[HICN-488] Adding lock to vapi calls and manage vapi_connect in order to connect only once.

- Added library to hicn-plugin called safe_vapi that takes care of handling concurrent calls to the vapi.
- Removed dependency of libhicnctrl from libtransport and added dependency to safe_vapi.
- Added dependency to safe_vapi on libhicnctrl

Change-Id: Ie49e8319f64a50e7ed6a56e041db977c3b184cc5
Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>

5 files changed, 484 insertions, 301 deletions

diff --git a/hicn-plugin/CMakeLists.txt b/hicn-plugin/CMakeLists.txt
index e8347c150..d0781e8fa 100644
--- a/hicn-plugin/CMakeLists.txt
+++ b/hicn-plugin/CMakeLists.txt
@@ -12,306 +12,7 @@
 # limitations under the License.
 
 cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
-project(hicn-plugin)
 
-include(GNUInstallDirs)
+add_subdirectory(src)
 
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
-    "${CMAKE_CURRENT_SOURCE_DIR}/../cmake/Modules/"
-    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules/"
-)
-
-set (CMAKE_CXX_STANDARD 11)
-set (CMAKE_C_STANDARD 11)
-
-# Check for memfd_create syscall
-include(CheckSymbolExists)
-CHECK_SYMBOL_EXISTS ( "__NR_memfd_create" "sys/syscall.h" HAVE_MEMFD_CREATE )
-if ( HAVE_MEMFD_CREATE )
-    add_definitions ( -DHAVE_MEMFD_CREATE )
-endif()
-
-set(HICN_PLUGIN hicn-plugin CACHE INTERNAL "" FORCE)
-
-include (Packaging)
-
-# Dependencies
-
-find_package(Vpp REQUIRED)
-
-include_directories(${VPP_INCLUDE_DIR})
-
-set(LIBHICN_FILES
-    ../lib/src/mapme.c
-    ../lib/src/name.c
-    ../lib/src/ops.c
-    ../lib/src/protocol/ah.c
-    ../lib/src/protocol/icmp.c
-    ../lib/src/protocol/ipv4.c
-    ../lib/src/protocol/ipv6.c
-    ../lib/src/protocol/tcp.c
-)
-
-set(LIBHICN_HEADER_FILES_SRC
-    ../lib/includes/hicn/hicn.h
-    ../lib/includes/hicn/base.h
-    ../lib/includes/hicn/common.h
-    ../lib/includes/hicn/error.h
-    ../lib/includes/hicn/header.h
-    ../lib/includes/hicn/name.h
-    ../lib/includes/hicn/protocol.h
-    ../lib/includes/hicn/ops.h
-    ../lib/includes/hicn/mapme.h
-)
-
-set(LIBHICN_HEADER_FILES_PROTOCOL
-    ../lib/includes/hicn/protocol/ah.h
-    ../lib/includes/hicn/protocol/icmp.h
-    ../lib/includes/hicn/protocol/icmprd.h
-    ../lib/includes/hicn/protocol/ipv4.h
-    ../lib/includes/hicn/protocol/ipv6.h
-    ../lib/includes/hicn/protocol/tcp.h
-    ../lib/includes/hicn/protocol/udp.h
-)
-
-set(LIBHICN_HEADER_FILES_UTIL
-    ../lib/includes/hicn/util/ip_address.h
-    ../lib/includes/hicn/util/token.h
-    ../lib/includes/hicn/util/types.h
-)
-
-set(HICN_PLUGIN_SOURCE_FILES
-    src/hicn.c
-    src/hicn_api.c
-    src/cli.c
-    src/hashtb.c
-    src/mgmt.c
-    src/pcs.c
-    src/route.c
-    src/strategy_dpo_manager.c
-    src/strategy.c
-    src/interest_pcslookup_node.c
-    src/interest_hitpit_node.c
-    src/interest_hitcs_node.c
-    src/data_pcslookup_node.c
-    src/data_fwd_node.c
-    src/data_push_node.c
-    src/error.c
-    src/faces/face_cli.c
-    src/faces/face.c
-    src/faces/ip/face_ip.c
-    src/faces/ip/face_ip_cli.c
-    src/faces/ip/face_ip_node.c
-    src/faces/ip/iface_ip_node.c
-    src/faces/ip/dpo_ip.c
-    src/faces/udp/face_udp.c
-    src/faces/udp/face_udp_cli.c
-    src/faces/udp/face_udp_node.c
-    src/faces/udp/iface_udp_node.c
-    src/faces/udp/dpo_udp.c
-    src/faces/app/address_mgr.c
-    src/faces/app/face_cons.c
-    src/faces/app/face_prod.c
-    src/faces/app/face_prod_node.c
-    src/faces/app/face_app_cli.c
-    src/punt.c
-    src/pg.c
-    src/strategies/dpo_mw.c
-    src/strategies/strategy_mw.c
-    src/strategies/strategy_mw_cli.c
-    src/strategies/dpo_rr.c
-    src/strategies/strategy_rr.c
-    src/cache_policies/cs_lru.c
-    src/mapme_ack_node.c
-    src/mapme_ctrl_node.c
-    src/mapme_eventmgr.c
-)
-
