clean up some stuff; fix problem with lost mbufs
[unix-history] / usr / src / sys / netinet / in.h
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CommitLineData
1/* in.h 4.19 82/12/17 */
2
3/*
4 * Constants and structures defined by the internet system,
5 * Per RFC 790, September 1981.
6 */
7
8/*
9 * Protocols
10 */
11#define IPPROTO_ICMP 1 /* control message protocol */
12#define IPPROTO_GGP 2 /* gateway^2 (deprecated) */
13#define IPPROTO_TCP 6 /* tcp */
14#define IPPROTO_PUP 12 /* pup */
15#define IPPROTO_UDP 17 /* user datagram protocol */
16
17#define IPPROTO_RAW 255 /* raw IP packet */
18#define IPPROTO_MAX 256
19
20/*
21 * Port/socket numbers: network standard functions
22 */
23#define IPPORT_ECHO 7
24#define IPPORT_DISCARD 9
25#define IPPORT_SYSTAT 11
26#define IPPORT_DAYTIME 13
27#define IPPORT_NETSTAT 15
28#define IPPORT_FTP 21
29#define IPPORT_TELNET 23
30#define IPPORT_SMTP 25
31#define IPPORT_TIMESERVER 37
32#define IPPORT_NAMESERVER 42
33#define IPPORT_WHOIS 43
34#define IPPORT_MTP 57
35
36/*
37 * Port/socket numbers: host specific functions
38 */
39#define IPPORT_TFTP 69
40#define IPPORT_RJE 77
41#define IPPORT_FINGER 79
42#define IPPORT_TTYLINK 87
43#define IPPORT_SUPDUP 95
44
45/*
46 * UNIX TCP sockets
47 */
48#define IPPORT_EXECSERVER 512
49#define IPPORT_LOGINSERVER 513
50#define IPPORT_CMDSERVER 514
51#define IPPORT_EFSSERVER 520
52
53/*
54 * UNIX UDP sockets
55 */
56#define IPPORT_BIFFUDP 512
57#define IPPORT_WHOSERVER 513
58#define IPPORT_ROUTESERVER 520 /* 520+1 also used */
59
60/*
61 * Ports < IPPORT_RESERVED are reserved for
62 * privileged processes (e.g. root).
63 */
64#define IPPORT_RESERVED 1024
65
66/*
67 * Link numbers
68 */
69#define IMPLINK_IP 155
70#define IMPLINK_LOWEXPER 156
71#define IMPLINK_HIGHEXPER 158
72
73/*
74 * Internet address (old style... should be updated)
75 */
76struct in_addr {
77 union {
78 struct { u_char s_b1,s_b2,s_b3,s_b4; } S_un_b;
79 struct { u_short s_w1,s_w2; } S_un_w;
80 u_long S_addr;
81 } S_un;
82#define s_addr S_un.S_addr /* can be used for most tcp & ip code */
83#define s_host S_un.S_un_b.s_b2 /* host on imp */
84#define s_net S_un.S_un_b.s_b1 /* network */
85#define s_imp S_un.S_un_w.s_w2 /* imp */
86#define s_impno S_un.S_un_b.s_b4 /* imp # */
87#define s_lh S_un.S_un_b.s_b3 /* logical host */
88};
89
90/*
91 * Definitions of bits in internet address integers.
92 */
93#define IN_CLASSA(i) ((((long)(i))&0x80000000)==0)
94#define IN_CLASSA_NET 0xff000000
95#define IN_CLASSA_NSHIFT 24
96#define IN_CLASSA_HOST 0x00ffffff
97
98#define IN_CLASSB(i) ((((long)(i))&0xc0000000)==0x80000000)
99#define IN_CLASSB_NET 0xffff0000
100#define IN_CLASSB_NSHIFT 16
101#define IN_CLASSB_HOST 0x0000ffff
102
103#define IN_CLASSC(i) ((((long)(i))&0xc0000000)==0xc0000000)
104#define IN_CLASSC_NET 0xffffff00
105#define IN_CLASSC_NSHIFT 8
106#define IN_CLASSC_HOST 0x000000ff
107
108#define INADDR_ANY 0x00000000
109
110/*
111 * Socket address, internet style.
112 */
113struct sockaddr_in {
114 short sin_family;
115 u_short sin_port;
116 struct in_addr sin_addr;
117 char sin_zero[8];
118};
119
120#if !defined(vax)
121/*
122 * Macros for number representation conversion.
123 */
124#define ntohl(x) (x)
125#define ntohs(x) (x)
126#define htonl(x) (x)
127#define htons(x) (x)
128#endif
129
130#ifdef KERNEL
131extern struct domain inetdomain;
132extern struct protosw inetsw[];
133#endif