feat: boostrap hicn 22.02

The current patch provides several new features, improvements,
bug fixes and also complete rewrite of entire components.

- lib
The hicn packet parser has been improved with a new packet
format fully based on UDP. The TCP header is still temporarily
supported but the UDP header will replace completely the new hicn
packet format. Improvements have been made to make sure every
packet parsing operation is made via this library. The current
new header can be used as header between the payload and the
UDP header or as trailer in the UDP surplus area to be tested
when UDP options will start to be used.

- hicn-light
The portable packet forwarder has been completely rewritten from
scratch with the twofold objective to improve performance and
code size but  also to drop dependencies such as libparc which is
now removed by the current implementation.

- hicn control
the control library is the agent that is used to program the
packet forwarders via their binary API. This component has
benefited from significant improvements in terms of interaction
model which is now event driven and more robust to failures.

- VPP plugin has been updated to support VPP 22.02

- transport
Major improvement have been made to the RTC protocol, to the
support of IO modules and to the security sub system. Signed
manifests are the default data authenticity and integrity framework.
Confidentiality can be enabled by sharing the encryption key to the
prod/cons layer. The library has been tested with group key based
applications such as broadcast/multicast and real-time on-line
meetings with trusted server keys or MLS.

- testing
Unit testing has been introduced using GoogleTest. One third of
the code base is covered by unit testing with priority on
critical features. Functional testing has also been introduce
using Docker, linux bridging and Robot Framework to define
test with Less Code techniques to facilitate the extension
of the coverage.

Co-authored-by: Mauro Sardara <msardara@cisco.com>
Co-authored-by: Jordan Augé <jordan.auge+fdio@cisco.com>
Co-authored-by: Michele Papalini <micpapal@cisco.com>
Co-authored-by: Angelo Mantellini <manangel@cisco.com>
Co-authored-by: Jacques Samain <jsamain@cisco.com>
Co-authored-by: Olivier Roques <oroques+fdio@cisco.com>
Co-authored-by: Enrico Loparco <eloparco@cisco.com>
Co-authored-by: Giulio Grassi <gigrassi@cisco.com>

Change-Id: I75d0ef70f86d921e3ef503c99271216ff583c215
Signed-off-by: Luca Muscariello <muscariello@ieee.org>
Signed-off-by: Mauro Sardara <msardara@cisco.com>

27 files changed, 3398 insertions, 1048 deletions

diff --git a/lib/src/CMakeLists.txt b/lib/src/CMakeLists.txt
index 2588bde8b..ef74127cc 100644
--- a/lib/src/CMakeLists.txt
+++ b/lib/src/CMakeLists.txt
@@ -1,4 +1,4 @@
-# Copyright (c) 2017-2019 Cisco and/or its affiliates.
+# Copyright (c) 2021-2022 Cisco and/or its affiliates.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at:
@@ -11,53 +11,117 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+##############################################################
+# Source and Header files
+##############################################################
 list(APPEND LIBHICN_SOURCE_FILES
-  ${CMAKE_CURRENT_SOURCE_DIR}/common.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/compat.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/error.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/mapme.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/name.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/ops.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/policy.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/protocol/ah.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/protocol/icmp.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/protocol/ipv4.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/protocol/ipv6.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/protocol/tcp.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/util/ip_address.c
-  ${CMAKE_CURRENT_SOURCE_DIR}/util/log.c
+  common.c
+  compat.c
+  error.c
+  face.c
+  mapme.c
+  name.c
+  ops.c
+  policy.c
+  strategy.c
+  protocol/ah.c
+  protocol/icmp.c
+  protocol/ipv4.c
+  protocol/ipv6.c
+  protocol/tcp.c
+  protocol/udp.c
+  protocol/new.c
+  util/ip_address.c
+  util/log.c
 )
 
 if (WIN32)
   list(APPEND LIBHICN_SOURCE_FILES
-    ${CMAKE_CURRENT_SOURCE_DIR}/util/windows/dlfcn.c
+    util/windows/dlfcn.c
   )
 endif ()
-set (COMPILER_DEFINITIONS "-DWITH_MAPME")
+
+##############################################################
+# Compiler definitions
+##############################################################
+set (COMPILER_DEFINITIONS
+  PUBLIC "-DWITH_MAPME"
+  PUBLIC "-DWITH_POLICY"
+)
 
 include(BuildMacros)
 include(WindowsMacros)
 
-if (DISABLE_SHARED_LIBRARIES)
-  build_library(${LIBHICN}
-    STATIC
-    SOURCES ${LIBHICN_SOURCE_FILES} ${LIBHICN_HEADER_FILES} ${LIBHICN_HEADER_FILES_PROTOCOL} ${LIBHICN_HEADER_FILES_UTIL}
-    COMPONENT lib${LIBHICN}
-    INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/../includes
-    DEFINITIONS ${COMPILER_DEFINITIONS}
-    HEADER_ROOT_DIR hicn
-    INSTALL_HEADERS ${LIBHICN_HEADER_FILES} ${LIBHICN_HEADER_FILES_PROTOCOL} ${LIBHICN_HEADER_FILES_UTIL}
-    LINK_LIBRARIES ${WSOCK32_LIBRARY} ${WS2_32_LIBRARY}
+##############################################################
+# Build type
+##############################################################
+set (BUILD_TYPES "STATIC")
+
+if (NOT DISABLE_SHARED_LIBRARIES)
+  list(APPEND BUILD_TYPES
+    "SHARED"
   )
-else ()
-  build_library(${LIBHICN}
-    SHARED STATIC
-    SOURCES ${LIBHICN_SOURCE_FILES} ${LIBHICN_HEADER_FILES} ${LIBHICN_HEADER_FILES_PROTOCOL} ${LIBHICN_HEADER_FILES_UTIL}
-    COMPONENT lib${LIBHICN}
-    INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/../includes
-    DEFINITIONS ${COMPILER_DEFINITIONS}
-    HEADER_ROOT_DIR hicn
-    INSTALL_HEADERS ${LIBHICN_HEADER_FILES} ${LIBHICN_HEADER_FILES_PROTOCOL} ${LIBHICN_HEADER_FILES_UTIL}
-    LINK_LIBRARIES ${WSOCK32_LIBRARY} ${WS2_32_LIBRARY}
+endif()
+
+
+##############################################################
+# Compiler Options
+##############################################################
+set(COMPILER_OPTIONS
+  ${DEFAULT_COMPILER_OPTIONS}
+)
+
+
+##############################################################
+# Link libraries
+##############################################################
+if (WIN32)
+  list(APPEND LIBRARIES
+    PRIVATE ${WSOCK32_LIBRARY}
+    PRIVATE ${WS2_32_LIBRARY}
   )
 endif ()
+
+
+##############################################################
+# Build library
+##############################################################
+build_library(${LIBHICN}
+  ${BUILD_TYPES}
+  SOURCES ${LIBHICN_SOURCE_FILES}
+  COMPONENT ${LIBHICN_COMPONENT}
+  INCLUDE_DIRS
+    PUBLIC
+      $<BUILD_INTERFACE:${Libhicn_INCLUDE_DIRS}>
+      $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+      $<BUILD_INTERFACE:${THIRD_PARTY_INCLUDE_DIRS}>
+  DEFINITIONS ${COMPILER_DEFINITIONS}
+  INSTALL_HEADERS ${LIBHICN_HEADER_FILES} ${LIBHICN_HEADER_FILES_PROTOCOL} ${LIBHICN_HEADER_FILES_UTIL}
+  DEPENDS ${THIRD_PARTY_DEPENDENCIES}
+  LINK_LIBRARIES
+    PRIVATE ${WSOCK32_LIBRARY}
+    PRIVATE ${WS2_32_LIBRARY}
+    PUBLIC ${THIRD_PARTY_LIBRARIES}
+  VERSION ${CURRENT_VERSION}
+  EXPORT_NAME ${LIBHICN_COMPONENT}
+  COMPILE_OPTIONS ${COMPILER_OPTIONS}
+)
+
+##############################################################
+# Unit tests
+##############################################################
+if (${BUILD_TESTS})
+  add_subdirectory(test)
+endif()
+
+
+##############################################################
+# Cmake config files
+##############################################################
+create_cmake_config (
+  ${LIBHICN_COMPONENT}
+  INCLUDE_DIRS ${HICN_INCLUDE_DIRS}
+  VERSION ${CURRENT_VERSION}
+  COMPONENT ${LIBHICN_COMPONENT}
+  NAMESPACE hicn
+)
diff --git a/lib/src/common.c b/lib/src/common.c
index 562771e09..c4cb8bc3e 100644
--- a/lib/src/common.c
+++ b/lib/src/common.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -20,8 +20,8 @@
  */
 
 #include <stdlib.h>
-#include <string.h>		// memset
-#include <sys/types.h>		// getaddrinfo
+#include <string.h>    // memset
+#include <sys/types.h> // getaddrinfo
 #ifndef _WIN32
 #include <sys/socket.h>
 #include <netdb.h>
@@ -31,8 +31,6 @@
 #include <hicn/common.h>
 #include <hicn/util/log.h>
 
-
-
 int
 get_addr_family (const char *ip_address)
 {
@@ -59,7 +57,8 @@ get_addr_family (const char *ip_address)
 u32
 cumulative_hash32 (const void *data, size_t len, u32 lastValue)
 {
-  // Standard FNV 32-bit prime: see http://www.isthe.com/chongo/tech/comp/fnv/#FNV-param
+  // Standard FNV 32-bit prime: see
+  // http://www.isthe.com/chongo/tech/comp/fnv/#FNV-param
   const u32 fnv1a_prime = 0x01000193;
   u32 hash = lastValue;
   size_t i;
@@ -78,7 +77,8 @@ cumulative_hash32 (const void *data, size_t len, u32 lastValue)
 u32
 hash32 (const void *data, size_t len)
 {
-  // Standard FNV 32-bit offset: see http://www.isthe.com/chongo/tech/comp/fnv/#FNV-param
+  // Standard FNV 32-bit offset: see
+  // http://www.isthe.com/chongo/tech/comp/fnv/#FNV-param
   const u32 fnv1a_offset = 0x811C9DC5;
   return cumulative_hash32 (data, len, fnv1a_offset);
 }
@@ -86,7 +86,8 @@ hash32 (const void *data, size_t len)
 u64
 cumulative_hash64 (const void *data, size_t len, u64 lastValue)
 {
-  // Standard FNV 64-bit prime: see http://www.isthe.com/chongo/tech/comp/fnv/#FNV-param
+  // Standard FNV 64-bit prime: see
+  // http://www.isthe.com/chongo/tech/comp/fnv/#FNV-param
   const u64 fnv1a_prime = 0x00000100000001B3ULL;
   u64 hash = lastValue;
   const char *chardata = data;
@@ -104,13 +105,14 @@ cumulative_hash64 (const void *data, size_t len, u64 lastValue)
 u64
 hash64 (const void *data, size_t len)
 {
-  // Standard FNV 64-bit offset: see http://www.isthe.com/chongo/tech/comp/fnv/#FNV-param
+  // Standard FNV 64-bit offset: see
+  // http://www.isthe.com/chongo/tech/comp/fnv/#FNV-param
   const u64 fnv1a_offset = 0xCBF29CE484222325ULL;
   return cumulative_hash64 (data, len, fnv1a_offset);
 }
 
 void
-hicn_packet_dump (const uint8_t * buffer, size_t len)
+hicn_packet_dump (const uint8_t *buffer, size_t len)
 {
   int i;
   unsigned char buff[17];
diff --git a/lib/src/compat.c b/lib/src/compat.c
index 932c11d9e..cb771dbdd 100644
--- a/lib/src/compat.c
+++ b/lib/src/compat.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -51,6 +51,12 @@ hicn_packet_get_format (const hicn_header_t *h, hicn_format_t *format)
 	  else
 	    *format = HF_INET_TCP;
 	  break;
+	case IPPROTO_UDP:
+	  if (h->v4.newhdr.flags & HICN_NEW_FLAG_SIG)
+	    *format = HF_INET_UDP_AH;
+	  else
+	    *format = HF_INET_UDP;
+	  break;
 	case IPPROTO_ICMP:
 	  *format = HF_INET_ICMP;
 	  break;
@@ -67,6 +73,12 @@ hicn_packet_get_format (const hicn_header_t *h, hicn_format_t *format)
 	  else
 	    *format = HF_INET6_TCP;
 	  break;
+	case IPPROTO_UDP:
+	  if (h->v6.newhdr.flags & HICN_NEW_FLAG_SIG)
+	    *format = HF_INET6_UDP_AH;
+	  else
+	    *format = HF_INET6_UDP;
+	  break;
 	case IPPROTO_ICMPV6:
 	  *format = HF_INET6_ICMP;
 	  break;
@@ -74,6 +86,12 @@ hicn_packet_get_format (const hicn_header_t *h, hicn_format_t *format)
 	  return HICN_LIB_ERROR_NOT_HICN;
 	}
       break;
+    case 9:
+      {
+	uint8_t ah = (HICN_NEW_FLAG_SIG & h->protocol.newhdr.flags);
+	*format = HF_NEW_AH * ah + (1 - ah) * HF_NEW;
+	break;
+      }
     default:
       return HICN_LIB_ERROR_NOT_HICN;
     }
@@ -93,20 +111,32 @@ hicn_format_to_type (hicn_format_t format)
     {
     case HF_INET_TCP:
       return HICN_TYPE_IPV4_TCP;
+    case HF_INET_UDP:
+      return HICN_TYPE_IPV4_UDP;
     case HF_INET6_TCP:
       return HICN_TYPE_IPV6_TCP;
+    case HF_INET6_UDP:
+      return HICN_TYPE_IPV6_UDP;
     case HF_INET_ICMP:
       return HICN_TYPE_IPV4_ICMP;
     case HF_INET6_ICMP:
       return HICN_TYPE_IPV6_ICMP;
+    case HF_NEW:
+      return HICN_TYPE_NEW;
     case HF_INET_TCP_AH:
       return HICN_TYPE_IPV4_TCP_AH;
+    case HF_INET_UDP_AH:
+      return HICN_TYPE_IPV4_UDP_AH;
     case HF_INET6_TCP_AH:
       return HICN_TYPE_IPV6_TCP_AH;
+    case HF_INET6_UDP_AH:
+      return HICN_TYPE_IPV6_UDP_AH;
     case HF_INET_ICMP_AH:
       return HICN_TYPE_IPV4_ICMP_AH;
     case HF_INET6_ICMP_AH:
       return HICN_TYPE_IPV6_ICMP_AH;
+    case HF_NEW_AH:
+      return HICN_TYPE_NEW_AH;
     default:
       break;
     }
@@ -176,6 +206,8 @@ hicn_packet_get_header_length_from_format (hicn_format_t format,
   *header_length += _is_ipv6 (format) * IPV6_HDRLEN;
   *header_length += _is_icmp (format) * ICMP_HDRLEN;
   *header_length += _is_tcp (format) * TCP_HDRLEN;
+  *header_length += _is_udp (format) * UDP_HDRLEN;
+  *header_length += _is_cmpr (format) * NEW_HDRLEN;
   *header_length += _is_ah (format) * AH_HDRLEN;
 
   return HICN_LIB_ERROR_NONE;
@@ -185,17 +217,9 @@ int
 hicn_packet_get_header_length (hicn_format_t format, const hicn_header_t *h,
 			       size_t *header_length)
 {
-  hicn_packet_get_header_length_from_format (format, header_length);
-  int is_ah = _is_ah (format);
-  int is_ipv4 = _is_ipv4 (format);
-  int is_ipv6 = _is_ipv6 (format);
-  // The signature payload is expressed as number of 32 bits words
-  if (is_ah && is_ipv4)
-    *header_length += (h->v4ah.ah.payloadlen) << 2;
-  else if (is_ah && is_ipv6)
-    *header_length += (h->v6ah.ah.payloadlen) << 2;
-
-  return HICN_LIB_ERROR_NONE;
+  hicn_type_t type = hicn_format_to_type (format);
+  return hicn_ops_vft[type.l1]->get_header_length (type, &h->protocol,
+						   header_length);
 }
 
 int
@@ -261,11 +285,6 @@ hicn_packet_set_name (hicn_format_t format, hicn_header_t *h,
 {
   hicn_type_t type = hicn_format_to_type (format);
 
-#ifndef HICN_VPP_PLUGIN
-  if (name->type & HNT_IOV)
-    return HICN_LIB_ERROR_NOT_IMPLEMENTED;
-#endif /* HICN_VPP_PLUGIN */
-
   if (is_interest)
     return hicn_ops_vft[type.l1]->set_interest_name (type, &h->protocol, name);
   else
@@ -325,54 +344,26 @@ int
 hicn_packet_get_locator (hicn_format_t format, const hicn_header_t *h,
 			 ip_address_t *address, bool is_interest)
 {
-  int is_ipv4 = (format & HFO_INET);
-  int is_ipv6 = (format & HFO_INET6) >> 1;
-
-  if (is_ipv4)
-    {
-      address->v4.as_inaddr =
-	is_interest ? h->v4.ip.saddr.as_inaddr : h->v4.ip.daddr.as_inaddr;
-    }
-  else if (is_ipv6)
-    {
-      address->v6.as_in6addr =
-	is_interest ? h->v6.ip.saddr.as_in6addr : h->v6.ip.daddr.as_in6addr;
-    }
+  hicn_type_t type = hicn_format_to_type (format);
+  if (is_interest)
+    return hicn_ops_vft[type.l1]->get_interest_locator (type, &h->protocol,
+							address);
   else
-    {
-      return HICN_LIB_ERROR_NOT_IMPLEMENTED;
-    }
-
-  return HICN_LIB_ERROR_NONE;
+    return hicn_ops_vft[type.l1]->get_data_locator (type, &h->protocol,
+						    address);
 }
 
 int
 hicn_packet_set_locator (hicn_format_t format, hicn_header_t *h,
 			 const ip_address_t *address, bool is_interest)
 {
-  int is_ipv4 = (format & HFO_INET);
-  int is_ipv6 = (format & HFO_INET6) >> 1;
-
-  if (is_ipv6)
-    {
-      if (is_interest)
-	h->v6.ip.saddr.as_in6addr = address->v6.as_in6addr;
-      else
-	h->v6.ip.daddr.as_in6addr = address->v6.as_in6addr;
-    }
-  else if (is_ipv4)
-    {
-      if (is_interest)
-	h->v4.ip.saddr.as_inaddr = address->v4.as_inaddr;
-      else
-	h->v4.ip.daddr.as_inaddr = address->v4.as_inaddr;
-    }
+  hicn_type_t type = hicn_format_to_type (format);
+  if (is_interest)
+    return hicn_ops_vft[type.l1]->set_interest_locator (type, &h->protocol,
+							address);
   else
-    {
-      return HICN_LIB_ERROR_INVALID_PARAMETER;
-    }
-
-  return HICN_LIB_ERROR_NONE;
+    return hicn_ops_vft[type.l1]->set_data_locator (type, &h->protocol,
+						    address);
 }
 
 int
@@ -392,19 +383,21 @@ hicn_packet_set_signature_size (hicn_format_t format, hicn_header_t *h,
 }
 
 int
-hicn_packet_get_signature_gap (hicn_format_t format, const hicn_header_t *h,
-			       uint8_t *bytes)
+hicn_packet_get_signature_padding (hicn_format_t format,
+				   const hicn_header_t *h, size_t *bytes)
 {
   hicn_type_t type = hicn_format_to_type (format);
-  return hicn_ops_vft[type.l1]->get_signature_gap (type, &h->protocol, bytes);
+  return hicn_ops_vft[type.l1]->get_signature_padding (type, &h->protocol,
+						       bytes);
 }
 
 int
-hicn_packet_set_signature_gap (hicn_format_t format, hicn_header_t *h,
-			       uint8_t bytes)
+hicn_packet_set_signature_padding (hicn_format_t format, hicn_header_t *h,
+				   size_t bytes)
 {
   hicn_type_t type = hicn_format_to_type (format);
-  return hicn_ops_vft[type.l1]->set_signature_gap (type, &h->protocol, bytes);
+  return hicn_ops_vft[type.l1]->set_signature_padding (type, &h->protocol,
+						       bytes);
 }
 
 int
@@ -499,7 +492,30 @@ hicn_packet_set_hoplimit (hicn_header_t *h, u8 hops)
 }
 
 int
-hicn_packet_get_lifetime (const hicn_header_t *h, u32 *lifetime)
+hicn_packet_is_interest (hicn_format_t format, const hicn_header_t *h,
+			 int *ret)
+{
+  hicn_type_t type = hicn_format_to_type (format);
+  return hicn_ops_vft[type.l1]->is_interest (type, &h->protocol, ret);
+}
+
+int
+hicn_packet_set_interest (hicn_format_t format, hicn_header_t *h)
+{
+  hicn_type_t type = hicn_format_to_type (format);
+  return hicn_ops_vft[type.l1]->mark_packet_as_interest (type, &h->protocol);
+}
+
+int
+hicn_packet_set_data (hicn_format_t format, hicn_header_t *h)
+{
+  hicn_type_t type = hicn_format_to_type (format);
+  return hicn_ops_vft[type.l1]->mark_packet_as_data (type, &h->protocol);
+}
+
+int
+hicn_packet_get_lifetime (hicn_format_t format, const hicn_header_t *h,
+			  u32 *lifetime)
 {
   hicn_type_t type = hicn_header_to_type (h);
   return hicn_ops_vft[type.l1]->get_lifetime (type, &h->protocol,
@@ -507,7 +523,7 @@ hicn_packet_get_lifetime (const hicn_header_t *h, u32 *lifetime)
 }
 
 int
-hicn_packet_set_lifetime (hicn_header_t *h, u32 lifetime)
+hicn_packet_set_lifetime (hicn_format_t format, hicn_header_t *h, u32 lifetime)
 {
   hicn_type_t type = hicn_header_to_type (h);
   return hicn_ops_vft[type.l1]->set_lifetime (type, &h->protocol,
@@ -551,59 +567,21 @@ hicn_packet_set_reserved_bits (hicn_header_t *h, const u8 reserved_bits)
 }
 
 int
-hicn_packet_get_payload_type (const hicn_header_t *h,
+hicn_packet_get_payload_type (hicn_format_t format, const hicn_header_t *h,
 			      hicn_payload_type_t *payload_type)
 {
-  switch (HICN_IP_VERSION (h))
-    {
-    case 6:
-      *payload_type =
-	((h->v6.tcp.flags & HICN_TCP_FLAG_URG) == HICN_TCP_FLAG_URG);
-      break;
-    case 4:
-      *payload_type =
-	((h->v4.tcp.flags & HICN_TCP_FLAG_URG) == HICN_TCP_FLAG_URG);
-      break;
-    default:
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
-
-  if (*payload_type == HPT_UNSPEC)
-    {
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
-
-  return HICN_LIB_ERROR_NONE;
+  hicn_type_t type = hicn_header_to_type (h);
+  return hicn_ops_vft[type.l1]->get_payload_type (type, &h->protocol,
+						  payload_type);
 }
 
 int
-hicn_packet_set_payload_type (hicn_header_t *h,
+hicn_packet_set_payload_type (hicn_format_t format, hicn_header_t *h,
 			      hicn_payload_type_t payload_type)
 {
-  if (payload_type != HPT_DATA && payload_type != HPT_MANIFEST)
-    {
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
-
-  switch (HICN_IP_VERSION (h))
-    {
-    case 6:
-      if (payload_type)
-	h->v6.tcp.flags = h->v6.tcp.flags | HICN_TCP_FLAG_URG;
-      else
-	h->v6.tcp.flags = h->v6.tcp.flags & ~HICN_TCP_FLAG_URG;
-      break;
-    case 4:
-      if (payload_type)
-	h->v4.tcp.flags = h->v4.tcp.flags | HICN_TCP_FLAG_URG;
-      else
-	h->v4.tcp.flags = h->v4.tcp.flags & ~HICN_TCP_FLAG_URG;
-      break;
-    default:
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
-
-  return HICN_LIB_ERROR_NONE;
+  hicn_type_t type = hicn_header_to_type (h);
+  return hicn_ops_vft[type.l1]->set_payload_type (type, &h->protocol,
+						  payload_type);
 }
 
 int
@@ -1057,10 +1035,6 @@ int
 hicn_interest_set_name (hicn_format_t format, hicn_header_t *interest,
 			const hicn_name_t *name)
 {
-  int ret_err = hicn_packet_reset_ece (
-    format, interest); // interest packet -> ece flag unset
-  if (ret_err < 0)
-    return HICN_LIB_ERROR_UNEXPECTED;
   return hicn_packet_set_name (format, interest, name, _INTEREST);
 }
 
