socketvar.h revision 92719
11541Srgrimes/*- 21541Srgrimes * Copyright (c) 1982, 1986, 1990, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions 71541Srgrimes * are met: 81541Srgrimes * 1. Redistributions of source code must retain the above copyright 91541Srgrimes * notice, this list of conditions and the following disclaimer. 101541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111541Srgrimes * notice, this list of conditions and the following disclaimer in the 121541Srgrimes * documentation and/or other materials provided with the distribution. 131541Srgrimes * 3. All advertising materials mentioning features or use of this software 141541Srgrimes * must display the following acknowledgement: 151541Srgrimes * This product includes software developed by the University of 161541Srgrimes * California, Berkeley and its contributors. 171541Srgrimes * 4. Neither the name of the University nor the names of its contributors 181541Srgrimes * may be used to endorse or promote products derived from this software 191541Srgrimes * without specific prior written permission. 201541Srgrimes * 211541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311541Srgrimes * SUCH DAMAGE. 321541Srgrimes * 3314505Shsu * @(#)socketvar.h 8.3 (Berkeley) 2/19/95 3450477Speter * $FreeBSD: head/sys/sys/socketvar.h 92719 2002-03-19 20:18:42Z alfred $ 351541Srgrimes */ 361541Srgrimes 372165Spaul#ifndef _SYS_SOCKETVAR_H_ 382165Spaul#define _SYS_SOCKETVAR_H_ 392165Spaul 4015492Sbde#include <sys/queue.h> /* for TAILQ macros */ 4186487Sdillon#include <sys/sx.h> /* SX locks */ 4270834Swollman#include <sys/selinfo.h> /* for struct selinfo */ 4392654Sjeff#include <vm/vm_zone.h> 441541Srgrimes 451541Srgrimes/* 461541Srgrimes * Kernel structure per socket. 471541Srgrimes * Contains send and receive buffer queues, 481541Srgrimes * handle on protocol and pointer to protocol 491541Srgrimes * private data and error information. 501541Srgrimes */ 5136079Swollmantypedef u_quad_t so_gen_t; 5236079Swollman 5361837Salfredstruct accept_filter; 5461837Salfred 551541Srgrimesstruct socket { 5692654Sjeff vm_zone_t so_zone; /* zone we were allocated from */ 5786487Sdillon int so_count; /* reference count */ 581541Srgrimes short so_type; /* generic type, see socket.h */ 591541Srgrimes short so_options; /* from socket call, see socket.h */ 601541Srgrimes short so_linger; /* time to linger while closing */ 611541Srgrimes short so_state; /* internal state flags SS_*, below */ 621541Srgrimes caddr_t so_pcb; /* protocol control block */ 631541Srgrimes struct protosw *so_proto; /* protocol handle */ 641541Srgrimes/* 6513765Smpp * Variables for connection queuing. 661541Srgrimes * Socket where accepts occur is so_head in all subsidiary sockets. 671541Srgrimes * If so_head is 0, socket is not related to an accept. 6878913Sjlemon * For head socket so_incomp queues partially completed connections, 6978913Sjlemon * while so_comp is a queue of connections ready to be accepted. 701541Srgrimes * If a connection is aborted and it has so_head set, then 7178913Sjlemon * it has to be pulled out of either so_incomp or so_comp. 721541Srgrimes * We allow connections to queue up based on current queue lengths 731541Srgrimes * and limit on number of queued connections for this socket. 