feat: Due to the deep modifications related to names and packet format,

this task cover a large part of the codebase and involves several changes:

- the library provides a name data structure (hicn_name_t ), which is composed
  of a name prefix (hicn_name_prefix_t) and a name suffix (hicn_name_suffix_t),
  and it has been extended to provide all support functions required for name
  manipulation, including common prefix computation, as required for the Longest
  Prefix Match (LPM)in the forwarder, in addition to Exact Prefix Match (EPM).
- all code has been rewritten to use this data structure instead of having for
  instance the forwarder define its own name class (used to be Name and NameBitVector)
  the code has been refactored to minimize name allocations and copies, one remaining
  aspect is the difference of name storage between PIT and CS entries (respectively
  in the PIT entry, and in the message buffer), which causes the packet cache
  index to be updated when a PIT entry is converted into a CS entry. By storing
  the name in the PIT/CS entry everytime, we might save on this operation).
- hicn-light FIB has been rewritten : code has been refactored and should now be
  shorter and documented; unit tests have been drafted but more would be required
  to cover all cases and match the algorithms to add/remove nodes, as specified in the doc.
  all protocol details and hICN header formats are now abstracted by the library
  for the forwarder (and thus header.h and  protocols/*.h have been removed from
  public includes, and replaced by packet.h providing protocol agnostic packet
  level functions, completely replacing the compat.h header that used to provide
  similar functions.
- this works by exposing a opaque buffer to the application (a kind of socket buffer)
  which is used by the lib to cache the packet format and offsets of the different
  layers in the buffer and provider efficient operations (the packet format is
  either defined for packet construction, or guessed at ingress, and this structure
  is updated accordingly only once).

Co-authored-by: Jordan Augé <jordan.auge+fdio@cisco.com>
Signed-off-by: Luca Muscariello <muscariello@ieee.org>
Change-Id: I31e321897f85f0267fe8ba4720363c180564492f

19 files changed, 2370 insertions, 0 deletions

diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/base.h b/ctrl/libhicnctrl/src/modules/hicn_light/base.h
new file mode 100644
index 000000000..fb6a68147
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/base.h
@@ -0,0 +1,60 @@
+#ifndef HICNCTRL_MODULES_HICNLIGHT_BASE_H
+#define HICNCTRL_MODULES_HICNLIGHT_BASE_H
+
+#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
+
+#define foreach_hc_command     \
+  _(connection_add)            \
+  _(connection_remove)         \
+  _(connection_list)           \
+  _(listener_add)              \
+  _(listener_remove)           \
+  _(listener_list)             \
+  _(route_add)                 \
+  _(route_remove)              \
+  _(route_list)                \
+  _(cache_set_store)           \
+  _(cache_set_serve)           \
+  _(cache_clear)               \
+  _(cache_list)                \
+  _(strategy_set)              \
+  _(strategy_add_local_prefix) \
+  _(wldr_set)                  \
+  _(punting_add)               \
+  _(mapme_activator)           \
+  _(mapme_timing)              \
+  _(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
+#undef _
+} hc_msg_payload_t;
+
+typedef cmd_header_t hc_msg_header_t;
+
+typedef struct hc_msg_s {
+  hc_msg_header_t header;
+  hc_msg_payload_t payload;
+} hc_msg_t;
+
+#endif /* HICNCTRL_MODULES_HICNLIGHT_BASE_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/cache.c b/ctrl/libhicnctrl/src/modules/hicn_light/cache.c
new file mode 100644
index 000000000..e085142d7
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/cache.c
@@ -0,0 +1,178 @@
+#include "cache.h"
+
+/* CACHE SET STORE */
+
+static int _hcng_cache_set_store_internal(hc_sock_t *socket, hc_cache_t *cache,
+                                          bool async) {
+#if 0
+  msg_cache_set_store_t msg = {
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_CACHE_SET_STORE,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload = {
+          .activate = cache->store,
+      }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_STORE,
+      .cmd_id = COMMAND_TYPE_CACHE_SET_STORE,
+      .size_in = sizeof(cmd_cache_set_store_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, async);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_cache_set_store(hc_sock_t *s, hc_cache_t *cache) {
+  return _hcng_cache_set_store_internal(s, cache, false);
+}
+
+static int _hcng_cache_set_store_async(hc_sock_t *s, hc_cache_t *cache) {
+  return _hcng_cache_set_store_internal(s, cache, true);
+}
+
+/* CACHE SET SERVE */
+
+static int _hcng_cache_set_serve_internal(hc_sock_t *socket, hc_cache_t *cache,
+                                          bool async) {
+#if 0
+  msg_cache_set_serve_t msg = {
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_CACHE_SET_SERVE,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload = {
+          .activate = cache->serve,
+      }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SERVE,
+      .cmd_id = COMMAND_TYPE_CACHE_SET_SERVE,
+      .size_in = sizeof(cmd_cache_set_serve_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, async);
+#endif
+  return 0;  /// added
+}
+
+static int _hcng_cache_set_serve(hc_sock_t *s, hc_cache_t *cache) {
+  return _hcng_cache_set_serve_internal(s, cache, false);
+}
+
+static int _hcng_cache_set_serve_async(hc_sock_t *s, hc_cache_t *cache) {
+  return _hcng_cache_set_serve_internal(s, cache, true);
+}
+
+/* CACHE CLEAR */
+
+static int _hcng_cache_clear_internal(hc_sock_t *socket, hc_cache_t *cache,
+                                      bool async) {
+#if 0
+  msg_cache_clear_t msg = {.header = {
+                               .message_type = REQUEST_LIGHT,
+                               .command_id = COMMAND_TYPE_CACHE_CLEAR,
+                               .length = 1,
+                               .seq_num = 0,
+                           }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_CLEAR,
+      .cmd_id = COMMAND_TYPE_CACHE_CLEAR,
+      .size_in = sizeof(cmd_cache_clear_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, async);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_cache_clear(hc_sock_t *s, hc_cache_t *cache) {
+  return _hcng_cache_clear_internal(s, cache, false);
+}
+
+/* CACHE PARSE */
+
+static int hc_cache_parse(void *in, hc_cache_info_t *cache_info) {
+  cmd_cache_list_reply_t *item = (cmd_cache_list_reply_t *)in;
+  *cache_info = (hc_cache_info_t){.store = item->store_in_cs,
+                                  .serve = item->serve_from_cs,
+                                  .cs_size = item->cs_size,
+                                  .num_stale_entries = item->num_stale_entries};
+
+  return 0;
+}
+
+/* CACHE LIST */
+
+static hc_result_t *_hcng_cache_list_serialize(hc_sock_t *socket,
+                                               hc_data_t **pdata, bool async) {
+  hc_result_t *res = malloc(sizeof(*res));
+  DEBUG("[hc_cache_list] async=%s", BOOLSTR(async));
+
+  msg_cache_list_t msg = {.header = {
+                              .message_type = REQUEST_LIGHT,
+                              .command_id = COMMAND_TYPE_CACHE_LIST,
+                              .length = 0,
+                              .seq_num = 0,
+                          }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_LIST,
+      .cmd_id = COMMAND_TYPE_CACHE_LIST,
+      .size_in = sizeof(cmd_cache_list_reply_t),
+      .size_out = sizeof(hc_cache_info_t),
+      .parse = (HC_PARSE)hc_cache_parse,
+  };
+
+  *res = (hc_result_t){
+      .msg =
+          (hc_msg_t){
+              .header = msg.header,
+              .payload.cache_list = msg.payload,
+          },
+      .params = params,
+      .async = async,
+      .success = true,
+  };
+  return res;
+}
+
+static int _hcng_cache_list_internal(hc_sock_t *socket, hc_data_t **pdata,
+                                     bool async) {
+#if 0
+  hc_result_t *result = _hcng_cache_list_serialize(socket, pdata, async);
+
+  int ret = INPUT_ERROR;
+  if (result->success) {
+    ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg,
+                                sizeof(result->msg), &result->params, pdata,
+                                result->async);
+  }
+
+  hc_result_free(result);
+  return ret;
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_cache_list(hc_sock_t *s, hc_data_t **pdata) {
+  return _hcng_cache_list_internal(s, pdata, false);
+}
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/connection.c b/ctrl/libhicnctrl/src/modules/hicn_light/connection.c
new file mode 100644
index 000000000..c7d06415e
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/connection.c
@@ -0,0 +1,498 @@
+/*
+ * 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.
