1
/* bind.c - ldap backend bind function */
2
/* $OpenLDAP: pkg/ldap/servers/slapd/back-ldap/bind.c,v 1.85.2.27 2006/05/09 20:00:36 ando Exp $ */
3
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5
* Copyright 1999-2006 The OpenLDAP Foundation.
6
* Portions Copyright 2000-2003 Pierangelo Masarati.
7
* Portions Copyright 1999-2003 Howard Chu.
10
* Redistribution and use in source and binary forms, with or without
11
* modification, are permitted only as authorized by the OpenLDAP
14
* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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* This work was initially developed by Howard Chu for inclusion
20
* in OpenLDAP Software and subsequently enhanced by Pierangelo
29
#include <ac/socket.h>
30
#include <ac/string.h>
34
#include "back-ldap.h"
36
#include <lutil_ldap.h>
38
#ifndef PRINT_CONNTREE
39
#define PRINT_CONNTREE 0
40
#endif /* !PRINT_CONNTREE */
42
#define LDAP_CONTROL_OBSOLETE_PROXY_AUTHZ "2.16.840.1.113730.3.4.12"
44
static LDAP_REBIND_PROC ldap_back_default_rebind;
46
LDAP_REBIND_PROC *ldap_back_rebind_f = ldap_back_default_rebind;
49
ldap_back_proxy_authz_bind( ldapconn_t *lc, Operation *op, SlapReply *rs, ldap_back_send_t sendok );
52
ldap_back_prepare_conn( ldapconn_t **lcp, Operation *op, SlapReply *rs, ldap_back_send_t sendok );
55
ldap_back_conndnlc_cmp( const void *c1, const void *c2 );
58
ldap_back_bind( Operation *op, SlapReply *rs )
60
ldapinfo_t *li = (ldapinfo_t *) op->o_bd->be_private;
66
lc = ldap_back_getconn( op, rs, LDAP_BACK_BIND_SERR );
71
if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
72
ch_free( lc->lc_bound_ndn.bv_val );
73
BER_BVZERO( &lc->lc_bound_ndn );
75
LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
77
/* method is always LDAP_AUTH_SIMPLE if we got here */
78
rs->sr_err = ldap_sasl_bind( lc->lc_ld, op->o_req_dn.bv_val,
80
&op->orb_cred, op->o_ctrls, NULL, &msgid );
81
rc = ldap_back_op_result( lc, op, rs, msgid, 0, LDAP_BACK_SENDERR );
83
if ( rc == LDAP_SUCCESS ) {
84
/* If defined, proxyAuthz will be used also when
85
* back-ldap is the authorizing backend; for this
86
* purpose, a successful bind is followed by a
87
* bind with the configured identity assertion */
88
/* NOTE: use with care */
89
if ( li->li_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) {
90
ldap_back_proxy_authz_bind( lc, op, rs, LDAP_BACK_SENDERR );
91
if ( !LDAP_BACK_CONN_ISBOUND( lc ) ) {
97
LDAP_BACK_CONN_ISBOUND_SET( lc );
98
ber_dupbv( &lc->lc_bound_ndn, &op->o_req_ndn );
100
if ( LDAP_BACK_SAVECRED( li ) ) {
101
if ( !BER_BVISNULL( &lc->lc_cred ) ) {
102
memset( lc->lc_cred.bv_val, 0,
103
lc->lc_cred.bv_len );
105
ber_bvreplace( &lc->lc_cred, &op->orb_cred );
106
ldap_set_rebind_proc( lc->lc_ld, ldap_back_rebind_f, lc );
111
assert( lc->lc_binding == 1 );
114
/* must re-insert if local DN changed as result of bind */
115
if ( !LDAP_BACK_CONN_ISBOUND( lc )
116
|| ( LDAP_BACK_CONN_ISBOUND( lc )
117
&& !dn_match( &op->o_req_ndn, &lc->lc_local_ndn ) ) )
122
/* wait for all other ops to release the connection */
124
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
125
if ( lc->lc_refcnt > 1 ) {
126
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
127
ldap_pvt_thread_yield();
131
assert( lc->lc_refcnt == 1 );
132
tmplc = avl_delete( &li->li_conninfo.lai_tree, (caddr_t)lc,
133
ldap_back_conndnlc_cmp );
134
assert( tmplc == NULL || lc == tmplc );
136
if ( LDAP_BACK_CONN_ISBOUND( lc ) ) {
137
ber_bvreplace( &lc->lc_local_ndn, &op->o_req_ndn );
138
lerr = avl_insert( &li->li_conninfo.lai_tree, (caddr_t)lc,
139
ldap_back_conndn_cmp, ldap_back_conndn_dup );
142
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
148
/* duplicate; someone else successfully bound
149
* on the same connection with the same identity;
150
* we can do this because lc_refcnt == 1 */
151
ldap_back_conn_free( lc );
157
ldap_back_release_conn( op, rs, lc );
164
* ldap_back_conndn_cmp
166
* compares two ldapconn_t based on the value of the conn pointer
167
* and of the local DN; used by avl stuff for insert, lookup
171
ldap_back_conndn_cmp( const void *c1, const void *c2 )
173
const ldapconn_t *lc1 = (const ldapconn_t *)c1;
174
const ldapconn_t *lc2 = (const ldapconn_t *)c2;
177
/* If local DNs don't match, it is definitely not a match */
178
/* For shared sessions, conn is NULL. Only explicitly
179
* bound sessions will have non-NULL conn.
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rc = SLAP_PTRCMP( lc1->lc_conn, lc2->lc_conn );
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rc = ber_bvcmp( &lc1->lc_local_ndn, &lc2->lc_local_ndn );
190
* ldap_back_conndnlc_cmp
192
* compares two ldapconn_t based on the value of the conn pointer,
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* the local DN and the lc pointer; used by avl stuff for insert, lookup
197
ldap_back_conndnlc_cmp( const void *c1, const void *c2 )
199
const ldapconn_t *lc1 = (const ldapconn_t *)c1;
200
const ldapconn_t *lc2 = (const ldapconn_t *)c2;
203
/* If local DNs don't match, it is definitely not a match */
204
/* For shared sessions, conn is NULL. Only explicitly
205
* bound sessions will have non-NULL conn.
