345 rindas
11 KiB
Python
345 rindas
11 KiB
Python
#
|
|
# The Qubes OS Project, http://www.qubes-os.org
|
|
#
|
|
# Copyright (C) 2011 Tomasz Sterna <tomek@xiaoka.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 sys
|
|
import os
|
|
import re
|
|
import xml.etree.ElementTree
|
|
|
|
from PyQt4.QtCore import *
|
|
from PyQt4.QtGui import *
|
|
|
|
from qubes.qubes import QubesVmCollection
|
|
from qubes.qubes import QubesException
|
|
from qubes.qubes import dry_run
|
|
|
|
import ui_newfwruledlg
|
|
|
|
|
|
class QIPAddressValidator(QValidator):
|
|
def __init__(self, parent = None):
|
|
super (QIPAddressValidator, self).__init__(parent)
|
|
|
|
def validate(self, input, pos):
|
|
hostname = str(input)
|
|
|
|
if len(hostname) > 255 or len(hostname) == 0:
|
|
return (QValidator.Intermediate, pos)
|
|
|
|
if hostname == "*":
|
|
return (QValidator.Acceptable, pos)
|
|
|
|
unmask = hostname.split("/", 1)
|
|
if len(unmask) == 2:
|
|
hostname = unmask[0]
|
|
mask = unmask[1]
|
|
if mask.isdigit() or mask == "":
|
|
if re.match("^([0-9]{1,3}\.){3}[0-9]{1,3}$", hostname) is None:
|
|
return (QValidator.Invalid, pos)
|
|
if mask != "":
|
|
mask = int(unmask[1])
|
|
if mask < 0 or mask > 32:
|
|
return (QValidator.Invalid, pos)
|
|
else:
|
|
return (QValidator.Invalid, pos)
|
|
|
|
if hostname[-1:] == ".":
|
|
hostname = hostname[:-1]
|
|
|
|
if hostname[-1:] == "-":
|
|
return (QValidator.Intermediate, pos)
|
|
|
|
allowed = re.compile("(?!-)[A-Z\d-]{1,63}(?<!-)$", re.IGNORECASE)
|
|
if all(allowed.match(x) for x in hostname.split(".")):
|
|
return (QValidator.Acceptable, pos)
|
|
|
|
return (QValidator.Invalid, pos)
|
|
|
|
class NewFwRuleDlg (QDialog, ui_newfwruledlg.Ui_NewFwRuleDlg):
|
|
def __init__(self, parent = None):
|
|
super (NewFwRuleDlg, self).__init__(parent)
|
|
self.setupUi(self)
|
|
|
|
self.set_ok_enabled(False)
|
|
self.addressComboBox.setValidator(QIPAddressValidator())
|
|
self.addressComboBox.editTextChanged.connect(self.address_editing_finished)
|
|
self.serviceComboBox.setValidator(QRegExpValidator(QRegExp("[a-z][a-z0-9-]+|[0-9]+(-[0-9]+)?", Qt.CaseInsensitive), None))
|
|
self.serviceComboBox.setEnabled(False)
|
|
self.serviceComboBox.setInsertPolicy(QComboBox.InsertAtBottom)
|
|
self.populate_combos()
|
|
self.serviceComboBox.setInsertPolicy(QComboBox.InsertAtTop)
|
|
|
|
|
|
def populate_combos(self):
|
|
example_addresses = [
|
|
"", "www.example.com",
|
|
"192.168.1.100", "192.168.0.0/16",
|
|
"*"
|
|
]
|
|
displayed_services = [
|
|
'',
|
|
'http', 'https', 'ftp', 'ftps',
|
|
'smtp', 'pop3', 'pop3s', 'imap', 'imaps', 'nntp', 'nntps',
|
|
'ssh', 'telnet', 'telnets', 'ntp', 'snmp',
|
|
'ldap', 'ldaps', 'irc', 'ircs', 'xmpp-client',
|
|
'syslog', 'printer', 'nfs', 'x11',
|
|
'1024-1234'
|
|
]
|
|
for address in example_addresses:
|
|
self.addressComboBox.addItem(address)
|
|
for service in displayed_services:
|
|
self.serviceComboBox.addItem(service)
|
|
|
|
def address_editing_finished(self):
|
|
self.set_ok_enabled(True)
|
|
|
|
def set_ok_enabled(self, on):
|
|
ok_button = self.buttonBox.button(QDialogButtonBox.Ok)
|
|
if ok_button is not None:
|
|
