2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1999-2006 The OpenLDAP Foundation.
5 * Portions Copyright 2001-2003 Pierangelo Masarati.
6 * Portions Copyright 1999-2003 Howard Chu.
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>.
18 * This work was initially developed by the Howard Chu for inclusion
19 * in OpenLDAP Software and subsequently enhanced by Pierangelo
28 #include <ac/socket.h>
29 #include <ac/string.h>
34 #include "../back-ldap/back-ldap.h"
35 #include "back-meta.h"
36 #undef ldap_debug /* silence a warning in ldap-int.h */
37 #include "../../../libraries/libldap/ldap-int.h"
39 #include "lutil_ldap.h"
42 meta_back_proxy_authz_bind(
47 ldap_back_send_t sendok );
50 meta_back_single_bind(
57 meta_back_bind( Operation *op, SlapReply *rs )
59 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
60 metaconn_t *mc = NULL;
67 SlapReply *candidates = meta_back_candidates_get( op );
69 rs->sr_err = LDAP_SUCCESS;
71 Debug( LDAP_DEBUG_ARGS, "%s meta_back_bind: dn=\"%s\".\n",
72 op->o_log_prefix, op->o_req_dn.bv_val, 0 );
74 /* the test on the bind method should be superfluous */
75 if ( op->orb_method == LDAP_AUTH_SIMPLE
76 && be_isroot_dn( op->o_bd, &op->o_req_ndn ) )
78 if ( !be_isroot_pw( op ) ) {
79 rs->sr_err = LDAP_INVALID_CREDENTIALS;
81 send_ldap_result( op, rs );
85 if ( META_BACK_DEFER_ROOTDN_BIND( mi ) ) {
86 rs->sr_err = LDAP_SUCCESS;
88 /* frontend will return success */
95 /* we need meta_back_getconn() not send result even on error,
96 * because we want to intercept the error and make it
97 * invalidCredentials */
98 mc = meta_back_getconn( op, rs, NULL, LDAP_BACK_BIND_DONTSEND );
100 if ( LogTest( LDAP_DEBUG_ANY ) ) {
101 char buf[ SLAP_TEXT_BUFLEN ];
103 snprintf( buf, sizeof( buf ),
104 "meta_back_bind: no target "
105 "for dn \"%s\" (%d%s%s).",
106 op->o_req_dn.bv_val, rs->sr_err,
107 rs->sr_text ? ". " : "",
108 rs->sr_text ? rs->sr_text : "" );
109 Debug( LDAP_DEBUG_ANY,
111 op->o_log_prefix, buf, 0 );
114 /* FIXME: there might be cases where we don't want
115 * to map the error onto invalidCredentials */
116 switch ( rs->sr_err ) {
117 case LDAP_NO_SUCH_OBJECT:
118 case LDAP_UNWILLING_TO_PERFORM:
119 rs->sr_err = LDAP_INVALID_CREDENTIALS;
123 send_ldap_result( op, rs );
128 * Each target is scanned ...
130 mc->mc_authz_target = META_BOUND_NONE;
131 for ( i = 0; i < mi->mi_ntargets; i++ ) {
132 metatarget_t *mt = mi->mi_targets[ i ];
136 * Skip non-candidates
138 if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
143 /* set rc to LDAP_SUCCESS only if at least
144 * one candidate has been tried */
148 } else if ( isroot == 0 ) {
150 * A bind operation is expected to have
151 * ONE CANDIDATE ONLY!
