socketvar.h revision 118453
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 118453 2003-08-05 00:27:54Z hsu $ 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 */ 105100591Sjdp u_int sb_cc; /* actual chars in buffer */ 106100591Sjdp u_int sb_hiwat; /* max actual char count */ 107100591Sjdp u_int sb_mbcnt; /* chars of mbufs used */ 108100591Sjdp u_int sb_mbmax; /* max chars of mbufs to use */ 109106313Skbyanc u_int sb_ctl; /* non-data chars in buffer */ 110100591Sjdp int sb_lowat; /* low water mark */ 111100591Sjdp int sb_timeo; /* timeout for read/write */ 11297658Stanimura short sb_flags; /* flags, see below */ 1131541Srgrimes } so_rcv, so_snd; 1141541Srgrimes#define SB_MAX (256*1024) /* default for max chars in sockbuf */ 1151541Srgrimes#define SB_LOCK 0x01 /* lock on data queue */ 1161541Srgrimes#define SB_WANT 0x02 /* someone is waiting to lock */ 1171541Srgrimes#define SB_WAIT 0x04 /* someone is waiting for data/space */ 1181541Srgrimes#define SB_SEL 0x08 /* someone is selecting */ 1191541Srgrimes#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 12036527Speter#define SB_UPCALL 0x20 /* someone wants an upcall */ 1211541Srgrimes#define SB_NOINTR 0x40 /* operations not interruptible */ 12255943Sjasone#define SB_AIO 0x80 /* AIO operations queued */ 12359288Sjlemon#define SB_KNOTE 0x100 /* kernel note attached */ 1241541Srgrimes 12597658Stanimura void (*so_upcall)(struct socket *, void *, int); 12697658Stanimura void *so_upcallarg; 12797658Stanimura struct ucred *so_cred; /* user credentials */ 128100989Srwatson struct label so_label; /* MAC label for socket */ 129100989Srwatson struct label so_peerlabel; /* cached MAC label for socket peer */ 13038482Swollman /* NB: generation count must not be first; easiest to make it last. */ 13197658Stanimura so_gen_t so_gencnt; /* generation count */ 13297658Stanimura void *so_emuldata; /* private data for emulators */ 13397658Stanimura struct so_accf { 13497658Stanimura struct accept_filter *so_accept_filter; 13597658Stanimura void *so_accept_filter_arg; /* saved filter args */ 13697658Stanimura char *so_accept_filter_str; /* saved user args */ 13797658Stanimura } *so_accf; 1381541Srgrimes}; 1391541Srgrimes 1401541Srgrimes/* 1411541Srgrimes * Socket state bits. 1421541Srgrimes */ 14314547Sdg#define SS_NOFDREF 0x0001 /* no file table ref any more */ 14414547Sdg#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ 14514547Sdg#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ 14614547Sdg#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ 14714547Sdg#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 14814547Sdg#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 14914547Sdg#define SS_RCVATMARK 0x0040 /* at mark on input */ 1501541Srgrimes 15114547Sdg#define SS_NBIO 0x0100 /* non-blocking ops */ 15214547Sdg#define SS_ASYNC 0x0200 /* async i/o notify */ 15314547Sdg#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ 1541541Srgrimes 15514547Sdg#define SS_INCOMP 0x0800 /* unaccepted, incomplete connection */ 15614547Sdg#define SS_COMP 0x1000 /* unaccepted, complete connection */ 15743196Sfenner#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ 1581541Srgrimes 15936079Swollman/* 16036079Swollman * Externalized form of struct socket used by the sysctl(3) interface. 16136079Swollman */ 16283045Sobrienstruct xsocket { 16336079Swollman size_t xso_len; /* length of this structure */ 16436079Swollman struct socket *xso_so; /* makes a convenient handle sometimes */ 16536079Swollman short so_type; 16636079Swollman short so_options; 16736079Swollman short so_linger; 16836079Swollman short so_state; 16936079Swollman caddr_t so_pcb; /* another convenient handle */ 17036079Swollman int xso_protocol; 17136079Swollman int xso_family; 17236079Swollman short so_qlen; 17336079Swollman short so_incqlen; 17436079Swollman short so_qlimit; 17536079Swollman short so_timeo; 17636079Swollman u_short so_error; 17736079Swollman pid_t so_pgid; 17836079Swollman u_long so_oobmark; 17983421Sobrien struct xsockbuf { 180100591Sjdp u_int sb_cc; 181100591Sjdp u_int sb_hiwat; 182100591Sjdp u_int sb_mbcnt; 183100591Sjdp u_int sb_mbmax; 184100591Sjdp int sb_lowat; 185100591Sjdp int sb_timeo; 18636079Swollman short sb_flags; 18736079Swollman } so_rcv, so_snd; 18836079Swollman uid_t so_uid; /* XXX */ 18936079Swollman}; 19014547Sdg 1911541Srgrimes/* 1921541Srgrimes * Macros for sockets and socket buffering. 