@@ -1088,13 +1062,25 @@ hicn_interest_compare (const hicn_header_t *interest_1,
 int
 hicn_interest_get_lifetime (const hicn_header_t *interest, u32 *lifetime)
 {
-  return hicn_packet_get_lifetime (interest, lifetime);
+  hicn_format_t format;
+  int rc = hicn_packet_get_format (interest, &format);
+
+  if (rc)
+    return rc;
+
+  return hicn_packet_get_lifetime (format, interest, lifetime);
 }
 
 int
 hicn_interest_set_lifetime (hicn_header_t *interest, u32 lifetime)
 {
-  return hicn_packet_set_lifetime (interest, lifetime);
+  hicn_format_t format;
+  int rc = hicn_packet_get_format (interest, &format);
+
+  if (rc)
+    return rc;
+
+  return hicn_packet_set_lifetime (format, interest, lifetime);
 }
 
 int
@@ -1150,10 +1136,6 @@ int
 hicn_data_set_name (hicn_format_t format, hicn_header_t *data,
 		    const hicn_name_t *name)
 {
-  int ret_err =
-    hicn_packet_set_ece (format, data); // data packet -> ece flag set
-  if (ret_err < 0)
-    return HICN_LIB_ERROR_UNEXPECTED;
   return hicn_packet_set_name (format, data, name, _DATA);
 }
 
@@ -1180,13 +1162,26 @@ hicn_data_compare (const hicn_header_t *data_1, const hicn_header_t *data_2)
 int
 hicn_data_get_expiry_time (const hicn_header_t *data, u32 *expiry_time)
 {
-  return hicn_packet_get_lifetime (data, expiry_time);
+  hicn_format_t format;
+  int rc = hicn_packet_get_format (data, &format);
+
+  if (rc)
+    return rc;
+
+  return hicn_packet_get_lifetime (format, data, expiry_time);
 }
 
 int
 hicn_data_set_expiry_time (hicn_header_t *data, u32 expiry_time)
 {
-  return hicn_packet_set_lifetime (data, (hicn_lifetime_t) expiry_time);
+  hicn_format_t format;
+  int rc = hicn_packet_get_format (data, &format);
+
+  if (rc)
+    return rc;
+
+  return hicn_packet_set_lifetime (format, data,
+				   (hicn_lifetime_t) expiry_time);
 }
 
 int
@@ -1204,20 +1199,6 @@ hicn_data_get_payload_length (hicn_format_t format, const hicn_header_t *data,
 }
 
 int
-hicn_data_set_payload_type (hicn_header_t *data,
-			    hicn_payload_type_t payload_type)
-{
-  return hicn_packet_set_payload_type (data, payload_type);
-}
-
-int
-hicn_data_get_payload_type (const hicn_header_t *data,
-			    hicn_payload_type_t *payload_type)
-{
-  return hicn_packet_get_payload_type (data, payload_type);
-}
-
-int
 hicn_data_get_path_label (const hicn_header_t *data, u32 *path_label)
 {
   hicn_type_t type = hicn_header_to_type (data);
@@ -1256,6 +1237,20 @@ hicn_data_reset_for_hash (hicn_format_t format, hicn_header_t *packet)
 }
 
 int
+hicn_data_is_last (hicn_format_t format, hicn_header_t *h, int *is_last)
+{
+  hicn_type_t type = hicn_format_to_type (format);
+  return hicn_ops_vft[type.l1]->is_last_data (type, &h->protocol, is_last);
+}
+
+int
+hicn_data_set_last (hicn_format_t format, hicn_header_t *h)
+{
+  hicn_type_t type = hicn_format_to_type (format);
+  return hicn_ops_vft[type.l1]->set_last_data (type, &h->protocol);
+}
+
+int
 hicn_packet_get_signature (hicn_format_t format, hicn_header_t *packet,
 			   uint8_t **sign_buf)
 {
diff --git a/lib/src/error.c b/lib/src/error.c
index ab5d6e27d..0d7c80d9b 100644
--- a/lib/src/error.c
+++ b/lib/src/error.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -21,7 +21,7 @@
 #include <hicn/error.h>
 
 const char *HICN_LIB_ERROR_STRING[] = {
-#define _(a,b,c) [b] = c,
+#define _(a, b, c) [b] = c,
   foreach_libhicn_error
 #undef _
 };
diff --git a/lib/src/face.c b/lib/src/face.c
new file mode 100644
index 000000000..46b36e8cd
--- /dev/null
+++ b/lib/src/face.c
@@ -0,0 +1,451 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file face.c
+ * \brief Implementation of face abstraction
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hicn/face.h>
+#include <hicn/util/token.h>
+
+#define member_size(type, member) sizeof (((type *) 0)->member)
+
+/* Netdevice */
+
+const char *_netdevice_type_str[] = {
+#define _(x) [NETDEVICE_TYPE_##x] = STRINGIZE (x),
+  foreach_netdevice_type
+#undef _
+};
+
+netdevice_t *
+netdevice_create_from_index (u32 index)
+{
+  netdevice_t *netdevice = malloc (sizeof (netdevice_t));
+  if (!netdevice)
+    goto ERR_MALLOC;
+
+  int rc = netdevice_set_index (netdevice, index);
+  if (rc < 0)
+    goto ERR_INIT;
+
+  return netdevice;
+
+ERR_INIT:
+  free (netdevice);
+ERR_MALLOC:
+  return NULL;
+}
+
+netdevice_t *
+netdevice_create_from_name (const char *name)
+{
+  netdevice_t *netdevice = malloc (sizeof (netdevice_t));
+  if (!netdevice)
+    goto ERR_MALLOC;
+
+  int rc = netdevice_set_name (netdevice, name);
+  if (rc < 0)
+    goto ERR_INIT;
+
+  return netdevice;
+
+ERR_INIT:
+  free (netdevice);
+ERR_MALLOC:
+  return NULL;
+}
+
+/**
+ * \brief Update the index of the netdevice based on the name
+ */
+int
+netdevice_update_index (netdevice_t *netdevice)
+{
+  netdevice->index = if_nametoindex (netdevice->name);
+  if (netdevice->index == 0)
+    return -1;
+  return 0;
+}
+
+int
+netdevice_update_name (netdevice_t *netdevice)
+{
+  if (!if_indextoname (netdevice->index, netdevice->name))
+    return -1;
+  return 0;
+}
+
+void
+netdevice_free (netdevice_t *netdevice)
+{
+  free (netdevice);
+}
+
+int
+netdevice_get_index (const netdevice_t *netdevice, u32 *index)
+{
+  if (netdevice->index == 0)
+    return -1;
+  *index = netdevice->index;
+  return 0;
+}
+
+int
+netdevice_set_index (netdevice_t *netdevice, u32 index)
+{
+  netdevice->index = index;
+  return netdevice_update_name (netdevice);
+}
+
+int
+netdevice_get_name (const netdevice_t *netdevice, const char **name)
+{
+  if (netdevice->name[0] == '\0')
+    return -1;
+  *name = netdevice->name;
+  return 0;
+}
+
+int
+netdevice_set_name (netdevice_t *netdevice, const char *name)
+{
+  memset (netdevice->name, 0, sizeof (netdevice->name));
+  int rc = snprintf (netdevice->name, IFNAMSIZ, "%s", name);
+  if (rc < 0)
+    return -1;
+  if (rc >= IFNAMSIZ)
+    return -2; /* truncated */
+  return netdevice_update_index (netdevice);
+}
+
+int
+netdevice_cmp (const netdevice_t *nd1, const netdevice_t *nd2)
+{
+  return (nd1->index - nd2->index);
+}
+
+/* Face state */
+
+const char *_face_state_str[] = {
+#define _(x) [FACE_STATE_##x] = STRINGIZE (x),
+  foreach_face_state
+#undef _
+};
+
+/* Face type */
+
+const char *_face_type_str[] = {
+#define _(x) [FACE_TYPE_##x] = STRINGIZE (x),
+  foreach_face_type
+#undef _
+};
+
+face_type_t
+face_type_from_str (const char *str)
+{
+#define _(x)                                                                  \
+  if (strcasecmp (str, STRINGIZE (x)) == 0)                                   \
+    return FACE_TYPE_##x;                                                     \
+  else
+  foreach_face_type
+#undef _
+    return FACE_TYPE_UNDEFINED;
+}
+
+/* Face */
+
+int
+face_initialize (face_t *face)
+{
+  memset (face, 0, sizeof (face_t)); /* 0'ed for hash */
+  return 1;
+}
+
+int
+face_initialize_udp (face_t *face, const char *interface_name,
+		     const ip_address_t *local_addr, u16 local_port,
+		     const ip_address_t *remote_addr, u16 remote_port,
+		     int family)
+{
+  if (!local_addr)
+    return -1;
+
+  *face = (face_t){
+    .type = FACE_TYPE_UDP,
+    .family = family,
+    .local_addr = *local_addr,
+    .local_port = local_port,
+    .remote_addr = remote_addr ? *remote_addr : IP_ADDRESS_EMPTY,
+    .remote_port = remote_port,
+  };
+
+  snprintf (face->netdevice.name, IFNAMSIZ, "%s", interface_name);
+
+  return 1;
+}
+
+int
+face_initialize_udp_sa (face_t *face, const char *interface_name,
+			const struct sockaddr *local_addr,
+			const struct sockaddr *remote_addr)
+{
+  if (!local_addr)
+    return -1;
+
+  if (remote_addr && (local_addr->sa_family != remote_addr->sa_family))
+    return -1;
+
+  switch (local_addr->sa_family)
+    {
+    case AF_INET:
+      {
+	struct sockaddr_in *lsai = (struct sockaddr_in *) local_addr;
+	struct sockaddr_in *rsai = (struct sockaddr_in *) remote_addr;
+	*face = (face_t){
+	  .type = FACE_TYPE_UDP,
+	  .family = AF_INET,
+	  .local_addr.v4.as_inaddr = lsai->sin_addr,
+	  .local_port = lsai ? ntohs (lsai->sin_port) : 0,
+	  .remote_addr = IP_ADDRESS_EMPTY,
+	  .remote_port = rsai ? ntohs (rsai->sin_port) : 0,
+	};
+	if (rsai)
+	  face->remote_addr.v4.as_inaddr = rsai->sin_addr;
+      }
+      break;
+    case AF_INET6:
+      {
+	struct sockaddr_in6 *lsai = (struct sockaddr_in6 *) local_addr;
+	struct sockaddr_in6 *rsai = (struct sockaddr_in6 *) remote_addr;
+	*face = (face_t){
+	  .type = FACE_TYPE_UDP,
+	  .family = AF_INET6,
+	  .local_addr.v6.as_in6addr = lsai->sin6_addr,
+	  .local_port = lsai ? ntohs (lsai->sin6_port) : 0,
+	  .remote_addr = IP_ADDRESS_EMPTY,
+	  .remote_port = rsai ? ntohs (rsai->sin6_port) : 0,
+	};
+	if (rsai)
+	  face->remote_addr.v6.as_in6addr = rsai->sin6_addr;
+      }
+      break;
+    default:
+      return -1;
+    }
+
+  snprintf (face->netdevice.name, IFNAMSIZ, "%s", interface_name);
+
+  return 1;
+}
+
+face_t *
+face_create ()
+{
+  face_t *face = calloc (1, sizeof (face_t)); /* 0'ed for hash */
+  return face;
+}
+
+face_t *
+face_create_udp (const char *interface_name, const ip_address_t *local_addr,
+		 u16 local_port, const ip_address_t *remote_addr,
+		 u16 remote_port, int family)
+{
+  face_t *face = face_create ();
+  if (face_initialize_udp (face, interface_name, local_addr, local_port,
+			   remote_addr, remote_port, family) < 0)
+    goto ERR_INIT;
+  return face;
+
+ERR_INIT:
+  free (face);
+  return NULL;
+}
+
+face_t *
+face_create_udp_sa (const char *interface_name,
+		    const struct sockaddr *local_addr,
+		    const struct sockaddr *remote_addr)
+{
+  face_t *face = face_create ();
+  if (face_initialize_udp_sa (face, interface_name, local_addr, remote_addr) <
+      0)
+    goto ERR_INIT;
+  return face;
+
+ERR_INIT:
+  free (face);
+  return NULL;
+}
+
+void
+face_free (face_t *face)
+{
+  free (face);
+}
+
+/**
+ * \brief Compare two faces
+ * \param [in] f1 - First face
+ * \param [in] f2 - Second face
+ * \return whether faces are equal, ie both their types are parameters are
+ * equal.
+ *
+ * NOTE: this function implements a partial order.
+ */
+int
+face_cmp (const face_t *f1, const face_t *f2)
+{
+
+  int ret = f1->type - f2->type;
+  if (ret != 0)
+    return ret;
+
+  ret = f1->family - f2->family;
+  if (ret != 0)
+    return ret;
+
+  /*
+   * FIXME As hicn-light API might not return the netdevice, we can discard the
+   * comparison when one of the two is not set for now...
+   */
+  if ((f1->netdevice.index != 0) && (f2->netdevice.index != 0))
+    {
+      ret = netdevice_cmp (&f1->netdevice, &f2->netdevice);
+      if (ret != 0)
+	return ret;
+    }
+
+  switch (f1->type)
+    {
+    case FACE_TYPE_HICN:
+      ret = ip_address_cmp (&f1->local_addr, &f2->local_addr, f1->family);
+      if (ret != 0)
+	return ret;
+
+      ret = ip_address_cmp (&f1->remote_addr, &f2->remote_addr, f1->family);
+      if (ret != 0)
+	return ret;
+
+      break;
+
+    case FACE_TYPE_TCP:
+    case FACE_TYPE_UDP:
+      ret = ip_address_cmp (&f1->local_addr, &f2->local_addr, f1->family);
+      if (ret != 0)
+	return ret;
+
+      ret = f1->local_port - f2->local_port;
+      if (ret != 0)
+	return ret;
+
+      ret = ip_address_cmp (&f1->remote_addr, &f2->remote_addr, f1->family);
+      if (ret != 0)
+	return ret;
+
+      ret = f1->remote_port - f2->remote_port;
+      if (ret != 0)
+	return ret;
+
+      break;
+    default:
+      break;
+    }
+
+  return 0;
+}
+
+/* /!\ Please update constants in header file upon changes */
+size_t
+face_snprintf (char *s, size_t size, const face_t *face)
+{
+  switch (face->type)
+    {
+    case FACE_TYPE_HICN:
+      {
+	char local[MAXSZ_IP_ADDRESS];
+	char remote[MAXSZ_IP_ADDRESS];
+	char tags[MAXSZ_POLICY_TAGS];
+
+	ip_address_snprintf (local, MAXSZ_IP_ADDRESS, &face->local_addr,
+			     face->family);
+	ip_address_snprintf (remote, MAXSZ_IP_ADDRESS, &face->remote_addr,
+			     face->family);
+	policy_tags_snprintf (tags, MAXSZ_POLICY_TAGS, face->tags);
+	return snprintf (s, size, "%s [%s -> %s] [%s]",
+			 face_type_str (face->type), local, remote, tags);
+      }
+    case FACE_TYPE_UNDEFINED:
+    case FACE_TYPE_TCP:
+    case FACE_TYPE_UDP:
+      {
+	char local[MAXSZ_IP_ADDRESS];
+	char remote[MAXSZ_IP_ADDRESS];
+	char tags[MAXSZ_POLICY_TAGS];
+
+	ip_address_snprintf (local, MAXSZ_IP_ADDRESS, &face->local_addr,
+			     face->family);
+	ip_address_snprintf (remote, MAXSZ_IP_ADDRESS, &face->remote_addr,
+			     face->family);
+	policy_tags_snprintf (tags, MAXSZ_POLICY_TAGS, face->tags);
+
+	return snprintf (s, size, "%s [%s:%d -> %s:%d] [%s]",
+			 face_type_str (face->type), local, face->local_port,
+			 remote, face->remote_port, tags);
+      }
+    default:
+      return -1;
+    }
+}
+
+policy_tags_t
+face_get_tags (const face_t *face)
+{
+  return face->tags;
+}
+
+int
+face_set_tags (face_t *face, policy_tags_t tags)
+{
+  face->tags = tags;
+  return 1;
+}
+
+face_protocol_t
+get_protocol (face_type_t face_type)
+{
+  switch (face_type)
+    {
+    case FACE_TYPE_HICN:
+    case FACE_TYPE_HICN_LISTENER:
+      return FACE_PROTOCOL_HICN;
+
+    case FACE_TYPE_TCP:
+    case FACE_TYPE_TCP_LISTENER:
+      return FACE_PROTOCOL_TCP;
+
+    case FACE_TYPE_UDP:
+    case FACE_TYPE_UDP_LISTENER:
+      return FACE_PROTOCOL_UDP;
+
+    default:
+      return FACE_PROTOCOL_UNKNOWN;
+    }
+}
diff --git a/lib/src/libhicn-config.cmake.in b/lib/src/libhicn-config.cmake.in
new file mode 100644
index 000000000..1ae219280
--- /dev/null
+++ b/lib/src/libhicn-config.cmake.in
@@ -0,0 +1,12 @@
+set(Libhicn_VERSION "@VERSION_MAJOR@.@VERSION_MINOR@.@VERSION_PATCH@")
+
+@PACKAGE_INIT@
+
+set(Libhicn_VERSION_MAJOR "@VERSION_MAJOR@")
+set(Libhicn_VERSION_MINOR "@VERSION_MINOR@")
+set(Libhicn_VERSION_PATCH "@VERSION_PATCH@")
+
+set_and_check(Libhicn_INCLUDE_DIRS  "@PACKAGE_Libhicn_INCLUDE_DIRS@")
+include("${CMAKE_CURRENT_LIST_DIR}/libhicn-targets.cmake")
+
+check_required_components(Libhicn)
diff --git a/lib/src/mapme.c b/lib/src/mapme.c
index 3e7e8bc80..b8e8eaed2 100644
--- a/lib/src/mapme.c
+++ b/lib/src/mapme.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -26,8 +26,8 @@
 #include <hicn/protocol/ipv6.h>
 
 size_t
-hicn_mapme_v4_create_packet (u8 * buf, const hicn_prefix_t * prefix,
-			     const mapme_params_t * params)
+hicn_mapme_v4_create_packet (u8 *buf, const hicn_prefix_t *prefix,
+			     const mapme_params_t *params)
 {
   hicn_mapme_v4_header_t *mh = (hicn_mapme_v4_header_t *) buf;
   /* *INDENT-OFF* */
@@ -41,14 +41,14 @@ hicn_mapme_v4_create_packet (u8 * buf, const hicn_prefix_t * prefix,
       .ttl = HICN_MAPME_TTL,
       .protocol = IPPROTO_ICMP,
       .csum = 0,
-      .saddr.as_u32 = 0,
-      .daddr = prefix->name.ip4,
+      .saddr.as_u32 = IPV4_LOOPBACK.v4.as_u32,
+      .daddr = prefix->name.v4,
      },
     .icmp_rd = {
       .type = ((params->type == UPDATE) || (params->type == NOTIFICATION)) ? HICN_MAPME_ICMP_TYPE_IPV4 : HICN_MAPME_ICMP_TYPE_ACK_IPV4,
       .code = HICN_MAPME_ICMP_CODE,
       .csum = 0,
-      .ip = prefix->name.ip4,
+      .ip = prefix->name.v4,
     },
     .seq = htonl(params->seq),
     .len = prefix->len,
@@ -59,15 +59,15 @@ hicn_mapme_v4_create_packet (u8 * buf, const hicn_prefix_t * prefix,
 }
 
