socketvar.h revision 95552
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 95552 2002-04-27 08:24:29Z tanimura $ 351541Srgrimes */ 361541Srgrimes 372165Spaul#ifndef _SYS_SOCKETVAR_H_ 382165Spaul#define _SYS_SOCKETVAR_H_ 392165Spaul 4015492Sbde#include <sys/queue.h> /* for TAILQ macros */ 4195552Stanimura#include <sys/filedesc.h> 4295552Stanimura#include <sys/lock.h> 4395552Stanimura#include <sys/mutex.h> 4495552Stanimura#include <sys/sx.h> 4570834Swollman#include <sys/selinfo.h> /* for struct selinfo */ 4692751Sjeff#include <vm/uma.h> 471541Srgrimes 481541Srgrimes/* 491541Srgrimes * Kernel structure per socket. 501541Srgrimes * Contains send and receive buffer queues, 511541Srgrimes * handle on protocol and pointer to protocol 521541Srgrimes * private data and error information. 531541Srgrimes */ 5436079Swollmantypedef u_quad_t so_gen_t; 5536079Swollman 5661837Salfredstruct accept_filter; 5761837Salfred 5895552Stanimura/* 5995552Stanimura * List of locks: 6095552Stanimura * (c) const, inited in either socreate() or sonewconn() 6195552Stanimura * (m) sb_mtx mutex 6295552Stanimura * (mr) so_rcv.sb_mtx mutex 6395552Stanimura * (sg) sigio_lock sx 6495552Stanimura * (sh) sohead_lock sx 6595552Stanimura * 6695552Stanimura * Lock of so_rcv.sb_mtx can duplicate, provided that sohead_lock 6795552Stanimura * is exclusively locked. 6895552Stanimura * 6995552Stanimura * Brackets mean that this data is not protected yet. 7095552Stanimura */ 711541Srgrimesstruct socket { 7286487Sdillon int so_count; /* reference count */ 731541Srgrimes short so_type; /* generic type, see socket.h */ 741541Srgrimes short so_options; /* from socket call, see socket.h */ 751541Srgrimes short so_linger; /* time to linger while closing */ 761541Srgrimes short so_state; /* internal state flags SS_*, below */ 771541Srgrimes caddr_t so_pcb; /* protocol control block */ 781541Srgrimes struct protosw *so_proto; /* protocol handle */ 791541Srgrimes/* 8013765Smpp * Variables for connection queuing. 811541Srgrimes * Socket where accepts occur is so_head in all subsidiary sockets. 821541Srgrimes * If so_head is 0, socket is not related to an accept. 8378913Sjlemon * For head socket so_incomp queues partially completed connections, 8478913Sjlemon * while so_comp is a queue of connections ready to be accepted. 851541Srgrimes * If a connection is aborted and it has so_head set, then 8678913Sjlemon * it has to be pulled out of either so_incomp or so_comp. 871541Srgrimes * We allow connections to queue up based on current queue lengths 881541Srgrimes * and limit on number of queued connections for this socket. 891541Srgrimes */ 901541Srgrimes struct socket *so_head; /* back pointer to accept socket */ 9160938Sjake TAILQ_HEAD(, socket) so_incomp; /* queue of partial unaccepted connections */ 9260938Sjake TAILQ_HEAD(, socket) so_comp; /* queue of complete unaccepted connections */ 9360938Sjake TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */ 9414547Sdg short so_qlen; /* number of unaccepted connections */ 9518787Spst short so_incqlen; /* number of unaccepted incomplete 9618787Spst connections */ 971541Srgrimes short so_qlimit; /* max number queued connections */ 981541Srgrimes short so_timeo; /* connection timeout */ 991541Srgrimes u_short so_error; /* error affecting connection */ 10095552Stanimura struct sigio *so_sigio; /* [sg] information for async I/O or 10141087Struckman out of band data (SIGURG) */ 1021541Srgrimes u_long so_oobmark; /* chars to oob mark */ 10360938Sjake TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */ 1041541Srgrimes/* 1051541Srgrimes * Variables for socket buffering. 