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

   1 /* rwmmap.c - rewrite/mapping routines */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1999-2011 The OpenLDAP Foundation.
   6  * Portions Copyright 1999-2003 Howard Chu.
   7  * Portions Copyright 2000-2003 Pierangelo Masarati.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18 /* ACKNOWLEDGEMENTS:
  19  * This work was initially developed by the Howard Chu for inclusion
  20  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  21  * Masarati.
  22  */
  23
  24 #include "portable.h"
  25
  26 #ifdef SLAPD_OVER_RWM
  27
  28 #include <stdio.h>
  29
  30 #include <ac/string.h>
  31 #include <ac/socket.h>
  32
  33 #include "slap.h"
  34 #include "rwm.h"
  35
  36 #undef ldap_debug       /* silence a warning in ldap-int.h */
  37 #include "../../../libraries/libldap/ldap-int.h"
  38
  39 int
  40 rwm_mapping_cmp( const void *c1, const void *c2 )
  41 {
  42         struct ldapmapping *map1 = (struct ldapmapping *)c1;
  43         struct ldapmapping *map2 = (struct ldapmapping *)c2;
  44         int rc = map1->m_src.bv_len - map2->m_src.bv_len;
  45
  46         if ( rc ) {
  47                 return rc;
  48         }
  49
  50         return strcasecmp( map1->m_src.bv_val, map2->m_src.bv_val );
  51 }
  52
  53 int
  54 rwm_mapping_dup( void *c1, void *c2 )
  55 {
  56         struct ldapmapping *map1 = (struct ldapmapping *)c1;
  57         struct ldapmapping *map2 = (struct ldapmapping *)c2;
  58         int rc = map1->m_src.bv_len - map2->m_src.bv_len;
  59
  60         if ( rc ) {
  61                 return 0;
  62         }
  63
  64         return ( ( strcasecmp( map1->m_src.bv_val, map2->m_src.bv_val ) == 0 ) ? -1 : 0 );
  65 }
  66
  67 int
  68 rwm_map_init( struct ldapmap *lm, struct ldapmapping **m )
  69 {
  70         struct ldapmapping      *mapping;
  71         const char              *text;
  72         int                     rc;
  73
  74         assert( m != NULL );
  75
  76         *m = NULL;
  77
  78         mapping = (struct ldapmapping *)ch_calloc( 2,
  79                         sizeof( struct ldapmapping ) );
  80         if ( mapping == NULL ) {
  81                 return LDAP_NO_MEMORY;
  82         }
  83
  84         /* NOTE: this is needed to make sure that
  85          *      rwm-map attribute *
  86          * does not  filter out all attributes including objectClass */
  87         rc = slap_str2ad( "objectClass", &mapping[0].m_src_ad, &text );
  88         if ( rc != LDAP_SUCCESS ) {
  89                 ch_free( mapping );
  90                 return rc;
  91         }
  92
  93         mapping[0].m_dst_ad = mapping[0].m_src_ad;
  94         ber_dupbv( &mapping[0].m_src, &mapping[0].m_src_ad->ad_cname );
  95         ber_dupbv( &mapping[0].m_dst, &mapping[0].m_src );
  96
  97         mapping[1].m_src = mapping[0].m_src;
  98         mapping[1].m_dst = mapping[0].m_dst;
  99         mapping[1].m_src_ad = mapping[0].m_src_ad;
 100         mapping[1].m_dst_ad = mapping[1].m_src_ad;
 101
 102         avl_insert( &lm->map, (caddr_t)&mapping[0],
 103                         rwm_mapping_cmp, rwm_mapping_dup );
 104         avl_insert( &lm->remap, (caddr_t)&mapping[1],
 105                         rwm_mapping_cmp, rwm_mapping_dup );
 106
 107         *m = mapping;
 108
 109         return rc;
 110 }
 111
 112 int
 113 rwm_mapping( struct ldapmap *map, struct berval *s, struct ldapmapping **m, int remap )
 114 {
 115         Avlnode *tree;
 116         struct ldapmapping fmapping;
 117
 118         if ( map == NULL ) {
 119                 return 0;
 120         }
 121
 122         assert( m != NULL );
 123
 124         /* let special attrnames slip through (ITS#5760) */
 125         if ( bvmatch( s, slap_bv_no_attrs )
 126                 || bvmatch( s, slap_bv_all_user_attrs )
 127                 || bvmatch( s, slap_bv_all_operational_attrs ) )
 128         {
 129                 *m = NULL;
 130                 return 0;
 131         }
 132
 133         if ( remap == RWM_REMAP ) {
 134                 tree = map->remap;
 135
 136         } else {
 137                 tree = map->map;
 138         }
 139
 140         fmapping.m_src = *s;
 141         *m = (struct ldapmapping *)avl_find( tree, (caddr_t)&fmapping,
 142                         rwm_mapping_cmp );
 143
 144         if ( *m == NULL ) {
 145                 return map->drop_missing;
 146         }
 147
 148         return 0;
 149 }
 150
 151 void
 152 rwm_map( struct ldapmap *map, struct berval *s, struct berval *bv, int remap )
 153 {
 154         struct ldapmapping *mapping;
 155
 156         /* map->map may be NULL when mapping is configured,
 157          * but map->remap can't */
 158         if ( map->remap == NULL ) {
 159                 *bv = *s;
 160                 return;
 161         }
 162
 163         BER_BVZERO( bv );
 164         ( void )rwm_mapping( map, s, &mapping, remap );
 165         if ( mapping != NULL ) {
 166                 if ( !BER_BVISNULL( &mapping->m_dst ) ) {
 167                         *bv = mapping->m_dst;
 168                 }
 169                 return;
 170         }
 171
 172         if ( !map->drop_missing ) {
 173                 *bv = *s;
 174         }
 175 }
 176
 177 /*
 178  * Map attribute names in place
 179  */
 180 int
 181 rwm_map_attrnames(
 182         Operation       *op,
 183         struct ldapmap  *at_map,
 184         struct ldapmap  *oc_map,
 185         AttributeName   *an,
 186         AttributeName   **anp,
 187         int             remap )
 188 {
 189         int             i, j, x;
 190
 191         assert( anp != NULL );
 192
 193         *anp = NULL;
 194
 195         if ( an == NULL && op->o_bd->be_extra_anlist == NULL ) {
 196                 return LDAP_SUCCESS;
 197         }
 198
 199         i = 0;
 200         if ( an != NULL ) {
 201                 for ( i = 0; !BER_BVISNULL( &an[i].an_name ); i++ )
 202                         /* just count */ ;
 203         }
 204
 205         x = 0;
 206         if ( op->o_bd->be_extra_anlist ) {
 207                 for ( ; !BER_BVISNULL( &op->o_bd->be_extra_anlist[x].an_name ); x++ )
 208                         /* just count */ ;
 209         }
 210
 211         assert( i > 0 || x > 0 );
 212         *anp = op->o_tmpalloc( ( i + x + 1 )* sizeof( AttributeName ),
 213                 op->o_tmpmemctx );
 214         if ( *anp == NULL ) {
 215                 return LDAP_NO_MEMORY;
 216         }
 217
 218         for ( i = 0, j = 0; !BER_BVISNULL( &an[i].an_name ); i++ ) {
 219                 struct ldapmapping      *m;
