The Tor Browser / file comparison
comparison: netwerk/sctp/src/user_socketvar.h
netwerk/sctp/src/user_socketvar.h
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
equal
deleted
inserted
replaced
| -1:000000000000 | 0:c905104ce282 |
|---|---|
| 1 /*- | |
| 2 * Copyright (c) 1982, 1986, 1990, 1993 | |
| 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 * 4. Neither the name of the University nor the names of its contributors | |
| 14 * may be used to endorse or promote products derived from this software | |
| 15 * without specific prior written permission. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 * SUCH DAMAGE. | |
| 28 * | |
| 29 */ | |
| 30 | |
| 31 /* __Userspace__ version of <sys/socketvar.h> goes here.*/ | |
| 32 | |
| 33 #ifndef _USER_SOCKETVAR_H_ | |
| 34 #define _USER_SOCKETVAR_H_ | |
| 35 | |
| 36 #if defined(__Userspace_os_Darwin) | |
| 37 #include <sys/types.h> | |
| 38 #include <unistd.h> | |
| 39 #endif | |
| 40 | |
| 41 /* #include <sys/selinfo.h> */ /*__Userspace__ alternative?*/ /* for struct selinfo */ | |
| 42 /* #include <sys/_lock.h> was 0 byte file */ | |
| 43 /* #include <sys/_mutex.h> was 0 byte file */ | |
| 44 /* #include <sys/_sx.h> */ /*__Userspace__ alternative?*/ | |
| 45 #if !defined(__Userspace_os_DragonFly) && !defined(__Userspace_os_FreeBSD) && !defined(__Userspace_os_NetBSD) && !defined(__Userspace_os_Windows) | |
| 46 #include <sys/uio.h> | |
| 47 #endif | |
| 48 #define SOCK_MAXADDRLEN 255 | |
| 49 #if !defined(MSG_NOTIFICATION) | |
| 50 #define MSG_NOTIFICATION 0x2000 /* SCTP notification */ | |
| 51 #endif | |
| 52 #define SCTP_SO_LINGER 0x0001 | |
| 53 #define SCTP_SO_ACCEPTCONN 0x0002 | |
| 54 #define SS_CANTRCVMORE 0x020 | |
| 55 #define SS_CANTSENDMORE 0x010 | |
| 56 | |
| 57 #if defined(__Userspace_os_Darwin) || defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_OpenBSD) || defined (__Userspace_os_Windows) | |
| 58 #define UIO_MAXIOV 1024 | |
| 59 #define ERESTART (-1) | |
| 60 #endif | |
| 61 | |
| 62 #if !defined(__Userspace_os_Darwin) && !defined(__Userspace_os_NetBSD) && !defined(__Userspace_os_OpenBSD) | |
| 63 enum uio_rw { UIO_READ, UIO_WRITE }; | |
| 64 #endif | |
| 65 | |
| 66 #if !defined(__Userspace_os_NetBSD) && !defined(__Userspace_os_OpenBSD) | |
| 67 /* Segment flag values. */ | |
| 68 enum uio_seg { | |
| 69 UIO_USERSPACE, /* from user data space */ | |
| 70 UIO_SYSSPACE /* from system space */ | |
| 71 }; | |
| 72 #endif | |
| 73 | |
| 74 struct proc { | |
| 75 int stub; /* struct proc is a dummy for __Userspace__ */ | |
| 76 }; | |
| 77 | |
| 78 MALLOC_DECLARE(M_ACCF); | |
| 79 MALLOC_DECLARE(M_PCB); | |
| 80 MALLOC_DECLARE(M_SONAME); | |
| 81 | |
| 82 /* __Userspace__ Are these all the fields we need? | |
| 83 * Removing struct thread *uio_td; owner field | |
| 84 */ | |
| 85 struct uio { | |
| 86 struct iovec *uio_iov; /* scatter/gather list */ | |
| 87 int uio_iovcnt; /* length of scatter/gather list */ | |
| 88 off_t uio_offset; /* offset in target object */ | |
| 89 int uio_resid; /* remaining bytes to process */ | |
| 90 enum uio_seg uio_segflg; /* address space */ | |
| 91 enum uio_rw uio_rw; /* operation */ | |
| 92 }; | |
| 93 | |
| 94 | |
| 95 /* __Userspace__ */ | |
| 96 | |
| 97 /* | |
| 98 * Kernel structure per socket. | |
| 99 * Contains send and receive buffer queues, | |
| 100 * handle on protocol and pointer to protocol | |
| 101 * private data and error information. | |
| 102 */ | |
| 103 #if defined (__Userspace_os_Windows) | |
| 104 #define AF_ROUTE 17 | |
| 105 typedef __int32 pid_t; | |
| 106 typedef unsigned __int32 uid_t; | |
| 107 enum sigType { | |
| 108 SIGNAL = 0, | |
| 109 BROADCAST = 1, | |
| 110 MAX_EVENTS = 2 | |
| 111 }; | |
| 112 #endif | |
| 113 | |
| 114 /*- | |
| 115 * Locking key to struct socket: | |
| 116 * (a) constant after allocation, no locking required. | |
| 117 * (b) locked by SOCK_LOCK(so). | |
| 118 * (c) locked by SOCKBUF_LOCK(&so->so_rcv). | |
| 119 * (d) locked by SOCKBUF_LOCK(&so->so_snd). | |
| 120 * (e) locked by ACCEPT_LOCK(). | |
| 121 * (f) not locked since integer reads/writes are atomic. | |
| 122 * (g) used only as a sleep/wakeup address, no value. | |
| 123 * (h) locked by global mutex so_global_mtx. | |
| 124 */ | |
| 125 struct socket { | |
| 126 int so_count; /* (b) reference count */ | |
| 127 short so_type; /* (a) generic type, see socket.h */ | |
| 128 short so_options; /* from socket call, see socket.h */ | |
| 129 short so_linger; /* time to linger while closing */ | |
| 130 short so_state; /* (b) internal state flags SS_* */ | |
| 131 int so_qstate; /* (e) internal state flags SQ_* */ | |
| 132 void *so_pcb; /* protocol control block */ | |
