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"
37 #include "lutil_ldap.h"
40 meta_back_proxy_authz_bind(
45 ldap_back_send_t sendok );
48 meta_back_single_bind(
55 meta_back_bind( Operation *op, SlapReply *rs )
57 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
58 metaconn_t *mc = NULL;
65 SlapReply *candidates = meta_back_candidates_get( op );
67 rs->sr_err = LDAP_SUCCESS;
69 Debug( LDAP_DEBUG_ARGS, "%s meta_back_bind: dn=\"%s\".\n",
70 op->o_log_prefix, op->o_req_dn.bv_val, 0 );
72 /* the test on the bind method should be superfluous */
73 if ( op->orb_method == LDAP_AUTH_SIMPLE
74 && be_isroot_dn( op->o_bd, &op->o_req_ndn ) )
76 if ( !be_isroot_pw( op ) ) {
77 rs->sr_err = LDAP_INVALID_CREDENTIALS;
79 send_ldap_result( op, rs );
83 if ( META_BACK_DEFER_ROOTDN_BIND( mi ) ) {
84 rs->sr_err = LDAP_SUCCESS;
86 /* frontend will return success */
93 /* we need meta_back_getconn() not send result even on error,
94 * because we want to intercept the error and make it
95 * invalidCredentials */
96 mc = meta_back_getconn( op, rs, NULL, LDAP_BACK_BIND_DONTSEND );
98 if ( LogTest( LDAP_DEBUG_ANY ) ) {
99 char buf[ SLAP_TEXT_BUFLEN ];
101 snprintf( buf, sizeof( buf ),
102 "meta_back_bind: no target "
103 "for dn \"%s\" (%d%s%s).",
104 op->o_req_dn.bv_val, rs->sr_err,
105 rs->sr_text ? ". " : "",
106 rs->sr_text ? rs->sr_text : "" );
107 Debug( LDAP_DEBUG_ANY,
109 op->o_log_prefix, buf, 0 );
112 /* FIXME: there might be cases where we don't want
113 * to map the error onto invalidCredentials */
114 switch ( rs->sr_err ) {
115 case LDAP_NO_SUCH_OBJECT:
116 case LDAP_UNWILLING_TO_PERFORM:
117 rs->sr_err = LDAP_INVALID_CREDENTIALS;
121 send_ldap_result( op, rs );
126 * Each target is scanned ...
128 mc->mc_authz_target = META_BOUND_NONE;
129 for ( i = 0; i < mi->mi_ntargets; i++ ) {
130 metatarget_t *mt = mi->mi_targets[ i ];
134 * Skip non-candidates
136 if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
141 /* set rc to LDAP_SUCCESS only if at least
142 * one candidate has been tried */
146 } else if ( isroot == 0 ) {
148 * A bind operation is expected to have
149 * ONE CANDIDATE ONLY!
