From 2c6be52ce9114498517a12632942e29301789494 Mon Sep 17 00:00:00 2001
From: Luke Granger-Brown <hg@lukegb.com>
Date: Sat, 4 Jun 2022 12:15:43 +0100
Subject: [PATCH] howl: add BGP for EMFIX

---
 ops/nixos/howl/default.nix | 32 ++++++++++++++++++++++++++++++++
 ops/nixos/lib/bgp.nix      |  2 ++
 2 files changed, 34 insertions(+)

diff --git a/ops/nixos/howl/default.nix b/ops/nixos/howl/default.nix
index 851944eb1a..c01a8b3965 100644
--- a/ops/nixos/howl/default.nix
+++ b/ops/nixos/howl/default.nix
@@ -10,6 +10,7 @@ in {
     ../lib/zfs.nix
     ../lib/graphical-client-wayland.nix
     ../lib/whitby-distributed.nix
+    ../lib/bgp.nix
   ];
 
   boot.initrd.availableKernelModules = [
@@ -189,6 +190,37 @@ in {
 
   my.scrapeJournal.enable = false;  # Laptop, don't pull too much.
 
+  services.lukegbgp = let
+    local = {
+      asn = 205479;
+      v4 = "185.230.223.240";
+      v6 = "2a0c:2f07:ffff::79c";
+    };
+    # .254 / ::1 / 64496
+  in {
+    enable = true;
+    config = {
+      local.routerID = "185.230.223.240";
+      export = {
+        v4 = [ "92.118.31.0/24" ];
+        v6 = [ "2a09:a443::/48" ];
+      };
+      peering.emfixrs = {
+        inherit local;
+        remote = {
+          asn = 64496;
+          export_community = 6000;
+          must_be_next_hop = false;
+          routers = [{
+            v4 = "185.230.223.254";
+            v6 = "2a0c:2f07:ffff::1";
+          }];
+        };
+      };
+    };
+  };
+
+
   # This value determines the NixOS release with which your system is to be
   # compatible, in order to avoid breaking some software such as database
   # servers. You should change this only after NixOS release notes say you
diff --git a/ops/nixos/lib/bgp.nix b/ops/nixos/lib/bgp.nix
index 8e3f78d94f..4166e1515e 100644
--- a/ops/nixos/lib/bgp.nix
+++ b/ops/nixos/lib/bgp.nix
@@ -310,6 +310,7 @@ in {
               bgp_ext_community.add((ro, 205479, 5007));
               bgp_ext_community.add((ro, 205479, 5008));
               bgp_ext_community.add((ro, 205479, 5009));  # fastly from blade-tuvok
+              bgp_ext_community.add((ro, 205479, 6000));  # EMF: EMF-IX Route Server
 
               # do not export to clouvider; they do... strange things.
               bgp_ext_community.add((rt, 0, 62240));
@@ -342,6 +343,7 @@ in {
               bgp_ext_community.add((ro, 205479, 5007));  # google from blade-tuvok
               bgp_ext_community.add((ro, 205479, 5008));  # cloudflare from blade-tuvok
               bgp_ext_community.add((ro, 205479, 5009));  # fastly from blade-tuvok
+              bgp_ext_community.add((ro, 205479, 6000));  # EMF: EMF-IX Route Server
 
               # do not export to clouvider; they do... strange things.
               bgp_ext_community.add((rt, 0, 62240));