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/* @(#)in.h 1.19 90/07/27 SMI; from UCB 7.5 2/22/88 */
/*
* Copyright (c) 1982, 1986 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of California at Berkeley. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
/*
* Constants and structures defined by the internet system,
* Per RFC 790, September 1981.
*/
#ifndef _netinet_in_h
#define _netinet_in_h
/*
* Protocols
*/
#define IPPROTO_IP 0 /* dummy for IP */
#define IPPROTO_ICMP 1 /* control message protocol */
#define IPPROTO_IGMP 2 /* group control protocol */
#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
#define IPPROTO_ST 5 /* st */
#define IPPROTO_TCP 6 /* tcp */
#define IPPROTO_EGP 8 /* exterior gateway protocol */
#define IPPROTO_PUP 12 /* pup */
#define IPPROTO_UDP 17 /* user datagram protocol */
#define IPPROTO_IDP 22 /* xns idp */
#define IPPROTO_HELLO 63 /* "hello" routing protocol */
#define IPPROTO_ND 77 /* UNOFFICIAL net disk proto */
#define IPPROTO_OSPF 89 /* Open SPF IGP */
#define IPPROTO_RAW 255 /* raw IP packet */
#define IPPROTO_MAX 256
/*
* Port/socket numbers: network standard functions
*/
#define IPPORT_ECHO 7
#define IPPORT_DISCARD 9
#define IPPORT_SYSTAT 11
#define IPPORT_DAYTIME 13
#define IPPORT_NETSTAT 15
#define IPPORT_FTP 21
#define IPPORT_TELNET 23
#define IPPORT_SMTP 25
#define IPPORT_TIMESERVER 37
#define IPPORT_NAMESERVER 42
#define IPPORT_WHOIS 43
#define IPPORT_MTP 57
/*
* Port/socket numbers: host specific functions
*/
#define IPPORT_TFTP 69
#define IPPORT_RJE 77
#define IPPORT_FINGER 79
#define IPPORT_TTYLINK 87
#define IPPORT_SUPDUP 95
/*
* UNIX TCP sockets
*/
#define IPPORT_EXECSERVER 512
#define IPPORT_LOGINSERVER 513
#define IPPORT_CMDSERVER 514
#define IPPORT_EFSSERVER 520
/*
* UNIX UDP sockets
*/
#define IPPORT_BIFFUDP 512
#define IPPORT_WHOSERVER 513
#define IPPORT_ROUTESERVER 520 /* 520+1 also used */
/*
* Ports < IPPORT_RESERVED are reserved for
* privileged processes (e.g. root).
* Ports > IPPORT_USERRESERVED are reserved
* for servers, not necessarily privileged.
*/
#define IPPORT_RESERVED 1024
#define IPPORT_USERRESERVED 5000
/*
* Link numbers
*/
#define IMPLINK_IP 155
#define IMPLINK_LOWEXPER 156
#define IMPLINK_HIGHEXPER 158
/*
* Internet address
* This definition contains obsolete fields for compatibility
* with SunOS 3.x and 4.2bsd. The presence of subnets renders
* divisions into fixed fields misleading at best. New code
* should use only the s_addr field.
*/
struct in_addr {
union {
struct { u_char s_b1,s_b2,s_b3,s_b4; } S_un_b;
struct { u_short s_w1,s_w2; } S_un_w;
u_long S_addr;
} S_un;
#define s_addr S_un.S_addr /* should be used for all code */
#define s_host S_un.S_un_b.s_b2 /* OBSOLETE: host on imp */
#define s_net S_un.S_un_b.s_b1 /* OBSOLETE: network */
#define s_imp S_un.S_un_w.s_w2 /* OBSOLETE: imp */
#define s_impno S_un.S_un_b.s_b4 /* OBSOLETE: imp # */
#define s_lh S_un.S_un_b.s_b3 /* OBSOLETE: logical host */
};
/*
* Definitions of bits in internet address integers.
* On subnets, the decomposition of addresses to host and net parts
* is done according to subnet mask, not the masks here.
