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 ( !LDAP_BACK_PCONN_ISPRIV( mc )
209 && !dn_match( &op->o_req_ndn, &mc->mc_local_ndn ) )
214 /* wait for all other ops to release the connection */
216 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
217 if ( mc->mc_refcnt > 1 ) {
218 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
219 ldap_pvt_thread_yield();
223 assert( mc->mc_refcnt == 1 );
224 #if META_BACK_PRINT_CONNTREE > 0
225 meta_back_print_conntree( mi, ">>> meta_back_bind" );
226 #endif /* META_BACK_PRINT_CONNTREE */
227 tmpmc = avl_delete( &mi->mi_conninfo.lai_tree, (caddr_t)mc,
228 meta_back_conndn_cmp );
229 assert( tmpmc == mc );
231 /* delete all cached connections with the current connection */
232 if ( LDAP_BACK_SINGLECONN( mi ) ) {
233 while ( ( tmpmc = avl_delete( &mi->mi_conninfo.lai_tree, (caddr_t)mc, meta_back_conn_cmp ) ) != NULL )
235 Debug( LDAP_DEBUG_TRACE,
236 "=>meta_back_bind: destroying conn %ld (refcnt=%u)\n",
237 LDAP_BACK_PCONN_ID( mc ), mc->mc_refcnt, 0 );
239 if ( tmpmc->mc_refcnt != 0 ) {
241 LDAP_BACK_CONN_TAINTED_SET( tmpmc );
245 * Needs a test because the handler may be corrupted,
246 * and calling ldap_unbind on a corrupted header results
247 * in a segmentation fault
249 meta_back_conn_free( tmpmc );
254 ber_bvreplace( &mc->mc_local_ndn, &op->o_req_ndn );
256 LDAP_BACK_CONN_ISPRIV_SET( mc );
257 LDAP_BACK_PCONN_SET( mc, op );
259 lerr = avl_insert( &mi->mi_conninfo.lai_tree, (caddr_t)mc,
260 meta_back_conndn_cmp, meta_back_conndn_dup );
261 #if META_BACK_PRINT_CONNTREE > 0
262 meta_back_print_conntree( mi, "<<< meta_back_bind" );
263 #endif /* META_BACK_PRINT_CONNTREE */
264 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
266 /* we can do this because mc_refcnt == 1 */
267 assert( mc->mc_refcnt == 1 );
269 meta_back_conn_free( mc );
276 meta_back_release_conn( mi, mc );
280 * rc is LDAP_SUCCESS if at least one bind succeeded,
281 * err is the last error that occurred during a bind;
282 * if at least (and at most?) one bind succeeds, fine.
284 if ( rc != LDAP_SUCCESS ) {
287 * deal with bind failure ...
291 * no target was found within the naming context,
292 * so bind must fail with invalid credentials
294 if ( rs->sr_err == LDAP_SUCCESS && gotit == 0 ) {
295 rs->sr_err = LDAP_INVALID_CREDENTIALS;
297 rs->sr_err = slap_map_api2result( rs );
299 send_ldap_result( op, rs );
308 meta_back_bind_op_result(
314 ldap_back_send_t sendok )
316 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
317 metatarget_t *mt = mi->mi_targets[ candidate ];
318 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
322 int nretries = mt->mt_nretries;
323 char buf[ SLAP_TEXT_BUFLEN ];
325 Debug( LDAP_DEBUG_TRACE,
326 ">>> %s meta_back_bind_op_result[%d]\n",
327 op->o_log_prefix, candidate, 0 );
329 if ( rs->sr_err == LDAP_SUCCESS ) {
330 time_t stoptime = (time_t)(-1),
332 int timeout_err = op->o_protocol >= LDAP_VERSION3 ?
