1c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 2c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * INET An implementation of the TCP/IP protocol suite for the LINUX 3c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * operating system. INET is implemented using the BSD Socket 4c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * interface as the means of communication with the user level. 5c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 6c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Definitions of the Internet Protocol. 7c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 8c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Version: @(#)in.h 1.0.1 04/21/93 9c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 10c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Authors: Original taken from the GNU Project <netinet/in.h> file. 11c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 12c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 13c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * This program is free software; you can redistribute it and/or 14c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * modify it under the terms of the GNU General Public License 15c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * as published by the Free Software Foundation; either version 16c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 2 of the License, or (at your option) any later version. 17c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 18c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifndef _LINUX_IN_H 19c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define _LINUX_IN_H 20c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 21c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <linux/types.h> 22c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <linux/socket.h> 23c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 24c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Standard well-defined IP protocols. */ 25c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruenum { 26c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_IP = 0, /* Dummy protocol for TCP */ 27c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_ICMP = 1, /* Internet Control Message Protocol */ 28c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_IGMP = 2, /* Internet Group Management Protocol */ 29c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94) */ 30c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_TCP = 6, /* Transmission Control Protocol */ 31c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_EGP = 8, /* Exterior Gateway Protocol */ 32c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_PUP = 12, /* PUP protocol */ 33c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_UDP = 17, /* User Datagram Protocol */ 34c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_IDP = 22, /* XNS IDP protocol */ 35c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_DCCP = 33, /* Datagram Congestion Control Protocol */ 36c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_RSVP = 46, /* RSVP protocol */ 37c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_GRE = 47, /* Cisco GRE tunnels (rfc 1701,1702) */ 38c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 39c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_IPV6 = 41, /* IPv6-in-IPv4 tunnelling */ 40c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 41c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_ESP = 50, /* Encapsulation Security Payload protocol */ 42c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_AH = 51, /* Authentication Header protocol */ 43c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_PIM = 103, /* Protocol Independent Multicast */ 44c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 45c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_COMP = 108, /* Compression Header protocol */ 46c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_SCTP = 132, /* Stream Control Transport Protocol */ 47c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 48c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_RAW = 255, /* Raw IP packets */ 49c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru IPPROTO_MAX 50c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 51c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 52c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 53c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Internet address. */ 54c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct in_addr { 55c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 s_addr; 56c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 57c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 58c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_TOS 1 59c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_TTL 2 60c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_HDRINCL 3 61c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_OPTIONS 4 62c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_ROUTER_ALERT 5 63c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_RECVOPTS 6 64c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_RETOPTS 7 65c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_PKTINFO 8 66c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_PKTOPTIONS 9 67c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_MTU_DISCOVER 10 68c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_RECVERR 11 69c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_RECVTTL 12 70c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_RECVTOS 13 71c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_MTU 14 72c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_FREEBIND 15 73c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_IPSEC_POLICY 16 74c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_XFRM_POLICY 17 75c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_PASSSEC 18 76c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 77c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* BSD compatibility */ 78c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_RECVRETOPTS IP_RETOPTS 79c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 80c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* IP_MTU_DISCOVER values */ 81c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_PMTUDISC_DONT 0 /* Never send DF frames */ 82c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_PMTUDISC_WANT 1 /* Use per route hints */ 83c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_PMTUDISC_DO 2 /* Always DF */ 84c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 85c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_MULTICAST_IF 32 86c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_MULTICAST_TTL 33 87c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_MULTICAST_LOOP 34 88c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_ADD_MEMBERSHIP 35 89c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_DROP_MEMBERSHIP 36 90c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_UNBLOCK_SOURCE 37 91c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_BLOCK_SOURCE 38 92c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_ADD_SOURCE_MEMBERSHIP 39 93c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_DROP_SOURCE_MEMBERSHIP 40 94c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_MSFILTER 41 95c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MCAST_JOIN_GROUP 42 96c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MCAST_BLOCK_SOURCE 43 97c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MCAST_UNBLOCK_SOURCE 44 98c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MCAST_LEAVE_GROUP 45 99c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MCAST_JOIN_SOURCE_GROUP 46 100c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MCAST_LEAVE_SOURCE_GROUP 47 101c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MCAST_MSFILTER 48 102c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 103c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MCAST_EXCLUDE 0 104c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MCAST_INCLUDE 1 105c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 106c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* These need to appear somewhere around here */ 107c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_DEFAULT_MULTICAST_TTL 1 108c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_DEFAULT_MULTICAST_LOOP 1 109c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 110c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Request struct for multicast socket ops */ 111c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 112c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct ip_mreq 113c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 114c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct in_addr imr_multiaddr; /* IP multicast address of group */ 115c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct in_addr imr_interface; /* local IP address of interface */ 116c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 117c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 118c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct ip_mreqn 119c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 120c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct in_addr imr_multiaddr; /* IP multicast address of group */ 121c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct in_addr imr_address; /* local IP address of interface */ 122c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int imr_ifindex; /* Interface index */ 123c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 124c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 125c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct ip_mreq_source { 126c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 imr_multiaddr; 127c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 imr_interface; 128c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 imr_sourceaddr; 129c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 130c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 131c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct ip_msfilter { 132c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 imsf_multiaddr; 