-set(HICN_PLUGIN_HEADER_FILES
-    src/hicn_all_api_h.h
-    src/hashtb.h
-    src/mgmt.h
-    src/params.h
-    src/pcs.h
-    src/hicn_api.h
-    src/hicn.h
-    src/state.h
-    src/infra.h
-    src/hicn_msg_enum.h
-    src/parser.h
-    src/route.h
-    src/strategy_dpo_ctx.h
-    src/strategy_dpo_manager.h
-    src/strategy.h
-    src/interest_pcslookup.h
-    src/interest_hitpit.h
-    src/interest_hitcs.h
-    src/data_pcslookup.h
-    src/data_fwd.h
-    src/error.h
-    src/face_db.h
-    src/faces/face.h
-    src/faces/ip/face_ip.h
-    src/faces/ip/face_ip_node.h
-    src/faces/ip/iface_ip_node.h
-    src/faces/ip/dpo_ip.h
-    src/faces/udp/face_udp.h
-    src/faces/udp/face_udp_node.h
-    src/faces/udp/iface_udp_node.h
-    src/faces/udp/dpo_udp.h
-    src/faces/app/address_mgr.h
-    src/faces/app/face_cons.h
-    src/faces/app/face_prod.h
-    src/punt.h
-    src/pg.h
-    src/strategies/dpo_mw.h
-    src/strategies/strategy_mw.h
-    src/strategies/dpo_rr.h
-    src/strategies/strategy_rr.h
-    src/cache_policies/cs_policy.h
-    src/cache_policies/cs_lru.h
-    src/mapme.h
-    src/mapme_ack.h
-    src/mapme_ctrl.h
-    src/mapme_eventmgr.h
-)
-
-set(HICN_API_TEST_SOURCE_FILES
-    src/hicn_api_test.c
-    src/error.c)
-
-set(HICN_API_HEADER_FILES
-    src/hicn_msg_enum.h
-    src/hicn_all_api_h.h
-    src/hicn_api.h
-    src/error.h)
-
-set(HICN_API_GENERATED_FILES
-    ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins/hicn/hicn.api.h)
-
-set(HICN_VAPI_GENERATED_FILES
-    ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.vapi.h
-    ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.vapi.hpp)
-
-set(HICN_VPP_STARTUP_CONF_FILE
-    ${CMAKE_BINARY_DIR}/startup.conf)
-
-if (NOT VPP_HOME)
-    set(VPP_HOME /usr)
-endif()
-
-if (NOT CMAKE_BUILD_TYPE)
-    set (CMAKE_BUILD_TYPE "Release")
-endif (NOT CMAKE_BUILD_TYPE)
-
-SET(HICN_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR} CACHE STRING "hicn_install_prefix")
-
-if (CMAKE_BUILD_TYPE STREQUAL "Release")
-   set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -Wall  -march=native -O3 -g")
-elseif (CMAKE_BUILD_TYPE STREQUAL "Debug")
-   set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wall -march=native -O0 -g")
-   add_definitions(-DCLIB_DEBUG -fPIC -fstack-protector-all)
-endif()
-
-file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/hicn)
-file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/vapi)
-file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/vnet/ip)
-
-# These files are missing from vpp binary distribution
-execute_process(
-    COMMAND
-    bash -c
-    "if [ ! -e ${CMAKE_CURRENT_BINARY_DIR}/vapi_json_parser.py ]; then
-        curl https://raw.githubusercontent.com/FDio/vpp/stable/1908/src/vpp-api/vapi/vapi_json_parser.py -o ${CMAKE_CURRENT_BINARY_DIR}/vapi_json_parser.py;
-    fi;
-    if [ ! -e ${CMAKE_CURRENT_BINARY_DIR}/vapi_c_gen.py ]; then
-        curl https://raw.githubusercontent.com/FDio/vpp/stable/1908/src/vpp-api/vapi/vapi_c_gen.py -o ${CMAKE_CURRENT_BINARY_DIR}/vapi_c_gen.py;
-    fi;
-    if [ ! -e ${CMAKE_CURRENT_BINARY_DIR}/vapi_cpp_gen.py ]; then
-        curl https://raw.githubusercontent.com/FDio/vpp/stable/1908/src/vpp-api/vapi/vapi_cpp_gen.py -o ${CMAKE_CURRENT_BINARY_DIR}/vapi_cpp_gen.py;
-    fi;
-    if [ ! -e ${CMAKE_CURRENT_BINARY_DIR}/vnet/ip/ip_types.api ]; then
-        curl https://raw.githubusercontent.com/FDio/vpp/stable/1908/src/vnet/ip/ip_types.api -o ${CMAKE_CURRENT_BINARY_DIR}/vnet/ip/ip_types.api;
-    fi;
-    chmod +x ${CMAKE_CURRENT_BINARY_DIR}/vapi_json_parser.py ${CMAKE_CURRENT_BINARY_DIR}/vapi_c_gen.py ${CMAKE_CURRENT_BINARY_DIR}/vapi_cpp_gen.py"
-)
-
-add_custom_command(
-    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins/hicn/hicn.api.h ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
