socketvar.h revision 61837
1191450Smarcel/*- 2191450Smarcel * Copyright (c) 1982, 1986, 1990, 1993 3191450Smarcel * The Regents of the University of California. All rights reserved. 4191450Smarcel * 5191450Smarcel * Redistribution and use in source and binary forms, with or without 6191450Smarcel * modification, are permitted provided that the following conditions 7191450Smarcel * are met: 8191450Smarcel * 1. Redistributions of source code must retain the above copyright 9191450Smarcel * notice, this list of conditions and the following disclaimer. 10191450Smarcel * 2. Redistributions in binary form must reproduce the above copyright 11191450Smarcel * notice, this list of conditions and the following disclaimer in the 12191450Smarcel * documentation and/or other materials provided with the distribution. 13191450Smarcel * 3. All advertising materials mentioning features or use of this software 14191450Smarcel * must display the following acknowledgement: 15191450Smarcel * This product includes software developed by the University of 16191450Smarcel * California, Berkeley and its contributors. 17191450Smarcel * 4. Neither the name of the University nor the names of its contributors 18191450Smarcel * may be used to endorse or promote products derived from this software 19191450Smarcel * without specific prior written permission. 20191450Smarcel * 21191450Smarcel * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22191450Smarcel * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23191450Smarcel * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24191450Smarcel * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25191450Smarcel * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26191450Smarcel * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27191450Smarcel * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28191450Smarcel * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29191450Smarcel * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30191450Smarcel * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31224552Smarcel * SUCH DAMAGE. 32224552Smarcel * 33191450Smarcel * @(#)socketvar.h 8.3 (Berkeley) 2/19/95 34191450Smarcel * $FreeBSD: head/sys/sys/socketvar.h 61837 2000-06-20 01:09:23Z alfred $ 35191450Smarcel */ 36191450Smarcel 37191450Smarcel#ifndef _SYS_SOCKETVAR_H_ 38191450Smarcel#define _SYS_SOCKETVAR_H_ 39191450Smarcel 40191450Smarcel#include <sys/queue.h> /* for TAILQ macros */ 41209908Sraj#include <sys/select.h> /* for struct selinfo */ 42191450Smarcel 43191450Smarcel/* 44191450Smarcel * Kernel structure per socket. 45191450Smarcel * Contains send and receive buffer queues, 46191450Smarcel * handle on protocol and pointer to protocol 47191450Smarcel * private data and error information. 48191450Smarcel */ 49191450Smarceltypedef u_quad_t so_gen_t; 50191450Smarcel 51191450Smarcelstruct accept_filter; 52191450Smarcel 53191450Smarcelstruct socket { 54191450Smarcel struct vm_zone *so_zone; /* zone we were allocated from */ 55191450Smarcel short so_type; /* generic type, see socket.h */ 56191450Smarcel short so_options; /* from socket call, see socket.h */ 57191450Smarcel short so_linger; /* time to linger while closing */ 58191450Smarcel short so_state; /* internal state flags SS_*, below */ 59191450Smarcel caddr_t so_pcb; /* protocol control block */ 60191450Smarcel struct protosw *so_proto; /* protocol handle */ 61191450Smarcel/* 62191450Smarcel * Variables for connection queuing. 