1 /* bind.c - ldap backend bind function */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1999-2007 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
15 * top-level directory of the distribution or, alternatively, at
16 * <http://www.OpenLDAP.org/license.html>.
19 * 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"
35 #undef ldap_debug /* silence a warning in ldap-int.h */
36 #include "../../../libraries/libldap/ldap-int.h"
38 #include "lutil_ldap.h"
40 #define LDAP_CONTROL_OBSOLETE_PROXY_AUTHZ "2.16.840.1.113730.3.4.12"
42 #if LDAP_BACK_PRINT_CONNTREE > 0
44 ldap_back_ravl_print( Avlnode *root, int depth )
53 ldap_back_ravl_print( root->avl_right, depth+1 );
55 for ( i = 0; i < depth; i++ ) {
56 fprintf( stderr, "-" );
60 fprintf( stderr, "lc=%p local=\"%s\" conn=%p %s refcnt=%d flags=0x%08x\n",
62 lc->lc_local_ndn.bv_val ? lc->lc_local_ndn.bv_val : "",
64 avl_bf2str( root->avl_bf ), lc->lc_refcnt, lc->lc_lcflags );
66 ldap_back_ravl_print( root->avl_left, depth+1 );
69 static char* priv2str[] = {
80 ldap_back_print_conntree( ldapinfo_t *li, char *msg )
84 fprintf( stderr, "========> %s\n", msg );
86 for ( c = LDAP_BACK_PCONN_FIRST; c < LDAP_BACK_PCONN_LAST; c++ ) {
90 fprintf( stderr, " %s[%d]\n", priv2str[ c ], li->li_conn_priv[ c ].lic_num );
92 LDAP_TAILQ_FOREACH( lc, &li->li_conn_priv[ c ].lic_priv, lc_q )
94 fprintf( stderr, " [%d] lc=%p local=\"%s\" conn=%p refcnt=%d flags=0x%08x\n",
97 lc->lc_local_ndn.bv_val ? lc->lc_local_ndn.bv_val : "",
98 (void *)lc->lc_conn, lc->lc_refcnt, lc->lc_lcflags );
103 if ( li->li_conninfo.lai_tree == 0 ) {
104 fprintf( stderr, "\t(empty)\n" );
107 ldap_back_ravl_print( li->li_conninfo.lai_tree, 0 );
110 fprintf( stderr, "<======== %s\n", msg );
112 #endif /* LDAP_BACK_PRINT_CONNTREE */
115 ldap_back_freeconn( ldapinfo_t *li, ldapconn_t *lc, int dolock );
118 ldap_back_getconn( Operation *op, SlapReply *rs, ldap_back_send_t sendok,
119 struct berval *binddn, struct berval *bindcred );
122 ldap_back_is_proxy_authz( Operation *op, SlapReply *rs, ldap_back_send_t sendok,
123 struct berval *binddn, struct berval *bindcred );
126 ldap_back_proxy_authz_bind( ldapconn_t *lc, Operation *op, SlapReply *rs,
127 ldap_back_send_t sendok, struct berval *binddn, struct berval *bindcred );
130 ldap_back_prepare_conn( ldapconn_t *lc, Operation *op, SlapReply *rs,
131 ldap_back_send_t sendok );
134 ldap_back_conndnlc_cmp( const void *c1, const void *c2 );
137 ldap_back_conn_delete( ldapinfo_t *li, ldapconn_t *lc )
139 if ( LDAP_BACK_PCONN_ISPRIV( lc ) ) {
140 if ( LDAP_BACK_CONN_CACHED( lc ) ) {
141 assert( lc->lc_q.tqe_prev != NULL );
142 assert( li->li_conn_priv[ LDAP_BACK_CONN2PRIV( lc ) ].lic_num > 0 );
143 li->li_conn_priv[ LDAP_BACK_CONN2PRIV( lc ) ].lic_num--;
144 LDAP_TAILQ_REMOVE( &li->li_conn_priv[ LDAP_BACK_CONN2PRIV( lc ) ].lic_priv, lc, lc_q );
145 LDAP_TAILQ_ENTRY_INIT( lc, lc_q );
146 LDAP_BACK_CONN_CACHED_CLEAR( lc );
149 assert( LDAP_BACK_CONN_TAINTED( lc ) );
150 assert( lc->lc_q.tqe_prev == NULL );
154 ldapconn_t *tmplc = NULL;
156 if ( LDAP_BACK_CONN_CACHED( lc ) ) {
157 assert( !LDAP_BACK_CONN_TAINTED( lc ) );
158 tmplc = avl_delete( &li->li_conninfo.lai_tree, (caddr_t)lc,
159 ldap_back_conndnlc_cmp );
160 assert( tmplc == lc );
161 LDAP_BACK_CONN_CACHED_CLEAR( lc );
164 assert( LDAP_BACK_CONN_TAINTED( lc ) || tmplc == lc );
171 ldap_back_bind( Operation *op, SlapReply *rs )
173 ldapinfo_t *li = (ldapinfo_t *) op->o_bd->be_private;
178 ldap_back_send_t retrying = LDAP_BACK_RETRYING;
180 lc = ldap_back_getconn( op, rs, LDAP_BACK_BIND_SERR, NULL, NULL );
185 /* we can do (almost) whatever we want with this conn,
186 * because either it's temporary, or it's marked as binding */
187 if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
188 ch_free( lc->lc_bound_ndn.bv_val );
189 BER_BVZERO( &lc->lc_bound_ndn );
191 if ( !BER_BVISNULL( &lc->lc_cred ) ) {
192 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len );
193 ch_free( lc->lc_cred.bv_val );
194 BER_BVZERO( &lc->lc_cred );
196 LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
199 /* method is always LDAP_AUTH_SIMPLE if we got here */
200 rs->sr_err = ldap_sasl_bind( lc->lc_ld, op->o_req_dn.bv_val,
202 &op->orb_cred, op->o_ctrls, NULL, &msgid );
203 /* FIXME: should we always retry, or only when piping the bind
204 * in the "override" connection pool? */
205 rc = ldap_back_op_result( lc, op, rs, msgid,
206 li->li_timeout[ SLAP_OP_BIND ],
207 LDAP_BACK_BIND_SERR | retrying );
208 if ( rc == LDAP_UNAVAILABLE && retrying ) {
209 retrying &= ~LDAP_BACK_RETRYING;
210 if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_BIND_SERR ) ) {
215 if ( rc == LDAP_SUCCESS ) {
216 /* If defined, proxyAuthz will be used also when
217 * back-ldap is the authorizing backend; for this
218 * purpose, after a successful bind the connection
219 * is left for further binds, and further operations
220 * on this client connection will use a default
221 * connection with identity assertion */
222 /* NOTE: use with care */
223 if ( li->li_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) {
224 ldap_back_release_conn( li, lc );
228 /* rebind is now done inside ldap_back_proxy_authz_bind()
229 * in case of success */
230 LDAP_BACK_CONN_ISBOUND_SET( lc );
231 ber_dupbv( &lc->lc_bound_ndn, &op->o_req_ndn );
233 if ( !BER_BVISNULL( &lc->lc_cred ) ) {
234 memset( lc->lc_cred.bv_val, 0,
235 lc->lc_cred.bv_len );
238 if ( LDAP_BACK_SAVECRED( li ) ) {
239 ber_bvreplace( &lc->lc_cred, &op->orb_cred );
240 ldap_set_rebind_proc( lc->lc_ld, li->li_rebind_f, lc );
243 lc->lc_cred.bv_len = 0;
247 /* must re-insert if local DN changed as result of bind */
248 if ( !LDAP_BACK_CONN_ISBOUND( lc )
249 || ( !dn_match( &op->o_req_ndn, &lc->lc_local_ndn )
250 && !LDAP_BACK_PCONN_ISPRIV( lc ) ) )
255 /* wait for all other ops to release the connection */
257 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
258 if ( lc->lc_refcnt > 1 ) {
259 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
260 ldap_pvt_thread_yield();
264 #if LDAP_BACK_PRINT_CONNTREE > 0
265 ldap_back_print_conntree( li, ">>> ldap_back_bind" );
266 #endif /* LDAP_BACK_PRINT_CONNTREE */
268 assert( lc->lc_refcnt == 1 );
269 ldap_back_conn_delete( li, lc );
271 /* delete all cached connections with the current connection */
272 if ( LDAP_BACK_SINGLECONN( li ) ) {
273 while ( ( tmplc = avl_delete( &li->li_conninfo.lai_tree, (caddr_t)lc, ldap_back_conn_cmp ) ) != NULL )
275 Debug( LDAP_DEBUG_TRACE,
276 "=>ldap_back_bind: destroying conn %ld (refcnt=%u)\n",
277 LDAP_BACK_PCONN_ID( lc ), lc->lc_refcnt, 0 );
279 if ( tmplc->lc_refcnt != 0 ) {
281 LDAP_BACK_CONN_TAINTED_SET( tmplc );
282 LDAP_BACK_CONN_CACHED_CLEAR( tmplc );
286 * Needs a test because the handler may be corrupted,
287 * and calling ldap_unbind on a corrupted header results
288 * in a segmentation fault
290 ldap_back_conn_free( tmplc );
295 if ( LDAP_BACK_CONN_ISBOUND( lc ) ) {
296 ber_bvreplace( &lc->lc_local_ndn, &op->o_req_ndn );
297 if ( be_isroot_dn( op->o_bd, &op->o_req_ndn ) ) {
298 LDAP_BACK_PCONN_ROOTDN_SET( lc, op );
300 lerr = avl_insert( &li->li_conninfo.lai_tree, (caddr_t)lc,
301 ldap_back_conndn_cmp, ldap_back_conndn_dup );
304 #if LDAP_BACK_PRINT_CONNTREE > 0
305 ldap_back_print_conntree( li, "<<< ldap_back_bind" );
306 #endif /* LDAP_BACK_PRINT_CONNTREE */
308 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
311 LDAP_BACK_CONN_CACHED_SET( lc );
315 /* duplicate; someone else successfully bound
316 * on the same connection with the same identity;
317 * we can do this because lc_refcnt == 1 */
318 ldap_back_conn_free( lc );
324 ldap_back_release_conn( li, lc );
331 * ldap_back_conndn_cmp
333 * compares two ldapconn_t based on the value of the conn pointer
334 * and of the local DN; used by avl stuff for insert, lookup
338 ldap_back_conndn_cmp( const void *c1, const void *c2 )
340 const ldapconn_t *lc1 = (const ldapconn_t *)c1;
341 const ldapconn_t *lc2 = (const ldapconn_t *)c2;
344 /* If local DNs don't match, it is definitely not a match */
345 /* For shared sessions, conn is NULL. Only explicitly
346 * bound sessions will have non-NULL conn.
