Merge pull request FRRouting#18349 from donaldsharp/more_yang_state

More yang state

Author: riw777

tests/topotests/zebra_operational_data/test_zebra_operational.py

@@ -56,6 +56,51 @@ def test_zebra_operationalr(tgen):
     logger.info("Ensuring that the max-multipath value is returned")
     assert "max-multipath" in output["frr-zebra:zebra"].keys()
 
+    logger.info("Checking IP forwarding states")
+    state = output["frr-zebra:zebra"]["state"]
+    assert "ip-forwarding" in state.keys(), "IPv4 forwarding state not found"
+    assert "ipv6-forwarding" in state.keys(), "IPv6 forwarding state not found"
+    assert "mpls-forwarding" in state.keys(), "MPLS forwarding state not found"
+
+    # Verify the values are boolean
+    assert isinstance(
+        state["ip-forwarding"], bool
+    ), "IPv4 forwarding state should be boolean"
+    assert isinstance(
+        state["ipv6-forwarding"], bool
+    ), "IPv6 forwarding state should be boolean"
+    assert isinstance(
+        state["mpls-forwarding"], bool
+    ), "MPLS forwarding state should be boolean"
+
+    # Test IPv6 forwarding state change
+    logger.info("Testing IPv6 forwarding state change")
+    # Store initial state
+    initial_ipv6_state = state["ipv6-forwarding"]
+
+    # Turn off IPv6 forwarding
+    r1.vtysh_cmd("configure terminal\nno ipv6 forwarding\nexit")
+
+    # Get updated state
+    output = json.loads(r1.vtysh_cmd("show mgmt get-data /frr-zebra:zebra"))
+    new_state = output["frr-zebra:zebra"]["state"]
+
+    # Verify IPv6 forwarding is now off
+    assert (
+        new_state["ipv6-forwarding"] is False
+    ), "IPv6 forwarding should be False after disabling"
+
+    # Restore original state if it was enabled
+    if initial_ipv6_state:
+        r1.vtysh_cmd("configure terminal\nipv6 forwarding\nexit")
+
+        # Verify state is restored
+        output = json.loads(r1.vtysh_cmd("show mgmt get-data /frr-zebra:zebra"))
+        final_state = output["frr-zebra:zebra"]["state"]
+        assert (
+            final_state["ipv6-forwarding"] is True
+        ), "IPv6 forwarding should be restored to True"
+
 
 if __name__ == "__main__":
     # To suppress tracebacks, either use the following pytest call or add "--tb=no" to cli

yang/frr-zebra.yang

@@ -2961,6 +2961,11 @@ module frr-zebra {
         type boolean;
         description
           "IPv6 forwarding status.";
+      }
+      leaf mpls-forwarding {
+        type boolean;
+        description
+          "MPLS forwarding status.";
       }   
     }
     // End of operational / state container

zebra/zebra_nb.c

@@ -57,6 +57,12 @@ const struct frr_yang_module_info frr_zebra_info = {
 				.get_elem = zebra_ipv6_forwarding_get_elem,
 			}
 		},
+		{
+			.xpath = "/frr-zebra:zebra/state/mpls-forwarding",
+			.cbs = {
+				.get_elem = zebra_state_mpls_forwarding_get_elem,
+			}
+		},
 		{
 			.xpath = "/frr-zebra:zebra/workqueue-hold-timer",
 			.cbs = {

zebra/zebra_nb.h

@@ -37,6 +37,7 @@ int zebra_ipv6_forwarding_modify(struct nb_cb_modify_args *args);
 int zebra_ipv6_forwarding_destroy(struct nb_cb_destroy_args *args);
 int zebra_workqueue_hold_timer_modify(struct nb_cb_modify_args *args);
 struct yang_data *zebra_ipv6_forwarding_get_elem(struct nb_cb_get_elem_args *args);
+struct yang_data *zebra_state_mpls_forwarding_get_elem(struct nb_cb_get_elem_args *args);
 int zebra_zapi_packets_modify(struct nb_cb_modify_args *args);
 int zebra_import_kernel_table_table_id_modify(struct nb_cb_modify_args *args);
 int zebra_import_kernel_table_table_id_destroy(struct nb_cb_destroy_args *args);

zebra/zebra_nb_state.c

@@ -15,6 +15,7 @@
 #include "zebra/zebra_vxlan.h"
 #include "zebra/zebra_vxlan_if.h"
 #include "zebra/ipforward.h"
+#include "zebra/zebra_mpls.h"
 
 /*
  * XPath: /frr-interface:lib/interface/frr-zebra:zebra/state/up-count
@@ -1189,3 +1190,11 @@ struct yang_data *zebra_ipv6_forwarding_get_elem(struct nb_cb_get_elem_args *arg
 {
 	return yang_data_new_bool(args->xpath, ipforward_ipv6());
 }
+
+/*
+ * XPath: /frr-zebra:zebra/state/mpls-forwarding
+ */
+struct yang_data *zebra_state_mpls_forwarding_get_elem(struct nb_cb_get_elem_args *args)
+{
+	return yang_data_new_bool(args->xpath, mpls_enabled);
+}