socketvar.h revision 130383
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 130383 2004-06-12 18:37:29Z 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 */ 38130380Srwatson#include <sys/_lock.h> 39130380Srwatson#include <sys/_mutex.h> 401541Srgrimes 411541Srgrimes/* 421541Srgrimes * Kernel structure per socket. 431541Srgrimes * Contains send and receive buffer queues, 441541Srgrimes * handle on protocol and pointer to protocol 451541Srgrimes * private data and error information. 461541Srgrimes */ 4736079Swollmantypedef u_quad_t so_gen_t; 4836079Swollman 49129958Srwatson/*- 50129958Srwatson * Locking key to struct socket: 51129958Srwatson * (a) constant after allocation, no locking required. 52129958Srwatson * (b) locked by SOCK_LOCK(so). 53129958Srwatson * (c) locked by SOCKBUF_LOCK(&so->so_rcv). 54129958Srwatson * (d) locked by SOCKBUF_LOCK(&so->so_snd). 55129958Srwatson * (e) locked by ACCEPT_LOCK(). 56129958Srwatson * (f) not locked since integer reads/writes are atomic. 57129958Srwatson * (g) used only as a sleep/wakeup address, no value. 5895552Stanimura */ 591541Srgrimesstruct socket { 6097658Stanimura int so_count; /* reference count */ 61129958Srwatson short so_type; /* (a) generic type, see socket.h */ 6297658Stanimura short so_options; /* from socket call, see socket.h */ 6397658Stanimura short so_linger; /* time to linger while closing */ 64129958Srwatson short so_state; /* internal state flags SS_* */ 65129979Srwatson int so_qstate; /* (e) internal state flags SQ_* */ 6698993Salfred void *so_pcb; /* protocol control block */ 67129958Srwatson struct protosw *so_proto; /* (a) protocol handle */ 681541Srgrimes/* 6913765Smpp * Variables for connection queuing. 701541Srgrimes * Socket where accepts occur is so_head in all subsidiary sockets. 711541Srgrimes * If so_head is 0, socket is not related to an accept. 7278913Sjlemon * For head socket so_incomp queues partially completed connections, 7378913Sjlemon * while so_comp is a queue of connections ready to be accepted. 741541Srgrimes * If a connection is aborted and it has so_head set, then 7578913Sjlemon * it has to be pulled out of either so_incomp or so_comp. 761541Srgrimes * We allow connections to queue up based on current queue lengths 771541Srgrimes * and limit on number of queued connections for this socket. 781541Srgrimes */ 79129979Srwatson struct socket *so_head; /* (e) back pointer to accept socket */ 80129979Srwatson TAILQ_HEAD(, socket) so_incomp; /* (e) queue of partial unaccepted connections */ 81129979Srwatson TAILQ_HEAD(, socket) so_comp; /* (e) queue of complete unaccepted connections */ 82129979Srwatson TAILQ_ENTRY(socket) so_list; /* (e) list of unaccepted connections */ 83129979Srwatson short so_qlen; /* (e) number of unaccepted connections */ 84129979Srwatson short so_incqlen; /* (e) number of unaccepted incomplete 8518787Spst connections */ 86129979Srwatson short so_qlimit; /* (e) max number queued connections */ 8797658Stanimura short so_timeo; /* connection timeout */ 8897658Stanimura u_short so_error; /* error affecting connection */ 8997658Stanimura struct sigio *so_sigio; /* [sg] information for async I/O or 9041087Struckman out of band data (SIGURG) */ 9197658Stanimura u_long so_oobmark; /* chars to oob mark */ 9297658Stanimura TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */ 931541Srgrimes/* 941541Srgrimes * Variables for socket buffering. 