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1333 lines
32 KiB
C
1333 lines
32 KiB
C
/* conn.c - handles connections to remote targets */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2016-2018 The OpenLDAP Foundation.
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* Portions Copyright 2016 Symas Corporation.
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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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/* ACKNOWLEDGEMENTS:
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+ * This work was developed by Symas Corporation
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+ * based on back-meta module for inclusion in OpenLDAP Software.
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+ * This work was sponsored by Ericsson. */
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#include "portable.h"
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#include <stdio.h>
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#include <ac/errno.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#define AVL_INTERNAL
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#include "slap.h"
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#include "../back-ldap/back-ldap.h"
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#include "back-asyncmeta.h"
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/*
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* Debug stuff (got it from libavl)
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*/
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#if META_BACK_PRINT_CONNTREE > 0
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static void
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asyncmeta_back_ravl_print( Avlnode *root, int depth )
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{
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int i;
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if ( root == 0 ) {
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return;
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}
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asyncmeta_back_ravl_print( root->avl_right, depth + 1 );
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for ( i = 0; i < depth; i++ ) {
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fprintf( stderr, "-" );
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}
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fputc( ' ', stderr );
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asyncmeta_back_print( (a_metaconn_t *)root->avl_data,
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avl_bf2str( root->avl_bf ) );
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asyncmeta_back_ravl_print( root->avl_left, depth + 1 );
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}
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/* NOTE: duplicate from back-ldap/bind.c */
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static char* priv2str[] = {
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"privileged",
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"privileged/TLS",
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"anonymous",
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"anonymous/TLS",
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"bind",
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"bind/TLS",
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NULL
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};
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#endif /* META_BACK_PRINT_CONNTREE */
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/*
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* End of debug stuff
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*/
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/*
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* asyncmeta_conn_alloc
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*
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* Allocates a connection structure, making room for all the referenced targets
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*/
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static a_metaconn_t *
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asyncmeta_conn_alloc(
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a_metainfo_t *mi)
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{
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a_metaconn_t *mc;
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int ntargets = mi->mi_ntargets;
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assert( ntargets > 0 );
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/* malloc all in one */
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mc = ( a_metaconn_t * )ch_calloc( 1, sizeof( a_metaconn_t ) + ntargets * sizeof( a_metasingleconn_t ));
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if ( mc == NULL ) {
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return NULL;
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}
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mc->mc_info = mi;
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ldap_pvt_thread_mutex_init( &mc->mc_om_mutex);
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mc->mc_authz_target = META_BOUND_NONE;
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mc->mc_conns = (a_metasingleconn_t *)(mc+1);
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return mc;
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}
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/*
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* asyncmeta_init_one_conn
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*
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* Initializes one connection
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*/
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int
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asyncmeta_init_one_conn(
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Operation *op,
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SlapReply *rs,
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a_metaconn_t *mc,
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int candidate,
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int ispriv,
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ldap_back_send_t sendok,
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int dolock)
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{
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a_metainfo_t *mi = mc->mc_info;
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a_metatarget_t *mt = mi->mi_targets[ candidate ];
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a_metasingleconn_t *msc = NULL;
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int version;
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a_dncookie dc;
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int isauthz = ( candidate == mc->mc_authz_target );
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int do_return = 0;
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int nretries = 2;
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#ifdef HAVE_TLS
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int is_ldaps = 0;
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int do_start_tls = 0;
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#endif /* HAVE_TLS */
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/* if the server is quarantined, and
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* - the current interval did not expire yet, or
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* - no more retries should occur,
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* don't return the connection */
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if ( mt->mt_isquarantined ) {
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slap_retry_info_t *ri = &mt->mt_quarantine;
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int dont_retry = 0;
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if ( mt->mt_quarantine.ri_interval ) {
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ldap_pvt_thread_mutex_lock( &mt->mt_quarantine_mutex );
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dont_retry = ( mt->mt_isquarantined > LDAP_BACK_FQ_NO );
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if ( dont_retry ) {
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dont_retry = ( ri->ri_num[ ri->ri_idx ] == SLAP_RETRYNUM_TAIL
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|| slap_get_time() < ri->ri_last + ri->ri_interval[ ri->ri_idx ] );
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if ( !dont_retry ) {
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if ( LogTest( LDAP_DEBUG_ANY ) ) {
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char buf[ SLAP_TEXT_BUFLEN ];
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snprintf( buf, sizeof( buf ),
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"asyncmeta_init_one_conn[%d]: quarantine "
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"retry block #%d try #%d",
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candidate, ri->ri_idx, ri->ri_count );
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Debug( LDAP_DEBUG_ANY, "%s %s.\n",
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op->o_log_prefix, buf, 0 );
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}
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mt->mt_isquarantined = LDAP_BACK_FQ_RETRYING;
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}
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}
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ldap_pvt_thread_mutex_unlock( &mt->mt_quarantine_mutex );
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}
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if ( dont_retry ) {
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rs->sr_err = LDAP_UNAVAILABLE;
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if ( op->o_conn && ( sendok & LDAP_BACK_SENDERR ) ) {
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rs->sr_text = "Target is quarantined";
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send_ldap_result( op, rs );
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}
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return rs->sr_err;
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}
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}
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msc = &mc->mc_conns[candidate];
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retry_lock:;
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/*
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* Already init'ed
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*/
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if ( LDAP_BACK_CONN_ISBOUND( msc )
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|| LDAP_BACK_CONN_ISANON( msc ) )
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{
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assert( msc->msc_ld != NULL );
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rs->sr_err = LDAP_SUCCESS;
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do_return = 1;
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} else if ( META_BACK_CONN_CREATING( msc )
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|| LDAP_BACK_CONN_BINDING( msc ) )
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{
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/* sounds more appropriate */
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if (nretries >= 0) {
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nretries--;
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ldap_pvt_thread_yield();
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goto retry_lock;
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}
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rs->sr_err = LDAP_UNAVAILABLE;
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do_return = 1;
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} else if ( META_BACK_CONN_INITED( msc ) ) {
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assert( msc->msc_ld != NULL );
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rs->sr_err = LDAP_SUCCESS;
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do_return = 1;
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} else {
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/*
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* creating...
