1 /* rwm.c - rewrite/remap operations */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2003-2004 The OpenLDAP Foundation.
6 * Portions Copyright 2003 Pierangelo Masarati.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted only as authorized by the OpenLDAP
13 * A copy of this license is available in the file LICENSE in the
14 * top-level directory of the distribution or, alternatively, at
15 * <http://www.OpenLDAP.org/license.html>.
28 rwm_op_dn_massage( Operation *op, SlapReply *rs, void *cookie )
30 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
31 struct ldaprwmap *rwmap =
32 (struct ldaprwmap *)on->on_bi.bi_private;
34 struct berval dn, ndn, mdn = { 0, NULL };
39 * Rewrite the bind dn if needed
45 dc.ctx = (char *)cookie;
47 dc.tofrom = ((int *)cookie)[0];
51 rc = rwm_dn_massage( &dc, &op->o_req_dn, &mdn );
52 if ( rc != LDAP_SUCCESS ) {
56 if ( mdn.bv_val == op->o_req_dn.bv_val ) {
60 rc = dnPrettyNormal( NULL, &mdn, &dn, &ndn, op->o_tmpmemctx );
61 if ( rc != LDAP_SUCCESS ) {
65 if ( mdn.bv_val != dn.bv_val ) {
66 ch_free( mdn.bv_val );
69 op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
70 op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
79 rwm_add( Operation *op, SlapReply *rs )
81 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
82 struct ldaprwmap *rwmap =
83 (struct ldaprwmap *)on->on_bi.bi_private;
88 Attribute **ap = NULL;
91 rc = rwm_op_dn_massage( op, rs, "addDn" );
94 rc = rwm_op_dn_massage( op, rs, &rc );
96 if ( rc != LDAP_SUCCESS ) {
97 op->o_bd->bd_info = (BackendInfo *)on->on_info;
98 send_ldap_error( op, rs, rc, "addDn massage error" );
102 /* Count number of attributes in entry */
103 isupdate = be_isupdate( op->o_bd, &op->o_ndn );
104 for ( i = 0, ap = &op->oq_add.rs_e->e_attrs; *ap; ) {
105 struct berval mapped;
108 if ( !isupdate && (*ap)->a_desc->ad_type->sat_no_user_mod ) {
112 rwm_map( &rwmap->rwm_at, &(*ap)->a_desc->ad_cname,
114 if ( mapped.bv_val == NULL || mapped.bv_val[0] == '\0' ) {
118 if ( (*ap)->a_desc->ad_type->sat_syntax
119 == slap_schema.si_syn_distinguishedName )
122 * FIXME: rewrite could fail; in this case
123 * the operation should give up, right?
125 #ifdef ENABLE_REWRITE
126 rc = rwm_dnattr_rewrite( op, rs, "addDn",
130 rc = rwm_dnattr_rewrite( op, rs, &rc,
142 /* FIXME: leaking attribute/values? */
146 ber_bvarray_free( a->a_vals );
147 ber_bvarray_free( a->a_nvals );
152 /* TODO: map attribute types, values of DN-valued attributes ... */
153 return SLAP_CB_CONTINUE;
157 rwm_bind( Operation *op, SlapReply *rs )
159 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
162 #ifdef ENABLE_REWRITE
163 rc = rwm_op_dn_massage( op, rs, "bindDn" );
166 rc = rwm_op_dn_massage( op, rs, &rc );
168 if ( rc != LDAP_SUCCESS ) {
169 op->o_bd->bd_info = (BackendInfo *)on->on_info;
170 send_ldap_error( op, rs, rc, "bindDn massage error" );
