1 /* backend.c - routines for dealing with back-end databases */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2009 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);
616 backend_init_controls( bi );
628 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
629 if ( be->bd_info->bi_db_close ) {
630 be->bd_info->bi_db_close( be, NULL );
634 if ( frontendDB->bd_info->bi_db_close ) {
635 frontendDB->bd_info->bi_db_close( frontendDB, NULL );
646 ber_len_t len, dnlen = dn->bv_len;
649 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
650 if ( be->be_nsuffix == NULL || SLAP_DBHIDDEN( be )) {
654 for ( j = 0; !BER_BVISNULL( &be->be_nsuffix[j] ); j++ )
656 if ( ( SLAP_GLUE_SUBORDINATE( be ) ) && noSubs )
661 len = be->be_nsuffix[j].bv_len;
664 /* suffix is longer than DN */
669 * input DN is normalized, so the separator check
670 * need not look at escaping
672 if ( len && len < dnlen &&
673 !DN_SEPARATOR( dn->bv_val[(dnlen-len)-1] ))
678 if ( strcmp( be->be_nsuffix[j].bv_val,
679 &dn->bv_val[dnlen-len] ) == 0 )
692 struct berval *bvsuffix )
696 if ( be->be_nsuffix == NULL ) {
700 for ( i = 0; !BER_BVISNULL( &be->be_nsuffix[i] ); i++ ) {
701 if ( bvmatch( &be->be_nsuffix[i], bvsuffix ) ) {
712 struct berval *bvsubordinate )
716 if ( be->be_nsuffix == NULL ) {
720 for ( i = 0; !BER_BVISNULL( &be->be_nsuffix[i] ); i++ ) {
721 if ( dnIsSuffix( bvsubordinate, &be->be_nsuffix[i] ) ) {
730 be_isroot_dn( Backend *be, struct berval *ndn )
732 if ( BER_BVISEMPTY( ndn ) || BER_BVISEMPTY( &be->be_rootndn ) ) {
736 return dn_match( &be->be_rootndn, ndn );
740 be_slurp_update( Operation *op )
742 return ( SLAP_SLURP_SHADOW( op->o_bd ) &&
743 be_isupdate_dn( op->o_bd, &op->o_ndn ) );
747 be_shadow_update( Operation *op )
749 /* This assumes that all internal ops (connid == -1) on a syncrepl
750 * database are syncrepl operations.
752 return (( SLAP_SYNC_SHADOW( op->o_bd ) && op->o_connid == -1 ) ||
753 ( SLAP_SHADOW( op->o_bd ) && be_isupdate_dn( op->o_bd, &op->o_ndn ) ) );
757 be_isupdate_dn( Backend *be, struct berval *ndn )
759 if ( BER_BVISEMPTY( ndn ) || BER_BVISEMPTY( &be->be_update_ndn ) ) {
763 return dn_match( &be->be_update_ndn, ndn );
767 be_root_dn( Backend *be )
769 return &be->be_rootdn;
773 be_isroot( Operation *op )
775 return be_isroot_dn( op->o_bd, &op->o_ndn );
779 be_isroot_pw( Operation *op )
781 return be_rootdn_bind( op, NULL ) == LDAP_SUCCESS;
785 * checks if binding as rootdn
788 * SLAP_CB_CONTINUE if not the rootdn, or if rootpw is null
789 * LDAP_SUCCESS if rootdn & rootpw
790 * LDAP_INVALID_CREDENTIALS if rootdn & !rootpw
793 * if LDAP_SUCCESS, op->orb_edn is set
794 * if LDAP_INVALID_CREDENTIALS, response is sent to client
797 be_rootdn_bind( Operation *op, SlapReply *rs )
801 void *old_authctx = NULL;
804 assert( op->o_tag == LDAP_REQ_BIND );
805 assert( op->orb_method == LDAP_AUTH_SIMPLE );
807 if ( !be_isroot_dn( op->o_bd, &op->o_req_ndn ) ) {
808 return SLAP_CB_CONTINUE;
811 if ( BER_BVISNULL( &op->o_bd->be_rootpw ) ) {
812 /* give the database a chance */
813 return SLAP_CB_CONTINUE;
816 if ( BER_BVISEMPTY( &op->o_bd->be_rootpw ) ) {
