* NOTE: tmp can legitimately be NULL (meaning empty)
 757                  * since in a Filter values in MRAs are supposed
 758                  * to have been normalized, meaning that an empty value
 759                  * is legal for that attribute's syntax */
 760
 761                 if ( f->f_mr_desc ) {
 762                         ad = f->f_mr_desc->ad_cname;
 763                 } else {
 764                         ad.bv_len = 0;
 765                         ad.bv_val = "";
 766                 }
 767
 768                 fstr->bv_len = ad.bv_len +
 769                         ( f->f_mr_dnattrs ? STRLENOF(":dn") : 0 ) +
 770                         ( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len+1 : 0 ) +
 771                         tmp.bv_len + STRLENOF("(:=)");
 772                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 773
 774                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s%s:=%s)",
 775                         undef ? "?" : "",
 776                         ad.bv_val,
 777                         f->f_mr_dnattrs ? ":dn" : "",
 778                         f->f_mr_rule_text.bv_len ? ":" : "",
 779                         f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_val : "",
 780                         tmp.bv_len ? tmp.bv_val : "" );
 781                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
 782                 } break;
 783
 784         case SLAPD_FILTER_COMPUTED:
 785                 switch ( f->f_result ) {
 786                 case LDAP_COMPARE_FALSE:
 787                         tmp = ber_bvfalse;
 788                         break;
 789
 790                 case LDAP_COMPARE_TRUE:
 791                         tmp = ber_bvtrue;
 792                         break;
 793
 794                 case SLAPD_COMPARE_UNDEFINED:
 795                         tmp = ber_bvundefined;
 796                         break;
 797
 798                 default:
 799                         tmp = ber_bverror;
 800                         break;
 801                 }
 802
 803                 ber_dupbv_x( fstr, &tmp, op->o_tmpmemctx );
 804                 break;
 805
 806         default:
 807                 ber_dupbv_x( fstr, &ber_bvunknown, op->o_tmpmemctx );
 808                 break;
 809         }
 810 }
 811
 812 void
 813 filter2bv( Filter *f, struct berval *fstr )
 814 {
 815         Operation op;
 816         Opheader ohdr;
 817
 818         op.o_hdr = &ohdr;
 819         op.o_tmpmemctx = NULL;
 820         op.o_tmpmfuncs = &ch_mfuncs;
 821
 822         filter2bv_x( &op, f, fstr );
 823 }
 824
 825 Filter *
 826 filter_dup( Filter *f, void *memctx )
 827 {
 828         BerMemoryFunctions *mf = &slap_sl_mfuncs;
 829         Filter *n;
 830
 831         if ( !f )
 832                 return NULL;
 833
 834         n = mf->bmf_malloc( sizeof(Filter), memctx );
 835         n->f_choice = f->f_choice;
 836         n->f_next = NULL;
 837
 838         switch( f->f_choice & SLAPD_FILTER_MASK ) {
 839         case SLAPD_FILTER_COMPUTED:
 840                 n->f_result = f->f_result;
 841                 break;
 842         case LDAP_FILTER_PRESENT:
 843                 if ( f->f_desc->ad_flags & SLAP_DESC_TEMPORARY )
 844                         n->f_desc = slap_bv2tmp_ad( &f->f_desc->ad_cname, memctx );
 845                 else
 846                         n->f_desc = f->f_desc;
 847                 break;
 848         case LDAP_FILTER_EQUALITY:
 849         case LDAP_FILTER_GE:
 850         case LDAP_FILTER_LE:
 851         case LDAP_FILTER_APPROX:
 852                 /* Should this be ava_dup() ? */
 853                 n->f_ava = mf->bmf_calloc( 1, sizeof(AttributeAssertion), memctx );
 854                 *n->f_ava = *f->f_ava;
 855                 if ( f->f_av_desc->ad_flags & SLAP_DESC_TEMPORARY )
 856                         n->f_av_desc = slap_bv2tmp_ad( &f->f_av_desc->ad_cname, memctx );
 857                 ber_dupbv_x( &n->f_av_value, &f->f_av_value, memctx );
 858                 break;
 859         case LDAP_FILTER_SUBSTRINGS:
 860                 n->f_sub = mf->bmf_calloc( 1, sizeof(SubstringsAssertion), memctx );
 861                 if ( f->f_sub_desc->ad_flags & SLAP_DESC_TEMPORARY )
 862                         n->f_sub_desc = slap_bv2tmp_ad( &f->f_sub_desc->ad_cname, memctx );
 863                 else
 864                         n->f_sub_desc = f->f_sub_desc;
 865                 if ( !BER_BVISNULL( &f->f_sub_initial ))
