Annotation of src/sys/sys/socket.h, Revision 1.89
1.89 ! dyoung 1: /* $NetBSD: socket.h,v 1.88 2007/08/30 02:17:39 dyoung Exp $ */
1.44 itojun 2:
3: /*
4: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5: * All rights reserved.
1.71 perry 6: *
1.44 itojun 7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. Neither the name of the project nor the names of its contributors
16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
1.71 perry 18: *
1.44 itojun 19: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
1.10 cgd 31:
1.1 cgd 32: /*
1.8 mycroft 33: * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
34: * The Regents of the University of California. All rights reserved.
1.1 cgd 35: *
36: * Redistribution and use in source and binary forms, with or without
37: * modification, are permitted provided that the following conditions
38: * are met:
39: * 1. Redistributions of source code must retain the above copyright
40: * notice, this list of conditions and the following disclaimer.
41: * 2. Redistributions in binary form must reproduce the above copyright
42: * notice, this list of conditions and the following disclaimer in the
43: * documentation and/or other materials provided with the distribution.
1.68 agc 44: * 3. Neither the name of the University nor the names of its contributors
1.1 cgd 45: * may be used to endorse or promote products derived from this software
46: * without specific prior written permission.
47: *
48: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58: * SUCH DAMAGE.
59: *
1.28 fvdl 60: * @(#)socket.h 8.6 (Berkeley) 5/3/95
1.1 cgd 61: */
62:
1.2 mycroft 63: #ifndef _SYS_SOCKET_H_
1.8 mycroft 64: #define _SYS_SOCKET_H_
1.2 mycroft 65:
1.67 bjh21 66: #include <sys/featuretest.h>
67:
1.1 cgd 68: /*
69: * Definitions related to sockets: types, address families, options.
70: */
71:
72: /*
1.42 kleink 73: * Data types.
74: */
1.55 itojun 75: #include <sys/ansi.h>
1.56 kleink 76:
77: #ifndef sa_family_t
78: typedef __sa_family_t sa_family_t;
1.58 kleink 79: #define sa_family_t __sa_family_t
1.56 kleink 80: #endif
81:
1.55 itojun 82: #ifndef socklen_t
83: typedef __socklen_t socklen_t;
1.58 kleink 84: #define socklen_t __socklen_t
1.55 itojun 85: #endif
1.42 kleink 86:
1.63 kleink 87: #include <machine/ansi.h>
88:
89: #ifdef _BSD_SIZE_T_
90: typedef _BSD_SIZE_T_ size_t;
91: #undef _BSD_SIZE_T_
92: #endif
93:
94: #ifdef _BSD_SSIZE_T_
95: typedef _BSD_SSIZE_T_ ssize_t;
96: #undef _BSD_SSIZE_T_
97: #endif
98:
99: #include <sys/uio.h>
100:
1.42 kleink 101: /*
102: * Socket types.
1.1 cgd 103: */
104: #define SOCK_STREAM 1 /* stream socket */
105: #define SOCK_DGRAM 2 /* datagram socket */
106: #define SOCK_RAW 3 /* raw-protocol interface */
107: #define SOCK_RDM 4 /* reliably-delivered message */
108: #define SOCK_SEQPACKET 5 /* sequenced packet stream */
109:
110: /*
111: * Option flags per-socket.
112: */
113: #define SO_DEBUG 0x0001 /* turn on debugging info recording */
114: #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
115: #define SO_REUSEADDR 0x0004 /* allow local address reuse */
116: #define SO_KEEPALIVE 0x0008 /* keep connections alive */
117: #define SO_DONTROUTE 0x0010 /* just use interface addresses */
118: #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
119: #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
120: #define SO_LINGER 0x0080 /* linger on close if data present */
121: #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
1.8 mycroft 122: #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
1.18 thorpej 123: #define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */
1.1 cgd 124:
1.79 christos 125:
1.1 cgd 126: /*
127: * Additional options, not kept in so_options.