-    COMMAND ${VPP_HOME}/bin/vppapigen ARGS --includedir ${CMAKE_CURRENT_BINARY_DIR} --input ${CMAKE_CURRENT_SOURCE_DIR}/src/hicn.api --output ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins/hicn/hicn.api.h
-    COMMAND ${VPP_HOME}/bin/vppapigen ARGS JSON --includedir ${CMAKE_CURRENT_BINARY_DIR} --input ${CMAKE_CURRENT_SOURCE_DIR}/src/hicn.api --output ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
-)
-add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.vapi.h ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.vapi.hpp
-    COMMAND ${CMAKE_CURRENT_BINARY_DIR}/vapi_c_gen.py ARGS ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
-    COMMAND ${CMAKE_CURRENT_BINARY_DIR}/vapi_cpp_gen.py ARGS ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
-    DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
-)
-
-include_directories(SYSTEM)
-include_directories(${CMAKE_CURRENT_BINARY_DIR})
-
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHICN_VPP_PLUGIN=1")
-add_library(hicn_plugin SHARED
-    ${LIBHICN_FILES}
-    ${HICN_PLUGIN_SOURCE_FILES}
-    ${HICN_API_GENERATED_FILES}
-    ${HICN_VAPI_GENERATED_FILES})
-
-file(COPY ${HICN_API_HEADER_FILES} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins/hicn)
-include_directories(${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins)
-
-file(COPY ${LIBHICN_HEADER_FILES_SRC} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/hicn)
-file(COPY ${LIBHICN_HEADER_FILES_PROTOCOL} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/hicn/protocol)
-file(COPY ${LIBHICN_HEADER_FILES_UTIL} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/hicn/util)
-
-add_library(hicn_api_test_plugin SHARED
-	${HICN_API_TEST_SOURCE_FILES}
-        ${HICN_API_GENERATED_FILES})
-
-set(VPP_INSTALL_PLUGIN ${HICN_INSTALL_PREFIX}/vpp_plugins)
-set(VPP_INSTALL_API_TEST_PLUGIN ${HICN_INSTALL_PREFIX}/vpp_api_test_plugins CACHE STRING "vpp_install_api_test_plugin")
-set(VPP_STARTUP_CONF /etc/vpp/)
-
-set_target_properties(hicn_plugin
-        PROPERTIES
-        LINKER_LANGUAGE C
-        INSTALL_RPATH ${VPP_INSTALL_PLUGIN}
-        PREFIX "")
-set_target_properties(hicn_api_test_plugin
-        PROPERTIES
-        LINKER_LANGUAGE C
-        PREFIX "")
-
-install(DIRECTORY
-        DESTINATION ${VPP_INSTALL_PLUGIN}
-        COMPONENT ${HICN_PLUGIN})
-install(TARGETS hicn_plugin
-        DESTINATION
-        ${VPP_INSTALL_PLUGIN}
-        COMPONENT ${HICN_PLUGIN})
-
-install(DIRECTORY
-        DESTINATION ${VPP_INSTALL_API_TEST_PLUGIN}
-        COMPONENT ${HICN_PLUGIN})
-install(TARGETS hicn_api_test_plugin
-        DESTINATION ${VPP_INSTALL_API_TEST_PLUGIN}
-        COMPONENT ${HICN_PLUGIN})
-
-install(FILES ${HICN_API_HEADER_FILES} ${HICN_API_GENERATED_FILES}
-        DESTINATION ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}/vpp_plugins/hicn
-        COMPONENT ${HICN_PLUGIN}-dev)
-
-install(FILES ${HICN_API_GENERATED_FILES}
-        DESTINATION ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}/vpp_plugins/hicn
-        COMPONENT ${HICN_PLUGIN_DEV})
-
-install(FILES ${HICN_VAPI_GENERATED_FILES}
-        DESTINATION ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}/vapi
-        COMPONENT ${HICN_PLUGIN}-dev)
-
-#Set variables for other project depending on hicn-plugin
-set(HICNPLUGIN_INCLUDE_DIRS
-    ${CMAKE_CURRENT_BINARY_DIR}
-    ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins
-    CACHE INTERNAL "" FORCE)
-set(HICNPLUGIN_LIBRARIES ${VPP_LIBRARIES} CACHE INTERNAL "" FORCE)
\ No newline at end of file
+add_subdirectory(vapi)
\ No newline at end of file
diff --git a/hicn-plugin/src/CMakeLists.txt b/hicn-plugin/src/CMakeLists.txt
new file mode 100644
index 000000000..0f2debcb9
--- /dev/null
+++ b/hicn-plugin/src/CMakeLists.txt
