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OS-4018 lxbrand support TCP SO_REUSEPORT
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Cody Mello <cody.mello@joyent.com>
OS-3752 Increase IOV_MAX to at least 1024
OS-2952 lx brand needs to support or emulate rtnetlink(7)
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
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--- old/usr/src/uts/common/sys/socket.h
+++ new/usr/src/uts/common/sys/socket.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
23 23 *
24 24 * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
25 + * Copyright 2015, Joyent, Inc. All rights reserved.
25 26 */
26 27
27 28 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
28 29 /* All Rights Reserved */
29 30
30 31 /*
31 32 * University Copyright- Copyright (c) 1982, 1986, 1988
32 33 * The Regents of the University of California
33 34 * All Rights Reserved
34 35 *
35 36 * University Acknowledgment- Portions of this document are derived from
36 37 * software developed by the University of California, Berkeley, and its
37 38 * contributors.
38 39 */
39 40
40 41 /* Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved. */
41 42
43 +/*
44 + * Copyright (c) 2014, Joyent, Inc. All rights reserved.
45 + */
42 46 #ifndef _SYS_SOCKET_H
43 47 #define _SYS_SOCKET_H
44 48
45 49 #include <sys/types.h>
46 50 #include <sys/uio.h>
47 51 #include <sys/feature_tests.h>
48 52 #include <sys/socket_impl.h>
49 53 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
50 54 #ifndef _KERNEL
51 55 #include <sys/netconfig.h>
52 56 #endif /* !_KERNEL */
53 57 #include <netinet/in.h>
54 58 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
55 59
56 60 #ifdef __cplusplus
57 61 extern "C" {
58 62 #endif
59 63
60 64 #ifndef _SOCKLEN_T
61 65 #define _SOCKLEN_T
62 66
63 67 /*
64 68 * The socklen definitions are reproduced in netinet/in.h for the inet6_
65 69 * functions. Exposing all of sys/socket.h via netinet/in.h breaks existing
66 70 * applications and is not required by austin.
67 71 */
68 72 #if defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64)
69 73 typedef size_t socklen_t;
70 74 #else
71 75 typedef uint32_t socklen_t;
72 76 #endif /* defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64) */
73 77
74 78 #if defined(_XPG4_2) || defined(_BOOT)
75 79 typedef socklen_t *_RESTRICT_KYWD Psocklen_t;
76 80 #else
77 81 typedef void *_RESTRICT_KYWD Psocklen_t;
78 82 #endif /* defined(_XPG4_2) || defined(_BOOT) */
79 83
80 84 #endif /* _SOCKLEN_T */
81 85
82 86 /*
83 87 * Definitions related to sockets: types, address families, options.
84 88 */
85 89 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
86 90 #ifndef NC_TPI_CLTS
87 91 #define NC_TPI_CLTS 1 /* must agree with netconfig.h */
88 92 #define NC_TPI_COTS 2 /* must agree with netconfig.h */
89 93 #define NC_TPI_COTS_ORD 3 /* must agree with netconfig.h */
90 94 #define NC_TPI_RAW 4 /* must agree with netconfig.h */
91 95 #endif /* !NC_TPI_CLTS */
92 96 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
93 97
94 98 /*
95 99 * Types
96 100 */
97 101 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
98 102 #define SOCK_STREAM NC_TPI_COTS /* stream socket */
99 103 #define SOCK_DGRAM NC_TPI_CLTS /* datagram socket */
100 104 #define SOCK_RAW NC_TPI_RAW /* raw-protocol interface */
101 105 #else
102 106 #define SOCK_STREAM 2 /* stream socket */
103 107 #define SOCK_DGRAM 1 /* datagram socket */
104 108 #define SOCK_RAW 4 /* raw-protocol interface */
105 109 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
106 110 #define SOCK_RDM 5 /* reliably-delivered message */
107 111 #define SOCK_SEQPACKET 6 /* sequenced packet stream */
108 112 #define SOCK_TYPE_MASK 0xffff /* type reside in these bits only */
109 113
110 114 /*
111 115 * Flags for socket() and accept4()
112 116 */
113 117 #define SOCK_CLOEXEC 0x080000 /* like open(2) O_CLOEXEC for socket */
114 118 #define SOCK_NONBLOCK 0x100000 /* like O_NONBLOCK */
115 119 #define SOCK_NDELAY 0x200000 /* like O_NDELAY */
116 120
117 121 /*
118 122 * Option flags per-socket.