1061541Srgrimes */ 10783421Sobrien struct sockbuf { 1081541Srgrimes u_long sb_cc; /* actual chars in buffer */ 1091541Srgrimes u_long sb_hiwat; /* max actual char count */ 1101541Srgrimes u_long sb_mbcnt; /* chars of mbufs used */ 1111541Srgrimes u_long sb_mbmax; /* max chars of mbufs to use */ 1121541Srgrimes long sb_lowat; /* low water mark */ 1131541Srgrimes struct mbuf *sb_mb; /* the mbuf chain */ 1141541Srgrimes struct selinfo sb_sel; /* process selecting read/write */ 1151541Srgrimes short sb_flags; /* flags, see below */ 1161541Srgrimes short sb_timeo; /* timeout for read/write */ 1171541Srgrimes } so_rcv, so_snd; 1181541Srgrimes#define SB_MAX (256*1024) /* default for max chars in sockbuf */ 1191541Srgrimes#define SB_LOCK 0x01 /* lock on data queue */ 1201541Srgrimes#define SB_WANT 0x02 /* someone is waiting to lock */ 1211541Srgrimes#define SB_WAIT 0x04 /* someone is waiting for data/space */ 1221541Srgrimes#define SB_SEL 0x08 /* someone is selecting */ 1231541Srgrimes#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 12436527Speter#define SB_UPCALL 0x20 /* someone wants an upcall */ 1251541Srgrimes#define SB_NOINTR 0x40 /* operations not interruptible */ 12655943Sjasone#define SB_AIO 0x80 /* AIO operations queued */ 12759288Sjlemon#define SB_KNOTE 0x100 /* kernel note attached */ 1281541Srgrimes 12992719Salfred void (*so_upcall)(struct socket *, void *, int); 13038482Swollman void *so_upcallarg; 13151381Sgreen struct ucred *so_cred; /* user credentials */ 13238482Swollman /* NB: generation count must not be first; easiest to make it last. */ 13336079Swollman so_gen_t so_gencnt; /* generation count */ 13443458Sbde void *so_emuldata; /* private data for emulators */ 13583421Sobrien struct so_accf { 13661837Salfred struct accept_filter *so_accept_filter; 13761837Salfred void *so_accept_filter_arg; /* saved filter args */ 13861837Salfred char *so_accept_filter_str; /* saved user args */ 13961837Salfred } *so_accf; 1401541Srgrimes}; 1411541Srgrimes 1421541Srgrimes/* 1431541Srgrimes * Socket state bits. 1441541Srgrimes */ 14514547Sdg#define SS_NOFDREF 0x0001 /* no file table ref any more */ 14614547Sdg#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ 14714547Sdg#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ 14814547Sdg#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ 14914547Sdg#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 15014547Sdg#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 15114547Sdg#define SS_RCVATMARK 0x0040 /* at mark on input */ 1521541Srgrimes 15314547Sdg#define SS_NBIO 0x0100 /* non-blocking ops */ 15414547Sdg#define SS_ASYNC 0x0200 /* async i/o notify */ 15514547Sdg#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ 1561541Srgrimes 15714547Sdg#define SS_INCOMP 0x0800 /* unaccepted, incomplete connection */ 15814547Sdg#define SS_COMP 0x1000 /* unaccepted, complete connection */ 15943196Sfenner#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ 1601541Srgrimes 16136079Swollman/* 16236079Swollman * Externalized form of struct socket used by the sysctl(3) interface. 