socketvar.h revision 130364
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 * 4. Neither the name of the University nor the names of its contributors 141541Srgrimes * may be used to endorse or promote products derived from this software 151541Srgrimes * without specific prior written permission. 161541Srgrimes * 171541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271541Srgrimes * SUCH DAMAGE. 281541Srgrimes * 2914505Shsu * @(#)socketvar.h 8.3 (Berkeley) 2/19/95 3050477Speter * $FreeBSD: head/sys/sys/socketvar.h 130364 2004-06-11 22:39:42Z rwatson $ 311541Srgrimes */ 321541Srgrimes 332165Spaul#ifndef _SYS_SOCKETVAR_H_ 342165Spaul#define _SYS_SOCKETVAR_H_ 352165Spaul 3615492Sbde#include <sys/queue.h> /* for TAILQ macros */ 3770834Swollman#include <sys/selinfo.h> /* for struct selinfo */ 381541Srgrimes 391541Srgrimes/* 401541Srgrimes * Kernel structure per socket. 411541Srgrimes * Contains send and receive buffer queues, 421541Srgrimes * handle on protocol and pointer to protocol 431541Srgrimes * private data and error information. 441541Srgrimes */ 4536079Swollmantypedef u_quad_t so_gen_t; 4636079Swollman 47129958Srwatson/*- 48129958Srwatson * Locking key to struct socket: 49129958Srwatson * (a) constant after allocation, no locking required. 50129958Srwatson * (b) locked by SOCK_LOCK(so). 51129958Srwatson * (c) locked by SOCKBUF_LOCK(&so->so_rcv). 52129958Srwatson * (d) locked by SOCKBUF_LOCK(&so->so_snd). 53129958Srwatson * (e) locked by ACCEPT_LOCK(). 54129958Srwatson * (f) not locked since integer reads/writes are atomic. 55129958Srwatson * (g) used only as a sleep/wakeup address, no value. 5695552Stanimura */ 571541Srgrimesstruct socket { 5897658Stanimura int so_count; /* reference count */ 59129958Srwatson short so_type; /* (a) generic type, see socket.h */ 6097658Stanimura short so_options; /* from socket call, see socket.h */ 6197658Stanimura short so_linger; /* time to linger while closing */ 62129958Srwatson short so_state; /* internal state flags SS_* */ 63129979Srwatson int so_qstate; /* (e) internal state flags SQ_* */ 6498993Salfred void *so_pcb; /* protocol control block */ 65129958Srwatson struct protosw *so_proto; /* (a) protocol handle */ 661541Srgrimes/* 6713765Smpp * Variables for connection queuing. 681541Srgrimes * Socket where accepts occur is so_head in all subsidiary sockets. 691541Srgrimes * If so_head is 0, socket is not related to an accept. 7078913Sjlemon * For head socket so_incomp queues partially completed connections, 7178913Sjlemon * while so_comp is a queue of connections ready to be accepted. 721541Srgrimes * If a connection is aborted and it has so_head set, then 7378913Sjlemon * it has to be pulled out of either so_incomp or so_comp. 741541Srgrimes * We allow connections to queue up based on current queue lengths 751541Srgrimes * and limit on number of queued connections for this socket. 