63191450Smarcel * Socket where accepts occur is so_head in all subsidiary sockets. 64191450Smarcel * If so_head is 0, socket is not related to an accept. 65191450Smarcel * For head socket so_q0 queues partially completed connections, 66191450Smarcel * while so_q is a queue of connections ready to be accepted. 67191450Smarcel * If a connection is aborted and it has so_head set, then 68191450Smarcel * it has to be pulled out of either so_q0 or so_q. 69191450Smarcel * We allow connections to queue up based on current queue lengths 70191450Smarcel * and limit on number of queued connections for this socket. 71191450Smarcel */ 72191450Smarcel struct socket *so_head; /* back pointer to accept socket */ 73191450Smarcel TAILQ_HEAD(, socket) so_incomp; /* queue of partial unaccepted connections */ 74191450Smarcel TAILQ_HEAD(, socket) so_comp; /* queue of complete unaccepted connections */ 75191450Smarcel TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */ 76191450Smarcel short so_qlen; /* number of unaccepted connections */ 77191450Smarcel short so_incqlen; /* number of unaccepted incomplete 78191450Smarcel connections */ 79191450Smarcel short so_qlimit; /* max number queued connections */ 80191450Smarcel short so_timeo; /* connection timeout */ 81191450Smarcel u_short so_error; /* error affecting connection */ 82257059Snwhitehorn struct sigio *so_sigio; /* information for async I/O or 83257059Snwhitehorn out of band data (SIGURG) */ 84257059Snwhitehorn u_long so_oobmark; /* chars to oob mark */ 85191450Smarcel TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */ 86191450Smarcel/* 87191450Smarcel * Variables for socket buffering. 88191450Smarcel */ 89191450Smarcel struct sockbuf { 90191450Smarcel u_long sb_cc; /* actual chars in buffer */ 91191450Smarcel u_long sb_hiwat; /* max actual char count */ 92191450Smarcel u_long sb_mbcnt; /* chars of mbufs used */ 93191450Smarcel u_long sb_mbmax; /* max chars of mbufs to use */ 94191450Smarcel long sb_lowat; /* low water mark */ 95191450Smarcel struct mbuf *sb_mb; /* the mbuf chain */ 96191450Smarcel struct selinfo sb_sel; /* process selecting read/write */ 97191450Smarcel short sb_flags; /* flags, see below */ 98191450Smarcel short sb_timeo; /* timeout for read/write */ 99191450Smarcel } so_rcv, so_snd; 100257059Snwhitehorn#define SB_MAX (256*1024) /* default for max chars in sockbuf */ 101257059Snwhitehorn#define SB_LOCK 0x01 /* lock on data queue */ 102191450Smarcel#define SB_WANT 0x02 /* someone is waiting to lock */ 103191450Smarcel#define SB_WAIT 0x04 /* someone is waiting for data/space */ 104191450Smarcel#define SB_SEL 0x08 /* someone is selecting */ 105191450Smarcel#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 106191450Smarcel#define SB_UPCALL 0x20 /* someone wants an upcall */ 107191450Smarcel#define SB_NOINTR 0x40 /* operations not interruptible */ 108191450Smarcel#define SB_AIO 0x80 /* AIO operations queued */ 109191450Smarcel#define SB_KNOTE 0x100 /* kernel note attached */ 110191450Smarcel 111191450Smarcel void (*so_upcall) __P((struct socket *, void *, int)); 112191450Smarcel void *so_upcallarg; 113191450Smarcel struct ucred *so_cred; /* user credentials */ 114191450Smarcel /* NB: generation count must not be first; easiest to make it last. */ 115191450Smarcel so_gen_t so_gencnt; /* generation count */ 116191450Smarcel void *so_emuldata; /* private data for emulators */ 117191450Smarcel struct so_accf { 118191450Smarcel struct accept_filter *so_accept_filter; 119191450Smarcel void *so_accept_filter_arg; /* saved filter args */ 