128: */
129: #define SO_SNDBUF 0x1001 /* send buffer size */
130: #define SO_RCVBUF 0x1002 /* receive buffer size */
131: #define SO_SNDLOWAT 0x1003 /* send low-water mark */
132: #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
133: #define SO_SNDTIMEO 0x1005 /* send timeout */
134: #define SO_RCVTIMEO 0x1006 /* receive timeout */
135: #define SO_ERROR 0x1007 /* get error status and clear */
136: #define SO_TYPE 0x1008 /* get socket type */
1.69 darrenr 137: #define SO_OVERFLOWED 0x1009 /* datagrams: return packets dropped */
1.1 cgd 138:
1.89 ! dyoung 139: #define SO_NOHEADER 0x100a /* user supplies no header to kernel;
! 140: * kernel removes header and supplies
! 141: * payload
! 142: */
1.1 cgd 143: /*
144: * Structure used for manipulating linger option.
145: */
146: struct linger {
147: int l_onoff; /* option on/off */
1.28 fvdl 148: int l_linger; /* linger time in seconds */
1.1 cgd 149: };
150:
151: /*
152: * Level number for (get/set)sockopt() to apply to socket itself.
153: */
154: #define SOL_SOCKET 0xffff /* options for socket level */
155:
156: /*
157: * Address families.
158: */
159: #define AF_UNSPEC 0 /* unspecified */
1.8 mycroft 160: #define AF_LOCAL 1 /* local to host (pipes, portals) */
161: #define AF_UNIX AF_LOCAL /* backward compatibility */
1.1 cgd 162: #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
163: #define AF_IMPLINK 3 /* arpanet imp addresses */
164: #define AF_PUP 4 /* pup protocols: e.g. BSP */
165: #define AF_CHAOS 5 /* mit CHAOS protocols */
166: #define AF_NS 6 /* XEROX NS protocols */
167: #define AF_ISO 7 /* ISO protocols */
168: #define AF_OSI AF_ISO
169: #define AF_ECMA 8 /* european computer manufacturers */
170: #define AF_DATAKIT 9 /* datakit protocols */
171: #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
172: #define AF_SNA 11 /* IBM SNA */
173: #define AF_DECnet 12 /* DECnet */
174: #define AF_DLI 13 /* DEC Direct data link interface */
175: #define AF_LAT 14 /* LAT */
176: #define AF_HYLINK 15 /* NSC Hyperchannel */
177: #define AF_APPLETALK 16 /* Apple Talk */
178: #define AF_ROUTE 17 /* Internal Routing Protocol */
179: #define AF_LINK 18 /* Link layer interface */
1.67 bjh21 180: #if defined(_NETBSD_SOURCE)
1.1 cgd 181: #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
1.42 kleink 182: #endif
1.8 mycroft 183: #define AF_COIP 20 /* connection-oriented IP, aka ST II */
184: #define AF_CNT 21 /* Computer Network Technology */
1.67 bjh21 185: #if defined(_NETBSD_SOURCE)
1.8 mycroft 186: #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */
1.42 kleink 187: #endif
1.8 mycroft 188: #define AF_IPX 23 /* Novell Internet Protocol */
1.21 sommerfe 189: #define AF_INET6 24 /* IP version 6 */
1.67 bjh21 190: #if defined(_NETBSD_SOURCE)
1.8 mycroft 191: #define pseudo_AF_PIP 25 /* Help Identify PIP packets */
1.42 kleink 192: #endif
1.17 chuck 193: #define AF_ISDN 26 /* Integrated Services Digital Network*/
194: #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */
195: #define AF_NATM 27 /* native ATM access */
1.19 is 196: #define AF_ARP 28 /* (rev.) addr. res. prot. (RFC 826) */
1.67 bjh21 197: #if defined(_NETBSD_SOURCE)
1.21 sommerfe 198: #define pseudo_AF_KEY 29 /* Internal key management protocol */
1.31 thorpej 199: #define pseudo_AF_HDRCMPLT 30 /* Used by BPF to not rewrite hdrs
200: in interface output routine */
1.42 kleink 201: #endif
1.83 plunky 202: #define AF_BLUETOOTH 31 /* Bluetooth: HCI, SCO, L2CAP, RFCOMM */
1.1 cgd 203:
1.80 gdamore 204: #define AF_MAX 32
1.1 cgd 205:
206: /*
1.26 thorpej 207: * Structure used by kernel to store most
208: * addresses.
