1 /* rwm.c - rewrite/remap operations */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2003-2005 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>.
24 #include <ac/string.h>
30 rwm_op_dn_massage( Operation *op, SlapReply *rs, void *cookie )
32 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
33 struct ldaprwmap *rwmap =
34 (struct ldaprwmap *)on->on_bi.bi_private;
36 struct berval dn = BER_BVNULL,
42 * Rewrite the dn if needed
48 dc.ctx = (char *)cookie;
49 #else /* ! ENABLE_REWRITE */
50 dc.tofrom = ((int *)cookie)[0];
52 #endif /* ! ENABLE_REWRITE */
54 /* NOTE: in those cases where only the ndn is available,
55 * and the caller sets op->o_req_dn = op->o_req_ndn,
56 * only rewrite the op->o_req_ndn and use it as
57 * op->o_req_dn as well */
59 if ( op->o_req_dn.bv_val != op->o_req_ndn.bv_val ) {
61 rc = rwm_dn_massage_pretty_normalize( &dc, &op->o_req_dn, &dn, &ndn );
63 rc = rwm_dn_massage_normalize( &dc, &op->o_req_ndn, &ndn );
66 if ( rc != LDAP_SUCCESS ) {
70 if ( ( op->o_req_dn.bv_val != op->o_req_ndn.bv_val && dn.bv_val == op->o_req_dn.bv_val )
71 || ndn.bv_val == op->o_req_ndn.bv_val )
76 op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
78 if ( op->o_req_dn.bv_val != op->o_req_ndn.bv_val ) {
79 op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
89 rwm_op_add( Operation *op, SlapReply *rs )
91 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
92 struct ldaprwmap *rwmap =
93 (struct ldaprwmap *)on->on_bi.bi_private;
97 Attribute **ap = NULL;
98 char *olddn = op->o_req_dn.bv_val;
100 #ifdef ENABLE_REWRITE
101 rc = rwm_op_dn_massage( op, rs, "addDN" );
102 #else /* ! ENABLE_REWRITE */
104 rc = rwm_op_dn_massage( op, rs, &rc );
105 #endif /* ! ENABLE_REWRITE */
106 if ( rc != LDAP_SUCCESS ) {
107 op->o_bd->bd_info = (BackendInfo *)on->on_info;
108 send_ldap_error( op, rs, rc, "addDN massage error" );
112 if ( olddn != op->o_req_dn.bv_val ) {
113 ch_free( op->ora_e->e_name.bv_val );
114 ch_free( op->ora_e->e_nname.bv_val );
116 ber_dupbv( &op->ora_e->e_name, &op->o_req_dn );
117 ber_dupbv( &op->ora_e->e_nname, &op->o_req_ndn );
120 /* Count number of attributes in entry */
121 for ( i = 0, ap = &op->oq_add.rs_e->e_attrs; *ap; ) {
122 struct berval mapped;
125 if ( (*ap)->a_desc->ad_type->sat_no_user_mod ) {
129 rwm_map( &rwmap->rwm_at, &(*ap)->a_desc->ad_cname,
131 if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
135 if ( (*ap)->a_desc->ad_type->sat_syntax
136 == slap_schema.si_syn_distinguishedName )
139 * FIXME: rewrite could fail; in this case
140 * the operation should give up, right?
142 #ifdef ENABLE_REWRITE
143 rc = rwm_dnattr_rewrite( op, rs, "addAttrDN",
145 (*ap)->a_nvals ? &(*ap)->a_nvals : NULL );
146 #else /* ! ENABLE_REWRITE */
148 rc = rwm_dnattr_rewrite( op, rs, &rc, (*ap)->a_vals,
149 (*ap)->a_nvals ? &(*ap)->a_nvals : NULL );
150 #endif /* ! ENABLE_REWRITE */
155 } else if ( (*ap)->a_desc == slap_schema.si_ad_ref ) {
156 #ifdef ENABLE_REWRITE
157 rc = rwm_referral_rewrite( op, rs, "referralAttrDN",
159 (*ap)->a_nvals ? &(*ap)->a_nvals : NULL );
160 #else /* ! ENABLE_REWRITE */
162 rc = rwm_referral_rewrite( op, rs, &rc, (*ap)->a_vals,
163 (*ap)->a_nvals ? &(*ap)->a_nvals : NULL );
164 #endif /* ! ENABLE_REWRITE */
165 if ( rc != LDAP_SUCCESS ) {
176 /* FIXME: leaking attribute/values? */
183 /* TODO: map attribute types, values of DN-valued attributes ... */
184 return SLAP_CB_CONTINUE;
188 rwm_op_bind( Operation *op, SlapReply *rs )
190 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
