Commit | Line | Data |
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8ae0e4b4 | 1 | /* |
0880b18e | 2 | * Copyright (c) 1982, 1986 Regents of the University of California. |
2b6b6284 | 3 | * All rights reserved. |
8ae0e4b4 | 4 | * |
2b6b6284 KB |
5 | * Redistribution and use in source and binary forms are permitted |
6 | * provided that this notice is preserved and that due credit is given | |
7 | * to the University of California at Berkeley. The name of the University | |
8 | * may not be used to endorse or promote products derived from this | |
9 | * software without specific prior written permission. This software | |
10 | * is provided ``as is'' without express or implied warranty. | |
11 | * | |
8114dc67 | 12 | * @(#)in.h 7.5 (Berkeley) %G% |
8ae0e4b4 | 13 | */ |
8958351e BJ |
14 | |
15 | /* | |
16 | * Constants and structures defined by the internet system, | |
17 | * Per RFC 790, September 1981. | |
18 | */ | |
19 | ||
20 | /* | |
21 | * Protocols | |
22 | */ | |
55f549b4 | 23 | #define IPPROTO_IP 0 /* dummy for IP */ |
8958351e | 24 | #define IPPROTO_ICMP 1 /* control message protocol */ |
8114dc67 | 25 | #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ |
8958351e | 26 | #define IPPROTO_TCP 6 /* tcp */ |
c49e68cc | 27 | #define IPPROTO_EGP 8 /* exterior gateway protocol */ |
8958351e BJ |
28 | #define IPPROTO_PUP 12 /* pup */ |
29 | #define IPPROTO_UDP 17 /* user datagram protocol */ | |
55f549b4 | 30 | #define IPPROTO_IDP 22 /* xns idp */ |
8958351e | 31 | |
13ab51b7 | 32 | #define IPPROTO_RAW 255 /* raw IP packet */ |
eb44bfb2 BJ |
33 | #define IPPROTO_MAX 256 |
34 | ||
becdab37 BJ |
35 | |
36 | /* | |
37 | * Ports < IPPORT_RESERVED are reserved for | |
38 | * privileged processes (e.g. root). | |
f44e5691 MK |
39 | * Ports > IPPORT_USERRESERVED are reserved |
40 | * for servers, not necessarily privileged. | |
becdab37 | 41 | */ |
1aa87517 | 42 | #define IPPORT_RESERVED 1024 |
f44e5691 | 43 | #define IPPORT_USERRESERVED 5000 |
1aa87517 | 44 | |
8958351e BJ |
45 | /* |
46 | * Link numbers | |
47 | */ | |
48 | #define IMPLINK_IP 155 | |
49 | #define IMPLINK_LOWEXPER 156 | |
50 | #define IMPLINK_HIGHEXPER 158 | |
51 | ||
52 | /* | |
e4dfb782 | 53 | * Internet address (a structure for historical reasons) |
8958351e | 54 | */ |
2b4b57cd | 55 | struct in_addr { |
e4dfb782 | 56 | u_long s_addr; |
8958351e | 57 | }; |
2b4b57cd | 58 | |
ae34128e | 59 | /* |
a8d3bf7f | 60 | * Definitions of bits in internet address integers. |
14c6a3d7 MK |
61 | * On subnets, the decomposition of addresses to host and net parts |
62 | * is done according to subnet mask, not the masks here. | |
ae34128e | 63 | */ |
8011f5df | 64 | #define IN_CLASSA(i) (((long)(i) & 0x80000000) == 0) |
a8d3bf7f BJ |
65 | #define IN_CLASSA_NET 0xff000000 |
66 | #define IN_CLASSA_NSHIFT 24 | |
67 | #define IN_CLASSA_HOST 0x00ffffff | |
3adde5ac | 68 | #define IN_CLASSA_MAX 128 |
a8d3bf7f | 69 | |
8011f5df | 70 | #define IN_CLASSB(i) (((long)(i) & 0xc0000000) == 0x80000000) |
a8d3bf7f BJ |
71 | #define IN_CLASSB_NET 0xffff0000 |
72 | #define IN_CLASSB_NSHIFT 16 | |
73 | #define IN_CLASSB_HOST 0x0000ffff | |
3adde5ac | 74 | #define IN_CLASSB_MAX 65536 |
ae34128e | 75 | |
b4f9e9c7 | 76 | #define IN_CLASSC(i) (((long)(i) & 0xe0000000) == 0xc0000000) |
a8d3bf7f BJ |
77 | #define IN_CLASSC_NET 0xffffff00 |
78 | #define IN_CLASSC_NSHIFT 8 | |
79 | #define IN_CLASSC_HOST 0x000000ff | |
ae34128e | 80 | |
b4f9e9c7 MK |
81 | #define IN_CLASSD(i) (((long)(i) & 0xf0000000) == 0xe0000000) |
82 | #define IN_MULTICAST(i) IN_CLASSD(i) | |
83 | ||
84 | #define IN_EXPERIMENTAL(i) (((long)(i) & 0xe0000000) == 0xe0000000) | |
85 | #define IN_BADCLASS(i) (((long)(i) & 0xf0000000) == 0xf0000000) | |
86 | ||
8011f5df MK |
87 | #define INADDR_ANY (u_long)0x00000000 |
88 | #define INADDR_BROADCAST (u_long)0xffffffff /* must be masked */ | |
b410e761 MK |
89 | #ifndef KERNEL |
90 | #define INADDR_NONE 0xffffffff /* -1 return */ | |
91 | #endif | |
3adde5ac | 92 | |
b4f9e9c7 MK |
93 | #define IN_LOOPBACKNET 127 /* official! */ |
94 | ||
2b4b57cd BJ |
95 | /* |
96 | * Socket address, internet style. | |
97 | */ | |
98 | struct sockaddr_in { | |
99 | short sin_family; | |
100 | u_short sin_port; | |
101 | struct in_addr sin_addr; | |
102 | char sin_zero[8]; | |
103 | }; | |
eb2e4af9 | 104 | |
55f549b4 MK |
105 | /* |
106 | * Options for use with [gs]etsockopt at the IP level. | |
107 | */ | |
108 | #define IP_OPTIONS 1 /* set/get IP per-packet options */ | |
109 | ||
59965020 BJ |
110 | #ifdef KERNEL |
111 | extern struct domain inetdomain; | |
112 | extern struct protosw inetsw[]; | |
e4dfb782 | 113 | struct in_addr in_makeaddr(); |
8011f5df | 114 | u_long in_netof(), in_lnaof(); |
59965020 | 115 | #endif |