1.1 cgd 209: */
210: struct sockaddr {
1.63 kleink 211: __uint8_t sa_len; /* total length */
1.56 kleink 212: sa_family_t sa_family; /* address family */
213: char sa_data[14]; /* actually longer; address value */
1.26 thorpej 214: };
1.1 cgd 215:
1.42 kleink 216: #if defined(_KERNEL)
1.1 cgd 217: /*
218: * Structure used by kernel to pass protocol
219: * information in raw sockets.
220: */
221: struct sockproto {
222: u_short sp_family; /* address family */
223: u_short sp_protocol; /* protocol */
224: };
1.42 kleink 225: #endif /* _KERNEL */
1.1 cgd 226:
1.44 itojun 227: #if 1
228: /*
229: * RFC 2553: protocol-independent placeholder for socket addresses
230: */
231: #define _SS_MAXSIZE 128
1.63 kleink 232: #define _SS_ALIGNSIZE (sizeof(__int64_t))
1.60 kleink 233: #define _SS_PAD1SIZE (_SS_ALIGNSIZE - 2)
234: #define _SS_PAD2SIZE (_SS_MAXSIZE - 2 - \
1.44 itojun 235: _SS_PAD1SIZE - _SS_ALIGNSIZE)
236:
1.67 bjh21 237: #if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
1.44 itojun 238: struct sockaddr_storage {
1.63 kleink 239: __uint8_t ss_len; /* address length */
1.56 kleink 240: sa_family_t ss_family; /* address family */
241: char __ss_pad1[_SS_PAD1SIZE];
1.63 kleink 242: __int64_t __ss_align;/* force desired structure storage alignment */
1.56 kleink 243: char __ss_pad2[_SS_PAD2SIZE];
1.44 itojun 244: };
1.89 ! dyoung 245: #define sstosa(__ss) ((struct sockaddr *)(__ss))
! 246: #define sstocsa(__ss) ((const struct sockaddr *)(__ss))
1.67 bjh21 247: #endif /* _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
1.46 kleink 248: #endif /* 1 */
1.44 itojun 249:
1.1 cgd 250: /*
251: * Protocol families, same as address families for now.
252: */
253: #define PF_UNSPEC AF_UNSPEC
1.8 mycroft 254: #define PF_LOCAL AF_LOCAL
255: #define PF_UNIX PF_LOCAL /* backward compatibility */
1.1 cgd 256: #define PF_INET AF_INET
257: #define PF_IMPLINK AF_IMPLINK
258: #define PF_PUP AF_PUP
259: #define PF_CHAOS AF_CHAOS
260: #define PF_NS AF_NS
261: #define PF_ISO AF_ISO
262: #define PF_OSI AF_ISO
263: #define PF_ECMA AF_ECMA
264: #define PF_DATAKIT AF_DATAKIT
265: #define PF_CCITT AF_CCITT
266: #define PF_SNA AF_SNA
267: #define PF_DECnet AF_DECnet
268: #define PF_DLI AF_DLI
269: #define PF_LAT AF_LAT
270: #define PF_HYLINK AF_HYLINK
271: #define PF_APPLETALK AF_APPLETALK
272: #define PF_ROUTE AF_ROUTE
273: #define PF_LINK AF_LINK
1.67 bjh21 274: #if defined(_NETBSD_SOURCE)
1.1 cgd 275: #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
1.42 kleink 276: #endif
1.8 mycroft 277: #define PF_COIP AF_COIP
278: #define PF_CNT AF_CNT
1.21 sommerfe 279: #define PF_INET6 AF_INET6
1.8 mycroft 280: #define PF_IPX AF_IPX /* same format as AF_NS */
1.67 bjh21 281: #if defined(_NETBSD_SOURCE)
1.72 kleink 282: #define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */
1.8 mycroft 283: #define PF_PIP pseudo_AF_PIP
1.42 kleink 284: #endif
1.20 is 285: #define PF_ISDN AF_ISDN /* same as E164 */
286: #define PF_E164 AF_E164
1.17 chuck 287: #define PF_NATM AF_NATM
1.19 is 288: #define PF_ARP AF_ARP
1.67 bjh21 289: #if defined(_NETBSD_SOURCE)
1.21 sommerfe 290: #define PF_KEY pseudo_AF_KEY /* like PF_ROUTE, only for key mgmt */
1.42 kleink 291: #endif
1.80 gdamore 292: #define PF_BLUETOOTH AF_BLUETOOTH
1.1 cgd 293:
294: #define PF_MAX AF_MAX
295:
1.67 bjh21 296: #if defined(_NETBSD_SOURCE)
1.63 kleink 297:
298: #ifndef gid_t
299: typedef __gid_t gid_t; /* group id */
300: #define gid_t __gid_t
301: #endif
302:
303: #ifndef uid_t
304: typedef __uid_t uid_t; /* user id */
305: #define uid_t __uid_t
306: #endif
307:
1.1 cgd 308: /*
1.27 thorpej 309: * Socket credentials.