761541Srgrimes */ 77129979Srwatson struct socket *so_head; /* (e) back pointer to accept socket */ 78129979Srwatson TAILQ_HEAD(, socket) so_incomp; /* (e) queue of partial unaccepted connections */ 79129979Srwatson TAILQ_HEAD(, socket) so_comp; /* (e) queue of complete unaccepted connections */ 80129979Srwatson TAILQ_ENTRY(socket) so_list; /* (e) list of unaccepted connections */ 81129979Srwatson short so_qlen; /* (e) number of unaccepted connections */ 82129979Srwatson short so_incqlen; /* (e) number of unaccepted incomplete 8318787Spst connections */ 84129979Srwatson short so_qlimit; /* (e) max number queued connections */ 8597658Stanimura short so_timeo; /* connection timeout */ 8697658Stanimura u_short so_error; /* error affecting connection */ 8797658Stanimura struct sigio *so_sigio; /* [sg] information for async I/O or 8841087Struckman out of band data (SIGURG) */ 8997658Stanimura u_long so_oobmark; /* chars to oob mark */ 9097658Stanimura TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */ 911541Srgrimes/* 921541Srgrimes * Variables for socket buffering. 931541Srgrimes */ 9483421Sobrien struct sockbuf { 95100591Sjdp struct selinfo sb_sel; /* process selecting read/write */ 96117708Srobert#define sb_startzero sb_mb 9797658Stanimura struct mbuf *sb_mb; /* the mbuf chain */ 98121628Ssam struct mbuf *sb_mbtail; /* the last mbuf in the chain */ 99121628Ssam struct mbuf *sb_lastrecord; /* first mbuf of last record in 100121628Ssam * socket buffer */ 101100591Sjdp u_int sb_cc; /* actual chars in buffer */ 102100591Sjdp u_int sb_hiwat; /* max actual char count */ 103100591Sjdp u_int sb_mbcnt; /* chars of mbufs used */ 104100591Sjdp u_int sb_mbmax; /* max chars of mbufs to use */ 105106313Skbyanc u_int sb_ctl; /* non-data chars in buffer */ 106100591Sjdp int sb_lowat; /* low water mark */ 107100591Sjdp int sb_timeo; /* timeout for read/write */ 10897658Stanimura short sb_flags; /* flags, see below */ 1091541Srgrimes } so_rcv, so_snd; 1101541Srgrimes#define SB_MAX (256*1024) /* default for max chars in sockbuf */ 1111541Srgrimes#define SB_LOCK 0x01 /* lock on data queue */ 1121541Srgrimes#define SB_WANT 0x02 /* someone is waiting to lock */ 1131541Srgrimes#define SB_WAIT 0x04 /* someone is waiting for data/space */ 1141541Srgrimes#define SB_SEL 0x08 /* someone is selecting */ 1151541Srgrimes#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 11636527Speter#define SB_UPCALL 0x20 /* someone wants an upcall */ 1171541Srgrimes#define SB_NOINTR 0x40 /* operations not interruptible */ 11855943Sjasone#define SB_AIO 0x80 /* AIO operations queued */ 11959288Sjlemon#define SB_KNOTE 0x100 /* kernel note attached */ 1201541Srgrimes 12197658Stanimura void (*so_upcall)(struct socket *, void *, int); 12297658Stanimura void *so_upcallarg; 12397658Stanimura struct ucred *so_cred; /* user credentials */ 124122524Srwatson struct label *so_label; /* MAC label for socket */ 125122524Srwatson struct label *so_peerlabel; /* cached MAC label for socket peer */ 12638482Swollman /* NB: generation count must not be first; easiest to make it last. */ 12797658Stanimura so_gen_t so_gencnt; /* generation count */ 12897658Stanimura void *so_emuldata; /* private data for emulators */ 12997658Stanimura struct so_accf { 13097658Stanimura struct accept_filter *so_accept_filter; 13197658Stanimura void *so_accept_filter_arg; /* saved filter args */ 13297658Stanimura char *so_accept_filter_str; /* saved user args */ 13397658Stanimura } *so_accf; 1341541Srgrimes}; 1351541Srgrimes 136121628Ssam#define SB_EMPTY_FIXUP(sb) do { \ 137121628Ssam if ((sb)->sb_mb == NULL) { \ 138121628Ssam (sb)->sb_mbtail = NULL; \ 139121628Ssam (sb)->sb_lastrecord = NULL; \ 140121628Ssam } \ 141121628Ssam} while (/*CONSTCOND*/0) 142121628Ssam 1431541Srgrimes/* 