191 struct ldaprwmap *rwmap =
192 (struct ldaprwmap *)on->on_bi.bi_private;
195 #ifdef ENABLE_REWRITE
196 ( void )rewrite_session_delete( rwmap->rwm_rw, op->o_conn );
197 ( void )rewrite_session_init( rwmap->rwm_rw, op->o_conn );
199 rc = rwm_op_dn_massage( op, rs, "bindDN" );
200 #else /* ! ENABLE_REWRITE */
202 rc = rwm_op_dn_massage( op, rs, &rc );
203 #endif /* ! ENABLE_REWRITE */
204 if ( rc != LDAP_SUCCESS ) {
205 op->o_bd->bd_info = (BackendInfo *)on->on_info;
206 send_ldap_error( op, rs, rc, "bindDN massage error" );
210 return SLAP_CB_CONTINUE;
214 rwm_op_unbind( Operation *op, SlapReply *rs )
216 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
217 struct ldaprwmap *rwmap =
218 (struct ldaprwmap *)on->on_bi.bi_private;
220 #ifdef ENABLE_REWRITE
221 rewrite_session_delete( rwmap->rwm_rw, op->o_conn );
222 #endif /* ENABLE_REWRITE */
224 return SLAP_CB_CONTINUE;
228 rwm_op_compare( Operation *op, SlapReply *rs )
230 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
231 struct ldaprwmap *rwmap =
232 (struct ldaprwmap *)on->on_bi.bi_private;
235 struct berval mapped_at = BER_BVNULL,
236 mapped_vals[2] = { BER_BVNULL, BER_BVNULL };
238 #ifdef ENABLE_REWRITE
239 rc = rwm_op_dn_massage( op, rs, "compareDN" );
240 #else /* ! ENABLE_REWRITE */
242 rc = rwm_op_dn_massage( op, rs, &rc );
243 #endif /* ! ENABLE_REWRITE */
244 if ( rc != LDAP_SUCCESS ) {
245 op->o_bd->bd_info = (BackendInfo *)on->on_info;
246 send_ldap_error( op, rs, rc, "compareDN massage error" );
250 /* if the attribute is an objectClass, try to remap its value */
251 if ( op->orc_ava->aa_desc == slap_schema.si_ad_objectClass
252 || op->orc_ava->aa_desc == slap_schema.si_ad_structuralObjectClass )
254 rwm_map( &rwmap->rwm_oc, &op->orc_ava->aa_value,
255 &mapped_vals[0], RWM_MAP );
256 if ( BER_BVISNULL( &mapped_vals[0] ) || BER_BVISEMPTY( &mapped_vals[0] ) )
258 op->o_bd->bd_info = (BackendInfo *)on->on_info;
259 send_ldap_error( op, rs, LDAP_OTHER, "compare objectClass map error" );
262 } else if ( mapped_vals[0].bv_val != op->orc_ava->aa_value.bv_val ) {
263 free( op->orc_ava->aa_value.bv_val );
264 op->orc_ava->aa_value = mapped_vals[0];
266 mapped_at = op->orc_ava->aa_desc->ad_cname;
269 struct ldapmapping *mapping = NULL;
270 AttributeDescription *ad = op->orc_ava->aa_desc;
272 ( void )rwm_mapping( &rwmap->rwm_at, &op->orc_ava->aa_desc->ad_cname,
274 if ( mapping == NULL ) {
275 if ( rwmap->rwm_at.drop_missing ) {
276 op->o_bd->bd_info = (BackendInfo *)on->on_info;
277 send_ldap_error( op, rs, LDAP_OTHER, "compare attributeType map error" );
282 ad = mapping->m_dst_ad;
285 if ( op->orc_ava->aa_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName )
287 struct berval *mapped_valsp[2];
289 mapped_valsp[0] = &mapped_vals[0];
290 mapped_valsp[1] = &mapped_vals[1];
292 mapped_vals[0] = op->orc_ava->aa_value;
294 #ifdef ENABLE_REWRITE
295 rc = rwm_dnattr_rewrite( op, rs, "compareAttrDN", NULL, mapped_valsp );
296 #else /* ! ENABLE_REWRITE */
298 rc = rwm_dnattr_rewrite( op, rs, &rc, NULL, mapped_valsp );
299 #endif /* ! ENABLE_REWRITE */
301 if ( rc != LDAP_SUCCESS ) {
302 op->o_bd->bd_info = (BackendInfo *)on->on_info;
303 send_ldap_error( op, rs, rc, "compareAttrDN massage error" );
307 op->orc_ava->aa_value = mapped_vals[0];
309 op->orc_ava->aa_desc = ad;
312 return SLAP_CB_CONTINUE;
316 rwm_op_delete( Operation *op, SlapReply *rs )
318 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
321 #ifdef ENABLE_REWRITE
322 rc = rwm_op_dn_massage( op, rs, "deleteDN" );
