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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1982, 1986, 1990 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | * | |
38e82238 | 33 | * from: @(#)in.h 7.11 (Berkeley) 4/20/91 |
fde1aeb2 | 34 | * $Id: in.h,v 1.3 1993/10/16 18:25:58 rgrimes Exp $ |
15637ed4 RG |
35 | */ |
36 | ||
eede8c2a JH |
37 | #ifndef _NETINET_IN_H_ |
38 | #define _NETINET_IN_H_ | |
39 | ||
15637ed4 RG |
40 | /* |
41 | * Constants and structures defined by the internet system, | |
42 | * Per RFC 790, September 1981. | |
43 | */ | |
44 | ||
45 | /* | |
46 | * Protocols | |
47 | */ | |
48 | #define IPPROTO_IP 0 /* dummy for IP */ | |
49 | #define IPPROTO_ICMP 1 /* control message protocol */ | |
50 | #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ | |
51 | #define IPPROTO_TCP 6 /* tcp */ | |
52 | #define IPPROTO_EGP 8 /* exterior gateway protocol */ | |
53 | #define IPPROTO_PUP 12 /* pup */ | |
54 | #define IPPROTO_UDP 17 /* user datagram protocol */ | |
55 | #define IPPROTO_IDP 22 /* xns idp */ | |
56 | #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ | |
57 | #define IPPROTO_EON 80 /* ISO cnlp */ | |
58 | ||
59 | #define IPPROTO_RAW 255 /* raw IP packet */ | |
60 | #define IPPROTO_MAX 256 | |
61 | ||
62 | ||
63 | /* | |
64 | * Local port number conventions: | |
65 | * Ports < IPPORT_RESERVED are reserved for | |
66 | * privileged processes (e.g. root). | |
67 | * Ports > IPPORT_USERRESERVED are reserved | |
68 | * for servers, not necessarily privileged. | |
69 | */ | |
70 | #define IPPORT_RESERVED 1024 | |
71 | #define IPPORT_USERRESERVED 5000 | |
72 | ||
73 | /* | |
74 | * Internet address (a structure for historical reasons) | |
75 | */ | |
76 | struct in_addr { | |
77 | u_long s_addr; | |
78 | }; | |
79 | ||
80 | /* | |
81 | * Definitions of bits in internet address integers. | |
82 | * On subnets, the decomposition of addresses to host and net parts | |
83 | * is done according to subnet mask, not the masks here. | |
84 | */ | |
fde1aeb2 GW |
85 | #define IN_CLASSA(i) (((u_long)(i) & 0x80000000UL) == 0) |
86 | #define IN_CLASSA_NET 0xff000000UL | |
15637ed4 | 87 | #define IN_CLASSA_NSHIFT 24 |
fde1aeb2 | 88 | #define IN_CLASSA_HOST 0x00ffffffUL |
15637ed4 RG |
89 | #define IN_CLASSA_MAX 128 |
90 | ||
fde1aeb2 GW |
91 | #define IN_CLASSB(i) (((u_long)(i) & 0xc0000000UL) == 0x80000000UL) |
92 | #define IN_CLASSB_NET 0xffff0000UL | |
15637ed4 | 93 | #define IN_CLASSB_NSHIFT 16 |
fde1aeb2 | 94 | #define IN_CLASSB_HOST 0x0000ffffUL |
15637ed4 RG |
95 | #define IN_CLASSB_MAX 65536 |
96 | ||
fde1aeb2 GW |
97 | #define IN_CLASSC(i) (((u_long)(i) & 0xe0000000UL) == 0xc0000000UL) |
98 | #define IN_CLASSC_NET 0xffffff00UL | |
15637ed4 | 99 | #define IN_CLASSC_NSHIFT 8 |
fde1aeb2 | 100 | #define IN_CLASSC_HOST 0x000000ffUL |
15637ed4 | 101 | |
fde1aeb2 | 102 | #define IN_CLASSD(i) (((u_long)(i) & 0xf0000000UL) == 0xe0000000UL) |
15637ed4 RG |
103 | #define IN_MULTICAST(i) IN_CLASSD(i) |
104 | ||
fde1aeb2 GW |
105 | #define IN_EXPERIMENTAL(i) (((u_long)(i) & 0xe0000000UL) == 0xe0000000UL) |
106 | #define IN_BADCLASS(i) (((u_long)(i) & 0xf0000000UL) == 0xf0000000UL) | |
15637ed4 | 107 | |
fde1aeb2 GW |
108 | #define INADDR_ANY 0x00000000UL |
109 | #define INADDR_BROADCAST 0xffffffffUL /* must be masked */ | |
15637ed4 | 110 | #ifndef KERNEL |
fde1aeb2 | 111 | #define INADDR_NONE 0xffffffffUL /* -1 return */ |
15637ed4 RG |
112 | #endif |
113 | ||
114 | #define IN_LOOPBACKNET 127 /* official! */ | |
115 | ||
116 | /* | |
117 | * Socket address, internet style. | |
118 | */ | |
119 | struct sockaddr_in { | |
120 | u_char sin_len; | |
121 | u_char sin_family; | |
122 | u_short sin_port; | |
123 | struct in_addr sin_addr; | |
124 | char sin_zero[8]; | |
125 | }; | |
126 | ||
127 | /* | |
128 | * Structure used to describe IP options. | |
129 | * Used to store options internally, to pass them to a process, | |
130 | * or to restore options retrieved earlier. | |
131 | * The ip_dst is used for the first-hop gateway when using a source route | |
132 | * (this gets put into the header proper). | |
133 | */ | |
134 | struct ip_opts { | |
135 | struct in_addr ip_dst; /* first hop, 0 w/o src rt */ | |
136 | char ip_opts[40]; /* actually variable in size */ | |
137 | }; | |
138 | ||
139 | /* | |
140 | * Options for use with [gs]etsockopt at the IP level. | |
141 | * First word of comment is data type; bool is stored in int. | |
142 | */ | |
143 | #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP per-packet options */ | |
144 | #define IP_HDRINCL 2 /* int; header is included with data (raw) */ | |
145 | #define IP_TOS 3 /* int; IP type of service and precedence */ | |
146 | #define IP_TTL 4 /* int; IP time to live */ | |
147 | #define IP_RECVOPTS 5 /* bool; receive all IP options w/datagram */ | |
148 | #define IP_RECVRETOPTS 6 /* bool; receive IP options for response */ | |
149 | #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/datagram */ | |
150 | #define IP_RETOPTS 8 /* ip_opts; set/get IP per-packet options */ | |
151 | ||
152 | #ifdef KERNEL | |
fde1aeb2 GW |
153 | /* From in.c: */ |
154 | extern struct in_addr in_makeaddr(u_long, u_long); | |
155 | extern u_long in_netof(struct in_addr); | |
156 | extern void in_sockmaskof(struct in_addr, struct sockaddr_in *); | |
157 | extern u_long in_lnaof(struct in_addr); | |
158 | extern int in_localaddr(struct in_addr); | |
159 | extern int in_canforward(struct in_addr); | |
160 | struct socket; struct ifnet; | |
161 | extern int in_control(struct socket *, int, caddr_t, struct ifnet *); | |
162 | struct in_ifaddr; | |
163 | extern int in_broadcast(struct in_addr); | |
164 | ||
165 | #endif /* KERNEL */ | |
eede8c2a JH |
166 | |
167 | #endif /* _NETINET_IN_H_ */ |