project: initial commit

1 files changed, 64 insertions, 0 deletions

diff --git a/modules/services/coturn.nix b/modules/services/coturn.nix
new file mode 100644
index 0000000..967ba60
--- /dev/null
+++ b/modules/services/coturn.nix
@@ -0,0 +1,64 @@
+{ config, lib, ... }:
+
+with lib;
+let
+  turnRange = with config.services.coturn; [{
+    from = min-port;
+    to = max-port;
+  }];
+
+  cfg = config.modules.services.coturn;
+in
+{
+  options.modules.services.coturn = {
+    enable = mkEnableOption "coturn";
+    domain = mkOption { type = types.str; default = config.networking.hostName; };
+    shared_secret = mkOption { type = types.str; };
+    tls.acmeHost = mkOption { type = types.str; default = cfg.domain; };
+  };
+
+  config = mkIf cfg.enable {
+    services.coturn = {
+      enable = true;
+      use-auth-secret = true;
+      static-auth-secret = cfg.shared_secret;
+      realm = cfg.domain;
+      cert = "${config.security.acme.certs.${cfg.tls.acmeHost}.directory}/fullchain.pem";
+      pkey = "${config.security.acme.certs.${cfg.tls.acmeHost}.directory}/key.pem";
+
+      no-tcp-relay = true;
+      no-cli = true;
+
+      extraConfig = ''
+        user-quota=12
+        total-quota=1200
+
+        no-loopback-peers
+        no-multicast-peers
+        denied-peer-ip=0.0.0.0-0.255.255.255
+        denied-peer-ip=10.0.0.0-10.255.255.255
+        denied-peer-ip=100.64.0.0-100.127.255.255
+        denied-peer-ip=127.0.0.0-127.255.255.255
+        denied-peer-ip=169.254.0.0-169.254.255.255
+        denied-peer-ip=172.16.0.0-172.31.255.255
+        denied-peer-ip=192.0.0.0-192.0.0.255
+        denied-peer-ip=192.0.2.0-192.0.2.255
+        denied-peer-ip=192.88.99.0-192.88.99.255
+        denied-peer-ip=192.168.0.0-192.168.255.255
+        denied-peer-ip=198.18.0.0-198.19.255.255
+        denied-peer-ip=198.51.100.0-198.51.100.255
+        denied-peer-ip=203.0.113.0-203.0.113.255
+        denied-peer-ip=240.0.0.0-255.255.255.255
+      '';
+    };
+
+    systemd.services.coturn = {
+      serviceConfig.SupplementaryGroups = [ "acme" ];
+    };
+
+    networking.firewall.allowedUDPPortRanges = turnRange;
+    networking.firewall.allowedTCPPortRanges = turnRange;
+    networking.firewall.allowedTCPPorts = [ 3478 3479 5349 5350 ];
+    networking.firewall.allowedUDPPorts = [ 3478 3479 5349 5350 ];
+  };
+}