16336079Swollman */ 16483045Sobrienstruct xsocket { 16536079Swollman size_t xso_len; /* length of this structure */ 16636079Swollman struct socket *xso_so; /* makes a convenient handle sometimes */ 16736079Swollman short so_type; 16836079Swollman short so_options; 16936079Swollman short so_linger; 17036079Swollman short so_state; 17136079Swollman caddr_t so_pcb; /* another convenient handle */ 17236079Swollman int xso_protocol; 17336079Swollman int xso_family; 17436079Swollman short so_qlen; 17536079Swollman short so_incqlen; 17636079Swollman short so_qlimit; 17736079Swollman short so_timeo; 17836079Swollman u_short so_error; 17936079Swollman pid_t so_pgid; 18036079Swollman u_long so_oobmark; 18183421Sobrien struct xsockbuf { 18236079Swollman u_long sb_cc; 18336079Swollman u_long sb_hiwat; 18436079Swollman u_long sb_mbcnt; 18536079Swollman u_long sb_mbmax; 18636079Swollman long sb_lowat; 18736079Swollman short sb_flags; 18836079Swollman short sb_timeo; 18936079Swollman } so_rcv, so_snd; 19036079Swollman uid_t so_uid; /* XXX */ 19136079Swollman}; 19214547Sdg 1931541Srgrimes/* 1941541Srgrimes * Macros for sockets and socket buffering. 1951541Srgrimes */ 1961541Srgrimes 1971541Srgrimes/* 19836527Speter * Do we need to notify the other side when I/O is possible? 19936527Speter */ 20055943Sjasone#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ 20159288Sjlemon SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) 20236527Speter 20336527Speter/* 2041541Srgrimes * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 2051541Srgrimes * This is problematical if the fields are unsigned, as the space might 2061541Srgrimes * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 2071541Srgrimes * overflow and return 0. Should use "lmin" but it doesn't exist now. 2081541Srgrimes */ 2091541Srgrimes#define sbspace(sb) \ 2101541Srgrimes ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ 2111541Srgrimes (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) 2121541Srgrimes 2131541Srgrimes/* do we have to send all at once on a socket? */ 2141541Srgrimes#define sosendallatonce(so) \ 2151541Srgrimes ((so)->so_proto->pr_flags & PR_ATOMIC) 2161541Srgrimes 2171541Srgrimes/* can we read something from so? */ 2181541Srgrimes#define soreadable(so) \ 2191541Srgrimes ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ 2201541Srgrimes ((so)->so_state & SS_CANTRCVMORE) || \ 22170536Sphk !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) 2221541Srgrimes 2231541Srgrimes/* can we write something to so? */ 2241541Srgrimes#define sowriteable(so) \ 2253304Sphk ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ 2261541Srgrimes (((so)->so_state&SS_ISCONNECTED) || \ 2273304Sphk ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ 2281541Srgrimes ((so)->so_state & SS_CANTSENDMORE) || \ 2291541Srgrimes (so)->so_error) 2301541Srgrimes 2311541Srgrimes/* adjust counters in sb reflecting allocation of m */ 2321541Srgrimes#define sballoc(sb, m) { \ 2331541Srgrimes (sb)->sb_cc += (m)->m_len; \ 2341541Srgrimes (sb)->sb_mbcnt += MSIZE; \ 2351541Srgrimes if ((m)->m_flags & M_EXT) \ 2361541Srgrimes (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ 2371541Srgrimes} 2381541Srgrimes 2391541Srgrimes/* adjust counters in sb reflecting freeing of m */ 2401541Srgrimes#define sbfree(sb, m) { \ 2411541Srgrimes (sb)->sb_cc -= (m)->m_len; \ 2421541Srgrimes (sb)->sb_mbcnt -= MSIZE; \ 2431541Srgrimes if ((m)->m_flags & M_EXT) \ 2441541Srgrimes (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ 2451541Srgrimes} 2461541Srgrimes 2471541Srgrimes/* 2481541Srgrimes * Set lock on sockbuf sb; sleep if lock is already held. 2491541Srgrimes * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. 