 size_t
-hicn_mapme_v6_create_packet (u8 * buf, const hicn_prefix_t * prefix,
-			     const mapme_params_t * params)
+hicn_mapme_v6_create_packet (u8 *buf, const hicn_prefix_t *prefix,
+			     const mapme_params_t *params)
 {
   hicn_mapme_v6_header_t *mh = (hicn_mapme_v6_header_t *) buf;
   /* *INDENT-OFF* */
   *mh = (hicn_mapme_v6_header_t) {
     .ip = {
-      .saddr = {{0}},
-      .daddr = prefix->name.ip6,
+      .saddr = IPV6_LOOPBACK.v6,
+      .daddr = prefix->name.v6,
       .version_class_flow = htonl(
           (IPV6_DEFAULT_VERSION       << 28) |
           (IPV6_DEFAULT_TRAFFIC_CLASS << 20) |
@@ -81,8 +81,8 @@ hicn_mapme_v6_create_packet (u8 * buf, const hicn_prefix_t * prefix,
       .code = HICN_MAPME_ICMP_CODE,
       .csum = 0,
       .res = 0,
-      .tgt = prefix->name.ip6,
-      .dst = prefix->name.ip6,
+      .tgt = prefix->name.v6,
+      .dst = prefix->name.v6,
     },
     .seq = htonl(params->seq),
     .len = prefix->len,
@@ -92,8 +92,8 @@ hicn_mapme_v6_create_packet (u8 * buf, const hicn_prefix_t * prefix,
 }
 
 size_t
-hicn_mapme_create_packet (u8 * buf, const hicn_prefix_t * prefix,
-			  const mapme_params_t * params)
+hicn_mapme_create_packet (u8 *buf, const hicn_prefix_t *prefix,
+			  const mapme_params_t *params)
 {
   /* We currently ignore subsequent protocol definitions */
   if (PREDICT_TRUE (params->protocol == IPPROTO_IPV6))
@@ -103,9 +103,9 @@ hicn_mapme_create_packet (u8 * buf, const hicn_prefix_t * prefix,
 }
 
 size_t
-hicn_mapme_v4_create_ack (u8 * buf, const mapme_params_t * params)
+hicn_mapme_v4_create_ack (u8 *buf, const mapme_params_t *params)
 {
-  ip4_address_t tmp;		// tmp storage for swapping IP addresses for ACK
+  ip4_address_t tmp; // tmp storage for swapping IP addresses for ACK
 
   hicn_mapme_v4_header_t *mh = (hicn_mapme_v4_header_t *) buf;
   tmp = mh->ip.daddr;
@@ -119,9 +119,9 @@ hicn_mapme_v4_create_ack (u8 * buf, const mapme_params_t * params)
 }
 
 size_t
-hicn_mapme_v6_create_ack (u8 * buf, const mapme_params_t * params)
+hicn_mapme_v6_create_ack (u8 *buf, const mapme_params_t *params)
 {
-  ip6_address_t tmp;		// tmp storage for swapping IP addresses for ACK
+  ip6_address_t tmp; // tmp storage for swapping IP addresses for ACK
 
   hicn_mapme_v6_header_t *mh = (hicn_mapme_v6_header_t *) buf;
   tmp = mh->ip.daddr;
@@ -135,7 +135,7 @@ hicn_mapme_v6_create_ack (u8 * buf, const mapme_params_t * params)
 }
 
 size_t
-hicn_mapme_create_ack (u8 * buf, const mapme_params_t * params)
+hicn_mapme_create_ack (u8 *buf, const mapme_params_t *params)
 {
   /* We currently ignore subsequent protocol definitions */
   if (PREDICT_TRUE (params->protocol == IPPROTO_IPV6))
@@ -145,22 +145,23 @@ hicn_mapme_create_ack (u8 * buf, const mapme_params_t * params)
 }
 
 int
-hicn_mapme_v4_parse_packet (const u8 * packet, hicn_prefix_t * prefix,
-			    mapme_params_t * params)
+hicn_mapme_v4_parse_packet (const u8 *packet, hicn_prefix_t *prefix,
+			    mapme_params_t *params)
 {
   hicn_mapme_v4_header_t *mh = (hicn_mapme_v4_header_t *) packet;
 
   /* *INDENT-OFF* */
   *prefix = (hicn_prefix_t) {
     .name = {
-      .ip4 = HICN_MAPME_TYPE_IS_IU (mh->icmp_rd.type) ? mh->ip.daddr : mh->ip.saddr,
+      .v4 = HICN_MAPME_TYPE_IS_IU (mh->icmp_rd.type) ? mh->ip.daddr : mh->ip.saddr,
     },
     .len = mh->len,
   };
 
-  *params = (mapme_params_t) {
+  *params = (mapme_params_t){
     .protocol = IPPROTO_IP,
-    .type = (mh->icmp_rd.type == HICN_MAPME_ICMP_TYPE_IPV4) ? UPDATE : UPDATE_ACK,
+    .type =
+      (mh->icmp_rd.type == HICN_MAPME_ICMP_TYPE_IPV4) ? UPDATE : UPDATE_ACK,
     .seq = ntohl (mh->seq),
   };
   /* *INDENT-ON* */
@@ -169,22 +170,23 @@ hicn_mapme_v4_parse_packet (const u8 * packet, hicn_prefix_t * prefix,
 }
 
 int
-hicn_mapme_v6_parse_packet (const u8 * packet, hicn_prefix_t * prefix,
-			    mapme_params_t * params)
+hicn_mapme_v6_parse_packet (const u8 *packet, hicn_prefix_t *prefix,
+			    mapme_params_t *params)
 {
   hicn_mapme_v6_header_t *mh = (hicn_mapme_v6_header_t *) packet;
 
   /* *INDENT-OFF* */
   *prefix = (hicn_prefix_t) {
     .name = {
-      .ip6 = HICN_MAPME_TYPE_IS_IU (mh->icmp_rd.type) ? mh->ip.daddr : mh->ip.saddr,
+      .v6 = HICN_MAPME_TYPE_IS_IU (mh->icmp_rd.type) ? mh->ip.daddr : mh->ip.saddr,
     },
     .len = mh->len,
   };
 
-  *params = (mapme_params_t) {
+  *params = (mapme_params_t){
     .protocol = IPPROTO_IPV6,
-    .type = (mh->icmp_rd.type == HICN_MAPME_ICMP_TYPE_IPV6) ? UPDATE : UPDATE_ACK,
+    .type =
+      (mh->icmp_rd.type == HICN_MAPME_ICMP_TYPE_IPV6) ? UPDATE : UPDATE_ACK,
     .seq = ntohl (mh->seq),
   };
   /* *INDENT-ON* */
@@ -193,8 +195,8 @@ hicn_mapme_v6_parse_packet (const u8 * packet, hicn_prefix_t * prefix,
 }
 
 int
-hicn_mapme_parse_packet (const u8 * packet, hicn_prefix_t * prefix,
-			 mapme_params_t * params)
+hicn_mapme_parse_packet (const u8 *packet, hicn_prefix_t *prefix,
+			 mapme_params_t *params)
 {
   switch (HICN_IP_VERSION (packet))
     {
diff --git a/lib/src/name.c b/lib/src/name.c
index 54b2a76aa..3bdcbbdb4 100644
--- a/lib/src/name.c
+++ b/lib/src/name.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -19,522 +19,210 @@
  */
 
 #ifndef _WIN32
-#include <arpa/inet.h>          // inet_ptin
+#include <arpa/inet.h> // inet_ptin
 #endif
 #include <errno.h>
 #include <stdio.h>
-#include <stdlib.h>             // strtoul
-#include <string.h>             // memcpy
+#include <stdlib.h> // strtoul
+#include <string.h> // memcpy
 
 #include <hicn/common.h>
 #include <hicn/error.h>
 #include <hicn/name.h>
+#include <hicn/util/sstrncpy.h>
 
-#if ! HICN_VPP_PLUGIN
 int
-hicn_name_create (const char *ip_address, u32 id, hicn_name_t * name)
+hicn_name_create (const char *ip_address, u32 id, hicn_name_t *name)
 {
   int af, rc;
 
-  af = get_addr_family (ip_address);
-
-  switch (af)
-    {
-    case AF_INET:
-      if (name->type == HNT_UNSPEC)
-        {
-          name->type = HNT_CONTIGUOUS_V4;
-        }
-      name->len = IPV4_ADDR_LEN;
-      break;
-    case AF_INET6:
-      if (name->type == HNT_UNSPEC)
-        {
-          name->type = HNT_CONTIGUOUS_V6;
-        }
-      name->len = IPV6_ADDR_LEN;
-      break;
-    default:
-      return HICN_LIB_ERROR_INVALID_IP_ADDRESS;
-    }
+  memset (name, 0, sizeof (hicn_name_t));
 
-  if ((name->type != HNT_CONTIGUOUS_V4) && (name->type != HNT_CONTIGUOUS_V6))
-    {
-      return HICN_LIB_ERROR_NOT_IMPLEMENTED;
-    }
+  af = get_addr_family (ip_address);
+  int v4 = (af == AF_INET);
+  u8 *dst = (u8 *) (v4 * (intptr_t) (name->prefix.v4.as_u8) +
+		    (1 - v4) * (intptr_t) (name->prefix.v6.as_u8));
+  rc = inet_pton (af, ip_address, dst);
 
-  rc = inet_pton (af, ip_address, name->buffer);
-  if (rc <= 0)
+  if (rc != 1)
     {
       return HICN_LIB_ERROR_UNKNOWN_ADDRESS;
     }
-  *(u32 *) (name->buffer + name->len) = id;
+
+  name->suffix = id;
 
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-hicn_name_create_from_ip_prefix (const ip_prefix_t * prefix, u32 id,
-                                  hicn_name_t * name)
+hicn_name_create_from_ip_prefix (const ip_prefix_t *prefix, u32 id,
+				 hicn_name_t *name)
 {
-  switch (prefix->family)
-    {
-      case AF_INET:
-        name->type = HNT_CONTIGUOUS_V4;
-        memcpy (name->buffer, prefix->address.v4.buffer,
-                ip_address_len(prefix->family));
-        name->len = IPV4_ADDR_LEN;
-        break;
-      case AF_INET6:
-        name->type = HNT_CONTIGUOUS_V6;
-        memcpy (name->buffer, prefix->address.v6.buffer,
-                ip_address_len(prefix->family));
-        name->len = IPV6_ADDR_LEN;
-        break;
-      default:
-        return HICN_LIB_ERROR_INVALID_IP_ADDRESS;
-    }
-
-  *(u32 *) (name->buffer + name->len) = id;
+  name->prefix.v6.as_u64[0] = prefix->address.v6.as_u64[0];
+  name->prefix.v6.as_u64[1] = prefix->address.v6.as_u64[1];
+  name->suffix = id;
 
   return HICN_LIB_ERROR_NONE;
 }
 
-u8
-hicn_name_get_length (const hicn_name_t * name)
-{
-  return name->len;
-}
-
 int
-hicn_name_compare (const hicn_name_t * name_1, const hicn_name_t * name_2,
-                   bool consider_segment)
+hicn_name_compare (const hicn_name_t *name_1, const hicn_name_t *name_2,
+		   bool consider_segment)
 {
-  hicn_name_t *name1 = (hicn_name_t *) name_1;
-  hicn_name_t *name2 = (hicn_name_t *) name_2;
-
-  if ((name1->type == HNT_CONTIGUOUS_V4 && name2->type == HNT_CONTIGUOUS_V6)
-      || (name1->type == HNT_CONTIGUOUS_V6
-          && name2->type == HNT_CONTIGUOUS_V4))
-    {
-      return -1;
-    }
-
-  if ((name1->type == HNT_IOV_V4 && name2->type == HNT_IOV_V6) ||
-      (name1->type == HNT_IOV_V6 && name2->type == HNT_IOV_V4))
-    {
-      return -1;
-    }
-
-  if ((name1->type == HNT_IOV_V4 && name2->type == HNT_CONTIGUOUS_V6) ||
-      (name1->type == HNT_IOV_V6 && name2->type == HNT_CONTIGUOUS_V4))
-    {
-      return -1;
-    }
-
-  if (name1->type == HNT_UNSPEC || name2->type == HNT_UNSPEC)
-    {
-      return -1;
-    }
-
-  size_t len1 = 0, len2 = 0;
+  int ret;
+  ret = memcmp (&name_1->prefix.v6.buffer, &name_2->prefix.v6.buffer,
+		sizeof (name_1->prefix.v6));
 
-  u8 *buffer11, *buffer12, *buffer21, *buffer22;
+  if (consider_segment)
+    ret |= !(name_1->suffix == name_2->suffix);
 
-  switch (name1->type)
-    {
-    case HNT_CONTIGUOUS_V4:
-      buffer11 = name1->buffer;
-      buffer12 = name1->buffer + IPV4_ADDR_LEN;
-      len1 = IPV4_ADDR_LEN;
-      break;
-    case HNT_CONTIGUOUS_V6:
-      buffer11 = name1->buffer;
-      buffer12 = name1->buffer + IPV6_ADDR_LEN;
-      len1 = IPV6_ADDR_LEN;
-      break;
-    case HNT_IOV_V4:
-      buffer11 = name1->iov.buffers[0].iov_base;
-      buffer12 = name1->iov.buffers[1].iov_base;
-      len1 = IPV4_ADDR_LEN;
-      break;
-    case HNT_IOV_V6:
-      buffer11 = name1->iov.buffers[0].iov_base;
-      buffer12 = name1->iov.buffers[1].iov_base;
-      len1 = IPV6_ADDR_LEN;
-      break;
-    default:
-      return HICN_LIB_ERROR_NOT_IMPLEMENTED;
-    }
-
-  switch (name2->type)
-    {
-    case HNT_CONTIGUOUS_V4:
-      buffer21 = name2->buffer;
-      buffer22 = name2->buffer + IPV4_ADDR_LEN;
-      len2 = IPV4_ADDR_LEN;
-      break;
-    case HNT_CONTIGUOUS_V6:
-      buffer21 = name2->buffer;
-      buffer22 = name2->buffer + IPV6_ADDR_LEN;
-      len2 = IPV6_ADDR_LEN;
-      break;
-    case HNT_IOV_V4:
-      buffer21 = name2->iov.buffers[0].iov_base;
-      buffer22 = name2->iov.buffers[1].iov_base;
-      len2 = IPV4_ADDR_LEN;
-      break;
-    case HNT_IOV_V6:
-      buffer21 = name2->iov.buffers[0].iov_base;
-      buffer22 = name2->iov.buffers[1].iov_base;
-      len2 = IPV6_ADDR_LEN;
-      break;
-    default:
-      return HICN_LIB_ERROR_NOT_IMPLEMENTED;
-    }
-
-  // Sanity check
-  if (len1 != len2)
-    {
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
-
-  int ret1 = memcmp ((u8 *) buffer11, (u8 *) buffer21, len1);
-
-  if (!consider_segment)
-    {
-      return ret1;
-    }
-
-  int ret2 = memcmp ((u8 *) buffer12, (u8 *) buffer22, HICN_SEGMENT_LEN);
-
-  return ret1 || ret2;
+  return ret;
 }
 
 int
-hicn_name_hash (const hicn_name_t * name, u32 * hash, bool consider_suffix)
+hicn_name_hash (const hicn_name_t *name, u32 *hash, bool consider_suffix)
 {
-  switch (name->type)
-    {
-    case HNT_CONTIGUOUS_V4:
-      *hash = hash32 (name->buffer, consider_suffix ? HICN_V4_NAME_LEN : HICN_V4_PREFIX_LEN);
-      break;
-    case HNT_CONTIGUOUS_V6:
-      *hash = hash32 (name->buffer, consider_suffix ? HICN_V6_NAME_LEN : HICN_V6_PREFIX_LEN);
-      break;
-    case HNT_IOV_V4:
-    case HNT_IOV_V6:
-      *hash =
-	hash32 (name->iov.buffers[0].iov_base, name->iov.buffers[0].iov_len);
-      if (consider_suffix)
-        {
-          *hash = cumulative_hash32 (name->iov.buffers[1].iov_base,
-			      name->iov.buffers[1].iov_len, *hash);
-        }
-      break;
-    default:
-      return HICN_LIB_ERROR_NOT_IMPLEMENTED;
-    }
+  *hash = hash32 (&name->prefix, sizeof (name->prefix));
+
+  if (consider_suffix)
+    *hash = cumulative_hash32 (&name->suffix, sizeof (name->suffix), *hash);
 
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-hicn_name_empty (hicn_name_t * name)
+hicn_name_empty (hicn_name_t *name)
 {
-  return name->type == HNT_UNSPEC ? 1 : 0;
+  return _is_unspec (name);
 }
 
 int
-hicn_name_copy (hicn_name_t * dst, const hicn_name_t * src)
+hicn_name_copy (hicn_name_t *dst, const hicn_name_t *src)
 {
-  switch (src->type)
-    {
-    case HNT_CONTIGUOUS_V4:
-    case HNT_CONTIGUOUS_V6:
-      *dst = *src;
-      break;
-    case HNT_IOV_V4:
-    case HNT_IOV_V6:
-      dst->type =
-        src->type == HNT_IOV_V4 ? HNT_CONTIGUOUS_V4 : HNT_CONTIGUOUS_V6;
-      memcpy (dst->buffer, src->iov.buffers[0].iov_base,
-              src->iov.buffers[0].iov_len);
-      memcpy (dst->buffer + src->iov.buffers[0].iov_len,
-              src->iov.buffers[1].iov_base, src->iov.buffers[1].iov_len);
-      break;
-    default:
-      return HICN_LIB_ERROR_NOT_IMPLEMENTED;
-    }
-
+  *dst = *src;
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-hicn_name_copy_to_destination (u8 * dst, const hicn_name_t * src,
-                               bool copy_suffix)
+hicn_name_copy_prefix_to_destination (u8 *dst, const hicn_name_t *name)
 {
-  size_t length;
-
-  switch (src->type)
-    {
-    case HNT_CONTIGUOUS_V4:
-      if (copy_suffix)
-        {
-          length = HICN_V4_NAME_LEN;
-        }
-      else
-        {
-          length = IPV4_ADDR_LEN;
-        }
-      memcpy (dst, src->buffer, length);
-      break;
-    case HNT_CONTIGUOUS_V6:
-      if (copy_suffix)
-        {
-          length = HICN_V6_NAME_LEN;
-        }
-      else
-        {
-          length = IPV6_ADDR_LEN;
-        }
-      memcpy (dst, src->buffer, length);
-      break;
-    case HNT_IOV_V4:
-    case HNT_IOV_V6:
-      memcpy (dst, src->iov.buffers[0].iov_base, src->iov.buffers[0].iov_len);
-      if (copy_suffix)
-        {
-          memcpy (dst + src->iov.buffers[0].iov_len,
-                  src->iov.buffers[1].iov_base, src->iov.buffers[1].iov_len);
-        }
-      break;
-    default:
-      return HICN_LIB_ERROR_NOT_IMPLEMENTED;
-    }
+  int v4 = _is_inet4 (name);
+  const u8 *src = (u8 *) (v4 * (intptr_t) (name->prefix.v4.as_u8) +
+			  (1 - v4) * (intptr_t) (name->prefix.v6.as_u8));
+  size_t size = v4 * IPV4_ADDR_LEN + (1 - v4) * IPV6_ADDR_LEN;
+  memcpy (dst, src, size);
 
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-hicn_name_set_seq_number (hicn_name_t * name, u32 seq_number)
+hicn_name_set_seq_number (hicn_name_t *name, u32 seq_number)
 {
-  u8 *sequence_number = NULL;
-
-  switch (name->type)
-    {
-    case HNT_CONTIGUOUS_V6:
-      sequence_number = name->buffer + IPV6_ADDR_LEN;
-      break;
-    case HNT_CONTIGUOUS_V4:
-      sequence_number = name->buffer + IPV4_ADDR_LEN;
-      break;
-    case HNT_IOV_V6:
-    case HNT_IOV_V4:
-      sequence_number = name->iov.buffers[1].iov_base;
-      break;
-    case HNT_UNSPEC:
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
-
-  if (sequence_number)
-    {
-      *(u32 *) sequence_number = seq_number;
-    }
-  else
-    {
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
-
+  name->suffix = seq_number;
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-hicn_name_to_sockaddr_address (const hicn_name_t * name,
-                               struct sockaddr *ip_address)
+hicn_name_to_sockaddr_address (const hicn_name_t *name,
+			       struct sockaddr *ip_address)
 {
   struct sockaddr_in6 *tmp6 = (struct sockaddr_in6 *) ip_address;
   struct sockaddr_in *tmp4 = (struct sockaddr_in *) ip_address;
 
-  switch (name->type)
+  assert (!_is_unspec (name));
+
+  if (_is_inet4 (name))
+    {
+      tmp4->sin_family = AF_INET;
+      tmp4->sin_port = DUMMY_PORT;
+      memcpy (&tmp4->sin_addr, &name->prefix.v4, IPV4_ADDR_LEN);
+    }
+  else
     {
-    case HNT_CONTIGUOUS_V6:
-      tmp6->sin6_family = AF_INET6;
-      tmp6->sin6_scope_id = 0;
-      tmp6->sin6_port = DUMMY_PORT;
-      memcpy (&tmp6->sin6_addr, name->buffer, IPV6_ADDR_LEN);
-      break;
-    case HNT_IOV_V6:
       tmp6->sin6_family = AF_INET6;
       tmp6->sin6_scope_id = 0;
       tmp6->sin6_port = DUMMY_PORT;
-      memcpy (&tmp6->sin6_addr, name->iov.buffers[0].iov_base,
-              name->iov.buffers[0].iov_len);
-      break;
-    case HNT_CONTIGUOUS_V4:
-      tmp4->sin_family = AF_INET;
-      tmp4->sin_port = DUMMY_PORT;
-      memcpy (&tmp4->sin_addr, name->buffer, IPV4_ADDR_LEN);
-      break;
-    case HNT_IOV_V4:
-      tmp4->sin_family = AF_INET;
-      tmp4->sin_port = DUMMY_PORT;
-      memcpy (&tmp4->sin_addr, name->iov.buffers[0].iov_base,
-              name->iov.buffers[0].iov_len);
-      break;
-    default:
-      return HICN_LIB_ERROR_UNEXPECTED;
+      memcpy (&tmp6->sin6_addr, &name->prefix.v6, IPV6_ADDR_LEN);
     }
 
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-hicn_name_to_ip_prefix (const hicn_name_t * name, ip_prefix_t * prefix)
+hicn_name_to_ip_prefix (const hicn_name_t *name, ip_prefix_t *prefix)
 {
-  switch (name->type)
-    {
-    case HNT_CONTIGUOUS_V6:
-      memcpy (&prefix->address.v6.buffer, name->buffer, IPV6_ADDR_LEN);
-      prefix->family = AF_INET6;
-      break;
-    case HNT_IOV_V6:
-      memcpy (&prefix->address.v6.buffer, name->iov.buffers[0].iov_base,
-              name->iov.buffers[0].iov_len);
-      prefix->family = AF_INET6;
-      break;
-    case HNT_CONTIGUOUS_V4:
-      memcpy (&prefix->address.v4.buffer, name->buffer, IPV4_ADDR_LEN);
-      prefix->family = AF_INET;
-      break;
-    case HNT_IOV_V4:
-      memcpy (&prefix->address.v4.buffer, name->iov.buffers[0].iov_base,
-              name->iov.buffers[0].iov_len);
-      prefix->family = AF_INET;
-      break;
-    default:
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
+  int family, rc;
+  rc = hicn_name_get_family (name, &family);
+  if (rc)
+    return rc;
 
+  prefix->family = family;
+  prefix->address.v6.as_u64[0] = name->prefix.v6.as_u64[0];
+  prefix->address.v6.as_u64[1] = name->prefix.v6.as_u64[1];
+  prefix->len = 128;
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-hicn_name_get_seq_number (const hicn_name_t * name, u32 * seq_number)
+hicn_name_get_seq_number (const hicn_name_t *name, u32 *seq_number)
 {
-  const u8 *sequence_number = NULL;
-
-  switch (name->type)
-    {
-    case HNT_CONTIGUOUS_V6:
-      sequence_number = name->buffer + IPV6_ADDR_LEN;
-      break;
-    case HNT_CONTIGUOUS_V4:
-      sequence_number = name->buffer + IPV4_ADDR_LEN;
-      break;
-    case HNT_IOV_V6:
-    case HNT_IOV_V4:
-      sequence_number = name->iov.buffers[1].iov_base;
-      break;
-    default:
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
-
-  if (sequence_number)
-    {
-      *seq_number = *(u32 *) sequence_number;
-    }
-  else
-    {
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
-
+  *seq_number = name->suffix;
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-hicn_name_ntop (const hicn_name_t * src, char *dst, size_t len)
+hicn_name_ntop (const hicn_name_t *src, char *dst, size_t len)
 {
   int offset;
-  const char *rc;
-  void *seg_number = NULL;
-
-  switch (src->type)
-    {
-    case HNT_CONTIGUOUS_V6:
-      rc = inet_ntop (AF_INET6, src->buffer, dst, (socklen_t)len);
-      seg_number = (u8 *) src->buffer + IPV6_ADDR_LEN;
-      break;
-    case HNT_CONTIGUOUS_V4:
-      rc = inet_ntop (AF_INET, src->buffer, dst, (socklen_t)len);
-      seg_number = (u8 *) src->buffer + IPV4_ADDR_LEN;
-      break;
-    case HNT_IOV_V6:
-      rc = inet_ntop (AF_INET6, src->iov.buffers[0].iov_base, dst, (socklen_t)len);
-      seg_number = src->iov.buffers[1].iov_base;
-      break;
-    case HNT_IOV_V4:
-      rc = inet_ntop (AF_INET, src->iov.buffers[0].iov_base, dst, (socklen_t)len);
-      seg_number = src->iov.buffers[1].iov_base;
-      break;
-    default:
-      return HICN_LIB_ERROR_NOT_IMPLEMENTED;
-    }
+  const char *rc = NULL;
+  int v4 = _is_inet4 (src);
+  const u8 *addr = (u8 *) (v4 * (intptr_t) src->prefix.v4.as_u8 +
+			   (1 - v4) * (intptr_t) src->prefix.v6.as_u8);
+  int family = v4 * AF_INET + (1 - v4) * AF_INET6;
+  rc = inet_ntop (family, addr, dst, (socklen_t) len);
 
   if (!rc)
     {
-      goto ERR;
+      return HICN_LIB_ERROR_UNSPECIFIED;
     }
 
-  offset = (int) strlen (dst);
+  offset = (int) strnlen_s (dst, len);
   dst[offset] = '|';
 
-  sprintf (dst + offset + 1, "%lu", (unsigned long) (*(u32 *) seg_number));
+  snprintf (dst + offset + 1, len - offset - 1, "%lu",
+	    (unsigned long) (src->suffix));
 
   return HICN_LIB_ERROR_NONE;
-
-ERR:
-  return HICN_LIB_ERROR_UNSPECIFIED;
 }
 
 int
-hicn_name_pton (const char *src, hicn_name_t * dst)
+hicn_name_pton (const char *src, hicn_name_t *dst)
 {
   return HICN_LIB_ERROR_NOT_IMPLEMENTED;
 }
 
 int
-hicn_name_get_family (const hicn_name_t * name, int *family)
+hicn_name_get_family (const hicn_name_t *name, int *family)
 {
-  switch (name->type)
-    {
-    case HNT_CONTIGUOUS_V6:
-    case HNT_IOV_V6:
-      *family = AF_INET6;
-      break;
-    case HNT_CONTIGUOUS_V4:
-    case HNT_IOV_V4:
-      *family = AF_INET;
-      break;
-    default:
-      return HICN_LIB_ERROR_UNEXPECTED;
-    }
+  assert (!_is_unspec (name));
+  int v4 = _is_inet4 (name);
+  *family = v4 * AF_INET + (1 - v4) * AF_INET6;
 
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-hicn_prefix_create_from_ip_prefix (const ip_prefix_t * ip_prefix,
-                                    hicn_prefix_t * prefix)
+hicn_prefix_create_from_ip_prefix (const ip_prefix_t *ip_prefix,
+				   hicn_prefix_t *prefix)
 {
   switch (ip_prefix->family)
     {
     case AF_INET:
-      prefix->name.ip4.as_u32 = ip_prefix->address.v4.as_u32;
+      prefix->name.v4.as_u32 = ip_prefix->address.v4.as_u32;
       break;
     case AF_INET6:
-      prefix->name.ip6.as_u64[0] = ip_prefix->address.v6.as_u64[0];
-      prefix->name.ip6.as_u64[1] = ip_prefix->address.v6.as_u64[1];
+      prefix->name.v6.as_u64[0] = ip_prefix->address.v6.as_u64[0];
+      prefix->name.v6.as_u64[1] = ip_prefix->address.v6.as_u64[1];
       break;
     default:
       return HICN_LIB_ERROR_INVALID_IP_ADDRESS;
@@ -544,9 +232,6 @@ hicn_prefix_create_from_ip_prefix (const ip_prefix_t * ip_prefix,
   return HICN_LIB_ERROR_NONE;
 }
 
-#endif /* ! HICN_VPP_PLUGIN */
-
-
 /*
  * fd.io coding-style-patch-verification: ON
  *
diff --git a/lib/src/ops.c b/lib/src/ops.c
index ef12e9bf0..80ffcf3c5 100644
--- a/lib/src/ops.c
+++ b/lib/src/ops.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -27,8 +27,10 @@
 
 extern const hicn_ops_t hicn_ops_ipv4;
 extern const hicn_ops_t hicn_ops_icmp;
+extern const hicn_ops_t hicn_ops_udp;
 extern const hicn_ops_t hicn_ops_tcp;
 extern const hicn_ops_t hicn_ops_ipv6;
+extern const hicn_ops_t hicn_ops_new;
 extern const hicn_ops_t hicn_ops_ah;
 
 /* Declare empty operations (terminates recursion on protocol layers) */
@@ -39,6 +41,7 @@ DECLARE_get_interest_name (none, NONE);
 DECLARE_set_interest_name (none, NONE);
 DECLARE_get_interest_name_suffix (none, NONE);
 DECLARE_set_interest_name_suffix (none, NONE);
+DECLARE_is_interest (none, NONE);
 DECLARE_mark_packet_as_interest (none, NONE);
 DECLARE_mark_packet_as_data (none, NONE);
 DECLARE_reset_interest_for_hash (none, NONE);
@@ -63,6 +66,8 @@ DECLARE_get_header_length (none, NONE);
 DECLARE_get_current_header_length (none, NONE);
 DECLARE_get_payload_length (none, NONE);
 DECLARE_set_payload_length (none, NONE);
+DECLARE_get_payload_type (none, NONE);
+DECLARE_set_payload_type (none, NONE);
 DECLARE_get_signature_size (none, NONE);
 DECLARE_set_signature_size (none, NONE);
 DECLARE_set_signature_timestamp (none, NONE);
@@ -72,8 +77,10 @@ DECLARE_get_validation_algorithm (none, NONE);
 DECLARE_set_key_id (none, NONE);
 DECLARE_get_key_id (none, NONE);
 DECLARE_get_signature (none, NONE);
-DECLARE_get_signature_gap (none, NONE);
-DECLARE_set_signature_gap (none, NONE);
+DECLARE_get_signature_padding (none, NONE);
+DECLARE_set_signature_padding (none, NONE);
+DECLARE_is_last_data (none, NONE);
+DECLARE_set_last_data (none, NONE);
 DECLARE_HICN_OPS (none);
 
 /**
@@ -84,9 +91,11 @@ const hicn_ops_t *const hicn_ops_vft[] = {
   /*  0 */ [IPPROTO_IP] = &hicn_ops_ipv4,
   /*  1 */[IPPROTO_ICMP] = &hicn_ops_icmp,
   /*  6 */[IPPROTO_TCP] = &hicn_ops_tcp,
+  /*  6 */[IPPROTO_UDP] = &hicn_ops_udp,
   /* 41 */[IPPROTO_IPV6] = &hicn_ops_ipv6,
   /* 51 */[IPPROTO_AH] = &hicn_ops_ah,
   /* 58 */[IPPROTO_ICMPV6] = &hicn_ops_icmp,
+  /* 98 */[IPPROTO_ENCAP] = &hicn_ops_new,
   [IPPROTO_NONE] = &hicn_ops_none,
 };
 
diff --git a/lib/src/policy.c b/lib/src/policy.c
index 694f0ea5e..0b4850b93 100644
--- a/lib/src/policy.c
+++ b/lib/src/policy.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -21,41 +21,56 @@
 #include <stdio.h>
 #include <hicn/policy.h>
 
-const char * policy_tag_str[] = {
-    #define _(x, y) [POLICY_TAG_ ## x] = STRINGIZE(x),
-    foreach_policy_tag
-    #undef _
+const char *policy_tag_str[] = {
+#define _(x, y) [POLICY_TAG_##x] = STRINGIZE (x),
+  foreach_policy_tag
+#undef _
 };
 
 const char policy_tag_short_str[] = {
-    #define _(x, y) [POLICY_TAG_ ## x] = y,
-    foreach_policy_tag
-    #undef _
+#define _(x, y) [POLICY_TAG_##x] = y,
+  foreach_policy_tag
+#undef _
 };
 
-const char * policy_state_str[] = {
-    #define _(x) [POLICY_STATE_ ## x] = STRINGIZE(x),
-    foreach_policy_state
-    #undef _
+const char *policy_state_str[] = {
+#define _(x) [POLICY_STATE_##x] = STRINGIZE (x),
+  foreach_policy_state
+#undef _
 };
 
+policy_state_t
+policy_state_from_str (const char *str)
+{
+#define _(x)                                                                  \
+  if (strcasecmp (str, #x) == 0)                                              \
+    return POLICY_STATE_##x;                                                  \
+  else
+  foreach_policy_state
+#undef _
+    return POLICY_STATE_N;
+}
+
 int
-policy_tag_state_snprintf(char * s, size_t size, const policy_tag_state_t * tag_state)
+policy_tag_state_snprintf (char *s, size_t size,
+			   const policy_tag_state_t *tag_state)
 {
-    char *cur = s;
-    int rc;
-
-    if (tag_state->disabled > 1)
-        return -1;
-
-    rc = snprintf(cur, s + size - cur, "%s%s", (tag_state->disabled == 1) ? "!" : "", policy_state_str[tag_state->state]);
-    if (rc >=  (int)(s + size - cur))
-        return (int)(s + size - cur);
-    if (rc < 0)
-        return rc;
-    cur += rc;
-    if (size != 0 && cur >= s + size)
-        return (int)(cur - s);
-
-    return (int)(cur - s);
+  char *cur = s;
+  int rc;
+
+  if (tag_state->disabled > 1)
+    return -1;
+
+  rc = snprintf (cur, s + size - cur, "%s%s",
+		 (tag_state->disabled == 1) ? "!" : "",
+		 policy_state_str[tag_state->state]);
+  if (rc >= (int) (s + size - cur))
+    return (int) (s + size - cur);
+  if (rc < 0)
+    return rc;
+  cur += rc;
+  if (size != 0 && cur >= s + size)
+    return (int) (cur - s);
+
+  return (int) (cur - s);
 }
diff --git a/lib/src/protocol/ah.c b/lib/src/protocol/ah.c
index 13340eae1..b3d24161d 100644
--- a/lib/src/protocol/ah.c
+++ b/lib/src/protocol/ah.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -31,6 +31,7 @@ DECLARE_get_interest_name (ah, UNEXPECTED);
 DECLARE_set_interest_name (ah, UNEXPECTED);
 DECLARE_get_interest_name_suffix (ah, UNEXPECTED);
 DECLARE_set_interest_name_suffix (ah, UNEXPECTED);
+DECLARE_is_interest (ah, UNEXPECTED);
 DECLARE_mark_packet_as_interest (ah, UNEXPECTED);
 DECLARE_mark_packet_as_data (ah, UNEXPECTED);
 DECLARE_get_data_locator (ah, UNEXPECTED);
@@ -46,6 +47,10 @@ DECLARE_get_lifetime (ah, UNEXPECTED);
 DECLARE_set_lifetime (ah, UNEXPECTED);
 DECLARE_get_payload_length (ah, UNEXPECTED);
 DECLARE_set_payload_length (ah, UNEXPECTED);
+DECLARE_get_payload_type (ah, UNEXPECTED);
+DECLARE_set_payload_type (ah, UNEXPECTED);
+DECLARE_is_last_data (ah, UNEXPECTED);
+DECLARE_set_last_data (ah, UNEXPECTED);
 
 int
 ah_init_packet_header (hicn_type_t type, hicn_protocol_t *h)
@@ -69,6 +74,7 @@ ah_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t *h)
   if (rc < 0)
     return rc;
   memset (&(h->ah.validationPayload), 0, signature_size);
+  h->ah.signaturePadding = 0;
   return CHILD_OPS (reset_interest_for_hash, type, h);
 }
 
@@ -81,6 +87,7 @@ ah_reset_data_for_hash (hicn_type_t type, hicn_protocol_t *h)
   if (rc < 0)
     return rc;
   memset (&(h->ah.validationPayload), 0, signature_size);
+  h->ah.signaturePadding = 0;
   return CHILD_OPS (reset_interest_for_hash, type, h);
 }
 
@@ -102,7 +109,7 @@ ah_verify_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
 
 int
 ah_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
-		     const ip46_address_t *addr_new, ip46_address_t *addr_old)
+		     const ip_address_t *addr_new, ip_address_t *addr_old)
 {
   /* Nothing to do on signature */
   return HICN_LIB_ERROR_NONE;
@@ -110,7 +117,7 @@ ah_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
 
 int
 ah_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
-		 const ip46_address_t *addr_new, ip46_address_t *addr_old,
+		 const ip_address_t *addr_new, ip_address_t *addr_old,
 		 const hicn_faceid_t face_id, u8 reset_pl)
 {
   /* Nothing to do on signature */
@@ -162,7 +169,7 @@ int
 ah_set_signature_size (hicn_type_t type, hicn_protocol_t *h,
 		       const size_t signature_size)
 {
-  h->ah.payloadlen = (u8) (signature_size >> 2);
+  h->ah.payloadlen = signature_size >> 2;
   return HICN_LIB_ERROR_NONE;
 }
 
@@ -201,16 +208,17 @@ ah_get_validation_algorithm (hicn_type_t type, const hicn_protocol_t *h,
 }
 
 int
-ah_set_signature_gap (hicn_type_t type, hicn_protocol_t *h, uint8_t gap)
+ah_set_signature_padding (hicn_type_t type, hicn_protocol_t *h, size_t padding)
 {
-  h->ah.signatureGap = gap;
+  h->ah.signaturePadding = padding;
   return HICN_LIB_ERROR_NONE;
 }
 
 int
-ah_get_signature_gap (hicn_type_t type, const hicn_protocol_t *h, uint8_t *gap)
+ah_get_signature_padding (hicn_type_t type, const hicn_protocol_t *h,
+			  size_t *padding)
 {
-  *gap = h->ah.signatureGap;
+  *padding = h->ah.signaturePadding;
   return HICN_LIB_ERROR_NONE;
 }
 
diff --git a/lib/src/protocol/icmp.c b/lib/src/protocol/icmp.c
index 5783cf52c..0452e4fbb 100644
--- a/lib/src/protocol/icmp.c
+++ b/lib/src/protocol/icmp.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -24,6 +24,7 @@ DECLARE_get_interest_name (icmp, UNEXPECTED);
 DECLARE_set_interest_name (icmp, UNEXPECTED);
 DECLARE_get_interest_name_suffix (icmp, UNEXPECTED);
 DECLARE_set_interest_name_suffix (icmp, UNEXPECTED);
+DECLARE_is_interest (icmp, UNEXPECTED);
 DECLARE_mark_packet_as_interest (icmp, UNEXPECTED);
 DECLARE_mark_packet_as_data (icmp, UNEXPECTED);
 DECLARE_get_data_locator (icmp, UNEXPECTED);
@@ -40,7 +41,11 @@ DECLARE_set_lifetime (icmp, UNEXPECTED);
 DECLARE_get_length (icmp, UNEXPECTED);
 DECLARE_get_payload_length (icmp, UNEXPECTED);
 DECLARE_set_payload_length (icmp, UNEXPECTED);
+DECLARE_get_payload_type (icmp, UNEXPECTED);
+DECLARE_set_payload_type (icmp, UNEXPECTED);
 DECLARE_get_signature (icmp, UNEXPECTED);
+DECLARE_is_last_data (icmp, UNEXPECTED);
+DECLARE_set_last_data (icmp, UNEXPECTED);
 
 int
 icmp_init_packet_header (hicn_type_t type, hicn_protocol_t *h)
@@ -94,8 +99,7 @@ icmp_verify_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
 
 int
 icmp_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
-		       const ip46_address_t *addr_new,
-		       ip46_address_t *addr_old)
+		       const ip_address_t *addr_new, ip_address_t *addr_old)
 {
   return HICN_LIB_ERROR_NOT_IMPLEMENTED;
   //    u16 *icmp_checksum = &(h->icmp.csum);
@@ -120,7 +124,7 @@ icmp_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
 
 int
 icmp_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
-		   const ip46_address_t *addr_new, ip46_address_t *addr_old,
+		   const ip_address_t *addr_new, ip_address_t *addr_old,
 		   const hicn_faceid_t face_id, u8 reset_pl)
 {
   return HICN_LIB_ERROR_NOT_IMPLEMENTED;
@@ -184,16 +188,17 @@ icmp_set_signature_size (hicn_type_t type, hicn_protocol_t *h,
 }
 
 int
-icmp_set_signature_gap (hicn_type_t type, hicn_protocol_t *h, uint8_t gap)
+icmp_set_signature_padding (hicn_type_t type, hicn_protocol_t *h,
+			    size_t padding)
 {
-  return CHILD_OPS (set_signature_gap, type, h, gap);
+  return CHILD_OPS (set_signature_padding, type, h, padding);
 }
 
 int
-icmp_get_signature_gap (hicn_type_t type, const hicn_protocol_t *h,
-			uint8_t *gap)
+icmp_get_signature_padding (hicn_type_t type, const hicn_protocol_t *h,
+			    size_t *padding)
 {
-  return CHILD_OPS (get_signature_gap, type, h, gap);
+  return CHILD_OPS (get_signature_padding, type, h, padding);
 }
 
 int
diff --git a/lib/src/protocol/ipv4.c b/lib/src/protocol/ipv4.c
index cf50f9996..5d445f018 100644
--- a/lib/src/protocol/ipv4.c
+++ b/lib/src/protocol/ipv4.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -64,17 +64,17 @@ ipv4_init_packet_header (hicn_type_t type, hicn_protocol_t *h)
 
 int
 ipv4_get_interest_locator (hicn_type_t type, const hicn_protocol_t *h,
-			   ip46_address_t *ip_address)
+			   ip_address_t *ip_address)
 {
-  ip_address->ip4 = h->ipv4.saddr;
+  ip_address->v4 = h->ipv4.saddr;
   return HICN_LIB_ERROR_NONE;
 }
 
 int
 ipv4_set_interest_locator (hicn_type_t type, hicn_protocol_t *h,
-			   const ip46_address_t *ip_address)
+			   const ip_address_t *ip_address)
 {
-  h->ipv4.saddr = ip_address->ip4;
+  h->ipv4.saddr = ip_address->v4;
   return HICN_LIB_ERROR_NONE;
 }
 