310: */
311: struct sockcred {
312: uid_t sc_uid; /* real user id */
313: uid_t sc_euid; /* effective user id */
314: gid_t sc_gid; /* real group id */
315: gid_t sc_egid; /* effective group id */
316: int sc_ngroups; /* number of supplemental groups */
317: gid_t sc_groups[1]; /* variable length */
318: };
319:
320: /*
321: * Compute size of a sockcred structure with groups.
322: */
323: #define SOCKCREDSIZE(ngrps) \
324: (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
1.67 bjh21 325: #endif /* _NETBSD_SOURCE */
1.27 thorpej 326:
1.38 kleink 327:
1.67 bjh21 328: #if defined(_NETBSD_SOURCE)
1.27 thorpej 329: /*
1.8 mycroft 330: * Definitions for network related sysctl, CTL_NET.
331: *
332: * Second level is protocol family.
333: * Third level is protocol number.
334: *
335: * Further levels are defined by the individual families below.
336: */
337: #define NET_MAXID AF_MAX
338:
339: #define CTL_NET_NAMES { \
340: { 0, 0 }, \
1.28 fvdl 341: { "local", CTLTYPE_NODE }, \
1.8 mycroft 342: { "inet", CTLTYPE_NODE }, \
343: { "implink", CTLTYPE_NODE }, \
344: { "pup", CTLTYPE_NODE }, \
345: { "chaos", CTLTYPE_NODE }, \
346: { "xerox_ns", CTLTYPE_NODE }, \
347: { "iso", CTLTYPE_NODE }, \
348: { "emca", CTLTYPE_NODE }, \
349: { "datakit", CTLTYPE_NODE }, \
350: { "ccitt", CTLTYPE_NODE }, \
351: { "ibm_sna", CTLTYPE_NODE }, \
352: { "decnet", CTLTYPE_NODE }, \
353: { "dec_dli", CTLTYPE_NODE }, \
354: { "lat", CTLTYPE_NODE }, \
355: { "hylink", CTLTYPE_NODE }, \
356: { "appletalk", CTLTYPE_NODE }, \
357: { "route", CTLTYPE_NODE }, \
358: { "link_layer", CTLTYPE_NODE }, \
359: { "xtp", CTLTYPE_NODE }, \
360: { "coip", CTLTYPE_NODE }, \
361: { "cnt", CTLTYPE_NODE }, \
362: { "rtip", CTLTYPE_NODE }, \
363: { "ipx", CTLTYPE_NODE }, \
1.21 sommerfe 364: { "inet6", CTLTYPE_NODE }, \
1.8 mycroft 365: { "pip", CTLTYPE_NODE }, \
1.20 is 366: { "isdn", CTLTYPE_NODE }, \
1.17 chuck 367: { "natm", CTLTYPE_NODE }, \
1.20 is 368: { "arp", CTLTYPE_NODE }, \
1.21 sommerfe 369: { "key", CTLTYPE_NODE }, \
1.8 mycroft 370: }
1.73 atatat 371:
372: struct kinfo_pcb {
1.75 tron 373: __uint64_t ki_pcbaddr; /* PTR: pcb addr */
374: __uint64_t ki_ppcbaddr; /* PTR: ppcb addr */
375: __uint64_t ki_sockaddr; /* PTR: socket addr */
376:
377: __uint32_t ki_family; /* INT: protocol family */
378: __uint32_t ki_type; /* INT: socket type */
379: __uint32_t ki_protocol; /* INT: protocol */