323 #else /* ! ENABLE_REWRITE */
325 rc = rwm_op_dn_massage( op, rs, &rc );
326 #endif /* ! ENABLE_REWRITE */
327 if ( rc != LDAP_SUCCESS ) {
328 op->o_bd->bd_info = (BackendInfo *)on->on_info;
329 send_ldap_error( op, rs, rc, "deleteDN massage error" );
333 return SLAP_CB_CONTINUE;
337 rwm_op_modify( Operation *op, SlapReply *rs )
339 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
340 struct ldaprwmap *rwmap =
341 (struct ldaprwmap *)on->on_bi.bi_private;
346 #ifdef ENABLE_REWRITE
347 rc = rwm_op_dn_massage( op, rs, "modifyDN" );
348 #else /* ! ENABLE_REWRITE */
350 rc = rwm_op_dn_massage( op, rs, &rc );
351 #endif /* ! ENABLE_REWRITE */
352 if ( rc != LDAP_SUCCESS ) {
353 op->o_bd->bd_info = (BackendInfo *)on->on_info;
354 send_ldap_error( op, rs, rc, "modifyDN massage error" );
358 for ( mlp = &op->oq_modify.rs_modlist; *mlp; ) {
362 if ( (*mlp)->sml_desc->ad_type->sat_no_user_mod ) {
366 if ( (*mlp)->sml_desc == slap_schema.si_ad_objectClass
367 || (*mlp)->sml_desc == slap_schema.si_ad_structuralObjectClass ) {
371 struct ldapmapping *m;
374 drop_missing = rwm_mapping( &rwmap->rwm_at, &(*mlp)->sml_desc->ad_cname, &m, RWM_MAP );
375 if ( drop_missing || ( m != NULL && BER_BVISNULL( &m->m_dst ) ) )
381 /* use new attribute description */
382 assert( m->m_dst_ad );
383 (*mlp)->sml_desc = m->m_dst_ad;
387 if ( (*mlp)->sml_values != NULL ) {
391 for ( last = 0; !BER_BVISNULL( &(*mlp)->sml_values[last] ); last++ )
395 for ( j = 0; !BER_BVISNULL( &(*mlp)->sml_values[j] ); j++ ) {
396 struct berval mapped = BER_BVNULL;
398 rwm_map( &rwmap->rwm_oc,
399 &(*mlp)->sml_values[j],
401 if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
402 /* FIXME: we allow to remove objectClasses as well;
403 * if the resulting entry is inconsistent, that's
404 * the relayed database's business...
410 (*mlp)->sml_values[j] = (*mlp)->sml_values[last];
411 BER_BVZERO( &(*mlp)->sml_values[last] );
416 ch_free( (*mlp)->sml_values[j].bv_val );
417 ber_dupbv( &(*mlp)->sml_values[j], &mapped );
422 if ( (*mlp)->sml_desc->ad_type->sat_syntax ==
423 slap_schema.si_syn_distinguishedName )
425 #ifdef ENABLE_REWRITE
426 rc = rwm_dnattr_rewrite( op, rs, "modifyAttrDN",
428 (*mlp)->sml_nvalues ? &(*mlp)->sml_nvalues : NULL );
429 #else /* ! ENABLE_REWRITE */
431 rc = rwm_dnattr_rewrite( op, rs, &rc,
433 (*mlp)->sml_nvalues ? &(*mlp)->sml_nvalues : NULL );
434 #endif /* ! ENABLE_REWRITE */
436 } else if ( (*mlp)->sml_desc == slap_schema.si_ad_ref ) {
437 #ifdef ENABLE_REWRITE
438 rc = rwm_referral_rewrite( op, rs,
441 (*mlp)->sml_nvalues ? &(*mlp)->sml_nvalues : NULL );
442 #else /* ! ENABLE_REWRITE */
444 rc = rwm_referral_rewrite( op, rs, &rc,
446 (*mlp)->sml_nvalues ? &(*mlp)->sml_nvalues : NULL );
447 #endif /* ! ENABLE_REWRITE */
448 if ( rc != LDAP_SUCCESS ) {
453 if ( rc != LDAP_SUCCESS ) {
460 mlp = &(*mlp)->sml_next;
465 *mlp = (*mlp)->sml_next;
466 slap_mod_free( &ml->sml_mod, 0 );
470 /* TODO: rewrite attribute types, values of DN-valued attributes ... */
471 return SLAP_CB_CONTINUE;
475 rwm_op_modrdn( Operation *op, SlapReply *rs )
477 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
478 struct ldaprwmap *rwmap =
479 (struct ldaprwmap *)on->on_bi.bi_private;
483 if ( op->orr_newSup ) {
485 struct berval nnewSup = BER_BVNULL;
486 struct berval newSup = BER_BVNULL;
489 * Rewrite the new superior, if defined and required
492 #ifdef ENABLE_REWRITE
493 dc.conn = op->o_conn;
495 dc.ctx = "newSuperiorDN";
496 #else /* ! ENABLE_REWRITE */
