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/* abandon.c - decode and handle an ldap abandon operation */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2018 The OpenLDAP Foundation.
* 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
* <http://www.OpenLDAP.org/license.html>.
*/
/* Portions Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/socket.h>
#include "slap.h"
int
do_abandon( Operation *op, SlapReply *rs )
{
ber_int_t id;
Operation *o;
const char *msg;
Debug( LDAP_DEBUG_TRACE, "%s do_abandon\n",
op->o_log_prefix, 0, 0 );
/*
* Parse the abandon request. It looks like this:
*
* AbandonRequest := MessageID
*/
if ( ber_scanf( op->o_ber, "i", &id ) == LBER_ERROR ) {
Debug( LDAP_DEBUG_ANY, "%s do_abandon: ber_scanf failed\n",
op->o_log_prefix, 0, 0 );
send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
return SLAPD_DISCONNECT;
}
Statslog( LDAP_DEBUG_STATS, "%s ABANDON msg=%ld\n",
op->o_log_prefix, (long) id, 0, 0, 0 );
if( get_ctrls( op, rs, 0 ) != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "%s do_abandon: get_ctrls failed\n",
op->o_log_prefix, 0, 0 );
return rs->sr_err;
}
Debug( LDAP_DEBUG_ARGS, "%s do_abandon: id=%ld\n",
op->o_log_prefix, (long) id, 0 );
if( id <= 0 ) {
Debug( LDAP_DEBUG_ANY, "%s do_abandon: bad msgid %ld\n",
op->o_log_prefix, (long) id, 0 );
return LDAP_SUCCESS;
}
ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
/* Find the operation being abandoned. */
LDAP_STAILQ_FOREACH( o, &op->o_conn->c_ops, o_next ) {
if ( o->o_msgid == id ) {
break;
}
}
if ( o == NULL ) {
msg = "not found";
/* The operation is not active. Just discard it if found. */
LDAP_STAILQ_FOREACH( o, &op->o_conn->c_pending_ops, o_next ) {
if ( o->o_msgid == id ) {
msg = "discarded";
/* FIXME: This traverses c_pending_ops yet again. */
LDAP_STAILQ_REMOVE( &op->o_conn->c_pending_ops,
o, Operation, o_next );
LDAP_STAILQ_NEXT(o, o_next) = NULL;
op->o_conn->c_n_ops_pending--;
slap_op_free( o, NULL );
break;
}
}
} else if ( o->o_tag == LDAP_REQ_BIND
|| o->o_tag == LDAP_REQ_UNBIND
|| o->o_tag == LDAP_REQ_ABANDON ) {
msg = "cannot be abandoned";
#if 0 /* Would break o_abandon used as "suppress response" flag, ITS#6138 */
} else if ( o->o_abandon ) {
msg = "already being abandoned";
#endif
} else {
msg = "found";
/* Set the o_abandon flag in the to-be-abandoned operation.
* The backend can periodically check this flag and abort the
* operation at a convenient time. However it should "send"
* the response anyway, with result code SLAPD_ABANDON.
* The functions in result.c will intercept the message.
*/
o->o_abandon = 1;
op->orn_msgid = id;
op->o_bd = frontendDB;
rs->sr_err = frontendDB->be_abandon( op, rs );
}
ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
Debug( LDAP_DEBUG_TRACE, "%s do_abandon: op=%ld %s\n",
op->o_log_prefix, (long) id, msg );
return rs->sr_err;
}
int
fe_op_abandon( Operation *op, SlapReply *rs )
{
LDAP_STAILQ_FOREACH( op->o_bd, &backendDB, be_next ) {
if ( op->o_bd->be_abandon ) {
(void)op->o_bd->be_abandon( op, rs );
}
}
return LDAP_SUCCESS;
}
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