119 123 */
120 124 #define SO_DEBUG 0x0001 /* turn on debugging info recording */
121 125 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
122 126 #define SO_REUSEADDR 0x0004 /* allow local address reuse */
123 127 #define SO_KEEPALIVE 0x0008 /* keep connections alive */
124 128 #define SO_DONTROUTE 0x0010 /* just use interface addresses */
125 129 #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
126 130 #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
127 131 #define SO_LINGER 0x0080 /* linger on close if data present */
128 132 #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
129 133 #define SO_DGRAM_ERRIND 0x0200 /* Application wants delayed error */
130 134 #define SO_RECVUCRED 0x0400 /* Application wants ucred of sender */
131 135
132 136 /*
133 137 * Socket options are passed using a signed integer, but it is also rare
134 138 * for more than one to ever be passed at the same time with setsockopt
135 139 * and only one at a time can be retrieved with getsockopt.
136 140 *
137 141 * Since the lower numbers cannot be renumbered for compatibility reasons,
138 142 * it would seem that we need to start a new number space (0x40000000 -
139 143 * 0x7fffffff) for those that don't need to be stored as a bit flag
140 144 * somewhere. This limits the flag options to 30 but that seems to be
141 145 * plenty, anyway. 0x40000000 is reserved for future use.
142 146 */
143 147 #define SO_ATTACH_FILTER 0x40000001
144 148 #define SO_DETACH_FILTER 0x40000002
145 149
146 150 #ifdef _KERNEL
147 151 #define SO_SND_COPYAVOID 0x0800 /* Internal: use zero-copy */
148 152 #define SO_SND_BUFINFO 0x1000 /* Internal: get buffer info */
149 153 /* when doing zero-copy */
150 154
151 155 struct so_snd_bufinfo {
152 156 ushort_t sbi_wroff; /* Write offset */
153 157 ssize_t sbi_maxblk; /* Max size of a single mblk */
154 158 ssize_t sbi_maxpsz; /* Max total size of a mblk chain */
155 159 ushort_t sbi_tail; /* Extra space available at the end */
156 160 };
157 161 #endif /* _KERNEL */
158 162
159 163 /*
160 164 * N.B.: The following definition is present only for compatibility
161 165 * with release 3.0. It will disappear in later releases.
162 166 */
163 167 #define SO_DONTLINGER (~SO_LINGER) /* ~SO_LINGER */
164 168
165 169 /*
166 170 * Additional options, not kept in so_options.