 866                         ber_dupbv_x( &n->f_sub_initial, &f->f_sub_initial, memctx );
 867                 if ( f->f_sub_any ) {
 868                         int i;
 869                         for ( i = 0; !BER_BVISNULL( &f->f_sub_any[i] ); i++ );
 870                         n->f_sub_any = mf->bmf_malloc(( i+1 )*sizeof( struct berval ),
 871                                 memctx );
 872                         for ( i = 0; !BER_BVISNULL( &f->f_sub_any[i] ); i++ ) {
 873                                 ber_dupbv_x( &n->f_sub_any[i], &f->f_sub_any[i], memctx );
 874                         }
 875                         BER_BVZERO( &n->f_sub_any[i] );
 876                 }
 877                 if ( !BER_BVISNULL( &f->f_sub_final ))
 878                         ber_dupbv_x( &n->f_sub_final, &f->f_sub_final, memctx );
 879                 break;
 880         case LDAP_FILTER_EXT: {
 881                 /* Should this be mra_dup() ? */
 882                 ber_len_t length;
 883                 length = sizeof(MatchingRuleAssertion);
 884                 if ( !BER_BVISNULL( &f->f_mr_rule_text ))
 885                         length += f->f_mr_rule_text.bv_len + 1;
 886                 n->f_mra = mf->bmf_calloc( 1, length, memctx );
 887                 *n->f_mra = *f->f_mra;
 888                 if ( f->f_mr_desc && ( f->f_sub_desc->ad_flags & SLAP_DESC_TEMPORARY ))
 889                         n->f_mr_desc = slap_bv2tmp_ad( &f->f_mr_desc->ad_cname, memctx );
 890                 ber_dupbv_x( &n->f_mr_value, &f->f_mr_value, memctx );
 891                 if ( !BER_BVISNULL( &f->f_mr_rule_text )) {
 892                         n->f_mr_rule_text.bv_val = (char *)(n->f_mra+1);
 893                         AC_MEMCPY(n->f_mr_rule_text.bv_val,
 894                                 f->f_mr_rule_text.bv_val, f->f_mr_rule_text.bv_len );
 895                 }
 896                 } break;
 897         case LDAP_FILTER_AND:
 898         case LDAP_FILTER_OR:
 899         case LDAP_FILTER_NOT: {
 900                 Filter **p;
 901                 for ( p = &n->f_list, f = f->f_list; f; f = f->f_next ) {
 902                         *p = filter_dup( f, memctx );
 903                         p = &(*p)->f_next;
 904                 }
 905                 } break;
 906         }
 907         return n;
 908 }
 909
 910 static int
 911 get_simple_vrFilter(
 912         Operation *op,
 913         BerElement *ber,
 914         ValuesReturnFilter **filt,
 915         const char **text )
 916 {
 917         ber_tag_t       tag;
 918         ber_len_t       len;
 919         int             err;
 920         ValuesReturnFilter vrf;
 921
 922         Debug( LDAP_DEBUG_FILTER, "begin get_simple_vrFilter\n", 0, 0, 0 );
 923
 924         tag = ber_peek_tag( ber, &len );
 925
 926         if( tag == LBER_ERROR ) {
 927                 *text = "error decoding filter";
 928                 return SLAPD_DISCONNECT;
 929         }
 930
 931         vrf.vrf_next = NULL;
 932
 933         err = LDAP_SUCCESS;
 934         vrf.vrf_choice = tag;
 935
 936         switch ( vrf.vrf_choice ) {
 937         case LDAP_FILTER_EQUALITY:
 938                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 939                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_EQUALITY, text );
 940                 if ( err != LDAP_SUCCESS ) {
 941                         break;
 942                 }
 943
 944                 assert( vrf.vrf_ava != NULL );
 945                 break;
 946
 947         case LDAP_FILTER_SUBSTRINGS:
 948                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 949                 err = get_ssa( op, ber, (Filter *)&vrf, text );
 950                 break;
 951
 952         case LDAP_FILTER_GE:
 953                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 954                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_ORDERING, text );
 955                 if ( err != LDAP_SUCCESS ) {
 956                         break;
 957                 }
 958                 break;
 959
 960         case LDAP_FILTER_LE:
 961                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 962                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_ORDERING, text );
 963                 if ( err != LDAP_SUCCESS ) {
 964                         break;
 965                 }
 966                 break;
 967
 968         case LDAP_FILTER_PRESENT: {
 969                 struct berval type;
 970
 971                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 972                 if ( ber_scanf( ber, "m", &type ) == LBER_ERROR ) {