153 Debug( LDAP_DEBUG_ANY,
154 "### %s meta_back_bind: more than one"
155 " candidate selected...\n",
156 op->o_log_prefix, 0, 0 );
160 if ( mt->mt_idassert_authmethod == LDAP_AUTH_NONE
161 || BER_BVISNULL( &mt->mt_idassert_authcDN ) )
163 metasingleconn_t *msc = &mc->mc_conns[ i ];
165 /* skip the target if no pseudorootdn is provided */
166 if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
167 ch_free( msc->msc_bound_ndn.bv_val );
168 BER_BVZERO( &msc->msc_bound_ndn );
171 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
172 /* destroy sensitive data */
173 memset( msc->msc_cred.bv_val, 0,
174 msc->msc_cred.bv_len );
175 ch_free( msc->msc_cred.bv_val );
176 BER_BVZERO( &msc->msc_cred );
183 (void)meta_back_proxy_authz_bind( mc, i, op, rs, LDAP_BACK_DONTSEND );
187 lerr = meta_back_single_bind( op, rs, mc, i );
190 if ( lerr != LDAP_SUCCESS ) {
191 rc = rs->sr_err = lerr;
192 /* FIXME: in some cases (e.g. unavailable)
193 * do not assume it's not candidate; rather
194 * mark this as an error to be eventually
195 * reported to client */
196 META_CANDIDATE_CLEAR( &candidates[ i ] );
201 /* must re-insert if local DN changed as result of bind */
202 if ( rc == LDAP_SUCCESS ) {
204 mc->mc_authz_target = META_BOUND_ALL;
205 ber_dupbv( &op->orb_edn, be_root_dn( op->o_bd ) );
208 if ( !dn_match( &op->o_req_ndn, &mc->mc_local_ndn ) ) {
212 /* wait for all other ops to release the connection */
214 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
215 if ( mc->mc_refcnt > 1 ) {
216 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
217 ldap_pvt_thread_yield();
221 assert( mc->mc_refcnt == 1 );
222 #if META_BACK_PRINT_CONNTREE > 0
223 meta_back_print_conntree( mi, ">>> meta_back_bind" );
224 #endif /* META_BACK_PRINT_CONNTREE */
225 tmpmc = avl_delete( &mi->mi_conninfo.lai_tree, (caddr_t)mc,
226 meta_back_conndn_cmp );
227 assert( tmpmc == mc );
229 /* delete all cached connections with the current connection */
230 if ( LDAP_BACK_SINGLECONN( mi ) ) {
231 while ( ( tmpmc = avl_delete( &mi->mi_conninfo.lai_tree, (caddr_t)mc, meta_back_conn_cmp ) ) != NULL )
233 Debug( LDAP_DEBUG_TRACE,
234 "=>meta_back_bind: destroying conn %ld (refcnt=%u)\n",
235 LDAP_BACK_PCONN_ID( mc ), mc->mc_refcnt, 0 );
237 if ( tmpmc->mc_refcnt != 0 ) {
239 LDAP_BACK_CONN_TAINTED_SET( tmpmc );
243 * Needs a test because the handler may be corrupted,
244 * and calling ldap_unbind on a corrupted header results
245 * in a segmentation fault
247 meta_back_conn_free( tmpmc );
252 ber_bvreplace( &mc->mc_local_ndn, &op->o_req_ndn );
254 LDAP_BACK_CONN_ISPRIV_SET( mc );
255 LDAP_BACK_PCONN_SET( mc, op );
257 lerr = avl_insert( &mi->mi_conninfo.lai_tree, (caddr_t)mc,
258 meta_back_conndn_cmp, meta_back_conndn_dup );
259 #if META_BACK_PRINT_CONNTREE > 0
260 meta_back_print_conntree( mi, "<<< meta_back_bind" );
261 #endif /* META_BACK_PRINT_CONNTREE */
262 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
264 /* we can do this because mc_refcnt == 1 */
265 assert( mc->mc_refcnt == 1 );
267 meta_back_conn_free( mc );
274 meta_back_release_conn( op, mc );
278 * rc is LDAP_SUCCESS if at least one bind succeeded,
279 * err is the last error that occurred during a bind;
280 * if at least (and at most?) one bind succeeds, fine.
282 if ( rc != LDAP_SUCCESS ) {
285 * deal with bind failure ...
289 * no target was found within the naming context,
290 * so bind must fail with invalid credentials
292 if ( rs->sr_err == LDAP_SUCCESS && gotit == 0 ) {
293 rs->sr_err = LDAP_INVALID_CREDENTIALS;
295 rs->sr_err = slap_map_api2result( rs );
297 send_ldap_result( op, rs );
306 meta_back_bind_op_result(
312 ldap_back_send_t sendok )
314 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
315 metatarget_t *mt = mi->mi_targets[ candidate ];
316 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
320 int nretries = mt->mt_nretries;
321 char buf[ SLAP_TEXT_BUFLEN ];
323 Debug( LDAP_DEBUG_TRACE,
324 ">>> %s meta_back_bind_op_result[%d]\n",
325 op->o_log_prefix, candidate, 0 );
327 if ( rs->sr_err == LDAP_SUCCESS ) {
328 time_t stoptime = (time_t)(-1),
330 int timeout_err = op->o_protocol >= LDAP_VERSION3 ?