207
rc = SLAP_PTRCMP( lc1->lc_conn, lc2->lc_conn );
209
rc = ber_bvcmp( &lc1->lc_local_ndn, &lc2->lc_local_ndn );
211
rc = SLAP_PTRCMP( lc1, lc2 );
221
* compares two ldapconn_t based on the value of the conn pointer;
222
* used by avl stuff for delete of all conns with the same connid
225
ldap_back_conn_cmp( const void *c1, const void *c2 )
227
const ldapconn_t *lc1 = (const ldapconn_t *)c1;
228
const ldapconn_t *lc2 = (const ldapconn_t *)c2;
230
/* For shared sessions, conn is NULL. Only explicitly
231
* bound sessions will have non-NULL conn.
233
return SLAP_PTRCMP( lc1->lc_conn, lc2->lc_conn );
237
* ldap_back_conndn_dup
239
* returns -1 in case a duplicate ldapconn_t has been inserted;
243
ldap_back_conndn_dup( void *c1, void *c2 )
245
ldapconn_t *lc1 = (ldapconn_t *)c1;
246
ldapconn_t *lc2 = (ldapconn_t *)c2;
248
/* Cannot have more than one shared session with same DN */
249
if ( lc1->lc_conn == lc2->lc_conn &&
250
dn_match( &lc1->lc_local_ndn, &lc2->lc_local_ndn ) )
258
#if PRINT_CONNTREE > 0
260
ravl_print( Avlnode *root, int depth )
269
ravl_print( root->avl_right, depth+1 );
271
for ( i = 0; i < depth; i++ ) {
272
fprintf( stderr, "-" );
276
fprintf( stderr, "lc=%p local=\"%s\" conn=%p %s refcnt=%d\n",
277
(void *)lc, lc->lc_local_ndn.bv_val, (void *)lc->lc_conn,
278
avl_bf2str( root->avl_bf ), lc->lc_refcnt );
280
ravl_print( root->avl_left, depth+1 );
284
myprint( Avlnode *root )
286
fprintf( stderr, "========>\n" );
289
fprintf( stderr, "\tNULL\n" );
292
ravl_print( root, 0 );
295
fprintf( stderr, "<========\n" );
297
#endif /* PRINT_CONNTREE */
300
ldap_back_freeconn( Operation *op, ldapconn_t *lc, int dolock )
302
ldapinfo_t *li = (ldapinfo_t *) op->o_bd->be_private;
306
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
309
tmplc = avl_delete( &li->li_conninfo.lai_tree, (caddr_t)lc,
310
ldap_back_conndnlc_cmp );
311
assert( LDAP_BACK_CONN_TAINTED( lc ) || tmplc == lc );
312
if ( lc->lc_refcnt == 0 ) {
313
ldap_back_conn_free( (void *)lc );
317
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
334
int rc = LDAP_SUCCESS;
337
/* this is ridiculous... */
338
dummy.li_flags = flags;
340
/* start TLS ("tls-[try-]{start,propagate}" statements) */
341
if ( ( LDAP_BACK_USE_TLS( &dummy ) || ( *is_tls && LDAP_BACK_PROPAGATE_TLS( &dummy ) ) )
342
&& !ldap_is_ldaps_url( url ) )
344
#ifdef SLAP_STARTTLS_ASYNCHRONOUS
346
* use asynchronous StartTLS
347
* in case, chase referral (not implemented yet)
351
if ( protocol == 0 ) {
352
ldap_get_option( ld, LDAP_OPT_PROTOCOL_VERSION,
356
if ( protocol < LDAP_VERSION3 ) {
357
protocol = LDAP_VERSION3;
358
/* Set LDAP version */
359
ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION,
360
(const void *)&protocol );
363
rc = ldap_start_tls( ld, NULL, NULL, &msgid );
364
if ( rc == LDAP_SUCCESS ) {
365
LDAPMessage *res = NULL;
368
LDAP_BACK_TV_SET( &tv );
371
rc = ldap_result( ld, msgid, LDAP_MSG_ALL, &tv, &res );
373
rc = LDAP_UNAVAILABLE;
375
} else if ( rc == 0 ) {
376
if ( retries != LDAP_BACK_RETRY_NEVER ) {
377
ldap_pvt_thread_yield();
381
LDAP_BACK_TV_SET( &tv );
384
rc = LDAP_UNAVAILABLE;
386
} else if ( rc == LDAP_RES_EXTENDED ) {
387
struct berval *data = NULL;
389
rc = ldap_parse_extended_result( ld, res,
391
if ( rc == LDAP_SUCCESS ) {
393
rc = ldap_parse_result( ld, res, &err,
394
NULL, NULL, NULL, NULL, 1 );
395
if ( rc == LDAP_SUCCESS ) {
400
/* FIXME: in case a referral
401
* is returned, should we try
402
* using it instead of the
404
if ( rc == LDAP_SUCCESS ) {
405
rc = ldap_install_tls( ld );
407
} else if ( rc == LDAP_REFERRAL ) {
408
rc = LDAP_UNWILLING_TO_PERFORM;
409
*text = "unwilling to chase referral returned by Start TLS exop";
413
if ( data->bv_val ) {
414
ber_memfree( data->bv_val );
428
#else /* ! SLAP_STARTTLS_ASYNCHRONOUS */
430
* use synchronous StartTLS
432
rc = ldap_start_tls_s( ld, NULL, NULL );
433
#endif /* ! SLAP_STARTTLS_ASYNCHRONOUS */
435
/* if StartTLS is requested, only attempt it if the URL
436
* is not "ldaps://"; this may occur not only in case
437
* of misconfiguration, but also when used in the chain
438
* overlay, where the "uri" can be parsed out of a referral */
444
case LDAP_SERVER_DOWN:
448
if ( LDAP_BACK_TLS_CRITICAL( &dummy ) ) {
449
*text = "could not start TLS";
453
/* in case Start TLS is not critical */
465
#endif /* HAVE_TLS */
468
ldap_back_prepare_conn( ldapconn_t **lcp, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
470
ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
471
int vers = op->o_protocol;
474
int is_tls = op->o_conn->c_is_tls;
475
#endif /* HAVE_TLS */
477
assert( lcp != NULL );
479
rs->sr_err = ldap_initialize( &ld, li->li_uri );
480
if ( rs->sr_err != LDAP_SUCCESS ) {
484
/* Set LDAP version. This will always succeed: If the client
485
* bound with a particular version, then so can we.
