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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
26: /*
27: * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
28: * The Regents of the University of California. All rights reserved.
29: *
30: * Redistribution and use in source and binary forms, with or without
31: * modification, are permitted provided that the following conditions
32: * are met:
33: * 1. Redistributions of source code must retain the above copyright
34: * notice, this list of conditions and the following disclaimer.
35: * 2. Redistributions in binary form must reproduce the above copyright
36: * notice, this list of conditions and the following disclaimer in the
37: * documentation and/or other materials provided with the distribution.
38: * 3. All advertising materials mentioning features or use of this software
39: * must display the following acknowledgement:
40: * This product includes software developed by the University of
41: * California, Berkeley and its contributors.
42: * 4. Neither the name of the University nor the names of its contributors
43: * may be used to endorse or promote products derived from this software
44: * without specific prior written permission.
45: *
46: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56: * SUCH DAMAGE.
57: *
58: * @(#)socket.h 8.6 (Berkeley) 5/3/95
59: */
60:
61: #ifndef _SYS_SOCKET_H_
62: #define _SYS_SOCKET_H_
63:
64: /*
65: * Definitions related to sockets: types, address families, options.
66: */
67:
68: /*
69: * Types
70: */
71: #define SOCK_STREAM 1 /* stream socket */
72: #define SOCK_DGRAM 2 /* datagram socket */
73: #define SOCK_RAW 3 /* raw-protocol interface */
74: #define SOCK_RDM 4 /* reliably-delivered message */
75: #define SOCK_SEQPACKET 5 /* sequenced packet stream */
76:
77: /*
78: * Option flags per-socket.
79: */
80: #define SO_DEBUG 0x0001 /* turn on debugging info recording */
81: #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
82: #define SO_REUSEADDR 0x0004 /* allow local address reuse */
83: #define SO_KEEPALIVE 0x0008 /* keep connections alive */
84: #define SO_DONTROUTE 0x0010 /* just use interface addresses */
85: #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
86: #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
87: #define SO_LINGER 0x0080 /* linger on close if data present */
88: #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
89: #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
90:
91: #define SO_RCVIF 0x8000 /* enable receive if control msgs */
92:
93: /*
94: * Additional options, not kept in so_options.
95: */
96: #define SO_SNDBUF 0x1001 /* send buffer size */
97: #define SO_RCVBUF 0x1002 /* receive buffer size */
98: #define SO_SNDLOWAT 0x1003 /* send low-water mark */
99: #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
100: #define SO_SNDTIMEO 0x1005 /* send timeout */
101: #define SO_RCVTIMEO 0x1006 /* receive timeout */
102: #define SO_ERROR 0x1007 /* get error status and clear */
103: #define SO_TYPE 0x1008 /* get socket type */
104:
105: /*
106: * Structure used for manipulating linger option.
107: */
108: struct linger {
109: int l_onoff; /* option on/off */
110: int l_linger; /* linger time */
111: };
112:
113: /*
114: * Level number for (get/set)sockopt() to apply to socket itself.
115: */
116: #define SOL_SOCKET 0xffff /* options for socket level */
117:
118: /*
119: * Address families.
120: */
121: #define AF_UNSPEC 0 /* unspecified */
122: #define AF_LOCAL 1 /* local to host (pipes, portals) */
123: #define AF_UNIX AF_LOCAL /* backward compatibility */
124: #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
125: #define AF_IMPLINK 3 /* arpanet imp addresses */
126: #define AF_PUP 4 /* pup protocols: e.g. BSP */
127: #define AF_CHAOS 5 /* mit CHAOS protocols */
128: #define AF_NS 6 /* XEROX NS protocols */
129: #define AF_ISO 7 /* ISO protocols */
130: #define AF_OSI AF_ISO
131: #define AF_ECMA 8 /* european computer manufacturers */
132: #define AF_DATAKIT 9 /* datakit protocols */
133: #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
134: #define AF_SNA 11 /* IBM SNA */
135: #define AF_DECnet 12 /* DECnet */
136: #define AF_DLI 13 /* DEC Direct data link interface */
137: #define AF_LAT 14 /* LAT */
138: #define AF_HYLINK 15 /* NSC Hyperchannel */
139: #define AF_APPLETALK 16 /* Apple Talk */
140: #define AF_ROUTE 17 /* Internal Routing Protocol */
141: #define AF_LINK 18 /* Link layer interface */
142: #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
143: #define AF_COIP 20 /* connection-oriented IP, aka ST II */
144: #define AF_CNT 21 /* Computer Network Technology */
145: #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */
146: #define AF_IPX 23 /* Novell Internet Protocol */
147: #define AF_SIP 24 /* Simple Internet Protocol */
148: #define pseudo_AF_PIP 25 /* Help Identify PIP packets */
149: #if defined(ppc)
150: #define pseudo_AF_BLUE 26 /* Identify packets for Blue Box */
151: #define AF_NDRV 27 /* Network Driver 'raw' access */
152:
153: #define AF_MAX 28
154: #else
155: #define AF_MAX 26
156: #endif /* ppc */
157:
158: /*
159: * Structure used by kernel to store most
160: * addresses.
