4421f50dbc
result, raw_uabort() now needs to call raw_detach() directly. As raw_uabort() is never called, and raw_disconnect() is probably not ever actually called in practice, this is likely not a functional change, but improves congruence between protocols, and avoids a NULL raw cb pointer after disconnect, which could result in a panic. MFC after: 1 month
149 lines
3.8 KiB
C
149 lines
3.8 KiB
C
/*-
|
|
* 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.
|
|
* 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
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/systm.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 mtx rawcb_mtx;
|
|
struct rawcb_list_head rawcb_list;
|
|
|
|
const static u_long raw_sendspace = RAWSNDQ;
|
|
const static u_long raw_recvspace = RAWRCVQ;
|
|
|
|
/*
|
|
* 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;
|
|
mtx_lock(&rawcb_mtx);
|
|
LIST_INSERT_HEAD(&rawcb_list, rp, list);
|
|
mtx_unlock(&rawcb_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;
|
|
|
|
KASSERT(so->so_pcb == rp, ("raw_detach: so_pcb != rp"));
|
|
|
|
so->so_pcb = NULL;
|
|
mtx_lock(&rawcb_mtx);
|
|
LIST_REMOVE(rp, list);
|
|
mtx_unlock(&rawcb_mtx);
|
|
#ifdef notdef
|
|
if (rp->rcb_laddr)
|
|
m_freem(dtom(rp->rcb_laddr));
|
|
rp->rcb_laddr = 0;
|
|
#endif
|
|
free((caddr_t)(rp), M_PCB);
|
|
}
|
|
|
|
/*
|
|
* Disconnect raw socket.
|
|
*/
|
|
void
|
|
raw_disconnect(rp)
|
|
struct rawcb *rp;
|
|
{
|
|
|
|
#ifdef notdef
|
|
if (rp->rcb_faddr)
|
|
m_freem(dtom(rp->rcb_faddr));
|
|
rp->rcb_faddr = 0;
|
|
#endif
|
|
}
|
|
|
|
#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_TRYWAIT);
|
|
rp->rcb_laddr = mtod(nam, struct sockaddr *);
|
|
return (0);
|
|
}
|
|
#endif
|