diff --git a/modules/module-list.nix b/modules/module-list.nix index 58446c37e8d9..0d48e71aa9ed 100644 --- a/modules/module-list.nix +++ b/modules/module-list.nix @@ -27,6 +27,7 @@ ./misc/nixpkgs.nix ./misc/passthru.nix ./programs/bash/bash.nix + ./programs/blcr.nix ./programs/info.nix ./programs/pwdutils/pwdutils.nix ./programs/ssh.nix diff --git a/modules/programs/blcr.nix b/modules/programs/blcr.nix new file mode 100644 index 000000000000..084d7c5753a5 --- /dev/null +++ b/modules/programs/blcr.nix @@ -0,0 +1,59 @@ +{ config, pkgs, ... }: + +let + inherit (pkgs.lib) mkOption mkIf; + + cfg = config.environment.blcr; + + blcrPkg = config.boot.kernelPackages.blcr; + + insmod = "${pkgs.module_init_tools}/sbin/insmod"; + rmmod = "${pkgs.module_init_tools}/sbin/rmmod"; + + modulesDir = "${blcrPkg}/lib/modules/${pkgs.linux.version}"; + blcr_imports_ko = "${modulesDir}/blcr_imports.ko"; + blcr_ko = "${modulesDir}/blcr.ko"; +in + +{ + ###### interface + + options = { + environment.blcr.enable = mkOption { + default = false; + description = + "Wheter to enable support for the BLCR checkpoingint tool."; + }; + + environment.blcr.autorun = mkOption { + default = true; + description = + "Whether to load BLCR kernel modules automatically at boot."; + }; + }; + + + ###### implementation + + config = mkIf cfg.enable { + environment.systemPackages = [ blcrPkg ]; + + jobs.openafsClient = { + name = "blcr"; + description = "Loads BLCR kernel modules"; + task = true; + + startOn = if cfg.autorun then "started udev" else null; + stopOn = "shutdown"; + + preStart = '' + ${insmod} ${blcr_imports_ko} + ${insmod} ${blcr_ko} + ''; + postStop = '' + ${rmmod} ${blcr_ko} + ${rmmod} ${blcr_imports_ko} + ''; + }; + }; +}