817 /* rootdn bind explicitly disallowed */
818 rc = LDAP_INVALID_CREDENTIALS;
827 ldap_pvt_thread_pool_setkey( op->o_threadctx, (void *)slap_sasl_bind,
828 op->o_conn->c_sasl_authctx, 0, &old_authctx, NULL );
831 rc = lutil_passwd( &op->o_bd->be_rootpw, &op->orb_cred, NULL, NULL );
834 ldap_pvt_thread_pool_setkey( op->o_threadctx, (void *)slap_sasl_bind,
835 old_authctx, 0, NULL, NULL );
838 rc = ( rc == 0 ? LDAP_SUCCESS : LDAP_INVALID_CREDENTIALS );
843 Debug( LDAP_DEBUG_TRACE, "%s: rootdn=\"%s\" bind%s\n",
844 op->o_log_prefix, op->o_bd->be_rootdn.bv_val,
845 rc == LDAP_SUCCESS ? " succeeded" : " failed" );
847 if ( rc == LDAP_SUCCESS ) {
848 /* Set to the pretty rootdn */
849 ber_dupbv( &op->orb_edn, &op->o_bd->be_rootdn );
852 send_ldap_result( op, rs );
865 if ( op->o_bd->be_release ) {
866 /* free and release entry from backend */
867 return op->o_bd->be_release( op, e, rw );
876 backend_unbind( Operation *op, SlapReply *rs )
880 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
881 if ( be->be_unbind ) {
883 be->be_unbind( op, rs );
891 backend_connection_init(
896 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
897 if ( be->be_connection_init ) {
898 be->be_connection_init( be, conn );
906 backend_connection_destroy(
911 LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
912 if ( be->be_connection_destroy ) {
913 be->be_connection_destroy( be, conn);
921 backend_check_controls(
925 LDAPControl **ctrls = op->o_ctrls;
926 rs->sr_err = LDAP_SUCCESS;
929 for( ; *ctrls != NULL ; ctrls++ ) {
932 switch ( slap_global_control( op, (*ctrls)->ldctl_oid, &cid ) ) {
933 case LDAP_CONTROL_NOT_FOUND:
934 /* unrecognized control */
935 if ( (*ctrls)->ldctl_iscritical ) {
936 /* should not be reachable */
937 Debug( LDAP_DEBUG_ANY, "backend_check_controls: "
938 "unrecognized critical control: %s\n",
939 (*ctrls)->ldctl_oid, 0, 0 );
942 Debug( LDAP_DEBUG_TRACE, "backend_check_controls: "
943 "unrecognized non-critical control: %s\n",
944 (*ctrls)->ldctl_oid, 0, 0 );
948 case LDAP_COMPARE_FALSE:
949 if ( !op->o_bd->be_ctrls[cid] && (*ctrls)->ldctl_iscritical ) {
950 #ifdef SLAP_CONTROL_X_WHATFAILED
951 if ( get_whatFailed( op ) ) {
953 oids[ 0 ] = (*ctrls)->ldctl_oid;
955 slap_ctrl_whatFailed_add( op, rs, oids );
958 /* RFC 4511 allows unavailableCriticalExtension to be
959 * returned when the server is unwilling to perform
960 * an operation extended by a recognized critical
963 rs->sr_text = "critical control unavailable in context";
964 rs->sr_err = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
969 case LDAP_COMPARE_TRUE:
974 Debug( LDAP_DEBUG_ANY,
975 "backend_check_controls: unable to check control: %s\n",
976 (*ctrls)->ldctl_oid, 0, 0 );
979 rs->sr_text = "unable to check control";
980 rs->sr_err = LDAP_OTHER;
986 #if 0 /* temporarily removed */
987 /* check should be generalized */
988 if( get_relax(op) && !be_isroot(op)) {
989 rs->sr_text = "requires manager authorization";
990 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
999 backend_check_restrictions(
1002 struct berval *opdata )
1004 slap_mask_t restrictops;
1005 slap_mask_t requires;
1007 slap_mask_t exopflag = 0;
1008 slap_ssf_set_t *ssf;
1014 int rc = SLAP_CB_CONTINUE;
1016 if ( op->o_bd->be_chk_controls ) {
1017 rc = ( *op->o_bd->be_chk_controls )( op, rs );
1020 if ( rc == SLAP_CB_CONTINUE ) {
1021 rc = backend_check_controls( op, rs );
1024 if ( rc != LDAP_SUCCESS ) {
1028 restrictops = op->o_bd->be_restrictops;
1029 requires = op->o_bd->be_requires;
1030 ssf = &op->o_bd->be_ssf_set;
1033 restrictops = frontendDB->be_restrictops;
1034 requires = frontendDB->be_requires;
1035 ssf = &frontendDB->be_ssf_set;
1038 switch( op->o_tag ) {
1040 opflag = SLAP_RESTRICT_OP_ADD;
1044 opflag = SLAP_RESTRICT_OP_BIND;
1047 case LDAP_REQ_COMPARE:
1048 opflag = SLAP_RESTRICT_OP_COMPARE;
1050 case LDAP_REQ_DELETE:
1052 opflag = SLAP_RESTRICT_OP_DELETE;
1054 case LDAP_REQ_EXTENDED:
1055 opflag = SLAP_RESTRICT_OP_EXTENDED;
1058 /* treat unspecified as a modify */
1059 opflag = SLAP_RESTRICT_OP_MODIFY;
1064 if( bvmatch( opdata, &slap_EXOP_START_TLS ) ) {
1067 exopflag = SLAP_RESTRICT_EXOP_START_TLS;
1071 if( bvmatch( opdata, &slap_EXOP_WHOAMI ) ) {
1072 exopflag = SLAP_RESTRICT_EXOP_WHOAMI;
1076 if ( bvmatch( opdata, &slap_EXOP_CANCEL ) ) {
1077 exopflag = SLAP_RESTRICT_EXOP_CANCEL;
1081 if ( bvmatch( opdata, &slap_EXOP_MODIFY_PASSWD ) ) {
1082 exopflag = SLAP_RESTRICT_EXOP_MODIFY_PASSWD;
1087 /* treat everything else as a modify */
1088 opflag = SLAP_RESTRICT_OP_MODIFY;
1092 case LDAP_REQ_MODIFY:
1094 opflag = SLAP_RESTRICT_OP_MODIFY;
1096 case LDAP_REQ_RENAME:
1098 opflag = SLAP_RESTRICT_OP_RENAME;
1100 case LDAP_REQ_SEARCH:
1101 opflag = SLAP_RESTRICT_OP_SEARCH;
1103 case LDAP_REQ_UNBIND:
1108 rs->sr_text = "restrict operations internal error";
1109 rs->sr_err = LDAP_OTHER;
1114 /* these checks don't apply to StartTLS */
1116 rs->sr_err = LDAP_CONFIDENTIALITY_REQUIRED;
1117 if( op->o_transport_ssf < ssf->sss_transport ) {
1118 rs->sr_text = op->o_transport_ssf
1119 ? "stronger transport confidentiality required"
1120 : "transport confidentiality required";
1124 if( op->o_tls_ssf < ssf->sss_tls ) {
1125 rs->sr_text = op->o_tls_ssf
1126 ? "stronger TLS confidentiality required"
1127 : "TLS confidentiality required";
1132 if( op->o_tag == LDAP_REQ_BIND && opdata == NULL ) {
1133 /* simple bind specific check */
1134 if( op->o_ssf < ssf->sss_simple_bind ) {
1135 rs->sr_text = op->o_ssf
1136 ? "stronger confidentiality required"
1137 : "confidentiality required";
1142 if( op->o_tag != LDAP_REQ_BIND || opdata == NULL ) {
1143 /* these checks don't apply to SASL bind */
1145 if( op->o_sasl_ssf < ssf->sss_sasl ) {
1146 rs->sr_text = op->o_sasl_ssf
1147 ? "stronger SASL confidentiality required"
1148 : "SASL confidentiality required";
1152 if( op->o_ssf < ssf->sss_ssf ) {
1153 rs->sr_text = op->o_ssf
1154 ? "stronger confidentiality required"
1155 : "confidentiality required";
1161 if( op->o_transport_ssf < ssf->sss_update_transport ) {
1162 rs->sr_text = op->o_transport_ssf
1163 ? "stronger transport confidentiality required for update"
1164 : "transport confidentiality required for update";
1168 if( op->o_tls_ssf < ssf->sss_update_tls ) {
1169 rs->sr_text = op->o_tls_ssf
1170 ? "stronger TLS confidentiality required for update"
