2009-04-23 11:51:53 +00:00
|
|
|
/*-
|
|
|
|
|
* Copyright (c) 2009 Robert N. M. Watson
|
|
|
|
|
* 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.
|
|
|
|
|
*
|
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* When an interface has been detached but not yet freed, we set the various
|
|
|
|
|
* ifnet function pointers to "ifdead" versions. This prevents unexpected
|
|
|
|
|
* calls from the network stack into the device driver after if_detach() has
|
|
|
|
|
* returned.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
|
|
|
|
|
|
#include <sys/param.h>
|
|
|
|
|
#include <sys/mbuf.h>
|
|
|
|
|
#include <sys/socket.h>
|
|
|
|
|
|
|
|
|
|
#include <net/if.h>
|
|
|
|
|
#include <net/if_var.h>
|
|
|
|
|
|
|
|
|
|
static int
|
2013-04-26 12:50:32 +00:00
|
|
|
ifdead_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *sa,
|
2009-04-23 11:51:53 +00:00
|
|
|
struct route *ro)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
m_freem(m);
|
|
|
|
|
return (ENXIO);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
ifdead_input(struct ifnet *ifp, struct mbuf *m)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
m_freem(m);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
ifdead_start(struct ifnet *ifp)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
ifdead_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
return (ENXIO);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
ifdead_resolvemulti(struct ifnet *ifp, struct sockaddr **llsa,
|
|
|
|
|
struct sockaddr *sa)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
*llsa = NULL;
|
|
|
|
|
return (ENXIO);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
ifdead_qflush(struct ifnet *ifp)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
ifdead_transmit(struct ifnet *ifp, struct mbuf *m)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
m_freem(m);
|
|
|
|
|
return (ENXIO);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
if_dead(struct ifnet *ifp)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
ifp->if_output = ifdead_output;
|
|
|
|
|
ifp->if_input = ifdead_input;
|
|
|
|
|
ifp->if_start = ifdead_start;
|
|
|
|
|
ifp->if_ioctl = ifdead_ioctl;
|
|
|
|
|
ifp->if_resolvemulti = ifdead_resolvemulti;
|
|
|
|
|
ifp->if_qflush = ifdead_qflush;
|
|
|
|
|
ifp->if_transmit = ifdead_transmit;
|
|
|
|
|
}
|