| 133 int so_dom; | |
| 134 /* | |
| 135 * Variables for connection queuing. | |
| 136 * Socket where accepts occur is so_head in all subsidiary sockets. | |
| 137 * If so_head is 0, socket is not related to an accept. | |
| 138 * For head socket so_incomp queues partially completed connections, | |
| 139 * while so_comp is a queue of connections ready to be accepted. | |
| 140 * If a connection is aborted and it has so_head set, then | |
| 141 * it has to be pulled out of either so_incomp or so_comp. | |
| 142 * We allow connections to queue up based on current queue lengths | |
| 143 * and limit on number of queued connections for this socket. | |
| 144 */ | |
| 145 struct socket *so_head; /* (e) back pointer to listen socket */ | |
| 146 TAILQ_HEAD(, socket) so_incomp; /* (e) queue of partial unaccepted connections */ | |
| 147 TAILQ_HEAD(, socket) so_comp; /* (e) queue of complete unaccepted connections */ | |
| 148 TAILQ_ENTRY(socket) so_list; /* (e) list of unaccepted connections */ | |
| 149 u_short so_qlen; /* (e) number of unaccepted connections */ | |
| 150 u_short so_incqlen; /* (e) number of unaccepted incomplete | |
| 151 connections */ | |
| 152 u_short so_qlimit; /* (e) max number queued connections */ | |
| 153 short so_timeo; /* (g) connection timeout */ | |
| 154 userland_cond_t timeo_cond; /* timeo_cond condition variable being used in wakeup */ | |
| 155 | |
| 156 u_short so_error; /* (f) error affecting connection */ | |
| 157 struct sigio *so_sigio; /* [sg] information for async I/O or | |
| 158 out of band data (SIGURG) */ | |
| 159 u_long so_oobmark; /* (c) chars to oob mark */ | |
| 160 TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */ | |
| 161 /* | |
| 162 * Variables for socket buffering. | |
| 163 */ | |
| 164 struct sockbuf { | |
| 165 /* __Userspace__ Many of these fields may | |
| 166 * not be required for the sctp stack. | |
| 167 * Commenting out the following. | |
| 168 * Including pthread mutex and condition variable to be | |
| 169 * used by sbwait, sorwakeup and sowwakeup. | |
| 170 */ | |
| 171 /* struct selinfo sb_sel;*/ /* process selecting read/write */ | |
| 172 /* struct mtx sb_mtx;*/ /* sockbuf lock */ | |
| 173 /* struct sx sb_sx;*/ /* prevent I/O interlacing */ | |
| 174 userland_cond_t sb_cond; /* sockbuf condition variable */ | |
| 175 userland_mutex_t sb_mtx; /* sockbuf lock associated with sb_cond */ | |
| 176 short sb_state; /* (c/d) socket state on sockbuf */ | |
| 177 #define sb_startzero sb_mb | |
| 178 struct mbuf *sb_mb; /* (c/d) the mbuf chain */ | |
| 179 struct mbuf *sb_mbtail; /* (c/d) the last mbuf in the chain */ | |
| 180 struct mbuf *sb_lastrecord; /* (c/d) first mbuf of last | |
| 181 * record in socket buffer */ | |
| 182 struct mbuf *sb_sndptr; /* (c/d) pointer into mbuf chain */ | |
| 183 u_int sb_sndptroff; /* (c/d) byte offset of ptr into chain */ | |
| 184 u_int sb_cc; /* (c/d) actual chars in buffer */ | |
| 185 u_int sb_hiwat; /* (c/d) max actual char count */ | |
| 186 u_int sb_mbcnt; /* (c/d) chars of mbufs used */ | |
| 187 u_int sb_mbmax; /* (c/d) max chars of mbufs to use */ | |
| 188 u_int sb_ctl; /* (c/d) non-data chars in buffer */ | |
| 189 int sb_lowat; /* (c/d) low water mark */ | |
| 190 int sb_timeo; /* (c/d) timeout for read/write */ | |
| 191 short sb_flags; /* (c/d) flags, see below */ | |
| 192 } so_rcv, so_snd; | |
| 193 /* | |
| 194 * Constants for sb_flags field of struct sockbuf. | |
| 195 */ | |
| 196 #define SB_MAX (256*1024) /* default for max chars in sockbuf */ | |
| 197 #define SB_RAW (64*1024*2) /*Aligning so->so_rcv.sb_hiwat with the receive buffer size of raw socket*/ | |
| 198 /* | |
| 199 * Constants for sb_flags field of struct sockbuf. | |
| 200 */ | |
| 201 #define SB_WAIT 0x04 /* someone is waiting for data/space */ | |
| 202 #define SB_SEL 0x08 /* someone is selecting */ | |
| 203 #define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ | |
| 204 #define SB_UPCALL 0x20 /* someone wants an upcall */ | |
| 205 #define SB_NOINTR 0x40 /* operations not interruptible */ | |
| 206 #define SB_AIO 0x80 /* AIO operations queued */ | |
| 207 #define SB_KNOTE 0x100 /* kernel note attached */ | |
| 208 #define SB_AUTOSIZE 0x800 /* automatically size socket buffer */ | |
| 209 | |
| 210 void (*so_upcall)(struct socket *, void *, int); | |
| 211 void *so_upcallarg; | |
| 212 struct ucred *so_cred; /* (a) user credentials */ | |
| 213 struct label *so_label; /* (b) MAC label for socket */ | |
| 214 struct label *so_peerlabel; /* (b) cached MAC label for peer */ | |
| 215 /* NB: generation count must not be first. */ | |
| 216 uint32_t so_gencnt; /* (h) generation count */ | |
