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 ( f->f_choice & SLAPD_FILTER_UNDEFINED ) {
 545                 goto computed;
 546         }
 547
 548         switch ( f->f_choice & SLAPD_FILTER_MASK ) {
 549         case LDAP_FILTER_EQUALITY:
 550                 ad = f->f_av_desc;
 551                 if ( map_attr_value( dc, &ad, &atmp,
 552                         &f->f_av_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 553                 {
 554                         goto computed;
 555                 }
 556
 557                 fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(=)" );
 558                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 559
 560                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
 561                         atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 562
 563                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 564                 break;
 565
 566         case LDAP_FILTER_GE:
 567                 ad = f->f_av_desc;
 568                 if ( map_attr_value( dc, &ad, &atmp,
 569                         &f->f_av_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 570                 {
 571                         goto computed;
 572                 }
 573
 574                 fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(>=)" );
 575                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 576
 577                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
 578                         atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 579
 580                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 581                 break;
 582
 583         case LDAP_FILTER_LE:
 584                 ad = f->f_av_desc;
 585                 if ( map_attr_value( dc, &ad, &atmp,
 586                         &f->f_av_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 587                 {
 588                         goto computed;
 589                 }
 590
 591                 fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(<=)" );
 592                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 593
 594                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
 595                         atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 596
 597                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 598                 break;
 599
 600         case LDAP_FILTER_APPROX:
 601                 ad = f->f_av_desc;
 602                 if ( map_attr_value( dc, &ad, &atmp,
 603                         &f->f_av_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 604                 {
 605                         goto computed;
 606                 }
 607
 608                 fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(~=)" );
 609                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 610
 611                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
 612                         atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 613
 614                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 615                 break;
 616
 617         case LDAP_FILTER_SUBSTRINGS:
 618                 ad = f->f_sub_desc;
 619                 if ( map_attr_value( dc, &ad, &atmp,
 620                         NULL, NULL, RWM_MAP, op->o_tmpmemctx ) )
 621                 {
 622                         goto computed;
 623                 }
 624
 625                 /* cannot be a DN ... */
 626
 627                 fstr->bv_len = atmp.bv_len + STRLENOF( "(=*)" );
 628                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 629
 630                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 631                         atmp.bv_val );
 632
 633                 if ( !BER_BVISNULL( &f->f_sub_initial ) ) {
 634                         len = fstr->bv_len;
 635
 636                         filter_escape_value_x( &f->f_sub_initial, &vtmp, op->o_tmpmemctx );
 637
 638                         fstr->bv_len += vtmp.bv_len;
 639                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 640                                 op->o_tmpmemctx );
 641
 642                         snprintf( &fstr->bv_val[len - 2], vtmp.bv_len + 3,
 643                                 /* "(attr=" */ "%s*)",
 644                                 vtmp.bv_len ? vtmp.bv_val : "" );
 645
 646                         op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 647                 }
 648
 649                 if ( f->f_sub_any != NULL ) {
 650                         for ( i = 0; !BER_BVISNULL( &f->f_sub_any[i] ); i++ ) {
 651                                 len = fstr->bv_len;
 652                                 filter_escape_value_x( &f->f_sub_any[i], &vtmp,
 653                                         op->o_tmpmemctx );
 654
