347 lines
12 KiB
Python
347 lines
12 KiB
Python
#!/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) 2012 Agnieszka Kostrzewa <agnieszka.kostrzewa@gmail.com>
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# Copyright (C) 2012 Marek Marczykowski <marmarek@mimuw.edu.pl>
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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 sys
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import os
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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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.qubes import QubesHost
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from qubes.qubes import qubes_kernels_base_dir
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import qubesmanager.resources_rc
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from pyinotify import WatchManager, Notifier, ThreadedNotifier, EventsCodes, ProcessEvent
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import subprocess
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import time
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import threading
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from operator import itemgetter
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from ui_globalsettingsdlg import *
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from ConfigParser import SafeConfigParser
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from qubes.qubesutils import parse_size
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from qubes import qmemman_algo
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dont_keep_dvm_in_memory_path = '/var/lib/qubes/dvmdata/dont_use_shm'
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qmemman_config_path = '/etc/qubes/qmemman.conf'
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class GlobalSettingsWindow(Ui_GlobalSettings, QDialog):
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def __init__(self, app, qvm_collection, parent=None):
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super(GlobalSettingsWindow, self).__init__(parent)
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self.app = app
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self.qvm_collection = qvm_collection
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self.setupUi(self)
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self.connect(self.buttonBox, SIGNAL("accepted()"), self.save_and_apply)
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self.connect(self.buttonBox, SIGNAL("rejected()"), self.reject)
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self.__init_system_defaults__()
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self.__init_kernel_defaults__()
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self.__init_mem_defaults__()
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def __init_system_defaults__(self):
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#updatevm and clockvm
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all_vms = [vm for vm in self.qvm_collection.values() if not vm.internal]
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self.updatevm_idx = -1
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current_update_vm = self.qvm_collection.get_updatevm_vm()
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for (i, vm) in enumerate(all_vms):
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text = vm.name
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if vm is current_update_vm:
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self.updatevm_idx = i
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text += " (current)"
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self.update_vm_combo.insertItem(i, text)
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self.update_vm_combo.insertItem(len(all_vms), "none")
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if current_update_vm is None:
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self.updatevm_idx = len(all_vms)
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self.update_vm_combo.setCurrentIndex(self.updatevm_idx)
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#clockvm
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self.clockvm_idx = -1
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current_clock_vm = self.qvm_collection.get_clockvm_vm()
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for (i, vm) in enumerate(all_vms):
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text = vm.name
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if vm is current_clock_vm:
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self.clockvm_idx = i
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text += " (current)"
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self.clock_vm_combo.insertItem(i, text)
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self.clock_vm_combo.insertItem(len(all_vms), "none")
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if current_clock_vm is None:
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self.clockvm_idx = len(all_vms)
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self.clock_vm_combo.setCurrentIndex(self.clockvm_idx)
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#default netvm
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netvms = [vm for vm in all_vms if vm.is_netvm()]
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self.netvm_idx = -1
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current_netvm = self.qvm_collection.get_default_netvm()
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for (i, vm) in enumerate(netvms):
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text = vm.name
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if vm is current_netvm:
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self.netvm_idx = i
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text += " (current)"
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self.default_netvm_combo.insertItem(i, text)
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if current_netvm is not None:
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self.default_netvm_combo.setCurrentIndex(self.netvm_idx)
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#default template
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templates = [vm for vm in all_vms if vm.is_template()]
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self.template_idx = -1
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current_template = self.qvm_collection.get_default_template()
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for (i, vm) in enumerate(templates):
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text = vm.name
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if vm is current_template:
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self.template_idx = i
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text += " (current)"
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self.default_template_combo.insertItem(i, text)
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if current_template is not None:
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self.default_template_combo.setCurrentIndex(self.template_idx)
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def __apply_system_defaults__(self):
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#upatevm
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if self.update_vm_combo.currentIndex() != self.updatevm_idx:
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updatevm_name = self.update_vm_combo.currentText()
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updatevm_name = updatevm_name.split(' ')[0]
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updatevm = self.qvm_collection.get_vm_by_name(updatevm_name)
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self.qvm_collection.set_updatevm_vm(updatevm)
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self.anything_changed = True
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#clockvm
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if self.clock_vm_combo.currentIndex() != self.clockvm_idx:
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clockvm_name = self.clock_vm_combo.currentText()
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clockvm_name = clockvm_name.split(' ')[0]
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clockvm = self.qvm_collection.get_vm_by_name(clockvm_name)
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self.qvm_collection.set_clockvm_vm(clockvm)
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self.anything_changed = True
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#default netvm
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if self.default_netvm_combo.currentIndex() != self.netvm_idx:
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name = self.default_netvm_combo.currentText()
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name = name.split(' ')[0]
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vm = self.qvm_collection.get_vm_by_name(name)
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self.qvm_collection.set_default_netvm(vm)
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self.anything_changed = True
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#default template
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if self.default_template_combo.currentIndex() != self.template_idx:
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name = self.default_template_combo.currentText()
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name = name.split(' ')[0]
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vm = self.qvm_collection.get_vm_by_name(name)
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self.qvm_collection.set_default_template(vm)
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self.anything_changed = True
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def __init_kernel_defaults__(self):
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kernel_list = []
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for k in os.listdir(qubes_kernels_base_dir):
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kernel_list.append(k)
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self.kernel_idx = 0
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for (i, k) in enumerate(kernel_list):
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text = k
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if k == self.qvm_collection.get_default_kernel():
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text += " (current)"
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self.kernel_idx = i
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self.default_kernel_combo.insertItem(i,text)