167 171 */
168 172 #define SO_SNDBUF 0x1001 /* send buffer size */
169 173 #define SO_RCVBUF 0x1002 /* receive buffer size */
170 174 #define SO_SNDLOWAT 0x1003 /* send low-water mark */
171 175 #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
172 176 #define SO_SNDTIMEO 0x1005 /* send timeout */
173 177 #define SO_RCVTIMEO 0x1006 /* receive timeout */
174 178 #define SO_ERROR 0x1007 /* get error status and clear */
175 179 #define SO_TYPE 0x1008 /* get socket type */
176 180 #define SO_PROTOTYPE 0x1009 /* get/set protocol type */
177 181 #define SO_ANON_MLP 0x100a /* create MLP on anonymous bind */
178 182 #define SO_MAC_EXEMPT 0x100b /* allow dominated unlabeled peers */
179 183 #define SO_DOMAIN 0x100c /* get socket domain */
180 184 #define SO_RCVPSH 0x100d /* receive interval to push data */
181 185
182 186 /* "Socket"-level control message types: */
183 187 #define SCM_RIGHTS 0x1010 /* access rights (array of int) */
184 188 #define SO_SECATTR 0x1011 /* socket's security attributes */
185 189 #define SCM_UCRED 0x1012 /* sender's ucred */
186 190 #define SO_TIMESTAMP 0x1013 /* socket-level timestamp option */
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187 191 #define SCM_TIMESTAMP SO_TIMESTAMP /* socket control message timestamp */
188 192 #define SO_ALLZONES 0x1014 /* bind in all zones */
189 193 #define SO_EXCLBIND 0x1015 /* exclusive binding */
190 194 #define SO_MAC_IMPLICIT 0x1016 /* hide mac labels on wire */
191 195 #define SO_VRRP 0x1017 /* VRRP control socket */
192 196
193 197 #ifdef _KERNEL
194 198 #define SO_SRCADDR 0x2001 /* Internal: AF_UNIX source address */
195 199 #define SO_FILEP 0x2002 /* Internal: AF_UNIX file pointer */
196 200 #define SO_UNIX_CLOSE 0x2003 /* Internal: AF_UNIX peer closed */
201 +#define SO_REUSEPORT 0x2004 /* allow simultaneous port reuse */
197 202 #endif /* _KERNEL */
198 203
199 204 /*
200 205 * Socket filter options
201 206 */
202 207 #define FIL_ATTACH 0x1 /* attach filter */
203 208 #define FIL_DETACH 0x2 /* detach filter */
204 209 #define FIL_LIST 0x3 /* list attached filters */
205 210
206 211 #define FILNAME_MAX 32
207 212 /*
208 213 * Structure returned by FIL_LIST
209 214 */
210 215 struct fil_info {
211 216 int fi_flags; /* see below (FILF_*) */
212 217 int fi_pos; /* position (0 is bottom) */
213 218 char fi_name[FILNAME_MAX]; /* filter name */
214 219 };
215 220
216 221 #define FILF_PROG 0x1 /* programmatic attach */
217 222 #define FILF_AUTO 0x2 /* automatic attach */
218 223 #define FILF_BYPASS 0x4 /* filter is not active */
219 224
220 225 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
221 226 /*
222 227 * new socket open flags to identify socket and acceptor streams
223 228 */
224 229 #define SO_ACCEPTOR 0x20000 /* acceptor socket */
225 230 #define SO_SOCKSTR 0x40000 /* normal socket stream */
226 231 #define SO_FALLBACK 0x80000 /* fallback to TPI socket */
227 232
228 233 /*
229 234 * Flags for socket_create() and socket_newconn()
230 235 */
231 236 #define SOCKET_SLEEP KM_SLEEP
232 237 #define SOCKET_NOSLEEP KM_NOSLEEP
233 238
234 239 #endif /* _KERNEL */
235 240
236 241 /*
237 242 * Structure used for manipulating linger option.
238 243 */
239 244 struct linger {
240 245 int l_onoff; /* option on/off */
241 246 int l_linger; /* linger time */
242 247 };
243 248
244 249 /*
245 250 * Levels for (get/set)sockopt() that don't apply to a specific protocol.
246 251 */
247 252 #define SOL_SOCKET 0xffff /* options for socket level */
248 253 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
249 254 #define SOL_ROUTE 0xfffe /* options for routing socket level */
250 255 #endif
251 256 #define SOL_PACKET 0xfffd /* options for packet level */
252 257 #define SOL_FILTER 0xfffc /* options for socket filter level */
253 258
254 259 /*
255 260 * Address families.
256 261 *
257 262 * Some of these constant names are copied for the DTrace IP provider in
258 263 * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept
259 264 * in sync.
