[HICN-403] update vapi communication with vpp

Signed-off-by: Masoud Hemmatpour <mhemmatp@cisco.com>
Change-Id: I6e05d96af049229a6dc2da0adf32707873cdc816
Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>

15 files changed, 808 insertions, 1075 deletions

diff --git a/cmake/Modules/BuildMacros.cmake b/cmake/Modules/BuildMacros.cmake
index 85789a08a..ed767dbcc 100644
--- a/cmake/Modules/BuildMacros.cmake
+++ b/cmake/Modules/BuildMacros.cmake
@@ -73,7 +73,7 @@ macro(build_library lib)
   cmake_parse_arguments(ARG
     "SHARED;STATIC;NO_DEV"
     "COMPONENT;"
-    "SOURCES;LINK_LIBRARIES;INSTALL_HEADERS;DEPENDS;INCLUDE_DIRS;DEFINITIONS;INSTALL_ROOT_DIR"
+    "SOURCES;LINK_LIBRARIES;INSTALL_HEADERS;DEPENDS;INCLUDE_DIRS;DEFINITIONS;INSTALL_ROOT_DIR;INSTALL_FULL_PATH_DIR"
     ${ARGN}
   )
 
@@ -145,11 +145,17 @@ macro(build_library lib)
       )
     endif()
 
+    set(INSTALL_LIB_PATH ${CMAKE_INSTALL_LIBDIR})
+
+    if (ARG_INSTALL_FULL_PATH_DIR)
+      set(INSTALL_LIB_PATH ${ARG_INSTALL_FULL_PATH_DIR})
+    endif()
+
     install(
       TARGETS ${library}
       RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
       ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-      LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+      LIBRARY DESTINATION ${INSTALL_LIB_PATH}
       COMPONENT ${ARG_COMPONENT}
     )
 
@@ -160,7 +166,6 @@ macro(build_library lib)
 
   # install headers
   if(ARG_INSTALL_HEADERS)
-
     if (NOT ARG_INSTALL_ROOT_DIR)
       set(ARG_INSTALL_ROOT_DIR "hicn")
     endif()
diff --git a/cmake/Modules/FindSysrepo.cmake b/cmake/Modules/FindSysrepo.cmake
index 4228ef93a..1c389e480 100644
--- a/cmake/Modules/FindSysrepo.cmake
+++ b/cmake/Modules/FindSysrepo.cmake
@@ -43,4 +43,4 @@ set(SYSREPO_INCLUDE_DIRS ${SYSREPO_INCLUDE_DIR} ${SYSREPO_INCLUDE_MAIN_DIR})
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(Sysrepo DEFAULT_MSG SYSREPO_LIBRARIES SYSREPO_INCLUDE_DIRS)
 
-mark_as_advanced(SYSREPO_LIBRARY SYSREPO_INCLUDE_DIR SYSREPO_INCLUDE_MAIN_DIR)
\ No newline at end of file
+mark_as_advanced(SYSREPO_LIBRARY SYSREPO_INCLUDE_DIR SYSREPO_INCLUDE_MAIN_DIR)
diff --git a/ctrl/sysrepo-plugins/AUTHORS b/ctrl/sysrepo-plugins/AUTHORS
new file mode 100644
index 000000000..35097a36c
--- /dev/null
+++ b/ctrl/sysrepo-plugins/AUTHORS
@@ -0,0 +1,5 @@
+hicn sysrepo plugin authors are listed below:
+
+    Masoud Hemmatpour <mhemmatp@cisco.com>
+    Alberto Compagno <acompagn@cisco.com>
+    Luca Muscariello <lumuscar@cisco.com>
diff --git a/ctrl/sysrepo-plugins/CMakeLists.txt b/ctrl/sysrepo-plugins/CMakeLists.txt
index 93434b9c6..13a601bf0 100644
--- a/ctrl/sysrepo-plugins/CMakeLists.txt
+++ b/ctrl/sysrepo-plugins/CMakeLists.txt
@@ -16,29 +16,37 @@
 cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
 project(hicn_sysrepo_plugin)
 
-include(GNUInstallDirs)
-
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
 "${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Modules"
 )
 
-# set default build type if not specified by user
-if(NOT CMAKE_BUILD_TYPE)
-    set(CMAKE_BUILD_TYPE debug)
+include(GNUInstallDirs)
+include(BuildMacros)
+
+find_package(PkgConfig)
+find_package(Sysrepo)
+
+if (NOT SRPD_PLUGINS_PATH)
+    if (PKG_CONFIG_FOUND)
+        execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} "--variable=SRPD_PLUGINS_PATH" "libsysrepo" OUTPUT_VARIABLE SRPD_PLUGINS_PATH)
+        string(STRIP ${SRPD_PLUGINS_PATH} SRPD_PLUGINS_PATH)
+    endif()
+endif()
+if (NOT SRPD_PLUGINS_PATH)
+    message(FATAL_ERROR "Cannot get sysrepo plugins directory due to missing pkg-config, set SRPD_PLUGINS_PATH manually.")
 endif()
-string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER)
 
-# set compiler options
-set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -std=gnu99")
-set(CMAKE_C_FLAGS_RELEASE "-DNDEBUG -O2")
-set(CMAKE_C_FLAGS_DEBUG   "-g -O0")
+if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+   find_package_wrapper(VPP REQUIRED)
+   find_package_wrapper(HicnPlugin REQUIRED)
+   add_subdirectory(hicn-plugin)
+else()
+    if (BUILD_HICNPLUGIN AND "${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
+        list(APPEND DEPENDENCIES
+            hicn_plugin)
+	add_subdirectory(hicn-plugin)
+    endif ()
+endif()
 
 # add subdirectories
-if (BUILD_HICNPLUGIN AND "${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
-    add_subdirectory(hicn-plugin)
-endif ()
-if (BUILD_HICNLIGHT AND "${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
-    add_subdirectory(hicn-light)
-endif ()
 include(Packaging)
diff --git a/ctrl/sysrepo-plugins/hicn-light/plugin/hicn_light.c b/ctrl/sysrepo-plugins/hicn-light/plugin/hicn_light.c
index ae436a8ad..6cfc0b52b 100644
--- a/ctrl/sysrepo-plugins/hicn-light/plugin/hicn_light.c
+++ b/ctrl/sysrepo-plugins/hicn-light/plugin/hicn_light.c
@@ -27,7 +27,6 @@ sr_subscription_ctx_t *subscription = NULL;
 volatile int exit_application = 0;
 
 int sr_plugin_init_cb(sr_session_ctx_t *session, void **private_ctx) {
-  HICN_INVOKE_BEGIN
   sr_subscription_ctx_t *subscription = NULL;
   int rc = SR_ERR_OK;
   rc = hicn_connect_light();
@@ -36,24 +35,20 @@ int sr_plugin_init_cb(sr_session_ctx_t *session, void **private_ctx) {
     return SR_ERR_INTERNAL;
   }
 
-  // HICN subscribe
   hicn_subscribe_events(session, &subscription);
 
 
   /* set subscription as our private context */
   *private_ctx = subscription;
-  HICN_INVOKE_END;
   return SR_ERR_OK;
 }
 
 void sr_plugin_cleanup_cb(sr_session_ctx_t *session, void *private_ctx) {
-  HICN_INVOKE_BEGIN;
   /* subscription was set as our private context */
-  sr_unsubscribe(session, private_ctx);
+  sr_unsubscribe(private_ctx);
   HICN_LOG_DBG_MSG("hicn light unload plugin ok.");
   hicn_disconnect_light();
   HICN_LOG_DBG_MSG("hicn light disconnect ok.");
-  HICN_INVOKE_END;
 }
 
 static void sigint_handler(int signum) { exit_application = 1; }
@@ -75,14 +70,14 @@ int main(int argc, char **argv) {
   }
 
   /* connect to sysrepo */
-  rc = sr_connect("cpe_application", SR_CONN_DEFAULT, &connection);
+  rc = sr_connect(SR_CONN_DEFAULT, &connection);
   if (SR_ERR_OK != rc) {
     fprintf(stderr, "Error by sr_connect: %s\n", sr_strerror(rc));
     goto cleanup;
   }
 
   /* start session */
-  rc = sr_session_start(connection, SR_DS_STARTUP, SR_SESS_DEFAULT, &session);
+  rc = sr_session_start(connection, SR_DS_STARTUP, &session);
   if (SR_ERR_OK != rc) {
     fprintf(stderr, "Error by sr_session_start: %s\n", sr_strerror(rc));
     goto cleanup;
@@ -107,7 +102,7 @@ int main(int argc, char **argv) {
 
 cleanup:
   if (NULL != subscription) {
-    sr_unsubscribe(session, subscription);
+    sr_unsubscribe(subscription);
   }
   if (NULL != session) {
     sr_session_stop(session);
diff --git a/ctrl/sysrepo-plugins/hicn-light/plugin/hicn_light_comm.h b/ctrl/sysrepo-plugins/hicn-light/plugin/hicn_light_comm.h
index 100023564..ca67cf0b7 100644
--- a/ctrl/sysrepo-plugins/hicn-light/plugin/hicn_light_comm.h
+++ b/ctrl/sysrepo-plugins/hicn-light/plugin/hicn_light_comm.h
@@ -16,7 +16,6 @@
 #ifndef __HICN_LIGHT_COMMM_H__
 #define __HICN_LIGHT_COMMM_H__
 #include <sysrepo.h>
-#include <sysrepo/plugins.h>
 #include <sysrepo/values.h>
 
 
@@ -30,27 +29,6 @@
 #endif
 #endif
 
-#ifndef _NOLOG
-#define HICN_LOG_DBG SRP_LOG_DBG
-#define HICN_LOG_ERR SRP_LOG_ERR
-#define HICN_LOG_DBG_MSG SRP_LOG_DBG_MSG
-#define HICN_LOG_ERR_MSG SRP_LOG_ERR_MSG
-#else
-#define HICN_LOG_DBG      // printf
-#define HICN_LOG_DBG      // SRP_LOG_DBG
-#define HICN_LOG_ERR      // SRP_LOG_ERR
-#define HICN_LOG_DBG_MSG  // SRP_LOG_DBG_MSG
-#define HICN_LOG_ERR_MSG  // SRP_LOG_ERR_MSG
-#endif
-
-//Here it is the definition
-
-#define HICN_INVOKE_BEGIN HICN_LOG_DBG("inovke %s bein.", HICN_THIS_FUNC);
-#define HICN_INVOKE_END \
-  HICN_LOG_DBG("inovke %s end,with return OK.", HICN_THIS_FUNC);
-#define HICN_INVOKE_ENDX(...) \
-  HICN_LOG_DBG("inovke %s end,with %s.", HICN_THIS_FUNC, ##__VA_ARGS__)
-
 #define ARG_CHECK(retval, arg)                        \
   do {                                                \
     if (NULL == (arg)) {                              \
diff --git a/ctrl/sysrepo-plugins/hicn-light/plugin/model/hicn_model.c b/ctrl/sysrepo-plugins/hicn-light/plugin/model/hicn_model.c
index 6f8ece08c..47e07d196 100644
--- a/ctrl/sysrepo-plugins/hicn-light/plugin/model/hicn_model.c
+++ b/ctrl/sysrepo-plugins/hicn-light/plugin/model/hicn_model.c
@@ -28,11 +28,10 @@
 /**
  * @brief API to add hicn face ip in hicn-light.
  */
-static int hicn_face_ip_add_cb(const char *xpath, const sr_val_t *input,
-                               const size_t input_cnt, sr_val_t **output,
-                               size_t *output_cnt, void *private_ctx) {
+static int hicn_face_ip_add_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
-  SRP_LOG_DBG_MSG("hicn face ip add received successfully");
+  SRP_LOG_DBGMSG("hicn face ip add received successfully");
   hc_face_t face;
   if(strcmp(input[0].data.string_val,"-1")){
 
@@ -51,7 +50,7 @@ static int hicn_face_ip_add_cb(const char *xpath, const sr_val_t *input,
     face.face.local_addr.v6.as_in6addr = *dst;
 
   }else{
-      SRP_LOG_DBG_MSG("Invalid local IP address");
+      SRP_LOG_DBGMSG("Invalid local IP address");
       return SR_ERR_OPERATION_FAILED;
   }
 
@@ -72,12 +71,11 @@ static int hicn_face_ip_add_cb(const char *xpath, const sr_val_t *input,
     face.face.remote_addr.v6.as_in6addr = *dst;
 
   }else{
-      SRP_LOG_DBG_MSG("Invalid local IP address");
+      SRP_LOG_DBGMSG("Invalid local IP address");
       return SR_ERR_OPERATION_FAILED;
   }
 
 
-  // strncpy(face.face.hicn.netdevice.name,"ens39"); // Can we work only with Idx number ?
   face.face.netdevice.index = input[4].data.uint32_val;  // This is the idx number of interface
 
 
@@ -88,34 +86,29 @@ static int hicn_face_ip_add_cb(const char *xpath, const sr_val_t *input,
   int rc;
   rc = hc_face_create(hsocket, &face);
   if (rc > 0) {
-       SRP_LOG_DBG_MSG("Face added successfully");
+       SRP_LOG_DBGMSG("Face added successfully");
        return SR_ERR_OK;
   }
 
-  SRP_LOG_DBG_MSG("Operation Failed");
+  SRP_LOG_DBGMSG("Operation Failed");
   return SR_ERR_OPERATION_FAILED;
 }
 
 /**
  * @brief API to del hicn face ip in vpp.
  */
-static int hicn_face_ip_del_cb(const char *xpath, const sr_val_t *input,
-                               const size_t input_cnt, sr_val_t **output,
-                               size_t *output_cnt, void *private_ctx) {
+static int hicn_face_ip_del_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
-  SRP_LOG_DBG_MSG("hicn face ip del received successfully");
+  SRP_LOG_DBGMSG("hicn face ip del received successfully");
   face_t * face=NULL;
 
-  // msg->payload.faceid = input[0].data.uint16_val;
-  //lookup(face);
+
   face_free(face);
 
-  // if(!resp->payload.retval){
-  //     SRP_LOG_DBG_MSG("Successfully Done");
-  //     return SR_ERR_OK;
-  // }
 
-  SRP_LOG_DBG_MSG("Operation Failed");
+
+  SRP_LOG_DBGMSG("Operation Failed");
   return SR_ERR_OPERATION_FAILED;
 
 }
@@ -124,9 +117,8 @@ static int hicn_face_ip_del_cb(const char *xpath, const sr_val_t *input,
 /**
  * @brief API to del hicn face ip in vpp.
  */
-static int hicn_route_add_cb(const char *xpath, const sr_val_t *input,
-                               const size_t input_cnt, sr_val_t **output,
-                               size_t *output_cnt, void *private_ctx) {
+static int hicn_route_add_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
 /*
 
@@ -169,34 +161,34 @@ int hicn_subscribe_events(sr_session_ctx_t *session,
 
   int rc;
     rc = sr_rpc_subscribe(session, "/hicn:face-ip-add", hicn_face_ip_add_cb,
-    session, SR_SUBSCR_CTX_REUSE, subscription);
+    session, 100,SR_SUBSCR_CTX_REUSE, subscription);
      if (rc != SR_ERR_OK) {
-      SRP_LOG_DBG_MSG("Problem in subscription stat-get\n");
+      SRP_LOG_DBGMSG("Problem in subscription stat-get\n");
       goto error;
     }
 
 
     rc = sr_rpc_subscribe(session, "/hicn:face-ip-del", hicn_face_ip_del_cb,
-    session, SR_SUBSCR_CTX_REUSE, subscription);
+    session, 100,SR_SUBSCR_CTX_REUSE, subscription);
     if (rc != SR_ERR_OK) {
-      SRP_LOG_DBG_MSG("Problem in subscription face-ip-del\n");
+      SRP_LOG_DBGMSG("Problem in subscription face-ip-del\n");
       goto error;
     }
 
 
     rc = sr_rpc_subscribe(session, "/hicn:route-nhops-add",
-    hicn_route_add_cb, session, SR_SUBSCR_CTX_REUSE, subscription);
+    hicn_route_add_cb, session, 100,SR_SUBSCR_CTX_REUSE, subscription);
      if (rc!= SR_ERR_OK) {
-      SRP_LOG_DBG_MSG("Problem in subscription route-nhops-add\n");
+      SRP_LOG_DBGMSG("Problem in subscription route-nhops-add\n");
       goto error;
     }
 
