From 472c95689fca0611e01a83d59e1d1e70c9d35fc7 Mon Sep 17 00:00:00 2001
From: Cheeze_It <none@none.com>
Date: Sun, 25 Jul 2021 14:19:40 -0600
Subject: isis: T3693: Adding IPv6 redistribution to ISIS

In this commit we add the ability to redistribute into
ISIS for IPv6 address family.
---
 data/templates/frr/isis.frr.tmpl                   | 33 +++++++++----
 .../include/isis/protocol-common-config.xml.i      | 57 +++++++++++++++++++++-
 .../include/isis/redistribute-ipv6.xml.i           | 42 ++++++++++++++++
 src/conf_mode/protocols_isis.py                    |  2 +-
 4 files changed, 123 insertions(+), 11 deletions(-)
 create mode 100644 interface-definitions/include/isis/redistribute-ipv6.xml.i

diff --git a/data/templates/frr/isis.frr.tmpl b/data/templates/frr/isis.frr.tmpl
index 1e651898b..3b6432a4f 100644
--- a/data/templates/frr/isis.frr.tmpl
+++ b/data/templates/frr/isis.frr.tmpl
@@ -116,18 +116,33 @@ router isis VyOS {{ 'vrf ' + vrf if vrf is defined and vrf is not none }}
 {%     endfor %}
 {%   endfor %}
 {% endif %}
-{% if redistribute is defined and redistribute.ipv4 is defined and redistribute.ipv4 is not none %}
-{%   for protocol in redistribute.ipv4 %}
-{%     for level, level_config in redistribute.ipv4[protocol].items() %}
-{%       if level_config.metric is defined and level_config.metric is not none %}
+{% if redistribute is defined %} 
+{%   if redistribute.ipv4 is defined and redistribute.ipv4 is not none %}
+{%     for protocol, protocol_options in redistribute.ipv4.items() %}
+{%       for level, level_config in redistribute.ipv4.protocol.items() %}
+{%         if level_config.metric is defined and level_config.metric is not none %}
  redistribute ipv4 {{ protocol }} {{ level | replace('_', '-') }} metric {{ level_config.metric }}
-{%       elif level_config.route_map is defined and level_config.route_map is not none %}
+{%         elif level_config.route_map is defined and level_config.route_map is not none %}
  redistribute ipv4 {{ protocol }} {{ level | replace('_', '-') }} route-map {{ level_config.route_map }}
-{%       else %}
+{%         else %}
  redistribute ipv4 {{ protocol }} {{ level | replace('_', '-') }}
-{%       endif %}
+{%         endif %}
+{%       endfor %}
 {%     endfor %}
-{%   endfor %}
+{%   endif %}
+{%   if redistribute.ipv6 is defined and redistribute.ipv6 is not none %}
+{%     for protocol, protocol_options in redistribute.ipv6.items() %}
+{%       for level, level_config in redistribute.ipv6.protocol.items() %}
+{%         if level_config.metric is defined and level_config.metric is not none %}
+ redistribute ipv6 {{ protocol }} {{ level | replace('_', '-') }} metric {{ level_config.metric }}
+{%         elif level_config.route_map is defined and level_config.route_map is not none %}
+ redistribute ipv6 {{ protocol }} {{ level | replace('_', '-') }} route-map {{ level_config.route_map }}
+{%         else %}
+ redistribute ipv6 {{ protocol }} {{ level | replace('_', '-') }}
+{%         endif %}
+{%       endfor %}
+{%     endfor %}
+{%   endif %}
 {% endif %}
 {% if level is defined and level is not none %}
 {%   if level == 'level-2'  %}
@@ -180,4 +195,4 @@ interface {{ iface }} {{ 'vrf ' + vrf if vrf is defined and vrf is not none }}
 {%     endif %}
 {%   endfor %}
 {% endif %}
-!
+!
\ No newline at end of file
diff --git a/interface-definitions/include/isis/protocol-common-config.xml.i b/interface-definitions/include/isis/protocol-common-config.xml.i
index 831d12694..af5a21f49 100644
--- a/interface-definitions/include/isis/protocol-common-config.xml.i
+++ b/interface-definitions/include/isis/protocol-common-config.xml.i
@@ -492,6 +492,61 @@
         </node>
       </children>
     </node>
+    <node name="ipv6">
+      <properties>
+        <help>Redistribute IPv6 routes</help>
+      </properties>
+      <children>
+        <node name="bgp">
+          <properties>