488
/* assume it's an internal op; set to LDAPv3 */
489
vers = LDAP_VERSION3;
491
ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, (const void *)&vers );
493
/* automatically chase referrals ("chase-referrals [{yes|no}]" statement) */
494
ldap_set_option( ld, LDAP_OPT_REFERRALS,
495
LDAP_BACK_CHASE_REFERRALS( li ) ? LDAP_OPT_ON : LDAP_OPT_OFF );
497
if ( li->li_network_timeout > 0 ) {
500
tv.tv_sec = li->li_network_timeout;
502
ldap_set_option( ld, LDAP_OPT_NETWORK_TIMEOUT, (const void *)&tv );
506
rs->sr_err = ldap_back_start_tls( ld, op->o_protocol, &is_tls,
507
li->li_uri, li->li_flags, li->li_nretries, &rs->sr_text );
508
if ( rs->sr_err != LDAP_SUCCESS ) {
509
ldap_unbind_ext( ld, NULL, NULL );
512
#endif /* HAVE_TLS */
514
if ( *lcp == NULL ) {
515
*lcp = (ldapconn_t *)ch_calloc( 1, sizeof( ldapconn_t ) );
516
(*lcp)->lc_flags= li->li_flags;
519
(*lcp)->lc_refcnt = 1;
520
(*lcp)->lc_binding = 1;
523
LDAP_BACK_CONN_ISTLS_SET( *lcp );
525
LDAP_BACK_CONN_ISTLS_CLEAR( *lcp );
527
#endif /* HAVE_TLS */
530
if ( rs->sr_err != LDAP_SUCCESS ) {
531
rs->sr_err = slap_map_api2result( rs );
532
if ( sendok & LDAP_BACK_SENDERR ) {
533
if ( rs->sr_text == NULL ) {
534
rs->sr_text = "ldap_initialize() failed";
536
send_ldap_result( op, rs );
541
if ( li->li_conn_ttl > 0 ) {
542
(*lcp)->lc_create_time = op->o_time;
550
ldap_back_getconn( Operation *op, SlapReply *rs, ldap_back_send_t sendok )
552
ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
553
ldapconn_t *lc = NULL,
555
int refcnt = 1, binding = 1;
557
/* Internal searches are privileged and shared. So is root. */
558
if ( op->o_do_not_cache || be_isroot( op ) ) {
559
LDAP_BACK_CONN_ISPRIV_SET( &lc_curr );
560
lc_curr.lc_local_ndn = op->o_bd->be_rootndn;
561
lc_curr.lc_conn = LDAP_BACK_PCONN_SET( op );
564
lc_curr.lc_local_ndn = op->o_ndn;
565
/* Explicit binds must not be shared */
566
if ( op->o_tag == LDAP_REQ_BIND || SLAP_IS_AUTHZ_BACKEND( op ) ) {
567
lc_curr.lc_conn = op->o_conn;
570
lc_curr.lc_conn = LDAP_BACK_PCONN_SET( op );
574
/* Explicit Bind requests always get their own conn */
575
if ( !( sendok & LDAP_BACK_BINDING ) ) {
576
/* Searches for a ldapconn in the avl tree */
578
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
580
lc = (ldapconn_t *)avl_find( li->li_conninfo.lai_tree,
581
(caddr_t)&lc_curr, ldap_back_conndn_cmp );
583
/* Don't reuse connections while they're still binding */
584
if ( LDAP_BACK_CONN_BINDING( lc ) ) {
585
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
586
ldap_pvt_thread_yield();
589
refcnt = ++lc->lc_refcnt;
590
binding = ++lc->lc_binding;
592
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
595
/* Looks like we didn't get a bind. Open a new session... */
597
if ( ldap_back_prepare_conn( &lc, op, rs, sendok ) != LDAP_SUCCESS ) {
600
if ( sendok & LDAP_BACK_BINDING ) {
601
LDAP_BACK_CONN_BINDING_SET( lc );
603
lc->lc_conn = lc_curr.lc_conn;
604
ber_dupbv( &lc->lc_local_ndn, &lc_curr.lc_local_ndn );
606
if ( LDAP_BACK_CONN_ISPRIV( &lc_curr ) ) {
607
ber_dupbv( &lc->lc_cred, &li->li_acl_passwd );
608
ber_dupbv( &lc->lc_bound_ndn, &li->li_acl_authcDN );
609
LDAP_BACK_CONN_ISPRIV_SET( lc );
612
BER_BVZERO( &lc->lc_cred );
613
BER_BVZERO( &lc->lc_bound_ndn );
615
/* FIXME: if we set lc_bound_ndn = o_ndn
616
* we end up with a bind with DN but no password! */
617
if ( !BER_BVISEMPTY( &op->o_ndn )
618
&& SLAP_IS_AUTHZ_BACKEND( op ) )
620
ber_dupbv( &lc->lc_bound_ndn, &op->o_ndn );
626
/* if start TLS failed but it was not mandatory,
627
* check if the non-TLS connection was already
628
* in cache; in case, destroy the newly created
629
* connection and use the existing one */
630
if ( lc->lc_conn == LDAP_BACK_PCONN_TLS
631
&& !ldap_tls_inplace( lc->lc_ld ) )
635
lc_curr.lc_conn = LDAP_BACK_PCONN;
636
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
637
tmplc = (ldapconn_t *)avl_find( li->li_conninfo.lai_tree,
638
(caddr_t)&lc_curr, ldap_back_conndn_cmp );
639
if ( tmplc != NULL ) {
640
refcnt = ++tmplc->lc_refcnt;
641
binding = ++tmplc->lc_binding;
642
ldap_back_conn_free( lc );
645
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
647
if ( tmplc != NULL ) {
651
#endif /* HAVE_TLS */
653
LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
655
/* Inserts the newly created ldapconn in the avl tree */
656
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
658
assert( lc->lc_refcnt == 1 );
659
assert( lc->lc_binding == 1 );
660
rs->sr_err = avl_insert( &li->li_conninfo.lai_tree, (caddr_t)lc,
661
ldap_back_conndn_cmp, ldap_back_conndn_dup );
