2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1999-2005 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 static LDAP_REBIND_PROC meta_back_rebind;
40 meta_back_single_bind(
47 meta_back_bind( Operation *op, SlapReply *rs )
49 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
50 metaconn_t *mc = NULL;
53 i, gotit = 0, isroot = 0;
55 SlapReply *candidates = meta_back_candidates_get( op );
57 rs->sr_err = LDAP_SUCCESS;
59 Debug( LDAP_DEBUG_ARGS, "meta_back_bind: dn: %s.\n%s%s",
60 op->o_req_dn.bv_val, "", "" );
62 if ( op->orb_method == LDAP_AUTH_SIMPLE && be_isroot_pw( op ) ) {
64 ber_dupbv( &op->orb_edn, be_root_dn( op->o_bd ) );
67 /* we need meta_back_getconn() not send result even on error,
68 * because we want to intercept the error and make it
69 * invalidCredentials */
70 mc = meta_back_getconn( op, rs, NULL, LDAP_BACK_DONTSEND );
72 Debug( LDAP_DEBUG_ANY,
73 "meta_back_bind: no target "
74 "for dn \"%s\" (%d: %s).\n",
75 op->o_req_dn.bv_val, rs->sr_err,
76 rs->sr_text ? rs->sr_text : "" );
77 /* FIXME: there might be cases where we don't want
78 * to map the error onto invalidCredentials */
79 switch ( rs->sr_err ) {
80 case LDAP_NO_SUCH_OBJECT:
81 case LDAP_UNWILLING_TO_PERFORM:
82 rs->sr_err = LDAP_INVALID_CREDENTIALS;
86 send_ldap_result( op, rs );
91 * Each target is scanned ...
93 mc->mc_auth_target = META_BOUND_NONE;
94 for ( i = 0; i < mi->mi_ntargets; i++ ) {
101 if ( candidates[ i ].sr_tag != META_CANDIDATE ) {
108 } else if ( isroot == 0 ) {
110 * A bind operation is expected to have
111 * ONE CANDIDATE ONLY!
113 Debug( LDAP_DEBUG_ANY,
114 "==>meta_back_bind: more than one"
115 " candidate is trying to bind...\n",
119 if ( isroot && !BER_BVISNULL( &mi->mi_targets[ i ].mt_pseudorootdn ) )
121 op2.o_req_dn = mi->mi_targets[ i ].mt_pseudorootdn;
122 op2.o_req_ndn = mi->mi_targets[ i ].mt_pseudorootdn;
123 op2.orb_cred = mi->mi_targets[ i ].mt_pseudorootpw;
124 op2.orb_method = LDAP_AUTH_SIMPLE;
127 lerr = meta_back_single_bind( &op2, rs, mc, i );
128 if ( lerr != LDAP_SUCCESS ) {
130 candidates[ i ].sr_tag = META_NOT_CANDIDATE;
138 mc->mc_auth_target = META_BOUND_ALL;
141 meta_back_release_conn( op, mc );
144 * rc is LDAP_SUCCESS if at least one bind succeeded,
145 * err is the last error that occurred during a bind;
146 * if at least (and at most?) one bind succeedes, fine.
148 if ( rc != LDAP_SUCCESS ) {
151 * deal with bind failure ...
