nixos/tests: add babeld

nixos/tests/all-tests.nix

@@ -25,6 +25,7 @@ in
   atd = handleTest ./atd.nix {};
   automysqlbackup = handleTest ./automysqlbackup.nix {};
   avahi = handleTest ./avahi.nix {};
+  babeld = handleTest ./babeld.nix {};
   bcachefs = handleTestOn ["x86_64-linux"] ./bcachefs.nix {}; # linux-4.18.2018.10.12 is unsupported on aarch64
   beanstalkd = handleTest ./beanstalkd.nix {};
   beegfs = handleTestOn ["x86_64-linux"] ./beegfs.nix {}; # beegfs is unsupported on aarch64

nixos/tests/babeld.nix

@@ -0,0 +1,148 @@
+
+import ./make-test.nix ({ pkgs, lib, ...} : {
+  name = "babeld";
+  meta = with pkgs.stdenv.lib.maintainers; {
+    maintainers = [ hexa ];
+  };
+
+  nodes =
+    { client = { pkgs, lib, ... }:
+      {
+        virtualisation.vlans = [ 10 ];
+
+        networking = {
+          useDHCP = false;
+          interfaces."eth1" = {
+            ipv4.addresses = lib.mkForce [ { address = "192.168.10.2"; prefixLength = 24; } ];
+            ipv4.routes = lib.mkForce [ { address = "0.0.0.0"; prefixLength = 0; via = "192.168.10.1"; } ];
+            ipv6.addresses = lib.mkForce [ { address = "2001:db8:10::2"; prefixLength = 64; } ];
+            ipv6.routes = lib.mkForce [ { address = "::"; prefixLength = 0; via = "2001:db8:10::1"; } ];
+          };
+        };
+      };
+
+      localRouter = { pkgs, lib, ... }:
+      {
+        virtualisation.vlans = [ 10 20 ];
+
+        boot.kernel.sysctl."net.ipv4.conf.all.forwarding" = 1;
+        boot.kernel.sysctl."net.ipv6.conf.all.forwarding" = 1;
+
+        networking = {
+          useDHCP = false;
+          firewall.enable = false;
+
+          interfaces."eth1" = {
+            ipv4.addresses = lib.mkForce [ { address = "192.168.10.1"; prefixLength = 24; } ];
+            ipv6.addresses = lib.mkForce [ { address = "2001:db8:10::1"; prefixLength = 64; } ];
+          };
+
+          interfaces."eth2" = {
+            ipv4.addresses = lib.mkForce [ { address = "192.168.20.1"; prefixLength = 24; } ];
+            ipv6.addresses = lib.mkForce [ { address = "2001:db8:20::1"; prefixLength = 64; } ];
+          };
+        };
+
+        services.babeld = {
+          enable = true;
+          interfaces.eth2 = {
+            hello-interval = 1;
+            type = "wired";
+          };
+          extraConfig = ''
+            local-port-readwrite 33123
+
+            import-table 254 # main
+            export-table 254 # main
+
+            in ip 192.168.10.0/24 deny
+            in ip 192.168.20.0/24 deny
+            in ip 2001:db8:10::/64 deny
+            in ip 2001:db8:20::/64 deny
+
+            in ip 192.168.30.0/24 allow
+            in ip 2001:db8:30::/64 allow
+
+            in deny
+
+            redistribute local proto 2
+            redistribute local deny
+          '';
+        };
+      };
+      remoteRouter = { pkgs, lib, ... }:
+      {
+        virtualisation.vlans = [ 20 30 ];
+
+        boot.kernel.sysctl."net.ipv4.conf.all.forwarding" = 1;
+        boot.kernel.sysctl."net.ipv6.conf.all.forwarding" = 1;
+
+        networking = {
+          useDHCP = false;
+          firewall.enable = false;
+
+          interfaces."eth1" = {
+            ipv4.addresses = lib.mkForce [ { address = "192.168.20.2"; prefixLength = 24; } ];
+            ipv6.addresses = lib.mkForce [ { address = "2001:db8:20::2"; prefixLength = 64; } ];
+          };
+
+          interfaces."eth2" = {
+            ipv4.addresses = lib.mkForce [ { address = "192.168.30.1"; prefixLength = 24; } ];
+            ipv6.addresses = lib.mkForce [ { address = "2001:db8:30::1"; prefixLength = 64; } ];
+          };
+        };
+
+        services.babeld = {
+          enable = true;
+          interfaces.eth1 = {
+            hello-interval = 1;
+            type = "wired";
+          };
+          extraConfig = ''
+            local-port-readwrite 33123
+
+            import-table 254 # main
+            export-table 254 # main
+
+            in ip 192.168.20.0/24 deny
+            in ip 192.168.30.0/24 deny
+            in ip 2001:db8:20::/64 deny
+            in ip 2001:db8:30::/64 deny
+
+            in ip 192.168.10.0/24 allow
+            in ip 2001:db8:10::/64 allow
+
+            in deny
+
+            redistribute local proto 2
+            redistribute local deny
+          '';
+        };
+
+      };
+    };
+
+  testScript =
+    ''
+      startAll;
+
+      $client->waitForUnit("network-online.target");
+      $localRouter->waitForUnit("network-online.target");
+      $remoteRouter->waitForUnit("network-online.target");
+
+      $localRouter->waitForUnit("babeld.service");
+      $remoteRouter->waitForUnit("babeld.service");
+
+      $localRouter->waitUntilSucceeds("ip route get 192.168.30.1");
+      $localRouter->waitUntilSucceeds("ip route get 2001:db8:30::1");
+
+      $remoteRouter->waitUntilSucceeds("ip route get 192.168.10.1");
+      $remoteRouter->waitUntilSucceeds("ip route get 2001:db8:10::1");
+
+      $client->succeed("ping -c1 192.168.30.1");
+      $client->succeed("ping -c1 2001:db8:30::1");
+
+      $remoteRouter->succeed("ping -c1 192.168.10.2");
+      $remoteRouter->succeed("ping -c1 2001:db8:10::2");
+    '';
+})

pkgs/tools/networking/babeld/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, nixosTests }:
 
 stdenv.mkDerivation rec {
   pname = "babeld";
@@ -13,6 +13,8 @@ stdenv.mkDerivation rec {
     makeFlags="PREFIX=$out ETCDIR=$out/etc"
   '';
 
+  passthru.tests.babeld = nixosTests.babeld;
+
   meta = {
     homepage = http://www.pps.univ-paris-diderot.fr/~jch/software/babel/;
     description = "Loop-avoiding distance-vector routing protocol";