2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1999-2007 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 );
374 if ( nretries != META_RETRY_NEVER
375 || ( timeout && slap_get_time() <= stoptime ) )
377 ldap_pvt_thread_yield();
378 if ( nretries > 0 ) {
381 tv = mt->mt_bind_timeout;
385 /* don't let anyone else use this handler,
386 * because there's a pending bind that will not
388 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
389 assert( LDAP_BACK_CONN_BINDING( msc ) );
392 Debug( LDAP_DEBUG_ANY, "### %s meta_back_bind_op_result ldap_unbind_ext[%d] ld=%p\n",
393 op->o_log_prefix, candidate, (void *)msc->msc_ld );
394 #endif /* DEBUG_205 */
396 meta_clear_one_candidate( op, mc, candidate );
397 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
399 rs->sr_err = timeout_err;
400 rs->sr_text = timeout_text;
404 ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER,
407 snprintf( buf, sizeof( buf ),
408 "err=%d (%s) nretries=%d",
409 rs->sr_err, ldap_err2string( rs->sr_err ), nretries );
410 Debug( LDAP_DEBUG_ANY,
411 "### %s meta_back_bind_op_result[%d]: %s.\n",
412 op->o_log_prefix, candidate, buf );
416 /* only touch when activity actually took place... */
417 if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) {
418 msc->msc_time = op->o_time;
421 /* FIXME: matched? referrals? response controls? */
422 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
423 NULL, NULL, NULL, NULL, 1 );
424 if ( rc != LDAP_SUCCESS ) {
431 rs->sr_err = slap_map_api2result( rs );
433 Debug( LDAP_DEBUG_TRACE,
434 "<<< %s meta_back_bind_op_result[%d] err=%d\n",
435 op->o_log_prefix, candidate, rs->sr_err );
441 * meta_back_single_bind
443 * attempts to perform a bind with creds
446 meta_back_single_bind(
452 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
453 metatarget_t *mt = mi->mi_targets[ candidate ];
454 struct berval mdn = BER_BVNULL;
455 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
459 if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
460 ch_free( msc->msc_bound_ndn.bv_val );
461 BER_BVZERO( &msc->msc_bound_ndn );
464 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
465 /* destroy sensitive data */
466 memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len );
467 ch_free( msc->msc_cred.bv_val );
468 BER_BVZERO( &msc->msc_cred );
472 * Rewrite the bind dn if needed
475 dc.conn = op->o_conn;
479 if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
480 rs->sr_text = "DN rewrite error";
481 rs->sr_err = LDAP_OTHER;
485 /* FIXME: this fixes the bind problem right now; we need
486 * to use the asynchronous version to get the "matched"
487 * and more in case of failure ... */
488 /* FIXME: should we check if at least some of the op->o_ctrls
489 * can/should be passed? */
491 rs->sr_err = ldap_sasl_bind( msc->msc_ld, mdn.bv_val,
492 LDAP_SASL_SIMPLE, &op->orb_cred,
493 op->o_ctrls, NULL, &msgid );
494 if ( rs->sr_err != LDAP_X_CONNECTING ) {
497 ldap_pvt_thread_yield();
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 ];
567 static struct berval cred = BER_BVC( "" );
570 assert( !LDAP_BACK_CONN_ISBOUND( msc ) );
572 /* NOTE: this obsoletes pseudorootdn */
573 if ( op->o_conn != NULL &&
574 !op->o_do_not_cache &&
575 ( BER_BVISNULL( &msc->msc_bound_ndn ) ||
576 BER_BVISEMPTY( &msc->msc_bound_ndn ) ||
577 ( LDAP_BACK_CONN_ISPRIV( mc ) && dn_match( &msc->msc_bound_ndn, &mt->mt_idassert_authcDN ) ) ||