 
-  SRP_LOG_INF_MSG("hicn light initialized successfully.");
+  SRP_LOG_DBGMSG("hicn light initialized successfully.");
   return SR_ERR_OK;
 
 error:
-  SRP_LOG_ERR_MSG("Error by initialization of the hicn plugin.");
+  SRP_LOG_ERRMSG("Error by initialization of the hicn plugin.");
   sr_plugin_cleanup_cb(session, hsocket);
   return rc;
 
diff --git a/ctrl/sysrepo-plugins/hicn-plugin/CMakeLists.txt b/ctrl/sysrepo-plugins/hicn-plugin/CMakeLists.txt
index 37590ee4c..34dbdb817 100644
--- a/ctrl/sysrepo-plugins/hicn-plugin/CMakeLists.txt
+++ b/ctrl/sysrepo-plugins/hicn-plugin/CMakeLists.txt
@@ -12,40 +12,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# set compiler options
-set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -std=gnu99")
-set(CMAKE_C_FLAGS_RELEASE "-DNDEBUG -O2")
-set(CMAKE_C_FLAGS_DEBUG   "-g -O0")
-
 cmake_minimum_required(VERSION 2.8)
-project(sysrepo-vpp-plugins)
 
 # Cmake find modules
-list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/../cmake/Modules"
-"${CMAKE_CURRENT_LIST_DIR}/../../../cmake/Modules"
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/../../../cmake/Modules"
+     "${CMAKE_CURRENT_LIST_DIR}/../cmake/Modules"
 )
 
-find_package(VPP)
-find_package(PkgConfig)
-find_package(HicnPlugin)
-find_package(Sysrepo)
-
-#pkg_check_modules(SYSREPO libsysrepo)
-
-# get sysrepo plugins directory from pkgconfig
-if (NOT SR_PLUGINS_DIR)
-    if (PKG_CONFIG_FOUND)
-        execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} "--variable=SR_PLUGINS_DIR" "libsysrepo" OUTPUT_VARIABLE SR_PLUGINS_DIR)
-        string(STRIP ${SR_PLUGINS_DIR} SR_PLUGINS_DIR)
-    endif()
-endif()
-if (NOT SR_PLUGINS_DIR)
-    message(FATAL_ERROR "Cannot get sysrepo plugins directory due to missing pkg-config, set SR_PLUGINS_DIR manually.")
-endif()
-
 # plugins sources
-set(PLUGINS_SOURCES
+set(SOURCE_FILES
     plugin/ietf/ietf_interface.c
     plugin/model/hicn_model.c
     plugin/model/tlock.c
@@ -53,15 +28,21 @@ set(PLUGINS_SOURCES
     plugin/hicn_plugin.c
 )
 
-# build the source code into shared library
-add_library(hicn SHARED ${PLUGINS_SOURCES})
-target_include_directories(hicn PUBLIC ${VPP_INCLUDE_DIRS} ${HICNPLUGIN_INCLUDE_DIRS})
-target_link_libraries(hicn ${SYSREPO_LIBRARIES} ${VPP_LIBRARIES})
-
-#set_target_properties(hicn
-#        PROPERTIES
-#        LINKER_LANGUAGE C
-#        INSTALL_RPATH ${VPP_HOME}/lib)
-
-# install the plugin into plugins dir
-install(TARGETS hicn DESTINATION ${SR_PLUGINS_DIR} COMPONENT hicn_sysrepo_plugin)
+list(APPEND SYSREPO_PLUGIN_INCLUDE_DIRS
+    ${VPP_INCLUDE_DIRS}
+    ${HICNPLUGIN_INCLUDE_DIRS})
+
+list(APPEND LIBRARIES
+    ${SYSREPO_LIBRARIES}
+    ${VPP_LIBRARIES})
+
+build_library(sysrepohicn
+    SHARED
+    SOURCES ${SOURCE_FILES}
+    LINK_LIBRARIES ${LIBRARIES}
+    DEPENDS ${DEPENDENCIES}
+    COMPONENT hicn_sysrepo_plugin
+    INCLUDE_DIRS ${SYSREPO_PLUGIN_INCLUDE_DIRS}
+    INSTALL_FULL_PATH_DIR ${SRPD_PLUGINS_PATH}
+    DEFINITIONS ${COMPILER_DEFINITIONS}
+)
diff --git a/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_plugin.c b/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_plugin.c
index 262e98553..5072c3d6c 100644
--- a/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_plugin.c
+++ b/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_plugin.c
@@ -27,12 +27,11 @@ sr_subscription_ctx_t *subscription = NULL;
 volatile int exit_application = 0;
 
 int sr_plugin_init_cb(sr_session_ctx_t *session, void **private_ctx) {
-  HICN_INVOKE_BEGIN;
+
   sr_subscription_ctx_t *subscription = NULL;
   int rc = SR_ERR_OK;
   rc = hicn_connect_vpp();
   if (SR_ERR_OK != rc) {
-    HICN_LOG_ERR("vpp connect error , with return %d.", rc);
     return SR_ERR_INTERNAL;
   }
 
@@ -40,24 +39,20 @@ int sr_plugin_init_cb(sr_session_ctx_t *session, void **private_ctx) {
   hicn_subscribe_events(session, &subscription);
 
   // IETF subscribe
-  ietf_subscribe_events(session, &subscription);
+ // ietf_subscribe_events(session, &subscription);
 
 
   /* set subscription as our private context */
   *private_ctx = subscription;
-  HICN_INVOKE_END;
+
   return SR_ERR_OK;
 }
 
 void sr_plugin_cleanup_cb(sr_session_ctx_t *session, void *private_ctx) {
-  HICN_INVOKE_BEGIN;
 
   /* subscription was set as our private context */
-  sr_unsubscribe(session, private_ctx);
-  HICN_LOG_DBG_MSG("hicn pligin unload plugin ok.");
+  sr_unsubscribe(private_ctx);
   hicn_disconnect_vpp();
-  HICN_LOG_DBG_MSG("hicn plugin disconnect vpp ok.");
-  HICN_INVOKE_END;
 }
 
 static void sigint_handler(int signum) { exit_application = 1; }
@@ -78,14 +73,14 @@ int main(int argc, char **argv) {
   }
 
   /* connect to sysrepo */
-  rc = sr_connect("cpe_application", SR_CONN_DEFAULT, &connection);
+  rc = sr_connect(SR_CONN_DEFAULT, &connection);
   if (SR_ERR_OK != rc) {
     fprintf(stderr, "Error by sr_connect: %s\n", sr_strerror(rc));
     goto cleanup;
   }
 
   /* start session */
-  rc = sr_session_start(connection, SR_DS_STARTUP, SR_SESS_DEFAULT, &session);
+  rc = sr_session_start(connection, SR_DS_STARTUP, &session);
   if (SR_ERR_OK != rc) {
     fprintf(stderr, "Error by sr_session_start: %s\n", sr_strerror(rc));
     goto cleanup;
@@ -110,7 +105,7 @@ int main(int argc, char **argv) {
 
 cleanup:
   if (NULL != subscription) {
-    sr_unsubscribe(session, subscription);
+    sr_unsubscribe(subscription);
   }
   if (NULL != session) {
     sr_session_stop(session);
diff --git a/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_vpp_comm.c b/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_vpp_comm.c
index f044c5b1b..e028d7840 100644
--- a/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_vpp_comm.c
+++ b/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_vpp_comm.c
@@ -28,22 +28,21 @@ vapi_ctx_t g_vapi_ctx_instance=NULL;
 
 
 int hicn_connect_vpp() {
-  HICN_INVOKE_BEGIN;
+
   if (g_vapi_ctx_instance == NULL) {
     vapi_error_e rv = vapi_ctx_alloc(&g_vapi_ctx_instance);
     rv = vapi_connect(g_vapi_ctx_instance, APP_NAME, NULL,
                       MAX_OUTSTANDING_REQUESTS, RESPONSE_QUEUE_SIZE,
                       VAPI_MODE_BLOCKING, true);
     if (rv != VAPI_OK) {
-      HICN_LOG_ERR("*connect %s faild,with return %d", APP_NAME, rv);
+      SRP_LOG_DBGMSG("Error connection");
       vapi_ctx_free(g_vapi_ctx_instance);
       return -1;
     }
-    HICN_LOG_DBG("*connected %s ok", APP_NAME);
+    SRP_LOG_DBGMSG("*connected ok");
   } else {
-    HICN_LOG_DBG("connection %s keeping", APP_NAME);
+    SRP_LOG_DBGMSG("connection keeping");
   }
-  HICN_INVOKE_END;
   return 0;
 }
 
diff --git a/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_vpp_comm.h b/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_vpp_comm.h
index fd71dbaf2..720bd6835 100644
--- a/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_vpp_comm.h
+++ b/ctrl/sysrepo-plugins/hicn-plugin/plugin/hicn_vpp_comm.h
@@ -16,7 +16,6 @@
 #ifndef __HICN_VPP_COMMM_H__
 #define __HICN_VPP_COMMM_H__
 #include <sysrepo.h>
-#include <sysrepo/plugins.h>  //for HICN_LOG_DBG
 #include <sysrepo/values.h>
 #include <vapi/vapi.h>
 
@@ -28,20 +27,6 @@
 #endif
 #endif
 
-#ifndef _NOLOG
-#define HICN_LOG_DBG SRP_LOG_DBG
-#define HICN_LOG_ERR SRP_LOG_ERR
-#define HICN_LOG_DBG_MSG SRP_LOG_DBG_MSG
-#define HICN_LOG_ERR_MSG SRP_LOG_ERR_MSG
-#else
-#define HICN_LOG_DBG      // printf
-#define HICN_LOG_DBG      // SRP_LOG_DBG
-#define HICN_LOG_ERR      // SRP_LOG_ERR
-#define HICN_LOG_DBG_MSG  // SRP_LOG_DBG_MSG
-#define HICN_LOG_ERR_MSG  // SRP_LOG_ERR_MSG
-#endif
-
-
 // ctx vpp connect
 extern vapi_ctx_t g_vapi_ctx_instance;
 
@@ -50,16 +35,11 @@ extern vapi_ctx_t g_vapi_ctx_instance;
 #define VPP_INTFC_NAME_LEN 64
 #define VPP_MAC_ADDRESS_LEN 8
 #define VPP_IP6_ADDRESS_LEN 16
-#define HICN_INVOKE_BEGIN HICN_LOG_DBG("inovke %s bein.", HICN_THIS_FUNC);
-#define HICN_INVOKE_END \
-  HICN_LOG_DBG("inovke %s end,with return OK.", HICN_THIS_FUNC);
-#define HICN_INVOKE_ENDX(...) \
-  HICN_LOG_DBG("inovke %s end,with %s.", HICN_THIS_FUNC, ##__VA_ARGS__)
 
 #define ARG_CHECK(retval, arg)                        \
   do {                                                \
     if (NULL == (arg)) {                              \
-      HICN_LOG_ERR_MSG(#arg ":NULL pointer passed."); \
+      SRP_LOG_DBGMSG("NULL pointer passed.");         \
       return (retval);                                \
     }                                                 \
   } while (0)
@@ -70,59 +50,16 @@ extern vapi_ctx_t g_vapi_ctx_instance;
     ARG_CHECK(retval, arg1); \
     ARG_CHECK(retval, arg2)
 
-#define ARG_CHECK6(retval, arg1, arg2, arg3, arg4, arg5, arg6) \
+#define ARG_CHECK7(retval, arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
     ARG_CHECK(retval, arg1); \
     ARG_CHECK(retval, arg2); \
     ARG_CHECK(retval, arg3); \
     ARG_CHECK(retval, arg4); \
     ARG_CHECK(retval, arg5); \
-    ARG_CHECK(retval, arg6)
-
-
-/**
- * when use tihs must fist DEFINE_VAPI_MSG_IDS_VXLAN_API_JSON
- */
-#define HICN_VPP_VAPI_RECV                                                   \
-  do {                                                                       \
-    size_t size;                                                             \
-    int recv_vapimsgid = -1;                                                 \
-    vapi_recv(g_vapi_ctx_instance, (void *)&resp, &size, 0, 0);              \
-    recv_vapimsgid = vapi_lookup_vapi_msg_id_t(                              \
-        g_vapi_ctx_instance, ntohs(resp->header._vl_msg_id));                \
-    if (recv_vapimsgid <= vapi_msg_id_get_next_index_reply ||                \
-        recv_vapimsgid >= vapi_get_message_count()) {                        \
-      HICN_LOG_DBG("***recv error msgid[%d] not in [0-%d) ,try again!***\n", \
-                   recv_vapimsgid, vapi_get_message_count());                \
-    } else {                                                                 \
-      HICN_LOG_DBG("recv msgid [%d]\n", recv_vapimsgid);                     \
-      break;                                                                 \
-    }                                                                        \
-  } while (1);
-
-#define HICN_REGISTER_RPC_EVT_HANDLER(rpc_evt_handle)          \
-  do {                                                         \
-    sr_error_t rc = rpc_evt_handle(session, &subscription);    \
-    if (SR_ERR_OK != rc) {                                     \
-      HICN_LOG_ERR("load plugin failed: %s", sr_strerror(rc)); \
-      sr_unsubscribe(session, subscription);                   \
-      HICN_INVOKE_ENDX(sr_strerror(rc));                       \
-      return rc;                                               \
-    }                                                          \
-  } while (0);
-
-
-// define the error list
-typedef enum {
-    HICN_OK = 0,       /* Success */
-    HICN_EINVAL,       /* Invalid value encountered */
-    HICN_EAGAIN,       /* Operation would block */
-    HICN_ENOTSUP,      /* Operation not supported */
-    HICN_ENOMEM,       /* Out of memory */
-    HICN_NOT_FOUND,    /* Required element can not be found */
-} hicn_error_e;
-
+    ARG_CHECK(retval, arg6); \
+    ARG_CHECK(retval, arg7)
 
 int hicn_connect_vpp();
 int hicn_disconnect_vpp();
 
-#endif  //__HICN_VPP_COMMM_H__
\ No newline at end of file
+#endif  //__HICN_VPP_COMMM_H__
diff --git a/ctrl/sysrepo-plugins/hicn-plugin/plugin/ietf/ietf_interface.c b/ctrl/sysrepo-plugins/hicn-plugin/plugin/ietf/ietf_interface.c
index 0498527cb..b3d31ff80 100644
--- a/ctrl/sysrepo-plugins/hicn-plugin/plugin/ietf/ietf_interface.c
+++ b/ctrl/sysrepo-plugins/hicn-plugin/plugin/ietf/ietf_interface.c
@@ -19,7 +19,6 @@
 #include <arpa/inet.h>
 
 #include <sysrepo.h>
-#include <sysrepo/plugins.h>
 #include <sysrepo/values.h>
 #include <sysrepo/xpath.h>
 #include <vnet/interface.h>
@@ -117,30 +116,57 @@ interface_enable_disable(const char *if_name, bool enable)
     uint32_t if_index = ~0;
     int rc = 0;
 
-    SRP_LOG_DBG("%s interface '%s'", enable ? "Enabling" : "Disabling", if_name);
 
     /* get interface index */
     rc = ietf_interface_name2index(if_name, &if_index);
     if (0 != rc) {
-        SRP_LOG_ERR("Invalid interface name: %s", if_name);
+        SRP_LOG_ERRMSG("Invalid interface name");
         return SR_ERR_INVAL_ARG;
     }
 
     /* enable/disable interface */
     rc = ietf_setInterfaceFlags(if_index, (uint8_t)enable);
     if (0 != rc) {
-        SRP_LOG_ERR("Error by processing of the sw_interface_set_flags request, rc=%d", rc);
+       SRP_LOG_ERRMSG("Error by processing of the sw_interface_set_flags request");
         return SR_ERR_OPERATION_FAILED;
     } else {
         return SR_ERR_OK;
     }
 }
 
+
+vapi_error_e call_sw_interface_add_del_address(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_sw_interface_add_del_address_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+vapi_error_e call_sw_interface_set_flags(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_sw_interface_set_flags_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+
+
 /**
  * @brief Callback to be called by any config change of "/ietf-interfaces:interfaces/interface/enabled" leaf.
  */
 static int
-ietf_interface_enable_disable_cb(sr_session_ctx_t *session, const char *xpath, sr_notif_event_t event, void *private_ctx)
+ietf_interface_enable_disable_cb(sr_session_ctx_t *session, const char *module_name, const char *xpath, sr_event_t event,
+        uint32_t request_id, void *private_data)
 {
     char *if_name = NULL;
     sr_change_iter_t *iter = NULL;
@@ -151,15 +177,14 @@ ietf_interface_enable_disable_cb(sr_session_ctx_t *session, const char *xpath, s
     int rc = SR_ERR_OK, op_rc = SR_ERR_OK;
 
