Add an IPv4 helper lib (parse, netmask, cidr, overlap) and derive router.lans.<name>.ipv4.subnet from address and prefixLength instead of requiring it twice. New assertions reject invalid addresses, DHCP pools that are reversed, outside the subnet or contain the router address, and overlapping LANs. Add `lib` unit tests and an `assertions` check that evaluates broken configs and compares the exact error messages. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
47 lines
1.4 KiB
Nix
47 lines
1.4 KiB
Nix
{
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description = "nixos-router: a NixOS-based distribution for routers/firewalls";
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inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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outputs = { self, nixpkgs }:
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let
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systems = [ "x86_64-linux" "aarch64-linux" ];
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forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f nixpkgs.legacyPackages.${system});
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in
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{
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nixosModules = {
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router = ./modules/router;
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default = self.nixosModules.router;
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};
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# VM tests need KVM; only wired up for x86_64 until aarch64 CI exists.
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checks.x86_64-linux = import ./tests {
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inherit self;
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pkgs = nixpkgs.legacyPackages.x86_64-linux;
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};
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# `nix run .#lab`: boot the basic test topology in tmux, one console pane
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# per VM plus the interactive test-driver REPL.
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apps.x86_64-linux.lab =
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let
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pkgs = nixpkgs.legacyPackages.x86_64-linux;
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test = self.checks.x86_64-linux.basic;
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lab = pkgs.writeShellApplication {
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name = "router-lab";
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runtimeInputs = with pkgs; [ tmux util-linux gnugrep coreutils ];
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text = import ./tests/lab.nix {
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inherit (pkgs) lib;
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driver = test.driverInteractive;
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nodes = builtins.attrNames test.nodes;
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};
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};
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in
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{
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type = "app";
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program = "${lab}/bin/router-lab";
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};
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formatter = forAllSystems (pkgs: pkgs.nixfmt);
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};
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}
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