144129979Srwatson * Global accept mutex to serialize access to accept queues and 145129979Srwatson * fields associated with multiple sockets. This allows us to 146129979Srwatson * avoid defining a lock order between listen and accept sockets 147129979Srwatson * until such time as it proves to be a good idea. 148129979Srwatson */ 149129979Srwatsonextern struct mtx accept_mtx; 150130364Srwatson#define ACCEPT_LOCK() mtx_lock(&accept_mtx) 151130364Srwatson#define ACCEPT_UNLOCK() mtx_unlock(&accept_mtx) 152129979Srwatson 153129979Srwatson/* 1541541Srgrimes * Socket state bits. 1551541Srgrimes */ 15614547Sdg#define SS_NOFDREF 0x0001 /* no file table ref any more */ 15714547Sdg#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ 15814547Sdg#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ 15914547Sdg#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ 16014547Sdg#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 16114547Sdg#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 16214547Sdg#define SS_RCVATMARK 0x0040 /* at mark on input */ 1631541Srgrimes 16414547Sdg#define SS_NBIO 0x0100 /* non-blocking ops */ 16514547Sdg#define SS_ASYNC 0x0200 /* async i/o notify */ 16614547Sdg#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ 1671541Srgrimes 16843196Sfenner#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ 1691541Srgrimes 17036079Swollman/* 171129916Srwatson * Socket state bits stored in so_qstate. 172129916Srwatson */ 173129916Srwatson#define SQ_INCOMP 0x0800 /* unaccepted, incomplete connection */ 174129916Srwatson#define SQ_COMP 0x1000 /* unaccepted, complete connection */ 175129916Srwatson 176129916Srwatson/* 17736079Swollman * Externalized form of struct socket used by the sysctl(3) interface. 17836079Swollman */ 17983045Sobrienstruct xsocket { 18036079Swollman size_t xso_len; /* length of this structure */ 18136079Swollman struct socket *xso_so; /* makes a convenient handle sometimes */ 18236079Swollman short so_type; 18336079Swollman short so_options; 18436079Swollman short so_linger; 18536079Swollman short so_state; 18636079Swollman caddr_t so_pcb; /* another convenient handle */ 18736079Swollman int xso_protocol; 18836079Swollman int xso_family; 18936079Swollman short so_qlen; 19036079Swollman short so_incqlen; 19136079Swollman short so_qlimit; 19236079Swollman short so_timeo; 19336079Swollman u_short so_error; 19436079Swollman pid_t so_pgid; 19536079Swollman u_long so_oobmark; 19683421Sobrien struct xsockbuf { 197100591Sjdp u_int sb_cc; 198100591Sjdp u_int sb_hiwat; 199100591Sjdp u_int sb_mbcnt; 200100591Sjdp u_int sb_mbmax; 201100591Sjdp int sb_lowat; 202100591Sjdp int sb_timeo; 20336079Swollman short sb_flags; 20436079Swollman } so_rcv, so_snd; 20536079Swollman uid_t so_uid; /* XXX */ 20636079Swollman}; 20714547Sdg 2081541Srgrimes/* 2091541Srgrimes * Macros for sockets and socket buffering. 2101541Srgrimes */ 2111541Srgrimes 2121541Srgrimes/* 21336527Speter * Do we need to notify the other side when I/O is possible? 