     /* no-op for apply, we only care about SR_EV_ENABLED, SR_EV_VERIFY, SR_EV_ABORT */
-    if (SR_EV_APPLY == event) {
+    if (SR_EV_DONE == event) {
         return SR_ERR_OK;
     }
-    SRP_LOG_DBG("'%s' modified, event=%d", xpath, event);
 
     /* get changes iterator */
     rc = sr_get_changes_iter(session, xpath, &iter);
     if (SR_ERR_OK != rc) {
-        SRP_LOG_ERR("Unable to retrieve change iterator: %s", sr_strerror(rc));
+        SRP_LOG_ERRMSG("Unable to retrieve change iterator");
         return rc;
     }
 
@@ -167,7 +192,7 @@ ietf_interface_enable_disable_cb(sr_session_ctx_t *session, const char *xpath, s
     while ((SR_ERR_OK == op_rc || event == SR_EV_ABORT) &&
             (SR_ERR_OK == (rc = sr_get_change_next(session, iter, &op, &old_val, &new_val)))) {
 
-        SRP_LOG_DBG("A change detected in '%s', op=%d", new_val ? new_val->xpath : old_val->xpath, op);
+        SRP_LOG_DBGMSG("A change detected");
         if_name = sr_xpath_key_value(new_val ? new_val->xpath : old_val->xpath, "interface", "name", &xpath_ctx);
         switch (op) {
             case SR_OP_CREATED:
@@ -201,19 +226,17 @@ interface_ipv46_config_add_remove(const char *if_name, uint8_t *addr, uint8_t pr
     uint32_t if_index = ~0;
     int rc = 0;
 
-    SRP_LOG_DBG("%s IP config on interface '%s'.", add ? "Adding" : "Removing", if_name);
-
     /* get interface index */
     rc = ietf_interface_name2index(if_name, &if_index);
     if (0 != rc) {
-        SRP_LOG_ERR("Invalid interface name: %s", if_name);
+       SRP_LOG_ERRMSG("Invalid interface name");
         return SR_ERR_INVAL_ARG;
     }
 
     /* add del addr */
     rc = ietf_interface_add_del_addr(if_index, (uint8_t)add, (uint8_t)is_ipv6, 0, prefix, addr);
     if (0 != rc) {
-        SRP_LOG_ERR("Error by processing of the sw_interface_set_flags request, rc=%d", rc);
+        SRP_LOG_ERRMSG("Error by processing of the sw_interface_set_flags request");
         return SR_ERR_OPERATION_FAILED;
     } else {
         return SR_ERR_OK;
@@ -333,17 +356,12 @@ i32 ietf_interface_add_del_addr( u32 sw_if_index, u8 is_add, u8 is_ipv6, u8 del_
   msg->payload.del_all = del_all;
   msg->payload.address_length = address_length;
   memcpy(msg->payload.address, address, VPP_IP6_ADDRESS_LEN);
-  vapi_msg_sw_interface_add_del_address_hton (msg);
-
-  vapi_send (g_vapi_ctx_instance, msg);
-
-  vapi_msg_sw_interface_add_del_address_reply *resp;
 
-  HICN_VPP_VAPI_RECV;
+  if(vapi_sw_interface_add_del_address(g_vapi_ctx_instance,msg,call_sw_interface_add_del_address,NULL)!=VAPI_OK){
+    SRP_LOG_DBGMSG("Operation failed");
+    return SR_ERR_OPERATION_FAILED;
+  }
 
-  vapi_msg_sw_interface_add_del_address_reply_hton(resp);
-  ret = resp->payload.retval;
-  vapi_msg_free (g_vapi_ctx_instance, resp);
   return ret;
 }
 
@@ -353,17 +371,13 @@ i32 ietf_setInterfaceFlags(u32 sw_if_index, u8 admin_up_down)
   vapi_msg_sw_interface_set_flags *msg = vapi_alloc_sw_interface_set_flags(g_vapi_ctx_instance);
   msg->payload.sw_if_index = sw_if_index;
   msg->payload.admin_up_down = admin_up_down;
-  vapi_msg_sw_interface_set_flags_hton (msg);
-
-  vapi_send (g_vapi_ctx_instance, msg);
 
-  vapi_msg_sw_interface_set_flags_reply *resp;
+ if(vapi_sw_interface_set_flags(g_vapi_ctx_instance,msg,call_sw_interface_set_flags,NULL)!=VAPI_OK){
+    SRP_LOG_DBGMSG("Operation failed");
+    return SR_ERR_OPERATION_FAILED;
+  }
 
-  HICN_VPP_VAPI_RECV;
 
-  vapi_msg_sw_interface_set_flags_reply_ntoh(resp);
-  ret = resp->payload.retval;
-  vapi_msg_free (g_vapi_ctx_instance, resp);
   return ret;
 }
 
@@ -381,7 +395,7 @@ interface_ipv46_config_modify(sr_session_ctx_t *session, const char *if_name,
     uint8_t prefix = 0;
     int rc = SR_ERR_OK;
 
-    SRP_LOG_DBG("Updating IP config on interface '%s'.", if_name);
+    SRP_LOG_DBGMSG("Updating IP config on interface");
 
     /* get old config to be deleted */
     if (SR_UINT8_T == old_val->type) {
@@ -398,7 +412,7 @@ interface_ipv46_config_modify(sr_session_ctx_t *session, const char *if_name,
     /* delete old IP config */
     rc = interface_ipv46_config_add_remove(if_name, addr, prefix, is_ipv6, false /* remove */);
     if (SR_ERR_OK != rc) {
-        SRP_LOG_ERR("Unable to remove old IP address config, rc=%d", rc);
+        SRP_LOG_ERRMSG("Unable to remove old IP address config");
         return rc;
     }
 
@@ -412,7 +426,7 @@ interface_ipv46_config_modify(sr_session_ctx_t *session, const char *if_name,
     /* set new IP config */
     rc = interface_ipv46_config_add_remove(if_name, addr, prefix, is_ipv6, true /* add */);
     if (SR_ERR_OK != rc) {
-        SRP_LOG_ERR("Unable to remove old IP address config, rc=%d", rc);
+        SRP_LOG_ERRMSG("Unable to remove old IP address config");
         return rc;
     }
 
@@ -424,7 +438,8 @@ interface_ipv46_config_modify(sr_session_ctx_t *session, const char *if_name,
  * or "/ietf-interfaces:interfaces/interface/ietf-ip:ipv6/address".
  */
 static int
-ietf_interface_ipv46_address_change_cb(sr_session_ctx_t *session, const char *xpath, sr_notif_event_t event, void *private_ctx)
+ietf_interface_ipv46_address_change_cb(sr_session_ctx_t *session, const char *module_name, const char *xpath, sr_event_t event,
+        uint32_t request_id, void *private_data)
 {
     sr_change_iter_t *iter = NULL;
     sr_change_oper_t op = SR_OP_CREATED;
@@ -438,10 +453,9 @@ ietf_interface_ipv46_address_change_cb(sr_session_ctx_t *session, const char *xp
     int rc = SR_ERR_OK, op_rc = SR_ERR_OK;
 
     /* no-op for apply, we only care about SR_EV_ENABLED, SR_EV_VERIFY, SR_EV_ABORT */
-    if (SR_EV_APPLY == event) {
+    if (SR_EV_DONE == event) {
         return SR_ERR_OK;
     }
-    SRP_LOG_DBG("'%s' modified, event=%d", xpath, event);
 
     /* check whether we are handling ipv4 or ipv6 config */
     node_name = sr_xpath_node_idx((char*)xpath, 2, &xpath_ctx);
@@ -453,7 +467,7 @@ ietf_interface_ipv46_address_change_cb(sr_session_ctx_t *session, const char *xp
     /* get changes iterator */
     rc = sr_get_changes_iter(session, xpath, &iter);
     if (SR_ERR_OK != rc) {
-        SRP_LOG_ERR("Unable to retrieve change iterator: %s", sr_strerror(rc));
+       // SRP_LOG_ERR("Unable to retrieve change iterator: %s", sr_strerror(rc));
         return rc;
     }
 
@@ -461,7 +475,6 @@ ietf_interface_ipv46_address_change_cb(sr_session_ctx_t *session, const char *xp
     while ((SR_ERR_OK == op_rc || event == SR_EV_ABORT) &&
             (SR_ERR_OK == (rc = sr_get_change_next(session, iter, &op, &old_val, &new_val)))) {
 
-        SRP_LOG_DBG("A change detected in '%s', op=%d", new_val ? new_val->xpath : old_val->xpath, op);
         if_name = strdup(sr_xpath_key_value(new_val ? new_val->xpath : old_val->xpath, "interface", "name", &xpath_ctx));
         sr_xpath_recover(&xpath_ctx);
 
@@ -529,10 +542,9 @@ ietf_interface_ipv46_address_change_cb(sr_session_ctx_t *session, const char *xp
  * Does not provide any functionality, needed just to cover not supported config leaves.
  */
 static int
-ietf_interface_change_cb(sr_session_ctx_t *session, const char *xpath, sr_notif_event_t event, void *private_ctx)
+ietf_interface_change_cb(sr_session_ctx_t *session, const char *module_name, const char *xpath, sr_event_t event,
+        uint32_t request_id, void *private_data)
 {
-    SRP_LOG_DBG("'%s' modified, event=%d", xpath, event);
-
     return SR_ERR_OK;
 }
 
@@ -541,41 +553,41 @@ int ietf_subscribe_events(sr_session_ctx_t *session,
                           sr_subscription_ctx_t **subscription){
 
     int rc = SR_ERR_OK;
-    SRP_LOG_DBG_MSG("Subscriging ietf.");
+    SRP_LOG_DBGMSG("Subscriging ietf.");
 
     //
-    rc = sr_subtree_change_subscribe(session, "/ietf-interfaces:interfaces/interface", ietf_interface_change_cb,
+    rc = sr_module_change_subscribe(session, "ietf-interfaces","/ietf-interfaces:interfaces/interface", ietf_interface_change_cb,
                                              NULL,
-                                             0, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_EV_ENABLED, subscription);
+                                             0, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_ENABLED, subscription);
 
     if (rc != SR_ERR_OK) {
-        SRP_LOG_DBG_MSG("Problem in subscription /ietf-interfaces:interfaces/interface\n");
+        SRP_LOG_DBGMSG("Problem in subscription /ietf-interfaces:interfaces/interface\n");
         goto error;
     }
 
-    rc = sr_subtree_change_subscribe(session, "/ietf-interfaces:interfaces/interface/enabled", ietf_interface_enable_disable_cb,
+    rc = sr_module_change_subscribe(session, "ietf-interfaces","/ietf-interfaces:interfaces/interface/enabled", ietf_interface_enable_disable_cb,
                                              NULL,
-                                             100, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_EV_ENABLED, subscription);
+                                             100, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_ENABLED, subscription);
     if (rc != SR_ERR_OK) {
-        SRP_LOG_DBG_MSG("Problem in subscription /ietf-interfaces:interfaces/interface/enabled\n");
+        SRP_LOG_DBGMSG("Problem in subscription /ietf-interfaces:interfaces/interface/enabled\n");
         goto error;
     }
 
-    rc = sr_subtree_change_subscribe(session, "/ietf-interfaces:interfaces/interface/ietf-ip:ipv4/address", ietf_interface_ipv46_address_change_cb,
+    rc = sr_module_change_subscribe(session, "ietf-interfaces","/ietf-interfaces:interfaces/interface/ietf-ip:ipv4/address", ietf_interface_ipv46_address_change_cb,
                                              NULL,
-                                          99, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_EV_ENABLED, subscription);
+                                          99, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_ENABLED, subscription);
 
     if (rc != SR_ERR_OK) {
-        SRP_LOG_DBG_MSG("Problem in subscription /ietf-interfaces:interfaces/interface/ietf-ip:ipv4/address\n");
+        SRP_LOG_DBGMSG("Problem in subscription /ietf-interfaces:interfaces/interface/ietf-ip:ipv4/address\n");
         goto error;
     }
 
-    rc = sr_subtree_change_subscribe(session, "/ietf-interfaces:interfaces/interface/ietf-ip:ipv6/address", ietf_interface_ipv46_address_change_cb,
+    rc = sr_module_change_subscribe(session, "ietf-interfaces","/ietf-interfaces:interfaces/interface/ietf-ip:ipv6/address", ietf_interface_ipv46_address_change_cb,
                                              NULL,
-                                             98, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_EV_ENABLED, subscription);
+                                             98, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_ENABLED, subscription);
 
     if (rc != SR_ERR_OK) {
-        SRP_LOG_DBG_MSG("Problem in subscription /ietf-interfaces:interfaces/interface/ietf-ip:ipv6/address\n");
+        SRP_LOG_DBGMSG("Problem in subscription /ietf-interfaces:interfaces/interface/ietf-ip:ipv6/address\n");
         goto error;
     }
 
@@ -588,10 +600,10 @@ int ietf_subscribe_events(sr_session_ctx_t *session,
     }*/
 
 
-  SRP_LOG_INF_MSG("ietf initialized successfully.");
+  SRP_LOG_INFMSG("ietf initialized successfully.");
   return SR_ERR_OK;
 
   error:
-  SRP_LOG_ERR_MSG("Error by initialization of the ietf.");
+  SRP_LOG_ERRMSG("Error by initialization of the ietf.");
   return rc;
 }
diff --git a/ctrl/sysrepo-plugins/hicn-plugin/plugin/model/hicn_model.c b/ctrl/sysrepo-plugins/hicn-plugin/plugin/model/hicn_model.c
index bb8c5e828..305512af3 100644
--- a/ctrl/sysrepo-plugins/hicn-plugin/plugin/model/hicn_model.c
+++ b/ctrl/sysrepo-plugins/hicn-plugin/plugin/model/hicn_model.c
@@ -27,7 +27,6 @@
 #include <sched.h>
 /* Hicn headers */
 
-#include <vapi/hicn.api.vapi.h>
 #include <hicn/util/ip_address.h>
 #include "../hicn_plugin.h"
 #include "../hicn_vpp_comm.h"
@@ -46,9 +45,9 @@ volatile hicn_strategies_t * hicn_strategies =NULL;
 volatile hicn_route_t * hicn_route = NULL;
 volatile hicn_face_ip_params_t *  hicn_face_ip_params = NULL;
 volatile hicn_faces_t *  hicn_faces = NULL;
-//volatile hicn_face_stat_t * hicn_face_stat=NULL;
-struct hicn_faces_s * current = NULL;
-//volatile hicn_state_face_t * hicn_state_face=NULL;
+volatile hicn_routes_t *  hicn_routes = NULL;
+struct hicn_faces_s * fcurrent = NULL;
+struct hicn_routes_s * rcurrent = NULL;
 
 
 static int init_buffer(void){
@@ -67,13 +66,17 @@ static int init_buffer(void){
 
  hicn_faces = memalign(MEM_ALIGN, sizeof(hicn_faces_t) );
  hicn_faces->next=memalign(MEM_ALIGN, sizeof(struct hicn_faces_s));
- current=hicn_faces->next;
+ fcurrent=hicn_faces->next;
+
+
+ hicn_routes = memalign(MEM_ALIGN, sizeof(hicn_routes_t) );
+ hicn_routes->next=memalign(MEM_ALIGN, sizeof(struct hicn_routes_s));
+ rcurrent=hicn_routes->next;
 
-//  hicn_state_face = memalign(MEM_ALIGN, sizeof(hicn_state_face_t) );
-//  memset((hicn_state_face_t *) hicn_state_face, 0, sizeof(hicn_state_face_t));
 
  int retval=-1;
- ARG_CHECK6(retval, hicn_state, hicn_strategy, hicn_strategies, hicn_route, current, hicn_faces);
+ ARG_CHECK7(retval, hicn_state, hicn_strategy, hicn_strategies, hicn_route, fcurrent, hicn_faces, hicn_routes);
+ hicn_routes->nroute=0;
  hicn_faces->nface=0;
  retval=0;
 