+ */
+
+#include <assert.h>
+#include <stdint.h>
+
+#include <hicn/util/log.h>
+
+#include "base.h"
+#include "connection.h"
+#include "../../object_private.h"
+
+int hc_connection_to_local_listener(const hc_connection_t *connection,
+                                    hc_listener_t *listener) {
+  int rc;
+
+  face_type_t listener_type;
+  switch (connection->type) {
+    case FACE_TYPE_UDP:
+      listener_type = FACE_TYPE_UDP_LISTENER;
+      break;
+    case FACE_TYPE_TCP:
+      listener_type = FACE_TYPE_TCP_LISTENER;
+      break;
+    default:
+      return -1;
+  }
+
+  *listener = (hc_listener_t){
+      .id = ~0,
+      .type = listener_type,
+      .family = connection->family,
+      .local_addr = connection->local_addr,
+      .local_port = connection->local_port,
+  };
+  rc = snprintf(listener->name, SYMBOLIC_NAME_LEN, "lst%u",
+                RANDBYTE());  // generate name
+  if (rc >= SYMBOLIC_NAME_LEN)
+    WARN(
+        "[hc_connection_to_local_listener] Unexpected truncation of "
+        "symbolic name string");
+  rc = snprintf(listener->interface_name, INTERFACE_LEN, "%s",
+                connection->interface_name);
+  if (rc >= INTERFACE_LEN)
+    WARN(
+        "[hc_connection_to_local_listener] Unexpected truncation of "
+        "interface name string");
+
+  return 0;
+}
+
+/* CONNECTION PARSE */
+
+static int hicnlight_connection_parse(const uint8_t *buffer, size_t size,
+                                      hc_connection_t *connection) {
+  int rc;
+
+  if (size != sizeof(cmd_connection_list_item_t)) return -1;
+  cmd_connection_list_item_t *item = (cmd_connection_list_item_t *)buffer;
+
+  if (!IS_VALID_ID(item->id)) {
+    ERROR("[hc_connection_parse] Invalid id received");
+    return -1;
+  }
+
+  if (!IS_VALID_NAME(item->name)) {
+    ERROR("[hc_connection_parse] Invalid name received");
+    return -1;
+  }
+  if (!IS_VALID_INTERFACE_NAME(item->interface_name)) {
+    ERROR("[hc_connection_parse] Invalid interface_name received");
+    return -1;
+  }
+
+  if (!IS_VALID_TYPE(item->type)) {
+    ERROR("[hc_connection_parse] Invalid type received");
+    return -1;
+  }
+
+  if (!IS_VALID_FAMILY(item->family)) {
+    ERROR("[hc_connection_parse] Invalid family received");
+    return -1;
+  }
+
+  if (!IS_VALID_ADDRESS(item->local_address)) {
+    ERROR("[hc_connection_parse] Invalid address received");
+    return -1;
+  }
+
+  if (!IS_VALID_PORT(ntohs(item->local_port))) {
+    ERROR("[hc_connection_parse] Invalid port received");
+    return -1;
+  }
+
+  if (!IS_VALID_ADDRESS(item->remote_address)) {
+    ERROR("[hc_connection_parse] Invalid address received");
+    return -1;
+  }
+
+  if (!IS_VALID_PORT(ntohs(item->remote_port))) {
+    ERROR("[hc_connection_parse] Invalid port received");
+    return -1;
+  }
+
+  if (!IS_VALID_FACE_STATE(item->admin_state)) {
+    ERROR("[hc_connection_parse] Invalid admin_state received");
+    return -1;
+  }
+
+  // PRIORITY
+  // TAGS
+
+  if (!IS_VALID_FACE_STATE(item->state)) {
+    ERROR("[hc_connection_parse] Invalid state received");
+    return -1;
+  }
+
+  *connection = (hc_connection_t){
+      .id = item->id,
+      .type = (face_type_t)item->type,
+      .family = (int)item->family,
+      .local_addr = item->local_addr,
+      .local_port = ntohs(item->local_port),
+      .remote_addr = item->remote_addr,
+      .remote_port = ntohs(item->remote_port),
+      .admin_state = (face_state_t)item->admin_state,
+      .priority = item->priority,
+      .tags = item->tags,
+      .state = (face_state_t)item->state,
+  };
+  rc = snprintf(connection->name, SYMBOLIC_NAME_LEN, "%s", item->name);
+  if ((rc < 0) || (rc >= SYMBOLIC_NAME_LEN)) return -1;
+
+  rc = snprintf(connection->interface_name, INTERFACE_LEN, "%s",
+                item->interface_name);
+  if ((rc < 0) || (rc >= INTERFACE_LEN)) return -1;
+
+  if (hc_connection_validate(connection, false) < 0) return -1;
+  return 0;
+}
+
+int _hicnlight_connection_parse(const uint8_t *buffer, size_t size,
+                                hc_object_t *object) {
+  return hicnlight_connection_parse(buffer, size, &object->connection);
+}
+
+/* CONNECTION CREATE */
+
+int hicnlight_connection_serialize_create(const hc_object_t *object,
+                                          uint8_t *packet) {
+  int rc;
+  const hc_connection_t *connection = &object->connection;
+
+  msg_connection_add_t *msg = (msg_connection_add_t *)packet;
+  *msg = (msg_connection_add_t){
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_CONNECTION_ADD,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload = {
+          .remote_ip = connection->remote_addr,
+          .local_ip = connection->local_addr,
+          .remote_port = htons(connection->remote_port),
+          .local_port = htons(connection->local_port),
+          .family = (uint8_t)connection->family,
+          .type = (uint8_t)connection->type,
+          .admin_state = (uint8_t)connection->admin_state,
+          .__pad = 0,
+          .priority = connection->priority,
+          .tags = connection->tags,
+      }};
+
+  rc = snprintf(msg->payload.symbolic, SYMBOLIC_NAME_LEN, "%s",
+                connection->name);
+  if ((rc < 0) || (rc >= SYMBOLIC_NAME_LEN)) return -1;
+
+  return sizeof(msg_connection_add_t);
+}
+
+/* CONNECTION DELETE */
+
+int hicnlight_connection_serialize_delete(const hc_object_t *object,
+                                          uint8_t *packet) {
+  int rc;
+  const hc_connection_t *connection = &object->connection;
+
+  msg_connection_remove_t *msg = (msg_connection_remove_t *)packet;
+  *msg = (msg_connection_remove_t){
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_CONNECTION_REMOVE,
+              .length = 1,
+              .seq_num = 0,
+          },
+  };
+
+  if (connection->id) {
+    rc = snprintf(msg->payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d",
+                  connection->id);
+    // XXX
+    if (rc >= SYMBOLIC_NAME_LEN)
+      WARN(
+          "[_hc_connection_delete] Unexpected truncation of symbolic name "
+          "string");
+  } else if (*connection->name) {
+    rc = snprintf(msg->payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s",
+                  connection->name);
+    // XXX
+    if (rc >= SYMBOLIC_NAME_LEN)
+      WARN(
+          "[_hc_connection_delete] Unexpected truncation of symbolic name "
+          "string");
+#if 0
+  } else {
+    hc_connection_t *connection_found;
+    if (hc_connection_get(socket, connection, &connection_found) < 0)
+      return res;
+    if (!connection_found) return res;
+    rc = snprintf(payload->symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d",
+                  connection_found->id);
+    // XXX
+    if (rc >= SYMBOLIC_NAME_LEN)
+      WARN(
+          "[_hc_connection_delete] Unexpected truncation of symbolic name "
+          "string");
+    free(connection_found);
+#endif
+  }
+
+  return sizeof(msg_connection_remove_t);
+}
+
+// XXX How to update a connection XXX
+// Key attributes are mandatory
+// Enum can be undefined
+// family UNSPEC
+// ip address NULL
+// port NULL
+// priority = int ????????? specific negative value == unspec
+// tags = bitmap ????????? 0xFFFFFF special value == unspec
+
+//  u32 id;                             /* Kr. */
+//  char name[SYMBOLIC_NAME_LEN];       /* K.w */
+//  char interface_name[INTERFACE_LEN]; /* Kr. */
+//
+//  netdevice_type_t netdevice_type; undefined
+//  face_type_t type;
+//  int family;
+//  ip_address_t local_addr;
+//  u16 local_port;
+//  ip_address_t remote_addr;
+//  u16 remote_port;
+//  face_state_t admin_state;
+//  uint32_t priority;  /* .rw */
+//  policy_tags_t tags; /* .rw */
+//  face_state_t state; /* .r. */
+int hicnlight_connection_serialize_update(const hc_object_t *object,
+                                          uint8_t *packet) {
+  int rc;
+  const hc_connection_t *connection = &object->connection;
+
+  msg_connection_update_t *msg = (msg_connection_update_t *)packet;
+  *msg = (msg_connection_update_t){
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_CONNECTION_UPDATE,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload = {
+          //.remote_ip = connection->remote_updater,
+          //.local_ip = connection->local_updater,
+          //.remote_port = htons(connection->remote_port),
+          //.local_port = htons(connection->local_port),
+          //.family = connection->family,
+          //.type = connection->type,
+          .admin_state = connection->admin_state,
+          .priority = connection->priority,
+          .tags = connection->tags,
+      }};
+
+  rc = snprintf(msg->payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s",
+                connection->name);
+  if ((rc < 0) || (rc >= SYMBOLIC_NAME_LEN)) return -1;
+
+  // snprintf(msg.payload.interface_name, INTERFACE_NAME_LEN, "%s",
+  // connection->interface_name);
+
+  return sizeof(msg_connection_update_t);
+}
+
+#if 0
+/* CONNECTION SET ADMIN STATE */
+
+static int _hicnlight_connection_set_admin_state_internal(
+    hc_sock_t *socket, const char *conn_id_or_name, face_state_t state,
+    bool async) {
+  int rc;
+  DEBUG(
+      "[hc_connection_set_admin_state] connection_id/name=%s admin_state=%s "
+      "async=%s",
+      conn_id_or_name, face_state_str(state), BOOLSTR(async));
+
+  struct {
+    cmd_header_t hdr;
