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mirror of https://git.kernel.org/pub/scm/network/wireless/iwd.git synced 2024-11-05 11:39:24 +01:00
iwd/autotests/util/hwsim.py
James Prestwood e7d941dc3c auto-t: make spoof_frame more robust
Sometimes scan results can come in with a MAC address which
should be in the first index of addrs[] (42:xx:xx:xx:xx:xx).
This causes a failure to lookup the radio path.

There was also a failure path added if the radio cannot be
found rather than rely on DBus to fail with a None path.

The arguments to SendFrame were also changed to use the
ByteArray DBus type rather than python's internal bytearray.
This shouldn't have any effect, but its more consistent with
how DBus arguments should be used.
2021-02-05 14:43:17 -06:00

354 lines
11 KiB
Python
Executable File

#!/usr/bin/python3
import dbus
import sys
import collections
from abc import ABCMeta, abstractmethod
from enum import Enum
import iwd
from config import ctx
HWSIM_SERVICE = 'net.connman.hwsim'
HWSIM_RULE_MANAGER_INTERFACE = 'net.connman.hwsim.RuleManager'
HWSIM_RULE_INTERFACE = 'net.connman.hwsim.Rule'
HWSIM_RADIO_MANAGER_INTERFACE = 'net.connman.hwsim.RadioManager'
HWSIM_RADIO_INTERFACE = 'net.connman.hwsim.Radio'
HWSIM_INTERFACE_INTERFACE = 'net.connman.hwsim.Interface'
HWSIM_AGENT_MANAGER_PATH = '/'
class HwsimDBusAbstract(iwd.AsyncOpAbstract):
__metaclass__ = ABCMeta
def __init__(self, object_path, properties = None, namespace=ctx):
self._bus = namespace.get_bus()
self._object_path = object_path
proxy = self._bus.get_object(HWSIM_SERVICE, self._object_path)
self._iface = dbus.Interface(proxy, self._iface_name)
self._prop_proxy = dbus.Interface(proxy, iwd.DBUS_PROPERTIES)
if properties is None:
self._properties = self._prop_proxy.GetAll(self._iface_name)
else:
self._properties = properties
self._prop_proxy.connect_to_signal("PropertiesChanged",
self._property_changed_handler, path_keyword="path")
def _property_changed_handler(self, interface, changed, invalidated, path):
if interface == self._iface_name and path == self._object_path:
for name, value in changed.items():
self._properties[name] = value
@abstractmethod
def __str__(self):
pass
@property
def path(self):
return self._object_path
class Rule(HwsimDBusAbstract):
_iface_name = HWSIM_RULE_INTERFACE
@property
def source(self):
return self._properties['Source']
@source.setter
def source(self, value):
self._prop_proxy.Set(self._iface_name, 'Source', value, reply_handler=self._success,
error_handler=self._failure)
self._wait_for_async_op()
@property
def destination(self):
return self._properties['Destination']
@destination.setter
def destination(self, value):
self._prop_proxy.Set(self._iface_name, 'Destination', value, reply_handler=self._success,
error_handler=self._failure)
self._wait_for_async_op()
@property
def bidirectional(self):
return bool(self._properties['Bidirectional'])
@bidirectional.setter
def bidirectional(self, value):
self._prop_proxy.Set(self._iface_name, 'Bidirectional',
dbus.Boolean(value), reply_handler=self._success, error_handler=self._failure)
self._wait_for_async_op()
@property
def frequency(self):
return int(self._properties['Frequency'])
@frequency.setter
def frequency(self, value):
self._prop_proxy.Set(self._iface_name, 'Frequency',
dbus.UInt32(value), reply_handler=self._success, error_handler=self._failure)
self._wait_for_async_op()
@property
def priority(self):
return int(self._properties['Priority'])
@priority.setter
def priority(self, value):
self._prop_proxy.Set(self._iface_name, 'Priority',
dbus.Int16(value), reply_handler=self._success, error_handler=self._failure)
self._wait_for_async_op()
@property
def signal(self):
return int(self._properties['SignalStrength'])
@signal.setter
def signal(self, value):
self._prop_proxy.Set(self._iface_name, 'SignalStrength',
dbus.Int16(value), reply_handler=self._success, error_handler=self._failure)
self._wait_for_async_op()
@property
def drop(self):
return bool(self._properties['Drop'])
@drop.setter
def drop(self, value):
self._prop_proxy.Set(self._iface_name, 'Drop', dbus.Boolean(value),
reply_handler=self._success, error_handler=self._failure)
self._wait_for_async_op()
@property
def delay(self):
return int(self._properties['Delay'])
@delay.setter
def delay(self, value):
self._prop_proxy.Set(self._iface_name, 'Delay', dbus.UInt32(value),
reply_handler=self._success, error_handler=self._failure)
self._wait_for_async_op()
def remove(self):
self._iface.Remove(reply_handler=self._success,
error_handler=self._failure)
self._wait_for_async_op()
def __del__(self):
self.remove()
def __str__(self, prefix = ''):
return prefix + 'Rule: ' + self.path + '\n' + \
prefix + '\tSource:\t\t' + self.source + '\n' + \
prefix + '\tDestination:\t' + self.destination + '\n' + \
prefix + '\tBidirectional:\t' + \
str(self.bidirectional) + '\n' + \
prefix + '\tPriority:\t' + str(self.priority) + '\n' +\
prefix + '\tFrequency:\t' + str(self.frequency) + '\n' + \
