source: rtems/c/src/exec/libnetworking/sys/socket.h @ 39e6e65a

4.104.114.84.95
Last change on this file since 39e6e65a was 39e6e65a, checked in by Joel Sherrill <joel.sherrill@…>, on Aug 19, 1998 at 9:32:28 PM

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1/*
2 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
3 *      The Regents of the University of California.  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 *
33 *      @(#)socket.h    8.4 (Berkeley) 2/21/94
34 * $Id$
35 */
36
37#ifndef _SYS_SOCKET_H_
38#define _SYS_SOCKET_H_
39
40/*
41 * Definitions related to sockets: types, address families, options.
42 */
43
44/*
45 * Types
46 */
47#define SOCK_STREAM     1               /* stream socket */
48#define SOCK_DGRAM      2               /* datagram socket */
49#define SOCK_RAW        3               /* raw-protocol interface */
50#define SOCK_RDM        4               /* reliably-delivered message */
51#define SOCK_SEQPACKET  5               /* sequenced packet stream */
52
53/*
54 * Option flags per-socket.
55 */
56#define SO_DEBUG        0x0001          /* turn on debugging info recording */
57#define SO_ACCEPTCONN   0x0002          /* socket has had listen() */
58#define SO_REUSEADDR    0x0004          /* allow local address reuse */
59#define SO_KEEPALIVE    0x0008          /* keep connections alive */
60#define SO_DONTROUTE    0x0010          /* just use interface addresses */
61#define SO_BROADCAST    0x0020          /* permit sending of broadcast msgs */
62#define SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
63#define SO_LINGER       0x0080          /* linger on close if data present */
64#define SO_OOBINLINE    0x0100          /* leave received OOB data in line */
65#define SO_REUSEPORT    0x0200          /* allow local address & port reuse */
66#define SO_TIMESTAMP    0x0400          /* timestamp received dgram traffic */
67
68/*
69 * Additional options, not kept in so_options.
70 */
71#define SO_SNDBUF       0x1001          /* send buffer size */
72#define SO_RCVBUF       0x1002          /* receive buffer size */
73#define SO_SNDLOWAT     0x1003          /* send low-water mark */
74#define SO_RCVLOWAT     0x1004          /* receive low-water mark */
75#define SO_SNDTIMEO     0x1005          /* send timeout */
76#define SO_RCVTIMEO     0x1006          /* receive timeout */
77#define SO_ERROR        0x1007          /* get error status and clear */
78#define SO_TYPE         0x1008          /* get socket type */
79#define SO_PRIVSTATE    0x1009          /* get/deny privileged state */
80
81/*
82 * Structure used for manipulating linger option.
83 */
84struct  linger {
85        int     l_onoff;                /* option on/off */
86        int     l_linger;               /* linger time */
87};
88
89/*
90 * Level number for (get/set)sockopt() to apply to socket itself.
91 */
92#define SOL_SOCKET      0xffff          /* options for socket level */
93
94/*
95 * Address families.
96 */
97#define AF_UNSPEC       0               /* unspecified */
98#define AF_LOCAL        1               /* local to host (pipes, portals) */
99#define AF_UNIX         AF_LOCAL        /* backward compatibility */
100#define AF_INET         2               /* internetwork: UDP, TCP, etc. */
101#define AF_IMPLINK      3               /* arpanet imp addresses */
102#define AF_PUP          4               /* pup protocols: e.g. BSP */
103#define AF_CHAOS        5               /* mit CHAOS protocols */
104#define AF_NS           6               /* XEROX NS protocols */
105#define AF_ISO          7               /* ISO protocols */
106#define AF_OSI          AF_ISO
107#define AF_ECMA         8               /* European computer manufacturers */
108#define AF_DATAKIT      9               /* datakit protocols */
109#define AF_CCITT        10              /* CCITT protocols, X.25 etc */
110#define AF_SNA          11              /* IBM SNA */
111#define AF_DECnet       12              /* DECnet */
112#define AF_DLI          13              /* DEC Direct data link interface */
113#define AF_LAT          14              /* LAT */
114#define AF_HYLINK       15              /* NSC Hyperchannel */
115#define AF_APPLETALK    16              /* Apple Talk */
116#define AF_ROUTE        17              /* Internal Routing Protocol */
117#define AF_LINK         18              /* Link layer interface */
118#define pseudo_AF_XTP   19              /* eXpress Transfer Protocol (no AF) */
119#define AF_COIP         20              /* connection-oriented IP, aka ST II */
120#define AF_CNT          21              /* Computer Network Technology */
121#define pseudo_AF_RTIP  22              /* Help Identify RTIP packets */
122#define AF_IPX          23              /* Novell Internet Protocol */
123#define AF_SIP          24              /* Simple Internet Protocol */
124#define pseudo_AF_PIP   25              /* Help Identify PIP packets */
125#define AF_ISDN         26              /* Integrated Services Digital Network*/
126#define AF_E164         AF_ISDN         /* CCITT E.164 recommendation */
127#define pseudo_AF_KEY   27              /* Internal key-management function */
128#define AF_INET6        28              /* IPv6 */
129
130#define AF_MAX          29
131
132/*
133 * Structure used by kernel to store most
134 * addresses.