+    cmd_connection_set_admin_state_t payload;
+  } msg = {
+      .hdr =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_CONNECTION_SET_ADMIN_STATE,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload =
+          {
+              .admin_state = state,
+          },
+  };
+  rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s",
+                conn_id_or_name);
+  if (rc >= SYMBOLIC_NAME_LEN)
+    WARN(
+        "[_hc_connection_set_admin_state] Unexpected truncation of symbolic "
+        "name string");
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SET,
+      .cmd_id = COMMAND_TYPE_CONNECTION_SET_ADMIN_STATE,
+      .size_in = sizeof(cmd_connection_set_admin_state_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hicnlight_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, async);
+}
+
+static int _hicnlight_connection_set_admin_state(hc_sock_t *s,
+                                            const char *conn_id_or_name,
+                                            face_state_t state) {
+  return _hicnlight_connection_set_admin_state_internal(s, conn_id_or_name, state,
+                                                   false);
+}
+
+static int _hicnlight_connection_set_admin_state_async(hc_sock_t *s,
+                                                  const char *conn_id_or_name,
+                                                  face_state_t state) {
+  return _hicnlight_connection_set_admin_state_internal(s, conn_id_or_name, state,
+                                                   true);
+}
+
+
+static int _hicnlight_connection_set_priority_internal(hc_sock_t *socket,
+                                                  const char *conn_id_or_name,
+                                                  uint32_t priority,
+                                                  bool async) {
+  int rc;
+  DEBUG(
+      "[hc_connection_set_priority] connection_id/name=%s priority=%d "
+      "async=%s",
+      conn_id_or_name, priority, BOOLSTR(async));
+  struct {
+    cmd_header_t hdr;
+    cmd_connection_set_priority_t payload;
+  } msg = {
+      .hdr =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_CONNECTION_SET_PRIORITY,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload =
+          {
+              .priority = priority,
+          },
+  };
+  rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s",
+                conn_id_or_name);
+  if (rc >= SYMBOLIC_NAME_LEN)
+    WARN(
+        "[_hc_connection_set_priority] Unexpected truncation of symbolic "
+        "name "
+        "string");
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SET,
+      .cmd_id = COMMAND_TYPE_CONNECTION_SET_PRIORITY,
+      .size_in = sizeof(cmd_connection_set_priority_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hicnlight_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, async);
+}
+
+static int _hicnlight_connection_set_priority(hc_sock_t *s,
+                                         const char *conn_id_or_name,
+                                         uint32_t priority) {
+  return _hicnlight_connection_set_priority_internal(s, conn_id_or_name, priority,
+                                                false);
+}
+
+static int _hicnlight_connection_set_priority_async(hc_sock_t *s,
+                                               const char *conn_id_or_name,
+                                               uint32_t priority) {
+  return _hicnlight_connection_set_priority_internal(s, conn_id_or_name, priority,
+                                                true);
+}
+
+
+static int _hicnlight_connection_set_tags_internal(hc_sock_t *s,
+                                              const char *conn_id_or_name,
+                                              policy_tags_t tags, bool async) {
+  int rc;
+  DEBUG("[hc_connection_set_tags] connection_id/name=%s tags=%d async=%s",
+        conn_id_or_name, tags, BOOLSTR(async));
+  struct {
+    cmd_header_t hdr;
+    cmd_connection_set_tags_t payload;
+  } msg = {
+      .hdr =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_CONNECTION_SET_TAGS,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload =
+          {
+              .tags = tags,
+          },
+  };
+  rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s",
+                conn_id_or_name);
+  if (rc >= SYMBOLIC_NAME_LEN)
+    WARN(
+        "[_hc_connection_set_tags] Unexpected truncation of symbolic name "
+        "string");
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SET,
+      .cmd_id = COMMAND_TYPE_CONNECTION_SET_TAGS,
+      .size_in = sizeof(cmd_connection_set_tags_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hicnlight_execute_command(s, (hc_msg_t *)&msg, sizeof(msg), &params, NULL,
+                               async);
+}
+
+static int _hicnlight_connection_set_tags(hc_sock_t *s, const char *conn_id_or_name,
+                                     policy_tags_t tags) {
+  return _hicnlight_connection_set_tags_internal(s, conn_id_or_name, tags, false);
+}
+
+static int _hicnlight_connection_set_tags_async(hc_sock_t *s,
+                                           const char *conn_id_or_name,
+                                           policy_tags_t tags) {
+  return _hicnlight_connection_set_tags_internal(s, conn_id_or_name, tags, true);
+}
+#endif
+
+/* CONNECTION LIST */
+
+int hicnlight_connection_serialize_list(const hc_object_t *object,
+                                        uint8_t *packet) {
+  msg_connection_list_t *msg = (msg_connection_list_t *)packet;
+  *msg = (msg_connection_list_t){.header = {
+                                     .message_type = REQUEST_LIGHT,
+                                     .command_id = COMMAND_TYPE_CONNECTION_LIST,
+                                     .length = 0,
+                                     .seq_num = 0,
+                                 }};
+  return sizeof(msg_header_t);  // Do not use msg_connection_list_t
+}
+
+DECLARE_MODULE_OBJECT_OPS(hicnlight, connection);
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/connection.h b/ctrl/libhicnctrl/src/modules/hicn_light/connection.h
new file mode 100644
index 000000000..77204e6b2
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/connection.h
@@ -0,0 +1,27 @@
+#ifndef HICNCTRL_MODULE_HICNLIGHT_CONNECTION_H
+#define HICNCTRL_MODULE_HICNLIGHT_CONNECTION_H
+
+#include "../../module.h"
+
+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/face.c b/ctrl/libhicnctrl/src/modules/hicn_light/face.c
new file mode 100644
index 000000000..0d9475420
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/face.c
@@ -0,0 +1,482 @@
+#include <hicn/ctrl/objects/listener.h>
+#include <hicn/util/log.h>
+
+#include "base.h"
+#include "face.h"
+
+int hc_face_from_connection(const hc_connection_t *connection,
+                            hc_face_t *face) {
+  int rc;
+  switch (connection->type) {
+    case FACE_TYPE_TCP:
+      *face = (hc_face_t){
+          .id = connection->id,
+          .type = FACE_TYPE_TCP,
+          .family = connection->family,
+          .local_addr = connection->local_addr,
+          .local_port = connection->local_port,
+          .remote_addr = connection->remote_addr,
+          .remote_port = connection->remote_port,
+          .admin_state = connection->admin_state,
+          .state = connection->state,
+          .priority = connection->priority,
+          .tags = connection->tags,
+      };
+      break;
+    case FACE_TYPE_UDP:
+      *face = (hc_face_t){
+          .id = connection->id,
+          .type = FACE_TYPE_UDP,
+          .family = connection->family,
+          .local_addr = connection->local_addr,
+          .local_port = connection->local_port,
+          .remote_addr = connection->remote_addr,
+          .remote_port = connection->remote_port,
+          .admin_state = connection->admin_state,
+          .state = connection->state,
+          .priority = connection->priority,
+          .tags = connection->tags,
+      };
+      break;
+    case FACE_TYPE_HICN:
+      *face = (hc_face_t){
+          .id = connection->id,
+          .type = FACE_TYPE_HICN,
+          .family = connection->family,
+          .netdevice.index = NETDEVICE_UNDEFINED_INDEX,  // XXX
+          .local_addr = connection->local_addr,
+          .remote_addr = connection->remote_addr,
+          .admin_state = connection->admin_state,
+          .state = connection->state,
+          .priority = connection->priority,
+          .tags = connection->tags,
+      };
+      break;
+    default:
+      return -1;
+  }
+  face->netdevice.name[0] = '\0';
+  face->netdevice.index = 0;
+  rc = snprintf(face->name, SYMBOLIC_NAME_LEN, "%s", connection->name);
+  if (rc >= SYMBOLIC_NAME_LEN)
+    WARN(
+        "[hc_connection_to_face] Unexpected truncation of symbolic name "
+        "string");
+  rc = snprintf(face->netdevice.name, INTERFACE_LEN, "%s",
+                connection->interface_name);
+  if (rc >= INTERFACE_LEN)
+    WARN(
+        "[hc_connection_to_face] Unexpected truncation of interface name "
+        "string");
+  netdevice_update_index(&face->netdevice);
+  return 0;
+}
+
+int hc_face_to_connection(const hc_face_t *face, hc_connection_t *connection,
+                          bool generate_name) {
+  int rc;
+
+  switch (face->type) {
+    case FACE_TYPE_HICN:
+      *connection = (hc_connection_t){
