diff options
Diffstat (limited to 'c/src/exec/libnetworking/kern/uipc_socket2.c')
| -rw-r--r-- | c/src/exec/libnetworking/kern/uipc_socket2.c | 965 |
1 files changed, 0 insertions, 965 deletions
diff --git a/c/src/exec/libnetworking/kern/uipc_socket2.c b/c/src/exec/libnetworking/kern/uipc_socket2.c deleted file mode 100644 index 0539d2c5f3..0000000000 --- a/c/src/exec/libnetworking/kern/uipc_socket2.c +++ /dev/null @@ -1,965 +0,0 @@ -/* - * This file has undergone several changes to reflect the - * differences between the RTEMS and FreeBSD kernels. - */ - -/* - * Copyright (c) 1982, 1986, 1988, 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 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. - * - * @(#)uipc_socket2.c 8.1 (Berkeley) 6/10/93 - * $Id$ - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/proc.h> -#include <sys/file.h> -#include <sys/buf.h> -#include <sys/malloc.h> -#include <sys/mbuf.h> -#include <sys/protosw.h> -#include <sys/stat.h> -#include <sys/socket.h> -#include <sys/socketvar.h> -#include <sys/signalvar.h> -#include <sys/sysctl.h> - -/* - * Primitive routines for operating on sockets and socket buffers - */ - -u_long sb_max = SB_MAX; /* XXX should be static */ -SYSCTL_INT(_kern, KERN_MAXSOCKBUF, maxsockbuf, CTLFLAG_RW, &sb_max, 0, "") - -static u_long sb_efficiency = 8; /* parameter for sbreserve() */ -SYSCTL_INT(_kern, OID_AUTO, sockbuf_waste_factor, CTLFLAG_RW, &sb_efficiency, - 0, ""); - -/* - * Procedures to manipulate state flags of socket - * and do appropriate wakeups. Normal sequence from the - * active (originating) side is that soisconnecting() is - * called during processing of connect() call, - * resulting in an eventual call to soisconnected() if/when the - * connection is established. When the connection is torn down - * soisdisconnecting() is called during processing of disconnect() call, - * and soisdisconnected() is called when the connection to the peer - * is totally severed. The semantics of these routines are such that - * connectionless protocols can call soisconnected() and soisdisconnected() - * only, bypassing the in-progress calls when setting up a ``connection'' - * takes no time. - * - * From the passive side, a socket is created with - * two queues of sockets: so_q0 for connections in progress - * and so_q for connections already made and awaiting user acceptance. - * As a protocol is preparing incoming connections, it creates a socket - * structure queued on so_q0 by calling sonewconn(). When the connection - * is established, soisconnected() is called, and transfers the - * socket structure to so_q, making it available to accept(). - * - * If a socket is closed with sockets on either - * so_q0 or so_q, these sockets are dropped. - * - * If higher level protocols are implemented in - * the kernel, the wakeups done here will sometimes - * cause software-interrupt process scheduling. - */ - -void -soisconnecting(so) - register struct socket *so; -{ - - so->so_state &= ~(SS_ISCONNECTED|SS_ISDISCONNECTING); - so->so_state |= SS_ISCONNECTING; -} - -void -soisconnected(so) - register struct socket *so; -{ - register struct socket *head = so->so_head; - - so->so_state &= ~(SS_ISCONNECTING|SS_ISDISCONNECTING|SS_ISCONFIRMING); - so->so_state |= SS_ISCONNECTED; - if (head && (so->so_state & SS_INCOMP)) { - TAILQ_REMOVE(&head->so_incomp, so, so_list); - head->so_incqlen--; - so->so_state &= ~SS_INCOMP; - TAILQ_INSERT_TAIL(&head->so_comp, so, so_list); - so->so_state |= SS_COMP; - sorwakeup(head); - soconnwakeup(head); - } else { - soconnwakeup(so); - sorwakeup(so); - sowwakeup(so); - } -} - -void -soisdisconnecting(so) - register struct socket *so; -{ - - so->so_state &= ~SS_ISCONNECTING; - so->so_state |= (SS_ISDISCONNECTING|SS_CANTRCVMORE|SS_CANTSENDMORE); - soconnwakeup(so); - sowwakeup(so); - sorwakeup(so); -} - -void -soisdisconnected(so) - register struct socket *so; -{ - - so->so_state &= ~(SS_ISCONNECTING|SS_ISCONNECTED|SS_ISDISCONNECTING); - so->so_state |= (SS_CANTRCVMORE|SS_CANTSENDMORE); - soconnwakeup(so); - sowwakeup(so); - sorwakeup(so); -} - -/* - * Return a random connection that hasn't been serviced yet and - * is eligible for discard. There is a one in qlen chance that - * we will return a null, saying that there are no dropable - * requests. In this case, the protocol specific code should drop - * the new request. This insures fairness. - * - * This may be used in conjunction with protocol specific queue - * congestion routines. - */ -struct socket * -sodropablereq(head) - register struct socket *head; -{ - register struct socket *so; - unsigned int i, j, qlen, m; - - static int rnd; - static long old_mono_secs; - static unsigned int cur_cnt, old_cnt; - - if ((i = (m = rtems_bsdnet_seconds_since_boot()) - old_mono_secs) != 0) { - old_mono_secs = m; - old_cnt = cur_cnt / i; - cur_cnt = 0; - } - - so = TAILQ_FIRST(&head->so_incomp); - if (!so) - return (so); - - qlen = head->so_incqlen; - if (++cur_cnt > qlen || old_cnt > qlen) { - rnd = (314159 * rnd + 66329) & 0xffff; - j = ((qlen + 1) * rnd) >> 16; - - while (j-- && so) - so = TAILQ_NEXT(so, so_list); - } - - return (so); -} - -/* - * When an attempt at a new connection is noted on a socket - * which accepts connections, sonewconn is called. If the - * connection is possible (subject to space constraints, etc.) - * then we allocate a new structure, propoerly linked into the - * data structure of the original socket, and return this. - * Connstatus may be 0, or SO_ISCONFIRMING, or SO_ISCONNECTED. - * - * Currently, sonewconn() is defined as sonewconn1() in socketvar.h - * to catch calls that are missing the (new) second parameter. - */ -struct socket * -sonewconn1(head, connstatus) - register struct socket *head; - int connstatus; -{ - register struct socket *so; - - if (head->so_qlen > 3 * head->so_qlimit / 2) - return ((struct socket *)0); - MALLOC(so, struct socket *, sizeof(*so), M_SOCKET, M_DONTWAIT); - if (so == NULL) - return ((struct socket *)0); - bzero((caddr_t)so, sizeof(*so)); - so->so_head = head; - so->so_type = head->so_type; - so->so_options = head->so_options &~ SO_ACCEPTCONN; - so->so_linger = head->so_linger; - so->so_state = head->so_state | SS_NOFDREF; - so->so_proto = head->so_proto; - so->so_timeo = head->so_timeo; - so->so_pgid = head->so_pgid; - so->so_uid = head->so_uid; - (void) soreserve(so, head->so_snd.sb_hiwat, head->so_rcv.sb_hiwat); - if (connstatus) { - TAILQ_INSERT_TAIL(&head->so_comp, so, so_list); - so->so_state |= SS_COMP; - } else { - TAILQ_INSERT_TAIL(&head->so_incomp, so, so_list); - so->so_state |= SS_INCOMP; - head->so_incqlen++; - } - head->so_qlen++; - if ((*so->so_proto->pr_usrreqs->pru_attach)(so, 0)) { - if (so->so_state & SS_COMP) { - TAILQ_REMOVE(&head->so_comp, so, so_list); - } else { - TAILQ_REMOVE(&head->so_incomp, so, so_list); - head->so_incqlen--; - } - head->so_qlen--; - (void) free((caddr_t)so, M_SOCKET); - return ((struct socket *)0); - } - if (connstatus) { - sorwakeup(head); - soconnwakeup(head); - so->so_state |= connstatus; - } - return (so); -} - -/* - * Socantsendmore indicates that no more data will be sent on the - * socket; it would normally be applied to a socket when the user - * informs the system that no more data is to be sent, by the protocol - * code (in case PRU_SHUTDOWN). Socantrcvmore indicates that no more data - * will be received, and will normally be applied to the socket by a - * protocol when it detects that the peer will send no more data. - * Data queued for reading in the socket may yet be read. - */ - -void -socantsendmore(so) - struct socket *so; -{ - - so->so_state |= SS_CANTSENDMORE; - sowwakeup(so); -} - -void -socantrcvmore(so) - struct socket *so; -{ - - so->so_state |= SS_CANTRCVMORE; - sorwakeup(so); -} - -/* - * Socket buffer (struct sockbuf) utility routines. - * - * Each socket contains two socket buffers: one for sending data and - * one for receiving data. Each buffer contains a queue of mbufs, - * information about the number of mbufs and amount of data in the - * queue, and other fields allowing select() statements and notification - * on data availability to be implemented. - * - * Data stored in a socket buffer is maintained as a list of records. - * Each record is a list of mbufs chained together with the m_next - * field. Records are chained together with the m_nextpkt field. The upper - * level routine soreceive() expects the following conventions to be - * observed when placing information in the receive buffer: - * - * 1. If the protocol requires each message be preceded by the sender's - * name, then a record containing that name must be present before - * any associated data (mbuf's must be of type MT_SONAME). - * 2. If the protocol supports the exchange of ``access rights'' (really - * just additional data associated with the message), and there are - * ``rights'' to be received, then a record containing this data - * should be present (mbuf's must be of type MT_RIGHTS). - * 3. If a name or rights record exists, then it must be followed by - * a data record, perhaps of zero length. - * - * Before using a new socket structure it is first necessary to reserve - * buffer space to the socket, by calling sbreserve(). This should commit - * some of the available buffer space in the system buffer pool for the - * socket (currently, it does nothing but enforce limits). The space - * should be released by calling sbrelease() when the socket is destroyed. - */ - -int -soreserve(so, sndcc, rcvcc) - register struct socket *so; - u_long sndcc, rcvcc; -{ - - if (sbreserve(&so->so_snd, sndcc) == 0) - goto bad; - if (sbreserve(&so->so_rcv, rcvcc) == 0) - goto bad2; - if (so->so_rcv.sb_lowat == 0) - so->so_rcv.sb_lowat = 1; - if (so->so_snd.sb_lowat == 0) - so->so_snd.sb_lowat = MCLBYTES; - if (so->so_snd.sb_lowat > so->so_snd.sb_hiwat) - so->so_snd.sb_lowat = so->so_snd.sb_hiwat; - return (0); -bad2: - sbrelease(&so->so_snd); -bad: - return (ENOBUFS); -} - -/* - * Allot mbufs to a