@@ -0,0 +1,318 @@
+# Copyright (c) 2017-2019 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
+project(hicn-plugin)
+
+include(GNUInstallDirs)
+
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
+    "${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Modules/"
+    "${CMAKE_CURRENT_SOURCE_DIR}/../cmake/Modules/"
+)
+include(BuildMacros)
+
+set (CMAKE_CXX_STANDARD 11)
+set (CMAKE_C_STANDARD 11)
+
+# Check for memfd_create syscall
+include(CheckSymbolExists)
+CHECK_SYMBOL_EXISTS ( "__NR_memfd_create" "sys/syscall.h" HAVE_MEMFD_CREATE )
+if ( HAVE_MEMFD_CREATE )
+    add_definitions ( -DHAVE_MEMFD_CREATE )
+endif()
+
+set(${HICN_PLUGIN}-dev hicn-plugin CACHE INTERNAL "" FORCE SCOPE PARENT)
+
+include (Packaging)
+
+# Dependencies
+
+find_package(Vpp REQUIRED)
+
+include_directories(${VPP_INCLUDE_DIR})
+
+set(LIBHICN_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/src/mapme.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/src/name.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/src/ops.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/src/protocol/ah.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/src/protocol/icmp.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/src/protocol/ipv4.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/src/protocol/ipv6.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/src/protocol/tcp.c
+)
+
+set(LIBHICN_HEADER_FILES_SRC
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/hicn.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/base.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/common.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/error.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/header.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/name.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/protocol.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/ops.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/mapme.h
+)
+
+set(LIBHICN_HEADER_FILES_PROTOCOL
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/protocol/ah.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/protocol/icmp.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/protocol/icmprd.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/protocol/ipv4.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/protocol/ipv6.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/protocol/tcp.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/protocol/udp.h
+)
+
+set(LIBHICN_HEADER_FILES_UTIL
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/util/ip_address.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/util/token.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../lib/includes/hicn/util/types.h
+)
+
+set(HICN_PLUGIN_SOURCE_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn_api.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/cli.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/hashtb.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/mgmt.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/pcs.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/route.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategy_dpo_manager.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategy.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/interest_pcslookup_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/interest_hitpit_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/interest_hitcs_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/data_pcslookup_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/data_fwd_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/data_push_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/error.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/face_cli.