82 lines
2.8 KiB
Nix
82 lines
2.8 KiB
Nix
{ config, pkgs, ... }:
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let
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istalData = import ../../istal/data.secret.nix;
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canigouData = import ../data.secret.nix;
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port = canigouData.wireguard.port;
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update_ru_routes = pkgs.callPackage ./update_ru_routes.nix { };
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in
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{
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boot.kernel.sysctl."net.ipv4.ip_forward" = 1;
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boot.kernel.sysctl."net.ipv4.conf.all.forwarding" = 1;
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# enable NAT
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networking.nat = {
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enable = true;
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externalInterface = "eth0";
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internalInterfaces = [ "wg0" ];
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};
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networking.firewall = {
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allowedUDPPorts = [ port ];
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};
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environment.systemPackages = [ update_ru_routes ];
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networking.wg-quick.interfaces = {
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# "wg0" is the network interface name. You can name the interface arbitrarily.
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wg0 = {
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# Determines the IP address and subnet of the server's end of the tunnel interface.
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address = [ "10.20.30.1/32" ];
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# The port that WireGuard listens to. Must be accessible by the client.
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listenPort = port;
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# This allows the wireguard server to route your traffic to the internet and hence be like a VPN
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# For this to work you have to set the dnsserver IP of your router (or dnsserver of choice) in your clients
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postUp = ''
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gateway=`${pkgs.iproute}/bin/ip route | ${pkgs.gawk}/bin/awk '/default/ {print $3; exit}'`
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interface=`${pkgs.iproute}/bin/ip route | ${pkgs.gawk}/bin/awk '/default/ {print $5; exit}'`
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${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -o $interface -j MASQUERADE
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${pkgs.iproute}/bin/ip rule add from ${canigouData.addr} table main
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${pkgs.iproute}/bin/ip route add 193.0.6.150 via $gateway dev $interface
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'';
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preDown = ''
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gateway=`${pkgs.iproute}/bin/ip route | ${pkgs.gawk}/bin/awk '/default/ {print $3; exit}'`
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interface=`${pkgs.iproute}/bin/ip route | ${pkgs.gawk}/bin/awk '/default/ {print $5; exit}'`
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${pkgs.iptables}/bin/iptables -t nat -D POSTROUTING -o $interface -j MASQUERADE
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${pkgs.iproute}/bin/ip rule del from ${canigouData.addr} table main
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${pkgs.iproute}/bin/ip route del 193.0.6.150 via $gateway dev $interface
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'';
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# Path to the private key file.
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privateKeyFile = config.age.secrets.wireguard-canigou-private.path;
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peers = [
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# Istal
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{
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publicKey = istalData.wireguard.publicKey;
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allowedIPs = [ "10.20.30.2/32" "0.0.0.0/0" ];
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}
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# Home
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{
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publicKey = "Gg+p7tysAhu2X841weBiQrqoKXh6kvcmDiCY62rLwQg=";
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allowedIPs = [ "10.20.30.3/32" ];
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}
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# Asus
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{
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publicKey = "mzVH0N3q7UE/XjMwgRks+D8KFuIj91VkOK2ytgjsnkw=";
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allowedIPs = [ "10.20.30.4/32" ];
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}
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];
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};
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};
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age.secrets.wireguard-canigou-private = {
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file = ../../../../secrets/wireguard-canigou-private.age;
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mode = "0400";
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};
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}
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