1171 : "TLS confidentiality required for update";
1175 if( op->o_sasl_ssf < ssf->sss_update_sasl ) {
1176 rs->sr_text = op->o_sasl_ssf
1177 ? "stronger SASL confidentiality required for update"
1178 : "SASL confidentiality required for update";
1182 if( op->o_ssf < ssf->sss_update_ssf ) {
1183 rs->sr_text = op->o_ssf
1184 ? "stronger confidentiality required for update"
1185 : "confidentiality required for update";
1189 if( !( global_allows & SLAP_ALLOW_UPDATE_ANON ) &&
1190 BER_BVISEMPTY( &op->o_ndn ) )
1192 rs->sr_text = "modifications require authentication";
1193 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1197 #ifdef SLAP_X_LISTENER_MOD
1198 if ( op->o_conn->c_listener &&
1199 ! ( op->o_conn->c_listener->sl_perms & ( !BER_BVISEMPTY( &op->o_ndn )
1200 ? (S_IWUSR|S_IWOTH) : S_IWOTH ) ) )
1202 /* no "w" mode means readonly */
1203 rs->sr_text = "modifications not allowed on this listener";
1204 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1207 #endif /* SLAP_X_LISTENER_MOD */
1212 /* these checks don't apply to Bind, StartTLS, or Unbind */
1214 if( requires & SLAP_REQUIRE_STRONG ) {
1215 /* should check mechanism */
1216 if( ( op->o_transport_ssf < ssf->sss_transport
1217 && op->o_authtype == LDAP_AUTH_SIMPLE )
1218 || BER_BVISEMPTY( &op->o_dn ) )
1220 rs->sr_text = "strong(er) authentication required";
1221 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1226 if( requires & SLAP_REQUIRE_SASL ) {
1227 if( op->o_authtype != LDAP_AUTH_SASL || BER_BVISEMPTY( &op->o_dn ) ) {
1228 rs->sr_text = "SASL authentication required";
1229 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1234 if( requires & SLAP_REQUIRE_AUTHC ) {
1235 if( BER_BVISEMPTY( &op->o_dn ) ) {
1236 rs->sr_text = "authentication required";
1237 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1242 if( requires & SLAP_REQUIRE_BIND ) {
1244 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1245 version = op->o_conn->c_protocol;
1246 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1249 /* no bind has occurred */
1250 rs->sr_text = "BIND required";
1251 rs->sr_err = LDAP_OPERATIONS_ERROR;
1256 if( requires & SLAP_REQUIRE_LDAP_V3 ) {
1257 if( op->o_protocol < LDAP_VERSION3 ) {
1258 /* no bind has occurred */
1259 rs->sr_text = "operation restricted to LDAPv3 clients";
1260 rs->sr_err = LDAP_OPERATIONS_ERROR;
1265 #ifdef SLAP_X_LISTENER_MOD
1266 if ( !starttls && BER_BVISEMPTY( &op->o_dn ) ) {
1267 if ( op->o_conn->c_listener &&
1268 !( op->o_conn->c_listener->sl_perms & S_IXOTH ))
1270 /* no "x" mode means bind required */
1271 rs->sr_text = "bind required on this listener";
1272 rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
1277 if ( !starttls && !updateop ) {
1278 if ( op->o_conn->c_listener &&
1279 !( op->o_conn->c_listener->sl_perms &
1280 ( !BER_BVISEMPTY( &op->o_dn )
1281 ? (S_IRUSR|S_IROTH) : S_IROTH )))
1283 /* no "r" mode means no read */
1284 rs->sr_text = "read not allowed on this listener";
1285 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1289 #endif /* SLAP_X_LISTENER_MOD */
1293 if( ( restrictops & opflag )
1294 || ( exopflag && ( restrictops & exopflag ) ) ) {