 655                                 fstr->bv_len += vtmp.bv_len + 1;
 656                                 fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 657                                         op->o_tmpmemctx );
 658
 659                                 snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
 660                                         /* "(attr=[init]*[any*]" */ "%s*)",
 661                                         vtmp.bv_len ? vtmp.bv_val : "" );
 662                                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 663                         }
 664                 }
 665
 666                 if ( !BER_BVISNULL( &f->f_sub_final ) ) {
 667                         len = fstr->bv_len;
 668
 669                         filter_escape_value_x( &f->f_sub_final, &vtmp, op->o_tmpmemctx );
 670
 671                         fstr->bv_len += vtmp.bv_len;
 672                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 673                                 op->o_tmpmemctx );
 674
 675                         snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
 676                                 /* "(attr=[init*][any*]" */ "%s)",
 677                                 vtmp.bv_len ? vtmp.bv_val : "" );
 678
 679                         op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 680                 }
 681
 682                 break;
 683
 684         case LDAP_FILTER_PRESENT:
 685                 ad = f->f_desc;
 686                 if ( map_attr_value( dc, &ad, &atmp,
 687                         NULL, NULL, RWM_MAP, op->o_tmpmemctx ) )
 688                 {
 689                         goto computed;
 690                 }
 691
 692                 fstr->bv_len = atmp.bv_len + STRLENOF( "(=*)" );
 693                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 694
 695                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 696                         atmp.bv_val );
 697                 break;
 698
 699         case LDAP_FILTER_AND:
 700         case LDAP_FILTER_OR:
 701         case LDAP_FILTER_NOT:
 702                 fstr->bv_len = STRLENOF( "(%)" );
 703                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 128, op->o_tmpmemctx );
 704
 705                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
 706                         f->f_choice == LDAP_FILTER_AND ? '&' :
 707                         f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 708
 709                 for ( p = f->f_list; p != NULL; p = p->f_next ) {
 710                         int     rc;
 711
 712                         len = fstr->bv_len;
 713
 714                         rc = rwm_int_filter_map_rewrite( op, dc, p, &vtmp );
 715                         if ( rc != LDAP_SUCCESS ) {
 716                                 return rc;
 717                         }
 718
 719                         fstr->bv_len += vtmp.bv_len;
 720                         fstr->bv_val = op->o_tmprealloc( fstr->bv_val, fstr->bv_len + 1,
 721                                 op->o_tmpmemctx );
 722
 723                         snprintf( &fstr->bv_val[len-1], vtmp.bv_len + 2,
 724                                 /*"("*/ "%s)", vtmp.bv_len ? vtmp.bv_val : "" );
 725
 726                         op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 727                 }
 728
 729                 break;
 730
 731         case LDAP_FILTER_EXT: {
 732                 if ( f->f_mr_desc ) {
 733                         ad = f->f_mr_desc;
 734                         if ( map_attr_value( dc, &ad, &atmp,
 735                                 &f->f_mr_value, &vtmp, RWM_MAP, op->o_tmpmemctx ) )
 736                         {
 737                                 goto computed;
 738                         }
 739
 740                 } else {
 741                         BER_BVSTR( &atmp, "" );
 742                         filter_escape_value_x( &f->f_mr_value, &vtmp, op->o_tmpmemctx );
 743                 }
 744
 745
 746                 fstr->bv_len = atmp.bv_len +
 747                         ( f->f_mr_dnattrs ? STRLENOF( ":dn" ) : 0 ) +
 748                         ( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len + 1 : 0 ) +
 749                         vtmp.bv_len + STRLENOF( "(:=)" );
 750                 fstr->bv_val = op->o_tmpalloc( fstr->bv_len + 1, op->o_tmpmemctx );
 751
 752                 snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
 753                         atmp.bv_val,
 754                         f->f_mr_dnattrs ? ":dn" : "",
 755                         !BER_BVISEMPTY( &f->f_mr_rule_text ) ? ":" : "",
 756                         !BER_BVISEMPTY( &f->f_mr_rule_text ) ? f->f_mr_rule_text.bv_val : "",
 757                         vtmp.bv_len ? vtmp.bv_val : "" );
 758                 op->o_tmpfree( vtmp.bv_val, op->o_tmpmemctx );
 759                 break;
