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-rw-r--r--krebs/3modules/acl.nix55
1 files changed, 55 insertions, 0 deletions
diff --git a/krebs/3modules/acl.nix b/krebs/3modules/acl.nix
new file mode 100644
index 000000000..9cdbb6cff
--- /dev/null
+++ b/krebs/3modules/acl.nix
@@ -0,0 +1,55 @@
+{ config, lib, pkgs, ... }: let
+ parents = dir:
+ if dir == "/" then
+ [ dir ]
+ else
+ [ dir ] ++ parents (builtins.dirOf dir)
+ ;
+in {
+ options.krebs.acl = lib.mkOption {
+ type = lib.types.attrsOf (lib.types.attrsOf (lib.types.submodule ({ config, ... }: {
+ options = {
+ rule = lib.mkOption {
+ type = lib.types.str;
+ default = config._module.args.name;
+ };
+ default = lib.mkOption {
+ type = lib.types.bool;
+ default = !config.parents;
+ };
+ recursive = lib.mkOption {
+ type = lib.types.bool;
+ default = !config.parents;
+ };
+ parents = lib.mkOption {
+ type = lib.types.bool;
+ default = false;
+ description = ''
+ apply ACL to every parent folder
+ '';
+ };
+ };
+ })));
+ default = {};
+ };
+ config = {
+ systemd.services = lib.mapAttrs' (path: rules: lib.nameValuePair "acl-${lib.replaceChars ["/"] ["_"] path}" {
+ wantedBy = [ "multi-user.target" ];
+ path = [
+ pkgs.acl
+ pkgs.coreutils
+ ];
+ serviceConfig = {
+ ExecStart = pkgs.writers.writeDash "acl" (lib.concatStrings (
+ lib.mapAttrsToList (_: rule: ''
+ setfacl -${lib.optionalString rule.recursive "R"}m ${rule.rule} ${path}
+ ${lib.optionalString rule.default "setfacl -${lib.optionalString rule.recursive "R"}dm ${rule.rule} ${path}"}
+ ${lib.optionalString rule.parents (lib.concatMapStringsSep "\n" (folder: "setfacl -m ${rule.rule} ${folder}") (parents path))}
+ '') rules
+ ));
+ RemainAfterExit = true;
+ Type = "simple";
+ };
+ }) config.krebs.acl;
+ };
+}