398 lines
12 KiB
Nix
398 lines
12 KiB
Nix
# SPDX-FileCopyrightText: 2020 Luke Granger-Brown <depot@lukegb.com>
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#
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# SPDX-License-Identifier: Apache-2.0
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{ lib, config, pkgs, ... }:
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with lib;
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let
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cfg = config.my.blade-router;
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in
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{
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imports = [
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../lib/bgp.nix
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];
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options.my.blade-router = {
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addresses.linknet.v4 = {
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local = mkOption { type = types.str; };
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remote = mkOption { type = types.str; };
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prefixLength = mkOption { type = types.int; default = 31; };
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};
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addresses.linknet.v6 = {
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local = mkOption { type = types.str; };
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remote = mkOption { type = types.str; };
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prefixLength = mkOption { type = types.int; default = 126; };
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};
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addresses.br-public.v4 = {
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addr = mkOption { type = types.str; };
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prefixLength = mkOption { type = types.int; default = 24; };
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};
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addresses.br-public.v6 = {
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addr = mkOption { type = types.str; };
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prefixLength = mkOption { type = types.int; default = 48; };
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};
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addresses.br-public-vip.v4 = {
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addr = mkOption { type = types.str; default = "92.118.28.1"; };
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prefixLength = mkOption { type = types.int; default = 24; };
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};
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addresses.br-public-vip.v6 = {
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addr = mkOption { type = types.str; default = "2a09:a441::1"; };
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prefixLength = mkOption { type = types.int; default = 48; };
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};
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addresses.br-public-vip.v6-ll = {
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addr = mkOption { type = types.str; default = "fe80::f00f"; };
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prefixLength = mkOption { type = types.int; default = 64; };
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};
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addresses.br-public-radvd-prefix = {
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addr = mkOption { type = types.str; default = "2a09:a441:0:ffff::"; };
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prefixLength = mkOption { type = types.int; default = 64; };
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};
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linx.enable = mkEnableOption "linx";
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addresses.vl-linx.v4 = {
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addr = mkOption { type = types.str; default = "195.66.224.58"; };
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prefixLength = mkOption { type = types.int; default = 22; };
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};
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addresses.vl-linx.v6 = {
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addr = mkOption { type = types.str; default = "2001:7f8:4::3:22a7:1"; };
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prefixLength = mkOption { type = types.int; default = 64; };
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};
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vrrp.priority = mkOption { type = types.int; };
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};
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config = {
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boot.kernel.sysctl = {
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"net.ipv4.ip_forward" = 1;
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"net.ipv6.conf.all.forwarding" = 1;
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"net.ipv4.conf.vl-linx.arp_announce" = 1;
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"net.ipv4.conf.vl-linx.arp_ignore" = 1;
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"net.ipv4.neigh.vl-linx.base_reachable_time_ms" = 14400000;
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"net.ipv6.neigh.vl-linx.base_reachable_time_ms" = 14400000;
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};
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networking = {
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vlans.vl-transit = {
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id = 100;
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interface = "en-internet";
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};
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vlans.vl-linx = {
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id = 200;
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interface = "en-internet";
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};
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interfaces.br-public.ipv4.addresses = [{
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address = config.my.blade-router.addresses.br-public.v4.addr;
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prefixLength = config.my.blade-router.addresses.br-public.v4.prefixLength;
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}];
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interfaces.br-public.ipv6.addresses = [{
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address = config.my.blade-router.addresses.br-public.v6.addr;
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prefixLength = config.my.blade-router.addresses.br-public.v6.prefixLength;
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}];
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interfaces.vl-transit.ipv4.addresses = [{
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address = config.my.blade-router.addresses.linknet.v4.local;
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prefixLength = config.my.blade-router.addresses.linknet.v4.prefixLength;
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}];
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interfaces.vl-transit.ipv6.addresses = [{
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address = config.my.blade-router.addresses.linknet.v6.local;
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prefixLength = config.my.blade-router.addresses.linknet.v6.prefixLength;
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}];
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interfaces.vl-linx.macAddress = "e4:11:5b:ac:e4:00";
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interfaces.vl-linx.ipv4.addresses = [{
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address = cfg.addresses.vl-linx.v4.addr;
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prefixLength = cfg.addresses.vl-linx.v4.prefixLength;
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}];
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interfaces.vl-linx.ipv6.addresses = [{
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address = cfg.addresses.vl-linx.v6.addr;
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prefixLength = cfg.addresses.vl-linx.v6.prefixLength;
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}];
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defaultGateway = config.my.blade-router.addresses.linknet.v4.remote;
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defaultGateway6 = config.my.blade-router.addresses.linknet.v6.remote;
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firewall.extraCommands = ''
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iptables -A INPUT -p vrrp -i br-mgmt -j ACCEPT
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ip6tables -A INPUT -p vrrp -i br-mgmt -j ACCEPT
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'';
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};
