mirror of
https://git.openldap.org/openldap/openldap.git
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453 lines
11 KiB
C
453 lines
11 KiB
C
/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1999-2012 The OpenLDAP Foundation.
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* Portions Copyright 2001-2003 Pierangelo Masarati.
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* Portions Copyright 1999-2003 Howard Chu.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/socket.h>
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#include "slap.h"
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#include "config.h"
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#include "../back-ldap/back-ldap.h"
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#include "back-meta.h"
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int
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meta_back_open(
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BackendInfo *bi )
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{
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/* FIXME: need to remove the pagedResults, and likely more... */
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bi->bi_controls = slap_known_controls;
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return 0;
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}
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int
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meta_back_initialize(
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BackendInfo *bi )
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{
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bi->bi_flags =
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#if 0
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/* this is not (yet) set essentially because back-meta does not
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* directly support extended operations... */
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#ifdef LDAP_DYNAMIC_OBJECTS
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/* this is set because all the support a proxy has to provide
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* is the capability to forward the refresh exop, and to
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* pass thru entries that contain the dynamicObject class
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* and the entryTtl attribute */
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SLAP_BFLAG_DYNAMIC |
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#endif /* LDAP_DYNAMIC_OBJECTS */
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#endif
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/* back-meta recognizes RFC4525 increment;
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* let the remote server complain, if needed (ITS#5912) */
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SLAP_BFLAG_INCREMENT;
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bi->bi_open = meta_back_open;
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bi->bi_config = 0;
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bi->bi_close = 0;
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bi->bi_destroy = 0;
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bi->bi_db_init = meta_back_db_init;
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bi->bi_db_config = meta_back_db_config;
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bi->bi_db_open = meta_back_db_open;
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bi->bi_db_close = 0;
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bi->bi_db_destroy = meta_back_db_destroy;
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bi->bi_op_bind = meta_back_bind;
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bi->bi_op_unbind = 0;
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bi->bi_op_search = meta_back_search;
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bi->bi_op_compare = meta_back_compare;
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bi->bi_op_modify = meta_back_modify;
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bi->bi_op_modrdn = meta_back_modrdn;
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bi->bi_op_add = meta_back_add;
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bi->bi_op_delete = meta_back_delete;
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bi->bi_op_abandon = 0;
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bi->bi_extended = 0;
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bi->bi_chk_referrals = 0;
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bi->bi_connection_init = 0;
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bi->bi_connection_destroy = meta_back_conn_destroy;
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return 0;
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}
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int
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meta_back_db_init(
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Backend *be,
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ConfigReply *cr)
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{
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metainfo_t *mi;
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int i;
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BackendInfo *bi;
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bi = backend_info( "ldap" );
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if ( !bi || !bi->bi_extra ) {
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Debug( LDAP_DEBUG_ANY,
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"meta_back_db_init: needs back-ldap\n",
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0, 0, 0 );
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return 1;
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}
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mi = ch_calloc( 1, sizeof( metainfo_t ) );
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if ( mi == NULL ) {
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return -1;
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}
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/* set default flags */
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mi->mi_flags =
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META_BACK_F_DEFER_ROOTDN_BIND;
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/*
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* At present the default is no default target;
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* this may change
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*/
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mi->mi_defaulttarget = META_DEFAULT_TARGET_NONE;
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mi->mi_bind_timeout.tv_sec = 0;
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mi->mi_bind_timeout.tv_usec = META_BIND_TIMEOUT;
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mi->mi_rebind_f = meta_back_default_rebind;
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mi->mi_urllist_f = meta_back_default_urllist;
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ldap_pvt_thread_mutex_init( &mi->mi_conninfo.lai_mutex );
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ldap_pvt_thread_mutex_init( &mi->mi_cache.mutex );
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/* safe default */
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mi->mi_nretries = META_RETRY_DEFAULT;
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mi->mi_version = LDAP_VERSION3;
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for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
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mi->mi_conn_priv[ i ].mic_num = 0;
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LDAP_TAILQ_INIT( &mi->mi_conn_priv[ i ].mic_priv );
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}
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mi->mi_conn_priv_max = LDAP_BACK_CONN_PRIV_DEFAULT;
