fix(stats): fix forwarder statistics retrieval

Ref: HICN-794
Signed-off-by: Enrico Loparco (eloparco) <eloparco@cisco.com>
Change-Id: I13162174f45855989727f92e96c11a1d48d710dd

22 files changed, 318 insertions, 220 deletions

diff --git a/ctrl/libhicnctrl/includes/CMakeLists.txt b/ctrl/libhicnctrl/includes/CMakeLists.txt
index 554021c48..63b8aa9a7 100644
--- a/ctrl/libhicnctrl/includes/CMakeLists.txt
+++ b/ctrl/libhicnctrl/includes/CMakeLists.txt
@@ -46,6 +46,7 @@ set(TO_INSTALL_HEADER_FILES
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn/ctrl/objects/policy.h
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn/ctrl/objects/punting.h
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn/ctrl/objects/route.h
+  ${CMAKE_CURRENT_SOURCE_DIR}/hicn/ctrl/objects/stats.h
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn/ctrl/objects/strategy.h
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn/ctrl/objects/subscription.h
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn/ctrl/parse.h
diff --git a/ctrl/libhicnctrl/includes/hicn/ctrl/api.h b/ctrl/libhicnctrl/includes/hicn/ctrl/api.h
index 21a5e548f..ad3f8fcc3 100644
--- a/ctrl/libhicnctrl/includes/hicn/ctrl/api.h
+++ b/ctrl/libhicnctrl/includes/hicn/ctrl/api.h
@@ -194,47 +194,17 @@ typedef struct hc_result_s hc_result_t;
 #define UNSUPPORTED_CMD_ERROR -3
 
 /*----------------------------------------------------------------------------*
- * Strategy
- *----------------------------------------------------------------------------*/
-
-/*----------------------------------------------------------------------------*
  * WLDR
  *----------------------------------------------------------------------------*/
 
 // per connection
 int hc_wldr_set(hc_sock_t *s /* XXX */);
 
-/*----------------------------------------------------------------------------*
- * MAP-Me
- *----------------------------------------------------------------------------*/
-
-/*----------------------------------------------------------------------------*
- * Policies
- *----------------------------------------------------------------------------*/
-
-/*----------------------------------------------------------------------------*
- * Subscription
- *----------------------------------------------------------------------------*/
-// Topics
-
-#if 0
-/* Result */
-
-hc_msg_t *hc_result_get_msg(hc_sock_t *s, hc_result_t *result);
-int hc_result_get_cmd_id(hc_sock_t *s, hc_result_t *result);
-bool hc_result_get_success(hc_sock_t *s, hc_result_t *result);
-void hc_result_free(hc_result_t *result);
-#endif
-
 /* Object */
 
-// FIXME
-#define MAXSZ_HC_SUBSCRIPTION 1
-
 #define MAXSZ_HC_OBJECT                                                       \
   MAX8(MAXSZ_HC_CONNECTION, MAXSZ_HC_LISTENER, MAXSZ_HC_ROUTE, MAXSZ_HC_FACE, \
-       MAXSZ_HC_PUNTING, MAXSZ_HC_STRATEGY, MAXSZ_HC_POLICY,                  \
-       MAXSZ_HC_SUBSCRIPTION)
+       MAXSZ_HC_PUNTING, MAXSZ_HC_STRATEGY, MAXSZ_HC_POLICY, MAXSZ_HC_STATS)
 
 typedef struct {
   hc_action_t action;
@@ -244,10 +214,6 @@ typedef struct {
 
 // NEW API CALLS
 
-// XXX private ?
-int _hc_execute(hc_sock_t *s, hc_action_t action, hc_object_type_t object_type,
-                hc_object_t *object, hc_result_callback_t callback,
-                void *callback_data, hc_data_t **pdata);
 int hc_execute(hc_sock_t *s, hc_action_t action, hc_object_type_t object_type,
                hc_object_t *object, hc_data_t **pdata);
 int hc_execute_async(hc_sock_t *s, hc_action_t action,
@@ -289,11 +255,6 @@ int hc_connection_set_priority(hc_sock_t *s, const char *conn_id_or_name,
 int hc_connection_set_tags(hc_sock_t *s, const char *conn_id_or_name,
                            policy_tags_t tags);
 
-/*
-int hc_connection_remove_by_id(hc_sock_t * s, char * name);
-int hc_connection_remove_by_name(hc_sock_t * s, char * name);
-*/
-
 int hc_connection_set_admin_state(hc_sock_t *s, const char *conn_id_or_name,
                                   face_state_t state);
 int hc_connection_set_priority(hc_sock_t *s, const char *conn_id_or_name,
@@ -357,8 +318,9 @@ int hc_punting_list(hc_sock_t *s, hc_data_t **pdata);
 int hc_subscription_create(hc_sock_t *s, hc_subscription_t *subscription);
 int hc_subscription_delete(hc_sock_t *s, hc_subscription_t *subscription);
 