333 LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER;
334 const char *timeout_text = "Operation timed out";
335 slap_op_t opidx = slap_req2op( op->o_tag );
337 /* since timeout is not specified, compute and use
338 * the one specific to the ongoing operation */
339 if ( opidx == LDAP_REQ_SEARCH ) {
340 if ( op->ors_tlimit <= 0 ) {
344 timeout = op->ors_tlimit;
345 timeout_err = LDAP_TIMELIMIT_EXCEEDED;
350 timeout = mt->mt_timeout[ opidx ];
353 /* better than nothing :) */
354 if ( timeout == 0 ) {
355 if ( mi->mi_idle_timeout ) {
356 timeout = mi->mi_idle_timeout;
358 } else if ( mi->mi_conn_ttl ) {
359 timeout = mi->mi_conn_ttl;
364 stoptime = op->o_time + timeout;
367 LDAP_BACK_TV_SET( &tv );
373 rc = ldap_result( msc->msc_ld, msgid, LDAP_MSG_ALL, &tv, &res );
376 if ( nretries != META_RETRY_NEVER
377 || ( timeout && slap_get_time() <= stoptime ) )
379 ldap_pvt_thread_yield();
380 if ( nretries > 0 ) {
383 tv = mt->mt_bind_timeout;
387 /* don't let anyone else use this handler,
388 * because there's a pending bind that will not
390 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
391 assert( LDAP_BACK_CONN_BINDING( msc ) );
394 Debug( LDAP_DEBUG_ANY, "### %s meta_back_bind_op_result ldap_unbind_ext[%d] ld=%p\n",
395 op->o_log_prefix, candidate, (void *)msc->msc_ld );
396 #endif /* DEBUG_205 */
398 meta_clear_one_candidate( op, mc, candidate );
399 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
401 rs->sr_err = timeout_err;
402 rs->sr_text = timeout_text;
406 ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER,
409 snprintf( buf, sizeof( buf ),
410 "err=%d (%s) nretries=%d",
411 rs->sr_err, ldap_err2string( rs->sr_err ), nretries );
412 Debug( LDAP_DEBUG_ANY,
413 "### %s meta_back_bind_op_result[%d]: %s.\n",
414 op->o_log_prefix, candidate, buf );
418 /* only touch when activity actually took place... */
419 if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) {
420 msc->msc_time = op->o_time;
423 /* FIXME: matched? referrals? response controls? */
424 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
425 NULL, NULL, NULL, NULL, 1 );
426 if ( rc != LDAP_SUCCESS ) {
433 rs->sr_err = slap_map_api2result( rs );
435 Debug( LDAP_DEBUG_TRACE,
436 "<<< %s meta_back_bind_op_result[%d] err=%d\n",
437 op->o_log_prefix, candidate, rs->sr_err );
443 * meta_back_single_bind
445 * attempts to perform a bind with creds
448 meta_back_single_bind(
454 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
455 metatarget_t *mt = mi->mi_targets[ candidate ];
456 struct berval mdn = BER_BVNULL;
457 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
461 if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
462 ch_free( msc->msc_bound_ndn.bv_val );
463 BER_BVZERO( &msc->msc_bound_ndn );
466 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
467 /* destroy sensitive data */
468 memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len );
469 ch_free( msc->msc_cred.bv_val );
470 BER_BVZERO( &msc->msc_cred );
474 * Rewrite the bind dn if needed
477 dc.conn = op->o_conn;
481 if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
482 rs->sr_text = "DN rewrite error";
483 rs->sr_err = LDAP_OTHER;
487 /* FIXME: this fixes the bind problem right now; we need
488 * to use the asynchronous version to get the "matched"
489 * and more in case of failure ... */
490 /* FIXME: should we check if at least some of the op->o_ctrls
491 * can/should be passed? */
493 rs->sr_err = ldap_sasl_bind( msc->msc_ld, mdn.bv_val,
494 LDAP_SASL_SIMPLE, &op->orb_cred,
495 op->o_ctrls, NULL, &msgid );
496 if ( rs->sr_err != LDAP_X_CONNECTING ) {
499 ldap_pvt_thread_yield();
501 meta_back_bind_op_result( op, rs, mc, candidate, msgid, LDAP_BACK_DONTSEND );
502 if ( rs->sr_err != LDAP_SUCCESS ) {
506 /* If defined, proxyAuthz will be used also when
507 * back-ldap is the authorizing backend; for this
508 * purpose, a successful bind is followed by a
