339 lines
9.5 KiB
Nix
339 lines
9.5 KiB
Nix
{ config, options, lib, ... }:
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with lib;
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let
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dhcpOpts = {
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start = mkOption {
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description = "First IP address in pool";
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type = types.str;
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};
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end = mkOption {
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description = "Last IP address in pool";
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type = types.str;
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};
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time = mkOption {
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description = "Renew time in seconds";
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type = types.int;
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};
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max-time = mkOption {
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description = "Max renew time in seconds";
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type = types.int;
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};
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server = mkOption {
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description = "Container that runs the DHCP server";
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type = types.str;
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};
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router = mkOption {
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description = "Gateway";
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type = types.str;
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};
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fixed-hosts = mkOption {
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type = with types; attrsOf str;
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default = {};
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};
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};
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netOpts = { name, ... }: {
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options = {
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vlan = mkOption {
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description = "VLAN tag number";
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type = types.int;
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};
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subnet4 = mkOption {
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description = "v.w.x.y/z";
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type = with types; nullOr str;
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default = null;
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};
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subnet4Net = mkOption {
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type = with types; nullOr types.str;
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default =
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let
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inherit (config.site.net.${name}) subnet4;
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s = lib.splitString "/" subnet4;
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in
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if subnet4 != null && builtins.length s == 2
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then builtins.head s
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else null;
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};
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subnet4Len = mkOption {
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type = with types; nullOr types.int;
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default =
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let
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inherit (config.site.net.${name}) subnet4;
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s = lib.splitString "/" subnet4;
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in
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if subnet4 != null && builtins.length s == 2
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then lib.toInt (elemAt s 1)
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else null;
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};
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subnets6 = mkOption {
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description = "IPv6 subnets w/o prefixlen (always 64)";
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type = with types; attrsOf str;
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default = {};
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};
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hosts4 = mkOption {
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description = "Attribute set of hostnames to IPv4 addresses";
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type = with types; attrsOf str;
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default = {};
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};
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hosts6 = mkOption {
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description = "Attribute set of contexts to attribute sets of hostnames to IPv4 addresses";
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type = with types; attrsOf (attrsOf str);
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default = {};
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};
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ospf = {
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secret = mkOption {
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type = with types; nullOr str;
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default = null;
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};
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};
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dhcp = mkOption {
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type = with types; nullOr (submodule { options = dhcpOpts; });
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default = null;
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};
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domainName = mkOption {
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description = "Domain name option";
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type = types.str;
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default = "${name}.zentralwerk.dn42";
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};
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dynamicDomain = mkOption {
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type = types.bool;
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default = false;
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description = "Domain updated by DHCP server?";
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};
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};
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};
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upstreamOpts = {
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upBandwidth = mkOption {
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type = with types; nullOr int;
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};
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noNat.subnets6 = mkOption {
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type = with types; listOf str;
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default = [];
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description = "Do not NAT66 traffic from these public static subnets";
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};
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};
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interfaceOpts = { name, ... }: {
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options = {
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hwaddr = mkOption {
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type = with types; nullOr str;
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default = null;
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description = "Static MAC address";
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};
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type = mkOption {
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type = types.enum [ "phys" "veth" ];
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description = ''
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veth: Virtual ethernet to be attached to a bridge.
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phys: (Physical) interface from a server moved into the
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container. Do not use with VLAN interfaces because they
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won't be moved back after lxc-stop.
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'';
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};
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gw4 = mkOption {
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type = with types; nullOr str;
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default = null;
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description = "IPv4 gateway";
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};
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gw6 = mkOption {
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type = with types; nullOr str;
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default = null;
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description = "IPv6 gateway";
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};
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upstream = mkOption {
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type = with types; nullOr (submodule { options = upstreamOpts; });
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default = null;
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description = "Upstream interface configuration";
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};
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};
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};
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hostOpts = { name, ... }: {
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options = {
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prebuilt = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Include the container system in the server's `build-container` script.
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'';
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};
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role = mkOption {
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type = types.enum [ "ap" "switch" "server" "container" "client" ];
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default = "client";
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};
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model = mkOption {
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type = types.str;
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default = {
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ap = "unknown";
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switch = "unknown";
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server = "pc";
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container = "lxc";
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client = "any";
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}."${config.site.hosts.${name}.role}";
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};
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password = mkOption {
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type = with types; nullOr str;
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default = null;
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};
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location = mkOption {
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type = with types; nullOr str;
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default = null;
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};
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interfaces = mkOption {
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default = {};
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type = with types; attrsOf (submodule interfaceOpts);
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description = "Network interfaces";
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};
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isRouter = mkOption {
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type = types.bool;
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# isRouter = Part of the core network?