174 return SLAP_CB_CONTINUE;
178 rwm_compare( Operation *op, SlapReply *rs )
180 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
181 struct ldaprwmap *rwmap =
182 (struct ldaprwmap *)on->on_bi.bi_private;
185 struct berval mapped_at = { 0, NULL },
186 mapped_vals[2] = { { 0, NULL }, { 0, NULL } };
188 #ifdef ENABLE_REWRITE
189 rc = rwm_op_dn_massage( op, rs, "compareDn" );
192 rc = rwm_op_dn_massage( op, rs, &rc );
194 if ( rc != LDAP_SUCCESS ) {
195 op->o_bd->bd_info = (BackendInfo *)on->on_info;
196 send_ldap_error( op, rs, rc, "compareDn massage error" );
200 /* if the attribute is an objectClass, try to remap its value */
201 if ( op->orc_ava->aa_desc == slap_schema.si_ad_objectClass
202 || op->orc_ava->aa_desc == slap_schema.si_ad_structuralObjectClass )
204 rwm_map( &rwmap->rwm_oc, &op->orc_ava->aa_value,
205 &mapped_vals[0], RWM_MAP );
206 if ( mapped_vals[0].bv_val == NULL
207 || mapped_vals[0].bv_val[0] == '\0')
209 op->o_bd->bd_info = (BackendInfo *)on->on_info;
210 send_ldap_error( op, rs, LDAP_OTHER, "compare objectClass map error" );
213 } else if ( mapped_vals[0].bv_val != op->orc_ava->aa_value.bv_val ) {
214 free( op->orc_ava->aa_value.bv_val );
215 op->orc_ava->aa_value = mapped_vals[0];
217 mapped_at = op->orc_ava->aa_desc->ad_cname;
220 rwm_map( &rwmap->rwm_at,
221 &op->orc_ava->aa_desc->ad_cname,
224 if ( mapped_at.bv_val == NULL
225 || mapped_at.bv_val[0] == '\0')
227 op->o_bd->bd_info = (BackendInfo *)on->on_info;
228 send_ldap_error( op, rs, LDAP_OTHER, "compare attributeType map error" );
231 if ( op->orc_ava->aa_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName )
233 mapped_vals[0] = op->orc_ava->aa_value;
234 rc = rwm_dnattr_rewrite( op, rs, "compareAttrDN", mapped_vals );
235 if ( rc != LDAP_SUCCESS ) {
236 op->o_bd->bd_info = (BackendInfo *)on->on_info;
237 send_ldap_error( op, rs, rc, "compareAttrDN massage error" );
241 if ( mapped_vals[0].bv_val != op->orc_ava->aa_value.bv_val ) {
242 free( op->orc_ava->aa_value.bv_val );
243 op->orc_ava->aa_value = mapped_vals[0];
248 /* TODO: rewrite attribute types, values of DN-valued attributes ... */
249 return SLAP_CB_CONTINUE;
253 rwm_delete( Operation *op, SlapReply *rs )
255 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
258 #ifdef ENABLE_REWRITE
259 rc = rwm_op_dn_massage( op, rs, "deleteDn" );
262 rc = rwm_op_dn_massage( op, rs, &rc );
264 if ( rc != LDAP_SUCCESS ) {
265 op->o_bd->bd_info = (BackendInfo *)on->on_info;
266 send_ldap_error( op, rs, rc, "deleteDn massage error" );
270 return SLAP_CB_CONTINUE;
274 rwm_modify( Operation *op, SlapReply *rs )
276 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
279 #ifdef ENABLE_REWRITE
280 rc = rwm_op_dn_massage( op, rs, "modifyDn" );
283 rc = rwm_op_dn_massage( op, rs, &rc );
285 if ( rc != LDAP_SUCCESS ) {
286 op->o_bd->bd_info = (BackendInfo *)on->on_info;
