1 /* backend.c - routines for dealing with back-end databases */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2008 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
17 * All rights reserved.
19 * Redistribution and use in source and binary forms are permitted
20 * provided that this notice is preserved and that due credit is given
21 * to the University of Michigan at Ann Arbor. The name of the University
22 * may not be used to endorse or promote products derived from this
23 * software without specific prior written permission. This software
24 * is provided ``as is'' without express or implied warranty.
32 #include <ac/string.h>
33 #include <ac/socket.h>
42 * If a module is configured as dynamic, its header should not
43 * get included into slapd. While this is a general rule and does
44 * not have much of an effect in UNIX, this rule should be adhered
45 * to for Windows, where dynamic object code should not be implicitly
46 * imported into slapd without appropriate __declspec(dllimport) directives.
50 slap_bi_head backendInfo = LDAP_STAILQ_HEAD_INITIALIZER(backendInfo);
53 slap_be_head backendDB = LDAP_STAILQ_HEAD_INITIALIZER(backendDB);
56 backend_init_controls( BackendInfo *bi )
58 if ( bi->bi_controls ) {
61 for ( i = 0; bi->bi_controls[ i ]; i++ ) {
64 if ( slap_find_control_id( bi->bi_controls[ i ], &cid )
65 == LDAP_CONTROL_NOT_FOUND )
67 if ( !( slapMode & SLAP_TOOL_MODE ) ) {
74 bi->bi_ctrls[ cid ] = 1;
81 int backend_init(void)
86 if((nBackendInfo != 0) || !LDAP_STAILQ_EMPTY(&backendInfo)) {
87 /* already initialized */
88 Debug( LDAP_DEBUG_ANY,
89 "backend_init: already initialized\n", 0, 0, 0 );
93 for( bi=slap_binfo; bi->bi_type != NULL; bi++,nBackendInfo++ ) {
94 assert( bi->bi_init != 0 );
96 rc = bi->bi_init( bi );
99 Debug( LDAP_DEBUG_ANY,
100 "backend_init: initialized for type \"%s\"\n",
102 /* destroy those we've already inited */
107 if ( slap_binfo[nBackendInfo].bi_destroy ) {
108 slap_binfo[nBackendInfo].bi_destroy(
109 &slap_binfo[nBackendInfo] );
115 LDAP_STAILQ_INSERT_TAIL(&backendInfo, bi, bi_next);
118 if ( nBackendInfo > 0) {
126 Debug( LDAP_DEBUG_ANY,
127 "backend_init: failed\n",
131 #endif /* SLAPD_MODULES */
134 int backend_add(BackendInfo *aBackendInfo)
138 if ( aBackendInfo->bi_init == NULL ) {
139 Debug( LDAP_DEBUG_ANY, "backend_add: "
140 "backend type \"%s\" does not have the (mandatory)init function\n",
141 aBackendInfo->bi_type, 0, 0 );
145 rc = aBackendInfo->bi_init(aBackendInfo);
147 Debug( LDAP_DEBUG_ANY,
148 "backend_add: initialization for type \"%s\" failed\n",
149 aBackendInfo->bi_type, 0, 0 );
153 (void)backend_init_controls( aBackendInfo );
155 /* now add the backend type to the Backend Info List */
156 LDAP_STAILQ_INSERT_TAIL( &backendInfo, aBackendInfo, bi_next );
162 backend_set_controls( BackendDB *be )
164 BackendInfo *bi = be->bd_info;
166 /* back-relay takes care of itself; so may do other */
167 if ( overlay_is_over( be ) ) {
168 bi = ((slap_overinfo *)be->bd_info->bi_private)->oi_orig;
171 if ( bi->bi_controls ) {
172 if ( be->be_ctrls[ SLAP_MAX_CIDS ] == 0 ) {
173 AC_MEMCPY( be->be_ctrls, bi->bi_ctrls,
174 sizeof( be->be_ctrls ) );
175 be->be_ctrls[ SLAP_MAX_CIDS ] = 1;
180 for ( i = 0; i < SLAP_MAX_CIDS; i++ ) {
181 if ( bi->bi_ctrls[ i ] ) {
182 be->be_ctrls[ i ] = bi->bi_ctrls[ i ];
192 /* startup a specific backend database */
193 int backend_startup_one(Backend *be, ConfigReply *cr)
197 assert( be != NULL );
199 be->be_pending_csn_list = (struct be_pcl *)
200 ch_calloc( 1, sizeof( struct be_pcl ) );
202 LDAP_TAILQ_INIT( be->be_pending_csn_list );
204 Debug( LDAP_DEBUG_TRACE,
205 "backend_startup_one: starting \"%s\"\n",
206 be->be_suffix ? be->be_suffix[0].bv_val : "(unknown)",
209 /* set database controls */
210 (void)backend_set_controls( be );
213 if ( !BER_BVISEMPTY( &be->be_rootndn )
214 && select_backend( &be->be_rootndn, 0 ) == be
215 && BER_BVISNULL( &be->be_rootpw ) )
217 /* warning: if rootdn entry is created,
218 * it can take rootdn privileges;
219 * set empty rootpw to prevent */
223 if ( be->bd_info->bi_db_open ) {
224 rc = be->bd_info->bi_db_open( be, cr );
226 (void)backend_set_controls( be );
229 Debug( LDAP_DEBUG_ANY,
230 "backend_startup_one: bi_db_open failed! (%d)\n",
238 int backend_startup(Backend *be)
243 ConfigReply cr={0, ""};
245 if( ! ( nBackendDB > 0 ) ) {
247 Debug( LDAP_DEBUG_ANY,
248 "backend_startup: %d databases to startup.\n",
254 if ( be->bd_info->bi_open ) {
255 rc = be->bd_info->bi_open( be->bd_info );
257 Debug( LDAP_DEBUG_ANY,
258 "backend_startup: bi_open failed!\n",
265 return backend_startup_one( be, &cr );
268 /* open frontend, if required */
269 if ( frontendDB->bd_info->bi_db_open ) {
270 rc = frontendDB->bd_info->bi_db_open( frontendDB, &cr );
272 Debug( LDAP_DEBUG_ANY,
273 "backend_startup: bi_db_open(frontend) failed! (%d)\n",
279 /* open each backend type */
281 LDAP_STAILQ_FOREACH(bi, &backendInfo, bi_next) {
