socketvar.h revision 121628
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 121628 2003-10-28 05:47:40Z sam $ 351541Srgrimes */ 361541Srgrimes 372165Spaul#ifndef _SYS_SOCKETVAR_H_ 382165Spaul#define _SYS_SOCKETVAR_H_ 392165Spaul 40101848Srwatson#include <sys/_label.h> /* for struct label */ 4115492Sbde#include <sys/queue.h> /* for TAILQ macros */ 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 5295552Stanimura/* 5395552Stanimura * List of locks: 5495552Stanimura * (c) const, inited in either socreate() or sonewconn() 5595552Stanimura * (m) sb_mtx mutex 5695552Stanimura * (mr) so_rcv.sb_mtx mutex 5797658Stanimura * (sg) sigio_lock sx 5897658Stanimura * (sh) sohead_lock sx 5995552Stanimura * 6097658Stanimura * Lock of so_rcv.sb_mtx can duplicate, provided that sohead_lock 6197658Stanimura * is exclusively locked. 6297658Stanimura * 6397658Stanimura * Brackets mean that this data is not protected yet. 6495552Stanimura */ 651541Srgrimesstruct socket { 6697658Stanimura int so_count; /* reference count */ 6797658Stanimura short so_type; /* generic type, see socket.h */ 6897658Stanimura short so_options; /* from socket call, see socket.h */ 6997658Stanimura short so_linger; /* time to linger while closing */ 7097658Stanimura short so_state; /* internal state flags SS_*, below */ 7198993Salfred void *so_pcb; /* protocol control block */ 7297658Stanimura struct protosw *so_proto; /* protocol handle */ 731541Srgrimes/* 7413765Smpp * Variables for connection queuing. 751541Srgrimes * Socket where accepts occur is so_head in all subsidiary sockets. 761541Srgrimes * If so_head is 0, socket is not related to an accept. 7778913Sjlemon * For head socket so_incomp queues partially completed connections, 7878913Sjlemon * while so_comp is a queue of connections ready to be accepted. 791541Srgrimes * If a connection is aborted and it has so_head set, then 8078913Sjlemon * it has to be pulled out of either so_incomp or so_comp. 811541Srgrimes * We allow connections to queue up based on current queue lengths 821541Srgrimes * and limit on number of queued connections for this socket. 831541Srgrimes */ 8497658Stanimura struct socket *so_head; /* back pointer to accept socket */ 8597658Stanimura TAILQ_HEAD(, socket) so_incomp; /* queue of partial unaccepted connections */ 8697658Stanimura TAILQ_HEAD(, socket) so_comp; /* queue of complete unaccepted connections */ 8797658Stanimura TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */ 8897658Stanimura short so_qlen; /* number of unaccepted connections */ 8997658Stanimura short so_incqlen; /* number of unaccepted incomplete 9018787Spst connections */ 9197658Stanimura short so_qlimit; /* max number queued connections */ 9297658Stanimura short so_timeo; /* connection timeout */ 9397658Stanimura u_short so_error; /* error affecting connection */ 9497658Stanimura struct sigio *so_sigio; /* [sg] information for async I/O or 9541087Struckman out of band data (SIGURG) */ 9697658Stanimura u_long so_oobmark; /* chars to oob mark */ 9797658Stanimura TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */ 981541Srgrimes/* 991541Srgrimes * Variables for socket buffering. 