287 send_ldap_error( op, rs, rc, "modifyDn massage error" );
291 /* TODO: rewrite attribute types, values of DN-valued attributes ... */
292 return SLAP_CB_CONTINUE;
296 rwm_modrdn( Operation *op, SlapReply *rs )
298 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
301 #ifdef ENABLE_REWRITE
302 rc = rwm_op_dn_massage( op, rs, "renameDn" );
305 rc = rwm_op_dn_massage( op, rs, &rc );
307 if ( rc != LDAP_SUCCESS ) {
308 op->o_bd->bd_info = (BackendInfo *)on->on_info;
309 send_ldap_error( op, rs, rc, "renameDn massage error" );
313 /* TODO: rewrite attribute types, values of DN-valued attributes ... */
314 return SLAP_CB_CONTINUE;
318 rwm_search( Operation *op, SlapReply *rs )
320 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
323 #ifdef ENABLE_REWRITE
324 rc = rwm_op_dn_massage( op, rs, "searchDn" );
327 rc = rwm_op_dn_massage( op, rs, &rc );
329 if ( rc != LDAP_SUCCESS ) {
330 op->o_bd->bd_info = (BackendInfo *)on->on_info;
331 send_ldap_error( op, rs, rc, "searchDn massage error" );
335 /* TODO: rewrite/map filter & attrs */
336 return SLAP_CB_CONTINUE;
340 rwm_extended( Operation *op, SlapReply *rs )
342 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
345 #ifdef ENABLE_REWRITE
346 rc = rwm_op_dn_massage( op, rs, "extendedDn" );
349 rc = rwm_op_dn_massage( op, rs, &rc );
351 if ( rc != LDAP_SUCCESS ) {
352 op->o_bd->bd_info = (BackendInfo *)on->on_info;
353 send_ldap_error( op, rs, rc, "extendedDn massage error" );
357 /* TODO: rewrite/map extended data ? ... */
362 rwm_matched( Operation *op, SlapReply *rs )
364 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
365 struct ldaprwmap *rwmap =
366 (struct ldaprwmap *)on->on_bi.bi_private;
368 struct berval dn, mdn;
371 if ( rs->sr_matched == NULL ) {
372 return SLAP_CB_CONTINUE;
376 #ifdef ENABLE_REWRITE
377 dc.conn = op->o_conn;
379 dc.ctx = "matchedDN";
384 ber_str2bv( rs->sr_matched, 0, 0, &dn );
385 rwm_dn_massage( &dc, &dn, &mdn );
387 if ( mdn.bv_val != dn.bv_val ) {
388 if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
389 ch_free( (void *)rs->sr_matched );
391 rs->sr_flags |= REP_MATCHED_MUSTBEFREED;
393 rs->sr_matched = mdn.bv_val;
396 return SLAP_CB_CONTINUE;
400 rwm_send_entry( Operation *op, SlapReply *rs )
402 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
403 struct ldaprwmap *rwmap =
404 (struct ldaprwmap *)on->on_bi.bi_private;
407 struct berval dn = { 0, NULL }, ndn = { 0, NULL };
409 int rc = SLAP_CB_CONTINUE;
411 assert( rs->sr_entry );
416 * Rewrite the dn of the result, if needed
419 #ifdef ENABLE_REWRITE
420 dc.conn = op->o_conn;
422 dc.ctx = "searchResult";
427 if ( rwm_dn_massage( &dc, &e->e_name, &dn ) ) {
431 if ( e->e_name.bv_val == dn.bv_val ) {
432 return SLAP_CB_CONTINUE;
436 * Note: this may fail if the target host(s) schema differs
437 * from the one known to the meta, and a DN with unknown
438 * attributes is returned.