260 265 */
261 266 #define AF_UNSPEC 0 /* unspecified */
262 267 #define AF_UNIX 1 /* local to host (pipes, portals) */
263 268 #define AF_LOCAL AF_UNIX /* Synonym for AF_UNIX */
264 269 #define AF_FILE AF_UNIX /* Synonym for AF_UNIX */
265 270 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
266 271 #define AF_IMPLINK 3 /* arpanet imp addresses */
267 272 #define AF_PUP 4 /* pup protocols: e.g. BSP */
268 273 #define AF_CHAOS 5 /* mit CHAOS protocols */
269 274 #define AF_NS 6 /* XEROX NS protocols */
270 275 #define AF_NBS 7 /* nbs protocols */
271 276 #define AF_ECMA 8 /* european computer manufacturers */
272 277 #define AF_DATAKIT 9 /* datakit protocols */
273 278 #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
274 279 #define AF_SNA 11 /* IBM SNA */
275 280 #define AF_DECnet 12 /* DECnet */
276 281 #define AF_DLI 13 /* Direct data link interface */
277 282 #define AF_LAT 14 /* LAT */
278 283 #define AF_HYLINK 15 /* NSC Hyperchannel */
279 284 #define AF_APPLETALK 16 /* Apple Talk */
280 285 #define AF_NIT 17 /* Network Interface Tap */
281 286 #define AF_802 18 /* IEEE 802.2, also ISO 8802 */
282 287 #define AF_OSI 19 /* umbrella for all families used */
283 288 #define AF_X25 20 /* CCITT X.25 in particular */
284 289 #define AF_OSINET 21 /* AFI = 47, IDI = 4 */
285 290 #define AF_GOSIP 22 /* U.S. Government OSI */
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286 291 #define AF_IPX 23 /* Novell Internet Protocol */
287 292 #define AF_ROUTE 24 /* Internal Routing Protocol */
288 293 #define AF_LINK 25 /* Link-layer interface */
289 294 #define AF_INET6 26 /* Internet Protocol, Version 6 */
290 295 #define AF_KEY 27 /* Security Association DB socket */
291 296 #define AF_NCA 28 /* NCA socket */
292 297 #define AF_POLICY 29 /* Security Policy DB socket */
293 298 #define AF_INET_OFFLOAD 30 /* Sun private; do not use */
294 299 #define AF_TRILL 31 /* TRILL interface */
295 300 #define AF_PACKET 32 /* PF_PACKET Linux socket interface */
301 +#define AF_LX_NETLINK 33 /* Linux-compatible netlink */
296 302
297 -#define AF_MAX 32
303 +#define AF_MAX 33
298 304
299 305 /*
300 306 * Protocol families, same as address families for now.
301 307 */
302 308 #define PF_UNSPEC AF_UNSPEC
303 309 #define PF_UNIX AF_UNIX
304 310 #define PF_LOCAL PF_UNIX
305 311 #define PF_FILE PF_UNIX
306 312 #define PF_INET AF_INET
307 313 #define PF_IMPLINK AF_IMPLINK
308 314 #define PF_PUP AF_PUP
309 315 #define PF_CHAOS AF_CHAOS
310 316 #define PF_NS AF_NS
311 317 #define PF_NBS AF_NBS
312 318 #define PF_ECMA AF_ECMA
313 319 #define PF_DATAKIT AF_DATAKIT
314 320 #define PF_CCITT AF_CCITT
315 321 #define PF_SNA AF_SNA
316 322 #define PF_DECnet AF_DECnet
317 323 #define PF_DLI AF_DLI
318 324 #define PF_LAT AF_LAT
319 325 #define PF_HYLINK AF_HYLINK
320 326 #define PF_APPLETALK AF_APPLETALK
321 327 #define PF_NIT AF_NIT
322 328 #define PF_802 AF_802
323 329 #define PF_OSI AF_OSI
324 330 #define PF_X25 AF_X25
325 331 #define PF_OSINET AF_OSINET
326 332 #define PF_GOSIP AF_GOSIP
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327 333 #define PF_IPX AF_IPX
328 334 #define PF_ROUTE AF_ROUTE
329 335 #define PF_LINK AF_LINK
330 336 #define PF_INET6 AF_INET6
331 337 #define PF_KEY AF_KEY
332 338 #define PF_NCA AF_NCA
333 339 #define PF_POLICY AF_POLICY
334 340 #define PF_INET_OFFLOAD AF_INET_OFFLOAD /* Sun private; do not use */
335 341 #define PF_TRILL AF_TRILL
336 342 #define PF_PACKET AF_PACKET
343 +#define PF_LX_NETLINK AF_LX_NETLINK
337 344
338 345 #define PF_MAX AF_MAX
339 346
340 347 /*
341 348 * Maximum queue length specifiable by listen.
