1 /* bind.c - ldap backend bind function */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1999-2004 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 the Howard Chu for inclusion
20 * in OpenLDAP Software and subsequently enhanced by Pierangelo
28 #include <ac/socket.h>
29 #include <ac/string.h>
33 #include "back-ldap.h"
35 #include <lutil_ldap.h>
37 #define PRINT_CONNTREE 0
39 static LDAP_REBIND_PROC ldap_back_rebind;
46 struct ldapinfo *li = (struct ldapinfo *) op->o_bd->be_private;
49 struct berval mdn = BER_BVNULL;
54 lc = ldap_back_getconn(op, rs);
60 * Rewrite the bind dn if needed
62 dc.rwmap = &li->rwmap;
71 if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
72 send_ldap_result( op, rs );
76 if ( !BER_BVISNULL( &lc->bound_dn ) ) {
77 ch_free( lc->bound_dn.bv_val );
78 BER_BVZERO( &lc->bound_dn );
81 /* method is always LDAP_AUTH_SIMPLE if we got here */
82 rs->sr_err = ldap_sasl_bind(lc->ld, mdn.bv_val, LDAP_SASL_SIMPLE,
83 &op->oq_bind.rb_cred, op->o_ctrls, NULL, &msgid);
84 rc = ldap_back_op_result( lc, op, rs, msgid, 1 );
85 if (rc == LDAP_SUCCESS) {
87 if ( mdn.bv_val != op->o_req_dn.bv_val ) {
90 ber_dupbv( &lc->bound_dn, &op->o_req_dn );
95 if ( !BER_BVISNULL( &lc->cred ) ) {
96 memset( lc->cred.bv_val, 0, lc->cred.bv_len );
97 ch_free( lc->cred.bv_val );
99 ber_dupbv( &lc->cred, &op->oq_bind.rb_cred );
100 ldap_set_rebind_proc( lc->ld, ldap_back_rebind, lc );
104 /* must re-insert if local DN changed as result of bind */
105 if ( lc->bound && !bvmatch(&op->o_req_ndn, &lc->local_dn ) ) {
108 ldap_pvt_thread_mutex_lock( &li->conn_mutex );
109 lc = avl_delete( &li->conntree, (caddr_t)lc,
110 ldap_back_conn_cmp );
111 if ( !BER_BVISNULL( &lc->local_dn ) )
112 ch_free( lc->local_dn.bv_val );
113 ber_dupbv( &lc->local_dn, &op->o_req_ndn );
114 lerr = avl_insert( &li->conntree, (caddr_t)lc,
115 ldap_back_conn_cmp, ldap_back_conn_dup );
116 ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
118 ldap_back_conn_free( lc );
122 if ( !BER_BVISNULL( &mdn ) && mdn.bv_val != op->o_req_dn.bv_val ) {
132 * compares two struct ldapconn based on the value of the conn pointer;
141 const struct ldapconn *lc1 = (const struct ldapconn *)c1;
142 const struct ldapconn *lc2 = (const struct ldapconn *)c2;
145 /* If local DNs don't match, it is definitely not a match */
146 if ( ( rc = ber_bvcmp( &lc1->local_dn, &lc2->local_dn ) ) )
149 /* For shared sessions, conn is NULL. Only explicitly
150 * bound sessions will have non-NULL conn.
