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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 #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 struct timestamp { unsigned char len; unsigned char ptr; union { unsigned char flags:4, overflow:4; unsigned char full_char; } x; unsigned long 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 { unsigned char ihl:4, version:4; unsigned char tos; unsigned short tot_len; unsigned short id; unsigned short frag_off; unsigned char ttl; unsigned char protocol; unsigned short check; unsigned long saddr; unsigned long daddr; /*The options start here. */ }; #endif /* _LINUX_IP_H */ |