{ config, lib, pkgs, secrets, ... }: { sops.secrets."matrix/synapse/turnconfig" = { owner = config.users.users.matrix-synapse.name; group = config.users.users.matrix-synapse.group; }; sops.secrets."matrix/coturn/static-auth-secret" = { owner = config.users.users.turnserver.name; group = config.users.users.turnserver.group; }; services.matrix-synapse-next = { extraConfigFiles = [ config.sops.secrets."matrix/synapse/turnconfig".path ]; settings = { turn_uris = [ "turns:turn.pvv.ntnu.no:443?transport=tcp" "turns:turn.pvv.ntnu.no:443?transport=udp" "turns:turn.pvv.ntnu.no:5349?transport=tcp" "turns:turn.pvv.ntnu.no:5349?transport=udp" "turns:turn.pvv.ntnu.no:3478?transport=udp" "turns:turn.pvv.ntnu.no:3478?transport=tcp" "turn:turn.pvv.ntnu.no:3478?transport=udp" "turn:turn.pvv.ntnu.no:3478?transport=tcp" "turns:turn.pvv.ntnu.no:3479?transport=tcp" "turns:turn.pvv.ntnu.no:3479?transport=udp" "turn:turn.pvv.ntnu.no:3479?transport=tcp" "turn:turn.pvv.ntnu.no:3479?transport=udp" ]; }; }; security.acme.certs.${config.services.coturn.realm} = { email = "drift@pvv.ntnu.no"; listenHTTP = "129.241.210.213:80"; reloadServices = [ "coturn.service" ]; }; users.users.turnserver.extraGroups = [ "acme" ]; systemd.services."acme-${config.services.coturn.realm}".serviceConfig = { AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ]; }; services.coturn = rec { enable = true; realm = "turn.pvv.ntnu.no"; cert = "${config.security.acme.certs.${realm}.directory}/full.pem"; pkey = "${config.security.acme.certs.${realm}.directory}/key.pem"; use-auth-secret = true; # World readable but I dont think it's that bad static-auth-secret-file = config.sops.secrets."matrix/coturn/static-auth-secret".path; secure-stun = true; listening-ips = [ "129.241.210.213" "2001:700:300:1900::213" ]; tls-listening-port = 443; alt-tls-listening-port = 5349; listening-port = 3478; min-port = 49000; max-port = 50000; no-tls = false; no-dtls = false; no-tcp-relay = false; extraConfig = '' verbose # ban private IP ranges 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 denied-peer-ip=::1 denied-peer-ip=64:ff9b::-64:ff9b::ffff:ffff denied-peer-ip=::ffff:0.0.0.0-::ffff:255.255.255.255 denied-peer-ip=100::-100::ffff:ffff:ffff:ffff denied-peer-ip=2001::-2001:1ff:ffff:ffff:ffff:ffff:ffff:ffff denied-peer-ip=2002::-2002:ffff:ffff:ffff:ffff:ffff:ffff:ffff denied-peer-ip=fc00::-fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff denied-peer-ip=fe80::-febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff denied-peer-ip=10.0.0.0-10.255.255.255 denied-peer-ip=192.168.0.0-192.168.255.255 denied-peer-ip=172.16.0.0-172.31.255.255 #user-quota=120 #total-quota=1200 ''; }; networking.firewall = { interfaces.ens18 = let range = with config.services.coturn; [ { from = min-port; to = max-port; } ]; in { allowedUDPPortRanges = range; allowedUDPPorts = [ 443 3478 3479 5349 ]; allowedTCPPortRanges = range; allowedTCPPorts = [ 443 3478 3479 5349 ]; }; }; }