137 خطوط
5.3 KiB
Python
Executable File
137 خطوط
5.3 KiB
Python
Executable File
#!/usr/bin/python2.6
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2010 Rafal Wojtczuk <rafal@invisiblethingslab.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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import os
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import dbus
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import subprocess
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import sys
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import fcntl
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from qubes.qubes import QubesVmCollection
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from qubes.qubes import QubesException
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from qubes.qubes import QubesDaemonPidfile
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from qubes.qmemman_client import QMemmanClient
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current_savefile = '/var/run/qubes/current_savefile'
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notify_object = None
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class QfileDaemonDvm:
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def __init__(self, name):
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self.name = name
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def do_get_dvm(self):
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qmemman_client = QMemmanClient()
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if not qmemman_client.request_memory(400*1024*1024):
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qmemman_client.close()
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errmsg = 'Not enough memory to create DVM. '
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errmsg +='Terminate some appVM and retry.'
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subprocess.call(['/usr/bin/kdialog', '--sorry', errmsg])
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return None
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qvm_collection = QubesVmCollection()
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qvm_collection.lock_db_for_writing()
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qvm_collection.load()
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vm = qvm_collection.get_vm_by_name(self.name)
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if vm is None:
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sys.stderr.write( 'Domain ' + vmname + ' does not exist ?')
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qvm_collection.unlock_db()
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qmemman_client.close()
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return None
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retcode = subprocess.call(['/usr/lib/qubes/qubes_restore',
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current_savefile,
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'-c', vm.label.color,
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'-i', vm.label.icon,
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'-l', str(vm.label.index)])
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qmemman_client.close()
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if retcode != 0:
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subprocess.call(['/usr/bin/kdialog', '--sorry', 'DisposableVM creation failed, see qubes_restore.log'])
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qvm_collection.unlock_db()
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return None
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f = open('/var/run/qubes/dispVM_xid', 'r');
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disp_xid = f.readline().rstrip('\n')
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disp_name = f.readline().rstrip('\n')
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disptempl = f.readline().rstrip('\n')
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f.close()
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vm_disptempl = qvm_collection.get_vm_by_name(disptempl);
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if vm_disptempl is None:
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sys.stderr.write( 'Domain ' + disptempl + ' does not exist ?')
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qvm_collection.unlock_db()
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return None
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qvm_collection.add_new_disposablevm(disp_name, vm_disptempl.template_vm, label=vm.label)
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qvm_collection.save()
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qvm_collection.unlock_db()
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return disp_name
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def dvm_setup_ok(self):
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dvmdata_dir = '/var/lib/qubes/dvmdata/'
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if not os.path.isfile(current_savefile):
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return False
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if not os.path.isfile(dvmdata_dir+'default_savefile') or not os.path.isfile(dvmdata_dir+'savefile_root'):
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return False
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dvm_mtime = os.stat(current_savefile).st_mtime
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root_mtime = os.stat(dvmdata_dir+'savefile_root').st_mtime
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if dvm_mtime < root_mtime:
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return False
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return True
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def tray_notify(self, str, timeout = 3000):
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notify_object.Notify("Qubes", 0, "red", "Qubes", str, [], [], timeout, dbus_interface="org.freedesktop.Notifications")
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def tray_notify_error(self, str, timeout = 3000):
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notify_object.Notify("Qubes", 0, "dialog-error", "Qubes", str, [], [], timeout, dbus_interface="org.freedesktop.Notifications")
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def get_dvm(self):
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if not self.dvm_setup_ok():
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self.tray_notify("Updating DisposableVM savefile, please wait", 120000)
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if os.system("qvm-create-default-dvm --default-template --default-script >/var/run/qubes/qvm-create-default-dvm.stdout </dev/null" ) != 0:
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self.tray_notify_error("DVM savefile creation failed")
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return None
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return self.do_get_dvm()
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def remove_disposable_from_qdb(self, name):
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qvm_collection = QubesVmCollection()
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qvm_collection.lock_db_for_writing()
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qvm_collection.load()
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vm = qvm_collection.get_vm_by_name(name)
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if vm is None:
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qvm_collection.unlock_db()
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return False
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qvm_collection.pop(vm.qid)
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qvm_collection.save()
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qvm_collection.unlock_db()
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def main():
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global notify_object
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notify_object = dbus.SessionBus().get_object("org.freedesktop.Notifications", "/org/freedesktop/Notifications")
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qfile = QfileDaemonDvm(os.getenv("QREXEC_REMOTE_DOMAIN"))
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lockf = open("/var/run/qubes/qfile-daemon-dvm.lock", 'a')
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fcntl.flock(lockf, fcntl.LOCK_EX)
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dispname = qfile.get_dvm()
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lockf.close()
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if dispname is not None:
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subprocess.call(['/usr/lib/qubes/qrexec_client', '-d', dispname, 'directly:user:/usr/lib/qubes/dvm_file_editor'])
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subprocess.call(['/usr/sbin/xm', 'destroy', dispname])
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qfile.remove_disposable_from_qdb(dispname)
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main()
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