dns/bind: allow IPv4-only mode (#1539)

dns/bind/Makefile

@@ -1,6 +1,5 @@
 PLUGIN_NAME=		bind
-PLUGIN_VERSION=		1.8
-PLUGIN_REVISION=	2
+PLUGIN_VERSION=		1.9
 PLUGIN_COMMENT=		BIND domain name service
 PLUGIN_DEPENDS=		bind914
 PLUGIN_MAINTAINER=	m.muenz@gmail.com

dns/bind/pkg-descr

@@ -8,6 +8,10 @@ necessary for asking and answering name service questions.
 Plugin Changelog
 ================
 
+1.9
+
+* Allow IPv4-only mode
+
 1.8
 
 * Fix template generation when there is only one zone configured

dns/bind/src/opnsense/mvc/app/controllers/OPNsense/Bind/forms/general.xml

@@ -5,6 +5,12 @@
         <type>checkbox</type>
         <help>This will activate the BIND daemon.</help>
     </field>
+    <field>
+        <id>general.disablev6</id>
+        <label>Disable IPv6</label>
+        <type>checkbox</type>
+        <help>This will run BIND in IPv4-only mode.</help>
+    </field>
     <field>
         <id>general.listenv4</id>
         <label>Listen IPs</label>

dns/bind/src/opnsense/mvc/app/models/OPNsense/Bind/General.xml

@@ -1,12 +1,16 @@
 <model>
     <mount>//OPNsense/bind/general</mount>
     <description>BIND configuration</description>
-    <version>1.0.5</version>
+    <version>1.0.6</version>
     <items>
         <enabled type="BooleanField">
             <default>0</default>
             <Required>Y</Required>
         </enabled>
+        <disablev6 type="BooleanField">
+            <default>0</default>
+            <Required>Y</Required>
+        </disablev6>
         <enablerpz type="BooleanField">
             <default>1</default>
             <Required>Y</Required>

dns/bind/src/opnsense/service/templates/OPNsense/Bind/named

@@ -1,5 +1,8 @@
 {% if helpers.exists('OPNsense.bind.general.enabled') and OPNsense.bind.general.enabled == '1' %}
 named_var_script="/usr/local/opnsense/scripts/OPNsense/Bind/setup.sh"
+{% if helpers.exists('OPNsense.bind.general.disablev6') and OPNsense.bind.general.disablev6 == '1' %}
+named_flags="-4"
+{% endif %}
 {% if helpers.exists('OPNsense.bind.dnsbl.enabled') and OPNsense.bind.dnsbl.enabled == '1' %}
 {% if helpers.exists('OPNsense.bind.dnsbl.type') and OPNsense.bind.dnsbl.type != '' %}
 named_dnsbl="{{ OPNsense.bind.dnsbl.type }}"