sockbuf. - * Attempt to scale mbmax so that mbcnt doesn't become limiting - * if buffering efficiency is near the normal case. - */ -int -sbreserve(sb, cc) - struct sockbuf *sb; - u_long cc; -{ - - if (cc > sb_max * MCLBYTES / (MSIZE + MCLBYTES)) - return (0); - sb->sb_hiwat = cc; - sb->sb_mbmax = min(cc * sb_efficiency, sb_max); - if (sb->sb_lowat > sb->sb_hiwat) - sb->sb_lowat = sb->sb_hiwat; - return (1); -} - -/* - * Free mbufs held by a socket, and reserved mbuf space. - */ -void -sbrelease(sb) - struct sockbuf *sb; -{ - - sbflush(sb); - sb->sb_hiwat = sb->sb_mbmax = 0; -} - -/* - * Routines to add and remove - * data from an mbuf queue. - * - * The routines sbappend() or sbappendrecord() are normally called to - * append new mbufs to a socket buffer, after checking that adequate - * space is available, comparing the function sbspace() with the amount - * of data to be added. sbappendrecord() differs from sbappend() in - * that data supplied is treated as the beginning of a new record. - * To place a sender's address, optional access rights, and data in a - * socket receive buffer, sbappendaddr() should be used. To place - * access rights and data in a socket receive buffer, sbappendrights() - * should be used. In either case, the new data begins a new record. - * Note that unlike sbappend() and sbappendrecord(), these routines check - * for the caller that there will be enough space to store the data. - * Each fails if there is not enough space, or if it cannot find mbufs - * to store additional information in. - * - * Reliable protocols may use the socket send buffer to hold data - * awaiting acknowledgement. Data is normally copied from a socket - * send buffer in a protocol with m_copy for output to a peer, - * and then removing the data from the socket buffer with sbdrop() - * or sbdroprecord() when the data is acknowledged by the peer. - */ - -/* - * Append mbuf chain m to the last record in the - * socket buffer sb. The additional space associated - * the mbuf chain is recorded in sb. Empty mbufs are - * discarded and mbufs are compacted where possible. - */ -void -sbappend(sb, m) - struct sockbuf *sb; - struct mbuf *m; -{ - register struct mbuf *n; - - if (m == 0) - return; - n = sb->sb_mb; - if (n) { - while (n->m_nextpkt) - n = n->m_nextpkt; - do { - if (n->m_flags & M_EOR) { - sbappendrecord(sb, m); /* XXXXXX!!!! */ - return; - } - } while (n->m_next && (n = n->m_next)); - } - sbcompress(sb, m, n); -} - -#ifdef SOCKBUF_DEBUG -void -sbcheck(sb) - register struct sockbuf *sb; -{ - register struct mbuf *m; - register int len = 0, mbcnt = 0; - - for (m = sb->sb_mb; m; m = m->m_next) { - len += m->m_len; - mbcnt += MSIZE; - if (m->m_flags & M_EXT) /*XXX*/ /* pretty sure this is bogus */ - mbcnt += m->m_ext.ext_size; - if (m->m_nextpkt) - panic("sbcheck nextpkt"); - } - if (len != sb->sb_cc || mbcnt != sb->sb_mbcnt) { - printf("cc %d != %d || mbcnt %d != %d\n", len, sb->sb_cc, - mbcnt, sb->sb_mbcnt); - panic("sbcheck"); - } -} -#endif - -/* - * As above, except the mbuf chain - * begins a new record. - */ -void -sbappendrecord(sb, m0) - register struct sockbuf *sb; - register struct mbuf *m0; -{ - register struct mbuf *m; - - if (m0 == 0) - return; - m = sb->sb_mb; - if (m) - while (m->m_nextpkt) - m = m->m_nextpkt; - /* - * Put the first mbuf on the queue. - * Note this