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*/
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META_BACK_CONN_CREATING_SET( msc );
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}
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if ( do_return ) {
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if ( rs->sr_err != LDAP_SUCCESS
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&& op->o_conn
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&& ( sendok & LDAP_BACK_SENDERR ) )
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{
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send_ldap_result( op, rs );
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}
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return rs->sr_err;
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}
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assert( msc->msc_ld == NULL );
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/*
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* Attempts to initialize the connection to the target ds
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*/
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ldap_pvt_thread_mutex_lock( &mt->mt_uri_mutex );
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rs->sr_err = ldap_initialize( &msc->msc_ld, mt->mt_uri );
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#ifdef HAVE_TLS
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is_ldaps = ldap_is_ldaps_url( mt->mt_uri );
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#endif /* HAVE_TLS */
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ldap_pvt_thread_mutex_unlock( &mt->mt_uri_mutex );
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if ( rs->sr_err != LDAP_SUCCESS ) {
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goto error_return;
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}
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msc->msc_ldr = ldap_dup(msc->msc_ld);
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if (!msc->msc_ldr) {
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ldap_ld_free(msc->msc_ld, 0, NULL, NULL);
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rs->sr_err = LDAP_NO_MEMORY;
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goto error_return;
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}
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/*
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* Set LDAP version. This will always succeed: If the client
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* bound with a particular version, then so can we.
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*/
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if ( mt->mt_version != 0 ) {
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version = mt->mt_version;
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} else if ( op->o_conn->c_protocol != 0 ) {
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version = op->o_conn->c_protocol;
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} else {
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version = LDAP_VERSION3;
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}
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ldap_set_option( msc->msc_ld, LDAP_OPT_PROTOCOL_VERSION, &version );
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ldap_set_urllist_proc( msc->msc_ld, mt->mt_urllist_f, mt->mt_urllist_p );
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/* automatically chase referrals ("chase-referrals [{yes|no}]" statement) */
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ldap_set_option( msc->msc_ld, LDAP_OPT_REFERRALS,
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META_BACK_TGT_CHASE_REFERRALS( mt ) ? LDAP_OPT_ON : LDAP_OPT_OFF );
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slap_client_keepalive(msc->msc_ld, &mt->mt_tls.sb_keepalive);
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#ifdef HAVE_TLS
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{
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slap_bindconf *sb = NULL;
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if ( ispriv ) {
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sb = &mt->mt_idassert.si_bc;
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} else {
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sb = &mt->mt_tls;
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}
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if ( sb->sb_tls_do_init ) {
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bindconf_tls_set( sb, msc->msc_ld );
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} else if ( sb->sb_tls_ctx ) {
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ldap_set_option( msc->msc_ld, LDAP_OPT_X_TLS_CTX, sb->sb_tls_ctx );
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}
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if ( !is_ldaps ) {
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if ( sb == &mt->mt_idassert.si_bc && sb->sb_tls_ctx ) {
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do_start_tls = 1;
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} else if ( META_BACK_TGT_USE_TLS( mt )
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|| ( op->o_conn->c_is_tls && META_BACK_TGT_PROPAGATE_TLS( mt ) ) )
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{
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do_start_tls = 1;
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}
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}
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}
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/* start TLS ("tls [try-]{start|propagate}" statement) */
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if ( do_start_tls ) {
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#ifdef SLAP_STARTTLS_ASYNCHRONOUS
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/*
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* use asynchronous StartTLS; in case, chase referral
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* FIXME: OpenLDAP does not return referral on StartTLS yet
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*/
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int msgid;
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rs->sr_err = ldap_start_tls( msc->msc_ld, NULL, NULL, &msgid );
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if ( rs->sr_err == LDAP_SUCCESS ) {
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LDAPMessage *res = NULL;
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int rc, nretries = mt->mt_nretries;
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struct timeval tv;
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LDAP_BACK_TV_SET( &tv );
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retry:;
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rc = ldap_result( msc->msc_ld, msgid, LDAP_MSG_ALL, &tv, &res );
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switch ( rc ) {
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case -1:
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rs->sr_err = LDAP_OTHER;
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break;
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case 0:
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if ( nretries != 0 ) {
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if ( nretries > 0 ) {
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nretries--;
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}
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LDAP_BACK_TV_SET( &tv );
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goto retry;
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}
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rs->sr_err = LDAP_OTHER;
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break;
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default:
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/* only touch when activity actually took place... */
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if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) {
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msc->msc_time = op->o_time;
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}
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break;
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}
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if ( rc == LDAP_RES_EXTENDED ) {
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struct berval *data = NULL;
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/* NOTE: right now, data is unused, so don't get it */
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rs->sr_err = ldap_parse_extended_result( msc->msc_ld,
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res, NULL, NULL /* &data */ , 0 );
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if ( rs->sr_err == LDAP_SUCCESS ) {
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int err;
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/* FIXME: matched? referrals? response controls? */
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rs->sr_err = ldap_parse_result( msc->msc_ld,
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res, &err, NULL, NULL, NULL, NULL, 1 );
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res = NULL;
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if ( rs->sr_err == LDAP_SUCCESS ) {
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rs->sr_err = err;
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}
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rs->sr_err = slap_map_api2result( rs );
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/* FIXME: in case a referral
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* is returned, should we try