ok_button.setEnabled(on)
|
|
|
|
def on_tcp_radio_toggled(self, checked):
|
|
if checked:
|
|
self.serviceComboBox.setEnabled(True)
|
|
|
|
def on_udp_radio_toggled(self, checked):
|
|
if checked:
|
|
self.serviceComboBox.setEnabled(True)
|
|
|
|
def on_any_radio_toggled(self, checked):
|
|
if checked:
|
|
self.serviceComboBox.setEnabled(False)
|
|
|
|
|
|
class QubesFirewallRuleItem(object):
|
|
def __init__(self, address = str(), netmask = 32, portBegin = 0, portEnd = None, protocol = "any"):
|
|
self.__address = address
|
|
self.__netmask = netmask
|
|
self.__portBegin = portBegin
|
|
self.__portEnd = portEnd
|
|
self.__protocol = protocol
|
|
|
|
@property
|
|
def address(self):
|
|
return self.__address
|
|
|
|
@property
|
|
def netmask(self):
|
|
return self.__netmask
|
|
|
|
@property
|
|
def portBegin(self):
|
|
return self.__portBegin
|
|
|
|
@property
|
|
def portEnd(self):
|
|
return self.__portEnd
|
|
|
|
@property
|
|
def protocol(self):
|
|
return self.__protocol
|
|
|
|
def hasChildren(self):
|
|
return False
|
|
|
|
|
|
|
|
class QubesFirewallRulesModel(QAbstractItemModel):
|
|
def __init__(self, parent=None):
|
|
QAbstractItemModel.__init__(self, parent)
|
|
|
|
self.__columnValues = {
|
|
0: lambda x: "*" if self.children[x].address == "0.0.0.0" and self.children[x].netmask == 0 \
|
|
else self.children[x].address + ("" if self.children[x].netmask == 32 \
|
|
else " /{0}".format(self.children[x].netmask)),
|
|
1: lambda x: "any" if self.children[x].portBegin == 0 \
|
|
else "{0}-{1}".format(self.children[x].portBegin, self.children[x].portEnd) if self.children[x].portEnd is not None \
|
|
else self.get_service_name(self.children[x].portBegin),
|
|
2: lambda x: self.children[x].protocol,
|
|
}
|
|
self.__columnNames = {
|
|
0: "Address",
|
|
1: "Service",
|
|
2: "Protocol",
|
|
}
|
|
|
|
self.__services = list()
|
|
pattern = re.compile("(?P<name>[a-z][a-z0-9-]+)\s+(?P<port>[0-9]+)/(?P<protocol>[a-z]+)", re.IGNORECASE)
|
|
f = open('/etc/services', 'r')
|
|
for line in f:
|
|
match = pattern.match(line)
|
|
if match is not None:
|
|
service = match.groupdict()
|
|
self.__services.append( (service["name"], int(service["port"]),) )
|
|
f.close()
|
|
|
|
self.fw_changed = False
|
|
|
|
def sort(self, idx, order):
|
|
from operator import attrgetter
|
|
|
|
rev = (order == Qt.AscendingOrder)
|
|
if idx==0:
|
|
self.children.sort(key=attrgetter('address'), reverse = rev)
|
|
if idx==1:
|
|
self.children.sort(key=lambda x: self.get_service_name(attrgetter('portBegin')) if attrgetter('portEnd') == None else attrgetter('portBegin'), reverse = rev)
|
|
if idx==2:
|
|
self.children.sort(key=attrgetter('protocol'), reverse = rev)
|
|
|
|
|
|
def get_service_name(self, port):
|
|
for service in self.__services:
|
|
if service[1] == port:
|
|
return service[0]
|
|
return str(port)
|
|
|
|
def get_service_port(self, name):
|
|
for service in self.__services:
|
|
if service[0] == name:
|
|
return service[1]
|
|
return None
|
|
|
|
def get_column_string(self, col, row):
|
|
return self.__columnValues[col](row)
|
|
|
|
def set_vm(self, vm):
|
|
self.__vm = vm
|
|
|
|
self.clearChildren()
|
|
|
