-
-
Save n8felton/649f66baf51c2c4c33d46b8c25433a7f to your computer and use it in GitHub Desktop.
Get nvram values via python and pyobjc on macOS
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import objc | |
from Foundation import NSBundle | |
IOKit_bundle = NSBundle.bundleWithIdentifier_('com.apple.framework.IOKit') | |
functions = [ | |
("IORegistryEntryFromPath", b"II*"), | |
("IORegistryEntryCreateCFProperty", b"@I@@I"), | |
] | |
objc.loadBundleFunctions(IOKit_bundle, globals(), functions) | |
def nvram(keyname): | |
raw = IORegistryEntryCreateCFProperty(IORegistryEntryFromPath(0, b"IODeviceTree:/options"), keyname, None, 0) | |
# This returns the raw bytes | |
# For string values, this will be what you're looking for | |
# For more complex/structured values, you may need to parse the bytes | |
return raw.bytes().tobytes() | |
# example usage: | |
# Look up a macOS device serial number via nvram | |
def serialnumber(): | |
return nvram("4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:SSN").decode('utf-8').strip('\0') |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment