zebra: convert interface ipv6 nd home-agent-lifetime command to NB

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>

yang/frr-zebra.yang

@@ -2458,6 +2458,15 @@ module frr-zebra {
           reference
             "RFC 6275: Mobility Support in IPv6";
         }
+        leaf home-agent-lifetime {
+          type uint16;
+          description
+            "The value to be placed in the Home Agent Lifetime
+            field in the Router Advertisement messages sent by the
+            router.";
+          reference
+            "RFC 6275: Mobility Support in IPv6";
+        }
       }
       container state {
         config false;

zebra/rtadv.c

@@ -1698,36 +1698,24 @@ DEFPY_YANG (ipv6_nd_homeagent_preference,
 	return nb_cli_apply_changes(vty, NULL);
 }
 
-DEFUN (ipv6_nd_homeagent_lifetime,
+DEFPY_YANG (ipv6_nd_homeagent_lifetime,
        ipv6_nd_homeagent_lifetime_cmd,
-       "ipv6 nd home-agent-lifetime (0-65520)",
+       "[no] ipv6 nd home-agent-lifetime ![(1-65520)$lifetime]",
-       "Interface IPv6 config commands\n"
-       "Neighbor discovery\n"
-       "Home Agent lifetime\n"
-       "Home Agent lifetime in seconds (0 to track ra-lifetime)\n")
-{
-	int idx_number = 3;
-	VTY_DECLVAR_CONTEXT(interface, ifp);
-	struct zebra_if *zif = ifp->info;
-	zif->rtadv.HomeAgentLifetime = strtoul(argv[idx_number]->arg, NULL, 10);
-	return CMD_SUCCESS;
-}
-
-DEFUN (no_ipv6_nd_homeagent_lifetime,
-       no_ipv6_nd_homeagent_lifetime_cmd,
-       "no ipv6 nd home-agent-lifetime [(0-65520)]",
        NO_STR
        "Interface IPv6 config commands\n"
        "Neighbor discovery\n"
        "Home Agent lifetime\n"
-       "Home Agent lifetime in seconds (0 to track ra-lifetime)\n")
+       "Home Agent lifetime in seconds\n")
 {
-	VTY_DECLVAR_CONTEXT(interface, ifp);
+	if (!no)
-	struct zebra_if *zif = ifp->info;
+		nb_cli_enqueue_change(vty,
-
+				      "./frr-zebra:zebra/ipv6-router-advertisements/home-agent-lifetime",
-	zif->rtadv.HomeAgentLifetime = -1;
+				      NB_OP_MODIFY, lifetime_str);
-
+	else
-	return CMD_SUCCESS;
+		nb_cli_enqueue_change(vty,
+				      "./frr-zebra:zebra/ipv6-router-advertisements/home-agent-lifetime",
+				      NB_OP_DESTROY, NULL);
+	return nb_cli_apply_changes(vty, NULL);
 }
 
 DEFPY_YANG (ipv6_nd_managed_config_flag,
@@ -2662,7 +2650,6 @@ void rtadv_cmd_init(void)
 	install_element(INTERFACE_NODE, &ipv6_nd_homeagent_config_flag_cmd);
 	install_element(INTERFACE_NODE, &ipv6_nd_homeagent_preference_cmd);
 	install_element(INTERFACE_NODE, &ipv6_nd_homeagent_lifetime_cmd);
-	install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_lifetime_cmd);
 	install_element(INTERFACE_NODE, &ipv6_nd_adv_interval_config_option_cmd);
 	install_element(INTERFACE_NODE, &ipv6_nd_prefix_cmd);
 	install_element(INTERFACE_NODE, &no_ipv6_nd_prefix_cmd);

zebra/zebra_nb.c

@@ -627,6 +627,13 @@ const struct frr_yang_module_info frr_zebra_info = {
 				.destroy = lib_interface_zebra_ipv6_router_advertisements_home_agent_preference_destroy,
 			}
 		},
+		{
+			.xpath = "/frr-interface:lib/interface/frr-zebra:zebra/ipv6-router-advertisements/home-agent-lifetime",
+			.cbs = {
+				.modify = lib_interface_zebra_ipv6_router_advertisements_home_agent_lifetime_modify,
+				.destroy = lib_interface_zebra_ipv6_router_advertisements_home_agent_lifetime_destroy,
+			}
+		},
 		{
 			.xpath = "/frr-interface:lib/interface/frr-zebra:zebra/state/up-count",
 			.cbs = {

zebra/zebra_nb.h

@@ -213,6 +213,10 @@ int lib_interface_zebra_ipv6_router_advertisements_home_agent_preference_modify(
 	struct nb_cb_modify_args *args);
 int lib_interface_zebra_ipv6_router_advertisements_home_agent_preference_destroy(
 	struct nb_cb_destroy_args *args);
+int lib_interface_zebra_ipv6_router_advertisements_home_agent_lifetime_modify(
+	struct nb_cb_modify_args *args);
+int lib_interface_zebra_ipv6_router_advertisements_home_agent_lifetime_destroy(
+	struct nb_cb_destroy_args *args);
 struct yang_data *
 lib_interface_zebra_state_up_count_get_elem(struct nb_cb_get_elem_args *args);
 struct yang_data *

zebra/zebra_nb_config.c

@@ -2806,6 +2806,46 @@ int lib_interface_zebra_ipv6_router_advertisements_home_agent_preference_destroy
 	return NB_OK;
 }
 
+/*
+ * XPath: /frr-interface:lib/interface/frr-zebra:zebra/ipv6-router-advertisements/home-agent-lifetime
+ */
+int lib_interface_zebra_ipv6_router_advertisements_home_agent_lifetime_modify(
+	struct nb_cb_modify_args *args)
+{
+	struct interface *ifp;
+	struct zebra_if *zif;
+	uint16_t lifetime;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	ifp = nb_running_get_entry(args->dnode, NULL, true);
+	zif = ifp->info;
+
+	lifetime = yang_dnode_get_uint16(args->dnode, NULL);
+
+	zif->rtadv.HomeAgentLifetime = lifetime;
+
+	return NB_OK;
+}
+
+int lib_interface_zebra_ipv6_router_advertisements_home_agent_lifetime_destroy(
+	struct nb_cb_destroy_args *args)
+{
+	struct interface *ifp;
+	struct zebra_if *zif;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	ifp = nb_running_get_entry(args->dnode, NULL, true);
+	zif = ifp->info;
+
+	zif->rtadv.HomeAgentLifetime = -1;
+
+	return NB_OK;
+}
+
 /*
  * XPath: /frr-vrf:lib/vrf/frr-zebra:zebra/l3vni-id
  */