509 * bind with the configured identity assertion */
510 /* NOTE: use with care */
511 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) {
512 meta_back_proxy_authz_bind( mc, candidate, op, rs, LDAP_BACK_SENDERR );
513 if ( !LDAP_BACK_CONN_ISBOUND( msc ) ) {
519 ber_bvreplace( &msc->msc_bound_ndn, &op->o_req_ndn );
520 LDAP_BACK_CONN_ISBOUND_SET( msc );
521 mc->mc_authz_target = candidate;
523 if ( LDAP_BACK_SAVECRED( mi ) ) {
524 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
525 memset( msc->msc_cred.bv_val, 0,
526 msc->msc_cred.bv_len );
528 ber_bvreplace( &msc->msc_cred, &op->orb_cred );
529 ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc );
533 if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED
534 && !BER_BVISEMPTY( &op->o_req_ndn ) )
536 ( void )meta_dncache_update_entry( &mi->mi_cache,
537 &op->o_req_ndn, candidate );
541 if ( mdn.bv_val != op->o_req_dn.bv_val ) {
545 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
546 meta_back_quarantine( op, rs, candidate );
553 * meta_back_single_dobind
556 meta_back_single_dobind(
561 ldap_back_send_t sendok,
565 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
566 metatarget_t *mt = mi->mi_targets[ candidate ];
567 metaconn_t *mc = *mcp;
568 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
569 static struct berval cred = BER_BVC( "" );
572 assert( !LDAP_BACK_CONN_ISBOUND( msc ) );
574 /* NOTE: this obsoletes pseudorootdn */
575 if ( op->o_conn != NULL &&
576 !op->o_do_not_cache &&
577 ( BER_BVISNULL( &msc->msc_bound_ndn ) ||
578 BER_BVISEMPTY( &msc->msc_bound_ndn ) ||
579 ( LDAP_BACK_CONN_ISPRIV( mc ) && dn_match( &msc->msc_bound_ndn, &mt->mt_idassert_authcDN ) ) ||
580 ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) ) )
582 (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? */
589 rs->sr_err = ldap_sasl_bind( msc->msc_ld,
590 "", LDAP_SASL_SIMPLE, &cred,
591 NULL, NULL, &msgid );
592 if ( rs->sr_err != LDAP_X_CONNECTING ) {
595 ldap_pvt_thread_yield();
598 rs->sr_err = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok );
601 if ( rs->sr_err != LDAP_SUCCESS ) {
603 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
605 LDAP_BACK_CONN_BINDING_CLEAR( msc );
606 if ( META_BACK_ONERR_STOP( mi ) ) {
607 LDAP_BACK_CONN_TAINTED_SET( mc );
608 meta_back_release_conn_lock( mi, mc, 0 );
612 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
616 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
617 meta_back_quarantine( op, rs, candidate );
631 ldap_back_send_t sendok )
633 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
639 SlapReply *candidates = meta_back_candidates_get( op );
641 if ( be_isroot( op ) ) {
645 Debug( LDAP_DEBUG_TRACE,
646 "%s meta_back_dobind: conn=%ld%s\n",
648 LDAP_BACK_PCONN_ID( mc ),
649 isroot ? " (isroot)" : "" );
652 * all the targets are bound as pseudoroot
654 if ( mc->mc_authz_target == META_BOUND_ALL ) {
659 for ( i = 0; i < mi->mi_ntargets; i++ ) {
660 metatarget_t *mt = mi->mi_targets[ i ];
661 metasingleconn_t *msc = &mc->mc_conns[ i ];
667 if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
671 assert( msc->msc_ld != NULL );
674 * If the target is already bound it is skipped
678 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
679 if ( LDAP_BACK_CONN_ISBOUND( msc )
680 || ( LDAP_BACK_CONN_ISANON( msc )
681 && mt->mt_idassert_authmethod == LDAP_AUTH_NONE ) )
683 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
687 } else if ( META_BACK_CONN_CREATING( msc ) || LDAP_BACK_CONN_BINDING( msc ) )
689 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
690 ldap_pvt_thread_yield();
695 LDAP_BACK_CONN_BINDING_SET( msc );
696 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
698 rc = meta_back_single_dobind( op, rs, &mc, i,
699 LDAP_BACK_DONTSEND, mt->mt_nretries, 1 );
701 * NOTE: meta_back_single_dobind() already retries;
702 * in case of failure, it resets mc...