283 if( bi->bi_nDB == 0) {
284 /* no database of this type, don't open */
289 rc = bi->bi_open( bi );
291 Debug( LDAP_DEBUG_ANY,
292 "backend_startup: bi_open %d (%s) failed!\n",
298 (void)backend_init_controls( bi );
301 /* open each backend database */
303 LDAP_STAILQ_FOREACH(be, &backendDB, be_next) {
305 if ( be->be_suffix == NULL ) {
306 Debug( LDAP_DEBUG_ANY,
307 "backend_startup: warning, database %d (%s) "
309 i, be->bd_info->bi_type, 0 );
312 rc = backend_startup_one( be, &cr );
320 int backend_num( Backend *be )
325 if( be == NULL ) return -1;
327 LDAP_STAILQ_FOREACH( b2, &backendDB, be_next ) {
328 if( be == b2 ) return i;
334 int backend_shutdown( Backend *be )
340 /* shutdown a specific backend database */
342 if ( be->bd_info->bi_nDB == 0 ) {
343 /* no database of this type, we never opened it */
347 if ( be->bd_info->bi_db_close ) {
348 rc = be->bd_info->bi_db_close( be, NULL );
352 if( be->bd_info->bi_close ) {
353 rc = be->bd_info->bi_close( be->bd_info );
360 /* close each backend database */
361 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
362 if ( be->bd_info->bi_db_close ) {
363 be->bd_info->bi_db_close( be, NULL );
367 Debug( LDAP_DEBUG_ANY,
368 "backend_close: bi_db_close %s failed!\n",
373 /* close each backend type */
374 LDAP_STAILQ_FOREACH( bi, &backendInfo, bi_next ) {
375 if( bi->bi_nDB == 0 ) {
376 /* no database of this type */
385 /* close frontend, if required */
386 if ( frontendDB->bd_info->bi_db_close ) {
387 rc = frontendDB->bd_info->bi_db_close ( frontendDB, NULL );
389 Debug( LDAP_DEBUG_ANY,
390 "backend_startup: bi_db_close(frontend) failed! (%d)\n",
399 * This function is supposed to be the exact counterpart
400 * of backend_startup_one(), although this one calls bi_db_destroy()
401 * while backend_startup_one() calls bi_db_open().
403 * Make sure backend_stopdown_one() destroys resources allocated
404 * by backend_startup_one(); only call backend_destroy_one() when
405 * all stuff in a BackendDB needs to be destroyed
408 backend_stopdown_one( BackendDB *bd )
410 if ( bd->be_pending_csn_list ) {
411 struct slap_csn_entry *csne;
412 csne = LDAP_TAILQ_FIRST( bd->be_pending_csn_list );
414 struct slap_csn_entry *tmp_csne = csne;
416 LDAP_TAILQ_REMOVE( bd->be_pending_csn_list, csne, ce_csn_link );
417 ch_free( csne->ce_csn.bv_val );
418 csne = LDAP_TAILQ_NEXT( csne, ce_csn_link );
421 ch_free( bd->be_pending_csn_list );
424 if ( bd->bd_info->bi_db_destroy ) {
425 bd->bd_info->bi_db_destroy( bd, NULL );
429 void backend_destroy_one( BackendDB *bd, int dynamic )
432 LDAP_STAILQ_REMOVE(&backendDB, bd, BackendDB, be_next );
435 if ( bd->be_syncinfo ) {
436 syncinfo_free( bd->be_syncinfo, 1 );
439 backend_stopdown_one( bd );
441 ber_bvarray_free( bd->be_suffix );
442 ber_bvarray_free( bd->be_nsuffix );
443 if ( !BER_BVISNULL( &bd->be_rootdn ) ) {
444 free( bd->be_rootdn.bv_val );
446 if ( !BER_BVISNULL( &bd->be_rootndn ) ) {
447 free( bd->be_rootndn.bv_val );
449 if ( !BER_BVISNULL( &bd->be_rootpw ) ) {
450 free( bd->be_rootpw.bv_val );
452 acl_destroy( bd->be_acl );
453 limits_destroy( bd->be_limits );
454 if ( !BER_BVISNULL( &bd->be_update_ndn ) ) {
455 ch_free( bd->be_update_ndn.bv_val );
457 if ( bd->be_update_refs ) {
458 ber_bvarray_free( bd->be_update_refs );
466 int backend_destroy(void)
471 /* destroy each backend database */
472 while (( bd = LDAP_STAILQ_FIRST(&backendDB))) {
473 backend_destroy_one( bd, 1 );
476 /* destroy each backend type */
477 LDAP_STAILQ_FOREACH( bi, &backendInfo, bi_next ) {
478 if( bi->bi_destroy ) {
479 bi->bi_destroy( bi );
484 LDAP_STAILQ_INIT(&backendInfo);
486 /* destroy frontend database */
489 if ( bd->bd_info->bi_db_destroy ) {
490 bd->bd_info->bi_db_destroy( bd, NULL );
492 ber_bvarray_free( bd->be_suffix );
493 ber_bvarray_free( bd->be_nsuffix );
494 if ( !BER_BVISNULL( &bd->be_rootdn ) ) {
495 free( bd->be_rootdn.bv_val );
497 if ( !BER_BVISNULL( &bd->be_rootndn ) ) {
498 free( bd->be_rootndn.bv_val );
500 if ( !BER_BVISNULL( &bd->be_rootpw ) ) {
501 free( bd->be_rootpw.bv_val );
503 acl_destroy( bd->be_acl );
510 BackendInfo* backend_info(const char *type)
514 /* search for the backend type */
515 LDAP_STAILQ_FOREACH(bi,&backendInfo,bi_next) {
516 if( strcasecmp(bi->bi_type, type) == 0 ) {
530 /* If idx < 0, just add to end of list */
532 LDAP_STAILQ_INSERT_TAIL(&backendDB, be, be_next);
533 } else if ( idx == 0 ) {
534 LDAP_STAILQ_INSERT_HEAD(&backendDB, be, be_next);
539 b2 = LDAP_STAILQ_FIRST(&backendDB);
541 for (i=0; i<idx; i++) {
542 b2 = LDAP_STAILQ_NEXT(b2, be_next);
544 LDAP_STAILQ_INSERT_AFTER(&backendDB, b2, be, be_next);
554 LDAP_STAILQ_REMOVE(&backendDB, be, BackendDB, be_next);
555 backend_db_insert(be, idx);
565 BackendInfo *bi = backend_info(type);
570 fprintf( stderr, "Unrecognized database type (%s)\n", type );
574 /* If be is provided, treat it as private. Otherwise allocate
575 * one and add it to the global list.
