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2b605e96c2
With systemd version 243 network units with empty match block will generate warnigs. The reasoning seems to be that the intended behaviour is hard to infere. Being explicit about really meaning any interface is the reasonable thing here. We want to get rid of this mechanism in the long run but as long as we do not have a replacement we should stick with it and keep it in reasonable good shape.
244 lines
9.6 KiB
Nix
244 lines
9.6 KiB
Nix
{ config, lib, utils, ... }:
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with utils;
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with lib;
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let
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cfg = config.networking;
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interfaces = attrValues cfg.interfaces;
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interfaceIps = i:
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i.ipv4.addresses
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++ optionals cfg.enableIPv6 i.ipv6.addresses;
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dhcpStr = useDHCP: if useDHCP == true || useDHCP == null then "both" else "no";
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slaves =
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concatLists (map (bond: bond.interfaces) (attrValues cfg.bonds))
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++ concatLists (map (bridge: bridge.interfaces) (attrValues cfg.bridges))
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++ map (sit: sit.dev) (attrValues cfg.sits)
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++ map (vlan: vlan.interface) (attrValues cfg.vlans);
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in
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{
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config = mkIf cfg.useNetworkd {
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assertions = [ {
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assertion = cfg.defaultGatewayWindowSize == null;
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message = "networking.defaultGatewayWindowSize is not supported by networkd.";
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} {
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assertion = cfg.vswitches == {};
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message = "networking.vswichtes are not supported by networkd.";
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} {
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assertion = cfg.defaultGateway == null || cfg.defaultGateway.interface == null;
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message = "networking.defaultGateway.interface is not supported by networkd.";
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} {
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assertion = cfg.defaultGateway6 == null || cfg.defaultGateway6.interface == null;
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message = "networking.defaultGateway6.interface is not supported by networkd.";
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} ] ++ flip mapAttrsToList cfg.bridges (n: { rstp, ... }: {
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assertion = !rstp;
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message = "networking.bridges.${n}.rstp is not supported by networkd.";
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});
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networking.dhcpcd.enable = mkDefault false;
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systemd.services.network-local-commands = {
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after = [ "systemd-networkd.service" ];
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bindsTo = [ "systemd-networkd.service" ];
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};
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systemd.network =
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let
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domains = cfg.search ++ (optional (cfg.domain != null) cfg.domain);
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genericNetwork = override:
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let gateway = optional (cfg.defaultGateway != null) cfg.defaultGateway.address
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++ optional (cfg.defaultGateway6 != null) cfg.defaultGateway6.address;
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in {
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DHCP = override (dhcpStr cfg.useDHCP);
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} // optionalAttrs (gateway != [ ]) {
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routes = override [
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{
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routeConfig = {
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Gateway = gateway;
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GatewayOnLink = false;
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};
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}
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];
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} // optionalAttrs (domains != [ ]) {
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domains = override domains;
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};
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in mkMerge [ {
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enable = true;
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networks."99-main" = (genericNetwork mkDefault) // {
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# We keep the "broken" behaviour of applying this to all interfaces.
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# In general we want to get rid of this workaround but there hasn't
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# been any work on that.
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# See the following issues for details:
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# - https://github.com/NixOS/nixpkgs/issues/18962
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# - https://github.com/NixOS/nixpkgs/issues/61629
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matchConfig = mkDefault { Name = "*"; };
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};
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}
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(mkMerge (forEach interfaces (i: {
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netdevs = mkIf i.virtual ({
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"40-${i.name}" = {
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netdevConfig = {
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Name = i.name;
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Kind = i.virtualType;
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};
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"${i.virtualType}Config" = optionalAttrs (i.virtualOwner != null) {
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User = i.virtualOwner;
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};
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};
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});
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networks."40-${i.name}" = mkMerge [ (genericNetwork mkDefault) {
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name = mkDefault i.name;
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DHCP = mkForce (dhcpStr
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(if i.useDHCP != null then i.useDHCP else cfg.useDHCP && interfaceIps i == [ ]));
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address = forEach (interfaceIps i)
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(ip: "${ip.address}/${toString ip.prefixLength}");
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networkConfig.IPv6PrivacyExtensions = "kernel";
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} ];
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})))
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(mkMerge (flip mapAttrsToList cfg.bridges (name: bridge: {
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netdevs."40-${name}" = {
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netdevConfig = {
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Name = name;
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Kind = "bridge";
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};
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};
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networks = listToAttrs (forEach bridge.interfaces (bi:
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nameValuePair "40-${bi}" (mkMerge [ (genericNetwork (mkOverride 999)) {
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DHCP = mkOverride 0 (dhcpStr false);
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networkConfig.Bridge = name;
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} ])));
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})))
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(mkMerge (flip mapAttrsToList cfg.bonds (name: bond: {
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netdevs."40-${name}" = {
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netdevConfig = {
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Name = name;
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Kind = "bond";
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};
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bondConfig = let
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# manual mapping as of 2017-02-03
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# man 5 systemd.netdev [BOND]
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# to https://www.kernel.org/doc/Documentation/networking/bonding.txt
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# driver options.