 973                         err = SLAPD_DISCONNECT;
 974                         *text = "error decoding filter";
 975                         break;
 976                 }
 977
 978                 vrf.vrf_desc = NULL;
 979                 err = slap_bv2ad( &type, &vrf.vrf_desc, text );
 980
 981                 if( err != LDAP_SUCCESS ) {
 982                         vrf.vrf_choice |= SLAPD_FILTER_UNDEFINED;
 983                         err = slap_bv2undef_ad( &type, &vrf.vrf_desc, text,
 984                                 SLAP_AD_PROXIED);
 985
 986                         if( err != LDAP_SUCCESS ) {
 987                                 /* unrecognized attribute description or other error */
 988                                 Debug( LDAP_DEBUG_ANY,
 989                                         "get_simple_vrFilter: conn %lu unknown "
 990                                         "attribute type=%s (%d)\n",
 991                                         op->o_connid, type.bv_val, err );
 992
 993                                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
 994                                 vrf.vrf_result = LDAP_COMPARE_FALSE;
 995                                 err = LDAP_SUCCESS;
 996                                 break;
 997                         }
 998                 }
 999                 } break;
1000
1001         case LDAP_FILTER_APPROX:
1002                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
1003                 err = get_ava( op, ber, (Filter *)&vrf, SLAP_MR_EQUALITY_APPROX, text );
1004                 if ( err != LDAP_SUCCESS ) {
1005                         break;
1006                 }
1007                 break;
1008
1009         case LDAP_FILTER_EXT:
1010                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
1011
1012                 err = get_mra( op, ber, (Filter *)&vrf, text );
1013                 if ( err != LDAP_SUCCESS ) {
1014                         break;
1015                 }
1016
1017                 assert( vrf.vrf_mra != NULL );
1018                 break;
1019
1020         default:
1021                 (void) ber_scanf( ber, "x" ); /* skip the element */
1022                 Debug( LDAP_DEBUG_ANY, "get_simple_vrFilter: unknown filter type=%lu\n",
1023                         vrf.vrf_choice, 0, 0 );
1024                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1025                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
1026                 break;
1027         }
1028
1029         if ( err != LDAP_SUCCESS && err != SLAPD_DISCONNECT ) {
1030                 /* ignore error */
1031                 vrf.vrf_choice = SLAPD_FILTER_COMPUTED;
1032                 vrf.vrf_result = SLAPD_COMPARE_UNDEFINED;
1033                 err = LDAP_SUCCESS;
1034         }
1035
1036         if ( err == LDAP_SUCCESS ) {
1037                 *filt = op->o_tmpalloc( sizeof vrf, op->o_tmpmemctx );
1038                 **filt = vrf;
1039         }
1040
1041         Debug( LDAP_DEBUG_FILTER, "end get_simple_vrFilter %d\n", err, 0, 0 );
1042
1043         return err;
1044 }
1045
1046 int
1047 get_vrFilter( Operation *op, BerElement *ber,
1048         ValuesReturnFilter **vrf,
1049         const char **text )
1050 {
1051         /*
1052          * A ValuesReturnFilter looks like this:
1053          *
1054          *      ValuesReturnFilter ::= SEQUENCE OF SimpleFilterItem
1055          *      SimpleFilterItem ::= CHOICE {
1056          *              equalityMatch   [3]     AttributeValueAssertion,
1057          *              substrings      [4]     SubstringFilter,
1058          *              greaterOrEqual  [5]     AttributeValueAssertion,
1059          *              lessOrEqual     [6]     AttributeValueAssertion,
1060          *              present         [7]     AttributeType,
1061          *              approxMatch     [8]     AttributeValueAssertion,
1062          *              extensibleMatch [9]     SimpleMatchingAssertion -- LDAPv3
1063          *      }
1064          *
1065          *      SubstringFilter ::= SEQUENCE {
1066          *              type               AttributeType,
1067          *              SEQUENCE OF CHOICE {
1068          *                      initial          [0] IA5String,
1069          *                      any              [1] IA5String,
1070          *                      final            [2] IA5String
1071          *              }
1072          *      }