331 LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER;
332 const char *timeout_text = "Operation timed out";
333 slap_op_t opidx = slap_req2op( op->o_tag );
335 /* since timeout is not specified, compute and use
336 * the one specific to the ongoing operation */
337 if ( opidx == LDAP_REQ_SEARCH ) {
338 if ( op->ors_tlimit <= 0 ) {
342 timeout = op->ors_tlimit;
343 timeout_err = LDAP_TIMELIMIT_EXCEEDED;
348 timeout = mt->mt_timeout[ opidx ];
351 /* better than nothing :) */
352 if ( timeout == 0 ) {
353 if ( mi->mi_idle_timeout ) {
354 timeout = mi->mi_idle_timeout;
356 } else if ( mi->mi_conn_ttl ) {
357 timeout = mi->mi_conn_ttl;
362 stoptime = op->o_time + timeout;
365 LDAP_BACK_TV_SET( &tv );
371 rc = ldap_result( msc->msc_ld, msgid, LDAP_MSG_ALL, &tv, &res );
375 Debug( LDAP_DEBUG_ANY,
376 "%s meta_back_bind_op_result[%d]: ldap_result=0 nretries=%d.\n",
377 op->o_log_prefix, candidate, nretries );
380 if ( nretries != META_RETRY_NEVER
381 || ( timeout && slap_get_time() <= stoptime ) )
383 ldap_pvt_thread_yield();
384 if ( nretries > 0 ) {
387 tv = mt->mt_bind_timeout;
391 /* don't let anyone else use this handler,
392 * because there's a pending bind that will not
394 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
395 assert( LDAP_BACK_CONN_BINDING( msc ) );
398 Debug( LDAP_DEBUG_ANY, "### %s meta_back_bind_op_result ldap_unbind_ext[%d] ld=%p\n",
399 op->o_log_prefix, candidate, (void *)msc->msc_ld );
400 #endif /* DEBUG_205 */
402 meta_clear_one_candidate( op, mc, candidate );
403 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
405 rs->sr_err = timeout_err;
406 rs->sr_text = timeout_text;
410 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE,
413 snprintf( buf, sizeof( buf ),
414 "err=%d (%s) nretries=%d",
415 rs->sr_err, ldap_err2string( rs->sr_err ), nretries );
416 Debug( LDAP_DEBUG_ANY,
417 "### %s meta_back_bind_op_result[%d]: %s.\n",
418 op->o_log_prefix, candidate, buf );
422 /* only touch when activity actually took place... */
423 if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) {
424 msc->msc_time = op->o_time;
427 /* FIXME: matched? referrals? response controls? */
428 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
429 NULL, NULL, NULL, NULL, 1 );
430 if ( rc != LDAP_SUCCESS ) {
437 rs->sr_err = slap_map_api2result( rs );
439 Debug( LDAP_DEBUG_TRACE,
440 "<<< %s meta_back_bind_op_result[%d] err=%d\n",
441 op->o_log_prefix, candidate, rs->sr_err );
447 * meta_back_single_bind
449 * attempts to perform a bind with creds
452 meta_back_single_bind(
458 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
459 metatarget_t *mt = mi->mi_targets[ candidate ];
460 struct berval mdn = BER_BVNULL;
461 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
465 if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
466 ch_free( msc->msc_bound_ndn.bv_val );
467 BER_BVZERO( &msc->msc_bound_ndn );
470 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
471 /* destroy sensitive data */
472 memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len );
473 ch_free( msc->msc_cred.bv_val );
474 BER_BVZERO( &msc->msc_cred );
478 * Rewrite the bind dn if needed
481 dc.conn = op->o_conn;
485 if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
486 rs->sr_text = "DN rewrite error";
487 rs->sr_err = LDAP_OTHER;
491 /* FIXME: this fixes the bind problem right now; we need
492 * to use the asynchronous version to get the "matched"
493 * and more in case of failure ... */
494 /* FIXME: should we check if at least some of the op->o_ctrls
495 * can/should be passed? */
496 rs->sr_err = ldap_sasl_bind( msc->msc_ld, mdn.bv_val,
497 LDAP_SASL_SIMPLE, &op->orb_cred,
498 op->o_ctrls, NULL, &msgid );
499 meta_back_bind_op_result( op, rs, mc, candidate, msgid, LDAP_BACK_DONTSEND );
500 if ( rs->sr_err != LDAP_SUCCESS ) {
504 /* If defined, proxyAuthz will be used also when
505 * back-ldap is the authorizing backend; for this
506 * purpose, a successful bind is followed by a
507 * bind with the configured identity assertion */
508 /* NOTE: use with care */
509 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) {
510 meta_back_proxy_authz_bind( mc, candidate, op, rs, LDAP_BACK_SENDERR );
511 if ( !LDAP_BACK_CONN_ISBOUND( msc ) ) {
517 ber_bvreplace( &msc->msc_bound_ndn, &op->o_req_ndn );
518 LDAP_BACK_CONN_ISBOUND_SET( msc );
519 mc->mc_authz_target = candidate;
521 if ( LDAP_BACK_SAVECRED( mi ) ) {
522 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
523 memset( msc->msc_cred.bv_val, 0,
524 msc->msc_cred.bv_len );