440 if ( dnNormalize( 0, NULL, NULL, &dn, &ndn, NULL ) != LDAP_SUCCESS ) {
441 if ( dn.bv_val != e->e_name.bv_val ) {
442 ch_free( dn.bv_val );
444 rc = LDAP_INVALID_DN_SYNTAX;
448 if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
453 rs->sr_flags |= ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
456 free( e->e_name.bv_val );
457 free( e->e_nname.bv_val );
464 /* TODO: map entry attribute types, objectclasses
465 * and dn-valued attribute values */
467 return SLAP_CB_CONTINUE;
470 if ( dn.bv_val && ( dn.bv_val != e->e_name.bv_val ) ) {
471 ch_free( dn.bv_val );
475 ch_free( ndn.bv_val );
490 #ifdef ENABLE_REWRITE
491 slap_overinst *on = (slap_overinst *) be->bd_info;
492 struct ldaprwmap *rwmap =
493 (struct ldaprwmap *)on->on_bi.bi_private;
495 return rewrite_parse( rwmap->rwm_rw,
496 fname, lineno, argc, argv );
498 #else /* !ENABLE_REWRITE */
499 fprintf( stderr, "%s: line %d: rewrite capabilities "
500 "are not enabled\n", fname, lineno );
501 #endif /* !ENABLE_REWRITE */
507 rwm_suffixmassage_config(
515 slap_overinst *on = (slap_overinst *) be->bd_info;
516 struct ldaprwmap *rwmap =
517 (struct ldaprwmap *)on->on_bi.bi_private;
519 struct berval bvnc, nvnc, pvnc, brnc, nrnc, prnc;
520 #ifdef ENABLE_REWRITE
522 #endif /* ENABLE_REWRITE */
527 * suffixmassage <suffix> <massaged suffix>
529 * the <suffix> field must be defined as a valid suffix
530 * (or suffixAlias?) for the current database;
531 * the <massaged suffix> shouldn't have already been
532 * defined as a valid suffix or suffixAlias for the
536 fprintf( stderr, "%s: line %d: syntax is"
537 " \"suffixMassage <suffix>"
538 " <massaged suffix>\"\n",
543 ber_str2bv( argv[1], 0, 0, &bvnc );
544 if ( dnPrettyNormal( NULL, &bvnc, &pvnc, &nvnc, NULL ) != LDAP_SUCCESS ) {
545 fprintf( stderr, "%s: line %d: suffix DN %s is invalid\n",
546 fname, lineno, bvnc.bv_val );
550 ber_str2bv( argv[2], 0, 0, &brnc );
551 if ( dnPrettyNormal( NULL, &brnc, &prnc, &nrnc, NULL ) != LDAP_SUCCESS ) {
552 fprintf( stderr, "%s: line %d: suffix DN %s is invalid\n",
553 fname, lineno, brnc.bv_val );
559 #ifdef ENABLE_REWRITE
561 * The suffix massaging is emulated
562 * by means of the rewrite capabilities
564 rc = rwm_suffix_massage_config( rwmap->rwm_rw,
565 &pvnc, &nvnc, &prnc, &nrnc );
573 #else /* !ENABLE_REWRITE */
574 ber_bvarray_add( &rwmap->rwm_suffix_massage, &pvnc );
575 ber_bvarray_add( &rwmap->rwm_suffix_massage, &nvnc );
577 ber_bvarray_add( &rwmap->rwm_suffix_massage, &prnc );
578 ber_bvarray_add( &rwmap->rwm_suffix_massage, &nrnc );
579 #endif /* !ENABLE_REWRITE */
593 slap_overinst *on = (slap_overinst *) be->bd_info;
594 struct ldaprwmap *rwmap =
595 (struct ldaprwmap *)on->on_bi.bi_private;
597 /* objectclass/attribute mapping */
598 return rwm_map_config( &rwmap->rwm_oc,
600 fname, lineno, argc, argv );
604 rwm_response( Operation *op, SlapReply *rs )
608 if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