@@ -83,145 +86,403 @@ static int init_buffer(void){
 
 static int init_face_pool(struct hicn_faces_s * head){
 
- ARG_CHECK(HICN_EINVAL, head);
  for(int i=0; i<MAX_FACE_POOL; i++){
      head->next=memalign(MEM_ALIGN, sizeof(struct hicn_faces_s));
      head=head->next;
-     SRP_LOG_DBG_MSG("Allocated\n");
  }
+ SRP_LOG_DBGMSG("Face memory pool allocated\n");
  head->next=NULL;
- return HICN_OK;
+ return 0;
+
+}
+
+
+static int init_route_pool(struct hicn_routes_s * head){
+
+ for(int i=0; i<MAX_ROUTE_POOL; i++){
+     head->next=memalign(MEM_ALIGN, sizeof(struct hicn_routes_s));
+     head=head->next;
+ }
+ SRP_LOG_DBGMSG("Route memory pool allocated\n");
+ head->next=NULL;
+ return 0;
+
+}
+
+/* VAPI CALLBACKS */
+
+vapi_error_e call_hicn_api_strategy_get(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_node_params_set_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
 
+
+vapi_error_e call_hicn_api_strategies_get(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_strategies_get_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
 }
 
-static inline void  state_cache(vapi_msg_hicn_api_node_stats_get_reply * resp){
-   hicn_state->pkts_processed = resp->payload.pkts_processed;
-   hicn_state->pkts_interest_count = resp->payload.pkts_interest_count;
-   hicn_state->pkts_data_count = resp->payload.pkts_data_count;
-   hicn_state->pkts_from_cache_count = resp->payload.pkts_from_cache_count;
-   hicn_state->pkts_no_pit_count = resp->payload.pkts_no_pit_count;
-   hicn_state->pit_expired_count = resp->payload.pit_expired_count;
-   hicn_state->cs_expired_count = resp->payload.cs_expired_count;
-   hicn_state->cs_lru_count = resp->payload.cs_lru_count;
-   hicn_state->pkts_drop_no_buf = resp->payload.pkts_drop_no_buf;
-   hicn_state->interests_aggregated = resp->payload.interests_aggregated;
-   hicn_state->interests_retx = resp->payload.interests_retx;
-   hicn_state->pit_entries_count = resp->payload.pit_entries_count;
-   hicn_state->cs_entries_count = resp->payload.cs_entries_count;
-   hicn_state->cs_entries_ntw_count = resp->payload.cs_entries_ntw_count;
-   SRP_LOG_DBG_MSG("state cached");
+vapi_error_e call_hicn_api_route_get_hton(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_strategies_get_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
 }
 
 
-static inline void  state_update(sr_val_t * vals ){
+vapi_error_e call_hicn_api_route_nhops_add(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_route_nhops_add_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+vapi_error_e call_hicn_api_route_del(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_route_del_reply *reply){
+
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+vapi_error_e call_hicn_api_face_ip_params_get(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_face_ip_params_get_reply *reply){
+if(!reply->retval){
+  if (callback_ctx!=NULL){
+      struct hicn_faces_s * tmp;
+      tmp = (struct hicn_faces_s *) callback_ctx;
+      tmp->face.intfc = reply->swif;
+  }
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+
+vapi_error_e call_hicn_api_punting_add(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_punting_add_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+
+vapi_error_e call_hicn_api_route_nhop_del(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_route_nhop_del_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+
+vapi_error_e call_hicn_api_punting_del(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_punting_del_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+
+vapi_error_e call_hicn_api_face_ip_del(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_face_ip_del_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+
+vapi_error_e call_hicn_api_face_ip_add(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_face_ip_add_reply *reply){
+if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+
+}
+
+vapi_error_e call_vapi_hicn_api_node_stats_get(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_node_stats_get_reply *reply){
+
+
+if(!reply->retval){
+   hicn_state->pkts_processed = reply->pkts_processed;
+   hicn_state->pkts_interest_count = reply->pkts_interest_count;
+   hicn_state->pkts_data_count = reply->pkts_data_count;
+   hicn_state->pkts_from_cache_count = reply->pkts_from_cache_count;
+   hicn_state->pkts_no_pit_count = reply->pkts_no_pit_count;
+   hicn_state->pit_expired_count = reply->pit_expired_count;
+   hicn_state->cs_expired_count = reply->cs_expired_count;
+   hicn_state->cs_lru_count = reply->cs_lru_count;
+   hicn_state->pkts_drop_no_buf = reply->pkts_drop_no_buf;
+   hicn_state->interests_aggregated = reply->interests_aggregated;
+   hicn_state->interests_retx = reply->interests_retx;
+   hicn_state->pit_entries_count = reply->pit_entries_count;
+   hicn_state->cs_entries_count = reply->cs_entries_count;
+   hicn_state->cs_entries_ntw_count = reply->cs_entries_ntw_count;
+   return VAPI_OK;
+ }else
+   return VAPI_EUSER;
+}
+
+vapi_error_e call_hicn_api_node_params_set(struct vapi_ctx_s *ctx,
+                           void *callback_ctx,
+                           vapi_error_e rv,
+                           bool is_last,
+                           vapi_payload_hicn_api_node_params_set_reply *reply){
+ if(!reply->retval){
+  SRP_LOG_DBGMSG("Successfully done");
+  return VAPI_OK;
+ }else
+  return VAPI_EUSER;
+}
+
+static inline void  state_update(sr_val_t * vals, struct lyd_node **parent, sr_session_ctx_t *session){
+ char buf[20]; 
+ //struct ly_ctx *ly_ctx = sr_get_context(sr_session_get_connection(session));
  sr_val_set_xpath(&vals[0], "/hicn:hicn-state/states/pkts_processed");
  vals[0].type = SR_UINT64_T;
  vals[0].data.uint64_val = hicn_state->pkts_processed;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->pkts_processed);
+ * parent = lyd_new_path(NULL, sr_get_context(sr_session_get_connection(session)), vals[0].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[1], "/hicn:hicn-state/states/pkts_interest_count");
  vals[1].type = SR_UINT64_T;
  vals[1].data.uint64_val = hicn_state->pkts_interest_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->pkts_interest_count );
+ lyd_new_path(*parent, NULL, vals[1].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[2], "/hicn:hicn-state/states/pkts_data_count");
  vals[2].type = SR_UINT64_T;
  vals[2].data.uint64_val = hicn_state->pkts_data_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->pkts_data_count );
+ lyd_new_path(*parent, NULL, vals[2].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[3], "/hicn:hicn-state/states/pkts_from_cache_count");
  vals[3].type = SR_UINT64_T;
  vals[3].data.uint64_val = hicn_state->pkts_from_cache_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64,  hicn_state->pkts_from_cache_count );
+ lyd_new_path(*parent, NULL, vals[3].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[4], "/hicn:hicn-state/states/pkts_no_pit_count");
  vals[4].type = SR_UINT64_T;
  vals[4].data.uint64_val = hicn_state->pkts_no_pit_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64,  hicn_state->pkts_no_pit_count );
+ lyd_new_path(*parent, NULL, vals[4].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[5], "/hicn:hicn-state/states/pit_expired_count");
  vals[5].type = SR_UINT64_T;
  vals[5].data.uint64_val = hicn_state->pit_expired_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->pit_expired_count );
+ lyd_new_path(*parent, NULL, vals[5].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[6], "/hicn:hicn-state/states/cs_expired_count");
  vals[6].type = SR_UINT64_T;
  vals[6].data.uint64_val = hicn_state->cs_expired_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->cs_expired_count );
+ lyd_new_path(*parent, NULL, vals[6].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[7], "/hicn:hicn-state/states/cs_lru_count");
  vals[7].type = SR_UINT64_T;
  vals[7].data.uint64_val = hicn_state->cs_lru_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->cs_lru_count );
+ lyd_new_path(*parent, NULL, vals[7].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[8], "/hicn:hicn-state/states/pkts_drop_no_buf");
  vals[8].type = SR_UINT64_T;
  vals[8].data.uint64_val = hicn_state->pkts_drop_no_buf;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->pkts_drop_no_buf );
+ lyd_new_path(*parent, NULL, vals[8].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[9], "/hicn:hicn-state/states/interests_aggregated");
  vals[9].type = SR_UINT64_T;
  vals[9].data.uint64_val = hicn_state->interests_aggregated;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->interests_aggregated );
+ lyd_new_path(*parent, NULL, vals[9].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[10], "/hicn:hicn-state/states/interests_retx");
  vals[10].type = SR_UINT64_T;
  vals[10].data.uint64_val = hicn_state->interests_retx;
+ memset(buf, 0x00, 20);
+  sprintf( buf, "%" PRIu64, hicn_state->interests_retx );
+ lyd_new_path(*parent, NULL, vals[10].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[11],
                   "/hicn:hicn-state/states/interests_hash_collision");
  vals[11].type = SR_UINT64_T;
  vals[11].data.uint64_val = hicn_state->interests_hash_collision;
+ memset(buf, 0x00, 20);
+  sprintf( buf, "%" PRIu64,  hicn_state->interests_hash_collision );
+ lyd_new_path(*parent, NULL, vals[11].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[12], "/hicn:hicn-state/states/pit_entries_count");
  vals[12].type = SR_UINT64_T;
  vals[12].data.uint64_val = hicn_state->pit_entries_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->pit_entries_count );
+ lyd_new_path(*parent, NULL, vals[12].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[13], "/hicn:hicn-state/states/cs_entries_count");
  vals[13].type = SR_UINT64_T;
  vals[13].data.uint64_val = hicn_state->cs_entries_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->cs_entries_count );
+ lyd_new_path(*parent, NULL, vals[13].xpath, buf, 0, 0);
 
  sr_val_set_xpath(&vals[14], "/hicn:hicn-state/states/cs_entries_ntw_count");
  vals[14].type = SR_UINT64_T;
  vals[14].data.uint64_val = hicn_state->cs_entries_ntw_count;
+ memset(buf, 0x00, 20);
+ sprintf( buf, "%" PRIu64, hicn_state->cs_entries_ntw_count );
+ lyd_new_path(*parent, NULL, vals[14].xpath, buf, 0, 0);
+
 }
 
-static inline void  strategies_update(sr_val_t * vals ){
- sr_val_set_xpath(&vals[0], "/hicn:hicn-state/strategies/n_strategies");
- vals[0].type = SR_UINT8_T;
- vals[0].data.uint8_val = hicn_strategies->n_strategies;
+static inline int  routes_update(sr_val_t * vals, uint32_t nleaves, struct lyd_node **parent, sr_session_ctx_t *session){
 
- sr_val_set_xpath(&vals[1], "/hicn:hicn-state/strategies/strategy_id");
- vals[1].type = SR_UINT32_T;
- vals[1].data.uint32_val = hicn_strategies->strategy_id[0];
-}
+ struct hicn_routes_s * temp = hicn_routes->next;
+ char buf[20];
+ int route =0;
+ for(int count=0; count<nleaves; count++){
+
+   sr_val_build_xpath(&vals[route], "%s[routeid='%d']/prefix", "/hicn:hicn-state/routes/route",
+   temp->route.route_id);
+   vals[route].type = SR_STRING_T;
+
+   memset(buf, 0x00, 20);
+   if (temp->route.prefix.address.af==ADDRESS_IP4){
+     struct sockaddr_in sa;
+     memcpy(&sa.sin_addr.s_addr,temp->route.prefix.address.un.ip4,INET_ADDRSTRLEN);
+     inet_ntop(AF_INET, &(sa.sin_addr), buf, INET_ADDRSTRLEN);
+     vals[route].data.string_val =  buf;
+   }else{
+     struct sockaddr_in6 sa;
+     memcpy(&sa.sin6_addr,temp->route.prefix.address.un.ip6,INET6_ADDRSTRLEN);
+     inet_ntop(AF_INET6, &(sa.sin6_addr), buf, INET6_ADDRSTRLEN);
+     vals[route].data.string_val =  buf;
+   }
+
+
+     lyd_new_path(*parent, NULL, vals[route].xpath, buf, 0, 0);
+
+
+   route++;
+
+   sr_val_build_xpath(&vals[route], "%s[routeid='%d']/strategy_id", "/hicn:hicn-state/routes/route",
+   temp->route.route_id);
+   vals[route].type = SR_UINT32_T;
+   vals[route].data.uint32_val = temp->route.strategy_id;
+   memset(buf, 0x00, 20);
+   sprintf( buf, "%d", temp->route.strategy_id);
+   lyd_new_path(*parent, NULL, vals[route].xpath, buf, 0, 0);
+  
+   route++;
 
-static inline void  route_update(sr_val_t * vals ){
- sr_val_set_xpath(&vals[0], "/hicn:hicn-state/routes/faceids");
- vals[0].type = SR_UINT16_T;
- vals[0].data.uint32_val = hicn_route->faceids[0];
+   temp=temp->next;
+
+}
 
- sr_val_set_xpath(&vals[1], "/hicn:hicn-state/routes/strategy_id");
- vals[1].type = SR_UINT32_T;
- vals[1].data.uint32_val = hicn_route->strategy_id;
+ SRP_LOG_DBGMSG("Routes state updated \n");
+ return SR_ERR_OK;
 }
 
-static inline int  faces_update(sr_val_t * vals, uint32_t nleaves){
+static inline int  faces_update(sr_val_t * vals, uint32_t nleaves, struct lyd_node **parent, sr_session_ctx_t *session){
 
  struct hicn_faces_s * temp = hicn_faces->next;
+ char buf[20];
  int face =0;
 
+
  for(int count=0; count<nleaves; count++){
 
 
   // This part must be removed once the faceid is provided by the dump msg
    vapi_msg_hicn_api_face_ip_params_get *msg;
-   vapi_msg_hicn_api_face_ip_params_get_reply *resp;
    msg = vapi_alloc_hicn_api_face_ip_params_get(g_vapi_ctx_instance);
+
+
    msg->payload.faceid = temp->face.faceid;
-   vapi_msg_hicn_api_face_ip_params_get_hton(msg);
-   params_send(msg,resp);
-   vapi_msg_hicn_api_face_ip_params_get_reply_ntoh(resp);
-   if(!resp->payload.retval){
-     SRP_LOG_DBG("faceid(%d)-->intfc(%d)", temp->face.faceid, resp->payload.swif);
-     temp->face.intfc= resp->payload.swif;
-   }
 
+   if(vapi_hicn_api_face_ip_params_get(g_vapi_ctx_instance,msg,call_hicn_api_face_ip_params_get, (void *)temp)!=VAPI_OK){
+     SRP_LOG_DBGMSG("Operation failed");
+     return SR_ERR_OPERATION_FAILED;
+   }
 
    sr_val_build_xpath(&vals[face], "%s[faceid='%d']/intfc", "/hicn:hicn-state/faces/face",
    temp->face.faceid);
    vals[face].type = SR_UINT32_T;
    vals[face].data.uint32_val = temp->face.intfc;
+   memset(buf, 0x00, 20);
+   sprintf( buf,"%u", temp->face.intfc);
+   lyd_new_path(*parent, NULL, vals[face].xpath, buf, 0, 0);
 
 
    face++;
@@ -231,484 +492,204 @@ static inline int  faces_update(sr_val_t * vals, uint32_t nleaves){
    temp->face.faceid);
    vals[face].type = SR_UINT64_T;
    vals[face].data.uint64_val = temp->face.irx_packets;
+   memset(buf, 0x00, 20);
+   sprintf( buf, "%" PRIu64, temp->face.irx_packets);
+   lyd_new_path(*parent, NULL, vals[face].xpath, buf, 0, 0);
 
    face++;
 
+
+
    sr_val_build_xpath(&vals[face], "%s[faceid='%d']/irx_bytes", "/hicn:hicn-state/faces/face",
    temp->face.faceid);
    vals[face].type = SR_UINT64_T;
    vals[face].data.uint64_val = temp->face.irx_bytes;
+   memset(buf, 0x00, 20);
+   sprintf( buf, "%" PRIu64, temp->face.irx_bytes);
+   lyd_new_path(*parent, NULL, vals[face].xpath, buf, 0, 0);
 
    face++;
 