526 ber_bvreplace( &msc->msc_cred, &op->orb_cred );
527 ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc );
531 if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED
532 && !BER_BVISEMPTY( &op->o_req_ndn ) )
534 ( void )meta_dncache_update_entry( &mi->mi_cache,
535 &op->o_req_ndn, candidate );
539 if ( mdn.bv_val != op->o_req_dn.bv_val ) {
543 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
544 meta_back_quarantine( op, rs, candidate );
551 * meta_back_single_dobind
554 meta_back_single_dobind(
559 ldap_back_send_t sendok,
563 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
564 metatarget_t *mt = mi->mi_targets[ candidate ];
565 metaconn_t *mc = *mcp;
566 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
568 static struct berval cred = BER_BVC( "" );
571 assert( !LDAP_BACK_CONN_ISBOUND( msc ) );
573 /* NOTE: this obsoletes pseudorootdn */
574 if ( op->o_conn != NULL &&
575 !op->o_do_not_cache &&
576 ( BER_BVISNULL( &msc->msc_bound_ndn ) ||
577 BER_BVISEMPTY( &msc->msc_bound_ndn ) ||
578 ( LDAP_BACK_CONN_ISPRIV( mc ) && dn_match( &msc->msc_bound_ndn, &mt->mt_idassert_authcDN ) ) ||
579 ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) ) )
581 (void)meta_back_proxy_authz_bind( mc, candidate, op, rs, sendok );
586 /* FIXME: should we check if at least some of the op->o_ctrls
587 * can/should be passed? */
588 rs->sr_err = ldap_sasl_bind( msc->msc_ld, "", LDAP_SASL_SIMPLE, &cred,
589 NULL, NULL, &msgid );
590 rc = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok );
594 if ( rc != LDAP_SUCCESS ) {
596 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
598 LDAP_BACK_CONN_BINDING_CLEAR( msc );
599 if ( META_BACK_ONERR_STOP( mi ) ) {
600 LDAP_BACK_CONN_TAINTED_SET( mc );
601 meta_back_release_conn_lock( op, mc, 0 );
605 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
608 if ( META_BACK_ONERR_STOP( mi ) && ( sendok & LDAP_BACK_SENDERR ) ) {
609 send_ldap_result( op, rs );
613 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
614 meta_back_quarantine( op, rs, candidate );
628 ldap_back_send_t sendok )
630 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
636 SlapReply *candidates = meta_back_candidates_get( op );
638 if ( be_isroot( op ) ) {
642 Debug( LDAP_DEBUG_TRACE,
643 "%s meta_back_dobind: conn=%ld%s\n",
645 LDAP_BACK_PCONN_ID( mc ),
646 isroot ? " (isroot)" : "" );
649 * all the targets are bound as pseudoroot
651 if ( mc->mc_authz_target == META_BOUND_ALL ) {
656 for ( i = 0; i < mi->mi_ntargets; i++ ) {
657 metatarget_t *mt = mi->mi_targets[ i ];
658 metasingleconn_t *msc = &mc->mc_conns[ i ];
664 if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
668 assert( msc->msc_ld != NULL );
671 * If the target is already bound it is skipped
675 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
676 if ( LDAP_BACK_CONN_ISBOUND( msc )
677 || ( LDAP_BACK_CONN_ISANON( msc )
678 && mt->mt_idassert_authmethod == LDAP_AUTH_NONE ) )
680 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
684 } else if ( META_BACK_CONN_CREATING( msc ) || LDAP_BACK_CONN_BINDING( msc ) )
686 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
687 ldap_pvt_thread_yield();
692 LDAP_BACK_CONN_BINDING_SET( msc );
693 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
695 rc = meta_back_single_dobind( op, rs, &mc, i,
696 LDAP_BACK_DONTSEND, mt->mt_nretries, 1 );
698 * NOTE: meta_back_single_dobind() already retries;
699 * in case of failure, it resets mc...
701 if ( rc != LDAP_SUCCESS ) {
702 char buf[ SLAP_TEXT_BUFLEN ];
705 /* meta_back_single_dobind() already sent
706 * response and released connection */
711 if ( rc == LDAP_UNAVAILABLE ) {
712 /* FIXME: meta_back_retry() already re-calls
713 * meta_back_single_dobind() */
714 if ( meta_back_retry( op, rs, &mc, i, sendok ) ) {
719 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
720 LDAP_BACK_CONN_BINDING_CLEAR( msc );
721 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
722 meta_back_release_conn( op, mc );
728 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
729 LDAP_BACK_CONN_BINDING_CLEAR( msc );
730 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
732 snprintf( buf, sizeof( buf ),
733 "meta_back_dobind[%d]: (%s) err=%d (%s).",
734 i, isroot ? op->o_bd->be_rootdn.bv_val : "anonymous",
735 rc, ldap_err2string( rc ) );
736 Debug( LDAP_DEBUG_ANY,
738 op->o_log_prefix, buf, 0 );
741 * null cred bind should always succeed
742 * as anonymous, so a failure means
743 * the target is no longer candidate possibly
744 * due to technical reasons (remote host down?)