*/
#define IN_CLASSA(i) (((long)(i) & 0x80000000) == 0)
#define IN_CLASSA_NET 0xff000000
#define IN_CLASSA_NSHIFT 24
#define IN_CLASSA_HOST 0x00ffffff
#define IN_CLASSA_MAX 128
#define IN_CLASSB(i) (((long)(i) & 0xc0000000) == 0x80000000)
#define IN_CLASSB_NET 0xffff0000
#define IN_CLASSB_NSHIFT 16
#define IN_CLASSB_HOST 0x0000ffff
#define IN_CLASSB_MAX 65536
#define IN_CLASSC(i) (((long)(i) & 0xe0000000) == 0xc0000000)
#define IN_CLASSC_NET 0xffffff00
#define IN_CLASSC_NSHIFT 8
#define IN_CLASSC_HOST 0x000000ff
#define IN_CLASSD(i) (((long)(i) & 0xf0000000) == 0xe0000000)
#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
#define IN_MULTICAST(i) IN_CLASSD(i)
#define IN_EXPERIMENTAL(i) (((long)(i) & 0xe0000000) == 0xe0000000)
#define IN_BADCLASS(i) (((long)(i) & 0xf0000000) == 0xf0000000)
#define INADDR_ANY (u_long)0x00000000
#define INADDR_LOOPBACK (u_long)0x7F000001
#define INADDR_BROADCAST (u_long)0xffffffff /* must be masked */
#define INADDR_UNSPEC_GROUP (u_long)0xe0000000 /* 224.0.0.0 */
#define INADDR_ALLHOSTS_GROUP (u_long)0xe0000001 /* 224.0.0.1 */
#define INADDR_MAX_LOCAL_GROUP (u_long)0xe00000ff /* 224.0.0.255 */
#define IN_LOOPBACKNET 127 /* official! */
/*
* Define a macro to stuff the loopback address into an Internet address
*/
#define IN_SET_LOOPBACK_ADDR(a) {(a)->sin_addr.s_addr = htonl(INADDR_LOOPBACK); \
(a)->sin_family = AF_INET;}
/*
* Socket address, internet style.
*/
struct sockaddr_in {
short sin_family;
u_short sin_port;
struct in_addr sin_addr;
char sin_zero[8];
};
/*
* Options for use with [gs]etsockopt at the IP level.
*/
#define IP_OPTIONS 1 /* set/get IP per-packet options */
#define IP_MULTICAST_IF 2 /* set/get IP multicast interface */
#define IP_MULTICAST_TTL 3 /* set/get IP multicast timetolive */
#define IP_MULTICAST_LOOP 4 /* set/get IP multicast loopback */
#define IP_ADD_MEMBERSHIP 5 /* add an IP group membership */
#define IP_DROP_MEMBERSHIP 6 /* drop an IP group membership */
#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
#define IP_MAX_MEMBERSHIPS 20 /* per socket; must fit in one mbuf */
/*
* Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
*/
struct ip_mreq {
struct in_addr imr_multiaddr; /* IP multicast address of group */
struct in_addr imr_interface; /* local IP address of interface */
};
#if !defined(vax) && !defined(ntohl) && !defined(i386)
/*
* Macros for number representation conversion.
*/
#define ntohl(x) (x)
#define ntohs(x) (x)
#define htonl(x) (x)
#define htons(x) (x)
#endif
#if !defined(ntohl) && (defined(vax) || defined(i386))
u_short ntohs(), htons();
u_int32 ntohl(), htonl();
#endif
#ifdef KERNEL
extern struct domain inetdomain;
extern struct protosw inetsw[];
struct in_addr in_makeaddr();
u_long in_netof(), in_lnaof();
#endif
#ifndef BYTE_ORDER
/*
* Definitions for byte order,
* according to byte significance from low address to high.
*/
#define LITTLE_ENDIAN 1234 /* least-significant byte first (vax) */
#define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */
#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */
#if defined(vax) || defined(i386)
#define BYTE_ORDER LITTLE_ENDIAN
#else
#define BYTE_ORDER BIG_ENDIAN /* mc68000, tahoe, most others */
#endif
#endif BYTE_ORDER
/*
* Macros for number representation conversion.
*/
#if BYTE_ORDER==LITTLE_ENDIAN
#define NTOHL(d) ((d) = ntohl((d)))
#define NTOHS(d) ((d) = ntohs((d)))
#define HTONL(d) ((d) = htonl((d)))
#define HTONS(d) ((d) = htons((d)))
#else
#define ntohl(x) (x)
#define ntohs(x) (x)
#define htonl(x) (x)
#define htons(x) (x)
#define NTOHL(d)
#define NTOHS(d)
#define HTONL(d)
#define HTONS(d)
#endif
#endif /*!_netinet_in_h*/
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