From d79a5057d3cad9f3bca569c39090e06114d75946 Mon Sep 17 00:00:00 2001
From: volth <volth@webmaster.ms>
Date: Tue, 12 Jun 2018 13:14:15 +0000
Subject: [PATCH] nixos/nat: optional networking.nat.externalInterface (#41864)
to prevent "cannot coerce null to string" raise before the assertions are checked
---
nixos/modules/services/networking/nat.nix | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/nixos/modules/services/networking/nat.nix b/nixos/modules/services/networking/nat.nix
index c27ae3f66f65..89d8590093dd 100644
--- a/nixos/modules/services/networking/nat.nix
+++ b/nixos/modules/services/networking/nat.nix
@@ -50,7 +50,7 @@ let
# NAT from external ports to internal ports.
${concatMapStrings (fwd: ''
iptables -w -t nat -A nixos-nat-pre \
- -i ${cfg.externalInterface} -p ${fwd.proto} \
+ -i ${toString cfg.externalInterface} -p ${fwd.proto} \
--dport ${builtins.toString fwd.sourcePort} \
-j DNAT --to-destination ${fwd.destination}
@@ -81,7 +81,7 @@ let
${optionalString (cfg.dmzHost != null) ''
iptables -w -t nat -A nixos-nat-pre \
- -i ${cfg.externalInterface} -j DNAT \
+ -i ${toString cfg.externalInterface} -j DNAT \
--to-destination ${cfg.dmzHost}
''}