120191450Smarcel char *so_accept_filter_str; /* saved user args */ 121191450Smarcel } *so_accf; 122191450Smarcel}; 123191450Smarcel 124191450Smarcel/* 125191450Smarcel * Socket state bits. 126191450Smarcel */ 127191450Smarcel#define SS_NOFDREF 0x0001 /* no file table ref any more */ 128191450Smarcel#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ 129191450Smarcel#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ 130191450Smarcel#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ 131191450Smarcel#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 132191450Smarcel#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 133191450Smarcel#define SS_RCVATMARK 0x0040 /* at mark on input */ 134191450Smarcel 135191450Smarcel#define SS_NBIO 0x0100 /* non-blocking ops */ 136191450Smarcel#define SS_ASYNC 0x0200 /* async i/o notify */ 137191450Smarcel#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ 138191450Smarcel 139191450Smarcel#define SS_INCOMP 0x0800 /* unaccepted, incomplete connection */ 140191450Smarcel#define SS_COMP 0x1000 /* unaccepted, complete connection */ 141191450Smarcel#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ 142209493Smarcel 143191450Smarcel/* 144191450Smarcel * Externalized form of struct socket used by the sysctl(3) interface. 145191450Smarcel */ 146191450Smarcelstruct xsocket { 147191450Smarcel size_t xso_len; /* length of this structure */ 148191450Smarcel struct socket *xso_so; /* makes a convenient handle sometimes */ 149191450Smarcel short so_type; 150191450Smarcel short so_options; 151191450Smarcel short so_linger; 152191450Smarcel short so_state; 153191450Smarcel caddr_t so_pcb; /* another convenient handle */ 154191450Smarcel int xso_protocol; 155191450Smarcel int xso_family; 156191450Smarcel short so_qlen; 157191450Smarcel short so_incqlen; 158191450Smarcel short so_qlimit; 159218075Smarcel short so_timeo; 160191450Smarcel u_short so_error; 161191450Smarcel pid_t so_pgid; 162191450Smarcel u_long so_oobmark; 163191450Smarcel struct xsockbuf { 164191450Smarcel u_long sb_cc; 165191450Smarcel u_long sb_hiwat; 166191450Smarcel u_long sb_mbcnt; 167191450Smarcel u_long sb_mbmax; 168191450Smarcel long sb_lowat; 169191450Smarcel short sb_flags; 170191450Smarcel short sb_timeo; 171191450Smarcel } so_rcv, so_snd; 172191450Smarcel uid_t so_uid; /* XXX */ 173191450Smarcel}; 174191450Smarcel 175191450Smarcel/* 176191450Smarcel * Macros for sockets and socket buffering. 177191450Smarcel */ 178191450Smarcel 179191450Smarcel/* 180191450Smarcel * Do we need to notify the other side when I/O is possible? 181191450Smarcel */ 182191450Smarcel#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ 183191450Smarcel SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) 184191450Smarcel 185191450Smarcel/* 186191450Smarcel * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 187191450Smarcel * This is problematical if the fields are unsigned, as the space might 188191450Smarcel * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 189191450Smarcel * overflow and return 0. Should use "lmin" but it doesn't exist now. 190191450Smarcel */ 191191450Smarcel#define sbspace(sb) \ 192191450Smarcel ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ 193191450Smarcel (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) 194191450Smarcel 195191450Smarcel/* do we have to send all at once on a socket? */ 196191450Smarcel#define sosendallatonce(so) \ 197191450Smarcel ((so)->so_proto->pr_flags & PR_ATOMIC) 198191450Smarcel 199191450Smarcel/* can