348 rc = SLAP_PTRCMP( lc1->lc_conn, lc2->lc_conn );
350 rc = ber_bvcmp( &lc1->lc_local_ndn, &lc2->lc_local_ndn );
357 * ldap_back_conndnlc_cmp
359 * compares two ldapconn_t based on the value of the conn pointer,
360 * the local DN and the lc pointer; used by avl stuff for insert, lookup
364 ldap_back_conndnlc_cmp( const void *c1, const void *c2 )
366 const ldapconn_t *lc1 = (const ldapconn_t *)c1;
367 const ldapconn_t *lc2 = (const ldapconn_t *)c2;
370 /* If local DNs don't match, it is definitely not a match */
371 /* For shared sessions, conn is NULL. Only explicitly
372 * bound sessions will have non-NULL conn.
374 rc = SLAP_PTRCMP( lc1->lc_conn, lc2->lc_conn );
376 rc = ber_bvcmp( &lc1->lc_local_ndn, &lc2->lc_local_ndn );
378 rc = SLAP_PTRCMP( lc1, lc2 );
388 * compares two ldapconn_t based on the value of the conn pointer;
389 * used by avl stuff for delete of all conns with the same connid
392 ldap_back_conn_cmp( const void *c1, const void *c2 )
394 const ldapconn_t *lc1 = (const ldapconn_t *)c1;
395 const ldapconn_t *lc2 = (const ldapconn_t *)c2;
397 /* For shared sessions, conn is NULL. Only explicitly
398 * bound sessions will have non-NULL conn.
400 return SLAP_PTRCMP( lc1->lc_conn, lc2->lc_conn );
404 * ldap_back_conndn_dup
406 * returns -1 in case a duplicate ldapconn_t has been inserted;
410 ldap_back_conndn_dup( void *c1, void *c2 )
412 ldapconn_t *lc1 = (ldapconn_t *)c1;
413 ldapconn_t *lc2 = (ldapconn_t *)c2;
415 /* Cannot have more than one shared session with same DN */
416 if ( lc1->lc_conn == lc2->lc_conn &&
417 dn_match( &lc1->lc_local_ndn, &lc2->lc_local_ndn ) )
426 ldap_back_freeconn( ldapinfo_t *li, ldapconn_t *lc, int dolock )
429 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
432 #if LDAP_BACK_PRINT_CONNTREE > 0
433 ldap_back_print_conntree( li, ">>> ldap_back_freeconn" );
434 #endif /* LDAP_BACK_PRINT_CONNTREE */
436 (void)ldap_back_conn_delete( li, lc );
438 if ( lc->lc_refcnt == 0 ) {
439 ldap_back_conn_free( (void *)lc );
442 #if LDAP_BACK_PRINT_CONNTREE > 0
443 ldap_back_print_conntree( li, "<<< ldap_back_freeconn" );
444 #endif /* LDAP_BACK_PRINT_CONNTREE */
447 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
464 int rc = LDAP_SUCCESS;
466 /* start TLS ("tls-[try-]{start,propagate}" statements) */
467 if ( ( LDAP_BACK_USE_TLS_F( flags ) || ( *is_tls && LDAP_BACK_PROPAGATE_TLS_F( flags ) ) )
468 && !ldap_is_ldaps_url( url ) )
470 #ifdef SLAP_STARTTLS_ASYNCHRONOUS
472 * use asynchronous StartTLS
473 * in case, chase referral (not implemented yet)
477 if ( protocol == 0 ) {
478 ldap_get_option( ld, LDAP_OPT_PROTOCOL_VERSION,
482 if ( protocol < LDAP_VERSION3 ) {
483 /* we should rather bail out... */
484 rc = LDAP_UNWILLING_TO_PERFORM;
485 *text = "invalid protocol version";
488 if ( rc == LDAP_SUCCESS ) {
489 rc = ldap_start_tls( ld, NULL, NULL, &msgid );
492 if ( rc == LDAP_SUCCESS ) {
493 LDAPMessage *res = NULL;
496 LDAP_BACK_TV_SET( &tv );
499 rc = ldap_result( ld, msgid, LDAP_MSG_ALL, &tv, &res );
501 rc = LDAP_UNAVAILABLE;
503 } else if ( rc == 0 ) {
504 if ( retries != LDAP_BACK_RETRY_NEVER ) {
505 ldap_pvt_thread_yield();
509 LDAP_BACK_TV_SET( &tv );
512 rc = LDAP_UNAVAILABLE;
514 } else if ( rc == LDAP_RES_EXTENDED ) {
515 struct berval *data = NULL;
517 rc = ldap_parse_extended_result( ld, res,
519 if ( rc == LDAP_SUCCESS ) {
521 rc = ldap_parse_result( ld, res, &err,
522 NULL, NULL, NULL, NULL, 1 );
523 if ( rc == LDAP_SUCCESS ) {
528 /* FIXME: in case a referral
529 * is returned, should we try
530 * using it instead of the
532 if ( rc == LDAP_SUCCESS ) {
533 rc = ldap_install_tls( ld );
535 } else if ( rc == LDAP_REFERRAL ) {
536 rc = LDAP_UNWILLING_TO_PERFORM;
537 *text = "unwilling to chase referral returned by Start TLS exop";
541 if ( data->bv_val ) {
542 ber_memfree( data->bv_val );
556 #else /* ! SLAP_STARTTLS_ASYNCHRONOUS */
558 * use synchronous StartTLS
560 rc = ldap_start_tls_s( ld, NULL, NULL );
561 #endif /* ! SLAP_STARTTLS_ASYNCHRONOUS */
563 /* if StartTLS is requested, only attempt it if the URL
564 * is not "ldaps://"; this may occur not only in case
565 * of misconfiguration, but also when used in the chain
566 * overlay, where the "uri" can be parsed out of a referral */
572 case LDAP_SERVER_DOWN:
576 if ( LDAP_BACK_TLS_CRITICAL_F( flags ) ) {
577 *text = "could not start TLS";
581 /* in case Start TLS is not critical */
593 #endif /* HAVE_TLS */
596 ldap_back_prepare_conn( ldapconn_t *lc, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
598 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
602 int is_tls = op->o_conn->c_is_tls;
603 time_t lc_time = (time_t)(-1);
605 #endif /* HAVE_TLS */
607 ldap_pvt_thread_mutex_lock( &li->li_uri_mutex );
608 rs->sr_err = ldap_initialize( &ld, li->li_uri );
609 ldap_pvt_thread_mutex_unlock( &li->li_uri_mutex );
610 if ( rs->sr_err != LDAP_SUCCESS ) {
614 if ( li->li_urllist_f ) {
615 ldap_set_urllist_proc( ld, li->li_urllist_f, li->li_urllist_p );
618 /* Set LDAP version. This will always succeed: If the client
619 * bound with a particular version, then so can we.