+
+
    sr_val_build_xpath(&vals[face], "%s[faceid='%d']/itx_packets", "/hicn:hicn-state/faces/face",
    temp->face.faceid);
    vals[face].type = SR_UINT64_T;
    vals[face].data.uint64_val = temp->face.itx_packets;
+   memset(buf, 0x00, 20);
+   sprintf( buf, "%" PRIu64, temp->face.itx_packets);
+   lyd_new_path(*parent, NULL, vals[face].xpath, buf, 0, 0);
 
    face++;
 
+
+
    sr_val_build_xpath(&vals[face], "%s[faceid='%d']/itx_bytes", "/hicn:hicn-state/faces/face",
    temp->face.faceid);
    vals[face].type = SR_UINT64_T;
    vals[face].data.uint64_val = temp->face.itx_bytes;
+   memset(buf, 0x00, 20);
+   sprintf( buf, "%" PRIu64, temp->face.itx_bytes);
+   lyd_new_path(*parent, NULL, vals[face].xpath, buf, 0, 0);
+
 
    face++;
 
+
    sr_val_build_xpath(&vals[face], "%s[faceid='%d']/drx_packets", "/hicn:hicn-state/faces/face",
    temp->face.faceid);
    vals[face].type = SR_UINT64_T;
    vals[face].data.uint64_val = temp->face.drx_packets;
+   memset(buf, 0x00, 20);
+   sprintf( buf, "%" PRIu64, temp->face.drx_packets);
+   lyd_new_path(*parent, NULL, vals[face].xpath, buf, 0, 0);
+
 
    face++;
 
+
+
    sr_val_build_xpath(&vals[face], "%s[faceid='%d']/drx_bytes", "/hicn:hicn-state/faces/face",
    temp->face.faceid);
    vals[face].type = SR_UINT64_T;
-   vals[face].data.uint64_val = temp->face.drx_bytes;
+   vals[face].data.uint64_val =  temp->face.drx_bytes;
+   memset(buf, 0x00, 20);
+   sprintf( buf, "%" PRIu64, temp->face.drx_packets);
+   lyd_new_path(*parent, NULL, vals[face].xpath,  buf, 0, 0);
+
 
    face++;
 
+
    sr_val_build_xpath(&vals[face], "%s[faceid='%d']/dtx_packets", "/hicn:hicn-state/faces/face",
    temp->face.faceid);
    vals[face].type = SR_UINT64_T;
    vals[face].data.uint64_val = temp->face.dtx_packets;
+   memset(buf, 0x00, 20);
+   sprintf( buf, "%" PRIu64, temp->face.dtx_packets);
+   lyd_new_path(*parent, NULL, vals[face].xpath, buf, 0, 0);
 
    face++;
 
+
    sr_val_build_xpath(&vals[face], "%s[faceid='%d']/dtx_bytes", "/hicn:hicn-state/faces/face",
    temp->face.faceid);
    vals[face].type = SR_UINT64_T;
    vals[face].data.uint64_val = temp->face.dtx_bytes;
+   memset(buf, 0x00, 20);
+   sprintf( buf, "%" PRIu64, temp->face.dtx_bytes);
+   lyd_new_path(*parent, NULL, vals[face].xpath, buf, 0, 0);
 
-   face++;
 
-   SRP_LOG_DBG(" **********************face is: %d-%d-%d ****************\n",temp->face.dtx_bytes,temp->face.drx_bytes,temp->face.faceid);
-
-   printf("%" PRId64 "\n", temp->face.drx_bytes);
+   face++;
 
    temp=temp->next;
 
  }
- SRP_LOG_DBG_MSG("Faces state updated \n");
+ SRP_LOG_DBGMSG("Faces state updated \n");
  return SR_ERR_OK;
 }
 
-static int hicn_state_states_cb(const char *xpath, sr_val_t **values,
-                        size_t *values_cnt, uint64_t request_id,
-                        const char *original_xpath, void *private_ctx) {
+static int hicn_state_states_cb(sr_session_ctx_t *session, const char *module_name, const char *path, const char *request_xpath,
+        uint32_t request_id, struct lyd_node **parent, void *private_data) {
  sr_val_t *vals;
  int rc;
  enum locks_name state;
  state=lstate;
- SRP_LOG_DBG("Requesting state data for '%s'", xpath);
+ SRP_LOG_DBGMSG("Requesting state data");
 
- if (!sr_xpath_node_name_eq(xpath, "states")) {
-   *values = NULL;
-   *values_cnt = 0;
-   return SR_ERR_OK;
- }
 
  rc = sr_new_values(NSTATE_LEAVES, &vals);
  if (SR_ERR_OK != rc) {
    return rc;
  }
 
- SRP_LOG_DBG("Requesting state data for '%s'", xpath);
+
  tlock(state);
- state_update(vals);
+ state_update(vals,parent,session);
  tunlock(state);
 
- *values = vals;
- *values_cnt = NSTATE_LEAVES;
 
  return SR_ERR_OK;
 }
 
-static int hicn_state_strategies_cb(const char *xpath, sr_val_t **values,
-                        size_t *values_cnt, uint64_t request_id,
-                        const char *original_xpath, void *private_ctx) {
- sr_val_t *vals;
- int rc;
- enum locks_name strategies;
- strategies=lstrategies;
-
-
-
- if (! sr_xpath_node_name_eq(xpath, "strategies")) {
-   SRP_LOG_DBG_MSG("Requesting state is not for strategies");
-   *values = NULL;
-   *values_cnt = 0;
-   return SR_ERR_OK;
- }
-
-
- rc = sr_new_values(NSTRATEGIES_LEAVES, &vals);
- if (SR_ERR_OK != rc) {
-   return rc;
- }
-
- SRP_LOG_DBG("Requesting state data for '%s'", xpath);
- tlock(strategies);
- strategies_update(vals);
- tunlock(strategies);
-
- *values = vals;
- *values_cnt = NSTRATEGIES_LEAVES;
- return SR_ERR_OK;
-
- }
-
-
-static int hicn_state_route_cb(const char *xpath, sr_val_t **values,
-                        size_t *values_cnt, uint64_t request_id,
-                        const char *original_xpath, void *private_ctx) {
+static int hicn_state_route_cb(sr_session_ctx_t *session, const char *module_name, const char *path, const char *request_xpath,
+        uint32_t request_id, struct lyd_node **parent, void *private_data) {
  sr_val_t *vals;
  int rc;
  enum locks_name route;
  route=lroute;
+ uint32_t NROUTE_NODES = hicn_routes->nroute * ROUTES_CHILDREN;
 
 
- if (! sr_xpath_node_name_eq(xpath, "routes")) {
-   SRP_LOG_DBG_MSG("Requesting state is not for routes");
-   *values = NULL;
-   *values_cnt = 0;
-   return SR_ERR_OK;
- }
 
- rc = sr_new_values(NROUTE_LEAVES, &vals);
+ rc = sr_new_values(NROUTE_NODES, &vals);
  if (SR_ERR_OK != rc) {
    return rc;
  }
 
- SRP_LOG_DBG("Requesting state data for '%s'", xpath);
  tlock(route);
- route_update(vals);
+ routes_update(vals,NROUTE_NODES/ROUTES_CHILDREN, parent, session);
  tunlock(route);
 
- *values = vals;
- *values_cnt = NROUTE_LEAVES;
+
  return SR_ERR_OK;
 
  }
 
 
- static int hicn_state_faces_cb(const char *xpath, sr_val_t **values,
-                        size_t *values_cnt, uint64_t request_id,
-                        const char *original_xpath, void *private_ctx) {
+ static int hicn_state_faces_cb(sr_session_ctx_t *session, const char *module_name, const char *path, const char *request_xpath,
+        uint32_t request_id, struct lyd_node **parent, void *private_data) {
+
+
  sr_val_t *vals;
  int rc;
  enum locks_name faces;
  faces=lfaces;
  uint32_t NFACES_NODES = hicn_faces->nface * FACES_CHILDREN;
 
- if (! sr_xpath_node_name_eq(xpath, "faces")) {
-   SRP_LOG_DBG_MSG("Requesting state is not for faces");
-   *values = NULL;
-   *values_cnt = 0;
-   return SR_ERR_OK;
- }
-
- // We should only consider the number of leaves not the head of list(faceid)
  rc = sr_new_values(NFACES_NODES, &vals);
  if (SR_ERR_OK != rc) {
    return rc;
  }
 
- SRP_LOG_DBG("Requesting state data for '%s'", xpath);
-
  tlock(faces);
- SRP_LOG_DBG("**********NFACES-LEAVES '%d'  *********", NFACES_NODES);
- faces_update(vals, NFACES_NODES/FACES_CHILDREN);
+ faces_update(vals, NFACES_NODES/FACES_CHILDREN, parent, session);
  tunlock(faces);
- //hicn_faces->nface=0;
- *values = vals;
- *values_cnt = NFACES_NODES;
- return SR_ERR_OK;
 
- }
-
-/**
-* @brief Callback to be called by any config change of "/hicn:/" leaf.
-*/
-static int hicn_node_params_set_cb(sr_session_ctx_t *session, const char *xpath,
-                                  sr_notif_event_t event, void *private_ctx) {
- sr_change_iter_t *iter = NULL;
- sr_change_oper_t op = SR_OP_CREATED;
- sr_val_t *old_val = NULL;
- sr_val_t *new_val = NULL;
- sr_xpath_ctx_t xpath_ctx = {
-     0,
- };
- int rc = SR_ERR_OK, op_rc = SR_ERR_OK;
- // no-op for apply, we only care about SR_EV_ENABLED, SR_EV_VERIFY,
- // SR_EV_ABORT
- if (SR_EV_APPLY == event) {
-   return SR_ERR_OK;
- }
-
- // get changes iterator
- rc = sr_get_changes_iter(session, xpath, &iter);
- if (SR_ERR_OK != rc) {
-   SRP_LOG_ERR("Unable to retrieve change iterator: %s", sr_strerror(rc));
-   return rc;
- }
-
- vapi_msg_hicn_api_node_params_set *msg;
- vapi_msg_hicn_api_node_params_set_reply *resp = NULL;
- msg = vapi_alloc_hicn_api_node_params_set(g_vapi_ctx_instance);
- SRP_LOG_DBG("H:recv msgid [%d]\n", msg->header._vl_msg_id);                     \
-
- // iterate over all changes
- while ((SR_ERR_OK == op_rc || event == SR_EV_ABORT) &&
-        (SR_ERR_OK ==
-         (rc = sr_get_change_next(session, iter, &op, &old_val, &new_val)))) {
-   if (!strcmp(new_val->xpath, "/hicn:hicn-conf/params/enable_disable")) {
-     SRP_LOG_DBG("A change detected in '%s', op=%d",
-                 new_val ? new_val->xpath : old_val->xpath,
-                 new_val->data.bool_val);
-     msg->payload.enable_disable = new_val->data.bool_val;
-   } else if (!strcmp(new_val->xpath, "/hicn:hicn-conf/params/pit_max_size")) {
-     SRP_LOG_DBG("A change detected in '%s', op=%d",
-                 new_val ? new_val->xpath : old_val->xpath,
-                 new_val->data.int32_val);
-     msg->payload.pit_max_size = new_val->data.int32_val;
-   } else if (!strcmp(new_val->xpath, "/hicn:hicn-conf/params/cs_max_size")) {
-     SRP_LOG_DBG("A change detected in '%s', op=%d",
-                 new_val ? new_val->xpath : old_val->xpath,
-                 new_val->data.int32_val);
-     msg->payload.cs_max_size = new_val->data.int32_val;
-   } else if (!strcmp(new_val->xpath,
-                      "/hicn:hicn-conf/params/cs_reserved_app")) {
-     SRP_LOG_DBG("A change detected in '%s', op=%d",
-                 new_val ? new_val->xpath : old_val->xpath,
-                 new_val->data.int32_val);
-     msg->payload.cs_reserved_app = new_val->data.int32_val;
-   } else if (!strcmp(new_val->xpath,
-                      "/hicn:hicn-conf/params/pit_max_lifetime_sec")) {
-     SRP_LOG_DBG("A change detected in '%s', op=%d",
-                 new_val ? new_val->xpath : old_val->xpath,
-                 new_val->data.decimal64_val);
-     msg->payload.pit_max_lifetime_sec = new_val->data.decimal64_val;
-   }
-
-   switch (op) {
-     case SR_OP_CREATED:
-     case SR_OP_MODIFIED:
-       op_rc = SR_ERR_OK;  // OK
-       break;
-     case SR_OP_DELETED:
-       op_rc = SR_ERR_OPERATION_FAILED;  // ERROR
-       break;
-     default:
-       break;
-   }
-   sr_xpath_recover(&xpath_ctx);
-   if (SR_ERR_INVAL_ARG == op_rc) {
-     sr_set_error(session, "You are not allowed to change the schema.",
-                  new_val ? new_val->xpath : old_val->xpath);
-   }
-   sr_free_val(old_val);
-   sr_free_val(new_val);
- }
-
- vapi_msg_hicn_api_node_params_set_hton(msg);
-
- params_send(msg, resp);
-
- vapi_msg_hicn_api_node_params_set_reply_ntoh(resp);
-
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     sr_free_change_iter(iter);
-     return SR_ERR_OK;
- }
- SRP_LOG_DBG_MSG("Operation failed");
- return SR_ERR_OPERATION_FAILED;
-}
-
-/**
-* @brief API to get hicn param in vpp.
-*/
-static int hicn_node_params_get_cb(const char *xpath, const sr_val_t *input,
-                                  const size_t input_cnt, sr_val_t **output,
-                                  size_t *output_cnt, void *private_ctx) {
-
- SRP_LOG_DBG_MSG("hicn node parameter received successfully");
- vapi_msg_hicn_api_node_params_get *msg;
- vapi_msg_hicn_api_node_params_get_reply *resp;
-
- msg = vapi_alloc_hicn_api_node_params_get(g_vapi_ctx_instance);
-
-
-
-
- vapi_msg_hicn_api_node_params_get_hton(msg);
- params_send(msg, resp);
- vapi_msg_hicn_api_node_params_get_reply_ntoh(resp);
-
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
- }
- SRP_LOG_DBG_MSG("Operation failed");
- return SR_ERR_OPERATION_FAILED;
-}
-
-/**
-* @brief API to get hicn stat in vpp.
-*/
-static int hicn_node_stat_get_cb(const char *xpath, const sr_val_t *input,
-                                const size_t input_cnt, sr_val_t **output,
-                                size_t *output_cnt, void *private_ctx) {
-
- SRP_LOG_DBG_MSG("hicn status received successfully");
- vapi_msg_hicn_api_node_stats_get *msg;
- vapi_msg_hicn_api_node_stats_get_reply *resp;
- enum locks_name state;
- state=lstate;
- msg = vapi_alloc_hicn_api_node_stats_get(g_vapi_ctx_instance);
-
- vapi_msg_hicn_api_node_stats_get_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_node_stats_get_reply_ntoh(resp);
-
- if(resp->payload.retval){
-     SRP_LOG_DBG_MSG("Error updating state");
-     return SR_ERR_OPERATION_FAILED;
- }
- tlock(state);
-
- state_cache(resp);
-
- tunlock(state);
  return SR_ERR_OK;
 
-}
-
-/**
-* @brief API to get hicn strategy in vpp.
-*/
-static int hicn_strategy_get_cb(const char *xpath, const sr_val_t *input,
-                               const size_t input_cnt, sr_val_t **output,
-                               size_t *output_cnt, void *private_ctx) {
-
- SRP_LOG_DBG_MSG("hicn strategy receive successfully");
- vapi_msg_hicn_api_strategy_get *msg;
- vapi_msg_hicn_api_strategy_get_reply *resp;
-
- msg = vapi_alloc_hicn_api_strategy_get(g_vapi_ctx_instance);
-  SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
-
- msg->payload.strategy_id = input[0].data.uint32_val;
-
- vapi_msg_hicn_api_strategy_get_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_strategy_get_reply_ntoh(resp);
-
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
  }
 
- SRP_LOG_DBG_MSG("Operation failed");
- return SR_ERR_OPERATION_FAILED;
-}
-
 /**
 * @brief API to get hicn strategies in vpp.
 */
-static int hicn_strategies_get_cb(const char *xpath, const sr_val_t *input,
-                                 const size_t input_cnt, sr_val_t **output,
-                                 size_t *output_cnt, void *private_ctx) {
-
- SRP_LOG_DBG_MSG("hicn strategies received successfully");
- vapi_msg_hicn_api_strategies_get *msg;
- vapi_msg_hicn_api_strategies_get_reply *resp;
-
- msg = vapi_alloc_hicn_api_strategies_get(g_vapi_ctx_instance);
-  SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
+static int hicn_strategies_get_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
+SRP_LOG_DBGMSG("hicn strategies received successfully");
+vapi_msg_hicn_api_strategies_get *msg;
 
