staticd : northbound backend code

basic routing northbound callbacks
vrf northbound callbacks
staticd northbound callbacks
tag, distance, tableid is the property of route

Signed-off-by: VishalDhingra <vdhingra@vmware.com>

lib/routing_nb.c

@@ -0,0 +1,65 @@
+#include "northbound.h"
+#include "libfrr.h"
+#include "vrf.h"
+#include "routing_nb.h"
+
+
+static int lib_routing_cp_create(enum nb_event event,
+				 const struct lyd_node *dnode,
+				 union nb_resource *resource)
+{
+	struct vrf *vrf;
+	const char *vrfname;
+
+	switch (event) {
+		case NB_EV_VALIDATE:
+			vrfname = yang_dnode_get_string(dnode, "./vrf");
+			vrf = vrf_lookup_by_name(vrfname);
+			if (!vrf) {
+				zlog_warn(
+					"vrf is not configured\n");
+				return NB_ERR_VALIDATION;
+			}
+
+			break;
+		case NB_EV_PREPARE:
+		case NB_EV_ABORT:
+			break;
+		case NB_EV_APPLY:
+			vrfname = yang_dnode_get_string(dnode, "./vrf");
+			vrf = vrf_lookup_by_name(vrfname);
+			nb_running_set_entry(dnode, vrf);
+			break;
+	};
+
+	return NB_OK;
+}
+
+static int lib_routing_cp_destroy(enum nb_event event,
+				  const struct lyd_node *dnode)
+{
+	struct vrf *vrf;
+
+	if (event != NB_EV_APPLY)
+		return NB_OK;
+
+	vrf = nb_running_unset_entry(dnode);
+	(void)vrf;
+	return NB_OK;
+}
+
+const struct frr_yang_module_info frr_routing_info = {
+	.name = "frr-routing",
+	.nodes = {
+		{
+			.xpath = FRR_ROUTING_XPATH,
+			.cbs = {
+				.create = lib_routing_cp_create,
+				.destroy = lib_routing_cp_destroy,
+			},
+		},
+		{
+			.xpath = NULL,
+		},
+	}
+};

lib/routing_nb.h

@@ -0,0 +1,17 @@
+#ifndef _FRR_ROUTING_NB_H_
+#define _FRR_ROUTING_NB_H_
+
+
+#define FRR_ROUTING_XPATH \
+	"/frr-routing:routing/control-plane-protocols/control-plane-protocol"
+
+#define FRR_ROUTING_KEY_XPATH \
+	"/frr-routing:routing/control-plane-protocols/control-plane-protocol[type='%s'][name='%s'][vrf='%s']"
+
+extern const struct frr_yang_module_info frr_routing_info;
+
+/* Mandatory callbacks. */
+
+
+
+#endif /* _FRR_ROUTING_NB_H_ */

lib/subdir.am

@@ -103,6 +103,7 @@ lib_libfrr_la_SOURCES = \
 	lib/printf/printf-pos.c \
 	lib/printf/vfprintf.c \
 	lib/printf/glue.c \
+	lib/routing_nb.c \
 	# end
 
 nodist_lib_libfrr_la_SOURCES = \
@@ -112,6 +113,7 @@ nodist_lib_libfrr_la_SOURCES = \
 	yang/frr-route-types.yang.c \
 	yang/frr-vrf.yang.c \
 	yang/frr-routing.yang.c \
+	yang/frr-nexthop.yang.c \
 	yang/ietf/ietf-routing-types.yang.c \
 	yang/frr-module-translator.yang.c \
 	# end
@@ -257,6 +259,7 @@ pkginclude_HEADERS += \
 	lib/zclient.h \
 	lib/zebra.h \
 	lib/pbr.h \
+	lib/routing_nb.h \
 	# end
 
 

lib/yang.c

@@ -689,3 +689,24 @@ void yang_terminate(void)
 
 	ly_ctx_destroy(ly_native_ctx, NULL);
 }
+
+const struct lyd_node *yang_dnode_get_pleaf(const struct lyd_node *dnode,
+					    const char *lname)
+{
+	const struct lyd_node *orig_dnode = dnode;
+
+	while (orig_dnode) {
+		switch (orig_dnode->schema->nodetype) {
+			case LYS_LIST:
+				if(!strcmp(orig_dnode->schema->name, lname))
+					return orig_dnode;
+				break;
+			default:
+				break;
+		}
+
+		orig_dnode = orig_dnode->parent;
+	}
+
+	return NULL;
+}

lib/yang.h

@@ -34,7 +34,7 @@ extern "C" {
 #endif
 
 /* Maximum XPath length. */
-#define XPATH_MAXLEN 256
+#define XPATH_MAXLEN 1024
 
 /* Maximum list key length. */
 #define LIST_MAXKEYS 8
@@ -505,6 +505,9 @@ extern void yang_init(void);
  */
 extern void yang_terminate(void);
 
+extern const struct lyd_node *yang_dnode_get_pleaf(const struct lyd_node *dnode,
+						   const char *lname);
+
 #ifdef __cplusplus
 }
 #endif

staticd/static_main.c

@@ -31,12 +31,14 @@
 #include "vrf.h"
 #include "nexthop.h"
 #include "filter.h"
+#include "routing_nb.h"
 
 #include "static_vrf.h"
 #include "static_vty.h"
 #include "static_routes.h"
 #include "static_zebra.h"
 #include "static_debug.h"
+#include "static_nb.h"
 
 char backup_config_file[256];
 
@@ -104,7 +106,10 @@ struct quagga_signal_t static_signals[] = {
 };
 
 static const struct frr_yang_module_info *const staticd_yang_modules[] = {
+	&frr_interface_info,
 	&frr_vrf_info,
+	&frr_routing_info,
+	&frr_staticd_info,
 };
 
 #define STATIC_VTY_PORT 2616

staticd/static_memory.c

@@ -26,3 +26,5 @@
 DEFINE_MGROUP(STATIC, "staticd")
 
 DEFINE_MTYPE(STATIC, STATIC_ROUTE, "Static Route");
+
+DEFINE_MTYPE(STATIC, STATIC_ROUTE_INFO, "Static Route Info");

staticd/static_memory.h

@@ -24,5 +24,6 @@
 DECLARE_MGROUP(STATIC)
 
 DECLARE_MTYPE(STATIC_ROUTE);
+DECLARE_MTYPE(STATIC_ROUTE_INFO);
 
 #endif