diff options
Diffstat (limited to 'cpukit/libnetworking/sys/socketvar.h')
| -rw-r--r-- | cpukit/libnetworking/sys/socketvar.h | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/cpukit/libnetworking/sys/socketvar.h b/cpukit/libnetworking/sys/socketvar.h deleted file mode 100644 index 2cdd5158ef..0000000000 --- a/cpukit/libnetworking/sys/socketvar.h +++ /dev/null @@ -1,271 +0,0 @@ -/*- - * Copyright (c) 1982, 1986, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)socketvar.h 8.3 (Berkeley) 2/19/95 - * $FreeBSD: src/sys/sys/socketvar.h,v 1.135 2004/10/18 22:19:43 rwatson Exp $ - */ - -#ifndef _SYS_SOCKETVAR_H_ -#define _SYS_SOCKETVAR_H_ - -#include <sys/queue.h> /* for TAILQ macros */ -#include <sys/selinfo.h> /* for struct selinfo */ - - -/* - * Kernel structure per socket. - * Contains send and receive buffer queues, - * handle on protocol and pointer to protocol - * private data and error information. - */ -typedef u_quad_t so_gen_t; - -struct socket { - short so_type; /* generic type, see socket.h */ - short so_options; /* from socket call, see socket.h */ - short so_linger; /* time to linger while closing */ - short so_state; /* internal state flags SS_*, below */ - void *so_pcb; /* protocol control block */ - struct protosw *so_proto; /* protocol handle */ -/* - * Variables for connection queuing. - * Socket where accepts occur is so_head in all subsidiary sockets. - * If so_head is 0, socket is not related to an accept. - * For head socket so_q0 queues partially completed connections, - * while so_q is a queue of connections ready to be accepted. - * If a connection is aborted and it has so_head set, then - * it has to be pulled out of either so_q0 or so_q. - * We allow connections to queue up based on current queue lengths - * and limit on number of queued connections for this socket. - */ - struct socket *so_head; /* back pointer to accept socket */ - TAILQ_HEAD(, socket) so_incomp; /* queue of partial unaccepted connections */ - TAILQ_HEAD(, socket) so_comp; /* queue of complete unaccepted connections */ - TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */ - short so_qlen; /* number of unaccepted connections */ - short so_incqlen; /* number of unaccepted incomplete - connections */ - short so_qlimit; /* max number queued connections */ - short so_timeo; /* connection timeout */ - u_short so_error; /* error affecting connection */ - pid_t so_pgid; /* pgid for signals */ - u_long so_oobmark; /* chars to oob mark */ -/* - * Variables for socket buffering. - */ - struct sockbuf { - u_int sb_cc; /* actual chars in buffer */ - u_int sb_hiwat; /* max actual char count */ - u_int sb_mbcnt; /* chars of mbufs used */ - u_int sb_mbmax; /* max chars of mbufs to use */ - int sb_lowat; /* low water mark */ - struct mbuf *sb_mb; /* the mbuf chain */ - struct selinfo sb_sel; /* process selecting read/write */ - short sb_flags; /* flags, see below */ - int sb_timeo; /* timeout for read/write */ - void (*sb_wakeup)(struct socket *, void *); - void *sb_wakeuparg; /* arg for above */ - } so_rcv, so_snd; -#define SB_MAX (256L*1024L) /* default for max chars in sockbuf */ -#define SB_LOCK 0x01 /* lock on data queue */ -#define SB_WANT 0x02 /* someone is waiting to lock */ -#define SB_WAIT 0x04 /* someone is waiting for data/space */ -#define SB_SEL 0x08 /* someone is selecting */ -#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ -#define SB_NOTIFY (SB_WAIT|SB_SEL|SB_ASYNC) -#define SB_NOINTR 0x40 /* operations not interruptible */ - - caddr_t so_tpcb; /* Wisc. protocol control block XXX */ - void (*so_upcall)(struct socket *, void *arg, int); - void *so_upcallarg; /* Arg for above */ -}; - -/* - * Socket state bits. - */ -#define SS_NOFDREF 0x0001 /* no file table ref any more */ -#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */ -#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */ -#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */ -#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */ -#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */ -#define SS_RCVATMARK 0x0040 /* at mark on input */ - -#define SS_PRIV 0x0080 /* privileged for broadcast, raw... */ -#define SS_NBIO 0x0100 /* non-blocking ops */ -#define SS_ASYNC 0x0200 /* async i/o notify */ -#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */ - -#define SS_INCOMP 0x0800 /* unaccepted, incomplete connection */ -#define SS_COMP 0x1000 /* unaccepted, complete connection */ - - -/* - * Macros for sockets and socket buffering. - */ - -/* - * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? - * This is problematical if the fields are unsigned, as the space might - * still be negative (cc > hiwat or mbcnt > mbmax). Should detect - * overflow and return 0. Should use "lmin" but