/* $NetBSD: init.c,v 1.1.1.5 2014/05/28 09:58:50 tron Exp $ */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software .
*
* Copyright 1999-2014 The OpenLDAP Foundation.
* Portions Copyright 2001-2003 Pierangelo Masarati.
* Portions Copyright 1999-2003 Howard Chu.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* .
*/
#include "portable.h"
#include
#include
#include
#include "slap.h"
#include "config.h"
#include "../back-ldap/back-ldap.h"
#include "back-meta.h"
int
meta_back_open(
BackendInfo *bi )
{
/* FIXME: need to remove the pagedResults, and likely more... */
bi->bi_controls = slap_known_controls;
return 0;
}
int
meta_back_initialize(
BackendInfo *bi )
{
bi->bi_flags =
#if 0
/* this is not (yet) set essentially because back-meta does not
* directly support extended operations... */
#ifdef LDAP_DYNAMIC_OBJECTS
/* this is set because all the support a proxy has to provide
* is the capability to forward the refresh exop, and to
* pass thru entries that contain the dynamicObject class
* and the entryTtl attribute */
SLAP_BFLAG_DYNAMIC |
#endif /* LDAP_DYNAMIC_OBJECTS */
#endif
/* back-meta recognizes RFC4525 increment;
* let the remote server complain, if needed (ITS#5912) */
SLAP_BFLAG_INCREMENT;
bi->bi_open = meta_back_open;
bi->bi_config = 0;
bi->bi_close = 0;
bi->bi_destroy = 0;
bi->bi_db_init = meta_back_db_init;
bi->bi_db_config = config_generic_wrapper;
bi->bi_db_open = meta_back_db_open;
bi->bi_db_close = 0;
bi->bi_db_destroy = meta_back_db_destroy;
bi->bi_op_bind = meta_back_bind;
bi->bi_op_unbind = 0;
bi->bi_op_search = meta_back_search;
bi->bi_op_compare = meta_back_compare;
bi->bi_op_modify = meta_back_modify;
bi->bi_op_modrdn = meta_back_modrdn;
bi->bi_op_add = meta_back_add;
bi->bi_op_delete = meta_back_delete;
bi->bi_op_abandon = 0;
bi->bi_extended = 0;
bi->bi_chk_referrals = 0;
bi->bi_connection_init = 0;
bi->bi_connection_destroy = meta_back_conn_destroy;
return meta_back_init_cf( bi );
}
int
meta_back_db_init(
Backend *be,
ConfigReply *cr)
{
metainfo_t *mi;
int i;
BackendInfo *bi;
bi = backend_info( "ldap" );
if ( !bi || !bi->bi_extra ) {
Debug( LDAP_DEBUG_ANY,
"meta_back_db_init: needs back-ldap\n",
0, 0, 0 );
return 1;
}
mi = ch_calloc( 1, sizeof( metainfo_t ) );
if ( mi == NULL ) {
return -1;
}
/* set default flags */
mi->mi_flags =
META_BACK_F_DEFER_ROOTDN_BIND
| META_BACK_F_PROXYAUTHZ_ALWAYS
| META_BACK_F_PROXYAUTHZ_ANON
| META_BACK_F_PROXYAUTHZ_NOANON;
/*
* At present the default is no default target;
* this may change
*/
mi->mi_defaulttarget = META_DEFAULT_TARGET_NONE;
mi->mi_bind_timeout.tv_sec = 0;
mi->mi_bind_timeout.tv_usec = META_BIND_TIMEOUT;
mi->mi_rebind_f = meta_back_default_rebind;
mi->mi_urllist_f = meta_back_default_urllist;
ldap_pvt_thread_mutex_init( &mi->mi_conninfo.lai_mutex );
ldap_pvt_thread_mutex_init( &mi->mi_cache.mutex );
/* safe default */
mi->mi_nretries = META_RETRY_DEFAULT;
mi->mi_version = LDAP_VERSION3;
for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
