Adding a wake on lan module.

svn path=/nixos/trunk/; revision=24958

1 files changed, 19 insertions, 3 deletions

diff --git a/modules/config/power-management.nix b/modules/config/power-management.nix
index ce67285140e..6baefa12791 100644
--- a/modules/config/power-management.nix
+++ b/modules/config/power-management.nix
@@ -10,9 +10,14 @@ let
     ''
       #! ${pkgs.stdenv.shell}
       action="$1"
-      if [ "$action" = "resume" ]; then
-          ${cfg.resumeCommands}
-          ${cfg.powerUpCommands}
+      case "$action" in
+          hibernate|suspend)
+              ${cfg.powerDownCommands}
+              ;;
+          thaw|resume)
+              ${cfg.resumeCommands}
+              ${cfg.powerUpCommands}
+              ;;
       fi
     '';
 
@@ -50,6 +55,17 @@ in
             it resumes from suspend or hibernation.
           '';
       };
+
+      powerDownCommands = mkOption {
+        default = "";
+        example = "${pkgs.hdparm}/sbin/hdparm -B 255 /dev/sda";
+        description =
+          ''
+            Commands executed when the machine powers down.  That is,
+            they're executed both when the system shuts down and when
+            it goes to suspend or hibernation.
+          '';
+      };
       
     };