From 5074a79937aba5e13e7c7d722f09a8e8de65b3d7 Mon Sep 17 00:00:00 2001 From: Profpatsch Date: Mon, 4 Jul 2016 00:32:04 +0200 Subject: nixos/pulseaudio: tcp streaming & zeroconf Adds options for tcp streaming and avahi zeroconf support (so that the server can be easily found by clients). There is also an option to allow anonymous clients to stream to the server (by default pulseaudio uses a cookie mechanism, see manpage). --- nixos/modules/config/pulseaudio.nix | 89 ++++++++++++++++++++++++++++++++----- 1 file changed, 79 insertions(+), 10 deletions(-) (limited to 'nixos/modules/config/pulseaudio.nix') diff --git a/nixos/modules/config/pulseaudio.nix b/nixos/modules/config/pulseaudio.nix index 7acf050a9a40..2939e67566c8 100644 --- a/nixos/modules/config/pulseaudio.nix +++ b/nixos/modules/config/pulseaudio.nix @@ -9,11 +9,36 @@ let systemWide = cfg.enable && cfg.systemWide; nonSystemWide = cfg.enable && !cfg.systemWide; + hasZeroconf = let z = cfg.zeroconf; in z.publish.enable || z.discovery.enable; + + overriddenPackage = cfg.package.override + (optionalAttrs hasZeroconf { zeroconfSupport = true; }); + binary = "${getBin overriddenPackage}/bin/pulseaudio"; + binaryNoDaemon = "${binary} --daemonize=no"; # Forces 32bit pulseaudio and alsaPlugins to be built/supported for apps # using 32bit alsa on 64bit linux. enable32BitAlsaPlugins = cfg.support32Bit && stdenv.isx86_64 && (pkgs_i686.alsaLib != null && pkgs_i686.libpulseaudio != null); + + myConfigFile = + let + addModuleIf = cond: mod: optionalString cond "load-module ${mod}"; + allAnon = optional cfg.tcp.anonymousClients.allowAll "auth-anonymous=1"; + ipAnon = let a = cfg.tcp.anonymousClients.allowedIpRanges; + in optional (a != []) ''auth-ip-acl=${concatStringsSep ";" a}''; + in writeTextFile { + name = "default.pa"; + text = '' + .include ${cfg.configFile} + ${addModuleIf cfg.zeroconf.publish.enable "module-zeroconf-publish"} + ${addModuleIf cfg.zeroconf.discovery.enable "module-zeroconf-discover"} + ${addModuleIf cfg.tcp.enable (concatStringsSep " " + ([ "load-module module-native-protocol-tcp" ] ++ allAnon ++ ipAnon))} + ${cfg.extraConfig} + ''; + }; + ids = config.ids; uid = ids.uids.pulseaudio; @@ -26,7 +51,7 @@ let # are built with PulseAudio support (like KDE). clientConf = writeText "client.conf" '' autospawn=${if nonSystemWide then "yes" else "no"} - ${optionalString nonSystemWide "daemon-binary=${cfg.package.out}/bin/pulseaudio"} + ${optionalString nonSystemWide "daemon-binary=${binary}"} ${cfg.extraClientConf} ''; @@ -44,7 +69,7 @@ let hint.description "Default Audio Device (via PulseAudio)" } ctl_type.pulse { - libs.native = ${alsaPlugins}/lib/alsa-lib/libasound_module_ctl_pulse.so ; + libs.native = ${pkgs.alsaPlugins}/lib/alsa-lib/libasound_module_ctl_pulse.so ; ${lib.optionalString enable32BitAlsaPlugins "libs.32Bit = ${pkgs_i686.alsaPlugins}/lib/alsa-lib/libasound_module_ctl_pulse.so ;"} } @@ -89,16 +114,25 @@ in { }; configFile = mkOption { - type = types.path; + type = types.nullOr types.path; description = '' - The path to the configuration the PulseAudio server + The path to the default configuration options the PulseAudio server should use. By default, the "default.pa" configuration from the PulseAudio distribution is used. ''; }; + extraConfig = mkOption { + type = types.lines; + default = ""; + description = '' + Literal string to append to configFile + and the config file generated by the pulseaudio module. + ''; + }; + extraClientConf = mkOption { - type = types.str; + type = types.lines; default = ""; description = '' Extra configuration appended to pulse/client.conf file. @@ -127,6 +161,31 @@ in { ''; }; }; + + zeroconf = { + discovery.enable = + mkEnableOption "discovery of pulseaudio sinks in the local network"; + publish.enable = + mkEnableOption "publishing the pulseaudio sink in the local network"; + }; + + # TODO: enable by default? + tcp = { + enable = mkEnableOption "tcp streaming support"; + + anonymousClients = { + allowAll = mkEnableOption "all anonymous clients to stream to the server"; + allowedIpRanges = mkOption { + type = types.listOf types.str; + default = []; + example = literalExample ''[ "127.0.0.1" "192.168.1.0/24" ]''; + description = '' + A list of IP subnets that are allowed to stream to the server. + ''; + }; + }; + }; + }; }; @@ -139,11 +198,11 @@ in { source = clientConf; }; - hardware.pulseaudio.configFile = mkDefault "${getBin cfg.package}/etc/pulse/default.pa"; + hardware.pulseaudio.configFile = mkDefault "${getBin overriddenPackage}/etc/pulse/default.pa"; } (mkIf cfg.enable { - environment.systemPackages = [ cfg.package ]; + environment.systemPackages = [ overriddenPackage ]; environment.etc = singleton { target = "asound.conf"; @@ -152,12 +211,21 @@ in { # Allow PulseAudio to get realtime priority using rtkit. security.rtkit.enable = true; + + }) + + (mkIf hasZeroconf { + services.avahi.enable = true; + }) + (mkIf cfg.zeroconf.publish.enable { + services.avahi.publish.enable = true; + services.avahi.publish.userServices = true; }) (mkIf nonSystemWide { environment.etc = singleton { target = "pulse/default.pa"; - source = cfg.configFile; + source = myConfigFile; }; systemd.user = { @@ -167,10 +235,11 @@ in { wantedBy = [ "default.target" ]; serviceConfig = { Type = "notify"; - ExecStart = "${getBin cfg.package}/bin/pulseaudio --daemonize=no"; + ExecStart = binaryNoDaemon; Restart = "on-failure"; }; environment = { DISPLAY = ":${toString config.services.xserver.display}"; }; + restartIfChanged = true; }; sockets.pulseaudio = { @@ -205,7 +274,7 @@ in { environment.PULSE_RUNTIME_PATH = stateDir; serviceConfig = { Type = "notify"; - ExecStart = "${getBin cfg.package}/bin/pulseaudio --daemonize=no --log-level=${cfg.daemon.logLevel} --system -n --file=${cfg.configFile}"; + ExecStart = "${binaryNoDaemon} --log-level=${cfg.daemon.logLevel} --system -n --file=${myConfigFile}"; Restart = "on-failure"; }; }; -- cgit 1.4.1