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

   1 /* filter.c - routines for parsing and dealing with filters */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/socket.h>
  13 #include <ac/string.h>
  14
  15 #include "slap.h"
  16
  17 static int      get_filter_list(
  18         Connection *conn,
  19         BerElement *ber,
  20         Filter **f,
  21         struct berval *fstr,
  22         const char **text );
  23
  24 static int      get_substring_filter(
  25         Connection *conn,
  26         BerElement *ber,
  27         Filter *f,
  28         struct berval *fstr,
  29         const char **text );
  30
  31 static int filter_escape_value(
  32         struct berval *in,
  33         struct berval *out );
  34
  35 int
  36 get_filter(
  37         Connection *conn,
  38         BerElement *ber,
  39         Filter **filt,
  40         struct berval *fstr,
  41         const char **text )
  42 {
  43         ber_tag_t       tag;
  44         ber_len_t       len;
  45         int             err;
  46         Filter          *f;
  47         struct berval   ftmp = { 0, NULL };
  48         struct berval escaped;
  49
  50 #ifdef NEW_LOGGING
  51         LDAP_LOG(( "filter", LDAP_LEVEL_ENTRY, "get_filter: conn %d\n",
  52                    conn->c_connid ));
  53 #else
  54         Debug( LDAP_DEBUG_FILTER, "begin get_filter\n", 0, 0, 0 );
  55 #endif
  56         /*
  57          * A filter looks like this coming in:
  58          *      Filter ::= CHOICE {
  59          *              and             [0]     SET OF Filter,
  60          *              or              [1]     SET OF Filter,
  61          *              not             [2]     Filter,
  62          *              equalityMatch   [3]     AttributeValueAssertion,
  63          *              substrings      [4]     SubstringFilter,
  64          *              greaterOrEqual  [5]     AttributeValueAssertion,
  65          *              lessOrEqual     [6]     AttributeValueAssertion,
  66          *              present         [7]     AttributeType,,
  67          *              approxMatch     [8]     AttributeValueAssertion
  68          *              extensibleMatch [9] MatchingRuleAssertion
  69          *      }
  70          *
  71          *      SubstringFilter ::= SEQUENCE {
  72          *              type               AttributeType,
  73          *              SEQUENCE OF CHOICE {
  74          *                      initial          [0] IA5String,
  75          *                      any              [1] IA5String,
  76          *                      final            [2] IA5String
  77          *              }
  78          *      }
  79          *
  80      *  MatchingRuleAssertion ::= SEQUENCE {
  81      *          matchingRule    [1] MatchingRuleId OPTIONAL,
  82      *          type            [2] AttributeDescription OPTIONAL,
  83      *          matchValue      [3] AssertionValue,
  84      *          dnAttributes    [4] BOOLEAN DEFAULT FALSE
  85          *      }
  86          *
  87          */
  88
  89         tag = ber_peek_tag( ber, &len );
  90
  91         if( tag == LBER_ERROR ) {
  92                 *text = "error decoding filter";
  93                 return SLAPD_DISCONNECT;
  94         }
  95
  96         f = (Filter *) ch_malloc( sizeof(Filter) );
  97         f->f_next = NULL;
  98
  99         err = LDAP_SUCCESS;
 100         *fstr = ftmp;
 101         f->f_choice = tag;
 102
 103         switch ( f->f_choice ) {
 104         case LDAP_FILTER_EQUALITY:
 105 #ifdef NEW_LOGGING
 106                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL2,
 107                            "get_filter: conn %d  EQUALITY\n", conn->c_connid ));
 108 #else
 109                 Debug( LDAP_DEBUG_FILTER, "EQUALITY\n", 0, 0, 0 );
 110 #endif
 111                 err = get_ava( ber, &f->f_ava, SLAP_MR_EQUALITY, text );
 112                 if ( err != LDAP_SUCCESS ) {
 113                         break;
 114                 }
 115
 116                 assert( f->f_ava != NULL );
 117
 118                 filter_escape_value( f->f_av_value, &escaped );
 119
 120                 fstr->bv_len = sizeof("(=)")-1
 121                         + f->f_av_desc->ad_cname.bv_len
 122                         + escaped.bv_len;
 123
 124                 fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 125
