From a9d3b7894e2e4fc1a9f3be0d30d63ccc3b042c33 Mon Sep 17 00:00:00 2001
From: "Dustin C. Hatch" <dustin@hatch.name>
Date: Fri, 22 Mar 2019 09:05:14 -0500
Subject: [PATCH] roles/dhcpd: Support UniFi DHCP option 43

The `ubnt.unifi-address` DHCP option can be set to provide Ubiquiti
hardware with the hostname of the UniFi controller.
---
 roles/dhcpd/templates/dhcpd.conf.j2 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/roles/dhcpd/templates/dhcpd.conf.j2 b/roles/dhcpd/templates/dhcpd.conf.j2
index ab46ea8..fe27c66 100644
--- a/roles/dhcpd/templates/dhcpd.conf.j2
+++ b/roles/dhcpd/templates/dhcpd.conf.j2
@@ -1,6 +1,9 @@
 # vim: set ft=dhcpd :
 {# vim: set ft=jinja : #}
 
+option space ubnt;
+option ubnt.unifi-address code 1 = ip-address;
+
 {% if dhcp_domain_name is defined %}
 option domain-name "{{ dhcp_domain_name }}";
 {% endif %}
@@ -50,6 +53,9 @@ subnet {{ subnet.address|ipv4('network') }} netmask {{ subnet.address|ipv4('netm
     filename "{{ subnet.boot_filename }}";
 {% endif %}
 {% endif %}
+{% if subnet.unifi_address is defined %}
+    option ubnt.unifi-address {{ subnet.unifi_address }};
+{% endif %}
 {% if not subnet.ddns_updates|d(true)|bool %}
     ddns-updates off;
 {% elif subnet.dynamic_hostnames|d|bool %}