we read something from so? */ 200191450Smarcel#define soreadable(so) \ 201191450Smarcel ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ 202191450Smarcel ((so)->so_state & SS_CANTRCVMORE) || \ 203191450Smarcel (so)->so_comp.tqh_first || (so)->so_error) 204191450Smarcel 205191450Smarcel/* can we write something to so? */ 206191450Smarcel#define sowriteable(so) \ 207191450Smarcel ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ 208191450Smarcel (((so)->so_state&SS_ISCONNECTED) || \ 209191450Smarcel ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ 210191450Smarcel ((so)->so_state & SS_CANTSENDMORE) || \ 211191450Smarcel (so)->so_error) 212191450Smarcel 213191450Smarcel/* adjust counters in sb reflecting allocation of m */ 214191450Smarcel#define sballoc(sb, m) { \ 215191450Smarcel (sb)->sb_cc += (m)->m_len; \ 216191450Smarcel (sb)->sb_mbcnt += MSIZE; \ 217191450Smarcel if ((m)->m_flags & M_EXT) \ 218193144Smarcel (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ 219209493Smarcel} 220191450Smarcel 221191450Smarcel/* adjust counters in sb reflecting freeing of m */ 222191450Smarcel#define sbfree(sb, m) { \ 223191450Smarcel (sb)->sb_cc -= (m)->m_len; \ 224191450Smarcel (sb)->sb_mbcnt -= MSIZE; \ 225191450Smarcel if ((m)->m_flags & M_EXT) \ 226218075Smarcel (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ 227191450Smarcel} 228191450Smarcel 229191450Smarcel/* 230191450Smarcel * Set lock on sockbuf sb; sleep if lock is already held. 231191450Smarcel * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. 232191450Smarcel * Returns error without lock if sleep is interrupted. 233191450Smarcel */ 234191450Smarcel#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ 235191450Smarcel (((wf) == M_WAITOK) ? sb_lock(sb) : EWOULDBLOCK) : \ 236191450Smarcel ((sb)->sb_flags |= SB_LOCK), 0) 237191450Smarcel 238191450Smarcel/* release lock on sockbuf sb */ 239191450Smarcel#define sbunlock(sb) { \ 240191450Smarcel (sb)->sb_flags &= ~SB_LOCK; \ 241191450Smarcel if ((sb)->sb_flags & SB_WANT) { \ 242191450Smarcel (sb)->sb_flags &= ~SB_WANT; \ 243191450Smarcel wakeup((caddr_t)&(sb)->sb_flags); \ 244191450Smarcel } \ 245191450Smarcel} 246191450Smarcel 247191450Smarcel#define sorwakeup(so) do { \ 248191450Smarcel if (sb_notify(&(so)->so_rcv)) \ 249191450Smarcel sowakeup((so), &(so)->so_rcv); \ 250191450Smarcel } while (0) 251191450Smarcel 252191450Smarcel#define sowwakeup(so) do { \ 253191450Smarcel if (sb_notify(&(so)->so_snd)) \ 254191450Smarcel sowakeup((so), &(so)->so_snd); \ 255191450Smarcel } while (0) 256191450Smarcel 257191450Smarcel#ifdef _KERNEL 258191450Smarcel 259191450Smarcel/* 260191450Smarcel * Argument structure for sosetopt et seq. This is in the KERNEL 261191450Smarcel * section because it will never be visible to user code. 262191450Smarcel */ 263191450Smarcelenum sopt_dir { SOPT_GET, SOPT_SET }; 264191450Smarcelstruct sockopt { 265191450Smarcel enum sopt_dir sopt_dir; /* is this a get or a set? */ 266191450Smarcel int sopt_level; /* second arg of [gs]etsockopt */ 267191450Smarcel int sopt_name; /* third arg of [gs]etsockopt */ 268191450Smarcel void *sopt_val; /* fourth arg of [gs]etsockopt */ 269191450Smarcel size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ 270191450Smarcel struct proc *sopt_p; /* calling process or null if kernel */ 271191450Smarcel}; 272191450Smarcel 273191450Smarcelstruct sf_buf { 274191450Smarcel SLIST_ENTRY(sf_buf) free_list; /* list of free buffer slots */ 275191450Smarcel int refcnt; /* reference