21436527Speter */ 21555943Sjasone#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ 21659288Sjlemon SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) 21736527Speter 21836527Speter/* 2191541Srgrimes * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 2201541Srgrimes * This is problematical if the fields are unsigned, as the space might 2211541Srgrimes * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 2221541Srgrimes * overflow and return 0. Should use "lmin" but it doesn't exist now. 2231541Srgrimes */ 2241541Srgrimes#define sbspace(sb) \ 2251541Srgrimes ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ 2261541Srgrimes (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) 2271541Srgrimes 2281541Srgrimes/* do we have to send all at once on a socket? */ 2291541Srgrimes#define sosendallatonce(so) \ 2301541Srgrimes ((so)->so_proto->pr_flags & PR_ATOMIC) 2311541Srgrimes 2321541Srgrimes/* can we read something from so? */ 2331541Srgrimes#define soreadable(so) \ 2341541Srgrimes ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ 2351541Srgrimes ((so)->so_state & SS_CANTRCVMORE) || \ 23670536Sphk !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) 2371541Srgrimes 2381541Srgrimes/* can we write something to so? */ 2391541Srgrimes#define sowriteable(so) \ 2403304Sphk ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ 2411541Srgrimes (((so)->so_state&SS_ISCONNECTED) || \ 2423304Sphk ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ 2431541Srgrimes ((so)->so_state & SS_CANTSENDMORE) || \ 2441541Srgrimes (so)->so_error) 2451541Srgrimes 2461541Srgrimes/* adjust counters in sb reflecting allocation of m */ 2471541Srgrimes#define sballoc(sb, m) { \ 2481541Srgrimes (sb)->sb_cc += (m)->m_len; \ 249109098Stjr if ((m)->m_type != MT_DATA && (m)->m_type != MT_HEADER && \ 250109098Stjr (m)->m_type != MT_OOBDATA) \ 251106313Skbyanc (sb)->sb_ctl += (m)->m_len; \ 2521541Srgrimes (sb)->sb_mbcnt += MSIZE; \ 2531541Srgrimes if ((m)->m_flags & M_EXT) \ 2541541Srgrimes (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ 2551541Srgrimes} 2561541Srgrimes 2571541Srgrimes/* adjust counters in sb reflecting freeing of m */ 2581541Srgrimes#define sbfree(sb, m) { \ 2591541Srgrimes (sb)->sb_cc -= (m)->m_len; \ 260109098Stjr if ((m)->m_type != MT_DATA && (m)->m_type != MT_HEADER && \ 261109098Stjr (m)->m_type != MT_OOBDATA) \ 262106313Skbyanc (sb)->sb_ctl -= (m)->m_len; \ 2631541Srgrimes (sb)->sb_mbcnt -= MSIZE; \ 2641541Srgrimes if ((m)->m_flags & M_EXT) \ 2651541Srgrimes (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ 2661541Srgrimes} 2671541Srgrimes 2681541Srgrimes/* 2691541Srgrimes * Set lock on sockbuf sb; sleep if lock is already held. 2701541Srgrimes * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. 2711541Srgrimes * Returns error without lock if sleep is interrupted. 2721541Srgrimes */ 2731541Srgrimes#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ 274111119Simp (((wf) == M_WAITOK) ? sb_lock(sb) : EWOULDBLOCK) : \ 2751541Srgrimes ((sb)->sb_flags |= SB_LOCK), 0) 2761541Srgrimes 2771541Srgrimes/* release lock on sockbuf sb */ 2781541Srgrimes#define sbunlock(sb) { \ 2791541Srgrimes (sb)->sb_flags &= ~SB_LOCK; \ 2801541Srgrimes if ((sb)->sb_flags & SB_WANT) { \ 2811541Srgrimes (sb)->sb_flags &= ~SB_WANT; \ 282111748Sdes wakeup(&(sb)->sb_flags); \ 2831541Srgrimes } \ 2841541Srgrimes} 2851541Srgrimes 28686487Sdillon/* 28786487Sdillon * soref()/sorele() ref-count the socket structure. Note that you must 28886487Sdillon * still explicitly close the socket, but the last ref count will free 28986487Sdillon * the structure. 