1295 if( ( restrictops & SLAP_RESTRICT_OP_MASK) == SLAP_RESTRICT_OP_READS ) {
1296 rs->sr_text = "read operations restricted";
1297 } else if ( restrictops & exopflag ) {
1298 rs->sr_text = "extended operation restricted";
1300 rs->sr_text = "operation restricted";
1302 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1306 rs->sr_err = LDAP_SUCCESS;
1310 int backend_check_referrals( Operation *op, SlapReply *rs )
1312 rs->sr_err = LDAP_SUCCESS;
1314 if( op->o_bd->be_chk_referrals ) {
1315 rs->sr_err = op->o_bd->be_chk_referrals( op, rs );
1317 if( rs->sr_err != LDAP_SUCCESS && rs->sr_err != LDAP_REFERRAL ) {
1318 send_ldap_result( op, rs );
1330 AttributeDescription *at,
1336 if ( op->o_bd == NULL ) {
1337 return LDAP_NO_SUCH_OBJECT;
1340 if ( op->o_bd->be_fetch ) {
1341 return op->o_bd->be_fetch( op, ndn, oc, at, rw, e );
1344 return LDAP_UNWILLING_TO_PERFORM;
1351 struct berval *gr_ndn,
1352 struct berval *op_ndn,
1353 ObjectClass *group_oc,
1354 AttributeDescription *group_at )
1357 void *o_priv = op->o_private, *e_priv = NULL;
1361 Backend *be = op->o_bd;
1364 LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
1365 if ( oex->oe_key == (void *)backend_group )
1369 if ( oex && ((OpExtraDB *)oex)->oe_db )
1370 op->o_bd = ((OpExtraDB *)oex)->oe_db;
1372 if ( !op->o_bd || !SLAP_DBHIDDEN( op->o_bd ))
1373 op->o_bd = select_backend( gr_ndn, 0 );
1375 for ( g = op->o_groups; g; g = g->ga_next ) {
1376 if ( g->ga_be != op->o_bd || g->ga_oc != group_oc ||
1377 g->ga_at != group_at || g->ga_len != gr_ndn->bv_len )
1381 if ( strcmp( g->ga_ndn, gr_ndn->bv_val ) == 0 ) {
1391 if ( target && dn_match( &target->e_nname, gr_ndn ) ) {
1396 op->o_private = NULL;
1397 rc = be_entry_get_rw( op, gr_ndn, group_oc, group_at, 0, &e );
1398 e_priv = op->o_private;
1399 op->o_private = o_priv;
1403 a = attr_find( e->e_attrs, group_at );
1405 /* If the attribute is a subtype of labeledURI,
1406 * treat this as a dynamic group ala groupOfURLs
1408 if ( is_at_subtype( group_at->ad_type,
1409 slap_schema.si_ad_labeledURI->ad_type ) )
1413 struct berval bv, nbase;
1416 void *user_priv = NULL;
1417 Backend *b2 = op->o_bd;
1419 if ( target && dn_match( &target->e_nname, op_ndn ) ) {
1423 rc = LDAP_COMPARE_FALSE;
1424 for ( i = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
1425 if ( ldap_url_parse( a->a_vals[i].bv_val, &ludp ) !=
1431 BER_BVZERO( &nbase );
1433 /* host, attrs and extensions parts must be empty */
1434 if ( ( ludp->lud_host && *ludp->lud_host )
1441 ber_str2bv( ludp->lud_dn, 0, 0, &bv );
1442 if ( dnNormalize( 0, NULL, NULL, &bv, &nbase,
1443 op->o_tmpmemctx ) != LDAP_SUCCESS )
1448 switch ( ludp->lud_scope ) {
1449 case LDAP_SCOPE_BASE:
1450 if ( !dn_match( &nbase, op_ndn ) ) {
1454 case LDAP_SCOPE_ONELEVEL:
1455 dnParent( op_ndn, &bv );
1456 if ( !dn_match( &nbase, &bv ) ) {
1460 case LDAP_SCOPE_SUBTREE:
1461 if ( !dnIsSuffix( op_ndn, &nbase ) ) {
1465 case LDAP_SCOPE_SUBORDINATE:
1466 if ( dn_match( &nbase, op_ndn ) ||
1467 !dnIsSuffix( op_ndn, &nbase ) )
1473 /* NOTE: this could be NULL
1474 * if no filter is provided,
1475 * or if filter parsing fails.