151 Debug( LDAP_DEBUG_ANY,
152 "### %s meta_back_bind: more than one"
153 " candidate selected...\n",
154 op->o_log_prefix, 0, 0 );
158 if ( mt->mt_idassert_authmethod == LDAP_AUTH_NONE
159 || BER_BVISNULL( &mt->mt_idassert_authcDN ) )
161 metasingleconn_t *msc = &mc->mc_conns[ i ];
163 /* skip the target if no pseudorootdn is provided */
164 if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
165 ch_free( msc->msc_bound_ndn.bv_val );
166 BER_BVZERO( &msc->msc_bound_ndn );
169 if ( LDAP_BACK_SAVECRED( mi ) &&
170 !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->mi_conninfo.lai_tree, ">>> 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 mc->mc_conn = LDAP_BACK_PCONN_SET( op );
256 lerr = avl_insert( &mi->mi_conninfo.lai_tree, (caddr_t)mc,
257 meta_back_conndn_cmp, meta_back_conndn_dup );
258 #if META_BACK_PRINT_CONNTREE > 0
259 meta_back_print_conntree( mi->mi_conninfo.lai_tree, "<<< meta_back_bind" );
260 #endif /* META_BACK_PRINT_CONNTREE */
261 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
263 meta_clear_candidates( op, mc );
265 /* we can do this because 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 ldap_unbind_ext( msc->msc_ld, NULL, NULL );
397 LDAP_BACK_CONN_BINDING_CLEAR( msc );
398 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
400 rs->sr_err = timeout_err;
401 rs->sr_text = timeout_text;
405 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE,
408 snprintf( buf, sizeof( buf ),
409 "err=%d (%s) nretries=%d",
410 rs->sr_err, ldap_err2string( rs->sr_err ), nretries );
411 Debug( LDAP_DEBUG_ANY,
412 "### %s meta_back_bind_op_result[%d]: %s.\n",
413 op->o_log_prefix, candidate, buf );
417 /* only touch when activity actually took place... */
418 if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) {
419 msc->msc_time = op->o_time;
422 /* FIXME: matched? referrals? response controls? */
423 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
424 NULL, NULL, NULL, NULL, 1 );
425 if ( rc != LDAP_SUCCESS ) {
432 rs->sr_err = slap_map_api2result( rs );
434 Debug( LDAP_DEBUG_TRACE,
435 "<<< %s meta_back_bind_op_result[%d] err=%d\n",
436 op->o_log_prefix, candidate, rs->sr_err );
442 * meta_back_single_bind
444 * attempts to perform a bind with creds
447 meta_back_single_bind(
453 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
454 metatarget_t *mt = mi->mi_targets[ candidate ];
455 struct berval mdn = BER_BVNULL;
456 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
460 if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
461 ch_free( msc->msc_bound_ndn.bv_val );
462 BER_BVZERO( &msc->msc_bound_ndn );
465 if ( LDAP_BACK_SAVECRED( mi ) && !BER_BVISNULL( &msc->msc_cred ) ) {
466 /* destroy sensitive data */
467 memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len );
468 ch_free( msc->msc_cred.bv_val );
469 BER_BVZERO( &msc->msc_cred );
473 * Rewrite the bind dn if needed
476 dc.conn = op->o_conn;
480 if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
481 rs->sr_text = "DN rewrite error";
482 rs->sr_err = LDAP_OTHER;
486 /* FIXME: this fixes the bind problem right now; we need
487 * to use the asynchronous version to get the "matched"
488 * and more in case of failure ... */
489 /* FIXME: should we check if at least some of the op->o_ctrls
490 * 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 meta_back_bind_op_result( op, rs, mc, candidate, msgid, LDAP_BACK_DONTSEND );
495 if ( rs->sr_err != LDAP_SUCCESS ) {
499 /* If defined, proxyAuthz will be used also when
500 * back-ldap is the authorizing backend; for this
501 * purpose, a successful bind is followed by a
502 * bind with the configured identity assertion */
503 /* NOTE: use with care */
504 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) {
505 meta_back_proxy_authz_bind( mc, candidate, op, rs, LDAP_BACK_SENDERR );
506 if ( !LDAP_BACK_CONN_ISBOUND( msc ) ) {
512 ber_bvreplace( &msc->msc_bound_ndn, &op->o_req_ndn );
513 LDAP_BACK_CONN_ISBOUND_SET( msc );
514 mc->mc_authz_target = candidate;
516 if ( LDAP_BACK_SAVECRED( mi ) ) {
517 ber_bvreplace( &msc->msc_cred, &op->orb_cred );
518 ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc );
522 if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED
523 && !BER_BVISEMPTY( &op->o_req_ndn ) )