621 if ( li->li_version != 0 ) {
622 version = li->li_version;
624 } else if ( op->o_protocol != 0 ) {
625 version = op->o_protocol;
628 /* assume it's an internal op; set to LDAPv3 */
629 version = LDAP_VERSION3;
631 ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, (const void *)&version );
633 /* automatically chase referrals ("chase-referrals [{yes|no}]" statement) */
634 ldap_set_option( ld, LDAP_OPT_REFERRALS,
635 LDAP_BACK_CHASE_REFERRALS( li ) ? LDAP_OPT_ON : LDAP_OPT_OFF );
637 if ( li->li_network_timeout > 0 ) {
640 tv.tv_sec = li->li_network_timeout;
642 ldap_set_option( ld, LDAP_OPT_NETWORK_TIMEOUT, (const void *)&tv );
646 if ( LDAP_BACK_CONN_ISPRIV( lc ) ) {
649 } else if ( LDAP_BACK_CONN_ISIDASSERT( lc ) ) {
650 sb = &li->li_idassert.si_bc;
656 if ( sb->sb_tls_do_init ) {
657 bindconf_tls_set( sb, ld );
658 } else if ( sb->sb_tls_ctx ) {
659 ldap_set_option( ld, LDAP_OPT_X_TLS_CTX, sb->sb_tls_ctx );
662 ldap_pvt_thread_mutex_lock( &li->li_uri_mutex );
663 rs->sr_err = ldap_back_start_tls( ld, op->o_protocol, &is_tls,
664 li->li_uri, li->li_flags, li->li_nretries, &rs->sr_text );
665 ldap_pvt_thread_mutex_unlock( &li->li_uri_mutex );
666 if ( rs->sr_err != LDAP_SUCCESS ) {
667 ldap_unbind_ext( ld, NULL, NULL );
668 rs->sr_text = "Start TLS failed";
671 } else if ( li->li_idle_timeout ) {
672 /* only touch when activity actually took place... */
673 lc_time = op->o_time;
675 #endif /* HAVE_TLS */
681 LDAP_BACK_CONN_ISTLS_SET( lc );
683 LDAP_BACK_CONN_ISTLS_CLEAR( lc );
685 if ( lc_time != (time_t)(-1) ) {
686 lc->lc_time = lc_time;
688 #endif /* HAVE_TLS */
691 if ( rs->sr_err != LDAP_SUCCESS ) {
692 rs->sr_err = slap_map_api2result( rs );
693 if ( sendok & LDAP_BACK_SENDERR ) {
694 if ( rs->sr_text == NULL ) {
695 rs->sr_text = "Proxy connection initialization failed";
697 send_ldap_result( op, rs );
701 if ( li->li_conn_ttl > 0 ) {
702 lc->lc_create_time = op->o_time;
713 ldap_back_send_t sendok,
714 struct berval *binddn,
715 struct berval *bindcred )
717 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
718 ldapconn_t *lc = NULL,
721 lookupconn = !( sendok & LDAP_BACK_BINDING );
723 /* if the server is quarantined, and
724 * - the current interval did not expire yet, or
725 * - no more retries should occur,
726 * don't return the connection */
727 if ( li->li_isquarantined ) {
728 slap_retry_info_t *ri = &li->li_quarantine;
731 if ( li->li_quarantine.ri_interval ) {
732 ldap_pvt_thread_mutex_lock( &li->li_quarantine_mutex );
733 if ( li->li_isquarantined == LDAP_BACK_FQ_YES ) {
734 dont_retry = ( ri->ri_num[ ri->ri_idx ] == SLAP_RETRYNUM_TAIL
735 || slap_get_time() < ri->ri_last + ri->ri_interval[ ri->ri_idx ] );
737 Debug( LDAP_DEBUG_ANY,
738 "%s: ldap_back_getconn quarantine "
739 "retry block #%d try #%d.\n",
740 op->o_log_prefix, ri->ri_idx, ri->ri_count );
741 li->li_isquarantined = LDAP_BACK_FQ_RETRYING;
744 ldap_pvt_thread_mutex_unlock( &li->li_quarantine_mutex );
748 rs->sr_err = LDAP_UNAVAILABLE;
749 if ( op->o_conn && ( sendok & LDAP_BACK_SENDERR ) ) {
750 rs->sr_text = "Target is quarantined";
751 send_ldap_result( op, rs );
757 /* Internal searches are privileged and shared. So is root. */
758 if ( op->o_do_not_cache || be_isroot( op ) ) {
759 LDAP_BACK_CONN_ISPRIV_SET( &lc_curr );
760 lc_curr.lc_local_ndn = op->o_bd->be_rootndn;
761 LDAP_BACK_PCONN_ROOTDN_SET( &lc_curr, op );
764 struct berval tmpbinddn,
771 if ( binddn == NULL ) {
774 if ( bindcred == NULL ) {
775 bindcred = &tmpbindcred;
777 if ( op->o_tag == LDAP_REQ_BIND ) {
778 save_o_dn = op->o_dn;
779 save_o_ndn = op->o_ndn;
780 op->o_dn = op->o_req_dn;
781 op->o_ndn = op->o_req_ndn;
783 isproxyauthz = ldap_back_is_proxy_authz( op, rs, sendok, binddn, bindcred );
784 if ( isproxyauthz == -1 ) {
787 if ( op->o_tag == LDAP_REQ_BIND ) {
788 op->o_dn = save_o_dn;
789 op->o_ndn = save_o_ndn;
792 lc_curr.lc_local_ndn = op->o_ndn;
793 /* Explicit binds must not be shared;
794 * however, explicit binds are piped in a special connection
795 * when idassert is to occur with "override" set */
796 if ( op->o_tag == LDAP_REQ_BIND && !isproxyauthz ) {
797 lc_curr.lc_conn = op->o_conn;
800 if ( isproxyauthz && !( sendok & LDAP_BACK_BINDING ) ) {
801 lc_curr.lc_local_ndn = *binddn;
802 LDAP_BACK_PCONN_ROOTDN_SET( &lc_curr, op );
803 LDAP_BACK_CONN_ISIDASSERT_SET( &lc_curr );
805 } else if ( isproxyauthz && ( li->li_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) ) {
806 lc_curr.lc_local_ndn = slap_empty_bv;
807 LDAP_BACK_PCONN_BIND_SET( &lc_curr, op );
808 LDAP_BACK_CONN_ISIDASSERT_SET( &lc_curr );
811 } else if ( SLAP_IS_AUTHZ_BACKEND( op ) ) {
812 lc_curr.lc_conn = op->o_conn;
815 LDAP_BACK_PCONN_ANON_SET( &lc_curr, op );
820 /* Explicit Bind requests always get their own conn */
823 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
824 if ( LDAP_BACK_PCONN_ISPRIV( &lc_curr ) ) {
825 /* lookup a conn that's not binding */
826 LDAP_TAILQ_FOREACH( lc,
827 &li->li_conn_priv[ LDAP_BACK_CONN2PRIV( &lc_curr ) ].lic_priv,
830 if ( !LDAP_BACK_CONN_BINDING( lc ) && lc->lc_refcnt == 0 ) {
836 if ( lc != LDAP_TAILQ_LAST( &li->li_conn_priv[ LDAP_BACK_CONN2PRIV( lc ) ].lic_priv,
839 LDAP_TAILQ_REMOVE( &li->li_conn_priv[ LDAP_BACK_CONN2PRIV( lc ) ].lic_priv,
841 LDAP_TAILQ_ENTRY_INIT( lc, lc_q );
842 LDAP_TAILQ_INSERT_TAIL( &li->li_conn_priv[ LDAP_BACK_CONN2PRIV( lc ) ].lic_priv,
846 } else if ( !LDAP_BACK_USE_TEMPORARIES( li )
847 && li->li_conn_priv[ LDAP_BACK_CONN2PRIV( &lc_curr ) ].lic_num == li->li_conn_priv_max )
849 lc = LDAP_TAILQ_FIRST( &li->li_conn_priv[ LDAP_BACK_CONN2PRIV( &lc_curr ) ].lic_priv );
854 /* Searches for a ldapconn in the avl tree */
855 lc = (ldapconn_t *)avl_find( li->li_conninfo.lai_tree,
856 (caddr_t)&lc_curr, ldap_back_conndn_cmp );
860 /* Don't reuse connections while they're still binding */
861 if ( LDAP_BACK_CONN_BINDING( lc ) ) {
862 if ( !LDAP_BACK_USE_TEMPORARIES( li ) ) {
863 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
865 ldap_pvt_thread_yield();
872 if ( op->o_tag == LDAP_REQ_BIND ) {
873 /* right now, this is the only possible case */
874 assert( ( li->li_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) );
875 LDAP_BACK_CONN_BINDING_SET( lc );
878 refcnt = ++lc->lc_refcnt;
881 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
884 /* Looks like we didn't get a bind. Open a new session... */
886 lc = (ldapconn_t *)ch_calloc( 1, sizeof( ldapconn_t ) );
887 lc->lc_flags = li->li_flags;
888 lc->lc_lcflags = lc_curr.lc_lcflags;
889 if ( ldap_back_prepare_conn( lc, op, rs, sendok ) != LDAP_SUCCESS ) {
894 if ( sendok & LDAP_BACK_BINDING ) {
895 LDAP_BACK_CONN_BINDING_SET( lc );
898 lc->lc_conn = lc_curr.lc_conn;
899 ber_dupbv( &lc->lc_local_ndn, &lc_curr.lc_local_ndn );
902 * the rationale is: connections as the rootdn are privileged,
903 * so acl_authcDN is to be used; however, in some cases
904 * one already configured identity assertion with a highly
905 * privileged idassert_authcDN, so if acl_authcDN is NULL
906 * and idassert_authcDN is not, use the second instead.
908 * might change in the future, because it's preferable
909 * to make clear what identity is being used, since
910 * the only drawback is that one risks to configure
911 * the same identity twice...