578 be = ch_calloc( 1, sizeof(Backend) );
580 if ( idx >= nbackends )
583 backend_db_insert( be, idx );
589 be->be_def_limit = frontendDB->be_def_limit;
590 be->be_dfltaccess = frontendDB->be_dfltaccess;
592 be->be_restrictops = frontendDB->be_restrictops;
593 be->be_requires = frontendDB->be_requires;
594 be->be_ssf_set = frontendDB->be_ssf_set;
596 ldap_pvt_thread_mutex_init( &be->be_pcl_mutex );
598 /* assign a default depth limit for alias deref */
599 be->be_max_deref_depth = SLAPD_DEFAULT_MAXDEREFDEPTH;
601 if ( bi->bi_db_init ) {
602 rc = bi->bi_db_init( be, cr );
606 fprintf( stderr, "database init failed (%s)\n", type );
607 /* If we created and linked this be, remove it and free it */
609 LDAP_STAILQ_REMOVE(&backendDB, be, BackendDB, be_next);
625 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
626 if ( be->bd_info->bi_db_close ) {
627 be->bd_info->bi_db_close( be, NULL );
631 if ( frontendDB->bd_info->bi_db_close ) {
632 frontendDB->bd_info->bi_db_close( frontendDB, NULL );
643 ber_len_t len, dnlen = dn->bv_len;
646 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
647 if ( be->be_nsuffix == NULL || SLAP_DBHIDDEN( be )) {
651 for ( j = 0; !BER_BVISNULL( &be->be_nsuffix[j] ); j++ )
653 if ( ( SLAP_GLUE_SUBORDINATE( be ) ) && noSubs )
658 len = be->be_nsuffix[j].bv_len;
661 /* suffix is longer than DN */
666 * input DN is normalized, so the separator check
667 * need not look at escaping
669 if ( len && len < dnlen &&
670 !DN_SEPARATOR( dn->bv_val[(dnlen-len)-1] ))
675 if ( strcmp( be->be_nsuffix[j].bv_val,
676 &dn->bv_val[dnlen-len] ) == 0 )
689 struct berval *bvsuffix )
693 if ( be->be_nsuffix == NULL ) {
697 for ( i = 0; !BER_BVISNULL( &be->be_nsuffix[i] ); i++ ) {
698 if ( bvmatch( &be->be_nsuffix[i], bvsuffix ) ) {
709 struct berval *bvsubordinate )
713 if ( be->be_nsuffix == NULL ) {
717 for ( i = 0; !BER_BVISNULL( &be->be_nsuffix[i] ); i++ ) {
718 if ( dnIsSuffix( bvsubordinate, &be->be_nsuffix[i] ) ) {
727 be_isroot_dn( Backend *be, struct berval *ndn )
729 if ( BER_BVISEMPTY( ndn ) || BER_BVISEMPTY( &be->be_rootndn ) ) {
733 return dn_match( &be->be_rootndn, ndn );
737 be_slurp_update( Operation *op )
739 return ( SLAP_SLURP_SHADOW( op->o_bd ) &&
740 be_isupdate_dn( op->o_bd, &op->o_ndn ) );
744 be_shadow_update( Operation *op )
746 /* This assumes that all internal ops (connid == -1) on a syncrepl
747 * database are syncrepl operations.
