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142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
/* abandon.c - decode and handle an ldap abandon 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 1998-2019 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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/* Portions Copyright (c) 1995 Regents of the University of Michigan.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and that due credit is given
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* to the University of Michigan at Ann Arbor. The name of the University
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* may not be used to endorse or promote products derived from this
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* software without specific prior written permission. This software
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* is provided ``as is'' without express or implied warranty.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/socket.h>
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#include "slap.h"
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int
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do_abandon( Operation *op, SlapReply *rs )
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{
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ber_int_t id;
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Operation *o;
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const char *msg;
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Debug( LDAP_DEBUG_TRACE, "%s do_abandon\n",
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op->o_log_prefix );
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/*
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* Parse the abandon request. It looks like this:
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*
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* AbandonRequest := MessageID
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*/
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if ( ber_scanf( op->o_ber, "i", &id ) == LBER_ERROR ) {
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Debug( LDAP_DEBUG_ANY, "%s do_abandon: ber_scanf failed\n",
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op->o_log_prefix );
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send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
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return SLAPD_DISCONNECT;
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}
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Debug( LDAP_DEBUG_STATS, "%s ABANDON msg=%ld\n",
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op->o_log_prefix, (long) id );
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if( get_ctrls( op, rs, 0 ) != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_ANY, "%s do_abandon: get_ctrls failed\n",
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op->o_log_prefix );
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return rs->sr_err;
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}
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Debug( LDAP_DEBUG_ARGS, "%s do_abandon: id=%ld\n",
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op->o_log_prefix, (long) id );
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if( id <= 0 ) {
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Debug( LDAP_DEBUG_ANY, "%s do_abandon: bad msgid %ld\n",
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op->o_log_prefix, (long) id );
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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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/* Find the operation being abandoned. */
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LDAP_STAILQ_FOREACH( o, &op->o_conn->c_ops, o_next ) {
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if ( o->o_msgid == id ) {
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break;
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}
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}
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if ( o == NULL ) {
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msg = "not found";
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/* The operation is not active. Just discard it if found. */
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LDAP_STAILQ_FOREACH( o, &op->o_conn->c_pending_ops, o_next ) {
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if ( o->o_msgid == id ) {
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msg = "discarded";
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/* FIXME: This traverses c_pending_ops yet again. */
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LDAP_STAILQ_REMOVE( &op->o_conn->c_pending_ops,
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o, Operation, 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, NULL );
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break;
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}
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}
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} else if ( o->o_tag == LDAP_REQ_BIND
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|| o->o_tag == LDAP_REQ_UNBIND
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|| o->o_tag == LDAP_REQ_ABANDON ) {
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msg = "cannot be abandoned";
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#if 0 /* Would break o_abandon used as "suppress response" flag, ITS#6138 */
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} else if ( o->o_abandon ) {
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msg = "already being abandoned";
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#endif
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} else {
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msg = "found";
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/* Set the o_abandon flag in the to-be-abandoned operation.
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* The backend can periodically check this flag and abort the
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* operation at a convenient time. However it should "send"
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* the response anyway, with result code SLAPD_ABANDON.
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* The functions in result.c will intercept the message.
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*/
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o->o_abandon = 1;
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op->orn_msgid = id;
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op->o_bd = frontendDB;
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rs->sr_err = frontendDB->be_abandon( op, rs );
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}
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ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
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Debug( LDAP_DEBUG_TRACE, "%s do_abandon: op=%ld %s\n",
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op->o_log_prefix, (long) id, msg );
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return rs->sr_err;
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}
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int
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fe_op_abandon( Operation *op, SlapReply *rs )
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{
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LDAP_STAILQ_FOREACH( op->o_bd, &backendDB, be_next ) {
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if ( op->o_bd->be_abandon ) {
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(void)op->o_bd->be_abandon( op, rs );
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}
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}
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return LDAP_SUCCESS;
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}
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