+          .type = FACE_TYPE_HICN,
+          .family = face->family,
+          .local_addr = face->local_addr,
+          .local_port = 0,
+          .remote_addr = face->remote_addr,
+          .remote_port = 0,
+          .admin_state = face->admin_state,
+          .state = face->state,
+          .priority = face->priority,
+          .tags = face->tags,
+      };
+      rc = snprintf(connection->name, SYMBOLIC_NAME_LEN, "%s",
+                    face->netdevice.name);
+      if (rc >= SYMBOLIC_NAME_LEN)
+        WARN(
+            "[hc_face_to_connection] Unexpected truncation of symbolic "
+            "name string");
+      break;
+    case FACE_TYPE_TCP:
+      *connection = (hc_connection_t){
+          .type = FACE_TYPE_TCP,
+          .family = face->family,
+          .local_addr = face->local_addr,
+          .local_port = face->local_port,
+          .remote_addr = face->remote_addr,
+          .remote_port = face->remote_port,
+          .admin_state = face->admin_state,
+          .state = face->state,
+          .priority = face->priority,
+          .tags = face->tags,
+      };
+      if (generate_name) {
+        rc = snprintf(connection->name, SYMBOLIC_NAME_LEN, "tcp%u", RANDBYTE());
+        if (rc >= SYMBOLIC_NAME_LEN)
+          WARN(
+              "[hc_face_to_connection] Unexpected truncation of "
+              "symbolic name string");
+      } else {
+        memset(connection->name, 0, SYMBOLIC_NAME_LEN);
+      }
+      break;
+    case FACE_TYPE_UDP:
+      *connection = (hc_connection_t){
+          .type = FACE_TYPE_UDP,
+          .family = face->family,
+          .local_addr = face->local_addr,
+          .local_port = face->local_port,
+          .remote_addr = face->remote_addr,
+          .remote_port = face->remote_port,
+          .admin_state = face->admin_state,
+          .state = face->state,
+          .priority = face->priority,
+          .tags = face->tags,
+      };
+      if (generate_name) {
+        rc = snprintf(connection->name, SYMBOLIC_NAME_LEN, "udp%u", RANDBYTE());
+        if (rc >= SYMBOLIC_NAME_LEN)
+          WARN(
+              "[hc_face_to_connection] Unexpected truncation of "
+              "symbolic name string");
+      } else {
+        memset(connection->name, 0, SYMBOLIC_NAME_LEN);
+      }
+      snprintf(connection->interface_name, INTERFACE_LEN, "%s",
+               face->netdevice.name);
+      break;
+    default:
+      return -1;
+  }
+
+  connection->id = face->id;
+  rc = snprintf(connection->interface_name, INTERFACE_LEN, "%s",
+                face->netdevice.name);
+  if (rc >= INTERFACE_LEN)
+    WARN(
+        "hc_face_to_connection] Unexpected truncation of interface name "
+        "string");
+
+  return 0;
+}
+
+int hc_face_to_listener(const hc_face_t *face, hc_listener_t *listener) {
+  switch (face->type) {
+    case FACE_TYPE_HICN_LISTENER:
+      break;
+    case FACE_TYPE_TCP_LISTENER:
+      break;
+    case FACE_TYPE_UDP_LISTENER:
+      break;
+    default:
+      return -1;
+  }
+  return -1; /* XXX Not implemented */
+}
+
+#if 0
+/*----------------------------------------------------------------------------*
+ * Face
+ *
+ * Face support is not directly available in hicn-light, but we can offer such
+ * an interface through a combination of listeners and connections. The code
+ * starts with some conversion functions between faces/listeners/connections.
+ *
+ * We also need to make sure that there always exist a (single) listener when
+ *a connection is created, and in the hICN face case, that there is a single
+ * connection attached to this listener.
+ *
+ *----------------------------------------------------------------------------*/
+
+/* FACE CREATE */
+
+static int _hcng_face_create(hc_sock_t *socket, hc_face_t *face) {
+#if 0
+  hc_listener_t listener;
+  hc_listener_t *listener_found;
+
+  hc_connection_t connection;
+  hc_connection_t *connection_found;
+
+  char face_s[MAXSZ_HC_FACE];
+  int rc = hc_face_snprintf(face_s, MAXSZ_HC_FACE, face);
+  if (rc >= MAXSZ_HC_FACE)
+    WARN("[hc_face_create] Unexpected truncation of face string");
+  DEBUG("[hc_face_create] face=%s", face_s);
+
+  switch (face->face.type) {
+    case FACE_TYPE_HICN:
+    case FACE_TYPE_TCP:
+    case FACE_TYPE_UDP:
+      if (hc_face_to_connection(face, &connection, true) < 0) {
+        ERROR("[hc_face_create] Could not convert face to connection.");
+        return -1;
+      }
+
+      /* Ensure we have a corresponding local listener */
+      if (hc_connection_to_local_listener(&connection, &listener) < 0) {
+        ERROR("[hc_face_create] Could not convert face to local listener.");
+        return -1;
+      }
+
+      if (_hcng_listener_get(socket, &listener, &listener_found) < 0) {
+        ERROR("[hc_face_create] Could not retrieve listener");
+        return -1;
+      }
+
+      if (!listener_found) {
+        /* We need to create the listener if it does not exist */
+        if (hc_listener_create(socket, &listener) < 0) {
+          ERROR("[hc_face_create] Could not create listener.");
+          free(listener_found);
+          return -1;
+        }
+      } else {
+        free(listener_found);
+      }
+
+      /* Create corresponding connection */
+      if (_hcng_connection_create(socket, &connection) < 0) {
+        ERROR("[hc_face_create] Could not create connection.");
+        return -1;
+      }
+
+      /*
+       * Once the connection is created, we need to list all connections
+       * and compare with the current one to find the created face ID.
+       */
+      if (_hcng_connection_get(socket, &connection, &connection_found) < 0) {
+        ERROR("[hc_face_create] Could not retrieve connection");
+        return -1;
+      }
+
+      if (!connection_found) {
+        ERROR("[hc_face_create] Could not find newly created connection.");
+        return -1;
+      }
+
+      face->id = connection_found->id;
+      free(connection_found);
+
+      break;
+
+    case FACE_TYPE_HICN_LISTENER:
+    case FACE_TYPE_TCP_LISTENER:
+    case FACE_TYPE_UDP_LISTENER:
+      if (hc_face_to_listener(face, &listener) < 0) {
+        ERROR("Could not convert face to listener.");
+        return -1;
+      }
+      if (hc_listener_create(socket, &listener) < 0) {
+        ERROR("[hc_face_create] Could not create listener.");
+        return -1;
+      }
+      break;
+    default:
+      ERROR("[hc_face_create] Unknwon face type.");
+
+      return -1;
+  };
+
+#endif
+  return 0;
+}
+
+static int _hcng_face_get(hc_sock_t *socket, hc_face_t *face,
+                          hc_face_t **face_found) {
+#if 0
+  hc_listener_t listener;
+  hc_listener_t *listener_found;
+
+  hc_connection_t connection;
+  hc_connection_t *connection_found;
+
+  char face_s[MAXSZ_HC_FACE];
+  int rc = hc_face_snprintf(face_s, MAXSZ_HC_FACE, face);
+  if (rc >= MAXSZ_HC_FACE)
+    WARN("[hc_face_get] Unexpected truncation of face string");
+  DEBUG("[hc_face_get] face=%s", face_s);
+
+  switch (face->face.type) {
+    case FACE_TYPE_HICN:
+    case FACE_TYPE_TCP:
+    case FACE_TYPE_UDP:
+      if (hc_face_to_connection(face, &connection, false) < 0) return -1;
+      if (_hcng_connection_get(socket, &connection, &connection_found) < 0)
+        return -1;
+      if (!connection_found) {
+        *face_found = NULL;
+        return 0;
+      }
+      *face_found = malloc(sizeof(hc_face_t));
+      hc_connection_to_face(connection_found, *face_found);
+      free(connection_found);
+      break;
+
+    case FACE_TYPE_HICN_LISTENER:
+    case FACE_TYPE_TCP_LISTENER:
+    case FACE_TYPE_UDP_LISTENER:
+      if (hc_face_to_listener(face, &listener) < 0) return -1;
+      if (_hcng_listener_get(socket, &listener, &listener_found) < 0) return -1;
+      if (!listener_found) {
+        *face_found = NULL;
+        return 0;
+      }
+      *face_found = malloc(sizeof(hc_face_t));
+      hc_listener_to_face(listener_found, *face_found);
+      free(listener_found);
+      break;
+
+    default:
+      return -1;
+  }
+
+#endif
+  return 0;
+}
+
+/* FACE DELETE */
+
+static int _hcng_face_delete(hc_sock_t *socket, hc_face_t *face,
+                             uint8_t delete_listener) {
+#if 0
+  char face_s[MAXSZ_HC_FACE];
+  int rc = hc_face_snprintf(face_s, MAXSZ_HC_FACE, face);
+  if (rc >= MAXSZ_HC_FACE)
+    WARN("[hc_face_delete] Unexpected truncation of face string");
+  DEBUG("[hc_face_delete] face=%s", face_s);
+
+  hc_connection_t connection;
+  if (hc_face_to_connection(face, &connection, false) < 0) {
+    ERROR("[hc_face_delete] Could not convert face to connection.");
+    return -1;
+  }
+
+  if (_hcng_connection_delete(socket, &connection) < 0) {
+    ERROR("[hc_face_delete] Error removing connection");
+    return -1;
+  }
+
+  if (!delete_listener) {
+    return 0;
+  }
+
+  /* If this is the last connection attached to the listener, remove it */
+
+  hc_data_t *connections;
+  hc_listener_t listener = {{0}};
+
+  /*
+   * Ensure we have a corresponding local listener
+   * NOTE: hc_face_to_listener is not appropriate
+   */
+  if (hc_connection_to_local_listener(&connection, &listener) < 0) {
+    ERROR("[hc_face_create] Could not convert face to local listener.");
+    return -1;
+  }
+#if 1
+  /*
+   * The name is generated to prepare listener creation, we need it to be
+   * empty for deletion. The id should not need to be reset though.