count */ 276191450Smarcel struct vm_page *m; /* currently mapped page */ 277191450Smarcel vm_offset_t kva; /* va of mapping */ 278191450Smarcel}; 279191450Smarcel 280191450Smarcelstruct accept_filter { 281191450Smarcel char accf_name[16]; 282191450Smarcel void (*accf_callback) 283191450Smarcel __P((struct socket *so, void *arg, int waitflag)); 284191450Smarcel void * (*accf_create) 285191450Smarcel __P((struct socket *so, char *arg)); 286191450Smarcel void (*accf_destroy) 287191450Smarcel __P((struct socket *so)); 288191450Smarcel SLIST_ENTRY(accept_filter) accf_next; /* next on the list */ 289191450Smarcel}; 290191450Smarcel 291191450Smarcel#ifdef MALLOC_DECLARE 292191450SmarcelMALLOC_DECLARE(M_PCB); 293191450SmarcelMALLOC_DECLARE(M_SONAME); 294191450SmarcelMALLOC_DECLARE(M_ACCF); 295191450Smarcel#endif 296191450Smarcel 297191450Smarcelextern int maxsockets; 298191450Smarcelextern u_long sb_max; 299191450Smarcelextern struct vm_zone *socket_zone; 300191450Smarcelextern so_gen_t so_gencnt; 301191450Smarcel 302191450Smarcelstruct file; 303191450Smarcelstruct filedesc; 304191450Smarcelstruct mbuf; 305191450Smarcelstruct sockaddr; 306191450Smarcelstruct stat; 307191450Smarcelstruct ucred; 308191450Smarcelstruct uio; 309191450Smarcel 310191450Smarcel/* 311191450Smarcel * File operations on sockets. 312191450Smarcel */ 313191450Smarcelint soo_read __P((struct file *fp, struct uio *uio, struct ucred *cred, 314191450Smarcel int flags, struct proc *p)); 315191450Smarcelint soo_write __P((struct file *fp, struct uio *uio, struct ucred *cred, 316191450Smarcel int flags, struct proc *p)); 317191450Smarcelint soo_close __P((struct file *fp, struct proc *p)); 318191450Smarcelint soo_ioctl __P((struct file *fp, u_long cmd, caddr_t data, 319191450Smarcel struct proc *p)); 320191450Smarcelint soo_poll __P((struct file *fp, int events, struct ucred *cred, 321191450Smarcel struct proc *p)); 322191450Smarcelint soo_stat __P((struct file *fp, struct stat *ub, struct proc *p)); 323191450Smarcel 324191450Smarcel/* 325191450Smarcel * From uipc_socket and friends 326191450Smarcel */ 327191450Smarcelstruct sockaddr *dup_sockaddr __P((struct sockaddr *sa, int canwait)); 328191450Smarcelint getsock __P((struct filedesc *fdp, int fdes, struct file **fpp)); 329191450Smarcelint sockargs __P((struct mbuf **mp, caddr_t buf, int buflen, int type)); 330191450Smarcelint getsockaddr __P((struct sockaddr **namp, caddr_t uaddr, size_t len)); 331191450Smarcelvoid sbappend __P((struct sockbuf *sb, struct mbuf *m)); 332191450Smarcelint sbappendaddr __P((struct sockbuf *sb, struct sockaddr *asa, 333257059Snwhitehorn struct mbuf *m0, struct mbuf *control)); 334257059Snwhitehornint sbappendcontrol __P((struct sockbuf *sb, struct mbuf *m0, 335257059Snwhitehorn struct mbuf *control)); 336257059Snwhitehornvoid sbappendrecord __P((struct sockbuf *sb, struct mbuf *m0)); 337257059Snwhitehornvoid sbcheck __P((struct sockbuf *sb)); 338257059Snwhitehornvoid sbcompress __P((struct sockbuf *sb, struct mbuf *m, struct mbuf *n)); 339257059Snwhitehornstruct mbuf * 340257059Snwhitehorn sbcreatecontrol __P((caddr_t p, int size, int type, int level)); 341257059Snwhitehornvoid sbdrop __P((struct sockbuf *sb, int len)); 342257059Snwhitehornvoid sbdroprecord __P((struct sockbuf *sb)); 343257059Snwhitehornvoid sbflush __P((struct sockbuf *sb)); 344257059Snwhitehornvoid sbinsertoob __P((struct sockbuf *sb, struct mbuf *m0)); 345257059Snwhitehornvoid sbrelease __P((struct sockbuf *sb, struct socket *so)); 