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* using it instead of the
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* configured URI? */
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if ( rs->sr_err == LDAP_SUCCESS ) {
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ldap_install_tls( msc->msc_ld );
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} else if ( rs->sr_err == LDAP_REFERRAL ) {
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/* FIXME: LDAP_OPERATIONS_ERROR? */
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "Unwilling to chase referral "
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"returned by Start TLS exop";
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}
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if ( data ) {
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ber_bvfree( data );
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}
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}
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} else {
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rs->sr_err = LDAP_OTHER;
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}
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if ( res != NULL ) {
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ldap_msgfree( res );
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}
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}
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#else /* ! SLAP_STARTTLS_ASYNCHRONOUS */
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/*
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* use synchronous StartTLS
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*/
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rs->sr_err = ldap_start_tls_s( msc->msc_ld, NULL, NULL );
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#endif /* ! SLAP_STARTTLS_ASYNCHRONOUS */
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/* if StartTLS is requested, only attempt it if the URL
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* is not "ldaps://"; this may occur not only in case
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* of misconfiguration, but also when used in the chain
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* overlay, where the "uri" can be parsed out of a referral */
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if ( rs->sr_err == LDAP_SERVER_DOWN
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|| ( rs->sr_err != LDAP_SUCCESS
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&& META_BACK_TGT_TLS_CRITICAL( mt ) ) )
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{
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#ifdef DEBUG_205
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Debug( LDAP_DEBUG_ANY,
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"### %s asyncmeta_init_one_conn(TLS) "
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"ldap_unbind_ext[%d] ld=%p\n",
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op->o_log_prefix, candidate,
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(void *)msc->msc_ld );
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#endif /* DEBUG_205 */
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goto error_return;
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}
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}
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#endif /* HAVE_TLS */
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|
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/*
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* Set the network timeout if set
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*/
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if ( mt->mt_network_timeout != 0 ) {
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struct timeval network_timeout;
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network_timeout.tv_usec = 0;
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network_timeout.tv_sec = mt->mt_network_timeout;
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ldap_set_option( msc->msc_ld, LDAP_OPT_NETWORK_TIMEOUT,
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(void *)&network_timeout );
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}
|
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|
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/*
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* If the connection DN is not null, an attempt to rewrite it is made
|
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*/
|
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|
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if ( ispriv ) {
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if ( !BER_BVISNULL( &mt->mt_idassert_authcDN ) ) {
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ber_bvreplace( &msc->msc_bound_ndn, &mt->mt_idassert_authcDN );
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if ( !BER_BVISNULL( &mt->mt_idassert_passwd ) ) {
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if ( !BER_BVISNULL( &msc->msc_cred ) ) {
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memset( msc->msc_cred.bv_val, 0,
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msc->msc_cred.bv_len );
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}
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ber_bvreplace( &msc->msc_cred, &mt->mt_idassert_passwd );
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}
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LDAP_BACK_CONN_ISIDASSERT_SET( msc );
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|
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} else {
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ber_bvreplace( &msc->msc_bound_ndn, &slap_empty_bv );
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}
|
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|
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} else {
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if ( !BER_BVISNULL( &msc->msc_cred ) ) {
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memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len );
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ber_memfree_x( msc->msc_cred.bv_val, NULL );
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BER_BVZERO( &msc->msc_cred );
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}
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if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
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ber_memfree_x( msc->msc_bound_ndn.bv_val, NULL );
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BER_BVZERO( &msc->msc_bound_ndn );
|
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}
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if ( !BER_BVISEMPTY( &op->o_ndn )
|
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&& SLAP_IS_AUTHZ_BACKEND( op )
|
|
&& isauthz )
|
|
{
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dc.target = mt;
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dc.conn = op->o_conn;
|
|
dc.rs = rs;
|
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dc.ctx = "bindDN";
|
|
|
|
/*
|
|
* Rewrite the bind dn if needed
|
|
*/
|
|
if ( asyncmeta_dn_massage( &dc, &op->o_conn->c_dn,
|
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&msc->msc_bound_ndn ) )
|
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{
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|
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#ifdef DEBUG_205
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"### %s asyncmeta_init_one_conn(rewrite) "
|
|
"ldap_unbind_ext[%d] ld=%p\n",
|
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op->o_log_prefix, candidate,
|
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(void *)msc->msc_ld );
|
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#endif /* DEBUG_205 */
|
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goto error_return;
|
|
}
|
|
|
|
/* copy the DN if needed */
|
|
if ( msc->msc_bound_ndn.bv_val == op->o_conn->c_dn.bv_val ) {
|
|
ber_dupbv( &msc->msc_bound_ndn, &op->o_conn->c_dn );
|
|
}
|
|
|
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assert( !BER_BVISNULL( &msc->msc_bound_ndn ) );
|
|
|
|
} else {
|
|
ber_dupbv( &msc->msc_bound_ndn, (struct berval *)&slap_empty_bv );
|
|
}
|
|
}
|
|
assert( !BER_BVISNULL( &msc->msc_bound_ndn ) );
|
|
|
|
error_return:;
|
|
|
|
if (msc != NULL) {
|
|
META_BACK_CONN_CREATING_CLEAR( msc );
|
|
}
|
|
if ( rs->sr_err == LDAP_SUCCESS && msc != NULL) {
|
|
/*
|
|
* Sets a cookie for the rewrite session
|
|
*/
|
|
( void )rewrite_session_init( mt->mt_rwmap.rwm_rw, op->o_conn );
|
|
META_BACK_CONN_INITED_SET( msc );
|
|
}
|
|
|
|
if ( rs->sr_err != LDAP_SUCCESS ) {
|
|
rs->sr_err = slap_map_api2result( rs );
|
|
if ( sendok & LDAP_BACK_SENDERR ) {
|
|
send_ldap_result( op, rs );
|
|
}
|
|
}
|
|
return rs->sr_err;
|
|
}
|
|
|
|
/*
|
|
* asyncmeta_retry
|
|
*
|
|
* Retries one connection
|
|
*/
|
|
int
|
|
asyncmeta_retry(
|
|
Operation *op,
|
|
SlapReply *rs,
|
|
a_metaconn_t **mcp,
|
|
int candidate,
|
|
ldap_back_send_t sendok )
|
|
{
|
|
a_metaconn_t *mc = *mcp;
|
|
a_metainfo_t *mi = mc->mc_info;
|
|
a_metatarget_t *mt = mi->mi_targets[ candidate ];
|
|
a_metasingleconn_t *msc = &mc->mc_conns[ candidate ];
|
|
int rc = LDAP_UNAVAILABLE,
|
|
binding,
|
|
quarantine = 1;
|
|
|
|
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex );
|
|
struct berval save_cred;
|
|
|
|
if ( LogTest( LDAP_DEBUG_ANY ) ) {
|
|
char buf[ SLAP_TEXT_BUFLEN ];
|
|
|
|
/* this lock is required; however,
|
|
* it's invoked only when logging is on */
|
|
ldap_pvt_thread_mutex_lock( &mt->mt_uri_mutex );
|
|
snprintf( buf, sizeof( buf ),
|
|
"retrying URI=\"%s\" DN=\"%s\"",
|
|
mt->mt_uri,
|
|
BER_BVISNULL( &msc->msc_bound_ndn ) ?