152 return SLAP_PTRCMP(lc1->conn, lc2->conn);
158 * returns -1 in case a duplicate struct ldapconn has been inserted;
167 struct ldapconn *lc1 = (struct ldapconn *)c1;
168 struct ldapconn *lc2 = (struct ldapconn *)c2;
170 /* Cannot have more than one shared session with same DN */
171 if ( dn_match( &lc1->local_dn, &lc2->local_dn ) &&
172 lc1->conn == lc2->conn ) return -1;
177 #if PRINT_CONNTREE > 0
178 static void ravl_print( Avlnode *root, int depth )
186 ravl_print( root->avl_right, depth+1 );
188 for ( i = 0; i < depth; i++ )
192 printf( "lc(%lx) local(%s) conn(%lx) %d\n",
193 lc, lc->local_dn.bv_val, lc->conn, root->avl_bf );
195 ravl_print( root->avl_left, depth+1 );
198 static void myprint( Avlnode *root )
200 printf( "********\n" );
203 printf( "\tNULL\n" );
206 ravl_print( root, 0 );
208 printf( "********\n" );
210 #endif /* PRINT_CONNTREE */
213 ldap_back_freeconn( Operation *op, struct ldapconn *lc )
215 struct ldapinfo *li = (struct ldapinfo *) op->o_bd->be_private;
217 ldap_pvt_thread_mutex_lock( &li->conn_mutex );
218 lc = avl_delete( &li->conntree, (caddr_t)lc,
219 ldap_back_conn_cmp );
220 ldap_back_conn_free( (void *)lc );
221 ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
227 ldap_back_getconn(Operation *op, SlapReply *rs)
229 struct ldapinfo *li = (struct ldapinfo *)op->o_bd->be_private;
230 struct ldapconn *lc, lc_curr;
234 /* Searches for a ldapconn in the avl tree */
236 /* Explicit binds must not be shared */
237 if ( op->o_tag == LDAP_REQ_BIND
238 || ( op->o_conn && op->o_bd == op->o_conn->c_authz_backend ) ) {
239 lc_curr.conn = op->o_conn;
245 /* Internal searches are privileged and shared. So is root. */
246 if ( op->o_do_not_cache || be_isroot( op ) ) {
247 lc_curr.local_dn = op->o_bd->be_rootndn;
252 lc_curr.local_dn = op->o_ndn;
255 ldap_pvt_thread_mutex_lock( &li->conn_mutex );
256 lc = (struct ldapconn *)avl_find( li->conntree,
257 (caddr_t)&lc_curr, ldap_back_conn_cmp );
258 ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
260 /* Looks like we didn't get a bind. Open a new session... */
262 int vers = op->o_protocol;
263 rs->sr_err = ldap_initialize(&ld, li->url);
265 if (rs->sr_err != LDAP_SUCCESS) {
266 rs->sr_err = slap_map_api2result( rs );
267 if (rs->sr_text == NULL) {
268 rs->sr_text = "ldap_initialize() failed";
270 if (op->o_conn) send_ldap_result( op, rs );
274 /* Set LDAP version. This will always succeed: If the client
275 * bound with a particular version, then so can we.
277 ldap_set_option(ld, LDAP_OPT_PROTOCOL_VERSION,
278 (const void *)&vers);
279 /* FIXME: configurable? */
280 ldap_set_option(ld, LDAP_OPT_REFERRALS, LDAP_OPT_ON);
282 lc = (struct ldapconn *)ch_malloc(sizeof(struct ldapconn));
283 lc->conn = lc_curr.conn;
285 ber_dupbv( &lc->local_dn, &lc_curr.local_dn );
287 #ifdef ENABLE_REWRITE
289 * Sets a cookie for the rewrite session
291 * FIXME: the o_conn might be no longer valid,
292 * since we may have different entries
293 * for the same connection
295 ( void )rewrite_session_init( li->rwmap.rwm_rw, op->o_conn );