741541Srgrimes */ 751541Srgrimes struct socket *so_head; /* back pointer to accept socket */ 7660938Sjake TAILQ_HEAD(, socket) so_incomp; /* queue of partial unaccepted connections */ 7760938Sjake TAILQ_HEAD(, socket) so_comp; /* queue of complete unaccepted connections */ 7860938Sjake TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */ 7914547Sdg short so_qlen; /* number of unaccepted connections */ 8018787Spst short so_incqlen; /* number of unaccepted incomplete 8118787Spst connections */ 821541Srgrimes short so_qlimit; /* max number queued connections */ 831541Srgrimes short so_timeo; /* connection timeout */ 841541Srgrimes u_short so_error; /* error affecting connection */ 8541087Struckman struct sigio *so_sigio; /* information for async I/O or 8641087Struckman out of band data (SIGURG) */ 871541Srgrimes u_long so_oobmark; /* chars to oob mark */ 8860938Sjake TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */ 891541Srgrimes/* 901541Srgrimes * Variables for socket buffering. 911541Srgrimes */ 9283421Sobrien struct sockbuf { 931541Srgrimes u_long sb_cc; /* actual chars in buffer */ 941541Srgrimes u_long sb_hiwat; /* max actual char count */ 951541Srgrimes u_long sb_mbcnt; /* chars of mbufs used */ 961541Srgrimes u_long sb_mbmax; /* max chars of mbufs to use */ 971541Srgrimes long sb_lowat; /* low water mark */ 981541Srgrimes struct mbuf *sb_mb; /* the mbuf chain */ 991541Srgrimes struct selinfo sb_sel; /* process selecting read/write */ 1001541Srgrimes short sb_flags; /* flags, see below */ 1011541Srgrimes short sb_timeo; /* timeout for read/write */ 1021541Srgrimes } so_rcv, so_snd; 1031541Srgrimes#define SB_MAX (256*1024) /* default for max chars in sockbuf */ 1041541Srgrimes#define SB_LOCK 0x01 /* lock on data queue */ 1051541Srgrimes#define SB_WANT 0x02 /* someone is waiting to lock */ 1061541Srgrimes#define SB_WAIT 0x04 /* someone is waiting for data/space */ 1071541Srgrimes#define SB_SEL 0x08 /* someone is selecting */ 1081541Srgrimes#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 10936527Speter#define SB_UPCALL 0x20 /* someone wants an upcall */ 1101541Srgrimes#define SB_NOINTR 0x40 /* operations not interruptible */ 11155943Sjasone#define SB_AIO 0x80 /* AIO operations queued */ 11259288Sjlemon#define SB_KNOTE 0x100 /* kernel note attached */ 1131541Srgrimes 11492719Salfred void (*so_upcall)(struct socket *, void *, int); 11538482Swollman void *so_upcallarg; 11651381Sgreen struct ucred *so_cred; /* user credentials */ 11738482Swollman /* NB: generation count must not be first; easiest to make it last. */ 11836079Swollman so_gen_t so_gencnt; /* generation count */ 11943458Sbde void *so_emuldata; /* private data for emulators */ 12083421Sobrien struct so_accf { 12161837Salfred struct accept_filter *so_accept_filter; 12261837Salfred void *so_accept_filter_arg; /* saved filter args */ 12361837Salfred char *so_accept_filter_str; /* saved user args */ 12461837Salfred } *so_accf; 1251541Srgrimes}; 1261541Srgrimes 1271541Srgrimes/* 1281541Srgrimes * Socket state bits. 1291541Srgrimes */ 13014547Sdg#define SS_NOFDREF 0x0001 /* no file table ref any more */ 13114547Sdg#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ 13214547Sdg#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ 13314547Sdg#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ 13414547Sdg#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 13514547Sdg#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 13614547Sdg#define SS_RCVATMARK 0x0040 /* at mark on input */ 1371541Srgrimes 13814547Sdg#define SS_NBIO 0x0100 /* non-blocking ops */ 13914547Sdg#define SS_ASYNC 0x0200 /* async i/o notify */ 14014547Sdg#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ 1411541Srgrimes 14214547Sdg#define SS_INCOMP 0x0800 /* unaccepted, incomplete connection */ 14314547Sdg#define SS_COMP 0x1000 /* unaccepted, complete connection */ 14443196Sfenner#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ 1451541Srgrimes 14636079Swollman/* 14736079Swollman * Externalized form of struct socket used by the sysctl(3) interface. 