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services.lukegbgp = {
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enable = true;
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config = let
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linx = {
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local = {
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asn = 205479;
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v4 = cfg.addresses.vl-linx.v4.addr;
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v6 = cfg.addresses.vl-linx.v6.addr;
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};
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};
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in {
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local.routerID = config.my.blade-router.addresses.linknet.v4.local;
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peering.veloxserv = {
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local = {
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asn = 205479;
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v4 = config.my.blade-router.addresses.linknet.v4.local;
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v6 = config.my.blade-router.addresses.linknet.v6.local;
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};
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remote = {
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asn = 3170;
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export_community = 4001;
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bgp_local_pref = 101;
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drop_asns = [
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15169 # prefer RS to transit
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];
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routers = [{
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v4 = config.my.blade-router.addresses.linknet.v4.remote;
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v6 = config.my.blade-router.addresses.linknet.v6.remote;
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}];
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};
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};
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peering.bgptoolscollector = {
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local = {
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asn = 205479;
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v4 = config.my.blade-router.addresses.linknet.v4.local;
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v6 = config.my.blade-router.addresses.linknet.v6.local;
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};
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remote = {
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asn = 212232;
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export_community = 5000;
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "185.230.223.42";
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v6 = "2a0c:2f07:9459::b1";
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multihop = 64;
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}];
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prefix_limit.v4 = 0;
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prefix_limit.v6 = 0;
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is_route_collector = true;
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};
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};
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peering.linxcollector = linx // {
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remote = {
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asn = 5459;
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export_community = 5000;
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.224.254";
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v6 = "2001:7f8:4::1553:1";
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}];
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prefix_limit.v4 = 0;
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prefix_limit.v6 = 0;
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is_route_collector = true;
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};
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};
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peering.linx = linx // {
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remote = {
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asn = 8714;
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export_community = 5001;
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.225.230";
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v6 = "2001:7f8:4::220a:1";
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} {
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enabled = cfg.linx.enable;
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v4 = "195.66.225.231";
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v6 = "2001:7f8:4::220a:2";
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}];
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bgp_local_pref = 109;
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must_be_next_hop = false;
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};
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};
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peering.facebook = linx // {
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remote = {
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asn = 32934;
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export_community = 5002;
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.225.69";
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v6 = "2001:7f8:4::80a6:1";
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} {
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enabled = cfg.linx.enable;
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v4 = "195.66.225.121";
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v6 = "2001:7f8:4::80a6:2";
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} {
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enabled = cfg.linx.enable;
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v4 = "195.66.227.19";
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v6 = "2001:7f8:4::80a6:5";
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} {
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enabled = cfg.linx.enable;
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v4 = "195.66.226.140";
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v6 = "2001:7f8:4::80a6:3";
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}];
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bgp_local_pref = 120;
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prefix_limit.v4 = 100;
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prefix_limit.v6 = 100;
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};
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};
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peering.openpeering = linx // {
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remote = {
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asn = 20562;
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export_community = 5003;
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passive = true; # pending
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.225.53";
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v6 = "2001:7f8:4::5052:1";
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}];
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bgp_local_pref = 110;
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prefix_limit.v4 = 16000;
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prefix_limit.v6 = 3000;
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};
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};
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peering.freetransitnet = linx // {
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remote = {
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asn = 212895;
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export_community = 5004;
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passive = true; # pending v6
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bgp_local_pref = 100;
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.225.105";
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v6 = "2001:7f8:4::3:3f9f:2";
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}];
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};
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};
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peering.he = linx // {
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remote = {
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asn = 6939;
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export_community = 5005;
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.224.21";
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v6 = "2001:7f8:4::1b1b:1";
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}];