499 #endif /* ! ENABLE_REWRITE */
500 newSup = *op->orr_newSup;
501 nnewSup = *op->orr_nnewSup;
502 rc = rwm_dn_massage_pretty_normalize( &dc, op->orr_newSup, &newSup, &nnewSup );
503 if ( rc != LDAP_SUCCESS ) {
504 op->o_bd->bd_info = (BackendInfo *)on->on_info;
505 send_ldap_error( op, rs, rc, "newSuperiorDN massage error" );
509 if ( op->orr_newSup->bv_val != newSup.bv_val ) {
510 op->o_tmpfree( op->orr_newSup->bv_val, op->o_tmpmemctx );
511 op->o_tmpfree( op->orr_nnewSup->bv_val, op->o_tmpmemctx );
512 *op->orr_newSup = newSup;
513 *op->orr_nnewSup = nnewSup;
518 * Rewrite the dn, if needed
520 #ifdef ENABLE_REWRITE
521 rc = rwm_op_dn_massage( op, rs, "renameDN" );
522 #else /* ! ENABLE_REWRITE */
524 rc = rwm_op_dn_massage( op, rs, &rc );
525 #endif /* ! ENABLE_REWRITE */
526 if ( rc != LDAP_SUCCESS ) {
527 op->o_bd->bd_info = (BackendInfo *)on->on_info;
528 send_ldap_error( op, rs, rc, "renameDN massage error" );
532 /* TODO: rewrite newRDN, attribute types,
533 * values of DN-valued attributes ... */
534 return SLAP_CB_CONTINUE;
538 rwm_swap_attrs( Operation *op, SlapReply *rs )
540 slap_callback *cb = op->o_callback;
541 AttributeName *an = (AttributeName *)cb->sc_private;
545 return SLAP_CB_CONTINUE;
548 static int rwm_freeself( Operation *op, SlapReply *rs )
550 if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_RESULT ) {
551 assert( op->o_callback );
553 op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
554 op->o_callback = NULL;
557 return SLAP_CB_CONTINUE;
561 rwm_op_search( Operation *op, SlapReply *rs )
563 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
564 struct ldaprwmap *rwmap =
565 (struct ldaprwmap *)on->on_bi.bi_private;
570 struct berval fstr = BER_BVNULL;
574 AttributeName *an = NULL;
578 #ifdef ENABLE_REWRITE
579 rc = rwm_op_dn_massage( op, rs, "searchDN" );
580 #else /* ! ENABLE_REWRITE */
582 rc = rwm_op_dn_massage( op, rs, &rc );
583 #endif /* ! ENABLE_REWRITE */
584 if ( rc != LDAP_SUCCESS ) {
585 text = "searchDN massage error";
590 * Rewrite the dn if needed
593 #ifdef ENABLE_REWRITE
594 dc.conn = op->o_conn;
596 dc.ctx = "searchFilterAttrDN";
597 #else /* ! ENABLE_REWRITE */
600 #endif /* ! ENABLE_REWRITE */
602 rc = rwm_filter_map_rewrite( &dc, op->ors_filter, &fstr );
603 if ( rc != LDAP_SUCCESS ) {
604 text = "searchFilter/searchFilterAttrDN massage error";
608 f = str2filter_x( op, fstr.bv_val );
611 text = "massaged filter parse error";
615 if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
616 ch_free( op->ors_filterstr.bv_val );
619 if( op->ors_filter ) {
620 filter_free_x( op, op->ors_filter );
624 op->ors_filterstr = fstr;
626 rc = rwm_map_attrnames( &rwmap->rwm_at, &rwmap->rwm_oc,
627 op->ors_attrs, &an, RWM_MAP );
628 if ( rc != LDAP_SUCCESS ) {
629 text = "attribute list mapping error";
633 cb = (slap_callback *) op->o_tmpcalloc( sizeof( slap_callback ),
634 1, op->o_tmpmemctx );
640 cb->sc_response = rwm_swap_attrs;
641 cb->sc_cleanup = rwm_freeself;
642 cb->sc_private = (void *)op->ors_attrs;
643 cb->sc_next = op->o_callback;
648 return SLAP_CB_CONTINUE;
656 filter_free_x( op, f );
659 if ( !BER_BVISNULL( &fstr ) ) {
660 ch_free( fstr.bv_val );
663 op->o_bd->bd_info = (BackendInfo *)on->on_info;
664 send_ldap_error( op, rs, rc, text );
671 rwm_extended( Operation *op, SlapReply *rs )
673 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
676 #ifdef ENABLE_REWRITE
677 rc = rwm_op_dn_massage( op, rs, "extendedDN" );
678 #else /* ! ENABLE_REWRITE */
680 rc = rwm_op_dn_massage( op, rs, &rc );