14836079Swollman */ 14983045Sobrienstruct xsocket { 15036079Swollman size_t xso_len; /* length of this structure */ 15136079Swollman struct socket *xso_so; /* makes a convenient handle sometimes */ 15236079Swollman short so_type; 15336079Swollman short so_options; 15436079Swollman short so_linger; 15536079Swollman short so_state; 15636079Swollman caddr_t so_pcb; /* another convenient handle */ 15736079Swollman int xso_protocol; 15836079Swollman int xso_family; 15936079Swollman short so_qlen; 16036079Swollman short so_incqlen; 16136079Swollman short so_qlimit; 16236079Swollman short so_timeo; 16336079Swollman u_short so_error; 16436079Swollman pid_t so_pgid; 16536079Swollman u_long so_oobmark; 16683421Sobrien struct xsockbuf { 16736079Swollman u_long sb_cc; 16836079Swollman u_long sb_hiwat; 16936079Swollman u_long sb_mbcnt; 17036079Swollman u_long sb_mbmax; 17136079Swollman long sb_lowat; 17236079Swollman short sb_flags; 17336079Swollman short sb_timeo; 17436079Swollman } so_rcv, so_snd; 17536079Swollman uid_t so_uid; /* XXX */ 17636079Swollman}; 17714547Sdg 1781541Srgrimes/* 1791541Srgrimes * Macros for sockets and socket buffering. 1801541Srgrimes */ 1811541Srgrimes 1821541Srgrimes/* 18336527Speter * Do we need to notify the other side when I/O is possible? 18436527Speter */ 18555943Sjasone#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ 18659288Sjlemon SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) 18736527Speter 18836527Speter/* 1891541Srgrimes * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 1901541Srgrimes * This is problematical if the fields are unsigned, as the space might 1911541Srgrimes * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 1921541Srgrimes * overflow and return 0. Should use "lmin" but it doesn't exist now. 1931541Srgrimes */ 1941541Srgrimes#define sbspace(sb) \ 1951541Srgrimes ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ 1961541Srgrimes (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) 1971541Srgrimes 1981541Srgrimes/* do we have to send all at once on a socket? */ 1991541Srgrimes#define sosendallatonce(so) \ 2001541Srgrimes ((so)->so_proto->pr_flags & PR_ATOMIC) 2011541Srgrimes 2021541Srgrimes/* can we read something from so? */ 2031541Srgrimes#define soreadable(so) \ 2041541Srgrimes ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ 2051541Srgrimes ((so)->so_state & SS_CANTRCVMORE) || \ 20670536Sphk !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) 2071541Srgrimes 2081541Srgrimes/* can we write something to so? */ 2091541Srgrimes#define sowriteable(so) \ 2103304Sphk ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ 2111541Srgrimes (((so)->so_state&SS_ISCONNECTED) || \ 2123304Sphk ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ 2131541Srgrimes ((so)->so_state & SS_CANTSENDMORE) || \ 2141541Srgrimes (so)->so_error) 2151541Srgrimes 2161541Srgrimes/* adjust counters in sb reflecting allocation of m */ 2171541Srgrimes#define sballoc(sb, m) { \ 