| 217 void *so_emuldata; /* (b) private data for emulators */ | |
| 218 struct so_accf { | |
| 219 struct accept_filter *so_accept_filter; | |
| 220 void *so_accept_filter_arg; /* saved filter args */ | |
| 221 char *so_accept_filter_str; /* saved user args */ | |
| 222 } *so_accf; | |
| 223 }; | |
| 224 | |
| 225 #define SB_EMPTY_FIXUP(sb) do { \ | |
| 226 if ((sb)->sb_mb == NULL) { \ | |
| 227 (sb)->sb_mbtail = NULL; \ | |
| 228 (sb)->sb_lastrecord = NULL; \ | |
| 229 } \ | |
| 230 } while (/*CONSTCOND*/0) | |
| 231 | |
| 232 /* | |
| 233 * Global accept mutex to serialize access to accept queues and | |
| 234 * fields associated with multiple sockets. This allows us to | |
| 235 * avoid defining a lock order between listen and accept sockets | |
| 236 * until such time as it proves to be a good idea. | |
| 237 */ | |
| 238 #if defined(__Userspace_os_Windows) | |
| 239 extern userland_mutex_t accept_mtx; | |
| 240 extern userland_cond_t accept_cond; | |
| 241 #define ACCEPT_LOCK_ASSERT() | |
| 242 #define ACCEPT_LOCK() do { \ | |
| 243 EnterCriticalSection(&accept_mtx); \ | |
| 244 } while (0) | |
| 245 #define ACCEPT_UNLOCK() do { \ | |
| 246 LeaveCriticalSection(&accept_mtx); \ | |
| 247 } while (0) | |
| 248 #define ACCEPT_UNLOCK_ASSERT() | |
| 249 #else | |
| 250 extern userland_mutex_t accept_mtx; | |
| 251 extern userland_cond_t accept_cond; | |
| 252 #define ACCEPT_LOCK_ASSERT() KASSERT(pthread_mutex_trylock(&accept_mtx) == EBUSY, ("%s: accept_mtx not locked", __func__)) | |
| 253 #define ACCEPT_LOCK() (void)pthread_mutex_lock(&accept_mtx) | |
| 254 #define ACCEPT_UNLOCK() (void)pthread_mutex_unlock(&accept_mtx) | |
| 255 #define ACCEPT_UNLOCK_ASSERT() do{ \ | |
| 256 KASSERT(pthread_mutex_trylock(&accept_mtx) == 0, ("%s: accept_mtx locked", __func__)); \ | |
| 257 (void)pthread_mutex_unlock(&accept_mtx); \ | |
| 258 } while (0) | |
| 259 #endif | |
| 260 | |
| 261 /* | |
| 262 * Per-socket buffer mutex used to protect most fields in the socket | |
| 263 * buffer. | |
| 264 */ | |
| 265 #define SOCKBUF_MTX(_sb) (&(_sb)->sb_mtx) | |
| 266 #if defined (__Userspace_os_Windows) | |
| 267 #define SOCKBUF_LOCK_INIT(_sb, _name) \ | |
| 268 InitializeCriticalSection(SOCKBUF_MTX(_sb)) | |
| 269 #define SOCKBUF_LOCK_DESTROY(_sb) DeleteCriticalSection(SOCKBUF_MTX(_sb)) | |
| 270 #define SOCKBUF_COND_INIT(_sb) InitializeConditionVariable((&(_sb)->sb_cond)) | |
| 271 #define SOCKBUF_COND_DESTROY(_sb) DeleteConditionVariable((&(_sb)->sb_cond)) | |
| 272 #define SOCK_COND_INIT(_so) InitializeConditionVariable((&(_so)->timeo_cond)) | |
| 273 #define SOCK_COND_DESTROY(_so) DeleteConditionVariable((&(_so)->timeo_cond)) | |
| 274 #define SOCK_COND(_so) (&(_so)->timeo_cond) | |
| 275 #else | |
| 276 #define SOCKBUF_LOCK_INIT(_sb, _name) \ | |
| 277 pthread_mutex_init(SOCKBUF_MTX(_sb), NULL) | |
| 278 #define SOCKBUF_LOCK_DESTROY(_sb) pthread_mutex_destroy(SOCKBUF_MTX(_sb)) | |
| 279 #define SOCKBUF_COND_INIT(_sb) pthread_cond_init((&(_sb)->sb_cond), NULL) | |
| 280 #define SOCKBUF_COND_DESTROY(_sb) pthread_cond_destroy((&(_sb)->sb_cond)) | |
| 281 #define SOCK_COND_INIT(_so) pthread_cond_init((&(_so)->timeo_cond), NULL) | |
| 282 #define SOCK_COND_DESTROY(_so) pthread_cond_destroy((&(_so)->timeo_cond)) | |
| 283 #define SOCK_COND(_so) (&(_so)->timeo_cond) | |
| 284 #endif | |
| 285 /*__Userspace__ SOCKBUF_LOCK(_sb) is now defined in netinet/sctp_process_lock.h */ | |
| 286 | |
| 287 /* #define SOCKBUF_OWNED(_sb) mtx_owned(SOCKBUF_MTX(_sb)) unused */ | |
| 288 /*__Userspace__ SOCKBUF_UNLOCK(_sb) is now defined in netinet/sctp_process_lock.h */ | |
| 289 | |
| 290 /*__Userspace__ SOCKBUF_LOCK_ASSERT(_sb) is now defined in netinet/sctp_process_lock.h */ | |
| 291 | |
| 292 /* #define SOCKBUF_UNLOCK_ASSERT(_sb) mtx_assert(SOCKBUF_MTX(_sb), MA_NOTOWNED) unused */ | |
| 293 | |
| 294 /* | |
| 295 * Per-socket mutex: we reuse the receive socket buffer mutex for space | |
| 296 * efficiency. This decision should probably be revisited as we optimize | |
| 297 * locking for the socket code. | |
| 298 */ | |
| 299 #define SOCK_MTX(_so) SOCKBUF_MTX(&(_so)->so_rcv) | |
| 300 /*__Userspace__ SOCK_LOCK(_so) is now defined in netinet/sctp_process_lock.h */ | |
| 301 | |
| 302 /* #define SOCK_OWNED(_so) SOCKBUF_OWNED(&(_so)->so_rcv) unused */ | |
| 303 /*__Userspace__ SOCK_UNLOCK(_so) is now defined in netinet/sctp_process_lock.h */ | |
| 304 | |
| 305 #define SOCK_LOCK_ASSERT(_so) SOCKBUF_LOCK_ASSERT(&(_so)->so_rcv) | |
| 306 | |
| 307 /* | |
| 308 * Socket state bits. | |
| 309 * | |
| 310 * Historically, this bits were all kept in the so_state field. For | |
| 311 * locking reasons, they are now in multiple fields, as they are | |