155 * no target was found within the naming context,
156 * so bind must fail with invalid credentials
158 if ( rs->sr_err == LDAP_SUCCESS && gotit == 0 ) {
159 rs->sr_err = LDAP_INVALID_CREDENTIALS;
162 rs->sr_err = slap_map_api2result( rs );
163 send_ldap_result( op, rs );
171 * meta_back_single_bind
173 * attempts to perform a bind with creds
176 meta_back_single_bind(
182 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
183 metatarget_t *mt = &mi->mi_targets[ candidate ];
184 struct berval mdn = BER_BVNULL;
186 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
191 * Rewrite the bind dn if needed
193 dc.target = &mi->mi_targets[ candidate ];
194 dc.conn = op->o_conn;
198 if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
199 send_ldap_result( op, rs );
203 /* FIXME: this fixes the bind problem right now; we need
204 * to use the asynchronous version to get the "matched"
205 * and more in case of failure ... */
206 /* FIXME: should be check if at least some of the op->o_ctrls
207 * can/should be passed? */
209 rs->sr_err = ldap_sasl_bind( msc->msc_ld, mdn.bv_val,
210 LDAP_SASL_SIMPLE, &op->orb_cred,
211 op->o_ctrls, NULL, &msgid );
212 if ( rs->sr_err == LDAP_SUCCESS ) {
216 int nretries = mt->mt_nretries;
223 tv.tv_usec = META_BIND_TIMEOUT;
224 switch ( ldap_result( msc->msc_ld, msgid, 0, &tv, &res ) ) {
226 Debug( LDAP_DEBUG_ANY, "%s meta_back_single_bind: ldap_result=%d nretries=%d\n",
227 op->o_log_prefix, 0, nretries );
229 if ( nretries != META_RETRY_NEVER ) {
230 ldap_pvt_thread_yield();
231 if ( nretries > 0 ) {
236 rs->sr_err = LDAP_BUSY;
238 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
242 /* FIXME: some times the request times out
243 * while the other party is not willing to
244 * send a response any more. Give it a second
245 * chance with a freshly bound connection */
247 nretries = mt->mt_nretries;
251 ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER,
255 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
258 Debug( LDAP_DEBUG_ANY, "### %s meta_back_single_bind: err=%d nretries=%d\n",
259 op->o_log_prefix, rs->sr_err, nretries );
261 rc = slap_map_api2result( rs );
262 if ( rs->sr_err == LDAP_UNAVAILABLE && nretries != META_RETRY_NEVER ) {
264 switch ( ldap_pvt_thread_mutex_trylock( &mi->mi_conn_mutex ) ) {
265 case LDAP_PVT_THREAD_EBUSY:
267 ldap_pvt_thread_yield();
274 if ( mc->mc_refcnt == 1 ) {
275 ldap_unbind_ext_s( msc->msc_ld, NULL, NULL );
279 /* mc here must be the regular mc, reset and ready for init */
280 rc = meta_back_init_one_conn( op, rs, mt, msc,
281 LDAP_BACK_DONTSEND );
284 /* can't do anything about it */
288 ldap_pvt_thread_mutex_unlock( &mi->mi_conn_mutex );
291 if ( nretries > 0 ) {
294 ldap_pvt_thread_yield();
301 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
302 NULL, NULL, NULL, NULL, 1 );
303 if ( rc != LDAP_SUCCESS ) {
310 if ( rs->sr_err != LDAP_SUCCESS ) {
311 rs->sr_err = slap_map_api2result( rs );
315 ber_bvreplace( &msc->msc_bound_ndn, &op->o_req_dn );
316 msc->msc_bound = META_BOUND;
317 mc->mc_auth_target = candidate;
319 if ( LDAP_BACK_SAVECRED( mi ) ) {
320 ber_bvreplace( &msc->msc_cred, &op->orb_cred );
321 ldap_set_rebind_proc( msc->msc_ld, meta_back_rebind, msc );
324 if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED
325 && op->o_req_ndn.bv_len != 0 )
327 ( void )meta_dncache_update_entry( &mi->mi_cache,
328 &op->o_req_ndn, candidate );
332 if ( mdn.bv_val != op->o_req_dn.bv_val ) {
340 * meta_back_single_dobind
343 meta_back_single_dobind(
348 ldap_back_send_t sendok,
352 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
353 metatarget_t *mt = &mi->mi_targets[ candidate ];
354 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
356 struct berval cred = BER_BVC( "" );
359 save_nretries = nretries;
362 * Otherwise an anonymous bind is performed
363 * (note: if the target was already bound, the anonymous
364 * bind clears the previous bind).