578 ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) ) )
580 (void)meta_back_proxy_authz_bind( mc, candidate, op, rs, sendok );
584 /* FIXME: should we check if at least some of the op->o_ctrls
585 * can/should be passed? */
587 rs->sr_err = ldap_sasl_bind( msc->msc_ld,
588 "", LDAP_SASL_SIMPLE, &cred,
589 NULL, NULL, &msgid );
590 if ( rs->sr_err != LDAP_X_CONNECTING ) {
593 ldap_pvt_thread_yield();
596 rs->sr_err = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok );
599 if ( rs->sr_err != LDAP_SUCCESS ) {
601 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
603 LDAP_BACK_CONN_BINDING_CLEAR( msc );
604 if ( META_BACK_ONERR_STOP( mi ) ) {
605 LDAP_BACK_CONN_TAINTED_SET( mc );
606 meta_back_release_conn_lock( op, mc, 0 );
610 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
614 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
615 meta_back_quarantine( op, rs, candidate );
629 ldap_back_send_t sendok )
631 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
637 SlapReply *candidates = meta_back_candidates_get( op );
639 if ( be_isroot( op ) ) {
643 Debug( LDAP_DEBUG_TRACE,
644 "%s meta_back_dobind: conn=%ld%s\n",
646 LDAP_BACK_PCONN_ID( mc ),
647 isroot ? " (isroot)" : "" );
650 * all the targets are bound as pseudoroot
652 if ( mc->mc_authz_target == META_BOUND_ALL ) {
657 for ( i = 0; i < mi->mi_ntargets; i++ ) {
658 metatarget_t *mt = mi->mi_targets[ i ];
659 metasingleconn_t *msc = &mc->mc_conns[ i ];
665 if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
669 assert( msc->msc_ld != NULL );
672 * If the target is already bound it is skipped
676 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
677 if ( LDAP_BACK_CONN_ISBOUND( msc )
678 || ( LDAP_BACK_CONN_ISANON( msc )
679 && mt->mt_idassert_authmethod == LDAP_AUTH_NONE ) )
681 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
685 } else if ( META_BACK_CONN_CREATING( msc ) || LDAP_BACK_CONN_BINDING( msc ) )
687 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
688 ldap_pvt_thread_yield();
693 LDAP_BACK_CONN_BINDING_SET( msc );
694 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
696 rc = meta_back_single_dobind( op, rs, &mc, i,
697 LDAP_BACK_DONTSEND, mt->mt_nretries, 1 );
699 * NOTE: meta_back_single_dobind() already retries;
700 * in case of failure, it resets mc...
702 if ( rc != LDAP_SUCCESS ) {
703 char buf[ SLAP_TEXT_BUFLEN ];
706 /* meta_back_single_dobind() already sent
707 * response and released connection */
712 if ( rc == LDAP_UNAVAILABLE ) {
713 /* FIXME: meta_back_retry() already re-calls
714 * meta_back_single_dobind() */
715 if ( meta_back_retry( op, rs, &mc, i, sendok ) ) {
720 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
721 LDAP_BACK_CONN_BINDING_CLEAR( msc );
722 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
723 meta_back_release_conn( op, mc );
729 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
730 LDAP_BACK_CONN_BINDING_CLEAR( msc );
731 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
733 snprintf( buf, sizeof( buf ),
734 "meta_back_dobind[%d]: (%s) err=%d (%s).",
735 i, isroot ? op->o_bd->be_rootdn.bv_val : "anonymous",
736 rc, ldap_err2string( rc ) );
737 Debug( LDAP_DEBUG_ANY,
739 op->o_log_prefix, buf, 0 );
742 * null cred bind should always succeed
743 * as anonymous, so a failure means
744 * the target is no longer candidate possibly
745 * due to technical reasons (remote host down?)