1073          *
1074          *      SimpleMatchingAssertion ::= SEQUENCE {  -- LDAPv3
1075          *              matchingRule    [1] MatchingRuleId OPTIONAL,
1076          *              type            [2] AttributeDescription OPTIONAL,
1077          *              matchValue      [3] AssertionValue }
1078          */
1079
1080         ValuesReturnFilter **n;
1081         ber_tag_t       tag;
1082         ber_len_t       len;
1083         char            *last;
1084
1085         Debug( LDAP_DEBUG_FILTER, "begin get_vrFilter\n", 0, 0, 0 );
1086
1087         tag = ber_peek_tag( ber, &len );
1088
1089         if( tag == LBER_ERROR ) {
1090                 *text = "error decoding vrFilter";
1091                 return SLAPD_DISCONNECT;
1092         }
1093
1094         if( tag != LBER_SEQUENCE ) {
1095                 *text = "error decoding vrFilter, expect SEQUENCE tag";
1096                 return SLAPD_DISCONNECT;
1097         }
1098
1099         n = vrf;
1100         for ( tag = ber_first_element( ber, &len, &last );
1101                 tag != LBER_DEFAULT;
1102                 tag = ber_next_element( ber, &len, last ) )
1103         {
1104                 int err = get_simple_vrFilter( op, ber, n, text );
1105
1106                 if ( err != LDAP_SUCCESS ) return( err );
1107
1108                 n = &(*n)->vrf_next;
1109         }
1110         *n = NULL;
1111
1112         Debug( LDAP_DEBUG_FILTER, "end get_vrFilter\n", 0, 0, 0 );
1113         return( LDAP_SUCCESS );
1114 }
1115
1116 void
1117 vrFilter_free( Operation *op, ValuesReturnFilter *vrf )
1118 {
1119         ValuesReturnFilter      *p, *next;
1120
1121         if ( vrf == NULL ) {
1122                 return;
1123         }
1124
1125         for ( p = vrf; p != NULL; p = next ) {
1126                 next = p->vrf_next;
1127
1128                 switch ( vrf->vrf_choice & SLAPD_FILTER_MASK ) {
1129                 case LDAP_FILTER_PRESENT:
1130                         break;
1131
1132                 case LDAP_FILTER_EQUALITY:
1133                 case LDAP_FILTER_GE:
1134                 case LDAP_FILTER_LE:
1135                 case LDAP_FILTER_APPROX:
1136                         ava_free( op, vrf->vrf_ava, 1 );
1137                         break;
1138
1139                 case LDAP_FILTER_SUBSTRINGS:
1140                         if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1141                                 op->o_tmpfree( vrf->vrf_sub_initial.bv_val, op->o_tmpmemctx );
1142                         }
1143                         ber_bvarray_free_x( vrf->vrf_sub_any, op->o_tmpmemctx );
1144                         if ( vrf->vrf_sub_final.bv_val != NULL ) {
1145                                 op->o_tmpfree( vrf->vrf_sub_final.bv_val, op->o_tmpmemctx );
1146                         }
1147                         op->o_tmpfree( vrf->vrf_sub, op->o_tmpmemctx );
1148                         break;
1149
1150                 case LDAP_FILTER_EXT:
1151                         mra_free( op, vrf->vrf_mra, 1 );
1152                         break;
1153
1154                 case SLAPD_FILTER_COMPUTED:
1155                         break;
1156
1157                 default:
1158                         Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
1159                                 vrf->vrf_choice, 0, 0 );
1160                         break;
1161                 }
1162
1163                 op->o_tmpfree( vrf, op->o_tmpmemctx );
1164         }
1165 }
1166
1167 void
1168 vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1169 {
1170         ValuesReturnFilter      *p;
1171         struct berval tmp;
1172         ber_len_t len;
1173
1174         if ( vrf == NULL ) {
1175                 ber_str2bv_x( "No filter!", STRLENOF("No filter!"),
1176                         1, fstr, op->o_tmpmemctx );
1177                 return;
1178         }
1179
1180         fstr->bv_len = STRLENOF("()");
1181         fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1182
1183         snprintf( fstr->bv_val, fstr->bv_len + 1, "()");
1184
1185         for ( p = vrf; p != NULL; p = p->vrf_next ) {
1186                 len = fstr->bv_len;
1187
1188                 simple_vrFilter2bv( op, p, &tmp );
1189
1190                 fstr->bv_len += tmp.bv_len;
1191                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1192                         op->o_tmpmemctx );
1193
1194                 snprintf( &fstr->bv_val[len-1], tmp.bv_len + 2,
1195                         /*"("*/ "%s)", tmp.bv_val );
