questions about changing NIC name

[Dusty Mabe <dusty dustymabe com>]

Hi,

While researching a bug reported against RHEL CoreOS I've decided to look a bit deeper into
how a user would go about changing the name of a NIC on a machine to something custom. In
this investigation I have some questions:

-  It seems as if nm-initrd-generator doesn't have support for the ifname= karg. Is that
   intentional?

- If I specify the nic name and MAC as part of the ip= line the mac specified gets set to
  'cloned-mac-address' rather than 'mac-address'. Is that right?
    - i.e, ip=192.168.122.111::192.168.122.1:255.255.255.0:initrdhost:nicname:none:0:52:54:00:00:00:0a
    - 
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/blob/master/src/initrd/nmi-cmdline-reader.c#L583

- Is there a udev helper that parses NM keyfiles and sets up udev rules like /lib/udev/rename_device
  does for reading legacy network scripts in /etc/sysconfig/network-scripts/ ?
    - 
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_and_managing_networking/consistent-network-interface-device-naming_configuring-and-managing-networking#how-the-network-device-naming-works_consistent-network-interface-device-naming
    - https://github.com/fedora-sysv/initscripts/blob/master/src/rename_device.c


Thanks for the help.

Dusty