| 1 | /* Modified for emx by hv and em 1994,1996
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| 2 | *
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| 3 | * Copyright (c) 1982, 1986, 1990 Regents of the University of California.
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | * 1. Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * 3. All advertising materials mentioning features or use of this software
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| 15 | * must display the following acknowledgement:
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| 16 | * This product includes software developed by the University of
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| 17 | * California, Berkeley and its contributors.
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| 18 | * 4. Neither the name of the University nor the names of its contributors
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| 19 | * may be used to endorse or promote products derived from this software
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| 20 | * without specific prior written permission.
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| 21 | *
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 32 | * SUCH DAMAGE.
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| 33 | *
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| 34 | * from: @(#)in.h 7.11 (Berkeley) 4/20/91
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| 35 | * $Id: in.h,v 1.8 1994/01/28 13:46:02 deraadt Exp $
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| 36 | */
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| 37 |
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| 38 | #ifndef _NETINET_IN_H_
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| 39 | #define _NETINET_IN_H_
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| 40 |
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| 41 | #ifndef _EMX_TCPIP
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| 42 | #define _EMX_TCPIP
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| 43 | #endif
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| 44 |
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| 45 | #include <sys/param.h> /* htons() etc. */
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| 46 |
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| 47 | #if defined (__cplusplus)
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| 48 | extern "C" {
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| 49 | #endif
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| 50 |
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| 51 | /*
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| 52 | * Constants and structures defined by the internet system,
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| 53 | * Per RFC 790, September 1981.
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| 54 | */
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| 55 |
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| 56 | /*
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| 57 | * Protocols
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| 58 | */
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| 59 | #define IPPROTO_IP 0 /* dummy for IP */
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| 60 | #define IPPROTO_ICMP 1 /* control message protocol */
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| 61 | #define IPPROTO_IGMP 2 /* group mgmt protocol */
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| 62 | #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
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| 63 | #define IPPROTO_TCP 6 /* tcp */
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| 64 | #define IPPROTO_EGP 8 /* exterior gateway protocol */
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| 65 | #define IPPROTO_PUP 12 /* pup */
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| 66 | #define IPPROTO_UDP 17 /* user datagram protocol */
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| 67 | #define IPPROTO_IDP 22 /* xns idp */
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| 68 | #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
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| 69 | #define IPPROTO_EON 80 /* ISO cnlp */
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| 70 |
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| 71 | #define IPPROTO_RAW 255 /* raw IP packet */
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| 72 | #define IPPROTO_MAX 256
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| 73 |
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| 74 |
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| 75 | /*
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| 76 | * Local port number conventions:
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| 77 | * Ports < IPPORT_RESERVED are reserved for
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| 78 | * privileged processes (e.g. root).
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| 79 | * Ports > IPPORT_USERRESERVED are reserved
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| 80 | * for servers, not necessarily privileged.
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| 81 | */
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| 82 | #define IPPORT_RESERVED 1024
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| 83 | #define IPPORT_USERRESERVED 5000
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| 84 |
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| 85 | /*
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| 86 | * Internet address (a structure for historical reasons)
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| 87 | */
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| 88 | struct in_addr {
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| 89 | u_long s_addr;
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| 90 | };
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| 91 |
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| 92 | /*
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| 93 | * Definitions of bits in internet address integers.
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| 94 | * On subnets, the decomposition of addresses to host and net parts
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| 95 | * is done according to subnet mask, not the masks here.