- vapi_msg_hicn_api_strategies_get_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_strategies_get_reply_ntoh(resp);
+msg = vapi_alloc_hicn_api_strategies_get(g_vapi_ctx_instance);
 
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
- }
-
- SRP_LOG_DBG_MSG("Operation failed");
- return SR_ERR_OPERATION_FAILED;
+if (vapi_hicn_api_strategies_get(g_vapi_ctx_instance, msg, call_hicn_api_strategies_get, NULL)!=VAPI_OK){
+  SRP_LOG_DBGMSG("Operation failed");
+  return SR_ERR_OPERATION_FAILED;
 }
+return SR_ERR_OK;
 
-/**
-* @brief API to get hicn route in vpp.
-*/
-static int hicn_route_get_cb(const char *xpath, const sr_val_t *input,
-                            const size_t input_cnt, sr_val_t **output,
-                            size_t *output_cnt, void *private_ctx) {
-
- SRP_LOG_DBG_MSG("hicn route receive successfully");
- vapi_msg_hicn_api_route_get *msg;
- vapi_msg_hicn_api_route_get_reply *resp;
-
- msg = vapi_alloc_hicn_api_route_get(g_vapi_ctx_instance);
-  SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
-
-
- if(strcmp(input[0].data.string_val,"-1")){
-
-   struct sockaddr_in sa;
-   inet_pton(AF_INET,  input[0].data.string_val, &(sa.sin_addr));
-   unsigned char * tmp = (unsigned char *) &sa.sin_addr.s_addr;
-   memcpy(&msg->payload.prefix.address.un.ip4[0],tmp,B32);
-   msg->payload.prefix.address.af = ADDRESS_IP4;
-
- }else if(strcmp(input[1].data.string_val,"-1")){
-
-   void *dst = malloc(sizeof(struct in6_addr));
-   inet_pton(AF_INET6, input[1].data.string_val, dst);
-   unsigned char * tmp = (unsigned char *) ((struct in6_addr *)dst)->s6_addr;
-   memcpy(&msg->payload.prefix.address.un.ip6[0],tmp,B128);
-   msg->payload.prefix.address.af = ADDRESS_IP6;
-
- }else{
-     SRP_LOG_DBG_MSG("Invalid local IP address");
-     return SR_ERR_OPERATION_FAILED;
- }
-
-
-
- msg->payload.prefix.len = input[2].data.uint8_val;
-
- vapi_msg_hicn_api_route_get_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_route_get_reply_ntoh(resp);
-
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
- }
-
- SRP_LOG_DBG_MSG("Operation failed");
- return SR_ERR_OPERATION_FAILED;
 }
 
 /**
 * @brief API to add hicn route nhops in vpp.
 */
-static int hicn_route_nhops_add_cb(const char *xpath, const sr_val_t *input,
-                                  const size_t input_cnt, sr_val_t **output,
-                                  size_t *output_cnt, void *private_ctx) {
+static int hicn_route_nhops_add_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
- SRP_LOG_DBG_MSG("hicn route nhops add received successfully");
+ SRP_LOG_DBGMSG("hicn route nhops add received successfully");
  vapi_msg_hicn_api_route_nhops_add *msg;
- vapi_msg_hicn_api_route_nhops_add_reply *resp;
 
  msg = vapi_alloc_hicn_api_route_nhops_add(g_vapi_ctx_instance);
-   SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
 
  if(strcmp(input[0].data.string_val,"-1")){
 
@@ -727,7 +708,7 @@ static int hicn_route_nhops_add_cb(const char *xpath, const sr_val_t *input,
    msg->payload.prefix.address.af = ADDRESS_IP6;
 
  }else{
-     SRP_LOG_DBG_MSG("Invalid local IP address");
+     SRP_LOG_DBGMSG("Invalid local IP address");
      return SR_ERR_OPERATION_FAILED;
  }
 
@@ -741,29 +722,22 @@ static int hicn_route_nhops_add_cb(const char *xpath, const sr_val_t *input,
  msg->payload.face_ids[6] = input[9].data.uint32_val;
  msg->payload.n_faces = input[10].data.uint8_val;
 
- vapi_msg_hicn_api_route_nhops_add_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_route_nhops_add_reply_ntoh(resp);
 
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
- }
-
- SRP_LOG_DBG_MSG("Operation failed");
+if(vapi_hicn_api_route_nhops_add(g_vapi_ctx_instance,msg,call_hicn_api_route_nhops_add,NULL)!=VAPI_OK){
+ SRP_LOG_DBGMSG("Operation failed");
  return SR_ERR_OPERATION_FAILED;
 }
+return SR_ERR_OK;
+}
 
 /**
 * @brief API to del hicn route in vpp.
 */
-static int hicn_route_del_cb(const char *xpath, const sr_val_t *input,
-                            const size_t input_cnt, sr_val_t **output,
-                            size_t *output_cnt, void *private_ctx) {
+static int hicn_route_del_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
- SRP_LOG_DBG_MSG("hicn route del received successfully");
+ SRP_LOG_DBGMSG("hicn route del received successfully");
  vapi_msg_hicn_api_route_del *msg;
- vapi_msg_hicn_api_route_del_reply *resp;
 
  msg = vapi_alloc_hicn_api_route_del(g_vapi_ctx_instance);
 
@@ -785,72 +759,54 @@ static int hicn_route_del_cb(const char *xpath, const sr_val_t *input,
    msg->payload.prefix.address.af = ADDRESS_IP6;
 
  }else{
-     SRP_LOG_DBG_MSG("Invalid local IP address");
+     SRP_LOG_DBGMSG("Invalid local IP address");
      return SR_ERR_OPERATION_FAILED;
  }
 
 
  msg->payload.prefix.len = input[2].data.uint8_val;
 
- vapi_msg_hicn_api_route_del_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_route_del_reply_ntoh(resp);
 
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
- }
-
- SRP_LOG_DBG_MSG("Operation failed");
+if(vapi_hicn_api_route_del(g_vapi_ctx_instance,msg,call_hicn_api_route_del,NULL)!=VAPI_OK){
+ SRP_LOG_DBGMSG("Operation failed");
  return SR_ERR_OPERATION_FAILED;
 }
+return SR_ERR_OK;
+}
 
 /**
 * @brief API to get face ip params in hicn in vpp.
 */
-static int hicn_face_ip_params_get_cb(const char *xpath, const sr_val_t *input,
-                                     const size_t input_cnt, sr_val_t **output,
-                                     size_t *output_cnt, void *private_ctx) {
+static int hicn_face_ip_params_get_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
- SRP_LOG_DBG_MSG("hicn face ip params get received successfully");
+ SRP_LOG_DBGMSG("hicn face ip params get received successfully");
  vapi_msg_hicn_api_face_ip_params_get *msg;
- vapi_msg_hicn_api_face_ip_params_get_reply *resp;
 
  msg = vapi_alloc_hicn_api_face_ip_params_get(g_vapi_ctx_instance);
-  SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
 
  msg->payload.faceid = input[0].data.uint32_val;
 
- vapi_msg_hicn_api_face_ip_params_get_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_face_ip_params_get_reply_ntoh(resp);
-
- if(!resp->payload.retval){
-     SRP_LOG_DBG("faceid(%d)-->intfc(%d)",input[0].data.uint32_val, resp->payload.swif);
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
- }
-
- SRP_LOG_DBG_MSG("Operation failed");
+if (vapi_hicn_api_face_ip_params_get(g_vapi_ctx_instance,msg,call_hicn_api_face_ip_params_get,NULL)!=VAPI_OK){
+ SRP_LOG_DBGMSG("Operation failed");
  return SR_ERR_OPERATION_FAILED;
-
+}
+return SR_ERR_OK;
 }
 
 /**
 * @brief API to get face ip params in hicn in vpp.
 */
-static int hicn_punting_add_cb(const char *xpath, const sr_val_t *input,
-                              const size_t input_cnt, sr_val_t **output,
-                              size_t *output_cnt, void *private_ctx) {
+static int hicn_punting_add_ip_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
- SRP_LOG_DBG_MSG("hicn punting add received successfully");
+ SRP_LOG_DBGMSG("hicn punting add received successfully");
  // allocate memory msg and resp
  vapi_msg_hicn_api_punting_add *msg;
- vapi_msg_hicn_api_punting_add_reply *resp;
 
  msg = vapi_alloc_hicn_api_punting_add(g_vapi_ctx_instance);
-  SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
 
+ msg->payload.type=IP_PUNT;
 
  if(strcmp(input[0].data.string_val,"-1")){
 
@@ -858,8 +814,8 @@ static int hicn_punting_add_cb(const char *xpath, const sr_val_t *input,
    // store this IP address in sa:
    inet_pton(AF_INET,  input[0].data.string_val, &(sa.sin_addr));
    unsigned char * tmp =  (unsigned char *) &sa.sin_addr.s_addr;
-   memcpy(&msg->payload.prefix.address.un.ip4[0],tmp,B32);
-   msg->payload.prefix.address.af = ADDRESS_IP4;
+   memcpy(&msg->payload.rule.ip.prefix.address.un.ip4[0],tmp,B32);
+   msg->payload.rule.ip.prefix.address.af = ADDRESS_IP4;
 
 
  }else if(strcmp(input[1].data.string_val,"-1")){
@@ -867,45 +823,36 @@ static int hicn_punting_add_cb(const char *xpath, const sr_val_t *input,
    void *dst = malloc(sizeof(struct in6_addr));
    inet_pton(AF_INET6, input[1].data.string_val, dst);
    unsigned char * tmp =(unsigned char *) ((struct in6_addr *)dst)->s6_addr;
-   memcpy(&msg->payload.prefix.address.un.ip6[0],tmp,B128);
-   msg->payload.prefix.address.af = ADDRESS_IP6;
+   memcpy(&msg->payload.rule.ip.prefix.address.un.ip6[0],tmp,B128);
+   msg->payload.rule.ip.prefix.address.af = ADDRESS_IP6;
 
  }else{
-     SRP_LOG_DBG_MSG("Invalid local IP address");
+     SRP_LOG_DBGMSG("Invalid local IP address");
      return SR_ERR_OPERATION_FAILED;
  }
 
- msg->payload.prefix.len = input[2].data.uint8_val;
- msg->payload.swif = input[3].data.uint32_val;
-
+ msg->payload.rule.ip.prefix.len = input[2].data.uint8_val;
+ msg->payload.rule.ip.swif = input[3].data.uint32_val;
 
- vapi_msg_hicn_api_punting_add_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_punting_add_reply_ntoh(resp);
 
- if(!resp->payload.retval){
-       SRP_LOG_DBG_MSG("Successfully done");
-       return SR_ERR_OK;
- }
-
- SRP_LOG_DBG_MSG("Operation failed");
+if (vapi_hicn_api_punting_add(g_vapi_ctx_instance, msg, call_hicn_api_punting_add, NULL)!=VAPI_OK){
+ SRP_LOG_DBGMSG("Operation failed");
  return SR_ERR_OPERATION_FAILED;
 }
+return SR_ERR_OK;
+}
 
 /**
 * @brief API to del hicn route nhops in vpp.
 */
-static int hicn_route_nhops_del_cb(const char *xpath, const sr_val_t *input,
-                                  const size_t input_cnt, sr_val_t **output,
-                                  size_t *output_cnt, void *private_ctx) {
+static int hicn_route_nhops_del_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
- SRP_LOG_DBG_MSG("hicn route nhop del received successfully");
- // allocate memory msg and resp
+ SRP_LOG_DBGMSG("hicn route nhop del received successfully");
+ // allocate memory msg
  vapi_msg_hicn_api_route_nhop_del *msg;
- vapi_msg_hicn_api_route_nhop_del_reply *resp;
 
  msg = vapi_alloc_hicn_api_route_nhop_del(g_vapi_ctx_instance);
-  SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
 
 
  if(strcmp(input[0].data.string_val,"-1")){
@@ -927,7 +874,7 @@ static int hicn_route_nhops_del_cb(const char *xpath, const sr_val_t *input,
    msg->payload.prefix.address.af = ADDRESS_IP6;
 
  }else{
-     SRP_LOG_DBG_MSG("Invalid local IP address");
+     SRP_LOG_DBGMSG("Invalid local IP address");
      return SR_ERR_OPERATION_FAILED;
  }
 
@@ -935,43 +882,35 @@ static int hicn_route_nhops_del_cb(const char *xpath, const sr_val_t *input,
  msg->payload.prefix.len = input[2].data.uint8_val;
  msg->payload.faceid = input[3].data.uint32_val;
 
- vapi_msg_hicn_api_route_nhop_del_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_route_nhop_del_reply_ntoh(resp);
 
- if(!resp->payload.retval){
-       SRP_LOG_DBG_MSG("Successfully done");
-       return SR_ERR_OK;
- }
-
-
- SRP_LOG_DBG_MSG("Operation failed");
+if (vapi_hicn_api_route_nhop_del(g_vapi_ctx_instance, msg, call_hicn_api_route_nhop_del,NULL)!=VAPI_OK){
+ SRP_LOG_DBGMSG("Operation failed");
  return SR_ERR_OPERATION_FAILED;
 }
+return SR_ERR_OK;
+}
 
 /**
 * @brief API to del hicn punting in vpp.
 */
-static int hicn_punting_del_cb(const char *xpath, const sr_val_t *input,
-                              const size_t input_cnt, sr_val_t **output,
-                              size_t *output_cnt, void *private_ctx) {
+static int hicn_punting_del_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
- SRP_LOG_DBG_MSG("hicn punting del received successfully");
- // allocate memory msg and resp
+ SRP_LOG_DBGMSG("hicn punting del received successfully");
+ // allocate memory msg
  vapi_msg_hicn_api_punting_del *msg;
- vapi_msg_hicn_api_punting_del_reply *resp;
 
  msg = vapi_alloc_hicn_api_punting_del(g_vapi_ctx_instance);
-  SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
 
+ msg->payload.type=IP_PUNT;
 
  if(strcmp(input[0].data.string_val,"-1")){
 
    struct sockaddr_in sa;
    inet_pton(AF_INET,  input[0].data.string_val, &(sa.sin_addr));
    unsigned char * tmp = (unsigned char *) &sa.sin_addr.s_addr;
-   memcpy(&msg->payload.prefix.address.un.ip4[0],tmp,B32);
-   msg->payload.prefix.address.af = ADDRESS_IP4;
+   memcpy(&msg->payload.rule.ip.prefix.address.un.ip4[0],tmp,B32);
+   msg->payload.rule.ip.prefix.address.af = ADDRESS_IP4;
 
 
  }else if(strcmp(input[1].data.string_val,"-1")){
@@ -979,76 +918,60 @@ static int hicn_punting_del_cb(const char *xpath, const sr_val_t *input,
    void *dst = malloc(sizeof(struct in6_addr));
    inet_pton(AF_INET6, input[1].data.string_val, dst);
    unsigned char * tmp = (unsigned char *) ((struct in6_addr *)dst)->s6_addr;
-   memcpy(&msg->payload.prefix.address.un.ip6[0],tmp,B128);
-   msg->payload.prefix.address.af = ADDRESS_IP6;
+   memcpy(&msg->payload.rule.ip.prefix.address.un.ip6[0],tmp,B128);
+   msg->payload.rule.ip.prefix.address.af = ADDRESS_IP6;
 
  }else{
-     SRP_LOG_DBG_MSG("Invalid local IP address");
+     SRP_LOG_DBGMSG("Invalid local IP address");
      return SR_ERR_OPERATION_FAILED;
  }
 
 
- msg->payload.prefix.len = input[2].data.uint8_val;
- msg->payload.swif = input[3].data.uint32_val;
+ msg->payload.rule.ip.prefix.len = input[2].data.uint8_val;
+ msg->payload.rule.ip.swif = input[3].data.uint32_val;
 
- vapi_msg_hicn_api_punting_del_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_punting_del_reply_ntoh(resp);
-
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
- }
 
+if (vapi_hicn_api_punting_del(g_vapi_ctx_instance, msg, call_hicn_api_punting_del,NULL)!=VAPI_OK){
+   SRP_LOG_DBGMSG("Operation failed");
+   return SR_ERR_OPERATION_FAILED;
+}
+return SR_ERR_OK;
 