342 349 */
343 350 #define SOMAXCONN 128
344 351
345 352 /*
346 353 * Message header for recvmsg and sendmsg calls.
347 354 */
348 355 struct msghdr {
349 356 void *msg_name; /* optional address */
350 357 socklen_t msg_namelen; /* size of address */
351 358 struct iovec *msg_iov; /* scatter/gather array */
352 359 int msg_iovlen; /* # elements in msg_iov */
353 360
354 361 #if defined(_XPG4_2) || defined(_KERNEL)
355 362 void *msg_control; /* ancillary data */
356 363 socklen_t msg_controllen; /* ancillary data buffer len */
357 364 int msg_flags; /* flags on received message */
358 365 #else
359 366 caddr_t msg_accrights; /* access rights sent/received */
360 367 int msg_accrightslen;
361 368 #endif /* defined(_XPG4_2) || defined(_KERNEL) */
362 369 };
363 370
364 371 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
365 372
366 373 /*
367 374 * N.B.: we assume that omsghdr and nmsghdr are isomorphic, with
368 375 * the sole exception that nmsghdr has the additional msg_flags
369 376 * field at the end.
370 377 */
371 378 struct omsghdr {
372 379 void *msg_name; /* optional address */
373 380 socklen_t msg_namelen; /* size of address */
374 381 struct iovec *msg_iov; /* scatter/gather array */
375 382 int msg_iovlen; /* # elements in msg_iov */
376 383 caddr_t msg_accrights; /* access rights sent/received */
377 384 int msg_accrightslen;
378 385 };
379 386
380 387 #define nmsghdr msghdr
381 388
382 389 #if defined(_SYSCALL32)
383 390
384 391 struct omsghdr32 {
385 392 caddr32_t msg_name; /* optional address */
386 393 uint32_t msg_namelen; /* size of address */
387 394 caddr32_t msg_iov; /* scatter/gather array */
388 395 int32_t msg_iovlen; /* # elements in msg_iov */
389 396 caddr32_t msg_accrights; /* access rights sent/received */
390 397 uint32_t msg_accrightslen;
391 398 };
392 399
393 400 struct msghdr32 {
394 401 caddr32_t msg_name; /* optional address */
395 402 uint32_t msg_namelen; /* size of address */
396 403 caddr32_t msg_iov; /* scatter/gather array */
397 404 int32_t msg_iovlen; /* # elements in msg_iov */
398 405 caddr32_t msg_control; /* ancillary data */
399 406 uint32_t msg_controllen; /* ancillary data buffer len */
400 407 int32_t msg_flags; /* flags on received message */
401 408 };
402 409
403 410 #define nmsghdr32 msghdr32
404 411
405 412 #endif /* _SYSCALL32 */
406 413 #endif /* _KERNEL */
407 414
408 415 #define MSG_OOB 0x1 /* process out-of-band data */
409 416 #define MSG_PEEK 0x2 /* peek at incoming message */
410 417 #define MSG_DONTROUTE 0x4 /* send without using routing tables */
411 418 /* Added for XPGv2 compliance */
412 419 #define MSG_EOR 0x8 /* Terminates a record */
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413 420 #define MSG_CTRUNC 0x10 /* Control data truncated */
414 421 #define MSG_TRUNC 0x20 /* Normal data truncated */
415 422 #define MSG_WAITALL 0x40 /* Wait for complete recv or error */
416 423 #define MSG_DUPCTRL 0x800 /* Save control message for use with */
417 424 /* with left over data */
418 425 /* End of XPGv2 compliance */