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| 96 | */
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| 97 | #define IN_CLASSA(i) (((long)(i) & 0x80000000) == 0)
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| 98 | #define IN_CLASSA_NET 0xff000000
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| 99 | #define IN_CLASSA_NSHIFT 24
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| 100 | #define IN_CLASSA_HOST 0x00ffffff
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| 101 | #define IN_CLASSA_MAX 128
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| 102 |
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| 103 | #define IN_CLASSB(i) (((long)(i) & 0xc0000000) == 0x80000000)
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| 104 | #define IN_CLASSB_NET 0xffff0000
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| 105 | #define IN_CLASSB_NSHIFT 16
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| 106 | #define IN_CLASSB_HOST 0x0000ffff
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| 107 | #define IN_CLASSB_MAX 65536
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| 108 |
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| 109 | #define IN_CLASSC(i) (((long)(i) & 0xe0000000) == 0xc0000000)
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| 110 | #define IN_CLASSC_NET 0xffffff00
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| 111 | #define IN_CLASSC_NSHIFT 8
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| 112 | #define IN_CLASSC_HOST 0x000000ff
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| 113 |
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| 114 | #define IN_CLASSD(i) (((long)(i) & 0xf0000000) == 0xe0000000)
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| 115 | #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
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| 116 | #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
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| 117 | #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
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| 118 | #define IN_MULTICAST(i) IN_CLASSD(i)
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| 119 |
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| 120 | #define IN_EXPERIMENTAL(i) (((long)(i) & 0xe0000000) == 0xe0000000)
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| 121 | #define IN_BADCLASS(i) (((long)(i) & 0xf0000000) == 0xf0000000)
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| 122 |
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| 123 | #define INADDR_ANY (u_long)0x00000000
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| 124 | #define INADDR_LOOPBACK (u_long)0x7f000001
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| 125 | #define INADDR_BROADCAST (u_long)0xffffffff /* must be masked */
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| 126 | #ifndef KERNEL
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| 127 | #define INADDR_NONE 0xffffffff /* -1 return */
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| 128 | #endif
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| 129 |
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| 130 | #define INADDR_UNSPEC_GROUP (u_long)0xe0000000 /* 224.0.0.0 */
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| 131 | #define INADDR_ALLHOSTS_GROUP (u_long)0xe0000001 /* 224.0.0.1 */
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| 132 | #define INADDR_MAX_LOCAL_GROUP (u_long)0xe00000ff /* 224.0.0.255 */
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| 133 |
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| 134 | #define IN_LOOPBACKNET 127 /* official! */
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| 135 |
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| 136 | /*
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| 137 | * Define a macro to stuff the loopback address into an Internet address
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| 138 | */
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| 139 | #define IN_SET_LOOPBACK_ADDR(a) { \
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| 140 | (a)->sin_addr.s_addr = htonl(INADDR_LOOPBACK); \
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| 141 | (a)->sin_family = AF_INET; }
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| 142 | /*
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| 143 | * Socket address, internet style. 4.3BSD
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| 144 | */
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| 145 | struct sockaddr_in {
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| 146 | short sin_family;
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| 147 | u_short sin_port;
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| 148 | struct in_addr sin_addr;
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| 149 | char sin_zero[8];
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| 150 | };
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| 151 |
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| 152 | /*
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| 153 | * Structure used to describe IP options.
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| 154 | * Used to store options internally, to pass them to a process,
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| 155 | * or to restore options retrieved earlier.
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| 156 | * The ip_dst is used for the first-hop gateway when using a source route
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| 157 | * (this gets put into the header proper).
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| 158 | */
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| 159 | struct ip_opts {
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| 160 | struct in_addr ip_dst; /* first hop, 0 w/o src rt */
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| 161 | char ip_opts[40]; /* actually variable in size */
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| 162 | };
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| 163 |
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| 164 | /*
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| 165 | * Options for use with [gs]etsockopt at the IP level.
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| 166 | * First word of comment is data type; bool is stored in int.
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| 167 | */
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| 168 | #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
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| 169 |
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| 170 | #define IP_MULTICAST_IF 2 /* u_char; set/get IP mcast i/f */
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| 171 | #define IP_MULTICAST_TTL 3 /* u_char; set/get IP mcast ttl */
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| 172 | #define IP_MULTICAST_LOOP 4 /* u_char; set/get IP mcast loopback */
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| 173 | #define IP_ADD_MEMBERSHIP 5 /* ip_mreq; add IP group membership */
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| 174 | #define IP_DROP_MEMBERSHIP 6 /* ip_mreq; drop IP group membership */
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| 175 |
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| 176 | #ifndef __EMX__ /* not supported so far */
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| 177 | #define IP_HDRINCL 2 /* int; header is included with data */
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| 178 | #define IP_TOS 3 /* int; IP type of service and preced */
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| 179 | #define IP_TTL 4 /* int; IP time to live */
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| 180 | #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
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| 181 | #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
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| 182 | #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
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| 183 | #define IP_RETOPTS 8 /* ip_opts; set/get IP options */
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| 184 | #endif
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| 185 |
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| 186 | #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
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| 187 | #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
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| 188 | #define IP_MAX_MEMBERSHIPS 20 /* per socket; must fit in one mbuf */
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| 189 |
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| 190 | /*
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| 191 | * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
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| 192 | */
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| 193 | struct ip_mreq {
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| 194 | struct in_addr imr_multiaddr; /* IP multicast address of group */
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| 195 | struct in_addr imr_interface; /* local IP address of interface */
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| 196 | };
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| 197 |
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| 198 | /* prototypes for functions in inet(3) */
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| 199 | extern u_long inet_addr(__const__ char*);
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| 200 | extern struct in_addr inet_makeaddr(u_long, u_long);
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| 201 | extern u_long inet_network(__const__ char*);
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| 202 | extern char *inet_ntoa(struct in_addr);
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| 203 | extern u_long inet_netof(struct in_addr);
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| 204 | extern u_long inet_lnaof(struct in_addr);
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| 205 |
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| 206 | #if defined (__cplusplus)
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| 207 | }
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| 208 | #endif
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| 209 |
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| 210 | #endif /* !_NETINET_IN_H_ */
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