346257059Snwhitehornint sbreserve __P((struct sockbuf *sb, u_long cc, struct socket *so, 347257059Snwhitehorn struct proc *p)); 348257059Snwhitehornvoid sbtoxsockbuf __P((struct sockbuf *sb, struct xsockbuf *xsb)); 349257059Snwhitehornint sbwait __P((struct sockbuf *sb)); 350257059Snwhitehornint sb_lock __P((struct sockbuf *sb)); 351257059Snwhitehornint soabort __P((struct socket *so)); 352257059Snwhitehornint soaccept __P((struct socket *so, struct sockaddr **nam)); 353257059Snwhitehornstruct socket *soalloc __P((int waitok)); 354257059Snwhitehornint sobind __P((struct socket *so, struct sockaddr *nam, struct proc *p)); 355257059Snwhitehornvoid socantrcvmore __P((struct socket *so)); 356257059Snwhitehornvoid socantsendmore __P((struct socket *so)); 357257059Snwhitehornint soclose __P((struct socket *so)); 358257059Snwhitehornint soconnect __P((struct socket *so, struct sockaddr *nam, struct proc *p)); 359257059Snwhitehornint soconnect2 __P((struct socket *so1, struct socket *so2)); 360257059Snwhitehornint socreate __P((int dom, struct socket **aso, int type, int proto, 361257059Snwhitehorn struct proc *p)); 362257059Snwhitehornvoid sodealloc __P((struct socket *so)); 363257059Snwhitehornint sodisconnect __P((struct socket *so)); 364257059Snwhitehornvoid sofree __P((struct socket *so)); 365int sogetopt __P((struct socket *so, struct sockopt *sopt)); 366void sohasoutofband __P((struct socket *so)); 367void soisconnected __P((struct socket *so)); 368void soisconnecting __P((struct socket *so)); 369void soisdisconnected __P((struct socket *so)); 370void soisdisconnecting __P((struct socket *so)); 371int solisten __P((struct socket *so, int backlog, struct proc *p)); 372struct socket * 373 sodropablereq __P((struct socket *head)); 374struct socket * 375 sonewconn __P((struct socket *head, int connstatus)); 376struct socket * 377 sonewconn3 __P((struct socket *head, int connstatus, struct proc *p)); 378int sooptcopyin __P((struct sockopt *sopt, void *buf, size_t len, 379 size_t minlen)); 380int sooptcopyout __P((struct sockopt *sopt, void *buf, size_t len)); 381 382/* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ 383int soopt_getm __P((struct sockopt *sopt, struct mbuf **mp)); 384int soopt_mcopyin __P((struct sockopt *sopt, struct mbuf *m)); 385int soopt_mcopyout __P((struct sockopt *sopt, struct mbuf *m)); 386 387int sopoll __P((struct socket *so, int events, struct ucred *cred, 388 struct proc *p)); 389int soreceive __P((struct socket *so, struct sockaddr **paddr, 390 struct uio *uio, struct mbuf **mp0, 391 struct mbuf **controlp, int *flagsp)); 392int soreserve __P((struct socket *so, u_long sndcc, u_long rcvcc)); 393void sorflush __P((struct socket *so)); 394int sosend __P((struct socket *so, struct sockaddr *addr, struct uio *uio, 395 struct mbuf *top, struct mbuf *control, int flags, 396 struct proc *p)); 397int sosetopt __P((struct socket *so, struct sockopt *sopt)); 398int soshutdown __P((struct socket *so, int how)); 399void sotoxsocket __P((struct socket *so, struct xsocket *xso)); 400void sowakeup __P((struct socket *so, struct sockbuf *sb)); 401 402/* accept filter functions */ 403int accept_filt_add __P((struct accept_filter *filt)); 404int accept_filt_del __P((char *name)); 405struct accept_filter * accept_filt_get __P((char *name)); 406#ifdef ACCEPT_FILTER_MOD 407int accept_filt_generic_mod_event __P((module_t mod, int event, void *data)); 408#endif /* ACCEPT_FILTER_MOD */ 409 410#endif /* _KERNEL */ 411 412#endif /* !_SYS_SOCKETVAR_H_ */ 413