glibc/inet/netinet/ip.h
Ulrich Drepper c0e4567461 update from main archive 970201
1997-02-02 00:39  Ulrich Drepper  <drepper@cygnus.com>

	* dirent/dirent.h: Add description _DIRENT_HAVE_D_TYPE.

1997-02-01 17:04  Philip Blundell  <pjb27@cam.ac.uk>

	* inet/netinet/ip.h (MAX_IPOPTLEN): Add definition.

1997-02-01 17:00  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/socketbits.h: Add definition of cmsghdr
	structure plus related macros.
	* sysdeps/unix/sysv/linux/cmsg_nxthdr.c: New file.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=socket]
	(sysdep_routines): Add cmsg_nxthdr.
	* sysdeps/unix/sysv/linux/Dist: Add cmsg_nxthdr.c.
	Suggested by Philip Blundell <pjb27@cam.ac.uk>.

1997-02-01 12:34  Ulrich Drepper  <drepper@cygnus.com>

	* time/strftime.c: Define _strftime_copytm without protecting arguments
	which breaks the definition.

1997-02-01 03:31  Thorsten Kukuk  <kukuk@weber.uni-paderborn.de>

	* nis/rpcsvc/yp_prot.h: Move definition of yppushresp_xfr after
	definition of type for element.

1997-02-01 03:28  Philip Blundell  <pjb27@cam.ac.uk>

	* sydsdeps/unix/sysv/linux/netinet/in.h: Add IPv6 related IPPROTO_*
	constants.

1997-02-01 03:09  H.J. Lu  <hjl@lucon.org>

	* Makefile: Pass PARALLELMFLAGS to sub-makes.
	* Makefile.in: Mention PARALLELMFLAGS and pass to main Makefile.

1997-01-31  Paul Eggert  <eggert@twinsun.com>

	* time/mktime.c (HAVE_LIMITS_H, HAVE_LOCALTIME_R, STDC_HEADERS):
	Define if _LIBC is defined.
	<limits.h>: Include if HAVE_LIMITS_H instead of if
	__STDC__ || __GNU_LIBRARY__ || STDC_HEADERS.
	<stdlib.h>: Similarly, include if STDC_HEADERS.
	(localtime_r): Redo #ifdef to make it clear that glibc has
	localtime_r now.

1997-02-29 20:08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sunrpc/Makefile ($(objpfx)rpcsvc/%.h, $(objpfx)x%.c): Use stamp
	file to avoid unnecessary recompilation.

1997-01-29 19:33  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile: Set install-others, not install_others.
	(before-compile): Use += to preserve previous value.
	($(inst_includedir)/gnu/lib-names.h): Remove obsolete comment and
	fix dependency name.
	($(objpfx)lib-names.h): Remove rule.
	* Makeconfig ($(common-objpfx)gnu/lib-names.h): Generate it here,
	with correct name, using an intermediate stamp file.
	(common-generated): Add gnu/lib-names.h.
	(before-compile): Add $(common-objpfx)gnu/lib-names.h.

1997-01-30 18:29  Richard Henderson  <richard@atheist.tamu.edu>

	* malloc/malloc.c (MAGICBYTE): Use cast to size_t instead of unsigned
	to prevent warnings on 64 bit systems.
	Reported by Paul Wouters <paul@xtdnet.nl>.

	* sysdeps/alpha/dl-machine.h: Revert check for broken gas.  By default
	we assume it works.
1997-02-02 01:50:11 +00:00

168 lines
5.6 KiB
C

/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)ip.h 8.1 (Berkeley) 6/10/93
*/
#include <gnu/types.h>
#include <endian.h>
#include <netinet/in.h>
/*
* Definitions for internet protocol version 4.
* Per RFC 791, September 1981.
*/
#define IPVERSION 4
/*
* Structure of an internet header, naked of options.
*/
struct ip {
#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
__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_RF 0x8000 /* reserved fragment flag */
#define IP_DF 0x4000 /* dont fragment flag */
#define IP_MF 0x2000 /* more fragments flag */
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
__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
#define IPTOS_LOWCOST 0x02
#define IPTOS_MINCOST IPTOS_LOWCOST
/*
* 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 0x00
/*
* 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 */
#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 */
#define MAX_IPOPTLEN 40
/*
* 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 __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
__u_long data[9];
};
/* 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 IPDEFTTL 64 /* default ttl, from RFC 1340 */
#define IPFRAGTTL 60 /* time to live for frags, slowhz */
#define IPTTLDEC 1 /* subtracted when forwarding */
#define IP_MSS 576 /* default maximum segment size */