+            <help>Redistribute BGP routes into IS-IS</help>
+          </properties>
+          <children>
+            #include <include/isis/redistribute-ipv6.xml.i>
+          </children>
+        </node>
+        <node name="connected">
+          <properties>
+            <help>Redistribute connected routes into IS-IS</help>
+          </properties>
+          <children>
+            #include <include/isis/redistribute-ipv6.xml.i>
+          </children>
+        </node>
+        <node name="kernel">
+          <properties>
+            <help>Redistribute kernel routes into IS-IS</help>
+          </properties>
+          <children>
+            #include <include/isis/redistribute-ipv6.xml.i>
+          </children>
+        </node>
+        <node name="ospf6">
+          <properties>
+            <help>Redistribute OSPFv3 routes into IS-IS</help>
+          </properties>
+          <children>
+            #include <include/isis/redistribute-ipv6.xml.i>
+          </children>
+        </node>
+        <node name="ripng">
+          <properties>
+            <help>Redistribute RIPng routes into IS-IS</help>
+          </properties>
+          <children>
+            #include <include/isis/redistribute-ipv6.xml.i>
+          </children>
+        </node>
+        <node name="static">
+          <properties>
+            <help>Redistribute static routes into IS-IS</help>
+          </properties>
+          <children>
+            #include <include/isis/redistribute-ipv6.xml.i>
+          </children>
+        </node>
+      </children>
+    </node>
   </children>
 </node>
 <leafNode name="set-attached-bit">
@@ -711,4 +766,4 @@
   </children>
 </tagNode>
 #include <include/route-map.xml.i>
-<!-- include end -->
+<!-- include end -->
\ No newline at end of file
diff --git a/interface-definitions/include/isis/redistribute-ipv6.xml.i b/interface-definitions/include/isis/redistribute-ipv6.xml.i
new file mode 100644
index 000000000..7e679e38a
--- /dev/null
+++ b/interface-definitions/include/isis/redistribute-ipv6.xml.i
@@ -0,0 +1,42 @@
+<!-- include start from isis/redistribute-ipv6.xml.i -->
+<node name="level-1">
+  <properties>
+    <help>Redistribute into level-1</help>
+  </properties>
+  <children>
+    <leafNode name="metric">
+      <properties>
+        <help>Metric for redistributed routes</help>
+        <valueHelp>
+          <format>u32:0-16777215</format>
+          <description>ISIS default metric</description>
+        </valueHelp>
+        <constraint>
+          <validator name="numeric" argument="--range 0-16777215"/>
+        </constraint>
+      </properties>
+    </leafNode>
+    #include <include/route-map.xml.i>
+  </children>
+</node>
+<node name="level-2">
+  <properties>
+    <help>Redistribute into level-2</help>
+  </properties>
+  <children>
+    <leafNode name="metric">
+      <properties>
+        <help>Metric for redistributed routes</help>
+        <valueHelp>
+          <format>u32:0-16777215</format>
+          <description>ISIS default metric</description>
+        </valueHelp>
+        <constraint>
+          <validator name="numeric" argument="--range 0-16777215"/>
+        </constraint>
+      </properties>
+    </leafNode>
+    #include <include/route-map.xml.i>
+  </children>
+</node>
+<!-- include end -->
\ No newline at end of file
diff --git a/src/conf_mode/protocols_isis.py b/src/conf_mode/protocols_isis.py
index 50c48db28..254e62ec0 100755
--- a/src/conf_mode/protocols_isis.py
+++ b/src/conf_mode/protocols_isis.py
@@ -149,7 +149,7 @@ def verify(isis):
     # If Redistribute set, but level don't set
     if 'redistribute' in isis:
         proc_level = isis.get('level','').replace('-','_')
-        for afi in ['ipv4']:
+        for afi in ['ipv4', 'ipv6']:
             if afi not in isis['redistribute']:
                 continue
 
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