@@ -82,20 +82,16 @@ int
 ipv4_get_interest_name (hicn_type_t type, const hicn_protocol_t *h,
 			hicn_name_t *name)
 {
-  name->ip4.prefix_as_ip4 = h->ipv4.daddr;
-#ifndef HICN_VPP_PLUGIN
-  name->type = HNT_CONTIGUOUS_V4;
-  name->len = HICN_V4_NAME_LEN;
-#endif /* HICN_VPP_PLUGIN */
-  return CHILD_OPS (get_interest_name_suffix, type, h, &(name->ip4.suffix));
+  name->prefix.v4 = h->ipv4.daddr;
+  return CHILD_OPS (get_interest_name_suffix, type, h, &(name->suffix));
 }
 
 int
 ipv4_set_interest_name (hicn_type_t type, hicn_protocol_t *h,
 			const hicn_name_t *name)
 {
-  h->ipv4.daddr = name->ip4.prefix_as_ip4;
-  return CHILD_OPS (set_interest_name_suffix, type, h, &(name->ip4.suffix));
+  h->ipv4.daddr = name->prefix.v4;
+  return CHILD_OPS (set_interest_name_suffix, type, h, &(name->suffix));
 }
 
 int
@@ -113,6 +109,12 @@ ipv4_set_interest_name_suffix (hicn_type_t type, hicn_protocol_t *h,
 }
 
 int
+ipv4_is_interest (hicn_type_t type, const hicn_protocol_t *h, int *is_interest)
+{
+  return CHILD_OPS (is_interest, type, h, is_interest);
+}
+
+int
 ipv4_mark_packet_as_interest (hicn_type_t type, hicn_protocol_t *h)
 {
   return CHILD_OPS (mark_packet_as_interest, type, h);
@@ -135,17 +137,17 @@ ipv4_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t *h)
 
 int
 ipv4_get_data_locator (hicn_type_t type, const hicn_protocol_t *h,
-		       ip46_address_t *ip_address)
+		       ip_address_t *ip_address)
 {
-  ip_address->ip4 = h->ipv4.daddr;
+  ip_address->v4 = h->ipv4.daddr;
   return HICN_LIB_ERROR_NONE;
 }
 
 int
 ipv4_set_data_locator (hicn_type_t type, hicn_protocol_t *h,
-		       const ip46_address_t *ip_address)
+		       const ip_address_t *ip_address)
 {
-  h->ipv4.daddr = ip_address->ip4;
+  h->ipv4.daddr = ip_address->v4;
   return HICN_LIB_ERROR_NONE;
 }
 
@@ -153,20 +155,16 @@ int
 ipv4_get_data_name (hicn_type_t type, const hicn_protocol_t *h,
 		    hicn_name_t *name)
 {
-  name->ip4.prefix_as_ip4 = h->ipv4.saddr;
-#ifndef HICN_VPP_PLUGIN
-  name->type = HNT_CONTIGUOUS_V4;
-  name->len = HICN_V4_NAME_LEN;
-#endif /* HICN_VPP_PLUGIN */
-  return CHILD_OPS (get_data_name_suffix, type, h, &(name->ip4.suffix));
+  name->prefix.v4 = h->ipv4.saddr;
+  return CHILD_OPS (get_data_name_suffix, type, h, &(name->suffix));
 }
 
 int
 ipv4_set_data_name (hicn_type_t type, hicn_protocol_t *h,
 		    const hicn_name_t *name)
 {
-  h->ipv4.saddr = name->ip4.prefix_as_ip4;
-  return CHILD_OPS (set_data_name_suffix, type, h, &(name->ip4.suffix));
+  h->ipv4.saddr = name->prefix.v4;
+  return CHILD_OPS (set_data_name_suffix, type, h, &(name->suffix));
 }
 
 int
@@ -311,16 +309,15 @@ ipv4_verify_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
 
 int
 ipv4_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
-		       const ip46_address_t *addr_new,
-		       ip46_address_t *addr_old)
+		       const ip_address_t *addr_new, ip_address_t *addr_old)
 {
   // ASSERT(addr_old == NULL);
-  addr_old->ip4 = h->ipv4.saddr;
+  addr_old->v4 = h->ipv4.saddr;
   addr_old->pad[0] = 0;
   addr_old->pad[1] = 0;
   addr_old->pad[2] = 0;
 
-  h->ipv4.saddr = addr_new->ip4;
+  h->ipv4.saddr = addr_new->v4;
   h->ipv4.csum = 0;
   h->ipv4.csum = csum (&h->ipv4, IPV4_HDRLEN, 0);
 
@@ -329,16 +326,16 @@ ipv4_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
 
 int
 ipv4_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
-		   const ip46_address_t *addr_new, ip46_address_t *addr_old,
+		   const ip_address_t *addr_new, ip_address_t *addr_old,
 		   const hicn_faceid_t face_id, u8 reset_pl)
 {
   // ASSERT(addr_old == NULL);
-  addr_old->ip4 = h->ipv4.daddr;
+  addr_old->v4 = h->ipv4.daddr;
   addr_old->pad[0] = 0;
   addr_old->pad[1] = 0;
   addr_old->pad[2] = 0;
 
-  h->ipv4.daddr = addr_new->ip4;
+  h->ipv4.daddr = addr_new->v4;
   h->ipv4.csum = 0;
   h->ipv4.csum = csum (&h->ipv4, IPV4_HDRLEN, 0);
 
@@ -408,6 +405,20 @@ ipv4_set_payload_length (hicn_type_t type, hicn_protocol_t *h,
 }
 
 int
+ipv4_get_payload_type (hicn_type_t type, const hicn_protocol_t *h,
+		       hicn_payload_type_t *payload_type)
+{
+  return CHILD_OPS (get_payload_type, type, h, payload_type);
+}
+
+int
+ipv4_set_payload_type (hicn_type_t type, hicn_protocol_t *h,
+		       hicn_payload_type_t payload_type)
+{
+  return CHILD_OPS (set_payload_type, type, h, payload_type);
+}
+
+int
 ipv4_get_signature_size (hicn_type_t type, const hicn_protocol_t *h,
 			 size_t *signature_size)
 {
@@ -422,16 +433,17 @@ ipv4_set_signature_size (hicn_type_t type, hicn_protocol_t *h,
 }
 
 int
-ipv4_set_signature_gap (hicn_type_t type, hicn_protocol_t *h, uint8_t gap)
+ipv4_set_signature_padding (hicn_type_t type, hicn_protocol_t *h,
+			    size_t padding)
 {
-  return CHILD_OPS (set_signature_gap, type, h, gap);
+  return CHILD_OPS (set_signature_padding, type, h, padding);
 }
 
 int
-ipv4_get_signature_gap (hicn_type_t type, const hicn_protocol_t *h,
-			uint8_t *gap)
+ipv4_get_signature_padding (hicn_type_t type, const hicn_protocol_t *h,
+			    size_t *padding)
 {
-  return CHILD_OPS (get_signature_gap, type, h, gap);
+  return CHILD_OPS (get_signature_padding, type, h, padding);
 }
 
 int
@@ -481,6 +493,18 @@ ipv4_get_signature (hicn_type_t type, hicn_protocol_t *h, uint8_t **signature)
   return CHILD_OPS (get_signature, type, h, signature);
 }
 
+int
+ipv4_is_last_data (hicn_type_t type, const hicn_protocol_t *h, int *is_last)
+{
+  return CHILD_OPS (is_last_data, type, h, is_last);
+}
+
+int
+ipv4_set_last_data (hicn_type_t type, hicn_protocol_t *h)
+{
+  return CHILD_OPS (set_last_data, type, h);
+}
+
 DECLARE_HICN_OPS (ipv4);
 
 /*
diff --git a/lib/src/protocol/ipv6.c b/lib/src/protocol/ipv6.c
index 7ac55b2be..b3a107a13 100644
--- a/lib/src/protocol/ipv6.c
+++ b/lib/src/protocol/ipv6.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -33,8 +33,8 @@ ipv6_init_packet_header (hicn_type_t type, hicn_protocol_t *h)
 
   /* *INDENT-OFF* */
   h->ipv6 = (_ipv6_header_t){
-    .saddr = { { 0 } },
-    .daddr = { { 0 } },
+    .saddr = IP6_ADDRESS_EMPTY,
+    .daddr = IP6_ADDRESS_EMPTY,
     .version_class_flow = htonl ((IPV6_DEFAULT_VERSION << 28) |
 				 (IPV6_DEFAULT_TRAFFIC_CLASS << 20) |
 				 (IPV6_DEFAULT_FLOW_LABEL & 0xfffff)),
@@ -48,17 +48,17 @@ ipv6_init_packet_header (hicn_type_t type, hicn_protocol_t *h)
 
 int
 ipv6_get_interest_locator (hicn_type_t type, const hicn_protocol_t *h,
-			   ip46_address_t *ip_address)
+			   ip_address_t *ip_address)
 {
-  ip_address->ip6 = h->ipv6.saddr;
+  ip_address->v6 = h->ipv6.saddr;
   return HICN_LIB_ERROR_NONE;
 }
 
 int
 ipv6_set_interest_locator (hicn_type_t type, hicn_protocol_t *h,
-			   const ip46_address_t *ip_address)
+			   const ip_address_t *ip_address)
 {
-  h->ipv6.saddr = ip_address->ip6;
+  h->ipv6.saddr = ip_address->v6;
   return HICN_LIB_ERROR_NONE;
 }
 
@@ -66,20 +66,16 @@ int
 ipv6_get_interest_name (hicn_type_t type, const hicn_protocol_t *h,
 			hicn_name_t *name)
 {
-  name->ip6.prefix_as_ip6 = h->ipv6.daddr;
-#ifndef HICN_VPP_PLUGIN
-  name->type = HNT_CONTIGUOUS_V6;
-  name->len = HICN_V6_NAME_LEN;
-#endif /* HICN_VPP_PLUGIN */
-  return CHILD_OPS (get_interest_name_suffix, type, h, &(name->ip6.suffix));
+  name->prefix.v6 = h->ipv6.daddr;
+  return CHILD_OPS (get_interest_name_suffix, type, h, &(name->suffix));
 }
 
 int
 ipv6_set_interest_name (hicn_type_t type, hicn_protocol_t *h,
 			const hicn_name_t *name)
 {
-  h->ipv6.daddr = name->ip6.prefix_as_ip6;
-  return CHILD_OPS (set_interest_name_suffix, type, h, &(name->ip6.suffix));
+  h->ipv6.daddr = name->prefix.v6;
+  return CHILD_OPS (set_interest_name_suffix, type, h, &(name->suffix));
 }
 
 int
@@ -97,6 +93,12 @@ ipv6_set_interest_name_suffix (hicn_type_t type, hicn_protocol_t *h,
 }
 
 int
+ipv6_is_interest (hicn_type_t type, const hicn_protocol_t *h, int *is_interest)
+{
+  return CHILD_OPS (is_interest, type, h, is_interest);
+}
+
+int
 ipv6_mark_packet_as_interest (hicn_type_t type, hicn_protocol_t *h)
 {
   return CHILD_OPS (mark_packet_as_interest, type, h);
@@ -119,17 +121,17 @@ ipv6_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t *h)
 
 int
 ipv6_get_data_locator (hicn_type_t type, const hicn_protocol_t *h,
-		       ip46_address_t *ip_address)
+		       ip_address_t *ip_address)
 {
-  ip_address->ip6 = h->ipv6.daddr;
+  ip_address->v6 = h->ipv6.daddr;
   return HICN_LIB_ERROR_NONE;
 }
 
 int
 ipv6_set_data_locator (hicn_type_t type, hicn_protocol_t *h,
-		       const ip46_address_t *ip_address)
+		       const ip_address_t *ip_address)
 {
-  h->ipv6.daddr = ip_address->ip6;
+  h->ipv6.daddr = ip_address->v6;
   return HICN_LIB_ERROR_NONE;
 }
 
@@ -137,20 +139,16 @@ int
 ipv6_get_data_name (hicn_type_t type, const hicn_protocol_t *h,
 		    hicn_name_t *name)
 {
-  name->ip6.prefix_as_ip6 = h->ipv6.saddr;
-#ifndef HICN_VPP_PLUGIN
-  name->type = HNT_CONTIGUOUS_V6;
-  name->len = HICN_V6_NAME_LEN;
-#endif /* HICN_VPP_PLUGIN */
-  return CHILD_OPS (get_data_name_suffix, type, h, &(name->ip6.suffix));
+  name->prefix.v6 = h->ipv6.saddr;
+  return CHILD_OPS (get_data_name_suffix, type, h, &(name->suffix));
 }
 
 int
 ipv6_set_data_name (hicn_type_t type, hicn_protocol_t *h,
 		    const hicn_name_t *name)
 {
-  h->ipv6.saddr = name->ip6.prefix_as_ip6;
-  return CHILD_OPS (set_data_name_suffix, type, h, &(name->ip6.suffix));
+  h->ipv6.saddr = name->prefix.v6;
+  return CHILD_OPS (set_data_name_suffix, type, h, &(name->suffix));
 }
 
 int
@@ -281,24 +279,23 @@ ipv6_verify_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
 
 int
 ipv6_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
-		       const ip46_address_t *addr_new,
-		       ip46_address_t *addr_old)
+		       const ip_address_t *addr_new, ip_address_t *addr_old)
 {
   // ASSERT(addr_old == NULL);
-  addr_old->ip6 = h->ipv6.saddr;
-  h->ipv6.saddr = addr_new->ip6;
+  addr_old->v6 = h->ipv6.saddr;
+  h->ipv6.saddr = addr_new->v6;
 
   return CHILD_OPS (rewrite_interest, type, h, addr_new, addr_old);
 }
 
 int
 ipv6_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
-		   const ip46_address_t *addr_new, ip46_address_t *addr_old,
+		   const ip_address_t *addr_new, ip_address_t *addr_old,
 		   const hicn_faceid_t face_id, u8 reset_pl)
 {
   // ASSERT(addr_old == NULL);
-  addr_old->ip6 = h->ipv6.daddr;
-  h->ipv6.daddr = addr_new->ip6;
+  addr_old->v6 = h->ipv6.daddr;
+  h->ipv6.daddr = addr_new->v6;
 
   return CHILD_OPS (rewrite_data, type, h, addr_new, addr_old, face_id,
 		    reset_pl);
@@ -357,6 +354,20 @@ ipv6_set_payload_length (hicn_type_t type, hicn_protocol_t *h,
 }
 
 int
+ipv6_get_payload_type (hicn_type_t type, const hicn_protocol_t *h,
+		       hicn_payload_type_t *payload_type)
+{
+  return CHILD_OPS (get_payload_type, type, h, payload_type);
+}
+
+int
+ipv6_set_payload_type (hicn_type_t type, hicn_protocol_t *h,
+		       hicn_payload_type_t payload_type)
+{
+  return CHILD_OPS (set_payload_type, type, h, payload_type);
+}
+
+int
 ipv6_get_signature_size (hicn_type_t type, const hicn_protocol_t *h,
 			 size_t *signature_size)
 {
@@ -371,16 +382,17 @@ ipv6_set_signature_size (hicn_type_t type, hicn_protocol_t *h,
 }
 
 int
-ipv6_set_signature_gap (hicn_type_t type, hicn_protocol_t *h, uint8_t gap)
+ipv6_set_signature_padding (hicn_type_t type, hicn_protocol_t *h,
+			    size_t padding)
 {
-  return CHILD_OPS (set_signature_gap, type, h, gap);
+  return CHILD_OPS (set_signature_padding, type, h, padding);
 }
 
 int
-ipv6_get_signature_gap (hicn_type_t type, const hicn_protocol_t *h,
-			uint8_t *gap)
+ipv6_get_signature_padding (hicn_type_t type, const hicn_protocol_t *h,
+			    size_t *padding)
 {
-  return CHILD_OPS (get_signature_gap, type, h, gap);
+  return CHILD_OPS (get_signature_padding, type, h, padding);
 }
 
 int
@@ -430,6 +442,18 @@ ipv6_get_signature (hicn_type_t type, hicn_protocol_t *h, uint8_t **signature)
   return CHILD_OPS (get_signature, type, h, signature);
 }
 
+int
+ipv6_is_last_data (hicn_type_t type, const hicn_protocol_t *h, int *is_last)
+{
+  return CHILD_OPS (is_last_data, type, h, is_last);
+}
+
+int
+ipv6_set_last_data (hicn_type_t type, hicn_protocol_t *h)
+{
+  return CHILD_OPS (set_last_data, type, h);
+}
+
 DECLARE_HICN_OPS (ipv6);
 