380: __uint32_t ki_pflags; /* INT: generic protocol flags */
381:
382: __uint32_t ki_sostate; /* INT: socket state */
383: __uint32_t ki_prstate; /* INT: protocol state */
384: __int32_t ki_tstate; /* INT: tcp state */
385: __uint32_t ki_tflags; /* INT: tcp flags */
1.73 atatat 386:
1.75 tron 387: __uint64_t ki_rcvq; /* U_LONG: receive queue len */
388: __uint64_t ki_sndq; /* U_LONG: send queue len */
1.73 atatat 389:
390: union {
391: struct sockaddr _kis_src; /* STRUCT: local address */
392: char _kis_pad[256 + 8]; /* pad to max addr length */
393: } ki_s;
394: union {
395: struct sockaddr _kid_dst; /* STRUCT: remote address */
396: char _kid_pad[256 + 8]; /* pad to max addr length */
397: } ki_d;
398:
1.75 tron 399: __uint64_t ki_inode; /* INO_T: fake inode number */
400: __uint64_t ki_vnode; /* PTR: if associated with file */
401: __uint64_t ki_conn; /* PTR: control block of peer */
402: __uint64_t ki_refs; /* PTR: referencing socket */
403: __uint64_t ki_nextref; /* PTR: link in refs list */
1.73 atatat 404: };
405:
406: #define ki_src ki_s._kis_src
407: #define ki_dst ki_d._kid_dst
408:
409: #define PCB_SLOP 20
410: #define PCB_ALL 0
411:
1.67 bjh21 412: #endif /* _NETBSD_SOURCE */
1.8 mycroft 413:
1.67 bjh21 414: #if defined(_NETBSD_SOURCE)
1.8 mycroft 415: /*
416: * PF_ROUTE - Routing table
417: *
418: * Three additional levels are defined:
419: * Fourth: address family, 0 is wildcard
420: * Fifth: type of info, defined below
421: * Sixth: flag(s) to mask with for NET_RT_FLAGS
422: */
423: #define NET_RT_DUMP 1 /* dump; may limit to a.f. */
424: #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
1.47 bouyer 425: #define NET_RT_OIFLIST 3 /* old NET_RT_IFLIST (pre 1.5) */
426: #define NET_RT_IFLIST 4 /* survey interface list */
427: #define NET_RT_MAXID 5
1.8 mycroft 428:
429: #define CTL_NET_RT_NAMES { \
430: { 0, 0 }, \
431: { "dump", CTLTYPE_STRUCT }, \
432: { "flags", CTLTYPE_STRUCT }, \
1.47 bouyer 433: { 0, 0 }, \
1.8 mycroft 434: { "iflist", CTLTYPE_STRUCT }, \
435: }
1.67 bjh21 436: #endif /* _NETBSD_SOURCE */
1.8 mycroft 437:
438: /*
1.13 mycroft 439: * Maximum queue length specifiable by listen(2).
1.1 cgd 440: */
1.66 christos 441: #ifndef SOMAXCONN
1.13 mycroft 442: #define SOMAXCONN 128
1.66 christos 443: #endif
1.16 neil 444:
1.1 cgd 445: /*
446: * Message header for recvmsg and sendmsg calls.
447: * Used value-result for recvmsg, value only for sendmsg.
