From 11298a01f74c7952b924d001c548d9721eebf591 Mon Sep 17 00:00:00 2001
From: Adam Kacmarsky <adam.kacmarsky@hp.com>
Date: Fri, 26 Jun 2015 14:49:47 -0600
Subject: [PATCH] Add IPv6 support for _move_neutron_addresses_route

Added functionallity to allow IPv6 addresses to be moved to the
OVS_PHYSICAL_BRIDGE from PUBLIC_INTERFACE automatically using
_move_neutron_addresses_route. Only PUBLIC_INTERFACE and
OVS_PHYSICAL_BRIDGE need to be set in localrc.

HOST_IP must be set in localrc. HOST_IPV6 must be set in localrc if a
global IPv6 address is configured on PUBLIC_INTERFACE.

Change-Id: I8d2c055702e1c7cf08499a77f6843393762fd4c1
---
 lib/neutron-legacy | 27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/lib/neutron-legacy b/lib/neutron-legacy
index cb1d1ef2ad..ee98015708 100644
--- a/lib/neutron-legacy
+++ b/lib/neutron-legacy
@@ -788,6 +788,7 @@ function _move_neutron_addresses_route {
     local from_intf=$1
     local to_intf=$2
     local add_ovs_port=$3
+    local af=$4
 
     if [[ -n "$from_intf" && -n "$to_intf" ]]; then
         # Remove the primary IP address from $from_intf and add it to $to_intf,
@@ -795,10 +796,18 @@ function _move_neutron_addresses_route {
         # on configure we will also add $from_intf as a port on $to_intf,
         # assuming it is an OVS bridge.
 
-        local IP_BRD=$(ip -4 a s dev $from_intf | awk '/inet/ { print $2, $3, $4; exit }')
+        local IP_BRD=$(ip -f $af a s dev $from_intf | awk '/inet/ { print $2, $3, $4; exit }')
         local DEFAULT_ROUTE_GW=$(ip r | awk "/default.+$from_intf/ { print \$3; exit }")
         local ADD_OVS_PORT=""
 
+        if [[ $af == "inet" ]]; then
+            IP_BRD=$(ip -f $af a s dev $from_intf | grep $HOST_IP | awk '{ print $2, $3, $4; exit }')
+        fi
+
+        if [[ $af == "inet6" ]]; then
+            IP_BRD=$(ip -f $af a s dev $from_intf | grep $HOST_IPV6 | awk '{ print $2, $3, $4; exit }')
+        fi
+
         if [ "$DEFAULT_ROUTE_GW" != "" ]; then
             ADD_DEFAULT_ROUTE="sudo ip r replace default via $DEFAULT_ROUTE_GW dev $to_intf"
         fi
@@ -815,7 +824,13 @@ function _move_neutron_addresses_route {
 # runs that a clean run would need to clean up
 function cleanup_neutron {
 
-    _move_neutron_addresses_route "$OVS_PHYSICAL_BRIDGE" "$PUBLIC_INTERFACE" False
+    if [[ $(ip -f inet a s dev "$OVS_PHYSICAL_BRIDGE" | grep -c 'global') != 0 ]]; then
+        _move_neutron_addresses_route "$OVS_PHYSICAL_BRIDGE" "$PUBLIC_INTERFACE" False "inet"
+    fi
+
+    if [[ $(ip -f inet6 a s dev "$OVS_PHYSICAL_BRIDGE" | grep -c 'global') != 0 ]]; then
+        _move_neutron_addresses_route "$OVS_PHYSICAL_BRIDGE" "$PUBLIC_INTERFACE" False "inet6"
+    fi
 
     if is_provider_network && is_ironic_hardware; then
         for IP in $(ip addr show dev $OVS_PHYSICAL_BRIDGE | grep ' inet ' | awk '{print $2}'); do
@@ -997,8 +1012,12 @@ function _configure_neutron_l3_agent {
 
     neutron_plugin_configure_l3_agent
 
-    if [[ $(ip -4 a s dev "$PUBLIC_INTERFACE" | grep -c 'inet') != 0 ]]; then
-        _move_neutron_addresses_route "$PUBLIC_INTERFACE" "$OVS_PHYSICAL_BRIDGE" True
+    if [[ $(ip -f inet a s dev "$PUBLIC_INTERFACE" | grep -c 'global') != 0 ]]; then
+        _move_neutron_addresses_route "$PUBLIC_INTERFACE" "$OVS_PHYSICAL_BRIDGE" True "inet"
+    fi
+
+    if [[ $(ip -f inet6 a s dev "$PUBLIC_INTERFACE" | grep -c 'global') != 0 ]]; then
+        _move_neutron_addresses_route "$PUBLIC_INTERFACE" "$OVS_PHYSICAL_BRIDGE" False "inet6"
     fi
 }