75 lines
2 KiB
C
75 lines
2 KiB
C
/*******************************************************************/
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/* Copyright(c) 1993 Microsoft Corporation */
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/*******************************************************************/
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//***
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//
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// Filename: packet.h
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//
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// Description: Contains general definitions for the ipx and rip packets
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//
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// Author: Stefan Solomon (stefans) October 4, 1993.
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//
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// Revision History:
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//
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//***
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#ifndef _PACKET_
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#define _PACKET_
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//*** Socket Numbers
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#define IPX_RIP_SOCKET (USHORT)0x453
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//*** Packet Types
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#define IPX_RIP_TYPE 1 // RIP request/reply packet
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//*** RIP Operations
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#define RIP_REQUEST (USHORT)1
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#define RIP_RESPONSE (USHORT)2
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//*** Offsets into the IPX header
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#define IPXH_HDRSIZE 30 // Size of the IPX header
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#define IPXH_CHECKSUM 0 // Checksum
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#define IPXH_LENGTH 2 // Length
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#define IPXH_XPORTCTL 4 // Transport Control
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#define IPXH_PKTTYPE 5 // Packet Type
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#define IPXH_DESTADDR 6 // Dest. Address (Total)
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#define IPXH_DESTNET 6 // Dest. Network Address
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#define IPXH_DESTNODE 10 // Dest. Node Address
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#define IPXH_DESTSOCK 16 // Dest. Socket Number
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#define IPXH_SRCADDR 18 // Source Address (Total)
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#define IPXH_SRCNET 18 // Source Network Address
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#define IPXH_SRCNODE 22 // Source Node Address
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#define IPXH_SRCSOCK 28 // Source Socket Number
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#define IPX_NET_LEN 4
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#define IPX_NODE_LEN 6
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//*** RIP Operation Field Offset
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#define RIP_OPCODE 30 // rip operation code offset
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//*** Network entry structure in the RIP request/response
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#define RIP_INFO 32 // first network entry offset in the rip packet
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#define NE_ENTRYSIZE 8 // 4 network + 2 hops + 2 ticks
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#define NE_NETNUMBER 0 // network number offset
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#define NE_NROFHOPS 4 // number of hops offset
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#define NE_NROFTICKS 6 // number of ticks offset
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//*** maximum nr of hops for a normal packet ***
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#define IPX_MAX_HOPS 16
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//*** define max RIP packet size
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#define RIP_PACKET_LEN 432
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#define MAX_PACKET_LEN 1500
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#endif
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