core-admin/qvm-tools/qvm-pci
Marek Marczykowski-Górecki 67ca619ee5
qvm-pci: fix PCI device id (BDF) regexp
Actually BDF is in hex...

Fixes QubesOS/qubes-issues#1461
2015-11-27 22:56:55 +01:00

140 lines
4.4 KiB
Python
Executable File

#!/usr/bin/python2
# -*- encoding: utf8 -*-
#
# The Qubes OS Project, http://www.qubes-os.org
#
# Copyright (C) 2010 Marek Marczykowski <marmarek@mimuw.edu.pl>
#
# 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 qubes.qubes import QubesVmCollection
from optparse import OptionParser
import subprocess
import os
import sys
from qubes.qubes import vmm
import re
def find_devices_of_class(klass):
p = subprocess.Popen(["/sbin/lspci", "-mm", "-n"], stdout=subprocess.PIPE)
result = p.communicate()
retcode = p.returncode
if retcode != 0:
print "ERROR when executing lspci!"
raise IOError
rx_netdev = re.compile(r"^([0-9a-f]{2}:[0-9a-f]{2}.[0-9a-f]) \"" +
klass)
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
yield dev_bdf
def main():
usage = "usage: %prog -l [options] <vm-name>\n"\
"usage: %prog -a [options] <vm-name> <device>\n"\
"usage: %prog -d [options] <vm-name> <device>\n"\
"List/set VM PCI devices."
parser = OptionParser (usage)
parser.add_option ("-l", "--list", action="store_true", dest="do_list", default=False)
parser.add_option ("-a", "--add", action="store_true", dest="do_add", default=False)
parser.add_option ("-d", "--delete", action="store_true", dest="do_delete", default=False)
parser.add_option("-C", "--add-class", action="store_true",
dest="do_add_class", default=False,
help="Add all devices of given class (net, usb)")
parser.add_option ("--offline-mode", dest="offline_mode",
action="store_true", default=False,
help="Offline mode")
(options, args) = parser.parse_args ()
if (len (args) < 1):
parser.error ("You must provide at least the vmname!")
vmname = args[0]
if options.do_list + options.do_add + options.do_delete + \
options.do_add_class > 1:
print >> sys.stderr, "Only one of -l -a -d -C is allowed!"
exit(1)
if options.offline_mode:
vmm.offline_mode = True
if options.do_add or options.do_delete or options.add_class:
qvm_collection = QubesVmCollection()
qvm_collection.lock_db_for_writing()
qvm_collection.load()
else:
qvm_collection = QubesVmCollection()
qvm_collection.lock_db_for_reading()
qvm_collection.load()
qvm_collection.unlock_db()
vm = qvm_collection.get_vm_by_name(vmname)
if vm is None or vm.qid not in qvm_collection:
print >> sys.stderr, "A VM with the name '{0}' does not exist in the system.".format(vmname)
exit(1)
if options.do_add:
if len (args) < 2:
print >> sys.stderr, "You must specify the PCI device to add"
exit (1)
pci = args[1]
vm.pci_add(pci)
qvm_collection.save()
qvm_collection.unlock_db()
elif options.do_add_class:
if len(args) < 2:
print >> sys.stderr, "You must specify the PCI device class to add"
exit(1)
klass = args[1]
if klass == 'net':
devs = find_devices_of_class("02")
elif klass == 'usb':
devs = find_devices_of_class("0c03")
else:
print >> sys.stderr, "Supported classes: net, usb"
exit(1)
for dev in devs:
vm.pci_add(dev)
elif options.do_delete:
if len (args) < 2:
print >> sys.stderr, "You must specify the PCI device to delete"
exit (1)
pci = args[1]
vm.pci_remove(pci)
qvm_collection.save()
qvm_collection.unlock_db()
else:
# do_list
print str(vm.pcidevs)
main()