704 if ( rc != LDAP_SUCCESS ) {
705 char buf[ SLAP_TEXT_BUFLEN ];
708 /* meta_back_single_dobind() already sent
709 * response and released connection */
714 if ( rc == LDAP_UNAVAILABLE ) {
715 /* FIXME: meta_back_retry() already re-calls
716 * meta_back_single_dobind() */
717 if ( meta_back_retry( op, rs, &mc, i, sendok ) ) {
722 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
723 LDAP_BACK_CONN_BINDING_CLEAR( msc );
724 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
725 meta_back_release_conn( mi, mc );
731 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
732 LDAP_BACK_CONN_BINDING_CLEAR( msc );
733 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
735 snprintf( buf, sizeof( buf ),
736 "meta_back_dobind[%d]: (%s) err=%d (%s).",
737 i, isroot ? op->o_bd->be_rootdn.bv_val : "anonymous",
738 rc, ldap_err2string( rc ) );
739 Debug( LDAP_DEBUG_ANY,
741 op->o_log_prefix, buf, 0 );
744 * null cred bind should always succeed
745 * as anonymous, so a failure means
746 * the target is no longer candidate possibly
747 * due to technical reasons (remote host down?)
748 * so better clear the handle
750 /* leave the target candidate, but record the error for later use */
751 candidates[ i ].sr_err = rc;
752 if ( META_BACK_ONERR_STOP( mi ) ) {
761 Debug( LDAP_DEBUG_TRACE,
762 "%s meta_back_dobind[%d]: "
765 isroot ? op->o_bd->be_rootdn.bv_val : "anonymous" );
767 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
768 LDAP_BACK_CONN_BINDING_CLEAR( msc );
770 LDAP_BACK_CONN_ISBOUND_SET( msc );
772 LDAP_BACK_CONN_ISANON_SET( msc );
774 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
779 Debug( LDAP_DEBUG_TRACE,
780 "%s meta_back_dobind: conn=%ld bound=%d\n",
781 op->o_log_prefix, LDAP_BACK_PCONN_ID( mc ), bound );
784 meta_back_release_conn( mi, mc );
787 if ( sendok & LDAP_BACK_SENDERR ) {
788 if ( rs->sr_err == LDAP_SUCCESS ) {
789 rs->sr_err = LDAP_BUSY;
791 send_ldap_result( op, rs );
797 return ( bound > 0 );
801 * meta_back_default_rebind
803 * This is a callback used for chasing referrals using the same
804 * credentials as the original user on this session.
807 meta_back_default_rebind(
809 LDAP_CONST char *url,
814 metasingleconn_t *msc = ( metasingleconn_t * )params;
816 return ldap_sasl_bind_s( ld, msc->msc_bound_ndn.bv_val,
817 LDAP_SASL_SIMPLE, &msc->msc_cred,
822 * meta_back_default_urllist
824 * This is a callback used for mucking with the urllist
827 meta_back_default_urllist(
829 LDAPURLDesc **urllist,
833 metatarget_t *mt = (metatarget_t *)params;
834 LDAPURLDesc **urltail;
836 if ( urllist == url ) {
840 for ( urltail = &(*url)->lud_next; *urltail; urltail = &(*urltail)->lud_next )
847 ldap_pvt_thread_mutex_lock( &mt->mt_uri_mutex );
849 ch_free( mt->mt_uri );
852 ldap_get_option( ld, LDAP_OPT_URI, (void *)&mt->mt_uri );
853 ldap_pvt_thread_mutex_unlock( &mt->mt_uri_mutex );
865 ldap_back_send_t sendok )
867 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
869 metatarget_t *mt = mi->mi_targets[ candidate ];
870 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
874 Debug( LDAP_DEBUG_TRACE, ">>> %s meta_back_cancel[%d] msgid=%d\n",
875 op->o_log_prefix, candidate, msgid );
877 /* default behavior */
878 if ( META_BACK_TGT_ABANDON( mt ) ) {
879 rc = ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
881 } else if ( META_BACK_TGT_IGNORE( mt ) ) {
882 rc = ldap_pvt_discard( msc->msc_ld, msgid );
884 } else if ( META_BACK_TGT_CANCEL( mt ) ) {
885 rc = ldap_cancel_s( msc->msc_ld, msgid, NULL, NULL );
891 Debug( LDAP_DEBUG_TRACE, "<<< %s meta_back_cancel[%d] err=%d\n",
892 op->o_log_prefix, candidate, rc );
900 * FIXME: error return must be handled in a cleaner way ...