 126                 sprintf( fstr->bv_val, "(%s=%s)",
 127                         f->f_av_desc->ad_cname.bv_val,
 128                     escaped.bv_val );
 129
 130                 ber_memfree( escaped.bv_val );
 131                 break;
 132
 133         case LDAP_FILTER_SUBSTRINGS:
 134 #ifdef NEW_LOGGING
 135                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 136                            "get_filter: conn %d  SUBSTRINGS\n", conn->c_connid ));
 137 #else
 138                 Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n", 0, 0, 0 );
 139 #endif
 140                 err = get_substring_filter( conn, ber, f, fstr, text );
 141                 break;
 142
 143         case LDAP_FILTER_GE:
 144 #ifdef NEW_LOGGING
 145                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 146                            "get_filter: conn %d  GE\n", conn->c_connid ));
 147 #else
 148                 Debug( LDAP_DEBUG_FILTER, "GE\n", 0, 0, 0 );
 149 #endif
 150                 err = get_ava( ber, &f->f_ava, SLAP_MR_ORDERING, text );
 151                 if ( err != LDAP_SUCCESS ) {
 152                         break;
 153                 }
 154
 155                 filter_escape_value( f->f_av_value, &escaped );
 156
 157                 fstr->bv_len = sizeof("(>=)")-1
 158                         + f->f_av_desc->ad_cname.bv_len
 159                         + escaped.bv_len;
 160
 161                 fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 162
 163                 sprintf( fstr->bv_val, "(%s>=%s)",
 164                         f->f_av_desc->ad_cname.bv_val,
 165                     escaped.bv_val );
 166
 167                 ber_memfree( escaped.bv_val );
 168                 break;
 169
 170         case LDAP_FILTER_LE:
 171 #ifdef NEW_LOGGING
 172                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 173                            "get_filter: conn %d  LE\n", conn->c_connid ));
 174 #else
 175                 Debug( LDAP_DEBUG_FILTER, "LE\n", 0, 0, 0 );
 176 #endif
 177                 err = get_ava( ber, &f->f_ava, SLAP_MR_ORDERING, text );
 178                 if ( err != LDAP_SUCCESS ) {
 179                         break;
 180                 }
 181
 182
 183                 filter_escape_value( f->f_av_value, &escaped );
 184
 185                 fstr->bv_len = sizeof("(<=)")-1
 186                         + f->f_av_desc->ad_cname.bv_len
 187                         + escaped.bv_len;
 188
 189                 fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 190
 191                 sprintf( fstr->bv_val, "(%s<=%s)",
 192                         f->f_av_desc->ad_cname.bv_val,
 193                     escaped.bv_val );
 194
 195                 ber_memfree( escaped.bv_val );
 196                 break;
 197
 198         case LDAP_FILTER_PRESENT: {
 199                 struct berval type;
 200
 201 #ifdef NEW_LOGGING
 202                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 203                            "get_filter: conn %d PRESENT\n", conn->c_connid ));
 204 #else
 205                 Debug( LDAP_DEBUG_FILTER, "PRESENT\n", 0, 0, 0 );
 206 #endif
 207                 if ( ber_scanf( ber, "o", &type ) == LBER_ERROR ) {
 208                         err = SLAPD_DISCONNECT;
 209                         *text = "error decoding filter";
 210                         break;
 211                 }
 212
 213                 f->f_desc = NULL;
 214                 err = slap_bv2ad( &type, &f->f_desc, text );
 215
 216                 if( err != LDAP_SUCCESS ) {
 217                         /* unrecognized attribute description or other error */
 218                         f->f_choice = SLAPD_FILTER_COMPUTED;
 219                         f->f_result = LDAP_COMPARE_FALSE;
 220                         ber_str2bv("(unrecognized=*)",
 221                                 sizeof("(unrecognized=*)")-1, 1, fstr);
 222                         ch_free( type.bv_val );
 223                         err = LDAP_SUCCESS;
 224                         break;
 225                 }
 226
 227                 ch_free( type.bv_val );
 228
 229                 fstr->bv_len = sizeof("(=*)") - 1
 230                         + f->f_desc->ad_cname.bv_len;
 231                 fstr->bv_val = ch_malloc( fstr->bv_len + 1);
 232                 sprintf( fstr->bv_val, "(%s=*)",
 233                         f->f_desc->ad_cname.bv_val );