 760         }
 761
 762         case -1:
 763 computed:;
 764                 filter_free_x( op, f, 0 );
 765                 f->f_choice = SLAPD_FILTER_COMPUTED;
 766                 f->f_result = SLAPD_COMPARE_UNDEFINED;
 767                 /* fallthru */
 768
 769         case SLAPD_FILTER_COMPUTED:
 770                 switch ( f->f_result ) {
 771                 case LDAP_COMPARE_FALSE:
 772                 /* FIXME: treat UNDEFINED as FALSE */
 773                 case SLAPD_COMPARE_UNDEFINED:
 774                         if ( dc->rwmap->rwm_flags & RWM_F_SUPPORT_T_F ) {
 775                                 tmp = &ber_bvtf_false;
 776                                 break;
 777                         }
 778                         tmp = &ber_bvfalse;
 779                         break;
 780
 781                 case LDAP_COMPARE_TRUE:
 782                         if ( dc->rwmap->rwm_flags & RWM_F_SUPPORT_T_F ) {
 783                                 tmp = &ber_bvtf_true;
 784                                 break;
 785                         }
 786                         tmp = &ber_bvtrue;
 787                         break;
 788
 789                 default:
 790                         tmp = &ber_bverror;
 791                         break;
 792                 }
 793
 794                 ber_dupbv_x( fstr, tmp, op->o_tmpmemctx );
 795                 break;
 796
 797         default:
 798                 ber_dupbv_x( fstr, &ber_bvunknown, op->o_tmpmemctx );
 799                 break;
 800         }
 801
 802         return LDAP_SUCCESS;
 803 }
 804
 805 int
 806 rwm_filter_map_rewrite(
 807         Operation               *op,
 808         dncookie                *dc,
 809         Filter                  *f,
 810         struct berval           *fstr )
 811 {
 812         int             rc;
 813         dncookie        fdc;
 814         struct berval   ftmp;
 815
 816         rc = rwm_int_filter_map_rewrite( op, dc, f, fstr );
 817
 818         if ( rc != 0 ) {
 819                 return rc;
 820         }
 821
 822         fdc = *dc;
 823         ftmp = *fstr;
 824
 825         fdc.ctx = "searchFilter";
 826
 827         switch ( rewrite_session( fdc.rwmap->rwm_rw, fdc.ctx,
 828                                 ( !BER_BVISEMPTY( &ftmp ) ? ftmp.bv_val : "" ),
 829                                 fdc.conn, &fstr->bv_val ) )
 830         {
 831         case REWRITE_REGEXEC_OK:
 832                 if ( !BER_BVISNULL( fstr ) ) {
 833                         fstr->bv_len = strlen( fstr->bv_val );
 834
 835                 } else {
 836                         *fstr = ftmp;
 837                 }
 838
 839                 Debug( LDAP_DEBUG_ARGS,
 840                         "[rw] %s: \"%s\" -> \"%s\"\n",
 841                         fdc.ctx, ftmp.bv_val, fstr->bv_val );
 842                 if ( fstr->bv_val != ftmp.bv_val ) {
 843                         ber_bvreplace_x( &ftmp, fstr, op->o_tmpmemctx );
 844                         ch_free( fstr->bv_val );
 845                         *fstr = ftmp;
 846                 }
 847                 rc = LDAP_SUCCESS;
 848                 break;
 849
 850         case REWRITE_REGEXEC_UNWILLING:
 851                 if ( fdc.rs ) {
 852                         fdc.rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 853                         fdc.rs->sr_text = "Operation not allowed";
 854                 }
 855                 op->o_tmpfree( ftmp.bv_val, op->o_tmpmemctx );
 856                 rc = LDAP_UNWILLING_TO_PERFORM;
 857                 break;
 858
 859         case REWRITE_REGEXEC_ERR:
 860                 if ( fdc.rs ) {
 861                         fdc.rs->sr_err = LDAP_OTHER;
 862                         fdc.rs->sr_text = "Rewrite error";
 863                 }
 864                 op->o_tmpfree( ftmp.bv_val, op->o_tmpmemctx );
 865                 rc = LDAP_OTHER;
 866                 break;
 867         }
 868
 869         return rc;
 870 }
 871
 872 /*
 873  * I don't like this much, but we need two different
 874  * functions because different heap managers may be
 875  * in use in back-ldap/meta to reduce the amount of
 876  * calls to malloc routines, and some of the free()
 877  * routines may be macros with args
 878  */
 879 int
 880 rwm_referral_rewrite(
 881         Operation               *op,
 882         SlapReply               *rs,
 883         void                    *cookie,
 884         BerVarray               a_vals,
 885         BerVarray               *pa_nvals )
 886 {
 887         slap_overinst           *on = (slap_overinst *) op->o_bd->bd_info;
 888         struct ldaprwmap        *rwmap =
 889                         (struct ldaprwmap *)on->on_bi.bi_private;
 890
 891         int                     i, last;
 892
 893         dncookie                dc;
 894         struct berval           dn = BER_BVNULL,
 895                                 ndn = BER_BVNULL;
