From 4a8a3e1325bcfe4f6fcbb328cdd1eb67b3b0d86a Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Wed, 4 Mar 2020 08:55:53 +0100
Subject: pppoe: T1318: IPv6 support

---
 src/conf_mode/interfaces-pppoe.py | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'src/conf_mode/interfaces-pppoe.py')

diff --git a/src/conf_mode/interfaces-pppoe.py b/src/conf_mode/interfaces-pppoe.py
index 8ec78bab3..90d34fa4a 100755
--- a/src/conf_mode/interfaces-pppoe.py
+++ b/src/conf_mode/interfaces-pppoe.py
@@ -23,6 +23,7 @@ from subprocess import Popen, PIPE
 from time import sleep
 from pwd import getpwnam
 from grp import getgrnam
+from stat import S_IRUSR, S_IWUSR, S_IXUSR, S_IRGRP, S_IXGRP, S_IROTH, S_IXOTH
 
 from vyos.config import Config
 from vyos.ifconfig import Interface
@@ -99,6 +100,21 @@ rp_pppoe_service "{{ service_name }}"
 
 """
 
+config_pppoe_ipv6_up_tmpl = """
+#!/bin/sh
+
+logger -t PPPoE/{{ intf }} "1:$1 2:$2 3:$3 4:$4 5:$5 6:$6 "
+
+if [ "$6" != "{{ intf }}" ]; then
+    exit
+fi
+
+echo 0 > /proc/sys/net/ipv6/conf/{{ intf }}/forwarding
+echo 2 > /proc/sys/net/ipv6/conf/{{ intf }}/accept_ra
+echo 1 > /proc/sys/net/ipv6/conf/{{ intf }}/autoconf
+
+"""
+
 PPP_LOGFILE = '/var/log/vyatta/ppp_{}.log'
 
 default_config_data = {
@@ -228,6 +244,7 @@ def verify(pppoe):
 
 def generate(pppoe):
     config_file_pppoe = '/etc/ppp/peers/{}'.format(pppoe['intf'])
+    script_file = '/etc/ppp/ipv6-up.d/50-vyos-{}-autoconf'.format(pppoe['intf'])
 
     # Always hang-up PPPoE connection prior generating new configuration file
     cmd = 'systemctl stop ppp@{}.service'.format(pppoe['intf'])
@@ -238,6 +255,9 @@ def generate(pppoe):
         if os.path.exists(config_file_pppoe):
             os.unlink(config_file_pppoe)
 
+        if os.path.exists(script_file)
+            os.unlink(config_file_pppoe)
+
     else:
         # Create PPP configuration files
         tmpl = Template(config_pppoe_tmpl)
@@ -245,6 +265,15 @@ def generate(pppoe):
         with open(config_file_pppoe, 'w') as f:
             f.write(config_text)
 
+        if pppoe['ipv6_enable']:
+            script_file = '/etc/ppp/ipv6-up.d/50-vyos-{}-autoconf'.format(pppoe['intf'])
+            tmpl = Template(config_pppoe_ipv6_up_tmpl)
+            config_text = tmpl.render(pppoe)
+            with open(script_file, 'w') as f:
+                f.write(config_text)
+
+            os.chmod(script_file, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)
+
     return None
 
 def apply(pppoe):
-- 
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