RCS_ID_C="$Id: raw_cb.c,v 1.7 1993/06/04 11:16:15 jraja Exp $"; /* * Copyright (c) 1993 AmiTCP/IP Group, , * Helsinki University of Technology, Finland. * All rights reserved. * * raw_cb.c --- Raw Socket Control Blocks * * Last modified: Fri Jun 4 00:39:07 1993 jraja * * HISTORY * $Log: raw_cb.c,v $ * Revision 1.7 1993/06/04 11:16:15 jraja * Fixes for first public release. * * Revision 1.6 1993/05/16 21:09:43 ppessi * RCS version changed. * * Revision 1.5 1993/05/05 16:10:29 puhuri * Fixes for final demo. * * Revision 1.4 93/04/05 17:46:13 17:46:13 jraja (Jarno Tapio Rajahalme) * Changed spl storage variables to spl_t. * Changed every .c file to use conf.h. * * Revision 1.3 93/03/05 03:12:44 03:12:44 ppessi (Pekka Pessi) * Compiles with SASC. Initial test version * * Revision 1.2 93/02/25 19:52:21 19:52:21 ppessi (Pekka Pessi) * Added prototypes * * Revision 1.1 92/11/20 13:32:31 13:32:31 jraja (Jarno Tapio Rajahalme) * Initial revision * * */ /* * Mach Operating System * Copyright (c) 1992 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* * HISTORY * Log: raw_cb.c,v * Revision 2.1 92/04/21 17:13:41 rwd * BSDSS * * */ /* * Copyright (c) 1980, 1986 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 7.11 (Berkeley) 6/28/90 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* --- start moved from raw_cb.h --- */ struct rawcb rawcb = {0}; /* head of list */ /* --- end moved from 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 */ u_long raw_sendspace = RAWSNDQ; u_long raw_recvspace = RAWRCVQ; /* * Allocate a control block and a nominal amount * of buffer space for the socket. */ int raw_attach(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); if (error = soreserve(so, raw_sendspace, raw_recvspace)) return (error); rp->rcb_socket = so; rp->rcb_proto.sp_family = so->so_proto->pr_domain->dom_family; rp->rcb_proto.sp_protocol = proto; insque(rp, &rawcb); return (0); } /* * Detach the raw connection block and discard * socket resources. */ void raw_detach(register struct rawcb *rp) { struct socket *so = rp->rcb_socket; so->so_pcb = 0; sofree(so); remque(rp); #ifdef notdef if (rp->rcb_laddr) m_freem(dtom(rp->rcb_laddr)); rp->rcb_laddr = 0; #endif bsd_free((caddr_t)(rp), M_PCB); } /* * Disconnect and possibly release resources. */ void raw_disconnect(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 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