c789121f84
This is core part of migration. Things not migrated yet: - DispVM (qubes_restore needs to be almost rewritten) - VM xen config files should be fixed (use "script:" prefix in block device description, perhaps generate this files on VM start) Huge, slow xend not needed any more, now it conflicts with libxl
138 lines
5.3 KiB
Python
Executable File
138 lines
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/xl', 'destroy', dispname])
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qfile.remove_disposable_from_qdb(dispname)
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main()
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