| 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 | * 3. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by the University of |
| 16 | * California, Berkeley and its contributors. |
| 17 | * 4. Neither the name of the University nor the names of its contributors |
| 18 | * may be used to endorse or promote products derived from this software |
| 19 | * without specific prior written permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | * SUCH DAMAGE. |
| 32 | * |
| 33 | * @(#)socketvar.h 8.3 (Berkeley) 2/19/95 |
| 34 | * $FreeBSD: src/sys/sys/socketvar.h,v 1.46.2.10 2003/08/24 08:24:39 hsu Exp $ |
| 35 | * $DragonFly: src/sys/sys/socketvar.h,v 1.35 2008/08/28 23:15:45 dillon Exp $ |
| 36 | */ |
| 37 | |
| 38 | #ifndef _SYS_SOCKETVAR_H_ |
| 39 | #define _SYS_SOCKETVAR_H_ |
| 40 | |
| 41 | #ifndef _SYS_TYPES_H_ |
| 42 | #include <sys/types.h> |
| 43 | #endif |
| 44 | #ifndef _SYS_QUEUE_H_ |
| 45 | #include <sys/queue.h> /* for TAILQ macros */ |
| 46 | #endif |
| 47 | #ifndef _SYS_EVENT_H_ |
| 48 | #include <sys/event.h> /* for struct kqinfo */ |
| 49 | #endif |
| 50 | #ifndef _SYS_THREAD_H_ |
| 51 | #include <sys/thread.h> /* for struct lwkt_token */ |
| 52 | #endif |
| 53 | #ifndef _SYS_SOCKBUF_H_ |
| 54 | #include <sys/sockbuf.h> |
| 55 | #endif |
| 56 | |
| 57 | #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) |
| 58 | |
| 59 | #ifndef _NET_NETMSG_H_ |
| 60 | #include <net/netmsg.h> |
| 61 | #endif |
| 62 | |
| 63 | struct accept_filter; |
| 64 | |
| 65 | /* |
| 66 | * Signaling socket buffers contain additional elements for locking |
| 67 | * and signaling conditions. These are used primarily by sockets. |
| 68 | * |
| 69 | * WARNING: See partial clearing of fields in kern/uipc_socket.c |
| 70 | * sorflush() and sowflush(). |
| 71 | */ |
| 72 | struct signalsockbuf { |
| 73 | struct sockbuf sb; |
| 74 | struct kqinfo ssb_kq; /* process selecting read/write */ |
| 75 | uint32_t ssb_flags; /* flags, see below (use atomic ops) */ |
| 76 | u_int ssb_timeo; /* timeout for read/write */ |
| 77 | long ssb_lowat; /* low water mark */ |
| 78 | u_long ssb_hiwat; /* high water mark / max actual char count */ |
| 79 | u_long ssb_mbmax; /* max chars of mbufs to use */ |
| 80 | struct lwkt_token ssb_token; /* frontend/backend serializer */ |
| 81 | }; |
| 82 | |
| 83 | #define ssb_cc sb.sb_cc /* commonly used fields */ |
| 84 | #define ssb_mb sb.sb_mb /* commonly used fields */ |
| 85 | #define ssb_mbcnt sb.sb_mbcnt /* commonly used fields */ |
| 86 | |
| 87 | #define SSB_LOCK 0x0001 /* lock on data queue */ |
| 88 | #define SSB_WANT 0x0002 /* someone is waiting to lock */ |
| 89 | #define SSB_WAIT 0x0004 /* someone is waiting for data/space */ |
| 90 | #define SSB_ASYNC 0x0010 /* ASYNC I/O, need signals */ |
| 91 | #define SSB_UPCALL 0x0020 /* someone wants an upcall */ |
| 92 | #define SSB_NOINTR 0x0040 /* operations not interruptible */ |
| 93 | /*#define SSB_AIO 0x0080*/ /* AIO operations queued */ |
| 94 | #define SSB_KNOTE 0x0100 /* kernel note attached */ |
| 95 | #define SSB_MEVENT 0x0200 /* need message event notification */ |