 896
 897         assert( a_vals != NULL );
 898
 899         /*
 900          * Rewrite the dn if needed
 901          */
 902         dc.rwmap = rwmap;
 903         dc.conn = op->o_conn;
 904         dc.rs = rs;
 905         dc.ctx = (char *)cookie;
 906
 907         for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ )
 908                 ;
 909         last--;
 910
 911         if ( pa_nvals != NULL ) {
 912                 if ( *pa_nvals == NULL ) {
 913                         *pa_nvals = ch_malloc( ( last + 2 ) * sizeof(struct berval) );
 914                         memset( *pa_nvals, 0, ( last + 2 ) * sizeof(struct berval) );
 915                 }
 916         }
 917
 918         for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
 919                 struct berval   olddn = BER_BVNULL,
 920                                 oldval;
 921                 int             rc;
 922                 LDAPURLDesc     *ludp;
 923
 924                 oldval = a_vals[i];
 925                 rc = ldap_url_parse( oldval.bv_val, &ludp );
 926                 if ( rc != LDAP_URL_SUCCESS ) {
 927                         /* leave attr untouched if massage failed */
 928                         if ( pa_nvals && BER_BVISNULL( &(*pa_nvals)[i] ) ) {
 929                                 ber_dupbv( &(*pa_nvals)[i], &oldval );
 930                         }
 931                         continue;
 932                 }
 933
 934                 /* FIXME: URLs like "ldap:///dc=suffix" if passed
 935                  * thru ldap_url_parse() and ldap_url_desc2str()
 936                  * get rewritten as "ldap:///dc=suffix??base";
 937                  * we don't want this to occur... */
 938                 if ( ludp->lud_scope == LDAP_SCOPE_BASE ) {
 939                         ludp->lud_scope = LDAP_SCOPE_DEFAULT;
 940                 }
 941
 942                 ber_str2bv( ludp->lud_dn, 0, 0, &olddn );
 943
 944                 dn = olddn;
 945                 if ( pa_nvals ) {
 946                         ndn = olddn;
 947                         rc = rwm_dn_massage_pretty_normalize( &dc, &olddn,
 948                                         &dn, &ndn );
 949                 } else {
 950                         rc = rwm_dn_massage_pretty( &dc, &olddn, &dn );
 951                 }
 952
 953                 switch ( rc ) {
 954                 case LDAP_UNWILLING_TO_PERFORM:
 955                         /*
 956                          * FIXME: need to check if it may be considered
 957                          * legal to trim values when adding/modifying;
 958                          * it should be when searching (e.g. ACLs).
 959                          */
 960                         ch_free( a_vals[i].bv_val );
 961                         if (last > i ) {
 962                                 a_vals[i] = a_vals[last];
 963                                 if ( pa_nvals ) {
 964                                         (*pa_nvals)[i] = (*pa_nvals)[last];
 965                                 }
 966                         }
 967                         BER_BVZERO( &a_vals[last] );
 968                         if ( pa_nvals ) {
 969                                 BER_BVZERO( &(*pa_nvals)[last] );
 970                         }
 971                         last--;
 972                         break;
 973
 974                 case LDAP_SUCCESS:
 975                         if ( !BER_BVISNULL( &dn ) && dn.bv_val != olddn.bv_val ) {
 976                                 char    *newurl;
 977
 978                                 ludp->lud_dn = dn.bv_val;
 979                                 newurl = ldap_url_desc2str( ludp );
 980                                 ludp->lud_dn = olddn.bv_val;
 981                                 ch_free( dn.bv_val );
 982                                 if ( newurl == NULL ) {
 983                                         /* FIXME: leave attr untouched
 984                                          * even if ldap_url_desc2str failed...
 985                                          */
 986                                         break;
 987                                 }
 988
 989                                 ber_str2bv( newurl, 0, 1, &a_vals[i] );
 990                                 ber_memfree( newurl );
 991
 992                                 if ( pa_nvals ) {
 993                                         ludp->lud_dn = ndn.bv_val;
 994                                         newurl = ldap_url_desc2str( ludp );
 995                                         ludp->lud_dn = olddn.bv_val;
 996                                         ch_free( ndn.bv_val );
 997                                         if ( newurl == NULL ) {
 998                                                 /* FIXME: leave attr untouched
 999                                                  * even if ldap_url_desc2str failed...
