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{ config, lib, pkgs, utils, ... }:
with utils;
with lib;
let
cfg = config.networking;
interfaces = attrValues cfg.interfaces;
interfaceIps = i:
i.ip4 ++ optionals cfg.enableIPv6 i.ip6
++ optional (i.ipAddress != null) {
address = i.ipAddress;
prefixLength = i.prefixLength;
} ++ optional (cfg.enableIPv6 && i.ipv6Address != null) {
address = i.ipv6Address;
prefixLength = i.ipv6PrefixLength;
};
dhcpStr = useDHCP: if useDHCP == true || useDHCP == null then "both" else "none";
slaves =
concatLists (map (bond: bond.interfaces) (attrValues cfg.bonds))
++ concatLists (map (bridge: bridge.interfaces) (attrValues cfg.bridges))
++ map (sit: sit.dev) (attrValues cfg.sits)
++ map (vlan: vlan.interface) (attrValues cfg.vlans);
in
{
config = mkIf cfg.useNetworkd {
assertions = [ {
assertion = cfg.defaultGatewayWindowSize == null;
message = "networking.defaultGatewayWindowSize is not supported by networkd.";
} {
assertion = cfg.vswitches == {};
message = "networking.vswichtes are not supported by networkd.";
} {
assertion = cfg.defaultGateway == null || cfg.defaultGateway.interface == null;
message = "networking.defaultGateway.interface is not supported by networkd.";
} {
assertion = cfg.defaultGateway6 == null || cfg.defaultGateway6.interface == null;
message = "networking.defaultGateway6.interface is not supported by networkd.";
} ] ++ flip mapAttrsToList cfg.bridges (n: { rstp, ... }: {
assertion = !rstp;
message = "networking.bridges.${n}.rstp is not supported by networkd.";
});
networking.dhcpcd.enable = mkDefault false;
systemd.services.network-local-commands = {
after = [ "systemd-networkd.service" ];
bindsTo = [ "systemd-networkd.service" ];
};
systemd.network =
let
domains = cfg.search ++ (optional (cfg.domain != null) cfg.domain);
genericNetwork = override: {
DHCP = override (dhcpStr cfg.useDHCP);
} // optionalAttrs (cfg.defaultGateway != null) {
gateway = override [ cfg.defaultGateway ];
} // optionalAttrs (cfg.defaultGateway6 != null) {
gateway = override [ cfg.defaultGateway6 ];
} // optionalAttrs (domains != [ ]) {
domains = override domains;
};
in mkMerge [ {
enable = true;
networks."99-main" = genericNetwork mkDefault;
}
(mkMerge (flip map interfaces (i: {
netdevs = mkIf i.virtual (
let
devType = if i.virtualType != null then i.virtualType
else (if hasPrefix "tun" i.name then "tun" else "tap");
in {
"40-${i.name}" = {
netdevConfig = {
Name = i.name;
Kind = devType;
};
"${devType}Config" = optionalAttrs (i.virtualOwner != null) {
User = i.virtualOwner;
};
};
});
networks."40-${i.name}" = mkMerge [ (genericNetwork mkDefault) {
name = mkDefault i.name;
DHCP = mkForce (dhcpStr
(if i.useDHCP != null then i.useDHCP else cfg.useDHCP && interfaceIps i == [ ]));
address = flip map (interfaceIps i)
(ip: "${ip.address}/${toString ip.prefixLength}");
} ];
})))
(mkMerge (flip mapAttrsToList cfg.bridges (name: bridge: {
netdevs."40-${name}" = {
netdevConfig = {
Name = name;
Kind = "bridge";
};
};
networks = listToAttrs (flip map bridge.interfaces (bi:
nameValuePair "40-${bi}" (mkMerge [ (genericNetwork (mkOverride 999)) {
DHCP = mkOverride 0 (dhcpStr false);
networkConfig.Bridge = name;
} ])));
})))
(mkMerge (flip mapAttrsToList cfg.bonds (name: bond: {
netdevs."40-${name}" = {
netdevConfig = {
Name = name;
Kind = "bond";
};
bondConfig =
(optionalAttrs (bond.lacp_rate != null) {
LACPTransmitRate = bond.lacp_rate;
}) // (optionalAttrs (bond.miimon != null) {
MIIMonitorSec = bond.miimon;
}) // (optionalAttrs (bond.mode != null) {
Mode = bond.mode;
}) // (optionalAttrs (bond.xmit_hash_policy != null) {
TransmitHashPolicy = bond.xmit_hash_policy;
});
};
networks = listToAttrs (flip map bond.interfaces (bi:
nameValuePair "40-${bi}" (mkMerge [ (genericNetwork (mkOverride 999)) {
DHCP = mkOverride 0 (dhcpStr false);
networkConfig.Bond = name;
} ])));
})))
(mkMerge (flip mapAttrsToList cfg.macvlans (name: macvlan: {
netdevs."40-${name}" = {
netdevConfig = {
Name = name;
Kind = "macvlan";
};
macvlanConfig = optionalAttrs (macvlan.mode != null) { Mode = macvlan.mode; };
};
networks."40-${macvlan.interface}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
macvlan = [ name ];
} ]);
})))
(mkMerge (flip mapAttrsToList cfg.sits (name: sit: {
netdevs."40-${name}" = {
netdevConfig = {
Name = name;
Kind = "sit";
};
tunnelConfig =
(optionalAttrs (sit.remote != null) {
Remote = sit.remote;
}) // (optionalAttrs (sit.local != null) {
Local = sit.local;
}) // (optionalAttrs (sit.ttl != null) {
TTL = sit.ttl;
});
};
networks = mkIf (sit.dev != null) {
"40-${sit.dev}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
tunnel = [ name ];
} ]);
};
})))
(mkMerge (flip mapAttrsToList cfg.vlans (name: vlan: {
netdevs."40-${name}" = {
netdevConfig = {
Name = name;
Kind = "vlan";
};
vlanConfig.Id = vlan.id;
};
networks."40-${vlan.interface}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
vlan = [ name ];
} ]);
})))
];
# We need to prefill the slaved devices with networking options
# This forces the network interface creator to initialize slaves.
networking.interfaces = listToAttrs (map (i: nameValuePair i { }) slaves);
};
}
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