|
|
"" : msc->msc_bound_ndn.bv_val );
|
|
ldap_pvt_thread_mutex_unlock( &mt->mt_uri_mutex );
|
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"%s asyncmeta_retry[%d]: %s.\n",
|
|
op->o_log_prefix, candidate, buf );
|
|
}
|
|
|
|
( void )rewrite_session_delete( mt->mt_rwmap.rwm_rw, op->o_conn );
|
|
/* mc here must be the regular mc, reset and ready for init */
|
|
rc = asyncmeta_init_one_conn( op, rs, mc, candidate,
|
|
LDAP_BACK_CONN_ISPRIV( mc ), sendok, 0 );
|
|
|
|
if ( rc != LDAP_SUCCESS ) {
|
|
if ( sendok & LDAP_BACK_SENDERR ) {
|
|
/* init_one_conn has set the result */
|
|
send_ldap_result( op, rs );
|
|
}
|
|
}
|
|
|
|
if ( rc == LDAP_SUCCESS ) {
|
|
quarantine = 0;
|
|
LDAP_BACK_CONN_BINDING_SET( msc ); binding = 1;
|
|
/* todo this must be dobind_init */
|
|
rc = asyncmeta_back_single_dobind( op, rs, mcp, candidate,
|
|
sendok, mt->mt_nretries, 0 );
|
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"%s asyncmeta_retry[%d]: "
|
|
"asyncmeta_single_dobind=%d\n",
|
|
op->o_log_prefix, candidate, rc );
|
|
if ( rc == LDAP_SUCCESS ) {
|
|
if ( !BER_BVISNULL( &msc->msc_bound_ndn ) &&
|
|
!BER_BVISEMPTY( &msc->msc_bound_ndn ) )
|
|
{
|
|
LDAP_BACK_CONN_ISBOUND_SET( msc );
|
|
|
|
} else {
|
|
LDAP_BACK_CONN_ISANON_SET( msc );
|
|
}
|
|
|
|
/* when bound, dispose of the "binding" flag */
|
|
if ( binding ) {
|
|
LDAP_BACK_CONN_BINDING_CLEAR( msc );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if ( rc != LDAP_SUCCESS ) {
|
|
if (mc->mc_active < 1) {
|
|
asyncmeta_clear_one_msc(NULL, mc, candidate);
|
|
}
|
|
if ( sendok & LDAP_BACK_SENDERR ) {
|
|
rs->sr_err = rc;
|
|
rs->sr_text = "Unable to retry";
|
|
send_ldap_result( op, rs );
|
|
}
|
|
}
|
|
|
|
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
|
|
if ( quarantine && META_BACK_TGT_QUARANTINE( mt ) ) {
|
|
asyncmeta_quarantine( op, mi, rs, candidate );
|
|
}
|
|
|
|
return rc == LDAP_SUCCESS ? 1 : 0;
|
|
}
|
|
|
|
/*
|
|
* callback for unique candidate selection
|
|
*/
|
|
static int
|
|
asyncmeta_conn_cb( Operation *op, SlapReply *rs )
|
|
{
|
|
assert( op->o_tag == LDAP_REQ_SEARCH );
|
|
|
|
switch ( rs->sr_type ) {
|
|
case REP_SEARCH:
|
|
((long *)op->o_callback->sc_private)[0] = (long)op->o_private;
|
|
break;
|
|
|
|
case REP_SEARCHREF:
|
|
case REP_RESULT:
|
|
break;
|
|
|
|
default:
|
|
return rs->sr_err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
asyncmeta_get_candidate(
|
|
Operation *op,
|
|
SlapReply *rs,
|
|
struct berval *ndn )
|
|
{
|
|
a_metainfo_t *mi = ( a_metainfo_t * )op->o_bd->be_private;
|
|
long candidate;
|
|
|
|
/*
|
|
* tries to get a unique candidate
|
|
* (takes care of default target)
|
|
*/
|
|
candidate = asyncmeta_select_unique_candidate( mi, ndn );
|
|
|
|
/*
|
|
* if any is found, inits the connection
|
|
*/
|
|
if ( candidate == META_TARGET_NONE ) {
|
|
rs->sr_err = LDAP_NO_SUCH_OBJECT;
|
|
rs->sr_text = "No suitable candidate target found";
|
|
|
|
} else if ( candidate == META_TARGET_MULTIPLE ) {
|
|
Operation op2 = *op;
|
|
SlapReply rs2 = { REP_RESULT };
|
|
slap_callback cb2 = { 0 };
|
|
int rc;
|
|
|
|
/* try to get a unique match for the request ndn
|
|
* among the multiple candidates available */
|
|
op2.o_tag = LDAP_REQ_SEARCH;
|
|
op2.o_req_dn = *ndn;
|
|
op2.o_req_ndn = *ndn;
|
|
op2.ors_scope = LDAP_SCOPE_BASE;
|
|
op2.ors_deref = LDAP_DEREF_NEVER;
|
|
op2.ors_attrs = slap_anlist_no_attrs;
|
|
op2.ors_attrsonly = 0;
|
|
op2.ors_limit = NULL;
|
|
op2.ors_slimit = 1;
|
|
op2.ors_tlimit = SLAP_NO_LIMIT;
|
|
|
|
op2.ors_filter = (Filter *)slap_filter_objectClass_pres;
|
|
op2.ors_filterstr = *slap_filterstr_objectClass_pres;
|
|
|
|
op2.o_callback = &cb2;
|
|
cb2.sc_response = asyncmeta_conn_cb;
|
|
cb2.sc_private = (void *)&candidate;
|
|
|
|
rc = op->o_bd->be_search( &op2, &rs2 );
|
|
|
|
switch ( rs2.sr_err ) {
|
|
case LDAP_SUCCESS:
|
|
default:
|
|
rs->sr_err = rs2.sr_err;
|
|
break;
|
|
|
|
case LDAP_SIZELIMIT_EXCEEDED:
|
|
/* if multiple candidates can serve the operation,
|
|
* and a default target is defined, and it is
|
|
* a candidate, try using it (FIXME: YMMV) */
|
|
if ( mi->mi_defaulttarget != META_DEFAULT_TARGET_NONE
|
|
&& asyncmeta_is_candidate( mi->mi_targets[ mi->mi_defaulttarget ],
|
|
ndn, op->o_tag == LDAP_REQ_SEARCH ? op->ors_scope : LDAP_SCOPE_BASE ) )
|
|
{
|
|
candidate = mi->mi_defaulttarget;
|
|
rs->sr_err = LDAP_SUCCESS;
|
|
rs->sr_text = NULL;
|
|
|
|
} else {
|
|
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
|
|
rs->sr_text = "Unable to select unique candidate target";
|
|
}
|
|
break;
|
|
}
|
|
|
|
} else {
|
|
rs->sr_err = LDAP_SUCCESS;
|
|
}
|
|
|
|
return candidate;
|
|
}
|
|
|
|
static void *asyncmeta_candidates_dummy;
|
|
|
|
static void
|
|
asyncmeta_candidates_keyfree(
|
|
void *key,
|
|
void *data )
|
|
{
|
|
a_metacandidates_t *mc = (a_metacandidates_t *)data;
|
|
|
|
ber_memfree_x( mc->mc_candidates, NULL );
|
|
ber_memfree_x( data, NULL );
|
|
}
|
|
|
|
|
|
/*
|
|
* asyncmeta_getconn
|
|
*
|
|
* Prepares the connection structure
|
|
*
|
|
* RATIONALE:
|
|
*
|
|
* - determine what DN is being requested:
|
|
*
|
|
* op requires candidate checks
|
|
*
|
|
* add unique parent of o_req_ndn
|
|
* bind unique^*[/all] o_req_ndn [no check]
|
|
* compare unique^+ o_req_ndn
|
|
* delete unique o_req_ndn
|
|
* modify unique o_req_ndn
|
|
* search any o_req_ndn
|
|
* modrdn unique[, unique] o_req_ndn[, orr_nnewSup]
|
|
*
|
|
* - for ops that require the candidate to be unique, in case of multiple
|
|
* occurrences an internal search with sizeLimit=1 is performed
|
|
* if a unique candidate can actually be determined. If none is found,
|
|
* the operation aborts; if multiple are found, the default target
|
|
* is used if defined and candidate; otherwise the operation aborts.