525 ( void )meta_dncache_update_entry( &mi->mi_cache,
526 &op->o_req_ndn, candidate );
530 if ( mdn.bv_val != op->o_req_dn.bv_val ) {
534 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
535 meta_back_quarantine( op, rs, candidate );
542 * meta_back_single_dobind
545 meta_back_single_dobind(
550 ldap_back_send_t sendok,
554 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
555 metatarget_t *mt = mi->mi_targets[ candidate ];
556 metaconn_t *mc = *mcp;
557 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
559 static struct berval cred = BER_BVC( "" );
562 assert( !LDAP_BACK_CONN_ISBOUND( msc ) );
564 /* NOTE: this obsoletes pseudorootdn */
565 if ( op->o_conn != NULL &&
566 !op->o_do_not_cache &&
567 ( BER_BVISNULL( &msc->msc_bound_ndn ) ||
568 BER_BVISEMPTY( &msc->msc_bound_ndn ) ||
569 ( LDAP_BACK_CONN_ISPRIV( msc ) && dn_match( &msc->msc_bound_ndn, &mt->mt_idassert_authcDN ) ) ||
570 ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) ) )
572 (void)meta_back_proxy_authz_bind( mc, candidate, op, rs, sendok );
577 /* FIXME: should we check if at least some of the op->o_ctrls
578 * can/should be passed? */
579 rs->sr_err = ldap_sasl_bind( msc->msc_ld, "", LDAP_SASL_SIMPLE, &cred,
580 NULL, NULL, &msgid );
581 rc = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok );
585 if ( rc != LDAP_SUCCESS ) {
587 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
589 LDAP_BACK_CONN_BINDING_CLEAR( msc );
590 if ( META_BACK_ONERR_STOP( mi ) ) {
591 LDAP_BACK_CONN_TAINTED_SET( mc );
592 meta_back_release_conn_lock( op, mc, 0 );
596 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
599 if ( META_BACK_ONERR_STOP( mi ) && ( sendok & LDAP_BACK_SENDERR ) ) {
600 send_ldap_result( op, rs );
604 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
605 meta_back_quarantine( op, rs, candidate );
619 ldap_back_send_t sendok )
621 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
627 SlapReply *candidates = meta_back_candidates_get( op );
629 if ( be_isroot( op ) ) {
633 Debug( LDAP_DEBUG_TRACE,
634 "%s meta_back_dobind: conn=%ld%s\n",
636 LDAP_BACK_PCONN_ID( mc ),
637 isroot ? " (isroot)" : "" );
640 * all the targets are bound as pseudoroot
642 if ( mc->mc_authz_target == META_BOUND_ALL ) {
647 for ( i = 0; i < mi->mi_ntargets; i++ ) {
648 metatarget_t *mt = mi->mi_targets[ i ];
649 metasingleconn_t *msc = &mc->mc_conns[ i ];
655 if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
659 assert( msc->msc_ld != NULL );
662 * If the target is already bound it is skipped
666 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
667 if ( LDAP_BACK_CONN_ISBOUND( msc )
668 || ( LDAP_BACK_CONN_ISANON( msc )
669 && mt->mt_idassert_authmethod == LDAP_AUTH_NONE ) )
671 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
675 } else if ( LDAP_BACK_CONN_BINDING( msc ) ) {
676 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
677 ldap_pvt_thread_yield();
682 LDAP_BACK_CONN_BINDING_SET( msc );
683 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
685 rc = meta_back_single_dobind( op, rs, &mc, i,
686 LDAP_BACK_DONTSEND, mt->mt_nretries, 1 );
688 * NOTE: meta_back_single_dobind() already retries;
689 * in case of failure, it resets mc...
691 if ( rc != LDAP_SUCCESS ) {
692 char buf[ SLAP_TEXT_BUFLEN ];
695 /* meta_back_single_dobind() already sent
696 * response and released connection */
701 if ( rc == LDAP_UNAVAILABLE ) {
702 /* FIXME: meta_back_retry() already calls
703 * meta_back_single_dobind() */
704 if ( meta_back_retry( op, rs, &mc, i, sendok ) ) {
709 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
710 LDAP_BACK_CONN_BINDING_CLEAR( msc );
711 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
717 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
718 LDAP_BACK_CONN_BINDING_CLEAR( msc );
719 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
721 snprintf( buf, sizeof( buf ),
722 "meta_back_dobind[%d]: (%s) err=%d (%s).",
723 i, isroot ? op->o_bd->be_rootdn.bv_val : "anonymous",
724 rc, ldap_err2string( rc ) );
725 Debug( LDAP_DEBUG_ANY,
727 op->o_log_prefix, buf, 0 );
730 * null cred bind should always succeed
731 * as anonymous, so a failure means
732 * the target is no longer candidate possibly
733 * due to technical reasons (remote host down?)