746 * so better clear the handle
748 /* leave the target candidate, but record the error for later use */
749 candidates[ i ].sr_err = rc;
750 if ( META_BACK_ONERR_STOP( mi ) ) {
759 Debug( LDAP_DEBUG_TRACE,
760 "%s meta_back_dobind[%d]: "
763 isroot ? op->o_bd->be_rootdn.bv_val : "anonymous" );
765 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
766 LDAP_BACK_CONN_BINDING_CLEAR( msc );
768 LDAP_BACK_CONN_ISBOUND_SET( msc );
770 LDAP_BACK_CONN_ISANON_SET( msc );
772 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
777 Debug( LDAP_DEBUG_TRACE,
778 "%s meta_back_dobind: conn=%ld bound=%d\n",
779 op->o_log_prefix, LDAP_BACK_PCONN_ID( mc ), bound );
782 meta_back_release_conn( op, mc );
785 if ( sendok & LDAP_BACK_SENDERR ) {
786 if ( rs->sr_err == LDAP_SUCCESS ) {
787 rs->sr_err = LDAP_BUSY;
789 send_ldap_result( op, rs );
795 return ( bound > 0 );
799 * meta_back_default_rebind
801 * This is a callback used for chasing referrals using the same
802 * credentials as the original user on this session.
805 meta_back_default_rebind(
807 LDAP_CONST char *url,
812 metasingleconn_t *msc = ( metasingleconn_t * )params;
814 return ldap_sasl_bind_s( ld, msc->msc_bound_ndn.bv_val,
815 LDAP_SASL_SIMPLE, &msc->msc_cred,
820 * meta_back_default_urllist
822 * This is a callback used for mucking with the urllist
825 meta_back_default_urllist(
827 LDAPURLDesc **urllist,
831 metatarget_t *mt = (metatarget_t *)params;
832 LDAPURLDesc **urltail;
834 if ( urllist == url ) {
838 for ( urltail = &(*url)->lud_next; *urltail; urltail = &(*urltail)->lud_next )
845 ldap_pvt_thread_mutex_lock( &mt->mt_uri_mutex );
847 ch_free( mt->mt_uri );
850 ldap_get_option( ld, LDAP_OPT_URI, (void *)&mt->mt_uri );
851 ldap_pvt_thread_mutex_unlock( &mt->mt_uri_mutex );
863 ldap_back_send_t sendok )
865 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
867 metatarget_t *mt = mi->mi_targets[ candidate ];
868 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
872 Debug( LDAP_DEBUG_TRACE, ">>> %s meta_back_cancel[%d] msgid=%d\n",
873 op->o_log_prefix, candidate, msgid );
875 /* default behavior */
876 if ( META_BACK_TGT_ABANDON( mt ) ) {
877 rc = ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
879 } else if ( META_BACK_TGT_IGNORE( mt ) ) {
880 rc = ldap_pvt_discard( msc->msc_ld, msgid );
882 } else if ( META_BACK_TGT_CANCEL( mt ) ) {
883 rc = ldap_cancel_s( msc->msc_ld, msgid, NULL, NULL );
889 Debug( LDAP_DEBUG_TRACE, "<<< %s meta_back_cancel[%d] err=%d\n",
890 op->o_log_prefix, candidate, rc );
898 * FIXME: error return must be handled in a cleaner way ...
908 ldap_back_send_t sendok )
910 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
912 const char *save_text = rs->sr_text,
913 *save_matched = rs->sr_matched;
914 BerVarray save_ref = rs->sr_ref;
915 LDAPControl **save_ctrls = rs->sr_ctrls;
916 void *matched_ctx = NULL;
918 char *matched = NULL;
921 LDAPControl **ctrls = NULL;
923 assert( mc != NULL );
926 rs->sr_matched = NULL;
930 if ( candidate != META_TARGET_NONE ) {
931 metatarget_t *mt = mi->mi_targets[ candidate ];
932 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
934 #define ERR_OK(err) ((err) == LDAP_SUCCESS || (err) == LDAP_COMPARE_FALSE || (err) == LDAP_COMPARE_TRUE)
936 if ( ERR_OK( rs->sr_err ) ) {
939 LDAPMessage *res = NULL;
940 time_t stoptime = (time_t)(-1);
941 int timeout_err = op->o_protocol >= LDAP_VERSION3 ?