 234
 235                 } break;
 236
 237         case LDAP_FILTER_APPROX:
 238 #ifdef NEW_LOGGING
 239                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 240                            "get_filter: conn %d  APPROX\n", conn->c_connid ));
 241 #else
 242                 Debug( LDAP_DEBUG_FILTER, "APPROX\n", 0, 0, 0 );
 243 #endif
 244                 err = get_ava( ber, &f->f_ava, SLAP_MR_EQUALITY_APPROX, text );
 245                 if ( err != LDAP_SUCCESS ) {
 246                         break;
 247                 }
 248
 249                 filter_escape_value( f->f_av_value, &escaped );
 250
 251                 fstr->bv_len = sizeof("(~=)") - 1
 252                         + f->f_av_desc->ad_cname.bv_len
 253                         + escaped.bv_len;
 254                 fstr->bv_val = ch_malloc( fstr->bv_len + 1);
 255
 256                 sprintf( fstr->bv_val, "(%s~=%s)",
 257                         f->f_av_desc->ad_cname.bv_val,
 258                     escaped.bv_val );
 259
 260                 ber_memfree( escaped.bv_val );
 261                 break;
 262
 263         case LDAP_FILTER_AND:
 264 #ifdef NEW_LOGGING
 265                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 266                            "get_filter: conn %d  AND\n", conn->c_connid ));
 267 #else
 268                 Debug( LDAP_DEBUG_FILTER, "AND\n", 0, 0, 0 );
 269 #endif
 270                 err = get_filter_list( conn, ber, &f->f_and, &ftmp, text );
 271                 if ( err != LDAP_SUCCESS ) {
 272                         break;
 273                 }
 274                 fstr->bv_len = sizeof("(&)") - 1 + ftmp.bv_len;
 275                 fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 276                 sprintf( fstr->bv_val, "(&%s)",
 277                         ftmp.bv_len ? ftmp.bv_val : "" );
 278                 break;
 279
 280         case LDAP_FILTER_OR:
 281 #ifdef NEW_LOGGING
 282                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 283                            "get_filter: conn %d  OR\n", conn->c_connid  ));
 284 #else
 285                 Debug( LDAP_DEBUG_FILTER, "OR\n", 0, 0, 0 );
 286 #endif
 287                 err = get_filter_list( conn, ber, &f->f_and, &ftmp, text );
 288                 if ( err != LDAP_SUCCESS ) {
 289                         break;
 290                 }
 291                 fstr->bv_len = sizeof("(|)") - 1 + ftmp.bv_len;
 292                 fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 293                 sprintf( fstr->bv_val, "(|%s)",
 294                         ftmp.bv_len ? ftmp.bv_val : "" );
 295                 break;
 296
 297         case LDAP_FILTER_NOT:
 298 #ifdef NEW_LOGGING
 299                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 300                            "get_filter: conn %d  NOT\n", conn->c_connid ));
 301 #else
 302                 Debug( LDAP_DEBUG_FILTER, "NOT\n", 0, 0, 0 );
 303 #endif
 304                 (void) ber_skip_tag( ber, &len );
 305                 err = get_filter( conn, ber, &f->f_not, &ftmp, text );
 306                 if ( err != LDAP_SUCCESS ) {
 307                         break;
 308                 }
 309                 fstr->bv_len = sizeof("(!)") - 1 + ftmp.bv_len;
 310                 fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 311                 sprintf( fstr->bv_val, "(!%s)",
 312                         ftmp.bv_len ? ftmp.bv_val : "" );
 313                 break;
 314
 315         case LDAP_FILTER_EXT:
 316 #ifdef NEW_LOGGING
 317                 LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 318                            "get_filter: conn %d  EXTENSIBLE\n", conn->c_connid ));
 319 #else
 320                 Debug( LDAP_DEBUG_FILTER, "EXTENSIBLE\n", 0, 0, 0 );
 321 #endif
 322
 323                 err = get_mra( ber, &f->f_mra, text );
 324                 if ( err != LDAP_SUCCESS ) {
 325                         break;
 326                 }
 327
 328                 assert( f->f_mra != NULL );
 329
 330                 filter_escape_value( f->f_mr_value, &escaped );
 331
 332                 fstr->bv_len = sizeof("(:dn::=)") - 1
 333                         + (f->f_mr_desc ? f->f_mr_desc->ad_cname.bv_len : 0)
 334                         + f->f_mr_rule_text.bv_len
 335                         + escaped.bv_len;
 336
