diff options
Diffstat (limited to 'modules/root')
| -rw-r--r-- | modules/root/default.nix | 1 | ||||
| -rw-r--r-- | modules/root/net-iface-labels.nix | 27 |
2 files changed, 28 insertions, 0 deletions
diff --git a/modules/root/default.nix b/modules/root/default.nix index 7f647b5..8072525 100644 --- a/modules/root/default.nix +++ b/modules/root/default.nix @@ -11,6 +11,7 @@ ./hosts.nix ./localization.nix ./nas.nix + ./net-iface-labels.nix ./nix.nix ./normaluser.nix ./pipewire.nix diff --git a/modules/root/net-iface-labels.nix b/modules/root/net-iface-labels.nix new file mode 100644 index 0000000..4949659 --- /dev/null +++ b/modules/root/net-iface-labels.nix @@ -0,0 +1,27 @@ +{ config, lib, ... }: let + validMac = str: builtins.match ''^[0-9a-fA-F]{2}(:[0-9a-fA-F]{2}){5}$'' str != null; + macAddressType = lib.types.str // { + check = validMac; + description = "a mac address (xx:xx:xx:xx:xx:xx)"; + }; +in { + options.networking.interfaceLabels = { + enable = lib.mkEnableOption "manually label network interfaces"; + interfaces = lib.mkOption { + type = lib.types.attrsOf macAddressType; + default = {}; + example = { + "lan0" = "00:11:22:33:44:55"; + "lan1" = "66:77:88:99:AA:BB"; + }; + description = "label network interfaces by their mac address"; + }; + }; + + config = lib.mkIf config.networking.interfaceLabels.enable { + networking.usePredictableInterfaceNames = false; + services.udev.extraRules = lib.concatStringsSep "\n" ( + lib.mapAttrsToList (name: mac: ''ACTION=="add", SUBSYSTEM=="net", ATTR{address}=="${mac}", NAME="${name}"'') config.networking.interfaceLabels.interfaces + ); + }; +} |