 220                 int                     at_drop_missing = 0,
 221                                         oc_drop_missing = 0;
 222
 223                 if ( an[i].an_desc ) {
 224                         if ( !at_map ) {
 225                                 /* FIXME: better leave as is? */
 226                                 continue;
 227                         }
 228
 229                         at_drop_missing = rwm_mapping( at_map, &an[i].an_name, &m, remap );
 230                         if ( at_drop_missing || ( m && BER_BVISNULL( &m->m_dst ) ) ) {
 231                                 continue;
 232                         }
 233
 234                         if ( !m ) {
 235                                 (*anp)[j] = an[i];
 236                                 j++;
 237                                 continue;
 238                         }
 239
 240                         (*anp)[j] = an[i];
 241                         if ( remap == RWM_MAP ) {
 242                                 (*anp)[j].an_name = m->m_dst;
 243                                 (*anp)[j].an_desc = m->m_dst_ad;
 244                         } else {
 245                                 (*anp)[j].an_name = m->m_src;
 246                                 (*anp)[j].an_desc = m->m_src_ad;
 247
 248                         }
 249
 250                         j++;
 251                         continue;
 252
 253                 } else if ( an[i].an_oc ) {
 254                         if ( !oc_map ) {
 255                                 /* FIXME: better leave as is? */
 256                                 continue;
 257                         }
 258
 259                         oc_drop_missing = rwm_mapping( oc_map, &an[i].an_name, &m, remap );
 260
 261                         if ( oc_drop_missing || ( m && BER_BVISNULL( &m->m_dst ) ) ) {
 262                                 continue;
 263                         }
 264
 265                         if ( !m ) {
 266                                 (*anp)[j] = an[i];
 267                                 j++;
 268                                 continue;
 269                         }
 270
 271                         (*anp)[j] = an[i];
 272                         if ( remap == RWM_MAP ) {
 273                                 (*anp)[j].an_name = m->m_dst;
 274                                 (*anp)[j].an_oc = m->m_dst_oc;
 275                         } else {
 276                                 (*anp)[j].an_name = m->m_src;
 277                                 (*anp)[j].an_oc = m->m_src_oc;
 278                         }
 279
 280                 } else {
 281                         at_drop_missing = rwm_mapping( at_map, &an[i].an_name, &m, remap );
 282
 283                         if ( at_drop_missing || !m ) {
 284                                 oc_drop_missing = rwm_mapping( oc_map, &an[i].an_name, &m, remap );
 285
 286                                 /* if both at_map and oc_map required to drop missing,
 287                                  * then do it */
 288                                 if ( oc_drop_missing && at_drop_missing ) {
 289                                         continue;
 290                                 }
 291
 292                                 /* if no oc_map mapping was found and at_map required
 293                                  * to drop missing, then do it; otherwise, at_map wins
 294                                  * and an is considered an attr and is left unchanged */
 295                                 if ( !m ) {
 296                                         if ( at_drop_missing ) {
 297                                                 continue;
 298                                         }
 299                                         (*anp)[j] = an[i];
 300                                         j++;
 301                                         continue;
 302                                 }
 303
 304                                 if ( BER_BVISNULL( &m->m_dst ) ) {
 305                                         continue;
 306                                 }
 307
 308                                 (*anp)[j] = an[i];
 309                                 if ( remap == RWM_MAP ) {
 310                                         (*anp)[j].an_name = m->m_dst;
 311                                         (*anp)[j].an_oc = m->m_dst_oc;
 312                                 } else {
 313                                         (*anp)[j].an_name = m->m_src;
 314                                         (*anp)[j].an_oc = m->m_src_oc;
 315                                 }
 316                                 j++;
 317                                 continue;
 318                         }
 319
 320                         if ( !BER_BVISNULL( &m->m_dst ) ) {
 321                                 (*anp)[j] = an[i];
 322                                 if ( remap == RWM_MAP ) {
 323                                         (*anp)[j].an_name = m->m_dst;
 324                                         (*anp)[j].an_desc = m->m_dst_ad;
 325                                 } else {
 326                                         (*anp)[j].an_name = m->m_src;
 327                                         (*anp)[j].an_desc = m->m_src_ad;
 328                                 }
 329                                 j++;
 330                                 continue;
 331                         }
 332                 }
 333         }
 334
 335         if ( op->o_bd->be_extra_anlist != NULL ) {
 336                 /* we assume be_extra_anlist are already mapped */
 337                 for ( x = 0; !BER_BVISNULL( &op->o_bd->be_extra_anlist[x].an_name ); x++ ) {
 338                         BER_BVZERO( &(*anp)[j].an_name );
 339                         if ( op->o_bd->be_extra_anlist[x].an_desc &&
 340                                 ad_inlist( op->o_bd->be_extra_anlist[x].an_desc, *anp ) )
 341                         {
 342                                 continue;
 343                         }
 344
 345                         (*anp)[j] = op->o_bd->be_extra_anlist[x];
 346                         j++;
 347                 }
 348         }
 349
 350         if ( j == 0 && ( i != 0 || x != 0 ) ) {
 351                 memset( &(*anp)[0], 0, sizeof( AttributeName ) );
 352                 (*anp)[0].an_name = *slap_bv_no_attrs;
 353                 j = 1;
 354         }
 355         memset( &(*anp)[j], 0, sizeof( AttributeName ) );
 356
 357         return LDAP_SUCCESS;
 358 }
 359
 360 #if 0 /* unused! */
 361 int
 362 rwm_map_attrs(
 363         struct ldapmap  *at_map,
