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nixpkgs/nixos/tests/systemd-initrd-luks-fido2.nix
Quantenzitrone 2521bebbf2
nixosTests.systemd-initrd-luks-fido2: fix test on aarch64-linux
This is the error message on fail:

> qemu-system-aarch64: -device canokey,file=/tmp/canokey-file: Warning:
>   speed mismatch trying to attach usb device "CanoKey QEMU" (full
>   speed) to bus "usb0.0", port "3" (high speed)

My Understanding of the Issue is: The test failed because
qemu-system-aarch64 apparently has different USB controllers enabled by
default, resulting in a "speed mismatch" between the USB controller and
CanoKey that only occurred on aarch64.
I could reproduce the issue on x86_64 by enabling the EHCI controller
and then fix the issue by specifying which USB bus to use for the
CanoKey.
This didn't fully fix the issue on my first attempt, because the UCHI
controller enabled by -usb doesn't have the same bus name on aarch64
and x86_64.
While bus=usb-bus.0 worked on x86_64, on aarch64 i get this message:

> qemu-system-aarch64: -device canokey,bus=usb-bus.0,file=
>   /tmp/canokey-file: Bus 'usb-bus.0' not found

The final solution now manually enables the OHCI controller (which may
be similar to UHCI, but i really have no idea other than it works) and
assigns it the id aka bus name "usb-bus", so it works the same under
both architectures.
2024-09-01 10:40:14 +02:00

48 lines
1.6 KiB
Nix

import ./make-test-python.nix ({ lib, pkgs, ... }: {
name = "systemd-initrd-luks-fido2";
nodes.machine = { pkgs, config, ... }: {
# Use systemd-boot
virtualisation = {
emptyDiskImages = [ 512 ];
useBootLoader = true;
# Booting off the encrypted disk requires having a Nix store available for the init script
mountHostNixStore = true;
useEFIBoot = true;
qemu.options = [ "-device pci-ohci,id=usb-bus" "-device canokey,bus=usb-bus.0,file=/tmp/canokey-file" ];
};
boot.loader.systemd-boot.enable = true;
boot.initrd.systemd.enable = true;
environment.systemPackages = with pkgs; [ cryptsetup ];
specialisation.boot-luks.configuration = {
boot.initrd.luks.devices = lib.mkVMOverride {
cryptroot = {
device = "/dev/vdb";
crypttabExtraOpts = [ "fido2-device=auto" ];
};
};
virtualisation.rootDevice = "/dev/mapper/cryptroot";
virtualisation.fileSystems."/".autoFormat = true;
};
};
testScript = ''
# Create encrypted volume
machine.wait_for_unit("multi-user.target")
machine.succeed("echo -n supersecret | cryptsetup luksFormat -q --iter-time=1 /dev/vdb -")
machine.succeed("PASSWORD=supersecret SYSTEMD_LOG_LEVEL=debug systemd-cryptenroll --fido2-device=auto /dev/vdb |& systemd-cat")
# Boot from the encrypted disk
machine.succeed("bootctl set-default nixos-generation-1-specialisation-boot-luks.conf")
machine.succeed("sync")
machine.crash()
# Boot and decrypt the disk
machine.wait_for_unit("multi-user.target")
assert "/dev/mapper/cryptroot on / type ext4" in machine.succeed("mount")
'';
})