get_mac_address() returns None by default when connected to corporate VPN #91
Description
Describe the bug
When running the get_mac_address() not connected to VPN, everything works. However, when connected to my corporate VPN (via GlobalProtect), the response is None.
To Reproduce
- Connect to corporate VPN
- either run
get_mac_address()orrun getmac -v --debug
Expected behavior
MAC address of default networking device
System info
(please complete the following information):
- OS name (e.g. Windows 10 x64): macOS Monterey
- OS Version (e.g. 1804 build 17134): 12.6
- Python version (e.g. CPython 3.6.5 x64): 3.8.16
- getmac version (e.g. getmac 0.8.3): 0.94
Additional context
Output with verbose logging:
❯ poetry run getmac -v --debug
Configuration file exists at /Users/istrupinskiy/Library/Application Support/pypoetry, reusing this directory.
Consider moving configuration to /Users/istrupinskiy/Library/Preferences/pypoetry, as support for the legacy directory will be removed in an upcoming release.
DEBUG Initializing 'default_iface' method cache (platform: 'darwin')
DEBUG Current method cache: {'ip4': 'None', 'ip6': 'None', 'iface': 'None', 'default_iface': 'DefaultIfaceRouteGetCommand'}
DEBUG Current fallback cache: {'ip4': '[]', 'ip6': '[]', 'iface': '[]', 'default_iface': '[]'}
DEBUG Finished initializing 'default_iface' method cache
DEBUG Attempting get() (method='DefaultIfaceRouteGetCommand', method_type='default_iface', arg='')
DEBUG Initializing 'iface' method cache (platform: 'darwin')
DEBUG Current method cache: {'ip4': 'None', 'ip6': 'None', 'iface': 'DarwinNetworksetupIface', 'default_iface': 'DefaultIfaceRouteGetCommand'}
DEBUG Current fallback cache: {'ip4': '[]', 'ip6': '[]', 'iface': '[<getmac.getmac.IfconfigEther object at 0x10aede7c0>]', 'default_iface': '[]'}
DEBUG Finished initializing 'iface' method cache
DEBUG Attempting get() (method='DarwinNetworksetupIface', method_type='iface', arg='utun0')
WARNING Cached Method 'DarwinNetworksetupIface' failed for 'iface' lookup with process exit code '4' != 1, marking unusable. Exception: Command '['/usr/sbin/networksetup', '-getmacaddress', 'utun0']' returned non-zero exit status 4.
WARNING Falling back to 'IfconfigEther' for unusable method 'DarwinNetworksetupIface'
DEBUG Attempting get() (method='IfconfigEther', method_type='iface', arg='utun0')
DEBUG Method 'DarwinNetworksetupIface' failed for 'iface' lookup
DEBUG Attempting get() (method='IfconfigEther', method_type='iface', arg='lo')
DEBUG Method 'IfconfigEther' failed for 'iface' lookup
DEBUG Raw MAC found: None
DEBUG getmac took 0.1592 seconds
When specifying an interface I do get a result even with VPN:
❯ poetry run getmac -v --debug --interface en0
Configuration file exists at /Users/istrupinskiy/Library/Application Support/pypoetry, reusing this directory.
Consider moving configuration to /Users/istrupinskiy/Library/Preferences/pypoetry, as support for the legacy directory will be removed in an upcoming release.
DEBUG Initializing 'iface' method cache (platform: 'darwin')
DEBUG Current method cache: {'ip4': 'None', 'ip6': 'None', 'iface': 'DarwinNetworksetupIface', 'default_iface': 'None'}
DEBUG Current fallback cache: {'ip4': '[]', 'ip6': '[]', 'iface': '[<getmac.getmac.IfconfigEther object at 0x10ab677f0>]', 'default_iface': '[]'}
DEBUG Finished initializing 'iface' method cache
DEBUG Attempting get() (method='DarwinNetworksetupIface', method_type='iface', arg='en0')
DEBUG Raw MAC found: 3c:22:fb:bf:87:c9
DEBUG getmac took 0.0965 seconds
3c:22:fb:bf:87:c9
I'd like to figure out how to get the MAC address without specifying a network interface as I am using a 3rd party library that uses this pattern, and I do not have access to modify their code. (I also need it to run on a variety of runtimes).