+   */
+  listener.id = 0;
+  memset(listener.name, 0, sizeof(listener.name));
+#endif
+  if (_hcng_connection_list(socket, &connections) < 0) {
+    ERROR("[hc_face_delete] Error getting the list of listeners");
+    return -1;
+  }
+
+  bool delete = true;
+  foreach_connection(c, connections) {
+    if ((ip_address_cmp(&c->local_addr, &listener.local_addr, c->family) ==
+         0) &&
+        (c->local_port == listener.local_port) &&
+        (strcmp(c->interface_name, listener.interface_name) == 0)) {
+      delete = false;
+    }
+  }
+
+  if (delete) {
+    if (_hcng_listener_delete(socket, &listener) < 0) {
+      ERROR("[hc_face_delete] Error removing listener");
+      return -1;
+    }
+  }
+
+  hc_data_free(connections);
+
+#endif
+  return 0;
+}
+
+/* FACE LIST */
+
+static int _hcng_face_list(hc_sock_t *socket, hc_data_t **pdata) {
+#if 0
+  hc_data_t *connection_data;
+  hc_face_t face;
+
+  DEBUG("[hc_face_list]");
+
+  if (_hcng_connection_list(socket, &connection_data) < 0) {
+    ERROR("[hc_face_list] Could not list connections.");
+    return -1;
+  }
+
+  hc_data_t *face_data =
+      hc_data_create(sizeof(hc_connection_t), sizeof(hc_face_t), NULL);
+  foreach_connection(c, connection_data) {
+    if (hc_connection_to_face(c, &face) < 0) {
+      ERROR("[hc_face_list] Could not convert connection to face.");
+      goto ERR;
+    }
+    hc_data_push(face_data, &face);
+  }
+
+  *pdata = face_data;
+  hc_data_free(connection_data);
+  DEBUG("[hc_face_list] done");
+  return 0;
+
+ERR:
+  hc_data_free(connection_data);
+  DEBUG("[hc_face_list] error");
+#endif
+  return -1;
+}
+
+static int hc_connection_parse_to_face(void *in, hc_face_t *face) {
+  hc_connection_t connection;
+
+  if (hcng_connection_parse(in, &connection) < 0) {
+    ERROR("[hc_connection_parse_to_face] Could not parse connection");
+    return -1;
+  }
+
+  if (hc_connection_to_face(&connection, face) < 0) {
+    ERROR(
+        "[hc_connection_parse_to_face] Could not convert connection to "
+        "face.");
+    return -1;
+  }
+
+  return 0;
+}
+
+static int _hcng_face_set_admin_state(hc_sock_t *s, const char *conn_id_or_name,
+                                      face_state_t admin_state) {
+  return hc_connection_set_admin_state(s, conn_id_or_name, admin_state);
+}
+
+static int _hcng_face_set_priority(hc_sock_t *s, const char *conn_id_or_name,
+                                   uint32_t priority) {
+  return hc_connection_set_priority(s, conn_id_or_name, priority);
+}
+
+static int _hcng_face_set_tags(hc_sock_t *s, const char *conn_id_or_name,
+                               policy_tags_t tags) {
+  return hc_connection_set_tags(s, conn_id_or_name, tags);
+}
+
+#endif
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/face.h b/ctrl/libhicnctrl/src/modules/hicn_light/face.h
new file mode 100644
index 000000000..9e1cd48c2
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/face.h
@@ -0,0 +1,14 @@
+#ifndef HICNCTRL_MODULE_HICNLIGHT_FACE
+#define HICNCTRL_MODULE_HICNLIGHT_FACE
+
+#include <hicn/ctrl/objects/connection.h>
+#include <hicn/ctrl/objects/face.h>
+
+int hc_face_from_connection(const hc_connection_t *connection, hc_face_t *face);
+
+int hc_face_to_connection(const hc_face_t *face, hc_connection_t *connection,
+                          bool generate_name);
+
+int hc_face_to_listener(const hc_face_t *face, hc_listener_t *listener);
+
+#endif /* HICNCTRL_MODULES_HICNLIGHT_FACE */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/listener.c b/ctrl/libhicnctrl/src/modules/hicn_light/listener.c
new file mode 100644
index 000000000..68d4b8fcd
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/listener.c
@@ -0,0 +1,176 @@
+/*
+ * 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.
+ */
+
+#include <assert.h>
+#include <hicn/ctrl/api.h>
+#include <hicn/util/log.h>
+
+#include "base.h"
+#include "../../object_private.h"
+#include "listener.h"
+
+static int hicnlight_listener_parse(const u8 *buffer, size_t size,
+                                    hc_listener_t *listener) {
+  int rc;
+
+  if (size != sizeof(cmd_listener_list_item_t)) return -1;
+  cmd_listener_list_item_t *item = (cmd_listener_list_item_t *)buffer;
+
+  if (!IS_VALID_ADDRESS(item->local_address)) {
+    ERROR("[hc_listener_parse] Invalid address received");
+    return -1;
+  }
+  if (!IS_VALID_NAME(item->name)) {
+    ERROR("[hc_listener_parse] Invalid name received");
+    return -1;
+  }
+  if (!IS_VALID_INTERFACE_NAME(item->interface_name)) {
+    ERROR("[hc_listener_parse] Invalid interface_name received");
+    return -1;
+  }
+  if (!IS_VALID_ID(item->id)) {
+    ERROR("[hc_listener_parse] Invalid id received");
+    return -1;
+  }
+  if (!IS_VALID_PORT(ntohs(item->local_port))) {
+    ERROR("[hc_listener_parse] Invalid port received");
+    return -1;
+  }
+  if (!IS_VALID_FAMILY(item->family)) {
+    ERROR("[hc_listener_parse] Invalid family received");
+    return -1;
+  }
+  if (!IS_VALID_TYPE(item->type)) {
+    ERROR("[hc_listener_parse] Invalid type received");
+    return -1;
+  }
+  // if (!(IS_VALID_CONNECTION_TYPE(item->type)))
+  //      return -1;
+
+  *listener = (hc_listener_t){
+      .id = item->id,
+      .type = (face_type_t)(item->type),
+      .family = (int)(item->family),
+      .local_addr =
+          item->local_addr,  // UNION_CAST(item->local_addr, ip_address_t),
+      .local_port = ntohs(item->local_port),
+  };
+
+  rc = snprintf(listener->name, SYMBOLIC_NAME_LEN, "%s", item->name);
+  if ((rc < 0) || (rc >= SYMBOLIC_NAME_LEN)) return -1;
+
+  rc = snprintf(listener->interface_name, INTERFACE_LEN, "%s",
+                item->interface_name);
+  if ((rc < 0) || (rc >= INTERFACE_LEN)) return -1;
+
+  if (hc_listener_validate(listener, false) < 0) return -1;
+  return 0;
+}
+
+int _hicnlight_listener_parse(const uint8_t *buffer, size_t size,
+                              hc_object_t *object) {
+  return hicnlight_listener_parse(buffer, size, &object->listener);
+}
+
+/* LISTENER CREATE */
+
+int hicnlight_listener_serialize_create(const hc_object_t *object,
+                                        uint8_t *packet) {
+  int rc;
+  const hc_listener_t *listener = &object->listener;
+
+  msg_listener_add_t *msg = (msg_listener_add_t *)packet;
+  *msg = (msg_listener_add_t){.header =
+                                  {
+                                      .message_type = REQUEST_LIGHT,
+                                      .command_id = COMMAND_TYPE_LISTENER_ADD,
+                                      .length = 1,
+                                      .seq_num = 0,
+                                  },
+
+                              .payload = {
+                                  .address = listener->local_addr,
+                                  .port = htons(listener->local_port),
+                                  .family = (uint8_t)listener->family,
+                                  .type = (uint8_t)listener->type,
+                              }};
+
+  rc = snprintf(msg->payload.symbolic, SYMBOLIC_NAME_LEN, "%s", listener->name);
+  if ((rc < 0) || (rc >= SYMBOLIC_NAME_LEN)) return -1;
+
+  rc = snprintf(msg->payload.interface_name, INTERFACE_LEN, "%s",
+                listener->interface_name);
+  if ((rc < 0) || (rc >= INTERFACE_LEN)) return -1;
+
+  return sizeof(msg_listener_add_t);
+}
+
+/* LISTENER DELETE */
+
+int hicnlight_listener_serialize_delete(const hc_object_t *object,
+                                        uint8_t *packet) {
+  int rc;
+  const hc_listener_t *listener = &object->listener;
+
+  msg_listener_remove_t *msg = (msg_listener_remove_t *)packet;
+  *msg = (msg_listener_remove_t){.header = {
+                                     .message_type = REQUEST_LIGHT,
+                                     .command_id = COMMAND_TYPE_LISTENER_REMOVE,
+                                     .length = 1,
+                                     .seq_num = 0,
+                                 }};
+
+  if (listener->id) {
+    rc = snprintf(msg->payload.symbolicOrListenerid, SYMBOLIC_NAME_LEN, "%d",
+                  listener->id);
+  } else if (*listener->name) {
+    rc = snprintf(msg->payload.symbolicOrListenerid, SYMBOLIC_NAME_LEN, "%s",
+                  listener->name);
+  } else {
+    return -1;
+  }
+
+  // For now we only support delete by name or id
+#if 0
+    hc_listener_t *listener_found;
+    if (hc_listener_get(socket, listener, &listener_found) < 0) return -1;
+    if (!listener_found) return -1;
+    rc = snprintf(payload->symbolicOrListenerid, SYMBOLIC_NAME_LEN, "%d",
+                  listener_found->id);
+    free(listener_found);
+  }
+#endif
+
+  if ((rc < 0) || (rc >= SYMBOLIC_NAME_LEN)) return -1;
+
+  return sizeof(msg_listener_remove_t);
+}
+
+/* LISTENER LIST */
+
+int hicnlight_listener_serialize_list(const hc_object_t *object,
+                                      uint8_t *packet) {
+  msg_listener_list_t *msg = (msg_listener_list_t *)packet;
+  *msg = (msg_listener_list_t){.header = {
+                                   .message_type = REQUEST_LIGHT,
+                                   .command_id = COMMAND_TYPE_LISTENER_LIST,
+                                   .length = 0,
+                                   .seq_num = 0,
+                               }};
+
+  return sizeof(msg_header_t);  // Do not use msg_listener_list_t
+}
+
+DECLARE_MODULE_OBJECT_OPS(hicnlight, listener);
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/listener.h b/ctrl/libhicnctrl/src/modules/hicn_light/listener.h
new file mode 100644
index 000000000..27ef8434d
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/listener.h
@@ -0,0 +1,21 @@
+#ifndef HICNCTRL_MODULE_HICNLIGHT_LISTENER_H
+#define HICNCTRL_MODULE_HICNLIGHT_LISTENER_H
+
+#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/mapme.c b/ctrl/libhicnctrl/src/modules/hicn_light/mapme.c
new file mode 100644
index 000000000..de75d82a8
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/mapme.c
@@ -0,0 +1,139 @@
+#include "mapme.h"
+
+static int _hcng_mapme_set(hc_sock_t *socket, int enabled) {
+#if 0
+  msg_mapme_enable_t msg = {.header =
+                                {
+                                    .message_type = REQUEST_LIGHT,