| 312 * locked differently. so_state maintains basic socket state protected | |
| 313 * by the socket lock. so_qstate holds information about the socket | |
| 314 * accept queues. Each socket buffer also has a state field holding | |
| 315 * information relevant to that socket buffer (can't send, rcv). Many | |
| 316 * fields will be read without locks to improve performance and avoid | |
| 317 * lock order issues. However, this approach must be used with caution. | |
| 318 */ | |
| 319 #define SS_NOFDREF 0x0001 /* no file table ref any more */ | |
| 320 #define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ | |
| 321 #define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ | |
| 322 #define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ | |
| 323 #define SS_NBIO 0x0100 /* non-blocking ops */ | |
| 324 #define SS_ASYNC 0x0200 /* async i/o notify */ | |
| 325 #define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ | |
| 326 #define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ | |
| 327 /* | |
| 328 * Protocols can mark a socket as SS_PROTOREF to indicate that, following | |
| 329 * pru_detach, they still want the socket to persist, and will free it | |
| 330 * themselves when they are done. Protocols should only ever call sofree() | |
| 331 * following setting this flag in pru_detach(), and never otherwise, as | |
| 332 * sofree() bypasses socket reference counting. | |
| 333 */ | |
| 334 #define SS_PROTOREF 0x4000 /* strong protocol reference */ | |
| 335 | |
| 336 /* | |
| 337 * Socket state bits now stored in the socket buffer state field. | |
| 338 */ | |
| 339 #define SBS_CANTSENDMORE 0x0010 /* can't send more data to peer */ | |
| 340 #define SBS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ | |
| 341 #define SBS_RCVATMARK 0x0040 /* at mark on input */ | |
| 342 | |
| 343 /* | |
| 344 * Socket state bits stored in so_qstate. | |
| 345 */ | |
| 346 #define SQ_INCOMP 0x0800 /* unaccepted, incomplete connection */ | |
| 347 #define SQ_COMP 0x1000 /* unaccepted, complete connection */ | |
| 348 | |
| 349 /* | |
| 350 * Externalized form of struct socket used by the sysctl(3) interface. | |
| 351 */ | |
| 352 struct xsocket { | |
| 353 size_t xso_len; /* length of this structure */ | |
| 354 struct socket *xso_so; /* makes a convenient handle sometimes */ | |
| 355 short so_type; | |
| 356 short so_options; | |
| 357 short so_linger; | |
| 358 short so_state; | |
| 359 caddr_t so_pcb; /* another convenient handle */ | |
| 360 int xso_protocol; | |
| 361 int xso_family; | |
| 362 u_short so_qlen; | |
| 363 u_short so_incqlen; | |
| 364 u_short so_qlimit; | |
| 365 short so_timeo; | |
| 366 u_short so_error; | |
| 367 pid_t so_pgid; | |
| 368 u_long so_oobmark; | |
| 369 struct xsockbuf { | |
| 370 u_int sb_cc; | |
| 371 u_int sb_hiwat; | |
| 372 u_int sb_mbcnt; | |
| 373 u_int sb_mbmax; | |
| 374 int sb_lowat; | |
| 375 int sb_timeo; | |
| 376 short sb_flags; | |
| 377 } so_rcv, so_snd; | |
| 378 uid_t so_uid; /* XXX */ | |
| 379 }; | |
| 380 | |
| 381 #if defined(_KERNEL) | |
| 382 | |
| 383 | |
| 384 /* | |
| 385 * Macros for sockets and socket buffering. | |
| 386 */ | |
| 387 | |
| 388 /* | |
| 389 * Do we need to notify the other side when I/O is possible? | |
| 390 */ | |
| 391 #define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ | |
| 392 SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) | |
| 393 | |
| 394 /* | |
| 395 * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? | |
| 396 * This is problematical if the fields are unsigned, as the space might | |
| 397 * still be negative (cc > hiwat or mbcnt > mbmax). Should detect | |
| 398 * overflow and return 0. Should use "lmin" but it doesn't exist now. | |
| 399 */ | |
| 400 #define sbspace(sb) \ | |
| 401 ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ | |
| 402 (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) | |
| 403 | |
| 404 /* do we have to send all at once on a socket? */ | |
| 405 #define sosendallatonce(so) \ | |
| 406 ((so)->so_proto->pr_flags & PR_ATOMIC) | |
| 407 | |
| 408 /* can we read something from so? */ | |
| 409 #define soreadable(so) \ | |
| 410 ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ | |
| 411 ((so)->so_rcv.sb_state & SBS_CANTRCVMORE) || \ | |
| 412 !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) | |
| 413 | |
| 414 /* can we write something to so? */ | |
| 415 #define sowriteable(so) \ | |
| 416 ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ | |
| 417 (((so)->so_state&SS_ISCONNECTED) || \ | |
| 418 ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ | |
| 419 ((so)->so_snd.sb_state & SBS_CANTSENDMORE) || \ | |
| 420 (so)->so_error) | |
| 421 | |