296 #endif /* ENABLE_REWRITE */
298 ldap_pvt_thread_mutex_init( &lc->lc_mutex );
301 ber_dupbv( &lc->cred, &li->acl_passwd );
302 ber_dupbv( &lc->bound_dn, &li->acl_authcDN );
305 BER_BVZERO( &lc->cred );
306 BER_BVZERO( &lc->bound_dn );
307 if ( op->o_conn && !BER_BVISEMPTY( &op->o_conn->c_dn )
308 && ( op->o_bd == op->o_conn->c_authz_backend ) ) {
314 * Rewrite the bind dn if needed
316 dc.rwmap = &li->rwmap;
317 #ifdef ENABLE_REWRITE
318 dc.conn = op->o_conn;
326 if ( ldap_back_dn_massage( &dc, &op->o_conn->c_dn, &bv ) ) {
327 send_ldap_result( op, rs );
331 if ( bv.bv_val == op->o_conn->c_dn.bv_val ) {
332 ber_dupbv( &lc->bound_dn, &bv );
341 /* Inserts the newly created ldapconn in the avl tree */
342 ldap_pvt_thread_mutex_lock( &li->conn_mutex );
343 rs->sr_err = avl_insert( &li->conntree, (caddr_t)lc,
344 ldap_back_conn_cmp, ldap_back_conn_dup );
346 #if PRINT_CONNTREE > 0
347 myprint( li->conntree );
348 #endif /* PRINT_CONNTREE */
350 ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
352 Debug( LDAP_DEBUG_TRACE,
353 "=>ldap_back_getconn: conn %p inserted\n", (void *) lc, 0, 0 );
355 /* Err could be -1 in case a duplicate ldapconn is inserted */
356 if ( rs->sr_err != 0 ) {
357 ldap_back_conn_free( lc );
359 send_ldap_error( op, rs, LDAP_OTHER,
360 "internal server error" );
365 Debug( LDAP_DEBUG_TRACE,
366 "=>ldap_back_getconn: conn %p fetched\n", (void *) lc, 0, 0 );
375 * Note: as the check for the value of lc->bound was already here, I removed
376 * it from all the callers, and I made the function return the flag, so
377 * it can be used to simplify the check.
380 ldap_back_dobind( struct ldapconn *lc, Operation *op, SlapReply *rs )
382 struct ldapinfo *li = (struct ldapinfo *)op->o_bd->be_private;
386 ldap_pvt_thread_mutex_lock( &lc->lc_mutex );
388 #ifdef LDAP_BACK_PROXY_AUTHZ
390 * FIXME: we need to let clients use proxyAuthz
391 * otherwise we cannot do symmetric pools of servers;
392 * we have to live with the fact that a user can
393 * authorize itself as any ID that is allowed
394 * by the authzTo directive of the "proxyauthzdn".
397 * NOTE: current Proxy Authorization specification
398 * and implementation do not allow proxy authorization
399 * control to be provided with Bind requests
402 * if no bind took place yet, but the connection is bound
403 * and the "proxyauthzdn" is set, then bind as
404 * "proxyauthzdn" and explicitly add the proxyAuthz
405 * control to every operation with the dn bound
406 * to the connection as control value.
408 if ( op->o_conn != NULL && BER_BVISNULL( &lc->bound_dn ) ) {
409 struct berval binddn = slap_empty_bv;
410 struct berval bindcred = slap_empty_bv;
413 /* bind as proxyauthzdn only if no idassert mode
414 * is requested, or if the client's identity
416 switch ( li->idassert_mode ) {
417 case LDAP_BACK_IDASSERT_LEGACY:
418 if ( !BER_BVISNULL( &op->o_conn->c_dn ) && !BER_BVISEMPTY( &op->o_conn->c_dn ) ) {
419 if ( !BER_BVISNULL( &li->idassert_authcDN ) && !BER_BVISEMPTY( &li->idassert_authcDN ) )