734 * so better clear the handle
736 /* leave the target candidate, but record the error for later use */
737 candidates[ i ].sr_err = rc;
738 if ( META_BACK_ONERR_STOP( mi ) ) {
747 Debug( LDAP_DEBUG_TRACE,
748 "%s meta_back_dobind[%d]: "
751 isroot ? op->o_bd->be_rootdn.bv_val : "anonymous" );
753 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
754 LDAP_BACK_CONN_BINDING_CLEAR( msc );
756 LDAP_BACK_CONN_ISBOUND_SET( msc );
758 LDAP_BACK_CONN_ISANON_SET( msc );
760 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
765 Debug( LDAP_DEBUG_TRACE,
766 "%s meta_back_dobind: conn=%ld bound=%d\n",
767 op->o_log_prefix, LDAP_BACK_PCONN_ID( mc ), bound );
770 meta_back_release_conn( op, mc );
773 if ( sendok & LDAP_BACK_SENDERR ) {
774 if ( rs->sr_err == LDAP_SUCCESS ) {
775 rs->sr_err = LDAP_BUSY;
777 send_ldap_result( op, rs );
783 return ( bound > 0 );
787 * meta_back_default_rebind
789 * This is a callback used for chasing referrals using the same
790 * credentials as the original user on this session.
793 meta_back_default_rebind(
795 LDAP_CONST char *url,
800 metasingleconn_t *msc = ( metasingleconn_t * )params;
802 return ldap_sasl_bind_s( ld, msc->msc_bound_ndn.bv_val,
803 LDAP_SASL_SIMPLE, &msc->msc_cred,
808 * meta_back_default_urllist
810 * This is a callback used for mucking with the urllist
813 meta_back_default_urllist(
815 LDAPURLDesc **urllist,
819 metatarget_t *mt = (metatarget_t *)params;
820 LDAPURLDesc **urltail;
822 if ( urllist == url ) {
826 for ( urltail = &(*url)->lud_next; *urltail; urltail = &(*urltail)->lud_next )
833 ldap_pvt_thread_mutex_lock( &mt->mt_uri_mutex );
835 ch_free( mt->mt_uri );
838 ldap_get_option( ld, LDAP_OPT_URI, (void *)&mt->mt_uri );
839 ldap_pvt_thread_mutex_unlock( &mt->mt_uri_mutex );
851 ldap_back_send_t sendok )
853 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
855 metatarget_t *mt = mi->mi_targets[ candidate ];
856 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
860 Debug( LDAP_DEBUG_TRACE, ">>> %s meta_back_cancel[%d] msgid=%d\n",
861 op->o_log_prefix, candidate, msgid );
863 /* default behavior */
864 if ( META_BACK_TGT_ABANDON( mt ) ) {
865 rc = ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
867 } else if ( META_BACK_TGT_IGNORE( mt ) ) {
870 } else if ( META_BACK_TGT_CANCEL( mt ) ) {
871 rc = ldap_cancel_s( msc->msc_ld, msgid, NULL, NULL );
877 Debug( LDAP_DEBUG_TRACE, "<<< %s meta_back_cancel[%d] err=%d\n",
878 op->o_log_prefix, candidate, rc );
886 * FIXME: error return must be handled in a cleaner way ...