1931541Srgrimes */ 1941541Srgrimes 1951541Srgrimes/* 19636527Speter * Do we need to notify the other side when I/O is possible? 19736527Speter */ 19855943Sjasone#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ 19959288Sjlemon SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) 20036527Speter 20136527Speter/* 2021541Srgrimes * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 2031541Srgrimes * This is problematical if the fields are unsigned, as the space might 2041541Srgrimes * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 2051541Srgrimes * overflow and return 0. Should use "lmin" but it doesn't exist now. 2061541Srgrimes */ 2071541Srgrimes#define sbspace(sb) \ 2081541Srgrimes ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ 2091541Srgrimes (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) 2101541Srgrimes 2111541Srgrimes/* do we have to send all at once on a socket? */ 2121541Srgrimes#define sosendallatonce(so) \ 2131541Srgrimes ((so)->so_proto->pr_flags & PR_ATOMIC) 2141541Srgrimes 2151541Srgrimes/* can we read something from so? */ 2161541Srgrimes#define soreadable(so) \ 2171541Srgrimes ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ 2181541Srgrimes ((so)->so_state & SS_CANTRCVMORE) || \ 21970536Sphk !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) 2201541Srgrimes 2211541Srgrimes/* can we write something to so? */ 2221541Srgrimes#define sowriteable(so) \ 2233304Sphk ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ 2241541Srgrimes (((so)->so_state&SS_ISCONNECTED) || \ 2253304Sphk ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ 2261541Srgrimes ((so)->so_state & SS_CANTSENDMORE) || \ 2271541Srgrimes (so)->so_error) 2281541Srgrimes 2291541Srgrimes/* adjust counters in sb reflecting allocation of m */ 2301541Srgrimes#define sballoc(sb, m) { \ 2311541Srgrimes (sb)->sb_cc += (m)->m_len; \ 232109098Stjr if ((m)->m_type != MT_DATA && (m)->m_type != MT_HEADER && \ 233109098Stjr (m)->m_type != MT_OOBDATA) \ 234106313Skbyanc (sb)->sb_ctl += (m)->m_len; \ 2351541Srgrimes (sb)->sb_mbcnt += MSIZE; \ 2361541Srgrimes if ((m)->m_flags & M_EXT) \ 2371541Srgrimes (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ 2381541Srgrimes} 2391541Srgrimes 2401541Srgrimes/* adjust counters in sb reflecting freeing of m */ 2411541Srgrimes#define sbfree(sb, m) { \ 2421541Srgrimes (sb)->sb_cc -= (m)->m_len; \ 243109098Stjr if ((m)->m_type != MT_DATA && (m)->m_type != MT_HEADER && \ 244109098Stjr (m)->m_type != MT_OOBDATA) \ 245106313Skbyanc (sb)->sb_ctl -= (m)->m_len; \ 2461541Srgrimes (sb)->sb_mbcnt -= MSIZE; \ 2471541Srgrimes if ((m)->m_flags & M_EXT) \ 2481541Srgrimes (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ 2491541Srgrimes} 2501541Srgrimes 2511541Srgrimes/* 2521541Srgrimes * Set lock on sockbuf sb; sleep if lock is already held. 2531541Srgrimes * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. 2541541Srgrimes * Returns error without lock if sleep is interrupted. 2551541Srgrimes */ 2561541Srgrimes#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ 257111119Simp (((wf) == M_WAITOK) ? sb_lock(sb) : EWOULDBLOCK) : \ 2581541Srgrimes ((sb)->sb_flags |= SB_LOCK), 0) 2591541Srgrimes 2601541Srgrimes/* release lock on sockbuf sb */ 2611541Srgrimes#define sbunlock(sb) { \ 2621541Srgrimes (sb)->sb_flags &= ~SB_LOCK; \ 2631541Srgrimes if ((sb)->sb_flags & SB_WANT) { \ 2641541Srgrimes (sb)->sb_flags &= ~SB_WANT; \ 265111748Sdes wakeup(&(sb)->sb_flags); \ 2661541Srgrimes } \ 2671541Srgrimes} 2681541Srgrimes 26986487Sdillon/* 27086487Sdillon * soref()/sorele() ref-count the socket structure. Note that you must 27186487Sdillon * still explicitly close the socket, but the last ref count will free 27286487Sdillon * the structure. 