|
|
*
|
|
* *^note: actually, the bind operation is handled much like a search;
|
|
* i.e. the bind is broadcast to all candidate targets.
|
|
*
|
|
* +^note: actually, the compare operation is handled much like a search;
|
|
* i.e. the compare is broadcast to all candidate targets, while checking
|
|
* that exactly none (noSuchObject) or one (TRUE/FALSE/UNDEFINED) is
|
|
* returned.
|
|
*/
|
|
a_metaconn_t *
|
|
asyncmeta_getconn(
|
|
Operation *op,
|
|
SlapReply *rs,
|
|
SlapReply *candidates,
|
|
int *candidate,
|
|
ldap_back_send_t sendok,
|
|
int alloc_new)
|
|
{
|
|
a_metainfo_t *mi = ( a_metainfo_t * )op->o_bd->be_private;
|
|
a_metaconn_t *mc = NULL,
|
|
mc_curr = {{ 0 }};
|
|
int cached = META_TARGET_NONE,
|
|
i = META_TARGET_NONE,
|
|
err = LDAP_SUCCESS,
|
|
new_conn = 0,
|
|
ncandidates = 0;
|
|
|
|
|
|
meta_op_type op_type = META_OP_REQUIRE_SINGLE;
|
|
enum {
|
|
META_DNTYPE_ENTRY,
|
|
META_DNTYPE_PARENT,
|
|
META_DNTYPE_NEWPARENT
|
|
} dn_type = META_DNTYPE_ENTRY;
|
|
struct berval ndn = op->o_req_ndn,
|
|
pndn;
|
|
|
|
if (alloc_new > 0) {
|
|
mc = asyncmeta_conn_alloc(mi);
|
|
new_conn = 0;
|
|
} else {
|
|
mc = asyncmeta_get_next_mc(mi);
|
|
}
|
|
|
|
ldap_pvt_thread_mutex_lock(&mc->mc_om_mutex);
|
|
/* Internal searches are privileged and shared. So is root. */
|
|
if ( ( !BER_BVISEMPTY( &op->o_ndn ) && META_BACK_PROXYAUTHZ_ALWAYS( mi ) )
|
|
|| ( BER_BVISEMPTY( &op->o_ndn ) && META_BACK_PROXYAUTHZ_ANON( mi ) )
|
|
|| op->o_do_not_cache || be_isroot( op ) )
|
|
{
|
|
LDAP_BACK_CONN_ISPRIV_SET( &mc_curr );
|
|
LDAP_BACK_PCONN_ROOTDN_SET( &mc_curr, op );
|
|
|
|
} else if ( BER_BVISEMPTY( &op->o_ndn ) && META_BACK_PROXYAUTHZ_NOANON( mi ) )
|
|
{
|
|
LDAP_BACK_CONN_ISANON_SET( &mc_curr );
|
|
LDAP_BACK_PCONN_ANON_SET( &mc_curr, op );
|
|
|
|
} else {
|
|
/* Explicit binds must not be shared */
|
|
if ( !BER_BVISEMPTY( &op->o_ndn )
|
|
|| op->o_tag == LDAP_REQ_BIND
|
|
|| SLAP_IS_AUTHZ_BACKEND( op ) )
|
|
{
|
|
//mc_curr.mc_conn = op->o_conn;
|
|
|
|
} else {
|
|
LDAP_BACK_CONN_ISANON_SET( &mc_curr );
|
|
LDAP_BACK_PCONN_ANON_SET( &mc_curr, op );
|
|
}
|
|
}
|
|
|
|
switch ( op->o_tag ) {
|
|
case LDAP_REQ_ADD:
|
|
/* if we go to selection, the entry must not exist,
|
|
* and we must be able to resolve the parent */
|
|
dn_type = META_DNTYPE_PARENT;
|
|
dnParent( &ndn, &pndn );
|
|
break;
|
|
|
|
case LDAP_REQ_MODRDN:
|
|
/* if nnewSuperior is not NULL, it must resolve
|
|
* to the same candidate as the req_ndn */
|
|
if ( op->orr_nnewSup ) {
|
|
dn_type = META_DNTYPE_NEWPARENT;
|
|
}
|
|
break;
|
|
|
|
case LDAP_REQ_BIND:
|
|
/* if bound as rootdn, the backend must bind to all targets
|
|
* with the administrative identity
|
|
* (unless pseoudoroot-bind-defer is TRUE) */
|
|
if ( op->orb_method == LDAP_AUTH_SIMPLE && be_isroot_pw( op ) ) {
|
|
op_type = META_OP_REQUIRE_ALL;
|
|
}
|
|
break;
|
|
|
|
case LDAP_REQ_COMPARE:
|
|
case LDAP_REQ_DELETE:
|
|
case LDAP_REQ_MODIFY:
|
|
/* just a unique candidate */
|
|
break;
|
|
|
|
case LDAP_REQ_SEARCH:
|
|
/* allow multiple candidates for the searchBase */
|
|
op_type = META_OP_ALLOW_MULTIPLE;
|
|
break;
|
|
|
|
default:
|
|
/* right now, just break (exop?) */
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* require all connections ...