| 422 /* adjust counters in sb reflecting allocation of m */ | |
| 423 #define sballoc(sb, m) { \ | |
| 424 (sb)->sb_cc += (m)->m_len; \ | |
| 425 if ((m)->m_type != MT_DATA && (m)->m_type != MT_OOBDATA) \ | |
| 426 (sb)->sb_ctl += (m)->m_len; \ | |
| 427 (sb)->sb_mbcnt += MSIZE; \ | |
| 428 if ((m)->m_flags & M_EXT) \ | |
| 429 (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ | |
| 430 } | |
| 431 | |
| 432 /* adjust counters in sb reflecting freeing of m */ | |
| 433 #define sbfree(sb, m) { \ | |
| 434 (sb)->sb_cc -= (m)->m_len; \ | |
| 435 if ((m)->m_type != MT_DATA && (m)->m_type != MT_OOBDATA) \ | |
| 436 (sb)->sb_ctl -= (m)->m_len; \ | |
| 437 (sb)->sb_mbcnt -= MSIZE; \ | |
| 438 if ((m)->m_flags & M_EXT) \ | |
| 439 (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ | |
| 440 if ((sb)->sb_sndptr == (m)) { \ | |
| 441 (sb)->sb_sndptr = NULL; \ | |
| 442 (sb)->sb_sndptroff = 0; \ | |
| 443 } \ | |
| 444 if ((sb)->sb_sndptroff != 0) \ | |
| 445 (sb)->sb_sndptroff -= (m)->m_len; \ | |
| 446 } | |
| 447 | |
| 448 /* | |
| 449 * soref()/sorele() ref-count the socket structure. Note that you must | |
| 450 * still explicitly close the socket, but the last ref count will free | |
| 451 * the structure. | |
| 452 */ | |
| 453 #define soref(so) do { \ | |
| 454 SOCK_LOCK_ASSERT(so); \ | |
| 455 ++(so)->so_count; \ | |
| 456 } while (0) | |
| 457 | |
| 458 #define sorele(so) do { \ | |
| 459 ACCEPT_LOCK_ASSERT(); \ | |
| 460 SOCK_LOCK_ASSERT(so); \ | |
| 461 KASSERT((so)->so_count > 0, ("sorele")); \ | |
| 462 if (--(so)->so_count == 0) \ | |
| 463 sofree(so); \ | |
| 464 else { \ | |
| 465 SOCK_UNLOCK(so); \ | |
| 466 ACCEPT_UNLOCK(); \ | |
| 467 } \ | |
| 468 } while (0) | |
| 469 | |
| 470 #define sotryfree(so) do { \ | |
| 471 ACCEPT_LOCK_ASSERT(); \ | |
| 472 SOCK_LOCK_ASSERT(so); \ | |
| 473 if ((so)->so_count == 0) \ | |
| 474 sofree(so); \ | |
| 475 else { \ | |
| 476 SOCK_UNLOCK(so); \ | |
| 477 ACCEPT_UNLOCK(); \ | |
| 478 } \ | |
| 479 } while(0) | |
| 480 | |
| 481 /* | |
| 482 * In sorwakeup() and sowwakeup(), acquire the socket buffer lock to | |
| 483 * avoid a non-atomic test-and-wakeup. However, sowakeup is | |
| 484 * responsible for releasing the lock if it is called. We unlock only | |
| 485 * if we don't call into sowakeup. If any code is introduced that | |
| 486 * directly invokes the underlying sowakeup() primitives, it must | |
| 487 * maintain the same semantics. | |
| 488 */ | |
| 489 #define sorwakeup_locked(so) do { \ | |
| 490 SOCKBUF_LOCK_ASSERT(&(so)->so_rcv); \ | |
| 491 if (sb_notify(&(so)->so_rcv)) \ | |
| 492 sowakeup((so), &(so)->so_rcv); \ | |
| 493 else \ | |
| 494 SOCKBUF_UNLOCK(&(so)->so_rcv); \ | |
| 495 } while (0) | |
| 496 | |
| 497 #define sorwakeup(so) do { \ | |
| 498 SOCKBUF_LOCK(&(so)->so_rcv); \ | |
| 499 sorwakeup_locked(so); \ | |
| 500 } while (0) | |
| 501 | |
| 502 #define sowwakeup_locked(so) do { \ | |
| 503 SOCKBUF_LOCK_ASSERT(&(so)->so_snd); \ | |
| 504 if (sb_notify(&(so)->so_snd)) \ | |
| 505 sowakeup((so), &(so)->so_snd); \ | |
| 506 else \ | |
| 507 SOCKBUF_UNLOCK(&(so)->so_snd); \ | |
| 508 } while (0) | |
| 509 | |
| 510 #define sowwakeup(so) do { \ | |
| 511 SOCKBUF_LOCK(&(so)->so_snd); \ | |
| 512 sowwakeup_locked(so); \ | |
| 513 } while (0) | |
| 514 | |
| 515 /* | |
| 516 * Argument structure for sosetopt et seq. This is in the KERNEL | |
| 517 * section because it will never be visible to user code. | |
| 518 */ | |
| 519 enum sopt_dir { SOPT_GET, SOPT_SET }; | |
| 520 struct sockopt { | |
| 521 enum sopt_dir sopt_dir; /* is this a get or a set? */ | |
| 522 int sopt_level; /* second arg of [gs]etsockopt */ | |
| 523 int sopt_name; /* third arg of [gs]etsockopt */ | |
| 524 void *sopt_val; /* fourth arg of [gs]etsockopt */ | |
| 525 size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ | |
| 526 struct thread *sopt_td; /* calling thread or null if kernel */ | |
| 527 }; | |
| 528 | |
| 529 struct accept_filter { | |
| 530 char accf_name[16]; | |
| 531 void (*accf_callback) | |
| 532 (struct socket *so, void *arg, int waitflag); | |
| 533 void * (*accf_create) | |
| 534 (struct socket *so, char *arg); | |
| 535 void (*accf_destroy) | |
| 536 (struct socket *so); | |
| 537 SLIST_ENTRY(accept_filter) accf_next; | |
| 538 }; | |
| 539 | |
| 540 extern int maxsockets; | |
| 541 extern u_long sb_max; | |
| 542 extern struct uma_zone *socket_zone; | |
| 543 extern so_gen_t so_gencnt; | |
| 544 | |
| 545 struct mbuf; | |
| 546 struct sockaddr; | |
| 547 struct ucred; | |
| 548 struct uio; | |
| 549 | |
| 550 /* | |
| 551 * From uipc_socket and friends | |
| 552 */ | |
| 553 int do_getopt_accept_filter(struct socket *so, struct sockopt *sopt); | |