951541Srgrimes */ 9683421Sobrien struct sockbuf { 97100591Sjdp struct selinfo sb_sel; /* process selecting read/write */ 98130380Srwatson struct mtx sb_mtx; /* sockbuf lock */ 99117708Srobert#define sb_startzero sb_mb 10097658Stanimura struct mbuf *sb_mb; /* the mbuf chain */ 101121628Ssam struct mbuf *sb_mbtail; /* the last mbuf in the chain */ 102121628Ssam struct mbuf *sb_lastrecord; /* first mbuf of last record in 103121628Ssam * socket buffer */ 104100591Sjdp u_int sb_cc; /* actual chars in buffer */ 105100591Sjdp u_int sb_hiwat; /* max actual char count */ 106100591Sjdp u_int sb_mbcnt; /* chars of mbufs used */ 107100591Sjdp u_int sb_mbmax; /* max chars of mbufs to use */ 108106313Skbyanc u_int sb_ctl; /* non-data chars in buffer */ 109100591Sjdp int sb_lowat; /* low water mark */ 110100591Sjdp int sb_timeo; /* timeout for read/write */ 11197658Stanimura short sb_flags; /* flags, see below */ 1121541Srgrimes } so_rcv, so_snd; 1131541Srgrimes#define SB_MAX (256*1024) /* default for max chars in sockbuf */ 1141541Srgrimes#define SB_LOCK 0x01 /* lock on data queue */ 1151541Srgrimes#define SB_WANT 0x02 /* someone is waiting to lock */ 1161541Srgrimes#define SB_WAIT 0x04 /* someone is waiting for data/space */ 1171541Srgrimes#define SB_SEL 0x08 /* someone is selecting */ 1181541Srgrimes#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ 11936527Speter#define SB_UPCALL 0x20 /* someone wants an upcall */ 1201541Srgrimes#define SB_NOINTR 0x40 /* operations not interruptible */ 12155943Sjasone#define SB_AIO 0x80 /* AIO operations queued */ 12259288Sjlemon#define SB_KNOTE 0x100 /* kernel note attached */ 1231541Srgrimes 12497658Stanimura void (*so_upcall)(struct socket *, void *, int); 12597658Stanimura void *so_upcallarg; 12697658Stanimura struct ucred *so_cred; /* user credentials */ 127122524Srwatson struct label *so_label; /* MAC label for socket */ 128122524Srwatson struct label *so_peerlabel; /* cached MAC label for socket peer */ 12938482Swollman /* NB: generation count must not be first; easiest to make it last. */ 13097658Stanimura so_gen_t so_gencnt; /* generation count */ 13197658Stanimura void *so_emuldata; /* private data for emulators */ 13297658Stanimura struct so_accf { 13397658Stanimura struct accept_filter *so_accept_filter; 13497658Stanimura void *so_accept_filter_arg; /* saved filter args */ 13597658Stanimura char *so_accept_filter_str; /* saved user args */ 13697658Stanimura } *so_accf; 1371541Srgrimes}; 1381541Srgrimes 139121628Ssam#define SB_EMPTY_FIXUP(sb) do { \ 140121628Ssam if ((sb)->sb_mb == NULL) { \ 141121628Ssam (sb)->sb_mbtail = NULL; \ 142121628Ssam (sb)->sb_lastrecord = NULL; \ 143121628Ssam } \ 144121628Ssam} while (/*CONSTCOND*/0) 145121628Ssam 1461541Srgrimes/* 147129979Srwatson * Global accept mutex to serialize access to accept queues and 148129979Srwatson * fields associated with multiple sockets. This allows us to 149129979Srwatson * avoid defining a lock order between listen and accept sockets 150129979Srwatson * until such time as it proves to be a good idea. 151129979Srwatson */ 152129979Srwatsonextern struct mtx accept_mtx; 153130364Srwatson#define ACCEPT_LOCK() mtx_lock(&accept_mtx) 154130364Srwatson#define ACCEPT_UNLOCK() mtx_unlock(&accept_mtx) 155129979Srwatson 156129979Srwatson/* 157130380Srwatson * Per-socket buffer mutex used to protect most fields in the socket 158130380Srwatson * buffer. 