nixpkgs/nixos/modules/system/boot/systemd/tpm2.nix
Jared Baur dad880d6bf
nixos/systemd: conditionally leave out some upstream units
Some upstream systemd units are conditionally installed into the systemd
output, so we must make sure the feature that enables their installation
is enabled on our side prior to trying to use them.
2025-03-19 08:14:48 -07:00

80 lines
1.8 KiB
Nix

{
lib,
config,
pkgs,
...
}:
{
meta.maintainers = [ lib.maintainers.elvishjerricco ];
imports = [
(lib.mkRenamedOptionModule
[
"boot"
"initrd"
"systemd"
"enableTpm2"
]
[
"boot"
"initrd"
"systemd"
"tpm2"
"enable"
]
)
];
options = {
systemd.tpm2.enable = lib.mkEnableOption "systemd TPM2 support" // {
default = config.systemd.package.withTpm2Units;
defaultText = "systemd.package.withTpm2Units";
};
boot.initrd.systemd.tpm2.enable = lib.mkEnableOption "systemd initrd TPM2 support" // {
default = config.boot.initrd.systemd.package.withTpm2Units;
defaultText = "boot.initrd.systemd.package.withTpm2Units";
};
};
# TODO: pcrphase, pcrextend, pcrfs, pcrmachine
config = lib.mkMerge [
# Stage 2
(
let
cfg = config.systemd;
in
lib.mkIf cfg.tpm2.enable {
systemd.additionalUpstreamSystemUnits = [
"tpm2.target"
"systemd-tpm2-setup-early.service"
"systemd-tpm2-setup.service"
];
}
)
# Stage 1
(
let
cfg = config.boot.initrd.systemd;
in
lib.mkIf (cfg.enable && cfg.tpm2.enable) {
boot.initrd.systemd.additionalUpstreamUnits = [
"tpm2.target"
"systemd-tpm2-setup-early.service"
];
boot.initrd.availableKernelModules =
[ "tpm-tis" ]
++ lib.optional (
!(pkgs.stdenv.hostPlatform.isRiscV64 || pkgs.stdenv.hostPlatform.isArmv7)
) "tpm-crb";
boot.initrd.systemd.storePaths = [
pkgs.tpm2-tss
"${cfg.package}/lib/systemd/systemd-tpm2-setup"
"${cfg.package}/lib/systemd/system-generators/systemd-tpm2-generator"
];
}
)
];
}