mi->mi_conn_priv[ i ].mic_num = 0;
LDAP_TAILQ_INIT( &mi->mi_conn_priv[ i ].mic_priv );
}
mi->mi_conn_priv_max = LDAP_BACK_CONN_PRIV_DEFAULT;
mi->mi_ldap_extra = (ldap_extra_t *)bi->bi_extra;
be->be_private = mi;
be->be_cf_ocs = be->bd_info->bi_cf_ocs;
return 0;
}
int
meta_target_finish(
metainfo_t *mi,
metatarget_t *mt,
const char *log,
char *msg,
size_t msize
)
{
slap_bindconf sb = { BER_BVNULL };
struct berval mapped;
int rc;
ber_str2bv( mt->mt_uri, 0, 0, &sb.sb_uri );
sb.sb_version = mt->mt_version;
sb.sb_method = LDAP_AUTH_SIMPLE;
BER_BVSTR( &sb.sb_binddn, "" );
if ( META_BACK_TGT_T_F_DISCOVER( mt ) ) {
rc = slap_discover_feature( &sb,
slap_schema.si_ad_supportedFeatures->ad_cname.bv_val,
LDAP_FEATURE_ABSOLUTE_FILTERS );
if ( rc == LDAP_COMPARE_TRUE ) {
mt->mt_flags |= LDAP_BACK_F_T_F;
}
}
if ( META_BACK_TGT_CANCEL_DISCOVER( mt ) ) {
rc = slap_discover_feature( &sb,
slap_schema.si_ad_supportedExtension->ad_cname.bv_val,
LDAP_EXOP_CANCEL );
if ( rc == LDAP_COMPARE_TRUE ) {
mt->mt_flags |= LDAP_BACK_F_CANCEL_EXOP;
}
}
if ( !( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE )
|| mt->mt_idassert_authz != NULL )
{
mi->mi_flags &= ~META_BACK_F_PROXYAUTHZ_ALWAYS;
}
if ( ( mt->mt_idassert_flags & LDAP_BACK_AUTH_AUTHZ_ALL )
&& !( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) )
{
snprintf( msg, msize,
"%s: inconsistent idassert configuration "
"(likely authz=\"*\" used with \"non-prescriptive\" flag)",
log );
Debug( LDAP_DEBUG_ANY, "%s (target %s)\n",
msg, mt->mt_uri, 0 );
return 1;
}
if ( !( mt->mt_idassert_flags & LDAP_BACK_AUTH_AUTHZ_ALL ) )
{
mi->mi_flags &= ~META_BACK_F_PROXYAUTHZ_ANON;
}
if ( ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) )
{
mi->mi_flags &= ~META_BACK_F_PROXYAUTHZ_NOANON;
}
BER_BVZERO( &mapped );
ldap_back_map( &mt->mt_rwmap.rwm_at,
&slap_schema.si_ad_entryDN->ad_cname, &mapped,
BACKLDAP_REMAP );
if ( BER_BVISNULL( &mapped ) || mapped.bv_val[0] == '\0' ) {
mt->mt_rep_flags |= REP_NO_ENTRYDN;
}
BER_BVZERO( &mapped );
ldap_back_map( &mt->mt_rwmap.rwm_at,
&slap_schema.si_ad_subschemaSubentry->ad_cname, &mapped,
BACKLDAP_REMAP );
if ( BER_BVISNULL( &mapped ) || mapped.bv_val[0] == '\0' ) {
mt->mt_rep_flags |= REP_NO_SUBSCHEMA;
}
return 0;
}
int
meta_back_db_open(
Backend *be,
ConfigReply *cr )
{
metainfo_t *mi = (metainfo_t *)be->be_private;
char msg[SLAP_TEXT_BUFLEN];
int i, rc;
if ( mi->mi_ntargets == 0 ) {
/* Dynamically added, nothing to check here until
* some targets get added
*/
if ( slapMode & SLAP_SERVER_RUNNING )
return 0;
Debug( LDAP_DEBUG_ANY,
"meta_back_db_open: no targets defined\n",
0, 0, 0 );
return 1;
}
for ( i = 0; i < mi->mi_ntargets; i++ ) {
metatarget_t *mt = mi->mi_targets[ i ];
if ( meta_target_finish( mi, mt,
"meta_back_db_open", msg, sizeof( msg )))
return 1;
}
return 0;
}
/*
* meta_back_conn_free()
*
* actually frees a connection; the reference count must be 0,
* and it must not (or no longer) be in the cache.