419 426 #define MSG_DONTWAIT 0x80 /* Don't block for this recv */
420 427 #define MSG_NOTIFICATION 0x100 /* Notification, not data */
421 428 #define MSG_XPG4_2 0x8000 /* Private: XPG4.2 flag */
422 429
430 +/* Obsolete but kept for compilation compatability. Use IOV_MAX. */
423 431 #define MSG_MAXIOVLEN 16
424 432
425 433 #ifdef _KERNEL
426 434
427 435 /*
428 436 * for kernel socket only
429 437 */
430 438 #define MSG_MBLK_QUICKRELE 0x10000000 /* free mblk chain */
431 439 /* in timely manner */
432 440 #define MSG_USERSPACE 0x20000000 /* buffer from user space */
433 441
434 442 #endif /* _KERNEL */
435 443
436 444
437 445 /* Added for XPGv2 compliance */
438 446 #define SHUT_RD 0
439 447 #define SHUT_WR 1
440 448 #define SHUT_RDWR 2
441 449
442 450 struct cmsghdr {
443 451 socklen_t cmsg_len; /* data byte count, including hdr */
444 452 int cmsg_level; /* originating protocol */
445 453 int cmsg_type; /* protocol-specific type */
446 454 };
447 455
448 456 #if defined(_XPG4_2) || defined(_KERNEL)
449 457 #if defined(__sparc)
450 458 /* To maintain backward compatibility, alignment needs to be 8 on sparc. */
451 459 #define _CMSG_HDR_ALIGNMENT 8
452 460 #else
453 461 /* for __i386 (and other future architectures) */
454 462 #define _CMSG_HDR_ALIGNMENT 4
455 463 #endif /* defined(__sparc) */
456 464 #endif /* defined(_XPG4_2) || defined(_KERNEL) */
457 465
458 466 #if defined(_XPG4_2)
459 467 /*
460 468 * The cmsg headers (and macros dealing with them) were made available as
461 469 * part of UNIX95 and hence need to be protected with a _XPG4_2 define.
462 470 */
463 471 #define _CMSG_DATA_ALIGNMENT (sizeof (int))
464 472 #define _CMSG_HDR_ALIGN(x) (((uintptr_t)(x) + _CMSG_HDR_ALIGNMENT - 1) & \
465 473 ~(_CMSG_HDR_ALIGNMENT - 1))
466 474 #define _CMSG_DATA_ALIGN(x) (((uintptr_t)(x) + _CMSG_DATA_ALIGNMENT - 1) & \
467 475 ~(_CMSG_DATA_ALIGNMENT - 1))
468 476 #define CMSG_DATA(c) \
469 477 ((unsigned char *)_CMSG_DATA_ALIGN((struct cmsghdr *)(c) + 1))
470 478
471 479 #define CMSG_FIRSTHDR(m) \
472 480 (((m)->msg_controllen < sizeof (struct cmsghdr)) ? \
473 481 (struct cmsghdr *)0 : (struct cmsghdr *)((m)->msg_control))
474 482
475 483 #define CMSG_NXTHDR(m, c) \
476 484 (((c) == 0) ? CMSG_FIRSTHDR(m) : \
477 485 ((((uintptr_t)_CMSG_HDR_ALIGN((char *)(c) + \
478 486 ((struct cmsghdr *)(c))->cmsg_len) + sizeof (struct cmsghdr)) > \
479 487 (((uintptr_t)((struct msghdr *)(m))->msg_control) + \
480 488 ((uintptr_t)((struct msghdr *)(m))->msg_controllen))) ? \
481 489 ((struct cmsghdr *)0) : \
482 490 ((struct cmsghdr *)_CMSG_HDR_ALIGN((char *)(c) + \
483 491 ((struct cmsghdr *)(c))->cmsg_len))))
484 492
485 493 /* Amount of space + padding needed for a message of length l */
486 494 #define CMSG_SPACE(l) \
487 495 ((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l)))
488 496
489 497 /* Value to be used in cmsg_len, does not include trailing padding */
490 498 #define CMSG_LEN(l) \
491 499 ((unsigned int)_CMSG_DATA_ALIGN(sizeof (struct cmsghdr)) + (l))
492 500
493 501 #endif /* _XPG4_2 */