681 #endif /* ! ENABLE_REWRITE */
682 if ( rc != LDAP_SUCCESS ) {
683 op->o_bd->bd_info = (BackendInfo *)on->on_info;
684 send_ldap_error( op, rs, rc, "extendedDN massage error" );
688 /* TODO: rewrite/map extended data ? ... */
689 return SLAP_CB_CONTINUE;
693 rwm_matched( Operation *op, SlapReply *rs )
695 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
696 struct ldaprwmap *rwmap =
697 (struct ldaprwmap *)on->on_bi.bi_private;
699 struct berval dn, mdn;
703 if ( rs->sr_matched == NULL ) {
704 return SLAP_CB_CONTINUE;
708 #ifdef ENABLE_REWRITE
709 dc.conn = op->o_conn;
711 dc.ctx = "matchedDN";
712 #else /* ! ENABLE_REWRITE */
715 #endif /* ! ENABLE_REWRITE */
716 ber_str2bv( rs->sr_matched, 0, 0, &dn );
718 rc = rwm_dn_massage_pretty( &dc, &dn, &mdn );
719 if ( rc != LDAP_SUCCESS ) {
721 rs->sr_text = "Rewrite error";
725 if ( mdn.bv_val != dn.bv_val ) {
726 if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
727 ch_free( (void *)rs->sr_matched );
730 rs->sr_flags |= REP_MATCHED_MUSTBEFREED;
732 rs->sr_matched = mdn.bv_val;
735 return SLAP_CB_CONTINUE;
739 rwm_attrs( Operation *op, SlapReply *rs, Attribute** a_first )
741 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
742 struct ldaprwmap *rwmap =
743 (struct ldaprwmap *)on->on_bi.bi_private;
750 * Rewrite the dn attrs, if needed
753 #ifdef ENABLE_REWRITE
754 dc.conn = op->o_conn;
756 #else /* ! ENABLE_REWRITE */
759 #endif /* ! ENABLE_REWRITE */
761 /* FIXME: the entries are in the remote mapping form;
762 * so we need to select those attributes we are willing
763 * to return, and remap them accordingly */
765 /* FIXME: in principle, one could map an attribute
766 * on top of another, which already exists.
767 * As such, in the end there might exist more than
768 * one instance of an attribute.
769 * We should at least check if this occurs, and issue
770 * an error (because multiple instances of attrs in
771 * response are not valid), or merge the values (what
772 * about duplicate values?) */
773 for ( ap = a_first; *ap; ) {
774 struct ldapmapping *m;
779 if ( SLAP_OPATTRS( rs->sr_attr_flags ) && is_at_operational( (*ap)->a_desc->ad_type ) )
783 } else if ( op->ors_attrs != NULL &&
784 !SLAP_USERATTRS( rs->sr_attr_flags ) &&
785 !ad_inlist( (*ap)->a_desc, op->ors_attrs ) )
790 if ( (*ap)->a_desc->ad_type->sat_no_user_mod
791 && (*ap)->a_desc->ad_type != slap_schema.si_at_undefined )
796 drop_missing = rwm_mapping( &rwmap->rwm_at,
797 &(*ap)->a_desc->ad_cname, &m, RWM_REMAP );
798 if ( drop_missing || ( m != NULL && BER_BVISEMPTY( &m->m_dst ) ) ) {
802 for ( last = 0; !BER_BVISNULL( &(*ap)->a_vals[last] ); last++ )
806 /* empty? for now, we leave it in place */
811 if ( (*ap)->a_desc == slap_schema.si_ad_objectClass
812 || (*ap)->a_desc == slap_schema.si_ad_structuralObjectClass )
816 for ( bv = (*ap)->a_vals; !BER_BVISNULL( bv ); bv++ ) {
817 struct berval mapped;
819 rwm_map( &rwmap->rwm_oc, &bv[0], &mapped, RWM_REMAP );
820 if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
821 ch_free( bv[0].bv_val );
822 BER_BVZERO( &bv[0] );
823 if ( &(*ap)->a_vals[last] > &bv[0] ) {
824 bv[0] = (*ap)->a_vals[last];
825 BER_BVZERO( &(*ap)->a_vals[last] );
830 } else if ( mapped.bv_val != bv[0].bv_val ) {
832 * FIXME: after LBER_FREEing
833 * the value is replaced by
836 ch_free( bv[0].bv_val );
837 ber_dupbv( &bv[0], &mapped );
842 * It is necessary to try to rewrite attributes with
843 * dn syntax because they might be used in ACLs as
