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nixfiles/pkgs/nixos-firewall-tool/nixos-firewall-tool.sh

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#!/usr/bin/env bash
set -euo pipefail
ip46tables() {
iptables -w "$@"
ip6tables -w "$@"
}
show_help() {
echo "nixos-firewall-tool"
echo ""
echo "Can temporarily manipulate the NixOS firewall"
echo ""
echo "Open TCP port:"
echo " nixos-firewall-tool open tcp 8888"
echo ""
echo "Show all firewall rules:"
echo " nixos-firewall-tool show"
echo ""
echo "Open UDP port:"
echo " nixos-firewall-tool open udp 51820"
echo ""
echo "Reset firewall configuration to system settings:"
echo " nixos-firewall-tool reset"
}
if [[ -z ${1+x} ]]; then
show_help
exit 1
fi
case $1 in
"open")
protocol="$2"
port="$3"
ip46tables -I nixos-fw -p "$protocol" --dport "$port" -j nixos-fw-accept
;;
"show")
ip46tables --numeric --list nixos-fw
;;
"reset")
systemctl restart firewall.service
;;
-h|--help|help)
show_help
exit 0
;;
*)
show_help
exit 1
;;
esac