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{ config, lib, pkgs, ... }:
let
cfg = config.programs.mosh;
in
{
options.programs.mosh = {
enable = lib.mkEnableOption "mosh";
openFirewall = lib.mkEnableOption "" // {
description = "Whether to automatically open the necessary ports in the firewall.";
default = true;
};
withUtempter = lib.mkEnableOption "" // {
description = ''
Whether to enable libutempter for mosh.
This is required so that mosh can write to /var/run/utmp (which can be queried with `who` to display currently connected user sessions).
Note, this will add a guid wrapper for the group utmp!
'';
default = true;
};
};
config = lib.mkIf cfg.enable {
environment.systemPackages = [ pkgs.mosh ];
networking.firewall.allowedUDPPortRanges = lib.optional cfg.openFirewall { from = 60000; to = 61000; };
security.wrappers = lib.mkIf cfg.withUtempter {
utempter = {
source = "${pkgs.libutempter}/lib/utempter/utempter";
owner = "root";
group = "utmp";
setuid = false;
setgid = true;
};
};
};
}
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