No MAC spoofing fail-safe for hotplugged devices after logging in

The fail-safe runs only once, in tails-unblock-network, immediately after Tails Greeter logs in. Hence it’s not used for network devices hotplugged after loging in with Tails Greeter.

Feature Branch: feature/spoof-mac

Parent Task: #5421 (closed)

Related issues

Related to #17115

Original created by @anonym on 6550 (Redmine)

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information