 364         AttributeName   *an,
 365         int             remap,
 366         char            ***mapped_attrs )
 367 {
 368         int i, j;
 369         char **na;
 370
 371         if ( an == NULL ) {
 372                 *mapped_attrs = NULL;
 373                 return LDAP_SUCCESS;
 374         }
 375
 376         for ( i = 0; !BER_BVISNULL( &an[ i ].an_name ); i++ )
 377                 /* count'em */ ;
 378
 379         na = (char **)ch_calloc( i + 1, sizeof( char * ) );
 380         if ( na == NULL ) {
 381                 *mapped_attrs = NULL;
 382                 return LDAP_NO_MEMORY;
 383         }
 384
 385         for ( i = j = 0; !BER_BVISNULL( &an[i].an_name ); i++ ) {
 386                 struct ldapmapping      *mapping;
 387
 388                 if ( rwm_mapping( at_map, &an[i].an_name, &mapping, remap ) ) {
 389                         continue;
 390                 }
 391
 392                 if ( !mapping ) {
 393                         na[ j++ ] = an[ i ].an_name.bv_val;
 394
 395                 } else if ( !BER_BVISNULL( &mapping->m_dst ) ) {
 396                         na[ j++ ] = mapping->m_dst.bv_val;
 397                 }
 398         }
 399
 400         if ( j == 0 && i != 0 ) {
 401                 na[ j++ ] = LDAP_NO_ATTRS;
 402         }
 403
 404         na[ j ] = NULL;
 405
 406         *mapped_attrs = na;
 407
 408         return LDAP_SUCCESS;
 409 }
 410 #endif
 411
 412 static int
 413 map_attr_value(
 414         dncookie                *dc,
 415         AttributeDescription    **adp,
 416         struct berval           *mapped_attr,
 417         struct berval           *value,
 418         struct berval           *mapped_value,
 419         int                     remap,
 420         void                    *memctx )
 421 {
 422         struct berval           vtmp = BER_BVNULL;
 423         int                     freeval = 0;
 424         AttributeDescription    *ad = *adp;
 425         struct ldapmapping      *mapping = NULL;
 426
 427         rwm_mapping( &dc->rwmap->rwm_at, &ad->ad_cname, &mapping, remap );
 428         if ( mapping == NULL ) {
 429                 if ( dc->rwmap->rwm_at.drop_missing ) {
 430                         return -1;
 431                 }
 432
 433                 *mapped_attr = ad->ad_cname;
 434
 435         } else {
 436                 *mapped_attr = mapping->m_dst;
 437         }
 438
 439         if ( value != NULL ) {
 440                 assert( mapped_value != NULL );
 441
 442                 if ( ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName
 443                                 || ( mapping != NULL && mapping->m_dst_ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) )
 444                 {
 445                         dncookie        fdc = *dc;
 446                         int             rc;
 447
 448                         fdc.ctx = "searchFilterAttrDN";
 449
 450                         vtmp = *value;
 451                         rc = rwm_dn_massage_normalize( &fdc, value, &vtmp );
 452                         switch ( rc ) {
 453                         case LDAP_SUCCESS:
 454                                 if ( vtmp.bv_val != value->bv_val ) {
 455                                         freeval = 1;
 456                                 }
 457                                 break;
 458
 459                         case LDAP_UNWILLING_TO_PERFORM:
 460                         case LDAP_OTHER:
 461                         default:
 462                                 return -1;
 463                         }
 464
 465                 } else if ( ad->ad_type->sat_equality->smr_usage & SLAP_MR_MUTATION_NORMALIZER ) {
 466                         if ( ad->ad_type->sat_equality->smr_normalize(
 467                                 (SLAP_MR_DENORMALIZE|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX),
 468                                 NULL, NULL, value, &vtmp, memctx ) )
 469                         {
 470                                 return -1;
 471                         }
 472                         freeval = 2;
 473
 474                 } else if ( ad == slap_schema.si_ad_objectClass
 475                                 || ad == slap_schema.si_ad_structuralObjectClass )
 476                 {
 477                         rwm_map( &dc->rwmap->rwm_oc, value, &vtmp, remap );
 478                         if ( BER_BVISNULL( &vtmp ) || BER_BVISEMPTY( &vtmp ) ) {
 479                                 vtmp = *value;
 480                         }
 481
 482                 } else {
 483                         vtmp = *value;
 484                 }
 485
 486                 filter_escape_value_x( &vtmp, mapped_value, memctx );
 487
 488                 switch ( freeval ) {
 489                 case 1:
 490                         ch_free( vtmp.bv_val );
 491                         break;
 492
 493                 case 2:
 494                         ber_memfree_x( vtmp.bv_val, memctx );
 495                         break;
 496                 }
 497         }
 498
 499         if ( mapping != NULL ) {
 500                 assert( mapping->m_dst_ad != NULL );
 501                 *adp = mapping->m_dst_ad;
 502         }
 503
 504         return 0;
 505 }
 506
 507 static int
 508 rwm_int_filter_map_rewrite(
 509         Operation               *op,
 510         dncookie                *dc,
 511         Filter                  *f,
 512         struct berval           *fstr )
 513 {
 514         int             i;
 515         Filter          *p;
 516         AttributeDescription *ad;
 517         struct berval   atmp,
 518                         vtmp,
 519                         *tmp;
 520         static struct berval
 521                         /* better than nothing... */
 522                         ber_bvfalse = BER_BVC( "(!(objectClass=*))" ),
 523                         ber_bvtf_false = BER_BVC( "(|)" ),
 524                         /* better than nothing... */
 525                         ber_bvtrue = BER_BVC( "(objectClass=*)" ),
 526                         ber_bvtf_true = BER_BVC( "(&)" ),
 527 #if 0
 528                         /* no longer needed; preserved for completeness */
 529                         ber_bvundefined = BER_BVC( "(?=undefined)" ),
 530 #endif
 531                         ber_bverror = BER_BVC( "(?=error)" ),
 532                         ber_bvunknown = BER_BVC( "(?=unknown)" ),
 533                         ber_bvnone = BER_BVC( "(?=none)" );
 534         ber_len_t       len;
 535
 536         assert( fstr != NULL );
 537         BER_BVZERO( fstr );