permits zero length records. - */ - sballoc(sb, m0); - if (m) - m->m_nextpkt = m0; - else - sb->sb_mb = m0; - m = m0->m_next; - m0->m_next = 0; - if (m && (m0->m_flags & M_EOR)) { - m0->m_flags &= ~M_EOR; - m->m_flags |= M_EOR; - } - sbcompress(sb, m, m0); -} - -/* - * As above except that OOB data - * is inserted at the beginning of the sockbuf, - * but after any other OOB data. - */ -void -sbinsertoob(sb, m0) - register struct sockbuf *sb; - register struct mbuf *m0; -{ - register struct mbuf *m; - register struct mbuf **mp; - - if (m0 == 0) - return; - for (mp = &sb->sb_mb; *mp ; mp = &((*mp)->m_nextpkt)) { - m = *mp; - again: - switch (m->m_type) { - - case MT_OOBDATA: - continue; /* WANT next train */ - - case MT_CONTROL: - m = m->m_next; - if (m) - goto again; /* inspect THIS train further */ - } - break; - } - /* - * Put the first mbuf on the queue. - * Note this permits zero length records. - */ - sballoc(sb, m0); - m0->m_nextpkt = *mp; - *mp = m0; - m = m0->m_next; - m0->m_next = 0; - if (m && (m0->m_flags & M_EOR)) { - m0->m_flags &= ~M_EOR; - m->m_flags |= M_EOR; - } - sbcompress(sb, m, m0); -} - -/* - * Append address and data, and optionally, control (ancillary) data - * to the receive queue of a socket. If present, - * m0 must include a packet header with total length. - * Returns 0 if no space in sockbuf or insufficient mbufs. - */ -int -sbappendaddr(sb, asa, m0, control) - register struct sockbuf *sb; - struct sockaddr *asa; - struct mbuf *m0, *control; -{ - register struct mbuf *m, *n; - int space = asa->sa_len; - -if (m0 && (m0->m_flags & M_PKTHDR) == 0) -panic("sbappendaddr"); - if (m0) - space += m0->m_pkthdr.len; - for (n = control; n; n = n->m_next) { - space += n->m_len; - if (n->m_next == 0) /* keep pointer to last control buf */ - break; - } - if (space > sbspace(sb)) - return (0); - if (asa->sa_len > MLEN) - return (0); - MGET(m, M_DONTWAIT, MT_SONAME); - if (m == 0) - return (0); - m->m_len = asa->sa_len; - bcopy((caddr_t)asa, mtod(m, caddr_t), asa->sa_len); - if (n) - n->m_next = m0; /* concatenate data to control */ - else - control = m0; - m->m_next = control; - for (n = m; n; n = n->m_next) - sballoc(sb, n); - n = sb->sb_mb; - if (n) { - while (n->m_nextpkt) - n = n->m_nextpkt; - n->m_nextpkt = m; - } else - sb->sb_mb = m; - return (1); -} - -int -sbappendcontrol(sb, m0, control) - struct sockbuf *sb; - struct mbuf *control, *m0; -{ - register struct mbuf *m, *n; - int space = 0; - - if (control == 0) - panic("sbappendcontrol"); - for (m = control; ; m = m->m_next) { - space += m->m_len; - if (m->m_next == 0) - break; - } - n = m; /* save pointer to last control buffer */ - for (m = m0; m; m = m->m_next) - space += m->m_len; - if (space > sbspace(sb)) - return (0); - n->m_next = m0; /* concatenate data to control */ - for (m = control; m; m = m->m_next) - sballoc(sb, m); - n = sb->sb_mb; - if (n) { - while (n->m_nextpkt) - n = n->m_nextpkt; - n->m_nextpkt = control; - } else - sb->sb_mb = control; - return (1); -} - -/* - * Compress mbuf chain m into the socket - * buffer sb following mbuf n. If n - * is null, the buffer is presumed empty. - */ -void -sbcompress(sb, m, n) - register struct sockbuf *sb; - register struct mbuf *m, *n; -{ - register int eor = 0; - register struct mbuf *o; - - while (m) { - eor |= m->m_flags & M_EOR; - if (m->m_len == 0 && - (eor == 0 || - (((o = m->m_next) || (o = n)) && - o->m_type == m->m_type))) { - m = m_free(m); - continue; - } - if (n && (n->m_flags & (M_EXT | M_EOR)) == 0 && - (n->m_data + n->m_len + m->m_len) < &n->m_dat[MLEN] && - n->m_type == m->m_type) { - bcopy(mtod(m, caddr_t), mtod(n, caddr_t) + n->m_len, - (unsigned)m->m_len); - n->m_len += m->m_len; - sb->sb_cc += m->m_len; - m = m_free(m); - continue; - } - if (n) - n->m_next = m; - else - sb->sb_mb = m; - sballoc(sb, m); - n = m; - m->m_flags &= ~M_EOR; - m = m->m_next; - n->m_next = 0; - } - if (eor) { - if (n) - n->m_flags |= eor; - else - printf("semi-panic: sbcompress\n"); - } -} - -/* - * Free all mbufs in a sockbuf. - * Check that all resources are reclaimed. - */ -void -sbflush(sb) - register struct sockbuf *sb; -{ - - if (sb->sb_flags & SB_LOCK) - panic("sbflush"); - while (sb->sb_mbcnt) - sbdrop(sb, (int)sb->sb_cc); - if (sb->sb_cc || sb->sb_mb) - panic("sbflush 2"); -} - -/* - * Drop data from (the front of) a sockbuf. - */ -void -sbdrop(sb, len) - register struct sockbuf *sb; - register int len; -{ - register struct mbuf *m, *mn; - struct mbuf *next; - - next = (m = sb->sb_mb) ? m->m_nextpkt : 0; - while (len > 0) { - if (m == 0) { - if (next == 0) - panic("sbdrop"); - m = next; - next = m->m_nextpkt; - continue; - } - if (m->m_len > len) { - m->m_len -= len; - m->m_data += len; - sb->sb_cc -= len; - break; - } - len -= m->m_len; - sbfree(sb, m); - MFREE(m, mn); - m = mn; - } - while (m && m->m_len == 0) { - sbfree(sb, m); - MFREE(m, mn); - m = mn; - } - if (m) { - sb->sb_mb = m; - m->m_nextpkt = next; - } else - sb->sb_mb = next; -} - -/* - * Drop a record off the front of a sockbuf - * and move the next record to the front. - */ -void -sbdroprecord(sb) - register struct sockbuf *sb; -{ - register struct mbuf *m, *mn; - - m = sb->sb_mb; - if (m) { - sb->sb_mb = m->m_nextpkt; - do { - sbfree(sb, m); - MFREE(m, mn); - m = mn; - } while (m); - } -} - -/* - * Create a "control" mbuf containing the specified data - * with the specified type for presentation on a socket buffer. - */ -struct mbuf * -sbcreatecontrol(p, size, type, level) - caddr_t p; - register int size; - int type, level; -{ - register struct cmsghdr *cp; - struct mbuf *m; - - if ((m = m_get(M_DONTWAIT, MT_CONTROL)) == NULL) - return ((struct mbuf *) NULL); - cp = mtod(m, struct cmsghdr *); - /* XXX check size? */ - (void)memcpy(CMSG_DATA(cp), p, size); - size += sizeof(*cp); - m->m_len = size; - cp->cmsg_len = size; - cp->cmsg_level = level; - cp->cmsg_type = type; - return (m); -} - -#ifdef PRU_OLDSTYLE -/* - * The following routines mediate between the old-style `pr_usrreq' - * protocol implementations and the new-style `struct pr_usrreqs' - * calling convention. - */ - -/* syntactic sugar */ -#define nomb (struct mbuf *)0 - -static int -old_abort(struct socket *so) -{ - return so->so_proto->pr_ousrreq(so, PRU_ABORT, nomb, nomb, nomb); -} - -static int -old_accept(struct socket *so, struct mbuf *nam) -{ - return so->so_proto->pr_ousrreq(so, PRU_ACCEPT, nomb, nam, nomb); -} - -static int -old_attach(struct socket *so, int proto) -{ - return so->so_proto->pr_ousrreq(so, PRU_ATTACH, nomb, - (struct mbuf *)proto, /* XXX */ - nomb); -} - -static int -old_bind(struct socket *so, struct mbuf *nam) -{ - return so->so_proto->pr_ousrreq(so, PRU_BIND, nomb, nam, nomb); -} - -static