159130380Srwatson */ 160130380Srwatson#define SOCKBUF_MTX(_sb) (&(_sb)->sb_mtx) 161130380Srwatson#define SOCKBUF_LOCK_INIT(_sb, _name) \ 162130380Srwatson mtx_init(SOCKBUF_MTX(_sb), _name, NULL, MTX_DEF) 163130380Srwatson#define SOCKBUF_LOCK_DESTROY(_sb) mtx_destroy(SOCKBUF_MTX(_sb)) 164130380Srwatson#define SOCKBUF_LOCK(_sb) mtx_lock(SOCKBUF_MTX(_sb)) 165130380Srwatson#define SOCKBUF_OWNED(_sb) mtx_owned(SOCKBUF_MTX(_sb)) 166130380Srwatson#define SOCKBUF_UNLOCK(_sb) mtx_unlock(SOCKBUF_MTX(_sb)) 167130380Srwatson#define SOCKBUF_LOCK_ASSERT(_sb) mtx_assert(SOCKBUF_MTX(_sb), MA_OWNED) 168130380Srwatson 169130380Srwatson/* 170130380Srwatson * Per-socket mutex: we reuse the receive socket buffer mutex for space 171130380Srwatson * efficiency. This decision should probably be revisited as we optimize 172130380Srwatson * locking for the socket code. 173130380Srwatson */ 174130380Srwatson#define SOCK_MTX(_so) SOCKBUF_MTX(&(_so)->so_rcv) 175130380Srwatson#define SOCK_LOCK(_so) SOCKBUF_LOCK(&(_so)->so_rcv) 176130380Srwatson#define SOCK_OWNED(_so) SOCKBUF_OWNED(&(_so)->so_rcv) 177130380Srwatson#define SOCK_UNLOCK(_so) SOCKBUF_UNLOCK(&(_so)->so_rcv) 178130380Srwatson#define SOCK_LOCK_ASSERT(_so) SOCKBUF_LOCK_ASSERT(&(_so)->so_rcv) 179130380Srwatson 180130380Srwatson/* 1811541Srgrimes * Socket state bits. 1821541Srgrimes */ 18314547Sdg#define SS_NOFDREF 0x0001 /* no file table ref any more */ 18414547Sdg#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ 18514547Sdg#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ 18614547Sdg#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ 18714547Sdg#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ 18814547Sdg#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ 18914547Sdg#define SS_RCVATMARK 0x0040 /* at mark on input */ 1901541Srgrimes 19114547Sdg#define SS_NBIO 0x0100 /* non-blocking ops */ 19214547Sdg#define SS_ASYNC 0x0200 /* async i/o notify */ 19314547Sdg#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ 1941541Srgrimes 19543196Sfenner#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */ 1961541Srgrimes 19736079Swollman/* 198129916Srwatson * Socket state bits stored in so_qstate. 199129916Srwatson */ 200129916Srwatson#define SQ_INCOMP 0x0800 /* unaccepted, incomplete connection */ 201129916Srwatson#define SQ_COMP 0x1000 /* unaccepted, complete connection */ 202129916Srwatson 203129916Srwatson/* 20436079Swollman * Externalized form of struct socket used by the sysctl(3) interface. 