|
|
*/
|
|
if ( op_type == META_OP_REQUIRE_ALL ) {
|
|
if ( LDAP_BACK_CONN_ISPRIV( &mc_curr ) ) {
|
|
LDAP_BACK_CONN_ISPRIV_SET( mc );
|
|
|
|
} else if ( LDAP_BACK_CONN_ISANON( &mc_curr ) ) {
|
|
LDAP_BACK_CONN_ISANON_SET( mc );
|
|
}
|
|
|
|
for ( i = 0; i < mi->mi_ntargets; i++ ) {
|
|
/*
|
|
* The target is activated; if needed, it is
|
|
* also init'd
|
|
*/
|
|
candidates[ i ].sr_err = asyncmeta_init_one_conn( op,
|
|
rs, mc, i, LDAP_BACK_CONN_ISPRIV( &mc_curr ),
|
|
LDAP_BACK_DONTSEND, !new_conn );
|
|
if ( candidates[ i ].sr_err == LDAP_SUCCESS ) {
|
|
if ( new_conn && ( sendok & LDAP_BACK_BINDING ) ) {
|
|
LDAP_BACK_CONN_BINDING_SET( &mc->mc_conns[ i ] );
|
|
}
|
|
META_CANDIDATE_SET( &candidates[ i ] );
|
|
ncandidates++;
|
|
|
|
} else {
|
|
|
|
/*
|
|
* FIXME: in case one target cannot
|
|
* be init'd, should the other ones
|
|
* be tried?
|
|
*/
|
|
META_CANDIDATE_RESET( &candidates[ i ] );
|
|
err = candidates[ i ].sr_err;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if ( ncandidates == 0 ) {
|
|
rs->sr_err = LDAP_NO_SUCH_OBJECT;
|
|
rs->sr_text = "Unable to select valid candidates";
|
|
|
|
if ( sendok & LDAP_BACK_SENDERR ) {
|
|
if ( rs->sr_err == LDAP_NO_SUCH_OBJECT ) {
|
|
rs->sr_matched = op->o_bd->be_suffix[ 0 ].bv_val;
|
|
}
|
|
send_ldap_result( op, rs );
|
|
rs->sr_matched = NULL;
|
|
}
|
|
ldap_pvt_thread_mutex_unlock(&mc->mc_om_mutex);
|
|
if ( alloc_new > 0) {
|
|
asyncmeta_back_conn_free( mc );
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
goto done;
|
|
}
|
|
|
|
/*
|
|
* looks in cache, if any
|
|
*/
|
|
if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED ) {
|
|
cached = i = asyncmeta_dncache_get_target( &mi->mi_cache, &op->o_req_ndn );
|
|
}
|
|
|
|
if ( op_type == META_OP_REQUIRE_SINGLE ) {
|
|
a_metatarget_t *mt = NULL;
|
|
a_metasingleconn_t *msc = NULL;
|
|
|
|
int j;
|
|
|
|
for ( j = 0; j < mi->mi_ntargets; j++ ) {
|
|
META_CANDIDATE_RESET( &candidates[ j ] );
|
|
}
|
|
|
|
/*
|
|
* tries to get a unique candidate
|
|
* (takes care of default target)
|
|
*/
|
|
if ( i == META_TARGET_NONE ) {
|
|
i = asyncmeta_get_candidate( op, rs, &ndn );
|
|
|
|
if ( rs->sr_err == LDAP_NO_SUCH_OBJECT && dn_type == META_DNTYPE_PARENT ) {
|
|
i = asyncmeta_get_candidate( op, rs, &pndn );
|
|
}
|
|
|
|
if ( i < 0 || rs->sr_err != LDAP_SUCCESS ) {
|
|
if ( sendok & LDAP_BACK_SENDERR ) {
|
|
if ( rs->sr_err == LDAP_NO_SUCH_OBJECT ) {
|
|
rs->sr_matched = op->o_bd->be_suffix[ 0 ].bv_val;
|
|
}
|
|
send_ldap_result( op, rs );
|
|
rs->sr_matched = NULL;
|
|
}
|
|
ldap_pvt_thread_mutex_unlock(&mc->mc_om_mutex);
|
|
if ( mc != NULL && alloc_new ) {
|
|
asyncmeta_back_conn_free( mc );
|
|
}
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if ( dn_type == META_DNTYPE_NEWPARENT && asyncmeta_get_candidate( op, rs, op->orr_nnewSup ) != i )
|
|
{
|
|
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
|
|
rs->sr_text = "Cross-target rename not supported";
|
|
if ( sendok & LDAP_BACK_SENDERR ) {
|
|
send_ldap_result( op, rs );
|
|
}
|
|
ldap_pvt_thread_mutex_unlock(&mc->mc_om_mutex);
|
|
if ( mc != NULL && alloc_new > 0 ) {
|
|
asyncmeta_back_conn_free( mc );
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
"==>asyncmeta__getconn: got target=%d for ndn=\"%s\" from cache\n",
|
|
i, op->o_req_ndn.bv_val, 0 );
|
|
if ( LDAP_BACK_CONN_ISPRIV( &mc_curr ) ) {
|
|
LDAP_BACK_CONN_ISPRIV_SET( mc );
|
|
|
|
} else if ( LDAP_BACK_CONN_ISANON( &mc_curr ) ) {
|
|
LDAP_BACK_CONN_ISANON_SET( mc );
|
|
}
|
|
|
|
/*
|
|
* Clear all other candidates
|
|
*/
|
|
( void )asyncmeta_clear_unused_candidates( op, i , mc, candidates);
|
|
|
|
mt = mi->mi_targets[ i ];
|
|
msc = &mc->mc_conns[ i ];
|
|
|
|
/*
|
|
* The target is activated; if needed, it is
|
|
* also init'd. In case of error, asyncmeta_init_one_conn
|
|
* sends the appropriate result.
|
|
*/
|
|
err = asyncmeta_init_one_conn( op, rs, mc, i,
|
|
LDAP_BACK_CONN_ISPRIV( &mc_curr ), sendok, !new_conn );
|
|
if ( err != LDAP_SUCCESS ) {
|
|
/*
|
|
* FIXME: in case one target cannot
|
|
* be init'd, should the other ones
|
|
* be tried?