2181541Srgrimes (sb)->sb_cc += (m)->m_len; \ 2191541Srgrimes (sb)->sb_mbcnt += MSIZE; \ 2201541Srgrimes if ((m)->m_flags & M_EXT) \ 2211541Srgrimes (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ 2221541Srgrimes} 2231541Srgrimes 2241541Srgrimes/* adjust counters in sb reflecting freeing of m */ 2251541Srgrimes#define sbfree(sb, m) { \ 2261541Srgrimes (sb)->sb_cc -= (m)->m_len; \ 2271541Srgrimes (sb)->sb_mbcnt -= MSIZE; \ 2281541Srgrimes if ((m)->m_flags & M_EXT) \ 2291541Srgrimes (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ 2301541Srgrimes} 2311541Srgrimes 2321541Srgrimes/* 2331541Srgrimes * Set lock on sockbuf sb; sleep if lock is already held. 2341541Srgrimes * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. 2351541Srgrimes * Returns error without lock if sleep is interrupted. 2361541Srgrimes */ 2371541Srgrimes#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ 2381541Srgrimes (((wf) == M_WAITOK) ? sb_lock(sb) : EWOULDBLOCK) : \ 2391541Srgrimes ((sb)->sb_flags |= SB_LOCK), 0) 2401541Srgrimes 2411541Srgrimes/* release lock on sockbuf sb */ 2421541Srgrimes#define sbunlock(sb) { \ 2431541Srgrimes (sb)->sb_flags &= ~SB_LOCK; \ 2441541Srgrimes if ((sb)->sb_flags & SB_WANT) { \ 2451541Srgrimes (sb)->sb_flags &= ~SB_WANT; \ 2461541Srgrimes wakeup((caddr_t)&(sb)->sb_flags); \ 2471541Srgrimes } \ 2481541Srgrimes} 2491541Srgrimes 25086487Sdillon/* 25186487Sdillon * soref()/sorele() ref-count the socket structure. Note that you must 25286487Sdillon * still explicitly close the socket, but the last ref count will free 25386487Sdillon * the structure. 25486487Sdillon */ 25586487Sdillon 25686487Sdillon#define soref(so) do { \ 25789318Salfred ++(so)->so_count; \ 25886487Sdillon } while (0) 25986487Sdillon 26086487Sdillon#define sorele(so) do { \ 26189318Salfred if ((so)->so_count <= 0) \ 26286487Sdillon panic("sorele");\ 26389318Salfred if (--(so)->so_count == 0)\ 26486487Sdillon sofree(so); \ 26586487Sdillon } while (0) 26686487Sdillon 26786487Sdillon#define sotryfree(so) do { \ 26889318Salfred if ((so)->so_count == 0) \ 26986487Sdillon sofree(so); \ 27086487Sdillon } while(0) 27186487Sdillon 27236527Speter#define sorwakeup(so) do { \ 27336527Speter if (sb_notify(&(so)->so_rcv)) \ 27436527Speter sowakeup((so), &(so)->so_rcv); \ 27536527Speter } while (0) 2761541Srgrimes 27736527Speter#define sowwakeup(so) do { \ 27836527Speter if (sb_notify(&(so)->so_snd)) \ 27936527Speter sowakeup((so), &(so)->so_snd); \ 28036527Speter } while (0) 2811541Srgrimes 28255205Speter#ifdef _KERNEL 28331927Sbde 28438482Swollman/* 28538482Swollman * Argument structure for sosetopt et seq. This is in the KERNEL 28638482Swollman * section because it will never be visible to user code. 28738482Swollman */ 28838482Swollmanenum sopt_dir { SOPT_GET, SOPT_SET }; 28938482Swollmanstruct sockopt { 29038482Swollman enum sopt_dir sopt_dir; /* is this a get or a set? */ 29138482Swollman int sopt_level; /* second arg of [gs]etsockopt */ 29238482Swollman int sopt_name; /* third arg of [gs]etsockopt */ 29338482Swollman void *sopt_val; /* fourth arg of [gs]etsockopt */ 29438482Swollman size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ 29583366Sjulian struct thread *sopt_td; /* calling thread or null if kernel */ 29638482Swollman}; 29738482Swollman 29840931Sdgstruct sf_buf { 29960938Sjake SLIST_ENTRY(sf_buf) free_list; /* list of free buffer slots */ 30040931Sdg struct vm_page *m; /* currently mapped page */ 