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|
{
config,
lib,
pkgs,
this,
...
}:
with lib;
let
cfg = config.nixfiles.modules.common.networking;
in
{
options.nixfiles.modules.common.networking.onlyDefault = mkEnableOption "custom networking settings";
config = mkIf (!cfg.onlyDefault) {
ark.directories =
with config.networking;
optional networkmanager.enable "/etc/NetworkManager/system-connections"
++ optional wireless.iwd.enable "/var/lib/iwd";
networking = mkMerge [
{
domain = my.domain.shire;
hostName = this.hostname;
hostId = substring 0 8 (builtins.hashString "md5" this.hostname);
# Remove default hostname mappings. This is required at least by the
# current implementation of the monitoring module.
hosts = {
"127.0.0.2" = mkForce [ ];
"::1" = mkForce [ ];
};
# There's no way[1] to configure DNS server priority in
# systemd-resolved. The only solution for dealing with a broken VPN
# connection is to delete /etc/systemd/resolved.conf and restart the
# systemd-resolved service. Otherwise I'll just end up with a random
# server from the list most of the time because systemd-resolved
# "conveniently" will manage server priority for me...
#
# [1]: https://askubuntu.com/questions/1116732/how-do-i-list-dns-server-order-in-systemd-resolve
# [2]: https://github.com/systemd/systemd/issues/6076
nameservers = with my.configurations.manwe.wireguard; [
ipv6.address
ipv4.address
];
useDHCP = false;
nftables.enable = true;
firewall = {
enable = true;
rejectPackets = false;
allowPing = true;
pingLimit = "1/minute burst 5 packets";
logRefusedConnections = false;
logRefusedPackets = false;
logRefusedUnicastsOnly = false;
logReversePathDrops = false;
};
}
(
let
interface = "eth0"; # This assumes `usePredictableInterfaceNames` is false.
in
mkIf (hasAttr "ipv4" this && hasAttr "ipv6" this) {
usePredictableInterfaceNames = false; # NOTE This can break something!
interfaces.${interface} = {
ipv4.addresses =
with this.ipv4;
optional (isString address && isInt prefixLength) { inherit address prefixLength; };
ipv6.addresses =
with this.ipv6;
optional (isString address && isInt prefixLength) { inherit address prefixLength; };
};
defaultGateway =
with this.ipv4;
mkIf (isString gatewayAddress) {
inherit interface;
address = gatewayAddress;
};
defaultGateway6 =
with this.ipv6;
mkIf (isString gatewayAddress) {
inherit interface;
address = gatewayAddress;
};
}
)
(mkIf this.isHeadful {
interfaces.eth0.useDHCP = mkDefault true;
networkmanager = {
enable = mkDefault true;
unmanaged = [
"bridge"
"ethernet"
"loopback"
"wireguard"
];
plugins = mkForce [ ];
wifi.backend = "iwd";
};
wireless = {
enable = false;
iwd.enable = mkDefault true;
userControlled.enable = true;
allowAuxiliaryImperativeNetworks = true;
};
})
];
services.resolved = {
llmnr = "false";
dnsovertls = "opportunistic";
dnssec = "allow-downgrade";
fallbackDns = dns.mkDoT dns.const.quad9.ecs;
};
environment = {
shellAliases = listToAttrs (
map ({ name, value }: nameValuePair name "${pkgs.iproute2}/bin/${value}") [
{
name = "bridge";
value = "bridge -color=always";
}
{
name = "ip";
value = "ip -color=always";
}
{
name = "tc";
value = "tc -color=always";
}
]
);
systemPackages = with pkgs; [
ethtool
myip
nethogs
];
};
};
}
|