910 ldap_back_send_t sendok )
912 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
914 const char *save_text = rs->sr_text,
915 *save_matched = rs->sr_matched;
916 BerVarray save_ref = rs->sr_ref;
917 LDAPControl **save_ctrls = rs->sr_ctrls;
918 void *matched_ctx = NULL;
920 char *matched = NULL;
923 LDAPControl **ctrls = NULL;
925 assert( mc != NULL );
928 rs->sr_matched = NULL;
932 if ( candidate != META_TARGET_NONE ) {
933 metatarget_t *mt = mi->mi_targets[ candidate ];
934 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
936 #define ERR_OK(err) ((err) == LDAP_SUCCESS || (err) == LDAP_COMPARE_FALSE || (err) == LDAP_COMPARE_TRUE)
938 if ( ERR_OK( rs->sr_err ) ) {
941 LDAPMessage *res = NULL;
942 time_t stoptime = (time_t)(-1);
943 int timeout_err = op->o_protocol >= LDAP_VERSION3 ?
944 LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER;
945 const char *timeout_text = "Operation timed out";
947 /* if timeout is not specified, compute and use
948 * the one specific to the ongoing operation */
949 if ( timeout == (time_t)(-1) ) {
950 slap_op_t opidx = slap_req2op( op->o_tag );
952 if ( opidx == SLAP_OP_SEARCH ) {
953 if ( op->ors_tlimit <= 0 ) {
957 timeout = op->ors_tlimit;
958 timeout_err = LDAP_TIMELIMIT_EXCEEDED;
963 timeout = mt->mt_timeout[ opidx ];
967 /* better than nothing :) */
968 if ( timeout == 0 ) {
969 if ( mi->mi_idle_timeout ) {
970 timeout = mi->mi_idle_timeout;
972 } else if ( mi->mi_conn_ttl ) {
973 timeout = mi->mi_conn_ttl;
978 stoptime = op->o_time + timeout;
981 LDAP_BACK_TV_SET( &tv );
984 rc = ldap_result( msc->msc_ld, msgid, LDAP_MSG_ALL, &tv, &res );
987 if ( timeout && slap_get_time() > stoptime ) {
988 (void)meta_back_cancel( mc, op, rs, msgid, candidate, sendok );
989 rs->sr_err = timeout_err;
990 rs->sr_text = timeout_text;
994 LDAP_BACK_TV_SET( &tv );
995 ldap_pvt_thread_yield();
999 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE,
1004 /* otherwise get the result; if it is not
1005 * LDAP_SUCCESS, record it in the reply
1006 * structure (this includes
1007 * LDAP_COMPARE_{TRUE|FALSE}) */
1009 /* only touch when activity actually took place... */
1010 if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) {
1011 msc->msc_time = op->o_time;
1014 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
1015 &matched, &text, &refs, &ctrls, 1 );
1018 if ( rc != LDAP_SUCCESS ) {
1021 if ( refs != NULL ) {
1024 for ( i = 0; refs[ i ] != NULL; i++ )
1026 rs->sr_ref = op->o_tmpalloc( sizeof( struct berval ) * ( i + 1 ),
1028 for ( i = 0; refs[ i ] != NULL; i++ ) {
1029 ber_str2bv( refs[ i ], 0, 0, &rs->sr_ref[ i ] );
1031 BER_BVZERO( &rs->sr_ref[ i ] );
1033 if ( ctrls != NULL ) {
1034 rs->sr_ctrls = ctrls;
1038 assert( res == NULL );
1041 /* if the error in the reply structure is not
1042 * LDAP_SUCCESS, try to map it from client
1043 * to server error */
1044 if ( !ERR_OK( rs->sr_err ) ) {
1045 rs->sr_err = slap_map_api2result( rs );
1047 /* internal ops ( op->o_conn == NULL )
1048 * must not reply to client */
1049 if ( op->o_conn && !op->o_do_not_cache && matched ) {
1051 /* record the (massaged) matched
1052 * DN into the reply structure */
1053 rs->sr_matched = matched;
1057 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
1058 meta_back_quarantine( op, rs, candidate );
1065 for ( i = 0; i < mi->mi_ntargets; i++ ) {
1066 metasingleconn_t *msc = &mc->mc_conns[ i ];
1068 char *xmatched = NULL;
1070 rs->sr_err = LDAP_SUCCESS;
1072 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE, &rs->sr_err );
1073 if ( rs->sr_err != LDAP_SUCCESS ) {
1075 * better check the type of error. In some cases
1076 * (search ?) it might be better to return a
1077 * success if at least one of the targets gave
1078 * positive result ...
