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|
args@{ hostname
, # hostname of the router
lanMac ? null
, # MAC address of the local area network interface
wanMac
, # MAC address of the upstream interface
lanIp
, # IP adderss/subnet
}:
{ config, pkgs, lib, ... }:
let
ifNotNull = maybeNull: attrSet: lib.attrsets.optionalAttrs (!builtins.isNull maybeNull) attrSet;
in
let
raas = pkgs.callPackage ./raas.nix { };
gatewayIpGroup = builtins.match "([0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+)/[0-9]+" args.lanIp;
gatewayAddress = builtins.elemAt gatewayIpGroup 0;
in
{
imports = [
./nftables.nix
];
services.nftables.internetHostOverride = gatewayAddress;
services.nftables.lanInterfaces = "lan";
environment.systemPackages = with pkgs; [ htop vim curl dig tcpdump cargo ];
networking.hostName = args.hostname;
networking.useDHCP = true;
system.stateVersion = "24.11";
systemd.network.netdevs."1-lanBridge" = {
netdevConfig = {
Kind = "bridge";
Name = "lan";
};
};
systemd.network.links = {
"1-lanIface" = ifNotNull lanMac {
matchConfig.PermanentMACAddress = args.lanMac;
linkConfig.Name = "lanEth";
};
"1-wanIface" = {
matchConfig.PermanentMACAddress = args.wanMac;
linkConfig.Name = "wan";
};
};
networking = { firewall.enable = false; };
hardware.bluetooth.enable = false;
boot.kernel.sysctl = {
# if you use ipv4, this is all you need
"net.ipv4.conf.all.forwarding" = true;
# If you want to use it for ipv6
"net.ipv6.conf.all.forwarding" = true;
# source: https://github.com/mdlayher/homelab/blob/master/nixos/routnerr-2/configuration.nix#L52
# By default, not automatically configure any IPv6 addresses.
"net.ipv6.conf.default.accept_ra" = 0;
"net.ipv6.conf.default.autoconf" = 0;
};
# when the above sysctl script is executed, wan is not renamed yet
systemd.services.sysctl_fixup_after_boot = {
enable = true;
bindsTo = [ "sys-subsystem-net-devices-wan.device" ];
before = [ "systemd-networkd.service" ];
wantedBy = [ "multi-user.target" ];
serviceConfig.ExecStart = ''
${pkgs.sysctl}/bin/sysctl net.ipv6.conf.wan.accept_ra=2 net.ipv6.conf.wan.autoconf=1 net.ipv6.conf.all.use_tempaddr=1
'';
};
networking.useNetworkd = true;
networking.wireguard.interfaces.staging = {
privateKeyFile = "/staging-wg-private-key";
ips = [ "10.64.9.184/32" "fc00:bbbb:bbbb:bb01::a40:9b8/128" ];
allowedIPsAsRoutes = true;
# postSetup could be used to dynamically fetch the IP of the staging API and set up the route to that IP through this interface too.
# postSetup = '''';
peers = [{
publicKey = "2KS+F8ZAOUSMwygl2CYqkqFhbi3L5u58b3kIpaylaEk=";
name = "se-sto-wg-001-staging";
endpoint = "85.203.53.81:51820";
allowedIPs = [
# api.stagemole.eu
"185.217.116.129/32"
# api-app.stagemole.eu
"185.217.116.132/32"
# api-partners.stagemole.eu
"185.217.116.131/32"
];
}];
};
systemd.network.enable = true;
systemd.network.networks.wan = {
name = "wan";
DHCP = "yes";
networkConfig = {
IPv6AcceptRA = true;
DHCP = "yes";
};
ipv6AcceptRAConfig = {
DHCPv6Client = "always";
UseDNS = true;
};
dhcpV4Config = {
Hostname = args.hostname;
UseDNS = true;
};
dhcpV6Config = { UseDNS = true; };
};
# obtain all leases
# if=lan; \
# link_id="$(ip --oneline link show dev "$if" | cut -f 1 -d:)"; \
# busctl -j get-property org.freedesktop.network1 \
# "/org/freedesktop/network1/link/${link_id}" \
# org.freedesktop.network1.DHCPServer \
# Leases
systemd.network.networks."lanEth" = ifNotNull lanMac {
matchConfig.Name = "lanEth";
networkConfig.Bridge = "lan";
linkConfig.RequiredForOnline = "enslaved";
};
systemd.network.networks.lan = {
name = "lan";
address = [ "192.168.105.1/24" ];
networkConfig = {
DHCPServer = true;
IPv6AcceptRA = false;
IPv6SendRA = true;
DHCPPrefixDelegation = true;
ConfigureWithoutCarrier = true;
};
dhcpServerConfig = {
ServerAddress = "192.168.105.1/24";
DNS = [ "1.1.1.1" "1.0.0.1" ];
PoolOffset = 128;
EmitDNS = true;
EmitNTP = true;
UplinkInterface = "wan";
};
dhcpServerStaticLeases = [
# {
# If we ever want a specific MAC to receive a static IP, add them here :)
# dhcpServerStaticLeaseConfig = {
# Address = "192.168.105.2";
# MACAddress = "78:45:58:C3:75:5E";
# };
# }
];
ipv6SendRAConfig = {
UplinkInterface = [ "wan" ];
EmitDNS = true;
};
dhcpPrefixDelegationConfig = {
UplinkInterface = "wan";
Announce = true;
Assign = true;
};
};
services.resolved.enable = true;
# disable logging forever
services.journald.extraConfig = ''
Storage=Volatile;
SystemMaxUse=50M
RuntimeMaxUse=50M
'';
services.openssh = {
enable = true;
ports = [ 22 2021 ];
settings.PermitRootLogin = "yes";
};
services.avahi = {
enable = true;
reflector = true;
allowInterfaces = [ "lan" ];
};
systemd.services.raas =
let
listenIpGroup = builtins.match "([0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+)/[0-9]+" args.lanIp;
listenAddress = builtins.elemAt listenIpGroup 0;
in
{
enable = true;
description = "Web service to apply blocking firewall rules";
bindsTo = [ "sys-subsystem-net-devices-lan.device" ];
after = [ "systemd-networkd.service" "network-online.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig.ExecStart = ''
${raas}/bin/raas ${listenAddress}:80
'';
};
services.shadowsocks = {
enable = true;
port = 443;
encryptionMethod = "aes-256-gcm";
password = "mullvad";
};
}
|
