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|
{
lib,
config,
pkgs,
...
}:
let
inherit (lib)
mkEnableOption
mkIf
mkOption
types
mkPackageOption
getExe'
;
cfg = config.services.cardwired;
tomlFormat = pkgs.formats.toml { };
in
{
options.services.cardwired = {
enable = mkEnableOption "Cardwire eBPF-based GPU manager daemon";
package = mkPackageOption pkgs "cardwire" { };
settings = mkOption {
type = types.submodule {
options = {
auto_apply_gpu_state = mkOption {
type = types.bool;
default = true;
description = ''
Automatically restore GPU states on manual mode.
'';
};
experimental_nvidia_block = mkOption {
type = types.bool;
default = false;
description = ''
Enable blocking specifics Nvidia files. This setting is experimental
because these files can be shared across multiple Nvidia GPUs.
'';
};
battery_auto_switch = mkOption {
type = types.bool;
default = false;
description = ''
Automatically switch mode on AC power.
'';
};
battery_auto_switch_mode = mkOption {
type = types.enum [
"integrated"
"hybrid"
"manual"
"smart"
];
default = "hybrid";
description = ''
The mode cardwire switches on AC power.
'';
};
external_display_auto_switch = mkOption {
type = types.bool;
default = false;
description = ''
Automatically make GPUs available for displays connected to dGPU-only ports.
'';
};
};
};
default = { };
description = ''
Configuration for {file}`/etc/cardwire.toml`
See <https://opengamingcollective.github.io/cardwire/getting-started/usage>
'';
};
};
config = mkIf cfg.enable {
environment.etc."cardwire/cardwire.toml".source = tomlFormat.generate "cardwire.toml" cfg.settings;
services.dbus.enable = true;
services.dbus.packages = [ cfg.package ];
environment.systemPackages = [ cfg.package ];
systemd.services.cardwired = {
description = "Cardwire Daemon";
restartTriggers = [ config.environment.etc."cardwire/cardwire.toml".source ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "dbus";
BusName = "org.opengamingcollective.cardwire";
ExecStart = getExe' cfg.package "cardwired";
Restart = "on-failure";
RestartSec = "5s";
User = "root";
PrivateNetwork = true;
PrivateTmp = true;
ProtectHostname = true;
NoNewPrivileges = true;
ProtectClock = true;
ProtectSystem = "strict";
StateDirectory = "cardwire";
StateDirectoryMode = "0700";
ConfigurationDirectory = "cardwire";
ConfigurationDirectoryMode = "0700";
ProtectHome = "read-only";
ProtectKernelLogs = true;
ProtectControlGroups = true;
ProtectKernelModules = true;
RestrictAddressFamilies = [
"AF_UNIX"
"AF_NETLINK"
];
RestrictNamespaces = true;
RestrictRealtime = true;
RestrictSUIDSGID = true;
LockPersonality = true;
UMask = "0077";
IPAddressDeny = "any";
CapabilityBoundingSet = [
"CAP_SYS_ADMIN"
"CAP_BPF"
"CAP_SYS_PTRACE"
"CAP_DAC_OVERRIDE"
];
};
};
};
}
|