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/face.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/ip/face_ip.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/ip/face_ip_cli.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/ip/face_ip_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/ip/iface_ip_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/ip/dpo_ip.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/udp/face_udp.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/udp/face_udp_cli.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/udp/face_udp_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/udp/iface_udp_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/udp/dpo_udp.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/app/address_mgr.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/app/face_cons.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/app/face_prod.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/app/face_prod_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/app/face_app_cli.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/punt.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/pg.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategies/dpo_mw.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategies/strategy_mw.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategies/strategy_mw_cli.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategies/dpo_rr.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategies/strategy_rr.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/cache_policies/cs_lru.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/mapme_ack_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/mapme_ctrl_node.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/mapme_eventmgr.c
+)
+
+set(HICN_PLUGIN_HEADER_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn_all_api_h.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/hashtb.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/mgmt.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/params.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/pcs.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn_api.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/state.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/infra.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn_msg_enum.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/parser.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/route.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategy_dpo_ctx.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategy_dpo_manager.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategy.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/interest_pcslookup.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/interest_hitpit.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/interest_hitcs.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/data_pcslookup.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/data_fwd.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/error.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/face_db.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/face.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/ip/face_ip.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/ip/face_ip_node.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/ip/iface_ip_node.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/ip/dpo_ip.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/udp/face_udp.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/udp/face_udp_node.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/udp/iface_udp_node.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/udp/dpo_udp.