-int hc_stats_get(hc_sock_t *s, hc_data_t **pdata);   // General stats
-int hc_stats_list(hc_sock_t *s, hc_data_t **pdata);  // Per-face stats
-int hc_stats_snprintf(char *s, size_t size, const hicn_light_stats_t *stats);
+int hc_stats_list(hc_sock_t *s, hc_data_t **pdata);
+int hc_stats_snprintf(char *s, size_t size, const hc_stats_t *stats);
+int hc_face_stats_list(hc_sock_t *s, hc_data_t **pdata);
+int hc_face_stats_snprintf(char *s, size_t size, const hc_face_stats_t *stats);
 
 #endif /* HICNTRL_API */
diff --git a/ctrl/libhicnctrl/includes/hicn/ctrl/hicn-light.h b/ctrl/libhicnctrl/includes/hicn/ctrl/hicn-light.h
index 34667cc1b..426b82fa9 100644
--- a/ctrl/libhicnctrl/includes/hicn/ctrl/hicn-light.h
+++ b/ctrl/libhicnctrl/includes/hicn/ctrl/hicn-light.h
@@ -91,8 +91,8 @@ typedef enum {
   _(active_interface_update, ACTIVE_INTERFACE_UPDATE)     \
   _(subscription_add, SUBSCRIPTION_ADD)                   \
   _(subscription_remove, SUBSCRIPTION_REMOVE)             \
-  _(stats_get, STATS_GET)                                 \
-  _(stats_list, STATS_LIST)
+  _(stats_list, STATS_LIST)                               \
+  _(face_stats_list, FACE_STATS_LIST)
 
 typedef enum {
   COMMAND_TYPE_UNDEFINED,
@@ -339,12 +339,12 @@ typedef struct {
 // General stats
 typedef struct {
   void *_;
-} cmd_stats_get_t;
+} cmd_stats_list_t;
 
 // Per-face stats
 typedef struct {
   void *_;
-} cmd_stats_list_t;
+} cmd_face_stats_list_t;
 
 typedef void *cmd_active_interface_update_t;
 
@@ -498,14 +498,9 @@ typedef struct {
 
 /* Statistics */
 
+// General stats
 typedef struct {
-  cmd_header_t header;
-  hicn_light_stats_t payload;
-} msg_stats_get_reply_t;
-
-typedef struct {
-  uint32_t id;
-  connection_stats_t stats;
+  hc_stats_t stats;
 } cmd_stats_list_item_t;
 
 typedef struct {
@@ -513,6 +508,16 @@ typedef struct {
   cmd_stats_list_item_t payload;
 } msg_stats_list_reply_t;
 
+// Per-face stats
+typedef struct {
+  hc_face_stats_t stats;
+} cmd_face_stats_list_item_t;
+
+typedef struct {
+  cmd_header_t header;
+  cmd_face_stats_list_item_t payload;
+} msg_face_stats_list_reply_t;
+
 //===== size of commands ======
 // REMINDER: when a new_command is added, the following switch has to be
 // updated.
diff --git a/ctrl/libhicnctrl/includes/hicn/ctrl/object.h b/ctrl/libhicnctrl/includes/hicn/ctrl/object.h
index c659d1824..74b88c515 100644
--- a/ctrl/libhicnctrl/includes/hicn/ctrl/object.h
+++ b/ctrl/libhicnctrl/includes/hicn/ctrl/object.h
@@ -22,17 +22,7 @@
 #define HICNCTRL_OBJECT_H
 
 #include <hicn/ctrl/object_type.h>
-
-#include <hicn/ctrl/objects/listener.h>
-#include <hicn/ctrl/objects/connection.h>
-#include <hicn/ctrl/objects/route.h>
-#include <hicn/ctrl/objects/punting.h>
-#include <hicn/ctrl/objects/strategy.h>
-#include <hicn/ctrl/objects/policy.h>
-#include <hicn/ctrl/objects/subscription.h>
-#include <hicn/ctrl/objects/cache.h>
-#include <hicn/ctrl/objects/mapme.h>
-#include <hicn/ctrl/objects/active_interface.h>
+#include <hicn/ctrl/objects.h>
 
