nixpkgs/nixos/modules/programs/firejail.nix
2024-04-09 07:10:17 +02:00

105 lines
3.4 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.firejail;
wrappedBins = pkgs.runCommand "firejail-wrapped-binaries"
{ preferLocalBuild = true;
allowSubstitutes = false;
# take precedence over non-firejailed versions
meta.priority = -1;
}
''
mkdir -p $out/bin
mkdir -p $out/share/applications
${lib.concatStringsSep "\n" (lib.mapAttrsToList (command: value:
let
opts = if builtins.isAttrs value
then value
else { executable = value; desktop = null; profile = null; extraArgs = []; };
args = lib.escapeShellArgs (
opts.extraArgs
++ (optional (opts.profile != null) "--profile=${toString opts.profile}")
);
in
''
cat <<_EOF >$out/bin/${command}
#! ${pkgs.runtimeShell} -e
exec /run/wrappers/bin/firejail ${args} -- ${toString opts.executable} "\$@"
_EOF
chmod 0755 $out/bin/${command}
${lib.optionalString (opts.desktop != null) ''
substitute ${opts.desktop} $out/share/applications/$(basename ${opts.desktop}) \
--replace ${opts.executable} $out/bin/${command}
''}
'') cfg.wrappedBinaries)}
'';
in {
options.programs.firejail = {
enable = mkEnableOption (lib.mdDoc "firejail, a sandboxing tool for Linux");
wrappedBinaries = mkOption {
type = types.attrsOf (types.either types.path (types.submodule {
options = {
executable = mkOption {
type = types.path;
description = lib.mdDoc "Executable to run sandboxed";
example = literalExpression ''"''${lib.getBin pkgs.firefox}/bin/firefox"'';
};
desktop = mkOption {
type = types.nullOr types.path;
default = null;
description = lib.mdDoc ".desktop file to modify. Only necessary if it uses the absolute path to the executable.";
example = literalExpression ''"''${pkgs.firefox}/share/applications/firefox.desktop"'';
};
profile = mkOption {
type = types.nullOr types.path;
default = null;
description = lib.mdDoc "Profile to use";
example = literalExpression ''"''${pkgs.firejail}/etc/firejail/firefox.profile"'';
};
extraArgs = mkOption {
type = types.listOf types.str;
default = [];
description = lib.mdDoc "Extra arguments to pass to firejail";
example = [ "--private=~/.firejail_home" ];
};
};
}));
default = {};
example = literalExpression ''
{
firefox = {
executable = "''${lib.getBin pkgs.firefox}/bin/firefox";
profile = "''${pkgs.firejail}/etc/firejail/firefox.profile";
};
mpv = {
executable = "''${lib.getBin pkgs.mpv}/bin/mpv";
profile = "''${pkgs.firejail}/etc/firejail/mpv.profile";
};
}
'';
description = lib.mdDoc ''
Wrap the binaries in firejail and place them in the global path.
'';
};
};
config = mkIf cfg.enable {
security.wrappers.firejail =
{ setuid = true;
owner = "root";
group = "root";
source = "${lib.getBin pkgs.firejail}/bin/firejail";
};
environment.systemPackages = [ pkgs.firejail ] ++ [ wrappedBins ];
};
meta.maintainers = with maintainers; [ peterhoeg ];
}