913 if ( LDAP_BACK_CONN_ISPRIV( &lc_curr ) ) {
914 if ( BER_BVISNULL( &li->li_acl_authcDN ) && !BER_BVISNULL( &li->li_idassert_authcDN ) ) {
915 ber_dupbv( &lc->lc_bound_ndn, &li->li_idassert_authcDN );
916 ber_dupbv( &lc->lc_cred, &li->li_idassert_passwd );
919 ber_dupbv( &lc->lc_bound_ndn, &li->li_acl_authcDN );
920 ber_dupbv( &lc->lc_cred, &li->li_acl_passwd );
922 LDAP_BACK_CONN_ISPRIV_SET( lc );
924 } else if ( LDAP_BACK_CONN_ISIDASSERT( &lc_curr ) ) {
925 if ( !LDAP_BACK_PCONN_ISBIND( &lc_curr ) ) {
926 ber_dupbv( &lc->lc_bound_ndn, &li->li_idassert_authcDN );
927 ber_dupbv( &lc->lc_cred, &li->li_idassert_passwd );
929 LDAP_BACK_CONN_ISIDASSERT_SET( lc );
932 BER_BVZERO( &lc->lc_cred );
933 BER_BVZERO( &lc->lc_bound_ndn );
934 if ( !BER_BVISEMPTY( &op->o_ndn )
935 && SLAP_IS_AUTHZ_BACKEND( op ) )
937 ber_dupbv( &lc->lc_bound_ndn, &op->o_ndn );
942 /* if start TLS failed but it was not mandatory,
943 * check if the non-TLS connection was already
944 * in cache; in case, destroy the newly created
945 * connection and use the existing one */
946 if ( LDAP_BACK_PCONN_ISTLS( lc )
947 && !ldap_tls_inplace( lc->lc_ld ) )
949 ldapconn_t *tmplc = NULL;
950 int idx = LDAP_BACK_CONN2PRIV( &lc_curr ) - 1;
952 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
953 LDAP_TAILQ_FOREACH( tmplc,
954 &li->li_conn_priv[ idx ].lic_priv,
957 if ( !LDAP_BACK_CONN_BINDING( tmplc ) ) {
962 if ( tmplc != NULL ) {
963 refcnt = ++tmplc->lc_refcnt;
964 ldap_back_conn_free( lc );
967 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
969 if ( tmplc != NULL ) {
973 #endif /* HAVE_TLS */
975 /* Inserts the newly created ldapconn in the avl tree */
976 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
978 LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
980 assert( lc->lc_refcnt == 1 );
982 #if LDAP_BACK_PRINT_CONNTREE > 0
983 ldap_back_print_conntree( li, ">>> ldap_back_getconn(insert)" );
984 #endif /* LDAP_BACK_PRINT_CONNTREE */
986 if ( LDAP_BACK_PCONN_ISPRIV( lc ) ) {
987 if ( li->li_conn_priv[ LDAP_BACK_CONN2PRIV( lc ) ].lic_num < li->li_conn_priv_max ) {
988 LDAP_TAILQ_INSERT_TAIL( &li->li_conn_priv[ LDAP_BACK_CONN2PRIV( lc ) ].lic_priv, lc, lc_q );
989 li->li_conn_priv[ LDAP_BACK_CONN2PRIV( lc ) ].lic_num++;
990 LDAP_BACK_CONN_CACHED_SET( lc );
993 LDAP_BACK_CONN_TAINTED_SET( lc );
998 rs->sr_err = avl_insert( &li->li_conninfo.lai_tree, (caddr_t)lc,
999 ldap_back_conndn_cmp, ldap_back_conndn_dup );
1000 LDAP_BACK_CONN_CACHED_SET( lc );
1003 #if LDAP_BACK_PRINT_CONNTREE > 0
1004 ldap_back_print_conntree( li, "<<< ldap_back_getconn(insert)" );
1005 #endif /* LDAP_BACK_PRINT_CONNTREE */
1007 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1009 if ( LogTest( LDAP_DEBUG_TRACE ) ) {
1010 char buf[ SLAP_TEXT_BUFLEN ];
1012 snprintf( buf, sizeof( buf ),
1013 "lc=%p inserted refcnt=%u rc=%d",
1014 (void *)lc, refcnt, rs->sr_err );
1016 Debug( LDAP_DEBUG_TRACE,
1017 "=>ldap_back_getconn: %s: %s\n",
1018 op->o_log_prefix, buf, 0 );
1021 if ( !LDAP_BACK_PCONN_ISPRIV( lc ) ) {
1022 /* Err could be -1 in case a duplicate ldapconn is inserted */
1023 switch ( rs->sr_err ) {
1028 LDAP_BACK_CONN_CACHED_CLEAR( lc );
1029 if ( !( sendok & LDAP_BACK_BINDING ) && !LDAP_BACK_USE_TEMPORARIES( li ) ) {
1030 /* duplicate: free and try to get the newly created one */
1031 ldap_back_conn_free( lc );
1036 /* taint connection, so that it'll be freed when released */
1037 LDAP_BACK_CONN_TAINTED_SET( lc );
1041 LDAP_BACK_CONN_CACHED_CLEAR( lc );
1042 ldap_back_conn_free( lc );
1043 rs->sr_err = LDAP_OTHER;
1044 rs->sr_text = "Proxy bind collision";
1045 if ( op->o_conn && ( sendok & LDAP_BACK_SENDERR ) ) {
1046 send_ldap_result( op, rs );
1055 if ( ( li->li_idle_timeout != 0 && op->o_time > lc->lc_time + li->li_idle_timeout )
1056 || ( li->li_conn_ttl != 0 && op->o_time > lc->lc_create_time + li->li_conn_ttl ) )
1060 /* let it be used, but taint/delete it so that
1061 * no-one else can look it up any further */
1062 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
1064 #if LDAP_BACK_PRINT_CONNTREE > 0
1065 ldap_back_print_conntree( li, ">>> ldap_back_getconn(timeout)" );
1066 #endif /* LDAP_BACK_PRINT_CONNTREE */
1068 (void)ldap_back_conn_delete( li, lc );
1069 LDAP_BACK_CONN_TAINTED_SET( lc );
1071 #if LDAP_BACK_PRINT_CONNTREE > 0
1072 ldap_back_print_conntree( li, "<<< ldap_back_getconn(timeout)" );
1073 #endif /* LDAP_BACK_PRINT_CONNTREE */
1075 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1078 if ( LogTest( LDAP_DEBUG_TRACE ) ) {
1079 char buf[ SLAP_TEXT_BUFLEN ];
1081 snprintf( buf, sizeof( buf ),
1082 "conn %p fetched refcnt=%u%s",
1084 expiring ? " expiring" : "" );
1085 Debug( LDAP_DEBUG_TRACE,
1086 "=>ldap_back_getconn: %s.\n", buf, 0, 0 );
1092 #endif /* HAVE_TLS */
1098 ldap_back_release_conn_lock(
1104 ldapconn_t *lc = *lcp;
1107 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
1109 assert( lc->lc_refcnt > 0 );
1110 LDAP_BACK_CONN_BINDING_CLEAR( lc );
1112 if ( LDAP_BACK_CONN_TAINTED( lc ) ) {
1113 ldap_back_freeconn( li, lc, 0 );
1117 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1122 ldap_back_quarantine(
1126 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1128 slap_retry_info_t *ri = &li->li_quarantine;
1130 ldap_pvt_thread_mutex_lock( &li->li_quarantine_mutex );
1132 if ( rs->sr_err == LDAP_UNAVAILABLE ) {
1133 time_t new_last = slap_get_time();
1135 switch ( li->li_isquarantined ) {
1136 case LDAP_BACK_FQ_NO:
1137 if ( ri->ri_last == new_last ) {
1141 Debug( LDAP_DEBUG_ANY,
1142 "%s: ldap_back_quarantine enter.\n",
1143 op->o_log_prefix, 0, 0 );
1149 case LDAP_BACK_FQ_RETRYING:
1150 Debug( LDAP_DEBUG_ANY,
1151 "%s: ldap_back_quarantine block #%d try #%d failed.\n",
1152 op->o_log_prefix, ri->ri_idx, ri->ri_count );
1155 if ( ri->ri_num[ ri->ri_idx ] != SLAP_RETRYNUM_FOREVER
1156 && ri->ri_count == ri->ri_num[ ri->ri_idx ] )
1167 li->li_isquarantined = LDAP_BACK_FQ_YES;
1168 ri->ri_last = new_last;
1170 } else if ( li->li_isquarantined != LDAP_BACK_FQ_NO ) {
1171 if ( ri->ri_last == slap_get_time() ) {
1175 Debug( LDAP_DEBUG_ANY,
1176 "%s: ldap_back_quarantine exit (%d) err=%d.\n",
1177 op->o_log_prefix, li->li_isquarantined, rs->sr_err );
1179 if ( li->li_quarantine_f ) {
1180 (void)li->li_quarantine_f( li, li->li_quarantine_p );
1185 li->li_isquarantined = LDAP_BACK_FQ_NO;
1189 ldap_pvt_thread_mutex_unlock( &li->li_quarantine_mutex );
1193 * ldap_back_dobind_int
1195 * Note: dolock indicates whether li->li_conninfo.lai_mutex must be locked or not
1198 ldap_back_dobind_int(
1202 ldap_back_send_t sendok,
1206 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1209 struct berval binddn = slap_empty_bv,
1210 bindcred = slap_empty_bv;
1217 assert( lcp != NULL );
1218 assert( retries >= 0 );
1220 if ( sendok & LDAP_BACK_GETCONN ) {
1221 assert( *lcp == NULL );
1223 lc = ldap_back_getconn( op, rs, sendok, &binddn, &bindcred );
1233 assert( lc != NULL );
1237 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
1240 if ( binding == 0 ) {
1241 /* check if already bound */
1242 rc = isbound = LDAP_BACK_CONN_ISBOUND( lc );
1245 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1250 if ( LDAP_BACK_CONN_BINDING( lc ) ) {
1251 /* if someone else is about to bind it, give up and retry */
1253 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1255 ldap_pvt_thread_yield();
1259 /* otherwise this thread will bind it */
1260 LDAP_BACK_CONN_BINDING_SET( lc );
1266 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1270 * FIXME: we need to let clients use proxyAuthz
1271 * otherwise we cannot do symmetric pools of servers;
1272 * we have to live with the fact that a user can
1273 * authorize itself as any ID that is allowed
1274 * by the authzTo directive of the "proxyauthzdn".
