125 lines
3.5 KiB
Nix
125 lines
3.5 KiB
Nix
{ config, lib, ... }:
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let
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cfg = config.services.coturn;
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inherit (lib)
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mkDefault
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mkEnableOption
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mkIf
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mkOption
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optionalString
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optionals
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types
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;
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in
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{
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options.services.coturn = {
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openFirewall = mkOption {
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type = types.bool;
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default = false;
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description = "Whether to open the firewall for coturn.";
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};
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debug = mkOption {
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type = types.bool;
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default = true;
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description = "Enable debug logging for coturn.";
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};
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sops = mkEnableOption "SOPS integration";
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};
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config = mkIf cfg.enable {
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services.coturn = {
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no-cli = mkDefault true;
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no-tcp-relay = mkDefault true;
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no-tls = mkDefault false;
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min-port = mkDefault 49000;
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max-port = mkDefault 50000;
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listening-port = mkDefault 3478;
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tls-listening-port = mkDefault 5349;
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use-auth-secret = true;
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static-auth-secret-file = mkIf cfg.sops config.sops.secrets."coturn/static-auth-secret".path;
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realm = mkDefault "turn.${config.networking.domain}";
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cert =
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mkIf (!cfg.no-tls && cfg.sops)
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"${config.security.acme.certs.${cfg.realm}.directory}/full.pem";
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pkey =
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mkIf (!cfg.no-tls && cfg.sops)
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"${config.security.acme.certs.${cfg.realm}.directory}/key.pem";
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extraConfig = ''
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# ban private IP ranges
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no-multicast-peers
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denied-peer-ip=0.0.0.0-0.255.255.255
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denied-peer-ip=10.0.0.0-10.255.255.255
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denied-peer-ip=100.64.0.0-100.127.255.255
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denied-peer-ip=127.0.0.0-127.255.255.255
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denied-peer-ip=169.254.0.0-169.254.255.255
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denied-peer-ip=172.16.0.0-172.31.255.255
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denied-peer-ip=192.0.0.0-192.0.0.255
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denied-peer-ip=192.0.2.0-192.0.2.255
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denied-peer-ip=192.88.99.0-192.88.99.255
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denied-peer-ip=192.168.0.0-192.168.255.255
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denied-peer-ip=198.18.0.0-198.19.255.255
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denied-peer-ip=198.51.100.0-198.51.100.255
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denied-peer-ip=203.0.113.0-203.0.113.255
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denied-peer-ip=240.0.0.0-255.255.255.255
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denied-peer-ip=::1
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denied-peer-ip=64:ff9b::-64:ff9b::ffff:ffff
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denied-peer-ip=::ffff:0.0.0.0-::ffff:255.255.255.255
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denied-peer-ip=100::-100::ffff:ffff:ffff:ffff
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denied-peer-ip=2001::-2001:1ff:ffff:ffff:ffff:ffff:ffff:ffff
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denied-peer-ip=2002::-2002:ffff:ffff:ffff:ffff:ffff:ffff:ffff
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denied-peer-ip=fc00::-fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
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denied-peer-ip=fe80::-febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff
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''
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+ optionalString cfg.debug ''
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# debugging
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syslog
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verbose
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'';
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};
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networking.firewall = mkIf cfg.openFirewall {
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allowedUDPPortRanges = [
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{
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from = cfg.min-port;
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to = cfg.max-port;
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}
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];
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allowedUDPPorts = [
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cfg.listening-port
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cfg.alt-listening-port
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]
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++ optionals (!cfg.no-tls) [
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cfg.tls-listening-port
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cfg.alt-tls-listening-port
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];
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allowedTCPPorts = [
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cfg.listening-port
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cfg.alt-listening-port
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]
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++ optionals (!cfg.no-tls) [
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cfg.tls-listening-port
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cfg.alt-tls-listening-port
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];
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};
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security.acme.certs = mkIf (!cfg.no-tls) {
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${cfg.realm} = {
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postRun = "systemctl restart coturn.service";
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group = "turnserver";
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};
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};
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sops = mkIf cfg.sops {
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secrets."coturn/static-auth-secret" = {
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owner = "turnserver";
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group = "turnserver";
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mode = "0400";
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};
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};
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};
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}
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