 /*
diff --git a/lib/src/protocol/new.c b/lib/src/protocol/new.c
new file mode 100644
index 000000000..8c79963ad
--- /dev/null
+++ b/lib/src/protocol/new.c
@@ -0,0 +1,441 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <hicn/common.h>
+#include <hicn/error.h>
+#include <hicn/ops.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+
+static int
+is_interest (u8 flags)
+{
+  return flags & HICN_NEW_FLAG_INT;
+}
+
+int
+new_init_packet_header (hicn_type_t type, hicn_protocol_t *h)
+{
+  memset (&h->newhdr, 0, sizeof (h->newhdr));
+  _set_new_header_version (&h->newhdr);
+  uint8_t ah_flag = type.l2 == IPPROTO_AH ? HICN_NEW_FLAG_SIG : 0;
+  h->newhdr.flags |= ah_flag;
+
+  return CHILD_OPS (init_packet_header, type, h);
+}
+
+int
+new_is_interest (hicn_type_t type, const hicn_protocol_t *h, int *is_interest)
+{
+  *is_interest = (h->newhdr.flags & HICN_NEW_FLAG_INT) != 0;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_mark_packet_as_interest (hicn_type_t type, hicn_protocol_t *h)
+{
+  h->newhdr.flags |= HICN_NEW_FLAG_INT;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_mark_packet_as_data (hicn_type_t type, hicn_protocol_t *h)
+{
+  h->newhdr.flags &= ~HICN_NEW_FLAG_INT;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_interest_locator (hicn_type_t type, const hicn_protocol_t *h,
+			  ip_address_t *ip_address)
+{
+  assert (is_interest (h->newhdr.flags));
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_interest_locator (hicn_type_t type, hicn_protocol_t *h,
+			  const ip_address_t *ip_address)
+{
+  assert (is_interest (h->newhdr.flags));
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_interest_name (hicn_type_t type, const hicn_protocol_t *h,
+		       hicn_name_t *name)
+{
+  assert (is_interest (h->newhdr.flags));
+  name->prefix = h->newhdr.prefix;
+  name->suffix = ntohl (h->newhdr.suffix);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_interest_name (hicn_type_t type, hicn_protocol_t *h,
+		       const hicn_name_t *name)
+{
+  int rc = new_mark_packet_as_interest (type, h);
+  if (rc)
+    return rc;
+
+  assert (is_interest (h->newhdr.flags));
+  h->newhdr.prefix = name->prefix;
+  h->newhdr.suffix = htonl (name->suffix);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_interest_name_suffix (hicn_type_t type, const hicn_protocol_t *h,
+			      hicn_name_suffix_t *suffix)
+{
+  assert (is_interest (h->newhdr.flags));
+  *suffix = ntohl (h->newhdr.suffix);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_interest_name_suffix (hicn_type_t type, hicn_protocol_t *h,
+			      const hicn_name_suffix_t *suffix)
+{
+  assert (is_interest (h->newhdr.flags));
+  h->newhdr.suffix = htonl (*suffix);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t *h)
+{
+  assert (is_interest (h->newhdr.flags));
+  return CHILD_OPS (init_packet_header, type, h);
+}
+
+int
+new_get_data_locator (hicn_type_t type, const hicn_protocol_t *h,
+		      ip_address_t *ip_address)
+{
+  assert (!is_interest (h->newhdr.flags));
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_data_locator (hicn_type_t type, hicn_protocol_t *h,
+		      const ip_address_t *ip_address)
+{
+  assert (!is_interest (h->newhdr.flags));
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_data_name (hicn_type_t type, const hicn_protocol_t *h,
+		   hicn_name_t *name)
+{
+  assert (!is_interest (h->newhdr.flags));
+  name->prefix = h->newhdr.prefix;
+  name->suffix = ntohl (h->newhdr.suffix);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_data_name (hicn_type_t type, hicn_protocol_t *h,
+		   const hicn_name_t *name)
+{
+  new_mark_packet_as_data (type, h);
+  assert (!is_interest (h->newhdr.flags));
+  h->newhdr.prefix = name->prefix;
+  h->newhdr.suffix = htonl (name->suffix);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_data_name_suffix (hicn_type_t type, const hicn_protocol_t *h,
+			  hicn_name_suffix_t *suffix)
+{
+  assert (!is_interest (h->newhdr.flags));
+  *suffix = ntohl (h->newhdr.suffix);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_data_name_suffix (hicn_type_t type, hicn_protocol_t *h,
+			  const hicn_name_suffix_t *suffix)
+{
+  assert (!is_interest (h->newhdr.flags));
+  h->newhdr.suffix = htonl (*suffix);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_data_pathlabel (hicn_type_t type, const hicn_protocol_t *h,
+			u32 *pathlabel)
+{
+  assert (!is_interest (h->newhdr.flags));
+  *pathlabel = h->newhdr.path_label;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_data_pathlabel (hicn_type_t type, hicn_protocol_t *h,
+			const u32 pathlabel)
+{
+  assert (!is_interest (h->newhdr.flags));
+  h->newhdr.path_label = pathlabel;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_update_data_pathlabel (hicn_type_t type, hicn_protocol_t *h,
+			   const hicn_faceid_t face_id)
+{
+  hicn_pathlabel_t new_pl;
+  update_pathlabel (h->newhdr.path_label, face_id, &new_pl);
+  h->newhdr.path_label = new_pl;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_reset_data_for_hash (hicn_type_t type, hicn_protocol_t *h)
+{
+  return CHILD_OPS (reset_data_for_hash, type, h);
+}
+
+int
+new_get_lifetime (hicn_type_t type, const hicn_protocol_t *h,
+		  hicn_lifetime_t *lifetime)
+{
+  *lifetime = ntohl (h->newhdr.lifetime);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_lifetime (hicn_type_t type, hicn_protocol_t *h,
+		  const hicn_lifetime_t lifetime)
+{
+  h->newhdr.lifetime = htonl (lifetime);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_update_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
+		      size_t payload_length)
+{
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_verify_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
+		      size_t payload_length)
+{
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
+		      const ip_address_t *addr_new, ip_address_t *addr_old)
+{
+  assert (is_interest (h->newhdr.flags));
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
+		  const ip_address_t *addr_new, ip_address_t *addr_old,
+		  const hicn_faceid_t face_id, u8 reset_pl)
+{
+  assert (!is_interest (h->newhdr.flags));
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_length (hicn_type_t type, const hicn_protocol_t *h,
+		size_t *header_length)
+{
+  *header_length = NEW_HDRLEN + ntohs (h->newhdr.payload_length);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_current_header_length (hicn_type_t type, const hicn_protocol_t *h,
+			       size_t *header_length)
+{
+  *header_length = NEW_HDRLEN;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_header_length (hicn_type_t type, const hicn_protocol_t *h,
+		       size_t *header_length)
+{
+  size_t child_header_length = 0;
+  int rc = CHILD_OPS (get_header_length, type, h, &child_header_length);
+  if (rc < 0)
+    return rc;
+  *header_length = NEW_HDRLEN + child_header_length;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_payload_length (hicn_type_t type, const hicn_protocol_t *h,
+			size_t *payload_length)
+{
+  size_t child_header_length = 0;
+  int rc = CHILD_OPS (get_header_length, type, h, &child_header_length);
+  if (rc < 0)
+    return rc;
+  *payload_length = ntohs (h->newhdr.payload_length) - child_header_length;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_payload_length (hicn_type_t type, hicn_protocol_t *h,
+			size_t payload_length)
+{
+  size_t child_header_length = 0;
+  int rc = CHILD_OPS (get_header_length, type, h, &child_header_length);
+  if (rc < 0)
+    return rc;
+  h->newhdr.payload_length =
+    htons ((u_short) (payload_length + child_header_length));
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_get_signature_size (hicn_type_t type, const hicn_protocol_t *h,
+			size_t *signature_size)
+{
+  return CHILD_OPS (get_signature_size, type, h, signature_size);
+}
+
+int
+new_set_signature_size (hicn_type_t type, hicn_protocol_t *h,
+			size_t signature_size)
+{
+  return CHILD_OPS (set_signature_size, type, h, signature_size);
+}
+
+int
+new_set_signature_padding (hicn_type_t type, hicn_protocol_t *h,
+			   size_t padding)
+{
+  return CHILD_OPS (set_signature_padding, type, h, padding);
+}
+
+int
+new_get_signature_padding (hicn_type_t type, const hicn_protocol_t *h,
+			   size_t *padding)
+{
+  return CHILD_OPS (get_signature_padding, type, h, padding);
+}
+
+int
+new_set_signature_timestamp (hicn_type_t type, hicn_protocol_t *h,
+			     uint64_t signature_timestamp)
+{
+  return CHILD_OPS (set_signature_timestamp, type, h, signature_timestamp);
+}
+
+int
+new_get_signature_timestamp (hicn_type_t type, const hicn_protocol_t *h,
+			     uint64_t *signature_timestamp)
+{
+  return CHILD_OPS (get_signature_timestamp, type, h, signature_timestamp);
+}
+
+int
+new_set_validation_algorithm (hicn_type_t type, hicn_protocol_t *h,
+			      uint8_t validation_algorithm)
+{
+  return CHILD_OPS (set_validation_algorithm, type, h, validation_algorithm);
+}
+
+int
+new_get_validation_algorithm (hicn_type_t type, const hicn_protocol_t *h,
+			      uint8_t *validation_algorithm)
+{
+  return CHILD_OPS (get_validation_algorithm, type, h, validation_algorithm);
+}
+
+int
+new_set_key_id (hicn_type_t type, hicn_protocol_t *h, uint8_t *key_id)
+{
+  return CHILD_OPS (set_key_id, type, h, key_id);
+}
+
+int
+new_get_key_id (hicn_type_t type, hicn_protocol_t *h, uint8_t **key_id,
+		uint8_t *key_id_size)
+{
+  return CHILD_OPS (get_key_id, type, h, key_id, key_id_size);
+}
+
+int
+new_get_signature (hicn_type_t type, hicn_protocol_t *h, uint8_t **signature)
+{
+  return CHILD_OPS (get_signature, type, h, signature);
+}
+
+int
+new_get_payload_type (hicn_type_t type, const hicn_protocol_t *h,
+		      hicn_payload_type_t *payload_type)
+{
+  *payload_type = ((h->newhdr.flags & HICN_NEW_FLAG_MAN) == HICN_NEW_FLAG_MAN);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_payload_type (hicn_type_t type, hicn_protocol_t *h,
+		      hicn_payload_type_t payload_type)
+{
+  if (payload_type != HPT_DATA && payload_type != HPT_MANIFEST)
+    return HICN_LIB_ERROR_INVALID_PARAMETER;
+
+  if (payload_type)
+    h->newhdr.flags |= HICN_NEW_FLAG_MAN;
+  else
+    h->newhdr.flags &= ~HICN_NEW_FLAG_MAN;
+
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_is_last_data (hicn_type_t type, const hicn_protocol_t *h, int *is_last)
+{
+  assert (!is_interest (h->newhdr.flags));
+  *is_last = h->newhdr.flags & HICN_NEW_FLAG_LST;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+new_set_last_data (hicn_type_t type, hicn_protocol_t *h)
+{
+  assert (!is_interest (h->newhdr.flags));
+  h->newhdr.flags |= HICN_NEW_FLAG_LST;
+  return HICN_LIB_ERROR_NONE;
+}
+
+DECLARE_HICN_OPS (new);
+
+#pragma GCC diagnostic pop
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/lib/src/protocol/tcp.c b/lib/src/protocol/tcp.c
index cfeac1907..8097cfd12 100644
--- a/lib/src/protocol/tcp.c
+++ b/lib/src/protocol/tcp.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -44,7 +44,20 @@ DECLARE_get_length (tcp, UNEXPECTED);
 DECLARE_get_payload_length (tcp, UNEXPECTED);
 DECLARE_set_payload_length (tcp, UNEXPECTED);
 
-always_inline int
+static inline void
+reset_for_hash (hicn_protocol_t *h)
+{
+  h->tcp.sport = 0;
+  h->tcp.dport = 0;
+  h->tcp.seq_ack = 0;
+  h->tcp.data_offset_and_reserved = 0;
+  h->tcp.flags = 0;
+  h->tcp.window = 0;
+  h->tcp.csum = 0;
+  h->tcp.urg_ptr = 0;
+}
+
+static inline int
 check_tcp_checksum (u16 csum)
 {
   /* As per RFC1624
@@ -92,6 +105,20 @@ tcp_init_packet_header (hicn_type_t type, hicn_protocol_t *h)
 }
 
 int
+tcp_is_interest (hicn_type_t type, const hicn_protocol_t *h, int *is_interest)
+{
+  *is_interest = (h->tcp.flags & HICN_TCP_FLAG_ECE) == 0;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+tcp_mark_packet_as_interest (hicn_type_t type, hicn_protocol_t *h)
+{
+  h->tcp.flags &= ~HICN_TCP_FLAG_ECE;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
 tcp_get_interest_name_suffix (hicn_type_t type, const hicn_protocol_t *h,
 			      hicn_name_suffix_t *suffix)
 {
@@ -103,15 +130,12 @@ int
 tcp_set_interest_name_suffix (hicn_type_t type, hicn_protocol_t *h,
 			      const hicn_name_suffix_t *suffix)
 {
-  h->tcp.name_suffix = htonl (*suffix);
+  int rc = tcp_mark_packet_as_interest (type, h);
+  if (rc)
+    return rc;
 
-  return HICN_LIB_ERROR_NONE;
-}
+  h->tcp.name_suffix = htonl (*suffix);
 
-int
-tcp_mark_packet_as_interest (hicn_type_t type, hicn_protocol_t *h)
-{
-  h->tcp.flags &= ~HICN_TCP_FLAG_ECE;
   return HICN_LIB_ERROR_NONE;
 }
 
@@ -125,9 +149,7 @@ tcp_mark_packet_as_data (hicn_type_t type, hicn_protocol_t *h)
 int
 tcp_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t *h)
 {
-  memset (&(h->tcp), 0, 4);
-  memset (&(h->tcp.seq_ack), 0, 12);
-
+  reset_for_hash (h);
   return CHILD_OPS (reset_interest_for_hash, type, h);
 }
 
@@ -143,6 +165,10 @@ int
 tcp_set_data_name_suffix (hicn_type_t type, hicn_protocol_t *h,
 			  const hicn_name_suffix_t *suffix)
 {
+  int rc = tcp_mark_packet_as_data (type, h);
+  if (rc)
+    return rc;
+
   h->tcp.name_suffix = htonl (*suffix);
   return HICN_LIB_ERROR_NONE;
 }
@@ -181,9 +207,7 @@ tcp_update_data_pathlabel (hicn_type_t type, hicn_protocol_t *h,
 int
 tcp_reset_data_for_hash (hicn_type_t type, hicn_protocol_t *h)
 {
-  memset (&(h->tcp), 0, 4);
-  memset (&(h->tcp.seq_ack), 0, 12);
-
+  reset_for_hash (h);
   return CHILD_OPS (reset_data_for_hash, type, h);
 }
 
@@ -279,7 +303,7 @@ tcp_verify_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
 
 int
 tcp_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
-		      const ip46_address_t *addr_new, ip46_address_t *addr_old)
+		      const ip_address_t *addr_new, ip_address_t *addr_old)
 {
   u16 *tcp_checksum = &(h->tcp.csum);
   int ret = check_tcp_checksum (*tcp_checksum);
@@ -310,7 +334,7 @@ tcp_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
 
 int
 tcp_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
-		  const ip46_address_t *addr_new, ip46_address_t *addr_old,
+		  const ip_address_t *addr_new, ip_address_t *addr_old,
 		  const hicn_faceid_t face_id, u8 reset_pl)
 {
 
@@ -339,11 +363,11 @@ tcp_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
    * csum = ip_csum_add_even (csum, h->ipv4.saddr.as_u32);
    */
   ip_csum_t csum =
-    ip_csum_sub_even (*tcp_checksum, (ip_csum_t) (addr_old->ip6.as_u64[0]));
+    ip_csum_sub_even (*tcp_checksum, (ip_csum_t) (addr_old->v6.as_u64[0]));
   csum =
-    ip_csum_sub_even (*tcp_checksum, (ip_csum_t) (addr_old->ip6.as_u64[1]));
-  csum = ip_csum_add_even (csum, (ip_csum_t) (addr_new->ip6.as_u64[0]));
-  csum = ip_csum_add_even (csum, (ip_csum_t) (addr_new->ip6.as_u64[1]));
+    ip_csum_sub_even (*tcp_checksum, (ip_csum_t) (addr_old->v6.as_u64[1]));
+  csum = ip_csum_add_even (csum, (ip_csum_t) (addr_new->v6.as_u64[0]));
+  csum = ip_csum_add_even (csum, (ip_csum_t) (addr_new->v6.as_u64[1]));
 
   csum = ip_csum_sub_even (csum, old_pl);
   csum = ip_csum_add_even (csum, h->tcp.seq_ack);
@@ -389,16 +413,17 @@ tcp_set_signature_size (hicn_type_t type, hicn_protocol_t *h,
 }
 
 int
-tcp_set_signature_gap (hicn_type_t type, hicn_protocol_t *h, uint8_t gap)
+tcp_set_signature_padding (hicn_type_t type, hicn_protocol_t *h,
+			   size_t padding)
 {
-  return CHILD_OPS (set_signature_gap, type, h, gap);
+  return CHILD_OPS (set_signature_padding, type, h, padding);
 }
 
 int
-tcp_get_signature_gap (hicn_type_t type, const hicn_protocol_t *h,
-		       uint8_t *gap)
+tcp_get_signature_padding (hicn_type_t type, const hicn_protocol_t *h,
+			   size_t *padding)
 {
-  return CHILD_OPS (get_signature_gap, type, h, gap);
+  return CHILD_OPS (get_signature_padding, type, h, padding);
 }
 
 int
@@ -448,6 +473,43 @@ tcp_get_signature (hicn_type_t type, hicn_protocol_t *h, uint8_t **signature)
   return CHILD_OPS (get_signature, type, h, signature);
 }
 
+int
+tcp_get_payload_type (hicn_type_t type, const hicn_protocol_t *h,
+		      hicn_payload_type_t *payload_type)
+{
+  *payload_type = ((h->tcp.flags & HICN_TCP_FLAG_URG) == HICN_TCP_FLAG_URG);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+tcp_set_payload_type (hicn_type_t type, hicn_protocol_t *h,
+		      hicn_payload_type_t payload_type)
+{
+  if (payload_type != HPT_DATA && payload_type != HPT_MANIFEST)
+    return HICN_LIB_ERROR_INVALID_PARAMETER;
+
+  if (payload_type)
+    h->tcp.flags |= HICN_TCP_FLAG_URG;
+  else
+    h->tcp.flags &= ~HICN_TCP_FLAG_URG;
+
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+tcp_is_last_data (hicn_type_t type, const hicn_protocol_t *h, int *is_last)
+{
+  *is_last = (h->tcp.flags & HICN_TCP_FLAG_RST) == HICN_TCP_FLAG_RST;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+tcp_set_last_data (hicn_type_t type, hicn_protocol_t *h)
+{
+  h->tcp.flags |= HICN_TCP_FLAG_RST;
+  return HICN_LIB_ERROR_NONE;
+}
+
 DECLARE_HICN_OPS (tcp);
 