448: */
449: struct msghdr {
1.42 kleink 450: void *msg_name; /* optional address */
451: socklen_t msg_namelen; /* size of address */
452: struct iovec *msg_iov; /* scatter/gather array */
453: int msg_iovlen; /* # elements in msg_iov */
454: void *msg_control; /* ancillary data, see below */
455: socklen_t msg_controllen; /* ancillary data buffer len */
456: int msg_flags; /* flags on received message */
1.1 cgd 457: };
458:
1.79 christos 459: #define MSG_OOB 0x0001 /* process out-of-band data */
460: #define MSG_PEEK 0x0002 /* peek at incoming message */
461: #define MSG_DONTROUTE 0x0004 /* send without using routing tables */
462: #define MSG_EOR 0x0008 /* data completes record */
463: #define MSG_TRUNC 0x0010 /* data discarded before delivery */
464: #define MSG_CTRUNC 0x0020 /* control data lost before delivery */
465: #define MSG_WAITALL 0x0040 /* wait for full request or error */
466: #define MSG_DONTWAIT 0x0080 /* this message should be nonblocking */
467: #define MSG_BCAST 0x0100 /* this message was rcvd using link-level brdcst */
468: #define MSG_MCAST 0x0200 /* this message was rcvd using link-level mcast */
469: #define MSG_NOSIGNAL 0x0400 /* do not generate SIGPIPE on EOF */
1.1 cgd 470:
1.86 dsl 471: /* Extra flags used internally only */
472: #define MSG_USERFLAGS 0x0ffffff
473: #define MSG_NAMEMBUF 0x1000000 /* msg_name is an mbuf */
474: #define MSG_CONTROLMBUF 0x2000000 /* msg_control is an mbuf */
475: #define MSG_IOVUSRSPACE 0x4000000 /* msg_iov is in user space */
1.87 dsl 476: #define MSG_LENUSRSPACE 0x8000000 /* address length is in user space */
1.86 dsl 477:
1.1 cgd 478: /*
479: * Header for ancillary data objects in msg_control buffer.
480: * Used for additional information with/about a datagram
481: * not expressible by flags. The format is a sequence
482: * of message elements headed by cmsghdr structures.
483: */
484: struct cmsghdr {
1.42 kleink 485: socklen_t cmsg_len; /* data byte count, including hdr */
486: int cmsg_level; /* originating protocol */
487: int cmsg_type; /* protocol-specific type */
1.1 cgd 488: /* followed by u_char cmsg_data[]; */
489: };
490:
1.8 mycroft 491: /* given pointer to struct cmsghdr, return pointer to data */
1.50 itojun 492: #define CMSG_DATA(cmsg) \
1.57 christos 493: ((u_char *)(void *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
1.77 christos 494: #define CCMSG_DATA(cmsg) \
495: ((const u_char *)(const void *)(cmsg) + \
496: __CMSG_ALIGN(sizeof(struct cmsghdr)))
1.1 cgd 497:
1.44 itojun 498: /*
499: * Alignment requirement for CMSG struct manipulation.
1.51 itojun 500: * This basically behaves the same as ALIGN() ARCH/include/param.h.
501: * We declare it separately for two reasons:
502: * (1) avoid dependency between machine/param.h, and (2) to sync with kernel's
503: * idea of ALIGNBYTES at runtime.
504: * without (2), we can't guarantee binary compatibility in case of future
505: * changes in ALIGNBYTES.
1.44 itojun 506: */
1.53 itojun 507: #define __CMSG_ALIGN(n) (((n) + __cmsg_alignbytes()) & ~__cmsg_alignbytes())
508: #ifdef _KERNEL
1.54 augustss 509: #define CMSG_ALIGN(n) __CMSG_ALIGN(n)
1.53 itojun 510: #endif
1.44 itojun 511:
1.8 mycroft 512: /* given pointer to struct cmsghdr, return pointer to next cmsghdr */
1.1 cgd 513: #define CMSG_NXTHDR(mhdr, cmsg) \
1.84 christos 514: (((char *)(cmsg) + __CMSG_ALIGN((cmsg)->cmsg_len) + \
1.53 itojun 515: __CMSG_ALIGN(sizeof(struct cmsghdr)) > \
1.84 christos 516: (((char *)(mhdr)->msg_control) + (mhdr)->msg_controllen)) ? \
1.78 kleink 517: (struct cmsghdr *)0 : \
1.84 christos 518: (struct cmsghdr *)((char *)(cmsg) + \
1.63 kleink 519: __CMSG_ALIGN((cmsg)->cmsg_len)))
1.1 cgd 520:
1.62 itojun 521: /*
522: * RFC 2292 requires to check msg_controllen, in case that the kernel returns
523: * an empty list for some reasons.