27386487Sdillon */ 27497658Stanimura#define soref(so) do { \ 27597658Stanimura ++(so)->so_count; \ 27686487Sdillon } while (0) 27786487Sdillon 27897658Stanimura#define sorele(so) do { \ 27989318Salfred if ((so)->so_count <= 0) \ 28097658Stanimura panic("sorele");\ 28197658Stanimura if (--(so)->so_count == 0)\ 28297658Stanimura sofree(so); \ 28386487Sdillon } while (0) 28486487Sdillon 28597658Stanimura#define sotryfree(so) do { \ 28689318Salfred if ((so)->so_count == 0) \ 28797658Stanimura sofree(so); \ 28886487Sdillon } while(0) 28986487Sdillon 29098385Stanimura#define sorwakeup(so) do { \ 29198385Stanimura if (sb_notify(&(so)->so_rcv)) \ 29298385Stanimura sowakeup((so), &(so)->so_rcv); \ 29398385Stanimura } while (0) 2941541Srgrimes 29598385Stanimura#define sowwakeup(so) do { \ 29698385Stanimura if (sb_notify(&(so)->so_snd)) \ 29798385Stanimura sowakeup((so), &(so)->so_snd); \ 29898385Stanimura } while (0) 2991541Srgrimes 30055205Speter#ifdef _KERNEL 30131927Sbde 30238482Swollman/* 30338482Swollman * Argument structure for sosetopt et seq. This is in the KERNEL 30438482Swollman * section because it will never be visible to user code. 30538482Swollman */ 30638482Swollmanenum sopt_dir { SOPT_GET, SOPT_SET }; 30738482Swollmanstruct sockopt { 30838482Swollman enum sopt_dir sopt_dir; /* is this a get or a set? */ 30938482Swollman int sopt_level; /* second arg of [gs]etsockopt */ 31038482Swollman int sopt_name; /* third arg of [gs]etsockopt */ 31138482Swollman void *sopt_val; /* fourth arg of [gs]etsockopt */ 31238482Swollman size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ 31395959Salfred struct thread *sopt_td; /* calling thread or null if kernel */ 31438482Swollman}; 31538482Swollman 31640931Sdgstruct sf_buf { 31760938Sjake SLIST_ENTRY(sf_buf) free_list; /* list of free buffer slots */ 31840931Sdg struct vm_page *m; /* currently mapped page */ 31940931Sdg vm_offset_t kva; /* va of mapping */ 32040931Sdg}; 32140931Sdg 32261837Salfredstruct accept_filter { 32361837Salfred char accf_name[16]; 32461837Salfred void (*accf_callback) 32592719Salfred (struct socket *so, void *arg, int waitflag); 32661837Salfred void * (*accf_create) 32792719Salfred (struct socket *so, char *arg); 32861837Salfred void (*accf_destroy) 32992719Salfred (struct socket *so); 33095959Salfred SLIST_ENTRY(accept_filter) accf_next; 33182656Sjlemon}; 33261837Salfred 33331927Sbde#ifdef MALLOC_DECLARE 33495959SalfredMALLOC_DECLARE(M_ACCF); 33531927SbdeMALLOC_DECLARE(M_PCB); 33631927SbdeMALLOC_DECLARE(M_SONAME); 33731927Sbde#endif 33831927Sbde 33995959Salfredextern int maxsockets; 3402112Swollmanextern u_long sb_max; 34195959Salfredextern struct uma_zone *socket_zone; 34236079Swollmanextern so_gen_t so_gencnt; 34314505Shsu 34415492Sbdestruct mbuf; 34515492Sbdestruct sockaddr; 34632995Sbdestruct ucred; 34732995Sbdestruct uio; 34815492Sbde 3491541Srgrimes/* 3503304Sphk * From uipc_socket and friends 3513304Sphk */ 35292719Salfredstruct sockaddr *dup_sockaddr(struct sockaddr *sa, int canwait); 35392719Salfredint sockargs(struct mbuf **mp, caddr_t buf, int buflen, int type); 35492719Salfredint getsockaddr(struct sockaddr **namp, caddr_t uaddr, size_t len); 35592719Salfredvoid sbappend(struct sockbuf *sb, struct mbuf *m); 35692719Salfredint sbappendaddr(struct sockbuf *sb, struct sockaddr *asa, 35792719Salfred struct mbuf *m0, struct mbuf *control); 35892719Salfredint sbappendcontrol(struct sockbuf *sb, struct mbuf *m0, 35992719Salfred struct mbuf *control); 36092719Salfredvoid sbappendrecord(struct sockbuf *sb, struct mbuf *m0); 36192719Salfredvoid sbcheck(struct sockbuf *sb); 36292719Salfredvoid sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n); 36319670Sbdestruct mbuf * 36492719Salfred sbcreatecontrol(caddr_t p, int size, int type, int level); 36592719Salfredvoid sbdrop(struct sockbuf *sb, int len); 36692719Salfredvoid sbdroprecord(struct sockbuf *sb); 36792719Salfredvoid sbflush(struct sockbuf *sb); 