| 96 | #define SSB_STOP 0x0400 /* backpressure indicator */ |
| 97 | #define SSB_AUTOSIZE 0x0800 /* automatically size socket buffer */ |
| 98 | #define SSB_AUTOLOWAT 0x1000 /* automatically scale lowat */ |
| 99 | #define SSB_WAKEUP 0x2000 /* wakeup event race */ |
| 100 | |
| 101 | #define SSB_CLEAR_MASK (SSB_ASYNC | SSB_UPCALL | SSB_STOP | \ |
| 102 | SSB_AUTOSIZE | SSB_AUTOLOWAT) |
| 103 | |
| 104 | #define SSB_NOTIFY_MASK (SSB_WAIT | SSB_ASYNC | SSB_UPCALL | \ |
| 105 | SSB_KNOTE | SSB_MEVENT) |
| 106 | |
| 107 | /* |
| 108 | * Per-socket kernel structure. Contains universal send and receive queues, |
| 109 | * protocol control handle, and error information. |
| 110 | */ |
| 111 | struct socket { |
| 112 | short so_type; /* generic type, see socket.h */ |
| 113 | short so_options; /* from socket call, see socket.h */ |
| 114 | short so_linger; /* time to linger while closing */ |
| 115 | short so_state; /* internal state flags SS_*, below */ |
| 116 | void *so_pcb; /* protocol control block */ |
| 117 | struct protosw *so_proto; /* protocol handle */ |
| 118 | struct socket *so_head; /* back pointer to accept socket */ |
| 119 | lwkt_port_t so_port; /* message port */ |
| 120 | |
| 121 | /* |
| 122 | * These fields are used to manage sockets capable of accepting |
| 123 | * new connections. |
| 124 | */ |
| 125 | TAILQ_HEAD(, socket) so_incomp; /* in-progress, incomplete */ |
| 126 | TAILQ_HEAD(, socket) so_comp; /* completed but not yet accepted */ |
| 127 | TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */ |
| 128 | short so_qlen; /* so_comp count */ |
| 129 | short so_incqlen; /* so_incomp count */ |
| 130 | short so_qlimit; /* max number queued connections */ |
| 131 | |
| 132 | /* |
| 133 | * Misc socket support |
| 134 | */ |
| 135 | short so_timeo; /* connection timeout */ |
| 136 | u_short so_error; /* error affecting connection */ |
| 137 | struct sigio *so_sigio; /* information for async I/O or |
| 138 | out of band data (SIGURG) */ |
| 139 | u_long so_oobmark; /* chars to oob mark */ |
| 140 | TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */ |
| 141 | struct signalsockbuf so_rcv; |
| 142 | struct signalsockbuf so_snd; |
| 143 | |
| 144 | void (*so_upcall) (struct socket *, void *, int); |
| 145 | void *so_upcallarg; |
| 146 | struct ucred *so_cred; /* user credentials */ |
| 147 | /* NB: generation count must not be first; easiest to make it last. */ |
| 148 | void *so_emuldata; /* private data for emulators */ |
| 149 | int so_refs; /* shutdown refs */ |
| 150 | struct so_accf { |
| 151 | struct accept_filter *so_accept_filter; |
| 152 | void *so_accept_filter_arg; /* saved filter args */ |
| 153 | char *so_accept_filter_str; /* saved user args */ |
| 154 | } *so_accf; |
| 155 | |
| 156 | struct netmsg_base so_clomsg; |
| 157 | }; |
| 158 | |
| 159 | #endif |
| 160 | |
| 161 | /* |
| 162 | * Socket state bits. |
| 163 | * |
| 164 | * NOTE: The following states are interlocked with so_refs: |
| 165 | * |
| 166 | * SS_NOFDREF so_refs while not set |
| 167 | * (so_pcb) so_refs while set |
| 168 | */ |
