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/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* Definitions for the IP protocol.
*
* Version: @(#)ip.h 1.0.2 04/28/93
*
* Authors: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
*
* 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
* 2 of the License, or (at your option) any later version.
*/
#ifndef _LINUX_IP_H
#define _LINUX_IP_H
#include <asm/byteorder.h>
#define IPOPT_END 0
#define IPOPT_NOOP 1
#define IPOPT_SEC 130
#define IPOPT_LSRR 131
#define IPOPT_SSRR 137
#define IPOPT_RR 7
#define IPOPT_SID 136
#define IPOPT_TIMESTAMP 68
#define MAXTTL 255
struct timestamp {
__u8 len;
__u8 ptr;
union {
#if defined(LITTLE_ENDIAN_BITFIELD)
__u8 flags:4,
overflow:4;
#elif defined(BIG_ENDIAN_BITFIELD)
__u8 overflow:4,
flags:4;
#else
#error "Please fix <asm/byteorder.h>"
#endif
__u8 full_char;
} x;
__u32 data[9];
};
#define MAX_ROUTE 16
struct route {
char route_size;
char pointer;
unsigned long route[MAX_ROUTE];
};
struct options {
struct route record_route;
struct route loose_route;
struct route strict_route;
struct timestamp tstamp;
unsigned short security;
unsigned short compartment;
unsigned short handling;
unsigned short stream;
unsigned tcc;
};
struct iphdr {
#if defined(LITTLE_ENDIAN_BITFIELD)
__u8 ihl:4,
version:4;
#elif defined (BIG_ENDIAN_BITFIELD)
__u8 version:4,
ihl:4;
#else
#error "Please fix <asm/byteorder.h>"
#endif
__u8 tos;
__u16 tot_len;
__u16 id;
__u16 frag_off;
__u8 ttl;
__u8 protocol;
__u16 check;
__u32 saddr;
__u32 daddr;
/*The options start here. */
};
#endif /* _LINUX_IP_H */
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