 /*
diff --git a/lib/src/protocol/udp.c b/lib/src/protocol/udp.c
new file mode 100644
index 000000000..ee46b8e9d
--- /dev/null
+++ b/lib/src/protocol/udp.c
@@ -0,0 +1,312 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <hicn/common.h>
+#include <hicn/error.h>
+#include <hicn/ops.h>
+
+#include <hicn/protocol/udp.h>
+
+DECLARE_get_interest_locator (udp, UNEXPECTED);
+DECLARE_set_interest_locator (udp, UNEXPECTED);
+DECLARE_get_interest_name (udp, UNEXPECTED);
+DECLARE_set_interest_name (udp, UNEXPECTED);
+DECLARE_get_data_locator (udp, UNEXPECTED);
+DECLARE_set_data_locator (udp, UNEXPECTED);
+DECLARE_get_data_name (udp, UNEXPECTED);
+DECLARE_set_data_name (udp, UNEXPECTED);
+DECLARE_get_payload_length (udp, UNEXPECTED);
+DECLARE_set_payload_length (udp, UNEXPECTED);
+
+int
+udp_init_packet_header (hicn_type_t type, hicn_protocol_t *h)
+{
+  size_t total_header_length;
+  int rc = CHILD_OPS (get_header_length, type, h, &total_header_length);
+  if (rc < 0)
+    return rc;
+
+  /* *INDENT-OFF* */
+  h->udp = (_udp_header_t){ .src_port = 0,
+			    .dst_port = 0,
+			    .length = htons ((u16) total_header_length),
+			    .checksum = 0 };
+  /* *INDENT-ON* */
+  return CHILD_OPS (init_packet_header, type, h);
+}
+
+int
+udp_get_interest_name_suffix (hicn_type_t type, const hicn_protocol_t *h,
+			      hicn_name_suffix_t *suffix)
+{
+  return CHILD_OPS (get_interest_name_suffix, type, h, suffix);
+}
+
+int
+udp_set_interest_name_suffix (hicn_type_t type, hicn_protocol_t *h,
+			      const hicn_name_suffix_t *suffix)
+{
+  return CHILD_OPS (set_interest_name_suffix, type, h, suffix);
+}
+
+int
+udp_is_interest (hicn_type_t type, const hicn_protocol_t *h, int *is_interest)
+{
+  return CHILD_OPS (is_interest, type, h, is_interest);
+}
+
+int
+udp_mark_packet_as_interest (hicn_type_t type, hicn_protocol_t *h)
+{
+  return CHILD_OPS (mark_packet_as_interest, type, h);
+}
+
+int
+udp_mark_packet_as_data (hicn_type_t type, hicn_protocol_t *h)
+{
+  return CHILD_OPS (mark_packet_as_data, type, h);
+}
+
+int
+udp_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t *h)
+{
+  return CHILD_OPS (reset_interest_for_hash, type, h);
+}
+
+int
+udp_get_data_name_suffix (hicn_type_t type, const hicn_protocol_t *h,
+			  hicn_name_suffix_t *suffix)
+{
+  return CHILD_OPS (get_data_name_suffix, type, h, suffix);
+}
+
+int
+udp_set_data_name_suffix (hicn_type_t type, hicn_protocol_t *h,
+			  const hicn_name_suffix_t *suffix)
+{
+  return CHILD_OPS (set_data_name_suffix, type, h, suffix);
+}
+
+int
+udp_get_data_pathlabel (hicn_type_t type, const hicn_protocol_t *h,
+			u32 *pathlabel)
+{
+  return CHILD_OPS (get_data_pathlabel, type, h, pathlabel);
+}
+
+int
+udp_set_data_pathlabel (hicn_type_t type, hicn_protocol_t *h,
+			const u32 pathlabel)
+{
+  return CHILD_OPS (set_data_pathlabel, type, h, pathlabel);
+}
+
+int
+udp_update_data_pathlabel (hicn_type_t type, hicn_protocol_t *h,
+			   const hicn_faceid_t face_id)
+{
+  return CHILD_OPS (update_data_pathlabel, type, h, face_id);
+}
+
+int
+udp_reset_data_for_hash (hicn_type_t type, hicn_protocol_t *h)
+{
+  return CHILD_OPS (reset_data_for_hash, type, h);
+}
+
+int
+udp_get_lifetime (hicn_type_t type, const hicn_protocol_t *h,
+		  hicn_lifetime_t *lifetime)
+{
+  return CHILD_OPS (get_lifetime, type, h, lifetime);
+}
+
+int
+udp_set_lifetime (hicn_type_t type, hicn_protocol_t *h,
+		  const hicn_lifetime_t lifetime)
+{
+  return CHILD_OPS (set_lifetime, type, h, lifetime);
+}
+
+int
+udp_update_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
+		      size_t payload_length)
+{
+  return CHILD_OPS (update_checksums, type, h, partial_csum, payload_length);
+}
+
+int
+udp_verify_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
+		      size_t payload_length)
+{
+  return CHILD_OPS (verify_checksums, type, h, partial_csum, payload_length);
+}
+
+int
+udp_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
+		      const ip_address_t *addr_new, ip_address_t *addr_old)
+{
+  return CHILD_OPS (rewrite_interest, type, h, addr_new, addr_old);
+}
+
+int
+udp_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
+		  const ip_address_t *addr_new, ip_address_t *addr_old,
+		  const hicn_faceid_t face_id, u8 reset_pl)
+{
+  return CHILD_OPS (rewrite_data, type, h, addr_new, addr_old, face_id,
+		    reset_pl);
+}
+
+int
+udp_get_length (hicn_type_t type, const hicn_protocol_t *h,
+		size_t *header_length)
+{
+  *header_length = IPV6_HDRLEN + ntohs (h->ipv6.len);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+udp_get_current_header_length (hicn_type_t type, const hicn_protocol_t *h,
+			       size_t *header_length)
+{
+  *header_length = UDP_HDRLEN;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+udp_get_header_length (hicn_type_t type, const hicn_protocol_t *h,
+		       size_t *header_length)
+{
+  size_t child_header_length = 0;
+  int rc = CHILD_OPS (get_header_length, type, h, &child_header_length);
+  if (rc < 0)
+    return rc;
+  *header_length = UDP_HDRLEN + child_header_length;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+udp_get_payload_type (hicn_type_t type, const hicn_protocol_t *h,
+		      hicn_payload_type_t *payload_type)
+{
+  return CHILD_OPS (get_payload_type, type, h, payload_type);
+}
+
+int
+udp_set_payload_type (hicn_type_t type, hicn_protocol_t *h,
+		      hicn_payload_type_t payload_type)
+{
+  return CHILD_OPS (set_payload_type, type, h, payload_type);
+}
+
+int
+udp_get_signature_size (hicn_type_t type, const hicn_protocol_t *h,
+			size_t *signature_size)
+{
+  return CHILD_OPS (get_signature_size, type, h, signature_size);
+}
+
+int
+udp_set_signature_size (hicn_type_t type, hicn_protocol_t *h,
+			size_t signature_size)
+{
+  return CHILD_OPS (set_signature_size, type, h, signature_size);
+}
+
+int
+udp_set_signature_padding (hicn_type_t type, hicn_protocol_t *h,
+			   size_t padding)
+{
+  return CHILD_OPS (set_signature_padding, type, h, padding);
+}
+
+int
+udp_get_signature_padding (hicn_type_t type, const hicn_protocol_t *h,
+			   size_t *padding)
+{
+  return CHILD_OPS (get_signature_padding, type, h, padding);
+}
+
+int
+udp_set_signature_timestamp (hicn_type_t type, hicn_protocol_t *h,
+			     uint64_t signature_timestamp)
+{
+  return CHILD_OPS (set_signature_timestamp, type, h, signature_timestamp);
+}
+
+int
+udp_get_signature_timestamp (hicn_type_t type, const hicn_protocol_t *h,
+			     uint64_t *signature_timestamp)
+{
+  return CHILD_OPS (get_signature_timestamp, type, h, signature_timestamp);
+}
+
+int
+udp_set_validation_algorithm (hicn_type_t type, hicn_protocol_t *h,
+			      uint8_t validation_algorithm)
+{
+  return CHILD_OPS (set_validation_algorithm, type, h, validation_algorithm);
+}
+
+int
+udp_get_validation_algorithm (hicn_type_t type, const hicn_protocol_t *h,
+			      uint8_t *validation_algorithm)
+{
+  return CHILD_OPS (get_validation_algorithm, type, h, validation_algorithm);
+}
+
+int
+udp_set_key_id (hicn_type_t type, hicn_protocol_t *h, uint8_t *key_id)
+{
+  return CHILD_OPS (set_key_id, type, h, key_id);
+}
+
+int
+udp_get_key_id (hicn_type_t type, hicn_protocol_t *h, uint8_t **key_id,
+		uint8_t *key_id_size)
+{
+  return CHILD_OPS (get_key_id, type, h, key_id, key_id_size);
+}
+
+int
+udp_get_signature (hicn_type_t type, hicn_protocol_t *h, uint8_t **signature)
+{
+  return CHILD_OPS (get_signature, type, h, signature);
+}
+
+int
+udp_is_last_data (hicn_type_t type, const hicn_protocol_t *h, int *is_last)
+{
+  return CHILD_OPS (is_last_data, type, h, is_last);
+}
+
+int
+udp_set_last_data (hicn_type_t type, hicn_protocol_t *h)
+{
+  return CHILD_OPS (set_last_data, type, h);
+}
+
+DECLARE_HICN_OPS (udp);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/lib/src/strategy.c b/lib/src/strategy.c
new file mode 100644
index 000000000..3b797664a
--- /dev/null
+++ b/lib/src/strategy.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <hicn/strategy.h>
+
+const char *strategy_str[] = {
+#define _(x) [STRATEGY_TYPE_##x] = #x,
+  foreach_strategy_type
+#undef _
+};
\ No newline at end of file
diff --git a/lib/src/test/CMakeLists.txt b/lib/src/test/CMakeLists.txt
new file mode 100644
index 000000000..3e3c025c7
--- /dev/null
+++ b/lib/src/test/CMakeLists.txt
@@ -0,0 +1,47 @@
+# Copyright (c) 2021-2022 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+find_package(Threads REQUIRED)
+
+##############################################################
+# Test sources
+##############################################################
+list(APPEND TESTS_SRC
+  main.cc
+  test_name.cc
+  test_new_header.cc
+  test_udp_header.cc
+  test_validation.cc
+)
+
+##############################################################
+# Build single unit test executable and add it to test list
+##############################################################
+build_executable(lib_tests
+  NO_INSTALL
+  SOURCES ${TESTS_SRC}
+  LINK_LIBRARIES
+    PRIVATE ${LIBHICN_STATIC}
+    PRIVATE ${GTEST_LIBRARIES}
+    PRIVATE ${CMAKE_THREAD_LIBS_INIT}
+  INCLUDE_DIRS
+    PRIVATE ${Libhicn_INCLUDE_DIRS}
+    PRIVATE ${GTEST_INCLUDE_DIRS}
+  DEPENDS gtest ${LIBHICN_SHARED}
+  COMPONENT ${LIBHICN_COMPONENT}
+  DEFINITIONS ${COMPILER_DEFINITIONS}
+  COMPILE_OPTIONS ${DEFAULT_COMPILER_OPTIONS}
+  LINK_FLAGS ${LINK_FLAGS}
+)
+
+add_test_internal(lib_tests)
diff --git a/lib/src/test/main.cc b/lib/src/test/main.cc
new file mode 100644
index 000000000..042fcd6c0
--- /dev/null
+++ b/lib/src/test/main.cc
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+int
+main (int argc, char **argv)
+{
+  ::testing::InitGoogleTest (&argc, argv);
+  return RUN_ALL_TESTS ();
+}
diff --git a/lib/src/test/test_name.cc b/lib/src/test/test_name.cc
new file mode 100644
index 000000000..207725adb
--- /dev/null
+++ b/lib/src/test/test_name.cc
@@ -0,0 +1,339 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+extern "C"
+{
+#include <hicn/name.h>
+#include <hicn/common.h>
+#include <hicn/error.h>
+}
+
+class NameTest : public ::testing::Test
+{
+protected:
+  const char *ipv6_prefix = "b001::abcd:1234:abcd:1234";
+  const char *ipv4_prefix = "12.13.14.15";
+  const uint32_t suffix = 12345;
+
+  NameTest () : name_{}, name4_{}, name6_{}
+  {
+    int rc = inet_pton (AF_INET6, ipv6_prefix, &ipv6_prefix_bytes.v6);
+    EXPECT_EQ (rc, 1);
+
+    rc = inet_pton (AF_INET, ipv4_prefix, &ipv4_prefix_bytes.v4);
+    EXPECT_EQ (rc, 1);
+
+    rc = hicn_name_create (ipv4_prefix, suffix, &name4_);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+    rc = hicn_name_create (ipv6_prefix, suffix, &name6_);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  }
+
+  virtual ~NameTest () {}
+
+  void
+  nameHashTest (const char *prefix)
+  {
+    // Create 2 names
+    uint32_t suffix = 13579;
+    hicn_name_t name_a, name_b;
+    int rc = hicn_name_create (prefix, suffix, &name_a);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+    rc = hicn_name_create (prefix, suffix, &name_b);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+    // The hash should be equal, with and without considering the suffix
+    uint32_t hash_a, hash_b;
+    rc = hicn_name_hash (&name_a, &hash_a, 1);
+    EXPECT_EQ (rc, 0);
+    rc = hicn_name_hash (&name_b, &hash_b, 1);
+    EXPECT_EQ (rc, 0);
+    EXPECT_EQ (hash_a, hash_b);
+
+    rc = hicn_name_hash (&name_a, &hash_a, 0);
+    EXPECT_EQ (rc, 0);
+    rc = hicn_name_hash (&name_b, &hash_b, 0);
+    EXPECT_EQ (rc, 0);
+    EXPECT_EQ (hash_a, hash_b);
+
+    // Now let's change the suffix
+    rc = hicn_name_set_seq_number (&name_a, 97531);
+    // They should result equal if we do not consider the suffix
+    rc = hicn_name_hash (&name_a, &hash_a, 0);
+    EXPECT_EQ (rc, 0);
+    rc = hicn_name_hash (&name_b, &hash_b, 0);
+    EXPECT_EQ (rc, 0);
+    EXPECT_EQ (hash_a, hash_b);
+
+    // And different if we consider it
+    rc = hicn_name_hash (&name_a, &hash_a, 1);
+    EXPECT_EQ (rc, 0);
+    rc = hicn_name_hash (&name_b, &hash_b, 1);
+    EXPECT_EQ (rc, 0);
+    EXPECT_NE (hash_a, hash_b);
+  }
+
+  void
+  nameCopyTest (const char *prefix)
+  {
+    uint32_t suffix = 13579;
+    hicn_name_t name_a, name_b;
+    int rc = hicn_name_create (prefix, suffix, &name_a);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+    rc = hicn_name_copy (&name_b, &name_a);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+    rc = hicn_name_compare (&name_a, &name_b, 1);
+    EXPECT_EQ (rc, 0);
+  }
+
+  void
+  nameCompareTest (const char *prefix)
+  {
+    // Create 2 names
+    uint32_t suffix = 13579;
+    hicn_name_t name_a, name_b;
+    int rc = hicn_name_create (prefix, suffix, &name_a);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+    rc = hicn_name_create (prefix, suffix, &name_b);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+    // They should be equal, with and without considering the suffix
+    rc = hicn_name_compare (&name_a, &name_b, 1);
+    EXPECT_EQ (rc, 0);
+    rc = hicn_name_compare (&name_a, &name_b, 0);
+    EXPECT_EQ (rc, 0);
+
+    // Now let's change the suffix
+    rc = hicn_name_set_seq_number (&name_a, 97531);
+    // They should result equal if we do not consider the suffix
+    rc = hicn_name_compare (&name_a, &name_b, 0);
+    EXPECT_EQ (rc, 0);
+    // And different if we consider the suffix
+    rc = hicn_name_compare (&name_a, &name_b, 1);
+    EXPECT_NE (rc, 0);
+  }
+
+  void
+  nameFromIpPrefixTest (const ip_prefix_t &ip_prefix)
+  {
+    uint32_t suffix = 54321;
+    hicn_name_t name;
+    int rc = hicn_name_create_from_ip_prefix (&ip_prefix, suffix, &name);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+    rc = memcmp (ip_prefix.address.v6.as_u8, name.prefix.v6.as_u8,
+		 sizeof (name.prefix.v6));
+    EXPECT_EQ (rc, 0);
+    EXPECT_EQ (suffix, name.suffix);
+  }
+
+  void
+  nameToIpPrefixTest (const char *prefix)
+  {
+    uint32_t suffix = 54321;
+    hicn_name_t name;
+    int rc = hicn_name_create (prefix, suffix, &name);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+    // Get family
+    int family;
+    rc = hicn_name_get_family (&name, &family);
+
+    ip_prefix_t ip_prefix;
+    rc = hicn_name_to_ip_prefix (&name, &ip_prefix);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+    EXPECT_EQ (ip_prefix.family, family);
+    rc = ip_address_cmp (&ip_prefix.address, &name.prefix, AF_INET6);
+    EXPECT_EQ (rc, 0);
+  }
+
+  hicn_name_t name_, name4_, name6_;
+  ip_address_t ipv6_prefix_bytes, ipv4_prefix_bytes;
+};
+
+/**
+ * Name Initialization
+ */
+TEST_F (NameTest, NameInitialization)
+{
+  EXPECT_TRUE (_is_unspec (&name_));
+  uint32_t suffix = 12345;
+
+  // Initialize ipv6 name
+  hicn_name_t name6;
+  int rc = hicn_name_create (ipv6_prefix, suffix, &name6);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Check name is correctly created
+  rc = ip_address_cmp (&name6.prefix, &ipv6_prefix_bytes, AF_INET6);
+  EXPECT_EQ (rc, 0);
+  EXPECT_EQ (name6.suffix, suffix);
+
+  // Initialize ipv4 name
+  hicn_name_t name4;
+  rc = hicn_name_create (ipv4_prefix, suffix, &name4);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Check name is correctly created
+  rc = ip_address_cmp (&name4.prefix, &ipv4_prefix_bytes, AF_INET);
+  EXPECT_EQ (name4.prefix.pad[0], 0UL);
+  EXPECT_EQ (name4.prefix.pad[1], 0UL);
+  EXPECT_EQ (name4.prefix.pad[2], 0UL);
+  EXPECT_EQ (rc, 0);
+  EXPECT_EQ (name4.suffix, suffix);
+
+  // Try also to reuse previously initialized name
+  rc = hicn_name_create (ipv4_prefix, suffix, &name6);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Check name is correctly created
+  rc = ip_address_cmp (&name6.prefix, &ipv4_prefix_bytes, AF_INET);
+  EXPECT_EQ (name6.prefix.pad[0], 0UL);
+  EXPECT_EQ (name6.prefix.pad[1], 0UL);
+  EXPECT_EQ (name6.prefix.pad[2], 0UL);
+  EXPECT_EQ (rc, 0);
+  EXPECT_EQ (name6.suffix, suffix);
+}
+
+/**
+ * Name from ip prefix
+ */
+TEST_F (NameTest, NameFromIpPrefix6)
+{
+  ip_prefix_t ip_prefix = { .family = AF_INET6, .address = {}, .len = 64 };
+
+  ip_prefix.address.v6.as_u64[0] = ipv6_prefix_bytes.v6.as_u64[0];
+  ip_prefix.address.v6.as_u64[1] = ipv6_prefix_bytes.v6.as_u64[1];
+
+  nameFromIpPrefixTest (ip_prefix);
+}
+
+TEST_F (NameTest, NameFromIpPrefix4)
+{
+  ip_prefix_t ip_prefix = { .family = AF_INET, .address = {}, .len = 64 };
+  ip_prefix.address.v4.as_u32 = ipv4_prefix_bytes.v4.as_u32;
+  ip_prefix.address.pad[0] = 0;
+  ip_prefix.address.pad[1] = 0;
+  ip_prefix.address.pad[2] = 0;
+  nameFromIpPrefixTest (ip_prefix);
+}
+
+TEST_F (NameTest, NameCompare6) { nameCompareTest (ipv6_prefix); }
+
+TEST_F (NameTest, NameCompare4) { nameCompareTest (ipv4_prefix); }
+
+TEST_F (NameTest, NameHash6) { nameHashTest (ipv6_prefix); }
+
+TEST_F (NameTest, NameHash4) { nameHashTest (ipv4_prefix); }
+
+TEST_F (NameTest, NameEmpty)
+{
+  int rc = hicn_name_empty (&name_);
+  EXPECT_EQ (rc, 1);
+
+  name_.prefix.v6 = ipv6_prefix_bytes.v6;
+  rc = hicn_name_empty (&name_);
+  EXPECT_EQ (rc, 0);
+}
+
+TEST_F (NameTest, NameCopy6) { nameCopyTest (ipv6_prefix); }
+
+TEST_F (NameTest, NameCopy4) { nameCopyTest (ipv4_prefix); }
+
+TEST_F (NameTest, NameCopyToDestination)
+{
+  ip4_address_t dst4;
+  ip6_address_t dst6;
+
+  // Copy names to destination
+  int rc = hicn_name_copy_prefix_to_destination (dst4.as_u8, &name4_);
+  EXPECT_EQ (rc, 0);
+  rc = hicn_name_copy_prefix_to_destination (dst6.as_u8, &name6_);
+  EXPECT_EQ (rc, 0);
+
+  // Check copy succeeded
+  EXPECT_TRUE (dst4.as_u32 == name4_.prefix.v4.as_u32);
+  EXPECT_TRUE (dst6.as_u64[0] == name6_.prefix.v6.as_u64[0]);
+  EXPECT_TRUE (dst6.as_u64[1] == name6_.prefix.v6.as_u64[1]);
+}
+
+TEST_F (NameTest, SetGetSuffix)
+{
+  uint32_t suffix2 = 55555, suffix_ret;
+
+  // Check if suffix is correct
+  int rc = hicn_name_get_seq_number (&name6_, &suffix_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (suffix, suffix_ret);
+
+  // Set new suffix
+  rc = hicn_name_set_seq_number (&name6_, suffix2);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Check suffix was set
+  rc = hicn_name_get_seq_number (&name6_, &suffix_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (suffix2, suffix_ret);
+}
+
+TEST_F (NameTest, NameToSockAddr)
+{
+  struct sockaddr_in saddr4;
+  struct sockaddr_in6 saddr6;
+
+  int rc =
+    hicn_name_to_sockaddr_address (&name6_, (struct sockaddr *) (&saddr6));
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  rc = memcmp (name6_.prefix.v6.as_u8, saddr6.sin6_addr.s6_addr,
+	       sizeof (name6_.prefix.v6));
+  EXPECT_EQ (rc, 0);
+
+  rc = hicn_name_to_sockaddr_address (&name4_, (struct sockaddr *) (&saddr4));
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (name4_.prefix.v4.as_u32, saddr4.sin_addr.s_addr);
+}
+
+TEST_F (NameTest, NameToIpPrefix)
+{
+  nameToIpPrefixTest (ipv4_prefix);
+  nameToIpPrefixTest (ipv6_prefix);
+}
+
+TEST_F (NameTest, NameNToP)
+{
+  char dst[128];
+
+  // V6
+  int rc = hicn_name_ntop (&name6_, dst, 128);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Build expected name
+  std::stringstream expected6;
+  expected6 << ipv6_prefix << "|" << suffix;
+
+  rc = strcmp (dst, expected6.str ().c_str ());
+  EXPECT_EQ (rc, 0);
+
+  // V4
+  rc = hicn_name_ntop (&name4_, dst, 128);
+  std::stringstream expected4;
+  expected4 << ipv4_prefix << "|" << suffix;
+
+  rc = strcmp (dst, expected4.str ().c_str ());
+  EXPECT_EQ (rc, 0);
+}
diff --git a/lib/src/test/test_new_header.cc b/lib/src/test/test_new_header.cc
new file mode 100644
index 000000000..33c9e13c9
--- /dev/null
+++ b/lib/src/test/test_new_header.cc
@@ -0,0 +1,340 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+extern "C"
+{
+#include <hicn/name.h>
+#include <hicn/common.h>
+#include <hicn/error.h>
+#include <hicn/protocol/new.h>
+#include <hicn/protocol/ah.h>
+#include <hicn/header.h>
+#include <hicn/compat.h>
+}
+
+class NewHeaderTest : public ::testing::Test
+{
+protected:
+  const char *ipv6_prefix = "b001::abcd:1234:abcd:1234";
+  const char *ipv4_prefix = "12.13.14.15";
+  const uint32_t suffix = 12345;
+
+  NewHeaderTest (size_t hdr_size, hicn_format_t format)
+      : buffer_ (new uint8_t[hdr_size]), header_ ((hicn_header_t *) (buffer_)),
+	format_ (format), name_{}, name4_{}, name6_{}
+  {
+    int rc = inet_pton (AF_INET6, ipv6_prefix, &ipv6_prefix_bytes.v6);
+    EXPECT_EQ (rc, 1);
+
+    rc = inet_pton (AF_INET, ipv4_prefix, &ipv4_prefix_bytes.v4);
+    EXPECT_EQ (rc, 1);
+
+    rc = hicn_name_create (ipv4_prefix, suffix, &name4_);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+    rc = hicn_name_create (ipv6_prefix, suffix, &name6_);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  }
+
+  NewHeaderTest () : NewHeaderTest (NEW_HDRLEN, HF_NEW) {}
+
+  virtual ~NewHeaderTest () { delete[] buffer_; }
+
+  void
+  checkCommon (const _new_header_t *new_hdr)
+  {
+    // Initialize header
+    int rc = hicn_packet_init_header (format_, header_);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+    // Check fields
+    EXPECT_EQ (new_hdr->prefix.v6.as_u64[0], 0UL);
+    EXPECT_EQ (new_hdr->prefix.v6.as_u64[1], 0UL);
+    EXPECT_EQ (new_hdr->suffix, 0UL);
+    EXPECT_EQ (new_hdr->lifetime, 0UL);
+    EXPECT_EQ (new_hdr->path_label, 0UL);
+    EXPECT_EQ (new_hdr->payload_length, 0UL);
+    EXPECT_EQ (_get_new_header_version (new_hdr), 0x9);
+  }
+
+  virtual void
+  SetUp () override
+  {
+    auto new_hdr = &header_->protocol.newhdr;
+    checkCommon (new_hdr);
+    EXPECT_EQ (new_hdr->flags, 0);
+  }
+
+  uint8_t *buffer_;
+  hicn_header_t *header_;
+  hicn_format_t format_;
+  hicn_name_t name_, name4_, name6_;
+  ip_address_t ipv6_prefix_bytes, ipv4_prefix_bytes;
+};
+
+class NewHeaderAHTest : public NewHeaderTest
+{
+protected:
+  NewHeaderAHTest () : NewHeaderTest (NEW_HDRLEN + AH_HDRLEN, HF_NEW_AH) {}
+
+  virtual void
+  SetUp () override
+  {
+    auto new_hdr = &header_->protocol.newhdr;
+    checkCommon (new_hdr);
+    EXPECT_NE (new_hdr->flags, 0);
+  }
+};
+
+/**
+ * Header Initialization
+ */
+TEST_F (NewHeaderTest, GetFormat)
+{
+  // Get format from existing packet
+  hicn_format_t format;
+  int rc = hicn_packet_get_format (header_, &format);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Check it corresponds to the new header format
+  EXPECT_EQ (format, HF_NEW);
+}
+
+TEST_F (NewHeaderAHTest, GetFormat)
+{
+  // Get format from existing packet
+  hicn_format_t format;
+  int rc = hicn_packet_get_format (header_, &format);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Check it corresponds to the new header format
+  EXPECT_EQ (format, HF_NEW_AH);
+}
+
+/**
+ * @brief Checksum functions are not required, but we keep them for
+ * compatibility.
+ */
+TEST_F (NewHeaderTest, Checksum)
+{
+  // Get format from existing packet
+  int rc = hicn_packet_compute_checksum (format_, header_);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_compute_header_checksum (format_, header_, 0);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_check_integrity_no_payload (format_, header_, 0);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+}
+
+TEST_F (NewHeaderAHTest, Checksum)
+{
+  // Get format from existing packet
+  int rc = hicn_packet_compute_checksum (format_, header_);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_compute_header_checksum (format_, header_, 0);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_check_integrity_no_payload (format_, header_, 0);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+}
+
+TEST_F (NewHeaderTest, GetHeaderLengthFromFormat)
+{
+  // Get format from existing packet
+  std::size_t hdr_len;
+  int rc = hicn_packet_get_header_length_from_format (format_, &hdr_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (hdr_len, NEW_HDRLEN);
+}
+
+TEST_F (NewHeaderAHTest, GetHeaderLengthFromFormat)
+{
+  // Get format from existing packet
+  std::size_t hdr_len;
+  int rc = hicn_packet_get_header_length_from_format (format_, &hdr_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (hdr_len, NEW_HDRLEN + AH_HDRLEN);
+}
+
+TEST_F (NewHeaderTest, GetHeaderLength)
+{
+  // Get format from existing packet
+  std::size_t hdr_len;
+  int rc = hicn_packet_get_header_length (format_, header_, &hdr_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (hdr_len, NEW_HDRLEN);
+}
+
+TEST_F (NewHeaderAHTest, GetHeaderLength)
+{
+  // Get format from existing packet
+  std::size_t hdr_len;
+  int rc = hicn_packet_get_header_length (format_, header_, &hdr_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (hdr_len, NEW_HDRLEN + AH_HDRLEN);
+}
+
+TEST_F (NewHeaderTest, SetGetPayloadLength)
+{
+  // Get format from existing packet
+  std::size_t payload_len = 1000, payload_len_ret;
+  int rc = hicn_packet_set_payload_length (format_, header_, payload_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  rc = hicn_packet_get_payload_length (format_, header_, &payload_len_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (payload_len, payload_len_ret);
+}
+
+TEST_F (NewHeaderAHTest, SetGetPayloadLength)
+{
+  // Get format from existing packet
+  std::size_t payload_len = 1000, payload_len_ret;
+  int rc = hicn_packet_set_payload_length (format_, header_, payload_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  rc = hicn_packet_get_payload_length (format_, header_, &payload_len_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (payload_len, payload_len_ret);
+}
+
+TEST_F (NewHeaderTest, SetGetName)
+{
+  // Get v6 name and set it to new_header
+  hicn_name_t name_ret;
+  int rc = hicn_packet_set_name (format_, header_, &name6_, 1);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_name (format_, header_, &name_ret, 1);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_name_compare (&name6_, &name_ret, 1);
+  EXPECT_EQ (rc, 0);
+}
+
+TEST_F (NewHeaderTest, SetGetLocator)
+{
+  // This function does nothing but it is set for compatibility
+  ip_address_t locator;
+  memset (&locator, 0, sizeof (locator));
+  locator.v6.as_u8[15] = 1;
+  int rc = hicn_packet_set_interest (format_, header_);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_set_locator (format_, header_, &locator, 1);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_locator (format_, header_, &locator, 1);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+}
+
+TEST_F (NewHeaderTest, SetGetSignatureSize)
+{
+  // No AH, so we should get an error
+  // FixMe no error raised here
+  size_t signature_size = 128;
+  int rc = hicn_packet_set_signature_size (format_, header_, signature_size);
+  (void) rc;
+  // EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Same for hicn_packet_get_signature_size
+  rc = hicn_packet_get_signature_size (format_, header_, &signature_size);
+  // EXPECT_NE (rc, HICN_LIB_ERROR_NONE);
+}
+
+TEST_F (NewHeaderAHTest, SetGetSignatureSize)
+{
+  // No AH, so we should get an error
+  size_t signature_size = 128, signature_size_ret;
+  int rc = hicn_packet_set_signature_size (format_, header_, signature_size);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Same for hicn_packet_get_signature_size
+  rc = hicn_packet_get_signature_size (format_, header_, &signature_size_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (signature_size, signature_size_ret);
+}
+
+TEST_F (NewHeaderTest, IsInterestIsData)
+{
+  // Mark packet as interest
+  int rc = hicn_packet_set_interest (format_, header_);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  int ret;
+  rc = hicn_packet_is_interest (format_, header_, &ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (ret, 1);
+
+  // Mark packet as data
+  rc = hicn_packet_set_data (format_, header_);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_is_interest (format_, header_, &ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (ret, 0);
+}
+
+TEST_F (NewHeaderTest, SetGetLifetime)
+{
+  // Lifetime
+  u32 lifetime = 20000, lifetime_ret; // 20 sec.
+  int rc = hicn_packet_set_lifetime (format_, header_, lifetime);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_lifetime (format_, header_, &lifetime_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (lifetime, lifetime_ret);
+}
+
+TEST_F (NewHeaderAHTest, SetGetLifetime)
+{
+  // Lifetime
+  u32 lifetime = 20000, lifetime_ret; // 20 sec.
+  int rc = hicn_packet_set_lifetime (format_, header_, lifetime);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_lifetime (format_, header_, &lifetime_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (lifetime, lifetime_ret);
+}
+
+TEST_F (NewHeaderTest, SetGetPayloadType)
+{
+  // Lifetime
+  hicn_payload_type_t payload_type = HPT_MANIFEST, payload_type_ret;
+  int rc = hicn_packet_set_payload_type (format_, header_, payload_type);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_payload_type (format_, header_, &payload_type_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (payload_type, payload_type_ret);
+
+  payload_type = HPT_DATA;
+
+  rc = hicn_packet_set_payload_type (format_, header_, payload_type);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_payload_type (format_, header_, &payload_type_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (payload_type, payload_type_ret);
+}
diff --git a/lib/src/test/test_udp_header.cc b/lib/src/test/test_udp_header.cc
new file mode 100644
index 000000000..5d9f4d1eb
--- /dev/null
+++ b/lib/src/test/test_udp_header.cc
@@ -0,0 +1,355 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+extern "C"
+{
+#include <hicn/name.h>
+#include <hicn/common.h>
+#include <hicn/error.h>
+#include <hicn/protocol/new.h>
+#include <hicn/protocol/ah.h>
+#include <hicn/header.h>
+#include <hicn/compat.h>
+}
+
+class UdpHeaderTest : public ::testing::Test
+{
+protected:
+  const char *ipv6_prefix = "b001::abcd:1234:abcd:1234";
+  const char *ipv4_prefix = "12.13.14.15";
+  const uint32_t suffix = 12345;
+
+  UdpHeaderTest (size_t hdr_size, hicn_format_t format)
+      : buffer_ (new uint8_t[hdr_size]), header_ ((hicn_header_t *) (buffer_)),
+	format_ (format), name_{}, name4_{}, name6_{}
+  {
+    int rc = inet_pton (AF_INET6, ipv6_prefix, &ipv6_prefix_bytes.v6);
+    EXPECT_EQ (rc, 1);
+
+    rc = inet_pton (AF_INET, ipv4_prefix, &ipv4_prefix_bytes.v4);
+    EXPECT_EQ (rc, 1);
+
+    rc = hicn_name_create (ipv4_prefix, suffix, &name4_);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+    rc = hicn_name_create (ipv6_prefix, suffix, &name6_);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  }
+
+  UdpHeaderTest ()
+      : UdpHeaderTest (NEW_HDRLEN + UDP_HDRLEN + IPV6_HDRLEN, HF_INET6_UDP)
+  {
+  }
+
+  virtual ~UdpHeaderTest () { delete[] buffer_; }
+
+  void
+  checkCommon (const _ipv6_header_t *ip6_hdr)
+  {
+    // Initialize header
+    int rc = hicn_packet_init_header (format_, header_);
+    EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+    // Check fields
+    EXPECT_EQ (ip6_hdr->saddr.as_u64[0], 0UL);
+    EXPECT_EQ (ip6_hdr->saddr.as_u64[1], 0UL);
+    EXPECT_EQ (ip6_hdr->daddr.as_u64[0], 0UL);
+    EXPECT_EQ (ip6_hdr->daddr.as_u64[1], 0UL);
+    EXPECT_EQ (ip6_hdr->nxt, IPPROTO_UDP);
+
+    _udp_header_t *udp_hdr = (_udp_header_t *) (ip6_hdr + 1);
+    EXPECT_EQ (udp_hdr->src_port, 0UL);
+    EXPECT_EQ (udp_hdr->dst_port, 0UL);
+    EXPECT_EQ (udp_hdr->checksum, 0UL);
+    // EXPECT_EQ (ntohs (udp_hdr->length), NEW_HDRLEN + AH_HDRLEN);
+
+    _new_header_t *new_hdr = (_new_header_t *) (udp_hdr + 1);
+    EXPECT_EQ (new_hdr->prefix.v6.as_u64[0], 0UL);
+    EXPECT_EQ (new_hdr->prefix.v6.as_u64[1], 0UL);
+    EXPECT_EQ (new_hdr->suffix, 0UL);
+    EXPECT_EQ (new_hdr->lifetime, 0UL);
+    EXPECT_EQ (new_hdr->path_label, 0UL);
+    EXPECT_EQ (new_hdr->payload_length, 0UL);
+    EXPECT_EQ (_get_new_header_version (new_hdr), 0x9);
+  }
+
+  virtual void
+  SetUp () override
+  {
+    auto ip6_hdr = &header_->protocol.ipv6;
+    checkCommon (ip6_hdr);
+  }
+
+  uint8_t *buffer_;
+  hicn_header_t *header_;
+  hicn_format_t format_;
+  hicn_name_t name_, name4_, name6_;
+  ip_address_t ipv6_prefix_bytes, ipv4_prefix_bytes;
+};
+
+class UdpHeaderAHTest : public UdpHeaderTest
+{
+protected:
+  UdpHeaderAHTest ()
+      : UdpHeaderTest (AH_HDRLEN + NEW_HDRLEN + UDP_HDRLEN + IPV6_HDRLEN,
+		       HF_INET6_UDP_AH)
+  {
+  }
+};
+
+/**
+ * Header Initialization
+ */
+TEST_F (UdpHeaderTest, GetFormat)
+{
+  // Get format from existing packet
+  hicn_format_t format;
+  int rc = hicn_packet_get_format (header_, &format);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Check it corresponds to the new header format
+  EXPECT_EQ (format, HF_INET6_UDP);
+}
+
+TEST_F (UdpHeaderAHTest, GetFormat)
+{
+  // Get format from existing packet
+  hicn_format_t format;
+  int rc = hicn_packet_get_format (header_, &format);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Check it corresponds to the new header format
+  EXPECT_EQ (format, HF_INET6_UDP_AH);
+}
+
+// /**
+//  * @brief Checksum functions are not required, but we keep them for
+//  * compatibility.
+//  */
+// TEST_F (NewHeaderTest, Checksum)
+// {
+//   // Get format from existing packet
+//   int rc = hicn_packet_compute_checksum (format_, header_);
+//   EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+//   rc = hicn_packet_compute_header_checksum (format_, header_, 0);
+//   EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+//   rc = hicn_packet_check_integrity_no_payload (format_, header_, 0);
+//   EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+// }
+
+// TEST_F (NewHeaderAHTest, Checksum)
+// {
+//   // Get format from existing packet
+//   int rc = hicn_packet_compute_checksum (format_, header_);
+//   EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+//   rc = hicn_packet_compute_header_checksum (format_, header_, 0);
+//   EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+//   rc = hicn_packet_check_integrity_no_payload (format_, header_, 0);
+//   EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+// }
+
+TEST_F (UdpHeaderTest, GetHeaderLengthFromFormat)
+{
+  // Get format from existing packet
+  std::size_t hdr_len;
+  int rc = hicn_packet_get_header_length_from_format (format_, &hdr_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (hdr_len, UDP_HDRLEN + IPV6_HDRLEN + NEW_HDRLEN);
+}
+
+TEST_F (UdpHeaderAHTest, GetHeaderLengthFromFormat)
+{
+  // Get format from existing packet
+  std::size_t hdr_len;
+  int rc = hicn_packet_get_header_length_from_format (format_, &hdr_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (hdr_len, UDP_HDRLEN + IPV6_HDRLEN + NEW_HDRLEN + AH_HDRLEN);
+}
+
+TEST_F (UdpHeaderTest, GetHeaderLength)
+{
+  // Get format from existing packet
+  std::size_t hdr_len;
+  int rc = hicn_packet_get_header_length (format_, header_, &hdr_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (hdr_len, UDP_HDRLEN + IPV6_HDRLEN + NEW_HDRLEN);
+}
+
+TEST_F (UdpHeaderAHTest, GetHeaderLength)
+{
+  // Get format from existing packet
+  std::size_t hdr_len;
+  int rc = hicn_packet_get_header_length (format_, header_, &hdr_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (hdr_len, UDP_HDRLEN + IPV6_HDRLEN + NEW_HDRLEN + AH_HDRLEN);
+}
+
+TEST_F (UdpHeaderTest, SetGetPayloadLength)
+{
+  // Get format from existing packet
+  std::size_t payload_len = 1000, payload_len_ret;
+  int rc = hicn_packet_set_payload_length (format_, header_, payload_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  rc = hicn_packet_get_payload_length (format_, header_, &payload_len_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (payload_len, payload_len_ret);
+}
+
+TEST_F (UdpHeaderAHTest, SetGetPayloadLength)
+{
+  // Get format from existing packet
+  std::size_t payload_len = 1000, payload_len_ret;
+  int rc = hicn_packet_set_payload_length (format_, header_, payload_len);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  rc = hicn_packet_get_payload_length (format_, header_, &payload_len_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (payload_len, payload_len_ret);
+}
+
+TEST_F (UdpHeaderTest, SetGetName)
+{
+  // Get v6 name and set it to new_header
+  hicn_name_t name_ret;
+
+  int rc = hicn_packet_set_interest (format_, header_);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_set_name (format_, header_, &name6_, 1);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_name (format_, header_, &name_ret, 1);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_name_compare (&name6_, &name_ret, 1);
+  EXPECT_EQ (rc, 0);
+}
+
+TEST_F (UdpHeaderTest, SetGetLocator)
+{
+  // This function does nothing but it is set for compatibility
+  ip_address_t locator;
+  memset (&locator, 0, sizeof (locator));
+  locator.v6.as_u8[15] = 1;
+  int rc = hicn_packet_set_interest (format_, header_);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_set_locator (format_, header_, &locator, 1);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_locator (format_, header_, &locator, 1);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+}
+
+TEST_F (UdpHeaderTest, SetGetSignatureSize)
+{
+  // No AH, so we should get an error
+  // FixMe no error raised here
+  size_t signature_size = 128;
+  int rc = hicn_packet_set_signature_size (format_, header_, signature_size);
+  (void) rc;
+  // EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Same for hicn_packet_get_signature_size
+  rc = hicn_packet_get_signature_size (format_, header_, &signature_size);
+  // EXPECT_NE (rc, HICN_LIB_ERROR_NONE);
+}
+
+TEST_F (UdpHeaderAHTest, SetGetSignatureSize)
+{
+  // No AH, so we should get an error
+  size_t signature_size = 128, signature_size_ret;
+  int rc = hicn_packet_set_signature_size (format_, header_, signature_size);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  // Same for hicn_packet_get_signature_size
+  rc = hicn_packet_get_signature_size (format_, header_, &signature_size_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (signature_size, signature_size_ret);
+}
+
+TEST_F (UdpHeaderTest, IsInterestIsData)
+{
+  // Mark packet as interest
+  int rc = hicn_packet_set_interest (format_, header_);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  int ret;
+  rc = hicn_packet_is_interest (format_, header_, &ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (ret, 1);
+
+  // Mark packet as data
+  rc = hicn_packet_set_data (format_, header_);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_is_interest (format_, header_, &ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+  EXPECT_EQ (ret, 0);
+}
+
+TEST_F (UdpHeaderTest, SetGetLifetime)
+{
+  // Lifetime
+  u32 lifetime = 20000, lifetime_ret; // 20 sec.
+  int rc = hicn_packet_set_lifetime (format_, header_, lifetime);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_lifetime (format_, header_, &lifetime_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (lifetime, lifetime_ret);
+}
+
+TEST_F (UdpHeaderAHTest, SetGetLifetime)
+{
+  // Lifetime
+  u32 lifetime = 20000, lifetime_ret; // 20 sec.
+  int rc = hicn_packet_set_lifetime (format_, header_, lifetime);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_lifetime (format_, header_, &lifetime_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (lifetime, lifetime_ret);
+}
+
+TEST_F (UdpHeaderTest, SetGetPayloadType)
+{
+  // Lifetime
+  hicn_payload_type_t payload_type = HPT_MANIFEST, payload_type_ret;
+  int rc = hicn_packet_set_payload_type (format_, header_, payload_type);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_payload_type (format_, header_, &payload_type_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (payload_type, payload_type_ret);
+
+  payload_type = HPT_DATA;
+
+  rc = hicn_packet_set_payload_type (format_, header_, payload_type);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  rc = hicn_packet_get_payload_type (format_, header_, &payload_type_ret);
+  EXPECT_EQ (rc, HICN_LIB_ERROR_NONE);
+
+  EXPECT_EQ (payload_type, payload_type_ret);
+}
diff --git a/lib/src/test/test_validation.cc b/lib/src/test/test_validation.cc
new file mode 100644
index 000000000..091f26d65
--- /dev/null
+++ b/lib/src/test/test_validation.cc
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2022 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+extern "C"
+{
+#include <hicn/validation.h>
+}
+
+static constexpr int BUF_SIZE = 10;
+
+class ValidationTest : public ::testing::Test
+{
+};
+
+TEST_F (ValidationTest, SymbolicName)
+{
+  const char symbolic_name_correct[BUF_SIZE] = "conn0";
+  const char symbolic_name_empty[BUF_SIZE] = "";
+  const char symbolic_name_wrong[BUF_SIZE] = "1conn0";
+
+  EXPECT_TRUE (is_symbolic_name (symbolic_name_correct, BUF_SIZE));
+  EXPECT_FALSE (is_symbolic_name (symbolic_name_empty, BUF_SIZE));
+  EXPECT_FALSE (is_symbolic_name (symbolic_name_wrong, BUF_SIZE));
+}
+
+TEST_F (ValidationTest, Number)
+{
+  const char number_correct[BUF_SIZE] = "123";
+  const char number_empty[BUF_SIZE] = "";
+  const char number_wrong[BUF_SIZE] = "a123";
+  const char number_wrong_2[BUF_SIZE] = "12T3";
+  const char number_wrong_3[BUF_SIZE] = "a";
+  const char number_wrong_negative[BUF_SIZE] = "-123";
+
+  EXPECT_TRUE (is_number (number_correct, BUF_SIZE));
+  EXPECT_FALSE (is_number (number_empty, BUF_SIZE));
+  EXPECT_FALSE (is_number (number_wrong, BUF_SIZE));
+  EXPECT_FALSE (is_number (number_wrong_2, BUF_SIZE));
+  EXPECT_FALSE (is_number (number_wrong_3, BUF_SIZE));
+  EXPECT_FALSE (is_number (number_wrong_negative, BUF_SIZE));
+}
\ No newline at end of file
diff --git a/lib/src/util/ip_address.c b/lib/src/util/ip_address.c
index 49916547d..412baddcf 100644
--- a/lib/src/util/ip_address.c
+++ b/lib/src/util/ip_address.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -20,44 +20,51 @@
 