 337                 fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 338                 sprintf( fstr->bv_val, "(%s%s%s%s:=%s)",
 339                          (f->f_mr_desc ? f->f_mr_desc->ad_cname.bv_val : ""),
 340                          (f->f_mr_dnattrs ? ":dn" : ""),
 341                          (f->f_mr_rule_text.bv_len ? ":" : ""),
 342                          (f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_val : ""),
 343                          escaped.bv_val );
 344
 345                 ber_memfree( escaped.bv_val );
 346                 break;
 347
 348         default:
 349                 (void) ber_scanf( ber, "x" ); /* skip the element */
 350 #ifdef NEW_LOGGING
 351                 LDAP_LOG(( "filter", LDAP_LEVEL_ERR,
 352                            "get_filter: conn %d unknown filter type=%lu\n",
 353                            conn->c_connid, f->f_choice ));
 354 #else
 355                 Debug( LDAP_DEBUG_ANY, "get_filter: unknown filter type=%lu\n",
 356                        f->f_choice, 0, 0 );
 357 #endif
 358                 f->f_choice = SLAPD_FILTER_COMPUTED;
 359                 f->f_result = SLAPD_COMPARE_UNDEFINED;
 360                 ber_str2bv( "(undefined)", sizeof("(undefined)") - 1,
 361                         1, fstr );
 362                 break;
 363         }
 364
 365         free( ftmp.bv_val );
 366
 367         if ( err != LDAP_SUCCESS ) {
 368                 if ( fstr->bv_val != NULL ) {
 369                         free( fstr->bv_val );
 370                 }
 371
 372                 if( err != SLAPD_DISCONNECT ) {
 373                         /* ignore error */
 374                         f->f_choice = SLAPD_FILTER_COMPUTED;
 375                         f->f_result = SLAPD_COMPARE_UNDEFINED;
 376                         ber_str2bv( "(badfilter)", sizeof("(badfilter)") - 1,
 377                                 1, fstr );
 378                         err = LDAP_SUCCESS;
 379                         *filt = f;
 380
 381                 } else {
 382                         free(f);
 383                 }
 384         } else {
 385                 *filt = f;
 386         }
 387
 388 #ifdef NEW_LOGGING
 389         LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL2,
 390                 "get_filter: conn %d exit\n", conn->c_connid ));
 391 #else
 392         Debug( LDAP_DEBUG_FILTER, "end get_filter %d\n", err, 0, 0 );
 393 #endif
 394         return( err );
 395 }
 396
 397 static int
 398 get_filter_list( Connection *conn, BerElement *ber,
 399         Filter **f, struct berval *fstr,
 400         const char **text )
 401 {
 402         Filter          **new;
 403         int             err;
 404         ber_tag_t       tag;
 405         ber_len_t       len;
 406         char            *last;
 407         struct berval   ftmp;
 408
 409 #ifdef NEW_LOGGING
 410         LDAP_LOG(( "filter", LDAP_LEVEL_ENTRY,
 411                    "get_filter_list: conn %d start\n", conn->c_connid ));
 412 #else
 413         Debug( LDAP_DEBUG_FILTER, "begin get_filter_list\n", 0, 0, 0 );
 414 #endif
 415         new = f;
 416         for ( tag = ber_first_element( ber, &len, &last ); tag != LBER_DEFAULT;
 417             tag = ber_next_element( ber, &len, last ) )
 418         {
 419                 err = get_filter( conn, ber, new, &ftmp, text );
 420                 if ( err != LDAP_SUCCESS )
 421                         return( err );
 422
 423                 if ( !fstr->bv_len ) {
 424                         *fstr = ftmp;
 425                 } else {
 426                         int i = fstr->bv_len;
 427                         fstr->bv_len += ftmp.bv_len;
 428                         fstr->bv_val = ch_realloc( fstr->bv_val,
 429                                 fstr->bv_len + 1 );
 430                         strcpy( fstr->bv_val+i, ftmp.bv_val );
 431                         free( ftmp.bv_val );
 432                 }
 433                 new = &(*new)->f_next;
 434         }
 435         *new = NULL;
 436
 437 #ifdef NEW_LOGGING
 438         LDAP_LOG(( "filter", LDAP_LEVEL_ENTRY,
 439                    "get_filter_list: conn %d exit\n", conn->c_connid ));
 440 #else
 441         Debug( LDAP_DEBUG_FILTER, "end get_filter_list\n", 0, 0, 0 );
 442 #endif
 443         return( LDAP_SUCCESS );
 444 }
 445
 446 static int
 447 get_substring_filter(
 448     Connection  *conn,
 449     BerElement  *ber,