2501541Srgrimes * Returns error without lock if sleep is interrupted. 2511541Srgrimes */ 2521541Srgrimes#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ 2531541Srgrimes (((wf) == M_WAITOK) ? sb_lock(sb) : EWOULDBLOCK) : \ 2541541Srgrimes ((sb)->sb_flags |= SB_LOCK), 0) 2551541Srgrimes 2561541Srgrimes/* release lock on sockbuf sb */ 2571541Srgrimes#define sbunlock(sb) { \ 2581541Srgrimes (sb)->sb_flags &= ~SB_LOCK; \ 2591541Srgrimes if ((sb)->sb_flags & SB_WANT) { \ 2601541Srgrimes (sb)->sb_flags &= ~SB_WANT; \ 2611541Srgrimes wakeup((caddr_t)&(sb)->sb_flags); \ 2621541Srgrimes } \ 2631541Srgrimes} 2641541Srgrimes 26586487Sdillon/* 26686487Sdillon * soref()/sorele() ref-count the socket structure. Note that you must 26786487Sdillon * still explicitly close the socket, but the last ref count will free 26886487Sdillon * the structure. 26986487Sdillon */ 27086487Sdillon 27186487Sdillon#define soref(so) do { \ 27289318Salfred ++(so)->so_count; \ 27386487Sdillon } while (0) 27486487Sdillon 27586487Sdillon#define sorele(so) do { \ 27689318Salfred if ((so)->so_count <= 0) \ 27786487Sdillon panic("sorele");\ 27889318Salfred if (--(so)->so_count == 0)\ 27986487Sdillon sofree(so); \ 28086487Sdillon } while (0) 28186487Sdillon 28286487Sdillon#define sotryfree(so) do { \ 28389318Salfred if ((so)->so_count == 0) \ 28486487Sdillon sofree(so); \ 28586487Sdillon } while(0) 28686487Sdillon 28795552Stanimura#define sorwakeup_locked(so) do { \ 28895552Stanimura SIGIO_ASSERT(SX_SLOCKED); /* XXX */ \ 28995552Stanimura if (sb_notify(&(so)->so_rcv)) \ 29095552Stanimura sowakeup((so), &(so)->so_rcv); \ 29195552Stanimura } while (0) 2921541Srgrimes 29395552Stanimura#define sorwakeup(so) do { \ 29495552Stanimura SIGIO_SLOCK(); \ 29595552Stanimura sorwakeup_locked(so); \ 29695552Stanimura SIGIO_SUNLOCK(); \ 29795552Stanimura } while (0) 2981541Srgrimes 29995552Stanimura#define sowwakeup_locked(so) do { \ 30095552Stanimura SIGIO_ASSERT(SX_SLOCKED); /* XXX */ \ 30195552Stanimura if (sb_notify(&(so)->so_snd)) \ 30295552Stanimura sowakeup((so), &(so)->so_snd); \ 30395552Stanimura } while (0) 30495552Stanimura 30595552Stanimura#define sowwakeup(so) do { \ 30695552Stanimura SIGIO_SLOCK(); \ 30795552Stanimura sowwakeup_locked(so); \ 30895552Stanimura SIGIO_SUNLOCK(); \ 30995552Stanimura } while (0) 31095552Stanimura 31155205Speter#ifdef _KERNEL 31231927Sbde 31338482Swollman/* 31438482Swollman * Argument structure for sosetopt et seq. This is in the KERNEL 31538482Swollman * section because it will never be visible to user code. 31638482Swollman */ 31738482Swollmanenum sopt_dir { SOPT_GET, SOPT_SET }; 31838482Swollmanstruct sockopt { 31938482Swollman enum sopt_dir sopt_dir; /* is this a get or a set? */ 32038482Swollman int sopt_level; /* second arg of [gs]etsockopt */ 32138482Swollman int sopt_name; /* third arg of [gs]etsockopt */ 32238482Swollman void *sopt_val; /* fourth arg of [gs]etsockopt */ 32338482Swollman size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ 32483366Sjulian struct thread *sopt_td; /* calling thread or null if kernel */ 32538482Swollman}; 32638482Swollman 32740931Sdgstruct sf_buf { 32860938Sjake SLIST_ENTRY(sf_buf) free_list; /* list of free buffer slots */ 32940931Sdg struct vm_page *m; /* currently mapped page */ 33040931Sdg vm_offset_t