 typedef union {
   hc_connection_t connection;
@@ -41,6 +31,8 @@ typedef union {
   hc_face_t face;
   // hc_data_t *data;
   hc_punting_t punting;
+  hc_stats_t stats;
+  hc_face_stats_t face_stats;
   hc_strategy_t strategy;
   hc_policy_t policy;
   hc_subscription_t subscription;
diff --git a/ctrl/libhicnctrl/includes/hicn/ctrl/object_type.h b/ctrl/libhicnctrl/includes/hicn/ctrl/object_type.h
index 39a2d188e..4c5a8c425 100644
--- a/ctrl/libhicnctrl/includes/hicn/ctrl/object_type.h
+++ b/ctrl/libhicnctrl/includes/hicn/ctrl/object_type.h
@@ -38,6 +38,7 @@
   _(SUBSCRIPTION)           \
   _(ACTIVE_INTERFACE)       \
   _(STATS)                  \
+  _(FACE_STATS)             \
   _(N)
 
 typedef enum {
diff --git a/ctrl/libhicnctrl/includes/hicn/ctrl/objects.h b/ctrl/libhicnctrl/includes/hicn/ctrl/objects.h
index 4f560a2f3..5509f99a8 100644
--- a/ctrl/libhicnctrl/includes/hicn/ctrl/objects.h
+++ b/ctrl/libhicnctrl/includes/hicn/ctrl/objects.h
@@ -5,7 +5,13 @@
 #include <hicn/ctrl/objects/face.h>
 #include <hicn/ctrl/objects/listener.h>
 #include <hicn/ctrl/objects/route.h>
+#include <hicn/ctrl/objects/punting.h>
+#include <hicn/ctrl/objects/stats.h>
 #include <hicn/ctrl/objects/strategy.h>
+#include <hicn/ctrl/objects/policy.h>
 #include <hicn/ctrl/objects/subscription.h>
+#include <hicn/ctrl/objects/cache.h>
+#include <hicn/ctrl/objects/mapme.h>
+#include <hicn/ctrl/objects/active_interface.h>
 
 #endif /* HICNCTRL_OBJECTS_H */
diff --git a/ctrl/libhicnctrl/includes/hicn/ctrl/objects/stats.h b/ctrl/libhicnctrl/includes/hicn/ctrl/objects/stats.h
new file mode 100644
index 000000000..31c590dee
--- /dev/null
+++ b/ctrl/libhicnctrl/includes/hicn/ctrl/objects/stats.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2021-2022 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file objects/stats.h
+ * \brief Stats.
+ */
+
+#ifndef HICNCTRL_OBJECTS_STATS_H
+#define HICNCTRL_OBJECTS_STATS_H
+
+#define MAXSZ_HC_STATS 600
+
+typedef hicn_light_stats_t hc_stats_t;
+typedef connection_stats_t hc_face_stats_t;
+
+#endif /* HICNCTRL_OBJECTS_STATS_H */
diff --git a/ctrl/libhicnctrl/src/CMakeLists.txt b/ctrl/libhicnctrl/src/CMakeLists.txt
index a9a7d3db4..5dbd70ffe 100644
--- a/ctrl/libhicnctrl/src/CMakeLists.txt
+++ b/ctrl/libhicnctrl/src/CMakeLists.txt
@@ -41,6 +41,7 @@ set(SOURCE_FILES
   objects/listener.c
   objects/route.c
   objects/strategy.c
+  objects/stats.c
   objects/subscription.c
   parse.c
   request.c
@@ -56,6 +57,7 @@ set(HEADER_FILES
   objects/face.h
   objects/listener.h
   objects/route.h
+  objects/stats.h
   objects/strategy.h
   objects/subscription.h
   request.h
@@ -114,6 +116,7 @@ if (${CMAKE_SYSTEM_NAME} MATCHES Android OR ${CMAKE_SYSTEM_NAME} MATCHES iOS)
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/face.c
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/listener.c
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/route.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/stats.c
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/strategy.c
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/subscription.c
   )
@@ -122,6 +125,7 @@ if (${CMAKE_SYSTEM_NAME} MATCHES Android OR ${CMAKE_SYSTEM_NAME} MATCHES iOS)
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/face.h
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/listener.h
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/route.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/stats.h
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/strategy.h
     ${CMAKE_CURRENT_SOURCE_DIR}/modules/hicn_light/subscription.h
   )
diff --git a/ctrl/libhicnctrl/src/commands/command_stats.c b/ctrl/libhicnctrl/src/commands/command_stats.c
index 7c58b105e..f02a68069 100644
--- a/ctrl/libhicnctrl/src/commands/command_stats.c
+++ b/ctrl/libhicnctrl/src/commands/command_stats.c
@@ -3,16 +3,16 @@
 
 /* Commands */
 
-static const command_parser_t command_stats_get = {
-    .action = ACTION_GET,
+static const command_parser_t command_stats_list = {
+    .action = ACTION_LIST,
     .object_type = OBJECT_TYPE_STATS,
     .nparams = 0,
 };
-COMMAND_REGISTER(command_stats_get);
+COMMAND_REGISTER(command_stats_list);
 