1001541Srgrimes */ 10183421Sobrien struct sockbuf { 102100591Sjdp struct selinfo sb_sel; /* process selecting read/write */ 103117708Srobert#define sb_startzero sb_mb 10497658Stanimura struct mbuf *sb_mb; /* the mbuf chain */ 105121628Ssam struct mbuf *sb_mbtail; /* the last mbuf in the chain */ 106121628Ssam struct mbuf *sb_lastrecord; /* first mbuf of last record in 107121628Ssam * socket buffer */ 108100591Sjdp u_int sb_cc; /* actual chars in buffer */ 109100591Sjdp u_int sb_hiwat; /* max actual char count */ 110100591Sjdp u_int sb_mbcnt; /* chars of mbufs used */ 111100591Sjdp u_int sb_mbmax; /* max chars of mbufs to use */ 112106313Skbyanc u_int sb_ctl; /* non-data chars in buffer */ 113100591Sjdp int sb_lowat; /* low water mark */ 114100591Sjdp int sb_timeo; /* timeout for read/write */ 11597658Stanimura short sb_flags; /* flags, see below */ 1161541Srgrimes } so_rcv, so_snd; 1171541Srgrimes#define SB_MAX (256*1024) /* default for max chars in sockbuf */ 1181541Srgrimes#define SB_LOCK 0x01 /* lock on data queue */ 1191541Srgrimes#define SB_WANT 0x02 /* someone is waiting to lock */ 1201541Srgrimes#define SB_WAIT 0x04 /* someone is waiting for data/space */ 1211541Srgrimes#define SB_SEL 0x08 /* someone is selecting */ 1221541Srgrimes#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 12336527Speter#define SB_UPCALL 0x20 /* someone wants an upcall */ 1241541Srgrimes#define SB_NOINTR 0x40 /* operations not interruptible */ 12555943Sjasone#define SB_AIO 0x80 /* AIO operations queued */ 12659288Sjlemon#define SB_KNOTE 0x100 /* kernel note attached */ 1271541Srgrimes 12897658Stanimura void (*so_upcall)(struct socket *, void *, int); 12997658Stanimura void *so_upcallarg; 13097658Stanimura struct ucred *so_cred; /* user credentials */ 131100989Srwatson struct label so_label; /* MAC label for socket */ 132100989Srwatson struct label so_peerlabel; /* cached MAC label for socket peer */ 13338482Swollman /* NB: generation count must not be first; easiest to make it last. */ 13497658Stanimura so_gen_t so_gencnt; /* generation count */ 13597658Stanimura void *so_emuldata; /* private data for emulators */ 13697658Stanimura struct so_accf { 13797658Stanimura struct accept_filter *so_accept_filter; 13897658Stanimura void *so_accept_filter_arg; /* saved filter args */ 13997658Stanimura char *so_accept_filter_str; /* saved user args */ 14097658Stanimura } *so_accf; 1411541Srgrimes}; 1421541Srgrimes 143121628Ssam#define SB_EMPTY_FIXUP(sb) do { \ 144121628Ssam if ((sb)->sb_mb == NULL) { \ 145121628Ssam (sb)->sb_mbtail = NULL; \ 146121628Ssam (sb)->sb_lastrecord = NULL; \ 147121628Ssam } \ 148121628Ssam} while (/*CONSTCOND*/0) 149121628Ssam 1501541Srgrimes/* 1511541Srgrimes * Socket state bits. 1521541Srgrimes */ 15314547Sdg#define SS_NOFDREF 0x0001 /* no file table ref any more */ 15414547Sdg#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ 15514547Sdg#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ 15614547Sdg#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ 15714547Sdg#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 15814547Sdg#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 15914547Sdg#define SS_RCVATMARK 0x0040 /* at mark on input */ 1601541Srgrimes 16114547Sdg#define SS_NBIO 0x0100 /* non-blocking ops */ 16214547Sdg#define SS_ASYNC 0x0200 /* async i/o notify */ 16314547Sdg#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ 1641541Srgrimes 16514547Sdg#define SS_INCOMP 0x0800 /* unaccepted, incomplete connection */ 16614547Sdg#define SS_COMP 0x1000 /* unaccepted, complete connection */ 16743196Sfenner#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ 1681541Srgrimes 16936079Swollman/* 17036079Swollman * Externalized form of struct socket used by the sysctl(3) interface. 