prefix + '\tApply rssi:\t' + str(self.signal) + '\n' + \
prefix + '\tApply drop:\t' + str(self.drop) + '\n'
class RuleSet(collections.Mapping):
def __init__(self, hwsim, objects):
self._dict = {}
self._rule_manager = hwsim.rule_manager
hwsim.object_manager.connect_to_signal("InterfacesAdded",
self._interfaces_added_handler, HWSIM_RULE_INTERFACE)
hwsim.object_manager.connect_to_signal("InterfacesRemoved",
self._interfaces_removed_handler, HWSIM_RULE_INTERFACE)
for path in objects:
for interface in objects[path]:
if interface == HWSIM_RULE_INTERFACE:
self._dict[path] = Rule(path, objects[path][interface])
def __getitem__(self, key):
return self._dict.__getitem__(key)
def __iter__(self):
return self._dict.__iter__()
def __len__(self):
return self._dict.__len__()
def __delitem__(self, key):
self._dict.pop(key).remove()
def _interfaces_added_handler(self, path, interfaces):
self._dict[path] = Rule(interfaces[HWSIM_RULE_INTERFACE])
def _interfaces_removed_handler(self, path, interfaces):
del _dict[path]
def create(self):
path = self._rule_manager.AddRule()
obj = Rule(path)
self._dict[path] = obj
return obj
class Radio(HwsimDBusAbstract):
_iface_name = HWSIM_RADIO_INTERFACE
@property
def name(self):
return self._properties['Name']
@property
def addresses(self):
return [str(addr) for addr in self._properties['Addresses']]
def remove(self):
self._iface.Destroy(reply_handler=self._success,
error_handler=self._failure)
self._wait_for_async_op()
def __str__(self, prefix = ''):
return prefix + 'Radio: ' + self.path + '\n' + \
prefix + '\tName:\t\t' + self.name + '\n' + \
prefix + '\tAddresses:\t' + repr(self.destination) + '\n'
class RadioList(collections.Mapping):
def __init__(self, hwsim, objects):
self._dict = {}
self._radio_manager = hwsim.radio_manager
hwsim.object_manager.connect_to_signal("InterfacesAdded",
self._interfaces_added_handler, HWSIM_RADIO_INTERFACE)
hwsim.object_manager.connect_to_signal("InterfacesRemoved",
self._interfaces_removed_handler, HWSIM_RADIO_INTERFACE)
for path in objects:
for interface in objects[path]:
if interface == HWSIM_RADIO_INTERFACE:
self._dict[path] = Radio(path, objects[path][interface])
def __getitem__(self, key):
return self._dict.__getitem__(key)
def __iter__(self):
return self._dict.__iter__()
def __len__(self):
return self._dict.__len__()
def __delitem__(self, key):
self._dict.pop(key).remove()
def values(self):
return self._dict.values()
def _interfaces_added_handler(self, path, interfaces):
self._dict[path] = Radio(interfaces[HWSIM_RADIO_INTERFACE])
def _interfaces_removed_handler(self, path, interfaces):
del _dict[path]
def create(self, name=None, p2p_device=False, iftype_disable=None,
cipher_disable=None):
args = dbus.Dictionary({
'P2P': p2p_device,
}, signature='sv')
if name:
args['Name'] = name
if iftype_disable:
args['InterfaceTypeDisable'] = iftype_disable
if cipher_disable:
args['CipherTypeDisable'] = cipher_disable
path = self._radio_manager.CreateRadio(args)
obj = Radio(path)
self._dict[path] = obj
return obj
class Hwsim(iwd.AsyncOpAbstract):
def __init__(self, namespace=ctx):
self._bus = namespace.get_bus()
self._rule_manager_if = dbus.Interface(
self._bus.get_object(HWSIM_SERVICE, '/'),
HWSIM_RULE_MANAGER_INTERFACE)
self._radio_manager_if = dbus.Interface(
self._bus.get_object(HWSIM_SERVICE, '/'),
HWSIM_RADIO_MANAGER_INTERFACE)
self._object_manager_if = dbus.Interface(
self._bus.get_object(HWSIM_SERVICE, '/'),
iwd.DBUS_OBJECT_MANAGER)
objects = self.object_manager.GetManagedObjects()
self._rules = RuleSet(self, objects)
self._radios = RadioList(self, objects)
@property
def rules(self):
return self._rules
@property
def rule_manager(self):
return self._rule_manager_if
@property
def radios(self):
return self._radios
@property
def radio_manager(self):
return self._radio_manager_if
@property
def object_manager(self):
return self._object_manager_if
def spoof_disassociate(self, radio, freq, station):
'''
Send a spoofed disassociate frame to a station
'''
frame = 'a0 00 3a 01'
frame += station.replace(':', '')
frame += radio.addresses[0].replace(':', '')
frame += radio.addresses[0].replace(':', '')
frame += '30 01 07 00'
self.spoof_frame(radio, freq, station, frame)
def spoof_frame(self, radio, freq, station, frame):
'''
Send a spoofed arbitrary frame to a station
'''
radio_path = None
objects = self.object_manager.GetManagedObjects()
for path in objects:
obj = objects[path]
for interface in obj:
if interface == HWSIM_INTERFACE_INTERFACE:
if obj[interface]['Address'] == radio.addresses[0] or \
obj[interface]['Address'] == radio.addresses[1]:
radio_path = path
break
if not radio_path:
raise Exception("Could not find radio %s" % radio.path)
iface = dbus.Interface(self._bus.get_object(HWSIM_SERVICE, radio_path),
HWSIM_INTERFACE_INTERFACE)
iface.SendFrame(dbus.ByteArray.fromhex(station.replace(':', '')),
freq, -30, dbus.ByteArray.fromhex(frame))
def get_radio(self, name):
for path in self.radios:
radio = self.radios[path]
if radio.name == name:
return radio
return None