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|
{
config,
hosts,
pkgs,
lib,
...
}: let
wg-mode = pkgs.writeShellScriptBin "wg-mode" ''
PEER_KEY="${hosts.ganymede.wg_pubkey}"
IFACE="wg0"
case "$1" in
full)
sudo bash -c "
wg set '$IFACE' peer '$PEER_KEY' allowed-ips 0.0.0.0/0,::/0
ip route add default dev '$IFACE' metric 100
"
echo "Switched $IFACE to Full Tunnel"
;;
split)
sudo bash -c "
ip route del default dev '$IFACE' metric 100
wg set '$IFACE' peer '$PEER_KEY' allowed-ips 10.0.0.0/24
"
echo "Switched $IFACE to Split Tunnel"
;;
*)
echo "Usage: wg-mode [full|split]"
exit 1
;;
esac
'';
in {
environment.systemPackages = [
pkgs.wireguard-tools
wg-mode
];
systemd.services.udp2raw-client = {
description = "udp2raw WireGuard transport";
wantedBy = ["multi-user.target"];
after = ["network-online.target"];
wants = ["network-online.target"];
script = ''
REMOTE_IP=$(${pkgs.dnsutils}/bin/dig +short williamsfam.us.com | ${pkgs.gawk}/bin/awk 'NR==1')
if [[ -z "$REMOTE_IP" ]]; then
echo "Failed to resolve DNS for configured domain" >&2
exit 1
fi
${lib.getExe pkgs.udp2raw} \
-c \
-l 127.0.0.1:51820 \
-r "$REMOTE_IP":51843 \
--raw-mode faketcp \
--key "shared-secret" \
--auto-rule
'';
serviceConfig.Restart = "on-failure";
};
systemd.network.netdevs."10-wg" = {
netdevConfig = {
Kind = "wireguard";
Name = "wg0";
MTUBytes = "1200";
};
wireguardConfig = {
PrivateKeyFile = config.collinux.secrets."wireguard-privkey".path;
ListenPort = 9918;
};
wireguardPeers = [
{
PublicKey = hosts.ganymede.wg_pubkey;
AllowedIPs = ["10.100.0.0/24"];
Endpoint = "127.0.0.1:51820";
}
];
};
systemd.network.networks."wg0" = {
matchConfig.Name = "wg0";
address = ["${hosts.mercury.wg_ip}/24"];
DHCP = "no";
dns = [hosts.ganymede.wg_ip];
domains = ["~ganymede"];
networkConfig.IPv6AcceptRA = false;
extraConfig = ''
DNSOverTLS=no
DNSSEC=no
'';
};
}
|