609 return rwm_send_entry( op, rs );
612 switch( op->o_tag ) {
615 case LDAP_REQ_DELETE:
616 case LDAP_REQ_MODRDN:
617 case LDAP_REQ_MODIFY:
618 case LDAP_REQ_COMPARE:
619 case LDAP_REQ_SEARCH:
620 case LDAP_REQ_EXTENDED:
621 rc = rwm_matched( op, rs );
624 rc = SLAP_CB_CONTINUE;
642 if ( strncasecmp( argv[0], "rewrite", sizeof("rewrite") - 1) == 0 ) {
643 rc = rwm_rw_config( be, fname, lineno, argc, argv );
645 } else if (strcasecmp( argv[0], "map" ) == 0 ) {
646 rc = rwm_m_config( be, fname, lineno, argc, argv );
648 } else if (strcasecmp( argv[0], "suffixmassage" ) == 0 ) {
649 rc = rwm_suffixmassage_config( be, fname, lineno, argc, argv );
652 rc = SLAP_CONF_UNKNOWN;
663 slap_overinst *on = (slap_overinst *) be->bd_info;
664 struct ldapmapping *mapping = NULL;
665 struct ldaprwmap *rwmap;
667 rwmap = (struct ldaprwmap *)ch_malloc(sizeof(struct ldaprwmap));
668 memset(rwmap, 0, sizeof(struct ldaprwmap));
670 #ifdef ENABLE_REWRITE
671 rwmap->rwm_rw = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
672 if ( rwmap->rwm_rw == NULL ) {
680 /* this rewriteContext by default must be null;
681 * rules can be added if required */
682 rargv[ 0 ] = "rewriteContext";
683 rargv[ 1 ] = "searchFilter";
685 rewrite_parse( rwmap->rwm_rw, "<suffix massage>", 1, 2, rargv );
687 rargv[ 0 ] = "rewriteContext";
688 rargv[ 1 ] = "default";
690 rewrite_parse( rwmap->rwm_rw, "<suffix massage>", 2, 2, rargv );
693 #endif /* ENABLE_REWRITE */
695 rwm_map_init( &rwmap->rwm_oc, &mapping );
696 rwm_map_init( &rwmap->rwm_at, &mapping );
698 on->on_bi.bi_private = (void *)rwmap;
708 slap_overinst *on = (slap_overinst *) be->bd_info;
711 if ( on->on_bi.bi_private ) {
712 struct ldaprwmap *rwmap =
713 (struct ldaprwmap *)on->on_bi.bi_private;
715 #ifdef ENABLE_REWRITE
717 rewrite_info_delete( &rwmap->rwm_rw );
719 #else /* !ENABLE_REWRITE */
720 if ( rwmap->rwm_suffix_massage ) {
721 ber_bvarray_free( rwmap->rwm_suffix_massage );
723 #endif /* !ENABLE_REWRITE */
725 avl_free( rwmap->rwm_oc.remap, NULL );
726 avl_free( rwmap->rwm_oc.map, rwm_mapping_free );
727 avl_free( rwmap->rwm_at.remap, NULL );
728 avl_free( rwmap->rwm_at.map, rwm_mapping_free );
734 static slap_overinst rwm = { { NULL } };
739 memset( &rwm, 0, sizeof(slap_overinst) );
741 rwm.on_bi.bi_type = "rewrite-remap";
742 rwm.on_bi.bi_db_init = rwm_over_init;
743 rwm.on_bi.bi_db_config = rwm_config;
744 rwm.on_bi.bi_db_destroy = rwm_destroy;
746 rwm.on_bi.bi_op_bind = rwm_bind;
747 rwm.on_bi.bi_op_search = rwm_search;
748 rwm.on_bi.bi_op_compare = rwm_compare;
749 rwm.on_bi.bi_op_modify = rwm_modify;
750 rwm.on_bi.bi_op_modrdn = rwm_modrdn;
751 rwm.on_bi.bi_op_add = rwm_add;
752 rwm.on_bi.bi_op_delete = rwm_delete;
753 rwm.on_bi.bi_extended = rwm_extended;
755 rwm.on_response = rwm_response;
757 return overlay_register( &rwm );
760 #if SLAPD_OVER_RWM == SLAPD_MOD_DYNAMIC
761 int init_module(int argc, char *argv[]) {
766 #endif /* SLAPD_OVER_RWM */