socketvar.h revision 86487
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 86487 2001-11-17 03:07:11Z dillon $ 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 */ 431541Srgrimes 441541Srgrimes/* 451541Srgrimes * Kernel structure per socket. 461541Srgrimes * Contains send and receive buffer queues, 471541Srgrimes * handle on protocol and pointer to protocol 481541Srgrimes * private data and error information. 491541Srgrimes */ 5036079Swollmantypedef u_quad_t so_gen_t; 5136079Swollman 5261837Salfredstruct accept_filter; 5361837Salfred 541541Srgrimesstruct socket { 5536079Swollman struct vm_zone *so_zone; /* zone we were allocated from */ 5686487Sdillon int so_count; /* reference count */ 571541Srgrimes short so_type; /* generic type, see socket.h */ 581541Srgrimes short so_options; /* from socket call, see socket.h */ 591541Srgrimes short so_linger; /* time to linger while closing */ 601541Srgrimes short so_state; /* internal state flags SS_*, below */ 611541Srgrimes caddr_t so_pcb; /* protocol control block */ 621541Srgrimes struct protosw *so_proto; /* protocol handle */ 631541Srgrimes/* 6413765Smpp * Variables for connection queuing. 651541Srgrimes * Socket where accepts occur is so_head in all subsidiary sockets. 661541Srgrimes * If so_head is 0, socket is not related to an accept. 6778913Sjlemon * For head socket so_incomp queues partially completed connections, 6878913Sjlemon * while so_comp is a queue of connections ready to be accepted. 691541Srgrimes * If a connection is aborted and it has so_head set, then 7078913Sjlemon * it has to be pulled out of either so_incomp or so_comp. 711541Srgrimes * We allow connections to queue up based on current queue lengths 721541Srgrimes * and limit on number of queued connections for this socket. 731541Srgrimes */ 741541Srgrimes struct socket *so_head; /* back pointer to accept socket */ 7560938Sjake TAILQ_HEAD(, socket) so_incomp; /* queue of partial unaccepted connections */ 7660938Sjake TAILQ_HEAD(, socket) so_comp; /* queue of complete unaccepted connections */ 7760938Sjake TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */ 7814547Sdg short so_qlen; /* number of unaccepted connections */ 7918787Spst short so_incqlen; /* number of unaccepted incomplete 8018787Spst connections */ 811541Srgrimes short so_qlimit; /* max number queued connections */ 821541Srgrimes short so_timeo; /* connection timeout */ 831541Srgrimes u_short so_error; /* error affecting connection */ 8441087Struckman struct sigio *so_sigio; /* information for async I/O or 8541087Struckman out of band data (SIGURG) */ 861541Srgrimes u_long so_oobmark; /* chars to oob mark */ 8760938Sjake TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */ 881541Srgrimes/* 891541Srgrimes * Variables for socket buffering. 901541Srgrimes */ 9183421Sobrien struct sockbuf { 921541Srgrimes u_long sb_cc; /* actual chars in buffer */ 931541Srgrimes u_long sb_hiwat; /* max actual char count */ 941541Srgrimes u_long sb_mbcnt; /* chars of mbufs used */ 951541Srgrimes u_long sb_mbmax; /* max chars of mbufs to use */ 961541Srgrimes long sb_lowat; /* low water mark */ 971541Srgrimes struct mbuf *sb_mb; /* the mbuf chain */ 981541Srgrimes struct selinfo sb_sel; /* process selecting read/write */ 991541Srgrimes short sb_flags; /* flags, see below */ 1001541Srgrimes short sb_timeo; /* timeout for read/write */ 1011541Srgrimes } so_rcv, so_snd; 1021541Srgrimes#define SB_MAX (256*1024) /* default for max chars in sockbuf */ 1031541Srgrimes#define SB_LOCK 0x01 /* lock on data queue */ 1041541Srgrimes#define SB_WANT 0x02 /* someone is waiting to lock */ 1051541Srgrimes#define SB_WAIT 0x04 /* someone is waiting for data/space */ 1061541Srgrimes#define SB_SEL 0x08 /* someone is selecting */ 1071541Srgrimes#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 10836527Speter#define SB_UPCALL 0x20 /* someone wants an upcall */ 1091541Srgrimes#define SB_NOINTR 0x40 /* operations