844 * members of groups; since ACLs are applied to the
845 * rewritten stuff, no dn-based subject clause could
846 * be used at the ldap backend side (see
847 * http://www.OpenLDAP.org/faq/data/cache/452.html)
848 * The problem can be overcome by moving the dn-based
849 * ACLs to the target directory server, and letting
850 * everything pass thru the ldap backend. */
851 /* FIXME: handle distinguishedName-like syntaxes, like
852 * nameAndOptionalUID */
853 } else if ( (*ap)->a_desc->ad_type->sat_syntax ==
854 slap_schema.si_syn_distinguishedName )
856 #ifdef ENABLE_REWRITE
857 dc.ctx = "searchAttrDN";
858 #endif /* ENABLE_REWRITE */
859 rc = rwm_dnattr_result_rewrite( &dc, (*ap)->a_vals );
860 if ( rc != LDAP_SUCCESS ) {
864 } else if ( (*ap)->a_desc == slap_schema.si_ad_ref ) {
865 #ifdef ENABLE_REWRITE
866 dc.ctx = "searchAttrDN";
867 #endif /* ENABLE_REWRITE */
868 rc = rwm_referral_result_rewrite( &dc, (*ap)->a_vals );
869 if ( rc != LDAP_SUCCESS ) {
875 /* rewrite the attribute description */
876 assert( m->m_dst_ad );
877 (*ap)->a_desc = m->m_dst_ad;
895 rwm_send_entry( Operation *op, SlapReply *rs )
897 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
898 struct ldaprwmap *rwmap =
899 (struct ldaprwmap *)on->on_bi.bi_private;
903 struct berval dn = BER_BVNULL,
908 assert( rs->sr_entry );
911 * Rewrite the dn of the result, if needed
914 #ifdef ENABLE_REWRITE
915 dc.conn = op->o_conn;
917 dc.ctx = "searchEntryDN";
918 #else /* ! ENABLE_REWRITE */
921 #endif /* ! ENABLE_REWRITE */
924 flags = rs->sr_flags;
925 if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
926 /* FIXME: all we need to duplicate are:
929 * - attributes that are requested
930 * - no values if attrsonly is set
939 flags |= ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
943 * Note: this may fail if the target host(s) schema differs
944 * from the one known to the meta, and a DN with unknown
945 * attributes is returned.
949 rc = rwm_dn_massage_pretty_normalize( &dc, &e->e_name, &dn, &ndn );
950 if ( rc != LDAP_SUCCESS ) {
955 if ( e->e_name.bv_val != dn.bv_val ) {
956 ch_free( e->e_name.bv_val );
957 ch_free( e->e_nname.bv_val );
963 /* TODO: map entry attribute types, objectclasses
964 * and dn-valued attribute values */
966 /* FIXME: the entries are in the remote mapping form;
967 * so we need to select those attributes we are willing
968 * to return, and remap them accordingly */
969 (void)rwm_attrs( op, rs, &e->e_attrs );
972 rs->sr_flags = flags;
974 return SLAP_CB_CONTINUE;
977 if ( !BER_BVISNULL( &dn ) ) {
978 ch_free( dn.bv_val );
981 if ( !BER_BVISNULL( &ndn ) ) {
982 ch_free( ndn.bv_val );
985 if ( e != NULL && e != rs->sr_entry ) {
993 rwm_operational( Operation *op, SlapReply *rs )
995 /* FIXME: the entries are in the remote mapping form;
996 * so we need to select those attributes we are willing
997 * to return, and remap them accordingly */
998 if ( rs->sr_operational_attrs ) {
999 rwm_attrs( op, rs, &rs->sr_operational_attrs );
1002 return SLAP_CB_CONTINUE;
1006 /* don't use this; it cannot be reverted, and leaves op->o_req_dn
1007 * rewritten for subsequent operations; fine for plain suffixmassage,
1008 * but destroys everything else */
1010 rwm_chk_referrals( Operation *op, SlapReply *rs )
1012 slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
1015 #ifdef ENABLE_REWRITE
1016 rc = rwm_op_dn_massage( op, rs, "referralCheckDN" );
1017 #else /* ! ENABLE_REWRITE */
1019 rc = rwm_op_dn_massage( op, rs, &rc );
1020 #endif /* ! ENABLE_REWRITE */