 450     Filter      *f,
 451     struct berval       *fstr,
 452         const char      **text
 453 )
 454 {
 455         ber_tag_t       tag;
 456         ber_len_t       len;
 457         ber_tag_t       rc;
 458         struct berval *value;
 459         struct berval escaped;
 460         char            *last;
 461         struct berval type;
 462         struct berval *nvalue;
 463         *text = "error decoding filter";
 464
 465 #ifdef NEW_LOGGING
 466         LDAP_LOG(( "filter", LDAP_LEVEL_ENTRY,
 467                    "get_substring_filter: conn %d  begin\n", conn->c_connid ));
 468 #else
 469         Debug( LDAP_DEBUG_FILTER, "begin get_substring_filter\n", 0, 0, 0 );
 470 #endif
 471         if ( ber_scanf( ber, "{o" /*}*/, &type ) == LBER_ERROR ) {
 472                 return SLAPD_DISCONNECT;
 473         }
 474
 475         f->f_sub = ch_calloc( 1, sizeof(SubstringsAssertion) );
 476         f->f_sub_desc = NULL;
 477         rc = slap_bv2ad( &type, &f->f_sub_desc, text );
 478
 479         ch_free( type.bv_val );
 480
 481         if( rc != LDAP_SUCCESS ) {
 482                 text = NULL;
 483                 ch_free( f->f_sub );
 484                 f->f_choice = SLAPD_FILTER_COMPUTED;
 485                 f->f_result = SLAPD_COMPARE_UNDEFINED;
 486                 ber_str2bv( "(undefined)", sizeof("(undefined)")-1, 1, fstr );
 487                 return LDAP_SUCCESS;
 488         }
 489
 490         f->f_sub_initial = NULL;
 491         f->f_sub_any = NULL;
 492         f->f_sub_final = NULL;
 493
 494         fstr->bv_len = sizeof("(=" /*)*/) - 1 +
 495                 f->f_sub_desc->ad_cname.bv_len;
 496         fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 497         sprintf( fstr->bv_val, "(%s=" /*)*/, f->f_sub_desc->ad_cname.bv_val );
 498
 499         for ( tag = ber_first_element( ber, &len, &last ); tag != LBER_DEFAULT;
 500             tag = ber_next_element( ber, &len, last ) )
 501         {
 502                 unsigned usage;
 503
 504                 rc = ber_scanf( ber, "O", &value );
 505                 if ( rc == LBER_ERROR ) {
 506                         rc = SLAPD_DISCONNECT;
 507                         goto return_error;
 508                 }
 509
 510                 if ( value == NULL || value->bv_len == 0 ) {
 511                         ber_bvfree( value );
 512                         rc = LDAP_INVALID_SYNTAX;
 513                         goto return_error;
 514                 }
 515
 516                 switch ( tag ) {
 517                 case LDAP_SUBSTRING_INITIAL:
 518                         usage = SLAP_MR_SUBSTR_INITIAL;
 519                         break;
 520
 521                 case LDAP_SUBSTRING_ANY:
 522                         usage = SLAP_MR_SUBSTR_ANY;
 523                         break;
 524
 525                 case LDAP_SUBSTRING_FINAL:
 526                         usage = SLAP_MR_SUBSTR_FINAL;
 527                         break;
 528
 529                 default:
 530                         rc = LDAP_PROTOCOL_ERROR;
 531
 532 #ifdef NEW_LOGGING
 533                         LDAP_LOG(( "filter", LDAP_LEVEL_ERR,
 534                                    "get_filter_substring: conn %d  unknown substring choice=%ld\n",
 535                                    conn->c_connid, (long)tag ));
 536 #else
 537                         Debug( LDAP_DEBUG_FILTER,
 538                                 "  unknown substring choice=%ld\n",
 539                                 (long) tag, 0, 0 );
 540 #endif
 541                         ber_bvfree( value );
 542                         goto return_error;
 543                 }
 544
 545                 rc = value_normalize( f->f_sub_desc, usage, value, &nvalue, text );
 546                 ber_bvfree( value );
 547
 548                 if( rc != LDAP_SUCCESS ) {
 549                         goto return_error;
 550                 }
 551
 552                 value = nvalue;
 553
 554                 rc = LDAP_PROTOCOL_ERROR;
 555
 556                 switch ( tag ) {
 557                 case LDAP_SUBSTRING_INITIAL:
 558 #ifdef NEW_LOGGING
 559                         LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 560                                    "get_substring_filter: conn %d  INITIAL\n",
 561                                    conn->c_connid ));
 562 #else
 563                         Debug( LDAP_DEBUG_FILTER, "  INITIAL\n", 0, 0, 0 );
