T5150: initial implementation of new Kernel/Zebra route-map support

It is possible to install a route-map which filters the routes between routing
daemons and the OS kernel (zebra)

As of now this can be done by e.g.
* set protocols ospf route-map foo
* set protocols ospfv3 route-map foo
* set protocols bgp route-map foo

Which in turn will install the following lines into FRR
* ip protocol ospf route-map foo
* ipv6 protocol ospf6 route-map foo
* ip protocol bgp route-map foo

The current state of the VyOS CLI is incomplete as there is no way to:
* Install a filter for BGP IPv6 routes
* Install a filter for static routes
* Install a filter for connected routes

Thus the CLI should be redesigned to close match what FRR does for both the
default and any other VRF

* set system ip protocol ospf route-map foo
* set system ipv6 protocol ospfv3 route-map foo
* set system ip protocol bgp route-map foo
* set system ipv6 protocol bgp route-map foo

The configuration can be migrated accordingly. This commit does not come with
the migrator, it will be comitted later.

5 files changed, 112 insertions, 0 deletions

diff --git a/interface-definitions/include/system-ip-protocol.xml.i b/interface-definitions/include/system-ip-protocol.xml.i
new file mode 100644
index 000000000..c630eb3f7
--- /dev/null
+++ b/interface-definitions/include/system-ip-protocol.xml.i
@@ -0,0 +1,56 @@
+<!-- include start from system-ip-protocol.xml.i -->
+<tagNode name="protocol">
+  <properties>
+    <help>Filter routing info exchanged between routing protocol and zebra</help>
+    <completionHelp>
+      <list>any babel bgp connected eigrp isis kernel ospf rip static table</list>
+    </completionHelp>
+    <valueHelp>
+      <format>any</format>
+      <description>Any of the above protocols</description>
+    </valueHelp>
+    <valueHelp>
+      <format>babel</format>
+      <description>Babel routing protocol</description>
+    </valueHelp>
+    <valueHelp>
+      <format>bgp</format>
+      <description>Border Gateway Protocol</description>
+    </valueHelp>
+    <valueHelp>
+      <format>connected</format>
+      <description>Connected routes (directly attached subnet or host)</description>
+    </valueHelp>
+    <valueHelp>
+      <format>eigrp</format>
+      <description>Enhanced Interior Gateway Routing Protocol</description>
+    </valueHelp>
+    <valueHelp>
+      <format>isis</format>
+      <description>Intermediate System to Intermediate System</description>
+    </valueHelp>
+    <valueHelp>
+      <format>kernel</format>
+      <description>Kernel routes (not installed via the zebra RIB)</description>
+    </valueHelp>
+    <valueHelp>
+      <format>ospf</format>
+      <description>Open Shortest Path First (OSPFv2)</description>
+    </valueHelp>
+    <valueHelp>
+      <format>rip</format>
+      <description>Routing Information Protocol</description>
+    </valueHelp>
+    <valueHelp>
+      <format>static</format>
+      <description>Statically configured routes</description>
+    </valueHelp>
+    <constraint>
+      <regex>(any|babel|bgp|connected|eigrp|isis|kernel|ospf|rip|static|table)</regex>
+    </constraint>
+  </properties>
+  <children>
+    #include <include/route-map.xml.i>
+  </children>
+</tagNode>
+<!-- include end -->
\ No newline at end of file
diff --git a/interface-definitions/include/system-ipv6-protocol.xml.i b/interface-definitions/include/system-ipv6-protocol.xml.i
new file mode 100644
index 000000000..485776a71
--- /dev/null
+++ b/interface-definitions/include/system-ipv6-protocol.xml.i
@@ -0,0 +1,52 @@
+<!-- include start from system-ipv6-protocol.xml.i -->
+<tagNode name="protocol">
+  <properties>
+    <help>Filter routing info exchanged between routing protocol and zebra</help>
+    <completionHelp>
+      <list>any babel bgp connected isis kernel ospfv3 ripng static table</list>
+    </completionHelp>
+    <valueHelp>
+      <format>any</format>
+      <description>Any of the above protocols</description>
+    </valueHelp>
+    <valueHelp>
+      <format>babel</format>
+      <description>Babel routing protocol</description>
+    </valueHelp>
+    <valueHelp>
+      <format>bgp</format>
+      <description>Border Gateway Protocol</description>
+    </valueHelp>
+    <valueHelp>
+      <format>connected</format>
+      <description>Connected routes (directly attached subnet or host)</description>
+    </valueHelp>
+    <valueHelp>
+      <format>isis</format>
+      <description>Intermediate System to Intermediate System</description>
+    </valueHelp>
+    <valueHelp>
+      <format>kernel</format>
+      <description>Kernel routes (not installed via the zebra RIB)</description>
+    </valueHelp>
+    <valueHelp>
+      <format>ospfv3</format>
+      <description>Open Shortest Path First (OSPFv3)</description>
+    </valueHelp>
+    <valueHelp>
+      <format>ripng</format>
+      <description>Routing Information Protocol next-generation</description>
+    </valueHelp>
+    <valueHelp>
+      <format>static</format>
+      <description>Statically configured routes</description>
+    </valueHelp>
+    <constraint>
+      <regex>(any|babel|bgp|connected|isis|kernel|ospfv3|ripng|static|table)</regex>
+    </constraint>
+  </properties>
+  <children>
+    #include <include/route-map.xml.i>
+  </children>
+</tagNode>
+<!-- include end -->
diff --git a/interface-definitions/system-ip.xml.in b/interface-definitions/system-ip.xml.in
index e00dbf252..abdede979 100644
--- a/interface-definitions/system-ip.xml.in
+++ b/interface-definitions/system-ip.xml.in
@@ -48,6 +48,7 @@
               </leafNode>
             </children>
           </node>
+          #include <include/system-ip-protocol.xml.i>
         </children>
       </node>
     </children>
diff --git a/interface-definitions/system-ipv6.xml.in b/interface-definitions/system-ipv6.xml.in
index 63260d00c..e17e1c01c 100644
--- a/interface-definitions/system-ipv6.xml.in
+++ b/interface-definitions/system-ipv6.xml.in
@@ -36,6 +36,7 @@
               #include <include/arp-ndp-table-size.xml.i>
             </children>
           </node>
+          #include <include/system-ipv6-protocol.xml.i>
           <leafNode name="strict-dad">
             <properties>
               <help>Disable IPv6 operation on interface when DAD fails on LL addr</help>
diff --git a/interface-definitions/vrf.xml.in b/interface-definitions/vrf.xml.in
index 96c6d8be2..028b31f7b 100644
--- a/interface-definitions/vrf.xml.in
+++ b/interface-definitions/vrf.xml.in
@@ -34,6 +34,7 @@
             </properties>
             <children>
               #include <include/interface/disable-forwarding.xml.i>
+              #include <include/system-ip-protocol.xml.i>
             </children>
           </node>
           <node name="ipv6">
@@ -42,6 +43,7 @@
             </properties>
             <children>
               #include <include/interface/disable-forwarding.xml.i>
+              #include <include/system-ipv6-protocol.xml.i>
             </children>
           </node>
           <node name="protocols">