896 ldap_back_send_t sendok )
898 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
900 const char *save_text = rs->sr_text,
901 *save_matched = rs->sr_matched;
902 BerVarray save_ref = rs->sr_ref;
903 LDAPControl **save_ctrls = rs->sr_ctrls;
904 void *matched_ctx = NULL;
906 char *matched = NULL;
909 LDAPControl **ctrls = NULL;
911 assert( mc != NULL );
914 rs->sr_matched = NULL;
918 if ( candidate != META_TARGET_NONE ) {
919 metatarget_t *mt = mi->mi_targets[ candidate ];
920 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
922 #define ERR_OK(err) ((err) == LDAP_SUCCESS || (err) == LDAP_COMPARE_FALSE || (err) == LDAP_COMPARE_TRUE)
924 if ( ERR_OK( rs->sr_err ) ) {
927 LDAPMessage *res = NULL;
928 time_t stoptime = (time_t)(-1);
929 int timeout_err = op->o_protocol >= LDAP_VERSION3 ?
930 LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER;
931 const char *timeout_text = "Operation timed out";
933 /* if timeout is not specified, compute and use
934 * the one specific to the ongoing operation */
935 if ( timeout == (time_t)(-1) ) {
936 slap_op_t opidx = slap_req2op( op->o_tag );
938 if ( opidx == SLAP_OP_SEARCH ) {
939 if ( op->ors_tlimit <= 0 ) {
943 timeout = op->ors_tlimit;
944 timeout_err = LDAP_TIMELIMIT_EXCEEDED;
949 timeout = mt->mt_timeout[ opidx ];
953 /* better than nothing :) */
954 if ( timeout == 0 ) {
955 if ( mi->mi_idle_timeout ) {
956 timeout = mi->mi_idle_timeout;
958 } else if ( mi->mi_conn_ttl ) {
959 timeout = mi->mi_conn_ttl;
964 stoptime = op->o_time + timeout;
967 LDAP_BACK_TV_SET( &tv );
970 rc = ldap_result( msc->msc_ld, msgid, LDAP_MSG_ALL, &tv, &res );
973 if ( timeout && slap_get_time() > stoptime ) {
974 (void)meta_back_cancel( mc, op, rs, msgid, candidate, sendok );
975 rs->sr_err = timeout_err;
976 rs->sr_text = timeout_text;
980 LDAP_BACK_TV_SET( &tv );
981 ldap_pvt_thread_yield();
985 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE,
990 /* otherwise get the result; if it is not
991 * LDAP_SUCCESS, record it in the reply
992 * structure (this includes
993 * LDAP_COMPARE_{TRUE|FALSE}) */
995 /* only touch when activity actually took place... */
996 if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) {
997 msc->msc_time = op->o_time;
1000 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
1001 &matched, &text, &refs, &ctrls, 1 );
1004 if ( rc != LDAP_SUCCESS ) {
1007 if ( refs != NULL ) {
1010 for ( i = 0; refs[ i ] != NULL; i++ )
1012 rs->sr_ref = op->o_tmpalloc( sizeof( struct berval ) * ( i + 1 ),
1014 for ( i = 0; refs[ i ] != NULL; i++ ) {
1015 ber_str2bv( refs[ i ], 0, 0, &rs->sr_ref[ i ] );
1017 BER_BVZERO( &rs->sr_ref[ i ] );
1019 if ( ctrls != NULL ) {
1020 rs->sr_ctrls = ctrls;
1024 assert( res == NULL );
1027 /* if the error in the reply structure is not
1028 * LDAP_SUCCESS, try to map it from client
1029 * to server error */
1030 if ( !ERR_OK( rs->sr_err ) ) {
1031 rs->sr_err = slap_map_api2result( rs );
1033 /* internal ops ( op->o_conn == NULL )
1034 * must not reply to client */
1035 if ( op->o_conn && !op->o_do_not_cache && matched ) {
1037 /* record the (massaged) matched
1038 * DN into the reply structure */
1039 rs->sr_matched = matched;
1043 if ( META_BACK_TGT_QUARANTINE( mt ) ) {
1044 meta_back_quarantine( op, rs, candidate );
1051 for ( i = 0; i < mi->mi_ntargets; i++ ) {
1052 metasingleconn_t *msc = &mc->mc_conns[ i ];
1054 char *xmatched = NULL;
1056 rs->sr_err = LDAP_SUCCESS;
1058 ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE, &rs->sr_err );
1059 if ( rs->sr_err != LDAP_SUCCESS ) {
1061 * better check the type of error. In some cases
1062 * (search ?) it might be better to return a
1063 * success if at least one of the targets gave
1064 * positive result ...
