staticd: Add Northbound APIs for SRv6

Add Northbound APIs to create/modify/destroy an SRv6 SID

Signed-off-by: Yuqing Zhao <galadriel.zyq@alibaba-inc.com>

3 files changed, 281 insertions, 0 deletions

diff --git a/staticd/static_nb.c b/staticd/static_nb.c
index e6aa71a77..356324126 100644
--- a/staticd/static_nb.c
+++ b/staticd/static_nb.c
@@ -225,6 +225,35 @@ const struct frr_yang_module_info frr_staticd_info = {
 			}
 		},
 		{
+			.xpath = "/frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6/static-sids/sid",
+			.cbs = {
+				.apply_finish = routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_apply_finish,
+				.create = routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_create,
+				.destroy = routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_destroy,
+			}
+		},
+		{
+			.xpath = "/frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6/static-sids/sid/behavior",
+			.cbs = {
+				.modify = routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_behavior_modify,
+				.destroy = routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_behavior_destroy,
+			}
+		},
+		{
+			.xpath = "/frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6/static-sids/sid/vrf-name",
+			.cbs = {
+				.modify = routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_vrf_name_modify,
+				.destroy = routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_vrf_name_destroy,
+			}
+		},
+		{
+			.xpath = "/frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6/static-sids/sid/locator-name",
+			.cbs = {
+				.modify = routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_locator_name_modify,
+				.destroy = routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_locator_name_destroy,
+			}
+		},
+		{
 			.xpath = NULL,
 		},
 	}
diff --git a/staticd/static_nb.h b/staticd/static_nb.h
index be75d9d38..9cf4126ba 100644
--- a/staticd/static_nb.h
+++ b/staticd/static_nb.h
@@ -118,6 +118,34 @@ int routing_control_plane_protocols_control_plane_protocol_staticd_route_list_sr
 	struct nb_cb_modify_args *args);
 int routing_control_plane_protocols_control_plane_protocol_staticd_route_list_src_list_path_list_frr_nexthops_nexthop_mpls_label_stack_entry_traffic_class_destroy(
 	struct nb_cb_destroy_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_create(
+	struct nb_cb_create_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_destroy(
+	struct nb_cb_destroy_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_create(
+	struct nb_cb_create_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_destroy(
+	struct nb_cb_destroy_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_create(
+	struct nb_cb_create_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_destroy(
+	struct nb_cb_destroy_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_create(
+	struct nb_cb_create_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_destroy(
+	struct nb_cb_destroy_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_behavior_modify(
+	struct nb_cb_modify_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_behavior_destroy(
+	struct nb_cb_destroy_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_vrf_name_modify(
+	struct nb_cb_modify_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_vrf_name_destroy(
+	struct nb_cb_destroy_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_locator_name_modify(
+	struct nb_cb_modify_args *args);
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_locator_name_destroy(
+	struct nb_cb_destroy_args *args);
 
 /* Optional 'apply_finish' callbacks. */
 
@@ -125,6 +153,8 @@ void routing_control_plane_protocols_control_plane_protocol_staticd_route_list_p
 	struct nb_cb_apply_finish_args *args);
 void routing_control_plane_protocols_control_plane_protocol_staticd_route_list_src_list_path_list_frr_nexthops_nexthop_apply_finish(
 	struct nb_cb_apply_finish_args *args);
+void routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_apply_finish(
+	struct nb_cb_apply_finish_args *args);
 
 /* Optional 'pre_validate' callbacks. */
 int routing_control_plane_protocols_control_plane_protocol_staticd_route_list_path_list_frr_nexthops_nexthop_pre_validate(
diff --git a/staticd/static_nb_config.c b/staticd/static_nb_config.c
index 7de5f0474..51de05c2e 100644
--- a/staticd/static_nb_config.c
+++ b/staticd/static_nb_config.c
@@ -20,6 +20,9 @@
 #include "static_nb.h"
 #include "static_zebra.h"
 
+#include "static_srv6.h"
+#include "static_debug.h"
+
 
 static int static_path_list_create(struct nb_cb_create_args *args)
 {
@@ -1367,3 +1370,222 @@ int routing_control_plane_protocols_control_plane_protocol_staticd_route_list_sr
 
