def _get_npcap_dot11_adapters():
"""
Get the npcap 802.11 adapters from the registry or None if npcap
is not 802.11 enabled.
"""
hkey = winreg.HKEY_LOCAL_MACHINE
node = r"SYSTEM\CurrentControlSet\Services\npcap\Parameters"
try:
key = winreg.OpenKey(hkey, node)
dot11_adapters, _ = winreg.QueryValueEx(key, "Dot11Adapters")
winreg.CloseKey(key)
except WindowsError:
return None
return dot11_adapters
def _get_hardware_iface_guid(devid):
"""
Get the hardware interface guid for device with 'devid' number
or None if such interface does not exist.
"""
devid = int(devid) + 1
hkey = winreg.HKEY_LOCAL_MACHINE
node = r"SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkCards\{}".format(devid)
try:
key = winreg.OpenKey(hkey, node)
guid, _ = winreg.QueryValueEx(key, "ServiceName")
winreg.CloseKey(key)
except WindowsError:
return None
guid = guid.strip()
return guid if guid.startswith("{") and guid.endswith("}") else None
def _get_npcap_config(param_key):
"""
Get a Npcap parameter matching key in the registry.
List:
AdminOnly, DefaultFilterSettings, DltNull, Dot11Adapters, Dot11Support
LoopbackAdapter, LoopbackSupport, NdisImPlatformBindingOptions, VlanSupport
WinPcapCompatible
"""
hkey = winreg.HKEY_LOCAL_MACHINE
node = r"SYSTEM\CurrentControlSet\Services\npcap\Parameters"
try:
key = winreg.OpenKey(hkey, node)
dot11_adapters, _ = winreg.QueryValueEx(key, param_key)
winreg.CloseKey(key)
except WindowsError:
return None
return dot11_adapters