1066 ldap_get_option( msc->msc_ld,
1067 LDAP_OPT_DIAGNOSTIC_MESSAGE, &xtext );
1068 if ( xtext != NULL && xtext [ 0 ] == '\0' ) {
1069 ldap_memfree( xtext );
1073 ldap_get_option( msc->msc_ld,
1074 LDAP_OPT_MATCHED_DN, &xmatched );
1075 if ( xmatched != NULL && xmatched[ 0 ] == '\0' ) {
1076 ldap_memfree( xmatched );
1080 rs->sr_err = slap_map_api2result( rs );
1082 if ( LogTest( LDAP_DEBUG_ANY ) ) {
1083 char buf[ SLAP_TEXT_BUFLEN ];
1085 snprintf( buf, sizeof( buf ),
1086 "meta_back_op_result[%d] "
1087 "err=%d text=\"%s\" matched=\"%s\"",
1089 ( xtext ? xtext : "" ),
1090 ( xmatched ? xmatched : "" ) );
1091 Debug( LDAP_DEBUG_ANY, "%s %s.\n",
1092 op->o_log_prefix, buf, 0 );
1096 * FIXME: need to rewrite "match" (need rwinfo)
1098 switch ( rs->sr_err ) {
1101 if ( xtext != NULL ) {
1103 ldap_memfree( text );
1108 if ( xmatched != NULL ) {
1110 ldap_memfree( matched );
1119 ldap_memfree( xtext );
1123 ldap_memfree( xmatched );
1127 if ( META_BACK_TGT_QUARANTINE( mi->mi_targets[ i ] ) ) {
1128 meta_back_quarantine( op, rs, i );
1132 if ( err != LDAP_SUCCESS ) {
1137 if ( matched != NULL ) {
1138 struct berval dn, pdn;
1140 ber_str2bv( matched, 0, 0, &dn );
1141 if ( dnPretty( NULL, &dn, &pdn, op->o_tmpmemctx ) == LDAP_SUCCESS ) {
1142 ldap_memfree( matched );
1143 matched_ctx = op->o_tmpmemctx;
1144 matched = pdn.bv_val;
1146 rs->sr_matched = matched;
1150 ( ( sendok & LDAP_BACK_SENDOK )
1151 || ( ( sendok & LDAP_BACK_SENDERR ) && rs->sr_err != LDAP_SUCCESS ) ) )
1153 send_ldap_result( op, rs );
1156 op->o_tmpfree( (char *)rs->sr_matched, matched_ctx );
1159 ldap_memfree( text );
1162 assert( refs != NULL );
1163 ber_memvfree( (void **)refs );
1164 op->o_tmpfree( rs->sr_ref, op->o_tmpmemctx );
1167 assert( rs->sr_ctrls != NULL );
1168 ldap_controls_free( ctrls );
1171 rs->sr_text = save_text;
1172 rs->sr_matched = save_matched;
1173 rs->sr_ref = save_ref;
1174 rs->sr_ctrls = save_ctrls;
1176 return( ERR_OK( rs->sr_err ) ? LDAP_SUCCESS : rs->sr_err );
1180 * meta_back_proxy_authz_cred()
1182 * prepares credentials & method for meta_back_proxy_authz_bind();
1183 * or, if method is SASL, performs the SASL bind directly.
