mirror of
https://git.openldap.org/openldap/openldap.git
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137 lines
2.7 KiB
C
137 lines
2.7 KiB
C
/* $OpenLDAP$ */
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/* cancel.c - LDAP cancel extended operation */
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/*
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* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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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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#ifdef LDAP_EXOP_X_CANCEL
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#include <lber_pvt.h>
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#include <lutil.h>
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int cancel_extop(
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Connection *conn,
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Operation *op,
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const char *reqoid,
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struct berval *reqdata,
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char **rspoid,
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struct berval **rspdata,
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LDAPControl ***rspctrls,
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const char **text,
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BerVarray *refs )
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{
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Backend *be;
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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( reqoid != NULL );
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assert( strcmp( LDAP_EXOP_X_CANCEL, reqoid ) == 0 );
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if ( reqdata == NULL ) {
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*text = "no message ID supplied";
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return LDAP_PROTOCOL_ERROR;
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}
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ber = ber_init( reqdata );
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if ( ber == NULL ) {
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*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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*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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*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( &conn->c_mutex );
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LDAP_STAILQ_FOREACH( op, &conn->c_pending_ops, o_next ) {
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if ( op->o_msgid == opid ) {
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LDAP_STAILQ_REMOVE( &conn->c_pending_ops, op, slap_op, o_next );
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slap_op_free( op );
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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( &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( &conn->c_mutex );
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LDAP_STAILQ_FOREACH( op, &conn->c_ops, o_next ) {
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if ( op->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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#ifdef LDAP_SYNC
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for ( i = 0; i < nbackends; i++ ) {
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Backend *be = &backends[i];
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if( !be->be_cancel ) continue;
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ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
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if ( be->be_cancel( be, conn, op, opid ) == LDAP_SUCCESS ) {
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return LDAP_SUCCESS;
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} else {
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*text = "message ID not found";
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return LDAP_NO_SUCH_OPERATION;
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}
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}
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#else
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ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
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*text = "message ID not found";
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return LDAP_NO_SUCH_OPERATION;
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#endif
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}
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if ( op->o_cancel != SLAP_CANCEL_NONE ) {
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ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
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*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( &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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#endif /* LDAP_EXOP_X_CANCEL */
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