17136079Swollman */ 17283045Sobrienstruct xsocket { 17336079Swollman size_t xso_len; /* length of this structure */ 17436079Swollman struct socket *xso_so; /* makes a convenient handle sometimes */ 17536079Swollman short so_type; 17636079Swollman short so_options; 17736079Swollman short so_linger; 17836079Swollman short so_state; 17936079Swollman caddr_t so_pcb; /* another convenient handle */ 18036079Swollman int xso_protocol; 18136079Swollman int xso_family; 18236079Swollman short so_qlen; 18336079Swollman short so_incqlen; 18436079Swollman short so_qlimit; 18536079Swollman short so_timeo; 18636079Swollman u_short so_error; 18736079Swollman pid_t so_pgid; 18836079Swollman u_long so_oobmark; 18983421Sobrien struct xsockbuf { 190100591Sjdp u_int sb_cc; 191100591Sjdp u_int sb_hiwat; 192100591Sjdp u_int sb_mbcnt; 193100591Sjdp u_int sb_mbmax; 194100591Sjdp int sb_lowat; 195100591Sjdp int sb_timeo; 19636079Swollman short sb_flags; 19736079Swollman } so_rcv, so_snd; 19836079Swollman uid_t so_uid; /* XXX */ 19936079Swollman}; 20014547Sdg 2011541Srgrimes/* 2021541Srgrimes * Macros for sockets and socket buffering. 2031541Srgrimes */ 2041541Srgrimes 2051541Srgrimes/* 20636527Speter * Do we need to notify the other side when I/O is possible? 20736527Speter */ 20855943Sjasone#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ 20959288Sjlemon SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) 21036527Speter 21136527Speter/* 2121541Srgrimes * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 2131541Srgrimes * This is problematical if the fields are unsigned, as the space might 2141541Srgrimes * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 2151541Srgrimes * overflow and return 0. Should use "lmin" but it doesn't exist now. 2161541Srgrimes */ 2171541Srgrimes#define sbspace(sb) \ 2181541Srgrimes ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ 2191541Srgrimes (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) 2201541Srgrimes 2211541Srgrimes/* do we have to send all at once on a socket? */ 2221541Srgrimes#define sosendallatonce(so) \ 2231541Srgrimes ((so)->so_proto->pr_flags & PR_ATOMIC) 2241541Srgrimes 2251541Srgrimes/* can we read something from so? */ 2261541Srgrimes#define soreadable(so) \ 2271541Srgrimes ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ 2281541Srgrimes ((so)->so_state & SS_CANTRCVMORE) || \ 22970536Sphk !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) 2301541Srgrimes 2311541Srgrimes/* can we write something to so? */ 2321541Srgrimes#define sowriteable(so) \ 2333304Sphk ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ 2341541Srgrimes (((so)->so_state&SS_ISCONNECTED) || \ 2353304Sphk ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ 2361541Srgrimes ((so)->so_state & SS_CANTSENDMORE) || \ 2371541Srgrimes (so)->so_error) 2381541Srgrimes 2391541Srgrimes/* adjust counters in sb reflecting allocation of m */ 2401541Srgrimes#define sballoc(sb, m) { \ 2411541Srgrimes (sb)->sb_cc += (m)->m_len; \ 242109098Stjr if ((m)->m_type != MT_DATA && (m)->m_type != MT_HEADER && \ 243109098Stjr (m)->m_type != MT_OOBDATA) \ 244106313Skbyanc (sb)->sb_ctl += (m)->m_len; \ 2451541Srgrimes (sb)->sb_mbcnt += MSIZE; \ 2461541Srgrimes if ((m)->m_flags & M_EXT) \ 2471541Srgrimes (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ 2481541Srgrimes} 2491541Srgrimes 2501541Srgrimes/* adjust counters in sb reflecting freeing of m */ 2511541Srgrimes#define sbfree(sb, m) { \ 2521541Srgrimes (sb)->sb_cc -= (m)->m_len; \ 253109098Stjr if ((m)->m_type != MT_DATA && (m)->m_type != MT_HEADER && \ 254109098Stjr (m)->m_type != MT_OOBDATA) \ 255106313Skbyanc (sb)->sb_ctl -= (m)->m_len; \ 2561541Srgrimes (sb)->sb_mbcnt -= MSIZE; \ 2571541Srgrimes if ((m)->m_flags & M_EXT) \ 2581541Srgrimes (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ 2591541Srgrimes} 2601541Srgrimes 2611541Srgrimes/* 2621541Srgrimes * Set lock on sockbuf sb; sleep if lock is already held. 2631541Srgrimes * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. 2641541Srgrimes * Returns error without lock if sleep is interrupted. 2651541Srgrimes */ 2661541Srgrimes#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ 267111119Simp (((wf) == M_WAITOK) ? sb_lock(sb) : EWOULDBLOCK) : \ 2681541Srgrimes ((sb)->sb_flags |= SB_LOCK), 0) 2691541Srgrimes 2701541Srgrimes/* release lock on sockbuf sb */ 2711541Srgrimes#define sbunlock(sb) { \ 2721541Srgrimes (sb)->sb_flags &= ~SB_LOCK; \ 2731541Srgrimes if ((sb)->sb_flags & SB_WANT) { \ 2741541Srgrimes (sb)->sb_flags &= ~SB_WANT; \ 275111748Sdes wakeup(&(sb)->sb_flags); \ 2761541Srgrimes } \ 2771541Srgrimes} 2781541Srgrimes 27986487Sdillon/* 28086487Sdillon * soref()/sorele() ref-count the socket structure. Note that you must 28186487Sdillon * still explicitly close the socket, but the last ref count will free 28286487Sdillon * the structure. 28386487Sdillon */ 28497658Stanimura#define soref(so) do { \ 28597658Stanimura ++(so)->so_count; \ 28686487Sdillon } while (0) 28786487Sdillon 28897658Stanimura#define sorele(so) do { \ 28989318Salfred if ((so)->so_count <= 0) \ 29097658Stanimura panic("sorele");\ 29197658Stanimura if (--(so)->so_count == 0)\ 29297658Stanimura sofree(so); \ 29386487Sdillon } while (0) 29486487Sdillon 29597658Stanimura#define sotryfree(so) do { \ 29689318Salfred if ((so)->so_count == 0) \ 29797658Stanimura sofree(so); \ 29886487Sdillon } while(0) 29986487Sdillon 30098385Stanimura#define sorwakeup(so) do { \ 30198385Stanimura if (sb_notify(&(so)->so_rcv)) \ 30298385Stanimura sowakeup((so), &(so)->so_rcv); \ 30398385Stanimura } while (0) 3041541Srgrimes 30598385Stanimura#define sowwakeup(so) do { \ 30698385Stanimura if (sb_notify(&(so)->so_snd)) \ 30798385Stanimura sowakeup((so), &(so)->so_snd); \ 30898385Stanimura } while (0) 3091541Srgrimes 31055205Speter#ifdef _KERNEL 31131927Sbde 31238482Swollman/* 31338482Swollman * Argument structure for sosetopt et seq. This is in the KERNEL 31438482Swollman * section because it will never be visible to user code. 31538482Swollman */ 31638482Swollmanenum sopt_dir { SOPT_GET, SOPT_SET }; 31738482Swollmanstruct sockopt { 31838482Swollman enum sopt_dir sopt_dir; /* is this a get or a set? */ 31938482Swollman int sopt_level; /* second arg of [gs]etsockopt */ 32038482Swollman int sopt_name; /* third arg of [gs]etsockopt */ 32138482Swollman void *sopt_val; /* fourth arg of [gs]etsockopt */ 32238482Swollman size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ 32395959Salfred struct thread *sopt_td; /* calling thread or null if kernel */ 32438482Swollman}; 32538482Swollman 32640931Sdgstruct sf_buf { 32760938Sjake SLIST_ENTRY(sf_buf) free_list; /* list