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130 lines
3.0 KiB
C
130 lines
3.0 KiB
C
/* cancel.c - LDAP cancel extended operation */
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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 1998-2004 The OpenLDAP Foundation.
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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/krb.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/unistd.h>
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#include "slap.h"
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#include <lber_pvt.h>
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#include <lutil.h>
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int cancel_extop( Operation *op, SlapReply *rs )
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{
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Operation *o;
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int rc;
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int found = 0;
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int opid;
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BerElement *ber;
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int i;
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assert( ber_bvcmp( &slap_EXOP_CANCEL, &op->ore_reqoid ) == 0 );
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if ( op->ore_reqdata == NULL ) {
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rs->sr_text = "no message ID supplied";
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return LDAP_PROTOCOL_ERROR;
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}
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ber = ber_init( op->ore_reqdata );
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if ( ber == NULL ) {
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rs->sr_text = "internal error";
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return LDAP_OTHER;
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}
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if ( ber_scanf( ber, "{i}", &opid ) == LBER_ERROR ) {
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rs->sr_text = "message ID parse failed";
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return LDAP_PROTOCOL_ERROR;
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}
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(void) ber_free( ber, 1 );
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if ( opid < 0 ) {
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rs->sr_text = "message ID invalid";
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return LDAP_PROTOCOL_ERROR;
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}
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ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
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LDAP_STAILQ_FOREACH( o, &op->o_conn->c_pending_ops, o_next ) {
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if ( o->o_msgid == opid ) {
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LDAP_STAILQ_REMOVE( &op->o_conn->c_pending_ops, o, slap_op, o_next );
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LDAP_STAILQ_NEXT(o, o_next) = NULL;
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op->o_conn->c_n_ops_pending--;
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slap_op_free( o );
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found = 1;
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break;
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}
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}
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ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
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if ( found ) return LDAP_SUCCESS;
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found = 0;
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ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
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LDAP_STAILQ_FOREACH( o, &op->o_conn->c_ops, o_next ) {
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if ( o->o_msgid == opid ) {
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found = 1;
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break;
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}
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}
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if ( !found ) {
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for ( i = 0; i < nbackends; i++ ) {
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op->o_bd = &backends[i];
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if( !op->o_bd->be_cancel ) continue;
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ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
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op->oq_cancel.rs_msgid = opid;
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if ( op->o_bd->be_cancel( op, rs ) == LDAP_SUCCESS ) {
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return LDAP_SUCCESS;
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}
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ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
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}
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ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
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rs->sr_text = "message ID not found";
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return LDAP_NO_SUCH_OPERATION;
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}
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if ( op->o_cancel != SLAP_CANCEL_NONE ) {
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ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
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rs->sr_text = "message ID already being cancelled";
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return LDAP_PROTOCOL_ERROR;
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}
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op->o_cancel = SLAP_CANCEL_REQ;
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ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
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while ( op->o_cancel == SLAP_CANCEL_REQ ) {
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ldap_pvt_thread_yield();
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}
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if ( op->o_cancel == SLAP_CANCEL_ACK ) {
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rc = LDAP_SUCCESS;
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} else {
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rc = op->o_cancel;
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}
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op->o_cancel = SLAP_CANCEL_DONE;
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return rc;
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}
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