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driverOptionMapping = let
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trans = f: optName: { valTransform = f; optNames = [optName]; };
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simp = trans id;
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ms = trans (v: v + "ms");
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in {
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Mode = simp "mode";
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TransmitHashPolicy = simp "xmit_hash_policy";
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LACPTransmitRate = simp "lacp_rate";
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MIIMonitorSec = ms "miimon";
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UpDelaySec = ms "updelay";
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DownDelaySec = ms "downdelay";
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LearnPacketIntervalSec = simp "lp_interval";
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AdSelect = simp "ad_select";
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FailOverMACPolicy = simp "fail_over_mac";
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ARPValidate = simp "arp_validate";
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# apparently in ms for this value?! Upstream bug?
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ARPIntervalSec = simp "arp_interval";
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ARPIPTargets = simp "arp_ip_target";
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ARPAllTargets = simp "arp_all_targets";
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PrimaryReselectPolicy = simp "primary_reselect";
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ResendIGMP = simp "resend_igmp";
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PacketsPerSlave = simp "packets_per_slave";
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GratuitousARP = { valTransform = id;
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optNames = [ "num_grat_arp" "num_unsol_na" ]; };
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AllSlavesActive = simp "all_slaves_active";
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MinLinks = simp "min_links";
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};
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do = bond.driverOptions;
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assertNoUnknownOption = let
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knownOptions = flatten (mapAttrsToList (_: kOpts: kOpts.optNames)
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driverOptionMapping);
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# options that apparently don’t exist in the networkd config
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unknownOptions = [ "primary" ];
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assertTrace = bool: msg: if bool then true else builtins.trace msg false;
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in assert all (driverOpt: assertTrace
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(elem driverOpt (knownOptions ++ unknownOptions))
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"The bond.driverOption `${driverOpt}` cannot be mapped to the list of known networkd bond options. Please add it to the mapping above the assert or to `unknownOptions` should it not exist in networkd.")
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(mapAttrsToList (k: _: k) do); "";
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# get those driverOptions that have been set
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filterSystemdOptions = filterAttrs (sysDOpt: kOpts:
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any (kOpt: do ? ${kOpt}) kOpts.optNames);
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# build final set of systemd options to bond values
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buildOptionSet = mapAttrs (_: kOpts: with kOpts;
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# we simply take the first set kernel bond option
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# (one option has multiple names, which is silly)
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head (map (optN: valTransform (do.${optN}))
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# only map those that exist
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(filter (o: do ? ${o}) optNames)));
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in seq assertNoUnknownOption
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(buildOptionSet (filterSystemdOptions driverOptionMapping));
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};
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networks = listToAttrs (forEach bond.interfaces (bi:
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nameValuePair "40-${bi}" (mkMerge [ (genericNetwork (mkOverride 999)) {
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DHCP = mkOverride 0 (dhcpStr false);
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networkConfig.Bond = name;
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} ])));
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})))
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(mkMerge (flip mapAttrsToList cfg.macvlans (name: macvlan: {
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netdevs."40-${name}" = {
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netdevConfig = {
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Name = name;
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Kind = "macvlan";
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};
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macvlanConfig = optionalAttrs (macvlan.mode != null) { Mode = macvlan.mode; };
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};
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networks."40-${macvlan.interface}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
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macvlan = [ name ];
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} ]);
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})))
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(mkMerge (flip mapAttrsToList cfg.sits (name: sit: {
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netdevs."40-${name}" = {
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netdevConfig = {
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Name = name;
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Kind = "sit";
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};
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tunnelConfig =
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(optionalAttrs (sit.remote != null) {
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Remote = sit.remote;
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}) // (optionalAttrs (sit.local != null) {
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Local = sit.local;
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}) // (optionalAttrs (sit.ttl != null) {
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TTL = sit.ttl;
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});
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};
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networks = mkIf (sit.dev != null) {
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"40-${sit.dev}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
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tunnel = [ name ];
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} ]);
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};
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})))
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(mkMerge (flip mapAttrsToList cfg.vlans (name: vlan: {
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netdevs."40-${name}" = {
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netdevConfig = {
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Name = name;
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Kind = "vlan";
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};
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vlanConfig.Id = vlan.id;
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};
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networks."40-${vlan.interface}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
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vlan = [ name ];
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} ]);
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})))
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];
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# We need to prefill the slaved devices with networking options
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# This forces the network interface creator to initialize slaves.
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networking.interfaces = listToAttrs (map (i: nameValuePair i { }) slaves);
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};
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}
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