-static const command_parser_t command_stats_list = {
+static const command_parser_t command_face_stats_list = {
     .action = ACTION_LIST,
-    .object_type = OBJECT_TYPE_STATS,
+    .object_type = OBJECT_TYPE_FACE_STATS,
     .nparams = 0,
 };
-COMMAND_REGISTER(command_stats_list);
+COMMAND_REGISTER(command_face_stats_list);
diff --git a/ctrl/libhicnctrl/src/modules/CMakeLists.txt b/ctrl/libhicnctrl/src/modules/CMakeLists.txt
index 682192c6c..b1b63a5f9 100644
--- a/ctrl/libhicnctrl/src/modules/CMakeLists.txt
+++ b/ctrl/libhicnctrl/src/modules/CMakeLists.txt
@@ -20,6 +20,7 @@ list(APPEND HICNLIGHT_MODULE_SOURCE_FILES
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/face.c
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/listener.c
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/route.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/stats.c
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/strategy.c
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/subscription.c
 )
@@ -30,6 +31,7 @@ list(APPEND HICNLIGHT_MODULE_HEADER_FILES
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/face.h
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/listener.h
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/route.h
+  ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/stats.h
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/strategy.h
   ${CMAKE_CURRENT_SOURCE_DIR}/hicn_light/subscription.h
   )
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light.c b/ctrl/libhicnctrl/src/modules/hicn_light.c
index 729d98f89..379cd2fa9 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light.c
+++ b/ctrl/libhicnctrl/src/modules/hicn_light.c
@@ -41,6 +41,7 @@
 #include "../objects/connection.h"  // hc_connection_has_local
 #include "../objects/listener.h"    // hc_listener_is_local
 #include "../objects/route.h"       // hc_route_has_face
+#include "../objects/stats.h"
 #include "../request.h"
 #include "../socket_private.h"
 #include "hicn_light.h"
@@ -50,6 +51,7 @@
 #include "hicn_light/listener.h"
 #include "hicn_light/face.h"
 #include "hicn_light/route.h"
+#include "hicn_light/stats.h"
 #include "hicn_light/strategy.h"
 #include "hicn_light/subscription.h"
 
@@ -1283,20 +1285,18 @@ static ssize_t hicnlight_prepare(hc_sock_t *sock, hc_request_t *request,
       break;
   }
 
-    /*
-     * Generic requests should complete after a single call to hicnlight_send,
-     * with *pdata = NULL. If *pdata is not NULL, that means the request has
-     * completed and we can close it.
-     * It is the responsability of each state machine to complete the request
-     * otherwise.
-     */
-#if 1
+  /*
+   * Generic requests should complete after a single call to hicnlight_send,
+   * with *pdata = NULL. If *pdata is not NULL, that means the request has
+   * completed and we can close it.
+   * It is the responsability of each state machine to complete the request
+   * otherwise.
+   */
   hc_data_t *data = hc_request_get_data(current_request);
   if (data) {
     hc_request_set_complete(current_request);
     return 0;
   }
-#endif
 
   return hicnlight_prepare_generic(sock, request, buffer);
 }
@@ -1391,7 +1391,6 @@ int hc_sock_initialize_module(hc_sock_t *s) {
    * We do this because initialization in the static struct fails with
    * 'initializer element is not constant'
    */
-#if 1
   hc_sock_light.object_vft[OBJECT_TYPE_LISTENER] =
       hicnlight_listener_module_ops;
   hc_sock_light.object_vft[OBJECT_TYPE_CONNECTION] =
@@ -1403,11 +1402,13 @@ int hc_sock_initialize_module(hc_sock_t *s) {
   hc_sock_light.object_vft[OBJECT_TYPE_WLDR] = HC_MODULE_OBJECT_OPS_EMPTY;
   hc_sock_light.object_vft[OBJECT_TYPE_POLICY] = HC_MODULE_OBJECT_OPS_EMPTY;
   hc_sock_light.object_vft[OBJECT_TYPE_ROUTE] = hicnlight_route_module_ops;
+  hc_sock_light.object_vft[OBJECT_TYPE_STATS] = hicnlight_stats_module_ops;
+  hc_sock_light.object_vft[OBJECT_TYPE_FACE_STATS] =
+      hicnlight_face_stats_module_ops;
   hc_sock_light.object_vft[OBJECT_TYPE_STRATEGY] =
       hicnlight_strategy_module_ops;
   hc_sock_light.object_vft[OBJECT_TYPE_SUBSCRIPTION] =
       hicnlight_subscription_module_ops;
-#endif
 
   if (s) s->ops = hc_sock_light;
   return 0;
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/base.h b/ctrl/libhicnctrl/src/modules/hicn_light/base.h
index fb6a68147..ea6fc1bc9 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/base.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/base.h
@@ -3,16 +3,13 @@
 
