From 4e53f84c79c4b4670dcebf00c1c92928439a87b9 Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@flokli.de>
Date: Wed, 11 Mar 2020 00:26:51 +0100
Subject: [PATCH] nixos/zerotierone: switch from manually generating the .link
 file to use the module

Previously, systemd.network.links was only respected with networkd
enabled, but it's really udev taking care of links, no matter if
networkd is enabled or not.

With our module fixed, there's no need to manually manage the text file
anymore.

This was originally applied in 3d1079a20dafd82fac7ac857e63c91e787f4eaaa,
but was reverted due to 1115959a8d4d73ad73341563dc8bbf52230a281e causing
evaluation errors on hydra.
---
 .../modules/services/networking/zerotierone.nix | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/nixos/modules/services/networking/zerotierone.nix b/nixos/modules/services/networking/zerotierone.nix
index 042c4d5addd..cf39ed065a7 100644
--- a/nixos/modules/services/networking/zerotierone.nix
+++ b/nixos/modules/services/networking/zerotierone.nix
@@ -69,13 +69,14 @@ in
     environment.systemPackages = [ cfg.package ];
 
     # Prevent systemd from potentially changing the MAC address
-    environment.etc."systemd/network/50-zerotier.link".text = ''
-      [Match]
-      OriginalName=zt*
-
-      [Link]
-      AutoNegotiation=false
-      MACAddressPolicy=none
-    '';
+    systemd.network.links."50-zerotier" = {
+      matchConfig = {
+        OriginalName = "zt*";
+      };
+      linkConfig = {
+        AutoNegotiation = false;
+        MACAddressPolicy = "none";
+      };
+    };
   };
 }