/* * © Copyright 1976, 2003 Hewlett-Packard Development Company, L.P. * * Confidential computer software. Valid license from HP and/or its * subsidiaries required for possession, use, or copying. * * Consistent with FAR 12.211 and 12.212, Commercial Computer Software, * Computer Software Documentation, and Technical Data for Commercial * Items are licensed to the U.S. Government under vendor's standard * commercial license. * * Neither HP nor any of its subsidiaries shall be liable for technical * or editorial errors or omissions contained herein. The information * in this document is provided "as is" without warranty of any kind * and is subject to change without notice. The warranties for HP * products are set forth in the express limited warranty statements * accompanying such products. Nothing herein should be construed as * constituting an additional warranty. */ /* * (c) Copyright 1990, OPEN SOFTWARE FOUNDATION, INC. * ALL RIGHTS RESERVED */ /* * OSF/1 Release 1.0 */ /* * Copyright (C) 1988,1989 Encore Computer Corporation. All Rights Reserved * * Property of Encore Computer Corporation. * This software is made available solely pursuant to the terms of * a software license agreement which governs its use. Unauthorized * duplication, distribution or sale are strictly prohibited. * */ /* * Copyright (c) 1982, 1986 Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted provided * that: (1) source distributions retain this entire copyright notice and * comment, and (2) distributions including binaries display the following * acknowledgement: ``This product includes software developed by the * University of California, Berkeley and its contributors'' in the * documentation or other materials provided with the distribution and in * all advertising materials mentioning features or use of this software. * Neither the name of the University nor the names of its contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * Base: ip.h 7.8 (Berkeley) 2/20/89 * Merged: ip.h 7.10 (Berkeley) 6/28/90 */ /* * Revision History: * * 4-Nov-91 Heather Gray * Include endian.h if BYTE_ORDER not defined */ #ifndef _NETINET_IP_H #define _NETINET_IP_H #include #include #ifndef BYTE_ORDER #include #endif /* * Definitions for internet protocol version 4. * Per RFC 791, September 1981. */ #define IPVERSION 4 /* * Structure of an internet header, naked of options. * * Beware: We now correctly declare ip_len and ip_off to be u_short. * */ struct ip { #if defined(_KERNEL) || defined(_NO_BITFIELDS) || (__STDC__ == 1) #ifndef __VMS u_char ip_vhl; /* version and header length */ #else /* __VMS */ # ifndef TCPIP$GATED_NETINET_IP_H u_char ip_vhl; /* version and header length */ # else /* TCPIP$GATED_NETINET_IP_H */ u_char ip_hl:4, /* header length */ ip_v:4; /* version */ # endif /* TCPIP$GATED_NETINET_IP_H */ #endif /* __VMS */ #else #if BYTE_ORDER == LITTLE_ENDIAN u_char ip_hl:4, /* header length */ ip_v:4; /* version */ #endif #if BYTE_ORDER == BIG_ENDIAN u_char ip_v:4, /* version */ ip_hl:4; /* header length */ #endif #endif u_char ip_tos; /* type of service */ u_short ip_len; /* total length */ u_short ip_id; /* identification */ u_short ip_off; /* fragment offset field */ #define IP_DF 0x4000 /* dont fragment flag */ #define IP_MF 0x2000 /* more fragments flag */ u_char ip_ttl; /* time to live */ u_char