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mi->mi_ldap_extra = (ldap_extra_t *)bi->bi_extra;
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be->be_private = mi;
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return 0;
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}
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int
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meta_back_db_open(
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Backend *be,
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ConfigReply *cr )
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{
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metainfo_t *mi = (metainfo_t *)be->be_private;
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int i,
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not_always = 0,
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not_always_anon_proxyauthz = 0,
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not_always_anon_non_prescriptive = 0,
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rc;
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if ( mi->mi_ntargets == 0 ) {
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Debug( LDAP_DEBUG_ANY,
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"meta_back_db_open: no targets defined\n",
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0, 0, 0 );
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return 1;
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}
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for ( i = 0; i < mi->mi_ntargets; i++ ) {
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slap_bindconf sb = { BER_BVNULL };
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metatarget_t *mt = mi->mi_targets[ i ];
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struct berval mapped;
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ber_str2bv( mt->mt_uri, 0, 0, &sb.sb_uri );
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sb.sb_version = mt->mt_version;
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sb.sb_method = LDAP_AUTH_SIMPLE;
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BER_BVSTR( &sb.sb_binddn, "" );
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if ( META_BACK_TGT_T_F_DISCOVER( mt ) ) {
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rc = slap_discover_feature( &sb,
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slap_schema.si_ad_supportedFeatures->ad_cname.bv_val,
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LDAP_FEATURE_ABSOLUTE_FILTERS );
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if ( rc == LDAP_COMPARE_TRUE ) {
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mt->mt_flags |= LDAP_BACK_F_T_F;
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}
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}
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if ( META_BACK_TGT_CANCEL_DISCOVER( mt ) ) {
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rc = slap_discover_feature( &sb,
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slap_schema.si_ad_supportedExtension->ad_cname.bv_val,
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LDAP_EXOP_CANCEL );
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if ( rc == LDAP_COMPARE_TRUE ) {
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mt->mt_flags |= LDAP_BACK_F_CANCEL_EXOP;
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}
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}
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if ( not_always == 0 ) {
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if ( !( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE )
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|| mt->mt_idassert_authz != NULL )
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{
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not_always = 1;
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}
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}
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if ( ( mt->mt_idassert_flags & LDAP_BACK_AUTH_AUTHZ_ALL )
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&& !( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) )
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{
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Debug( LDAP_DEBUG_ANY, "meta_back_db_open(%s): "
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"target #%d inconsistent idassert configuration "
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"(likely authz=\"*\" used with \"non-prescriptive\" flag)\n",
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be->be_suffix[ 0 ].bv_val, i, 0 );
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return 1;
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}
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if ( not_always_anon_proxyauthz == 0 ) {
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if ( !( mt->mt_idassert_flags & LDAP_BACK_AUTH_AUTHZ_ALL ) )
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{
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not_always_anon_proxyauthz = 1;
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}
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}
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if ( not_always_anon_non_prescriptive == 0 ) {
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if ( ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) )
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{
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not_always_anon_non_prescriptive = 1;
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}
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}
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BER_BVZERO( &mapped );
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ldap_back_map( &mt->mt_rwmap.rwm_at,
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&slap_schema.si_ad_entryDN->ad_cname, &mapped,
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BACKLDAP_REMAP );
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if ( BER_BVISNULL( &mapped ) || mapped.bv_val[0] == '\0' ) {
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mt->mt_rep_flags |= REP_NO_ENTRYDN;
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}
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BER_BVZERO( &mapped );
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ldap_back_map( &mt->mt_rwmap.rwm_at,
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&slap_schema.si_ad_subschemaSubentry->ad_cname, &mapped,
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BACKLDAP_REMAP );
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if ( BER_BVISNULL( &mapped ) || mapped.bv_val[0] == '\0' ) {
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mt->mt_rep_flags |= REP_NO_SUBSCHEMA;
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}
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}
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if ( not_always == 0 ) {
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mi->mi_flags |= META_BACK_F_PROXYAUTHZ_ALWAYS;
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}
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if ( not_always_anon_proxyauthz == 0 ) {
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mi->mi_flags |= META_BACK_F_PROXYAUTHZ_ANON;
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} else if ( not_always_anon_non_prescriptive == 0 ) {
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mi->mi_flags |= META_BACK_F_PROXYAUTHZ_NOANON;
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}
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return 0;
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}
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/*
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* meta_back_conn_free()
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*
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* actually frees a connection; the reference count must be 0,
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* and it must not (or no longer) be in the cache.