1277 * NOTE: current Proxy Authorization specification
1278 * and implementation do not allow proxy authorization
1279 * control to be provided with Bind requests
1282 * if no bind took place yet, but the connection is bound
1283 * and the "idassert-authcDN" (or other ID) is set,
1284 * then bind as the asserting identity and explicitly
1285 * add the proxyAuthz control to every operation with the
1286 * dn bound to the connection as control value.
1287 * This is done also if this is the authrizing backend,
1288 * but the "override" flag is given to idassert.
1289 * It allows to use SASL bind and yet proxyAuthz users
1291 if ( LDAP_BACK_CONN_ISIDASSERT( lc ) ) {
1292 if ( BER_BVISEMPTY( &binddn ) && BER_BVISEMPTY( &bindcred ) ) {
1293 /* if we got here, it shouldn't return result */
1294 rc = ldap_back_is_proxy_authz( op, rs,
1295 LDAP_BACK_DONTSEND, &binddn, &bindcred );
1298 rc = ldap_back_proxy_authz_bind( lc, op, rs, sendok, &binddn, &bindcred );
1302 #ifdef HAVE_CYRUS_SASL
1303 if ( LDAP_BACK_CONN_ISPRIV( lc )
1304 && li->li_acl_authmethod == LDAP_AUTH_SASL )
1306 void *defaults = NULL;
1308 if ( li->li_acl_secprops != NULL ) {
1309 rc = ldap_set_option( lc->lc_ld,
1310 LDAP_OPT_X_SASL_SECPROPS, li->li_acl_secprops );
1312 if ( rc != LDAP_OPT_SUCCESS ) {
1313 Debug( LDAP_DEBUG_ANY, "Error: ldap_set_option "
1314 "(SECPROPS,\"%s\") failed!\n",
1315 li->li_acl_secprops, 0, 0 );
1320 defaults = lutil_sasl_defaults( lc->lc_ld,
1321 li->li_acl_sasl_mech.bv_val,
1322 li->li_acl_sasl_realm.bv_val,
1323 li->li_acl_authcID.bv_val,
1324 li->li_acl_passwd.bv_val,
1327 rs->sr_err = ldap_sasl_interactive_bind_s( lc->lc_ld,
1328 li->li_acl_authcDN.bv_val,
1329 li->li_acl_sasl_mech.bv_val, NULL, NULL,
1330 LDAP_SASL_QUIET, lutil_sasl_interact,
1333 lutil_sasl_freedefs( defaults );
1335 rs->sr_err = slap_map_api2result( rs );
1336 if ( rs->sr_err != LDAP_SUCCESS ) {
1337 LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
1338 if ( sendok & LDAP_BACK_SENDERR ) {
1339 send_ldap_result( op, rs );
1343 LDAP_BACK_CONN_ISBOUND_SET( lc );
1346 if ( LDAP_BACK_QUARANTINE( li ) ) {
1347 ldap_back_quarantine( op, rs );
1352 #endif /* HAVE_CYRUS_SASL */
1355 rs->sr_err = ldap_sasl_bind( lc->lc_ld,
1356 BER_BVISNULL( &lc->lc_cred ) ? "" : lc->lc_bound_ndn.bv_val,
1357 LDAP_SASL_SIMPLE, &lc->lc_cred,
1358 NULL, NULL, &msgid );
1360 if ( rs->sr_err == LDAP_SERVER_DOWN ) {
1361 if ( retries != LDAP_BACK_RETRY_NEVER ) {
1363 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
1366 assert( lc->lc_refcnt > 0 );
1367 if ( lc->lc_refcnt == 1 ) {
1368 ldap_unbind_ext( lc->lc_ld, NULL, NULL );
1371 /* lc here must be the regular lc, reset and ready for init */
1372 rs->sr_err = ldap_back_prepare_conn( lc, op, rs, sendok );
1373 if ( rs->sr_err != LDAP_SUCCESS ) {
1374 sendok &= ~LDAP_BACK_SENDERR;
1380 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1383 if ( rs->sr_err == LDAP_SUCCESS ) {
1384 if ( retries > 0 ) {
1391 assert( lc->lc_refcnt == 1 );
1393 ldap_back_freeconn( li, lc, dolock );
1395 rs->sr_err = slap_map_api2result( rs );
1397 if ( LDAP_BACK_QUARANTINE( li ) ) {
1398 ldap_back_quarantine( op, rs );
1401 if ( rs->sr_err != LDAP_SUCCESS &&
1402 ( sendok & LDAP_BACK_SENDERR ) )
1404 rs->sr_text = "Internal proxy bind failure";
1405 send_ldap_result( op, rs );
1411 rc = ldap_back_op_result( lc, op, rs, msgid,
1412 -1, ( sendok | LDAP_BACK_BINDING ) );
1413 if ( rc == LDAP_SUCCESS ) {
1414 LDAP_BACK_CONN_ISBOUND_SET( lc );
1418 LDAP_BACK_CONN_BINDING_CLEAR( lc );
1419 rc = LDAP_BACK_CONN_ISBOUND( lc );
1421 ldap_back_release_conn_lock( li, lcp, dolock );
1423 } else if ( LDAP_BACK_SAVECRED( li ) ) {
1424 ldap_set_rebind_proc( lc->lc_ld, li->li_rebind_f, lc );
1433 * Note: dolock indicates whether li->li_conninfo.lai_mutex must be locked or not
1436 ldap_back_dobind( ldapconn_t **lcp, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
1438 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1440 return ldap_back_dobind_int( lcp, op, rs,
1441 ( sendok | LDAP_BACK_GETCONN ), li->li_nretries, 1 );
1445 * ldap_back_default_rebind
1447 * This is a callback used for chasing referrals using the same
1448 * credentials as the original user on this session.
1451 ldap_back_default_rebind( LDAP *ld, LDAP_CONST char *url, ber_tag_t request,
1452 ber_int_t msgid, void *params )
1454 ldapconn_t *lc = (ldapconn_t *)params;
1457 /* ... otherwise we couldn't get here */
1458 assert( lc != NULL );
1460 if ( !ldap_tls_inplace( ld ) ) {
1461 int is_tls = LDAP_BACK_CONN_ISTLS( lc ),
1463 const char *text = NULL;
1465 rc = ldap_back_start_tls( ld, 0, &is_tls, url, lc->lc_flags,
1466 LDAP_BACK_RETRY_DEFAULT, &text );
1467 if ( rc != LDAP_SUCCESS ) {
1471 #endif /* HAVE_TLS */
1473 /* FIXME: add checks on the URL/identity? */
1475 return ldap_sasl_bind_s( ld,
1476 BER_BVISNULL( &lc->lc_cred ) ? "" : lc->lc_bound_ndn.bv_val,
1477 LDAP_SASL_SIMPLE, &lc->lc_cred, NULL, NULL, NULL );
1481 * ldap_back_default_urllist
1484 ldap_back_default_urllist(
1486 LDAPURLDesc **urllist,
1490 ldapinfo_t *li = (ldapinfo_t *)params;
1491 LDAPURLDesc **urltail;
1493 if ( urllist == url ) {
1494 return LDAP_SUCCESS;
1497 for ( urltail = &(*url)->lud_next; *urltail; urltail = &(*urltail)->lud_next )
1500 *urltail = *urllist;
1504 ldap_pvt_thread_mutex_lock( &li->li_uri_mutex );
1506 ch_free( li->li_uri );
1509 ldap_get_option( ld, LDAP_OPT_URI, (void *)&li->li_uri );
1510 ldap_pvt_thread_mutex_unlock( &li->li_uri_mutex );
1512 return LDAP_SUCCESS;
1521 ldap_back_send_t sendok )
1523 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1525 /* default behavior */
1526 if ( LDAP_BACK_ABANDON( li ) ) {
1527 return ldap_abandon_ext( lc->lc_ld, msgid, NULL, NULL );
1530 if ( LDAP_BACK_IGNORE( li ) ) {
1531 return ldap_pvt_discard( lc->lc_ld, msgid );
1534 if ( LDAP_BACK_CANCEL( li ) ) {
1535 /* FIXME: asynchronous? */
1536 return ldap_cancel_s( lc->lc_ld, msgid, NULL, NULL );
1545 ldap_back_op_result(
1551 ldap_back_send_t sendok )
1553 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1558 LDAPControl **ctrls = NULL;
1560 #define ERR_OK(err) ((err) == LDAP_SUCCESS || (err) == LDAP_COMPARE_FALSE || (err) == LDAP_COMPARE_TRUE)
1563 rs->sr_matched = NULL;
1565 rs->sr_ctrls = NULL;
1567 /* if the error recorded in the reply corresponds
1568 * to a successful state, get the error from the
1569 * remote server response */
1570 if ( ERR_OK( rs->sr_err ) ) {
1573 LDAPMessage *res = NULL;
1574 time_t stoptime = (time_t)(-1);
1575 int timeout_err = op->o_protocol >= LDAP_VERSION3 ?