| 169 | #define SS_NOFDREF 0x0001 /* no file table ref any more */ |
| 170 | #define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ |
| 171 | #define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ |
| 172 | #define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ |
| 173 | #define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ |
| 174 | #define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ |
| 175 | #define SS_RCVATMARK 0x0040 /* at mark on input */ |
| 176 | |
| 177 | #define SS_ASSERTINPROG 0x0100 /* sonewconn race debugging */ |
| 178 | #define SS_ASYNC 0x0200 /* async i/o notify */ |
| 179 | #define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ |
| 180 | |
| 181 | #define SS_INCOMP 0x0800 /* unaccepted, incomplete connection */ |
| 182 | #define SS_COMP 0x1000 /* unaccepted, complete connection */ |
| 183 | #define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ |
| 184 | |
| 185 | /* |
| 186 | * Externalized form of struct socket used by the sysctl(3) interface. |
| 187 | */ |
| 188 | struct xsocket { |
| 189 | size_t xso_len; /* length of this structure */ |
| 190 | struct socket *xso_so; /* makes a convenient handle sometimes */ |
| 191 | short so_type; |
| 192 | short so_options; |
| 193 | short so_linger; |
| 194 | short so_state; |
| 195 | void *so_pcb; /* another convenient handle */ |
| 196 | int xso_protocol; |
| 197 | int xso_family; |
| 198 | short so_qlen; |
| 199 | short so_incqlen; |
| 200 | short so_qlimit; |
| 201 | short so_timeo; |
| 202 | u_short so_error; |
| 203 | pid_t so_pgid; |
| 204 | u_long so_oobmark; |
| 205 | struct xsockbuf { |
| 206 | u_long sb_cc; |
| 207 | u_long sb_hiwat; |
| 208 | u_long sb_mbcnt; |
| 209 | u_long sb_mbmax; |
| 210 | long sb_lowat; |
| 211 | u_int sb_timeo; |
| 212 | short sb_flags; |
| 213 | } so_rcv, so_snd; |
| 214 | uid_t so_uid; /* XXX */ |
| 215 | }; |
| 216 | |
| 217 | /* |
| 218 | * Macros for sockets and socket buffering. |
| 219 | */ |
| 220 | |
| 221 | #define sosendallatonce(so) \ |
| 222 | ((so)->so_proto->pr_flags & PR_ATOMIC) |
| 223 | |
| 224 | /* can we read something from so? */ |
| 225 | #define soreadable(so) \ |
| 226 | ((so)->so_rcv.ssb_cc >= (so)->so_rcv.ssb_lowat || \ |
| 227 | ((so)->so_state & SS_CANTRCVMORE) || \ |
| 228 | !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) |
| 229 | |
| 230 | /* can we write something to so? */ |
| 231 | #define sowriteable(so) \ |
| 232 | ((ssb_space(&(so)->so_snd) >= (so)->so_snd.ssb_lowat && \ |
| 233 | (((so)->so_state&SS_ISCONNECTED) || \ |
| 234 | ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ |
| 235 | ((so)->so_state & SS_CANTSENDMORE) || \ |
| 236 | (so)->so_error) |
| 237 | |
| 238 | /* |
| 239 | * Do we need to notify the other side when I/O is possible? |
| 240 | * |
| 241 | * NOTE: Interlock for ssb_wait/wakeup. The protocol side will set |
| 242 | * SSB_WAKEUP asynchronously and this can race, so if it isn't |
| 243 | * set we have to go through the full-on notification check. |
| 244 | * If it is set but no waiting ever takes place it simply |
| 245 | * remains set. |