+                                    .command_id = COMMAND_TYPE_MAPME_ENABLE,
+                                    .length = 1,
+                                    .seq_num = 0,
+                                },
+                            .payload = {
+                                .activate = enabled,
+                            }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SET,
+      .cmd_id = COMMAND_TYPE_MAPME_ENABLE,
+      .size_in = sizeof(cmd_mapme_enable_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, false);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_mapme_set_discovery(hc_sock_t *socket, int enabled) {
+#if 0
+  msg_mapme_enable_t msg = {
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_MAPME_SET_DISCOVERY,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload = {
+          .activate = enabled,
+      }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SET,
+      .cmd_id = COMMAND_TYPE_MAPME_SET_DISCOVERY,
+      .size_in = sizeof(cmd_mapme_set_discovery_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, false);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_mapme_set_timescale(hc_sock_t *socket, uint32_t timescale) {
+#if 0
+  msg_mapme_set_timescale_t msg = {
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_MAPME_SET_TIMESCALE,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload = {
+          .timePeriod = timescale,
+      }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SET,
+      .cmd_id = COMMAND_TYPE_MAPME_SET_TIMESCALE,
+      .size_in = sizeof(cmd_mapme_set_timescale_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, false);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_mapme_set_retx(hc_sock_t *socket, uint32_t timescale) {
+#if 0
+  msg_mapme_set_retx_t msg = {.header =
+                                  {
+                                      .message_type = REQUEST_LIGHT,
+                                      .command_id = COMMAND_TYPE_MAPME_SET_RETX,
+                                      .length = 1,
+                                      .seq_num = 0,
+                                  },
+                              .payload = {
+                                  .timePeriod = timescale,
+                              }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SET,
+      .cmd_id = COMMAND_TYPE_MAPME_SET_RETX,
+      .size_in = sizeof(msg_mapme_set_retx_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, false);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_mapme_send_update(hc_sock_t *socket, hc_mapme_t *mapme) {
+#if 0
+  if (!IS_VALID_FAMILY(mapme->family)) return -1;
+
+  msg_mapme_send_update_t msg = {
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_MAPME_SEND_UPDATE,
+              .length = 1,
+              .seq_num = 0,
+          },
+  };
+
+  hc_command_params_t params = {
+      .cmd = ACTION_UPDATE,
+      .cmd_id = COMMAND_TYPE_MAPME_SEND_UPDATE,
+      .size_in = sizeof(msg_mapme_send_update_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, false);
+#endif
+  return 0;  // XXX added
+}
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/policy.c b/ctrl/libhicnctrl/src/modules/hicn_light/policy.c
new file mode 100644
index 000000000..d48ce014d
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/policy.c
@@ -0,0 +1,162 @@
+#include "policy.h"
+
+/* POLICY CREATE */
+
+static int _hcng_policy_create_internal(hc_sock_t *socket, hc_policy_t *policy,
+                                        bool async) {
+#if 0
+  if (!IS_VALID_FAMILY(policy->family)) return -1;
+
+  struct {
+    cmd_header_t hdr;
+    cmd_policy_add_t payload;
+  } msg = {.hdr =
+               {
+                   .message_type = REQUEST_LIGHT,
+                   COMMAND_TYPE_POLICY_ADD,
+                   .length = 1,
+                   .seq_num = 0,
+               },
+           .payload = {
+               .address = policy->remote_addr,
+               .family = policy->family,
+               .len = policy->len,
+               .policy = policy->policy,
+           }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_CREATE,
+      .cmd_id = COMMAND_TYPE_POLICY_ADD,
+      .size_in = sizeof(cmd_policy_add_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, async);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_policy_create(hc_sock_t *s, hc_policy_t *policy) {
+  return _hcng_policy_create_internal(s, policy, false);
+}
+
+static int _hcng_policy_create_async(hc_sock_t *s, hc_policy_t *policy) {
+  return _hcng_policy_create_internal(s, policy, true);
+}
+
+/* POLICY DELETE */
+
+static int _hcng_policy_delete_internal(hc_sock_t *socket, hc_policy_t *policy,
+                                        bool async) {
+#if 0
+  if (!IS_VALID_FAMILY(policy->family)) return -1;
+
+  struct {
+    cmd_header_t hdr;
+    cmd_policy_remove_t payload;
+  } msg = {.hdr =
+               {
+                   .message_type = REQUEST_LIGHT,
+                   .command_id = COMMAND_TYPE_POLICY_REMOVE,
+                   .length = 1,
+                   .seq_num = 0,
+               },
+           .payload = {
+               .address = policy->remote_addr,
+               .family = policy->family,
+               .len = policy->len,
+           }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_DELETE,
+      .cmd_id = COMMAND_TYPE_POLICY_REMOVE,
+      .size_in = sizeof(cmd_policy_remove_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, async);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_policy_delete(hc_sock_t *s, hc_policy_t *policy) {
+  return _hcng_policy_delete_internal(s, policy, false);
+}
+
+static int _hcng_policy_delete_async(hc_sock_t *s, hc_policy_t *policy) {
+  return _hcng_policy_delete_internal(s, policy, true);
+}
+
+/* POLICY PARSE */
+
+static int hc_policy_parse(void *in, hc_policy_t *policy) {
+  hc_policy_t *item = (hc_policy_t *)in;
+
+  if (!IS_VALID_ADDRESS(item->address)) {
+    ERROR("[hc_policy_parse] Invalid address");
+    return -1;
+  }
+  if (!IS_VALID_FAMILY(item->family)) {
+    ERROR("[hc_policy_parse] Invalid family");
+    return -1;
+  }
+  if (!IS_VALID_PREFIX_LEN(item->len)) {
+    ERROR("[hc_policy_parse] Invalid len");
+    return -1;
+  }
+  if (!IS_VALID_POLICY(item->policy)) {
+    ERROR("[hc_policy_parse] Invalid policy");
+    return -1;
+  }
+
+  *policy = (hc_policy_t){
+      .family = item->family,
+      .remote_addr = item->remote_addr,
+      .len = item->len,
+      .policy = item->policy,
+  };
+  return 0;
+}
+
+/* POLICY LIST */
+
+static int _hcng_policy_list_internal(hc_sock_t *socket, hc_data_t **pdata,
+                                      bool async) {
+#if 0
+  struct {
+    cmd_header_t hdr;
+  } msg = {
+      .hdr =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_POLICY_LIST,
+              .length = 0,
+              .seq_num = 0,
+          },
+  };
+
+  hc_command_params_t params = {
+      .cmd = ACTION_LIST,
+      .cmd_id = COMMAND_TYPE_POLICY_LIST,
+      .size_in = sizeof(hc_policy_t),
+      .size_out = sizeof(hc_policy_t),
+      .parse = (HC_PARSE)hc_policy_parse,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               pdata, async);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_policy_list(hc_sock_t *s, hc_data_t **pdata) {
+  return _hcng_policy_list_internal(s, pdata, false);
+}
+
+static int _hcng_policy_list_async(hc_sock_t *s, hc_data_t **pdata) {
+  return _hcng_policy_list_internal(s, pdata, true);
+}
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/punting.c b/ctrl/libhicnctrl/src/modules/hicn_light/punting.c
new file mode 100644
index 000000000..7886ff839
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/punting.c
@@ -0,0 +1,74 @@
+#include "punting.h"
+
+static int _hcng_punting_create_internal(hc_sock_t *socket,
+                                         hc_punting_t *punting, bool async) {
+#if 0
+  int rc;
+
+  if (hc_punting_validate(punting) < 0) return -1;
+
+  struct {
+    cmd_header_t hdr;
+    cmd_punting_add_t payload;
+  } msg = {.hdr =
+               {
+                   .message_type = REQUEST_LIGHT,
+                   .command_id = COMMAND_TYPE_PUNTING_ADD,
+                   .length = 1,
+                   .seq_num = 0,
+               },
+           .payload = {
+               .address = punting->prefix,
+               .family = punting->family,
+               .len = punting->prefix_len,
+           }};
+  rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d",
+                punting->face_id);
+  if (rc >= SYMBOLIC_NAME_LEN)
+    WARN("[_hc_punting_create] Unexpected truncation of symbolic name string");
+
+  hc_command_params_t params = {
+      .cmd = ACTION_CREATE,
+      .cmd_id = COMMAND_TYPE_PUNTING_ADD,
+      .size_in = sizeof(cmd_punting_add_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), &params,
+                               NULL, async);
+#endif
+  return 0;  // XXX added
+}
+
+static int _hcng_punting_create(hc_sock_t *s, hc_punting_t *punting) {
+  return _hcng_punting_create_internal(s, punting, false);
+}
+
+static int _hcng_punting_create_async(hc_sock_t *s, hc_punting_t *punting) {
+  return _hcng_punting_create_internal(s, punting, true);
+}
+
+static int _hcng_punting_get(hc_sock_t *s, hc_punting_t *punting,
+                             hc_punting_t **punting_found) {
+  ERROR("hc_punting_get not (yet) implemented.");
+  return -1;
+}
+
+static int _hcng_punting_delete(hc_sock_t *s, hc_punting_t *punting) {
+  ERROR("hc_punting_delete not (yet) implemented.");
+  return -1;
+}
+
+#if 0
+static int hc_punting_parse(void * in, hc_punting_t * punting)
+{
+    ERROR("hc_punting_parse not (yet) implemented.");
+    return -1;
+}
+#endif
+
+static int _hcng_punting_list(hc_sock_t *s, hc_data_t **pdata) {
+  ERROR("hc_punting_list not (yet) implemented.");
+  return -1;
+}
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/route.c b/ctrl/libhicnctrl/src/modules/hicn_light/route.c
new file mode 100644
index 000000000..1adfe4f36
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/route.c
@@ -0,0 +1,173 @@
+/*
+ * 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 modules/hicn_light/route.c
+ * \brief Implementation of route object VFT for hicn_light.