not interruptible */ 11055943Sjasone#define SB_AIO 0x80 /* AIO operations queued */ 11159288Sjlemon#define SB_KNOTE 0x100 /* kernel note attached */ 1121541Srgrimes 11338482Swollman void (*so_upcall) __P((struct socket *, void *, int)); 11438482Swollman void *so_upcallarg; 11551381Sgreen struct ucred *so_cred; /* user credentials */ 11638482Swollman /* NB: generation count must not be first; easiest to make it last. */ 11736079Swollman so_gen_t so_gencnt; /* generation count */ 11843458Sbde void *so_emuldata; /* private data for emulators */ 11983421Sobrien struct so_accf { 12061837Salfred struct accept_filter *so_accept_filter; 12161837Salfred void *so_accept_filter_arg; /* saved filter args */ 12261837Salfred char *so_accept_filter_str; /* saved user args */ 12361837Salfred } *so_accf; 1241541Srgrimes}; 1251541Srgrimes 1261541Srgrimes/* 1271541Srgrimes * Socket state bits. 1281541Srgrimes */ 12914547Sdg#define SS_NOFDREF 0x0001 /* no file table ref any more */ 13014547Sdg#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ 13114547Sdg#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ 13214547Sdg#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ 13314547Sdg#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 13414547Sdg#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 13514547Sdg#define SS_RCVATMARK 0x0040 /* at mark on input */ 1361541Srgrimes 13714547Sdg#define SS_NBIO 0x0100 /* non-blocking ops */ 13814547Sdg#define SS_ASYNC 0x0200 /* async i/o notify */ 13914547Sdg#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ 1401541Srgrimes 14114547Sdg#define SS_INCOMP 0x0800 /* unaccepted, incomplete connection */ 14214547Sdg#define SS_COMP 0x1000 /* unaccepted, complete connection */ 14343196Sfenner#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ 1441541Srgrimes 14536079Swollman/* 14636079Swollman * Externalized form of struct socket used by the sysctl(3) interface. 14736079Swollman */ 14883045Sobrienstruct xsocket { 14936079Swollman size_t xso_len; /* length of this structure */ 15036079Swollman struct socket *xso_so; /* makes a convenient handle sometimes */ 15136079Swollman short so_type; 15236079Swollman short so_options; 15336079Swollman short so_linger; 15436079Swollman short so_state; 15536079Swollman caddr_t so_pcb; /* another convenient handle */ 15636079Swollman int xso_protocol; 15736079Swollman int xso_family; 15836079Swollman short so_qlen; 15936079Swollman short so_incqlen; 16036079Swollman short so_qlimit; 16136079Swollman short so_timeo; 16236079Swollman u_short so_error; 16336079Swollman pid_t so_pgid; 16436079Swollman u_long so_oobmark; 16583421Sobrien struct xsockbuf { 16636079Swollman u_long sb_cc; 16736079Swollman u_long sb_hiwat; 16836079Swollman u_long sb_mbcnt; 16936079Swollman u_long sb_mbmax; 17036079Swollman long sb_lowat; 17136079Swollman short sb_flags; 17236079Swollman short sb_timeo; 17336079Swollman } so_rcv, so_snd; 17436079Swollman uid_t so_uid; /* XXX */ 17536079Swollman}; 17614547Sdg 1771541Srgrimes/* 1781541Srgrimes * Macros for sockets and socket buffering. 1791541Srgrimes */ 1801541Srgrimes 1811541Srgrimes/* 18236527Speter * Do we need to notify the other side when I/O is possible? 18336527Speter */ 18455943Sjasone#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ 18559288Sjlemon SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) 18636527Speter 18736527Speter/* 1881541Srgrimes * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 1891541Srgrimes * This is problematical if the fields are unsigned, as the space might 1901541Srgrimes * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 1911541Srgrimes * overflow and return 0. Should use "lmin" but it doesn't exist now. 1921541Srgrimes */ 1931541Srgrimes#define sbspace(sb) \ 1941541Srgrimes ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ 1951541Srgrimes (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) 1961541Srgrimes 1971541Srgrimes/* do we have to send all at once on a socket? */ 1981541Srgrimes#define sosendallatonce(so) \ 1991541Srgrimes ((so)->so_proto->pr_flags & PR_ATOMIC) 2001541Srgrimes 2011541Srgrimes/* can we read something from so? */ 2021541Srgrimes#define soreadable(so) \ 2031541Srgrimes ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ 2041541Srgrimes ((so)->so_state & SS_CANTRCVMORE) || \ 20570536Sphk !