 538
 539         if ( f == NULL ) {
 540                 ber_dupbv_x( fstr, &ber_bvnone, op->o_tmpmemctx );
 541                 return LDAP_OTHER;
 542         }
 543
 544 #if 0
 545         /* ITS#6814: give the caller a chance to use undefined filters */
 546         if ( f->f_choice & SLAPD_FILTER_UNDEFINED ) {
 547                 goto computed;
 548         }
 549 #endif
 550
 551         switch ( f->f_choice & SLAPD_FILTER_MASK ) {
 552         case LDAP_FILTER_EQUALITY:
 553                 ad = f->f_av_desc;
 554                 if ( map_attr_value( dc, &ad, &atmp,
 555                         &f->f_av_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 556                 {
 557                         goto computed;
 558                 }
 559
 560                 fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(=)" );
 561                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 562
 563                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
 564                         atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 565
 566                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 567                 break;
 568
 569         case LDAP_FILTER_GE:
 570                 ad = f->f_av_desc;
 571                 if ( map_attr_value( dc, &ad, &atmp,
 572                         &f->f_av_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 573                 {
 574                         goto computed;
 575                 }
 576
 577                 fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(>=)" );
 578                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 579
 580                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
 581                         atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 582
 583                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 584                 break;
 585
 586         case LDAP_FILTER_LE:
 587                 ad = f->f_av_desc;
 588                 if ( map_attr_value( dc, &ad, &atmp,
 589                         &f->f_av_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 590                 {
 591                         goto computed;
 592                 }
 593
 594                 fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(<=)" );
 595                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 596
 597                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
 598                         atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 599
 600                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 601                 break;
 602
 603         case LDAP_FILTER_APPROX:
 604                 ad = f->f_av_desc;
 605                 if ( map_attr_value( dc, &ad, &atmp,
 606                         &f->f_av_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 607                 {
 608                         goto computed;
 609                 }
 610
 611                 fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(~=)" );
 612                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 613
 614                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
 615                         atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 616
 617                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 618                 break;
 619
 620         case LDAP_FILTER_SUBSTRINGS:
 621                 ad = f->f_sub_desc;
 622                 if ( map_attr_value( dc, &ad, &atmp,
 623                         NULL, NULL, RWM_MAP, op->o_tmpmemctx ) )
 624                 {
 625                         goto computed;
 626                 }
 627
 628                 /* cannot be a DN ... */
 629
 630                 fstr->bv_len = atmp.bv_len + STRLENOF( "(=*)" );
 631                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 632
 633                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 634                         atmp.bv_val );
 635
 636                 if ( !BER_BVISNULL( &f->f_sub_initial ) ) {
 637                         len = fstr->bv_len;
 638
 639                         filter_escape_value_x( &f->f_sub_initial, &vtmp, op->o_tmpmemctx );
 640
 641                         fstr->bv_len += vtmp.bv_len;
 642                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 643                                 op->o_tmpmemctx );
 644
 645                         snprintf( &fstr->bv_val[len - 2], vtmp.bv_len + 3,
 646                                 /* "(attr=" */ "%s*)",
 647                                 vtmp.bv_len ? vtmp.bv_val : "" );
 648
 649                         op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 650                 }
 651
 652                 if ( f->f_sub_any != NULL ) {
 653                         for ( i = 0; !BER_BVISNULL( &f->f_sub_any[i] ); i++ ) {
 654                                 len = fstr->bv_len;
 655                                 filter_escape_value_x( &f->f_sub_any[i], &vtmp,
 656                                         op->o_tmpmemctx );
 657
 658                                 fstr->bv_len += vtmp.bv_len + 1;
 659                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 660                                         op->o_tmpmemctx );
 661
 662                                 snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
 663                                         /* "(attr=[init]*[any*]" */ "%s*)",
 664                                         vtmp.bv_len ? vtmp.bv_val : "" );
 665                                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 666                         }
 667                 }
 668
 669                 if ( !BER_BVISNULL( &f->f_sub_final ) ) {
 670                         len = fstr->bv_len;
 671
 672                         filter_escape_value_x( &f->f_sub_final, &vtmp, op->o_tmpmemctx );
 673
 674                         fstr->bv_len += vtmp.bv_len;
 675                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 676                                 op->o_tmpmemctx );
 677
 678                         snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
 679                                 /* "(attr=[init*][any*]" */ "%s)",
 680                                 vtmp.bv_len ? vtmp.bv_val : "" );
 681
 682                         op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 683                 }
 684
 685                 break;
 686
 687         case LDAP_FILTER_PRESENT:
 688                 ad = f->f_desc;