kva; /* va of mapping */ 33140931Sdg}; 33240931Sdg 33361837Salfredstruct accept_filter { 33461837Salfred char accf_name[16]; 33561837Salfred void (*accf_callback) 33692719Salfred (struct socket *so, void *arg, int waitflag); 33761837Salfred void * (*accf_create) 33892719Salfred (struct socket *so, char *arg); 33961837Salfred void (*accf_destroy) 34092719Salfred (struct socket *so); 34161837Salfred SLIST_ENTRY(accept_filter) accf_next; /* next on the list */ 34282656Sjlemon}; 34361837Salfred 34431927Sbde#ifdef MALLOC_DECLARE 34531927SbdeMALLOC_DECLARE(M_PCB); 34631927SbdeMALLOC_DECLARE(M_SONAME); 34761837SalfredMALLOC_DECLARE(M_ACCF); 34831927Sbde#endif 34931927Sbde 35092754Sjeffextern int maxsockets; 3512112Swollmanextern u_long sb_max; 35292751Sjeffextern uma_zone_t socket_zone; 35336079Swollmanextern so_gen_t so_gencnt; 35414505Shsu 35532995Sbdestruct file; 35615492Sbdestruct filedesc; 35715492Sbdestruct mbuf; 35815492Sbdestruct sockaddr; 35915492Sbdestruct stat; 36032995Sbdestruct ucred; 36132995Sbdestruct uio; 36272521Sjlemonstruct knote; 36315492Sbde 3641541Srgrimes/* 3651541Srgrimes * File operations on sockets. 3661541Srgrimes */ 36792719Salfredint soo_read(struct file *fp, struct uio *uio, struct ucred *cred, 36892719Salfred int flags, struct thread *td); 36992719Salfredint soo_write(struct file *fp, struct uio *uio, struct ucred *cred, 37092719Salfred int flags, struct thread *td); 37192719Salfredint soo_close(struct file *fp, struct thread *td); 37292719Salfredint soo_ioctl(struct file *fp, u_long cmd, caddr_t data, 37392719Salfred struct thread *td); 37492719Salfredint soo_poll(struct file *fp, int events, struct ucred *cred, 37592719Salfred struct thread *td); 37692719Salfredint soo_stat(struct file *fp, struct stat *ub, struct thread *td); 37792719Salfredint sokqfilter(struct file *fp, struct knote *kn); 3783304Sphk 3793304Sphk/* 3803304Sphk * From uipc_socket and friends 3813304Sphk */ 38292719Salfredstruct sockaddr *dup_sockaddr(struct sockaddr *sa, int canwait); 38392719Salfredint sockargs(struct mbuf **mp, caddr_t buf, int buflen, int type); 38492719Salfredint getsockaddr(struct sockaddr **namp, caddr_t uaddr, size_t len); 38592719Salfredvoid sbappend(struct sockbuf *sb, struct mbuf *m); 38692719Salfredint sbappendaddr(struct sockbuf *sb, struct sockaddr *asa, 38792719Salfred struct mbuf *m0, struct mbuf *control); 38892719Salfredint sbappendcontrol(struct sockbuf *sb, struct mbuf *m0, 38992719Salfred struct mbuf *control); 39092719Salfredvoid sbappendrecord(struct sockbuf *sb, struct mbuf *m0); 39192719Salfredvoid sbcheck(struct sockbuf *sb); 39292719Salfredvoid sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n); 39319670Sbdestruct mbuf * 39492719Salfred sbcreatecontrol(caddr_t p, int size, int type, int level); 39592719Salfredvoid sbdrop(struct sockbuf *sb, int len); 39692719Salfredvoid sbdroprecord(struct sockbuf *sb); 39792719Salfredvoid sbflush(struct sockbuf *sb); 39892719Salfredvoid sbinsertoob(struct sockbuf *sb, struct mbuf *m0); 39992719Salfredvoid sbrelease(struct sockbuf *sb, struct socket *so); 40092719Salfredint sbreserve(struct sockbuf *sb, u_long cc, struct socket *so, 40193008Sbde struct thread *td); 40292719Salfredvoid sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb); 40392719Salfredint sbwait(struct sockbuf *sb); 40492719Salfredint sb_lock(struct sockbuf *sb); 40592719Salfredint soabort(struct socket *so); 40692719Salfredint