bgpwtf: move tests from eoip to gretap
This removes our dependency on a userspace EoIP implementation that is
mildly broken, and that doesn't build correctly on new gcc versions.
Change-Id: I404c79585336ebaf3bc1761b54ee2433f0841324
diff --git a/bgpwtf/machines/modules/gretap.nix b/bgpwtf/machines/modules/gretap.nix
new file mode 100644
index 0000000..f4e1a7b
--- /dev/null
+++ b/bgpwtf/machines/modules/gretap.nix
@@ -0,0 +1,62 @@
+# Support for GRETap interfaces in NixOS' scripted networking.
+#
+# We currently only use it in the edge01.waw test framework to bring vlans
+# across test VMs.
+
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+ cfg = config.hscloud.gretap;
+
+in {
+ options.hscloud.gretap = {
+ interfaces = mkOption {
+ type = with types; attrsOf (submodule {
+ options = {
+ localV4 = mkOption {
+ type = types.str;
+ description = "Local outer IPv4 address";
+ };
+ remoteV4 = mkOption {
+ type = types.str;
+ description = "Remote outer IPv4 address";
+ };
+ id = mkOption {
+ type = types.int;
+ description = "Tunnel ID";
+ };
+ parent = mkOption {
+ type = types.str;
+ description = "Parent/outer device";
+ };
+ };
+ });
+ description = ''
+ GRETap interfaces to create.
+ '';
+ };
+ };
+
+ config.boot.kernelModules = [ "fou" ];
+ config.systemd.services = mapAttrs' (name: value: nameValuePair "${name}-gretap" {
+ wants = [
+ "${name}-netdev.service"
+ "network-addresses-${value.parent}.service"
+ ];
+ after = [
+ "network-addresses-${value.parent}.service"
+ ];
+ before = [
+ "network-addresses-${name}.service"
+ ];
+ wantedBy = [
+ "network-addresses-${name}.service"
+ ];
+ serviceConfig = {
+ Type = "oneshot";
+ ExecStart = "${pkgs.iproute}/bin/ip link add name ${name} type gretap remote ${value.remoteV4} local ${value.localV4} key ${toString value.id}";
+ };
+ }) cfg.interfaces;
+}