82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
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/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Definitions for the IP protocol.
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*
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* Version: @(#)ip.h 1.0.2 04/28/93
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*
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* Authors: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _LINUX_IP_H
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#define _LINUX_IP_H
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#define IPOPT_END 0
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#define IPOPT_NOOP 1
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#define IPOPT_SEC 130
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#define IPOPT_LSRR 131
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#define IPOPT_SSRR 137
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#define IPOPT_RR 7
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#define IPOPT_SID 136
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#define IPOPT_TIMESTAMP 68
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struct timestamp {
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unsigned char len;
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unsigned char ptr;
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union {
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unsigned char flags:4,
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overflow:4;
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unsigned char full_char;
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} x;
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unsigned long data[9];
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};
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#define MAX_ROUTE 16
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struct route {
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char route_size;
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char pointer;
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unsigned long route[MAX_ROUTE];
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};
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struct options {
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struct route record_route;
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struct route loose_route;
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struct route strict_route;
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struct timestamp tstamp;
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unsigned short security;
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unsigned short compartment;
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unsigned short handling;
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unsigned short stream;
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unsigned tcc;
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};
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struct iphdr {
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unsigned char ihl:4,
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version:4;
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unsigned char tos;
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unsigned short tot_len;
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unsigned short id;
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unsigned short frag_off;
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unsigned char ttl;
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unsigned char protocol;
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unsigned short check;
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unsigned long saddr;
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unsigned long daddr;
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/*The options start here. */
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};
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#endif /* _LINUX_IP_H */
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