663
#if PRINT_CONNTREE > 0
664
myprint( li->li_conninfo.lai_tree );
665
#endif /* PRINT_CONNTREE */
667
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
669
Debug( LDAP_DEBUG_TRACE,
670
"=>ldap_back_getconn: conn %p inserted refcnt=%u binding=%u\n",
671
(void *)lc, refcnt, binding );
673
/* Err could be -1 in case a duplicate ldapconn is inserted */
674
switch ( rs->sr_err ) {
679
if ( !( sendok & LDAP_BACK_BINDING ) ) {
680
/* duplicate: free and try to get the newly created one */
683
/* taint connection, so that it'll be freed when released */
684
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
685
(void *)avl_delete( &li->li_conninfo.lai_tree, (caddr_t)lc,
686
ldap_back_conndnlc_cmp );
687
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
688
LDAP_BACK_CONN_TAINTED_SET( lc );
692
ldap_back_conn_free( lc );
693
rs->sr_err = LDAP_OTHER;
694
rs->sr_text = "proxy bind collision";
695
if ( op->o_conn && ( sendok & LDAP_BACK_SENDERR ) ) {
696
send_ldap_result( op, rs );
703
char buf[ SLAP_TEXT_BUFLEN ];
706
if ( ( li->li_idle_timeout != 0 && op->o_time > lc->lc_time + li->li_idle_timeout )
707
|| ( li->li_conn_ttl != 0 && op->o_time > lc->lc_create_time + li->li_conn_ttl ) )
711
/* let it be used, but taint/delete it so that
712
* no-one else can look it up any further */
713
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
714
(void *)avl_delete( &li->li_conninfo.lai_tree, (caddr_t)lc,
715
ldap_back_conndnlc_cmp );
716
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
717
LDAP_BACK_CONN_TAINTED_SET( lc );
721
snprintf( buf, sizeof( buf ),
722
"conn %p fetched refcnt=%u binding=%u%s",
723
(void *)lc, refcnt, binding, expiring ? " expiring" : "" );
724
Debug( LDAP_DEBUG_TRACE,
725
"=>ldap_back_getconn: %s.\n", buf, 0, 0 );
732
#endif /* HAVE_TLS */
733
if ( li->li_idle_timeout && lc ) {
734
lc->lc_time = op->o_time;
741
ldap_back_release_conn_lock(
747
ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
750
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
752
assert( lc->lc_refcnt > 0 );
753
LDAP_BACK_CONN_BINDING_CLEAR( lc );
755
if ( LDAP_BACK_CONN_TAINTED( lc ) ) {
756
ldap_back_freeconn( op, lc, 0 );
759
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
766
* Note: as the check for the value of lc->lc_bound was already here, I removed
767
* it from all the callers, and I made the function return the flag, so
768
* it can be used to simplify the check.
770
* Note: dolock indicates whether li->li_conninfo.lai_mutex must be locked or not
773
ldap_back_dobind_int(
777
ldap_back_send_t sendok,
781
ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
786
assert( retries >= 0 );
790
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
793
if ( binding == 0 ) {
794
/* check if already bound */
795
rc = LDAP_BACK_CONN_ISBOUND( lc );
799
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
804
if ( LDAP_BACK_CONN_BINDING( lc ) ) {
805
/* if someone else is about to bind it, give up and retry */
807
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
809
ldap_pvt_thread_yield();
813
/* otherwise this thread will bind it */
814
LDAP_BACK_CONN_BINDING_SET( lc );
819
/* wait for pending operations to finish */
820
/* FIXME: may become a bottleneck! */
821
if ( lc->lc_refcnt != lc->lc_binding ) {
823
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
825
ldap_pvt_thread_yield();
830
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
834
while ( lc->lc_refcnt > 1 ) {
835
ldap_pvt_thread_yield();
836
rc = LDAP_BACK_CONN_ISBOUND( lc );
843
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
845
LDAP_BACK_CONN_BINDING_SET( lc );
847
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
852
* FIXME: we need to let clients use proxyAuthz
853
* otherwise we cannot do symmetric pools of servers;
854
* we have to live with the fact that a user can
855
* authorize itself as any ID that is allowed
856
* by the authzTo directive of the "proxyauthzdn".
859
* NOTE: current Proxy Authorization specification
860
* and implementation do not allow proxy authorization
861
* control to be provided with Bind requests
864
* if no bind took place yet, but the connection is bound
865
* and the "idassert-authcDN" (or other ID) is set,
866
* then bind as the asserting identity and explicitly
867
* add the proxyAuthz control to every operation with the
868
* dn bound to the connection as control value.
869
* This is done also if this is the authrizing backend,
870
* but the "override" flag is given to idassert.