366 if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
367 ber_memfree( msc->msc_bound_ndn.bv_val );
368 BER_BVZERO( &msc->msc_bound_ndn );
371 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
372 /* destroy sensitive data */
373 memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len );
374 ber_memfree( msc->msc_cred.bv_val );
375 BER_BVZERO( &msc->msc_cred );
378 /* FIXME: should we check if at least some of the op->o_ctrls
379 * can/should be passed? */
381 rc = ldap_sasl_bind( msc->msc_ld, "", LDAP_SASL_SIMPLE, &cred,
382 NULL, NULL, &msgid );
383 if ( rc == LDAP_SUCCESS ) {
392 tv.tv_usec = META_BIND_TIMEOUT;
393 switch ( ldap_result( msc->msc_ld, msgid, 0, &tv, &res ) ) {
395 Debug( LDAP_DEBUG_ANY, "%s meta_back_single_dobind: ldap_result=%d nretries=%d\n",
396 op->o_log_prefix, 0, nretries );
398 if ( nretries != META_RETRY_NEVER ) {
399 ldap_pvt_thread_yield();
400 if ( nretries > 0 ) {
408 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
412 /* FIXME: some times the request times out
413 * while the other party is not willing to
414 * send a response any more. Give it a second
415 * chance with a freshly bound connection */
417 nretries = save_nretries;
421 ldap_get_option( msc->msc_ld,
422 LDAP_OPT_ERROR_NUMBER, &rs->sr_err );
425 ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL );
428 Debug( LDAP_DEBUG_ANY, "### %s meta_back_single_dobind: err=%d nretries=%d\n",
429 op->o_log_prefix, rs->sr_err, nretries );
431 rc = slap_map_api2result( rs );
432 if ( rc == LDAP_UNAVAILABLE && nretries != META_RETRY_NEVER ) {
435 switch ( ldap_pvt_thread_mutex_trylock( &mi->mi_conn_mutex ) ) {
436 case LDAP_PVT_THREAD_EBUSY:
438 ldap_pvt_thread_yield();
446 if ( mc->mc_refcnt == 1 ) {
447 ldap_unbind_ext_s( msc->msc_ld, NULL, NULL );
451 /* mc here must be the regular mc, reset and ready for init */
452 rc = meta_back_init_one_conn( op, rs, mt, msc, LDAP_BACK_DONTSEND );
456 /* can't do anything about it */
457 rc = LDAP_UNAVAILABLE;
461 ldap_pvt_thread_mutex_unlock( &mi->mi_conn_mutex );
464 if ( rc == LDAP_SUCCESS ) {
465 ldap_pvt_thread_yield();
466 if ( nretries > 0 ) {
475 rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err,
476 NULL, NULL, NULL, NULL, 1 );
477 if ( rc == LDAP_SUCCESS ) {
478 rc = slap_map_api2result( rs );
484 rc = slap_map_api2result( rs );
488 if ( rc != LDAP_SUCCESS && ( sendok & LDAP_BACK_SENDERR ) ) {
489 send_ldap_result( op, rs );
503 ldap_back_send_t sendok )
505 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
509 SlapReply *candidates = meta_back_candidates_get( op );
511 ldap_pvt_thread_mutex_lock( &mc->mc_mutex );
513 Debug( LDAP_DEBUG_TRACE,
514 "%s meta_back_dobind: conn=%ld\n",
515 op->o_log_prefix, mc->mc_conn->c_connid, 0 );
518 * all the targets are bound as pseudoroot
520 if ( mc->mc_auth_target == META_BOUND_ALL ) {
525 for ( i = 0; i < mi->mi_ntargets; i++ ) {
526 metatarget_t *mt = &mi->mi_targets[ i ];
527 metasingleconn_t *msc = &mc->mc_conns[ i ];
533 if ( candidates[ i ].sr_tag != META_CANDIDATE ) {
537 assert( msc->msc_ld != NULL );
540 * If the target is already bound it is skipped
542 if ( msc->msc_bound == META_BOUND && mc->mc_auth_target == i ) {
545 Debug( LDAP_DEBUG_TRACE, "%s meta_back_dobind[%d]: "
547 op->o_log_prefix, i, 0 );
551 rc = meta_back_single_dobind( op, rs, mc, i,
552 LDAP_BACK_DONTSEND, mt->mt_nretries, 1 );
553 if ( rc != LDAP_SUCCESS ) {
554 rs->sr_err = slap_map_api2result( rs );
556 Debug( LDAP_DEBUG_ANY, "%s meta_back_dobind[%d]: "
557 "(anonymous) err=%d\n",
558 op->o_log_prefix, i, rc );
561 * null cred bind should always succeed
562 * as anonymous, so a failure means
563 * the target is no longer candidate possibly
564 * due to technical reasons (remote host down?)