1576 LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER;
1577 const char *timeout_text = "Operation timed out";
1579 /* if timeout is not specified, compute and use
1580 * the one specific to the ongoing operation */
1581 if ( timeout == (time_t)(-1) ) {
1582 slap_op_t opidx = slap_req2op( op->o_tag );
1584 if ( opidx == SLAP_OP_SEARCH ) {
1585 if ( op->ors_tlimit <= 0 ) {
1589 timeout = op->ors_tlimit;
1590 timeout_err = LDAP_TIMELIMIT_EXCEEDED;
1591 timeout_text = NULL;
1595 timeout = li->li_timeout[ opidx ];
1599 /* better than nothing :) */
1600 if ( timeout == 0 ) {
1601 if ( li->li_idle_timeout ) {
1602 timeout = li->li_idle_timeout;
1604 } else if ( li->li_conn_ttl ) {
1605 timeout = li->li_conn_ttl;
1610 stoptime = op->o_time + timeout;
1613 LDAP_BACK_TV_SET( &tv );
1616 /* if result parsing fails, note the failure reason */
1617 rc = ldap_result( lc->lc_ld, msgid, LDAP_MSG_ALL, &tv, &res );
1620 if ( timeout && slap_get_time() > stoptime ) {
1621 if ( sendok & LDAP_BACK_BINDING ) {
1622 ldap_unbind_ext( lc->lc_ld, NULL, NULL );
1625 /* let it be used, but taint/delete it so that
1626 * no-one else can look it up any further */
1627 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
1629 #if LDAP_BACK_PRINT_CONNTREE > 0
1630 ldap_back_print_conntree( li, ">>> ldap_back_getconn(timeout)" );
1631 #endif /* LDAP_BACK_PRINT_CONNTREE */
1633 (void)ldap_back_conn_delete( li, lc );
1634 LDAP_BACK_CONN_TAINTED_SET( lc );
1636 #if LDAP_BACK_PRINT_CONNTREE > 0
1637 ldap_back_print_conntree( li, "<<< ldap_back_getconn(timeout)" );
1638 #endif /* LDAP_BACK_PRINT_CONNTREE */
1639 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1642 (void)ldap_back_cancel( lc, op, rs, msgid, sendok );
1644 rs->sr_err = timeout_err;
1645 rs->sr_text = timeout_text;
1650 LDAP_BACK_TV_SET( &tv );
1651 ldap_pvt_thread_yield();
1655 ldap_get_option( lc->lc_ld, LDAP_OPT_ERROR_NUMBER,
1660 /* otherwise get the result; if it is not
1661 * LDAP_SUCCESS, record it in the reply
1662 * structure (this includes
1663 * LDAP_COMPARE_{TRUE|FALSE}) */
1665 /* only touch when activity actually took place... */
1666 if ( li->li_idle_timeout && lc ) {
1667 lc->lc_time = op->o_time;
1670 rc = ldap_parse_result( lc->lc_ld, res, &rs->sr_err,
1671 &match, &text, &refs, &ctrls, 1 );
1673 if ( rc != LDAP_SUCCESS ) {
1676 if ( refs != NULL ) {
1679 for ( i = 0; refs[ i ] != NULL; i++ )
1681 rs->sr_ref = op->o_tmpalloc( sizeof( struct berval ) * ( i + 1 ),
1683 for ( i = 0; refs[ i ] != NULL; i++ ) {
1684 ber_str2bv( refs[ i ], 0, 0, &rs->sr_ref[ i ] );
1686 BER_BVZERO( &rs->sr_ref[ i ] );
1688 if ( ctrls != NULL ) {
1689 rs->sr_ctrls = ctrls;
1694 /* if the error in the reply structure is not
1695 * LDAP_SUCCESS, try to map it from client
1696 * to server error */
1697 if ( !ERR_OK( rs->sr_err ) ) {
1698 rs->sr_err = slap_map_api2result( rs );
1700 /* internal ops ( op->o_conn == NULL )
1701 * must not reply to client */
1702 if ( op->o_conn && !op->o_do_not_cache && match ) {
1704 /* record the (massaged) matched
1705 * DN into the reply structure */
1706 rs->sr_matched = match;
1710 if ( rs->sr_err == LDAP_UNAVAILABLE ) {
1711 if ( !( sendok & LDAP_BACK_RETRYING ) ) {
1712 if ( LDAP_BACK_QUARANTINE( li ) ) {
1713 ldap_back_quarantine( op, rs );
1715 if ( op->o_conn && ( sendok & LDAP_BACK_SENDERR ) ) {
1716 if ( rs->sr_text == NULL ) rs->sr_text = "Proxy operation retry failed";
1717 send_ldap_result( op, rs );
1721 } else if ( op->o_conn &&
1722 ( ( ( sendok & LDAP_BACK_SENDOK ) && ERR_OK( rs->sr_err ) )
1723 || ( ( sendok & LDAP_BACK_SENDERR ) && rs->sr_err != LDAP_SUCCESS ) ) )
1725 send_ldap_result( op, rs );
1729 if ( rs->sr_matched != match ) {
1730 free( (char *)rs->sr_matched );
1732 rs->sr_matched = NULL;
1733 ldap_memfree( match );
1737 ldap_memfree( text );
1742 assert( refs != NULL );
1743 ber_memvfree( (void **)refs );
1744 op->o_tmpfree( rs->sr_ref, op->o_tmpmemctx );
1749 assert( rs->sr_ctrls != NULL );
1750 ldap_controls_free( ctrls );
1751 rs->sr_ctrls = NULL;
1754 return( ERR_OK( rs->sr_err ) ? LDAP_SUCCESS : rs->sr_err );
1757 /* return true if bound, false if failed */
1759 ldap_back_retry( ldapconn_t **lcp, Operation *op, SlapReply *rs, ldap_back_send_t sendok )
1761 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1764 assert( lcp != NULL );
1765 assert( *lcp != NULL );
1767 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
1769 if ( (*lcp)->lc_refcnt == 1 ) {
1770 int binding = LDAP_BACK_CONN_BINDING( *lcp );
1772 ldap_pvt_thread_mutex_lock( &li->li_uri_mutex );