524: */
525: #define CMSG_FIRSTHDR(mhdr) \
526: ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
527: (struct cmsghdr *)(mhdr)->msg_control : \
1.78 kleink 528: (struct cmsghdr *)0)
1.1 cgd 529:
1.53 itojun 530: #define CMSG_SPACE(l) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(l))
531: #define CMSG_LEN(l) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + (l))
1.44 itojun 532:
1.1 cgd 533: /* "Socket"-level control message types: */
534: #define SCM_RIGHTS 0x01 /* access rights (array of int) */
1.67 bjh21 535: #if defined(_NETBSD_SOURCE)
1.18 thorpej 536: #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */
1.42 kleink 537: #define SCM_CREDS 0x04 /* credentials (struct sockcred) */
538: #endif
1.29 kleink 539:
540: /*
541: * Types of socket shutdown(2).
542: */
543: #define SHUT_RD 0 /* Disallow further receives. */
544: #define SHUT_WR 1 /* Disallow further sends. */
545: #define SHUT_RDWR 2 /* Disallow further sends/receives. */
1.1 cgd 546:
1.59 toshii 547: #include <sys/cdefs.h>
548:
549: __BEGIN_DECLS
1.70 perry 550: int __cmsg_alignbytes(void);
1.59 toshii 551: __END_DECLS
1.1 cgd 552:
1.85 dyoung 553: #ifdef _KERNEL
1.89 ! dyoung 554: static inline socklen_t
! 555: sockaddr_getlen(const struct sockaddr *sa)
! 556: {
! 557: return sa->sa_len;
! 558: }
! 559:
1.85 dyoung 560: __BEGIN_DECLS
1.88 dyoung 561: struct sockaddr *sockaddr_copy(struct sockaddr *, socklen_t,
562: const struct sockaddr *);
563: struct sockaddr *sockaddr_alloc(sa_family_t, socklen_t, int);
1.89 ! dyoung 564: const void *sockaddr_const_addr(const struct sockaddr *, socklen_t *);
! 565: void *sockaddr_addr(struct sockaddr *, socklen_t *);
! 566: const struct sockaddr *sockaddr_any(const struct sockaddr *);
! 567: const void *sockaddr_anyaddr(const struct sockaddr *, socklen_t *);
1.85 dyoung 568: int sockaddr_cmp(const struct sockaddr *, const struct sockaddr *);
569: struct sockaddr *sockaddr_dup(const struct sockaddr *, int);
570: void sockaddr_free(struct sockaddr *);
571: __END_DECLS
572: #endif /* _KERNEL */
573:
1.12 briggs 574: #ifndef _KERNEL
1.1 cgd 575:
576: __BEGIN_DECLS
1.70 perry 577: int accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
578: int bind(int, const struct sockaddr *, socklen_t);
579: int connect(int, const struct sockaddr *, socklen_t);
580: int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
581: int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
1.84 christos 582: int getsockopt(int, int, int, void *__restrict, socklen_t * __restrict);
1.70 perry 583: int listen(int, int);
584: ssize_t recv(int, void *, size_t, int);
1.84 christos 585: ssize_t recvfrom(int, void *__restrict, size_t, int,
1.70 perry 586: struct sockaddr * __restrict, socklen_t * __restrict);
587: ssize_t recvmsg(int, struct msghdr *, int);
588: ssize_t send(int, const void *, size_t, int);
589: ssize_t sendto(int, const void *,
590: size_t, int, const struct sockaddr *, socklen_t);
591: ssize_t sendmsg(int, const struct msghdr *, int);
592: int setsockopt(int, int, int, const void *, socklen_t);
593: int shutdown(int, int);
594: int sockatmark(int);
1.81 mrg 595: int socket(int, int, int)
1.82 mrg 596: #if !defined(__LIBC12_SOURCE__) && !defined(_STANDALONE)
1.81 mrg 597: __RENAME(__socket30)
598: #endif
599: ;
1.70 perry 600: int socketpair(int, int, int, int *);
1.1 cgd 601: __END_DECLS
1.14 christos 602: #endif /* !_KERNEL */
1.1 cgd 603:
1.2 mycroft 604: #endif /* !_SYS_SOCKET_H_ */
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