*/
void
meta_back_conn_free(
void *v_mc )
{
metaconn_t *mc = v_mc;
int ntargets;
assert( mc != NULL );
assert( mc->mc_refcnt == 0 );
/* at least one must be present... */
ntargets = mc->mc_info->mi_ntargets;
assert( ntargets > 0 );
for ( ; ntargets--; ) {
(void)meta_clear_one_candidate( NULL, mc, ntargets );
}
if ( !BER_BVISNULL( &mc->mc_local_ndn ) ) {
free( mc->mc_local_ndn.bv_val );
}
free( mc );
}
static void
mapping_free(
void *v_mapping )
{
struct ldapmapping *mapping = v_mapping;
ch_free( mapping->src.bv_val );
ch_free( mapping->dst.bv_val );
ch_free( mapping );
}
static void
mapping_dst_free(
void *v_mapping )
{
struct ldapmapping *mapping = v_mapping;
if ( BER_BVISEMPTY( &mapping->dst ) ) {
mapping_free( &mapping[ -1 ] );
}
}
void
meta_back_map_free( struct ldapmap *lm )
{
avl_free( lm->remap, mapping_dst_free );
avl_free( lm->map, mapping_free );
lm->remap = NULL;
lm->map = NULL;
}
static void
target_free(
metatarget_t *mt )
{
if ( mt->mt_uri ) {
free( mt->mt_uri );
ldap_pvt_thread_mutex_destroy( &mt->mt_uri_mutex );
}
if ( mt->mt_subtree ) {
meta_subtree_destroy( mt->mt_subtree );
mt->mt_subtree = NULL;
}
if ( mt->mt_filter ) {
meta_filter_destroy( mt->mt_filter );
mt->mt_filter = NULL;
}
if ( !BER_BVISNULL( &mt->mt_psuffix ) ) {
free( mt->mt_psuffix.bv_val );
}
if ( !BER_BVISNULL( &mt->mt_nsuffix ) ) {
free( mt->mt_nsuffix.bv_val );
}
if ( !BER_BVISNULL( &mt->mt_binddn ) ) {
free( mt->mt_binddn.bv_val );
}
if ( !BER_BVISNULL( &mt->mt_bindpw ) ) {
free( mt->mt_bindpw.bv_val );
}
if ( !BER_BVISNULL( &mt->mt_idassert_authcID ) ) {
ch_free( mt->mt_idassert_authcID.bv_val );
}
if ( !BER_BVISNULL( &mt->mt_idassert_authcDN ) ) {
ch_free( mt->mt_idassert_authcDN.bv_val );
}
if ( !BER_BVISNULL( &mt->mt_idassert_passwd ) ) {
ch_free( mt->mt_idassert_passwd.bv_val );
}
if ( !BER_BVISNULL( &mt->mt_idassert_authzID ) ) {
ch_free( mt->mt_idassert_authzID.bv_val );
}
if ( !BER_BVISNULL( &mt->mt_idassert_sasl_mech ) ) {
ch_free( mt->mt_idassert_sasl_mech.bv_val );
}
if ( !BER_BVISNULL( &mt->mt_idassert_sasl_realm ) ) {
ch_free( mt->mt_idassert_sasl_realm.bv_val );
}
if ( mt->mt_idassert_authz != NULL ) {
ber_bvarray_free( mt->mt_idassert_authz );
}
if ( mt->mt_rwmap.rwm_rw ) {
rewrite_info_delete( &mt->mt_rwmap.rwm_rw );
if ( mt->mt_rwmap.rwm_bva_rewrite )
ber_bvarray_free( mt->mt_rwmap.rwm_bva_rewrite );
}
meta_back_map_free( &mt->mt_rwmap.rwm_oc );
meta_back_map_free( &mt->mt_rwmap.rwm_at );
ber_bvarray_free( mt->mt_rwmap.rwm_bva_map );
free( mt );
}
int
meta_back_db_destroy(
Backend *be,
ConfigReply *cr )
{
metainfo_t *mi;
if ( be->be_private ) {
int i;
mi = ( metainfo_t * )be->be_private;
/*
* Destroy the connection tree
*/
ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
if ( mi->mi_conninfo.lai_tree ) {
avl_free( mi->mi_conninfo.lai_tree, meta_back_conn_free );
}
for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
while ( !LDAP_TAILQ_EMPTY( &mi->mi_conn_priv[ i ].mic_priv ) ) {
metaconn_t *mc = LDAP_TAILQ_FIRST( &mi->mi_conn_priv[ i ].mic_priv );
LDAP_TAILQ_REMOVE( &mi->mi_conn_priv[ i ].mic_priv, mc, mc_q );
meta_back_conn_free( mc );
}
}
/*
* Destroy the per-target stuff (assuming there's at
* least one ...)
*/
if ( mi->mi_targets != NULL ) {
for ( i = 0; i < mi->mi_ntargets; i++ ) {
metatarget_t *mt = mi->mi_targets[ i ];
if ( META_BACK_TGT_QUARANTINE( mt ) ) {
if ( mt->mt_quarantine.ri_num != mi->mi_quarantine.ri_num )
{
mi->mi_ldap_extra->retry_info_destroy( &mt->mt_quarantine );
}
ldap_pvt_thread_mutex_destroy( &mt->mt_quarantine_mutex );
}
target_free( mt );
}
free( mi->mi_targets );
}
ldap_pvt_thread_mutex_lock( &mi->mi_cache.mutex );
if ( mi->mi_cache.tree ) {
avl_free( mi->mi_cache.tree, meta_dncache_free );
}
ldap_pvt_thread_mutex_unlock( &mi->mi_cache.mutex );
ldap_pvt_thread_mutex_destroy( &mi->mi_cache.mutex );
ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
ldap_pvt_thread_mutex_destroy( &mi->mi_conninfo.lai_mutex );
if ( mi->mi_candidates != NULL ) {
ber_memfree_x( mi->mi_candidates, NULL );
}
if ( META_BACK_QUARANTINE( mi ) ) {
mi->mi_ldap_extra->retry_info_destroy( &mi->mi_quarantine );
}
}
free( be->be_private );
return 0;
}
#if SLAPD_META == SLAPD_MOD_DYNAMIC
/* conditionally define the init_module() function */
SLAP_BACKEND_INIT_MODULE( meta )
#endif /* SLAPD_META == SLAPD_MOD_DYNAMIC */