ip_p; /* protocol */ u_short ip_sum; /* checksum */ struct in_addr ip_src,ip_dst; /* source and dest address */ }; #define IP_MAXPACKET 65535 /* maximum packet size */ /* * Definitions for IP type of service (ip_tos) */ #define IPTOS_LOWDELAY 0x10 #define IPTOS_THROUGHPUT 0x08 #define IPTOS_RELIABILITY 0x04 /* * Definitions for IP precedence (also in ip_tos) (hopefully unused) */ #define IPTOS_PREC_NETCONTROL 0xe0 #define IPTOS_PREC_INTERNETCONTROL 0xc0 #define IPTOS_PREC_CRITIC_ECP 0xa0 #define IPTOS_PREC_FLASHOVERRIDE 0x80 #define IPTOS_PREC_FLASH 0x60 #define IPTOS_PREC_IMMEDIATE 0x40 #define IPTOS_PREC_PRIORITY 0x20 #define IPTOS_PREC_ROUTINE 0x10 /* * Definitions for options. */ #define IPOPT_COPIED(o) ((o)&0x80) #define IPOPT_CLASS(o) ((o)&0x60) #define IPOPT_NUMBER(o) ((o)&0x1f) #define IPOPT_CONTROL 0x00 #define IPOPT_RESERVED1 0x20 #define IPOPT_DEBMEAS 0x40 #define IPOPT_RESERVED2 0x60 #define IPOPT_EOL 0 /* end of option list */ #define IPOPT_NOP 1 /* no operation */ #define IPOPT_RR 7 /* record packet route */ #define IPOPT_TS 68 /* timestamp */ #define IPOPT_SECURITY 130 /* provide s,c,h,tcc */ #define IPOPT_LSRR 131 /* loose source route */ #if SEC_NET #define IPOPT_RIPSO_AUX 133 /* RIPSO extended options. */ #define IPOPT_CIPSO 134 /* CIPSO security options. */ #endif #define IPOPT_SATID 136 /* satnet id */ #define IPOPT_SSRR 137 /* strict source route */ /* * Offsets to fields in options other than EOL and NOP. */ #define IPOPT_OPTVAL 0 /* option ID */ #define IPOPT_OLEN 1 /* option length */ #define IPOPT_OFFSET 2 /* offset within option */ #define IPOPT_MINOFF 4 /* min value of above */ /* * Time stamp option structure. */ struct ip_timestamp { u_char ipt_code; /* IPOPT_TS */ u_char ipt_len; /* size of structure (variable) */ u_char ipt_ptr; /* index of current entry */ #if defined(_KERNEL) || defined(_NO_BITFIELDS) || (__STDC__ == 1) u_char ipt_oflg; /* overflow and flags */ #else #if BYTE_ORDER == LITTLE_ENDIAN u_char ipt_flg:4, /* flags, see below */ ipt_oflw:4; /* overflow counter */ #endif #if BYTE_ORDER == BIG_ENDIAN u_char ipt_oflw:4, /* overflow counter */ ipt_flg:4; /* flags, see below */ #endif #endif union ipt_timestamp { n_long ipt_time[1]; struct ipt_ta { struct in_addr ipt_addr; n_long ipt_time; } ipt_ta[1]; } ipt_timestamp; }; /* * IPCOMP header structure */ struct ipcomp_hdr { uint8_t ipcomp_nxthdr; /* next header */ uint8_t ipcomp_flags; /* flags */ u_int16_t ipcomp_cpi; /* Compression Paremeter Index */ }; /* flag bits for ipt_flg */ #define IPOPT_TS_TSONLY 0 /* timestamps only */ #define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */ #define IPOPT_TS_PRESPEC 3 /* specified modules only */ /* bits for security (not byte swapped) */ #define IPOPT_SECUR_UNCLASS 0x0000 #define IPOPT_SECUR_CONFID 0xf135 #define IPOPT_SECUR_EFTO 0x789a #define IPOPT_SECUR_MMMM 0xbc4d #define IPOPT_SECUR_RESTR 0xaf13 #define IPOPT_SECUR_SECRET 0xd788 #define IPOPT_SECUR_TOPSECRET 0x6bc5 /* * Internet implementation parameters. */ #define MAXTTL 255 /* maximum time to live (seconds) */ #define MINTTL 1 /* minimum time to live (seconds) */ #define DEFTTL 64 /* default time to live (rfc1700) */ #define IPFRAGTTL 60 /* time to live for frags, slowhz */ #define IPTTLDEC 1 /* subtracted when forwarding */ #define IP_MSS 576 /* default maximum segment size */ #endif