 689                 if ( map_attr_value( dc, &ad, &atmp,
 690                         NULL, NULL, RWM_MAP, op->o_tmpmemctx ) )
 691                 {
 692                         goto computed;
 693                 }
 694
 695                 fstr->bv_len = atmp.bv_len + STRLENOF( "(=*)" );
 696                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 697
 698                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 699                         atmp.bv_val );
 700                 break;
 701
 702         case LDAP_FILTER_AND:
 703         case LDAP_FILTER_OR:
 704         case LDAP_FILTER_NOT:
 705                 fstr->bv_len = STRLENOF( "(%)" );
 706                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 707
 708                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
 709                         f->f_choice == LDAP_FILTER_AND ? '&' :
 710                         f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 711
 712                 for ( p = f->f_list; p != NULL; p = p->f_next ) {
 713                         int     rc;
 714
 715                         len = fstr->bv_len;
 716
 717                         rc = rwm_int_filter_map_rewrite( op, dc, p, &vtmp );
 718                         if ( rc != LDAP_SUCCESS ) {
 719                                 return rc;
 720                         }
 721
 722                         fstr->bv_len += vtmp.bv_len;
 723                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 724                                 op->o_tmpmemctx );
 725
 726                         snprintf( &fstr->bv_val[len-1], vtmp.bv_len + 2,
 727                                 /*"("*/ "%s)", vtmp.bv_len ? vtmp.bv_val : "" );
 728
 729                         op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 730                 }
 731
 732                 break;
 733
 734         case LDAP_FILTER_EXT: {
 735                 if ( f->f_mr_desc ) {
 736                         ad = f->f_mr_desc;
 737                         if ( map_attr_value( dc, &ad, &atmp,
 738                                 &f->f_mr_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 739                         {
 740                                 goto computed;
 741                         }
 742
 743                 } else {
 744                         BER_BVSTR( &atmp, "" );
 745                         filter_escape_value_x( &f->f_mr_value, &vtmp, op->o_tmpmemctx );
 746                 }
 747
 748
 749                 fstr->bv_len = atmp.bv_len +
 750                         ( f->f_mr_dnattrs ? STRLENOF( ":dn" ) : 0 ) +
 751                         ( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len + 1 : 0 ) +
 752                         vtmp.bv_len + STRLENOF( "(:=)" );
 753                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 754
 755                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
 756                         atmp.bv_val,
 757                         f->f_mr_dnattrs ? ":dn" : "",
 758                         !BER_BVISEMPTY( &f->f_mr_rule_text ) ? ":" : "",
 759                         !BER_BVISEMPTY( &f->f_mr_rule_text ) ? f->f_mr_rule_text.bv_val : "",
 760                         vtmp.bv_len ? vtmp.bv_val : "" );
 761                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 762                 break;
 763         }
 764
 765         case -1:
 766 computed:;
 767                 filter_free_x( op, f, 0 );
 768                 f->f_choice = SLAPD_FILTER_COMPUTED;
 769                 f->f_result = SLAPD_COMPARE_UNDEFINED;
 770                 /* fallthru */
 771
 772         case SLAPD_FILTER_COMPUTED:
 773                 switch ( f->f_result ) {
 774                 case LDAP_COMPARE_FALSE:
 775                 /* FIXME: treat UNDEFINED as FALSE */
 776                 case SLAPD_COMPARE_UNDEFINED:
 777                         if ( dc->rwmap->rwm_flags & RWM_F_SUPPORT_T_F ) {
 778                                 tmp = &ber_bvtf_false;
 779                                 break;
 780                         }
 781                         tmp = &ber_bvfalse;
 782                         break;
 783
 784                 case LDAP_COMPARE_TRUE:
 785                         if ( dc->rwmap->rwm_flags & RWM_F_SUPPORT_T_F ) {
 786                                 tmp = &ber_bvtf_true;
 787                                 break;
 788                         }
 789                         tmp = &ber_bvtrue;
 790                         break;
 791
 792                 default:
 793                         tmp = &ber_bverror;
 794                         break;
 795                 }
 796
 797                 ber_dupbv_x( fstr, tmp, op->o_tmpmemctx );
 798                 break;
 799
 800         default:
 801                 ber_dupbv_x( fstr, &ber_bvunknown, op->o_tmpmemctx );
 802                 break;
 803         }
 804
 805         return LDAP_SUCCESS;
 806 }
 807
 808 int
 809 rwm_filter_map_rewrite(
 810         Operation               *op,
 811         dncookie                *dc,
 812         Filter                  *f,
 813         struct berval           *fstr )
 814 {
 815         int             rc;
 816         dncookie        fdc;
 817         struct berval   ftmp;
 818
 819         rc = rwm_int_filter_map_rewrite( op, dc, f, fstr );
 820
 821         if ( rc != 0 ) {
 822                 return rc;
 823         }
 824
 825         fdc = *dc;
 826         ftmp = *fstr;
 827
 828         fdc.ctx = "searchFilter";
 829
 830         switch ( rewrite_session( fdc.rwmap->rwm_rw, fdc.ctx,
 831                                 ( !BER_BVISEMPTY( &ftmp ) ? ftmp.bv_val : "" ),
 832                                 fdc.conn, &fstr->bv_val ) )
 833         {
 834         case REWRITE_REGEXEC_OK:
 835                 if ( !BER_BVISNULL( fstr ) ) {
 836                         fstr->bv_len = strlen( fstr->bv_val );
 837
 838                 } else {
 839                         *fstr = ftmp;
 840                 }
 841
 842                 Debug( LDAP_DEBUG_ARGS,
 843                         "[rw] %s: \"%s\" -> \"%s\"\n",
 844                         fdc.ctx, ftmp.bv_val, fstr->bv_val );
 845                 if ( fstr->bv_val != ftmp.bv_val ) {
 846                         ber_bvreplace_x( &ftmp, fstr, op->o_tmpmemctx );
 847                         ch_free( fstr->bv_val );
 848                         *fstr = ftmp;
 849                 }
 850                 rc = LDAP_SUCCESS;
 851                 break;
 852
 853         case REWRITE_REGEXEC_UNWILLING:
 854                 if ( fdc.rs ) {