1196
1197                 op->o_tmpfree( tmp.bv_val, op->o_tmpmemctx );
1198         }
1199 }
1200
1201 static void
1202 simple_vrFilter2bv( Operation *op, ValuesReturnFilter *vrf, struct berval *fstr )
1203 {
1204         struct berval tmp;
1205         ber_len_t len;
1206         int undef;
1207
1208         if ( vrf == NULL ) {
1209                 ber_str2bv_x( "No filter!", STRLENOF("No filter!"), 1, fstr,
1210                         op->o_tmpmemctx );
1211                 return;
1212         }
1213         undef = vrf->vrf_choice & SLAPD_FILTER_UNDEFINED;
1214
1215         switch ( vrf->vrf_choice & SLAPD_FILTER_MASK ) {
1216         case LDAP_FILTER_EQUALITY:
1217                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1218
1219                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1220                         tmp.bv_len + STRLENOF("(=)");
1221                 if ( undef ) fstr->bv_len++;
1222                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1223
1224                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
1225                         vrf->vrf_av_desc->ad_cname.bv_val,
1226                         tmp.bv_val );
1227
1228                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1229                 break;
1230
1231         case LDAP_FILTER_GE:
1232                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1233
1234                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1235                         tmp.bv_len + STRLENOF("(>=)");
1236                 if ( undef ) fstr->bv_len++;
1237                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1238
1239                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
1240                         vrf->vrf_av_desc->ad_cname.bv_val,
1241                         tmp.bv_val );
1242
1243                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1244                 break;
1245
1246         case LDAP_FILTER_LE:
1247                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1248
1249                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1250                         tmp.bv_len + STRLENOF("(<=)");
1251                 if ( undef ) fstr->bv_len++;
1252                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1253
1254                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
1255                         vrf->vrf_av_desc->ad_cname.bv_val,
1256                         tmp.bv_val );
1257
1258                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1259                 break;
1260
1261         case LDAP_FILTER_APPROX:
1262                 filter_escape_value_x( &vrf->vrf_av_value, &tmp, op->o_tmpmemctx );
1263
1264                 fstr->bv_len = vrf->vrf_av_desc->ad_cname.bv_len +
1265                         tmp.bv_len + STRLENOF("(~=)");
1266                 if ( undef ) fstr->bv_len++;
1267                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1268
1269                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
1270                         vrf->vrf_av_desc->ad_cname.bv_val,
1271                         tmp.bv_val );
1272                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1273                 break;
1274
1275         case LDAP_FILTER_SUBSTRINGS:
1276                 fstr->bv_len = vrf->vrf_sub_desc->ad_cname.bv_len +
1277                         STRLENOF("(=*)");
1278                 if ( undef ) fstr->bv_len++;
1279                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
1280
1281                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1282                         vrf->vrf_sub_desc->ad_cname.bv_val );
1283
1284                 if ( vrf->vrf_sub_initial.bv_val != NULL ) {
1285                         len = fstr->bv_len;
1286
1287                         filter_escape_value_x( &vrf->vrf_sub_initial, &tmp, op->o_tmpmemctx );
1288
1289                         fstr->bv_len += tmp.bv_len;
1290                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1291                                 op->o_tmpmemctx );
1292
1293                         snprintf( &fstr->bv_val[len-2], tmp.bv_len+3,
1294                                 /* "(attr=" */ "%s*)",
1295                                 tmp.bv_val );
1296
1297                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1298                 }
1299
1300                 if ( vrf->vrf_sub_any != NULL ) {
