1224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* 2224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * INET An implementation of the TCP/IP protocol suite for the LINUX 3224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * operating system. INET is implemented using the BSD Socket 4224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * interface as the means of communication with the user level. 5224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 6224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Definitions for the IP protocol. 7224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 8224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Version: @(#)ip.h 1.0.2 04/28/93 9224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 10224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Authors: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 11224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 12224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * This program is free software; you can redistribute it and/or 13224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * modify it under the terms of the GNU General Public License 14224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * as published by the Free Software Foundation; either version 15224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * 2 of the License, or (at your option) any later version. 16224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng */ 17224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#ifndef _UAPI_LINUX_IP_H 18224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define _UAPI_LINUX_IP_H 19224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#include <linux/types.h> 20224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#include <asm/byteorder.h> 21224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 22224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_TOS_MASK 0x1E 23224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_TOS(tos) ((tos)&IPTOS_TOS_MASK) 24224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_LOWDELAY 0x10 25224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_THROUGHPUT 0x08 26224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_RELIABILITY 0x04 27224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_MINCOST 0x02 28224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 29224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC_MASK 0xE0 30224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC(tos) ((tos)&IPTOS_PREC_MASK) 31224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC_NETCONTROL 0xe0 32224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC_INTERNETCONTROL 0xc0 33224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC_CRITIC_ECP 0xa0 34224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC_FLASHOVERRIDE 0x80 35224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC_FLASH 0x60 36224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC_IMMEDIATE 0x40 37224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC_PRIORITY 0x20 38224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPTOS_PREC_ROUTINE 0x00 39224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 40224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 41224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* IP options */ 42224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_COPY 0x80 43224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_CLASS_MASK 0x60 44224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_NUMBER_MASK 0x1f 45224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 46224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_COPIED(o) ((o)&IPOPT_COPY) 47224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_CLASS(o) ((o)&IPOPT_CLASS_MASK) 48224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_NUMBER(o) ((o)&IPOPT_NUMBER_MASK) 49224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 50224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_CONTROL 0x00 51224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_RESERVED1 0x20 52224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_MEASUREMENT 0x40 53224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_RESERVED2 0x60 54224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 55224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_END (0 |IPOPT_CONTROL) 56224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_NOOP (1 |IPOPT_CONTROL) 57224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_SEC (2 |IPOPT_CONTROL|IPOPT_COPY) 58224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_LSRR (3 |IPOPT_CONTROL|IPOPT_COPY) 59224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_TIMESTAMP (4 |IPOPT_MEASUREMENT) 60224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_CIPSO (6 |IPOPT_CONTROL|IPOPT_COPY) 61224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_RR (7 |IPOPT_CONTROL) 62224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_SID (8 |IPOPT_CONTROL|IPOPT_COPY) 63224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_SSRR (9 |IPOPT_CONTROL|IPOPT_COPY) 64224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_RA (20|IPOPT_CONTROL|IPOPT_COPY) 65224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 66224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPVERSION 4 67224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define MAXTTL 255 68224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPDEFTTL 64 69224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 70224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_OPTVAL 0 71224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_OLEN 1 72224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_OFFSET 2 73224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_MINOFF 4 74224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define MAX_IPOPTLEN 40 75224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_NOP IPOPT_NOOP 76224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_EOL IPOPT_END 77224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_TS IPOPT_TIMESTAMP 78224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 79224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_TS_TSONLY 0 /* timestamps only */ 80224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */ 81224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPOPT_TS_PRESPEC 3 /* specified modules only */ 82224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 83224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IPV4_BEET_PHMAXLEN 8 84224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 85224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct iphdr { 86224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#if defined(__LITTLE_ENDIAN_BITFIELD) 87224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 ihl:4, 88224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng version:4; 89224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#elif defined (__BIG_ENDIAN_BITFIELD) 90224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 version:4, 91224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng ihl:4; 92224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#else 93224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#error "Please fix <asm/byteorder.h>" 94224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#endif 95224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 tos; 96224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be16 tot_len; 97224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be16 id; 98224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be16 frag_off; 99224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 ttl; 100224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 protocol; 101224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __sum16 check; 102224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be32 saddr; 103224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be32 daddr; 104224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng /*The options start here. */ 105224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 106224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 107224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 108224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct ip_auth_hdr { 109224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 nexthdr; 110224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 hdrlen; /* This one is measured in 32 bit units! */ 111224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be16 reserved; 112224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be32 spi; 113224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be32 seq_no; /* Sequence number */ 114224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 auth_data[0]; /* Variable len but >=4. Mind the 64 bit alignment! */ 115224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 116224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 117224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct ip_esp_hdr { 118224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be32 spi; 119224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be32 seq_no; /* Sequence number */ 120224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 enc_data[0]; /* Variable len but >=8. Mind the 64 bit alignment! */ 121224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 122224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 123224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct ip_comp_hdr { 124224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 nexthdr; 125224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 flags; 126224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __be16 cpi; 127224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 128224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 129224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct ip_beet_phdr { 130224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 nexthdr; 131224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 hdrlen; 132224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 padlen; 133224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 reserved; 134224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 135224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 136e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl/* index values for the variables in ipv4_devconf */ 137e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heylenum 138e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl{ 139e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_FORWARDING=1, 140e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_MC_FORWARDING, 141e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_PROXY_ARP, 142e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_ACCEPT_REDIRECTS, 143e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_SECURE_REDIRECTS, 144e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_SEND_REDIRECTS, 145e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_SHARED_MEDIA, 146e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_RP_FILTER, 147e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE, 148e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_BOOTP_RELAY, 149e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_LOG_MARTIANS, 150e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_TAG, 151e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_ARPFILTER, 152e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_MEDIUM_ID, 153e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_NOXFRM, 154e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_NOPOLICY, 155e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_FORCE_IGMP_VERSION, 156e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_ARP_ANNOUNCE, 157e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_ARP_IGNORE, 158e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_PROMOTE_SECONDARIES, 159e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_ARP_ACCEPT, 160e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_ARP_NOTIFY, 161e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_ACCEPT_LOCAL, 162e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_SRC_VMARK, 163e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_PROXY_ARP_PVLAN, 164e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_ROUTE_LOCALNET, 165e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_IGMPV2_UNSOLICITED_REPORT_INTERVAL, 166e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl IPV4_DEVCONF_IGMPV3_UNSOLICITED_REPORT_INTERVAL, 167e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl __IPV4_DEVCONF_MAX 168e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl}; 169e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl 170e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1) 171e87eaf040ab639e94ed0a58ff0eac68d1d38fb0aEd Heyl 172224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#endif /* _UAPI_LINUX_IP_H */ 173