161: */
162: struct sockaddr {
163: u_char sa_len; /* total length */
164: u_char sa_family; /* address family */
165: char sa_data[14]; /* actually longer; address value */
166: };
167:
168: /*
169: * Structure used by kernel to pass protocol
170: * information in raw sockets.
171: */
172: struct sockproto {
173: u_short sp_family; /* address family */
174: u_short sp_protocol; /* protocol */
175: };
176:
177: /*
178: * Protocol families, same as address families for now.
179: */
180: #define PF_UNSPEC AF_UNSPEC
181: #define PF_LOCAL AF_LOCAL
182: #define PF_UNIX PF_LOCAL /* backward compatibility */
183: #define PF_INET AF_INET
184: #define PF_IMPLINK AF_IMPLINK
185: #define PF_PUP AF_PUP
186: #define PF_CHAOS AF_CHAOS
187: #define PF_NS AF_NS
188: #define PF_ISO AF_ISO
189: #define PF_OSI AF_ISO
190: #define PF_ECMA AF_ECMA
191: #define PF_DATAKIT AF_DATAKIT
192: #define PF_CCITT AF_CCITT
193: #define PF_SNA AF_SNA
194: #define PF_DECnet AF_DECnet
195: #define PF_DLI AF_DLI
196: #define PF_LAT AF_LAT
197: #define PF_HYLINK AF_HYLINK
198: #define PF_APPLETALK AF_APPLETALK
199: #define PF_ROUTE AF_ROUTE
200: #define PF_LINK AF_LINK
201: #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
202: #define PF_COIP AF_COIP
203: #define PF_CNT AF_CNT
204: #define PF_SIP AF_SIP
205: #define PF_IPX AF_IPX /* same format as AF_NS */
206: #define PF_RTIP pseudo_AF_FTIP /* same format as AF_INET */
207: #define PF_PIP pseudo_AF_PIP
208:
209: #define PF_MAX AF_MAX
210:
211: /*
212: * Definitions for network related sysctl, CTL_NET.
213: *
214: * Second level is protocol family.
215: * Third level is protocol number.
216: *
217: * Further levels are defined by the individual families below.
218: */
219: #define NET_MAXID AF_MAX
220:
221: #define CTL_NET_NAMES { \
222: { 0, 0 }, \
223: { "local", CTLTYPE_NODE }, \
224: { "inet", CTLTYPE_NODE }, \
225: { "implink", CTLTYPE_NODE }, \
226: { "pup", CTLTYPE_NODE }, \
227: { "chaos", CTLTYPE_NODE }, \
228: { "xerox_ns", CTLTYPE_NODE }, \
229: { "iso", CTLTYPE_NODE }, \
230: { "emca", CTLTYPE_NODE }, \
231: { "datakit", CTLTYPE_NODE }, \
232: { "ccitt", CTLTYPE_NODE }, \
233: { "ibm_sna", CTLTYPE_NODE }, \
234: { "decnet", CTLTYPE_NODE }, \
235: { "dec_dli", CTLTYPE_NODE }, \
236: { "lat", CTLTYPE_NODE }, \
237: { "hylink", CTLTYPE_NODE }, \
238: { "appletalk", CTLTYPE_NODE }, \
239: { "route", CTLTYPE_NODE }, \
240: { "link_layer", CTLTYPE_NODE }, \
241: { "xtp", CTLTYPE_NODE }, \
242: { "coip", CTLTYPE_NODE }, \
243: { "cnt", CTLTYPE_NODE }, \
244: { "rtip", CTLTYPE_NODE }, \
245: { "ipx", CTLTYPE_NODE }, \
246: { "sip", CTLTYPE_NODE }, \
247: { "pip", CTLTYPE_NODE }, \
248: }
249:
250: /*
251: * PF_ROUTE - Routing table
252: *
253: * Three additional levels are defined:
254: * Fourth: address family, 0 is wildcard
255: * Fifth: type of info, defined below
256: * Sixth: flag(s) to mask with for NET_RT_FLAGS
257: */
258: #define NET_RT_DUMP 1 /* dump; may limit to a.f. */
259: #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
260: #define NET_RT_IFLIST 3 /* survey interface list */
261: #define NET_RT_MAXID 4
262:
263: #define CTL_NET_RT_NAMES { \
264: { 0, 0 }, \
265: { "dump", CTLTYPE_STRUCT }, \
266: { "flags", CTLTYPE_STRUCT }, \
267: { "iflist", CTLTYPE_STRUCT }, \
268: }
269:
270: /*
271: * Maximum queue length specifiable by listen.