29086487Sdillon */ 29197658Stanimura#define soref(so) do { \ 29297658Stanimura ++(so)->so_count; \ 29386487Sdillon } while (0) 29486487Sdillon 29597658Stanimura#define sorele(so) do { \ 29689318Salfred if ((so)->so_count <= 0) \ 29797658Stanimura panic("sorele");\ 29897658Stanimura if (--(so)->so_count == 0)\ 29997658Stanimura sofree(so); \ 30086487Sdillon } while (0) 30186487Sdillon 30297658Stanimura#define sotryfree(so) do { \ 30389318Salfred if ((so)->so_count == 0) \ 30497658Stanimura sofree(so); \ 30586487Sdillon } while(0) 30686487Sdillon 30798385Stanimura#define sorwakeup(so) do { \ 30898385Stanimura if (sb_notify(&(so)->so_rcv)) \ 30998385Stanimura sowakeup((so), &(so)->so_rcv); \ 31098385Stanimura } while (0) 3111541Srgrimes 31298385Stanimura#define sowwakeup(so) do { \ 31398385Stanimura if (sb_notify(&(so)->so_snd)) \ 31498385Stanimura sowakeup((so), &(so)->so_snd); \ 31598385Stanimura } while (0) 3161541Srgrimes 31755205Speter#ifdef _KERNEL 31831927Sbde 31938482Swollman/* 32038482Swollman * Argument structure for sosetopt et seq. This is in the KERNEL 32138482Swollman * section because it will never be visible to user code. 32238482Swollman */ 32338482Swollmanenum sopt_dir { SOPT_GET, SOPT_SET }; 32438482Swollmanstruct sockopt { 32538482Swollman enum sopt_dir sopt_dir; /* is this a get or a set? */ 32638482Swollman int sopt_level; /* second arg of [gs]etsockopt */ 32738482Swollman int sopt_name; /* third arg of [gs]etsockopt */ 32838482Swollman void *sopt_val; /* fourth arg of [gs]etsockopt */ 32938482Swollman size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ 33095959Salfred struct thread *sopt_td; /* calling thread or null if kernel */ 33138482Swollman}; 33238482Swollman 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); 34195959Salfred SLIST_ENTRY(accept_filter) accf_next; 34282656Sjlemon}; 34361837Salfred 34431927Sbde#ifdef MALLOC_DECLARE 34595959SalfredMALLOC_DECLARE(M_ACCF); 34631927SbdeMALLOC_DECLARE(M_PCB); 34731927SbdeMALLOC_DECLARE(M_SONAME); 34831927Sbde#endif 34931927Sbde 35095959Salfredextern int maxsockets; 3512112Swollmanextern u_long sb_max; 35295959Salfredextern struct uma_zone *socket_zone; 35336079Swollmanextern so_gen_t so_gencnt; 35414505Shsu 35515492Sbdestruct mbuf; 35615492Sbdestruct sockaddr; 35732995Sbdestruct ucred; 35832995Sbdestruct uio; 35915492Sbde 3601541Srgrimes/* 3613304Sphk * From uipc_socket and friends 3623304Sphk */ 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); 367130050Srwatsonint sbappendaddr(struct sockbuf *sb, const 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); 38592719Salfredint sb_lock(struct sockbuf *sb); 38692719Salfredint soabort(struct socket *so); 38792719Salfredint soaccept(struct socket *so, struct sockaddr **nam); 388126411Srwatsonstruct socket *soalloc(int mflags); 38995959Salfredint socheckuid(struct socket *so, uid_t uid); 39092719Salfredint sobind(struct socket *so, struct sockaddr *nam, struct thread *td); 39192719Salfredvoid socantrcvmore(struct socket *so); 39292719Salfredvoid socantsendmore(struct socket *so); 39392719Salfredint soclose(struct socket *so); 39492719Salfredint soconnect(struct socket *so, struct sockaddr *nam, struct thread *td); 39592719Salfredint soconnect2(struct socket *so1, struct socket *so2); 39698849Skenint socow_setup(struct mbuf *m0, struct uio *uio); 39792719Salfredint socreate(int dom, struct socket **aso, int