30140931Sdg vm_offset_t kva; /* va of mapping */ 30240931Sdg}; 30340931Sdg 30461837Salfredstruct accept_filter { 30561837Salfred char accf_name[16]; 30661837Salfred void (*accf_callback) 30792719Salfred (struct socket *so, void *arg, int waitflag); 30861837Salfred void * (*accf_create) 30992719Salfred (struct socket *so, char *arg); 31061837Salfred void (*accf_destroy) 31192719Salfred (struct socket *so); 31261837Salfred SLIST_ENTRY(accept_filter) accf_next; /* next on the list */ 31382656Sjlemon}; 31461837Salfred 31531927Sbde#ifdef MALLOC_DECLARE 31631927SbdeMALLOC_DECLARE(M_PCB); 31731927SbdeMALLOC_DECLARE(M_SONAME); 31861837SalfredMALLOC_DECLARE(M_ACCF); 31931927Sbde#endif 32031927Sbde 32136079Swollmanextern int maxsockets; 3222112Swollmanextern u_long sb_max; 32392654Sjeffextern vm_zone_t socket_zone; 32436079Swollmanextern so_gen_t so_gencnt; 32514505Shsu 32632995Sbdestruct file; 32715492Sbdestruct filedesc; 32815492Sbdestruct mbuf; 32915492Sbdestruct sockaddr; 33015492Sbdestruct stat; 33132995Sbdestruct ucred; 33232995Sbdestruct uio; 33372521Sjlemonstruct knote; 33415492Sbde 3351541Srgrimes/* 3361541Srgrimes * File operations on sockets. 3371541Srgrimes */ 33892719Salfredint soo_read(struct file *fp, struct uio *uio, struct ucred *cred, 33992719Salfred int flags, struct thread *td); 34092719Salfredint soo_write(struct file *fp, struct uio *uio, struct ucred *cred, 34192719Salfred int flags, struct thread *td); 34292719Salfredint soo_close(struct file *fp, struct thread *td); 34392719Salfredint soo_ioctl(struct file *fp, u_long cmd, caddr_t data, 34492719Salfred struct thread *td); 34592719Salfredint soo_poll(struct file *fp, int events, struct ucred *cred, 34692719Salfred struct thread *td); 34792719Salfredint soo_stat(struct file *fp, struct stat *ub, struct thread *td); 34892719Salfredint sokqfilter(struct file *fp, struct knote *kn); 3493304Sphk 3503304Sphk/* 3513304Sphk * From uipc_socket and friends 3523304Sphk */ 35392719Salfredstruct sockaddr *dup_sockaddr(struct sockaddr *sa, int canwait); 35492719Salfredint sockargs(struct mbuf **mp, caddr_t buf, int buflen, int type); 35592719Salfredint getsockaddr(struct sockaddr **namp, caddr_t uaddr, size_t len); 35692719Salfredvoid sbappend(struct sockbuf *sb, struct mbuf *m); 35792719Salfredint sbappendaddr(struct sockbuf *sb, struct sockaddr *asa, 35892719Salfred struct mbuf *m0, struct mbuf *control); 35992719Salfredint sbappendcontrol(struct sockbuf *sb, struct mbuf *m0, 36092719Salfred struct mbuf *control); 36192719Salfredvoid sbappendrecord(struct sockbuf *sb, struct mbuf *m0); 36292719Salfredvoid sbcheck(struct sockbuf *sb); 36392719Salfredvoid sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n); 36419670Sbdestruct mbuf * 36592719Salfred sbcreatecontrol(caddr_t p, int size, int type, int level); 36692719Salfredvoid sbdrop(struct sockbuf *sb, int len); 36792719Salfredvoid sbdroprecord(struct sockbuf *sb); 36892719Salfredvoid sbflush(struct sockbuf *sb); 36992719Salfredvoid sbinsertoob(struct sockbuf *sb, struct mbuf *m0); 37092719Salfredvoid sbrelease(struct sockbuf *sb, struct socket *so); 37192719Salfredint sbreserve(struct sockbuf *sb, u_long cc, struct socket *so, 37292719Salfred struct thread *td); 37392719Salfredvoid sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb); 37492719Salfredint sbwait(struct sockbuf *sb); 37592719Salfredint sb_lock(struct sockbuf *sb); 37692719Salfredint soabort(struct socket *so); 