 855                         fdc.rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 856                         fdc.rs->sr_text = "Operation not allowed";
 857                 }
 858                 op->o_tmpfree( ftmp.bv_val, op->o_tmpmemctx );
 859                 rc = LDAP_UNWILLING_TO_PERFORM;
 860                 break;
 861
 862         case REWRITE_REGEXEC_ERR:
 863                 if ( fdc.rs ) {
 864                         fdc.rs->sr_err = LDAP_OTHER;
 865                         fdc.rs->sr_text = "Rewrite error";
 866                 }
 867                 op->o_tmpfree( ftmp.bv_val, op->o_tmpmemctx );
 868                 rc = LDAP_OTHER;
 869                 break;
 870         }
 871
 872         return rc;
 873 }
 874
 875 /*
 876  * I don't like this much, but we need two different
 877  * functions because different heap managers may be
 878  * in use in back-ldap/meta to reduce the amount of
 879  * calls to malloc routines, and some of the free()
 880  * routines may be macros with args
 881  */
 882 int
 883 rwm_referral_rewrite(
 884         Operation               *op,
 885         SlapReply               *rs,
 886         void                    *cookie,
 887         BerVarray               a_vals,
 888         BerVarray               *pa_nvals )
 889 {
 890         slap_overinst           *on = (slap_overinst *) op->o_bd->bd_info;
 891         struct ldaprwmap        *rwmap =
 892                         (struct ldaprwmap *)on->on_bi.bi_private;
 893
 894         int                     i, last;
 895
 896         dncookie                dc;
 897         struct berval           dn = BER_BVNULL,
 898                                 ndn = BER_BVNULL;
 899
 900         assert( a_vals != NULL );
 901
 902         /*
 903          * Rewrite the dn if needed
 904          */
 905         dc.rwmap = rwmap;
 906         dc.conn = op->o_conn;
 907         dc.rs = rs;
 908         dc.ctx = (char *)cookie;
 909
 910         for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ )
 911                 ;
 912         last--;
 913
 914         if ( pa_nvals != NULL ) {
 915                 if ( *pa_nvals == NULL ) {
 916                         *pa_nvals = ch_malloc( ( last + 2 ) * sizeof(struct berval) );
 917                         memset( *pa_nvals, 0, ( last + 2 ) * sizeof(struct berval) );
 918                 }
 919         }
 920
 921         for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
 922                 struct berval   olddn = BER_BVNULL,
 923                                 oldval;
 924                 int             rc;
 925                 LDAPURLDesc     *ludp;
 926
 927                 oldval = a_vals[i];
 928                 rc = ldap_url_parse( oldval.bv_val, &ludp );
 929                 if ( rc != LDAP_URL_SUCCESS ) {
 930                         /* leave attr untouched if massage failed */
 931                         if ( pa_nvals && BER_BVISNULL( &(*pa_nvals)[i] ) ) {
 932                                 ber_dupbv( &(*pa_nvals)[i], &oldval );
 933                         }
 934                         continue;
 935                 }
 936
 937                 /* FIXME: URLs like "ldap:///dc=suffix" if passed
 938                  * thru ldap_url_parse() and ldap_url_desc2str()
 939                  * get rewritten as "ldap:///dc=suffix??base";
 940                  * we don't want this to occur... */
 941                 if ( ludp->lud_scope == LDAP_SCOPE_BASE ) {
 942                         ludp->lud_scope = LDAP_SCOPE_DEFAULT;
 943                 }
 944
 945                 ber_str2bv( ludp->lud_dn, 0, 0, &olddn );
 946
 947                 dn = olddn;
 948                 if ( pa_nvals ) {
 949                         ndn = olddn;
 950                         rc = rwm_dn_massage_pretty_normalize( &dc, &olddn,
 951                                         &dn, &ndn );
 952                 } else {
 953                         rc = rwm_dn_massage_pretty( &dc, &olddn, &dn );
 954                 }
 955
 956                 switch ( rc ) {
 957                 case LDAP_UNWILLING_TO_PERFORM:
 958                         /*
 959                          * FIXME: need to check if it may be considered
 960                          * legal to trim values when adding/modifying;
 961                          * it should be when searching (e.g. ACLs).
 962                          */
 963                         ch_free( a_vals[i].bv_val );
 964                         if (last > i ) {
 965                                 a_vals[i] = a_vals[last];
 966                                 if ( pa_nvals ) {
 967                                         (*pa_nvals)[i] = (*pa_nvals)[last];
 968                                 }
 969                         }
 970                         BER_BVZERO( &a_vals[last] );
 971                         if ( pa_nvals ) {
 972                                 BER_BVZERO( &(*pa_nvals)[last] );
 973                         }
 974                         last--;
 975                         break;
 976
 977                 case LDAP_SUCCESS:
 978                         if ( !BER_BVISNULL( &dn ) && dn.bv_val != olddn.bv_val ) {
 979                                 char    *newurl;
 980
 981                                 ludp->lud_dn = dn.bv_val;
 982                                 newurl = ldap_url_desc2str( ludp );
 983                                 ludp->lud_dn = olddn.bv_val;
 984                                 ch_free( dn.bv_val );
 985                                 if ( newurl == NULL ) {
 986                                         /* FIXME: leave attr untouched
 987                                          * even if ldap_url_desc2str failed...
 988                                          */
 989                                         break;
 990                                 }
 991
 992                                 ber_str2bv( newurl, 0, 1, &a_vals[i] );
 993                                 ber_memfree( newurl );
 994
 995                                 if ( pa_nvals ) {
 996                                         ludp->lud_dn = ndn.bv_val;
 997                                         newurl = ldap_url_desc2str( ludp );
 998                                         ludp->lud_dn = olddn.bv_val;
 999                                         ch_free( ndn.bv_val );
1000                                         if ( newurl == NULL ) {
1001                                                 /* FIXME: leave attr untouched
1002                                                  * even if ldap_url_desc2str failed...