| 246 | */ |
| 247 | #define ssb_notify(ssb) \ |
| 248 | (((ssb)->ssb_flags & SSB_NOTIFY_MASK) || \ |
| 249 | ((ssb)->ssb_flags & SSB_WAKEUP) == 0) |
| 250 | |
| 251 | /* do we have to send all at once on a socket? */ |
| 252 | |
| 253 | #ifdef _KERNEL |
| 254 | |
| 255 | /* |
| 256 | * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? |
| 257 | * This is problematical if the fields are unsigned, as the space might |
| 258 | * still be negative (cc > hiwat or mbcnt > mbmax). Should detect |
| 259 | * overflow and return 0. |
| 260 | * |
| 261 | * SSB_STOP ignores cc/hiwat and returns 0. This is used by unix domain |
| 262 | * stream sockets to signal backpressure. |
| 263 | */ |
| 264 | static __inline |
| 265 | long |
| 266 | ssb_space(struct signalsockbuf *ssb) |
| 267 | { |
| 268 | long bleft; |
| 269 | long mleft; |
| 270 | |
| 271 | if (ssb->ssb_flags & SSB_STOP) |
| 272 | return(0); |
| 273 | bleft = ssb->ssb_hiwat - ssb->ssb_cc; |
| 274 | mleft = ssb->ssb_mbmax - ssb->ssb_mbcnt; |
| 275 | return((bleft < mleft) ? bleft : mleft); |
| 276 | } |
| 277 | |
| 278 | #endif |
| 279 | |
| 280 | #define ssb_append(ssb, m) \ |
| 281 | sbappend(&(ssb)->sb, m) |
| 282 | |
| 283 | #define ssb_appendstream(ssb, m) \ |
| 284 | sbappendstream(&(ssb)->sb, m) |
| 285 | |
| 286 | #define ssb_appendrecord(ssb, m) \ |
| 287 | sbappendrecord(&(ssb)->sb, m) |
| 288 | |
| 289 | #define ssb_appendaddr(ssb, src, m, control) \ |
| 290 | ((ssb_space(ssb) <= 0) ? 0 : sbappendaddr(&(ssb)->sb, src, m, control)) |
| 291 | |
| 292 | #define ssb_appendcontrol(ssb, m, control) \ |
| 293 | ((ssb_space(ssb) <= 0) ? 0 : sbappendcontrol(&(ssb)->sb, m, control)) |
| 294 | |
| 295 | #define ssb_insert_knote(ssb, kn) { \ |
| 296 | knote_insert(&(ssb)->ssb_kq.ki_note, kn); \ |
| 297 | atomic_set_int(&(ssb)->ssb_flags, SSB_KNOTE); \ |
| 298 | } |
| 299 | |
| 300 | #define ssb_remove_knote(ssb, kn) { \ |
| 301 | knote_remove(&(ssb)->ssb_kq.ki_note, kn); \ |
| 302 | if (SLIST_EMPTY(&(ssb)->ssb_kq.ki_note)) \ |
| 303 | atomic_clear_int(&(ssb)->ssb_flags, SSB_KNOTE); \ |
| 304 | } |
| 305 | |
| 306 | #define sorwakeup(so) \ |
| 307 | do { \ |
| 308 | if (ssb_notify(&(so)->so_rcv)) \ |
| 309 | sowakeup((so), &(so)->so_rcv); \ |
| 310 | } while (0) |
| 311 | |
| 312 | #define sowwakeup(so) \ |
| 313 | do { \ |
| 314 | if (ssb_notify(&(so)->so_snd)) \ |
| 315 | sowakeup((so), &(so)->so_snd); \ |
| 316 | } while (0) |
| 317 | |
| 318 | #ifdef _KERNEL |
| 319 | |
| 320 | /* |
| 321 | * Argument structure for sosetopt et seq. This is in the KERNEL |
| 322 | * section because it will never be visible to user code. |
| 323 | */ |
| 324 | enum sopt_dir { SOPT_GET, SOPT_SET }; |
| 325 | struct sockopt { |
| 326 | enum sopt_dir sopt_dir; /* is this a get or a set? */ |
| 327 | int sopt_level; /* second arg of [gs]etsockopt */ |
| 328 | int sopt_name; /* third arg of [gs]etsockopt */ |
| 329 | void *sopt_val; /* fourth arg of [gs]etsockopt */ |
| 330 | size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ |
| 331 | struct thread *sopt_td; /* calling thread or null if kernel */ |