20536079Swollman */ 20683045Sobrienstruct xsocket { 20736079Swollman size_t xso_len; /* length of this structure */ 20836079Swollman struct socket *xso_so; /* makes a convenient handle sometimes */ 20936079Swollman short so_type; 21036079Swollman short so_options; 21136079Swollman short so_linger; 21236079Swollman short so_state; 21336079Swollman caddr_t so_pcb; /* another convenient handle */ 21436079Swollman int xso_protocol; 21536079Swollman int xso_family; 21636079Swollman short so_qlen; 21736079Swollman short so_incqlen; 21836079Swollman short so_qlimit; 21936079Swollman short so_timeo; 22036079Swollman u_short so_error; 22136079Swollman pid_t so_pgid; 22236079Swollman u_long so_oobmark; 22383421Sobrien struct xsockbuf { 224100591Sjdp u_int sb_cc; 225100591Sjdp u_int sb_hiwat; 226100591Sjdp u_int sb_mbcnt; 227100591Sjdp u_int sb_mbmax; 228100591Sjdp int sb_lowat; 229100591Sjdp int sb_timeo; 23036079Swollman short sb_flags; 23136079Swollman } so_rcv, so_snd; 23236079Swollman uid_t so_uid; /* XXX */ 23336079Swollman}; 23414547Sdg 2351541Srgrimes/* 2361541Srgrimes * Macros for sockets and socket buffering. 2371541Srgrimes */ 2381541Srgrimes 2391541Srgrimes/* 24036527Speter * Do we need to notify the other side when I/O is possible? 24136527Speter */ 24255943Sjasone#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT | SB_SEL | SB_ASYNC | \ 24359288Sjlemon SB_UPCALL | SB_AIO | SB_KNOTE)) != 0) 24436527Speter 24536527Speter/* 2461541Srgrimes * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? 2471541Srgrimes * This is problematical if the fields are unsigned, as the space might 2481541Srgrimes * still be negative (cc > hiwat or mbcnt > mbmax). Should detect 2491541Srgrimes * overflow and return 0. Should use "lmin" but it doesn't exist now. 2501541Srgrimes */ 2511541Srgrimes#define sbspace(sb) \ 2521541Srgrimes ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ 2531541Srgrimes (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) 2541541Srgrimes 2551541Srgrimes/* do we have to send all at once on a socket? */ 2561541Srgrimes#define sosendallatonce(so) \ 2571541Srgrimes ((so)->so_proto->pr_flags & PR_ATOMIC) 2581541Srgrimes 2591541Srgrimes/* can we read something from so? */ 2601541Srgrimes#define soreadable(so) \ 2611541Srgrimes ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ 2621541Srgrimes ((so)->so_state & SS_CANTRCVMORE) || \ 26370536Sphk !TAILQ_EMPTY(&(so)->so_comp) || (so)->so_error) 2641541Srgrimes 2651541Srgrimes/* can we write something to so? */ 2661541Srgrimes#define sowriteable(so) \ 2673304Sphk ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ 2681541Srgrimes (((so)->so_state&SS_ISCONNECTED) || \ 2693304Sphk ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ 2701541Srgrimes ((so)->so_state & SS_CANTSENDMORE) || \ 2711541Srgrimes (so)->so_error) 2721541Srgrimes 2731541Srgrimes/* adjust counters in sb reflecting allocation of m */ 2741541Srgrimes#define sballoc(sb, m) { \ 2751541Srgrimes (sb)->sb_cc += (m)->m_len; \ 276109098Stjr if ((m)->m_type != MT_DATA && (m)->m_type != MT_HEADER && \ 277109098Stjr (m)->m_type != MT_OOBDATA) \ 278106313Skbyanc (sb)->sb_ctl += (m)->m_len; \ 2791541Srgrimes (sb)->sb_mbcnt += MSIZE; \ 2801541Srgrimes if ((m)->m_flags & M_EXT) \ 2811541Srgrimes (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ 2821541Srgrimes} 2831541Srgrimes 2841541Srgrimes/* adjust counters in sb reflecting freeing of m */ 2851541Srgrimes#define sbfree(sb, m) { \ 2861541Srgrimes (sb)->sb_cc -= (m)->m_len; \ 