 564 #endif
 565
 566                         if ( f->f_sub_initial != NULL
 567                                 || f->f_sub_any != NULL
 568                                 || f->f_sub_final != NULL )
 569                         {
 570                                 ber_bvfree( value );
 571                                 goto return_error;
 572                         }
 573
 574                         f->f_sub_initial = value;
 575
 576                         if( fstr->bv_val ) {
 577                                 int i = fstr->bv_len;
 578                                 filter_escape_value( value, &escaped );
 579                                 fstr->bv_len += escaped.bv_len;
 580                                 fstr->bv_val = ch_realloc( fstr->bv_val,
 581                                         fstr->bv_len + 1 );
 582                                 strcpy( fstr->bv_val+i, escaped.bv_val );
 583                                 ber_memfree( escaped.bv_val );
 584                         }
 585                         break;
 586
 587                 case LDAP_SUBSTRING_ANY:
 588 #ifdef NEW_LOGGING
 589                         LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 590                                    "get_substring_filter: conn %d  ANY\n",
 591                                    conn->c_connid ));
 592 #else
 593                         Debug( LDAP_DEBUG_FILTER, "  ANY\n", 0, 0, 0 );
 594 #endif
 595
 596                         if ( f->f_sub_final != NULL ) {
 597                                 ber_bvfree( value );
 598                                 goto return_error;
 599                         }
 600
 601                         if( ber_bvecadd( &f->f_sub_any, value ) < 0 ) {
 602                                 ber_bvfree( value );
 603                                 goto return_error;
 604                         }
 605
 606                         if( fstr->bv_val ) {
 607                                 int i = fstr->bv_len;
 608                                 filter_escape_value( value, &escaped );
 609                                 fstr->bv_len += escaped.bv_len + 2;
 610                                 fstr->bv_val = ch_realloc( fstr->bv_val,
 611                                         fstr->bv_len + 1 );
 612                                 strcpy( fstr->bv_val+i, "*" );
 613                                 strcpy( fstr->bv_val+i+1, escaped.bv_val );
 614                                 ber_memfree( escaped.bv_val );
 615                         }
 616                         break;
 617
 618                 case LDAP_SUBSTRING_FINAL:
 619 #ifdef NEW_LOGGING
 620                         LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
 621                                    "get_substring_filter: conn %d  FINAL\n",
 622                                    conn->c_connid ));
 623 #else
 624                         Debug( LDAP_DEBUG_FILTER, "  FINAL\n", 0, 0, 0 );
 625 #endif
 626
 627                         if ( f->f_sub_final != NULL ) {
 628                                 ber_bvfree( value );
 629                                 goto return_error;
 630                         }
 631
 632                         f->f_sub_final = value;
 633
 634                         if( fstr->bv_val ) {
 635                                 int i = fstr->bv_len;
 636                                 filter_escape_value( value, &escaped );
 637                                 fstr->bv_len += escaped.bv_len + 2;
 638                                 fstr->bv_val = ch_realloc( fstr->bv_val,
 639                                         fstr->bv_len + 1 );
 640                                 strcpy( fstr->bv_val+i, "*" );
 641                                 strcpy( fstr->bv_val+i+1, escaped.bv_val );
 642                                 ber_memfree( escaped.bv_val );
 643                         }
 644                         break;
 645
 646                 default:
 647 #ifdef NEW_LOGGING
 648                         LDAP_LOG(( "filter", LDAP_LEVEL_INFO,
 649                                    "get_substring_filter: conn %d  unknown substring type %ld\n",
 650                                    conn->c_connid, (long)tag ));
 651 #else
 652                         Debug( LDAP_DEBUG_FILTER,
 653                                 "  unknown substring type=%ld\n",
