hosts: Add custom wireguard tunnels

hosts/common/networking.nix

@@ -1,9 +1,13 @@
 { networking = {
   nameservers = [
-    "100.64.0.3"
     "45.11.45.11"
+    "100.64.0.3"
+    "fd42:d42:d42:53::1"
+    "fd42:d42:d42:54::1"
+    "172.23.0.53"
+    "172.20.0.53"
   ];
   resolvconf.extraConfig = ''
-    name_servers="100.64.0.3 45.11.45.11"
+    name_servers="100.64.0.3 45.11.45.11 fd42:d42:d42:53::1 fd42:d42:d42:54::1 172.23.0.53 172.20.0.53"
   '';
 };}

hosts/prefect/networking.nix

@@ -1,4 +1,4 @@
-{lib, ...}: {
+{lib, pkgs, ...}: {
   networking = {
     hostName = "prefect";
     nameservers = lib.mkForce [
@@ -28,5 +28,33 @@
       address = "fe80::1";
       interface = "enp1s0";
     };
+    wireguard = {
+      enable = true;
+      interfaces = {
+        wg0 = {
+          privateKeyFile = "/run/agenix/dn42-privkey";
+          listenPort = 480;
+          peers = [
+            {
+              publicKey = "wW5iNQcNa9VphZWicMdc8k7lJbVrXPMtzmWsHBwPqE0=";
+              persistentKeepalive = 15;
+              dynamicEndpointRefreshSeconds = 5;
+              allowedIPs = [
+                "fd00::/8" # DN42 IPv6
+                "172.20.0.0/14" # DN42 IPv4
+                "10.100.0.0/14" # ChaosVPN
+                "10.127.0.0/16" # NeoNetwork
+                "10.0.0.0/8" # Freifunk
+                "127.31.0.0/16" # ChaosVPN
+              ];
+            }
+          ];
+          postSetup = ''
+            ${pkgs.iproute}/bin/ip addr add 172.20.43.96/32 peer 172.20.43.97/32 dev wg0
+            ${pkgs.iproute}/bin/ip -6 addr add fe80::1/64 peer fe80::2/64 dev wg0
+          '';
+        };
+      };
+    };
   };
 }

hosts/zaphod/configuration.nix

@@ -27,6 +27,10 @@
     # Services
     ./services/modules.nix
 
+    # Agenix secrets
+    inputs.agenix.nixosModule
+    ./secret-files.nix
+
     # Machine-specific programs.
     ./programs/chromium.nix
     ./programs/dconf.nix

hosts/zaphod/networking.nix

@@ -1,4 +1,4 @@
-{lib, ...}: {
+{lib, pkgs, ...}: {
   networking = {
     enableB43Firmware = false;
     enableIPv6 = true;
@@ -22,5 +22,37 @@
       "9.9.9.9"
       "1.1.1.1"
     ];
+    wireguard = {
+      enable = true;
+      interfaces = {
+        wg0 = {
+          privateKeyFile = "/run/agenix/wg-privkey";
+          allowedIPsAsRoutes = false;
+          ips = [
+            "172.20.43.97/32"
+          ];
+          peers = [
+            {
+              publicKey = "e6kp9sca4XIzncKa9GEQwyOnMjje299Xg9ZdgXWMwHg=";
+              endpoint = "dn42.thehedgehog.me:480";
+              persistentKeepalive = 15;
+              dynamicEndpointRefreshSeconds = 5;
+              allowedIPs = [
+                "fd00::/8"
+                "172.20.0.0/14"
+                "10.100.0.0/14"
+                "10.127.0.0/16"
+                "10.0.0.0/8"
+                "172.31.0.0/16"
+              ];
+            }
+          ];
+          postSetup = ''
+            ${pkgs.iproute}/bin/ip addr add 172.20.43.97/32 peer 172.20.43.96/32 dev wg0
+            ${pkgs.iproute}/bin/ip -6 addr add fe80::2/64 peer fe80::1/64 dev wg0
+          '';
+        };
+      };
+    };
   };
 }

hosts/zaphod/secret-files.nix

@@ -0,0 +1,8 @@
+{
+  config.age.secrets = {
+    wg-privkey = {
+      file = ./secrets/wg-privkey.age;
+      path = "/run/agenix/wg-privkey";
+    };
+  };
+}

