1 files changed, 25 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/tasks/filesystems/cifs.nix b/nixpkgs/nixos/modules/tasks/filesystems/cifs.nix
new file mode 100644
index 000000000000..47ba0c03c563
--- /dev/null
+++ b/nixpkgs/nixos/modules/tasks/filesystems/cifs.nix
@@ -0,0 +1,25 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  inInitrd = any (fs: fs == "cifs") config.boot.initrd.supportedFilesystems;
+
+in
+
+{
+  config = {
+
+    system.fsPackages = mkIf (any (fs: fs == "cifs") config.boot.supportedFilesystems) [ pkgs.cifs-utils ];
+
+    boot.initrd.availableKernelModules = mkIf inInitrd
+      [ "cifs" "nls_utf8" "hmac" "md4" "ecb" "des_generic" "sha256" ];
+
+    boot.initrd.extraUtilsCommands = mkIf inInitrd
+      ''
+        copy_bin_and_libs ${pkgs.cifs-utils}/sbin/mount.cifs
+      '';
+
+  };
+}