135 */
136struct sockaddr {
137        u_char  sa_len;                 /* total length */
138        u_char  sa_family;              /* address family */
139        char    sa_data[14];            /* actually longer; address value */
140};
141
142/*
143 * Structure used by kernel to pass protocol
144 * information in raw sockets.
145 */
146struct sockproto {
147        u_short sp_family;              /* address family */
148        u_short sp_protocol;            /* protocol */
149};
150
151/*
152 * Protocol families, same as address families for now.
153 */
154#define PF_UNSPEC       AF_UNSPEC
155#define PF_LOCAL        AF_LOCAL
156#define PF_UNIX         PF_LOCAL        /* backward compatibility */
157#define PF_INET         AF_INET
158#define PF_IMPLINK      AF_IMPLINK
159#define PF_PUP          AF_PUP
160#define PF_CHAOS        AF_CHAOS
161#define PF_NS           AF_NS
162#define PF_ISO          AF_ISO
163#define PF_OSI          AF_ISO
164#define PF_ECMA         AF_ECMA
165#define PF_DATAKIT      AF_DATAKIT
166#define PF_CCITT        AF_CCITT
167#define PF_SNA          AF_SNA
168#define PF_DECnet       AF_DECnet
169#define PF_DLI          AF_DLI
170#define PF_LAT          AF_LAT
171#define PF_HYLINK       AF_HYLINK
172#define PF_APPLETALK    AF_APPLETALK
173#define PF_ROUTE        AF_ROUTE
174#define PF_LINK         AF_LINK
175#define PF_XTP          pseudo_AF_XTP   /* really just proto family, no AF */
176#define PF_COIP         AF_COIP
177#define PF_CNT          AF_CNT
178#define PF_SIP          AF_SIP
179#define PF_IPX          AF_IPX          /* same format as AF_NS */
180#define PF_RTIP         pseudo_AF_RTIP  /* same format as AF_INET */
181#define PF_PIP          pseudo_AF_PIP
182#define PF_ISDN         AF_ISDN
183#define PF_KEY          pseudo_AF_KEY
184#define PF_INET6        AF_INET6
185
186#define PF_MAX          AF_MAX
187
188/*
189 * Definitions for network related sysctl, CTL_NET.
190 *
191 * Second level is protocol family.
192 * Third level is protocol number.
193 *
194 * Further levels are defined by the individual families below.
195 */
196#define NET_MAXID       AF_MAX
197
198#define CTL_NET_NAMES { \
199        { 0, 0 }, \
200        { "unix", CTLTYPE_NODE }, \
201        { "inet", CTLTYPE_NODE }, \
202        { "implink", CTLTYPE_NODE }, \
203        { "pup", CTLTYPE_NODE }, \
204        { "chaos", CTLTYPE_NODE }, \
205        { "xerox_ns", CTLTYPE_NODE }, \
206        { "iso", CTLTYPE_NODE }, \
207        { "emca", CTLTYPE_NODE }, \
208        { "datakit", CTLTYPE_NODE }, \
209        { "ccitt", CTLTYPE_NODE }, \
210        { "ibm_sna", CTLTYPE_NODE }, \
211        { "decnet", CTLTYPE_NODE }, \
212        { "dec_dli", CTLTYPE_NODE }, \
213        { "lat", CTLTYPE_NODE }, \
214        { "hylink", CTLTYPE_NODE }, \
215        { "appletalk", CTLTYPE_NODE }, \
216        { "route", CTLTYPE_NODE }, \
217        { "link_layer", CTLTYPE_NODE }, \
218        { "xtp", CTLTYPE_NODE }, \
219        { "coip", CTLTYPE_NODE }, \
220        { "cnt", CTLTYPE_NODE }, \
221        { "rtip", CTLTYPE_NODE }, \
222        { "ipx", CTLTYPE_NODE }, \
223        { "sip", CTLTYPE_NODE }, \
224        { "pip", CTLTYPE_NODE }, \
225        { "isdn", CTLTYPE_NODE }, \
226        { "key", CTLTYPE_NODE }, \
227}
228
229/*
230 * PF_ROUTE - Routing table
231 *
232 * Three additional levels are defined:
233 *      Fourth: address family, 0 is wildcard
234 *      Fifth: type of info, defined below
235 *      Sixth: flag(s) to mask with for NET_RT_FLAGS
236 */
237#define NET_RT_DUMP     1               /* dump; may limit to a.f. */
238#define NET_RT_FLAGS    2               /* by flags, e.g. RESOLVING */
239#define NET_RT_IFLIST   3               /* survey interface list */
240#define NET_RT_MAXID    4
241
242#define CTL_NET_RT_NAMES { \
243        { 0, 0 }, \
244        { "dump", CTLTYPE_STRUCT }, \
245        { "flags", CTLTYPE_STRUCT }, \
246        { "iflist", CTLTYPE_STRUCT }, \
247}
248
249/*
250 * Maximum queue length specifiable by listen.