1773 Debug( LDAP_DEBUG_ANY,
1774 "%s ldap_back_retry: retrying URI=\"%s\" DN=\"%s\"\n",
1775 op->o_log_prefix, li->li_uri,
1776 BER_BVISNULL( &(*lcp)->lc_bound_ndn ) ?
1777 "" : (*lcp)->lc_bound_ndn.bv_val );
1778 ldap_pvt_thread_mutex_unlock( &li->li_uri_mutex );
1780 ldap_unbind_ext( (*lcp)->lc_ld, NULL, NULL );
1781 (*lcp)->lc_ld = NULL;
1782 LDAP_BACK_CONN_ISBOUND_CLEAR( (*lcp) );
1784 /* lc here must be the regular lc, reset and ready for init */
1785 rc = ldap_back_prepare_conn( *lcp, op, rs, sendok );
1786 if ( rc != LDAP_SUCCESS ) {
1787 /* freeit, because lc_refcnt == 1 */
1788 (*lcp)->lc_refcnt = 0;
1789 (void)ldap_back_freeconn( li, *lcp, 0 );
1793 } else if ( ( sendok & LDAP_BACK_BINDING ) ) {
1795 LDAP_BACK_CONN_BINDING_SET( *lcp );
1800 rc = ldap_back_dobind_int( lcp, op, rs, sendok, 0, 0 );
1801 if ( rc == 0 && *lcp != NULL ) {
1802 /* freeit, because lc_refcnt == 1 */
1803 (*lcp)->lc_refcnt = 0;
1804 LDAP_BACK_CONN_TAINTED_SET( *lcp );
1805 (void)ldap_back_freeconn( li, *lcp, 0 );
1811 Debug( LDAP_DEBUG_TRACE,
1812 "ldap_back_retry: conn %p refcnt=%u unable to retry.\n",
1813 (void *)(*lcp), (*lcp)->lc_refcnt, 0 );
1815 LDAP_BACK_CONN_TAINTED_SET( *lcp );
1816 ldap_back_release_conn_lock( li, lcp, 0 );
1817 assert( *lcp == NULL );
1819 if ( sendok & LDAP_BACK_SENDERR ) {
1820 rs->sr_err = LDAP_UNAVAILABLE;
1821 rs->sr_text = "Unable to retry";
1822 send_ldap_result( op, rs );
1826 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
1832 ldap_back_is_proxy_authz( Operation *op, SlapReply *rs, ldap_back_send_t sendok,
1833 struct berval *binddn, struct berval *bindcred )
1835 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1839 if ( op->o_conn == NULL || op->o_do_not_cache ) {
1843 /* don't proxyAuthz if protocol is not LDAPv3 */
1844 switch ( li->li_version ) {
1849 if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
1855 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1856 if ( sendok & LDAP_BACK_SENDERR ) {
1857 send_ldap_result( op, rs );
1864 *binddn = slap_empty_bv;
1865 *bindcred = slap_empty_bv;
1867 if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
1868 ndn = op->o_conn->c_ndn;
1874 switch ( li->li_idassert_mode ) {
1875 case LDAP_BACK_IDASSERT_LEGACY:
1876 if ( !BER_BVISNULL( &ndn ) && !BER_BVISEMPTY( &ndn ) ) {
1877 if ( !BER_BVISNULL( &li->li_idassert_authcDN ) && !BER_BVISEMPTY( &li->li_idassert_authcDN ) )
1879 *binddn = li->li_idassert_authcDN;
1880 *bindcred = li->li_idassert_passwd;
1887 /* NOTE: rootdn can always idassert */
1888 if ( BER_BVISNULL( &ndn )
1889 && li->li_idassert_authz == NULL
1890 && !( li->li_idassert_flags & LDAP_BACK_AUTH_AUTHZ_ALL ) )
1892 if ( li->li_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1893 rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
1894 if ( sendok & LDAP_BACK_SENDERR ) {
1895 send_ldap_result( op, rs );
1900 rs->sr_err = LDAP_SUCCESS;
1901 *binddn = slap_empty_bv;
1902 *bindcred = slap_empty_bv;
1908 } else if ( li->li_idassert_authz && !be_isroot( op ) ) {
1909 struct berval authcDN;
1911 if ( BER_BVISNULL( &ndn ) ) {
1912 authcDN = slap_empty_bv;
1917 rs->sr_err = slap_sasl_matches( op, li->li_idassert_authz,
1918 &authcDN, &authcDN );
1919 if ( rs->sr_err != LDAP_SUCCESS ) {
1920 if ( li->li_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
1921 if ( sendok & LDAP_BACK_SENDERR ) {
1922 send_ldap_result( op, rs );
1927 rs->sr_err = LDAP_SUCCESS;
1928 *binddn = slap_empty_bv;
1929 *bindcred = slap_empty_bv;
1937 *binddn = li->li_idassert_authcDN;
1938 *bindcred = li->li_idassert_passwd;
1948 ldap_back_proxy_authz_bind(
1952 ldap_back_send_t sendok,
1953 struct berval *binddn,
1954 struct berval *bindcred )
1956 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
1961 if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
1962 ndn = op->o_conn->c_ndn;
1968 if ( li->li_idassert_authmethod == LDAP_AUTH_SASL ) {
1969 #ifdef HAVE_CYRUS_SASL
1970 void *defaults = NULL;
1971 struct berval authzID = BER_BVNULL;
1974 /* if SASL supports native authz, prepare for it */
1975 if ( ( !op->o_do_not_cache || !op->o_is_auth_check ) &&
1976 ( li->li_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) )
1978 switch ( li->li_idassert_mode ) {
1979 case LDAP_BACK_IDASSERT_OTHERID:
1980 case LDAP_BACK_IDASSERT_OTHERDN:
1981 authzID = li->li_idassert_authzID;
1984 case LDAP_BACK_IDASSERT_ANONYMOUS:
1985 BER_BVSTR( &authzID, "dn:" );
1988 case LDAP_BACK_IDASSERT_SELF:
1989 if ( BER_BVISNULL( &ndn ) ) {
1990 /* connection is not authc'd, so don't idassert */
1991 BER_BVSTR( &authzID, "dn:" );
1994 authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len;
1995 authzID.bv_val = slap_sl_malloc( authzID.bv_len + 1, op->o_tmpmemctx );
1996 AC_MEMCPY( authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
1997 AC_MEMCPY( authzID.bv_val + STRLENOF( "dn:" ),
1998 ndn.bv_val, ndn.bv_len + 1 );
2007 if ( li->li_idassert_secprops != NULL ) {
2008 rs->sr_err = ldap_set_option( lc->lc_ld,
2009 LDAP_OPT_X_SASL_SECPROPS,
2010 (void *)li->li_idassert_secprops );
2012 if ( rs->sr_err != LDAP_OPT_SUCCESS ) {
2013 rs->sr_err = LDAP_OTHER;
2014 if ( sendok & LDAP_BACK_SENDERR ) {
2015 send_ldap_result( op, rs );
2017 LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
2022 defaults = lutil_sasl_defaults( lc->lc_ld,
2023 li->li_idassert_sasl_mech.bv_val,
2024 li->li_idassert_sasl_realm.bv_val,
2025 li->li_idassert_authcID.bv_val,
2026 li->li_idassert_passwd.bv_val,
2029 rs->sr_err = ldap_sasl_interactive_bind_s( lc->lc_ld, binddn->bv_val,
2030 li->li_idassert_sasl_mech.bv_val, NULL, NULL,
2031 LDAP_SASL_QUIET, lutil_sasl_interact,
2034 rs->sr_err = slap_map_api2result( rs );
2035 if ( rs->sr_err != LDAP_SUCCESS ) {
2036 LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
2037 if ( sendok & LDAP_BACK_SENDERR ) {
2038 send_ldap_result( op, rs );
2042 LDAP_BACK_CONN_ISBOUND_SET( lc );
2045 lutil_sasl_freedefs( defaults );
2047 slap_sl_free( authzID.bv_val, op->o_tmpmemctx );
2051 #endif /* HAVE_CYRUS_SASL */
2054 switch ( li->li_idassert_authmethod ) {
2055 case LDAP_AUTH_NONE:
2056 /* FIXME: do we really need this? */
2057 BER_BVSTR( binddn, "" );
2058 BER_BVSTR( bindcred, "" );
2061 case LDAP_AUTH_SIMPLE:
2062 rs->sr_err = ldap_sasl_bind( lc->lc_ld,
2063 binddn->bv_val, LDAP_SASL_SIMPLE,
2064 bindcred, NULL, NULL, &msgid );
2065 rc = ldap_back_op_result( lc, op, rs, msgid,
2066 -1, ( sendok | LDAP_BACK_BINDING ) );
2071 LDAP_BACK_CONN_ISBOUND_CLEAR( lc );
2072 rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED;
2073 if ( sendok & LDAP_BACK_SENDERR ) {
2074 send_ldap_result( op, rs );
2079 if ( rc == LDAP_SUCCESS ) {
2080 /* set rebind stuff in case of successful proxyAuthz bind,
2081 * so that referral chasing is attempted using the right
2083 LDAP_BACK_CONN_ISBOUND_SET( lc );
2084 ber_bvreplace( &lc->lc_bound_ndn, binddn );
2086 if ( !BER_BVISNULL( &lc->lc_cred ) ) {
2087 memset( lc->lc_cred.bv_val, 0,
2088 lc->lc_cred.bv_len );
2091 if ( LDAP_BACK_SAVECRED( li ) ) {
2092 ber_bvreplace( &lc->lc_cred, bindcred );
2093 ldap_set_rebind_proc( lc->lc_ld, li->li_rebind_f, lc );
2096 lc->lc_cred.bv_len = 0;
2100 return LDAP_BACK_CONN_ISBOUND( lc );
2104 * ldap_back_proxy_authz_ctrl() prepends a proxyAuthz control
2105 * to existing server-side controls if required; if not,
2106 * the existing server-side controls are placed in *pctrls.
2107 * The caller, after using the controls in client API
2108 * operations, if ( *pctrls != op->o_ctrls ), should
2109 * free( (*pctrls)[ 0 ] ) and free( *pctrls ).
2110 * The function returns success if the control could
2111 * be added if required, or if it did nothing; in the future,
2112 * it might return some error if it failed.
2114 * if no bind took place yet, but the connection is bound
2115 * and the "proxyauthzdn" is set, then bind as "proxyauthzdn"
2116 * and explicitly add proxyAuthz the control to every operation
2117 * with the dn bound to the connection as control value.
2119 * If no server-side controls are defined for the operation,
2120 * simply add the proxyAuthz control; otherwise, if the
2121 * proxyAuthz control is not already set, add it as
2124 * FIXME: is controls order significant for security?
2125 * ANSWER: controls ordering and interoperability
2126 * must be indicated by the specs of each control; if none
2127 * is specified, the order is irrelevant.
2130 ldap_back_proxy_authz_ctrl(
2131 struct berval *bound_ndn,
2133 slap_idassert_t *si,
2136 LDAPControl ***pctrls )
2138 LDAPControl **ctrls = NULL;
2140 slap_idassert_mode_t mode;
2141 struct berval assertedID,
2147 rs->sr_err = LDAP_SUCCESS;
2149 /* don't proxyAuthz if protocol is not LDAPv3 */
2150 switch ( version ) {
2155 if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
2164 /* FIXME: SASL/EXTERNAL over ldapi:// doesn't honor the authcID,
2165 * but if it is not set this test fails. We need a different
2166 * means to detect if idassert is enabled */
2167 if ( ( BER_BVISNULL( &si->si_bc.sb_authcId ) || BER_BVISEMPTY( &si->si_bc.sb_authcId ) )
2168 && ( BER_BVISNULL( &si->si_bc.sb_binddn ) || BER_BVISEMPTY( &si->si_bc.sb_binddn ) ) )
2173 if ( !op->o_conn || op->o_do_not_cache || ( isroot = be_isroot( op ) ) ) {
2177 if ( op->o_tag == LDAP_REQ_BIND ) {
2178 ndn = op->o_req_ndn;
2180 } else if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
2181 ndn = op->o_conn->c_ndn;
2187 if ( si->si_mode == LDAP_BACK_IDASSERT_LEGACY ) {
2188 if ( op->o_proxy_authz ) {
2190 * FIXME: we do not want to perform proxyAuthz
2191 * on behalf of the client, because this would
2192 * be performed with "proxyauthzdn" privileges.