 #include <hicn/ctrl/hicn-light.h>
 
-#if 1
 #ifdef __APPLE__
 #define RANDBYTE() (u8)(arc4random() & 0xFF)
 #else
 #define RANDBYTE() (u8)(random() & 0xFF)
 #endif
-#else
-#define RANDBYTE() (u8)(rand() & 0xFF)
-#endif
 
+// TODO: is this used?
 #define foreach_hc_command     \
   _(connection_add)            \
   _(connection_remove)         \
@@ -36,14 +33,6 @@
   _(subscription_add)          \
   _(subscription_remove)
 
-#if 0
-const char *command_type_str[] = {
-#define _(l, u) [COMMAND_TYPE_##u] = STRINGIZE(u),
-    foreach_command_type
-#undef _
-};
-#endif
-
 typedef union {
 #define _(x) cmd_##x##_t x;
   foreach_hc_command
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/connection.h b/ctrl/libhicnctrl/src/modules/hicn_light/connection.h
index 77204e6b2..21f3a2fbc 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/connection.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/connection.h
@@ -6,22 +6,6 @@
 int hc_connection_to_local_listener(const hc_connection_t *connection,
                                     hc_listener_t *listener);
 
-#if 1
-
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, connection);
-// extern const hc_module_object_ops_t hicnlight_connection_module_ops;
-
-#else
-
-int _hicnlight_connection_parse(const uint8_t *buffer, size_t size,
-                                hc_object_t *object);
-
-int hicnlight_connection_serialize_create(const hc_object_t *object,
-                                          uint8_t *packet);
-int hicnlight_connection_serialize_delete(const hc_object_t *object,
-                                          uint8_t *packet);
-int hicnlight_connection_serialize_list(const hc_object_t *object,
-                                        uint8_t *packet);
 
-#endif
 #endif /* HICNCTRL_MODULE_HICNLIGHT_CONNECTION_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/listener.h b/ctrl/libhicnctrl/src/modules/hicn_light/listener.h
index 27ef8434d..67eadfbb1 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/listener.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/listener.h
@@ -3,19 +3,6 @@
 
 #include "../../module.h"
 
-#if 1
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, listener);
-#else
-
-int _hicnlight_listener_parse(const uint8_t *buffer, size_t size,
-                              hc_object_t *object);
-
-int hicnlight_listener_serialize_create(const hc_object_t *object,
-                                        uint8_t *packet);
-int hicnlight_listener_serialize_delete(const hc_object_t *object,
-                                        uint8_t *packet);
-int hicnlight_listener_serialize_list(const hc_object_t *object,
-                                      uint8_t *packet);
-#endif
 
 #endif /* HICNCTRL_MODULE_HICNLIGHT_LISTENER_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/route.h b/ctrl/libhicnctrl/src/modules/hicn_light/route.h
index e86e8b8c3..825253a42 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/route.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/route.h
@@ -23,20 +23,6 @@
 
 #include "../../module.h"
 
-#if 1
-
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, route);
 
