1 files changed, 125 insertions, 0 deletions
diff --git a/nixpkgs/nixos/tests/yggdrasil.nix b/nixpkgs/nixos/tests/yggdrasil.nix
new file mode 100644
index 000000000000..468fcf671274
--- /dev/null
+++ b/nixpkgs/nixos/tests/yggdrasil.nix
@@ -0,0 +1,125 @@
+let
+  aliceIp6 = "200:3b91:b2d8:e708:fbf3:f06:fdd5:90d0";
+  aliceKeys = {
+    EncryptionPublicKey = "13e23986fe76bc3966b42453f479bc563348b7ff76633b7efcb76e185ec7652f";
+    EncryptionPrivateKey = "9f86947b15e86f9badac095517a1982e39a2db37ca726357f95987b898d82208";
+    SigningPublicKey = "e2c43349083bc1e998e4ec4535b4c6a8f44ca9a5a8e07336561267253b2be5f4";
+    SigningPrivateKey = "fe3add8da35316c05f6d90d3ca79bd2801e6ccab6d37e5339fef4152589398abe2c43349083bc1e998e4ec4535b4c6a8f44ca9a5a8e07336561267253b2be5f4";
+  };
+  bobIp6 = "201:ebbd:bde9:f138:c302:4afa:1fb6:a19a";
+  bobConfig = {
+    InterfacePeers = {
+      eth1 = [ "tcp://192.168.1.200:12345" ];
+    };
+    MulticastInterfaces = [ "eth1" ];
+    LinkLocalTCPPort = 54321;
+    EncryptionPublicKey = "c99d6830111e12d1b004c52fe9e5a2eef0f6aefca167aca14589a370b7373279";
+    EncryptionPrivateKey = "2e698a53d3fdce5962d2ff37de0fe77742a5c8b56cd8259f5da6aa792f6e8ba3";
+    SigningPublicKey = "de111da0ec781e45bf6c63ecb45a78c24d7d4655abfaeea83b26c36eb5c0fd5b";
+    SigningPrivateKey = "2a6c21550f3fca0331df50668ffab66b6dce8237bcd5728e571e8033b363e247de111da0ec781e45bf6c63ecb45a78c24d7d4655abfaeea83b26c36eb5c0fd5b";
+  };
+
+in import ./make-test-python.nix ({ pkgs, ...} : {
+  name = "yggdrasil";
+  meta = with pkgs.stdenv.lib.maintainers; {
+    maintainers = [ gazally ];
+  };
+
+  nodes = rec {
+    # Alice is listening for peerings on a specified port,
+    # but has multicast peering disabled.  Alice has part of her
+    # yggdrasil config in Nix and part of it in a file.
+    alice =
+      { ... }:
+      {
+        networking = {
+          interfaces.eth1.ipv4.addresses = [{
+            address = "192.168.1.200";
+            prefixLength = 24;
+          }];
+          firewall.allowedTCPPorts = [ 80 12345 ];
+        };
+        services.httpd.enable = true;
+        services.httpd.adminAddr = "foo@example.org";
+
+        services.yggdrasil = {
+          enable = true;
+          config = {
+            Listen = ["tcp://0.0.0.0:12345"];
+            MulticastInterfaces = [ ];
+          };
+          configFile = toString (pkgs.writeTextFile {
+                         name = "yggdrasil-alice-conf";
+                         text = builtins.toJSON aliceKeys;
+                       });
+        };
+      };
+
+    # Bob is set up to peer with Alice, and also to do local multicast
+    # peering.  Bob's yggdrasil config is in a file.
+    bob =
+      { ... }:
+      {
+        networking.firewall.allowedTCPPorts = [ 54321 ];
+        services.yggdrasil = {
+          enable = true;
+          openMulticastPort = true;
+          configFile = toString (pkgs.writeTextFile {
+                         name = "yggdrasil-bob-conf";
+                         text = builtins.toJSON bobConfig;
+                       });
+        };
+      };
+
+    # Carol only does local peering.  Carol's yggdrasil config is all Nix.
+    carol =
+      { ... }:
+      {
+        networking.firewall.allowedTCPPorts = [ 43210 ];
+        services.yggdrasil = {
+          enable = true;
+          denyDhcpcdInterfaces = [ "ygg0" ];
+          config = {
+            IfTAPMode = true;
+            IfName = "ygg0";
+            MulticastInterfaces = [ "eth1" ];
+            LinkLocalTCPPort = 43210;
+          };
+        };
+      };
+    };
+
+  testScript =
+    ''
+      import re
+
+      # Give Alice a head start so she is ready when Bob calls.
+      alice.start()
+      alice.wait_for_unit("yggdrasil.service")
+
+      bob.start()
+      carol.start()
+      bob.wait_for_unit("yggdrasil.service")
+      carol.wait_for_unit("yggdrasil.service")
+
+      ip_addr_show = "ip -o -6 addr show dev ygg0 scope global"
+      carol.wait_until_succeeds(f"[ `{ip_addr_show} | grep -v tentative | wc -l` -ge 1 ]")
+      carol_ip6 = re.split(" +|/", carol.succeed(ip_addr_show))[3]
+
+      # If Alice can talk to Carol, then Bob's outbound peering and Carol's
+      # local peering have succeeded and everybody is connected.
+      alice.wait_until_succeeds(f"ping -c 1 {carol_ip6}")
+      alice.succeed(f"ping -c 1 ${bobIp6}")
+
+      bob.succeed("ping -c 1 ${aliceIp6}")
+      bob.succeed(f"ping -c 1 {carol_ip6}")
+
+      carol.succeed("ping -c 1 ${aliceIp6}")
+      carol.succeed("ping -c 1 ${bobIp6}")
+
+      carol.fail("journalctl -u dhcpcd | grep ygg0")
+
+      alice.wait_for_unit("httpd.service")
+      carol.succeed("curl --fail -g http://[${aliceIp6}]")
+    '';
+})