1000                                                  */
1001                                                 ch_free( a_vals[i].bv_val );
1002                                                 a_vals[i] = oldval;
1003                                                 break;
1004                                         }
1005
1006                                         if ( !BER_BVISNULL( &(*pa_nvals)[i] ) ) {
1007                                                 ch_free( (*pa_nvals)[i].bv_val );
1008                                         }
1009                                         ber_str2bv( newurl, 0, 1, &(*pa_nvals)[i] );
1010                                         ber_memfree( newurl );
1011                                 }
1012
1013                                 ch_free( oldval.bv_val );
1014                                 ludp->lud_dn = olddn.bv_val;
1015                         }
1016                         break;
1017
1018                 default:
1019                         /* leave attr untouched if massage failed */
1020                         if ( pa_nvals && BER_BVISNULL( &(*pa_nvals)[i] ) ) {
1021                                 ber_dupbv( &(*pa_nvals)[i], &a_vals[i] );
1022                         }
1023                         break;
1024                 }
1025                 ldap_free_urldesc( ludp );
1026         }
1027
1028         return 0;
1029 }
1030
1031 /*
1032  * I don't like this much, but we need two different
1033  * functions because different heap managers may be
1034  * in use in back-ldap/meta to reduce the amount of
1035  * calls to malloc routines, and some of the free()
1036  * routines may be macros with args
1037  */
1038 int
1039 rwm_dnattr_rewrite(
1040         Operation               *op,
1041         SlapReply               *rs,
1042         void                    *cookie,
1043         BerVarray               a_vals,
1044         BerVarray               *pa_nvals )
1045 {
1046         slap_overinst           *on = (slap_overinst *) op->o_bd->bd_info;
1047         struct ldaprwmap        *rwmap =
1048                         (struct ldaprwmap *)on->on_bi.bi_private;
1049
1050         int                     i, last;
1051
1052         dncookie                dc;
1053         struct berval           dn = BER_BVNULL,
1054                                 ndn = BER_BVNULL;
1055         BerVarray               in;
1056
1057         if ( a_vals ) {
1058                 in = a_vals;
1059
1060         } else {
1061                 if ( pa_nvals == NULL || *pa_nvals == NULL ) {
1062                         return LDAP_OTHER;
1063                 }
1064                 in = *pa_nvals;
1065         }
1066
1067         /*
1068          * Rewrite the dn if needed
1069          */
1070         dc.rwmap = rwmap;
1071         dc.conn = op->o_conn;
1072         dc.rs = rs;
1073         dc.ctx = (char *)cookie;
1074
1075         for ( last = 0; !BER_BVISNULL( &in[last] ); last++ );
1076         last--;
1077         if ( pa_nvals != NULL ) {
1078                 if ( *pa_nvals == NULL ) {
1079                         *pa_nvals = ch_malloc( ( last + 2 ) * sizeof(struct berval) );
1080                         memset( *pa_nvals, 0, ( last + 2 ) * sizeof(struct berval) );
1081                 }
1082         }
1083
1084         for ( i = 0; !BER_BVISNULL( &in[i] ); i++ ) {
1085                 int             rc;
1086
1087                 if ( a_vals ) {
1088                         dn = in[i];
1089                         if ( pa_nvals ) {
1090                                 ndn = (*pa_nvals)[i];
1091                                 rc = rwm_dn_massage_pretty_normalize( &dc, &in[i], &dn, &ndn );
1092                         } else {
1093                                 rc = rwm_dn_massage_pretty( &dc, &in[i], &dn );
1094                         }
1095                 } else {
1096                         ndn = in[i];
1097                         rc = rwm_dn_massage_normalize( &dc, &in[i], &ndn );
1098                 }
1099
1100                 switch ( rc ) {
1101                 case LDAP_UNWILLING_TO_PERFORM:
1102                         /*
1103                          * FIXME: need to check if it may be considered
1104                          * legal to trim values when adding/modifying;
1105                          * it should be when searching (e.g. ACLs).