494 502
495 503 #ifdef _XPG4_2
496 504 #ifdef __PRAGMA_REDEFINE_EXTNAME
497 505 #pragma redefine_extname bind __xnet_bind
498 506 #pragma redefine_extname connect __xnet_connect
499 507 #pragma redefine_extname recvmsg __xnet_recvmsg
500 508 #pragma redefine_extname sendmsg __xnet_sendmsg
501 509 #pragma redefine_extname sendto __xnet_sendto
502 510 #pragma redefine_extname socket __xnet_socket
503 511 #pragma redefine_extname socketpair __xnet_socketpair
504 512 #pragma redefine_extname getsockopt __xnet_getsockopt
505 513 #else /* __PRAGMA_REDEFINE_EXTNAME */
506 514 #define bind __xnet_bind
507 515 #define connect __xnet_connect
508 516 #define recvmsg __xnet_recvmsg
509 517 #define sendmsg __xnet_sendmsg
510 518 #define sendto __xnet_sendto
511 519 #define socket __xnet_socket
512 520 #define socketpair __xnet_socketpair
513 521 #define getsockopt __xnet_getsockopt
514 522 #endif /* __PRAGMA_REDEFINE_EXTNAME */
515 523
516 524 #endif /* _XPG4_2 */
517 525
518 526 #if defined(_XPG4_2) && !defined(_XPG5)
519 527 #ifdef __PRAGMA_REDEFINE_EXTNAME
520 528 #pragma redefine_extname listen __xnet_listen
521 529 #else /* __PRAGMA_REDEFINE_EXTNAME */
522 530 #define listen __xnet_listen
523 531 #endif /* __PRAGMA_REDEFINE_EXTNAME */
524 532 #endif /* (_XPG4_2) && !defined(_XPG5) */
525 533
526 534 #if !defined(_KERNEL) || defined(_BOOT)
527 535 extern int accept(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
528 536 extern int accept4(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t, int);
529 537 extern int bind(int, const struct sockaddr *, socklen_t);
530 538 extern int connect(int, const struct sockaddr *, socklen_t);
531 539 extern int getpeername(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
532 540 extern int getsockname(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
533 541 extern int getsockopt(int, int, int, void *_RESTRICT_KYWD, Psocklen_t);
534 542 extern int listen(int, int); /* XXX - fixme??? where do I go */
535 543 extern int socketpair(int, int, int, int *);
536 544 extern ssize_t recv(int, void *, size_t, int);
537 545 extern ssize_t recvfrom(int, void *_RESTRICT_KYWD, size_t, int,
538 546 struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
539 547 extern ssize_t recvmsg(int, struct msghdr *, int);
540 548 extern ssize_t send(int, const void *, size_t, int);
541 549 extern ssize_t sendmsg(int, const struct msghdr *, int);
542 550 extern ssize_t sendto(int, const void *, size_t, int, const struct sockaddr *,
543 551 socklen_t);
544 552 extern int setsockopt(int, int, int, const void *, socklen_t);
545 553 extern int shutdown(int, int);
546 554 extern int socket(int, int, int);
547 555
548 556 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
549 557 extern int sockatmark(int);
550 558 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
551 559 #endif /* !defined(_KERNEL) || defined(_BOOT) */
552 560
553 561 #ifdef __cplusplus
554 562 }
555 563 #endif
556 564
557 565 #endif /* _SYS_SOCKET_H */
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