 654                                 (long) tag, 0, 0 );
 655 #endif
 656
 657                         ber_bvfree( value );
 658
 659 return_error:
 660 #ifdef NEW_LOGGING
 661                         LDAP_LOG(( "filter", LDAP_LEVEL_INFO,
 662                                    "get_substring_filter: conn %d  error %ld\n",
 663                                    conn->c_connid, (long)rc ));
 664 #else
 665                         Debug( LDAP_DEBUG_FILTER, "  error=%ld\n",
 666                                 (long) rc, 0, 0 );
 667 #endif
 668                         if( fstr->bv_val ) {
 669                                 free( fstr->bv_val );
 670                                 fstr->bv_val = NULL;
 671                                 fstr->bv_len = 0;
 672                         }
 673
 674                         ber_bvfree( f->f_sub_initial );
 675                         ber_bvecfree( f->f_sub_any );
 676                         ber_bvfree( f->f_sub_final );
 677                         ch_free( f->f_sub );
 678                         return rc;
 679                 }
 680         }
 681
 682         if( fstr->bv_val ) {
 683                 int i = fstr->bv_len;
 684                 fstr->bv_len += 3;
 685                 fstr->bv_val = ch_realloc( fstr->bv_val, fstr->bv_len + 3 );
 686                 if ( f->f_sub_final == NULL ) {
 687                         strcpy( fstr->bv_val+i, "*" );
 688                         i++;
 689                 }
 690                 strcpy( fstr->bv_val+i, /*(*/ ")" );
 691         }
 692
 693 #ifdef NEW_LOGGING
 694         LDAP_LOG(( "filter", LDAP_LEVEL_ENTRY,
 695                    "get_substring_filter: conn %d exit\n", conn->c_connid ));
 696 #else
 697         Debug( LDAP_DEBUG_FILTER, "end get_substring_filter\n", 0, 0, 0 );
 698 #endif
 699         return( LDAP_SUCCESS );
 700 }
 701
 702 void
 703 filter_free( Filter *f )
 704 {
 705         Filter  *p, *next;
 706
 707         if ( f == NULL ) {
 708                 return;
 709         }
 710
 711         switch ( f->f_choice ) {
 712         case LDAP_FILTER_PRESENT:
 713                 break;
 714
 715         case LDAP_FILTER_EQUALITY:
 716         case LDAP_FILTER_GE:
 717         case LDAP_FILTER_LE:
 718         case LDAP_FILTER_APPROX:
 719                 ava_free( f->f_ava, 1 );
 720                 break;
 721
 722         case LDAP_FILTER_SUBSTRINGS:
 723                 if ( f->f_sub_initial != NULL ) {
 724                         ber_bvfree( f->f_sub_initial );
 725                 }
 726                 ber_bvecfree( f->f_sub_any );
 727                 if ( f->f_sub_final != NULL ) {
 728                         ber_bvfree( f->f_sub_final );
 729                 }
 730                 ch_free( f->f_sub );
 731                 break;
 732
 733         case LDAP_FILTER_AND:
 734         case LDAP_FILTER_OR:
 735         case LDAP_FILTER_NOT:
 736                 for ( p = f->f_list; p != NULL; p = next ) {
 737                         next = p->f_next;
 738                         filter_free( p );
 739                 }
 740                 break;
 741
 742         case SLAPD_FILTER_COMPUTED:
 743                 break;
 744
 745         default:
 746 #ifdef NEW_LOGGING
 747                 LDAP_LOG(( "filter", LDAP_LEVEL_ERR,
 748                            "filter_free: unknown filter type %lu\n", f->f_choice ));
 749 #else
 750                 Debug( LDAP_DEBUG_ANY, "filter_free: unknown filter type=%lu\n",
 751                        f->f_choice, 0, 0 );
 752 #endif
 753                 break;
 754         }
 755
 756         free( f );
 757 }
 758
 759 #ifdef LDAP_DEBUG
 760 void
 761 filter_print( Filter *f )
 762 {
 763         int     i;
 764         Filter  *p;
 765         struct berval escaped;
 766
 767         if ( f == NULL ) {
 768                 fprintf( stderr, "No filter!" );
 769         }
 770
 771         switch ( f->f_choice ) {
 772         case LDAP_FILTER_EQUALITY:
 773                 filter_escape_value( f->f_av_value, &escaped );
 774                 fprintf( stderr, "(%s=%s)",
 775                         f->f_av_desc->ad_cname.bv_val,
 776                     escaped.bv_val );
 777                 ber_memfree( escaped.bv_val );
 778                 break;
 779
 780         case LDAP_FILTER_GE:
 781                 filter_escape_value( f->f_av_value, &escaped );
 782                 fprintf( stderr, "(%s>=%s)",
