From 579fe9226d478f598be3f26329a7b6af01b9a24d Mon Sep 17 00:00:00 2001
From: somebody <nobody@c3d2.de>
Date: Thu, 18 Apr 2024 13:55:06 +0200
Subject: [PATCH] DHCP: Add control socket and tools

---
 nix/nixos-module/container/dhcp-server.nix | 41 ++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/nix/nixos-module/container/dhcp-server.nix b/nix/nixos-module/container/dhcp-server.nix
index 64883d8..de9c0f7 100644
--- a/nix/nixos-module/container/dhcp-server.nix
+++ b/nix/nixos-module/container/dhcp-server.nix
@@ -176,6 +176,16 @@ in
           builtins.attrValues (
             builtins.mapAttrs makePxe pxeClassData
           );
+
+      control-socket = {
+        socket-type = "unix";
+        socket-name = "/run/kea/dhcp4-socket";
+      };
+      hooks-libraries = [ {
+        library = "/run/current-system/sw/lib/kea/hooks/libdhcp_stat_cmds.so";
+      } {
+        library = "/run/current-system/sw/lib/kea/hooks/libdhcp_lease_cmds.so";
+      } ];
     };
   };
   services.kea.dhcp6 = lib.mkIf enabled {
@@ -245,6 +255,15 @@ in
       #        else null
       #      ) dhcp.fixed-hosts
       #    )));
+      control-socket = {
+        socket-type = "unix";
+        socket-name = "/run/kea/dhcp6.socket";
+      };
+      hooks-libraries = [ {
+        library = "/run/current-system/sw/lib/kea/hooks/libdhcp_stat_cmds.so";
+      } {
+        library = "/run/current-system/sw/lib/kea/hooks/libdhcp_lease_cmds.so";
+      } ];
     };
   };
   services.kea.dhcp-ddns = lib.mkIf enabled {
@@ -281,6 +300,28 @@ in
            lib.hasSuffix ".ip6.arpa" name)
         ) config.site.dns.localZones
       );
+      control-socket = {
+        socket-type = "unix";
+        socket-name = "/run/kea/dhcp-ddns.socket";
+      };
+    };
+  };
+
+  services.kea.ctrl-agent = lib.mkIf enabled {
+    enable = true;
+    settings.control-sockets = {
+      dhcp4 = {
+        socket-type = "unix";
+        socket-name = "/run/kea/dhcp4.socket";
+      };
+      dhcp6 = {
+        socket-type = "unix";
+        socket-name = "/run/kea/dhcp6.socket";
+      };
+      d2 = {
+        socket-type = "unix";
+        socket-name = "/run/kea/dhcp-ddns.socket";
+      };
     };
   };