1106                          */
1107                         ch_free( in[i].bv_val );
1108                         if (last > i ) {
1109                                 in[i] = in[last];
1110                                 if ( a_vals && pa_nvals ) {
1111                                         (*pa_nvals)[i] = (*pa_nvals)[last];
1112                                 }
1113                         }
1114                         BER_BVZERO( &in[last] );
1115                         if ( a_vals && pa_nvals ) {
1116                                 BER_BVZERO( &(*pa_nvals)[last] );
1117                         }
1118                         last--;
1119                         break;
1120
1121                 case LDAP_SUCCESS:
1122                         if ( a_vals ) {
1123                                 if ( !BER_BVISNULL( &dn ) && dn.bv_val != a_vals[i].bv_val ) {
1124                                         ch_free( a_vals[i].bv_val );
1125                                         a_vals[i] = dn;
1126
1127                                         if ( pa_nvals ) {
1128                                                 if ( !BER_BVISNULL( &(*pa_nvals)[i] ) ) {
1129                                                         ch_free( (*pa_nvals)[i].bv_val );
1130                                                 }
1131                                                 (*pa_nvals)[i] = ndn;
1132                                         }
1133                                 }
1134
1135                         } else {
1136                                 if ( !BER_BVISNULL( &ndn ) && ndn.bv_val != (*pa_nvals)[i].bv_val ) {
1137                                         ch_free( (*pa_nvals)[i].bv_val );
1138                                         (*pa_nvals)[i] = ndn;
1139                                 }
1140                         }
1141                         break;
1142
1143                 default:
1144                         /* leave attr untouched if massage failed */
1145                         if ( a_vals && pa_nvals && BER_BVISNULL( &(*pa_nvals)[i] ) ) {
1146                                 dnNormalize( 0, NULL, NULL, &a_vals[i], &(*pa_nvals)[i], NULL );
1147                         }
1148                         break;
1149                 }
1150         }
1151
1152         return 0;
1153 }
1154
1155 int
1156 rwm_referral_result_rewrite(
1157         dncookie                *dc,
1158         BerVarray               a_vals )
1159 {
1160         int             i, last;
1161
1162         for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ );
1163         last--;
1164
1165         for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
1166                 struct berval   dn,
1167                                 olddn = BER_BVNULL;
1168                 int             rc;
1169                 LDAPURLDesc     *ludp;
1170
1171                 rc = ldap_url_parse( a_vals[i].bv_val, &ludp );
1172                 if ( rc != LDAP_URL_SUCCESS ) {
1173                         /* leave attr untouched if massage failed */
1174                         continue;
1175                 }
1176
1177                 /* FIXME: URLs like "ldap:///dc=suffix" if passed
1178                  * thru ldap_url_parse() and ldap_url_desc2str()
1179                  * get rewritten as "ldap:///dc=suffix??base";
1180                  * we don't want this to occur... */
1181                 if ( ludp->lud_scope == LDAP_SCOPE_BASE ) {
1182                         ludp->lud_scope = LDAP_SCOPE_DEFAULT;
1183                 }
1184
1185                 ber_str2bv( ludp->lud_dn, 0, 0, &olddn );
1186
1187                 dn = olddn;
1188                 rc = rwm_dn_massage_pretty( dc, &olddn, &dn );
1189                 switch ( rc ) {
1190                 case LDAP_UNWILLING_TO_PERFORM:
1191                         /*
1192                          * FIXME: need to check if it may be considered
1193                          * legal to trim values when adding/modifying;
1194                          * it should be when searching (e.g. ACLs).
1195                          */
1196                         ch_free( a_vals[i].bv_val );
1197                         if ( last > i ) {
1198                                 a_vals[i] = a_vals[last];
1199                         }
1200                         BER_BVZERO( &a_vals[last] );
1201                         last--;
1202                         i--;
1203                         break;
1204
1205                 default:
1206                         /* leave attr untouched if massage failed */
1207                         if ( !BER_BVISNULL( &dn ) && olddn.bv_val != dn.bv_val ) {
1208                                 char    *newurl;
1209
1210                                 ludp->lud_dn = dn.bv_val;
1211                                 newurl = ldap_url_desc2str( ludp );
1212                                 if ( newurl == NULL ) {
1213                                         /* FIXME: leave attr untouched
1214                                          * even if ldap_url_desc2str failed...
1215                                          */
1216                                         break;
1217                                 }
1218
1219                                 ch_free( a_vals[i].bv_val );
1220                                 ber_str2bv( newurl, 0, 1, &a_vals[i] );
1221                                 ber_memfree( newurl );
1222                                 ludp->lud_dn = olddn.bv_val;
1223                         }
1224                         break;
1225                 }
1226
1227                 ldap_free_urldesc( ludp );
1228         }
1229
1230         return 0;
1231 }
1232
1233 int
1234 rwm_dnattr_result_rewrite(
1235         dncookie                *dc,
1236         BerVarray               a_vals,
1237         BerVarray               a_nvals )
1238 {
1239         int             i, last;
1240
1241         for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ );
1242         last--;
1243
1244         for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
1245                 struct berval   pdn, ndn = BER_BVNULL;
1246                 int             rc;
1247
1248                 pdn = a_vals[i];
1249                 rc = rwm_dn_massage_pretty_normalize( dc, &a_vals[i], &pdn, &ndn );
1250                 switch ( rc ) {
1251                 case LDAP_UNWILLING_TO_PERFORM:
1252                         /*
1253                          * FIXME: need to check if it may be considered
1254                          * legal to trim values when adding/modifying;
1255                          * it should be when searching (e.g. ACLs).
1256                          */
1257                         assert( a_vals[i].bv_val != a_nvals[i].bv_val );
1258                         ch_free( a_vals[i].bv_val );
1259                         ch_free( a_nvals[i].bv_val );
1260                         if ( last > i ) {
1261                                 a_vals[i] = a_vals[last];
1262                                 a_nvals[i] = a_nvals[last];
1263                         }
1264                         BER_BVZERO( &a_vals[last] );
1265                         BER_BVZERO( &a_nvals[last] );
1266                         last--;
1267                         break;
1268
1269                 default:
1270                         /* leave attr untouched if massage failed */
1271                         if ( !BER_BVISNULL( &pdn ) && a_vals[i].bv_val != pdn.bv_val ) {
1272                                 ch_free( a_vals[i].bv_val );
1273                                 a_vals[i] = pdn;
1274                         }
1275                         if ( !BER_BVISNULL( &ndn ) && a_nvals[i].bv_val != ndn.bv_val ) {
1276                                 ch_free( a_nvals[i].bv_val );
1277                                 a_nvals[i] = ndn;
1278                         }
1279                         break;
1280                 }
1281         }
1282
1283         return 0;
1284 }
1285
1286 void
1287 rwm_mapping_dst_free( void *v_mapping )
1288 {
1289         struct ldapmapping *mapping = v_mapping;
1290
1291         if ( BER_BVISEMPTY( &mapping[0].m_dst ) ) {
1292                 rwm_mapping_free( &mapping[ -1 ] );
1293         }
1294 }
1295
1296 void
1297 rwm_mapping_free( void *v_mapping )
1298 {
1299         struct ldapmapping *mapping = v_mapping;
1300
1301         if ( !BER_BVISNULL( &mapping[0].m_src ) ) {
1302                 ch_free( mapping[0].m_src.bv_val );
1303         }
1304
1305         if ( mapping[0].m_flags & RWMMAP_F_FREE_SRC ) {
1306                 if ( mapping[0].m_flags & RWMMAP_F_IS_OC ) {
1307                         if ( mapping[0].m_src_oc ) {
1308                                 ch_free( mapping[0].m_src_oc );
1309                         }
1310
1311                 } else {
1312                         if ( mapping[0].m_src_ad ) {
1313                                 ch_free( mapping[0].m_src_ad );
1314                         }
1315                 }
1316         }
1317
1318         if ( !BER_BVISNULL( &mapping[0].m_dst ) ) {
1319                 ch_free( mapping[0].m_dst.bv_val );
1320         }
1321
1322         if ( mapping[0].m_flags & RWMMAP_F_FREE_DST ) {
1323                 if ( mapping[0].m_flags & RWMMAP_F_IS_OC ) {
1324                         if ( mapping[0].m_dst_oc ) {
1325                                 ch_free( mapping[0].m_dst_oc );
1326                         }
1327
1328                 } else {
1329                         if ( mapping[0].m_dst_ad ) {
1330                                 ch_free( mapping[0].m_dst_ad );
1331                         }
1332                 }
1333         }
1334
1335         ch_free( mapping );
1336
1337 }
1338
1339 #endif /* SLAPD_OVER_RWM */