1003                                                  */
1004                                                 ch_free( a_vals[i].bv_val );
1005                                                 a_vals[i] = oldval;
1006                                                 break;
1007                                         }
1008
1009                                         if ( !BER_BVISNULL( &(*pa_nvals)[i] ) ) {
1010                                                 ch_free( (*pa_nvals)[i].bv_val );
1011                                         }
1012                                         ber_str2bv( newurl, 0, 1, &(*pa_nvals)[i] );
1013                                         ber_memfree( newurl );
1014                                 }
1015
1016                                 ch_free( oldval.bv_val );
1017                                 ludp->lud_dn = olddn.bv_val;
1018                         }
1019                         break;
1020
1021                 default:
1022                         /* leave attr untouched if massage failed */
1023                         if ( pa_nvals && BER_BVISNULL( &(*pa_nvals)[i] ) ) {
1024                                 ber_dupbv( &(*pa_nvals)[i], &a_vals[i] );
1025                         }
1026                         break;
1027                 }
1028                 ldap_free_urldesc( ludp );
1029         }
1030
1031         return 0;
1032 }
1033
1034 /*
1035  * I don't like this much, but we need two different
1036  * functions because different heap managers may be
1037  * in use in back-ldap/meta to reduce the amount of
1038  * calls to malloc routines, and some of the free()
1039  * routines may be macros with args
1040  */
1041 int
1042 rwm_dnattr_rewrite(
1043         Operation               *op,
1044         SlapReply               *rs,
1045         void                    *cookie,
1046         BerVarray               a_vals,
1047         BerVarray               *pa_nvals )
1048 {
1049         slap_overinst           *on = (slap_overinst *) op->o_bd->bd_info;
1050         struct ldaprwmap        *rwmap =
1051                         (struct ldaprwmap *)on->on_bi.bi_private;
1052
1053         int                     i, last;
1054
1055         dncookie                dc;
1056         struct berval           dn = BER_BVNULL,
1057                                 ndn = BER_BVNULL;
1058         BerVarray               in;
1059
1060         if ( a_vals ) {
1061                 in = a_vals;
1062
1063         } else {
1064                 if ( pa_nvals == NULL || *pa_nvals == NULL ) {
1065                         return LDAP_OTHER;
1066                 }
1067                 in = *pa_nvals;
1068         }
1069
1070         /*
1071          * Rewrite the dn if needed
1072          */
1073         dc.rwmap = rwmap;
1074         dc.conn = op->o_conn;
1075         dc.rs = rs;
1076         dc.ctx = (char *)cookie;
1077
1078         for ( last = 0; !BER_BVISNULL( &in[last] ); last++ );
1079         last--;
1080         if ( pa_nvals != NULL ) {
1081                 if ( *pa_nvals == NULL ) {
1082                         *pa_nvals = ch_malloc( ( last + 2 ) * sizeof(struct berval) );
1083                         memset( *pa_nvals, 0, ( last + 2 ) * sizeof(struct berval) );
1084                 }
1085         }
1086
1087         for ( i = 0; !BER_BVISNULL( &in[i] ); i++ ) {
1088                 int             rc;
1089
1090                 if ( a_vals ) {
1091                         dn = in[i];
1092                         if ( pa_nvals ) {
1093                                 ndn = (*pa_nvals)[i];
1094                                 rc = rwm_dn_massage_pretty_normalize( &dc, &in[i], &dn, &ndn );
1095                         } else {
1096                                 rc = rwm_dn_massage_pretty( &dc, &in[i], &dn );
1097                         }
1098                 } else {
1099                         ndn = in[i];
1100                         rc = rwm_dn_massage_normalize( &dc, &in[i], &ndn );
1101                 }
1102
1103                 switch ( rc ) {
1104                 case LDAP_UNWILLING_TO_PERFORM:
1105                         /*
1106                          * FIXME: need to check if it may be considered
1107                          * legal to trim values when adding/modifying;
1108                          * it should be when searching (e.g. ACLs).
1109                          */
1110                         ch_free( in[i].bv_val );
1111                         if (last > i ) {
1112                                 in[i] = in[last];
1113                                 if ( a_vals && pa_nvals ) {
1114                                         (*pa_nvals)[i] = (*pa_nvals)[last];
1115                                 }
1116                         }
1117                         BER_BVZERO( &in[last] );
1118                         if ( a_vals && pa_nvals ) {
1119                                 BER_BVZERO( &(*pa_nvals)[last] );
1120                         }
1121                         last--;
1122                         break;
1123
1124                 case LDAP_SUCCESS:
1125                         if ( a_vals ) {
1126                                 if ( !BER_BVISNULL( &dn ) && dn.bv_val != a_vals[i].bv_val ) {
1127                                         ch_free( a_vals[i].bv_val );
1128                                         a_vals[i] = dn;
1129
1130                                         if ( pa_nvals ) {
1131                                                 if ( !BER_BVISNULL( &(*pa_nvals)[i] ) ) {
1132                                                         ch_free( (*pa_nvals)[i].bv_val );
1133                                                 }
1134                                                 (*pa_nvals)[i] = ndn;
1135                                         }
1136                                 }
1137
1138                         } else {
1139                                 if ( !BER_BVISNULL( &ndn ) && ndn.bv_val != (*pa_nvals)[i].bv_val ) {
1140                                         ch_free( (*pa_nvals)[i].bv_val );
1141                                         (*pa_nvals)[i] = ndn;
1142                                 }
1143                         }
1144                         break;
1145
1146                 default:
1147                         /* leave attr untouched if massage failed */
1148                         if ( a_vals && pa_nvals && BER_BVISNULL( &(*pa_nvals)[i] ) ) {
1149                                 dnNormalize( 0, NULL, NULL, &a_vals[i], &(*pa_nvals)[i], NULL );
1150                         }
1151                         break;
1152                 }
1153         }
1154
1155         return 0;
1156 }
1157
1158 int
1159 rwm_referral_result_rewrite(
1160         dncookie                *dc,
1161         BerVarray               a_vals )
1162 {
1163         int             i, last;
1164
1165         for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ );
1166         last--;
1167
1168         for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
1169                 struct berval   dn,
1170                                 olddn = BER_BVNULL;
1171                 int             rc;
1172                 LDAPURLDesc     *ludp;
1173
1174                 rc = ldap_url_parse( a_vals[i].bv_val, &ludp );
1175                 if ( rc != LDAP_URL_SUCCESS ) {
1176                         /* leave attr untouched if massage failed */
1177                         continue;
1178                 }
1179
1180                 /* FIXME: URLs like "ldap:///dc=suffix" if passed
1181                  * thru ldap_url_parse() and ldap_url_desc2str()
1182                  * get rewritten as "ldap:///dc=suffix??base";
1183                  * we don't want this to occur... */
1184                 if ( ludp->lud_scope == LDAP_SCOPE_BASE ) {
1185                         ludp->lud_scope = LDAP_SCOPE_DEFAULT;
1186                 }
1187
1188                 ber_str2bv( ludp->lud_dn, 0, 0, &olddn );
1189
1190                 dn = olddn;
1191                 rc = rwm_dn_massage_pretty( dc, &olddn, &dn );
1192                 switch ( rc ) {
1193                 case LDAP_UNWILLING_TO_PERFORM:
1194                         /*
1195                          * FIXME: need to check if it may be considered
1196                          * legal to trim values when adding/modifying;
1197                          * it should be when searching (e.g. ACLs).