int -old_connect(struct socket *so, struct mbuf *nam) -{ - return so->so_proto->pr_ousrreq(so, PRU_CONNECT, nomb, nam, nomb); -} - -static int -old_connect2(struct socket *so1, struct socket *so2) -{ - return so1->so_proto->pr_ousrreq(so1, PRU_CONNECT2, nomb, - (struct mbuf *)so2, nomb); -} - -static int -old_control(struct socket *so, int cmd, caddr_t data, struct ifnet *ifp) -{ - return so->so_proto->pr_ousrreq(so, PRU_CONTROL, (struct mbuf *)cmd, - (struct mbuf *)data, - (struct mbuf *)ifp); -} - -static int -old_detach(struct socket *so) -{ - return so->so_proto->pr_ousrreq(so, PRU_DETACH, nomb, nomb, nomb); -} - -static int -old_disconnect(struct socket *so) -{ - return so->so_proto->pr_ousrreq(so, PRU_DISCONNECT, nomb, nomb, nomb); -} - -static int -old_listen(struct socket *so) -{ - return so->so_proto->pr_ousrreq(so, PRU_LISTEN, nomb, nomb, nomb); -} - -static int -old_peeraddr(struct socket *so, struct mbuf *nam) -{ - return so->so_proto->pr_ousrreq(so, PRU_PEERADDR, nomb, nam, nomb); -} - -static int -old_rcvd(struct socket *so, int flags) -{ - return so->so_proto->pr_ousrreq(so, PRU_RCVD, nomb, - (struct mbuf *)flags, /* XXX */ - nomb); -} - -static int -old_rcvoob(struct socket *so, struct mbuf *m, int flags) -{ - return so->so_proto->pr_ousrreq(so, PRU_RCVOOB, m, - (struct mbuf *)flags, /* XXX */ - nomb); -} - -static int -old_send(struct socket *so, int flags, struct mbuf *m, struct mbuf *addr, - struct mbuf *control) -{ - int req; - - if (flags & PRUS_OOB) { - req = PRU_SENDOOB; - } else if(flags & PRUS_EOF) { - req = PRU_SEND_EOF; - } else { - req = PRU_SEND; - } - return so->so_proto->pr_ousrreq(so, req, m, addr, control); -} - -static int -old_sense(struct socket *so, struct stat *sb) -{ - return so->so_proto->pr_ousrreq(so, PRU_SENSE, (struct mbuf *)sb, - nomb, nomb); -} - -static int -old_shutdown(struct socket *so) -{ - return so->so_proto->pr_ousrreq(so, PRU_SHUTDOWN, nomb, nomb, nomb); -} - -static int -old_sockaddr(struct socket *so, struct mbuf *nam) -{ - return so->so_proto->pr_ousrreq(so, PRU_SOCKADDR, nomb, nam, nomb); -} - -struct pr_usrreqs pru_oldstyle = { - old_abort, old_accept, old_attach, old_bind, old_connect, - old_connect2, old_control, old_detach, old_disconnect, - old_listen, old_peeraddr, old_rcvd, old_rcvoob, old_send, - old_sense, old_shutdown, old_sockaddr -}; - -#endif /* PRU_OLDSTYLE */ - -/* - * Some routines that return EOPNOTSUPP for entry points that are not - * supported by a protocol. Fill in as needed. - */ -int -pru_accept_notsupp(struct socket *so, struct mbuf *nam) -{ - return EOPNOTSUPP; -} - -int -pru_connect2_notsupp(struct socket *so1, struct socket *so2) -{ - return EOPNOTSUPP; -} - -int -pru_control_notsupp(struct socket *so, int cmd, caddr_t data, - struct ifnet *ifp) -{ - return EOPNOTSUPP; -} - -int -pru_listen_notsupp(struct socket *so) -{ - return EOPNOTSUPP; -} - -int -pru_rcvd_notsupp(struct socket *so, int flags) -{ - return EOPNOTSUPP; -} - -int -pru_rcvoob_notsupp(struct socket *so, struct mbuf *m, int flags) -{ - return EOPNOTSUPP; -} - -/* - * This isn't really a ``null'' operation, but it's the default one - * and doesn't do anything destructive. - */ -int -pru_sense_null(struct socket *so, struct stat *sb) -{ - sb->st_blksize = so->so_snd.sb_hiwat; - return 0; -} - |