/*  File ipxwatch.h  : This file contains the data structures  for the IPX
  protocol stack    */


/*
    Copyright (C) 1992 Indian Institute of Technology, Bombay
    Written by V. Srinivas and Vishwas Joglekar,
    Dept of Computer Science and Engineering.

    This program 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 1, or (at your option)
    any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#define MAX_IPX_PKT_SIZE	1500   /* data portion of the IPX packet */
#define MAX_PKT_TYPES	8
#define MAX_SERVERS	7    /* No of servers info b'cast in a single
				server identification packet */
#define	MAX_NETWORKS   7
#define MAX_HOPS      0x0f
#define ETHER_ADDR_LEN 6

/* Socket numbers for novell pkts  */
#define		NETCOREP_SOCK	0x451
#define		SERVADP_SOCK	0x452
#define		ROUTEIPX_SOCK	0x453
#define		NETB_SOCK	0x455      /* Netbios packet  */
#define		DIA_SOCK	0x456      /* diagnostic packet */


/* Novell packet types   */

#define 	NOVLNCP	 0
#define		NOVLSAP	 1
#define		NOVLRIP	 2
#define		NOVLNB	 3
#define		NOVLDIAG 4
#define         NOVLIPX	 5
#define         NOVLSPX  6
#define         NONE     7

#ifndef WORD
#define WORD unsigned short
#endif

#ifndef BYTE
#define BYTE  unsigned char
#endif

/* IPX/Internet address of a node   */
typedef struct{
	BYTE net_id[4];
	BYTE node_id[6];
	BYTE socket[2];  /* high - low */
} INTERNET_ADDRESS;


typedef struct{
	BYTE checksum[2];
	BYTE length[2];   /* IPX packet length : MAX 576 bytes  */
	BYTE transport_control;
	BYTE packet_type;
	INTERNET_ADDRESS dest_node;
	INTERNET_ADDRESS source_node;
} IPX_HEADER;

typedef struct{
	IPX_HEADER header;
	BYTE data[MAX_IPX_PKT_SIZE];
}IPX_PKT;

typedef struct{
	BYTE 	destination[6];
	BYTE    source[6];
	BYTE 	type[2];       /* ether pkt type, 8137 for novell pkts */
	IPX_PKT pkt;
}ETH_IPX;

/* In yapcbr.c & main.c  */

struct	rxstruct {
	ETH_IPX rcv_buffer;	/* packet receive buffer */
	WORD  len; 	/* packet length */
	int rcv_flag; 	/* SET if there is a valid packet in the buffer */
	int dev;  	/* interface/segment on which the packet was received */
};

struct pkt_type_stat{
long   pkt_count; /* no of pkts received */
long   bytes_in; /* no of bytes received */
};