36892719Salfredvoid sbinsertoob(struct sockbuf *sb, struct mbuf *m0); 36992719Salfredvoid sbrelease(struct sockbuf *sb, struct socket *so); 37092719Salfredint sbreserve(struct sockbuf *sb, u_long cc, struct socket *so, 37193008Sbde struct thread *td); 37292719Salfredvoid sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb); 37392719Salfredint sbwait(struct sockbuf *sb); 374101842Sdgstruct sf_buf * 375112778Salc sf_buf_alloc(struct vm_page *m); 376101842Sdgvoid sf_buf_free(void *addr, void *args); 37792719Salfredint sb_lock(struct sockbuf *sb); 37892719Salfredint soabort(struct socket *so); 37992719Salfredint soaccept(struct socket *so, struct sockaddr **nam); 38095959Salfredint socheckuid(struct socket *so, uid_t uid); 38192719Salfredstruct socket *soalloc(int waitok); 38292719Salfredint sobind(struct socket *so, struct sockaddr *nam, struct thread *td); 38392719Salfredvoid socantrcvmore(struct socket *so); 38492719Salfredvoid socantsendmore(struct socket *so); 38592719Salfredint soclose(struct socket *so); 38692719Salfredint soconnect(struct socket *so, struct sockaddr *nam, struct thread *td); 38792719Salfredint soconnect2(struct socket *so1, struct socket *so2); 38898849Skenint socow_setup(struct mbuf *m0, struct uio *uio); 38992719Salfredint socreate(int dom, struct socket **aso, int type, int proto, 39092719Salfred struct ucred *cred, struct thread *td); 391106326Salcvoid sodealloc(struct socket *so); 39292719Salfredint sodisconnect(struct socket *so); 39392719Salfredvoid sofree(struct socket *so); 39492719Salfredint sogetopt(struct socket *so, struct sockopt *sopt); 39592719Salfredvoid sohasoutofband(struct socket *so); 39692719Salfredvoid soisconnected(struct socket *so); 39792719Salfredvoid soisconnecting(struct socket *so); 39892719Salfredvoid soisdisconnected(struct socket *so); 39992719Salfredvoid soisdisconnecting(struct socket *so); 40092719Salfredint solisten(struct socket *so, int backlog, struct thread *td); 40114505Shsustruct socket * 40292719Salfred sonewconn(struct socket *head, int connstatus); 40393008Sbdeint sooptcopyin(struct sockopt *sopt, void *buf, size_t len, size_t minlen); 404118453Shsuint sooptcopyout(struct sockopt *sopt, const void *buf, size_t len); 40553541Sshin 40653541Sshin/* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ 40792719Salfredint soopt_getm(struct sockopt *sopt, struct mbuf **mp); 40892719Salfredint soopt_mcopyin(struct sockopt *sopt, struct mbuf *m); 40992719Salfredint soopt_mcopyout(struct sockopt *sopt, struct mbuf *m); 41053541Sshin 411101983Srwatsonint sopoll(struct socket *so, int events, struct ucred *active_cred, 41293008Sbde struct thread *td); 41393008Sbdeint soreceive(struct socket *so, struct sockaddr **paddr, struct uio *uio, 41493008Sbde struct mbuf **mp0, struct mbuf **controlp, int *flagsp); 41592719Salfredint soreserve(struct socket *so, u_long sndcc, u_long rcvcc); 41692719Salfredvoid sorflush(struct socket *so); 41792719Salfredint sosend(struct socket *so, struct sockaddr *addr, struct uio *uio, 41893008Sbde struct mbuf *top, struct mbuf *control, int flags, 41993008Sbde struct thread *td); 42092719Salfredint sosetopt(struct socket *so, struct sockopt *sopt); 42192719Salfredint soshutdown(struct socket *so, int how); 42292719Salfredvoid sotoxsocket(struct socket *so, struct xsocket *xso); 42392719Salfredvoid sowakeup(struct socket *so, struct sockbuf *sb); 42431927Sbde 42595959Salfred/* 42695959Salfred * Accept filter functions (duh). 42795959Salfred */ 42892719Salfredint accept_filt_add(struct accept_filter *filt); 42992719Salfredint accept_filt_del(char *name); 43095959Salfredstruct accept_filter *accept_filt_get(char *name); 43161837Salfred#ifdef ACCEPT_FILTER_MOD 43295959Salfred#ifdef SYSCTL_DECL 43365534SalfredSYSCTL_DECL(_net_inet_accf); 43495959Salfred#endif 43595959Salfredint accept_filt_generic_mod_event(module_t mod, int event, void *data); 43695959Salfred#endif 43761837Salfred 43855205Speter#endif /* _KERNEL */ 4392165Spaul 44014505Shsu#endif /* !_SYS_SOCKETVAR_H_ */ 441