749 return (( SLAP_SYNC_SHADOW( op->o_bd ) && op->o_connid == -1 ) ||
750 ( SLAP_SHADOW( op->o_bd ) && be_isupdate_dn( op->o_bd, &op->o_ndn ) ) );
754 be_isupdate_dn( Backend *be, struct berval *ndn )
756 if ( BER_BVISEMPTY( ndn ) || BER_BVISEMPTY( &be->be_update_ndn ) ) {
760 return dn_match( &be->be_update_ndn, ndn );
764 be_root_dn( Backend *be )
766 return &be->be_rootdn;
770 be_isroot( Operation *op )
772 return be_isroot_dn( op->o_bd, &op->o_ndn );
776 be_isroot_pw( Operation *op )
778 return be_rootdn_bind( op, NULL ) == LDAP_SUCCESS;
782 * checks if binding as rootdn
785 * SLAP_CB_CONTINUE if not the rootdn, or if rootpw is null
786 * LDAP_SUCCESS if rootdn & rootpw
787 * LDAP_INVALID_CREDENTIALS if rootdn & !rootpw
790 * if LDAP_SUCCESS, op->orb_edn is set
791 * if LDAP_INVALID_CREDENTIALS, response is sent to client
794 be_rootdn_bind( Operation *op, SlapReply *rs )
798 void *old_authctx = NULL;
801 assert( op->o_tag == LDAP_REQ_BIND );
802 assert( op->orb_method == LDAP_AUTH_SIMPLE );
804 if ( !be_isroot_dn( op->o_bd, &op->o_req_ndn ) ) {
805 return SLAP_CB_CONTINUE;
808 if ( BER_BVISNULL( &op->o_bd->be_rootpw ) ) {
809 /* give the database a chance */
810 return SLAP_CB_CONTINUE;
813 if ( BER_BVISEMPTY( &op->o_bd->be_rootpw ) ) {
814 /* rootdn bind explicitly disallowed */
815 rc = LDAP_INVALID_CREDENTIALS;
824 ldap_pvt_thread_pool_setkey( op->o_threadctx, (void *)slap_sasl_bind,
825 op->o_conn->c_sasl_authctx, 0, &old_authctx, NULL );
828 rc = lutil_passwd( &op->o_bd->be_rootpw, &op->orb_cred, NULL, NULL );
831 ldap_pvt_thread_pool_setkey( op->o_threadctx, (void *)slap_sasl_bind,
832 old_authctx, 0, NULL, NULL );
835 rc = ( rc == 0 ? LDAP_SUCCESS : LDAP_INVALID_CREDENTIALS );
840 Debug( LDAP_DEBUG_TRACE, "%s: rootdn=\"%s\" bind%s\n",
841 op->o_log_prefix, op->o_bd->be_rootdn.bv_val,
842 rc == LDAP_SUCCESS ? " succeeded" : " failed" );
844 if ( rc == LDAP_SUCCESS ) {
845 /* Set to the pretty rootdn */
846 ber_dupbv( &op->orb_edn, &op->o_bd->be_rootdn );
849 send_ldap_result( op, rs );
862 if ( op->o_bd->be_release ) {
863 /* free and release entry from backend */
864 return op->o_bd->be_release( op, e, rw );
873 backend_unbind( Operation *op, SlapReply *rs )
877 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
878 if ( be->be_unbind ) {
880 be->be_unbind( op, rs );
888 backend_connection_init(
893 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
894 if ( be->be_connection_init ) {
895 be->be_connection_init( be, conn );
903 backend_connection_destroy(
908 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
909 if ( be->be_connection_destroy ) {
910 be->be_connection_destroy( be, conn);
918 backend_check_controls(
922 LDAPControl **ctrls = op->o_ctrls;
923 rs->sr_err = LDAP_SUCCESS;
926 for( ; *ctrls != NULL ; ctrls++ ) {
929 switch ( slap_global_control( op, (*ctrls)->ldctl_oid, &cid ) ) {
930 case LDAP_CONTROL_NOT_FOUND:
931 /* unrecognized control */
932 if ( (*ctrls)->ldctl_iscritical ) {
933 /* should not be reachable */
934 Debug( LDAP_DEBUG_ANY, "backend_check_controls: "
935 "unrecognized critical control: %s\n",
936 (*ctrls)->ldctl_oid, 0, 0 );
939 Debug( LDAP_DEBUG_TRACE, "backend_check_controls: "
940 "unrecognized non-critical control: %s\n",
941 (*ctrls)->ldctl_oid, 0, 0 );
945 case LDAP_COMPARE_FALSE:
946 if ( !op->o_bd->be_ctrls[cid] && (*ctrls)->ldctl_iscritical ) {
947 #ifdef SLAP_CONTROL_X_WHATFAILED
948 if ( get_whatFailed( op ) ) {
950 oids[ 0 ] = (*ctrls)->ldctl_oid;
952 slap_ctrl_whatFailed_add( op, rs, oids );
955 /* RFC 4511 allows unavailableCriticalExtension to be
956 * returned when the server is unwilling to perform
957 * an operation extended by a recognized critical
960 rs->sr_text = "critical control unavailable in context";
961 rs->sr_err = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
966 case LDAP_COMPARE_TRUE:
971 Debug( LDAP_DEBUG_ANY,
972 "backend_check_controls: unable to check control: %s\n",
973 (*ctrls)->ldctl_oid, 0, 0 );
976 rs->sr_text = "unable to check control";
977 rs->sr_err = LDAP_OTHER;
983 #if 0 /* temporarily removed */
984 /* check should be generalized */
985 if( get_relax(op) && !be_isroot(op)) {
986 rs->sr_text = "requires manager authorization";
987 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
996 backend_check_restrictions(
999 struct berval *opdata )
1001 slap_mask_t restrictops;
1002 slap_mask_t requires;
1004 slap_mask_t exopflag = 0;
1005 slap_ssf_set_t *ssf;
1011 int rc = SLAP_CB_CONTINUE;
1013 if ( op->o_bd->be_chk_controls ) {
1014 rc = ( *op->o_bd->be_chk_controls )( op, rs );
1017 if ( rc == SLAP_CB_CONTINUE ) {
