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- #!/usr/bin/python2.6
- #
- # The Qubes OS Project, http://www.qubes-os.org
- #
- # Copyright (C) 2010 Joanna Rutkowska <joanna@invisiblethingslab.com>
- #
- # This program is free software; you can redistribute it and/or
- # modify it under the terms of the GNU General Public License
- # as published by the Free Software Foundation; either version 2
- # of the License, or (at your option) any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- #
- #
- from optparse import OptionParser
- import subprocess
- import shutil
- import re
- def find_net_devices():
- p = subprocess.Popen (["lspci", "-mm", "-n"], stdout=subprocess.PIPE)
- result = p.communicate()
- retcode = p.returncode
- if (retcode != 0):
- print "ERROR when executing lspci!"
- raise IOError
- net_devices = set()
- rx_netdev = re.compile (r"^([0-9a-f][0-9a-f]:[0-9a-f][0-9a-f].[0-9]) \"02")
- for dev in str(result[0]).splitlines():
- match = rx_netdev.match (dev)
- if match is not None:
- dev_bdf = match.group(1)
- assert dev_bdf is not None
- net_devices.add (dev_bdf)
- return net_devices
- def main():
- usage = "usage: %prog [options] <netvm-name>"
- parser = OptionParser (usage)
- parser.add_option ("-v", "--verbose", dest="verbose", action="store_true", default=False)
- (options, args) = parser.parse_args ()
- if options.verbose:
- print "Loading Xen PCI Backend..."
- retcode = subprocess.call (["/sbin/modprobe", "xen-pciback"])
- if retcode != 0:
- retcode = subprocess.call (["/sbin/modprobe", "pciback"])
- if retcode != 0:
- print "ERROR: Cannot load xen-pciback module!"
- exit(1)
- if options.verbose:
- print "Unbinding the following net devices:"
- net_devices = find_net_devices()
- for dev in net_devices:
- if options.verbose:
- print "--> {0}".format(dev)
- retcode = subprocess.call (["/usr/lib/qubes/unbind_pci_device.sh", dev])
- if (retcode != 0):
- print "WARNING: Could not unbind device {0}".format(dev)
- main()
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