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      1 /*
      2  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
      3  * Use is subject to license terms.
      4  *
      5  * Copyright (c) 1982, 1986 Regents of the University of California.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms are permitted
      9  * provided that this notice is preserved and that due credit is given
     10  * to the University of California at Berkeley. The name of the University
     11  * may not be used to endorse or promote products derived from this
     12  * software without specific prior written permission. This software
     13  * is provided ``as is'' without express or implied warranty.
     14  */
     15 
     16 /*
     17  * Constants and structures defined by the internet system,
     18  * Per RFC 790, September 1981.
     19  */
     20 
     21 #ifndef _netinet_in_h
     22 #define	_netinet_in_h
     23 
     24 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     25 
     26 /*
     27  * Protocols
     28  */
     29 #define	IPPROTO_IP		0		/* dummy for IP */
     30 #define	IPPROTO_ICMP		1		/* control message protocol */
     31 #define IPPROTO_IGMP		2		/* group control protocol */
     32 #define	IPPROTO_GGP		3		/* gateway^2 (deprecated) */
     33 #define	IPPROTO_TCP		6		/* tcp */
     34 #define	IPPROTO_EGP		8		/* exterior gateway protocol */
     35 #define	IPPROTO_PUP		12		/* pup */
     36 #define	IPPROTO_UDP		17		/* user datagram protocol */
     37 #define	IPPROTO_IDP		22		/* xns idp */
     38 #define IPPROTO_HELLO		63		/* "hello" routing protocol */
     39 #define	IPPROTO_ND		77		/* UNOFFICIAL net disk proto */
     40 
     41 #define	IPPROTO_RAW		255		/* raw IP packet */
     42 #define	IPPROTO_MAX		256
     43 
     44 /*
     45  * Port/socket numbers: network standard functions
     46  */
     47 #define	IPPORT_ECHO		7
     48 #define	IPPORT_DISCARD		9
     49 #define	IPPORT_SYSTAT		11
     50 #define	IPPORT_DAYTIME		13
     51 #define	IPPORT_NETSTAT		15
     52 #define	IPPORT_FTP		21
     53 #define	IPPORT_TELNET		23
     54 #define	IPPORT_SMTP		25
     55 #define	IPPORT_TIMESERVER	37
     56 #define	IPPORT_NAMESERVER	42
     57 #define	IPPORT_WHOIS		43
     58 #define	IPPORT_MTP		57
     59 
     60 /*
     61  * Port/socket numbers: host specific functions
     62  */
     63 #define	IPPORT_TFTP		69
     64 #define	IPPORT_RJE		77
     65 #define	IPPORT_FINGER		79
     66 #define	IPPORT_TTYLINK		87
     67 #define	IPPORT_SUPDUP		95
     68 
     69 /*
     70  * UNIX TCP sockets
     71  */
     72 #define	IPPORT_EXECSERVER	512
     73 #define	IPPORT_LOGINSERVER	513
     74 #define	IPPORT_CMDSERVER	514
     75 #define	IPPORT_EFSSERVER	520
     76 
     77 /*
     78  * UNIX UDP sockets
     79  */
     80 #define	IPPORT_BIFFUDP		512
     81 #define	IPPORT_WHOSERVER	513
     82 #define	IPPORT_ROUTESERVER	520	/* 520+1 also used */
     83 
     84 /*
     85  * Ports < IPPORT_RESERVED are reserved for
     86  * privileged processes (e.g. root).
     87  * Ports > IPPORT_USERRESERVED are reserved
     88  * for servers, not necessarily privileged.
     89  */
     90 #define	IPPORT_RESERVED		1024
     91 #define	IPPORT_USERRESERVED	5000
     92 
     93 /*
     94  * Link numbers
     95  */
     96 #define	IMPLINK_IP		155
     97 #define	IMPLINK_LOWEXPER	156
     98 #define	IMPLINK_HIGHEXPER	158
     99 
    100 /*
    101  * Internet address
    102  *	This definition contains obsolete fields for compatibility
    103  *	with SunOS 3.x and 4.2bsd.  The presence of subnets renders
    104  *	divisions into fixed fields misleading at best.  New code
    105  *	should use only the s_addr field.
    106  */
    107 struct in_addr {
    108 	union {
    109 		struct { u_char s_b1,s_b2,s_b3,s_b4; } S_un_b;
    110 		struct { u_short s_w1,s_w2; } S_un_w;
    111 		u_long S_addr;
    112 	} S_un;
    113 #define	s_addr	S_un.S_addr		/* should be used for all code */
    114 #define	s_host	S_un.S_un_b.s_b2	/* OBSOLETE: host on imp */
    115 #define	s_net	S_un.S_un_b.s_b1	/* OBSOLETE: network */
    116 #define	s_imp	S_un.S_un_w.s_w2	/* OBSOLETE: imp */
    117 #define	s_impno	S_un.S_un_b.s_b4	/* OBSOLETE: imp # */
    118 #define	s_lh	S_un.S_un_b.s_b3	/* OBSOLETE: logical host */
    119 };
    120 
    121 /*
    122  * Definitions of bits in internet address integers.
