core-admin/qvm-tools/qvm-sync-clock
2014-04-15 04:14:45 +02:00

102 lines
3.5 KiB
Python
Executable File

#!/usr/bin/python2
#
# The Qubes OS Project, http://www.qubes-os.org
#
# Copyright (C) 2010 Marek Marczykowski <marmarek@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 qubes.qubes import QubesVmCollection
import os.path
import os
import sys
import re
import subprocess
qvm_collection = None
def get_netvm_of_vm(vm):
netvm = vm
while netvm.netvm is not None:
netvm = netvm.netvm
if netvm is None or netvm.name == 'dom0':
print >> sys.stderr, 'There seems to be no network connected to ClockVM, aborting.'
sys.exit(1)
return netvm
def main():
verbose = False
if len(sys.argv) > 1 and sys.argv[1] in [ '--verbose', '-v' ]:
verbose = True
qvm_collection = QubesVmCollection()
qvm_collection.lock_db_for_reading()
qvm_collection.load()
qvm_collection.unlock_db()
clock_vm = qvm_collection.get_clockvm_vm()
if clock_vm is None:
print >> sys.stderr, 'There is no selected ClockVM, aborting.'
sys.exit(1)
if not clock_vm.is_running():
print >> sys.stderr, 'ClockVM not started, exiting!'
sys.exit(1)
net_vm = get_netvm_of_vm(clock_vm)
if verbose:
print >> sys.stderr, '--> Waiting for network for ClockVM.'
# Ignore retcode, try even if nm-online failed - user can setup network manually
# on-online has timeout 30sec by default
net_vm.run('nm-online -x', verbose=verbose, wait=True, ignore_stderr=True)
# Sync clock
if clock_vm.run('QUBESRPC qubes.SyncNtpClock dom0', user="root", verbose=verbose, wait=True, ignore_stderr=True) != 0:
print >> sys.stderr, 'Time sync failed, aborting!'
sys.exit(1)
# Use the date format based on RFC2822 to avoid localisation issues
p = clock_vm.run('date -u -R', verbose=verbose, passio_popen=True, ignore_stderr=True)
date_out = p.stdout.read(100)
date_out = date_out.strip()
if not re.match(r'^[A-Za-z]+[,] [0-9][0-9] [A-Za-z]+ [0-9][0-9][0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9] [+]0000$', date_out):
print >> sys.stderr, 'Invalid date output, aborting!'
sys.exit(1)
# Sync dom0 time
if verbose:
print >> sys.stderr, '--> Syncing dom0 clock.'
subprocess.check_call(['sudo', 'date', '-u', '-R', '-s', date_out])
subprocess.check_call(['sudo', 'hwclock', '--systohc'])
# Sync other VMs clock
for vm in qvm_collection.values():
if vm.is_running() and vm.qid != 0 and vm.qid != clock_vm.qid:
if verbose:
print >> sys.stderr, '--> Syncing \'%s\' clock.' % vm.name
try:
vm.run('date -u -R -s "%s"' % date_out, user="root", verbose=verbose)
except Exception as e:
print >> sys.stderr, "ERROR syncing time in VM '%s': %s" % (vm.name, str(e))
pass
main()