| 554 int do_setopt_accept_filter(struct socket *so, struct sockopt *sopt); | |
| 555 int so_setsockopt(struct socket *so, int level, int optname, | |
| 556 void *optval, size_t optlen); | |
| 557 int sockargs(struct mbuf **mp, caddr_t buf, int buflen, int type); | |
| 558 int getsockaddr(struct sockaddr **namp, caddr_t uaddr, size_t len); | |
| 559 void sbappend(struct sockbuf *sb, struct mbuf *m); | |
| 560 void sbappend_locked(struct sockbuf *sb, struct mbuf *m); | |
| 561 void sbappendstream(struct sockbuf *sb, struct mbuf *m); | |
| 562 void sbappendstream_locked(struct sockbuf *sb, struct mbuf *m); | |
| 563 int sbappendaddr(struct sockbuf *sb, const struct sockaddr *asa, | |
| 564 struct mbuf *m0, struct mbuf *control); | |
| 565 int sbappendaddr_locked(struct sockbuf *sb, const struct sockaddr *asa, | |
| 566 struct mbuf *m0, struct mbuf *control); | |
| 567 int sbappendcontrol(struct sockbuf *sb, struct mbuf *m0, | |
| 568 struct mbuf *control); | |
| 569 int sbappendcontrol_locked(struct sockbuf *sb, struct mbuf *m0, | |
| 570 struct mbuf *control); | |
| 571 void sbappendrecord(struct sockbuf *sb, struct mbuf *m0); | |
| 572 void sbappendrecord_locked(struct sockbuf *sb, struct mbuf *m0); | |
| 573 void sbcheck(struct sockbuf *sb); | |
| 574 void sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n); | |
| 575 struct mbuf * | |
| 576 sbcreatecontrol(caddr_t p, int size, int type, int level); | |
| 577 void sbdestroy(struct sockbuf *sb, struct socket *so); | |
| 578 void sbdrop(struct sockbuf *sb, int len); | |
| 579 void sbdrop_locked(struct sockbuf *sb, int len); | |
| 580 void sbdroprecord(struct sockbuf *sb); | |
| 581 void sbdroprecord_locked(struct sockbuf *sb); | |
| 582 void sbflush(struct sockbuf *sb); | |
| 583 void sbflush_locked(struct sockbuf *sb); | |
| 584 void sbrelease(struct sockbuf *sb, struct socket *so); | |
| 585 void sbrelease_locked(struct sockbuf *sb, struct socket *so); | |
| 586 int sbreserve(struct sockbuf *sb, u_long cc, struct socket *so, | |
| 587 struct thread *td); | |
| 588 int sbreserve_locked(struct sockbuf *sb, u_long cc, struct socket *so, | |
| 589 struct thread *td); | |
| 590 struct mbuf * | |
| 591 sbsndptr(struct sockbuf *sb, u_int off, u_int len, u_int *moff); | |
| 592 void sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb); | |
| 593 int sbwait(struct sockbuf *sb); | |
| 594 int sblock(struct sockbuf *sb, int flags); | |
| 595 void sbunlock(struct sockbuf *sb); | |
| 596 void soabort(struct socket *so); | |
| 597 int soaccept(struct socket *so, struct sockaddr **nam); | |
| 598 int socheckuid(struct socket *so, uid_t uid); | |
| 599 int sobind(struct socket *so, struct sockaddr *nam, struct thread *td); | |
| 600 void socantrcvmore(struct socket *so); | |
| 601 void socantrcvmore_locked(struct socket *so); | |
| 602 void socantsendmore(struct socket *so); | |
| 603 void socantsendmore_locked(struct socket *so); | |
| 604 int soclose(struct socket *so); | |
| 605 int soconnect(struct socket *so, struct sockaddr *nam, struct thread *td); | |
| 606 int soconnect2(struct socket *so1, struct socket *so2); | |
| 607 int socow_setup(struct mbuf *m0, struct uio *uio); | |
| 608 int socreate(int dom, struct socket **aso, int type, int proto, | |
| 609 struct ucred *cred, struct thread *td); | |
| 610 int sodisconnect(struct socket *so); | |
| 611 struct sockaddr *sodupsockaddr(const struct sockaddr *sa, int mflags); | |
| 612 void sofree(struct socket *so); | |
| 613 int sogetopt(struct socket *so, struct sockopt *sopt); | |
| 614 void sohasoutofband(struct socket *so); | |
| 615 void soisconnected(struct socket *so); | |
| 616 void soisconnecting(struct socket *so); | |
| 617 void soisdisconnected(struct socket *so); | |
| 618 void soisdisconnecting(struct socket *so); | |
| 619 int solisten(struct socket *so, int backlog, struct thread *td); | |
| 620 void solisten_proto(struct socket *so, int backlog); | |
| 621 int solisten_proto_check(struct socket *so); | |
| 622 struct socket * | |
| 623 sonewconn(struct socket *head, int connstatus); | |
| 624 int sooptcopyin(struct sockopt *sopt, void *buf, size_t len, size_t minlen); | |
| 625 int sooptcopyout(struct sockopt *sopt, const void *buf, size_t len); | |
| 626 | |
| 627 /* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ | |
| 628 int soopt_getm(struct sockopt *sopt, struct mbuf **mp); | |
| 629 int soopt_mcopyin(struct sockopt *sopt, struct mbuf *m); | |
| 630 int soopt_mcopyout(struct sockopt *sopt, struct mbuf *m); | |
| 631 | |
| 632 int sopoll(struct socket *so, int events, struct ucred *active_cred, | |
| 633 struct thread *td); | |