    123  * On subnets, the decomposition of addresses to host and net parts
    124  * is done according to subnet mask, not the masks here.
    125  *
    126  * Note that with the introduction of CIDR, IN_CLASSA, IN_CLASSB,
    127  * IN_CLASSC, IN_CLASSD and IN_CLASSE macros have become "de-facto obsolete".
    128  * IN_MULTICAST macro should be used to test if a address is a
    129  * multicast address.
    130  */
    131 #define	IN_CLASSA(i)		(((long)(i) & 0x80000000) == 0)
    132 #define	IN_CLASSA_NET		0xff000000
    133 #define	IN_CLASSA_NSHIFT	24
    134 #define	IN_CLASSA_HOST		0x00ffffff
    135 #define	IN_CLASSA_MAX		128
    136 
    137 #define	IN_CLASSB(i)		(((long)(i) & 0xc0000000) == 0x80000000)
    138 #define	IN_CLASSB_NET		0xffff0000
    139 #define	IN_CLASSB_NSHIFT	16
    140 #define	IN_CLASSB_HOST		0x0000ffff
    141 #define	IN_CLASSB_MAX		65536
    142 
    143 #define	IN_CLASSC(i)		(((long)(i) & 0xe0000000) == 0xc0000000)
    144 #define	IN_CLASSC_NET		0xffffff00
    145 #define	IN_CLASSC_NSHIFT	8
    146 #define	IN_CLASSC_HOST		0x000000ff
    147 
    148 #define	IN_CLASSD(i)		(((long)(i) & 0xf0000000) == 0xe0000000)
    149 #define	IN_MULTICAST(i)		IN_CLASSD(i)
    150 
    151 #define	IN_CLASSE(i)		(((long)(i) & 0xf0000000) == 0xf0000000)
    152 
    153 #define	IN_CLASSE_NET		0xffffffff
    154 
    155 /*
    156  * We have removed CLASS E checks from the kernel
    157  * But we preserve these defines for userland  in order
    158  * to avoid compile  breakage of some 3rd party piece of software
    159  */
    160 #ifndef	KERNEL
    161 #define	IN_EXPERIMENTAL(i)	(((long)(i) & 0xe0000000) == 0xe0000000)
    162 #define	IN_BADCLASS(i)		(((long)(i) & 0xf0000000) == 0xf0000000)
    163 #endif
    164 
    165 #define	INADDR_ANY		(u_long)0x00000000
    166 #define	INADDR_LOOPBACK		(u_long)0x7F000001
    167 #define	INADDR_BROADCAST	(u_long)0xffffffff	/* must be masked */
    168 
    169 #define	IN_LOOPBACKNET		127			/* official! */
    170 
    171 /*
    172  * Define a macro to stuff the loopback address into an Internet address
    173  */
    174 #define IN_SET_LOOPBACK_ADDR(a)	{(a)->sin_addr.s_addr  = htonl(INADDR_LOOPBACK); \
    175 	(a)->sin_family = AF_INET;}
    176 
    177 /*
    178  * Socket address, internet style.
    179  */
    180 struct sockaddr_in {
    181 	short	sin_family;
    182 	u_short	sin_port;
    183 	struct	in_addr sin_addr;
    184 	char	sin_zero[8];
    185 };
    186 
    187 /*
    188  * Options for use with [gs]etsockopt at the IP level.
    189  */
    190 #define	IP_OPTIONS	1		/* set/get IP per-packet options */
    191 
    192 #if !defined(vax) && !defined(ntohl) && !defined(lint) && !defined(i386)
    193 /*
    194  * Macros for number representation conversion.
    195  */
    196 #define	ntohl(x)	(x)
    197 #define	ntohs(x)	(x)
    198 #define	htonl(x)	(x)
    199 #define	htons(x)	(x)
    200 #endif
    201 
    202 #if !defined(ntohl) && (defined(vax) || defined(lint) || defined(i386))
    203 u_short	ntohs(), htons();
    204 u_long	ntohl(), htonl();
    205 #endif
    206 
    207 #ifdef KERNEL
    208 extern	struct domain inetdomain;
    209 extern	struct protosw inetsw[];
    210 struct	in_addr in_makeaddr();
    211 u_long	in_netof(), in_lnaof();
    212 #endif
    213 
    214 #endif /* !_netinet_in_h */
    215