1301                         int i;
1302                         for ( i = 0; vrf->vrf_sub_any[i].bv_val != NULL; i++ ) {
1303                                 len = fstr->bv_len;
1304                                 filter_escape_value_x( &vrf->vrf_sub_any[i], &tmp,
1305                                         op->o_tmpmemctx );
1306
1307                                 fstr->bv_len += tmp.bv_len + 1;
1308                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val,
1309                                         fstr->bv_len + 1, op->o_tmpmemctx );
1310
1311                                 snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1312                                         /* "(attr=[init]*[any*]" */ "%s*)",
1313                                         tmp.bv_val );
1314                                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1315                         }
1316                 }
1317
1318                 if ( vrf->vrf_sub_final.bv_val != NULL ) {
1319                         len = fstr->bv_len;
1320
1321                         filter_escape_value_x( &vrf->vrf_sub_final, &tmp, op->o_tmpmemctx );
1322
1323                         fstr->bv_len += tmp.bv_len;
1324                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
1325                                 op->o_tmpmemctx );
1326
1327                         snprintf( &fstr->bv_val[len-1], tmp.bv_len+3,
1328                                 /* "(attr=[init*][any*]" */ "%s)",
1329                                 tmp.bv_val );
1330
1331                         ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1332                 }
1333
1334                 break;
1335
1336         case LDAP_FILTER_PRESENT:
1337                 fstr->bv_len = vrf->vrf_desc->ad_cname.bv_len +
1338                         STRLENOF("(=*)");
1339                 if ( undef ) fstr->bv_len++;
1340                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1341
1342                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
1343                         vrf->vrf_desc->ad_cname.bv_val );
1344                 break;
1345
1346         case LDAP_FILTER_EXT: {
1347                 struct berval ad;
1348                 filter_escape_value_x( &vrf->vrf_mr_value, &tmp, op->o_tmpmemctx );
1349
1350                 if ( vrf->vrf_mr_desc ) {
1351                         ad = vrf->vrf_mr_desc->ad_cname;
1352                 } else {
1353                         ad.bv_len = 0;
1354                         ad.bv_val = "";
1355                 }
1356
1357                 fstr->bv_len = ad.bv_len +
1358                         ( vrf->vrf_mr_dnattrs ? STRLENOF(":dn") : 0 ) +
1359                         ( vrf->vrf_mr_rule_text.bv_len
1360                                 ? vrf->vrf_mr_rule_text.bv_len+1 : 0 ) +
1361                         tmp.bv_len + STRLENOF("(:=)");
1362                 if ( undef ) fstr->bv_len++;
1363                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
1364
1365                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
1366                         ad.bv_val,
1367                         vrf->vrf_mr_dnattrs ? ":dn" : "",
1368                         vrf->vrf_mr_rule_text.bv_len ? ":" : "",
1369                         vrf->vrf_mr_rule_text.bv_len ? vrf->vrf_mr_rule_text.bv_val : "",
1370                         tmp.bv_val );
1371
1372                 ber_memfree_x( tmp.bv_val, op->o_tmpmemctx );
1373                 } break;
1374
1375         case SLAPD_FILTER_COMPUTED:
1376                 ber_str2bv_x(
1377                         vrf->vrf_result == LDAP_COMPARE_FALSE ? "(?=false)" :
1378                         vrf->vrf_result == LDAP_COMPARE_TRUE ? "(?=true)" :
1379                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1380                                 ? "(?=undefined)" : "(?=error)",
1381                         vrf->vrf_result == LDAP_COMPARE_FALSE ? STRLENOF("(?=false)") :
1382                         vrf->vrf_result == LDAP_COMPARE_TRUE ? STRLENOF("(?=true)") :
1383                         vrf->vrf_result == SLAPD_COMPARE_UNDEFINED
1384                                 ? STRLENOF("(?=undefined)") : STRLENOF("(?=error)"),
1385                         1, fstr, op->o_tmpmemctx );
1386                 break;
1387
1388         default:
1389                 ber_str2bv_x( "(?=unknown)", STRLENOF("(?=unknown)"),
1390                         1, fstr, op->o_tmpmemctx );
1391                 break;
1392         }
1393 }