1018 rc = backend_check_controls( op, rs );
1021 if ( rc != LDAP_SUCCESS ) {
1025 restrictops = op->o_bd->be_restrictops;
1026 requires = op->o_bd->be_requires;
1027 ssf = &op->o_bd->be_ssf_set;
1030 restrictops = frontendDB->be_restrictops;
1031 requires = frontendDB->be_requires;
1032 ssf = &frontendDB->be_ssf_set;
1035 switch( op->o_tag ) {
1037 opflag = SLAP_RESTRICT_OP_ADD;
1041 opflag = SLAP_RESTRICT_OP_BIND;
1044 case LDAP_REQ_COMPARE:
1045 opflag = SLAP_RESTRICT_OP_COMPARE;
1047 case LDAP_REQ_DELETE:
1049 opflag = SLAP_RESTRICT_OP_DELETE;
1051 case LDAP_REQ_EXTENDED:
1052 opflag = SLAP_RESTRICT_OP_EXTENDED;
1055 /* treat unspecified as a modify */
1056 opflag = SLAP_RESTRICT_OP_MODIFY;
1061 if( bvmatch( opdata, &slap_EXOP_START_TLS ) ) {
1064 exopflag = SLAP_RESTRICT_EXOP_START_TLS;
1068 if( bvmatch( opdata, &slap_EXOP_WHOAMI ) ) {
1069 exopflag = SLAP_RESTRICT_EXOP_WHOAMI;
1073 if ( bvmatch( opdata, &slap_EXOP_CANCEL ) ) {
1074 exopflag = SLAP_RESTRICT_EXOP_CANCEL;
1078 if ( bvmatch( opdata, &slap_EXOP_MODIFY_PASSWD ) ) {
1079 exopflag = SLAP_RESTRICT_EXOP_MODIFY_PASSWD;
1084 /* treat everything else as a modify */
1085 opflag = SLAP_RESTRICT_OP_MODIFY;
1089 case LDAP_REQ_MODIFY:
1091 opflag = SLAP_RESTRICT_OP_MODIFY;
1093 case LDAP_REQ_RENAME:
1095 opflag = SLAP_RESTRICT_OP_RENAME;
1097 case LDAP_REQ_SEARCH:
1098 opflag = SLAP_RESTRICT_OP_SEARCH;
1100 case LDAP_REQ_UNBIND:
1105 rs->sr_text = "restrict operations internal error";
1106 rs->sr_err = LDAP_OTHER;
1111 /* these checks don't apply to StartTLS */
1113 rs->sr_err = LDAP_CONFIDENTIALITY_REQUIRED;
1114 if( op->o_transport_ssf < ssf->sss_transport ) {
1115 rs->sr_text = op->o_transport_ssf
1116 ? "stronger transport confidentiality required"
1117 : "transport confidentiality required";
1121 if( op->o_tls_ssf < ssf->sss_tls ) {
1122 rs->sr_text = op->o_tls_ssf
1123 ? "stronger TLS confidentiality required"
1124 : "TLS confidentiality required";
1129 if( op->o_tag == LDAP_REQ_BIND && opdata == NULL ) {
1130 /* simple bind specific check */
1131 if( op->o_ssf < ssf->sss_simple_bind ) {
1132 rs->sr_text = op->o_ssf
1133 ? "stronger confidentiality required"
1134 : "confidentiality required";
1139 if( op->o_tag != LDAP_REQ_BIND || opdata == NULL ) {
1140 /* these checks don't apply to SASL bind */
1142 if( op->o_sasl_ssf < ssf->sss_sasl ) {
1143 rs->sr_text = op->o_sasl_ssf
1144 ? "stronger SASL confidentiality required"
1145 : "SASL confidentiality required";
1149 if( op->o_ssf < ssf->sss_ssf ) {
1150 rs->sr_text = op->o_ssf
1151 ? "stronger confidentiality required"
1152 : "confidentiality required";
1158 if( op->o_transport_ssf < ssf->sss_update_transport ) {
1159 rs->sr_text = op->o_transport_ssf
1160 ? "stronger transport confidentiality required for update"
1161 : "transport confidentiality required for update";
1165 if( op->o_tls_ssf < ssf->sss_update_tls ) {
1166 rs->sr_text = op->o_tls_ssf
1167 ? "stronger TLS confidentiality required for update"
1168 : "TLS confidentiality required for update";
1172 if( op->o_sasl_ssf < ssf->sss_update_sasl ) {
1173 rs->sr_text = op->o_sasl_ssf
1174 ? "stronger SASL confidentiality required for update"
1175 : "SASL confidentiality required for update";
1179 if( op->o_ssf < ssf->sss_update_ssf ) {
1180 rs->sr_text = op->o_ssf
1181 ? "stronger confidentiality required for update"
1182 : "confidentiality required for update";
1186 if( !( global_allows & SLAP_ALLOW_UPDATE_ANON ) &&
1187 BER_BVISEMPTY( &op->o_ndn ) )
1189 rs->sr_text = "modifications require authentication";
1190 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1194 #ifdef SLAP_X_LISTENER_MOD
1195 if ( op->o_conn->c_listener &&
1196 ! ( op->o_conn->c_listener->sl_perms & ( !BER_BVISEMPTY( &op->o_ndn )
1197 ? (S_IWUSR|S_IWOTH) : S_IWOTH ) ) )
1199 /* no "w" mode means readonly */
1200 rs->sr_text = "modifications not allowed on this listener";
1201 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1204 #endif /* SLAP_X_LISTENER_MOD */
1209 /* these checks don't apply to Bind, StartTLS, or Unbind */
1211 if( requires & SLAP_REQUIRE_STRONG ) {
1212 /* should check mechanism */
1213 if( ( op->o_transport_ssf < ssf->sss_transport
1214 && op->o_authtype == LDAP_AUTH_SIMPLE )
1215 || BER_BVISEMPTY( &op->o_dn ) )
1217 rs->sr_text = "strong(er) authentication required";
1218 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1223 if( requires & SLAP_REQUIRE_SASL ) {
1224 if( op->o_authtype != LDAP_AUTH_SASL || BER_BVISEMPTY( &op->o_dn ) ) {
1225 rs->sr_text = "SASL authentication required";
1226 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1231 if( requires & SLAP_REQUIRE_AUTHC ) {