1021 if ( rc != LDAP_SUCCESS ) {
1022 op->o_bd->bd_info = (BackendInfo *)on->on_info;
1023 send_ldap_error( op, rs, rc, "referralCheckDN massage error" );
1027 return SLAP_CB_CONTINUE;
1040 #ifdef ENABLE_REWRITE
1041 slap_overinst *on = (slap_overinst *) be->bd_info;
1042 struct ldaprwmap *rwmap =
1043 (struct ldaprwmap *)on->on_bi.bi_private;
1045 return rewrite_parse( rwmap->rwm_rw,
1046 fname, lineno, argc, argv );
1048 #else /* !ENABLE_REWRITE */
1049 fprintf( stderr, "%s: line %d: rewrite capabilities "
1050 "are not enabled\n", fname, lineno );
1051 #endif /* !ENABLE_REWRITE */
1057 rwm_suffixmassage_config(
1065 slap_overinst *on = (slap_overinst *) be->bd_info;
1066 struct ldaprwmap *rwmap =
1067 (struct ldaprwmap *)on->on_bi.bi_private;
1069 struct berval bvnc, nvnc, pvnc, brnc, nrnc, prnc;
1071 #ifdef ENABLE_REWRITE
1073 #endif /* ENABLE_REWRITE */
1078 * suffixmassage [<suffix>] <massaged suffix>
1080 * the [<suffix>] field must be defined as a valid suffix
1081 * for the current database;
1082 * the <massaged suffix> shouldn't have already been
1083 * defined as a valid suffix for the current server
1086 if ( be->be_suffix == NULL ) {
1087 fprintf( stderr, "%s: line %d: "
1088 " \"suffixMassage [<suffix>]"
1089 " <massaged suffix>\" without "
1090 "<suffix> part requires database "
1091 "suffix be defined first.\n",
1095 bvnc = be->be_suffix[ 0 ];
1098 } else if ( argc == 3 ) {
1099 ber_str2bv( argv[ 1 ], 0, 0, &bvnc );
1103 fprintf( stderr, "%s: line %d: syntax is"
1104 " \"suffixMassage [<suffix>]"
1105 " <massaged suffix>\"\n",
1110 if ( dnPrettyNormal( NULL, &bvnc, &pvnc, &nvnc, NULL ) != LDAP_SUCCESS ) {
1111 fprintf( stderr, "%s: line %d: suffix DN %s is invalid\n",
1112 fname, lineno, bvnc.bv_val );
1116 ber_str2bv( argv[ massaged ], 0, 0, &brnc );
1117 if ( dnPrettyNormal( NULL, &brnc, &prnc, &nrnc, NULL ) != LDAP_SUCCESS ) {
1118 fprintf( stderr, "%s: line %d: suffix DN %s is invalid\n",
1119 fname, lineno, brnc.bv_val );
1120 free( nvnc.bv_val );
1121 free( pvnc.bv_val );
1125 #ifdef ENABLE_REWRITE
1127 * The suffix massaging is emulated
1128 * by means of the rewrite capabilities
1130 rc = rwm_suffix_massage_config( rwmap->rwm_rw,
1131 &pvnc, &nvnc, &prnc, &nrnc );
1132 free( nvnc.bv_val );
1133 free( pvnc.bv_val );
1134 free( nrnc.bv_val );
1135 free( prnc.bv_val );
1139 #else /* !ENABLE_REWRITE */
1140 ber_bvarray_add( &rwmap->rwm_suffix_massage, &pvnc );
1141 ber_bvarray_add( &rwmap->rwm_suffix_massage, &nvnc );
1143 ber_bvarray_add( &rwmap->rwm_suffix_massage, &prnc );
1144 ber_bvarray_add( &rwmap->rwm_suffix_massage, &nrnc );
1145 #endif /* !ENABLE_REWRITE */
1159 slap_overinst *on = (slap_overinst *) be->bd_info;
1160 struct ldaprwmap *rwmap =
1161 (struct ldaprwmap *)on->on_bi.bi_private;
1163 /* objectclass/attribute mapping */
1164 return rwm_map_config( &rwmap->rwm_oc,
1166 fname, lineno, argc, argv );
1170 rwm_response( Operation *op, SlapReply *rs )
1172 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1173 struct ldaprwmap *rwmap =
1174 (struct ldaprwmap *)on->on_bi.bi_private;
1178 if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
1179 return rwm_send_entry( op, rs );
1182 switch( op->o_tag ) {
1183 case LDAP_REQ_SEARCH:
1184 /* Note: the operation attrs are remapped */
1185 if ( op->ors_attrs != NULL && op->ors_attrs != rs->sr_attrs )
1187 ch_free( op->ors_attrs );
1188 op->ors_attrs = rs->sr_attrs;
1194 case LDAP_REQ_DELETE:
1195 case LDAP_REQ_MODRDN:
1196 case LDAP_REQ_MODIFY:
1197 case LDAP_REQ_COMPARE:
1198 case LDAP_REQ_EXTENDED:
1203 * Rewrite the dn of the referrals, if needed
1206 #ifdef ENABLE_REWRITE
1207 dc.conn = op->o_conn;
1209 dc.ctx = "referralDN";
1210 #else /* ! ENABLE_REWRITE */
1213 #endif /* ! ENABLE_REWRITE */
1214 rc = rwm_referral_result_rewrite( &dc, rs->sr_ref );
1215 if ( rc != LDAP_SUCCESS ) {
1220 rc = rwm_matched( op, rs );
1224 rc = SLAP_CB_CONTINUE;
1243 if ( strncasecmp( argv[ 0 ], "rwm-", STRLENOF( "rwm-" ) ) == 0 ) {
1245 argv[ 0 ] = &argv0[ STRLENOF( "rwm-" ) ];
1248 if ( strncasecmp( argv[0], "rewrite", STRLENOF("rewrite") ) == 0 ) {
1249 rc = rwm_rw_config( be, fname, lineno, argc, argv );
1251 } else if ( strcasecmp( argv[0], "map" ) == 0 ) {
1252 rc = rwm_m_config( be, fname, lineno, argc, argv );
1254 } else if ( strcasecmp( argv[0], "suffixmassage" ) == 0 ) {
1255 rc = rwm_suffixmassage_config( be, fname, lineno, argc, argv );
1258 rc = SLAP_CONF_UNKNOWN;
1273 slap_overinst *on = (slap_overinst *) be->bd_info;
1274 struct ldapmapping *mapping = NULL;
1275 struct ldaprwmap *rwmap;
1277 rwmap = (struct ldaprwmap *)ch_malloc(sizeof(struct ldaprwmap));
1278 memset(rwmap, 0, sizeof(struct ldaprwmap));
1280 #ifdef ENABLE_REWRITE
1281 rwmap->rwm_rw = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
1282 if ( rwmap->rwm_rw == NULL ) {
1290 /* this rewriteContext by default must be null;
1291 * rules can be added if required */
1292 rargv[ 0 ] = "rewriteContext";
1293 rargv[ 1 ] = "searchFilter";
1295 rewrite_parse( rwmap->rwm_rw, "<suffix massage>", 1, 2, rargv );
1297 rargv[ 0 ] = "rewriteContext";
1298 rargv[ 1 ] = "default";
1300 rewrite_parse( rwmap->rwm_rw, "<suffix massage>", 2, 2, rargv );
1303 #endif /* ENABLE_REWRITE */
1305 if ( rwm_map_init( &rwmap->rwm_oc, &mapping ) != LDAP_SUCCESS ||
1306 rwm_map_init( &rwmap->rwm_at, &mapping ) != LDAP_SUCCESS )
1311 on->on_bi.bi_private = (void *)rwmap;
1321 slap_overinst *on = (slap_overinst *) be->bd_info;
1324 if ( on->on_bi.bi_private ) {
1325 struct ldaprwmap *rwmap =
1326 (struct ldaprwmap *)on->on_bi.bi_private;
1328 #ifdef ENABLE_REWRITE
1329 if (rwmap->rwm_rw) {
1330 rewrite_info_delete( &rwmap->rwm_rw );
1332 #else /* !ENABLE_REWRITE */
1333 if ( rwmap->rwm_suffix_massage ) {
1334 ber_bvarray_free( rwmap->rwm_suffix_massage );
1336 #endif /* !ENABLE_REWRITE */
1338 avl_free( rwmap->rwm_oc.remap, NULL );
1339 avl_free( rwmap->rwm_oc.map, rwm_mapping_free );
1340 avl_free( rwmap->rwm_at.remap, NULL );
1341 avl_free( rwmap->rwm_at.map, rwm_mapping_free );
1347 static slap_overinst rwm = { { NULL } };
1352 memset( &rwm, 0, sizeof( slap_overinst ) );
1354 rwm.on_bi.bi_type = "rwm";
1356 rwm.on_bi.bi_db_init = rwm_db_init;
1357 rwm.on_bi.bi_db_config = rwm_db_config;
1358 rwm.on_bi.bi_db_destroy = rwm_db_destroy;
1360 rwm.on_bi.bi_op_bind = rwm_op_bind;
1361 rwm.on_bi.bi_op_search = rwm_op_search;
1362 rwm.on_bi.bi_op_compare = rwm_op_compare;
1363 rwm.on_bi.bi_op_modify = rwm_op_modify;
1364 rwm.on_bi.bi_op_modrdn = rwm_op_modrdn;
1365 rwm.on_bi.bi_op_add = rwm_op_add;
1366 rwm.on_bi.bi_op_delete = rwm_op_delete;
1367 rwm.on_bi.bi_op_unbind = rwm_op_unbind;
1368 rwm.on_bi.bi_extended = rwm_extended;
1370 rwm.on_bi.bi_operational = rwm_operational;
1371 rwm.on_bi.bi_chk_referrals = 0 /* rwm_chk_referrals */ ;
1373 rwm.on_response = rwm_response;
1375 return overlay_register( &rwm );
1378 #if SLAPD_OVER_RWM == SLAPD_MOD_DYNAMIC
1380 init_module( int argc, char *argv[] )
1384 #endif /* SLAPD_OVER_RWM == SLAPD_MOD_DYNAMIC */
1386 #endif /* SLAPD_OVER_RWM */