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nixos/steam: add localNetworkTransfers.openFirewall option

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Steam local network game transfers require TCP port 27040 to be open:
https://steamcommunity.com/groups/SteamClientBeta/discussions/0/3775742015034590856/#c3827537203130812127

They also require UDP port 27036 to allow discovering peers on the same network before a transfer on port 27040 can be initiated.

Co-authored-by: Kira Bruneau <kira.bruneau@pm.me>
This commit is contained in:
opl 2024-02-23 21:59:16 +01:00
parent 899fe5550b
commit 877179c89d
1 changed files with 17 additions and 1 deletions
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18
nixos/modules/programs/steam.nix
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@ -82,6 +82,14 @@ in {
'';
};
localNetworkGameTransfers.openFirewall = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Open ports in the firewall for Steam Local Network Game Transfers.
'';
};
gamescopeSession = mkOption {
description = mdDoc "Run a GameScope driven Steam session from your display-manager";
default = {};
@ -139,15 +147,23 @@ in {
] ++ lib.optional cfg.gamescopeSession.enable steam-gamescope;
networking.firewall = lib.mkMerge [
(mkIf (cfg.remotePlay.openFirewall || cfg.localNetworkGameTransfers.openFirewall) {
allowedUDPPorts = [ 27036 ]; # Peer discovery
})
(mkIf cfg.remotePlay.openFirewall {
allowedTCPPorts = [ 27036 ];
allowedUDPPortRanges = [ { from = 27031; to = 27036; } ];
allowedUDPPortRanges = [ { from = 27031; to = 27035; } ];
})
(mkIf cfg.dedicatedServer.openFirewall {
allowedTCPPorts = [ 27015 ]; # SRCDS Rcon port
allowedUDPPorts = [ 27015 ]; # Gameplay traffic
})
(mkIf cfg.localNetworkGameTransfers.openFirewall {
allowedTCPPorts = [ 27040 ]; # Data transfers
})
];
};