| 332 | }; |
| 333 | |
| 334 | struct accept_filter { |
| 335 | char accf_name[16]; |
| 336 | void (*accf_callback) |
| 337 | (struct socket *so, void *arg, int waitflag); |
| 338 | void * (*accf_create) |
| 339 | (struct socket *so, char *arg); |
| 340 | void (*accf_destroy) |
| 341 | (struct socket *so); |
| 342 | SLIST_ENTRY(accept_filter) accf_next; /* next on the list */ |
| 343 | }; |
| 344 | |
| 345 | #ifdef MALLOC_DECLARE |
| 346 | MALLOC_DECLARE(M_PCB); |
| 347 | MALLOC_DECLARE(M_SONAME); |
| 348 | MALLOC_DECLARE(M_ACCF); |
| 349 | #endif |
| 350 | |
| 351 | extern int maxsockets; |
| 352 | extern u_long sb_max; /* nominal limit */ |
| 353 | extern u_long sb_max_adj; /* actual limit used by sbreserve() */ |
| 354 | |
| 355 | struct file; |
| 356 | struct filedesc; |
| 357 | struct mbuf; |
| 358 | struct rlimit; |
| 359 | struct sockaddr; |
| 360 | struct stat; |
| 361 | struct ucred; |
| 362 | struct uio; |
| 363 | struct knote; |
| 364 | struct sysmsg; |
| 365 | |
| 366 | /* |
| 367 | * File operations on sockets. |
| 368 | */ |
| 369 | int soo_read (struct file *fp, struct uio *uio, struct ucred *cred, |
| 370 | int flags); |
| 371 | int soo_write (struct file *fp, struct uio *uio, struct ucred *cred, |
| 372 | int flags); |
| 373 | int soo_close (struct file *fp); |
| 374 | int soo_shutdown (struct file *fp, int how); |
| 375 | int soo_ioctl (struct file *fp, u_long cmd, caddr_t data, |
| 376 | struct ucred *cred, struct sysmsg *msg); |
| 377 | int soo_stat (struct file *fp, struct stat *ub, struct ucred *cred); |
| 378 | int sokqfilter (struct file *fp, struct knote *kn); |
| 379 | |
| 380 | /* |
| 381 | * From uipc_socket and friends |
| 382 | */ |
| 383 | struct sockaddr *dup_sockaddr (const struct sockaddr *sa); |
| 384 | int getsockaddr (struct sockaddr **namp, caddr_t uaddr, size_t len); |
| 385 | |
| 386 | void ssb_release (struct signalsockbuf *ssb, struct socket *so); |
| 387 | int ssb_reserve (struct signalsockbuf *ssb, u_long cc, struct socket *so, |
| 388 | struct rlimit *rl); |
| 389 | void ssbtoxsockbuf (struct signalsockbuf *sb, struct xsockbuf *xsb); |
| 390 | int ssb_wait (struct signalsockbuf *sb); |
| 391 | int _ssb_lock (struct signalsockbuf *sb); |
| 392 | |
| 393 | void soabort (struct socket *so); |
| 394 | void soaborta (struct socket *so); |
| 395 | void soabort_oncpu (struct socket *so); |
| 396 | int soaccept (struct socket *so, struct sockaddr **nam); |
| 397 | struct socket *soalloc (int waitok); |
| 398 | int sobind (struct socket *so, struct sockaddr *nam, struct thread *td); |
| 399 | void socantrcvmore (struct socket *so); |
| 400 | void socantsendmore (struct socket *so); |
| 401 | int socket_wait (struct socket *so, struct timespec *ts, int *res); |
| 402 | int soclose (struct socket *so, int fflags); |
| 403 | int soconnect (struct socket *so, struct sockaddr *nam, struct thread *td); |
| 404 | int soconnect2 (struct socket *so1, struct socket *so2); |
| 405 | int socreate (int dom, struct socket **aso, int type, int proto, |
| 406 | struct thread *td); |
| 407 | int sodisconnect (struct socket *so); |
