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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.miniupnpd;
configFile = pkgs.writeText "miniupnpd.conf" ''
ext_ifname=${cfg.externalInterface}
enable_natpmp=${if cfg.natpmp then "yes" else "no"}
enable_upnp=${if cfg.upnp then "yes" else "no"}
${concatMapStrings (range: ''
listening_ip=${range}
'') cfg.internalIPs}
${cfg.appendConfig}
'';
in
{
options = {
services.miniupnpd = {
enable = mkEnableOption "MiniUPnP daemon";
externalInterface = mkOption {
type = types.str;
description = ''
Name of the external interface.
'';
};
internalIPs = mkOption {
type = types.listOf types.str;
example = [ "192.168.1.1/24" "enp1s0" ];
description = ''
The IP address ranges to listen on.
'';
};
natpmp = mkEnableOption "NAT-PMP support";
upnp = mkOption {
default = true;
type = types.bool;
description = ''
Whether to enable UPNP support.
'';
};
appendConfig = mkOption {
type = types.lines;
default = "";
description = ''
Configuration lines appended to the MiniUPnP config.
'';
};
};
};
config = mkIf cfg.enable {
# from miniupnpd/netfilter/iptables_init.sh
networking.firewall.extraCommands = ''
iptables -t nat -N MINIUPNPD
iptables -t nat -A PREROUTING -i ${cfg.externalInterface} -j MINIUPNPD
iptables -t mangle -N MINIUPNPD
iptables -t mangle -A PREROUTING -i ${cfg.externalInterface} -j MINIUPNPD
iptables -t filter -N MINIUPNPD
iptables -t filter -A FORWARD -i ${cfg.externalInterface} ! -o ${cfg.externalInterface} -j MINIUPNPD
iptables -t nat -N MINIUPNPD-PCP-PEER
iptables -t nat -A POSTROUTING -o ${cfg.externalInterface} -j MINIUPNPD-PCP-PEER
'';
# from miniupnpd/netfilter/iptables_removeall.sh
networking.firewall.extraStopCommands = ''
iptables -t nat -F MINIUPNPD
iptables -t nat -D PREROUTING -i ${cfg.externalInterface} -j MINIUPNPD
iptables -t nat -X MINIUPNPD
iptables -t mangle -F MINIUPNPD
iptables -t mangle -D PREROUTING -i ${cfg.externalInterface} -j MINIUPNPD
iptables -t mangle -X MINIUPNPD
iptables -t filter -F MINIUPNPD
iptables -t filter -D FORWARD -i ${cfg.externalInterface} ! -o ${cfg.externalInterface} -j MINIUPNPD
iptables -t filter -X MINIUPNPD
iptables -t nat -F MINIUPNPD-PCP-PEER
iptables -t nat -D POSTROUTING -o ${cfg.externalInterface} -j MINIUPNPD-PCP-PEER
iptables -t nat -X MINIUPNPD-PCP-PEER
'';
systemd.services.miniupnpd = {
description = "MiniUPnP daemon";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
ExecStart = "${pkgs.miniupnpd}/bin/miniupnpd -f ${configFile}";
PIDFile = "/var/run/miniupnpd.pid";
Type = "forking";
};
};
};
}
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