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self.default_kernel_combo.setCurrentIndex(self.kernel_idx)
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def __apply_kernel_defaults__(self):
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if self.default_kernel_combo.currentIndex() != self.kernel_idx:
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kernel = self.default_kernel_combo.currentText()
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kernel = kernel.split(' ')[0]
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self.qvm_collection.set_default_kernel(kernel)
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self.anything_changed = True
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def __init_mem_defaults__(self):
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#qmemman settings
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self.qmemman_config = SafeConfigParser()
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self.vm_min_mem_val = str(qmemman_algo.MIN_PREFMEM)
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self.dom0_mem_boost_val = str(qmemman_algo.DOM0_MEM_BOOST)
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self.qmemman_config.read(qmemman_config_path)
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if self.qmemman_config.has_section('global'):
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self.vm_min_mem_val = self.qmemman_config.get('global', 'vm-min-mem')
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self.dom0_mem_boost_val = self.qmemman_config.get('global', 'dom0-mem-boost')
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self.vm_min_mem_val = parse_size(self.vm_min_mem_val)
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self.dom0_mem_boost_val = parse_size(self.dom0_mem_boost_val)
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self.min_vm_mem.setValue(self.vm_min_mem_val/1024/1024)
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self.dom0_mem_boost.setValue(self.dom0_mem_boost_val/1024/1024)
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#keep dispvm in memory
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exists = os.path.exists(dont_keep_dvm_in_memory_path)
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self.dispvm_in_memory.setChecked( not exists)
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def __apply_mem_defaults__(self):
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#qmemman settings
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current_min_vm_mem = self.min_vm_mem.value()
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current_dom0_mem_boost = self.dom0_mem_boost.value()
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if current_min_vm_mem*1024*1024 != self.vm_min_mem_val or current_dom0_mem_boost*1024*1024 != self.dom0_mem_boost_val:
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current_min_vm_mem = str(current_min_vm_mem)+'M'
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current_dom0_mem_boost = str(current_dom0_mem_boost)+'M'
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if not self.qmemman_config.has_section('global'):
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#add the whole section
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self.qmemman_config.add_section('global')
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self.qmemman_config.set('global', 'vm-min-mem', current_min_vm_mem)
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self.qmemman_config.set('global', 'dom0-mem-boost', current_dom0_mem_boost)
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self.qmemman_config.set('global', 'cache-margin-factor', str(qmemman_algo.CACHE_FACTOR))
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qmemman_config_file = open(qmemman_config_path, 'a')
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self.qmemman_config.write(qmemman_config_file)
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qmemman_config_file.close()
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else:
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#If there already is a 'global' section, we don't use SafeConfigParser.write() - it would get rid of all the comments...
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lines_to_add = {}
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lines_to_add['vm-min-mem'] = "vm-min-mem = " + current_min_vm_mem + "\n"
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lines_to_add['dom0-mem-boost'] = "dom0-mem-boost = " + current_dom0_mem_boost +"\n"
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config_lines = []
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qmemman_config_file = open(qmemman_config_path, 'r')
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for l in qmemman_config_file:
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if l.strip().startswith('vm-min-mem'):
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config_lines.append(lines_to_add['vm-min-mem'])
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del lines_to_add['vm-min-mem']
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elif l.strip().startswith('dom0-mem-boost'):
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config_lines.append(lines_to_add['dom0-mem-boost'])
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del lines_to_add['dom0-mem-boost']
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else:
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config_lines.append(l)
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qmemman_config_file.close()
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for l in lines_to_add:
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config_lines.append(l)
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qmemman_config_file = open(qmemman_config_path, 'w')
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qmemman_config_file.writelines(config_lines)
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qmemman_config_file.close()
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self.anything_changed = True
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#keep dispvm in memory
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was_checked = not os.path.exists(dont_keep_dvm_in_memory_path)
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if was_checked != self.dispvm_in_memory.isChecked():
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if was_checked:
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#touch file
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open(dont_keep_dvm_in_memory_path, 'w').close()
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else:
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#rm file
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os.remove(dont_keep_dvm_in_memory_path)
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self.anything_changed = True
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def reject(self):
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self.done(0)
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def save_and_apply(self):
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self.qvm_collection.lock_db_for_writing()
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self.anything_changed = False
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self.__apply_system_defaults__()
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self.__apply_kernel_defaults__()
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self.__apply_mem_defaults__()
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if self.anything_changed == True:
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self.qvm_collection.save()
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self.qvm_collection.unlock_db()
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# Bases on the original code by:
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# Copyright (c) 2002-2007 Pascal Varet <p.varet@gmail.com>
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def handle_exception( exc_type, exc_value, exc_traceback ):
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import sys
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import os.path
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import traceback
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filename, line, dummy, dummy = traceback.extract_tb( exc_traceback ).pop()
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filename = os.path.basename( filename )
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error = "%s: %s" % ( exc_type.__name__, exc_value )
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QMessageBox.critical(None, "Houston, we have a problem...",
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"Whoops. A critical error has occured. This is most likely a bug "
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"in Qubes Global Settings application.<br><br>"
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"<b><i>%s</i></b>" % error +
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"at <b>line %d</b> of file <b>%s</b>.<br/><br/>"
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% ( line, filename ))
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def main():
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global qubes_host
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qubes_host = QubesHost()
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global app
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app = QApplication(sys.argv)
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app.setOrganizationName("The Qubes Project")
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app.setOrganizationDomain("http://qubes-os.org")
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app.setApplicationName("Qubes Global Settings")
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sys.excepthook = handle_exception
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qvm_collection = QubesVmCollection()
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qvm_collection.lock_db_for_reading()
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qvm_collection.load()
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qvm_collection.unlock_db()
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global global_window
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global_window = GlobalSettingsWindow()
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global_window.show()
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app.exec_()
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app.exit()
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if __name__ == "__main__":
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main()
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