745 * so better clear the handle
747 /* leave the target candidate, but record the error for later use */
748 candidates[ i ].sr_err = rc;
749 if ( META_BACK_ONERR_STOP( mi ) ) {
758 Debug( LDAP_DEBUG_TRACE,
759 "%s meta_back_dobind[%d]: "
762 isroot ? op->o_bd->be_rootdn.bv_val : "anonymous" );
764 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
765 LDAP_BACK_CONN_BINDING_CLEAR( msc );
767 LDAP_BACK_CONN_ISBOUND_SET( msc );
769 LDAP_BACK_CONN_ISANON_SET( msc );
771 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
776 Debug( LDAP_DEBUG_TRACE,
777 "%s meta_back_dobind: conn=%ld bound=%d\n",
778 op->o_log_prefix, LDAP_BACK_PCONN_ID( mc ), bound );
781 meta_back_release_conn( op, mc );
784 if ( sendok & LDAP_BACK_SENDERR ) {
785 if ( rs->sr_err == LDAP_SUCCESS ) {
786 rs->sr_err = LDAP_BUSY;
788 send_ldap_result( op, rs );
794 return ( bound > 0 );
798 * meta_back_default_rebind
800 * This is a callback used for chasing referrals using the same
801 * credentials as the original user on this session.
804 meta_back_default_rebind(
806 LDAP_CONST char *url,
811 metasingleconn_t *msc = ( metasingleconn_t * )params;
813 return ldap_sasl_bind_s( ld, msc->msc_bound_ndn.bv_val,
814 LDAP_SASL_SIMPLE, &msc->msc_cred,
819 * meta_back_default_urllist
821 * This is a callback used for mucking with the urllist
824 meta_back_default_urllist(
826 LDAPURLDesc **urllist,
830 metatarget_t *mt = (metatarget_t *)params;
831 LDAPURLDesc **urltail;
833 if ( urllist == url ) {
837 for ( urltail = &(*url)->lud_next; *urltail; urltail = &(*urltail)->lud_next )
844 ldap_pvt_thread_mutex_lock( &mt->mt_uri_mutex );
846 ch_free( mt->mt_uri );
849 ldap_get_option( ld, LDAP_OPT_URI, (void *)&mt->mt_uri );
850 ldap_pvt_thread_mutex_unlock( &mt->mt_uri_mutex );
862 ldap_back_send_t sendok )
864 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
866 metatarget_t *mt = mi->mi_targets[ candidate ];
867 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
871 Debug( LDAP_DEBUG_TRACE, ">>> %s meta_back_cancel[%d] msgid=%d\n",
872 op->o_log_prefix, candidate, msgid );
874 /* default behavior */
875 if ( META_BACK_TGT_ABANDON( mt ) ) {
876 rc = ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
878 } else if ( META_BACK_TGT_IGNORE( mt ) ) {
879 rc = ldap_pvt_discard( msc->msc_ld, msgid );
881 } else if ( META_BACK_TGT_CANCEL( mt ) ) {
882 rc = ldap_cancel_s( msc->msc_ld, msgid, NULL, NULL );
888 Debug( LDAP_DEBUG_TRACE, "<<< %s meta_back_cancel[%d] err=%d\n",
889 op->o_log_prefix, candidate, rc );
897 * FIXME: error return must be handled in a cleaner way ...
907 ldap_back_send_t sendok )
909 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
911 const char *save_text = rs->sr_text,
912 *save_matched = rs->sr_matched;
913 BerVarray save_ref = rs->sr_ref;
914 LDAPControl **save_ctrls = rs->sr_ctrls;
915 void *matched_ctx = NULL;
917 char *matched = NULL;
920 LDAPControl **ctrls = NULL;
922 assert( mc != NULL );
925 rs->sr_matched = NULL;
929 if ( candidate != META_TARGET_NONE ) {
930 metatarget_t *mt = mi->mi_targets[ candidate ];
931 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
933 #define ERR_OK(err) ((err) == LDAP_SUCCESS || (err) == LDAP_COMPARE_FALSE || (err) == LDAP_COMPARE_TRUE)
935 if ( ERR_OK( rs->sr_err ) ) {
938 LDAPMessage *res = NULL;
939 time_t stoptime = (time_t)(-1);
940 int timeout_err = op->o_protocol >= LDAP_VERSION3 ?