942 LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER;
943 const char *timeout_text = "Operation timed out";
945 /* if timeout is not specified, compute and use
946 * the one specific to the ongoing operation */
947 if ( timeout == (time_t)(-1) ) {
948 slap_op_t opidx = slap_req2op( op->o_tag );
950 if ( opidx == SLAP_OP_SEARCH ) {
951 if ( op->ors_tlimit <= 0 ) {
955 timeout = op->ors_tlimit;
956 timeout_err = LDAP_TIMELIMIT_EXCEEDED;
961 timeout = mt->mt_timeout[ opidx ];
965 /* better than nothing :) */
966 if ( timeout == 0 ) {
967 if ( mi->mi_idle_timeout ) {
968 timeout = mi->mi_idle_timeout;
970 } else if ( mi->mi_conn_ttl ) {
971 timeout = mi->mi_conn_ttl;
976 stoptime = op->o_time + timeout;
979 LDAP_BACK_TV_SET( &tv );
982 rc = ldap_result( msc->msc_ld, msgid, LDAP_MSG_ALL, &tv, &res );
985 if ( timeout && slap_get_time() > stoptime ) {
986 (void)meta_back_cancel( mc, op, rs, msgid, candidate, sendok );
987 rs->sr_err = timeout_err;
988 rs->sr_text = timeout_text;
992 LDAP_BACK_TV_SET( &tv );
993 ldap_pvt_thread_yield();
997 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE,
1002 /* otherwise get the result; if it is not
1003 * LDAP_SUCCESS, record it in the reply
1004 * structure (this includes
1005 * LDAP_COMPARE_{TRUE|FALSE}) */
1007 /* only touch when activity actually took place... */
1008 if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) {
1009 msc->msc_time = op->o_time;
1012 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
1013 &matched, &text, &refs, &ctrls, 1 );
1016 if ( rc != LDAP_SUCCESS ) {
1019 if ( refs != NULL ) {
1022 for ( i = 0; refs[ i ] != NULL; i++ )
1024 rs->sr_ref = op->o_tmpalloc( sizeof( struct berval ) * ( i + 1 ),
1026 for ( i = 0; refs[ i ] != NULL; i++ ) {
1027 ber_str2bv( refs[ i ], 0, 0, &rs->sr_ref[ i ] );
1029 BER_BVZERO( &rs->sr_ref[ i ] );
1031 if ( ctrls != NULL ) {
1032 rs->sr_ctrls = ctrls;
1036 assert( res == NULL );
1039 /* if the error in the reply structure is not
1040 * LDAP_SUCCESS, try to map it from client
1041 * to server error */
1042 if ( !ERR_OK( rs->sr_err ) ) {
1043 rs->sr_err = slap_map_api2result( rs );
1045 /* internal ops ( op->o_conn == NULL )
1046 * must not reply to client */
1047 if ( op->o_conn && !op->o_do_not_cache && matched ) {
1049 /* record the (massaged) matched
1050 * DN into the reply structure */
1051 rs->sr_matched = matched;
1055 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
1056 meta_back_quarantine( op, rs, candidate );
1063 for ( i = 0; i < mi->mi_ntargets; i++ ) {
1064 metasingleconn_t *msc = &mc->mc_conns[ i ];
1066 char *xmatched = NULL;
1068 rs->sr_err = LDAP_SUCCESS;
1070 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE, &rs->sr_err );
1071 if ( rs->sr_err != LDAP_SUCCESS ) {
1073 * better check the type of error. In some cases
1074 * (search ?) it might be better to return a
1075 * success if at least one of the targets gave
1076 * positive result ...
