b1e4abd246
vnodes. This will hopefully serve as a base from which we can expand the MP code. We currently do not attempt to obtain any mutex or SX locks, but the door is open to add them when we nail down exactly how that part of it is going to work.
146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
/*
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* Copyright (c) 1980, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)raw_cb.c 8.1 (Berkeley) 6/10/93
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/malloc.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/domain.h>
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#include <sys/protosw.h>
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#include <net/raw_cb.h>
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/*
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* Routines to manage the raw protocol control blocks.
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*
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* TODO:
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* hash lookups by protocol family/protocol + address family
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* take care of unique address problems per AF?
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* redo address binding to allow wildcards
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*/
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struct rawcb_list_head rawcb_list;
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static u_long raw_sendspace = RAWSNDQ;
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static u_long raw_recvspace = RAWRCVQ;
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/*
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* Allocate a control block and a nominal amount
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* of buffer space for the socket.
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*/
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int
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raw_attach(so, proto)
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register struct socket *so;
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int proto;
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{
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register struct rawcb *rp = sotorawcb(so);
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int error;
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/*
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* It is assumed that raw_attach is called
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* after space has been allocated for the
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* rawcb.
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*/
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if (rp == 0)
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return (ENOBUFS);
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error = soreserve(so, raw_sendspace, raw_recvspace);
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if (error)
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return (error);
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rp->rcb_socket = so;
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rp->rcb_proto.sp_family = so->so_proto->pr_domain->dom_family;
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rp->rcb_proto.sp_protocol = proto;
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LIST_INSERT_HEAD(&rawcb_list, rp, list);
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return (0);
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}
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/*
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* Detach the raw connection block and discard
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* socket resources.
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*/
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void
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raw_detach(rp)
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register struct rawcb *rp;
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{
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struct socket *so = rp->rcb_socket;
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so->so_pcb = 0;
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sotryfree(so);
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LIST_REMOVE(rp, list);
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#ifdef notdef
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if (rp->rcb_laddr)
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m_freem(dtom(rp->rcb_laddr));
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rp->rcb_laddr = 0;
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#endif
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free((caddr_t)(rp), M_PCB);
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}
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/*
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* Disconnect and possibly release resources.
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*/
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void
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raw_disconnect(rp)
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struct rawcb *rp;
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{
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#ifdef notdef
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if (rp->rcb_faddr)
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m_freem(dtom(rp->rcb_faddr));
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rp->rcb_faddr = 0;
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#endif
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if (rp->rcb_socket->so_state & SS_NOFDREF)
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raw_detach(rp);
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}
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#ifdef notdef
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#include <sys/mbuf.h>
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int
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raw_bind(so, nam)
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register struct socket *so;
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struct mbuf *nam;
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{
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struct sockaddr *addr = mtod(nam, struct sockaddr *);
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register struct rawcb *rp;
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if (ifnet == 0)
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return (EADDRNOTAVAIL);
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rp = sotorawcb(so);
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nam = m_copym(nam, 0, M_COPYALL, M_WAITOK);
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rp->rcb_laddr = mtod(nam, struct sockaddr *);
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return (0);
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}
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#endif
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