1198                          */
1199                         ch_free( a_vals[i].bv_val );
1200                         if ( last > i ) {
1201                                 a_vals[i] = a_vals[last];
1202                         }
1203                         BER_BVZERO( &a_vals[last] );
1204                         last--;
1205                         i--;
1206                         break;
1207
1208                 default:
1209                         /* leave attr untouched if massage failed */
1210                         if ( !BER_BVISNULL( &dn ) && olddn.bv_val != dn.bv_val ) {
1211                                 char    *newurl;
1212
1213                                 ludp->lud_dn = dn.bv_val;
1214                                 newurl = ldap_url_desc2str( ludp );
1215                                 if ( newurl == NULL ) {
1216                                         /* FIXME: leave attr untouched
1217                                          * even if ldap_url_desc2str failed...
1218                                          */
1219                                         break;
1220                                 }
1221
1222                                 ch_free( a_vals[i].bv_val );
1223                                 ber_str2bv( newurl, 0, 1, &a_vals[i] );
1224                                 ber_memfree( newurl );
1225                                 ludp->lud_dn = olddn.bv_val;
1226                         }
1227                         break;
1228                 }
1229
1230                 ldap_free_urldesc( ludp );
1231         }
1232
1233         return 0;
1234 }
1235
1236 int
1237 rwm_dnattr_result_rewrite(
1238         dncookie                *dc,
1239         BerVarray               a_vals,
1240         BerVarray               a_nvals )
1241 {
1242         int             i, last;
1243
1244         for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ );
1245         last--;
1246
1247         for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
1248                 struct berval   pdn, ndn = BER_BVNULL;
1249                 int             rc;
1250
1251                 pdn = a_vals[i];
1252                 rc = rwm_dn_massage_pretty_normalize( dc, &a_vals[i], &pdn, &ndn );
1253                 switch ( rc ) {
1254                 case LDAP_UNWILLING_TO_PERFORM:
1255                         /*
1256                          * FIXME: need to check if it may be considered
1257                          * legal to trim values when adding/modifying;
1258                          * it should be when searching (e.g. ACLs).
1259                          */
1260                         assert( a_vals[i].bv_val != a_nvals[i].bv_val );
1261                         ch_free( a_vals[i].bv_val );
1262                         ch_free( a_nvals[i].bv_val );
1263                         if ( last > i ) {
1264                                 a_vals[i] = a_vals[last];
1265                                 a_nvals[i] = a_nvals[last];
1266                         }
1267                         BER_BVZERO( &a_vals[last] );
1268                         BER_BVZERO( &a_nvals[last] );
1269                         last--;
1270                         break;
1271
1272                 default:
1273                         /* leave attr untouched if massage failed */
1274                         if ( !BER_BVISNULL( &pdn ) && a_vals[i].bv_val != pdn.bv_val ) {
1275                                 ch_free( a_vals[i].bv_val );
1276                                 a_vals[i] = pdn;
1277                         }
1278                         if ( !BER_BVISNULL( &ndn ) && a_nvals[i].bv_val != ndn.bv_val ) {
1279                                 ch_free( a_nvals[i].bv_val );
1280                                 a_nvals[i] = ndn;
1281                         }
1282                         break;
1283                 }
1284         }
1285
1286         return 0;
1287 }
1288
1289 void
1290 rwm_mapping_dst_free( void *v_mapping )
1291 {
1292         struct ldapmapping *mapping = v_mapping;
1293
1294         if ( BER_BVISEMPTY( &mapping[0].m_dst ) ) {
1295                 rwm_mapping_free( &mapping[ -1 ] );
1296         }
1297 }
1298
1299 void
1300 rwm_mapping_free( void *v_mapping )
1301 {
1302         struct ldapmapping *mapping = v_mapping;
1303
1304         if ( !BER_BVISNULL( &mapping[0].m_src ) ) {
1305                 ch_free( mapping[0].m_src.bv_val );
1306         }
1307
1308         if ( mapping[0].m_flags & RWMMAP_F_FREE_SRC ) {
1309                 if ( mapping[0].m_flags & RWMMAP_F_IS_OC ) {
1310                         if ( mapping[0].m_src_oc ) {
1311                                 ch_free( mapping[0].m_src_oc );
1312                         }
1313
1314                 } else {
1315                         if ( mapping[0].m_src_ad ) {
1316                                 ch_free( mapping[0].m_src_ad );
1317                         }
1318                 }
1319         }
1320
1321         if ( !BER_BVISNULL( &mapping[0].m_dst ) ) {
1322                 ch_free( mapping[0].m_dst.bv_val );
1323         }
1324
1325         if ( mapping[0].m_flags & RWMMAP_F_FREE_DST ) {
1326                 if ( mapping[0].m_flags & RWMMAP_F_IS_OC ) {
1327                         if ( mapping[0].m_dst_oc ) {
1328                                 ch_free( mapping[0].m_dst_oc );
1329                         }
1330
1331                 } else {
1332                         if ( mapping[0].m_dst_ad ) {
1333                                 ch_free( mapping[0].m_dst_ad );
1334                         }
1335                 }
1336         }
1337
1338         ch_free( mapping );
1339
1340 }
1341
1342 #endif /* SLAPD_OVER_RWM */