1232 if( BER_BVISEMPTY( &op->o_dn ) ) {
1233 rs->sr_text = "authentication required";
1234 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1239 if( requires & SLAP_REQUIRE_BIND ) {
1241 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1242 version = op->o_conn->c_protocol;
1243 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1246 /* no bind has occurred */
1247 rs->sr_text = "BIND required";
1248 rs->sr_err = LDAP_OPERATIONS_ERROR;
1253 if( requires & SLAP_REQUIRE_LDAP_V3 ) {
1254 if( op->o_protocol < LDAP_VERSION3 ) {
1255 /* no bind has occurred */
1256 rs->sr_text = "operation restricted to LDAPv3 clients";
1257 rs->sr_err = LDAP_OPERATIONS_ERROR;
1262 #ifdef SLAP_X_LISTENER_MOD
1263 if ( !starttls && BER_BVISEMPTY( &op->o_dn ) ) {
1264 if ( op->o_conn->c_listener &&
1265 !( op->o_conn->c_listener->sl_perms & S_IXOTH ))
1267 /* no "x" mode means bind required */
1268 rs->sr_text = "bind required on this listener";
1269 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1274 if ( !starttls && !updateop ) {
1275 if ( op->o_conn->c_listener &&
1276 !( op->o_conn->c_listener->sl_perms &
1277 ( !BER_BVISEMPTY( &op->o_dn )
1278 ? (S_IRUSR|S_IROTH) : S_IROTH )))
1280 /* no "r" mode means no read */
1281 rs->sr_text = "read not allowed on this listener";
1282 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1286 #endif /* SLAP_X_LISTENER_MOD */
1290 if( ( restrictops & opflag )
1291 || ( exopflag && ( restrictops & exopflag ) ) ) {
1292 if( ( restrictops & SLAP_RESTRICT_OP_MASK) == SLAP_RESTRICT_OP_READS ) {
1293 rs->sr_text = "read operations restricted";
1294 } else if ( restrictops & exopflag ) {
1295 rs->sr_text = "extended operation restricted";
1297 rs->sr_text = "operation restricted";
1299 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1303 rs->sr_err = LDAP_SUCCESS;
1307 int backend_check_referrals( Operation *op, SlapReply *rs )
1309 rs->sr_err = LDAP_SUCCESS;
1311 if( op->o_bd->be_chk_referrals ) {
1312 rs->sr_err = op->o_bd->be_chk_referrals( op, rs );
1314 if( rs->sr_err != LDAP_SUCCESS && rs->sr_err != LDAP_REFERRAL ) {
1315 send_ldap_result( op, rs );
1327 AttributeDescription *at,
1333 if ( op->o_bd == NULL ) {
1334 return LDAP_NO_SUCH_OBJECT;
1337 if ( op->o_bd->be_fetch ) {
1338 return op->o_bd->be_fetch( op, ndn, oc, at, rw, e );
1341 return LDAP_UNWILLING_TO_PERFORM;
1348 struct berval *gr_ndn,
1349 struct berval *op_ndn,
1350 ObjectClass *group_oc,
1351 AttributeDescription *group_at )
1354 void *o_priv = op->o_private, *e_priv = NULL;
1358 Backend *be = op->o_bd;
1361 LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
1362 if ( oex->oe_key == (void *)backend_group )
1366 if ( oex && ((OpExtraDB *)oex)->oe_db )
1367 op->o_bd = ((OpExtraDB *)oex)->oe_db;
1369 if ( !op->o_bd || !SLAP_DBHIDDEN( op->o_bd ))
1370 op->o_bd = select_backend( gr_ndn, 0 );
1372 for ( g = op->o_groups; g; g = g->ga_next ) {
1373 if ( g->ga_be != op->o_bd || g->ga_oc != group_oc ||
1374 g->ga_at != group_at || g->ga_len != gr_ndn->bv_len )
1378 if ( strcmp( g->ga_ndn, gr_ndn->bv_val ) == 0 ) {
1388 if ( target && dn_match( &target->e_nname, gr_ndn ) ) {
1393 op->o_private = NULL;
1394 rc = be_entry_get_rw( op, gr_ndn, group_oc, group_at, 0, &e );
1395 e_priv = op->o_private;
1396 op->o_private = o_priv;
1400 a = attr_find( e->e_attrs, group_at );
1402 /* If the attribute is a subtype of labeledURI,
1403 * treat this as a dynamic group ala groupOfURLs
1405 if ( is_at_subtype( group_at->ad_type,
1406 slap_schema.si_ad_labeledURI->ad_type ) )
1410 struct berval bv, nbase;
1413 void *user_priv = NULL;
1414 Backend *b2 = op->o_bd;
1416 if ( target && dn_match( &target->e_nname, op_ndn ) ) {
1420 rc = LDAP_COMPARE_FALSE;
1421 for ( i = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
1422 if ( ldap_url_parse( a->a_vals[i].bv_val, &ludp ) !=
1428 BER_BVZERO( &nbase );
1430 /* host, attrs and extensions parts must be empty */
1431 if ( ( ludp->lud_host && *ludp->lud_host )
1438 ber_str2bv( ludp->lud_dn, 0, 0, &bv );
1439 if ( dnNormalize( 0, NULL, NULL, &bv, &nbase,
1440 op->o_tmpmemctx ) != LDAP_SUCCESS )
1445 switch ( ludp->lud_scope ) {
1446 case LDAP_SCOPE_BASE:
1447 if ( !dn_match( &nbase, op_ndn ) ) {
1451 case LDAP_SCOPE_ONELEVEL:
1452 dnParent( op_ndn, &bv );
1453 if ( !dn_match( &nbase, &bv ) ) {
1457 case LDAP_SCOPE_SUBTREE:
1458 if ( !dnIsSuffix( op_ndn, &nbase ) ) {
1462 case LDAP_SCOPE_SUBORDINATE:
1463 if ( dn_match( &nbase, op_ndn ) ||
1464 !dnIsSuffix( op_ndn, &nbase ) )
1470 /* NOTE: this could be NULL
1471 * if no filter is provided,
1472 * or if filter parsing fails.
