feat(k-radius): Allow to enable extra mods and sites

machines/vault01/k-radius/module.nix

@@ -11,6 +11,9 @@ let
     mkIf
     mkOption
     types
+    mapAttrsToList
+    optionalString
+    zipListsWith
     ;
 
   settingsFormat = pkgs.formats.toml { };
@@ -44,6 +47,32 @@ in
       description = "File to the auth token for the service account.";
     };
 
+    extra-mods = mkOption {
+      type = types.attrsOf types.path;
+      description = "Additional files to be linked in mods-enabled.";
+      default = { };
+    };
+
+    extra-sites = mkOption {
+      type = types.attrsOf types.path;
+      description = "Additional files to be linked in sites-enabled.";
+      default = { };
+    };
+
+    dictionary = mkOption {
+      type = types.attrsOf (
+        types.enum [
+          "abinary"
+          "date"
+          "ipaddr"
+          "integer"
+          "string"
+        ]
+      );
+      description = "Declare additionnal attributes to be listed in the dictionary.";
+      default = { };
+    };
+
     radiusClients = mkOption {
       type = types.attrsOf (
         types.submodule {
@@ -77,6 +106,12 @@ in
     };
 
     privateKeyPasswordFile = mkOption { type = types.path; };
+
+    checkConfiguration = mkOption {
+      type = types.bool;
+      description = "Check the configuration before starting the deamon. Usefull for debugging.";
+      default = false;
+    };
   };
 
   config = mkIf cfg.enable {
@@ -104,6 +139,8 @@ in
       wantedBy = [ "multi-user.target" ];
       after = [ "network.target" ];
       wants = [ "network.target" ];
+      startLimitIntervalSec = 20;
+      startLimitBurst = 5;
 
       preStart = ''
         mkdir -p ${cfg.configDir}
@@ -164,8 +201,35 @@ in
         sed -i ${cfg.configDir}/mods-available/eap \
           -e "s/whatever/$(cat "${cfg.privateKeyPasswordFile}")/"
 
+        # Build the dictionary
+        cat <<EOF > ${cfg.configDir}/dictionary
+        ${
+          let
+            attrs = mapAttrsToList (name: type: { inherit name type; }) cfg.dictionary;
+            idList = builtins.genList (id: 3000 + id) (builtins.length attrs);
+          in
+          builtins.concatStringsSep "\n" (
+            zipListsWith ({ name, type }: id: "ATTRIBUTE ${name} ${toString id} ${type}") attrs idList
+          )
+        }
+        EOF
+
+        # Link extra-mods
+        ${builtins.concatStringsSep "\n" (
+          mapAttrsToList (name: path: "ln -nsf ${path} ${cfg.configDir}/mods-enabled/${name}") cfg.extra-mods
+        )}
+
+        # Link extra-sites
+        ${builtins.concatStringsSep "\n" (
+          mapAttrsToList (
+            name: path: "ln -nsf ${path} ${cfg.configDir}/sites-enabled/${name}"
+          ) cfg.extra-sites
+        )}
+
         # Check the configuration
-        # ${pkgs.freeradius}/bin/radiusd -C -d ${cfg.configDir} -l stdout
+        ${
+          optionalString (!cfg.checkConfiguration) "# "
+        }${pkgs.freeradius}/bin/radiusd -C -d ${cfg.configDir} -l stdout
       '';
 
       path = [
@@ -187,6 +251,7 @@ in
         LogsDirectory = "radius";
         StateDirectory = "radius";
         RuntimeDirectory = "radius";
+        AmbientCapabilities = "CAP_NET_BIND_SERVICE";
         Environment = [
           "KANIDM_RLM_CONFIG=/var/lib/radius/kanidm.toml"
           "PYTHONPATH=${rlm_python.pythonPath}"