- SRP_LOG_DBG_MSG("Operation failed");
- return SR_ERR_OPERATION_FAILED;
 }
 
 /**
 * @brief API to del hicn face ip in vpp.
 */
-static int hicn_face_ip_del_cb(const char *xpath, const sr_val_t *input,
-                              const size_t input_cnt, sr_val_t **output,
-                              size_t *output_cnt, void *private_ctx) {
+static int hicn_face_ip_del_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
- SRP_LOG_DBG_MSG("hicn face ip del received successfully");
- // allocate memory msg and resp
+ SRP_LOG_DBGMSG("hicn face ip del received successfully");
+ // allocate memory msg
  vapi_msg_hicn_api_face_ip_del *msg;
- vapi_msg_hicn_api_face_ip_del_reply *resp;
 
  msg = vapi_alloc_hicn_api_face_ip_del(g_vapi_ctx_instance);
-  SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
  msg->payload.faceid = input[0].data.uint32_val;
 
- vapi_msg_hicn_api_face_ip_del_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_face_ip_del_reply_ntoh(resp);
-
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
- }
 
- SRP_LOG_DBG_MSG("Operation failed");
+if(vapi_hicn_api_face_ip_del(g_vapi_ctx_instance,msg, call_hicn_api_face_ip_del,NULL)!=VAPI_OK){
+ SRP_LOG_DBGMSG("Operation failed");
  return SR_ERR_OPERATION_FAILED;
 }
+return SR_ERR_OK;
+}
 
 /**
 * @brief API to del hicn face ip in vpp.
 */
-static int hicn_face_ip_add_cb(const char *xpath, const sr_val_t *input,
-                              const size_t input_cnt, sr_val_t **output,
-                              size_t *output_cnt, void *private_ctx) {
+static int hicn_face_ip_add_cb(sr_session_ctx_t *session, const char *path, const sr_val_t *input, const size_t input_cnt,
+        sr_event_t event, uint32_t request_id, sr_val_t **output, size_t *output_cnt, void *private_data) {
 
- SRP_LOG_DBG_MSG("hicn face ip add received successfully");
+ SRP_LOG_DBGMSG("hicn face ip add received successfully");
 
 
  vapi_msg_hicn_api_face_ip_add *msg;
- vapi_msg_hicn_api_face_ip_add_reply *resp;
 
  msg = vapi_alloc_hicn_api_face_ip_add(g_vapi_ctx_instance);
- SRP_LOG_DBG("msg id:%d",msg->header._vl_msg_id);
  if(strcmp(input[0].data.string_val,"-1")){
      struct sockaddr_in sa;
      inet_pton(AF_INET,  input[0].data.string_val, &(sa.sin_addr));
@@ -1065,7 +988,7 @@ static int hicn_face_ip_add_cb(const char *xpath, const sr_val_t *input,
      msg->payload.face.local_addr.af = ADDRESS_IP6;
 
  }else{
-     SRP_LOG_DBG_MSG("Invalid local IP address");
+     SRP_LOG_DBGMSG("Invalid local IP address");
      return SR_ERR_OPERATION_FAILED;
  }
 
@@ -1087,27 +1010,57 @@ static int hicn_face_ip_add_cb(const char *xpath, const sr_val_t *input,
      msg->payload.face.remote_addr.af = ADDRESS_IP6;
 
  }else{
-     SRP_LOG_DBG_MSG("Invalid local IP address");
+     SRP_LOG_DBGMSG("Invalid local IP address");
      return SR_ERR_OPERATION_FAILED;
  }
 
- msg->payload.swif = input[4].data.uint32_val;  // This is the idx number of interface
+ msg->payload.face.swif = input[4].data.uint32_val;  // This is the idx number of interface
 
 
- vapi_msg_hicn_api_face_ip_add_hton(msg);
- params_send(msg,resp);
- vapi_msg_hicn_api_face_ip_add_reply_ntoh(resp);
+if(vapi_hicn_api_face_ip_add(g_vapi_ctx_instance,msg,call_hicn_api_face_ip_add,NULL)!=VAPI_OK){
+ SRP_LOG_DBGMSG("Operation failed");
+ return SR_ERR_OPERATION_FAILED;
+}
+return SR_ERR_OK;
+}
 
- if(!resp->payload.retval){
-     SRP_LOG_DBG_MSG("Successfully done");
-     return SR_ERR_OK;
- }
+ vapi_error_e
+hicn_api_routes_dump_cb(struct vapi_ctx_s *ctx, void *callback_ctx,
+                    vapi_error_e rv, bool is_last,
+                    vapi_payload_hicn_api_routes_details *reply)
+{
+
+   static int counter = 0;
+
+   tlock(lroute);
+   if (reply!=NULL){
+     rcurrent->route.route_id = counter;
+     rcurrent->route.prefix =  reply->prefix;
+     rcurrent->route.nfaces =   reply->nfaces;
+     rcurrent->route.strategy_id = reply->strategy_id;
+     for(int cnt=0;cnt<rcurrent->route.nfaces;cnt++)
+       rcurrent->route.faceids[cnt] = rcurrent->route.faceids[cnt];
+
+     counter++;
+     rcurrent = rcurrent->next;
+
+     SRP_LOG_DBG("nfaces %d", reply->nfaces);
+     SRP_LOG_DBG("strategy_id %d", reply->strategy_id);
+
+   }else
+   {
+     SRP_LOG_DBGMSG("---------Routes------- \n");
+     hicn_routes->nroute=counter;
+     counter=0;
+     rcurrent=hicn_routes->next;
+   }
+   tunlock(lroute);
+   return SR_ERR_OK;
 
- SRP_LOG_DBG_MSG("Operation failed");
- return SR_ERR_OPERATION_FAILED;
 }
 
 
+
 static vapi_error_e
 hicn_api_face_stats_dump_cb(struct vapi_ctx_s *ctx, void *callback_ctx,
                     vapi_error_e rv, bool is_last,
@@ -1115,69 +1068,38 @@ hicn_api_face_stats_dump_cb(struct vapi_ctx_s *ctx, void *callback_ctx,
 {
 
    static int counter = 0;
-/*
-   UNUSED(ctx); UNUSED(rv); UNUSED(is_last);
-   //struct elt **stackp;
-   ARG_CHECK2(VAPI_EINVAL, callback_ctx, reply);
-   stackp = (struct elt**) callback_ctx;
-   SRP_LOG_DBG("reply: %d:%d:%d", reply->faceid,reply->dtx_packets,reply->irx_packets);
-
-   vapi_payload_hicn_api_face_stats_details *passed;
-   ARG_CHECK2(VAPI_EINVAL, callback_ctx, reply);
-   passed = (vapi_payload_hicn_api_face_stats_details *) callback_ctx;
-   *passed = *reply;
-   SRP_LOG_DBG("reply %d", reply->faceid);*/
 
    tlock(lfaces);
    if (reply!=NULL){
 
-     current->face.faceid =  reply->faceid;
-     current->face.intfc =   1;
-     current->face.irx_packets = reply->irx_packets;
-     current->face.irx_bytes =   reply->irx_bytes;
-     current->face.itx_packets = reply->itx_packets;
-     current->face.itx_bytes =   reply->itx_bytes;
-     current->face.drx_packets = reply->drx_packets;
-     current->face.drx_bytes =   reply->drx_bytes;
-     current->face.dtx_packets = reply->dtx_packets;
-     current->face.dtx_bytes =   reply->dtx_bytes;
-     //hicn_faces->nface++; // Increment the number of faces
+     fcurrent->face.faceid =  reply->faceid;
+     fcurrent->face.intfc =   1;
+     fcurrent->face.irx_packets = reply->irx_packets;
+     fcurrent->face.irx_bytes =   reply->irx_bytes;
+     fcurrent->face.itx_packets = reply->itx_packets;
+     fcurrent->face.itx_bytes =   reply->itx_bytes;
+     fcurrent->face.drx_packets = reply->drx_packets;
+     fcurrent->face.drx_bytes =   reply->drx_bytes;
+     fcurrent->face.dtx_packets = reply->dtx_packets;
+     fcurrent->face.dtx_bytes =   reply->dtx_bytes;
      counter++;
-     current = current->next;
-     //current->next = memalign(MEM_ALIGN, sizeof(hicn_faces_t));
-     SRP_LOG_DBG_MSG("---------Face------- \n");
-     SRP_LOG_DBG("reply %d", reply->faceid);
-     SRP_LOG_DBG("reply %d", reply->drx_bytes);
-     SRP_LOG_DBG("reply %d", reply->dtx_bytes);
+     fcurrent = fcurrent->next;
+     SRP_LOG_DBG("faceid %d", reply->faceid);
+     SRP_LOG_DBG("drxB %d", reply->drx_bytes);
+     SRP_LOG_DBG("dtxB %d", reply->dtx_bytes);
 
    }else
    {
+     SRP_LOG_DBGMSG("---------Faces------- \n");
      hicn_faces->nface=counter;
      counter=0;
-     current=hicn_faces->next;
+     fcurrent=hicn_faces->next;
    }
    tunlock(lfaces);
    return SR_ERR_OK;
 }
 
 /**
-* @brief API to del hicn face state details in vpp.
-*/
-
-static int hicn_face_stats_details_cb(const char *xpath, const sr_val_t *input,
-                              const size_t input_cnt, sr_val_t **output,
-                              size_t *output_cnt, void *private_ctx) {
- //struct elt* stack=NULL ;
- SRP_LOG_DBG_MSG("hicn face state details received successfully");
- vapi_payload_hicn_api_face_stats_details resp={0};
- vapi_msg_hicn_api_face_stats_dump *msg;
- msg = vapi_alloc_hicn_api_face_stats_dump(g_vapi_ctx_instance);
- vapi_hicn_api_face_stats_dump(g_vapi_ctx_instance, msg, hicn_api_face_stats_dump_cb, &resp);
- return SR_ERR_OK;
-}
-
-
-/**
 * @brief Thread to update the state
 */
 static void *state_thread(void *arg) {
@@ -1191,46 +1113,42 @@ static void *state_thread(void *arg) {
  // pin the thread to a core
  if (pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset))
  {
-     SRP_LOG_DBG_MSG("Thread pining failed\n");
+     SRP_LOG_DBGMSG("Thread pining failed\n");
      exit(1);
  }
 
  vapi_msg_hicn_api_node_stats_get *msg=NULL;
- vapi_msg_hicn_api_node_stats_get_reply *resp=NULL;
  enum locks_name state;
  state=lstate;
 
  while(true){
 
+  // dump faces
+  vapi_msg_hicn_api_face_stats_dump *fmsg;
+  fmsg = vapi_alloc_hicn_api_face_stats_dump(g_vapi_ctx_instance);
+  vapi_hicn_api_face_stats_dump(g_vapi_ctx_instance, fmsg, hicn_api_face_stats_dump_cb, fcurrent);
+
+  // dump routes
+  vapi_msg_hicn_api_routes_dump *rmsg;
+  rmsg = vapi_alloc_hicn_api_routes_dump(g_vapi_ctx_instance);
+  vapi_hicn_api_routes_dump(g_vapi_ctx_instance, rmsg, hicn_api_routes_dump_cb, rcurrent);
+
+
+
   msg = vapi_alloc_hicn_api_node_stats_get(g_vapi_ctx_instance);
-  vapi_msg_hicn_api_node_stats_get_hton(msg);
 
-  if (VAPI_OK != vapi_send(g_vapi_ctx_instance, msg)) {
-     SRP_LOG_DBG_MSG("Sending msg to VPP failed");
-     // Here I should think about a recovery method
-     return NULL;
-  }
 
-   HICN_VPP_VAPI_RECV;
+  tlock(state);
 
-   vapi_msg_hicn_api_node_stats_get_reply_ntoh(resp);
+  if(vapi_hicn_api_node_stats_get(g_vapi_ctx_instance,msg,call_vapi_hicn_api_node_stats_get,NULL)!=VAPI_OK){
+  SRP_LOG_DBGMSG(" State operation failed");
+  }
 
-   if(resp->payload.retval){
-       SRP_LOG_DBG_MSG("Error updating state");
-       // Here I should think about a recovery method
-       return NULL;
-   }
 
-   //vapi_payload_hicn_api_face_stats_details  resp_dump={0};
-   vapi_msg_hicn_api_face_stats_dump *msg;
-   msg = vapi_alloc_hicn_api_face_stats_dump(g_vapi_ctx_instance);
-   vapi_hicn_api_face_stats_dump(g_vapi_ctx_instance, msg, hicn_api_face_stats_dump_cb, current);
+  tunlock(state);
+  sleep(1);
 
-   tlock(state);
-   state_cache(resp);
-   SRP_LOG_DBG_MSG("state updated");
-   tunlock(state);
-   sleep(1);
+  SRP_LOG_DBGMSG("state cached");
 
  }
  return NULL;
@@ -1242,15 +1160,16 @@ static void *state_thread(void *arg) {
 int hicn_subscribe_events(sr_session_ctx_t *session,
                          sr_subscription_ctx_t **subscription) {
    int rc = SR_ERR_OK;
-   SRP_LOG_DBG_MSG("Subscriging hicn.");
+   SRP_LOG_DBGMSG("Subscriging hicn.");
 
+   // Create state thread observation
    pthread_t state_tid;
    rc = pthread_create((pthread_t *)&state_tid, NULL, state_thread, NULL);
    if (rc != 0) {
-         SRP_LOG_DBG_MSG("Error making hicn state thread");
+         SRP_LOG_DBGMSG("Error making hicn state thread");
          return SR_ERR_OPERATION_FAILED;
    }
-   SRP_LOG_DBG_MSG("State thread created successfully.");
+   SRP_LOG_DBGMSG("State thread created successfully.");
 
    //Initializing the locks
    for (int i=0; i<NLOCKS; i++)
@@ -1259,191 +1178,148 @@ int hicn_subscribe_events(sr_session_ctx_t *session,
    //Initializing the buffer
    rc=init_buffer();
    if(rc!= SR_ERR_OK){
-       SRP_LOG_DBG_MSG("Problem in initializing the buffers\n");
+       SRP_LOG_DBGMSG("Problem in initializing the buffers\n");
        goto error;
    }
 
-   SRP_LOG_DBG_MSG("buffer initialized successfully.");
-
+   SRP_LOG_DBGMSG("buffer initialized successfully.");
 
-   rc=init_face_pool(current);
 
-   if(rc!= SR_ERR_OK){
-       SRP_LOG_DBG_MSG("Problem in initializing the face pool\n");
+   rc=init_face_pool(fcurrent);
+   if(rc){
+       SRP_LOG_DBGMSG("Problem in initializing the pools\n");
        goto error;
    }
 
 
-   SRP_LOG_DBG_MSG("face pool created successfully.");
-
-
-   // node state subscriptions
-
-   rc = sr_rpc_subscribe(session, "/hicn:node-params-get", hicn_node_params_get_cb,
-   session, SR_SUBSCR_CTX_REUSE, subscription);
-   if (rc != SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription node-params-get\n");
-     goto error;
+   rc=init_route_pool(rcurrent);
+   if(rc){
+       SRP_LOG_DBGMSG("Problem in initializing the pools\n");
+       goto error;
    }
 
 
-   // node state subscriptions
+   SRP_LOG_DBGMSG("pools created successfully.");
 
-   rc = sr_rpc_subscribe(session, "/hicn:node-stat-get", hicn_node_stat_get_cb,
-   session, SR_SUBSCR_CTX_REUSE, subscription);
-   if (rc != SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription stat-get\n");
-     goto error;
-   }
 
-   // strategies subscriptions
+/*
+ // subscripe for edit-config
+ rc = sr_module_change_subscribe(
+     session, "hicn","/hicn:hicn-conf", hicn_node_params_set_cb, g_vapi_ctx_instance,
+     0, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_ENABLED, subscription);
+ if (SR_ERR_OK != rc) {
+   //SRP_LOG_DBGMSG("Problem in subscription /hicn:hicn-conf\n");
+   perror("Problem in subscription /hicn:hicn-conf\n");
+   goto error;
+ }
+*/
 
