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CnC_Remastered_Collection/TIBERIANDAWN/IPX.H

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//
// Copyright 2020 Electronic Arts Inc.
//
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
// software: you can redistribute it and/or modify it under the terms of
// the GNU General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
// in the hope that it will be useful, but with permitted additional restrictions
// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
// distributed with this program. You should have received a copy of the
// GNU General Public License along with permitted additional restrictions
// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
/* $Header: F:\projects\c&c\vcs\code\ipx.h_v 2.17 16 Oct 1995 16:46:26 JOE_BOSTIC $ */
/***************************************************************************
** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S **
***************************************************************************
* *
* Project Name : Command & Conquer *
* *
* File Name : IPX.H *
* *
* Programmer : Barry Nance *
* from Client/Server LAN Programming *
* Westwood-ized by Bill Randolph *
* *
* Start Date : December 14, 1994 *
* *
* Last Update : December 14, 1994 [BR] *
* *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#ifndef IPX_H
#define IPX_H
/*
******************************** Structures *********************************
*/
typedef unsigned char NetNumType[4];
typedef unsigned char NetNodeType[6];
typedef char UserID[48];
/*---------------------------------------------------------------------------
This is the IPX Packet structure. It's followed by the data itself, which
can be up to 546 bytes long. Annotation of 'IPX' means IPX will set this
field; annotation of 'APP' means the application must set the field.
NOTE: All header fields are ordered high-byte,low-byte.
---------------------------------------------------------------------------*/
typedef struct IPXHEADER {
unsigned short CheckSum; // IPX: Not used; always 0xffff
unsigned short Length; // IPX: Total size, incl header & data
unsigned char TransportControl; // IPX: # bridges message crossed
unsigned char PacketType; // APP: Set to 4 for IPX (5 for SPX)
unsigned char DestNetworkNumber[4]; // APP: destination Network Number
unsigned char DestNetworkNode[6]; // APP: destination Node Address
unsigned short DestNetworkSocket; // APP: destination Socket Number
unsigned char SourceNetworkNumber[4]; // IPX: source Network Number
unsigned char SourceNetworkNode[6]; // IPX: source Node Address
unsigned short SourceNetworkSocket; // IPX: source Socket Number
} IPXHeaderType;
/*---------------------------------------------------------------------------
This is the IPX Event Control Block. It serves as a communications area
between IPX and the application for a single IPX operation. You should set
up a separate ECB for each IPX operation you perform.
---------------------------------------------------------------------------*/
typedef struct ECB {
void *Link_Address;
void (*Event_Service_Routine)(void); // APP: event handler (NULL=none)
unsigned char InUse; // IPX: 0 = event complete
unsigned char CompletionCode; // IPX: event's return code
unsigned short SocketNumber; // APP: socket to send data through
unsigned short ConnectionID; // returned by Listen (???)
unsigned short RestOfWorkspace;
unsigned char DriverWorkspace[12];
unsigned char ImmediateAddress[6]; // returned by Get_Local_Target
unsigned short PacketCount;
struct {
void *Address;
unsigned short Length;
} Packet[2];
} ECBType;
/*---------------------------------------------------------------------------
This structure is used for calling DPMI function 0x300, Call-Real-Mode-
Interrupt. It passes register values to & from the interrupt handler.
---------------------------------------------------------------------------*/
typedef struct {
long edi;
long esi;
long ebp;
long Reserved;
long ebx;
long edx;
long ecx;
long eax;
short Flags;
short es;
short ds;
short fs;
short gs;
short ip;
short cs;
short sp;
short ss;
} RMIType;
/*
********************************** Defines **********************************
*/
/*---------------------------------------------------------------------------
These defines are for the IPX functions. The function number is specified
by placing it in BX when IPX is called. There are two ways to invoke IPX:
use interrupt 0x7a, or use a function whose address is obtained by calling
interrupt 0x2f with AX=0x7a00; the function address is returned in ES:DI.
This is the preferred method, since other apps are known to use int 0x7a.
---------------------------------------------------------------------------*/
#define IPX_OPEN_SOCKET 0x0000
#define IPX_CLOSE_SOCKET 0x0001
#define IPX_GET_LOCAL_TARGET 0x0002
#define IPX_SEND_PACKET 0x0003
#define IPX_LISTEN_FOR_PACKET 0x0004
#define IPX_SCHEDULE_EVENT 0x0005
#define IPX_CANCEL_EVENT 0x0006
#define IPX_GET_INTERVAL_MARKER 0x0008
#define IPX_GET_INTERNETWORK_ADDRESS 0x0009
#define IPX_RELINQUISH_CONTROL 0x000A
#define IPX_DISCONNECT_FROM_TARGET 0x000B
/*---------------------------------------------------------------------------
These defines are for various IPX error codes:
---------------------------------------------------------------------------*/
#define IPXERR_CONNECTION_SEVERED 0x00ec
#define IPXERR_CONNECTION_FAILED 0x00ed
#define IPXERR_NO_CONNECTION 0x00ee
#define IPXERR_CONNECTION_TABLE_FULL 0x00ef
#define IPXERR_NO_CANCEL_ECB 0x00f9
#define IPXERR_NO_PATH 0x00fa
#define IPXERR_ECB_INACTIVE 0x00fc
#define IPXERR_INVALID_PACKET_LENGTH 0x00fd
#define IPXERR_SOCKET_TABLE_FULL 0x00fe
#define IPXERR_SOCKET_ERROR 0x00ff
/*---------------------------------------------------------------------------
These defines are for various interrupt vectors and DPMI functions:
---------------------------------------------------------------------------*/
#define IPX_INT 0x007a
#define DPMI_INT 0x0031
#define DPMI_ALLOC_DOS_MEM 0x0100
#define DPMI_FREE_DOS_MEM 0x0101
#define DPMI_CALL_REAL_INT 0x0300
#define DPMI_LOCK_MEM 0x0600
#define DPMI_UNLOCK_MEM 0x0601
/*
******************************** Prototypes *********************************
*/
/*---------------------------------------------------------------------------
NOTE: All routines return 0 for a success code and one of the above IPX
error codes if there's an error, EXCEPT:
- IPX_SPX_Installed (0 = not installed)
- Get_Connection_Number / Get_1st_Connection_Number (0 = no connection)
---------------------------------------------------------------------------*/
/*
.................................. ipx.cpp ..................................
*/
int IPX_SPX_Installed(void);
int IPX_Open_Socket(unsigned short socket);
int IPX_Close_Socket(unsigned short socket);
int IPX_Get_Connection_Number(void);
int IPX_Get_1st_Connection_Num (char *username);
int IPX_Get_Internet_Address(int connection_number,
unsigned char *network_number, unsigned char *physical_node);
int IPX_Get_User_ID(int connection_number, char *user_id);
int IPX_Listen_For_Packet(struct ECB *ecb_ptr);
void IPX_Send_Packet(struct ECB *ecb_ptr);
int IPX_Get_Local_Target(unsigned char *dest_network, unsigned char *dest_node,
unsigned short dest_socket, unsigned char *bridge_address);
int IPX_Cancel_Event(struct ECB *ecb_ptr);
void Let_IPX_Breath(void);
#endif
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