{ lib, config, hostName, ... }: with builtins; let inherit (config) networking; netIface = "enp1s0"; netIPv4 = "80.67.180.129"; netIPv4Gateway = "80.67.180.134"; #netIPv6 = "2001:912:400:104::35"; #netIPv6Gateway = "2001:912:400:104::1"; lanIface = "enp2s0"; lanIPv4 = "192.168.1.214"; lanNet = "192.168.1.0/24"; lanIPv4Gateway = "192.168.1.1"; in { imports = [ networking/nftables.nix ]; _module.args.ipv4 = netIPv4; /* WARNING: using ipconfig (the ip= kernel parameter) IS NOT RELIABLE: a 91.216.110.35/32 becomes a 91.216.110.35/8 boot.kernelParams = map (ip: "ip=${ip.clientIP}:${ip.serverIP}:${ip.gatewayIP}:${ip.netmask}:${ip.hostname}:${ip.device}:${ip.autoconf}") [ { clientIP = netIPv4; serverIP = ""; gatewayIP = networking.defaultGateway.address; netmask = "255.255.255.255"; hostname = ""; device = networking.defaultGateway.interface; autoconf = "off"; } { clientIP = lanIPv4; serverIP = ""; gatewayIP = ""; netmask = "255.255.255.0"; hostname = ""; device = "${lanIface}"; autoconf = "off"; } ]; */ /* DIY network config, but a right one */ boot.initrd.preLVMCommands = '' set -x # IPv4 net ip link set ${netIface} up ip address add ${netIPv4}/32 dev ${netIface} ip route add ${netIPv4Gateway} dev ${netIface} ip route add default via ${netIPv4Gateway} dev ${netIface} # IPv4 lan ip link set ${lanIface} up ip address add ${lanIPv4}/32 dev ${lanIface} ip route add ${lanIPv4Gateway} dev ${lanIface} ip route add ${lanNet} dev ${lanIface} src ${lanIPv4} proto kernel # NOTE: ${lanIPv4}/24 would not work with initrd's ip, hence ${lanNet} # IPv6 net #ip -6 address add ''${netIPv6} dev ${netIface} #ip -6 route add ''${netIPv6Gateway} dev ${netIface} #ip -6 route add default via ''${netIPv6Gateway} dev ${netIface} ip -4 address ip -4 route #ip -6 address #ip -6 route set +x # Since boot.initrd.network's preLVMCommands won't set hasNetwork=1 # we have to run the postCommands ourselves. ${config.boot.initrd.network.postCommands} ''; # Workaround https://github.com/NixOS/nixpkgs/issues/56822 # TODO: the issue is now closed #boot.initrd.kernelModules = [ "ipv6" ]; # Useless without an out-of-band access, and unsecure # (though / may still be encrypted at this point). # boot.kernelParams = [ "boot.shell_on_fail" ]; # Disable IPv6 entirely until it's available boot.kernel.sysctl = { "net.ipv6.conf.${netIface}.disable_ipv6" = 1; }; services.knot.settingsFreeform.server.listen = [ "${netIPv4}@53" ]; networking = { hostName = hostName; domain = "sourcephile.fr"; useDHCP = false; defaultGateway = { address = netIPv4Gateway; interface = "${netIface}"; }; /* defaultGateway6 = { address = netIPv6Gateway; interface = "${netIface}"; }; */ #nameservers = [ ]; nftables.ruleset = lib.mkAfter '' table inet filter { chain input { iifname ${netIface} goto input-net iifname ${lanIface} goto input-lan } chain output { oifname ${netIface} jump output-net oifname ${netIface} log level warn prefix "output-net: " counter drop oifname ${lanIface} goto output-lan } } ''; interfaces.${netIface} = { useDHCP = false; ipv4.addresses = [{ address = netIPv4; prefixLength = 32; }]; ipv4.routes = [{ address = networking.defaultGateway.address; prefixLength = 32; }]; /* ipv6.addresses = [ { address = netIPv6; prefixLength = 64; } { address = "fe80::1"; prefixLength = 10; } ]; ipv6.routes = [ { address = networking.defaultGateway6.address; prefixLength = 64; } ]; */ }; interfaces.${lanIface} = { useDHCP = false; ipv4.addresses = [{ address = lanIPv4; prefixLength = 24; }]; /* # FIXME: remove this /1 hack when the host will be racked at PTT ipv4.routes = [ { address = "0.0.0.0"; prefixLength = 1; via = "192.168.1.1"; } { address = "128.0.0.0"; prefixLength = 1; via = "192.168.1.1"; } ]; */ /* ipv6.addresses = [ { address = "fe80::1"; prefixLength = 10; } ]; ipv6.routes = [ ]; */ }; interfaces.enp3s0 = { useDHCP = false; }; }; services.vnstat.enable = true; }