565 * so better clear the handle
567 candidates[ i ].sr_tag = META_NOT_CANDIDATE;
571 Debug( LDAP_DEBUG_TRACE, "%s meta_back_dobind[%d]: "
573 op->o_log_prefix, i, 0 );
575 msc->msc_bound = META_ANONYMOUS;
580 ldap_pvt_thread_mutex_unlock( &mc->mc_mutex );
582 Debug( LDAP_DEBUG_TRACE,
583 "%s meta_back_dobind: conn=%ld bound=%d\n",
584 op->o_log_prefix, mc->mc_conn->c_connid, bound );
587 meta_back_release_conn( op, mc );
589 if ( sendok & LDAP_BACK_SENDERR ) {
590 if ( rs->sr_err == LDAP_SUCCESS ) {
591 rs->sr_err = LDAP_BUSY;
593 send_ldap_result( op, rs );
603 * This is a callback used for chasing referrals using the same
604 * credentials as the original user on this session.
609 LDAP_CONST char *url,
614 metasingleconn_t *msc = ( metasingleconn_t * )params;
616 return ldap_sasl_bind_s( ld, msc->msc_bound_ndn.bv_val,
617 LDAP_SASL_SIMPLE, &msc->msc_cred,
622 * FIXME: error return must be handled in a cleaner way ...
631 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
640 if ( candidate != META_TARGET_NONE ) {
641 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
643 rs->sr_err = LDAP_SUCCESS;
645 ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER, &rs->sr_err );
646 if ( rs->sr_err != LDAP_SUCCESS ) {
648 * better check the type of error. In some cases
649 * (search ?) it might be better to return a
650 * success if at least one of the targets gave
651 * positive result ...
653 ldap_get_option( msc->msc_ld,
654 LDAP_OPT_ERROR_STRING, &rmsg );
655 ldap_get_option( msc->msc_ld,
656 LDAP_OPT_MATCHED_DN, &rmatch );
657 rerr = rs->sr_err = slap_map_api2result( rs );
666 Debug(LDAP_DEBUG_ANY,
667 "==> meta_back_op_result: target"
668 " <%d> sending msg \"%s\""
669 " (matched \"%s\")\n",
670 candidate, ( rmsg ? rmsg : "" ),
671 ( rmatch ? rmatch : "" ) );
675 for ( i = 0; i < mi->mi_ntargets; i++ ) {
676 metasingleconn_t *msc = &mc->mc_conns[ i ];
680 rs->sr_err = LDAP_SUCCESS;
682 ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER, &rs->sr_err );
683 if ( rs->sr_err != LDAP_SUCCESS ) {
685 * better check the type of error. In some cases
686 * (search ?) it might be better to return a
687 * success if at least one of the targets gave
688 * positive result ...
690 ldap_get_option( msc->msc_ld,
691 LDAP_OPT_ERROR_STRING, &msg );
692 ldap_get_option( msc->msc_ld,
693 LDAP_OPT_MATCHED_DN, &match );
694 rs->sr_err = slap_map_api2result( rs );
696 Debug(LDAP_DEBUG_ANY,
697 "==> meta_back_op_result: target"
698 " <%d> sending msg \"%s\""
699 " (matched \"%s\")\n",
700 i, ( msg ? msg : "" ),
701 ( match ? match : "" ) );
704 * FIXME: need to rewrite "match" (need rwinfo)
706 switch ( rs->sr_err ) {
716 ber_memfree( rmatch );
724 /* better test the pointers before freeing? */
737 rs->sr_matched = rmatch;
738 send_ldap_result( op, rs );
743 ber_memfree( rmatch );
746 rs->sr_matched = NULL;
748 return ( ( rerr == LDAP_SUCCESS ) ? 0 : -1 );