From 9fd12ac43bdd8d457df0830791848a47a6159304 Mon Sep 17 00:00:00 2001
From: Nico Schottelius <nico@nico-notebook.schottelius.org>
Date: Wed, 24 Jul 2024 11:05:28 +0200
Subject: [PATCH] openwrt/nat64: add jool support

---
 openwrt/openwrt-nat64-bootstrap.sh | 39 +++++++++++++++++++++++++++---
 1 file changed, 36 insertions(+), 3 deletions(-)

diff --git a/openwrt/openwrt-nat64-bootstrap.sh b/openwrt/openwrt-nat64-bootstrap.sh
index e29736e..e09d5c2 100755
--- a/openwrt/openwrt-nat64-bootstrap.sh
+++ b/openwrt/openwrt-nat64-bootstrap.sh
@@ -9,7 +9,7 @@
 # - do not provide IPv4 or IPv6 dhcp/ra on any interface
 
 if [ $# -lt 4 ] ; then
-    echo $0 "address hostname nat64prefix nat64route asn routerid iBGPpeer1 [iBGPpeer2...]"
+    echo $0 "address hostname nat64prefix nat64route ipv4out asn routerid iBGPpeer1 [iBGPpeer2...]"
     exit 1
 fi
 
@@ -17,6 +17,7 @@ address=$1; shift
 hostname=$1; shift
 nat64prefix=$1; shift
 nat64route=$1; shift
+ipv4out=$1; shift
 asn=$1; shift
 routerid=$1; shift
 ibgp_peers="$@"
@@ -66,11 +67,43 @@ BBB
 done
 
 # TODO: configure jool
-# TODO: start jool
+cat >> /etc/jool/jool-nat64.conf.json <<BBB
+{
+  "comment": "NAT64 by cdist",
+
+  "instance": "default",
+  "framework": "netfilter",
+
+  "global": {
+    "comment": "pool6 prefix",
+    "pool6": "${nat64prefix}"
+  },
+
+  "comment": "IPv4 pool4 table",
+  "pool4": [
+    {
+      "protocol": "TCP",
+      "prefix": "${ipv4out}",
+      "port range": "40001-65535"
+    }, {
+      "protocol": "UDP",
+      "prefix": "${ipv4out}",
+      "port range": "40001-65535"
+    }, {
+      "protocol": "ICMP",
+      "prefix": "${ipv4out}",
+      "port range": "40001-65535"
+    }
+  ]
+}
+BBB
+
+# start jool
+/etc/init.d/jool restart
+
 # TODO: ensure jool is started at boot
 # TODO: ensure bird is started at boot
 
-
 uci commit
 /etc/init.d/bird restart