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) 2061541Srgrimes 2071541Srgrimes/* can we write something to so? */ 2081541Srgrimes#define sowriteable(so) \ 2093304Sphk ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ 2101541Srgrimes (((so)->so_state&SS_ISCONNECTED) || \ 2113304Sphk ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ 2121541Srgrimes ((so)->so_state & SS_CANTSENDMORE) || \ 2131541Srgrimes (so)->so_error) 2141541Srgrimes 2151541Srgrimes/* adjust counters in sb reflecting allocation of m */ 2161541Srgrimes#define sballoc(sb, m) { \ 2171541Srgrimes (sb)->sb_cc += (m)->m_len; \ 2181541Srgrimes (sb)->sb_mbcnt += MSIZE; \ 2191541Srgrimes if ((m)->m_flags & M_EXT) \ 2201541Srgrimes (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ 2211541Srgrimes} 2221541Srgrimes 2231541Srgrimes/* adjust counters in sb reflecting freeing of m */ 2241541Srgrimes#define sbfree(sb, m) { \ 2251541Srgrimes (sb)->sb_cc -= (m)->m_len; \ 2261541Srgrimes (sb)->sb_mbcnt -= MSIZE; \ 2271541Srgrimes if ((m)->m_flags & M_EXT) \ 2281541Srgrimes (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ 2291541Srgrimes} 2301541Srgrimes 2311541Srgrimes/* 2321541Srgrimes * Set lock on sockbuf sb; sleep if lock is already held. 2331541Srgrimes * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. 2341541Srgrimes * Returns error without lock if sleep is interrupted. 2351541Srgrimes */ 2361541Srgrimes#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ 2371541Srgrimes (((wf) == M_WAITOK) ? sb_lock(sb) : EWOULDBLOCK) : \ 2381541Srgrimes ((sb)->sb_flags |= SB_LOCK), 0) 2391541Srgrimes 2401541Srgrimes/* release lock on sockbuf sb */ 2411541Srgrimes#define sbunlock(sb) { \ 2421541Srgrimes (sb)->sb_flags &= ~SB_LOCK; \ 2431541Srgrimes if ((sb)->sb_flags & SB_WANT) { \ 2441541Srgrimes (sb)->sb_flags &= ~SB_WANT; \ 2451541Srgrimes wakeup((caddr_t)&(sb)->sb_flags); \ 2461541Srgrimes } \ 2471541Srgrimes} 2481541Srgrimes 24986487Sdillon/* 25086487Sdillon * soref()/sorele() ref-count the socket structure. Note that you must 25186487Sdillon * still explicitly close the socket, but the last ref count will free 25286487Sdillon * the structure. 25386487Sdillon */ 25486487Sdillon 25586487Sdillon#define soref(so) do { \ 25686487Sdillon ++so->so_count; \ 25786487Sdillon } while (0) 25886487Sdillon 25986487Sdillon#define sorele(so) do { \ 26086487Sdillon if (so->so_count <= 0) \ 26186487Sdillon panic("sorele");\ 26286487Sdillon if (--so->so_count == 0)\ 26386487Sdillon sofree(so); \ 26486487Sdillon } while (0) 26586487Sdillon 26686487Sdillon#define sotryfree(so) do { \ 26786487Sdillon if (so->so_count == 0) \ 26886487Sdillon sofree(so); \ 26986487Sdillon } while(0) 27086487Sdillon 27136527Speter#define sorwakeup(so) do { \ 27236527Speter if (sb_notify(&(so)->so_rcv)) \ 27336527Speter sowakeup((so), &(so)->so_rcv); \ 27436527Speter } while (0) 2751541Srgrimes 27636527Speter#define sowwakeup(so) do { \ 27736527Speter if (sb_notify(&(so)->so_snd)) \ 27836527Speter sowakeup((so), &(so)->so_snd); \ 27936527Speter } while (0) 2801541Srgrimes 28155205Speter#ifdef _KERNEL 28231927Sbde 28338482Swollman/* 28438482Swollman * Argument structure for sosetopt et seq. This is in the KERNEL 28538482Swollman * section because it will never be visible to user code. 28638482Swollman */ 28738482Swollmanenum sopt_dir { SOPT_GET, SOPT_SET }; 28838482Swollmanstruct sockopt { 28938482Swollman enum sopt_dir sopt_dir; /* is this a get or a set? */ 29038482Swollman int sopt_level; /* second arg of [gs]etsockopt */ 