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	In order to ensure no backward/forward compatiablity problems, make sure that all kernel headers used come from the local copy. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
		
			
				
	
	
		
			176 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			176 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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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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#include <linux/types.h>
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#include <asm/byteorder.h>
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#define IPTOS_TOS_MASK		0x1E
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#define IPTOS_TOS(tos)		((tos)&IPTOS_TOS_MASK)
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#define	IPTOS_LOWDELAY		0x10
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#define	IPTOS_THROUGHPUT	0x08
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#define	IPTOS_RELIABILITY	0x04
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#define	IPTOS_MINCOST		0x02
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#define IPTOS_PREC_MASK		0xE0
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#define IPTOS_PREC(tos)		((tos)&IPTOS_PREC_MASK)
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#define IPTOS_PREC_NETCONTROL           0xe0
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#define IPTOS_PREC_INTERNETCONTROL      0xc0
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#define IPTOS_PREC_CRITIC_ECP           0xa0
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#define IPTOS_PREC_FLASHOVERRIDE        0x80
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#define IPTOS_PREC_FLASH                0x60
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#define IPTOS_PREC_IMMEDIATE            0x40
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#define IPTOS_PREC_PRIORITY             0x20
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#define IPTOS_PREC_ROUTINE              0x00
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/* IP options */
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#define IPOPT_COPY		0x80
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#define IPOPT_CLASS_MASK	0x60
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#define IPOPT_NUMBER_MASK	0x1f
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#define	IPOPT_COPIED(o)		((o)&IPOPT_COPY)
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#define	IPOPT_CLASS(o)		((o)&IPOPT_CLASS_MASK)
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#define	IPOPT_NUMBER(o)		((o)&IPOPT_NUMBER_MASK)
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#define	IPOPT_CONTROL		0x00
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#define	IPOPT_RESERVED1		0x20
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#define	IPOPT_MEASUREMENT	0x40
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#define	IPOPT_RESERVED2		0x60
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#define IPOPT_END	(0 |IPOPT_CONTROL)
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#define IPOPT_NOOP	(1 |IPOPT_CONTROL)
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#define IPOPT_SEC	(2 |IPOPT_CONTROL|IPOPT_COPY)
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#define IPOPT_LSRR	(3 |IPOPT_CONTROL|IPOPT_COPY)
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#define IPOPT_TIMESTAMP	(4 |IPOPT_MEASUREMENT)
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#define IPOPT_CIPSO	(6 |IPOPT_CONTROL|IPOPT_COPY)
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#define IPOPT_RR	(7 |IPOPT_CONTROL)
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#define IPOPT_SID	(8 |IPOPT_CONTROL|IPOPT_COPY)
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#define IPOPT_SSRR	(9 |IPOPT_CONTROL|IPOPT_COPY)
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#define IPOPT_RA	(20|IPOPT_CONTROL|IPOPT_COPY)
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#define IPVERSION	4
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#define MAXTTL		255
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#define IPDEFTTL	64
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#define IPOPT_OPTVAL 0
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#define IPOPT_OLEN   1
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#define IPOPT_OFFSET 2
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#define IPOPT_MINOFF 4
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#define MAX_IPOPTLEN 40
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#define IPOPT_NOP IPOPT_NOOP
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#define IPOPT_EOL IPOPT_END
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#define IPOPT_TS  IPOPT_TIMESTAMP
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#define	IPOPT_TS_TSONLY		0		/* timestamps only */
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#define	IPOPT_TS_TSANDADDR	1		/* timestamps and addresses */
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#define	IPOPT_TS_PRESPEC	3		/* specified modules only */
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#define IPV4_BEET_PHMAXLEN 8
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struct iphdr {
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#if defined(__LITTLE_ENDIAN_BITFIELD)
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	__u8	ihl:4,
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		version:4;
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#elif defined (__BIG_ENDIAN_BITFIELD)
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	__u8	version:4,
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  		ihl:4;
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#else
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#error	"Please fix <asm/byteorder.h>"
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#endif
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	__u8	tos;
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	__be16	tot_len;
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	__be16	id;
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	__be16	frag_off;
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	__u8	ttl;
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	__u8	protocol;
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	__sum16	check;
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	__be32	saddr;
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	__be32	daddr;
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	/*The options start here. */
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};
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struct ip_auth_hdr {
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	__u8  nexthdr;
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	__u8  hdrlen;		/* This one is measured in 32 bit units! */
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	__be16 reserved;
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	__be32 spi;
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	__be32 seq_no;		/* Sequence number */
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	__u8  auth_data[0];	/* Variable len but >=4. Mind the 64 bit alignment! */
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};
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struct ip_esp_hdr {
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	__be32 spi;
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	__be32 seq_no;		/* Sequence number */
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	__u8  enc_data[0];	/* Variable len but >=8. Mind the 64 bit alignment! */
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};
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struct ip_comp_hdr {
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	__u8 nexthdr;
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	__u8 flags;
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	__be16 cpi;
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};
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struct ip_beet_phdr {
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	__u8 nexthdr;
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	__u8 hdrlen;
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	__u8 padlen;
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	__u8 reserved;
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};
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/* index values for the variables in ipv4_devconf */
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enum
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{
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	IPV4_DEVCONF_FORWARDING=1,
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	IPV4_DEVCONF_MC_FORWARDING,
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	IPV4_DEVCONF_PROXY_ARP,
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	IPV4_DEVCONF_ACCEPT_REDIRECTS,
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	IPV4_DEVCONF_SECURE_REDIRECTS,
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	IPV4_DEVCONF_SEND_REDIRECTS,
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	IPV4_DEVCONF_SHARED_MEDIA,
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	IPV4_DEVCONF_RP_FILTER,
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	IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE,
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	IPV4_DEVCONF_BOOTP_RELAY,
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	IPV4_DEVCONF_LOG_MARTIANS,
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	IPV4_DEVCONF_TAG,
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	IPV4_DEVCONF_ARPFILTER,
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	IPV4_DEVCONF_MEDIUM_ID,
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	IPV4_DEVCONF_NOXFRM,
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	IPV4_DEVCONF_NOPOLICY,
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	IPV4_DEVCONF_FORCE_IGMP_VERSION,
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	IPV4_DEVCONF_ARP_ANNOUNCE,
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	IPV4_DEVCONF_ARP_IGNORE,
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	IPV4_DEVCONF_PROMOTE_SECONDARIES,
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	IPV4_DEVCONF_ARP_ACCEPT,
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	IPV4_DEVCONF_ARP_NOTIFY,
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	IPV4_DEVCONF_ACCEPT_LOCAL,
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	IPV4_DEVCONF_SRC_VMARK,
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	IPV4_DEVCONF_PROXY_ARP_PVLAN,
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	IPV4_DEVCONF_ROUTE_LOCALNET,
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	IPV4_DEVCONF_IGMPV2_UNSOLICITED_REPORT_INTERVAL,
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	IPV4_DEVCONF_IGMPV3_UNSOLICITED_REPORT_INTERVAL,
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	IPV4_DEVCONF_IGNORE_ROUTES_WITH_LINKDOWN,
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	IPV4_DEVCONF_DROP_UNICAST_IN_L2_MULTICAST,
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	IPV4_DEVCONF_DROP_GRATUITOUS_ARP,
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	__IPV4_DEVCONF_MAX
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};
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#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1)
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#endif /* _LINUX_IP_H */
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