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69 lines
1.5 KiB
Nix
69 lines
1.5 KiB
Nix
{
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lib,
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stdenv,
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replaceVarsWith,
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udevCheckHook,
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}:
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# Provides a facility to hook into rfkill changes.
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#
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# Exemplary usage:
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#
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# Add this package to udev.packages, e.g.:
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# udev.packages = [ pkgs.rfkill_udev ];
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#
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# Add a hook script in the managed etc directory, e.g.:
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# etc."rfkill.hook" = {
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# mode = "0755";
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# text = ''
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# #!${pkgs.runtimeShell}
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#
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# if [ "$RFKILL_STATE" -eq "1" ]; then
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# exec ${config.system.build.upstart}/sbin/initctl emit -n antenna-on
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# else
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# exec ${config.system.build.upstart}/sbin/initctl emit -n antenna-off
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# fi
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# '';
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# }
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# Note: this package does not need the binaries
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# in the rfkill package.
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let
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rfkillHook = replaceVarsWith {
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replacements = { inherit (stdenv) shell; };
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isExecutable = true;
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src = ./rfkill-hook.sh;
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};
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in
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stdenv.mkDerivation {
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name = "rfkill-udev";
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nativeBuildInputs = [
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udevCheckHook
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];
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doInstallCheck = true;
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dontUnpack = true;
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dontBuild = true;
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installPhase = ''
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mkdir -p "$out/etc/udev/rules.d/";
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cat > "$out/etc/udev/rules.d/90-rfkill.rules" << EOF
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SUBSYSTEM=="rfkill", ATTR{type}=="wlan", RUN+="$out/bin/rfkill-hook.sh"
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EOF
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mkdir -p "$out/bin/";
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cp ${rfkillHook} "$out/bin/rfkill-hook.sh"
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'';
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meta = with lib; {
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homepage = "http://wireless.kernel.org/en/users/Documentation/rfkill";
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description = "Rules+hook for udev to catch rfkill state changes";
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mainProgram = "rfkill-hook.sh";
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platforms = platforms.linux;
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license = licenses.mit;
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};
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}
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