+ */
+
+#include <assert.h>
+#include <hicn/ctrl/api.h>
+#include <hicn/util/log.h>
+#include "base.h"
+#include "route.h"
+#include <hicn/ctrl/hicn-light.h>
+
+#include "../../object_private.h"
+
+static int hicnlight_route_parse(const uint8_t *buffer, size_t size,
+                                 hc_route_t *route) {
+  if (size != sizeof(cmd_route_list_item_t)) return -1;
+  cmd_route_list_item_t *item = (cmd_route_list_item_t *)buffer;
+
+  if (!IS_VALID_NAME(item->face_name)) {
+    ERROR("[hc_connection_parse] Invalid face_name received");
+    return -1;
+  }
+
+  if (!IS_VALID_ID(item->face_id)) {
+    ERROR("[hc_connection_parse] Invalid face_id received");
+    return -1;
+  }
+
+  if (!IS_VALID_FAMILY(item->family)) {
+    ERROR("[hc_listener_parse] Invalid family received");
+    return -1;
+  }
+
+  if (!IS_VALID_ADDRESS(item->remote_addr)) {
+    ERROR("[hc_connection_parse] Invalid address received");
+    return -1;
+  }
+
+  // LEN
+  // COST
+
+  *route = (hc_route_t){
+      .face_name = "", /* This is not reported back */
+      .face_id = item->face_id,
+      .family = (int)(item->family),
+      .remote_addr = item->remote_addr,
+      .len = item->len,
+      .cost = item->cost,
+  };
+
+  if (hc_route_validate(route, false) < 0) return -1;
+  return 0;
+}
+
+int _hicnlight_route_parse(const uint8_t *buffer, size_t size,
+                           hc_object_t *object) {
+  return hicnlight_route_parse(buffer, size, &object->route);
+}
+
+/* ROUTE CREATE */
+
+int hicnlight_route_serialize_create(const hc_object_t *object,
+                                     uint8_t *packet) {
+  const hc_route_t *route = &object->route;
+  int rc;
+
+  msg_route_add_t *msg = (msg_route_add_t *)packet;
+  *msg = (msg_route_add_t){.header =
+                               {
+                                   .message_type = REQUEST_LIGHT,
+                                   .command_id = COMMAND_TYPE_ROUTE_ADD,
+                                   .length = 1,
+                                   .seq_num = 0,
+                               },
+                           .payload = {
+                               .address = route->remote_addr,
+                               .cost = route->cost,
+                               .family = route->family,
+                               .len = route->len,
+                           }};
+
+  /*
+   * The route commands expects the ID or name as part of the
+   * symbolic_or_connid attribute.
+   */
+  if (route->face_name[0] != '\0') {
+    rc = snprintf(msg->payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s",
+                  route->face_name);
+  } else {
+    rc = snprintf(msg->payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d",
+                  route->face_id);
+  }
+
+  if ((rc < 0) || (rc >= SYMBOLIC_NAME_LEN)) return -1;
+
+  return sizeof(msg_route_add_t);
+}
+
+/* ROUTE DELETE */
+
+int hicnlight_route_serialize_delete(const hc_object_t *object,
+                                     uint8_t *packet) {
+  const hc_route_t *route = &object->route;
+  int rc;
+
+  msg_route_remove_t *msg = (msg_route_remove_t *)packet;
+  memset(msg, 0, sizeof(msg_route_remove_t));
+  *msg = (msg_route_remove_t){.header =
+                                  {
+                                      .message_type = REQUEST_LIGHT,
+                                      .command_id = COMMAND_TYPE_ROUTE_REMOVE,
+                                      .length = 1,
+                                      .seq_num = 0,
+                                  },
+                              .payload = {
+                                  .family = (uint8_t)route->family,
+                                  .len = route->len,
+                              }};
+
+  /*
+   * Direct copy as part of the previous assignment does not work correctly...
+   * to be investigated
+   */
+  memcpy(&msg->payload.address, &route->remote_addr, sizeof(hicn_ip_address_t));
+
+  /*
+   * The route commands expects the ID or name as part of the
+   * symbolic_or_connid attribute.
+   */
+  if (route->face_name[0] != '\0') {
+    rc = snprintf(msg->payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s",
+                  route->face_name);
+  } else {
+    rc = snprintf(msg->payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d",
+                  route->face_id);
+  }
+
+  if ((rc < 0) || (rc >= SYMBOLIC_NAME_LEN)) return -1;
+
+  return sizeof(msg_route_remove_t);
+}
+
+/* ROUTE LIST */
+
+int hicnlight_route_serialize_list(const hc_object_t *object, uint8_t *packet) {
+  msg_route_list_t *msg = (msg_route_list_t *)packet;
+  *msg = (msg_route_list_t){.header = {
+                                .message_type = REQUEST_LIGHT,
+                                .command_id = COMMAND_TYPE_ROUTE_LIST,
+                                .length = 0,
+                                .seq_num = 0,
+                            }};
+
+  return sizeof(msg_header_t);  // Do not use msg_route_list_t
+}
+
+DECLARE_MODULE_OBJECT_OPS(hicnlight, route);
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/route.h b/ctrl/libhicnctrl/src/modules/hicn_light/route.h
new file mode 100644
index 000000000..e86e8b8c3
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/route.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2021 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/route.h
+ * \brief route object VFT for hicn_light.