871
* It allows to use SASL bind and yet proxyAuthz users
873
if ( op->o_conn != NULL &&
874
!op->o_do_not_cache &&
875
( BER_BVISNULL( &lc->lc_bound_ndn ) ||
876
( li->li_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) ) )
878
(void)ldap_back_proxy_authz_bind( lc, op, rs, sendok );
882
#ifdef HAVE_CYRUS_SASL
883
if ( LDAP_BACK_CONN_ISPRIV( lc )
884
&& li->li_acl_authmethod == LDAP_AUTH_SASL )
886
void *defaults = NULL;
888
if ( li->li_acl_secprops != NULL ) {
889
rc = ldap_set_option( lc->lc_ld,
890
LDAP_OPT_X_SASL_SECPROPS, li->li_acl_secprops);
892
if ( rc != LDAP_OPT_SUCCESS ) {
893
Debug( LDAP_DEBUG_ANY, "Error: ldap_set_option "
894
"(%s,SECPROPS,\"%s\") failed!\n",
895
li->li_uri, li->li_acl_secprops, 0 );
900
defaults = lutil_sasl_defaults( lc->lc_ld,
901
li->li_acl_sasl_mech.bv_val,
902
li->li_acl_sasl_realm.bv_val,
903
li->li_acl_authcID.bv_val,
904
li->li_acl_passwd.bv_val,
907
rs->sr_err = ldap_sasl_interactive_bind_s( lc->lc_ld,
908
li->li_acl_authcDN.bv_val,
909
li->li_acl_sasl_mech.bv_val, NULL, NULL,
910
LDAP_SASL_QUIET, lutil_sasl_interact,
913
lutil_sasl_freedefs( defaults );
915
rs->sr_err = slap_map_api2result( rs );
916
if ( rs->sr_err != LDAP_SUCCESS ) {
917
LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
918
send_ldap_result( op, rs );
921
LDAP_BACK_CONN_ISBOUND_SET( lc );
925
#endif /* HAVE_CYRUS_SASL */
928
rs->sr_err = ldap_sasl_bind( lc->lc_ld,
929
lc->lc_bound_ndn.bv_val,
930
LDAP_SASL_SIMPLE, &lc->lc_cred,
931
NULL, NULL, &msgid );
933
if ( rs->sr_err == LDAP_SERVER_DOWN ) {
934
if ( retries != LDAP_BACK_RETRY_NEVER ) {
936
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
939
assert( lc->lc_refcnt > 0 );
940
if ( lc->lc_refcnt == 1 ) {
941
ldap_unbind_ext( lc->lc_ld, NULL, NULL );
944
/* lc here must be the regular lc, reset and ready for init */
945
rs->sr_err = ldap_back_prepare_conn( &lc, op, rs, sendok );
946
if ( rs->sr_err != LDAP_SUCCESS ) {
953
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
956
if ( rs->sr_err == LDAP_SUCCESS ) {
965
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
969
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
973
ldap_back_freeconn( op, lc, dolock );
974
rs->sr_err = slap_map_api2result( rs );
979
rc = ldap_back_op_result( lc, op, rs, msgid, 0, sendok );
980
if ( rc == LDAP_SUCCESS ) {
981
LDAP_BACK_CONN_ISBOUND_SET( lc );
986
LDAP_BACK_CONN_BINDING_CLEAR( lc );
987
rc = LDAP_BACK_CONN_ISBOUND( lc );
989
ldap_back_release_conn_lock( op, rs, lc, dolock );
996
ldap_back_dobind( ldapconn_t *lc, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
998
ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1000
return ldap_back_dobind_int( lc, op, rs, sendok, li->li_nretries, 1 );
1004
* ldap_back_default_rebind
1006
* This is a callback used for chasing referrals using the same
1007
* credentials as the original user on this session.
1010
ldap_back_default_rebind( LDAP *ld, LDAP_CONST char *url, ber_tag_t request,
1011
ber_int_t msgid, void *params )
1013
ldapconn_t *lc = (ldapconn_t *)params;
1016
/* ... otherwise we couldn't get here */
1017
assert( lc != NULL );
1019
if ( !ldap_tls_inplace( ld ) ) {
1020
int is_tls = LDAP_BACK_CONN_ISTLS( lc ),
1022
const char *text = NULL;
1024
rc = ldap_back_start_tls( ld, 0, &is_tls, url, lc->lc_flags,
1025
LDAP_BACK_RETRY_DEFAULT, &text );
1026
if ( rc != LDAP_SUCCESS ) {
1030
#endif /* HAVE_TLS */
1032
/* FIXME: add checks on the URL/identity? */
1034
return ldap_sasl_bind_s( ld, lc->lc_bound_ndn.bv_val,
1035
LDAP_SASL_SIMPLE, &lc->lc_cred, NULL, NULL, NULL );
1039
ldap_back_op_result(
1045
ldap_back_send_t sendok )
1048
LDAPMessage *res = NULL;
1051
#define ERR_OK(err) ((err) == LDAP_SUCCESS || (err) == LDAP_COMPARE_FALSE || (err) == LDAP_COMPARE_TRUE)
1054
rs->sr_matched = NULL;
1056
/* if the error recorded in the reply corresponds
1057
* to a successful state, get the error from the
1058
* remote server response */
1059
if ( ERR_OK( rs->sr_err ) ) {
1064
tv.tv_sec = timeout;
1068
LDAP_BACK_TV_SET( &tv );
1072
/* if result parsing fails, note the failure reason */
1073
rc = ldap_result( lc->lc_ld, msgid, LDAP_MSG_ALL, &tv, &res );
1077
(void)ldap_abandon_ext( lc->lc_ld, msgid, NULL, NULL );
1078
rs->sr_err = op->o_protocol >= LDAP_VERSION3 ?