-#else
-
-int _hicnlight_route_parse(const uint8_t *buffer, size_t size,
-                           hc_object_t *object);
-int hicnlight_route_serialize_create(const hc_object_t *object,
-                                     uint8_t *packet);
-int hicnlight_route_serialize_delete(const hc_object_t *object,
-                                     uint8_t *packet);
-int hicnlight_route_serialize_list(const hc_object_t *object, uint8_t *packet);
-
-#endif
-
 #endif /* HICNCTRL_MODULE_HICNLIGHT_ROUTE_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/stats.c b/ctrl/libhicnctrl/src/modules/hicn_light/stats.c
new file mode 100644
index 000000000..81c506770
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/stats.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2022 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file modules/hicn_light/stats.c
+ * \brief Implementation of stats object VFT for hicn_light.
+ */
+
+#include <hicn/util/log.h>
+#include "base.h"
+#include "stats.h"
+
+/* GENERAL STATS */
+
+int hicnlight_stats_parse(const uint8_t *buffer, size_t size,
+                          hc_stats_t *stats) {
+  if (size != sizeof(cmd_stats_list_item_t)) return -1;
+
+  cmd_stats_list_item_t *item = (cmd_stats_list_item_t *)buffer;
+  *stats = item->stats;
+  return 0;
+}
+
+int _hicnlight_stats_parse(const uint8_t *buffer, size_t size,
+                           hc_object_t *object) {
+  return hicnlight_stats_parse(buffer, size, &object->stats);
+}
+
+int hicnlight_stats_serialize_create(const hc_object_t *object,
+                                     uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_stats_serialize_delete(const hc_object_t *object,
+                                     uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_stats_serialize_list(const hc_object_t *object, uint8_t *packet) {
+  msg_stats_list_t *msg = (msg_stats_list_t *)packet;
+  *msg = (msg_stats_list_t){.header = {
+                                .message_type = REQUEST_LIGHT,
+                                .command_id = COMMAND_TYPE_STATS_LIST,
+                                .length = 0,
+                                .seq_num = 0,
+                            }};
+
+  return sizeof(msg_header_t);  // Do not use msg_stats_list_t
+}
+
+DECLARE_MODULE_OBJECT_OPS(hicnlight, stats);
+
+/* PER-FACE STATS */
+
+int hicnlight_face_stats_parse(const uint8_t *buffer, size_t size,
+                               hc_face_stats_t *stats) {
+  if (size != sizeof(cmd_face_stats_list_item_t)) return -1;
+
+  cmd_face_stats_list_item_t *item = (cmd_face_stats_list_item_t *)buffer;
+  *stats = item->stats;
+  return 0;
+}
+
+int _hicnlight_face_stats_parse(const uint8_t *buffer, size_t size,
+                                hc_object_t *object) {
+  return hicnlight_face_stats_parse(buffer, size, &object->face_stats);
+}
+
+int hicnlight_face_stats_serialize_create(const hc_object_t *object,
+                                          uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_face_stats_serialize_delete(const hc_object_t *object,
+                                          uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_face_stats_serialize_list(const hc_object_t *object,
+                                        uint8_t *packet) {
+  msg_face_stats_list_t *msg = (msg_face_stats_list_t *)packet;
+  *msg = (msg_face_stats_list_t){.header = {
+                                     .message_type = REQUEST_LIGHT,
+                                     .command_id = COMMAND_TYPE_FACE_STATS_LIST,
+                                     .length = 0,
+                                     .seq_num = 0,
+                                 }};
+
+  return sizeof(msg_header_t);  // Do not use msg_stats_list_t
+}
+
+DECLARE_MODULE_OBJECT_OPS(hicnlight, face_stats);
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/stats.h b/ctrl/libhicnctrl/src/modules/hicn_light/stats.h
index 34594bb72..9509be86c 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/stats.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/stats.h
@@ -1,26 +1,24 @@
+/*
+ * Copyright (c) 2022 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-#if 0
+#ifndef HICNCTRL_MODULE_HICNLIGHT_STATS_H
+#define HICNCTRL_MODULE_HICNLIGHT_STATS_H
 
-int hc_stats_snprintf(char *s, size_t size, const hicn_light_stats_t *stats) {
-  return snprintf(
-      s, size,
-      "pkts processed: %u\n\tinterests: %u\n\t"
-      "data: %u\npkts from cache count: %u\npkts no pit count: "
-      "%u\nexpired:\n\t interests: "
-      "%u\n\t data: %u\ninterests aggregated: "
-      "%u\nlru evictions: "
-      "%u\ndropped: "
-      "%u\ninterests retx: "
-      "%u\npit entries: %u\ncs entries: %u",
-      stats->forwarder.countReceived, stats->forwarder.countInterestsReceived,
-      stats->forwarder.countObjectsReceived,
-      stats->forwarder.countInterestsSatisfiedFromStore,
-      stats->forwarder.countDroppedNoReversePath,
-      stats->forwarder.countInterestsExpired, stats->forwarder.countDataExpired,
-      stats->pkt_cache.n_lru_evictions, stats->forwarder.countDropped,
-      stats->forwarder.countInterestsAggregated,
-      stats->forwarder.countInterestsRetransmitted,
-      stats->pkt_cache.n_pit_entries, stats->pkt_cache.n_cs_entries);
-}
+#include "../../module.h"
 
-#endif
+DECLARE_MODULE_OBJECT_OPS_H(hicnlight, stats);
+DECLARE_MODULE_OBJECT_OPS_H(hicnlight, face_stats);
+
+#endif /* HICNCTRL_MODULE_HICNLIGHT_STATS_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h b/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h
index 6b1933960..9fa809751 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h
@@ -3,22 +3,6 @@
 
 #include "../../module.h"
 
-#if 1
-
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, strategy);
 
-int _hicnlight_strategy_parse(const uint8_t *buffer, size_t size,
-                              hc_object_t *object);
-
-int hicnlight_strategy_serialize_create(const hc_object_t *object,
-                                        uint8_t *packet);
-
-int hicnlight_strategy_serialize_delete(const hc_object_t *object,
-                                        uint8_t *packet);
-
-int hicnlight_strategy_serialize_list(const hc_object_t *object,
-                                      uint8_t *packet);
-
-#endif
-
 #endif /* HICNCTRL_MODULE_HICNLIGHT_STRATEGY_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h b/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h
index a4edf556b..d67bdd9ba 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h
@@ -3,24 +3,6 @@
 