133c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 imsf_interface; 134c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 imsf_fmode; 135c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 imsf_numsrc; 136c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 imsf_slist[1]; 137c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 138c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 139c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IP_MSFILTER_SIZE(numsrc) \ 140c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru (sizeof(struct ip_msfilter) - sizeof(__u32) \ 141c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru + (numsrc) * sizeof(__u32)) 142c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 143c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct group_req 144c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 145c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 gr_interface; /* interface index */ 146c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct __kernel_sockaddr_storage gr_group; /* group address */ 147c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 148c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 149c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct group_source_req 150c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 151c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 gsr_interface; /* interface index */ 152c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct __kernel_sockaddr_storage gsr_group; /* group address */ 153c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct __kernel_sockaddr_storage gsr_source; /* source address */ 154c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 155c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 156c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct group_filter 157c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 158c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 gf_interface; /* interface index */ 159c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct __kernel_sockaddr_storage gf_group; /* multicast address */ 160c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 gf_fmode; /* filter mode */ 161c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __u32 gf_numsrc; /* number of sources */ 162c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct __kernel_sockaddr_storage gf_slist[1]; /* interface index */ 163c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 164c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 165c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define GROUP_FILTER_SIZE(numsrc) \ 166c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru (sizeof(struct group_filter) - sizeof(struct __kernel_sockaddr_storage) \ 167c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru + (numsrc) * sizeof(struct __kernel_sockaddr_storage)) 168c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 169c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct in_pktinfo 170c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 171c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int ipi_ifindex; 172c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct in_addr ipi_spec_dst; 173c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct in_addr ipi_addr; 174c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 175c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 176c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Structure describing an Internet (IP) socket address. */ 177c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define __SOCK_SIZE__ 16 /* sizeof(struct sockaddr) */ 178c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct sockaddr_in { 179c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru sa_family_t sin_family; /* Address family */ 180c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short int sin_port; /* Port number */ 181c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct in_addr sin_addr; /* Internet address */ 182c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 183c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* Pad to size of `struct sockaddr'. */ 184c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned char __pad[__SOCK_SIZE__ - sizeof(short int) - 185c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru sizeof(unsigned short int) - sizeof(struct in_addr)]; 186c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 187c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define sin_zero __pad /* for BSD UNIX comp. -FvK */ 188c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 189c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 190c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 191c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Definitions of the bits in an Internet address integer. 192c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * On subnets, host and network parts are found according 193c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * to the subnet mask, not these masks. 194c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 195c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSA(a) ((((long int) (a)) & 0x80000000) == 0) 196c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSA_NET 0xff000000 197c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSA_NSHIFT 24 198c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) 199c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSA_MAX 128 200c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 201c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSB(a) ((((long int) (a)) & 0xc0000000) == 0x80000000) 202c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSB_NET 0xffff0000 203c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSB_NSHIFT 16 204c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) 205c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSB_MAX 65536 206c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 207c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSC(a) ((((long int) (a)) & 0xe0000000) == 0xc0000000) 208c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSC_NET 0xffffff00 209c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSC_NSHIFT 8 210c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) 211c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 212c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_CLASSD(a) ((((long int) (a)) & 0xf0000000) == 0xe0000000) 213c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_MULTICAST(a) IN_CLASSD(a) 214c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_MULTICAST_NET 0xF0000000 215c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 216c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_EXPERIMENTAL(a) ((((long int) (a)) & 0xf0000000) == 0xf0000000) 217c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_BADCLASS(a) IN_EXPERIMENTAL((a)) 218c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 219c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Address to accept any incoming messages. */ 220c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define INADDR_ANY ((unsigned long int) 0x00000000) 221c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 222c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Address to send to all hosts. */ 223c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define INADDR_BROADCAST ((unsigned long int) 0xffffffff) 224c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 225c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Address indicating an error return. */ 226c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define INADDR_NONE ((unsigned long int) 0xffffffff) 227c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 228c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Network number for local host loopback. */ 229c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_LOOPBACKNET 127 230c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 231c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Address to loopback in software to local host. */ 232c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define INADDR_LOOPBACK 0x7f000001 /* 127.0.0.1 */ 233c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IN_LOOPBACK(a) ((((long int) (a)) & 0xff000000) == 0x7f000000) 234c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 235c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Defines for Multicast INADDR */ 236c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define INADDR_UNSPEC_GROUP 0xe0000000U /* 224.0.0.0 */ 237c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define INADDR_ALLHOSTS_GROUP 0xe0000001U /* 224.0.0.1 */ 238c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define INADDR_ALLRTRS_GROUP 0xe0000002U /* 224.0.0.2 */ 239c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define INADDR_MAX_LOCAL_GROUP 0xe00000ffU /* 224.0.0.255 */ 240c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 241c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 242c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* <asm/byteorder.h> contains the htonl type stuff.. */ 243c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <asm/byteorder.h> 244c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 245c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef __KERNEL__ 246c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Some random defines to make it easier in the kernel.. */ 247c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define LOOPBACK(x) (((x) & htonl(0xff000000)) == htonl(0x7f000000)) 248c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MULTICAST(x) (((x) & htonl(0xf0000000)) == htonl(0xe0000000)) 249c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define BADCLASS(x) (((x) & htonl(0xf0000000)) == htonl(0xf0000000)) 250c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ZERONET(x) (((x) & htonl(0xff000000)) == htonl(0x00000000)) 251c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define LOCAL_MCAST(x) (((x) & htonl(0xFFFFFF00)) == htonl(0xE0000000)) 252c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 253c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 254c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 255c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif /* _LINUX_IN_H */ 256