1080 ldap_get_option( msc->msc_ld,
1081 LDAP_OPT_DIAGNOSTIC_MESSAGE, &xtext );
1082 if ( xtext != NULL && xtext [ 0 ] == '\0' ) {
1083 ldap_memfree( xtext );
1087 ldap_get_option( msc->msc_ld,
1088 LDAP_OPT_MATCHED_DN, &xmatched );
1089 if ( xmatched != NULL && xmatched[ 0 ] == '\0' ) {
1090 ldap_memfree( xmatched );
1094 rs->sr_err = slap_map_api2result( rs );
1096 if ( LogTest( LDAP_DEBUG_ANY ) ) {
1097 char buf[ SLAP_TEXT_BUFLEN ];
1099 snprintf( buf, sizeof( buf ),
1100 "meta_back_op_result[%d] "
1101 "err=%d text=\"%s\" matched=\"%s\"",
1103 ( xtext ? xtext : "" ),
1104 ( xmatched ? xmatched : "" ) );
1105 Debug( LDAP_DEBUG_ANY, "%s %s.\n",
1106 op->o_log_prefix, buf, 0 );
1110 * FIXME: need to rewrite "match" (need rwinfo)
1112 switch ( rs->sr_err ) {
1115 if ( xtext != NULL ) {
1117 ldap_memfree( text );
1122 if ( xmatched != NULL ) {
1124 ldap_memfree( matched );
1133 ldap_memfree( xtext );
1137 ldap_memfree( xmatched );
1141 if ( META_BACK_TGT_QUARANTINE( mi->mi_targets[ i ] ) ) {
1142 meta_back_quarantine( op, rs, i );
1146 if ( err != LDAP_SUCCESS ) {
1151 if ( matched != NULL ) {
1152 struct berval dn, pdn;
1154 ber_str2bv( matched, 0, 0, &dn );
1155 if ( dnPretty( NULL, &dn, &pdn, op->o_tmpmemctx ) == LDAP_SUCCESS ) {
1156 ldap_memfree( matched );
1157 matched_ctx = op->o_tmpmemctx;
1158 matched = pdn.bv_val;
1160 rs->sr_matched = matched;
1164 ( ( sendok & LDAP_BACK_SENDOK )
1165 || ( ( sendok & LDAP_BACK_SENDERR ) && rs->sr_err != LDAP_SUCCESS ) ) )
1167 send_ldap_result( op, rs );
1170 op->o_tmpfree( (char *)rs->sr_matched, matched_ctx );
1173 ldap_memfree( text );
1176 assert( refs != NULL );
1177 ber_memvfree( (void **)refs );
1178 op->o_tmpfree( rs->sr_ref, op->o_tmpmemctx );
1181 assert( rs->sr_ctrls != NULL );
1182 ldap_controls_free( ctrls );
1185 rs->sr_text = save_text;
1186 rs->sr_matched = save_matched;
1187 rs->sr_ref = save_ref;
1188 rs->sr_ctrls = save_ctrls;
1190 return( ERR_OK( rs->sr_err ) ? LDAP_SUCCESS : rs->sr_err );
1194 * meta_back_proxy_authz_cred()
1196 * prepares credentials & method for meta_back_proxy_authz_bind();
1197 * or, if method is SASL, performs the SASL bind directly.
