177 lines
4.6 KiB
C
177 lines
4.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
|
|
/*
|
|
* 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 _UAPI_LINUX_IP_H
|
|
#define _UAPI_LINUX_IP_H
|
|
#include <linux/types.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
#define IPTOS_TOS_MASK 0x1E
|
|
#define IPTOS_TOS(tos) ((tos)&IPTOS_TOS_MASK)
|
|
#define IPTOS_LOWDELAY 0x10
|
|
#define IPTOS_THROUGHPUT 0x08
|
|
#define IPTOS_RELIABILITY 0x04
|
|
#define IPTOS_MINCOST 0x02
|
|
|
|
#define IPTOS_PREC_MASK 0xE0
|
|
#define IPTOS_PREC(tos) ((tos)&IPTOS_PREC_MASK)
|
|
#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
|
|
|
|
|
|
/* IP options */
|
|
#define IPOPT_COPY 0x80
|
|
#define IPOPT_CLASS_MASK 0x60
|
|
#define IPOPT_NUMBER_MASK 0x1f
|
|
|
|
#define IPOPT_COPIED(o) ((o)&IPOPT_COPY)
|
|
#define IPOPT_CLASS(o) ((o)&IPOPT_CLASS_MASK)
|
|
#define IPOPT_NUMBER(o) ((o)&IPOPT_NUMBER_MASK)
|
|
|
|
#define IPOPT_CONTROL 0x00
|
|
#define IPOPT_RESERVED1 0x20
|
|
#define IPOPT_MEASUREMENT 0x40
|
|
#define IPOPT_RESERVED2 0x60
|
|
|
|
#define IPOPT_END (0 |IPOPT_CONTROL)
|
|
#define IPOPT_NOOP (1 |IPOPT_CONTROL)
|
|
#define IPOPT_SEC (2 |IPOPT_CONTROL|IPOPT_COPY)
|
|
#define IPOPT_LSRR (3 |IPOPT_CONTROL|IPOPT_COPY)
|
|
#define IPOPT_TIMESTAMP (4 |IPOPT_MEASUREMENT)
|
|
#define IPOPT_CIPSO (6 |IPOPT_CONTROL|IPOPT_COPY)
|
|
#define IPOPT_RR (7 |IPOPT_CONTROL)
|
|
#define IPOPT_SID (8 |IPOPT_CONTROL|IPOPT_COPY)
|
|
#define IPOPT_SSRR (9 |IPOPT_CONTROL|IPOPT_COPY)
|
|
#define IPOPT_RA (20|IPOPT_CONTROL|IPOPT_COPY)
|
|
|
|
#define IPVERSION 4
|
|
#define MAXTTL 255
|
|
#define IPDEFTTL 64
|
|
|
|
#define IPOPT_OPTVAL 0
|
|
#define IPOPT_OLEN 1
|
|
#define IPOPT_OFFSET 2
|
|
#define IPOPT_MINOFF 4
|
|
#define MAX_IPOPTLEN 40
|
|
#define IPOPT_NOP IPOPT_NOOP
|
|
#define IPOPT_EOL IPOPT_END
|
|
#define IPOPT_TS IPOPT_TIMESTAMP
|
|
|
|
#define IPOPT_TS_TSONLY 0 /* timestamps only */
|
|
#define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */
|
|
#define IPOPT_TS_PRESPEC 3 /* specified modules only */
|
|
|
|
#define IPV4_BEET_PHMAXLEN 8
|
|
|
|
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;
|
|
__be16 tot_len;
|
|
__be16 id;
|
|
__be16 frag_off;
|
|
__u8 ttl;
|
|
__u8 protocol;
|
|
__sum16 check;
|
|
__be32 saddr;
|
|
__be32 daddr;
|
|
/*The options start here. */
|
|
};
|
|
|
|
|
|
struct ip_auth_hdr {
|
|
__u8 nexthdr;
|
|
__u8 hdrlen; /* This one is measured in 32 bit units! */
|
|
__be16 reserved;
|
|
__be32 spi;
|
|
__be32 seq_no; /* Sequence number */
|
|
__u8 auth_data[0]; /* Variable len but >=4. Mind the 64 bit alignment! */
|
|
};
|
|
|
|
struct ip_esp_hdr {
|
|
__be32 spi;
|
|
__be32 seq_no; /* Sequence number */
|
|
__u8 enc_data[0]; /* Variable len but >=8. Mind the 64 bit alignment! */
|
|
};
|
|
|
|
struct ip_comp_hdr {
|
|
__u8 nexthdr;
|
|
__u8 flags;
|
|
__be16 cpi;
|
|
};
|
|
|
|
struct ip_beet_phdr {
|
|
__u8 nexthdr;
|
|
__u8 hdrlen;
|
|
__u8 padlen;
|
|
__u8 reserved;
|
|
};
|
|
|
|
/* index values for the variables in ipv4_devconf */
|
|
enum
|
|
{
|
|
IPV4_DEVCONF_FORWARDING=1,
|
|
IPV4_DEVCONF_MC_FORWARDING,
|
|
IPV4_DEVCONF_PROXY_ARP,
|
|
IPV4_DEVCONF_ACCEPT_REDIRECTS,
|
|
IPV4_DEVCONF_SECURE_REDIRECTS,
|
|
IPV4_DEVCONF_SEND_REDIRECTS,
|
|
IPV4_DEVCONF_SHARED_MEDIA,
|
|
IPV4_DEVCONF_RP_FILTER,
|
|
IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE,
|
|
IPV4_DEVCONF_BOOTP_RELAY,
|
|
IPV4_DEVCONF_LOG_MARTIANS,
|
|
IPV4_DEVCONF_TAG,
|
|
IPV4_DEVCONF_ARPFILTER,
|
|
IPV4_DEVCONF_MEDIUM_ID,
|
|
IPV4_DEVCONF_NOXFRM,
|
|
IPV4_DEVCONF_NOPOLICY,
|
|
IPV4_DEVCONF_FORCE_IGMP_VERSION,
|
|
IPV4_DEVCONF_ARP_ANNOUNCE,
|
|
IPV4_DEVCONF_ARP_IGNORE,
|
|
IPV4_DEVCONF_PROMOTE_SECONDARIES,
|
|
IPV4_DEVCONF_ARP_ACCEPT,
|
|
IPV4_DEVCONF_ARP_NOTIFY,
|
|
IPV4_DEVCONF_ACCEPT_LOCAL,
|
|
IPV4_DEVCONF_SRC_VMARK,
|
|
IPV4_DEVCONF_PROXY_ARP_PVLAN,
|
|
IPV4_DEVCONF_ROUTE_LOCALNET,
|
|
IPV4_DEVCONF_IGMPV2_UNSOLICITED_REPORT_INTERVAL,
|
|
IPV4_DEVCONF_IGMPV3_UNSOLICITED_REPORT_INTERVAL,
|
|
IPV4_DEVCONF_IGNORE_ROUTES_WITH_LINKDOWN,
|
|
IPV4_DEVCONF_DROP_UNICAST_IN_L2_MULTICAST,
|
|
IPV4_DEVCONF_DROP_GRATUITOUS_ARP,
|
|
__IPV4_DEVCONF_MAX
|
|
};
|
|
|
|
#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1)
|
|
|
|
#endif /* _UAPI_LINUX_IP_H */
|