1078 ldap_get_option( msc->msc_ld,
1079 LDAP_OPT_DIAGNOSTIC_MESSAGE, &xtext );
1080 if ( xtext != NULL && xtext [ 0 ] == '\0' ) {
1081 ldap_memfree( xtext );
1085 ldap_get_option( msc->msc_ld,
1086 LDAP_OPT_MATCHED_DN, &xmatched );
1087 if ( xmatched != NULL && xmatched[ 0 ] == '\0' ) {
1088 ldap_memfree( xmatched );
1092 rs->sr_err = slap_map_api2result( rs );
1094 if ( LogTest( LDAP_DEBUG_ANY ) ) {
1095 char buf[ SLAP_TEXT_BUFLEN ];
1097 snprintf( buf, sizeof( buf ),
1098 "meta_back_op_result[%d] "
1099 "err=%d text=\"%s\" matched=\"%s\"",
1101 ( xtext ? xtext : "" ),
1102 ( xmatched ? xmatched : "" ) );
1103 Debug( LDAP_DEBUG_ANY, "%s %s.\n",
1104 op->o_log_prefix, buf, 0 );
1108 * FIXME: need to rewrite "match" (need rwinfo)
1110 switch ( rs->sr_err ) {
1113 if ( xtext != NULL ) {
1115 ldap_memfree( text );
1120 if ( xmatched != NULL ) {
1122 ldap_memfree( matched );
1131 ldap_memfree( xtext );
1135 ldap_memfree( xmatched );
1139 if ( META_BACK_TGT_QUARANTINE( mi->mi_targets[ i ] ) ) {
1140 meta_back_quarantine( op, rs, i );
1144 if ( err != LDAP_SUCCESS ) {
1149 if ( matched != NULL ) {
1150 struct berval dn, pdn;
1152 ber_str2bv( matched, 0, 0, &dn );
1153 if ( dnPretty( NULL, &dn, &pdn, op->o_tmpmemctx ) == LDAP_SUCCESS ) {
1154 ldap_memfree( matched );
1155 matched_ctx = op->o_tmpmemctx;
1156 matched = pdn.bv_val;
1158 rs->sr_matched = matched;
1162 ( ( sendok & LDAP_BACK_SENDOK )
1163 || ( ( sendok & LDAP_BACK_SENDERR ) && rs->sr_err != LDAP_SUCCESS ) ) )
1165 send_ldap_result( op, rs );
1168 op->o_tmpfree( (char *)rs->sr_matched, matched_ctx );
1171 ldap_memfree( text );
1174 assert( refs != NULL );
1175 ber_memvfree( (void **)refs );
1176 op->o_tmpfree( rs->sr_ref, op->o_tmpmemctx );
1179 assert( rs->sr_ctrls != NULL );
1180 ldap_controls_free( ctrls );
1183 rs->sr_text = save_text;
1184 rs->sr_matched = save_matched;
1185 rs->sr_ref = save_ref;
1186 rs->sr_ctrls = save_ctrls;
1188 return( ERR_OK( rs->sr_err ) ? LDAP_SUCCESS : rs->sr_err );
1192 * meta_back_proxy_authz_cred()
1194 * prepares credentials & method for meta_back_proxy_authz_bind();
1195 * or, if method is SASL, performs the SASL bind directly.
1198 meta_back_proxy_authz_cred(
1203 ldap_back_send_t sendok,
1204 struct berval *binddn,
1205 struct berval *bindcred,
1208 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
1209 metatarget_t *mt = mi->mi_targets[ candidate ];
1210 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
1214 /* don't proxyAuthz if protocol is not LDAPv3 */
1215 switch ( mt->mt_version ) {
1220 if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
1226 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1227 if ( sendok & LDAP_BACK_SENDERR ) {
1228 send_ldap_result( op, rs );
1230 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1234 if ( op->o_tag == LDAP_REQ_BIND ) {
1235 ndn = op->o_req_ndn;
1237 } else if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
1238 ndn = op->o_conn->c_ndn;
1245 * FIXME: we need to let clients use proxyAuthz
1246 * otherwise we cannot do symmetric pools of servers;
1247 * we have to live with the fact that a user can
1248 * authorize itself as any ID that is allowed
1249 * by the authzTo directive of the "proxyauthzdn".
