646b892680
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103 lines
2.7 KiB
Nix
103 lines
2.7 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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with lib;
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let
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# A list of attrnames is coerced into an attrset of bools by
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# setting the values to true.
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attrNamesToTrue = types.coercedTo (types.listOf types.str) (
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enabledList: lib.genAttrs enabledList (_attrName: true)
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) (types.attrsOf types.bool);
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in
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{
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###### interface
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options = {
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boot.modprobeConfig.enable =
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mkEnableOption "modprobe config. This is useful for systems like containers which do not require a kernel"
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// {
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default = true;
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};
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boot.modprobeConfig.useUbuntuModuleBlacklist =
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mkEnableOption "Ubuntu distro's module blacklist"
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// {
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default = true;
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};
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boot.blacklistedKernelModules = mkOption {
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type = attrNamesToTrue;
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default = { };
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example = [
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"cirrusfb"
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"i2c_piix4"
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];
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description = ''
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Set of names of kernel modules that should not be loaded
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automatically by the hardware probing code. This can either be
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a list of modules or an attrset. In an attrset, names that are
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set to `true` represent modules that will be blacklisted.
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'';
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apply = mods: lib.attrNames (lib.filterAttrs (_: v: v) mods);
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};
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boot.extraModprobeConfig = mkOption {
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default = "";
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example = ''
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options parport_pc io=0x378 irq=7 dma=1
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'';
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description = ''
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Any additional configuration to be appended to the generated
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{file}`modprobe.conf`. This is typically used to
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specify module options. See
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{manpage}`modprobe.d(5)` for details.
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'';
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type = types.lines;
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};
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};
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###### implementation
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config = mkIf config.boot.modprobeConfig.enable {
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environment.etc."modprobe.d/ubuntu.conf" =
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mkIf config.boot.modprobeConfig.useUbuntuModuleBlacklist
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{
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source = "${pkgs.kmod-blacklist-ubuntu}/modprobe.conf";
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};
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environment.etc."modprobe.d/nixos.conf".text = ''
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${flip concatMapStrings config.boot.blacklistedKernelModules (name: ''
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blacklist ${name}
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'')}
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${config.boot.extraModprobeConfig}
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'';
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environment.etc."modprobe.d/debian.conf".source = pkgs.kmod-debian-aliases;
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environment.etc."modprobe.d/systemd.conf".source =
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"${config.systemd.package}/lib/modprobe.d/systemd.conf";
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environment.systemPackages = [ pkgs.kmod ];
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system.activationScripts.modprobe = stringAfter [ "specialfs" ] ''
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# Allow the kernel to find our wrapped modprobe (which searches
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# in the right location in the Nix store for kernel modules).
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# We need this when the kernel (or some module) auto-loads a
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# module.
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echo ${pkgs.kmod}/bin/modprobe > /proc/sys/kernel/modprobe
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'';
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};
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}
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