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- #!/usr/bin/python2
- # -*- encoding: utf8 -*-
- #
- # 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.
- #
- #
- import fcntl
- from optparse import OptionParser
- 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():
- parser = OptionParser()
- parser.add_option ("-v", "--verbose", action="store_true", dest="verbose", default=False)
- parser.add_option ("-f", "--force", action="store_true", dest="force", default=False)
- (options, args) = parser.parse_args ()
- lockfile_name = "/var/run/qubes/qvm-sync-clock.lock"
- if os.path.exists(lockfile_name):
- lockfile = open(lockfile_name, "r")
- else:
- lockfile = open(lockfile_name, "w")
- fcntl.fcntl(lockfile.fileno(), fcntl.F_SETFD, fcntl.FD_CLOEXEC)
- try:
- fcntl.flock(lockfile.fileno(), fcntl.LOCK_EX | fcntl.LOCK_NB)
- except IOError:
- print >>sys.stderr, "qvm-sync-clock already running, aborting"
- sys.exit(1)
-
- 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 options.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=options.verbose, gui=False, wait=True,
- ignore_stderr=True)
- # Sync clock
- if clock_vm.run('QUBESRPC qubes.SyncNtpClock dom0', user="root",
- verbose=options.verbose, gui=False, wait=True, ignore_stderr=True) \
- != 0:
- if options.force:
- print >> sys.stderr, 'Time sync failed! - Syncing with dom0 ' \
- 'anyway as requested'
- else:
- print >> sys.stderr, 'Time sync failed! - Exiting'
- sys.exit(1)
- else:
- # Use the date format based on RFC2822 to avoid localisation issues
- p = clock_vm.run('date -u -Iseconds', verbose=options.verbose,
- gui=False, passio_popen=True, ignore_stderr=True)
- date_out = p.stdout.read(100)
- date_out = date_out.strip()
- if not re.match(r'^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\+0000$', date_out):
- print >> sys.stderr, 'Invalid date output, aborting!'
- sys.exit(1)
- # Sync dom0 time
- if options.verbose:
- print >> sys.stderr, '--> Syncing dom0 clock.'
- subprocess.check_call(['sudo', 'date', '-u', '-Iseconds', '-s', date_out],
- stdout=None if options.verbose else open(os.devnull, 'w'))
- subprocess.check_call(['sudo', 'hwclock', '--systohc'],
- stdout=None if options.verbose else open(os.devnull, 'w'))
- # 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 options.verbose:
- print >> sys.stderr, '--> Syncing \'%s\' clock.' % vm.name
- try:
- vm.run_service("qubes.SetDateTime", user="root",
- localcmd="date -u -Iseconds")
- except Exception as e:
- print >> sys.stderr, "ERROR syncing time in VM '%s': %s" % (vm.name, str(e))
- pass
- # order is important!
- os.unlink(lockfile_name)
- lockfile.close()
- main()
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