1079
LDAP_ADMINLIMIT_EXCEEDED : LDAP_OPERATIONS_ERROR;
1080
rs->sr_text = "Operation timed out";
1084
LDAP_BACK_TV_SET( &tv );
1085
ldap_pvt_thread_yield();
1089
ldap_get_option( lc->lc_ld, LDAP_OPT_ERROR_NUMBER,
1094
/* otherwise get the result; if it is not
1095
* LDAP_SUCCESS, record it in the reply
1096
* structure (this includes
1097
* LDAP_COMPARE_{TRUE|FALSE}) */
1099
rc = ldap_parse_result( lc->lc_ld, res, &rs->sr_err,
1100
&match, &text, NULL, NULL, 1 );
1101
#ifndef LDAP_NULL_IS_NULL
1102
if ( match != NULL && match[ 0 ] == '\0' ) {
1103
ldap_memfree( match );
1106
if ( text != NULL && text[ 0 ] == '\0' ) {
1107
ldap_memfree( text );
1110
#endif /* LDAP_NULL_IS_NULL */
1112
if ( rc != LDAP_SUCCESS ) {
1118
/* if the error in the reply structure is not
1119
* LDAP_SUCCESS, try to map it from client
1120
* to server error */
1121
if ( !ERR_OK( rs->sr_err ) ) {
1122
rs->sr_err = slap_map_api2result( rs );
1124
/* internal ops ( op->o_conn == NULL )
1125
* must not reply to client */
1126
if ( op->o_conn && !op->o_do_not_cache && match ) {
1128
/* record the (massaged) matched
1129
* DN into the reply structure */
1130
rs->sr_matched = match;
1134
( ( sendok & LDAP_BACK_SENDOK )
1135
|| ( ( sendok & LDAP_BACK_SENDERR ) && rs->sr_err != LDAP_SUCCESS ) ) )
1137
send_ldap_result( op, rs );
1140
if ( rs->sr_matched != match ) {
1141
free( (char *)rs->sr_matched );
1143
rs->sr_matched = NULL;
1144
ldap_memfree( match );
1147
ldap_memfree( text );
1150
return( ERR_OK( rs->sr_err ) ? LDAP_SUCCESS : rs->sr_err );
1153
/* return true if bound, false if failed */
1155
ldap_back_retry( ldapconn_t **lcp, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
1158
ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1160
assert( lcp != NULL );
1161
assert( *lcp != NULL );
1163
ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
1165
if ( (*lcp)->lc_refcnt == 1 ) {
1166
Debug( LDAP_DEBUG_ANY,
1167
"%s ldap_back_retry: retrying URI=\"%s\" DN=\"%s\"\n",
1168
op->o_log_prefix, li->li_uri,
1169
BER_BVISNULL( &(*lcp)->lc_bound_ndn ) ?
1170
"" : (*lcp)->lc_bound_ndn.bv_val );
1172
ldap_unbind_ext( (*lcp)->lc_ld, NULL, NULL );
1173
(*lcp)->lc_ld = NULL;
1174
LDAP_BACK_CONN_ISBOUND_CLEAR( (*lcp) );
1176
/* lc here must be the regular lc, reset and ready for init */
1177
rc = ldap_back_prepare_conn( lcp, op, rs, sendok );
1178
if ( rc != LDAP_SUCCESS ) {
1183
rc = ldap_back_dobind_int( *lcp, op, rs, sendok, 0, 0 );
1190
Debug( LDAP_DEBUG_TRACE,
1191
"ldap_back_retry: conn %p refcnt=%u unable to retry.\n",
1192
(void *)(*lcp), (*lcp)->lc_refcnt, 0 );
1194
ldap_back_release_conn_lock( op, rs, *lcp, 0 );
1198
rs->sr_err = LDAP_UNAVAILABLE;
1199
rs->sr_text = "unable to retry";
1200
send_ldap_result( op, rs );
1204
ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1210
ldap_back_proxy_authz_bind( ldapconn_t *lc, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
1212
ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1213
struct berval binddn = slap_empty_bv;
1214
struct berval bindcred = slap_empty_bv;
1220
if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
1221
ndn = op->o_conn->c_ndn;
1228
* FIXME: we need to let clients use proxyAuthz
1229
* otherwise we cannot do symmetric pools of servers;
1230
* we have to live with the fact that a user can
1231
* authorize itself as any ID that is allowed
1232
* by the authzTo directive of the "proxyauthzdn".
1235
* NOTE: current Proxy Authorization specification
1236
* and implementation do not allow proxy authorization
1237
* control to be provided with Bind requests
1240
* if no bind took place yet, but the connection is bound
1241
* and the "proxyauthzdn" is set, then bind as
1242
* "proxyauthzdn" and explicitly add the proxyAuthz
1243
* control to every operation with the dn bound
1244
* to the connection as control value.
1247
/* bind as proxyauthzdn only if no idassert mode
1248
* is requested, or if the client's identity
1250
switch ( li->li_idassert_mode ) {
1251
case LDAP_BACK_IDASSERT_LEGACY:
1252
if ( !BER_BVISNULL( &ndn ) && !BER_BVISEMPTY( &ndn ) ) {
1253
if ( !BER_BVISNULL( &li->li_idassert_authcDN ) && !BER_BVISEMPTY( &li->li_idassert_authcDN ) )
1255
binddn = li->li_idassert_authcDN;
1256
bindcred = li->li_idassert_passwd;
1263
/* NOTE: rootdn can always idassert */
1264
if ( BER_BVISNULL( &ndn ) && li->li_idassert_authz == NULL ) {
1265
if ( li->li_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1266
rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
1267
if ( sendok & LDAP_BACK_SENDERR ) {
1268
send_ldap_result( op, rs );
1270
LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
1273
rs->sr_err = LDAP_SUCCESS;
1274
binddn = slap_empty_bv;
1275
bindcred = slap_empty_bv;
1281
} else if ( li->li_idassert_authz && !be_isroot( op ) ) {
1282
struct berval authcDN;
1284
if ( BER_BVISNULL( &ndn ) ) {
1285
authcDN = slap_empty_bv;
1290
rs->sr_err = slap_sasl_matches( op, li->li_idassert_authz,
1291
&authcDN, &authcDN );
1292
if ( rs->sr_err != LDAP_SUCCESS ) {
1293
if ( li->li_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1294
if ( sendok & LDAP_BACK_SENDERR ) {
1295
send_ldap_result( op, rs );
1297
LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
1300
rs->sr_err = LDAP_SUCCESS;