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bgp_local_pref = 108;
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prefix_limit.v4 = 176000;
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prefix_limit.v6 = 156000;
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};
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};
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peering.clouvider = linx // {
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remote = {
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asn = 62240;
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export_community = 5006;
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passive = true; # pending
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.227.14";
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v6 = "2001:7f8:4::f320:1";
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}];
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bgp_local_pref = 120;
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prefix_limit.v4 = 1000;
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prefix_limit.v6 = 1000;
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};
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};
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peering.google = linx // {
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remote = {
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asn = 15169;
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export_community = 5007;
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.224.125";
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v6 = "2001:7f8:4::3b41:1";
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}];
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bgp_local_pref = 120;
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prefix_limit.v4 = 15000;
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prefix_limit.v6 = 10000;
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};
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};
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peering.cloudflare = linx // {
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remote = {
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asn = 13337;
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export_community = 5008;
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passive = true; # pending
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.225.179";
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v6 = "2001:7f8:4::3417:1";
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} {
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enabled = cfg.linx.enable;
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v4 = "195.66.227.207";
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v6 = "2001:7f8:4::3417:2";
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}];
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bgp_local_pref = 120;
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prefix_limit.v4 = 20000;
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prefix_limit.v6 = 2000;
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};
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};
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peering.fastly = linx // {
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remote = {
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asn = 54113;
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export_community = 5009;
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passive = true; # pending
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routers = [{
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enabled = cfg.linx.enable;
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v4 = "195.66.225.91";
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v6 = "2001:7f8:4::d361:1";
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} {
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enabled = cfg.linx.enable;
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v4 = "195.66.227.114";
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v6 = "2001:7f8:4::d361:2";
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}];
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bgp_local_pref = 120;
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prefix_limit.v4 = 250;
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prefix_limit.v6 = 250;
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};
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};
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export.v4 = [ "92.118.28.0/24" ];
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export.v6 = [ "2a09:a441::/32" ];
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};
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};
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services.keepalived = let
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mgmtBase = {
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interface = "br-mgmt";
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state = "MASTER";
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priority = config.my.blade-router.vrrp.priority;
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};
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in {
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enable = true;
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vrrpInstances.mgmtGateway4 = mgmtBase // {
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virtualIps = [
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{ addr = "10.100.0.1/23"; }
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{ addr = "${config.my.blade-router.addresses.br-public-vip.v4.addr}/${toString config.my.blade-router.addresses.br-public-vip.v4.prefixLength}"; dev = "br-public"; }
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];
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virtualRouterId = 1;
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};
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vrrpInstances.mgmtGateway6 = mgmtBase // {
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virtualIps = [
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{ addr = "${config.my.blade-router.addresses.br-public-vip.v6-ll.addr}/${toString config.my.blade-router.addresses.br-public-vip.v6-ll.prefixLength}"; dev = "br-public"; }
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{ addr = "${config.my.blade-router.addresses.br-public-vip.v6.addr}/${toString config.my.blade-router.addresses.br-public-vip.v6.prefixLength}"; dev = "br-public"; }
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];
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virtualRouterId = 2;
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};
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extraGlobalDefs = ''
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enable_script_security
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script_user root
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'';
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extraConfig = ''
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vrrp_sync_group mgmtGateway {
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group {
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mgmtGateway4
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mgmtGateway6
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}
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}
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'';
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};
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services.radvd = {
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enable = true;
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config = ''
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interface br-public {
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AdvSendAdvert on;
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MinRtrAdvInterval 30;
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MaxRtrAdvInterval 100;
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AdvRASrcAddress {
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${config.my.blade-router.addresses.br-public-vip.v6-ll.addr};
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};
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prefix ${config.my.blade-router.addresses.br-public-radvd-prefix.addr}/${toString config.my.blade-router.addresses.br-public-radvd-prefix.prefixLength} {
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AdvOnLink on;
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AdvAutonomous on;
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AdvRouterAddr off;
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};
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};
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'';
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};
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};
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}
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