+ */
+
+#ifndef HICNCTRL_MODULE_HICNLIGHT_ROUTE_H
+#define HICNCTRL_MODULE_HICNLIGHT_ROUTE_H
+
+#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.h b/ctrl/libhicnctrl/src/modules/hicn_light/stats.h
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/stats.h
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/strategy.c b/ctrl/libhicnctrl/src/modules/hicn_light/strategy.c
new file mode 100644
index 000000000..35e241f3e
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/strategy.c
@@ -0,0 +1,205 @@
+#include <assert.h>
+#include "strategy.h"
+
+#include <hicn/ctrl/hicn-light.h>
+
+static int hicnlight_strategy_parse(const u8 *buffer, size_t size,
+                                    hc_strategy_t *strategy) {
+  return -1;
+}
+
+int _hicnlight_strategy_parse(const uint8_t *buffer, size_t size,
+                              hc_object_t *object) {
+  return hicnlight_strategy_parse(buffer, size, &object->strategy);
+}
+
+int hicnlight_strategy_serialize_create(const hc_object_t *object,
+                                        uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_strategy_serialize_delete(const hc_object_t *object,
+                                        uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_strategy_serialize_list(const hc_object_t *object,
+                                      uint8_t *packet) {
+  assert(!object);
+  return -1;
+}
+#if 0
+// per prefix
+static hc_result_t *_strategy_set_serialize(hc_sock_t *socket,
+                                            hc_strategy_t *strategy) {
+  return -1;
+  hc_result_t *res = malloc(sizeof(*res));
+  char strategy_s[MAXSZ_HC_STRATEGY];
+  strncpy(strategy->name, strategy_str(strategy->type),
+          MAXSZ_STRATEGY_NAME - 1);
+
+  int rc = hc_strategy_snprintf(strategy_s, MAXSZ_HC_STRATEGY, strategy);
+  if (rc >= MAXSZ_HC_STRATEGY)
+    WARN("[hicnlight_strategy_create] Unexpected truncation of strategy string");
+  DEBUG("[hicnlight_strategy_create] strategy=%s", strategy_s);
+
+  if (!IS_VALID_FAMILY(strategy->family) ||
+      !IS_VALID_STRATEGY_TYPE(strategy->type)) {
+    res->success = false;
+    return res;
+  }
+
+  msg_strategy_set_t msg = {.header =
+                                {
+                                    .message_type = REQUEST_LIGHT,
+                                    .command_id = COMMAND_TYPE_STRATEGY_SET,
+                                    .length = 1,
+                                    .seq_num = 0,
+                                },
+                            .payload = {
+                                .address = strategy->address,
+                                .family = strategy->family,
+                                .len = strategy->len,
+                                .type = strategy->type,
+                            }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SET,
+      .cmd_id = COMMAND_TYPE_STRATEGY_SET,
+      .size_in = sizeof(cmd_strategy_set_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  *res = (hc_result_t){
+      .msg =
+          (hc_msg_t){
+              .header = msg.header,
+              .payload.strategy_set = msg.payload,
+          },
+      .params = params,
+      .async = false,
+      .success = true,
+  };
+  return res;
+}
+#endif
+
+#if 0
+static hc_result_t *_strategy_add_local_prefix_serialize(
+    hc_sock_t *socket, hc_strategy_t *strategy) {
+  hc_result_t *res = malloc(sizeof(*res));
+  char strategy_s[MAXSZ_HC_STRATEGY];
+  strncpy(strategy->name, strategy_str(strategy->type),
+          MAXSZ_STRATEGY_NAME - 1);
+
+  int rc = hc_strategy_snprintf(strategy_s, MAXSZ_HC_STRATEGY, strategy);
+  if (rc >= MAXSZ_HC_STRATEGY)
+    WARN("[hicnlight_strategy_create] Unexpected truncation of strategy string");
+  DEBUG("[hicnlight_strategy_create] strategy=%s", strategy_s);
+
+  if (!IS_VALID_FAMILY(strategy->family) ||
+      !IS_VALID_STRATEGY_TYPE(strategy->type) ||
+      !IS_VALID_FAMILY(strategy->local_family)) {
+    res->success = false;
+    return res;
+  }
+
+  msg_strategy_add_local_prefix_t msg = {
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_STRATEGY_ADD_LOCAL_PREFIX,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload = {
+          .type = strategy->type,
+          .address = strategy->address,
+          .family = strategy->family,
+          .len = strategy->len,
+          .local_address = strategy->local_address,
+          .local_family = strategy->local_family,
+          .local_len = strategy->local_len,
+      }};
+
+  hc_command_params_t params = {
+      .cmd = ACTION_SET,
+      .cmd_id = COMMAND_TYPE_STRATEGY_ADD_LOCAL_PREFIX,
+      .size_in = sizeof(cmd_strategy_add_local_prefix_t),
+      .size_out = 0,
+      .parse = NULL,
+  };
+
+  *res = (hc_result_t){
+      .msg =
+          (hc_msg_t){
+              .header = msg.header,
+              .payload.strategy_add_local_prefix = msg.payload,
+          },
+      .params = params,
+      .async = false,
+      .success = true,
+  };
+  return res;
+}
+#endif
+
+#if 0
+static int hicnlight_strategy_set(hc_sock_t *socket, hc_strategy_t *strategy) {
+  hc_result_t *result = _strategy_set_serialize(socket, strategy);
+
+  int ret = INPUT_ERROR;
+  if (result->success) {
+    ret = hicnlight_execute_command(socket, (hc_msg_t *)&result->msg,
+                                sizeof(result->msg), &result->params, NULL,
+                                result->async);
+  }
+
+  hc_result_free(result);
+  return ret;
+  return -1;  // XXX added
+}
+
+static int hicnlight_strategy_add_local_prefix(hc_sock_t *socket,
+                                               hc_strategy_t *strategy) {
+  hc_result_t *result = _strategy_add_local_prefix_serialize(socket, strategy);
+
+  int ret = INPUT_ERROR;
+  if (result->success) {
+    ret = hicnlight_execute_command(socket, (hc_msg_t *)&result->msg,
+                                sizeof(result->msg), &result->params, NULL,
+                                result->async);
+  }
+
+  hc_result_free(result);
+  return ret;
+  return -1;  // XXX added
+}
+
+/* How to retrieve that from the forwarder ? */
+static const char *strategies[] = {
+    "random",
+    "load_balancer",
+};
+
+#define ARRAY_SIZE(array) (sizeof(array) / sizeof(*array))
+
+static int hicnlight_strategy_list(hc_sock_t *s, hc_data_t **data) {
+  int rc;
+
+  *data = hc_data_create(0, sizeof(hc_strategy_t), NULL);
+
+  for (unsigned i = 0; i < ARRAY_SIZE(strategies); i++) {
+    hc_strategy_t *strategy = (hc_strategy_t *)hc_data_get_next(*data);
+    if (!strategy) return -1;
+    rc = snprintf(strategy->name, MAXSZ_STRATEGY_NAME, "%s", strategies[i]);
+    if (rc >= MAXSZ_STRATEGY_NAME)
+      WARN("[hc_strategy_list] Unexpected truncation of strategy name string");
+    (*data)->size++;
+  }
+  return -1;
+}
+#endif
+
+DECLARE_MODULE_OBJECT_OPS(hicnlight, strategy);
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h b/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h
new file mode 100644
index 000000000..6b1933960
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h
@@ -0,0 +1,24 @@
+#ifndef HICNCTRL_MODULE_HICNLIGHT_STRATEGY_H
+#define HICNCTRL_MODULE_HICNLIGHT_STRATEGY_H
+
+#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.c b/ctrl/libhicnctrl/src/modules/hicn_light/subscription.c
new file mode 100644
index 000000000..d00055e89
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/subscription.c
@@ -0,0 +1,66 @@
+#include <assert.h>
+#include <hicn/ctrl/api.h>
+#include <hicn/util/log.h>
+
+#include "base.h"
+#include "../../object_private.h"
+#include "subscription.h"
+
+static int hicnlight_subscription_parse(const u8 *buffer, size_t size,
+                                        hc_subscription_t *subscription) {
+  /* We should never have to parse subscriptions */
+  return -1;
+}
+
+int _hicnlight_subscription_parse(const uint8_t *buffer, size_t size,
+                                  hc_object_t *object) {
+  return hicnlight_subscription_parse(buffer, size, &object->subscription);
+}
+
+/* SUBSCRIPTION CREATE */
+
+int hicnlight_subscription_serialize_create(const hc_object_t *object,
+                                            uint8_t *packet) {
+  const hc_subscription_t *subscription = &object->subscription;
+
+  msg_subscription_add_t *msg = (msg_subscription_add_t *)packet;
+  *msg = (msg_subscription_add_t){
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_SUBSCRIPTION_ADD,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload = {.topics = subscription->topics}};
+
+  return sizeof(msg_subscription_add_t);
+}
+
+/* SUBSCRIPTION DELETE */
+
+int hicnlight_subscription_serialize_delete(const hc_object_t *object,
+                                            uint8_t *packet) {
+  const hc_subscription_t *subscription = &object->subscription;
+
+  msg_subscription_remove_t *msg = (msg_subscription_remove_t *)packet;
+  *msg = (msg_subscription_remove_t){
+      .header =
+          {
+              .message_type = REQUEST_LIGHT,
+              .command_id = COMMAND_TYPE_SUBSCRIPTION_REMOVE,
+              .length = 1,
+              .seq_num = 0,
+          },
+      .payload = {.topics = subscription->topics}};
+
+  return sizeof(msg_subscription_remove_t);
+}
+
+int hicnlight_subscription_serialize_list(const hc_object_t *object,
+                                          uint8_t *packet) {
+  assert(!object);
+  return -1;
+}
+
+DECLARE_MODULE_OBJECT_OPS(hicnlight, subscription);
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h b/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h
new file mode 100644
index 000000000..a4edf556b
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h
@@ -0,0 +1,26 @@
+#ifndef HICNCTRL_MODULE_HICNLIGHT_SUBSCRIPTION_H
+#define HICNCTRL_MODULE_HICNLIGHT_SUBSCRIPTION_H
+
+#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/modules/hicn_light/wldr.c b/ctrl/libhicnctrl/src/modules/hicn_light/wldr.c
new file mode 100644
index 000000000..7d1812ab2
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/wldr.c
@@ -0,0 +1,3 @@
+#include "wldr.h"
+
+static int _hcng_wldr_set(hc_sock_t *s /* XXX */) { return 0; }