1476 * In the latter case,
1477 * we should give up. */
1478 if ( ludp->lud_filter != NULL && ludp->lud_filter != '\0') {
1479 filter = str2filter_x( op, ludp->lud_filter );
1480 if ( filter == NULL ) {
1486 /* only get user if required
1487 * and not available yet */
1488 if ( user == NULL ) {
1491 op->o_bd = select_backend( op_ndn, 0 );
1492 op->o_private = NULL;
1493 rc2 = be_entry_get_rw( op, op_ndn, NULL, NULL, 0, &user );
1494 user_priv = op->o_private;
1495 op->o_private = o_priv;
1503 if ( test_filter( NULL, user, filter ) ==
1508 filter_free_x( op, filter, 1 );
1511 ldap_free_urldesc( ludp );
1512 if ( !BER_BVISNULL( &nbase ) ) {
1513 op->o_tmpfree( nbase.bv_val, op->o_tmpmemctx );
1515 if ( rc != LDAP_COMPARE_FALSE ) {
1520 if ( user != NULL && user != target ) {
1521 op->o_private = user_priv;
1522 be_entry_release_r( op, user );
1523 op->o_private = o_priv;
1528 rc = attr_valfind( a,
1529 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
1530 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
1531 op_ndn, NULL, op->o_tmpmemctx );
1532 if ( rc == LDAP_NO_SUCH_ATTRIBUTE ) {
1533 rc = LDAP_COMPARE_FALSE;
1538 rc = LDAP_NO_SUCH_ATTRIBUTE;
1541 if ( e != target ) {
1542 op->o_private = e_priv;
1543 be_entry_release_r( op, e );
1544 op->o_private = o_priv;
1548 rc = LDAP_NO_SUCH_OBJECT;
1551 if ( op->o_tag != LDAP_REQ_BIND && !op->o_do_not_cache ) {
1552 g = op->o_tmpalloc( sizeof( GroupAssertion ) + gr_ndn->bv_len,
1554 g->ga_be = op->o_bd;
1555 g->ga_oc = group_oc;
1556 g->ga_at = group_at;
1558 g->ga_len = gr_ndn->bv_len;
1559 strcpy( g->ga_ndn, gr_ndn->bv_val );
1560 g->ga_next = op->o_groups;
1573 struct berval *gr_ndn,
1574 struct berval *op_ndn,
1575 ObjectClass *group_oc,
1576 AttributeDescription *group_at )
1582 if ( op->o_abandon ) {
1583 return SLAPD_ABANDON;
1586 oex.oe_db = op->o_bd;
1587 oex.oe.oe_key = (void *)backend_group;
1588 LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex.oe, oe_next);
1591 op->o_bd = frontendDB;
1592 rc = frontendDB->be_group( op, target, gr_ndn,
1593 op_ndn, group_oc, group_at );
1595 LDAP_SLIST_REMOVE(&op->o_extra, &oex.oe, OpExtra, oe_next);
1605 AttributeDescription *entry_at,
1607 slap_access_t access )
1610 void *o_priv = op->o_private, *e_priv = NULL;
1611 Attribute *a = NULL;
1612 int freeattr = 0, i, j, rc = LDAP_SUCCESS;
1613 AccessControlState acl_state = ACL_STATE_INIT;
1614 Backend *be = op->o_bd;
1617 LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
1618 if ( oex->oe_key == (void *)backend_attribute )
1622 if ( oex && ((OpExtraDB *)oex)->oe_db )
1623 op->o_bd = ((OpExtraDB *)oex)->oe_db;
1625 if ( !op->o_bd || !SLAP_DBHIDDEN( op->o_bd ))
1626 op->o_bd = select_backend( edn, 0 );
1628 if ( target && dn_match( &target->e_nname, edn ) ) {
1632 op->o_private = NULL;