287109098Stjr if ((m)->m_type != MT_DATA && (m)->m_type != MT_HEADER && \ 288109098Stjr (m)->m_type != MT_OOBDATA) \ 289106313Skbyanc (sb)->sb_ctl -= (m)->m_len; \ 2901541Srgrimes (sb)->sb_mbcnt -= MSIZE; \ 2911541Srgrimes if ((m)->m_flags & M_EXT) \ 2921541Srgrimes (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ 2931541Srgrimes} 2941541Srgrimes 2951541Srgrimes/* 2961541Srgrimes * Set lock on sockbuf sb; sleep if lock is already held. 2971541Srgrimes * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. 2981541Srgrimes * Returns error without lock if sleep is interrupted. 2991541Srgrimes */ 3001541Srgrimes#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ 301111119Simp (((wf) == M_WAITOK) ? sb_lock(sb) : EWOULDBLOCK) : \ 3021541Srgrimes ((sb)->sb_flags |= SB_LOCK), 0) 3031541Srgrimes 3041541Srgrimes/* release lock on sockbuf sb */ 3051541Srgrimes#define sbunlock(sb) { \ 3061541Srgrimes (sb)->sb_flags &= ~SB_LOCK; \ 3071541Srgrimes if ((sb)->sb_flags & SB_WANT) { \ 3081541Srgrimes (sb)->sb_flags &= ~SB_WANT; \ 309111748Sdes wakeup(&(sb)->sb_flags); \ 3101541Srgrimes } \ 3111541Srgrimes} 3121541Srgrimes 31386487Sdillon/* 31486487Sdillon * soref()/sorele() ref-count the socket structure. Note that you must 31586487Sdillon * still explicitly close the socket, but the last ref count will free 31686487Sdillon * the structure. 31786487Sdillon */ 318130383Srwatson#define soref(so) do { \ 319130383Srwatson ++(so)->so_count; \ 320130383Srwatson} while (0) 32186487Sdillon 322130383Srwatson#define sorele(so) do { \ 323130383Srwatson if ((so)->so_count <= 0) \ 324130383Srwatson panic("sorele"); \ 325130383Srwatson if (--(so)->so_count == 0) \ 326130383Srwatson sofree(so); \ 327130383Srwatson} while (0) 32886487Sdillon 329130383Srwatson#define sotryfree(so) do { \ 330130383Srwatson if ((so)->so_count == 0) \ 331130383Srwatson sofree(so); \ 332130383Srwatson} while(0) 33386487Sdillon 334130383Srwatson#define sorwakeup(so) do { \ 335130383Srwatson if (sb_notify(&(so)->so_rcv)) \ 336130383Srwatson sowakeup((so), &(so)->so_rcv); \ 337130383Srwatson} while (0) 3381541Srgrimes 339130383Srwatson#define sowwakeup(so) do { \ 340130383Srwatson if (sb_notify(&(so)->so_snd)) \ 341130383Srwatson sowakeup((so), &(so)->so_snd); \ 342130383Srwatson} while (0) 3431541Srgrimes 34455205Speter#ifdef _KERNEL 34531927Sbde 34638482Swollman/* 34738482Swollman * Argument structure for sosetopt et seq. This is in the KERNEL 34838482Swollman * section because it will never be visible to user code. 34938482Swollman */ 35038482Swollmanenum sopt_dir { SOPT_GET, SOPT_SET }; 35138482Swollmanstruct sockopt { 35238482Swollman enum sopt_dir sopt_dir; /* is this a get or a set? */ 35338482Swollman int sopt_level; /* second arg of [gs]etsockopt */ 35438482Swollman int sopt_name; /* third arg of [gs]etsockopt */ 35538482Swollman void *sopt_val; /* fourth arg of [gs]etsockopt */ 35638482Swollman size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ 35795959Salfred struct thread *sopt_td; /* calling thread or null if kernel */ 35838482Swollman}; 35938482Swollman 36061837Salfredstruct accept_filter { 36161837Salfred char accf_name[16]; 36261837Salfred void (*accf_callback) 