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default =
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config.site.hosts.${name}.interfaces ? core &&
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config.site.net.core.hosts4 ? ${name};
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description = "Should this host route?";
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};
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firewall.enable = mkOption {
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type = types.bool;
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default = false;
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description = "Enable firewall to disallow incoming connections from core";
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};
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forwardPorts = mkOption {
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type = with types; listOf (submodule { options = {
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proto = mkOption {
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type = types.enum [ "tcp" "udp" ];
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};
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sourcePort = mkOption {
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type = types.int;
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};
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destination = mkOption {
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type = types.str;
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};
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}; });
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default = [];
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};
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ospf.stubNets4 = mkOption {
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type = with types; listOf str;
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default = [];
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description = "Additional IPv4 networks to announce";
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};
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ospf.stubNets6 = mkOption {
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type = with types; listOf str;
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default = [];
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description = "Additional IPv6 networks to announce";
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};
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ospf.allowedUpstreams = mkOption {
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type = with types; listOf str;
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default = [];
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description = "Accept default routes from these OSPF routers, in order of preference";
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};
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ospf.upstreamInstance = mkOption {
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type = with types; nullOr int;
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default = null;
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description = "OSPF instance for advertising the default route";
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};
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wireguard = mkOption {
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default = {};
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type = with types; attrsOf (submodule (
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{ name, ... }: {
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options = {
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endpoint = mkOption {
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type = str;
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};
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publicKey = mkOption {
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type = str;
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};
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privateKey = mkOption {
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type = str;
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};
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addresses = mkOption {
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type = listOf str;
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};
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upBandwidth = mkOption {
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type = with types; nullOr int;
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};
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};
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}
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));
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};
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bgp = mkOption {
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default = null;
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type = with types; nullOr (submodule {
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options = bgpOpts;
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});
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};
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services.dns = {
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enable = mkOption {
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type = types.bool;
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default = false;
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};
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};
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services.dnscache.enable = mkOption {
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type = types.bool;
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default = false;
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};
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};
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};
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bgpOpts = {
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asn = mkOption {
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type = types.int;
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};
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peers = mkOption {
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type = with types; attrsOf (submodule ({ name, ... }: {
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options = {
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asn = mkOption {
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type = types.int;
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};
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};
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}));
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default = {};
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};
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};
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in
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{
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options.site = {
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net = mkOption {
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default = {};
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type = with types; attrsOf (submodule netOpts);
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};
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hosts = mkOption {
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default = {};
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type = with types; attrsOf (submodule hostOpts);
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};
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};
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config.warnings =
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let
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findCollisions = getter: xs:
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(builtins.foldl' ({ known, dup }: k:
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let
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ks = builtins.toString k;
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in
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if known ? ${ks}
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then { inherit known; dup = dup ++ [ks]; }
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else { known = known // { ${ks} = true; }; inherit dup; }
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) {
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known = {}; dup = [];
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} (
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concatMap getter (builtins.attrValues xs)
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)).dup;
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reportCollisions = name: getter: xs:
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map (k: "Duplicate ${name}: ${k}") (findCollisions getter xs);
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ospfUpstreamXorGw =
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builtins.concatMap (hostName:
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let
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hostConf = config.site.hosts.${hostName};
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gwNets = builtins.filter (netName:
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hostConf.interfaces.${netName}.gw4 != null
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) (builtins.attrNames hostConf.interfaces);
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in if gwNets != [] && hostConf.ospf.allowedUpstreams != []
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then [ ''
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Host ${hostName} has gateway on ${builtins.head gwNets} but accepts default routes from OSPF
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'' ]
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else []
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) (builtins.attrNames config.site.hosts);
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in
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(reportCollisions "VLAN tag" (x: [x.vlan]) config.site.net) ++
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(reportCollisions "IPv4 subnet" (x: if x.subnet4 == null then [] else [x.subnet4]) config.site.net) ++
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(reportCollisions "IPv6 subnet" (x: builtins.attrValues x.subnets6) config.site.net) ++
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ospfUpstreamXorGw;
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}
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