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- /*
- * Copyright (c) 1982, 1986, 1990 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution is only permitted until one year after the first shipment
- * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and
- * binary forms are permitted provided that: (1) source distributions retain
- * this entire copyright notice and comment, and (2) distributions including
- * binaries display the following acknowledgement: This product includes
- * software developed by the University of California, Berkeley and its
- * contributors'' in the documentation or other materials provided with the
- * distribution and in all advertising materials mentioning features or use
- * of this software. Neither the name of the University nor the names of
- * its contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * @(#)in.h 7.10 (Berkeley) 6/28/90
- */
-
- /*
- * Constants and structures defined by the internet system,
- * Per RFC 790, September 1981.
- */
-
- /*
- * Protocols
- */
- #define IPPROTO_IP 0 /* dummy for IP */
- #define IPPROTO_ICMP 1 /* control message protocol */
- #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
- #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_TP 29 /* tp-4 w/ class negotiation */
- #define IPPROTO_EON 80 /* ISO cnlp */
-
- #define IPPROTO_RAW 255 /* raw IP packet */
- #define IPPROTO_MAX 256
-
-
- /*
- * Local port number conventions:
- * 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
-
- /*
- * Internet address (a structure for historical reasons)
- */
- struct in_addr {
- u_long s_addr;
- };
-
- /*
- * 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_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_BROADCAST (u_long)0xffffffff /* must be masked */
- #ifndef KERNEL
- #define INADDR_NONE 0xffffffff /* -1 return */
- #endif
-
- #define IN_LOOPBACKNET 127 /* official! */
-
- /*
- * Socket address, internet style.
- */
- struct sockaddr_in {
- u_char sin_len;
- u_char sin_family;
- u_short sin_port;
- struct in_addr sin_addr;
- char sin_zero[8];
- };
-
- /*
- * Structure used to describe IP options.
- * Used to store options internally, to pass them to a process,
- * or to restore options retrieved earlier.
- * The ip_dst is used for the first-hop gateway when using a source route
- * (this gets put into the header proper).
- */
-
- #ifdef COMP_CODEWAR
- /** dgg, original...can't compile ip_opts { ... ip_opts }; in codewar ansi c */
- struct ip_opts {
- struct in_addr ip_dst; /* first hop, 0 w/o src rt */
- char ipOpts[40]; /* actually variable in size */
- };
- #else
- struct ip_opts {
- struct in_addr ip_dst;
- char ip_opts[40];
- };
- #endif
-
- /*
- * Options for use with [gs]etsockopt at the IP level.
- * First word of comment is data type; bool is stored in int.
- */
- #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP per-packet options */
- #define IP_HDRINCL 2 /* int; header is included with data (raw) */
- #define IP_TOS 3 /* int; IP type of service and precedence */
- #define IP_TTL 4 /* int; IP time to live */
- #define IP_RECVOPTS 5 /* bool; receive all IP options w/datagram */
- #define IP_RECVRETOPTS 6 /* bool; receive IP options for response */
- #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/datagram */
- #define IP_RETOPTS 8 /* ip_opts; set/get IP per-packet options */
-
- //
- // The network macros are in machine/endian.h for 4.3reno, but for
- // sun compatibility, I placed them here- Charlie Reiman
- //
- #define ntohl(x) x
- #define ntohs(x) x
- #define htonl(x) x
- #define htons(x) x
-
- #ifdef KERNEL
- extern struct domain inetdomain;
- extern struct protosw inetsw[];
- struct in_addr in_makeaddr();
- u_long in_netof(), in_lnaof();
- #endif
-