1252 * NOTE: current Proxy Authorization specification
1253 * and implementation do not allow proxy authorization
1254 * control to be provided with Bind requests
1257 * if no bind took place yet, but the connection is bound
1258 * and the "proxyauthzdn" is set, then bind as
1259 * "proxyauthzdn" and explicitly add the proxyAuthz
1260 * control to every operation with the dn bound
1261 * to the connection as control value.
1264 /* bind as proxyauthzdn only if no idassert mode
1265 * is requested, or if the client's identity
1267 switch ( mt->mt_idassert_mode ) {
1268 case LDAP_BACK_IDASSERT_LEGACY:
1269 if ( !BER_BVISNULL( &ndn ) && !BER_BVISEMPTY( &ndn ) ) {
1270 if ( !BER_BVISNULL( &mt->mt_idassert_authcDN ) && !BER_BVISEMPTY( &mt->mt_idassert_authcDN ) )
1272 *binddn = mt->mt_idassert_authcDN;
1273 *bindcred = mt->mt_idassert_passwd;
1280 /* NOTE: rootdn can always idassert */
1281 if ( BER_BVISNULL( &ndn ) && mt->mt_idassert_authz == NULL ) {
1282 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1283 rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
1284 if ( sendok & LDAP_BACK_SENDERR ) {
1285 send_ldap_result( op, rs );
1287 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1290 rs->sr_err = LDAP_SUCCESS;
1291 *binddn = slap_empty_bv;
1292 *bindcred = slap_empty_bv;
1298 } else if ( mt->mt_idassert_authz && !be_isroot( op ) ) {
1299 struct berval authcDN;
1301 if ( BER_BVISNULL( &ndn ) ) {
1302 authcDN = slap_empty_bv;
1307 rs->sr_err = slap_sasl_matches( op, mt->mt_idassert_authz,
1308 &authcDN, &authcDN );
1309 if ( rs->sr_err != LDAP_SUCCESS ) {
1310 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1311 if ( sendok & LDAP_BACK_SENDERR ) {
1312 send_ldap_result( op, rs );
1314 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1317 rs->sr_err = LDAP_SUCCESS;
1318 *binddn = slap_empty_bv;
1319 *bindcred = slap_empty_bv;
1327 *binddn = mt->mt_idassert_authcDN;
1328 *bindcred = mt->mt_idassert_passwd;
1333 if ( dobind && mt->mt_idassert_authmethod == LDAP_AUTH_SASL ) {
1334 #ifdef HAVE_CYRUS_SASL
1335 void *defaults = NULL;
1336 struct berval authzID = BER_BVNULL;
1339 /* if SASL supports native authz, prepare for it */
1340 if ( ( !op->o_do_not_cache || !op->o_is_auth_check ) &&
1341 ( mt->mt_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) )
1343 switch ( mt->mt_idassert_mode ) {
1344 case LDAP_BACK_IDASSERT_OTHERID:
1345 case LDAP_BACK_IDASSERT_OTHERDN:
1346 authzID = mt->mt_idassert_authzID;
1349 case LDAP_BACK_IDASSERT_ANONYMOUS:
1350 BER_BVSTR( &authzID, "dn:" );
1353 case LDAP_BACK_IDASSERT_SELF:
1354 if ( BER_BVISNULL( &ndn ) ) {
1355 /* connection is not authc'd, so don't idassert */
1356 BER_BVSTR( &authzID, "dn:" );
1359 authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len;
1360 authzID.bv_val = slap_sl_malloc( authzID.bv_len + 1, op->o_tmpmemctx );
1361 AC_MEMCPY( authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
1362 AC_MEMCPY( authzID.bv_val + STRLENOF( "dn:" ),