it doesn't exist now. - */ -#define sbspace(sb) \ - ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ - (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) - -/* do we have to send all at once on a socket? */ -#define sosendallatonce(so) \ - ((so)->so_proto->pr_flags & PR_ATOMIC) - -/* can we read something from so? */ -#define soreadable(so) \ - ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ - ((so)->so_state & SS_CANTRCVMORE) || \ - (so)->so_comp.tqh_first || (so)->so_error) - -/* can we write something to so? */ -#define sowriteable(so) \ - ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ - (((so)->so_state&SS_ISCONNECTED) || \ - ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ - ((so)->so_state & SS_CANTSENDMORE) || \ - (so)->so_error) - -/* adjust counters in sb reflecting allocation of m */ -#define sballoc(sb, m) { \ - (sb)->sb_cc += (m)->m_len; \ - (sb)->sb_mbcnt += _SYS_MBUF_LEGACY_MSIZE; \ - if ((m)->m_flags & M_EXT) \ - (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ -} - -/* adjust counters in sb reflecting freeing of m */ -#define sbfree(sb, m) { \ - (sb)->sb_cc -= (m)->m_len; \ - (sb)->sb_mbcnt -= _SYS_MBUF_LEGACY_MSIZE; \ - if ((m)->m_flags & M_EXT) \ - (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ -} - -/* - * Set lock on sockbuf sb; sleep if lock is already held. - * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. - * Returns error without lock if sleep is interrupted. - */ -#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ - (((wf) == M_WAITOK) ? sb_lock(sb) : EWOULDBLOCK) : \ - ((sb)->sb_flags |= SB_LOCK), 0) - -/* release lock on sockbuf sb */ -#define sbunlock(sb) { \ - (sb)->sb_flags &= ~SB_LOCK; \ - if ((sb)->sb_flags & SB_WANT) { \ - (sb)->sb_flags &= ~SB_WANT; \ - wakeup((caddr_t)&(sb)->sb_flags); \ - } \ -} - -#define sorwakeup(so) { sowakeup((so), &(so)->so_rcv); \ - if ((so)->so_upcall) \ - (*((so)->so_upcall))((so), (so)->so_upcallarg, M_DONTWAIT); \ - } - -#define sowwakeup(so) sowakeup((so), &(so)->so_snd) - -#ifdef _KERNEL -extern u_long sb_max; - -/* to catch callers missing new second argument to sonewconn: */ -#define sonewconn(head, connstatus) sonewconn1((head), (connstatus)) - -struct filedesc; -struct mbuf; -struct sockaddr; -struct stat; -struct uio; - -/* - * From uipc_socket and friends - */ -int sockargs(struct mbuf **mp, caddr_t buf, int buflen, int type); -void sbappend(struct sockbuf *sb, struct mbuf *m); -int sbappendaddr(struct sockbuf *sb, struct sockaddr *asa, - struct mbuf *m0, struct mbuf *control); -int sbappendcontrol(struct sockbuf *sb, struct mbuf *m0, - struct mbuf *control); -void sbappendrecord(struct sockbuf *sb, struct mbuf *m0); -void sbcheck(struct sockbuf *sb); -void sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n); -struct mbuf * - sbcreatecontrol(caddr_t p, int size, int type, int level); -void sbdrop(struct sockbuf *sb, int len); -void sbdroprecord(struct sockbuf *sb); -void sbflush(struct sockbuf *sb); -void sbinsertoob(struct sockbuf *sb, struct mbuf *m0); -void sbrelease(struct sockbuf *sb); -int sbreserve(struct sockbuf *sb, u_long cc); -int sbwait(struct sockbuf *sb); -int sb_lock(struct sockbuf *sb); -int soabort(struct socket *so); -int soaccept(struct socket *so, struct mbuf *nam); -int sobind(struct socket *so, struct mbuf *nam); -void socantrcvmore(struct socket *so); -void socantsendmore(struct socket *so); -int soclose(struct socket *so); -int soconnect(struct socket *so, struct mbuf *nam); -int soconnect2(struct socket *so1, struct socket *so2); -int socreate(int dom, struct socket **aso, int type, int proto, - struct proc *p); -int sodisconnect(struct socket *so); -void sofree(struct socket *so); -int sogetopt(struct socket *so, int level, int optname, - struct mbuf **mp); -void sohasoutofband(struct socket *so); -void soisconnected(struct socket *so); -void soisconnecting(struct socket *so); -void soisdisconnected(struct socket *so); -void soisdisconnecting(struct socket *so); -int solisten(struct socket *so, int backlog); -struct socket * - sodropablereq(struct socket *head); -struct socket * - sonewconn1(struct socket *head, int connstatus); -int soreceive(struct socket *so, struct mbuf **paddr, struct uio *uio, - struct mbuf **mp0, struct mbuf **controlp, int *flagsp); -int soreserve(struct socket *so, u_long sndcc, u_long rcvcc); -void sorflush(struct socket *so); -int sosend(struct socket *so, struct mbuf *addr, struct uio *uio, - struct mbuf *top, struct mbuf *control, int flags); -int sosetopt(struct socket *so, int level, int optname, - struct mbuf *m0); -int soshutdown(struct socket *so, int how); -void sowakeup(struct socket *so, struct sockbuf *sb); -#endif /* _KERNEL */ - -#endif /* !_SYS_SOCKETVAR_H_ */ |