1200 meta_back_proxy_authz_cred(
1205 ldap_back_send_t sendok,
1206 struct berval *binddn,
1207 struct berval *bindcred,
1210 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
1211 metatarget_t *mt = mi->mi_targets[ candidate ];
1212 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
1216 /* don't proxyAuthz if protocol is not LDAPv3 */
1217 switch ( mt->mt_version ) {
1222 if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
1228 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1229 if ( sendok & LDAP_BACK_SENDERR ) {
1230 send_ldap_result( op, rs );
1232 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1236 if ( op->o_tag == LDAP_REQ_BIND ) {
1237 ndn = op->o_req_ndn;
1239 } else if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
1240 ndn = op->o_conn->c_ndn;
1247 * FIXME: we need to let clients use proxyAuthz
1248 * otherwise we cannot do symmetric pools of servers;
1249 * we have to live with the fact that a user can
1250 * authorize itself as any ID that is allowed
1251 * by the authzTo directive of the "proxyauthzdn".
1254 * NOTE: current Proxy Authorization specification
1255 * and implementation do not allow proxy authorization
1256 * control to be provided with Bind requests
1259 * if no bind took place yet, but the connection is bound
1260 * and the "proxyauthzdn" is set, then bind as
1261 * "proxyauthzdn" and explicitly add the proxyAuthz
1262 * control to every operation with the dn bound
1263 * to the connection as control value.
1266 /* bind as proxyauthzdn only if no idassert mode
1267 * is requested, or if the client's identity
1269 switch ( mt->mt_idassert_mode ) {
1270 case LDAP_BACK_IDASSERT_LEGACY:
1271 if ( !BER_BVISNULL( &ndn ) && !BER_BVISEMPTY( &ndn ) ) {
1272 if ( !BER_BVISNULL( &mt->mt_idassert_authcDN ) && !BER_BVISEMPTY( &mt->mt_idassert_authcDN ) )
1274 *binddn = mt->mt_idassert_authcDN;
1275 *bindcred = mt->mt_idassert_passwd;
1282 /* NOTE: rootdn can always idassert */
1283 if ( BER_BVISNULL( &ndn )
1284 && mt->mt_idassert_authz == NULL
1285 && !( mt->mt_idassert_flags & LDAP_BACK_AUTH_AUTHZ_ALL ) )
1287 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1288 rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
1289 if ( sendok & LDAP_BACK_SENDERR ) {
1290 send_ldap_result( op, rs );
1292 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1297 rs->sr_err = LDAP_SUCCESS;
1298 *binddn = slap_empty_bv;
1299 *bindcred = slap_empty_bv;
1302 } else if ( mt->mt_idassert_authz && !be_isroot( op ) ) {
1303 struct berval authcDN;
1305 if ( BER_BVISNULL( &ndn ) ) {
1306 authcDN = slap_empty_bv;
1311 rs->sr_err = slap_sasl_matches( op, mt->mt_idassert_authz,
1312 &authcDN, &authcDN );
1313 if ( rs->sr_err != LDAP_SUCCESS ) {
1314 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1315 if ( sendok & LDAP_BACK_SENDERR ) {
1316 send_ldap_result( op, rs );
1318 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1322 rs->sr_err = LDAP_SUCCESS;
1323 *binddn = slap_empty_bv;
1324 *bindcred = slap_empty_bv;
1329 *binddn = mt->mt_idassert_authcDN;
1330 *bindcred = mt->mt_idassert_passwd;
1335 if ( dobind && mt->mt_idassert_authmethod == LDAP_AUTH_SASL ) {
1336 #ifdef HAVE_CYRUS_SASL
1337 void *defaults = NULL;
1338 struct berval authzID = BER_BVNULL;
1341 /* if SASL supports native authz, prepare for it */
1342 if ( ( !op->o_do_not_cache || !op->o_is_auth_check ) &&
1343 ( mt->mt_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) )
1345 switch ( mt->mt_idassert_mode ) {
1346 case LDAP_BACK_IDASSERT_OTHERID:
1347 case LDAP_BACK_IDASSERT_OTHERDN:
1348 authzID = mt->mt_idassert_authzID;
1351 case LDAP_BACK_IDASSERT_ANONYMOUS:
1352 BER_BVSTR( &authzID, "dn:" );
1355 case LDAP_BACK_IDASSERT_SELF:
1356 if ( BER_BVISNULL( &ndn ) ) {
1357 /* connection is not authc'd, so don't idassert */
1358 BER_BVSTR( &authzID, "dn:" );
1361 authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len;
1362 authzID.bv_val = slap_sl_malloc( authzID.bv_len + 1, op->o_tmpmemctx );
1363 AC_MEMCPY( authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
1364 AC_MEMCPY( authzID.bv_val + STRLENOF( "dn:" ),
1365 ndn.bv_val, ndn.bv_len + 1 );
1374 if ( mt->mt_idassert_secprops != NULL ) {
1375 rs->sr_err = ldap_set_option( msc->msc_ld,
1376 LDAP_OPT_X_SASL_SECPROPS,
1377 (void *)mt->mt_idassert_secprops );
1379 if ( rs->sr_err != LDAP_OPT_SUCCESS ) {
1380 rs->sr_err = LDAP_OTHER;
1381 if ( sendok & LDAP_BACK_SENDERR ) {
1382 send_ldap_result( op, rs );
1384 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1389 defaults = lutil_sasl_defaults( msc->msc_ld,
1390 mt->mt_idassert_sasl_mech.bv_val,
1391 mt->mt_idassert_sasl_realm.bv_val,
1392 mt->mt_idassert_authcID.bv_val,
1393 mt->mt_idassert_passwd.bv_val,
1396 rs->sr_err = ldap_sasl_interactive_bind_s( msc->msc_ld, binddn->bv_val,
1397 mt->mt_idassert_sasl_mech.bv_val, NULL, NULL,
1398 LDAP_SASL_QUIET, lutil_sasl_interact,
1401 rs->sr_err = slap_map_api2result( rs );
1402 if ( rs->sr_err != LDAP_SUCCESS ) {
1403 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1404 if ( sendok & LDAP_BACK_SENDERR ) {
1405 send_ldap_result( op, rs );
1409 LDAP_BACK_CONN_ISBOUND_SET( msc );
1412 lutil_sasl_freedefs( defaults );
1414 slap_sl_free( authzID.bv_val, op->o_tmpmemctx );
1418 #endif /* HAVE_CYRUS_SASL */
1421 *method = mt->mt_idassert_authmethod;
1422 switch ( mt->mt_idassert_authmethod ) {
1423 case LDAP_AUTH_NONE:
1424 BER_BVSTR( binddn, "" );
1425 BER_BVSTR( bindcred, "" );
1428 case LDAP_AUTH_SIMPLE:
1433 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1434 rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED;
1435 if ( sendok & LDAP_BACK_SENDERR ) {
1436 send_ldap_result( op, rs );
1446 meta_back_proxy_authz_bind( metaconn_t *mc, int candidate, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
1448 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
1449 metatarget_t *mt = mi->mi_targets[ candidate ];
1450 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
1451 struct berval binddn = BER_BVC( "" ),
1452 cred = BER_BVC( "" );
1453 int method = LDAP_AUTH_NONE,
1456 rc = meta_back_proxy_authz_cred( mc, candidate, op, rs, sendok, &binddn, &cred, &method );
1457 if ( rc == LDAP_SUCCESS && !LDAP_BACK_CONN_ISBOUND( msc ) ) {
1461 case LDAP_AUTH_NONE:
1462 case LDAP_AUTH_SIMPLE:
1464 rs->sr_err = ldap_sasl_bind( msc->msc_ld,
1465 binddn.bv_val, LDAP_SASL_SIMPLE,
1466 &cred, NULL, NULL, &msgid );
1467 if ( rs->sr_err != LDAP_X_CONNECTING ) {
1470 ldap_pvt_thread_yield();
1472 rc = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok );
1473 if ( rc == LDAP_SUCCESS ) {
1474 /* set rebind stuff in case of successful proxyAuthz bind,
1475 * so that referral chasing is attempted using the right
1477 LDAP_BACK_CONN_ISBOUND_SET( msc );
1478 ber_bvreplace( &msc->msc_bound_ndn, &binddn );
1480 if ( LDAP_BACK_SAVECRED( mi ) ) {
1481 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
1482 memset( msc->msc_cred.bv_val, 0,
1483 msc->msc_cred.bv_len );
1485 ber_bvreplace( &msc->msc_cred, &cred );
1486 ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc );
1497 return LDAP_BACK_CONN_ISBOUND( msc );