251 */
252#define SOMAXCONN       128
253
254/*
255 * Message header for recvmsg and sendmsg calls.
256 * Used value-result for recvmsg, value only for sendmsg.
257 */
258struct msghdr {
259        caddr_t msg_name;               /* optional address */
260        u_int   msg_namelen;            /* size of address */
261        struct  iovec *msg_iov;         /* scatter/gather array */
262        u_int   msg_iovlen;             /* # elements in msg_iov */
263        caddr_t msg_control;            /* ancillary data, see below */
264        u_int   msg_controllen;         /* ancillary data buffer len */
265        int     msg_flags;              /* flags on received message */
266};
267
268#define MSG_OOB         0x1             /* process out-of-band data */
269#define MSG_PEEK        0x2             /* peek at incoming message */
270#define MSG_DONTROUTE   0x4             /* send without using routing tables */
271#define MSG_EOR         0x8             /* data completes record */
272#define MSG_TRUNC       0x10            /* data discarded before delivery */
273#define MSG_CTRUNC      0x20            /* control data lost before delivery */
274#define MSG_WAITALL     0x40            /* wait for full request or error */
275#define MSG_DONTWAIT    0x80            /* this message should be nonblocking */
276#define MSG_EOF         0x100           /* data completes connection */
277#define MSG_COMPAT      0x8000          /* used in sendit() */
278
279/*
280 * Header for ancillary data objects in msg_control buffer.
281 * Used for additional information with/about a datagram
282 * not expressible by flags.  The format is a sequence
283 * of message elements headed by cmsghdr structures.
284 */
285struct cmsghdr {
286        u_int   cmsg_len;               /* data byte count, including hdr */
287        int     cmsg_level;             /* originating protocol */
288        int     cmsg_type;              /* protocol-specific type */
289/* followed by  u_char  cmsg_data[]; */
290};
291
292/* given pointer to struct cmsghdr, return pointer to data */
293#define CMSG_DATA(cmsg)         ((u_char *)((cmsg) + 1))
294
295/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
296#define CMSG_NXTHDR(mhdr, cmsg) \
297        (((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \
298            (mhdr)->msg_control + (mhdr)->msg_controllen) ? \
299            (struct cmsghdr *)NULL : \
300            (struct cmsghdr *)((caddr_t)(cmsg) + ALIGN((cmsg)->cmsg_len)))
301
302#define CMSG_FIRSTHDR(mhdr)     ((struct cmsghdr *)(mhdr)->msg_control)
303
304/* "Socket"-level control message types: */
305#define SCM_RIGHTS      0x01            /* access rights (array of int) */
306#define SCM_TIMESTAMP   0x02            /* timestamp (struct timeval) */
307
308/*
309 * 4.3 compat sockaddr, move to compat file later
310 */
311struct osockaddr {
312        u_short sa_family;              /* address family */
313        char    sa_data[14];            /* up to 14 bytes of direct address */
314};
315
316/*
317 * 4.3-compat message header (move to compat file later).
318 */
319struct omsghdr {
320        caddr_t msg_name;               /* optional address */
321        int     msg_namelen;            /* size of address */
322        struct  iovec *msg_iov;         /* scatter/gather array */
323        int     msg_iovlen;             /* # elements in msg_iov */
324        caddr_t msg_accrights;          /* access rights sent/received */
325        int     msg_accrightslen;
326};
327
328#ifndef KERNEL
329
330#include <sys/cdefs.h>
331
332__BEGIN_DECLS
333int     accept __P((int, struct sockaddr *, int *));
334int     bind __P((int, const struct sockaddr *, int));
335int     connect __P((int, const struct sockaddr *, int));
336int     getpeername __P((int, struct sockaddr *, int *));
337int     getsockname __P((int, struct sockaddr *, int *));
338int     getsockopt __P((int, int, int, void *, int *));
339int     listen __P((int, int));
340ssize_t recv __P((int, void *, size_t, int));
341ssize_t recvfrom __P((int, void *, size_t, int, struct sockaddr *, int *));
342ssize_t recvmsg __P((int, struct msghdr *, int));
343ssize_t send __P((int, const void *, size_t, int));
344ssize_t sendto __P((int, const void *,
345            size_t, int, const struct sockaddr *, int));
346ssize_t sendmsg __P((int, const struct msghdr *, int));
347int     setsockopt __P((int, int, int, const void *, int));
348int     shutdown __P((int, int));
349int     socket __P((int, int, int));
350int     socketpair __P((int, int, int, int *));
351__END_DECLS
352
353#else /* KERNEL */
354void    pfctlinput __P((int, struct sockaddr *));
355#endif /* !KERNEL */
356#endif /* !_SYS_SOCKET_H_ */
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