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/app/address_mgr.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/app/face_cons.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/faces/app/face_prod.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/punt.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/pg.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategies/dpo_mw.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategies/strategy_mw.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategies/dpo_rr.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/strategies/strategy_rr.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/cache_policies/cs_policy.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/cache_policies/cs_lru.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/mapme.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/mapme_ack.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/mapme_ctrl.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/mapme_eventmgr.h
+)
+
+set(HICN_API_TEST_SOURCE_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn_api_test.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/error.c)
+
+set(HICN_API_HEADER_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn_msg_enum.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn_all_api_h.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/hicn_api.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/error.h)
+
+set(HICN_API_GENERATED_FILES
+    ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins/hicn/hicn.api.h)
+
+set(HICN_VAPI_GENERATED_FILES
+    ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.vapi.h
+    ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.vapi.hpp)
+
+set(HICN_VPP_STARTUP_CONF_FILE
+    ${CMAKE_BINARY_DIR}/startup.conf)
+
+if (NOT VPP_HOME)
+    set(VPP_HOME /usr)
+endif()
+
+if (NOT CMAKE_BUILD_TYPE)
+    set (CMAKE_BUILD_TYPE "Release")
+endif (NOT CMAKE_BUILD_TYPE)
+
+SET(HICN_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR} CACHE STRING "hicn_install_prefix")
+
+if (CMAKE_BUILD_TYPE STREQUAL "Release")
+   set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -Wall  -march=native -O3 -g")
+elseif (CMAKE_BUILD_TYPE STREQUAL "Debug")
+   set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wall -march=native -O0 -g")
+   add_definitions(-DCLIB_DEBUG -fPIC -fstack-protector-all)
+endif()
+
+file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/hicn)
+file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/vapi)
+file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/vnet/ip)
+
+# These files are missing from vpp binary distribution
+execute_process(
+    COMMAND
+    bash -c
+    "if [ ! -e ${CMAKE_CURRENT_BINARY_DIR}/vapi_json_parser.py ]; then
+        curl https://raw.githubusercontent.com/FDio/vpp/stable/1908/src/vpp-api/vapi/vapi_json_parser.py -o ${CMAKE_CURRENT_BINARY_DIR}/vapi_json_parser.py;
+    fi;
+    if [ ! -e ${CMAKE_CURRENT_BINARY_DIR}/vapi_c_gen.py ]; then
+        curl https://raw.githubusercontent.com/FDio/vpp/stable/1908/src/vpp-api/vapi/vapi_c_gen.py -o ${CMAKE_CURRENT_BINARY_DIR}/vapi_c_gen.py;
+    fi;
+    if [ ! -e ${CMAKE_CURRENT_BINARY_DIR}/vapi_cpp_gen.py ]; then
+        curl https://raw.githubusercontent.com/FDio/vpp/stable/1908/src/vpp-api/vapi/vapi_cpp_gen.py -o ${CMAKE_CURRENT_BINARY_DIR}/vapi_cpp_gen.py;
+    fi;
+    if [ ! -e ${CMAKE_CURRENT_BINARY_DIR}/vnet/ip/ip_types.api ]; then
+        curl https://raw.githubusercontent.com/FDio/vpp/stable/1908/src/vnet/ip/ip_types.api -o ${CMAKE_CURRENT_BINARY_DIR}/vnet/ip/ip_types.api;
+    fi;
+    chmod +x ${CMAKE_CURRENT_BINARY_DIR}/vapi_json_parser.py ${CMAKE_CURRENT_BINARY_DIR}/vapi_c_gen.py ${CMAKE_CURRENT_BINARY_DIR}/vapi_cpp_gen.py"
+)
+
+add_custom_command(
