bgp: T3759: add l3vpn "route-target vpn" commands

Add the following new commands:
* set protocols bgp address-family ipv4-unicast route-target vpn both 1.1.1.1:100
* set protocols bgp address-family ipv4-unicast route-target vpn export 1.1.1.1:100
* set protocols bgp address-family ipv4-unicast route-target vpn import 1.1.1.1:100

3 files changed, 40 insertions, 4 deletions

diff --git a/data/templates/frr/bgpd.frr.tmpl b/data/templates/frr/bgpd.frr.tmpl
index 51235e4cb..7adb007c8 100644
--- a/data/templates/frr/bgpd.frr.tmpl
+++ b/data/templates/frr/bgpd.frr.tmpl
@@ -357,14 +357,27 @@ router bgp {{ local_as }} {{ 'vrf ' ~ vrf if vrf is defined and vrf is not none
   rd vpn export {{ afi_config.rd.vpn.export }}
 {%     endif %}
 {%     if afi_config.route_target is defined and afi_config.route_target is not none %}
+{%       if afi_config.route_target.vpn is defined and afi_config.route_target.vpn is not none %}
+{%         if afi_config.route_target.vpn.both is defined and afi_config.route_target.vpn.both is not none %}
+  route-target vpn both {{ afi_config.route_target.vpn.both }}
+{%         else %}
+{%           if afi_config.route_target.vpn.export is defined and afi_config.route_target.vpn.export is not none %}
+  route-target vpn export {{ afi_config.route_target.vpn.export }}
+{%           endif %}
+{%           if afi_config.route_target.vpn.import is defined and afi_config.route_target.vpn.import is not none %}
+  route-target vpn import {{ afi_config.route_target.vpn.import }}
+{%           endif %}
+{%         endif %}
+{%       endif %}
 {%       if afi_config.route_target.both is defined and afi_config.route_target.both is not none %}
  route-target both {{ afi_config.route_target.both }}
-{%       endif %}
-{%       if afi_config.route_target.export is defined and afi_config.route_target.export is not none %}
+{%       else %}
+{%         if afi_config.route_target.export is defined and afi_config.route_target.export is not none %}
  route-target export {{ afi_config.route_target.export }}
-{%       endif %}
-{%       if afi_config.route_target.import is defined and afi_config.route_target.import is not none %}
+{%         endif %}
+{%         if afi_config.route_target.import is defined and afi_config.route_target.import is not none %}
  route-target import {{ afi_config.route_target.import }}
+{%         endif %}
 {%       endif %}
 {%     endif %}
 {%     if afi_config.vni is defined and afi_config.vni is not none %}
diff --git a/interface-definitions/include/bgp/protocol-common-config.xml.i b/interface-definitions/include/bgp/protocol-common-config.xml.i
index 53be8b553..6fb9adf93 100644
--- a/interface-definitions/include/bgp/protocol-common-config.xml.i
+++ b/interface-definitions/include/bgp/protocol-common-config.xml.i
@@ -118,6 +118,23 @@
           </children>
         </tagNode>
         #include <include/bgp/afi-rd.xml.i>
+        <node name="route-target">
+          <properties>
+            <help>Specify route distinguisher</help>
+          </properties>
+          <children>
+            <node name="vpn">
+              <properties>
+                <help>Between current address-family and VPN</help>
+              </properties>
+              <children>
+                #include <include/bgp/route-target-both.xml.i>
+                #include <include/bgp/route-target-export.xml.i>
+                #include <include/bgp/route-target-import.xml.i>
+              </children>
+            </node>
+          </children>
+        </node>
         <node name="redistribute">
           <properties>
             <help>Redistribute routes from other protocols into BGP</help>
diff --git a/smoketest/scripts/cli/test_protocols_bgp.py b/smoketest/scripts/cli/test_protocols_bgp.py
index 4149b0bdd..d1492e831 100755
--- a/smoketest/scripts/cli/test_protocols_bgp.py
+++ b/smoketest/scripts/cli/test_protocols_bgp.py
@@ -732,6 +732,8 @@ class TestProtocolsBGP(VyOSUnitTestSHIM.TestCase):
         vrf_name = 'red'
         label = 'auto'
         rd = f'{neighbor}:{ASN}'
+        rt_export = f'{neighbor}:1002'
+        rt_import = f'{neighbor}:1003'
 
         self.cli_set(base_path + ['local-as', ASN])
         # testing only one AFI is sufficient as it's generic code
@@ -741,6 +743,8 @@ class TestProtocolsBGP(VyOSUnitTestSHIM.TestCase):
             self.cli_set(base_path + ['address-family', afi, 'label', 'vpn', 'export', label])
 
         self.cli_set(base_path + ['address-family', 'ipv4-unicast', 'rd', 'vpn', 'export', rd])
+        self.cli_set(base_path + ['address-family', 'ipv4-unicast', 'route-target', 'vpn', 'export', rt_export])
+        self.cli_set(base_path + ['address-family', 'ipv4-unicast', 'route-target', 'vpn', 'import', rt_import])
 
         # commit changes
         self.cli_commit()
@@ -757,6 +761,8 @@ class TestProtocolsBGP(VyOSUnitTestSHIM.TestCase):
 
         self.assertIn(f' address-family ipv4 unicast', frrconfig)
         self.assertIn(f'  rd vpn export {rd}', frrconfig)
+        self.assertIn(f'  rt vpn export {rt_export}', frrconfig)
+        self.assertIn(f'  rt vpn import {rt_import}', frrconfig)
 
 if __name__ == '__main__':
     unittest.main(verbosity=2)
\ No newline at end of file