1186 meta_back_proxy_authz_cred(
1191 ldap_back_send_t sendok,
1192 struct berval *binddn,
1193 struct berval *bindcred,
1196 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
1197 metatarget_t *mt = mi->mi_targets[ candidate ];
1198 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
1202 /* don't proxyAuthz if protocol is not LDAPv3 */
1203 switch ( mt->mt_version ) {
1208 if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
1214 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1215 if ( sendok & LDAP_BACK_SENDERR ) {
1216 send_ldap_result( op, rs );
1218 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1222 if ( op->o_tag == LDAP_REQ_BIND ) {
1223 ndn = op->o_req_ndn;
1225 } else if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
1226 ndn = op->o_conn->c_ndn;
1233 * FIXME: we need to let clients use proxyAuthz
1234 * otherwise we cannot do symmetric pools of servers;
1235 * we have to live with the fact that a user can
1236 * authorize itself as any ID that is allowed
1237 * by the authzTo directive of the "proxyauthzdn".
1240 * NOTE: current Proxy Authorization specification
1241 * and implementation do not allow proxy authorization
1242 * control to be provided with Bind requests
1245 * if no bind took place yet, but the connection is bound
1246 * and the "proxyauthzdn" is set, then bind as
1247 * "proxyauthzdn" and explicitly add the proxyAuthz
1248 * control to every operation with the dn bound
1249 * to the connection as control value.
1252 /* bind as proxyauthzdn only if no idassert mode
1253 * is requested, or if the client's identity
1255 switch ( mt->mt_idassert_mode ) {
1256 case LDAP_BACK_IDASSERT_LEGACY:
1257 if ( !BER_BVISNULL( &ndn ) && !BER_BVISEMPTY( &ndn ) ) {
1258 if ( !BER_BVISNULL( &mt->mt_idassert_authcDN ) && !BER_BVISEMPTY( &mt->mt_idassert_authcDN ) )
1260 *binddn = mt->mt_idassert_authcDN;
1261 *bindcred = mt->mt_idassert_passwd;
1268 /* NOTE: rootdn can always idassert */
1269 if ( BER_BVISNULL( &ndn ) && mt->mt_idassert_authz == NULL ) {
1270 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1271 rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
1272 if ( sendok & LDAP_BACK_SENDERR ) {
1273 send_ldap_result( op, rs );
1275 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1278 rs->sr_err = LDAP_SUCCESS;
1279 *binddn = slap_empty_bv;
1280 *bindcred = slap_empty_bv;
1286 } else if ( mt->mt_idassert_authz && !be_isroot( op ) ) {
1287 struct berval authcDN;
1289 if ( BER_BVISNULL( &ndn ) ) {
1290 authcDN = slap_empty_bv;
1295 rs->sr_err = slap_sasl_matches( op, mt->mt_idassert_authz,
1296 &authcDN, &authcDN );
1297 if ( rs->sr_err != LDAP_SUCCESS ) {
1298 if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1299 if ( sendok & LDAP_BACK_SENDERR ) {
1300 send_ldap_result( op, rs );
1302 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1305 rs->sr_err = LDAP_SUCCESS;
1306 *binddn = slap_empty_bv;
1307 *bindcred = slap_empty_bv;
1315 *binddn = mt->mt_idassert_authcDN;
1316 *bindcred = mt->mt_idassert_passwd;
1321 if ( dobind && mt->mt_idassert_authmethod == LDAP_AUTH_SASL ) {
1322 #ifdef HAVE_CYRUS_SASL
1323 void *defaults = NULL;
1324 struct berval authzID = BER_BVNULL;
1327 /* if SASL supports native authz, prepare for it */
1328 if ( ( !op->o_do_not_cache || !op->o_is_auth_check ) &&
1329 ( mt->mt_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) )
1331 switch ( mt->mt_idassert_mode ) {
1332 case LDAP_BACK_IDASSERT_OTHERID:
1333 case LDAP_BACK_IDASSERT_OTHERDN:
1334 authzID = mt->mt_idassert_authzID;
1337 case LDAP_BACK_IDASSERT_ANONYMOUS:
1338 BER_BVSTR( &authzID, "dn:" );
1341 case LDAP_BACK_IDASSERT_SELF:
1342 if ( BER_BVISNULL( &ndn ) ) {
1343 /* connection is not authc'd, so don't idassert */
1344 BER_BVSTR( &authzID, "dn:" );
1347 authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len;
1348 authzID.bv_val = slap_sl_malloc( authzID.bv_len + 1, op->o_tmpmemctx );
1349 AC_MEMCPY( authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
1350 AC_MEMCPY( authzID.bv_val + STRLENOF( "dn:" ),
1351 ndn.bv_val, ndn.bv_len + 1 );
1360 if ( mt->mt_idassert_secprops != NULL ) {
1361 rs->sr_err = ldap_set_option( msc->msc_ld,
1362 LDAP_OPT_X_SASL_SECPROPS,
1363 (void *)mt->mt_idassert_secprops );
1365 if ( rs->sr_err != LDAP_OPT_SUCCESS ) {
1366 rs->sr_err = LDAP_OTHER;
1367 if ( sendok & LDAP_BACK_SENDERR ) {
1368 send_ldap_result( op, rs );
1370 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1375 defaults = lutil_sasl_defaults( msc->msc_ld,
1376 mt->mt_idassert_sasl_mech.bv_val,
1377 mt->mt_idassert_sasl_realm.bv_val,
1378 mt->mt_idassert_authcID.bv_val,
1379 mt->mt_idassert_passwd.bv_val,
1382 rs->sr_err = ldap_sasl_interactive_bind_s( msc->msc_ld, binddn->bv_val,
1383 mt->mt_idassert_sasl_mech.bv_val, NULL, NULL,
1384 LDAP_SASL_QUIET, lutil_sasl_interact,
1387 rs->sr_err = slap_map_api2result( rs );
1388 if ( rs->sr_err != LDAP_SUCCESS ) {
1389 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1390 if ( sendok & LDAP_BACK_SENDERR ) {
1391 send_ldap_result( op, rs );
1395 LDAP_BACK_CONN_ISBOUND_SET( msc );
1398 lutil_sasl_freedefs( defaults );
1400 slap_sl_free( authzID.bv_val, op->o_tmpmemctx );
1404 #endif /* HAVE_CYRUS_SASL */
1407 *method = mt->mt_idassert_authmethod;
1408 switch ( mt->mt_idassert_authmethod ) {
1409 case LDAP_AUTH_NONE:
1410 BER_BVSTR( binddn, "" );
1411 BER_BVSTR( bindcred, "" );
1414 case LDAP_AUTH_SIMPLE:
1419 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
1420 rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED;
1421 if ( sendok & LDAP_BACK_SENDERR ) {
1422 send_ldap_result( op, rs );
1432 meta_back_proxy_authz_bind( metaconn_t *mc, int candidate, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
1434 metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
1435 metatarget_t *mt = mi->mi_targets[ candidate ];
1436 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
1437 struct berval binddn = BER_BVC( "" ),
1438 cred = BER_BVC( "" );
1439 int method = LDAP_AUTH_NONE,
1442 rc = meta_back_proxy_authz_cred( mc, candidate, op, rs, sendok, &binddn, &cred, &method );
1443 if ( rc == LDAP_SUCCESS && !LDAP_BACK_CONN_ISBOUND( msc ) ) {
1447 case LDAP_AUTH_NONE:
1448 case LDAP_AUTH_SIMPLE:
1449 rs->sr_err = ldap_sasl_bind( msc->msc_ld,
1450 binddn.bv_val, LDAP_SASL_SIMPLE,
1451 &cred, NULL, NULL, &msgid );
1452 rc = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok );
1453 if ( rc == LDAP_SUCCESS ) {
1454 /* set rebind stuff in case of successful proxyAuthz bind,
1455 * so that referral chasing is attempted using the right
1457 LDAP_BACK_CONN_ISBOUND_SET( msc );
1458 ber_bvreplace( &msc->msc_bound_ndn, &binddn );
1460 if ( LDAP_BACK_SAVECRED( mi ) ) {
1461 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
1462 memset( msc->msc_cred.bv_val, 0,
1463 msc->msc_cred.bv_len );
1465 ber_bvreplace( &msc->msc_cred, &cred );
1466 ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc );
1477 return LDAP_BACK_CONN_ISBOUND( msc );