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins/hicn/hicn.api.h ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
+    COMMAND ${VPP_HOME}/bin/vppapigen ARGS --includedir ${CMAKE_CURRENT_BINARY_DIR} --input ${CMAKE_CURRENT_SOURCE_DIR}/hicn.api --output ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins/hicn/hicn.api.h
+    COMMAND ${VPP_HOME}/bin/vppapigen ARGS JSON --includedir ${CMAKE_CURRENT_BINARY_DIR} --input ${CMAKE_CURRENT_SOURCE_DIR}/hicn.api --output ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
+)
+add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.vapi.h ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.vapi.hpp
+    COMMAND ${CMAKE_CURRENT_BINARY_DIR}/vapi_c_gen.py ARGS ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
+    COMMAND ${CMAKE_CURRENT_BINARY_DIR}/vapi_cpp_gen.py ARGS ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
+    DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/vapi/hicn.api.json
+)
+
+include_directories(SYSTEM)
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHICN_VPP_PLUGIN=1")
+add_library(hicn_plugin SHARED
+    ${LIBHICN_FILES}
+    ${HICN_PLUGIN_SOURCE_FILES}
+    ${HICN_API_GENERATED_FILES}
+    ${HICN_VAPI_GENERATED_FILES})
+
+file(COPY ${HICN_API_HEADER_FILES} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins/hicn)
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins)
+
+file(COPY ${LIBHICN_HEADER_FILES_SRC} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/hicn)
+file(COPY ${LIBHICN_HEADER_FILES_PROTOCOL} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/hicn/protocol)
+file(COPY ${LIBHICN_HEADER_FILES_UTIL} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/hicn/util)
+
+add_library(hicn_api_test_plugin SHARED
+	${HICN_API_TEST_SOURCE_FILES}
+        ${HICN_API_GENERATED_FILES})
+
+set(VPP_INSTALL_PLUGIN ${HICN_INSTALL_PREFIX}/vpp_plugins)
+set(VPP_INSTALL_API_TEST_PLUGIN ${HICN_INSTALL_PREFIX}/vpp_api_test_plugins CACHE STRING "vpp_install_api_test_plugin")
+set(VPP_STARTUP_CONF /etc/vpp/)
+
+set_target_properties(hicn_plugin
+        PROPERTIES
+        LINKER_LANGUAGE C
+        INSTALL_RPATH ${VPP_INSTALL_PLUGIN}
+        PREFIX "")
+set_target_properties(hicn_api_test_plugin
+        PROPERTIES
+        LINKER_LANGUAGE C
+        PREFIX "")
+
+install(DIRECTORY
+        DESTINATION ${VPP_INSTALL_PLUGIN}
+        COMPONENT ${HICN_PLUGIN})
+install(TARGETS hicn_plugin
+        DESTINATION
+        ${VPP_INSTALL_PLUGIN}
+        COMPONENT ${HICN_PLUGIN})
+
+install(DIRECTORY
+        DESTINATION ${VPP_INSTALL_API_TEST_PLUGIN}
+        COMPONENT ${HICN_PLUGIN})
+install(TARGETS hicn_api_test_plugin
+        DESTINATION ${VPP_INSTALL_API_TEST_PLUGIN}
+        COMPONENT ${HICN_PLUGIN})
+
+install(FILES ${HICN_API_HEADER_FILES} ${HICN_API_GENERATED_FILES}
+        DESTINATION ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}/vpp_plugins/hicn
+        COMPONENT ${HICN_PLUGIN}-dev)
+
+install(FILES ${HICN_API_GENERATED_FILES}
+        DESTINATION ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}/vpp_plugins/hicn
+        COMPONENT ${HICN_PLUGIN}-dev)
+
+install(FILES ${HICN_VAPI_GENERATED_FILES}
+        DESTINATION ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}/vapi
+        COMPONENT ${HICN_PLUGIN}-dev)
+
+#Set variables for other project depending on hicn-plugin
+set(HICNPLUGIN_INCLUDE_DIRS
+    ${CMAKE_CURRENT_BINARY_DIR}
+    ${CMAKE_CURRENT_BINARY_DIR}/vpp_plugins
+    CACHE INTERNAL "" FORCE)
+set(HICNPLUGIN_LIBRARIES ${VPP_LIBRARIES} CACHE INTERNAL "" FORCE)
\ No newline at end of file
diff --git a/hicn-plugin/vapi/CMakeLists.txt b/hicn-plugin/vapi/CMakeLists.txt
new file mode 100644
index 000000000..00bcaf49f
--- /dev/null
+++ b/hicn-plugin/vapi/CMakeLists.txt
@@ -0,0 +1,70 @@
+# Copyright (c) 2019 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