1301
binddn = slap_empty_bv;
1302
bindcred = slap_empty_bv;
1310
binddn = li->li_idassert_authcDN;
1311
bindcred = li->li_idassert_passwd;
1316
if ( dobind && li->li_idassert_authmethod == LDAP_AUTH_SASL ) {
1317
#ifdef HAVE_CYRUS_SASL
1318
void *defaults = NULL;
1319
struct berval authzID = BER_BVNULL;
1322
/* if SASL supports native authz, prepare for it */
1323
if ( ( !op->o_do_not_cache || !op->o_is_auth_check ) &&
1324
( li->li_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) )
1326
switch ( li->li_idassert_mode ) {
1327
case LDAP_BACK_IDASSERT_OTHERID:
1328
case LDAP_BACK_IDASSERT_OTHERDN:
1329
authzID = li->li_idassert_authzID;
1332
case LDAP_BACK_IDASSERT_ANONYMOUS:
1333
BER_BVSTR( &authzID, "dn:" );
1336
case LDAP_BACK_IDASSERT_SELF:
1337
if ( BER_BVISNULL( &ndn ) ) {
1338
/* connection is not authc'd, so don't idassert */
1339
BER_BVSTR( &authzID, "dn:" );
1342
authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len;
1343
authzID.bv_val = slap_sl_malloc( authzID.bv_len + 1, op->o_tmpmemctx );
1344
AC_MEMCPY( authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
1345
AC_MEMCPY( authzID.bv_val + STRLENOF( "dn:" ),
1346
ndn.bv_val, ndn.bv_len + 1 );
1355
if ( li->li_idassert_secprops != NULL ) {
1356
rs->sr_err = ldap_set_option( lc->lc_ld,
1357
LDAP_OPT_X_SASL_SECPROPS,
1358
(void *)li->li_idassert_secprops );
1360
if ( rs->sr_err != LDAP_OPT_SUCCESS ) {
1361
rs->sr_err = LDAP_OTHER;
1362
if ( sendok & LDAP_BACK_SENDERR ) {
1363
send_ldap_result( op, rs );
1365
LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
1370
defaults = lutil_sasl_defaults( lc->lc_ld,
1371
li->li_idassert_sasl_mech.bv_val,
1372
li->li_idassert_sasl_realm.bv_val,
1373
li->li_idassert_authcID.bv_val,
1374
li->li_idassert_passwd.bv_val,
1377
rs->sr_err = ldap_sasl_interactive_bind_s( lc->lc_ld, binddn.bv_val,
1378
li->li_idassert_sasl_mech.bv_val, NULL, NULL,
1379
LDAP_SASL_QUIET, lutil_sasl_interact,
1382
rs->sr_err = slap_map_api2result( rs );
1383
if ( rs->sr_err != LDAP_SUCCESS ) {
1384
LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
1385
if ( sendok & LDAP_BACK_SENDERR ) {
1386
send_ldap_result( op, rs );
1390
LDAP_BACK_CONN_ISBOUND_SET( lc );
1393
lutil_sasl_freedefs( defaults );
1395
slap_sl_free( authzID.bv_val, op->o_tmpmemctx );
1399
#endif /* HAVE_CYRUS_SASL */
1402
switch ( li->li_idassert_authmethod ) {
1403
case LDAP_AUTH_NONE:
1404
LDAP_BACK_CONN_ISBOUND_SET( lc );
1407
case LDAP_AUTH_SIMPLE:
1408
rs->sr_err = ldap_sasl_bind( lc->lc_ld,
1409
binddn.bv_val, LDAP_SASL_SIMPLE,
1410
&bindcred, NULL, NULL, &msgid );
1415
LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
1416
rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED;
1417
if ( sendok & LDAP_BACK_SENDERR ) {
1418
send_ldap_result( op, rs );
1423
rc = ldap_back_op_result( lc, op, rs, msgid, 0, sendok );
1424
if ( rc == LDAP_SUCCESS ) {
1425
LDAP_BACK_CONN_ISBOUND_SET( lc );
1428
return LDAP_BACK_CONN_ISBOUND( lc );
1432
* ldap_back_proxy_authz_ctrl() prepends a proxyAuthz control
1433
* to existing server-side controls if required; if not,
1434
* the existing server-side controls are placed in *pctrls.
1435
* The caller, after using the controls in client API
1436
* operations, if ( *pctrls != op->o_ctrls ), should
1437
* free( (*pctrls)[ 0 ] ) and free( *pctrls ).
1438
* The function returns success if the control could
1439
* be added if required, or if it did nothing; in the future,
1440
* it might return some error if it failed.
1442
* if no bind took place yet, but the connection is bound
1443
* and the "proxyauthzdn" is set, then bind as "proxyauthzdn"
1444
* and explicitly add proxyAuthz the control to every operation
1445
* with the dn bound to the connection as control value.
1447
* If no server-side controls are defined for the operation,
1448
* simply add the proxyAuthz control; otherwise, if the
1449
* proxyAuthz control is not already set, add it as
1452
* FIXME: is controls order significant for security?
1453
* ANSWER: controls ordering and interoperability
1454
* must be indicated by the specs of each control; if none
1455
* is specified, the order is irrelevant.
1458
ldap_back_proxy_authz_ctrl(
1462
LDAPControl ***pctrls )
1464
ldapinfo_t *li = (ldapinfo_t *) op->o_bd->be_private;
1465
LDAPControl **ctrls = NULL;
1468
struct berval assertedID,
1473
rs->sr_err = LDAP_SUCCESS;
1475
/* FIXME: SASL/EXTERNAL over ldapi:// doesn't honor the authcID,
1476
* but if it is not set this test fails. We need a different
1477
* means to detect if idassert is enabled */
1478
if ( ( BER_BVISNULL( &li->li_idassert_authcID ) || BER_BVISEMPTY( &li->li_idassert_authcID ) )
1479
&& ( BER_BVISNULL( &li->li_idassert_authcDN ) || BER_BVISEMPTY( &li->li_idassert_authcDN ) ) )
1484
if ( !op->o_conn || op->o_do_not_cache || be_isroot( op ) ) {
1488
if ( op->o_tag == LDAP_REQ_BIND ) {
1489
ndn = op->o_req_ndn;
1491
} else if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
1492
ndn = op->o_conn->c_ndn;
1498
if ( li->li_idassert_mode == LDAP_BACK_IDASSERT_LEGACY ) {
1499
if ( op->o_proxy_authz ) {
1501
* FIXME: we do not want to perform proxyAuthz
1502
* on behalf of the client, because this would
1503
* be performed with "proxyauthzdn" privileges.