hosts/zaphod/secrets/secrets.nix

@@ -0,0 +1,7 @@
+let
+  yubi-back = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQDTVGi3PItsbUhFgnFZlqo1iUggL4npMg94+9FsyhEPfShcQwJK2/jJzjv5S9KPuk3cY7aoqyVFLbnasSBZPXmscJmOiVNvtWvHoC3QPXvf3IAcVZ5KOLpY2NJlPx/pAb31C6ewtg8v3VlyhL4zEp6M+AGwXX51tFDh2GnYD+7SNF+aMhKCrX63syAhgPy3F8mZ2RIDLAu+lsYlwdpWRkSEv9kcjX/6+3QgUWjfPBaKEeYID22ihSuj7+AiuAt0gM4q0TY/Hpcx+qDLonrIuBnm1hMZDgbv//D0sHIUxJQkGTKTEbkZxoh0Qri7UV/V6l3mETaG40deuemMU7RFY7Khl8RajNZ+9z0FdquS/HCt8+fYQk6eLneJrMIQ1bI4awrtblG3P2Yf2QUu+H3kfCQe44R3WjUugTbNtumVgyQBzl2dzlIVn1pZBeyZy70XCgbaFKkDR8Y/qZiUoZ0afP3vTOXhkn5UBfutTKwUiSGh3S8Ge5YhNgKHWE2eQp1ckEm0IMJV/q5Nsw/yBBXj/kfD8ekz96LQ+gP5JFLq4EaipXI7FM4aZNOBUZU1l/sCEuq7m997nrBucTKqGm7Ho3rq7bgdj4f6GyUJXSMOM1cN61LLrRumZGGTH8WghVL7ligxZyNFcQoudR8jfpf4mrgRxipQOe1A2umvuufMr+l/bw==";
+  yubi-main = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBBsOIMMZVmleClXfqUMrnmyh8PFuyiJqHKEZ51Xy746";
+  backup = "ssh-rsa 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";
+in {
+  "wg-privkey.age".publicKeys = [ yubi-back yubi-main backup ];
+}

hosts/zaphod/services/modules.nix

@@ -13,6 +13,7 @@
     ./pipewire.nix
     ./spotifyd.nix
     ./tailscale.nix
+    ./unbound.nix
     # ./yubikey-agent.nix
   ];
 }

hosts/zaphod/services/unbound.nix

@@ -0,0 +1,91 @@
+{pkgs, ...}: {
+  # Enable DN42 Certificates
+  security.pki.certificateFiles = [
+    (pkgs.fetchurl {
+      url = "https://aur.archlinux.org/cgit/aur.git/plain/dn42.crt?h=ca-certificates-dn42&id=646f7effb290adf25c7e9fea3b41bf055522ba29";
+      name = "dn42.crt";
+      sha256 = "sha256-wsMeC9/tlppSNZGrqfZFLAjv3AMj1KwIAWeh2XBpiYs=";
+    })
+  ];
+  services.unbound = {
+    enable = true;
+    resolveLocalQueries = true;
+    settings = {
+      server = {
+        local-zone = [
+          "\"20.172.in-addr.arpa.\" nodefault"
+          "\"21.172.in-addr.arpa.\" nodefault"
+          "\"22.172.in-addr.arpa.\" nodefault"
+          "\"23.172.in-addr.arpa.\" nodefault"
+          "\"10.in-addr.arpa.\" nodefault"
+          "\"d.f.ip6.arpa.\" nodefault"
+        ];
+        auto-trust-anchor-file = false;
+      };
+      forward-zone = [
+        {
+          name = ".";
+          forward-addr = [
+            "45.11.45.11"
+            "9.9.9.9"
+          ];
+        }
+        {
+          name = "thehedgehog.me.";
+          forward-addr = [
+            "100.64.0.3"
+          ];
+        }
+        {
+          name = "dn42";
+          forward-addr = [
+            "fd42:d42:d42:54::1"
+            "172.20.0.53"
+          ];
+        }
+        {
+          name = "20.172.in-addr.arpa";
+          forward-addr = [
+            "fd42:d42:d42:54::1"
+            "172.20.0.53"
+          ];
+        }
+        {
+          name = "21.172.in-addr.arpa";
+          forward-addr = [
+            "fd42:d42:d42:54::1"
+            "172.20.0.53"
+          ];
+        }
+        {
+          name = "22.172.in-addr.arpa";
+          forward-addr = [
+            "fd42:d42:d42:54::1"
+            "172.20.0.53"
+          ];
+        }
+        {
+          name = "23.172.in-addr.arpa";
+          forward-addr = [
+            "fd42:d42:d42:54::1"
+            "172.20.0.53"
+          ];
+        }
+        {
+          name = "10.in-addr.arpa";
+          forward-addr = [
+            "fd42:d42:d42:54::1"
+            "172.20.0.53"
+          ];
+        }
+        {
+          name = "d.f.ip6.arpa";
+          forward-addr = [
+            "fd42:d42:d42:54::1"
+            "172.20.0.53"
+          ];
+        }
+      ];
+    };
+  };
+}