/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1980, 1986, 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. * * @(#)raw_cb.c 8.1 (Berkeley) 6/10/93 */ #include <sys/param.h> #include <sys/malloc.h> #include <sys/socket.h> #include <sys/socketvar.h> #include <sys/domain.h> #include <sys/protosw.h> #include <kern/locks.h> #include <net/raw_cb.h> /* * Routines to manage the raw protocol control blocks. * * TODO: * hash lookups by protocol family/protocol + address family * take care of unique address problems per AF? * redo address binding to allow wildcards */ struct rawcb_list_head rawcb_list; static u_long raw_sendspace = RAWSNDQ; static u_long raw_recvspace = RAWRCVQ; extern lck_mtx_t *raw_mtx; /*### global raw cb mutex for now */ /* * Allocate a control block and a nominal amount * of buffer space for the socket. */ int raw_attach(so, proto) register struct socket *so; int proto; { register struct rawcb *rp = sotorawcb(so); int error; /* * It is assumed that raw_attach is called * after space has been allocated for the * rawcb. */ if (rp == 0) return (ENOBUFS); error = soreserve(so, raw_sendspace, raw_recvspace); if (error) return (error); rp->rcb_socket = so; rp->rcb_proto.sp_family = so->so_proto->pr_domain->dom_family; rp->rcb_proto.sp_protocol = proto; lck_mtx_lock(raw_mtx); LIST_INSERT_HEAD(&rawcb_list, rp, list); lck_mtx_unlock(raw_mtx); return (0); } /* * Detach the raw connection block and discard * socket resources. */ void raw_detach(rp) register struct rawcb *rp; { struct socket *so = rp->rcb_socket; so->so_pcb = 0; so->so_flags |= SOF_PCBCLEARING; sofree(so); if (!lck_mtx_try_lock(raw_mtx)) { socket_unlock(so, 0); lck_mtx_lock(raw_mtx); socket_lock(so, 0); } LIST_REMOVE(rp, list); lck_mtx_unlock(raw_mtx); #ifdef notdef if (rp->rcb_laddr) m_freem(dtom(rp->rcb_laddr)); rp->rcb_laddr = 0; #endif rp->rcb_socket = NULL; FREE((caddr_t)(rp), M_PCB); } /* * Disconnect and possibly release resources. */ void raw_disconnect(rp) struct rawcb *rp; { #ifdef notdef if (rp->rcb_faddr) m_freem(dtom(rp->rcb_faddr)); rp->rcb_faddr = 0; #endif if (rp->rcb_socket->so_state & SS_NOFDREF) raw_detach(rp); } #ifdef notdef #include <sys/mbuf.h> int raw_bind(so, nam) register struct socket *so; struct mbuf *nam; { struct sockaddr *addr = mtod(nam, struct sockaddr *); register struct rawcb *rp; if (ifnet == 0) return (EADDRNOTAVAIL); rp = sotorawcb(so); nam = m_copym(nam, 0, M_COPYALL, M_WAITOK); rp->rcb_laddr = mtod(nam, struct sockaddr *); return (0); } #endif