1473 * In the latter case,
1474 * we should give up. */
1475 if ( ludp->lud_filter != NULL && ludp->lud_filter != '\0') {
1476 filter = str2filter_x( op, ludp->lud_filter );
1477 if ( filter == NULL ) {
1483 /* only get user if required
1484 * and not available yet */
1485 if ( user == NULL ) {
1488 op->o_bd = select_backend( op_ndn, 0 );
1489 op->o_private = NULL;
1490 rc2 = be_entry_get_rw( op, op_ndn, NULL, NULL, 0, &user );
1491 user_priv = op->o_private;
1492 op->o_private = o_priv;
1500 if ( test_filter( NULL, user, filter ) ==
1505 filter_free_x( op, filter, 1 );
1508 ldap_free_urldesc( ludp );
1509 if ( !BER_BVISNULL( &nbase ) ) {
1510 op->o_tmpfree( nbase.bv_val, op->o_tmpmemctx );
1512 if ( rc != LDAP_COMPARE_FALSE ) {
1517 if ( user != NULL && user != target ) {
1518 op->o_private = user_priv;
1519 be_entry_release_r( op, user );
1520 op->o_private = o_priv;
1525 rc = attr_valfind( a,
1526 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1527 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1528 op_ndn, NULL, op->o_tmpmemctx );
1529 if ( rc == LDAP_NO_SUCH_ATTRIBUTE ) {
1530 rc = LDAP_COMPARE_FALSE;
1535 rc = LDAP_NO_SUCH_ATTRIBUTE;
1538 if ( e != target ) {
1539 op->o_private = e_priv;
1540 be_entry_release_r( op, e );
1541 op->o_private = o_priv;
1545 rc = LDAP_NO_SUCH_OBJECT;
1548 if ( op->o_tag != LDAP_REQ_BIND && !op->o_do_not_cache ) {
1549 g = op->o_tmpalloc( sizeof( GroupAssertion ) + gr_ndn->bv_len,
1551 g->ga_be = op->o_bd;
1552 g->ga_oc = group_oc;
1553 g->ga_at = group_at;
1555 g->ga_len = gr_ndn->bv_len;
1556 strcpy( g->ga_ndn, gr_ndn->bv_val );
1557 g->ga_next = op->o_groups;
1570 struct berval *gr_ndn,
1571 struct berval *op_ndn,
1572 ObjectClass *group_oc,
1573 AttributeDescription *group_at )
1579 if ( op->o_abandon ) {
1580 return SLAPD_ABANDON;
1583 oex.oe_db = op->o_bd;
1584 oex.oe.oe_key = (void *)backend_group;
1585 LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex.oe, oe_next);
1588 op->o_bd = frontendDB;
1589 rc = frontendDB->be_group( op, target, gr_ndn,
1590 op_ndn, group_oc, group_at );
1592 LDAP_SLIST_REMOVE(&op->o_extra, &oex.oe, OpExtra, oe_next);
1602 AttributeDescription *entry_at,
1604 slap_access_t access )
1607 void *o_priv = op->o_private, *e_priv = NULL;
1608 Attribute *a = NULL;
1609 int freeattr = 0, i, j, rc = LDAP_SUCCESS;
1610 AccessControlState acl_state = ACL_STATE_INIT;
1611 Backend *be = op->o_bd;
1614 LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
1615 if ( oex->oe_key == (void *)backend_attribute )
1619 if ( oex && ((OpExtraDB *)oex)->oe_db )
1620 op->o_bd = ((OpExtraDB *)oex)->oe_db;
1622 if ( !op->o_bd || !SLAP_DBHIDDEN( op->o_bd ))
1623 op->o_bd = select_backend( edn, 0 );
1625 if ( target && dn_match( &target->e_nname, edn ) ) {
1629 op->o_private = NULL;
1630 rc = be_entry_get_rw( op, edn, NULL, entry_at, 0, &e );
1631 e_priv = op->o_private;
1632 op->o_private = o_priv;
1636 if ( entry_at == slap_schema.si_ad_entry || entry_at == slap_schema.si_ad_children ) {
1637 assert( vals == NULL );
1640 if ( op->o_conn && access > ACL_NONE &&
1641 access_allowed( op, e, entry_at, NULL,
1642 access, &acl_state ) == 0 )
1644 rc = LDAP_INSUFFICIENT_ACCESS;
1649 a = attr_find( e->e_attrs, entry_at );
1651 SlapReply rs = { 0 };
1652 AttributeName anlist[ 2 ];
1654 anlist[ 0 ].an_name = entry_at->ad_cname;
1655 anlist[ 0 ].an_desc = entry_at;
1656 BER_BVZERO( &anlist[ 1 ].an_name );
1657 rs.sr_attrs = anlist;
1659 /* NOTE: backend_operational() is also called
1660 * when returning results, so it's supposed
1661 * to do no harm to entries */
1663 rc = backend_operational( op, &rs );
1666 if ( rc == LDAP_SUCCESS ) {
1667 if ( rs.sr_operational_attrs ) {
1669 a = rs.sr_operational_attrs;
1672 rc = LDAP_NO_SUCH_ATTRIBUTE;
1680 if ( op->o_conn && access > ACL_NONE &&
1681 access_allowed( op, e, entry_at, NULL,
1682 access, &acl_state ) == 0 )
1684 rc = LDAP_INSUFFICIENT_ACCESS;
1689 v = op->o_tmpalloc( sizeof(struct berval) * ( i + 1 ),
1691 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ )
1693 if ( op->o_conn && access > ACL_NONE &&
1694 access_allowed( op, e, entry_at,
1701 ber_dupbv_x( &v[j], &a->a_nvals[i],
1703 if ( !BER_BVISNULL( &v[j] ) ) {