-   rc = sr_rpc_subscribe(session, "/hicn:strategy-get", hicn_strategy_get_cb,
-   session, SR_SUBSCR_CTX_REUSE, subscription);
-   if (rc != SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription strategy-get\n");
-     goto error;
-   }
+   // strategies subscriptions
 
    rc = sr_rpc_subscribe(session, "/hicn:strategies-get",
-   hicn_strategies_get_cb, session, SR_SUBSCR_CTX_REUSE, subscription);
+   hicn_strategies_get_cb, session, 98,SR_SUBSCR_CTX_REUSE, subscription);
    if (rc!= SR_ERR_OK) {
-      SRP_LOG_DBG_MSG("Problem in subscription strategies-get\n");
+      SRP_LOG_DBGMSG("Problem in subscription strategies-get\n");
       goto error;
    }
 
-   // route subscriptions
-
-   rc = sr_rpc_subscribe(session, "/hicn:route-get", hicn_route_get_cb,
-   session, SR_SUBSCR_CTX_REUSE, subscription);
-   if (rc != SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription route-get\n");
-     goto error;
-   }
-
-   rc = sr_rpc_subscribe(session, "/hicn:route-del", hicn_route_del_cb,
-   session, SR_SUBSCR_CTX_REUSE, subscription);
-   if (rc != SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription route-del\n");
-     goto error;
-   }
-
-
    // route nhops subscriptions
 
    rc = sr_rpc_subscribe(session, "/hicn:route-nhops-add",
-   hicn_route_nhops_add_cb, session, SR_SUBSCR_CTX_REUSE, subscription);
+   hicn_route_nhops_add_cb, session, 95,SR_SUBSCR_CTX_REUSE, subscription);
     if (rc!= SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription route-nhops-add\n");
+     SRP_LOG_DBGMSG("Problem in subscription route-nhops-add\n");
      goto error;
    }
 
    rc = sr_rpc_subscribe(session, "/hicn:route-nhops-del",
-   hicn_route_nhops_del_cb, session, SR_SUBSCR_CTX_REUSE, subscription);
+   hicn_route_nhops_del_cb, session, 94,SR_SUBSCR_CTX_REUSE, subscription);
     if (rc!= SR_ERR_OK) {
-      SRP_LOG_DBG_MSG("Problem in subscription route-nhops-del\n");
+      SRP_LOG_DBGMSG("Problem in subscription route-nhops-del\n");
       goto error;
    }
 
+   rc = sr_rpc_subscribe(session, "/hicn:route-del", hicn_route_del_cb,
+   session, 96,SR_SUBSCR_CTX_REUSE, subscription);
+   if (rc != SR_ERR_OK) {
+     SRP_LOG_DBGMSG("Problem in subscription route-del\n");
+     goto error;
+   }
 
    // face ip subscriptions
 
    rc = sr_rpc_subscribe(session, "/hicn:face-ip-params-get",
-   hicn_face_ip_params_get_cb, session, SR_SUBSCR_CTX_REUSE, subscription);
+   hicn_face_ip_params_get_cb, session, 93,SR_SUBSCR_CTX_REUSE, subscription);
    if (rc != SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription face-ip-params-get\n");
+     SRP_LOG_DBGMSG("Problem in subscription face-ip-params-get\n");
      goto error;
    }
 
 
    rc = sr_rpc_subscribe(session, "/hicn:face-ip-add", hicn_face_ip_add_cb,
-   session, SR_SUBSCR_CTX_REUSE, subscription);
+   session, 92,SR_SUBSCR_CTX_REUSE, subscription);
    if (rc != SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription face-ip-add\n");
+     SRP_LOG_DBGMSG("Problem in subscription face-ip-add\n");
      goto error;
    }
 
    rc = sr_rpc_subscribe(session, "/hicn:face-ip-del", hicn_face_ip_del_cb,
-   session, SR_SUBSCR_CTX_REUSE, subscription);
+   session, 91,SR_SUBSCR_CTX_REUSE, subscription);
    if (rc != SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription face-ip-del\n");
+     SRP_LOG_DBGMSG("Problem in subscription face-ip-del\n");
      goto error;
    }
 
    // punting subscriptions
 
-   rc = sr_rpc_subscribe(session, "/hicn:punting-add", hicn_punting_add_cb,
-   session, SR_SUBSCR_CTX_REUSE, subscription);
+   rc = sr_rpc_subscribe(session, "/hicn:punting-add-ip", hicn_punting_add_ip_cb,
+   session, 90,SR_SUBSCR_CTX_REUSE, subscription);
    if (rc != SR_ERR_OK) {
-     SRP_LOG_DBG_MSG("Problem in subscription punting-add\n");
+     SRP_LOG_DBGMSG("Problem in subscription punting-add\n");
      goto error;
    }
 
  rc = sr_rpc_subscribe(session, "/hicn:punting-del", hicn_punting_del_cb,
-                       session, SR_SUBSCR_CTX_REUSE, subscription);
+                       session, 89,SR_SUBSCR_CTX_REUSE, subscription);
  if (rc != SR_ERR_OK) {
-   SRP_LOG_DBG_MSG("Problem in subscription punting-del\n");
-   goto error;
- }
-
-
- rc = sr_rpc_subscribe(session, "/hicn:face-stats-details", hicn_face_stats_details_cb,
-                       session, SR_SUBSCR_CTX_REUSE, subscription);
- if (rc != SR_ERR_OK) {
-   SRP_LOG_DBG_MSG("Problem in subscription face-stats-details\n");
-   goto error;
- }
-
- // subscripe for edit-config
- rc = sr_subtree_change_subscribe(
-     session, "/hicn:hicn-conf", hicn_node_params_set_cb, g_vapi_ctx_instance,
-     0, SR_SUBSCR_CTX_REUSE | SR_SUBSCR_EV_ENABLED, subscription);
- if (SR_ERR_OK != rc) {
-   SRP_LOG_DBG_MSG("Problem in subscription /hicn:hicn-conf\n");
+   SRP_LOG_DBGMSG("Problem in subscription punting-del\n");
    goto error;
  }
 
  // subscribe as hicn state data provider
- rc = sr_dp_get_items_subscribe(session, "/hicn:hicn-state/states",
-                                hicn_state_states_cb, NULL, SR_SUBSCR_CTX_REUSE,
-                                subscription);
- if (rc != SR_ERR_OK) {
-   SRP_LOG_DBG_MSG("Problem in subscription /hicn:hicn-state/states\n");
-   goto error;
- }
 
- rc = sr_dp_get_items_subscribe(session, "/hicn:hicn-state/strategies",
-                                hicn_state_strategies_cb, NULL, SR_SUBSCR_CTX_REUSE,
+ rc = sr_oper_get_items_subscribe(session, "hicn","/hicn:hicn-state/states",
+                                hicn_state_states_cb, NULL, SR_SUBSCR_CTX_REUSE,
                                 subscription);
  if (rc != SR_ERR_OK) {
-   SRP_LOG_DBG_MSG("Problem in subscription /hicn:hicn-state/strategies\n");
+   SRP_LOG_DBGMSG("Problem in subscription /hicn:hicn-state/states\n");
    goto error;
  }
 
 
- rc = sr_dp_get_items_subscribe(session, "/hicn:hicn-state/routes",
+ rc = sr_oper_get_items_subscribe(session, "hicn","/hicn:hicn-state/routes",
                                 hicn_state_route_cb, NULL, SR_SUBSCR_CTX_REUSE,
                                 subscription);
  if (rc != SR_ERR_OK) {
-   SRP_LOG_DBG_MSG("Problem in subscription /hicn:hicn-state/routes\n");
+   SRP_LOG_DBGMSG("Problem in subscription /hicn:hicn-state/routes\n");
    goto error;
  }
 
 
- rc = sr_dp_get_items_subscribe(session, "/hicn:hicn-state/faces",
+ rc = sr_oper_get_items_subscribe(session, "hicn","/hicn:hicn-state/faces",
                                 hicn_state_faces_cb, NULL, SR_SUBSCR_CTX_REUSE,
                                 subscription);
  if (rc != SR_ERR_OK) {
-   SRP_LOG_DBG_MSG("Problem in subscription /hicn:hicn-state/faces\n");
+   SRP_LOG_DBGMSG("Problem in subscription /hicn:hicn-state/faces\n");
    goto error;
  }
 
 
- SRP_LOG_INF_MSG("hicn plugin initialized successfully.");
+   SRP_LOG_DBGMSG("hicn plugin initialized successfully.\n");
  return SR_ERR_OK;
 
 error:
- SRP_LOG_ERR_MSG("Error by initialization of the hicn plugin.");
+ SRP_LOG_ERRMSG("Error by initialization of the hicn plugin.");
  sr_plugin_cleanup_cb(session, &g_vapi_ctx_instance);
  return rc;
 }
diff --git a/ctrl/sysrepo-plugins/hicn-plugin/plugin/model/hicn_model.h b/ctrl/sysrepo-plugins/hicn-plugin/plugin/model/hicn_model.h
index 02317d5d6..9c5d9df9a 100644
--- a/ctrl/sysrepo-plugins/hicn-plugin/plugin/model/hicn_model.h
+++ b/ctrl/sysrepo-plugins/hicn-plugin/plugin/model/hicn_model.h
@@ -17,6 +17,7 @@
 #define __IETF_HICN_H__
 
 #include "../hicn_vpp_comm.h"
+#include <vapi/hicn.api.vapi.h>
 
 #define MEM_ALIGN 4096
 #define B32 4
@@ -35,19 +36,11 @@ enum locks_name {lstate, lstrategy, lstrategies, lroute, lfaces};
 #define NSTATE_LEAVES 15
 #define NSTRATEGY_LEAVES 1
 #define NSTRATEGIES_LEAVES 2
-#define NROUTE_LEAVES 2
 #define MAX_FACE_POOL 100
-#define FACES_CHILDREN 9 /*this is the number of children of each leave*/
+#define MAX_ROUTE_POOL 100
 
-
-#define  params_send( msg , resp ) \
-{  \
- if (VAPI_OK != vapi_send(g_vapi_ctx_instance, (msg))) {  \
-   SRP_LOG_DBG_MSG("Sending msg to VPP failed"); \
-   return SR_ERR_OPERATION_FAILED; \
- }   \
- HICN_VPP_VAPI_RECV;   \
-};
+#define FACES_CHILDREN 9 /*this is the number of children of each leave in face except the key*/
+#define ROUTES_CHILDREN  2 /*this is the number of children of each leave in face except the key*/
 
 typedef struct __attribute__ ((__packed__)) {
 
@@ -110,6 +103,14 @@ typedef struct __attribute__ ((__packed__)) {
  uint64_t dtx_bytes;
 } hicn_face_inf_t;
 
+typedef struct __attribute__ ((__packed__)) {
+  u32 route_id;
+  vapi_type_prefix prefix;
+  u32 faceids[5];
+  u8 nfaces;
+  u32 strategy_id;
+} hicn_route_inf_t;
+
 
 struct  hicn_faces_s{
  hicn_face_inf_t face;
@@ -121,34 +122,16 @@ typedef struct  __attribute__ ((__packed__)) {
  struct hicn_faces_s * next;
 } hicn_faces_t;
 
-// typedef struct __attribute__ ((__packed__)) {
-//   int32_t retval;
-//   uint32_t faceid;
-//   uint64_t irx_packets;
-//   uint64_t irx_bytes;
-//   uint64_t itx_packets;
-//   uint64_t itx_bytes;
-//   uint64_t drx_packets;
-//   uint64_t drx_bytes;
-//   uint64_t dtx_packets;
-//   uint64_t dtx_bytes;
-// } hicn_face_stat_t;
-
-// typedef struct __attribute__ ((__packed__)) {
-
-//   int32_t retval;
-//   uint32_t faceid;
-//   uint64_t irx_packets;
-//   uint64_t irx_bytes;
-//   uint64_t itx_packets;
-//   uint64_t itx_bytes;
-//   uint64_t drx_packets;
-//   uint64_t drx_bytes;
-//   uint64_t dtx_packets;
-//   uint64_t dtx_bytes;
-
-// } hicn_state_face_t;
+struct hicn_routes_s{
+ hicn_route_inf_t route;
+ struct hicn_routes_s * next;
+};
+
 
+typedef struct  __attribute__ ((__packed__)) {
+ uint32_t nroute;
+ struct hicn_routes_s * next;
+} hicn_routes_t;
 
 int hicn_subscribe_events(sr_session_ctx_t *session,
                          sr_subscription_ctx_t **subscription);
diff --git a/ctrl/sysrepo-plugins/yang/hicn/hicn.yang b/ctrl/sysrepo-plugins/yang/hicn/hicn.yang
index 484fec6f0..d53cd8aa0 100644
--- a/ctrl/sysrepo-plugins/yang/hicn/hicn.yang
+++ b/ctrl/sysrepo-plugins/yang/hicn/hicn.yang
@@ -2,12 +2,12 @@ module hicn {
 namespace "urn:sysrepo:hicn";
 prefix hcn;
 
-revision 2019-05-7 {
+/* new data types and grouping definition to forward the remote request toward hicn controler--to-->hicn */
+
+revision 2019-10-29{
     description "Initial revision.";
 }
 
-/* new data types and grouping definition to forward the remote request toward hicn controler--to-->hicn */
-
 typedef float {
     type decimal64 {
         fraction-digits 2;
@@ -41,20 +41,8 @@ leaf cs_reserved_app {
         default -1;
     }
 
-leaf pit_dflt_lifetime_sec {
-        description "Default PIT entry lifetime, otherwise -1 to assign default value.";
-        type float;
-        default -1;
-    }
-
 leaf pit_max_lifetime_sec {
-        description "Upper bound on PIT entry lifetime, otherwise -1 to assign default value.";
-        type float;
-        default -1;
-    }
-
-leaf pit_min_lifetime_sec {
-        description "Upper bound on PIT entry lifetime, otherwise -1 to assign default value .";
+        description "Default PIT entry lifetime, otherwise -1 to assign default value.";
         type float;
         default -1;
     }
@@ -209,7 +197,7 @@ leaf len {
     }
 }
 
-grouping punting_add {
+grouping punting_add_ip {
 
 leaf ip4 {
         description "ip4 to be added to the FIB.";
@@ -405,16 +393,22 @@ grouping strategy-reply {
 
 grouping route-reply {
 
-    leaf faceids {
-            description "Enable / disable ICN forwarder in VPP.";
-            type uint32;
-
-        }
+   list route{
+     key routeid;
+     leaf routeid {
+                description "the unique key for each item.";
+                type uint32;
+     }
+     leaf prefix {
+            description "IP address.";
+            type string;
 
-    leaf strategy_id {
+     }
+     leaf strategy_id {
             description "compile-time plugin features.";
             type uint32;
-        }
+     } 
+   } 
 }
 
 grouping strategies-reply {
@@ -429,37 +423,25 @@ grouping strategies-reply {
 
 }
 
-/* Hicn configuration */
-
-container hicn-conf {
-    description "config data container for the hicn-vpp.";
-    container params{
-        uses params;
-    }
-}
-
 
 /* Hicn operational data */
 
 container hicn-state {
+
     config false;
     description "operational data container for the hicn.";
-
+    container faces{
+        uses face-stats-reply;
+    }
     container states{
         uses states-reply;
     }
     container routes{
         uses route-reply;
     }
-    container strategies{
-        uses strategies-reply;
-    }
-    container faces{
-        uses face-stats-reply;
-    }
-
 }
 
+
 /* RPC Definitions */
 
 
@@ -479,17 +461,6 @@ rpc node-stat-get {
     description "Operation to get hicn status in vpp.";
 }
 
-
-rpc strategy-get {
-        description "Operation to get hicn strategy.";
-    input {
-        leaf strategy_id {
-            description "Upper bound on PIT entry lifetime, otherwise -1 to assign default value .";
-            type uint32;
-        }
-    }
-}
-
 rpc  strategies-get {
         description "Operation to get hicn strategies.";
 }
@@ -549,23 +520,19 @@ rpc  face-ip-del {
     }
 }
 
-rpc  punting-add {
+rpc  punting-add-ip {
         description "Operation to add hicn punt.";
     input {
-        uses punting_add;
+        uses punting_add_ip;
     }
 }
 
 rpc  punting-del {
         description "Operation to del hicn punt.";
     input {
-        uses punting_add; /* It uses the same payload as the add*/
+        uses punting_add_ip; /* It uses the same payload as the add*/
     }
 }
 
-rpc  face-stats-details {
-        description "Operation to take stat per face.";
-}
-
 
 }