941 LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER;
942 const char *timeout_text = "Operation timed out";
944 /* if timeout is not specified, compute and use
945 * the one specific to the ongoing operation */
946 if ( timeout == (time_t)(-1) ) {
947 slap_op_t opidx = slap_req2op( op->o_tag );
949 if ( opidx == SLAP_OP_SEARCH ) {
950 if ( op->ors_tlimit <= 0 ) {
954 timeout = op->ors_tlimit;
955 timeout_err = LDAP_TIMELIMIT_EXCEEDED;
960 timeout = mt->mt_timeout[ opidx ];
964 /* better than nothing :) */
965 if ( timeout == 0 ) {
966 if ( mi->mi_idle_timeout ) {
967 timeout = mi->mi_idle_timeout;
969 } else if ( mi->mi_conn_ttl ) {
970 timeout = mi->mi_conn_ttl;
975 stoptime = op->o_time + timeout;
978 LDAP_BACK_TV_SET( &tv );
981 rc = ldap_result( msc->msc_ld, msgid, LDAP_MSG_ALL, &tv, &res );
984 if ( timeout && slap_get_time() > stoptime ) {
985 (void)meta_back_cancel( mc, op, rs, msgid, candidate, sendok );
986 rs->sr_err = timeout_err;
987 rs->sr_text = timeout_text;
991 LDAP_BACK_TV_SET( &tv );
992 ldap_pvt_thread_yield();
996 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE,
1001 /* otherwise get the result; if it is not
1002 * LDAP_SUCCESS, record it in the reply
1003 * structure (this includes
1004 * LDAP_COMPARE_{TRUE|FALSE}) */
1006 /* only touch when activity actually took place... */
1007 if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) {
1008 msc->msc_time = op->o_time;
1011 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
1012 &matched, &text, &refs, &ctrls, 1 );
1015 if ( rc != LDAP_SUCCESS ) {
1018 if ( refs != NULL ) {
1021 for ( i = 0; refs[ i ] != NULL; i++ )
1023 rs->sr_ref = op->o_tmpalloc( sizeof( struct berval ) * ( i + 1 ),
1025 for ( i = 0; refs[ i ] != NULL; i++ ) {
1026 ber_str2bv( refs[ i ], 0, 0, &rs->sr_ref[ i ] );
1028 BER_BVZERO( &rs->sr_ref[ i ] );
1030 if ( ctrls != NULL ) {
1031 rs->sr_ctrls = ctrls;
1035 assert( res == NULL );
1038 /* if the error in the reply structure is not
1039 * LDAP_SUCCESS, try to map it from client
1040 * to server error */
1041 if ( !ERR_OK( rs->sr_err ) ) {
1042 rs->sr_err = slap_map_api2result( rs );
1044 /* internal ops ( op->o_conn == NULL )
1045 * must not reply to client */
1046 if ( op->o_conn && !op->o_do_not_cache && matched ) {
1048 /* record the (massaged) matched
1049 * DN into the reply structure */
1050 rs->sr_matched = matched;
1054 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
1055 meta_back_quarantine( op, rs, candidate );
1062 for ( i = 0; i < mi->mi_ntargets; i++ ) {
1063 metasingleconn_t *msc = &mc->mc_conns[ i ];
1065 char *xmatched = NULL;
1067 rs->sr_err = LDAP_SUCCESS;
1069 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE, &rs->sr_err );
1070 if ( rs->sr_err != LDAP_SUCCESS ) {
1072 * better check the type of error. In some cases
1073 * (search ?) it might be better to return a
1074 * success if at least one of the targets gave
1075 * positive result ...
1077 ldap_get_option( msc->msc_ld,
1078 LDAP_OPT_DIAGNOSTIC_MESSAGE, &xtext );
1079 if ( xtext != NULL && xtext [ 0 ] == '\0' ) {
1080 ldap_memfree( xtext );
1084 ldap_get_option( msc->msc_ld,
1085 LDAP_OPT_MATCHED_DN, &xmatched );
1086 if ( xmatched != NULL && xmatched[ 0 ] == '\0' ) {
1087 ldap_memfree( xmatched );
1091 rs->sr_err = slap_map_api2result( rs );
1093 if ( LogTest( LDAP_DEBUG_ANY ) ) {
1094 char buf[ SLAP_TEXT_BUFLEN ];
1096 snprintf( buf, sizeof( buf ),
1097 "meta_back_op_result[%d] "
1098 "err=%d text=\"%s\" matched=\"%s\"",
1100 ( xtext ? xtext : "" ),
1101 ( xmatched ? xmatched : "" ) );
1102 Debug( LDAP_DEBUG_ANY, "%s %s.\n",
1103 op->o_log_prefix, buf, 0 );
1107 * FIXME: need to rewrite "match" (need rwinfo)
1109 switch ( rs->sr_err ) {
1112 if ( xtext != NULL ) {
1114 ldap_memfree( text );
1119 if ( xmatched != NULL ) {
1121 ldap_memfree( matched );
1130 ldap_memfree( xtext );
1134 ldap_memfree( xmatched );
1138 if ( META_BACK_TGT_QUARANTINE( mi->mi_targets[ i ] ) ) {
1139 meta_back_quarantine( op, rs, i );
1143 if ( err != LDAP_SUCCESS ) {
1148 if ( matched != NULL ) {
1149 struct berval dn, pdn;
1151 ber_str2bv( matched, 0, 0, &dn );
1152 if ( dnPretty( NULL, &dn, &pdn, op->o_tmpmemctx ) == LDAP_SUCCESS ) {
1153 ldap_memfree( matched );
1154 matched_ctx = op->o_tmpmemctx;
1155 matched = pdn.bv_val;
1157 rs->sr_matched = matched;
1161 ( ( sendok & LDAP_BACK_SENDOK )
1162 || ( ( sendok & LDAP_BACK_SENDERR ) && rs->sr_err != LDAP_SUCCESS ) ) )
1164 send_ldap_result( op, rs );
1167 op->o_tmpfree( (char *)rs->sr_matched, matched_ctx );
1170 ldap_memfree( text );
1173 assert( refs != NULL );
1174 ber_memvfree( (void **)refs );
1175 op->o_tmpfree( rs->sr_ref, op->o_tmpmemctx );
1178 assert( rs->sr_ctrls != NULL );
1179 ldap_controls_free( ctrls );
1182 rs->sr_text = save_text;
1183 rs->sr_matched = save_matched;
1184 rs->sr_ref = save_ref;
1185 rs->sr_ctrls = save_ctrls;
1187 return( ERR_OK( rs->sr_err ) ? LDAP_SUCCESS : rs->sr_err );
1191 * meta_back_proxy_authz_cred()
1193 * prepares credentials & method for meta_back_proxy_authz_bind();
1194 * or, if method is SASL, performs the SASL bind directly.