1505
* This might actually be too strict, since
1506
* the "proxyauthzdn" authzTo, and each entry's
1507
* authzFrom attributes may be crafted
1508
* to avoid unwanted proxyAuthz to take place.
1511
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1512
rs->sr_text = "proxyAuthz not allowed within namingContext";
1517
if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
1521
if ( BER_BVISNULL( &ndn ) ) {
1525
if ( BER_BVISNULL( &li->li_idassert_authcDN ) ) {
1529
} else if ( li->li_idassert_authmethod == LDAP_AUTH_SASL ) {
1530
if ( ( li->li_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ )
1531
/* && ( !BER_BVISNULL( &ndn )
1532
|| LDAP_BACK_CONN_ISBOUND( lc ) ) */ )
1534
/* already asserted in SASL via native authz */
1535
/* NOTE: the test on lc->lc_bound is used to trap
1536
* native authorization of anonymous users,
1537
* since in that case ndn is NULL */
1541
} else if ( li->li_idassert_authz && !be_isroot( op ) ) {
1543
struct berval authcDN;
1545
if ( BER_BVISNULL( &ndn ) ) {
1546
authcDN = slap_empty_bv;
1550
rc = slap_sasl_matches( op, li->li_idassert_authz,
1551
&authcDN, & authcDN );
1552
if ( rc != LDAP_SUCCESS ) {
1553
if ( li->li_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE )
1555
/* ndn is not authorized
1556
* to use idassert */
1563
if ( op->o_proxy_authz ) {
1566
* 1) ignore the already set proxyAuthz control
1567
* 2) leave it in place, and don't set ours
1569
* 4) reject the operation
1571
* option (4) is very drastic
1572
* option (3) will make the remote server reject
1573
* the operation, thus being equivalent to (4)
1574
* option (2) will likely break the idassert
1575
* assumptions, so we cannot accept it;
1576
* option (1) means that we are contradicting
1577
* the client's reques.
1579
* I think (4) is the only correct choice.
1581
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1582
rs->sr_text = "proxyAuthz not allowed within namingContext";
1585
if ( op->o_is_auth_check ) {
1586
mode = LDAP_BACK_IDASSERT_NOASSERT;
1589
mode = li->li_idassert_mode;
1593
case LDAP_BACK_IDASSERT_SELF:
1594
if ( BER_BVISNULL( &ndn ) ) {
1600
case LDAP_BACK_IDASSERT_LEGACY:
1601
/* original behavior:
1602
* assert the client's identity */
1603
if ( BER_BVISNULL( &ndn ) ) {
1604
assertedID = slap_empty_bv;
1610
case LDAP_BACK_IDASSERT_ANONYMOUS:
1611
/* assert "anonymous" */
1612
assertedID = slap_empty_bv;
1615
case LDAP_BACK_IDASSERT_NOASSERT:
1616
/* don't assert; bind as proxyauthzdn */
1619
case LDAP_BACK_IDASSERT_OTHERID:
1620
case LDAP_BACK_IDASSERT_OTHERDN:
1621
/* assert idassert DN */
1622
assertedID = li->li_idassert_authzID;
1629
if ( BER_BVISNULL( &assertedID ) ) {
1630
assertedID = slap_empty_bv;
1633
/* don't idassert the bound DN (ITS#4497) */
1634
if ( dn_match( &assertedID, &lc->lc_bound_ndn ) ) {
1638
if ( op->o_ctrls ) {
1639
for ( i = 0; op->o_ctrls[ i ]; i++ )
1640
/* just count ctrls */ ;
1643
ctrls = op->o_tmpalloc( sizeof( LDAPControl * ) * (i + 2) + sizeof( LDAPControl ),
1645
ctrls[ 0 ] = (LDAPControl *)&ctrls[ i + 2 ];
1647
ctrls[ 0 ]->ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
1648
ctrls[ 0 ]->ldctl_iscritical = 1;
1650
switch ( li->li_idassert_mode ) {
1651
/* already in u:ID or dn:DN form */
1652
case LDAP_BACK_IDASSERT_OTHERID:
1653
case LDAP_BACK_IDASSERT_OTHERDN:
1654
ber_dupbv_x( &ctrls[ 0 ]->ldctl_value, &assertedID, op->o_tmpmemctx );
1657
/* needs the dn: prefix */
1659
ctrls[ 0 ]->ldctl_value.bv_len = assertedID.bv_len + STRLENOF( "dn:" );
1660
ctrls[ 0 ]->ldctl_value.bv_val = op->o_tmpalloc( ctrls[ 0 ]->ldctl_value.bv_len + 1,
1662
AC_MEMCPY( ctrls[ 0 ]->ldctl_value.bv_val, "dn:", STRLENOF( "dn:" ) );
1663
AC_MEMCPY( &ctrls[ 0 ]->ldctl_value.bv_val[ STRLENOF( "dn:" ) ],
1664
assertedID.bv_val, assertedID.bv_len + 1 );
1668
if ( op->o_ctrls ) {
1669
for ( i = 0; op->o_ctrls[ i ]; i++ ) {
1670
ctrls[ i + 1 ] = op->o_ctrls[ i ];
1673
ctrls[ i + 1 ] = NULL;
1676
if ( ctrls == NULL ) {
1677
ctrls = op->o_ctrls;
1686
ldap_back_proxy_authz_ctrl_free( Operation *op, LDAPControl ***pctrls )
1688
LDAPControl **ctrls = *pctrls;
1690
/* we assume that the first control is the proxyAuthz
1691
* added by back-ldap, so it's the only one we explicitly
1693
if ( ctrls && ctrls != op->o_ctrls ) {
1694
assert( ctrls[ 0 ] != NULL );
1696
if ( !BER_BVISNULL( &ctrls[ 0 ]->ldctl_value ) ) {
1697
op->o_tmpfree( ctrls[ 0 ]->ldctl_value.bv_val, op->o_tmpmemctx );
1700
op->o_tmpfree( ctrls, op->o_tmpmemctx );