windows-server-2003/net/tcpip/services/telnet/server/tlntsvr/ipc.h

//Copyright (c) Microsoft Corporation.  All rights reserved.
#ifndef _IPC_H_
#define _IPC_H_


#define IPC_HEADER_SIZE             ( sizeof( UCHAR ) + sizeof( DWORD ) )

//These messages are from session to server
#define SESSION_EXIT                '0'
#define SOCKET_HANDOVER_COMPLETE    '1'
#define AUDIT_CLIENT                '2'
#define SESSION_DETAILS             '3'
#define LICENSE_AVAILABLE           '4'
#define LICENSE_NOT_AVAILABLE       '5'
#define TLNTSVR_SHUTDOWN            '6'
#define SYSTEM_SHUTDOWN             '7'
#define OPERATOR_MESSAGE            '8'
#define UPDATE_IDLE_TIME            '9'
#define RESET_IDLE_TIME             'A'

//These messages are from server to session

#define GO_DOWN                     '0'

//The following is a message sent by service call back thread to IPC handling
//thread

#define MAX_PIPE_BUFFER 1024
#define NET_BUF_SIZ 2048
#define MAX_WRITE_SOCKET_BUFFER 4096
#define MAX_READ_SOCKET_BUFFER  1024

#endif _IPC_H_