272: */
273: #define SOMAXCONN 128
274:
275: /*
276: * Message header for recvmsg and sendmsg calls.
277: * Used value-result for recvmsg, value only for sendmsg.
278: */
279: struct msghdr {
280: caddr_t msg_name; /* optional address */
281: u_int msg_namelen; /* size of address */
282: struct iovec *msg_iov; /* scatter/gather array */
283: u_int msg_iovlen; /* # elements in msg_iov */
284: caddr_t msg_control; /* ancillary data, see below */
285: u_int msg_controllen; /* ancillary data buffer len */
286: int msg_flags; /* flags on received message */
287: };
288:
289: #define MSG_OOB 0x1 /* process out-of-band data */
290: #define MSG_PEEK 0x2 /* peek at incoming message */
291: #define MSG_DONTROUTE 0x4 /* send without using routing tables */
292: #define MSG_EOR 0x8 /* data completes record */
293: #define MSG_TRUNC 0x10 /* data discarded before delivery */
294: #define MSG_CTRUNC 0x20 /* control data lost before delivery */
295: #define MSG_WAITALL 0x40 /* wait for full request or error */
296: #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
297:
298: /*
299: * Header for ancillary data objects in msg_control buffer.
300: * Used for additional information with/about a datagram
301: * not expressible by flags. The format is a sequence
302: * of message elements headed by cmsghdr structures.
303: */
304: struct cmsghdr {
305: u_int cmsg_len; /* data byte count, including hdr */
306: int cmsg_level; /* originating protocol */
307: int cmsg_type; /* protocol-specific type */
308: /* followed by u_char cmsg_data[]; */
309: };
310:
311: /* given pointer to struct cmsghdr, return pointer to data */
312: #define CMSG_DATA(cmsg) ((u_char *)((cmsg) + 1))
313:
314: /* given pointer to struct cmsghdr, return pointer to next cmsghdr */
315: #define CMSG_NXTHDR(mhdr, cmsg) \
316: (((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \
317: (mhdr)->msg_control + (mhdr)->msg_controllen) ? \
318: (struct cmsghdr *)NULL : \
319: (struct cmsghdr *)((caddr_t)(cmsg) + ALIGN((cmsg)->cmsg_len)))
320:
321: #define CMSG_FIRSTHDR(mhdr) ((struct cmsghdr *)(mhdr)->msg_control)
322:
323: /* "Socket"-level control message types: */
324: #define SCM_RIGHTS 0x01 /* access rights (array of int) */
325:
326: /*
327: * 4.3 compat sockaddr, move to compat file later
328: */
329: struct osockaddr {
330: u_short sa_family; /* address family */
331: char sa_data[14]; /* up to 14 bytes of direct address */
332: };
333:
334: /*
335: * 4.3-compat message header (move to compat file later).
336: */
337: struct omsghdr {
338: caddr_t msg_name; /* optional address */
339: int msg_namelen; /* size of address */
340: struct iovec *msg_iov; /* scatter/gather array */
341: int msg_iovlen; /* # elements in msg_iov */
342: caddr_t msg_accrights; /* access rights sent/received */
343: int msg_accrightslen;
344: };
345:
346: #ifndef _KERNEL
347:
348: #include <sys/cdefs.h>
349:
350: __BEGIN_DECLS
351: int accept __P((int, struct sockaddr *, int *));
352: int bind __P((int, const struct sockaddr *, int));
353: int connect __P((int, const struct sockaddr *, int));
354: int getpeername __P((int, struct sockaddr *, int *));
355: int getsockname __P((int, struct sockaddr *, int *));
356: int getsockopt __P((int, int, int, void *, int *));
357: int listen __P((int, int));
358: ssize_t recv __P((int, void *, size_t, int));
359: ssize_t recvfrom __P((int, void *, size_t, int, struct sockaddr *, int *));
360: ssize_t recvmsg __P((int, struct msghdr *, int));
361: ssize_t send __P((int, const void *, size_t, int));
362: ssize_t sendto __P((int, const void *,
363: size_t, int, const struct sockaddr *, int));
364: ssize_t sendmsg __P((int, const struct msghdr *, int));
365: int setsockopt __P((int, int, int, const void *, int));
366: int shutdown __P((int, int));
367: int socket __P((int, int, int));
368: int socketpair __P((int, int, int, int *));
369: __END_DECLS
370:
371: #endif /* !_KERNEL */
372: #endif /* !_SYS_SOCKET_H_ */
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