61 lines
1.4 KiB
Nix
61 lines
1.4 KiB
Nix
{
|
|
config,
|
|
lib,
|
|
pkgs,
|
|
...
|
|
}:
|
|
let
|
|
cfg = config.my.initrdSshUnlock;
|
|
in
|
|
{
|
|
options.my.initrdSshUnlock = {
|
|
enable = lib.mkEnableOption "enable initrd SSH unlock";
|
|
|
|
authorizedKeys = lib.mkOption {
|
|
type = lib.types.listOf lib.types.str;
|
|
default = [ ];
|
|
description = "SSH public keys allowed to connect to initrd for disk unlock.";
|
|
};
|
|
|
|
hostKeyPath = lib.mkOption {
|
|
type = lib.types.str;
|
|
default = "/persist/etc/secrets/initrd/ssh_host_ed25519_key";
|
|
description = "Path to the initrd SSH host private key on the target system.";
|
|
};
|
|
|
|
port = lib.mkOption {
|
|
type = lib.types.port;
|
|
default = 2222;
|
|
description = "Port used by the initrd SSH server.";
|
|
};
|
|
};
|
|
|
|
config = lib.mkIf cfg.enable {
|
|
boot.kernelParams = [ "ip=dhcp" ];
|
|
|
|
boot.initrd.network = {
|
|
enable = true;
|
|
ssh = {
|
|
enable = true;
|
|
port = cfg.port;
|
|
hostKeys = [ cfg.hostKeyPath ];
|
|
authorizedKeys = cfg.authorizedKeys;
|
|
};
|
|
};
|
|
|
|
system.activationScripts.initrdSshHostKey = {
|
|
deps = [
|
|
"users"
|
|
"groups"
|
|
];
|
|
text = ''
|
|
install -d -m 700 "$(dirname "${cfg.hostKeyPath}")"
|
|
if [ ! -f "${cfg.hostKeyPath}" ]; then
|
|
${pkgs.openssh}/bin/ssh-keygen -t ed25519 -N "" -f "${cfg.hostKeyPath}"
|
|
chmod 600 "${cfg.hostKeyPath}"
|
|
fi
|
|
'';
|
|
};
|
|
};
|
|
}
|