Squashed commit of the following:

commit bf4873eb012235b4d82cd79c4f508064ead301ab Author: Joao Porta <jpedro.porta@gmail.com> Date: Fri Jul 17 17:24:26 2026 -0300 wake on lan
2026-07-17 17:25:16 -03:00
parent 85d5fa453a
commit cdbad8910c
8 changed files with 243 additions and 10 deletions
@@ -0,0 +1,71 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  cfg = config.custom.wake-on-lan;
+
+  iface = "enp14s0";
+
+  mac = "d8:43:ae:5a:ae:12";
+
+  wake-jpporta-nixos = pkgs.writeShellScriptBin "wake-jpporta-nixos" ''
+    exec ${pkgs.wakeonlan}/bin/wakeonlan -i "''${1:-255.255.255.255}" ${mac}
+  '';
+in
+{
+  options.custom.wake-on-lan = {
+    enable = lib.mkEnableOption "Wake-on-LAN on the wired NIC (magic-packet mode)";
+  };
+
+  config = lib.mkIf cfg.enable {
+    # Keep `wol g` applied on the NIC after the link is up (boot path).
+    systemd.services."wol-${iface}" = {
+      description = "Enable Wake-on-LAN (magic packet) on ${iface}";
+      wantedBy = [ "multi-user.target" ];
+      wants = [
+        "network-online.target"
+        "NetworkManager.service"
+      ];
+      after = [
+        "network-online.target"
+        "NetworkManager.service"
+        "NetworkManager-wait-online.service"
+      ];
+      serviceConfig = {
+        Type = "oneshot";
+        RemainAfterExit = true;
+        ExecStart = "${pkgs.ethtool}/bin/ethtool -s ${iface} wol g";
+      };
+    };
+
+    # Re-apply `wol g` after resume from suspend / hibernate so NetworkManager
+    # cannot silently drop the WOL flag on link renegotiation.
+    systemd.services."wol-${iface}-resume" = {
+      description = "Re-apply Wake-on-LAN (magic packet) on ${iface} after resume";
+      wantedBy = [
+        "suspend.target"
+        "hibernate.target"
+        "hybrid-sleep.target"
+      ];
+      after = [
+        "systemd-suspend.service"
+        "systemd-hibernate.service"
+        "systemd-hybrid-sleep.service"
+      ];
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = "${pkgs.ethtool}/bin/ethtool -s ${iface} wol g";
+      };
+    };
+
+    environment.systemPackages = [
+      pkgs.ethtool
+      pkgs.wakeonlan
+      wake-jpporta-nixos
+    ];
+  };
+}