421 binddn = li->idassert_authcDN;
422 bindcred = li->idassert_passwd;
429 if ( li->idassert_authz ) {
430 struct berval authcDN = BER_BVISNULL( &op->o_conn->c_dn ) ? slap_empty_bv : op->o_conn->c_dn;
432 rs->sr_err = slap_sasl_matches( op, li->idassert_authz,
433 &authcDN, &authcDN );
434 if ( rs->sr_err != LDAP_SUCCESS ) {
435 send_ldap_result( op, rs );
441 binddn = li->idassert_authcDN;
442 bindcred = li->idassert_passwd;
447 if ( dobind && li->idassert_authmethod == LDAP_AUTH_SASL ) {
448 #ifdef HAVE_CYRUS_SASL
449 void *defaults = NULL;
450 struct berval authzID = BER_BVNULL;
453 /* if SASL supports native authz, prepare for it */
454 if ( ( !op->o_do_not_cache || !op->o_is_auth_check ) &&
455 ( li->idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) )
457 switch ( li->idassert_mode ) {
458 case LDAP_BACK_IDASSERT_OTHERID:
459 case LDAP_BACK_IDASSERT_OTHERDN:
460 authzID = li->idassert_authzID;
463 case LDAP_BACK_IDASSERT_ANONYMOUS:
464 BER_BVSTR( &authzID, "dn:" );
467 case LDAP_BACK_IDASSERT_SELF:
468 if ( BER_BVISNULL( &op->o_conn->c_dn ) ) {
469 /* connection is not authc'd, so don't idassert */
470 BER_BVSTR( &authzID, "dn:" );
473 authzID.bv_len = STRLENOF( "dn:" ) + op->o_conn->c_dn.bv_len;
474 authzID.bv_val = slap_sl_malloc( authzID.bv_len + 1, op->o_tmpmemctx );
475 AC_MEMCPY( authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
476 AC_MEMCPY( authzID.bv_val + STRLENOF( "dn:" ),
477 op->o_conn->c_dn.bv_val, op->o_conn->c_dn.bv_len + 1 );
486 #if 0 /* will deal with this later... */
487 if ( sasl_secprops != NULL ) {
488 rs->sr_err = ldap_set_option( lc->ld, LDAP_OPT_X_SASL_SECPROPS,
489 (void *) sasl_secprops );
491 if ( rs->sr_err != LDAP_OPT_SUCCESS ) {
492 send_ldap_result( op, rs );
500 defaults = lutil_sasl_defaults( lc->ld,
501 li->idassert_sasl_mech.bv_val,
502 li->idassert_sasl_realm.bv_val,
503 li->idassert_authcID.bv_val,
504 li->idassert_passwd.bv_val,
507 rs->sr_err = ldap_sasl_interactive_bind_s( lc->ld, binddn.bv_val,
508 li->idassert_sasl_mech.bv_val, NULL, NULL,
509 li->idassert_sasl_flags, lutil_sasl_interact,
512 lutil_sasl_freedefs( defaults );
514 slap_sl_free( authzID.bv_val, op->o_tmpmemctx );
517 rs->sr_err = slap_map_api2result( rs );
518 if ( rs->sr_err != LDAP_SUCCESS ) {
520 send_ldap_result( op, rs );
526 #endif /* HAVE_CYRUS_SASL */
529 switch ( li->idassert_authmethod ) {
530 case LDAP_AUTH_SIMPLE:
531 rs->sr_err = ldap_sasl_bind(lc->ld,
532 binddn.bv_val, LDAP_SASL_SIMPLE,
533 &bindcred, NULL, NULL, &msgid);
543 rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED;
544 send_ldap_result( op, rs );
549 #endif /* LDAP_BACK_PROXY_AUTHZ */
551 rs->sr_err = ldap_sasl_bind(lc->ld, lc->bound_dn.bv_val,
552 LDAP_SASL_SIMPLE, &lc->cred, NULL, NULL, &msgid);
555 rc = ldap_back_op_result( lc, op, rs, msgid, 0 );
556 if (rc == LDAP_SUCCESS) {
563 ldap_pvt_thread_mutex_unlock( &lc->lc_mutex );
570 * This is a callback used for chasing referrals using the same
571 * credentials as the original user on this session.