|
|
*/
|
|
META_CANDIDATE_RESET( &candidates[ i ] );
|
|
ldap_pvt_thread_mutex_unlock(&mc->mc_om_mutex);
|
|
if ( mc != NULL && alloc_new > 0 ) {
|
|
asyncmeta_back_conn_free( mc );
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
candidates[ i ].sr_err = LDAP_SUCCESS;
|
|
META_CANDIDATE_SET( &candidates[ i ] );
|
|
ncandidates++;
|
|
|
|
if ( candidate ) {
|
|
*candidate = i;
|
|
}
|
|
|
|
/*
|
|
* if no unique candidate ...
|
|
*/
|
|
} else {
|
|
if ( LDAP_BACK_CONN_ISPRIV( &mc_curr ) ) {
|
|
LDAP_BACK_CONN_ISPRIV_SET( mc );
|
|
|
|
} else if ( LDAP_BACK_CONN_ISANON( &mc_curr ) ) {
|
|
LDAP_BACK_CONN_ISANON_SET( mc );
|
|
}
|
|
|
|
for ( i = 0; i < mi->mi_ntargets; i++ ) {
|
|
a_metatarget_t *mt = mi->mi_targets[ i ];
|
|
|
|
META_CANDIDATE_RESET( &candidates[ i ] );
|
|
|
|
if ( i == cached
|
|
|| asyncmeta_is_candidate( mt, &op->o_req_ndn,
|
|
op->o_tag == LDAP_REQ_SEARCH ? op->ors_scope : LDAP_SCOPE_SUBTREE ) )
|
|
{
|
|
|
|
/*
|
|
* The target is activated; if needed, it is
|
|
* also init'd
|
|
*/
|
|
int lerr = asyncmeta_init_one_conn( op, rs, mc, i,
|
|
LDAP_BACK_CONN_ISPRIV( &mc_curr ),
|
|
LDAP_BACK_DONTSEND, !new_conn );
|
|
candidates[ i ].sr_err = lerr;
|
|
if ( lerr == LDAP_SUCCESS ) {
|
|
META_CANDIDATE_SET( &candidates[ i ] );
|
|
ncandidates++;
|
|
|
|
Debug( LDAP_DEBUG_TRACE, "%s: asyncmeta_getconn[%d]\n",
|
|
op->o_log_prefix, i, 0 );
|
|
|
|
} else if ( lerr == LDAP_UNAVAILABLE && !META_BACK_ONERR_STOP( mi ) ) {
|
|
META_CANDIDATE_SET( &candidates[ i ] );
|
|
|
|
Debug( LDAP_DEBUG_TRACE, "%s: asyncmeta_getconn[%d] %s\n",
|
|
op->o_log_prefix, i,
|
|
mt->mt_isquarantined != LDAP_BACK_FQ_NO ? "quarantined" : "unavailable" );
|
|
|
|
} else {
|
|
|
|
/*
|
|
* FIXME: in case one target cannot
|
|
* be init'd, should the other ones
|
|
* be tried?
|
|
*/
|
|
/* leave the target candidate, but record the error for later use */
|
|
err = lerr;
|
|
|
|
if ( lerr == LDAP_UNAVAILABLE && mt->mt_isquarantined != LDAP_BACK_FQ_NO ) {
|
|
Debug( LDAP_DEBUG_TRACE, "%s: asyncmeta_getconn[%d] quarantined err=%d\n",
|
|
op->o_log_prefix, i, lerr );
|
|
|
|
} else {
|
|
Debug( LDAP_DEBUG_ANY, "%s: asyncmeta_getconn[%d] failed err=%d\n",
|
|
op->o_log_prefix, i, lerr );
|
|
}
|
|
|
|
if ( META_BACK_ONERR_STOP( mi ) ) {
|
|
if ( sendok & LDAP_BACK_SENDERR ) {
|
|
send_ldap_result( op, rs );
|
|
}
|
|
ldap_pvt_thread_mutex_unlock(&mc->mc_om_mutex);
|
|
if ( alloc_new > 0 ) {
|
|
asyncmeta_back_conn_free( mc );
|
|
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
if ( ncandidates == 0 ) {
|
|
if ( rs->sr_err == LDAP_SUCCESS ) {
|
|
rs->sr_err = LDAP_NO_SUCH_OBJECT;
|
|
rs->sr_text = "Unable to select valid candidates";
|
|
}
|
|
|
|
if ( sendok & LDAP_BACK_SENDERR ) {
|
|
if ( rs->sr_err == LDAP_NO_SUCH_OBJECT ) {
|
|
rs->sr_matched = op->o_bd->be_suffix[ 0 ].bv_val;
|
|
}
|
|
send_ldap_result( op, rs );
|
|
rs->sr_matched = NULL;
|
|
}
|
|
if ( alloc_new > 0 ) {
|
|
asyncmeta_back_conn_free( mc );
|
|
|
|
}
|
|
ldap_pvt_thread_mutex_unlock(&mc->mc_om_mutex);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
done:;
|
|
/* clear out meta_back_init_one_conn non-fatal errors */
|
|
rs->sr_err = LDAP_SUCCESS;
|
|
rs->sr_text = NULL;
|
|
|
|
if ( new_conn ) {
|
|
if ( !LDAP_BACK_PCONN_ISPRIV( mc ) ) {
|
|
/*
|
|
* Err could be -1 in case a duplicate metaconn is inserted
|
|
*/
|
|
switch ( err ) {
|
|
case 0:
|
|
break;
|
|
default:
|
|
LDAP_BACK_CONN_CACHED_CLEAR( mc );
|
|
if ( LogTest( LDAP_DEBUG_ANY ) ) {
|
|
char buf[STRLENOF("4294967295U") + 1] = { 0 };
|
|
mi->mi_ldap_extra->connid2str( &mc->mc_base, buf, sizeof(buf) );
|
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"%s asyncmeta_getconn: candidates=%d conn=%s insert failed\n",
|
|
op->o_log_prefix, ncandidates, buf );
|
|
}
|
|
|
|
asyncmeta_back_conn_free( mc );
|
|
|
|
rs->sr_err = LDAP_OTHER;
|
|
rs->sr_text = "Proxy bind collision";
|
|
if ( sendok & LDAP_BACK_SENDERR ) {
|
|
send_ldap_result( op, rs );
|
|
}
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if ( LogTest( LDAP_DEBUG_TRACE ) ) {