| 634 int sopoll_generic(struct socket *so, int events, | |
| 635 struct ucred *active_cred, struct thread *td); | |
| 636 int soreceive(struct socket *so, struct sockaddr **paddr, struct uio *uio, | |
| 637 struct mbuf **mp0, struct mbuf **controlp, int *flagsp); | |
| 638 int soreceive_generic(struct socket *so, struct sockaddr **paddr, | |
| 639 struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, | |
| 640 int *flagsp); | |
| 641 int soreserve(struct socket *so, u_long sndcc, u_long rcvcc); | |
| 642 void sorflush(struct socket *so); | |
| 643 int sosend(struct socket *so, struct sockaddr *addr, struct uio *uio, | |
| 644 struct mbuf *top, struct mbuf *control, int flags, | |
| 645 struct thread *td); | |
| 646 int sosend_dgram(struct socket *so, struct sockaddr *addr, | |
| 647 struct uio *uio, struct mbuf *top, struct mbuf *control, | |
| 648 int flags, struct thread *td); | |
| 649 int sosend_generic(struct socket *so, struct sockaddr *addr, | |
| 650 struct uio *uio, struct mbuf *top, struct mbuf *control, | |
| 651 int flags, struct thread *td); | |
| 652 int sosetopt(struct socket *so, struct sockopt *sopt); | |
| 653 int soshutdown(struct socket *so, int how); | |
| 654 void sotoxsocket(struct socket *so, struct xsocket *xso); | |
| 655 void sowakeup(struct socket *so, struct sockbuf *sb); | |
| 656 | |
| 657 #ifdef SOCKBUF_DEBUG | |
| 658 void sblastrecordchk(struct sockbuf *, const char *, int); | |
| 659 #define SBLASTRECORDCHK(sb) sblastrecordchk((sb), __FILE__, __LINE__) | |
| 660 | |
| 661 void sblastmbufchk(struct sockbuf *, const char *, int); | |
| 662 #define SBLASTMBUFCHK(sb) sblastmbufchk((sb), __FILE__, __LINE__) | |
| 663 #else | |
| 664 #define SBLASTRECORDCHK(sb) /* nothing */ | |
| 665 #define SBLASTMBUFCHK(sb) /* nothing */ | |
| 666 #endif /* SOCKBUF_DEBUG */ | |
| 667 | |
| 668 /* | |
| 669 * Accept filter functions (duh). | |
| 670 */ | |
| 671 int accept_filt_add(struct accept_filter *filt); | |
| 672 int accept_filt_del(char *name); | |
| 673 struct accept_filter *accept_filt_get(char *name); | |
| 674 #ifdef ACCEPT_FILTER_MOD | |
| 675 #ifdef SYSCTL_DECL | |
| 676 SYSCTL_DECL(_net_inet_accf); | |
| 677 #endif | |
| 678 int accept_filt_generic_mod_event(module_t mod, int event, void *data); | |
| 679 #endif | |
| 680 | |
| 681 #endif /* _KERNEL */ | |
| 682 | |
| 683 | |
| 684 /*-------------------------------------------------------------*/ | |
| 685 /*-------------------------------------------------------------*/ | |
| 686 /* __Userspace__ */ | |
| 687 /*-------------------------------------------------------------*/ | |
| 688 /*-------------------------------------------------------------*/ | |
| 689 /* this new __Userspace__ section is to copy portions of the _KERNEL block | |
| 690 * above into, avoiding having to port the entire thing at once... | |
| 691 * For function prototypes, the full bodies are in user_socket.c . | |
| 692 */ | |
| 693 #if defined(__Userspace__) | |
| 694 | |
| 695 /* ---------------------------------------------------------- */ | |
| 696 /* --- function prototypes (implemented in user_socket.c) --- */ | |
| 697 /* ---------------------------------------------------------- */ | |
| 698 void soisconnecting(struct socket *so); | |
| 699 void soisdisconnecting(struct socket *so); | |
| 700 void soisconnected(struct socket *so); | |
| 701 struct socket * sonewconn(struct socket *head, int connstatus); | |
| 702 void socantrcvmore(struct socket *so); | |
| 703 void socantsendmore(struct socket *so); | |
| 704 | |
| 705 | |
| 706 | |
| 707 /* -------------- */ | |
| 708 /* --- macros --- */ | |
| 709 /* -------------- */ | |
| 710 | |
| 711 #define soref(so) do { \ | |
| 712 SOCK_LOCK_ASSERT(so); \ | |
| 713 ++(so)->so_count; \ | |
| 714 } while (0) | |
| 715 | |
| 716 #define sorele(so) do { \ | |
| 717 ACCEPT_LOCK_ASSERT(); \ | |
| 718 SOCK_LOCK_ASSERT(so); \ | |
| 719 KASSERT((so)->so_count > 0, ("sorele")); \ | |
| 720 if (--(so)->so_count == 0) \ | |
| 721 sofree(so); \ | |
| 722 else { \ | |
| 723 SOCK_UNLOCK(so); \ | |
| 724 ACCEPT_UNLOCK(); \ | |
| 725 } \ | |
| 726 } while (0) | |
| 727 | |
| 728 | |
| 729 /* replacing imin with min (user_environment.h) */ | |
| 730 #define sbspace(sb) \ | |
| 731 ((long) min((int)((sb)->sb_hiwat - (sb)->sb_cc), \ | |
| 732 (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) | |
| 733 | |
| 734 /* do we have to send all at once on a socket? */ | |
| 735 #define sosendallatonce(so) \ | |
| 736 ((so)->so_proto->pr_flags & PR_ATOMIC) | |
| 737 | |
| 738 /* can we read something from so? */ | |
| 739 #define soreadable(so) \ | |
| 740 ((int)((so)->so_rcv.sb_cc) >= (so)->so_rcv.sb_lowat || \ | |