574 ldap_back_rebind( LDAP *ld, LDAP_CONST char *url, ber_tag_t request,
575 ber_int_t msgid, void *params )
577 struct ldapconn *lc = params;
579 return ldap_bind_s( ld, lc->bound_dn.bv_val, lc->cred.bv_val, LDAP_AUTH_SIMPLE );
582 #if 0 /* deprecated in favour of slap_map_api2result() */
583 /* Map API errors to protocol errors... */
585 ldap_back_map_result( SlapReply *rs )
589 case LDAP_SERVER_DOWN:
590 return LDAP_UNAVAILABLE;
591 case LDAP_LOCAL_ERROR:
593 case LDAP_ENCODING_ERROR:
594 case LDAP_DECODING_ERROR:
595 return LDAP_PROTOCOL_ERROR;
597 return LDAP_UNAVAILABLE;
598 case LDAP_AUTH_UNKNOWN:
599 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
600 case LDAP_FILTER_ERROR:
601 rs->sr_text = "Filter error";
603 case LDAP_USER_CANCELLED:
604 rs->sr_text = "User cancelled";
606 case LDAP_PARAM_ERROR:
607 return LDAP_PROTOCOL_ERROR;
610 case LDAP_CONNECT_ERROR:
611 return LDAP_UNAVAILABLE;
612 case LDAP_NOT_SUPPORTED:
613 return LDAP_UNWILLING_TO_PERFORM;
614 case LDAP_CONTROL_NOT_FOUND:
615 return LDAP_PROTOCOL_ERROR;
616 case LDAP_NO_RESULTS_RETURNED:
617 return LDAP_NO_SUCH_OBJECT;
618 case LDAP_MORE_RESULTS_TO_RETURN:
619 rs->sr_text = "More results to return";
621 case LDAP_CLIENT_LOOP:
622 case LDAP_REFERRAL_LIMIT_EXCEEDED:
623 return LDAP_LOOP_DETECT;
625 if ( LDAP_API_ERROR(rs->sr_err) )
633 ldap_back_op_result(struct ldapconn *lc, Operation *op, SlapReply *rs,
634 ber_int_t msgid, int sendok)
636 struct ldapinfo *li = (struct ldapinfo *)op->o_bd->be_private;
638 LDAPMessage *res = NULL;
641 #define ERR_OK(err) ((err) == LDAP_SUCCESS || (err) == LDAP_COMPARE_FALSE || (err) == LDAP_COMPARE_TRUE)
644 rs->sr_matched = NULL;
646 /* if the error recorded in the reply corresponds
647 * to a successful state, get the error from the
648 * remote server response */
649 if ( ERR_OK( rs->sr_err ) ) {
650 /* if result parsing fails, note the failure reason */
651 if ( ldap_result( lc->ld, msgid, 1, NULL, &res ) == -1 ) {
652 ldap_get_option( lc->ld, LDAP_OPT_ERROR_NUMBER,
655 /* otherwise get the result; if it is not
656 * LDAP_SUCCESS, record it in the reply
657 * structure (this includes
658 * LDAP_COMPARE_{TRUE|FALSE}) */
660 int rc = ldap_parse_result( lc->ld, res, &rs->sr_err,
661 &match, &text, NULL, NULL, 1 );
663 if ( rc != LDAP_SUCCESS ) rs->sr_err = rc;
667 /* if the error in the reply structure is not
668 * LDAP_SUCCESS, try to map it from client
670 if ( !ERR_OK( rs->sr_err ) ) {
671 rs->sr_err = slap_map_api2result( rs );
673 /* internal ops ( op->o_conn == NULL )
674 * must not reply to client */
675 if ( op->o_conn && !op->o_do_not_cache && match ) {
676 struct berval dn, mdn;
679 dc.rwmap = &li->rwmap;
680 #ifdef ENABLE_REWRITE
681 dc.conn = op->o_conn;
683 dc.ctx = "matchedDN";
688 ber_str2bv(match, 0, 0, &dn);
689 ldap_back_dn_massage(&dc, &dn, &mdn);
691 /* record the (massaged) matched
692 * DN into the reply structure */
693 rs->sr_matched = mdn.bv_val;
697 if ( op->o_conn && ( sendok || rs->sr_err != LDAP_SUCCESS ) ) {
698 send_ldap_result( op, rs );
701 if ( rs->sr_matched != match ) {
702 free( (char *)rs->sr_matched );
704 rs->sr_matched = NULL;
705 ldap_memfree( match );
708 ldap_memfree( text );
711 return( ERR_OK( rs->sr_err ) ? 0 : -1 );
714 /* return true if bound, false if failed */
716 ldap_back_retry( struct ldapconn *lc, Operation *op, SlapReply *rs )
718 struct ldapinfo *li = (struct ldapinfo *)op->o_bd->be_private;
719 int vers = op->o_protocol;
722 ldap_pvt_thread_mutex_lock( &lc->lc_mutex );
723 ldap_unbind( lc->ld );
725 rs->sr_err = ldap_initialize(&ld, li->url);
727 if (rs->sr_err != LDAP_SUCCESS) {
728 rs->sr_err = slap_map_api2result( rs );
729 if (rs->sr_text == NULL) {
730 rs->sr_text = "ldap_initialize() failed";
732 if (op->o_conn) send_ldap_result( op, rs );
736 /* Set LDAP version. This will always succeed: If the client
737 * bound with a particular version, then so can we.