 #include "../../module.h"
 
-#if 1
-
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, subscription);
 
-#else
-
-int _hicnlight_subscription_parse(const uint8_t *buffer, size_t size,
-                                  hc_object_t *object);
-
-int hicnlight_subscription_serialize_create(const hc_object_t *object,
-                                            uint8_t *packet);
-
-int hicnlight_subscription_serialize_delete(const hc_object_t *object,
-                                            uint8_t *packet);
-
-int hicnlight_subscription_serialize_list(const hc_object_t *object,
-                                          uint8_t *packet);
-
-#endif
-
 #endif /* HICNCTRL_MODULE_HICNLIGHT_SUBSCRIPTION_H */
diff --git a/ctrl/libhicnctrl/src/object_vft.c b/ctrl/libhicnctrl/src/object_vft.c
index 808c0f913..01d2dab88 100644
--- a/ctrl/libhicnctrl/src/object_vft.c
+++ b/ctrl/libhicnctrl/src/object_vft.c
@@ -4,6 +4,7 @@
 #include "objects/connection.h"
 #include "objects/route.h"
 #include "objects/face.h"
+#include "objects/stats.h"
 #include "objects/strategy.h"
 #include "objects/subscription.h"
 #include "objects/active_interface.h"
@@ -13,6 +14,8 @@ const hc_object_ops_t *object_vft[] = {
     [OBJECT_TYPE_CONNECTION] = &hc_connection_ops,
     [OBJECT_TYPE_ROUTE] = &hc_route_ops,
     [OBJECT_TYPE_FACE] = &hc_face_ops,
+    [OBJECT_TYPE_FACE_STATS] = &hc_face_stats_ops,
+    [OBJECT_TYPE_STATS] = &hc_stats_ops,
     [OBJECT_TYPE_STRATEGY] = &hc_strategy_ops,
     [OBJECT_TYPE_SUBSCRIPTION] = &hc_subscription_ops,
     [OBJECT_TYPE_ACTIVE_INTERFACE] = &hc_active_interface_ops,
diff --git a/ctrl/libhicnctrl/src/objects/stats.c b/ctrl/libhicnctrl/src/objects/stats.c
index 2c3135d3c..f9d0e1de7 100644
--- a/ctrl/libhicnctrl/src/objects/stats.c
+++ b/ctrl/libhicnctrl/src/objects/stats.c
@@ -18,42 +18,91 @@
  * \brief Implementation of stats.
  */
 
-#include <string.h>
-
 #include <hicn/ctrl/api.h>
-#include <hicn/ctrl/object.h>
-#include <hicn/ctrl/objects/stats.h>
 #include <hicn/util/log.h>
 
 #include "../object_vft.h"
-#include "../object_private.h"
 
-int hc_stats_snprintf(char *s, size_t size, const hc_stats_t *stats) {
-#if 0
-            INFO("Connection #%d:", conn_stats->id);
-            INFO("\tinterests received: %d pkts (%d bytes)",
-                 conn_stats->stats.interests.rx_pkts,
-                 conn_stats->stats.interests.rx_bytes);
-            INFO("\tinterests transmitted: %d pkts (%d bytes)",
-                 conn_stats->stats.interests.tx_pkts,
-                 conn_stats->stats.interests.tx_bytes);
-            INFO("\tdata received: %d pkts (%d bytes)",
-                 conn_stats->stats.data.rx_pkts,
-                 conn_stats->stats.data.rx_bytes);
-            INFO("\tdata transmitted: %d pkts (%d bytes)",
-                 conn_stats->stats.data.tx_pkts,
-                 conn_stats->stats.data.tx_bytes);
-#endif
+/* GENERAL STATS */
+
+int _hc_stats_validate(const hc_object_t *object, bool allow_partial) {
+  // Nothing to validate
   return 0;
 }
 