36392719Salfred (struct socket *so, void *arg, int waitflag); 36461837Salfred void * (*accf_create) 36592719Salfred (struct socket *so, char *arg); 36661837Salfred void (*accf_destroy) 36792719Salfred (struct socket *so); 36895959Salfred SLIST_ENTRY(accept_filter) accf_next; 36982656Sjlemon}; 37061837Salfred 37131927Sbde#ifdef MALLOC_DECLARE 37295959SalfredMALLOC_DECLARE(M_ACCF); 37331927SbdeMALLOC_DECLARE(M_PCB); 37431927SbdeMALLOC_DECLARE(M_SONAME); 37531927Sbde#endif 37631927Sbde 37795959Salfredextern int maxsockets; 3782112Swollmanextern u_long sb_max; 37995959Salfredextern struct uma_zone *socket_zone; 38036079Swollmanextern so_gen_t so_gencnt; 38114505Shsu 38215492Sbdestruct mbuf; 38315492Sbdestruct sockaddr; 38432995Sbdestruct ucred; 38532995Sbdestruct uio; 38615492Sbde 3871541Srgrimes/* 3883304Sphk * From uipc_socket and friends 3893304Sphk */ 39092719Salfredint sockargs(struct mbuf **mp, caddr_t buf, int buflen, int type); 39192719Salfredint getsockaddr(struct sockaddr **namp, caddr_t uaddr, size_t len); 39292719Salfredvoid sbappend(struct sockbuf *sb, struct mbuf *m); 393121628Ssamvoid sbappendstream(struct sockbuf *sb, struct mbuf *m); 394130050Srwatsonint sbappendaddr(struct sockbuf *sb, const struct sockaddr *asa, 39592719Salfred struct mbuf *m0, struct mbuf *control); 39692719Salfredint sbappendcontrol(struct sockbuf *sb, struct mbuf *m0, 39792719Salfred struct mbuf *control); 39892719Salfredvoid sbappendrecord(struct sockbuf *sb, struct mbuf *m0); 39992719Salfredvoid sbcheck(struct sockbuf *sb); 40092719Salfredvoid sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n); 40119670Sbdestruct mbuf * 40292719Salfred sbcreatecontrol(caddr_t p, int size, int type, int level); 40392719Salfredvoid sbdrop(struct sockbuf *sb, int len); 40492719Salfredvoid sbdroprecord(struct sockbuf *sb); 40592719Salfredvoid sbflush(struct sockbuf *sb); 40692719Salfredvoid sbinsertoob(struct sockbuf *sb, struct mbuf *m0); 40792719Salfredvoid sbrelease(struct sockbuf *sb, struct socket *so); 40892719Salfredint sbreserve(struct sockbuf *sb, u_long cc, struct socket *so, 40993008Sbde struct thread *td); 41092719Salfredvoid sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb); 41192719Salfredint sbwait(struct sockbuf *sb); 41292719Salfredint sb_lock(struct sockbuf *sb); 41392719Salfredint soabort(struct socket *so); 41492719Salfredint soaccept(struct socket *so, struct sockaddr **nam); 415126411Srwatsonstruct socket *soalloc(int mflags); 41695959Salfredint socheckuid(struct socket *so, uid_t uid); 41792719Salfredint sobind(struct socket *so, struct sockaddr *nam, struct thread *td); 41892719Salfredvoid socantrcvmore(struct socket *so); 41992719Salfredvoid socantsendmore(struct socket *so); 42092719Salfredint soclose(struct socket *so); 42192719Salfredint soconnect(struct socket *so, struct sockaddr *nam, struct thread *td); 42292719Salfredint soconnect2(struct socket *so1, struct socket *so2); 42398849Skenint socow_setup(struct mbuf *m0, struct uio *uio); 42492719Salfredint socreate(int dom, struct socket **aso, int type, int proto, 42592719Salfred struct ucred *cred, struct thread *td); 426106326Salcvoid sodealloc(struct socket *so); 42792719Salfredint