type, int proto, 39892719Salfred struct ucred *cred, struct thread *td); 399106326Salcvoid sodealloc(struct socket *so); 40092719Salfredint sodisconnect(struct socket *so); 401126425Srwatsonstruct sockaddr *sodupsockaddr(const struct sockaddr *sa, int mflags); 40292719Salfredvoid sofree(struct socket *so); 40392719Salfredint sogetopt(struct socket *so, struct sockopt *sopt); 40492719Salfredvoid sohasoutofband(struct socket *so); 40592719Salfredvoid soisconnected(struct socket *so); 40692719Salfredvoid soisconnecting(struct socket *so); 40792719Salfredvoid soisdisconnected(struct socket *so); 40892719Salfredvoid soisdisconnecting(struct socket *so); 40992719Salfredint solisten(struct socket *so, int backlog, struct thread *td); 41014505Shsustruct socket * 41192719Salfred sonewconn(struct socket *head, int connstatus); 41293008Sbdeint sooptcopyin(struct sockopt *sopt, void *buf, size_t len, size_t minlen); 413118453Shsuint sooptcopyout(struct sockopt *sopt, const void *buf, size_t len); 41453541Sshin 41553541Sshin/* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ 41692719Salfredint soopt_getm(struct sockopt *sopt, struct mbuf **mp); 41792719Salfredint soopt_mcopyin(struct sockopt *sopt, struct mbuf *m); 41892719Salfredint soopt_mcopyout(struct sockopt *sopt, struct mbuf *m); 41953541Sshin 420101983Srwatsonint sopoll(struct socket *so, int events, struct ucred *active_cred, 42193008Sbde struct thread *td); 42293008Sbdeint soreceive(struct socket *so, struct sockaddr **paddr, struct uio *uio, 42393008Sbde struct mbuf **mp0, struct mbuf **controlp, int *flagsp); 42492719Salfredint soreserve(struct socket *so, u_long sndcc, u_long rcvcc); 42592719Salfredvoid sorflush(struct socket *so); 42692719Salfredint sosend(struct socket *so, struct sockaddr *addr, struct uio *uio, 42793008Sbde struct mbuf *top, struct mbuf *control, int flags, 42893008Sbde struct thread *td); 42992719Salfredint sosetopt(struct socket *so, struct sockopt *sopt); 43092719Salfredint soshutdown(struct socket *so, int how); 43192719Salfredvoid sotoxsocket(struct socket *so, struct xsocket *xso); 43292719Salfredvoid sowakeup(struct socket *so, struct sockbuf *sb); 43331927Sbde 434121628Ssam#ifdef SOCKBUF_DEBUG 435121628Ssamvoid sblastrecordchk(struct sockbuf *, const char *, int); 436121628Ssam#define SBLASTRECORDCHK(sb) sblastrecordchk((sb), __FILE__, __LINE__) 437121628Ssam 438121628Ssamvoid sblastmbufchk(struct sockbuf *, const char *, int); 439121628Ssam#define SBLASTMBUFCHK(sb) sblastmbufchk((sb), __FILE__, __LINE__) 440121628Ssam#else 441121628Ssam#define SBLASTRECORDCHK(sb) /* nothing */ 442121628Ssam#define SBLASTMBUFCHK(sb) /* nothing */ 443121628Ssam#endif /* SOCKBUF_DEBUG */ 444121628Ssam 44595959Salfred/* 44695959Salfred * Accept filter functions (duh). 44795959Salfred */ 44892719Salfredint accept_filt_add(struct accept_filter *filt); 44992719Salfredint accept_filt_del(char *name); 45095959Salfredstruct accept_filter *accept_filt_get(char *name); 45161837Salfred#ifdef ACCEPT_FILTER_MOD 45295959Salfred#ifdef SYSCTL_DECL 45365534SalfredSYSCTL_DECL(_net_inet_accf); 45495959Salfred#endif 45595959Salfredint accept_filt_generic_mod_event(module_t mod, int event, void *data); 45695959Salfred#endif 45761837Salfred 45855205Speter#endif /* _KERNEL */ 4592165Spaul 46014505Shsu#endif /* !_SYS_SOCKETVAR_H_ */ 461