| 741 ((so)->so_rcv.sb_state & SBS_CANTRCVMORE) || \ | |
| 742 !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) | |
| 743 | |
| 744 #if 0 /* original */ | |
| 745 #define PR_CONNREQUIRED 0x04 /* from sys/protosw.h "needed" for sowriteable */ | |
| 746 #define sowriteable(so) \ | |
| 747 ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ | |
| 748 (((so)->so_state&SS_ISCONNECTED) || \ | |
| 749 ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ | |
| 750 ((so)->so_snd.sb_state & SBS_CANTSENDMORE) || \ | |
| 751 (so)->so_error) | |
| 752 #else /* line with PR_CONNREQUIRED removed */ | |
| 753 /* can we write something to so? */ | |
| 754 #define sowriteable(so) \ | |
| 755 ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ | |
| 756 (((so)->so_state&SS_ISCONNECTED))) || \ | |
| 757 ((so)->so_snd.sb_state & SBS_CANTSENDMORE) || \ | |
| 758 (so)->so_error) | |
| 759 #endif | |
| 760 | |
| 761 extern void solisten_proto(struct socket *so, int backlog); | |
| 762 extern int solisten_proto_check(struct socket *so); | |
| 763 extern int sctp_listen(struct socket *so, int backlog, struct proc *p); | |
| 764 extern void socantrcvmore_locked(struct socket *so); | |
| 765 extern int sctp_bind(struct socket *so, struct sockaddr *addr); | |
| 766 extern int sctp6_bind(struct socket *so, struct sockaddr *addr, void *proc); | |
| 767 #if defined(__Userspace__) | |
| 768 extern int sctpconn_bind(struct socket *so, struct sockaddr *addr); | |
| 769 #endif | |
| 770 extern int sctp_accept(struct socket *so, struct sockaddr **addr); | |
| 771 extern int sctp_attach(struct socket *so, int proto, uint32_t vrf_id); | |
| 772 extern int sctp6_attach(struct socket *so, int proto, uint32_t vrf_id); | |
| 773 extern int sctp_abort(struct socket *so); | |
| 774 extern int sctp6_abort(struct socket *so); | |
| 775 extern void sctp_close(struct socket *so); | |
| 776 extern int soaccept(struct socket *so, struct sockaddr **nam); | |
| 777 extern int solisten(struct socket *so, int backlog); | |
| 778 extern int soreserve(struct socket *so, u_long sndcc, u_long rcvcc); | |
| 779 extern void sowakeup(struct socket *so, struct sockbuf *sb); | |
| 780 extern void wakeup(void *ident, struct socket *so); /*__Userspace__ */ | |
| 781 extern int uiomove(void *cp, int n, struct uio *uio); | |
| 782 extern int sbwait(struct sockbuf *sb); | |
| 783 extern int sodisconnect(struct socket *so); | |
| 784 extern int soconnect(struct socket *so, struct sockaddr *nam); | |
| 785 extern int sctp_disconnect(struct socket *so); | |
| 786 extern int sctp_connect(struct socket *so, struct sockaddr *addr); | |
| 787 extern int sctp6_connect(struct socket *so, struct sockaddr *addr); | |
| 788 #if defined(__Userspace__) | |
| 789 extern int sctpconn_connect(struct socket *so, struct sockaddr *addr); | |
| 790 #endif | |
| 791 extern void sctp_finish(void); | |
| 792 | |
| 793 /* ------------------------------------------------ */ | |
| 794 /* ----- macros copied from above ---- */ | |
| 795 /* ------------------------------------------------ */ | |
| 796 | |
| 797 /* | |
| 798 * Do we need to notify the other side when I/O is possible? | |
| 799 */ | |
| 800 #define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ | |
| 801 SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) | |
| 802 | |
| 803 | |
| 804 /* | |
| 805 * In sorwakeup() and sowwakeup(), acquire the socket buffer lock to | |
| 806 * avoid a non-atomic test-and-wakeup. However, sowakeup is | |
| 807 * responsible for releasing the lock if it is called. We unlock only | |
| 808 * if we don't call into sowakeup. If any code is introduced that | |
| 809 * directly invokes the underlying sowakeup() primitives, it must | |
| 810 * maintain the same semantics. | |
| 811 */ | |
| 812 #define sorwakeup_locked(so) do { \ | |
| 813 SOCKBUF_LOCK_ASSERT(&(so)->so_rcv); \ | |
| 814 if (sb_notify(&(so)->so_rcv)) \ | |
| 815 sowakeup((so), &(so)->so_rcv); \ | |
| 816 else \ | |
| 817 SOCKBUF_UNLOCK(&(so)->so_rcv); \ | |
| 818 } while (0) | |
| 819 | |
| 820 #define sorwakeup(so) do { \ | |
| 821 SOCKBUF_LOCK(&(so)->so_rcv); \ | |
| 822 sorwakeup_locked(so); \ | |
| 823 } while (0) | |
| 824 | |
| 825 #define sowwakeup_locked(so) do { \ | |
| 826 SOCKBUF_LOCK_ASSERT(&(so)->so_snd); \ | |
| 827 if (sb_notify(&(so)->so_snd)) \ | |
| 828 sowakeup((so), &(so)->so_snd); \ | |
| 829 else \ | |
| 830 SOCKBUF_UNLOCK(&(so)->so_snd); \ | |
| 831 } while (0) | |
| 832 | |
| 833 #define sowwakeup(so) do { \ | |
| 834 SOCKBUF_LOCK(&(so)->so_snd); \ | |
| 835 sowwakeup_locked(so); \ | |
| 836 } while (0) | |
| 837 | |
| 838 | |
| 839 | |
| 840 #endif /* __Userspace__ */ | |
| 841 | |
| 842 #endif /* !_SYS_SOCKETVAR_H_ */ |