sodisconnect(struct socket *so); 428126425Srwatsonstruct sockaddr *sodupsockaddr(const struct sockaddr *sa, int mflags); 42992719Salfredvoid sofree(struct socket *so); 43092719Salfredint sogetopt(struct socket *so, struct sockopt *sopt); 43192719Salfredvoid sohasoutofband(struct socket *so); 43292719Salfredvoid soisconnected(struct socket *so); 43392719Salfredvoid soisconnecting(struct socket *so); 43492719Salfredvoid soisdisconnected(struct socket *so); 43592719Salfredvoid soisdisconnecting(struct socket *so); 43692719Salfredint solisten(struct socket *so, int backlog, struct thread *td); 43714505Shsustruct socket * 43892719Salfred sonewconn(struct socket *head, int connstatus); 43993008Sbdeint sooptcopyin(struct sockopt *sopt, void *buf, size_t len, size_t minlen); 440118453Shsuint sooptcopyout(struct sockopt *sopt, const void *buf, size_t len); 44153541Sshin 44253541Sshin/* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */ 44392719Salfredint soopt_getm(struct sockopt *sopt, struct mbuf **mp); 44492719Salfredint soopt_mcopyin(struct sockopt *sopt, struct mbuf *m); 44592719Salfredint soopt_mcopyout(struct sockopt *sopt, struct mbuf *m); 44653541Sshin 447101983Srwatsonint sopoll(struct socket *so, int events, struct ucred *active_cred, 44893008Sbde struct thread *td); 44993008Sbdeint soreceive(struct socket *so, struct sockaddr **paddr, struct uio *uio, 45093008Sbde struct mbuf **mp0, struct mbuf **controlp, int *flagsp); 45192719Salfredint soreserve(struct socket *so, u_long sndcc, u_long rcvcc); 45292719Salfredvoid sorflush(struct socket *so); 45392719Salfredint sosend(struct socket *so, struct sockaddr *addr, struct uio *uio, 45493008Sbde struct mbuf *top, struct mbuf *control, int flags, 45593008Sbde struct thread *td); 45692719Salfredint sosetopt(struct socket *so, struct sockopt *sopt); 45792719Salfredint soshutdown(struct socket *so, int how); 45892719Salfredvoid sotoxsocket(struct socket *so, struct xsocket *xso); 45992719Salfredvoid sowakeup(struct socket *so, struct sockbuf *sb); 46031927Sbde 461121628Ssam#ifdef SOCKBUF_DEBUG 462121628Ssamvoid sblastrecordchk(struct sockbuf *, const char *, int); 463121628Ssam#define SBLASTRECORDCHK(sb) sblastrecordchk((sb), __FILE__, __LINE__) 464121628Ssam 465121628Ssamvoid sblastmbufchk(struct sockbuf *, const char *, int); 466121628Ssam#define SBLASTMBUFCHK(sb) sblastmbufchk((sb), __FILE__, __LINE__) 467121628Ssam#else 468121628Ssam#define SBLASTRECORDCHK(sb) /* nothing */ 469121628Ssam#define SBLASTMBUFCHK(sb) /* nothing */ 470121628Ssam#endif /* SOCKBUF_DEBUG */ 471121628Ssam 47295959Salfred/* 47395959Salfred * Accept filter functions (duh). 47495959Salfred */ 47592719Salfredint accept_filt_add(struct accept_filter *filt); 47692719Salfredint accept_filt_del(char *name); 47795959Salfredstruct accept_filter *accept_filt_get(char *name); 47861837Salfred#ifdef ACCEPT_FILTER_MOD 47995959Salfred#ifdef SYSCTL_DECL 48065534SalfredSYSCTL_DECL(_net_inet_accf); 48195959Salfred#endif 48295959Salfredint accept_filt_generic_mod_event(module_t mod, int event, void *data); 48395959Salfred#endif 48461837Salfred 48555205Speter#endif /* _KERNEL */ 4862165Spaul 48714505Shsu#endif /* !_SYS_SOCKETVAR_H_ */ 488