1633 rc = be_entry_get_rw( op, edn, NULL, entry_at, 0, &e );
1634 e_priv = op->o_private;
1635 op->o_private = o_priv;
1639 if ( entry_at == slap_schema.si_ad_entry || entry_at == slap_schema.si_ad_children ) {
1640 assert( vals == NULL );
1643 if ( op->o_conn && access > ACL_NONE &&
1644 access_allowed( op, e, entry_at, NULL,
1645 access, &acl_state ) == 0 )
1647 rc = LDAP_INSUFFICIENT_ACCESS;
1652 a = attr_find( e->e_attrs, entry_at );
1654 SlapReply rs = { 0 };
1655 AttributeName anlist[ 2 ];
1657 anlist[ 0 ].an_name = entry_at->ad_cname;
1658 anlist[ 0 ].an_desc = entry_at;
1659 BER_BVZERO( &anlist[ 1 ].an_name );
1660 rs.sr_attrs = anlist;
1662 /* NOTE: backend_operational() is also called
1663 * when returning results, so it's supposed
1664 * to do no harm to entries */
1666 rc = backend_operational( op, &rs );
1669 if ( rc == LDAP_SUCCESS ) {
1670 if ( rs.sr_operational_attrs ) {
1672 a = rs.sr_operational_attrs;
1675 rc = LDAP_NO_SUCH_ATTRIBUTE;
1683 if ( op->o_conn && access > ACL_NONE &&
1684 access_allowed( op, e, entry_at, NULL,
1685 access, &acl_state ) == 0 )
1687 rc = LDAP_INSUFFICIENT_ACCESS;
1692 v = op->o_tmpalloc( sizeof(struct berval) * ( i + 1 ),
1694 for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ )
1696 if ( op->o_conn && access > ACL_NONE &&
1697 access_allowed( op, e, entry_at,
1704 ber_dupbv_x( &v[j], &a->a_nvals[i],
1706 if ( !BER_BVISNULL( &v[j] ) ) {
1711 op->o_tmpfree( v, op->o_tmpmemctx );
1713 rc = LDAP_INSUFFICIENT_ACCESS;
1716 BER_BVZERO( &v[j] );
1721 freeit: if ( e != target ) {
1722 op->o_private = e_priv;
1723 be_entry_release_r( op, e );
1724 op->o_private = o_priv;
1740 AttributeDescription *entry_at,
1742 slap_access_t access )
1748 oex.oe_db = op->o_bd;
1749 oex.oe.oe_key = (void *)backend_attribute;
1750 LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex.oe, oe_next);
1753 op->o_bd = frontendDB;
1754 rc = frontendDB->be_attribute( op, target, edn,
1755 entry_at, vals, access );
1757 LDAP_SLIST_REMOVE(&op->o_extra, &oex.oe, OpExtra, oe_next);
1767 AttributeDescription *entry_at,
1768 struct berval *nval,
1769 slap_access_t access,
1773 void *o_priv = op->o_private, *e_priv = NULL;
1774 int rc = LDAP_INSUFFICIENT_ACCESS;
1775 Backend *be = op->o_bd;
1778 assert( op != NULL );
1779 assert( op->o_conn != NULL );
1780 assert( edn != NULL );
1781 assert( access > ACL_NONE );
1784 op->o_bd = select_backend( edn, 0 );
1787 if ( target && dn_match( &target->e_nname, edn ) ) {
1791 op->o_private = NULL;
1792 rc = be_entry_get_rw( op, edn, NULL, entry_at, 0, &e );
1793 e_priv = op->o_private;
1794 op->o_private = o_priv;
1798 Attribute *a = NULL;
1801 if ( entry_at == NULL ) {
1802 entry_at = slap_schema.si_ad_entry;
1805 if ( entry_at == slap_schema.si_ad_entry || entry_at == slap_schema.si_ad_children )
1807 if ( access_allowed_mask( op, e, entry_at,