739 ldap_set_option(ld, LDAP_OPT_PROTOCOL_VERSION, (const void *)&vers);
740 /* FIXME: configurable? */
741 ldap_set_option(ld, LDAP_OPT_REFERRALS, LDAP_OPT_ON);
743 ldap_pvt_thread_mutex_unlock( &lc->lc_mutex );
744 return ldap_back_dobind( lc, op, rs );
747 #ifdef LDAP_BACK_PROXY_AUTHZ
749 * ldap_back_proxy_authz_ctrl() prepends a proxyAuthz control
750 * to existing server-side controls if required; if not,
751 * the existing server-side controls are placed in *pctrls.
752 * The caller, after using the controls in client API
753 * operations, if ( *pctrls != op->o_ctrls ), should
754 * free( (*pctrls)[ 0 ] ) and free( *pctrls ).
755 * The function returns success if the control could
756 * be added if required, or if it did nothing; in the future,
757 * it might return some error if it failed.
759 * if no bind took place yet, but the connection is bound
760 * and the "proxyauthzdn" is set, then bind as "proxyauthzdn"
761 * and explicitly add proxyAuthz the control to every operation
762 * with the dn bound to the connection as control value.
764 * If no server-side controls are defined for the operation,
765 * simply add the proxyAuthz control; otherwise, if the
766 * proxyAuthz control is not already set, add it as
767 * the first one (FIXME: is controls order significant
771 ldap_back_proxy_authz_ctrl(
775 LDAPControl ***pctrls )
777 struct ldapinfo *li = (struct ldapinfo *) op->o_bd->be_private;
778 LDAPControl **ctrls = NULL;
781 struct berval assertedID;
785 if ( ( BER_BVISNULL( &li->idassert_authcID ) || BER_BVISEMPTY( &li->idassert_authcID ) )
786 && ( BER_BVISNULL( &li->idassert_authcDN ) || BER_BVISEMPTY( &li->idassert_authcDN ) ) ) {
794 if ( li->idassert_mode == LDAP_BACK_IDASSERT_LEGACY ) {
795 if ( op->o_proxy_authz ) {
797 * FIXME: we do not want to perform proxyAuthz
798 * on behalf of the client, because this would
799 * be performed with "proxyauthzdn" privileges.
801 * This might actually be too strict, since
802 * the "proxyauthzdn" authzTo, and each entry's
803 * authzFrom attributes may be crafted
804 * to avoid unwanted proxyAuthz to take place.