2194 * This might actually be too strict, since
2195 * the "proxyauthzdn" authzTo, and each entry's
2196 * authzFrom attributes may be crafted
2197 * to avoid unwanted proxyAuthz to take place.
2200 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2201 rs->sr_text = "proxyAuthz not allowed within namingContext";
2206 if ( !BER_BVISNULL( bound_ndn ) ) {
2210 if ( BER_BVISNULL( &ndn ) ) {
2214 if ( BER_BVISNULL( &si->si_bc.sb_binddn ) ) {
2218 } else if ( si->si_bc.sb_method == LDAP_AUTH_SASL ) {
2219 if ( ( si->si_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) )
2221 /* already asserted in SASL via native authz */
2225 } else if ( si->si_authz && !isroot ) {
2227 struct berval authcDN;
2229 if ( BER_BVISNULL( &ndn ) ) {
2230 authcDN = slap_empty_bv;
2234 rc = slap_sasl_matches( op, si->si_authz,
2235 &authcDN, & authcDN );
2236 if ( rc != LDAP_SUCCESS ) {
2237 if ( si->si_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
2238 /* ndn is not authorized
2239 * to use idassert */
2246 if ( op->o_proxy_authz ) {
2249 * 1) ignore the already set proxyAuthz control
2250 * 2) leave it in place, and don't set ours
2252 * 4) reject the operation
2254 * option (4) is very drastic
2255 * option (3) will make the remote server reject
2256 * the operation, thus being equivalent to (4)
2257 * option (2) will likely break the idassert
2258 * assumptions, so we cannot accept it;
2259 * option (1) means that we are contradicting
2260 * the client's reques.
2262 * I think (4) is the only correct choice.
2264 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
2265 rs->sr_text = "proxyAuthz not allowed within namingContext";
2268 if ( op->o_is_auth_check ) {
2269 mode = LDAP_BACK_IDASSERT_NOASSERT;
2276 case LDAP_BACK_IDASSERT_LEGACY:
2277 /* original behavior:
2278 * assert the client's identity */
2279 case LDAP_BACK_IDASSERT_SELF:
2283 case LDAP_BACK_IDASSERT_ANONYMOUS:
2284 /* assert "anonymous" */
2285 assertedID = slap_empty_bv;
2288 case LDAP_BACK_IDASSERT_NOASSERT:
2289 /* don't assert; bind as proxyauthzdn */
2292 case LDAP_BACK_IDASSERT_OTHERID:
2293 case LDAP_BACK_IDASSERT_OTHERDN:
2294 /* assert idassert DN */
2295 assertedID = si->si_bc.sb_authzId;
2302 /* if we got here, "" is allowed to proxyAuthz */
2303 if ( BER_BVISNULL( &assertedID ) ) {
2304 assertedID = slap_empty_bv;
2307 /* don't idassert the bound DN (ITS#4497) */
2308 if ( dn_match( &assertedID, bound_ndn ) ) {
2312 if ( op->o_ctrls ) {
2313 for ( i = 0; op->o_ctrls[ i ]; i++ )
2314 /* just count ctrls */ ;
2317 ctrls = op->o_tmpalloc( sizeof( LDAPControl * ) * (i + 2) + sizeof( LDAPControl ),
2319 ctrls[ 0 ] = (LDAPControl *)&ctrls[ i + 2 ];
2321 ctrls[ 0 ]->ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
2322 ctrls[ 0 ]->ldctl_iscritical = 1;
2324 switch ( si->si_mode ) {
2325 /* already in u:ID or dn:DN form */
2326 case LDAP_BACK_IDASSERT_OTHERID:
2327 case LDAP_BACK_IDASSERT_OTHERDN:
2328 ber_dupbv_x( &ctrls[ 0 ]->ldctl_value, &assertedID, op->o_tmpmemctx );
2331 /* needs the dn: prefix */
2333 ctrls[ 0 ]->ldctl_value.bv_len = assertedID.bv_len + STRLENOF( "dn:" );
2334 ctrls[ 0 ]->ldctl_value.bv_val = op->o_tmpalloc( ctrls[ 0 ]->ldctl_value.bv_len + 1,
2336 AC_MEMCPY( ctrls[ 0 ]->ldctl_value.bv_val, "dn:", STRLENOF( "dn:" ) );
2337 AC_MEMCPY( &ctrls[ 0 ]->ldctl_value.bv_val[ STRLENOF( "dn:" ) ],
2338 assertedID.bv_val, assertedID.bv_len + 1 );
2342 /* Older versions of <draft-weltman-ldapv3-proxy> required
2343 * to encode the value of the authzID (and called it proxyDN);
2344 * this hack provides compatibility with those DSAs that
2345 * implement it this way */
2346 if ( si->si_flags & LDAP_BACK_AUTH_OBSOLETE_ENCODING_WORKAROUND ) {
2347 struct berval authzID = ctrls[ 0 ]->ldctl_value;
2348 BerElementBuffer berbuf;
2349 BerElement *ber = (BerElement *)&berbuf;
2352 ber_init2( ber, 0, LBER_USE_DER );
2353 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
2355 tag = ber_printf( ber, "O", &authzID );
2356 if ( tag == LBER_ERROR ) {
2357 rs->sr_err = LDAP_OTHER;
2361 if ( ber_flatten2( ber, &ctrls[ 0 ]->ldctl_value, 1 ) == -1 ) {
2362 rs->sr_err = LDAP_OTHER;
2367 op->o_tmpfree( authzID.bv_val, op->o_tmpmemctx );
2368 ber_free_buf( ber );
2370 if ( rs->sr_err != LDAP_SUCCESS ) {
2371 op->o_tmpfree( ctrls, op->o_tmpmemctx );
2376 } else if ( si->si_flags & LDAP_BACK_AUTH_OBSOLETE_PROXY_AUTHZ ) {
2377 struct berval authzID = ctrls[ 0 ]->ldctl_value,
2379 BerElementBuffer berbuf;
2380 BerElement *ber = (BerElement *)&berbuf;
2383 if ( strncasecmp( authzID.bv_val, "dn:", STRLENOF( "dn:" ) ) != 0 ) {
2384 op->o_tmpfree( ctrls[ 0 ]->ldctl_value.bv_val, op->o_tmpmemctx );
2385 op->o_tmpfree( ctrls, op->o_tmpmemctx );
2387 rs->sr_err = LDAP_PROTOCOL_ERROR;
2392 tmp.bv_val += STRLENOF( "dn:" );
2393 tmp.bv_len -= STRLENOF( "dn:" );
2395 ber_init2( ber, 0, LBER_USE_DER );
2396 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
2398 /* apparently, Mozilla API encodes this
2399 * as "SEQUENCE { LDAPDN }" */
2400 tag = ber_printf( ber, "{O}", &tmp );
2401 if ( tag == LBER_ERROR ) {
2402 rs->sr_err = LDAP_OTHER;
2406 if ( ber_flatten2( ber, &ctrls[ 0 ]->ldctl_value, 1 ) == -1 ) {
2407 rs->sr_err = LDAP_OTHER;
2412 op->o_tmpfree( authzID.bv_val, op->o_tmpmemctx );
2413 ber_free_buf( ber );
2415 if ( rs->sr_err != LDAP_SUCCESS ) {
2416 op->o_tmpfree( ctrls, op->o_tmpmemctx );
2421 ctrls[ 0 ]->ldctl_oid = LDAP_CONTROL_OBSOLETE_PROXY_AUTHZ;
2424 if ( op->o_ctrls ) {
2425 for ( i = 0; op->o_ctrls[ i ]; i++ ) {
2426 ctrls[ i + 1 ] = op->o_ctrls[ i ];
2429 ctrls[ i + 1 ] = NULL;
2432 if ( ctrls == NULL ) {
2433 ctrls = op->o_ctrls;
2442 ldap_back_proxy_authz_ctrl_free( Operation *op, LDAPControl ***pctrls )
2444 LDAPControl **ctrls = *pctrls;
2446 /* we assume that the first control is the proxyAuthz
2447 * added by back-ldap, so it's the only one we explicitly
2449 if ( ctrls && ctrls != op->o_ctrls ) {
2450 assert( ctrls[ 0 ] != NULL );
2452 if ( !BER_BVISNULL( &ctrls[ 0 ]->ldctl_value ) ) {
2453 op->o_tmpfree( ctrls[ 0 ]->ldctl_value.bv_val, op->o_tmpmemctx );
2456 op->o_tmpfree( ctrls, op->o_tmpmemctx );