of free buffer slots */ 32840931Sdg struct vm_page *m; /* currently mapped page */ 32940931Sdg vm_offset_t kva; /* va of mapping */ 33040931Sdg}; 33140931Sdg 33261837Salfredstruct accept_filter { 33361837Salfred char accf_name[16]; 33461837Salfred void (*accf_callback) 33592719Salfred (struct socket *so, void *arg, int waitflag); 33661837Salfred void * (*accf_create) 33792719Salfred (struct socket *so, char *arg); 33861837Salfred void (*accf_destroy) 33992719Salfred (struct socket *so); 34095959Salfred SLIST_ENTRY(accept_filter) accf_next; 34182656Sjlemon}; 34261837Salfred 34331927Sbde#ifdef MALLOC_DECLARE 34495959SalfredMALLOC_DECLARE(M_ACCF); 34531927SbdeMALLOC_DECLARE(M_PCB); 34631927SbdeMALLOC_DECLARE(M_SONAME); 34731927Sbde#endif 34831927Sbde 34995959Salfredextern int maxsockets; 3502112Swollmanextern u_long sb_max; 35195959Salfredextern struct uma_zone *socket_zone; 35236079Swollmanextern so_gen_t so_gencnt; 35314505Shsu 35415492Sbdestruct mbuf; 35515492Sbdestruct sockaddr; 35632995Sbdestruct ucred; 35732995Sbdestruct uio; 35815492Sbde 3591541Srgrimes/* 3603304Sphk * From uipc_socket and friends 3613304Sphk */ 36292719Salfredstruct sockaddr *dup_sockaddr(struct sockaddr *sa, int canwait); 36392719Salfredint sockargs(struct mbuf **mp, caddr_t buf, int buflen, int type); 36492719Salfredint getsockaddr(struct sockaddr **namp, caddr_t uaddr, size_t len); 36592719Salfredvoid sbappend(struct sockbuf *sb, struct mbuf *m); 366121628Ssamvoid sbappendstream(struct sockbuf *sb, struct mbuf *m); 36792719Salfredint sbappendaddr(struct sockbuf *sb, struct sockaddr *asa, 36892719Salfred struct mbuf *m0, struct mbuf *control); 36992719Salfredint sbappendcontrol(struct sockbuf *sb, struct mbuf *m0, 37092719Salfred struct mbuf *control); 37192719Salfredvoid sbappendrecord(struct sockbuf *sb, struct mbuf *m0); 37292719Salfredvoid sbcheck(struct sockbuf *sb); 37392719Salfredvoid sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n); 37419670Sbdestruct mbuf * 37592719Salfred sbcreatecontrol(caddr_t p, int size, int type, int level); 37692719Salfredvoid sbdrop(struct sockbuf *sb, int len); 37792719Salfredvoid sbdroprecord(struct sockbuf *sb); 37892719Salfredvoid sbflush(struct sockbuf *sb); 37992719Salfredvoid sbinsertoob(struct sockbuf *sb, struct mbuf *m0); 38092719Salfredvoid sbrelease(struct sockbuf *sb, struct socket *so); 38192719Salfredint sbreserve(struct sockbuf *sb, u_long cc, struct socket *so, 38293008Sbde struct thread *td); 38392719Salfredvoid sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb); 38492719Salfredint sbwait(struct sockbuf *sb); 385101842Sdgstruct sf_buf * 386112778Salc sf_buf_alloc(struct vm_page *m); 387101842Sdgvoid sf_buf_free(void *addr, void *args); 38892719Salfredint sb_lock(struct sockbuf *sb); 38992719Salfredint soabort(struct socket *so); 39092719Salfredint soaccept(struct socket *so, struct sockaddr **nam); 39195959Salfredint socheckuid(struct socket *so, uid_t uid); 39292719Salfredstruct socket *soalloc(int waitok); 39392719Salfredint sobind(struct socket *so, struct sockaddr *nam, struct thread *td); 39492719Salfredvoid socantrcvmore(struct socket *so); 39592719Salfredvoid socantsendmore(struct socket *so); 39692719Salfredint soclose(struct socket *so); 39792719Salfredint soconnect(struct socket *so, struct sockaddr *nam, struct thread *td); 39892719Salfredint soconnect2(struct socket *so1, struct