|
|
char buf[STRLENOF("4294967295U") + 1] = { 0 };
|
|
mi->mi_ldap_extra->connid2str( &mc->mc_base, buf, sizeof(buf) );
|
|
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
"%s asyncmeta_getconn: candidates=%d conn=%s inserted\n",
|
|
op->o_log_prefix, ncandidates, buf );
|
|
}
|
|
|
|
} else {
|
|
if ( LogTest( LDAP_DEBUG_TRACE ) ) {
|
|
char buf[STRLENOF("4294967295U") + 1] = { 0 };
|
|
mi->mi_ldap_extra->connid2str( &mc->mc_base, buf, sizeof(buf) );
|
|
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
"%s asyncmeta_getconn: candidates=%d conn=%s fetched\n",
|
|
op->o_log_prefix, ncandidates, buf );
|
|
}
|
|
}
|
|
ldap_pvt_thread_mutex_unlock(&mc->mc_om_mutex);
|
|
return mc;
|
|
}
|
|
|
|
void
|
|
asyncmeta_quarantine(
|
|
Operation *op,
|
|
a_metainfo_t *mi,
|
|
SlapReply *rs,
|
|
int candidate )
|
|
{
|
|
a_metatarget_t *mt = mi->mi_targets[ candidate ];
|
|
|
|
slap_retry_info_t *ri = &mt->mt_quarantine;
|
|
|
|
ldap_pvt_thread_mutex_lock( &mt->mt_quarantine_mutex );
|
|
|
|
if ( rs->sr_err == LDAP_UNAVAILABLE ) {
|
|
time_t new_last = slap_get_time();
|
|
|
|
switch ( mt->mt_isquarantined ) {
|
|
case LDAP_BACK_FQ_NO:
|
|
if ( ri->ri_last == new_last ) {
|
|
goto done;
|
|
}
|
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"%s asyncmeta_quarantine[%d]: enter.\n",
|
|
op->o_log_prefix, candidate, 0 );
|
|
|
|
ri->ri_idx = 0;
|
|
ri->ri_count = 0;
|
|
break;
|
|
|
|
case LDAP_BACK_FQ_RETRYING:
|
|
if ( LogTest( LDAP_DEBUG_ANY ) ) {
|
|
char buf[ SLAP_TEXT_BUFLEN ];
|
|
|
|
snprintf( buf, sizeof( buf ),
|
|
"asyncmeta_quarantine[%d]: block #%d try #%d failed",
|
|
candidate, ri->ri_idx, ri->ri_count );
|
|
Debug( LDAP_DEBUG_ANY, "%s %s.\n",
|
|
op->o_log_prefix, buf, 0 );
|
|
}
|
|
|
|
++ri->ri_count;
|
|
if ( ri->ri_num[ ri->ri_idx ] != SLAP_RETRYNUM_FOREVER
|
|
&& ri->ri_count == ri->ri_num[ ri->ri_idx ] )
|
|
{
|
|
ri->ri_count = 0;
|
|
++ri->ri_idx;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
mt->mt_isquarantined = LDAP_BACK_FQ_YES;
|
|
ri->ri_last = new_last;
|
|
|
|
} else if ( mt->mt_isquarantined == LDAP_BACK_FQ_RETRYING ) {
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"%s asyncmeta_quarantine[%d]: exit.\n",
|
|
op->o_log_prefix, candidate, 0 );
|
|
|
|
if ( mi->mi_quarantine_f ) {
|
|
(void)mi->mi_quarantine_f( mi, candidate,
|
|
mi->mi_quarantine_p );
|
|
}
|
|
|
|
ri->ri_count = 0;
|
|
ri->ri_idx = 0;
|
|
mt->mt_isquarantined = LDAP_BACK_FQ_NO;
|
|
mt->mt_timeout_ops = 0;
|
|
}
|
|
|
|
done:;
|
|
ldap_pvt_thread_mutex_unlock( &mt->mt_quarantine_mutex );
|
|
}
|
|
|
|
a_metaconn_t *
|
|
asyncmeta_get_next_mc( a_metainfo_t *mi )
|
|
{
|
|
a_metaconn_t *mc = NULL;
|
|
ldap_pvt_thread_mutex_lock( &mi->mi_mc_mutex );
|
|
if (mi->mi_next_conn >= mi->mi_num_conns-1) {
|
|
mi->mi_next_conn = 0;
|
|
} else {
|
|
mi->mi_next_conn++;
|
|
}
|
|
|
|
mc = &mi->mi_conns[mi->mi_next_conn];
|
|
ldap_pvt_thread_mutex_unlock( &mi->mi_mc_mutex );
|
|
return mc;
|
|
}
|
|
|
|
int asyncmeta_start_listeners(a_metaconn_t *mc, SlapReply *candidates, bm_context_t *bc)
|
|
{
|
|
int i;
|
|
for (i = 0; i < mc->mc_info->mi_ntargets; i++) {
|
|
asyncmeta_start_one_listener(mc, candidates, bc, i);
|
|
}
|
|
return LDAP_SUCCESS;
|
|
}
|
|
|
|
int asyncmeta_start_one_listener(a_metaconn_t *mc,
|
|
SlapReply *candidates,
|
|
bm_context_t *bc,
|
|
int candidate)
|
|
{
|
|
a_metasingleconn_t *msc;
|
|
ber_socket_t s;
|
|
int i;
|
|
|
|
msc = &mc->mc_conns[candidate];
|
|
if (msc->msc_ld == NULL || !META_IS_CANDIDATE( &candidates[ candidate ] )) {
|
|
return LDAP_SUCCESS;
|
|
}
|
|
bc->msgids[candidate] = candidates[candidate].sr_msgid;
|
|
msc->msc_pending_ops++;
|
|
if ( msc->conn == NULL) {
|
|
ldap_get_option( msc->msc_ld, LDAP_OPT_DESC, &s );
|
|
if (s < 0) {
|
|
/* Todo a meaningful log pls */
|
|
return LDAP_OTHER;
|
|
}
|
|
msc->conn = connection_client_setup( s, asyncmeta_op_handle_result, mc );
|
|
}
|
|
connection_client_enable( msc->conn );
|
|
return LDAP_SUCCESS;
|
|
}
|