1808 NULL, access, NULL, mask ) == 0 )
1810 rc = LDAP_INSUFFICIENT_ACCESS;
1817 a = attr_find( e->e_attrs, entry_at );
1819 SlapReply rs = { 0 };
1820 AttributeName anlist[ 2 ];
1822 anlist[ 0 ].an_name = entry_at->ad_cname;
1823 anlist[ 0 ].an_desc = entry_at;
1824 BER_BVZERO( &anlist[ 1 ].an_name );
1825 rs.sr_attrs = anlist;
1827 rs.sr_attr_flags = slap_attr_flags( rs.sr_attrs );
1829 /* NOTE: backend_operational() is also called
1830 * when returning results, so it's supposed
1831 * to do no harm to entries */
1833 rc = backend_operational( op, &rs );
1836 if ( rc == LDAP_SUCCESS ) {
1837 if ( rs.sr_operational_attrs ) {
1839 a = rs.sr_operational_attrs;
1842 rc = LDAP_NO_SUCH_OBJECT;
1848 if ( access_allowed_mask( op, e, entry_at,
1849 nval, access, NULL, mask ) == 0 )
1851 rc = LDAP_INSUFFICIENT_ACCESS;
1857 freeit: if ( e != target ) {
1858 op->o_private = e_priv;
1859 be_entry_release_r( op, e );
1860 op->o_private = o_priv;
1877 int rc = LDAP_SUCCESS;
1878 BackendDB *be_orig = op->o_bd;
1881 LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
1882 if ( oex->oe_key == (void *)backend_operational )
1886 for ( ap = &rs->sr_operational_attrs; *ap; ap = &(*ap)->a_next )
1887 /* just count them */ ;
1890 * If operational attributes (allegedly) are required,
1891 * and the backend supports specific operational attributes,
1892 * add them to the attribute list
1894 if ( !( rs->sr_flags & REP_NO_ENTRYDN )
1895 && ( SLAP_OPATTRS( rs->sr_attr_flags ) || ( rs->sr_attrs &&
1896 ad_inlist( slap_schema.si_ad_entryDN, rs->sr_attrs ) ) ) )
1898 *ap = slap_operational_entryDN( rs->sr_entry );
1899 ap = &(*ap)->a_next;
1902 if ( !( rs->sr_flags & REP_NO_SUBSCHEMA)
1903 && ( SLAP_OPATTRS( rs->sr_attr_flags ) || ( rs->sr_attrs &&
1904 ad_inlist( slap_schema.si_ad_subschemaSubentry, rs->sr_attrs ) ) ) )
1906 *ap = slap_operational_subschemaSubentry( op->o_bd );
1907 ap = &(*ap)->a_next;
1910 /* Let the overlays have a chance at this */
1911 if ( oex && ((OpExtraDB *)oex)->oe_db )
1912 op->o_bd = ((OpExtraDB *)oex)->oe_db;
1914 if ( !op->o_bd || !SLAP_DBHIDDEN( op->o_bd ))
1915 op->o_bd = select_backend( &op->o_req_ndn, 0 );
1917 if ( op->o_bd != NULL && !be_match( op->o_bd, frontendDB ) &&
1918 ( SLAP_OPATTRS( rs->sr_attr_flags ) || rs->sr_attrs ) &&
1919 op->o_bd->be_operational != NULL )
1921 rc = op->o_bd->be_operational( op, rs );
1928 int backend_operational( Operation *op, SlapReply *rs )
1934 oex.oe_db = op->o_bd;
1935 oex.oe.oe_key = (void *)backend_operational;
1936 LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex.oe, oe_next);
1938 /* Moved this into the frontend so global overlays are called */
1941 op->o_bd = frontendDB;
1942 rc = frontendDB->be_operational( op, rs );
1944 LDAP_SLIST_REMOVE(&op->o_extra, &oex.oe, OpExtra, oe_next);