socket *so2); 39998849Skenint socow_setup(struct mbuf *m0, struct uio *uio); 40092719Salfredint socreate(int dom, struct socket **aso, int type, int proto, 40192719Salfred struct ucred *cred, struct thread *td); 402106326Salcvoid sodealloc(struct socket *so); 40392719Salfredint sodisconnect(struct socket *so); 40492719Salfredvoid sofree(struct socket *so); 40592719Salfredint sogetopt(struct socket *so, struct sockopt *sopt); 40692719Salfredvoid sohasoutofband(struct socket *so); 40792719Salfredvoid soisconnected(struct socket *so); 40892719Salfredvoid soisconnecting(struct socket *so); 40992719Salfredvoid soisdisconnected(struct socket *so); 41092719Salfredvoid soisdisconnecting(struct socket *so); 41192719Salfredint solisten(struct socket *so, int backlog, struct thread *td); 41214505Shsustruct socket * 41392719Salfred sonewconn(struct socket *head, int connstatus); 41493008Sbdeint sooptcopyin(struct sockopt *sopt, void *buf, size_t len, size_t minlen); 415118453Shsuint sooptcopyout(struct sockopt *sopt, const void *buf, size_t len); 41653541Sshin 41753541Sshin/* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ 41892719Salfredint soopt_getm(struct sockopt *sopt, struct mbuf **mp); 41992719Salfredint soopt_mcopyin(struct sockopt *sopt, struct mbuf *m); 42092719Salfredint soopt_mcopyout(struct sockopt *sopt, struct mbuf *m); 42153541Sshin 422101983Srwatsonint sopoll(struct socket *so, int events, struct ucred *active_cred, 42393008Sbde struct thread *td); 42493008Sbdeint soreceive(struct socket *so, struct sockaddr **paddr, struct uio *uio, 42593008Sbde struct mbuf **mp0, struct mbuf **controlp, int *flagsp); 42692719Salfredint soreserve(struct socket *so, u_long sndcc, u_long rcvcc); 42792719Salfredvoid sorflush(struct socket *so); 42892719Salfredint sosend(struct socket *so, struct sockaddr *addr, struct uio *uio, 42993008Sbde struct mbuf *top, struct mbuf *control, int flags, 43093008Sbde struct thread *td); 43192719Salfredint sosetopt(struct socket *so, struct sockopt *sopt); 43292719Salfredint soshutdown(struct socket *so, int how); 43392719Salfredvoid sotoxsocket(struct socket *so, struct xsocket *xso); 43492719Salfredvoid sowakeup(struct socket *so, struct sockbuf *sb); 43531927Sbde 436121628Ssam#ifdef SOCKBUF_DEBUG 437121628Ssamvoid sblastrecordchk(struct sockbuf *, const char *, int); 438121628Ssam#define SBLASTRECORDCHK(sb) sblastrecordchk((sb), __FILE__, __LINE__) 439121628Ssam 440121628Ssamvoid sblastmbufchk(struct sockbuf *, const char *, int); 441121628Ssam#define SBLASTMBUFCHK(sb) sblastmbufchk((sb), __FILE__, __LINE__) 442121628Ssam#else 443121628Ssam#define SBLASTRECORDCHK(sb) /* nothing */ 444121628Ssam#define SBLASTMBUFCHK(sb) /* nothing */ 445121628Ssam#endif /* SOCKBUF_DEBUG */ 446121628Ssam 44795959Salfred/* 44895959Salfred * Accept filter functions (duh). 44995959Salfred */ 45092719Salfredint accept_filt_add(struct accept_filter *filt); 45192719Salfredint accept_filt_del(char *name); 45295959Salfredstruct accept_filter *accept_filt_get(char *name); 45361837Salfred#ifdef ACCEPT_FILTER_MOD 45495959Salfred#ifdef SYSCTL_DECL 45565534SalfredSYSCTL_DECL(_net_inet_accf); 45695959Salfred#endif 45795959Salfredint accept_filt_generic_mod_event(module_t mod, int event, void *data); 45895959Salfred#endif 45961837Salfred 46055205Speter#endif /* _KERNEL */ 4612165Spaul 46214505Shsu#endif /* !_SYS_SOCKETVAR_H_ */ 463