|
conf = vm.get_firewall_conf()
|
|
|
|
self.allow = conf["allow"]
|
|
self.allowDns = conf["allowDns"]
|
|
self.allowIcmp = conf["allowIcmp"]
|
|
self.allowYumProxy = conf["allowYumProxy"]
|
|
|
|
for rule in conf["rules"]:
|
|
self.appendChild(QubesFirewallRuleItem(
|
|
rule["address"], rule["netmask"], rule["portBegin"], rule["portEnd"], rule["proto"]
|
|
))
|
|
|
|
def get_vm_name(self):
|
|
return self.__vm.name
|
|
|
|
def apply_rules(self, allow, dns, icmp, yumproxy):
|
|
assert self.__vm is not None
|
|
|
|
if(self.allow != allow or self.allowDns != dns or self.allowIcmp != icmp or self.allowYumProxy != yumproxy):
|
|
self.fw_changed = True
|
|
|
|
conf = { "allow": allow,
|
|
"allowDns": dns,
|
|
"allowIcmp": icmp,
|
|
"allowYumProxy": yumproxy,
|
|
"rules": list()
|
|
}
|
|
|
|
for rule in self.children:
|
|
conf["rules"].append(
|
|
{
|
|
"address": rule.address,
|
|
"netmask": rule.netmask,
|
|
"portBegin": rule.portBegin,
|
|
"portEnd": rule.portEnd,
|
|
"proto": rule.protocol,
|
|
}
|
|
)
|
|
|
|
if self.fw_changed:
|
|
self.__vm.write_firewall_conf(conf)
|
|
|
|
if self.__vm.is_running():
|
|
vm = self.__vm.netvm
|
|
while vm is not None:
|
|
if vm.is_proxyvm() and vm.is_running():
|
|
vm.write_iptables_xenstore_entry()
|
|
vm = vm.netvm
|
|
|
|
def index(self, row, column, parent=QModelIndex()):
|
|
if not self.hasIndex(row, column, parent):
|
|
return QModelIndex()
|
|
|
|
return self.createIndex(row, column, self.children[row])
|
|
|
|
def parent(self, child):
|
|
return QModelIndex()
|
|
|
|
def rowCount(self, parent=QModelIndex()):
|
|
return len(self)
|
|
|
|
def columnCount(self, parent=QModelIndex()):
|
|
return len(self.__columnValues)
|
|
|
|
def hasChildren(self, index=QModelIndex()):
|
|
parentItem = index.internalPointer()
|
|
if parentItem is not None:
|
|
return parentItem.hasChildren()
|
|
else:
|
|
return True
|
|
|
|
def data(self, index, role=Qt.DisplayRole):
|
|
if index.isValid() and role == Qt.DisplayRole:
|
|
return self.__columnValues[index.column()](index.row())
|
|
|
|
return QVariant()
|
|
|
|
def headerData(self, section, orientation, role=Qt.DisplayRole):
|
|
if section < len(self.__columnNames) \
|
|
and orientation == Qt.Horizontal and role == Qt.DisplayRole:
|
|
return self.__columnNames[section]
|
|
|
|
return QVariant()
|
|
|
|
@property
|
|
def children(self):
|
|
return self.__children
|
|
|
|
def appendChild(self, child):
|
|
row = len(self)
|
|
self.beginInsertRows(QModelIndex(), row, row)
|
|
self.children.append(child)
|
|
self.endInsertRows()
|
|
index = self.createIndex(row, 0, child)
|
|
self.dataChanged.emit(index, index)
|
|
|
|
def removeChild(self, i):
|
|
if i >= len(self):
|
|
return
|
|
|
|
self.beginRemoveRows(QModelIndex(), i, i)
|
|
del self.children[i]
|
|
self.endRemoveRows()
|
|
index = self.createIndex(i, 0)
|
|
self.dataChanged.emit(index, index)
|
|
|
|
def setChild(self, i, child):
|
|
self.children[i] = child
|
|
index = self.createIndex(i, 0, child)
|
|
self.dataChanged.emit(index, index)
|
|
|
|
def clearChildren(self):
|
|
self.__children = list()
|
|
|
|
def __len__(self):
|
|
return len(self.children)
|
|
|