1197 meta_back_proxy_authz_cred(
1202 ldap_back_send_t sendok,
1203 struct berval *binddn,
1204 struct berval *bindcred,
1207 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
1208 metatarget_t *mt = mi->mi_targets[ candidate ];
1209 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
1213 /* don't proxyAuthz if protocol is not LDAPv3 */
1214 switch ( mt->mt_version ) {
1219 if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
1225 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1226 if ( sendok & LDAP_BACK_SENDERR ) {
1227 send_ldap_result( op, rs );
1229 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1233 if ( op->o_tag == LDAP_REQ_BIND ) {
1234 ndn = op->o_req_ndn;
1236 } else if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
1237 ndn = op->o_conn->c_ndn;
1244 * FIXME: we need to let clients use proxyAuthz
1245 * otherwise we cannot do symmetric pools of servers;
1246 * we have to live with the fact that a user can
1247 * authorize itself as any ID that is allowed
1248 * by the authzTo directive of the "proxyauthzdn".
1251 * NOTE: current Proxy Authorization specification
1252 * and implementation do not allow proxy authorization
1253 * control to be provided with Bind requests
1256 * if no bind took place yet, but the connection is bound
1257 * and the "proxyauthzdn" is set, then bind as
1258 * "proxyauthzdn" and explicitly add the proxyAuthz
1259 * control to every operation with the dn bound
1260 * to the connection as control value.
1263 /* bind as proxyauthzdn only if no idassert mode
1264 * is requested, or if the client's identity
1266 switch ( mt->mt_idassert_mode ) {
1267 case LDAP_BACK_IDASSERT_LEGACY:
1268 if ( !BER_BVISNULL( &ndn ) && !BER_BVISEMPTY( &ndn ) ) {
1269 if ( !BER_BVISNULL( &mt->mt_idassert_authcDN ) && !BER_BVISEMPTY( &mt->mt_idassert_authcDN ) )
1271 *binddn = mt->mt_idassert_authcDN;
1272 *bindcred = mt->mt_idassert_passwd;
1279 /* NOTE: rootdn can always idassert */
1280 if ( BER_BVISNULL( &ndn ) && mt->mt_idassert_authz == NULL ) {
1281 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1282 rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
1283 if ( sendok & LDAP_BACK_SENDERR ) {
1284 send_ldap_result( op, rs );
1286 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1289 rs->sr_err = LDAP_SUCCESS;
1290 *binddn = slap_empty_bv;
1291 *bindcred = slap_empty_bv;
1297 } else if ( mt->mt_idassert_authz && !be_isroot( op ) ) {
1298 struct berval authcDN;
1300 if ( BER_BVISNULL( &ndn ) ) {
1301 authcDN = slap_empty_bv;
1306 rs->sr_err = slap_sasl_matches( op, mt->mt_idassert_authz,
1307 &authcDN, &authcDN );
1308 if ( rs->sr_err != LDAP_SUCCESS ) {
1309 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1310 if ( sendok & LDAP_BACK_SENDERR ) {
1311 send_ldap_result( op, rs );
1313 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1316 rs->sr_err = LDAP_SUCCESS;
1317 *binddn = slap_empty_bv;
1318 *bindcred = slap_empty_bv;
1326 *binddn = mt->mt_idassert_authcDN;
1327 *bindcred = mt->mt_idassert_passwd;
1332 if ( dobind && mt->mt_idassert_authmethod == LDAP_AUTH_SASL ) {
1333 #ifdef HAVE_CYRUS_SASL
1334 void *defaults = NULL;
1335 struct berval authzID = BER_BVNULL;
1338 /* if SASL supports native authz, prepare for it */
1339 if ( ( !op->o_do_not_cache || !op->o_is_auth_check ) &&
1340 ( mt->mt_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) )
1342 switch ( mt->mt_idassert_mode ) {
1343 case LDAP_BACK_IDASSERT_OTHERID:
1344 case LDAP_BACK_IDASSERT_OTHERDN:
1345 authzID = mt->mt_idassert_authzID;
1348 case LDAP_BACK_IDASSERT_ANONYMOUS:
1349 BER_BVSTR( &authzID, "dn:" );
1352 case LDAP_BACK_IDASSERT_SELF:
1353 if ( BER_BVISNULL( &ndn ) ) {
1354 /* connection is not authc'd, so don't idassert */
1355 BER_BVSTR( &authzID, "dn:" );
1358 authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len;
1359 authzID.bv_val = slap_sl_malloc( authzID.bv_len + 1, op->o_tmpmemctx );
1360 AC_MEMCPY( authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
1361 AC_MEMCPY( authzID.bv_val + STRLENOF( "dn:" ),
1362 ndn.bv_val, ndn.bv_len + 1 );
1371 if ( mt->mt_idassert_secprops != NULL ) {
1372 rs->sr_err = ldap_set_option( msc->msc_ld,
1373 LDAP_OPT_X_SASL_SECPROPS,
1374 (void *)mt->mt_idassert_secprops );
1376 if ( rs->sr_err != LDAP_OPT_SUCCESS ) {
1377 rs->sr_err = LDAP_OTHER;
1378 if ( sendok & LDAP_BACK_SENDERR ) {
1379 send_ldap_result( op, rs );
1381 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1386 defaults = lutil_sasl_defaults( msc->msc_ld,
1387 mt->mt_idassert_sasl_mech.bv_val,
1388 mt->mt_idassert_sasl_realm.bv_val,
1389 mt->mt_idassert_authcID.bv_val,
1390 mt->mt_idassert_passwd.bv_val,
1393 rs->sr_err = ldap_sasl_interactive_bind_s( msc->msc_ld, binddn->bv_val,
1394 mt->mt_idassert_sasl_mech.bv_val, NULL, NULL,
1395 LDAP_SASL_QUIET, lutil_sasl_interact,
1398 rs->sr_err = slap_map_api2result( rs );
1399 if ( rs->sr_err != LDAP_SUCCESS ) {
1400 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1401 if ( sendok & LDAP_BACK_SENDERR ) {
1402 send_ldap_result( op, rs );
1406 LDAP_BACK_CONN_ISBOUND_SET( msc );
1409 lutil_sasl_freedefs( defaults );
1411 slap_sl_free( authzID.bv_val, op->o_tmpmemctx );
1415 #endif /* HAVE_CYRUS_SASL */
1418 *method = mt->mt_idassert_authmethod;
1419 switch ( mt->mt_idassert_authmethod ) {
1420 case LDAP_AUTH_NONE:
1421 BER_BVSTR( binddn, "" );
1422 BER_BVSTR( bindcred, "" );
1425 case LDAP_AUTH_SIMPLE:
1430 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1431 rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED;
1432 if ( sendok & LDAP_BACK_SENDERR ) {
1433 send_ldap_result( op, rs );
1443 meta_back_proxy_authz_bind( metaconn_t *mc, int candidate, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
1445 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
1446 metatarget_t *mt = mi->mi_targets[ candidate ];
1447 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
1448 struct berval binddn = BER_BVC( "" ),
1449 cred = BER_BVC( "" );
1450 int method = LDAP_AUTH_NONE,
1453 rc = meta_back_proxy_authz_cred( mc, candidate, op, rs, sendok, &binddn, &cred, &method );
1454 if ( rc == LDAP_SUCCESS && !LDAP_BACK_CONN_ISBOUND( msc ) ) {
1458 case LDAP_AUTH_NONE:
1459 case LDAP_AUTH_SIMPLE:
1460 rs->sr_err = ldap_sasl_bind( msc->msc_ld,
1461 binddn.bv_val, LDAP_SASL_SIMPLE,
1462 &cred, NULL, NULL, &msgid );
1463 rc = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok );
1464 if ( rc == LDAP_SUCCESS ) {
1465 /* set rebind stuff in case of successful proxyAuthz bind,
1466 * so that referral chasing is attempted using the right
1468 LDAP_BACK_CONN_ISBOUND_SET( msc );
1469 ber_bvreplace( &msc->msc_bound_ndn, &binddn );
1471 if ( LDAP_BACK_SAVECRED( mi ) ) {
1472 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
1473 memset( msc->msc_cred.bv_val, 0,
1474 msc->msc_cred.bv_len );
1476 ber_bvreplace( &msc->msc_cred, &cred );
1477 ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc );
1488 return LDAP_BACK_CONN_ISBOUND( msc );