1708 op->o_tmpfree( v, op->o_tmpmemctx );
1710 rc = LDAP_INSUFFICIENT_ACCESS;
1713 BER_BVZERO( &v[j] );
1718 freeit: if ( e != target ) {
1719 op->o_private = e_priv;
1720 be_entry_release_r( op, e );
1721 op->o_private = o_priv;
1737 AttributeDescription *entry_at,
1739 slap_access_t access )
1745 oex.oe_db = op->o_bd;
1746 oex.oe.oe_key = (void *)backend_attribute;
1747 LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex.oe, oe_next);
1750 op->o_bd = frontendDB;
1751 rc = frontendDB->be_attribute( op, target, edn,
1752 entry_at, vals, access );
1754 LDAP_SLIST_REMOVE(&op->o_extra, &oex.oe, OpExtra, oe_next);
1764 AttributeDescription *entry_at,
1765 struct berval *nval,
1766 slap_access_t access,
1770 void *o_priv = op->o_private, *e_priv = NULL;
1771 int rc = LDAP_INSUFFICIENT_ACCESS;
1772 Backend *be = op->o_bd;
1775 assert( op != NULL );
1776 assert( op->o_conn != NULL );
1777 assert( edn != NULL );
1778 assert( access > ACL_NONE );
1781 op->o_bd = select_backend( edn, 0 );
1784 if ( target && dn_match( &target->e_nname, edn ) ) {
1788 op->o_private = NULL;
1789 rc = be_entry_get_rw( op, edn, NULL, entry_at, 0, &e );
1790 e_priv = op->o_private;
1791 op->o_private = o_priv;
1795 Attribute *a = NULL;
1798 if ( entry_at == NULL ) {
1799 entry_at = slap_schema.si_ad_entry;
1802 if ( entry_at == slap_schema.si_ad_entry || entry_at == slap_schema.si_ad_children )
1804 if ( access_allowed_mask( op, e, entry_at,
1805 NULL, access, NULL, mask ) == 0 )
1807 rc = LDAP_INSUFFICIENT_ACCESS;
1814 a = attr_find( e->e_attrs, entry_at );
1816 SlapReply rs = { 0 };
1817 AttributeName anlist[ 2 ];
1819 anlist[ 0 ].an_name = entry_at->ad_cname;
1820 anlist[ 0 ].an_desc = entry_at;
1821 BER_BVZERO( &anlist[ 1 ].an_name );
1822 rs.sr_attrs = anlist;
1824 rs.sr_attr_flags = slap_attr_flags( rs.sr_attrs );
1826 /* NOTE: backend_operational() is also called
1827 * when returning results, so it's supposed
1828 * to do no harm to entries */
1830 rc = backend_operational( op, &rs );
1833 if ( rc == LDAP_SUCCESS ) {
1834 if ( rs.sr_operational_attrs ) {
1836 a = rs.sr_operational_attrs;
1839 rc = LDAP_NO_SUCH_OBJECT;
1845 if ( access_allowed_mask( op, e, entry_at,
1846 nval, access, NULL, mask ) == 0 )
1848 rc = LDAP_INSUFFICIENT_ACCESS;
1854 freeit: if ( e != target ) {
1855 op->o_private = e_priv;
1856 be_entry_release_r( op, e );
1857 op->o_private = o_priv;
1874 int rc = LDAP_SUCCESS;
1875 BackendDB *be_orig = op->o_bd;
1878 LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
1879 if ( oex->oe_key == (void *)backend_operational )
1883 for ( ap = &rs->sr_operational_attrs; *ap; ap = &(*ap)->a_next )
1884 /* just count them */ ;
1887 * If operational attributes (allegedly) are required,
1888 * and the backend supports specific operational attributes,
1889 * add them to the attribute list
1891 if ( !( rs->sr_flags & REP_NO_ENTRYDN )
1892 && ( SLAP_OPATTRS( rs->sr_attr_flags ) || ( rs->sr_attrs &&
1893 ad_inlist( slap_schema.si_ad_entryDN, rs->sr_attrs ) ) ) )
1895 *ap = slap_operational_entryDN( rs->sr_entry );
1896 ap = &(*ap)->a_next;
1899 if ( !( rs->sr_flags & REP_NO_SUBSCHEMA)
1900 && ( SLAP_OPATTRS( rs->sr_attr_flags ) || ( rs->sr_attrs &&
1901 ad_inlist( slap_schema.si_ad_subschemaSubentry, rs->sr_attrs ) ) ) )
1903 *ap = slap_operational_subschemaSubentry( op->o_bd );
1904 ap = &(*ap)->a_next;
1907 /* Let the overlays have a chance at this */
1908 if ( oex && ((OpExtraDB *)oex)->oe_db )
1909 op->o_bd = ((OpExtraDB *)oex)->oe_db;
1911 if ( !op->o_bd || !SLAP_DBHIDDEN( op->o_bd ))
1912 op->o_bd = select_backend( &op->o_req_ndn, 0 );
1914 if ( op->o_bd != NULL && !be_match( op->o_bd, frontendDB ) &&
1915 ( SLAP_OPATTRS( rs->sr_attr_flags ) || rs->sr_attrs ) &&
1916 op->o_bd->be_operational != NULL )
1918 rc = op->o_bd->be_operational( op, rs );
1925 int backend_operational( Operation *op, SlapReply *rs )
1931 oex.oe_db = op->o_bd;
1932 oex.oe.oe_key = (void *)backend_operational;
1933 LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex.oe, oe_next);
1935 /* Moved this into the frontend so global overlays are called */
1938 op->o_bd = frontendDB;
1939 rc = frontendDB->be_operational( op, rs );
1941 LDAP_SLIST_REMOVE(&op->o_extra, &oex.oe, OpExtra, oe_next);