| 408 | void sofree (struct socket *so); |
| 409 | int sogetopt (struct socket *so, struct sockopt *sopt); |
| 410 | void sohasoutofband (struct socket *so); |
| 411 | void soisconnected (struct socket *so); |
| 412 | void soisconnecting (struct socket *so); |
| 413 | void soisdisconnected (struct socket *so); |
| 414 | void soisdisconnecting (struct socket *so); |
| 415 | void soisreconnected (struct socket *so); |
| 416 | void soisreconnecting (struct socket *so); |
| 417 | void sosetport (struct socket *so, struct lwkt_port *port); |
| 418 | int solisten (struct socket *so, int backlog, struct thread *td); |
| 419 | struct socket *sonewconn (struct socket *head, int connstatus); |
| 420 | int sooptcopyin (struct sockopt *sopt, void *buf, size_t len, |
| 421 | size_t minlen); |
| 422 | int soopt_to_kbuf (struct sockopt *sopt, void *buf, size_t len, |
| 423 | size_t minlen); |
| 424 | int sooptcopyout (struct sockopt *sopt, const void *buf, size_t len); |
| 425 | void soopt_from_kbuf (struct sockopt *sopt, const void *buf, size_t len); |
| 426 | |
| 427 | /* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ |
| 428 | int soopt_getm (struct sockopt *sopt, struct mbuf **mp); |
| 429 | int soopt_mcopyin (struct sockopt *sopt, struct mbuf *m); |
| 430 | void soopt_to_mbuf (struct sockopt *sopt, struct mbuf *m); |
| 431 | int soopt_mcopyout (struct sockopt *sopt, struct mbuf *m); |
| 432 | int soopt_from_mbuf (struct sockopt *sopt, struct mbuf *m); |
| 433 | |
| 434 | int soreceive (struct socket *so, struct sockaddr **paddr, |
| 435 | struct uio *uio, struct sockbuf *sio, |
| 436 | struct mbuf **controlp, int *flagsp); |
| 437 | int soreserve (struct socket *so, u_long sndcc, u_long rcvcc, |
| 438 | struct rlimit *rl); |
| 439 | void sorflush (struct socket *so); |
| 440 | int sosend (struct socket *so, struct sockaddr *addr, struct uio *uio, |
| 441 | struct mbuf *top, struct mbuf *control, int flags, |
| 442 | struct thread *td); |
| 443 | int sosendudp (struct socket *so, struct sockaddr *addr, struct uio *uio, |
| 444 | struct mbuf *top, struct mbuf *control, int flags, |
| 445 | struct thread *td); |
| 446 | int sosendtcp (struct socket *so, struct sockaddr *addr, struct uio *uio, |
| 447 | struct mbuf *top, struct mbuf *control, int flags, |
| 448 | struct thread *td); |
| 449 | int sosetopt (struct socket *so, struct sockopt *sopt); |
| 450 | int soshutdown (struct socket *so, int how); |
| 451 | void sotoxsocket (struct socket *so, struct xsocket *xso); |
| 452 | void sowakeup (struct socket *so, struct signalsockbuf *sb); |
| 453 | |
| 454 | /* accept filter functions */ |
| 455 | int accept_filt_add (struct accept_filter *filt); |
| 456 | int accept_filt_del (char *name); |
| 457 | struct accept_filter * accept_filt_get (char *name); |
| 458 | #ifdef ACCEPT_FILTER_MOD |
| 459 | int accept_filt_generic_mod_event (module_t mod, int event, void *data); |
| 460 | SYSCTL_DECL(_net_inet_accf); |
| 461 | #endif /* ACCEPT_FILTER_MOD */ |
| 462 | |
| 463 | #endif /* _KERNEL */ |
| 464 | |
| 465 | #endif /* !_SYS_SOCKETVAR_H_ */ |