-int hc_stats_get(hc_sock_t *s, hc_data_t **pdata) {
-  hc_object_t object;
-  memset(&object, 0, sizeof(hc_object_t));
-  object.listener = *listener;
-  return hc_execute(s, ACTION_GET, OBJECT_TYPE_STATS, &object, pdata);
+int _hc_stats_cmp(const hc_object_t *object1, const hc_object_t *object2) {
+  ERROR("[_hc_stats_cmp] Not implemented");
+  return -1;
+}
+
+int _hc_stats_snprintf(char *s, size_t size, const hc_object_t *object) {
+  return hc_stats_snprintf(s, size, &object->stats);
+}
+
+int hc_stats_snprintf(char *s, size_t size, const hc_stats_t *stats) {
+  return snprintf(
+      s, size,
+      "*** STATS ***\nreceived = %u (interest = %u, data = %u)\ndropped = %u "
+      "(interest = %u, data = %u, other = %u)\nforwarded = { interests = "
+      "%u, data = %u }\ndropped_reason = { connection_not_found = %u, "
+      "send_failure = %u, no_route_in_fib = %u }\ninterest processing = { "
+      "aggregated = %u, retransmitted = %u, satisfied_from_cs = %u, "
+      "expired_interests = %u, expired_data = %u }\ndata processing = { "
+      "no_reverse_path = %u }\npacket cache = {PIT size = %u, CS size = %u, "
+      "eviction = %u}",
+      stats->forwarder.countReceived, stats->forwarder.countInterestsReceived,
+      stats->forwarder.countObjectsReceived, stats->forwarder.countDropped,
+      stats->forwarder.countInterestsDropped,
+      stats->forwarder.countObjectsDropped, stats->forwarder.countOtherDropped,
+      stats->forwarder.countInterestForwarded,
+      stats->forwarder.countObjectsForwarded,
+      stats->forwarder.countDroppedConnectionNotFound,
+      stats->forwarder.countSendFailures, stats->forwarder.countDroppedNoRoute,
+      stats->forwarder.countInterestsAggregated,
+      stats->forwarder.countInterestsRetransmitted,
+      stats->forwarder.countInterestsSatisfiedFromStore,
+      stats->forwarder.countInterestsExpired, stats->forwarder.countDataExpired,
+      stats->forwarder.countDroppedNoReversePath,
+      stats->pkt_cache.n_pit_entries, stats->pkt_cache.n_cs_entries,
+      stats->pkt_cache.n_lru_evictions);
 }
 
 int hc_stats_list(hc_sock_t *s, hc_data_t **pdata) {
   return hc_execute(s, ACTION_LIST, OBJECT_TYPE_STATS, NULL, pdata);
 }
+
+DECLARE_OBJECT_OPS(OBJECT_TYPE_STATS, stats);
+
+/* PER-FACE STATS */
+
+int _hc_face_stats_validate(const hc_object_t *object, bool allow_partial) {
+  // Nothing to validate
+  return 0;
+}
+
+int _hc_face_stats_cmp(const hc_object_t *object1, const hc_object_t *object2) {
+  ERROR("[_hc_stats_cmp] Not implemented");
+  return -1;
+}
+
+int _hc_face_stats_snprintf(char *s, size_t size, const hc_object_t *object) {
+  return hc_face_stats_snprintf(s, size, &object->face_stats);
+}
+
+int hc_face_stats_snprintf(char *s, size_t size, const hc_face_stats_t *stats) {
+  return snprintf(
+      s, size,
+      "conn #%u:\tinterests =\t{ rx packets = %u, rx bytes = %u,  "
+      "tx packets = %u,  tx bytes = %u }\n\t\tdata =\t\t{ rx packets "
+      "= %u, rx bytes = %u,  "
+      "tx packets = %u,  tx bytes = %u }",
+      stats->conn_id, stats->interests.rx_pkts, stats->interests.rx_bytes,
+      stats->interests.tx_pkts, stats->interests.tx_bytes, stats->data.rx_pkts,
+      stats->data.rx_bytes, stats->data.tx_pkts, stats->data.tx_bytes);
+}
+
+int hc_face_stats_list(hc_sock_t *s, hc_data_t **pdata) {
+  return hc_execute(s, ACTION_LIST, OBJECT_TYPE_FACE_STATS, NULL, pdata);
+}
+
+DECLARE_OBJECT_OPS(OBJECT_TYPE_FACE_STATS, face_stats);
\ No newline at end of file
diff --git a/ctrl/libhicnctrl/src/objects/stats.h b/ctrl/libhicnctrl/src/objects/stats.h
new file mode 100644
index 000000000..3a4f04b2e
--- /dev/null
+++ b/ctrl/libhicnctrl/src/objects/stats.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2022 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file stats.h
+ * \brief Stats.
+ */
+
+#ifndef HICNCTRL_IMPL_OBJECTS_STATS_H
+#define HICNCTRL_IMPL_OBJECTS_STATS_H
+
+#include "../object_vft.h"
+
+DECLARE_OBJECT_OPS_H(OBJECT_TYPE_STATS, stats);
+DECLARE_OBJECT_OPS_H(OBJECT_TYPE_FACE_STATS, face_stats);
+
+#endif /* HICNCTRL_IMPL_OBJECTS_STATS_H */
\ No newline at end of file