 783                         f->f_av_desc->ad_cname.bv_val,
 784                     escaped.bv_val );
 785                 ber_memfree( escaped.bv_val );
 786                 break;
 787
 788         case LDAP_FILTER_LE:
 789                 filter_escape_value( f->f_av_value, &escaped );
 790                 fprintf( stderr, "(%s<=%s)",
 791                         f->f_ava->aa_desc->ad_cname.bv_val,
 792                     escaped.bv_val );
 793                 ber_memfree( escaped.bv_val );
 794                 break;
 795
 796         case LDAP_FILTER_APPROX:
 797                 filter_escape_value( f->f_av_value, &escaped );
 798                 fprintf( stderr, "(%s~=%s)",
 799                         f->f_ava->aa_desc->ad_cname.bv_val,
 800                     escaped.bv_val );
 801                 ber_memfree( escaped.bv_val );
 802                 break;
 803
 804         case LDAP_FILTER_SUBSTRINGS:
 805                 fprintf( stderr, "(%s=" /*)*/,
 806                         f->f_sub_desc->ad_cname.bv_val );
 807                 if ( f->f_sub_initial != NULL ) {
 808                         filter_escape_value( f->f_sub_initial, &escaped );
 809                         fprintf( stderr, "%s",
 810                                 escaped.bv_val );
 811                         ber_memfree( escaped.bv_val );
 812                 }
 813                 if ( f->f_sub_any != NULL ) {
 814                         for ( i = 0; f->f_sub_any[i] != NULL; i++ ) {
 815                                 filter_escape_value( f->f_sub_any[i], &escaped );
 816                                 fprintf( stderr, "*%s",
 817                                         escaped.bv_val );
 818                                 ber_memfree( escaped.bv_val );
 819                         }
 820                 }
 821                 if ( f->f_sub_final != NULL ) {
 822                         filter_escape_value( f->f_sub_final, &escaped );
 823                         fprintf( stderr,
 824                                 "*%s", escaped.bv_val );
 825                         ber_memfree( escaped.bv_val );
 826                 }
 827                 fprintf( stderr, /*(*/ ")" );
 828                 break;
 829
 830         case LDAP_FILTER_PRESENT:
 831                 fprintf( stderr, "(%s=*)",
 832                         f->f_desc->ad_cname.bv_val );
 833                 break;
 834
 835         case LDAP_FILTER_AND:
 836         case LDAP_FILTER_OR:
 837         case LDAP_FILTER_NOT:
 838                 fprintf( stderr, "(%c" /*)*/,
 839                         f->f_choice == LDAP_FILTER_AND ? '&' :
 840                     f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 841                 for ( p = f->f_list; p != NULL; p = p->f_next ) {
 842                         filter_print( p );
 843                 }
 844                 fprintf( stderr, /*(*/ ")" );
 845                 break;
 846
 847         case SLAPD_FILTER_COMPUTED:
 848                 fprintf( stderr, "(?=%s)",
 849                         f->f_result == LDAP_COMPARE_FALSE ? "false" :
 850                         f->f_result == LDAP_COMPARE_TRUE ? "true" :
 851                         f->f_result == SLAPD_COMPARE_UNDEFINED ? "undefined" :
 852                         "error" );
 853                 break;
 854
 855         default:
 856                 fprintf( stderr, "(unknown-filter=%lu)", f->f_choice );
 857                 break;
 858         }
 859 }
 860
 861 #endif /* ldap_debug */
 862
 863 static int filter_escape_value(
 864         struct berval *in,
 865         struct berval *out )
 866 {
 867         ber_len_t i;
 868         assert( in );
 869         assert( out );
 870
 871         out->bv_val = (char *) ch_malloc( ( in->bv_len * 3 ) + 1 );
 872         out->bv_len = 0;
 873
 874         for( i=0; i < in->bv_len ; i++ ) {
 875                 if( FILTER_ESCAPE(in->bv_val[i]) ) {
 876                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_CHAR;
 877                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_HI( in->bv_val[i] );
 878                         out->bv_val[out->bv_len++] = SLAP_ESCAPE_LO( in->bv_val[i] );
 879                 } else {
 880                         out->bv_val[out->bv_len++] = in->bv_val[i];
 881                 }
 882         }
 883
 884         out->bv_val[out->bv_len] = '\0';
 885         return LDAP_SUCCESS;
 886 }