37792719Salfredint soaccept(struct socket *so, struct sockaddr **nam); 37892719Salfredstruct socket *soalloc(int waitok); 37992719Salfredint sobind(struct socket *so, struct sockaddr *nam, struct thread *td); 38092719Salfredvoid socantrcvmore(struct socket *so); 38192719Salfredvoid socantsendmore(struct socket *so); 38292719Salfredint soclose(struct socket *so); 38392719Salfredint soconnect(struct socket *so, struct sockaddr *nam, struct thread *td); 38492719Salfredint soconnect2(struct socket *so1, struct socket *so2); 38592719Salfredint socreate(int dom, struct socket **aso, int type, int proto, 38692719Salfred struct ucred *cred, struct thread *td); 38792719Salfredint sodisconnect(struct socket *so); 38892719Salfredvoid sofree(struct socket *so); 38992719Salfredint sogetopt(struct socket *so, struct sockopt *sopt); 39092719Salfredvoid sohasoutofband(struct socket *so); 39192719Salfredvoid soisconnected(struct socket *so); 39292719Salfredvoid soisconnecting(struct socket *so); 39392719Salfredvoid soisdisconnected(struct socket *so); 39492719Salfredvoid soisdisconnecting(struct socket *so); 39592719Salfredint solisten(struct socket *so, int backlog, struct thread *td); 39614505Shsustruct socket * 39792719Salfred sodropablereq(struct socket *head); 39818787Spststruct socket * 39992719Salfred sonewconn(struct socket *head, int connstatus); 40092719Salfredint sooptcopyin(struct sockopt *sopt, void *buf, size_t len, 40192719Salfred size_t minlen); 40292719Salfredint sooptcopyout(struct sockopt *sopt, void *buf, size_t len); 40353541Sshin 40453541Sshin/* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ 40592719Salfredint soopt_getm(struct sockopt *sopt, struct mbuf **mp); 40692719Salfredint soopt_mcopyin(struct sockopt *sopt, struct mbuf *m); 40792719Salfredint soopt_mcopyout(struct sockopt *sopt, struct mbuf *m); 40853541Sshin 40992719Salfredint sopoll(struct socket *so, int events, struct ucred *cred, 41092719Salfred struct thread *td); 41192719Salfredint soreceive(struct socket *so, struct sockaddr **paddr, 41228270Swollman struct uio *uio, struct mbuf **mp0, 41392719Salfred struct mbuf **controlp, int *flagsp); 41492719Salfredint soreserve(struct socket *so, u_long sndcc, u_long rcvcc); 41592719Salfredvoid sorflush(struct socket *so); 41692719Salfredint sosend(struct socket *so, struct sockaddr *addr, struct uio *uio, 41728270Swollman struct mbuf *top, struct mbuf *control, int flags, 41892719Salfred struct thread *td); 41992719Salfredint sosetopt(struct socket *so, struct sockopt *sopt); 42092719Salfredint soshutdown(struct socket *so, int how); 42192719Salfredvoid sotoxsocket(struct socket *so, struct xsocket *xso); 42292719Salfredvoid sowakeup(struct socket *so, struct sockbuf *sb); 42331927Sbde 42461837Salfred/* accept filter functions */ 42592719Salfredint accept_filt_add(struct accept_filter *filt); 42692719Salfredint accept_filt_del(char *name); 42792719Salfredstruct accept_filter * accept_filt_get(char *name); 42861837Salfred#ifdef ACCEPT_FILTER_MOD 42992719Salfredint accept_filt_generic_mod_event(module_t mod, int event, void *data); 43065534SalfredSYSCTL_DECL(_net_inet_accf); 43161837Salfred#endif /* ACCEPT_FILTER_MOD */ 43261837Salfred 43392719Salfredint socheckuid(struct socket *so, uid_t uid); 43492719Salfredint socheckproc(struct socket *so, struct proc *p); 43584527Sps 43655205Speter#endif /* _KERNEL */ 4372165Spaul 43814505Shsu#endif /* !_SYS_SOCKETVAR_H_ */ 439