60 lines
2.4 KiB
Nix
60 lines
2.4 KiB
Nix
{
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config,
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inputs,
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pkgs,
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...
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}:
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let
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jupiterConfig = inputs.self.nixosConfigurations.jupiter.config;
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publicInterface = "ens3";
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wireguardPort = 51820;
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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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sops.secrets."wireguard" = { };
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networking = {
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firewall = {
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allowedTCPPorts = jupiterConfig.networking.firewall.allowedTCPPorts;
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allowedUDPPorts = [ wireguardPort ] ++ jupiterConfig.networking.firewall.allowedUDPPorts;
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};
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wireguard.interfaces.wg0 =
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let
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iptables = "${pkgs.iptables}/bin/iptables";
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in
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rec {
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ips = [ "10.0.0.1/24" ];
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listenPort = wireguardPort;
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privateKeyFile = config.sops.secrets."wireguard".path;
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postSetup = [
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"${iptables} -t nat -A PREROUTING -i ${publicInterface} -p tcp --dport ${builtins.toString (builtins.elemAt config.services.openssh.ports 0)} -j RETURN"
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"${iptables} -t nat -A PREROUTING -i ${publicInterface} -p udp --dport ${builtins.toString listenPort} -j RETURN"
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"${iptables} -t nat -A PREROUTING -i ${publicInterface} -j DNAT --to-destination 10.0.0.2"
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"${iptables} -t nat -A POSTROUTING -d 10.0.0.2 -p tcp --dport ${builtins.toString (builtins.elemAt config.services.openssh.ports 0)} -j RETURN"
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"${iptables} -t nat -A POSTROUTING -d 10.0.0.2 -p udp --dport ${builtins.toString listenPort} -j RETURN"
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"${iptables} -t nat -A POSTROUTING -d 10.0.0.2 -j SNAT --to-source 10.0.0.1"
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];
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postShutdown = [
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"${iptables} -t nat -D PREROUTING -i ${publicInterface} -p tcp --dport ${builtins.toString (builtins.elemAt config.services.openssh.ports 0)} -j RETURN"
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"${iptables} -t nat -D PREROUTING -i ${publicInterface} -p udp --dport ${builtins.toString listenPort} -j RETURN"
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"${iptables} -t nat -D PREROUTING -i ${publicInterface} -j DNAT --to-destination 10.0.0.2"
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"${iptables} -t nat -D POSTROUTING -d 10.0.0.2 -p tcp --dport ${builtins.toString (builtins.elemAt config.services.openssh.ports 0)} -j RETURN"
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"${iptables} -t nat -D POSTROUTING -d 10.0.0.2 -p udp --dport ${builtins.toString listenPort} -j RETURN"
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"${iptables} -t nat -D POSTROUTING -d 10.0.0.2 -j SNAT --to-source 10.0.0.1"
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];
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peers = [
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{
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name = "jupiter";
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allowedIPs = [ "10.0.0.2/32" ];
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publicKey = "Lvx7bpyqI8rUrxYVDolz7T+EPuRWDohJAAToq7kH7EU=";
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}
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];
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};
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};
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}
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