1 files changed, 86 insertions, 0 deletions
diff --git a/nixos/tests/suricata.nix b/nixos/tests/suricata.nix
new file mode 100644
index 000000000000..e1cdd91aaaa2
--- /dev/null
+++ b/nixos/tests/suricata.nix
@@ -0,0 +1,86 @@
+import ./make-test-python.nix (
+  { lib, pkgs, ... }:
+  {
+    name = "suricata";
+    meta.maintainers = with lib.maintainers; [ felbinger ];
+
+    nodes = {
+      ids = {
+        imports = [
+          ../modules/profiles/minimal.nix
+          ../modules/services/networking/suricata/default.nix
+        ];
+
+        networking.interfaces.eth1 = {
+          useDHCP = false;
+          ipv4.addresses = [
+            {
+              address = "192.168.1.2";
+              prefixLength = 24;
+            }
+          ];
+        };
+
+        # disable suricata-update because this requires an Internet connection
+        systemd.services.suricata-update.enable = false;
+
+        # install suricata package to make suricatasc program available
+        environment.systemPackages = with pkgs; [ suricata ];
+
+        services.suricata = {
+          enable = true;
+          settings = {
+            vars.address-groups.HOME_NET = "192.168.1.0/24";
+            unix-command.enabled = true;
+            outputs = [ { fast.enabled = true; } ];
+            af-packet = [ { interface = "eth1"; } ];
+            classification-file = "${pkgs.suricata}/etc/suricata/classification.config";
+          };
+        };
+
+        # create suricata.rules with the rule to detect the output of the id command
+        systemd.tmpfiles.rules = [
+          ''f /var/lib/suricata/rules/suricata.rules 644 suricata suricata 0 alert ip any any -> any any (msg:"GPL ATTACK_RESPONSE id check returned root"; content:"uid=0|28|root|29|"; classtype:bad-unknown; sid:2100498; rev:7; metadata:created_at 2010_09_23, updated_at 2019_07_26;)''
+        ];
+      };
+      helper = {
+        imports = [ ../modules/profiles/minimal.nix ];
+
+        networking.interfaces.eth1 = {
+          useDHCP = false;
+          ipv4.addresses = [
+            {
+              address = "192.168.1.1";
+              prefixLength = 24;
+            }
+          ];
+        };
+
+        services.nginx = {
+          enable = true;
+          virtualHosts."localhost".locations = {
+            "/id/".return = "200 'uid=0(root) gid=0(root) groups=0(root)'";
+          };
+        };
+        networking.firewall.allowedTCPPorts = [ 80 ];
+      };
+    };
+
+    testScript = ''
+      start_all()
+
+      # check that configuration has been applied correctly with suricatasc
+      with subtest("suricata configuration test"):
+          ids.wait_for_unit("suricata.service")
+          assert '1' in ids.succeed("suricatasc -c 'iface-list' | ${pkgs.jq}/bin/jq .message.count")
+
+      # test detection of events based on a static ruleset (output of id command)
+      with subtest("suricata rule test"):
+          helper.wait_for_unit("nginx.service")
+          ids.wait_for_unit("suricata.service")
+
+          ids.succeed("curl http://192.168.1.1/id/")
+          assert "id check returned root [**] [Classification: Potentially Bad Traffic]" in ids.succeed("tail -n 1 /var/log/suricata/fast.log"), "Suricata didn't detect the output of id comment"
+    '';
+  }
+)