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*/
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void
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meta_back_conn_free(
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void *v_mc )
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{
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metaconn_t *mc = v_mc;
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int ntargets;
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assert( mc != NULL );
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assert( mc->mc_refcnt == 0 );
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/* at least one must be present... */
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ntargets = mc->mc_info->mi_ntargets;
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assert( ntargets > 0 );
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for ( ; ntargets--; ) {
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(void)meta_clear_one_candidate( NULL, mc, ntargets );
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}
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if ( !BER_BVISNULL( &mc->mc_local_ndn ) ) {
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free( mc->mc_local_ndn.bv_val );
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}
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free( mc );
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}
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static void
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mapping_free(
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void *v_mapping )
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{
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struct ldapmapping *mapping = v_mapping;
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ch_free( mapping->src.bv_val );
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ch_free( mapping->dst.bv_val );
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ch_free( mapping );
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}
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static void
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mapping_dst_free(
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void *v_mapping )
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{
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struct ldapmapping *mapping = v_mapping;
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if ( BER_BVISEMPTY( &mapping->dst ) ) {
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mapping_free( &mapping[ -1 ] );
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}
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}
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static void
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target_free(
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metatarget_t *mt )
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{
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if ( mt->mt_uri ) {
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free( mt->mt_uri );
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ldap_pvt_thread_mutex_destroy( &mt->mt_uri_mutex );
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}
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if ( mt->mt_subtree ) {
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meta_subtree_destroy( mt->mt_subtree );
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mt->mt_subtree = NULL;
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}
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if ( !BER_BVISNULL( &mt->mt_psuffix ) ) {
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free( mt->mt_psuffix.bv_val );
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}
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if ( !BER_BVISNULL( &mt->mt_nsuffix ) ) {
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free( mt->mt_nsuffix.bv_val );
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}
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if ( !BER_BVISNULL( &mt->mt_binddn ) ) {
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free( mt->mt_binddn.bv_val );
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}
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if ( !BER_BVISNULL( &mt->mt_bindpw ) ) {
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free( mt->mt_bindpw.bv_val );
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}
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if ( !BER_BVISNULL( &mt->mt_idassert_authcID ) ) {
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ch_free( mt->mt_idassert_authcID.bv_val );
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}
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if ( !BER_BVISNULL( &mt->mt_idassert_authcDN ) ) {
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ch_free( mt->mt_idassert_authcDN.bv_val );
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}
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if ( !BER_BVISNULL( &mt->mt_idassert_passwd ) ) {
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ch_free( mt->mt_idassert_passwd.bv_val );
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}
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if ( !BER_BVISNULL( &mt->mt_idassert_authzID ) ) {
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ch_free( mt->mt_idassert_authzID.bv_val );
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}
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if ( !BER_BVISNULL( &mt->mt_idassert_sasl_mech ) ) {
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ch_free( mt->mt_idassert_sasl_mech.bv_val );
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}
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if ( !BER_BVISNULL( &mt->mt_idassert_sasl_realm ) ) {
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ch_free( mt->mt_idassert_sasl_realm.bv_val );
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}
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if ( mt->mt_idassert_authz != NULL ) {
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ber_bvarray_free( mt->mt_idassert_authz );
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}
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if ( mt->mt_rwmap.rwm_rw ) {
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rewrite_info_delete( &mt->mt_rwmap.rwm_rw );
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}
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avl_free( mt->mt_rwmap.rwm_oc.remap, mapping_dst_free );
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avl_free( mt->mt_rwmap.rwm_oc.map, mapping_free );
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avl_free( mt->mt_rwmap.rwm_at.remap, mapping_dst_free );
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avl_free( mt->mt_rwmap.rwm_at.map, mapping_free );
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free( mt );
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}
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int
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meta_back_db_destroy(
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Backend *be,
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ConfigReply *cr )
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{
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metainfo_t *mi;
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if ( be->be_private ) {
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int i;
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mi = ( metainfo_t * )be->be_private;
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/*
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* Destroy the connection tree
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*/
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ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
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if ( mi->mi_conninfo.lai_tree ) {
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avl_free( mi->mi_conninfo.lai_tree, meta_back_conn_free );
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}
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for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
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while ( !LDAP_TAILQ_EMPTY( &mi->mi_conn_priv[ i ].mic_priv ) ) {
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metaconn_t *mc = LDAP_TAILQ_FIRST( &mi->mi_conn_priv[ i ].mic_priv );
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LDAP_TAILQ_REMOVE( &mi->mi_conn_priv[ i ].mic_priv, mc, mc_q );
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meta_back_conn_free( mc );
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}
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}
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/*
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* Destroy the per-target stuff (assuming there's at
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* least one ...)
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*/
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if ( mi->mi_targets != NULL ) {
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for ( i = 0; i < mi->mi_ntargets; i++ ) {
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metatarget_t *mt = mi->mi_targets[ i ];
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if ( META_BACK_TGT_QUARANTINE( mt ) ) {
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if ( mt->mt_quarantine.ri_num != mi->mi_quarantine.ri_num )
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{
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mi->mi_ldap_extra->retry_info_destroy( &mt->mt_quarantine );
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}
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ldap_pvt_thread_mutex_destroy( &mt->mt_quarantine_mutex );
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}
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target_free( mt );
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}
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free( mi->mi_targets );
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}
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ldap_pvt_thread_mutex_lock( &mi->mi_cache.mutex );
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if ( mi->mi_cache.tree ) {
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avl_free( mi->mi_cache.tree, meta_dncache_free );
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}
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ldap_pvt_thread_mutex_unlock( &mi->mi_cache.mutex );
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ldap_pvt_thread_mutex_destroy( &mi->mi_cache.mutex );
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ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
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ldap_pvt_thread_mutex_destroy( &mi->mi_conninfo.lai_mutex );
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if ( mi->mi_candidates != NULL ) {
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ber_memfree_x( mi->mi_candidates, NULL );
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}
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if ( META_BACK_QUARANTINE( mi ) ) {
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mi->mi_ldap_extra->retry_info_destroy( &mi->mi_quarantine );
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}
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}
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free( be->be_private );
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return 0;
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}
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#if SLAPD_META == SLAPD_MOD_DYNAMIC
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/* conditionally define the init_module() function */
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SLAP_BACKEND_INIT_MODULE( meta )
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#endif /* SLAPD_META == SLAPD_MOD_DYNAMIC */
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