soaccept(struct socket *so, struct sockaddr **nam); 40792719Salfredstruct socket *soalloc(int waitok); 40892719Salfredint sobind(struct socket *so, struct sockaddr *nam, struct thread *td); 40992719Salfredvoid socantrcvmore(struct socket *so); 41092719Salfredvoid socantsendmore(struct socket *so); 41192719Salfredint soclose(struct socket *so); 41292719Salfredint soconnect(struct socket *so, struct sockaddr *nam, struct thread *td); 41392719Salfredint soconnect2(struct socket *so1, struct socket *so2); 41492719Salfredint socreate(int dom, struct socket **aso, int type, int proto, 41592719Salfred struct ucred *cred, struct thread *td); 41692719Salfredint sodisconnect(struct socket *so); 41792719Salfredvoid sofree(struct socket *so); 41892719Salfredint sogetopt(struct socket *so, struct sockopt *sopt); 41992719Salfredvoid sohasoutofband(struct socket *so); 42092719Salfredvoid soisconnected(struct socket *so); 42195552Stanimuravoid soisconnected_locked(struct socket *so); 42292719Salfredvoid soisconnecting(struct socket *so); 42392719Salfredvoid soisdisconnected(struct socket *so); 42495552Stanimuravoid soisdisconnected_locked(struct socket *so); 42592719Salfredvoid soisdisconnecting(struct socket *so); 42692719Salfredint solisten(struct socket *so, int backlog, struct thread *td); 42714505Shsustruct socket * 42892719Salfred sonewconn(struct socket *head, int connstatus); 42993008Sbdeint sooptcopyin(struct sockopt *sopt, void *buf, size_t len, size_t minlen); 43092719Salfredint sooptcopyout(struct sockopt *sopt, void *buf, size_t len); 43153541Sshin 43253541Sshin/* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ 43392719Salfredint soopt_getm(struct sockopt *sopt, struct mbuf **mp); 43492719Salfredint soopt_mcopyin(struct sockopt *sopt, struct mbuf *m); 43592719Salfredint soopt_mcopyout(struct sockopt *sopt, struct mbuf *m); 43653541Sshin 43792719Salfredint sopoll(struct socket *so, int events, struct ucred *cred, 43893008Sbde struct thread *td); 43993008Sbdeint soreceive(struct socket *so, struct sockaddr **paddr, struct uio *uio, 44093008Sbde struct mbuf **mp0, struct mbuf **controlp, int *flagsp); 44192719Salfredint soreserve(struct socket *so, u_long sndcc, u_long rcvcc); 44292719Salfredvoid sorflush(struct socket *so); 44392719Salfredint sosend(struct socket *so, struct sockaddr *addr, struct uio *uio, 44493008Sbde struct mbuf *top, struct mbuf *control, int flags, 44593008Sbde struct thread *td); 44692719Salfredint sosetopt(struct socket *so, struct sockopt *sopt); 44792719Salfredint soshutdown(struct socket *so, int how); 44892719Salfredvoid sotoxsocket(struct socket *so, struct xsocket *xso); 44992719Salfredvoid sowakeup(struct socket *so, struct sockbuf *sb); 45031927Sbde 45161837Salfred/* accept filter functions */ 45292719Salfredint accept_filt_add(struct accept_filter *filt); 45392719Salfredint accept_filt_del(char *name); 45492719Salfredstruct accept_filter * accept_filt_get(char *name); 45561837Salfred#ifdef ACCEPT_FILTER_MOD 45692719Salfredint accept_filt_generic_mod_event(module_t mod, int event, void *data); 45765534SalfredSYSCTL_DECL(_net_inet_accf); 45861837Salfred#endif /* ACCEPT_FILTER_MOD */ 45961837Salfred 46092719Salfredint socheckuid(struct socket *so, uid_t uid); 46192719Salfredint socheckproc(struct socket *so, struct proc *p); 46284527Sps 46355205Speter#endif /* _KERNEL */ 4642165Spaul 46514505Shsu#endif /* !_SYS_SOCKETVAR_H_ */ 466