Migrate to Snowfall (#1)

Reviewed-on: #1
Co-authored-by: Evan Reichard <evan@reichard.io>
Co-committed-by: Evan Reichard <evan@reichard.io>

modules/nixos/system/networking/default.nix

@@ -0,0 +1,71 @@
+{ config, lib, pkgs, namespace, ... }:
+let
+  inherit (lib) types mkIf mkForce mkOption mkEnableOption;
+  inherit (lib.${namespace}) mkBoolOpt enabled;
+
+  cfg = config.${namespace}.system.networking;
+in
+{
+  options.${namespace}.system.networking = {
+    enable = mkEnableOption "Enable Networking";
+    enableIWD = mkEnableOption "Enable IWD";
+    useDHCP = mkBoolOpt true "Use DHCP";
+    useNetworkd = mkBoolOpt false "Use networkd";
+    useStatic = mkOption {
+      type = types.nullOr (types.submodule {
+        options = {
+          interface = mkOption {
+            type = lib.types.str;
+            description = "Network interface name";
+            example = "enp0s3";
+          };
+          address = mkOption {
+            type = types.str;
+            description = "Static IP address";
+            example = "10.0.20.200";
+          };
+          defaultGateway = mkOption {
+            type = types.str;
+            description = "Default gateway IP";
+            example = "10.0.20.254";
+          };
+          nameservers = mkOption {
+            type = types.listOf types.str;
+            description = "List of DNS servers";
+            example = [ "10.0.20.254" "8.8.8.8" ];
+            default = [ "8.8.8.8" "8.8.4.4" ];
+          };
+        };
+      });
+      default = null;
+      description = "Static Network Configuration";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [
+      mtr
+      tcpdump
+      traceroute
+    ];
+
+    reichard.user.extraGroups = [ "network" ];
+
+    networking = {
+      firewall = enabled;
+      useDHCP = mkForce (cfg.useDHCP && cfg.useStatic == null);
+      useNetworkd = cfg.useNetworkd;
+    } // (lib.optionalAttrs (cfg.enableIWD) {
+      wireless.iwd = {
+        enable = true;
+        settings.General.EnableNetworkConfiguration = true;
+      };
+    }) // (lib.optionalAttrs (cfg.useStatic != null) {
+      inherit (cfg.useStatic) defaultGateway nameservers;
+      interfaces.${cfg.useStatic.interface}.ipv4.addresses = [{
+        inherit (cfg.useStatic) address;
+        prefixLength = 24;
+      }];
+    });
+  };
+}

modules/nixos/system/networking/networkmanager/default.nix

@@ -0,0 +1,27 @@
+{ config, lib, namespace, ... }:
+let
+  inherit (lib) mkIf;
+
+  cfg = config.${namespace}.system.networking;
+in
+{
+  config = mkIf cfg.enable {
+    reichard.user.extraGroups = [ "networkmanager" ];
+
+    networking.networkmanager = {
+      enable = true;
+      wifi.backend = mkIf cfg.enableIWD "iwd";
+
+      connectionConfig = {
+        "connection.mdns" = "2";
+      };
+
+      # unmanaged = [
+      #   "interface-name:br-*"
+      #   "interface-name:rndis*"
+      # ]
+      # ++ lib.optionals config.${namespace}.virtualisation.podman.enable [ "interface-name:docker*" ]
+      # ++ lib.optionals config.${namespace}.virtualisation.kvm.enable [ "interface-name:virbr*" ];
+    };
+  };
+}