From 09a0cecf02972fa9019fcfd900c50b27797f40e2 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Fri, 27 Mar 2020 17:03:24 +0100
Subject: ipv6: T1831: migrate autoconf node

Autoconfigure addresses using Prefix Information in Router Advertisements.
---
 python/vyos/configdict.py         |  5 +++++
 python/vyos/ifconfig/interface.py | 11 +++++++++++
 python/vyos/ifconfig_vlan.py      |  4 +++-
 3 files changed, 19 insertions(+), 1 deletion(-)

(limited to 'python/vyos')

diff --git a/python/vyos/configdict.py b/python/vyos/configdict.py
index b0214ded4..66da52ff3 100644
--- a/python/vyos/configdict.py
+++ b/python/vyos/configdict.py
@@ -123,6 +123,7 @@ def vlan_to_dict(conf):
         'ip_enable_arp_accept': 0,
         'ip_enable_arp_announce': 0,
         'ip_enable_arp_ignore': 0,
+        'ipv6_autoconf': 0,
         'ipv6_forwarding': 1,
         'ipv6_dup_addr_detect': 1,
         'ingress_qos': '',
@@ -189,6 +190,10 @@ def vlan_to_dict(conf):
     if conf.exists('ip enable-arp-ignore'):
         vlan['ip_enable_arp_ignore'] = 1
 
+    # Enable acquisition of IPv6 address using stateless autoconfig (SLAAC)
+    if conf.exists('ipv6 address autoconf'):
+        vlan['ipv6_autoconf'] = 1
+
     # Disable IPv6 forwarding on this interface
     if conf.exists('ipv6 disable-forwarding'):
         vlan['ipv6_forwarding'] = 0
diff --git a/python/vyos/ifconfig/interface.py b/python/vyos/ifconfig/interface.py
index da6b54e69..a2d202466 100644
--- a/python/vyos/ifconfig/interface.py
+++ b/python/vyos/ifconfig/interface.py
@@ -115,6 +115,10 @@ class Interface(DHCP):
             'validate': assert_boolean,
             'location': '/proc/sys/net/ipv4/conf/{ifname}/arp_ignore',
         },
+        'ipv6_autoconf': {
+            'validate': lambda fwd: assert_range(fwd,0,2),
+            'location': '/proc/sys/net/ipv6/conf/{ifname}/autoconf',
+        },
         'ipv6_forwarding': {
             'validate': lambda fwd: assert_range(fwd,0,2),
             'location': '/proc/sys/net/ipv6/conf/{ifname}/forwarding',
@@ -382,6 +386,13 @@ class Interface(DHCP):
         """
         return self.set_interface('arp_ignore', arp_ignore)
 
+    def set_ipv6_autoconf(self, autoconf):
+        """
+        Autoconfigure addresses using Prefix Information in Router
+        Advertisements.
+        """
+        return self.set_interface('ipv6_autoconf', autoconf)
+
     def set_ipv6_forwarding(self, forwarding):
         """
         Configure IPv6 interface-specific Host/Router behaviour.
diff --git a/python/vyos/ifconfig_vlan.py b/python/vyos/ifconfig_vlan.py
index b3c5f3b76..00270cf58 100644
--- a/python/vyos/ifconfig_vlan.py
+++ b/python/vyos/ifconfig_vlan.py
@@ -64,7 +64,9 @@ def apply_vlan_config(vlan, config):
     vlan.set_arp_announce(config['ip_enable_arp_announce'])
     # configure ARP ignore
     vlan.set_arp_ignore(config['ip_enable_arp_ignore'])
-    # Disable IPv6 forwarding on this interface
+    # IPv6 address autoconfiguration
+    vlan.set_ipv6_autoconf(config['ipv6_autoconf'])
+    # IPv6 forwarding
     vlan.set_ipv6_forwarding(config['ipv6_forwarding'])
     # IPv6 Duplicate Address Detection (DAD) tries
     vlan.set_ipv6_dad_messages(config['ipv6_dup_addr_detect'])
-- 
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