+
+set(SAFE_VAPI safe_vapi CACHE INTERNAL "" FORCE)
+set(SAFE_VAPI_SHARED ${SAFE_VAPI}.shared CACHE INTERNAL "" FORCE)
+set(SAFE_VAPI_STATIC ${SAFE_VAPI}.static CACHE INTERNAL "" FORCE)
+
+project(${SAFE_VAPI})
+
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
+    "${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/Modules/"
+    "${CMAKE_CURRENT_SOURCE_DIR}/../cmake/Modules/"
+)
+
+include (Packaging)
+include (BuildMacros)
+
+# Dependencies
+
+find_package(Vpp REQUIRED)
+
+list(APPEND HEADER_FILES
+     ${CMAKE_CURRENT_SOURCE_DIR}/include/vapi/vapi_safe.h
+)
+
+list(APPEND SOURCE_FILES
+     ${CMAKE_CURRENT_SOURCE_DIR}/vapi_safe.c
+)
+
+set (LIBRARIES
+    ${VPP_LIBRARIES})
+
+list (APPEND INCLUDE_DIRS
+     ${VPP_INCLUDE_DIR}
+     ${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+build_library(${SAFE_VAPI}
+    SHARED STATIC
+    SOURCES ${SOURCE_FILES} ${HEADER_FILES}
+    INSTALL_HEADERS ${HEADER_FILES}
+    LINK_LIBRARIES ${LIBRARIES}
+    COMPONENT ${HICN_PLUGIN}
+    INCLUDE_DIRS ${INCLUDE_DIRS}
+    INSTALL_ROOT_DIR /
+    DEFINITIONS ${COMPILER_DEFINITIONS}
+  )
+
+set(SAFE_VAPI_INCLUDE_DIRS
+  ${CMAKE_CURRENT_SOURCE_DIR}/include
+  "" CACHE INTERNAL
+  "" FORCE
+)
+
+set(SAFE_VAPI_LIBRARIES
+  ${SAFE_VAPI_SHARED}
+  "" CACHE INTERNAL
+  "" FORCE
+)
+
diff --git a/hicn-plugin/vapi/include/vapi/vapi_safe.h b/hicn-plugin/vapi/include/vapi/vapi_safe.h
new file mode 100644
index 000000000..df1114cde
--- /dev/null
+++ b/hicn-plugin/vapi/include/vapi/vapi_safe.h
@@ -0,0 +1,19 @@
+#ifndef VAPI_SAFE
+#include <vapi/vapi.h>
+#include <pthread.h>
+
+extern pthread_mutex_t *mutex;
+
+vapi_error_e vapi_connect_safe(vapi_ctx_t * vapi_ctx_ret, int async);
+
+vapi_error_e vapi_disconnect_safe();
+void vapi_lock();
+
+void vapi_unlock();
+
+#define VAPI_SAFE (NAME, res, ...)		\
+    vapi_lock();                                \
+    res = ## NAME (__ARGS__);			\
+    vapi_unlock();
+
+#endif //VAPI_SAFE
diff --git a/hicn-plugin/vapi/vapi_safe.c b/hicn-plugin/vapi/vapi_safe.c
new file mode 100644
index 000000000..c1d66c0ac
--- /dev/null
+++ b/hicn-plugin/vapi/vapi_safe.c
@@ -0,0 +1,75 @@
+#include <vapi/vapi_safe.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define APP_NAME "hicn_plugin"
+#define MAX_OUTSTANDING_REQUESTS 4
+#define RESPONSE_QUEUE_SIZE 2
+
+pthread_mutex_t *mutex = NULL;
+vapi_ctx_t g_vapi_ctx_instance = NULL;
+u32 count = 0;
+int lock = 0;
+
+vapi_error_e vapi_connect_safe(vapi_ctx_t *vapi_ctx_ret, int async) {
+  vapi_error_e rv  = VAPI_OK;
+
+  while (!__sync_bool_compare_and_swap(&lock, 0, 1));
+
+  if (!g_vapi_ctx_instance && !mutex)
+    {
+      rv = vapi_ctx_alloc(&g_vapi_ctx_instance);
+      if (rv != VAPI_OK)
+	goto err;
+
+      mutex = malloc(sizeof(pthread_mutex_t));
+      if (!mutex)
+	goto err_mutex_alloc;
+
+      if (pthread_mutex_init(mutex, NULL) != 0) {
+	printf("Mutex init failed\n");
+	goto err_mutex_init;
+      }
+    }
+
+  if (!count)
+    {
+      rv = vapi_connect(g_vapi_ctx_instance, APP_NAME, NULL,
+			MAX_OUTSTANDING_REQUESTS, RESPONSE_QUEUE_SIZE,
+			async ? VAPI_MODE_NONBLOCKING : VAPI_MODE_BLOCKING, true);
+
+      if (rv != VAPI_OK)
+	goto err_vapi;
+
+      count++;
+    }
+
+  *vapi_ctx_ret = g_vapi_ctx_instance;
+
+  while (!__sync_bool_compare_and_swap(&lock, 1, 0));
+  return rv;
+
+ err_vapi:
+  vapi_ctx_free(g_vapi_ctx_instance);
+ err_mutex_init:
+  free(mutex);
+ err_mutex_alloc:
+ err:
+  while (!__sync_bool_compare_and_swap(&lock, 1, 0));
+  return VAPI_ENOMEM;
+}
+
+vapi_error_e vapi_disconnect_safe() {
+  pthread_mutex_lock(mutex);
+  vapi_error_e rv = VAPI_OK;
+  pthread_mutex_unlock(mutex);
+  return rv;
+}
+
+void vapi_lock() {
+  pthread_mutex_lock(mutex);
+}
+
+void vapi_unlock() {
+  pthread_mutex_unlock(mutex);
+}