1363 ndn.bv_val, ndn.bv_len + 1 );
1372 if ( mt->mt_idassert_secprops != NULL ) {
1373 rs->sr_err = ldap_set_option( msc->msc_ld,
1374 LDAP_OPT_X_SASL_SECPROPS,
1375 (void *)mt->mt_idassert_secprops );
1377 if ( rs->sr_err != LDAP_OPT_SUCCESS ) {
1378 rs->sr_err = LDAP_OTHER;
1379 if ( sendok & LDAP_BACK_SENDERR ) {
1380 send_ldap_result( op, rs );
1382 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1387 defaults = lutil_sasl_defaults( msc->msc_ld,
1388 mt->mt_idassert_sasl_mech.bv_val,
1389 mt->mt_idassert_sasl_realm.bv_val,
1390 mt->mt_idassert_authcID.bv_val,
1391 mt->mt_idassert_passwd.bv_val,
1394 rs->sr_err = ldap_sasl_interactive_bind_s( msc->msc_ld, binddn->bv_val,
1395 mt->mt_idassert_sasl_mech.bv_val, NULL, NULL,
1396 LDAP_SASL_QUIET, lutil_sasl_interact,
1399 rs->sr_err = slap_map_api2result( rs );
1400 if ( rs->sr_err != LDAP_SUCCESS ) {
1401 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1402 if ( sendok & LDAP_BACK_SENDERR ) {
1403 send_ldap_result( op, rs );
1407 LDAP_BACK_CONN_ISBOUND_SET( msc );
1410 lutil_sasl_freedefs( defaults );
1412 slap_sl_free( authzID.bv_val, op->o_tmpmemctx );
1416 #endif /* HAVE_CYRUS_SASL */
1419 *method = mt->mt_idassert_authmethod;
1420 switch ( mt->mt_idassert_authmethod ) {
1421 case LDAP_AUTH_NONE:
1422 BER_BVSTR( binddn, "" );
1423 BER_BVSTR( bindcred, "" );
1426 case LDAP_AUTH_SIMPLE:
1431 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1432 rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED;
1433 if ( sendok & LDAP_BACK_SENDERR ) {
1434 send_ldap_result( op, rs );
1444 meta_back_proxy_authz_bind( metaconn_t *mc, int candidate, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
1446 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
1447 metatarget_t *mt = mi->mi_targets[ candidate ];
1448 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
1449 struct berval binddn = BER_BVC( "" ),
1450 cred = BER_BVC( "" );
1451 int method = LDAP_AUTH_NONE,
1454 rc = meta_back_proxy_authz_cred( mc, candidate, op, rs, sendok, &binddn, &cred, &method );
1455 if ( rc == LDAP_SUCCESS && !LDAP_BACK_CONN_ISBOUND( msc ) ) {
1459 case LDAP_AUTH_NONE:
1460 case LDAP_AUTH_SIMPLE:
1462 rs->sr_err = ldap_sasl_bind( msc->msc_ld,
1463 binddn.bv_val, LDAP_SASL_SIMPLE,
1464 &cred, NULL, NULL, &msgid );
1465 if ( rs->sr_err != LDAP_X_CONNECTING ) {
1468 ldap_pvt_thread_yield();
1470 rc = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok );
1471 if ( rc == LDAP_SUCCESS ) {
1472 /* set rebind stuff in case of successful proxyAuthz bind,
1473 * so that referral chasing is attempted using the right
1475 LDAP_BACK_CONN_ISBOUND_SET( msc );
1476 ber_bvreplace( &msc->msc_bound_ndn, &binddn );
1478 if ( LDAP_BACK_SAVECRED( mi ) ) {
1479 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
1480 memset( msc->msc_cred.bv_val, 0,
1481 msc->msc_cred.bv_len );
1483 ber_bvreplace( &msc->msc_cred, &cred );
1484 ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc );
1495 return LDAP_BACK_CONN_ISBOUND( msc );