29138482Swollman int sopt_name; /* third arg of [gs]etsockopt */ 29238482Swollman void *sopt_val; /* fourth arg of [gs]etsockopt */ 29338482Swollman size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ 29483366Sjulian struct thread *sopt_td; /* calling thread or null if kernel */ 29538482Swollman}; 29638482Swollman 29740931Sdgstruct sf_buf { 29860938Sjake SLIST_ENTRY(sf_buf) free_list; /* list of free buffer slots */ 29940931Sdg struct vm_page *m; /* currently mapped page */ 30040931Sdg vm_offset_t kva; /* va of mapping */ 30140931Sdg}; 30240931Sdg 30361837Salfredstruct accept_filter { 30461837Salfred char accf_name[16]; 30561837Salfred void (*accf_callback) 30661837Salfred __P((struct socket *so, void *arg, int waitflag)); 30761837Salfred void * (*accf_create) 30861837Salfred __P((struct socket *so, char *arg)); 30961837Salfred void (*accf_destroy) 31061837Salfred __P((struct socket *so)); 31161837Salfred SLIST_ENTRY(accept_filter) accf_next; /* next on the list */ 31282656Sjlemon}; 31361837Salfred 31431927Sbde#ifdef MALLOC_DECLARE 31531927SbdeMALLOC_DECLARE(M_PCB); 31631927SbdeMALLOC_DECLARE(M_SONAME); 31761837SalfredMALLOC_DECLARE(M_ACCF); 31831927Sbde#endif 31931927Sbde 32036079Swollmanextern int maxsockets; 3212112Swollmanextern u_long sb_max; 32236079Swollmanextern struct vm_zone *socket_zone; 32336079Swollmanextern so_gen_t so_gencnt; 32414505Shsu 32532995Sbdestruct file; 32615492Sbdestruct filedesc; 32715492Sbdestruct mbuf; 32815492Sbdestruct sockaddr; 32915492Sbdestruct stat; 33032995Sbdestruct ucred; 33132995Sbdestruct uio; 33272521Sjlemonstruct knote; 33315492Sbde 3341541Srgrimes/* 3351541Srgrimes * File operations on sockets. 3361541Srgrimes */ 33745311Sdtint soo_read __P((struct file *fp, struct uio *uio, struct ucred *cred, 33883366Sjulian int flags, struct thread *td)); 33945311Sdtint soo_write __P((struct file *fp, struct uio *uio, struct ucred *cred, 34083366Sjulian int flags, struct thread *td)); 34183366Sjulianint soo_close __P((struct file *fp, struct thread *td)); 34236735Sdfrint soo_ioctl __P((struct file *fp, u_long cmd, caddr_t data, 34383366Sjulian struct thread *td)); 34429350Speterint soo_poll __P((struct file *fp, int events, struct ucred *cred, 34583366Sjulian struct thread *td)); 34683366Sjulianint soo_stat __P((struct file *fp, struct stat *ub, struct thread *td)); 34772521Sjlemonint sokqfilter __P((struct file *fp, struct knote *kn)); 3483304Sphk 3493304Sphk/* 3503304Sphk * From uipc_socket and friends 3513304Sphk */ 35228270Swollmanstruct sockaddr *dup_sockaddr __P((struct sockaddr *sa, int canwait)); 35368883Sdillonint holdsock __P((struct filedesc *fdp, int fdes, struct file **fpp)); 35414505Shsuint sockargs __P((struct mbuf **mp, caddr_t buf, int buflen, int type)); 35528270Swollmanint getsockaddr __P((struct sockaddr **namp, caddr_t uaddr, size_t len)); 35614505Shsuvoid sbappend __P((struct sockbuf *sb, struct mbuf *m)); 35714505Shsuint sbappendaddr __P((struct sockbuf *sb, struct sockaddr *asa, 35814505Shsu struct mbuf *m0, struct mbuf *control)); 35914505Shsuint sbappendcontrol __P((struct sockbuf *sb, struct mbuf *m0, 36014505Shsu struct mbuf *control)); 36114505Shsuvoid sbappendrecord __P((struct sockbuf *sb, struct mbuf *m0)); 36214505Shsuvoid sbcheck __P((struct sockbuf *sb)); 36314505Shsuvoid sbcompress __P((struct sockbuf *sb, struct mbuf *m, struct mbuf *n)); 36419670Sbdestruct mbuf * 36519670Sbde sbcreatecontrol __P((caddr_t p, int size, int type, int level)); 36614505Shsuvoid sbdrop __P((struct sockbuf *sb, int len)); 36714505Shsuvoid sbdroprecord __P((struct sockbuf *sb)); 36814505Shsuvoid sbflush __P((struct sockbuf *sb)); 36914505Shsuvoid sbinsertoob __P((struct sockbuf *sb, struct mbuf *m0)); 37052070Sgreenvoid sbrelease __P((struct sockbuf *sb, struct socket *so)); 37152070Sgreenint sbreserve __P((struct sockbuf *sb, u_long cc, struct socket *so, 37283366Sjulian struct thread *td)); 37336079Swollmanvoid sbtoxsockbuf __P((struct sockbuf *sb, struct xsockbuf *xsb)); 37414505Shsuint sbwait __P((struct sockbuf *sb)); 37514505Shsuint sb_lock __P((struct sockbuf *sb)); 37614505Shsuint soabort __P((struct socket *so)); 37728270Swollmanint soaccept __P((struct socket *so, struct sockaddr **nam)); 37836079Swollmanstruct socket *soalloc __P((int waitok)); 37983366Sjulianint sobind __P((struct socket *so, struct sockaddr *nam, struct thread *td)); 38014505Shsuvoid socantrcvmore __P((struct socket *so)); 38114505Shsuvoid socantsendmore __P((struct socket *so)); 38214505Shsuint soclose __P((struct socket *so)); 38383366Sjulianint soconnect __P((struct socket *so, struct sockaddr *nam, struct thread *td)); 38414505Shsuint soconnect2 __P((struct socket *so1, struct socket *so2)); 38514505Shsuint socreate __P((int dom, struct socket **aso, int type, int proto, 38683366Sjulian struct thread *td)); 38714505Shsuint sodisconnect __P((struct socket *so)); 38814505Shsuvoid sofree __P((struct socket *so)); 38938482Swollmanint sogetopt __P((struct socket *so, struct sockopt *sopt)); 39014505Shsuvoid sohasoutofband __P((struct socket *so)); 39114505Shsuvoid soisconnected __P((struct socket *so)); 39214505Shsuvoid soisconnecting __P((struct socket *so)); 39314505Shsuvoid soisdisconnected __P((struct socket *so)); 39414505Shsuvoid soisdisconnecting __P((struct socket *so)); 39583366Sjulianint solisten __P((struct socket *so, int backlog, struct thread *td)); 39614505Shsustruct socket * 39718787Spst sodropablereq __P((struct socket *head)); 39818787Spststruct socket * 39927531Sfenner sonewconn __P((struct socket *head, int connstatus)); 40051381Sgreenstruct socket * 40183366Sjulian sonewconn3 __P((struct socket *head, int connstatus, struct thread *td)); 40238482Swollmanint sooptcopyin __P((struct sockopt *sopt, void *buf, size_t len, 40338482Swollman size_t minlen)); 40438482Swollmanint sooptcopyout __P((struct sockopt *sopt, void *buf, size_t len)); 40553541Sshin 40653541Sshin/* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ 40753541Sshinint soopt_getm __P((struct sockopt *sopt, struct mbuf **mp)); 40853541Sshinint soopt_mcopyin __P((struct sockopt *sopt, struct mbuf *m)); 40953541Sshinint soopt_mcopyout __P((struct sockopt *sopt, struct mbuf *m)); 41053541Sshin 41129350Speterint sopoll __P((struct socket *so, int events, struct ucred *cred, 41283366Sjulian struct thread *td)); 41328270Swollmanint soreceive __P((struct socket *so, struct sockaddr **paddr, 41428270Swollman struct uio *uio, struct mbuf **mp0, 41528270Swollman struct mbuf **controlp, int *flagsp)); 41614505Shsuint soreserve __P((struct socket *so, u_long sndcc, u_long rcvcc)); 41714505Shsuvoid sorflush __P((struct socket *so)); 41828270Swollmanint sosend __P((struct socket *so, struct sockaddr *addr, struct uio *uio, 41928270Swollman struct mbuf *top, struct mbuf *control, int flags, 42083366Sjulian struct thread *td)); 42138482Swollmanint sosetopt __P((struct socket *so, struct sockopt *sopt)); 42214505Shsuint soshutdown __P((struct socket *so, int how)); 42336079Swollmanvoid sotoxsocket __P((struct socket *so, struct xsocket *xso)); 42414505Shsuvoid sowakeup __P((struct socket *so, struct sockbuf *sb)); 42531927Sbde 42661837Salfred/* accept filter functions */ 42761837Salfredint accept_filt_add __P((struct accept_filter *filt)); 42861837Salfredint accept_filt_del __P((char *name)); 42961837Salfredstruct accept_filter * accept_filt_get __P((char *name)); 43061837Salfred#ifdef ACCEPT_FILTER_MOD 43161837Salfredint accept_filt_generic_mod_event __P((module_t mod, int event, void *data)); 43265534SalfredSYSCTL_DECL(_net_inet_accf); 43361837Salfred#endif /* ACCEPT_FILTER_MOD */ 43461837Salfred 43584527Spsint socheckuid __P((struct socket *so, uid_t uid)); 43684527Spsint socheckproc __P((struct socket *so, struct proc *p)); 43784527Sps 43855205Speter#endif /* _KERNEL */ 4392165Spaul 44014505Shsu#endif /* !_SYS_SOCKETVAR_H_ */ 441