 	return NB_OK;
 }
+
+/*
+ * XPath:
+ * /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing
+ */
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_create(
+	struct nb_cb_create_args *args)
+{
+	return NB_OK;
+}
+
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_destroy(
+	struct nb_cb_destroy_args *args)
+{
+	return NB_OK;
+}
+
+/*
+ * XPath:
+ * /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6
+ */
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_create(
+	struct nb_cb_create_args *args)
+{
+	return NB_OK;
+}
+
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_destroy(
+	struct nb_cb_destroy_args *args)
+{
+	return NB_OK;
+}
+
+/*
+ * XPath:
+ * /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6/static-sids
+ */
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_create(
+	struct nb_cb_create_args *args)
+{
+	return NB_OK;
+}
+
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_destroy(
+	struct nb_cb_destroy_args *args)
+{
+	return NB_OK;
+}
+
+/*
+ * XPath:
+ * /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6/locators/locator/static-sids/sid
+ */
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_create(
+	struct nb_cb_create_args *args)
+{
+	struct static_srv6_sid *sid;
+	struct prefix_ipv6 sid_value;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	yang_dnode_get_ipv6p(&sid_value, args->dnode, "sid");
+	sid = static_srv6_sid_alloc(&sid_value);
+	nb_running_set_entry(args->dnode, sid);
+
+	return NB_OK;
+}
+
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_destroy(
+	struct nb_cb_destroy_args *args)
+{
+	struct static_srv6_sid *sid;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	sid = nb_running_unset_entry(args->dnode);
+	listnode_delete(srv6_sids, sid);
+	static_srv6_sid_del(sid);
+
+	return NB_OK;
+}
+
+void routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_apply_finish(
+	struct nb_cb_apply_finish_args *args)
+{
+	struct static_srv6_sid *sid;
+	struct static_srv6_locator *locator;
+
+	sid = nb_running_get_entry(args->dnode, NULL, true);
+
+	locator = static_srv6_locator_lookup(sid->locator_name);
+	if (!locator) {
+		DEBUGD(&static_dbg_srv6,
+		       "%s: Locator %s not found, trying to get locator information from zebra",
+		       __func__, sid->locator_name);
+		static_zebra_srv6_manager_get_locator(sid->locator_name);
+		listnode_add(srv6_sids, sid);
+		return;
+	}
+
+	sid->locator = locator;
+
+	listnode_add(srv6_sids, sid);
+	static_zebra_request_srv6_sid(sid);
+}
+
+/*
+ * XPath:
+ * /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6/locators/locator/static-sids/sid/behavior
+ */
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_behavior_modify(
+	struct nb_cb_modify_args *args)
+{
+	struct static_srv6_sid *sid;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	sid = nb_running_get_entry(args->dnode, NULL, true);
+
+	/* Release and uninstall existing SID, if any, before requesting the new one */
+	if (CHECK_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_VALID)) {
+		static_zebra_release_srv6_sid(sid);
+		UNSET_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_VALID);
+	}
+
+	if (CHECK_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_SENT_TO_ZEBRA)) {
+		static_zebra_srv6_sid_uninstall(sid);
+		UNSET_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_SENT_TO_ZEBRA);
+	}
+
+	sid->behavior = yang_dnode_get_enum(args->dnode, "../behavior");
+
+	return NB_OK;
+}
+
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_behavior_destroy(
+	struct nb_cb_destroy_args *args)
+{
+	return NB_OK;
+}
+
+/*
+ * XPath:
+ * /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6/locators/locator/static-sids/sid/vrf-name
+ */
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_vrf_name_modify(
+	struct nb_cb_modify_args *args)
+{
+	struct static_srv6_sid *sid;
+	const char *vrf_name;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	sid = nb_running_get_entry(args->dnode, NULL, true);
+
+	/* Release and uninstall existing SID, if any, before requesting the new one */
+	if (CHECK_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_VALID)) {
+		static_zebra_release_srv6_sid(sid);
+		UNSET_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_VALID);
+	}
+
+	if (CHECK_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_SENT_TO_ZEBRA)) {
+		static_zebra_srv6_sid_uninstall(sid);
+		UNSET_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_SENT_TO_ZEBRA);
+	}
+
+	vrf_name = yang_dnode_get_string(args->dnode, "../vrf-name");
+	snprintf(sid->attributes.vrf_name, sizeof(sid->attributes.vrf_name), "%s", vrf_name);
+
+	return NB_OK;
+}
+
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_vrf_name_destroy(
+	struct nb_cb_destroy_args *args)
+{
+	return NB_OK;
+}
+
+/*
+ * XPath:
+ * /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-staticd:staticd/segment-routing/srv6/locators/locator/static-sids/sid/vrf-name
+ */
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_locator_name_modify(
+	struct nb_cb_modify_args *args)
+{
+	struct static_srv6_sid *sid;
+	const char *loc_name;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	sid = nb_running_get_entry(args->dnode, NULL, true);
+
+	/* Release and uninstall existing SID, if any, before requesting the new one */
+	if (CHECK_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_VALID)) {
+		static_zebra_release_srv6_sid(sid);
+		UNSET_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_VALID);
+	}
+
+	if (CHECK_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_SENT_TO_ZEBRA)) {
+		static_zebra_srv6_sid_uninstall(sid);
+		UNSET_FLAG(sid->flags, STATIC_FLAG_SRV6_SID_SENT_TO_ZEBRA);
+	}
+
+	loc_name = yang_dnode_get_string(args->dnode, "../locator-name");
+	snprintf(sid->locator_name, sizeof(sid->locator_name), "%s", loc_name);
+
+	return NB_OK;
+}
+
+int routing_control_plane_protocols_control_plane_protocol_staticd_segment_routing_srv6_local_sids_sid_locator_name_destroy(
+	struct nb_cb_destroy_args *args)
+{
+	return NB_OK;
+}