807 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
808 rs->sr_text = "proxyAuthz not allowed within namingContext";
813 if ( !BER_BVISNULL( &lc->bound_dn ) ) {
817 if ( BER_BVISNULL( &op->o_conn->c_dn ) ) {
821 if ( BER_BVISNULL( &li->idassert_authcDN ) ) {
825 } else if ( li->idassert_authmethod == LDAP_AUTH_SASL ) {
826 if ( ( li->idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ )
827 /* && ( !BER_BVISNULL( &op->o_conn->c_dn ) || lc->bound ) */ )
829 /* already asserted in SASL via native authz */
830 /* NOTE: the test on lc->bound is used to trap
831 * native authorization of anonymous users,
832 * since in that case op->o_conn->c_dn is NULL */
836 } else if ( li->idassert_authz ) {
838 struct berval authcDN = BER_BVISNULL( &op->o_conn->c_dn ) ? slap_empty_bv : op->o_conn->c_dn;
841 rc = slap_sasl_matches( op, li->idassert_authz,
842 &authcDN, & authcDN );
843 if ( rc != LDAP_SUCCESS ) {
844 /* op->o_conn->c_dn is not authorized
850 if ( op->o_proxy_authz ) {
853 * 1) ignore the already set proxyAuthz control
854 * 2) leave it in place, and don't set ours
856 * 4) reject the operation
858 * option (4) is very drastic
859 * option (3) will make the remote server reject
860 * the operation, thus being equivalent to (4)
861 * option (2) will likely break the idassert
862 * assumptions, so we cannot accept it;
863 * option (1) means that we are contradicting
864 * the client's reques.
866 * I think (4) is the only correct choice.
868 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
869 rs->sr_text = "proxyAuthz not allowed within namingContext";
872 if ( op->o_do_not_cache && op->o_is_auth_check ) {
873 mode = LDAP_BACK_IDASSERT_NOASSERT;
876 mode = li->idassert_mode;
880 case LDAP_BACK_IDASSERT_LEGACY:
881 case LDAP_BACK_IDASSERT_SELF:
882 /* original behavior:
883 * assert the client's identity */
884 assertedID = BER_BVISNULL( &op->o_conn->c_dn ) ? slap_empty_bv : op->o_conn->c_dn;
887 case LDAP_BACK_IDASSERT_ANONYMOUS:
888 /* assert "anonymous" */
889 assertedID = slap_empty_bv;
892 case LDAP_BACK_IDASSERT_NOASSERT:
893 /* don't assert; bind as proxyauthzdn */
896 case LDAP_BACK_IDASSERT_OTHERID:
897 case LDAP_BACK_IDASSERT_OTHERDN:
898 /* assert idassert DN */
899 assertedID = li->idassert_authzID;
906 if ( BER_BVISNULL( &assertedID ) ) {
907 assertedID = slap_empty_bv;
910 ctrls = ch_malloc( sizeof( LDAPControl * ) * (i + 2) );
911 ctrls[ 0 ] = ch_malloc( sizeof( LDAPControl ) );
913 ctrls[ 0 ]->ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
914 ctrls[ 0 ]->ldctl_iscritical = 1;
916 switch ( li->idassert_mode ) {
917 /* already in u:ID or dn:DN form */
918 case LDAP_BACK_IDASSERT_OTHERID:
919 case LDAP_BACK_IDASSERT_OTHERDN:
920 ber_dupbv( &ctrls[ 0 ]->ldctl_value, &assertedID );
923 /* needs the dn: prefix */
925 ctrls[ 0 ]->ldctl_value.bv_len = assertedID.bv_len + STRLENOF( "dn:" );
926 ctrls[ 0 ]->ldctl_value.bv_val = ch_malloc( ctrls[ 0 ]->ldctl_value.bv_len + 1 );
927 AC_MEMCPY( ctrls[ 0 ]->ldctl_value.bv_val, "dn:", STRLENOF( "dn:" ) );
928 AC_MEMCPY( ctrls[ 0 ]->ldctl_value.bv_val + STRLENOF( "dn:" ),
929 assertedID.bv_val, assertedID.bv_len + 1 );
934 for ( i = 0; op->o_ctrls[ i ]; i++ ) {
935 ctrls[ i + 1 ] = op->o_ctrls[ i ];
938 ctrls[ i + 1 ] = NULL;
941 if ( ctrls == NULL ) {
949 #endif /* LDAP_BACK_PROXY_AUTHZ */