/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1992, 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. * * @(#)idrp_usrreq.c 8.1 (Berkeley) 6/10/93 */ #include <sys/param.h> #include <sys/proc.h> #include <sys/systm.h> #include <sys/malloc.h> #include <sys/mbuf.h> #include <sys/socket.h> #include <sys/socketvar.h> #include <sys/protosw.h> #include <sys/errno.h> #include <net/route.h> #include <net/if.h> #include <netiso/argo_debug.h> #include <netiso/iso.h> #include <netiso/clnp.h> #include <netiso/clnl.h> #include <netiso/iso_pcb.h> #include <netiso/iso_var.h> int idrp_input(); struct isopcb idrp_isop; static struct sockaddr_iso idrp_addrs[2] = { { sizeof(idrp_addrs), AF_ISO, }, { sizeof(idrp_addrs[1]), AF_ISO, } }; /* * IDRP initialization */ idrp_init() { extern struct clnl_protosw clnl_protox[256]; idrp_isop.isop_next = idrp_isop.isop_prev = &idrp_isop; idrp_isop.isop_faddr = &idrp_isop.isop_sfaddr; idrp_isop.isop_laddr = &idrp_isop.isop_sladdr; idrp_isop.isop_sladdr = idrp_addrs[1]; idrp_isop.isop_sfaddr = idrp_addrs[1]; clnl_protox[ISO10747_IDRP].clnl_input = idrp_input; } /* * CALLED FROM: * tpclnp_input(). * FUNCTION and ARGUMENTS: * Take a packet (m) from clnp, strip off the clnp header * and mke suitable for the idrp socket. * No return value. */ idrp_input(m, src, dst) register struct mbuf *m; struct sockaddr_iso *src, *dst; { if (idrp_isop.isop_socket == 0) { bad: m_freem(m); return 0; } bzero(idrp_addrs[0].siso_data, sizeof(idrp_addrs[0].siso_data)); bcopy((caddr_t)&(src->siso_addr), (caddr_t)&idrp_addrs[0].siso_addr, 1 + src->siso_nlen); bzero(idrp_addrs[1].siso_data, sizeof(idrp_addrs[1].siso_data)); bcopy((caddr_t)&(dst->siso_addr), (caddr_t)&idrp_addrs[1].siso_addr, 1 + dst->siso_nlen); if (sbappendaddr(&idrp_isop.isop_socket->so_rcv, (struct sockaddr *)idrp_addrs, m, (struct mbuf *)0) == 0) goto bad; sorwakeup(idrp_isop.isop_socket); return 0; } idrp_output(m, addr) struct mbuf *m, *addr; { register struct sockaddr_iso *siso = mtod(addr, struct sockaddr_iso *); int s = splnet(), i; bcopy((caddr_t)&(siso->siso_addr), (caddr_t)&idrp_isop.isop_sfaddr.siso_addr, 1 + siso->siso_nlen); siso++; bcopy((caddr_t)&(siso->siso_addr), (caddr_t)&idrp_isop.isop_sladdr.siso_addr, 1 + siso->siso_nlen); i = clnp_output(m, idrp_isop, m->m_pkthdr.len, 0); splx(s); return (i); } u_long idrp_sendspace = 3072; /* really max datagram size */ u_long idrp_recvspace = 40 * 1024; /* 40 1K datagrams */ /*ARGSUSED*/ idrp_usrreq(so, req, m, addr, control) struct socket *so; int req; struct mbuf *m, *addr, *control; { int error = 0; /* Note: need to block idrp_input while changing * the udp pcb queue and/or pcb addresses. */ switch (req) { case PRU_ATTACH: if (idrp_isop.isop_socket != NULL) { error = ENXIO; break; } idrp_isop.isop_socket = so; error = soreserve(so, idrp_sendspace, idrp_recvspace); break; case PRU_SHUTDOWN: socantsendmore(so); break; case PRU_SEND: return (idrp_output(m, addr)); case PRU_ABORT: soisdisconnected(so); case PRU_DETACH: idrp_isop.isop_socket = 0; break; case PRU_SENSE: /* * stat: don't bother with a blocksize. */ return (0); default: return (EOPNOTSUPP); /* do not free mbuf's */ } release: if (control) { printf("idrp control data unexpectedly retained\n"); m_freem(control); } if (m) m_freem(m); return (error); }