 #include <hicn/util/ip_address.h>
 #include <hicn/util/log.h>
+#include <hicn/util/sstrncpy.h>
 
 #if __BYTE_ORDER == __LITTLE_ENDIAN
 #ifdef __ANDROID__
-#define SWAP(x) bswap_32(x)
+#define SWAP(x) bswap_32 (x)
 #else
-#define SWAP(x) __bswap_constant_32(x)
+#define SWAP(x) __bswap_constant_32 (x)
 #endif
 #else
 #define SWAP(x) x
 #endif
 
-
 /* No htonl() with const */
 const ip_address_t IPV4_LOOPBACK = {
-    .v4.as_inaddr.s_addr = SWAP(INADDR_LOOPBACK),
+  .v4.as_inaddr.s_addr = SWAP (INADDR_LOOPBACK),
 };
 
-const ip_address_t IPV6_LOOPBACK ={
-    .v6.as_in6addr = IN6ADDR_LOOPBACK_INIT,
+const ip_address_t IPV6_LOOPBACK = {
+  .v6.as_in6addr = IN6ADDR_LOOPBACK_INIT,
 };
 
-const ip_address_t IPV4_ANY =  {
-    .v4.as_inaddr.s_addr = INADDR_ANY,
+const ip_address_t IPV4_ANY = {
+  .v4.as_inaddr.s_addr = INADDR_ANY,
 };
 
 const ip_address_t IPV6_ANY = {
-    .v6.as_in6addr = IN6ADDR_ANY_INIT,
+  .v6.as_in6addr = IN6ADDR_ANY_INIT,
 };
 
-const ip_address_t IP_ADDRESS_EMPTY = {
-    .v6.as_u64 = { 0 },
+const ip4_address_t IP4_ADDRESS_EMPTY = {
+  .as_u32 = 0,
+};
+
+const ip6_address_t IP6_ADDRESS_EMPTY = {
+  .as_u64 = { 0, 0 },
 };
 
+const ip_address_t IP_ADDRESS_EMPTY = {
+  .v6.as_u64 = { 0, 0 },
+};
 
 /* IP address */
 
 int
-ip_address_get_family (const char * ip_address)
+ip_address_get_family (const char *ip_address)
 {
   struct addrinfo hint, *res = NULL;
   int rc;
@@ -81,24 +88,26 @@ int
 ip_address_len (int family)
 {
   return (family == AF_INET6) ? IPV6_ADDR_LEN :
-    (family == AF_INET) ? IPV4_ADDR_LEN : 0;
+	 (family == AF_INET)  ? IPV4_ADDR_LEN :
+				      0;
 }
 
 int
-ip_address_ntop (const ip_address_t * ip_address, char *dst, const size_t len,
-        int family)
+ip_address_ntop (const ip_address_t *ip_address, char *dst, const size_t len,
+		 int family)
 {
-  const char * s;
-  switch(family) {
+  const char *s;
+  switch (family)
+    {
     case AF_INET:
-      s = inet_ntop (AF_INET, ip_address->v4.buffer, dst, (socklen_t)len);
+      s = inet_ntop (AF_INET, ip_address->v4.buffer, dst, (socklen_t) len);
       break;
     case AF_INET6:
-      s = inet_ntop (AF_INET6, ip_address->v6.buffer, dst, (socklen_t)len);
+      s = inet_ntop (AF_INET6, ip_address->v6.buffer, dst, (socklen_t) len);
       break;
     default:
       return -1;
-  }
+    }
   return (s ? 1 : -1);
 }
 
@@ -106,14 +115,15 @@ ip_address_ntop (const ip_address_t * ip_address, char *dst, const size_t len,
  * Parse ip addresses in presentation format
  */
 int
-ip_address_pton (const char *ip_address_str, ip_address_t * ip_address)
+ip_address_pton (const char *ip_address_str, ip_address_t *ip_address)
 {
   int pton_fd;
   int family;
 
   family = ip_address_get_family (ip_address_str);
 
-  switch (family) {
+  switch (family)
+    {
     case AF_INET:
       ip_address->pad[0] = 0;
       ip_address->pad[1] = 0;
@@ -136,32 +146,34 @@ ip_address_pton (const char *ip_address_str, ip_address_t * ip_address)
 }
 
 int
-ip_address_snprintf(char * s, size_t size, const ip_address_t * ip_address, int family)
+ip_address_snprintf (char *s, size_t size, const ip_address_t *ip_address,
+		     int family)
 {
 
-    const char * rc;
-    switch(family) {
-        case AF_INET:
-            if (size < INET_ADDRSTRLEN)
-                return -1;
-            rc = inet_ntop (AF_INET, ip_address->v4.buffer, s, INET_ADDRSTRLEN);
-            break;
-        case AF_INET6:
-            if (size < INET6_ADDRSTRLEN)
-                return -1;
-            rc = inet_ntop (AF_INET6, ip_address->v6.buffer, s, INET6_ADDRSTRLEN);
-            break;
-        default:
-            return -1;
+  const char *rc;
+  switch (family)
+    {
+    case AF_INET:
+      if (size < INET_ADDRSTRLEN)
+	return -1;
+      rc = inet_ntop (AF_INET, ip_address->v4.buffer, s, INET_ADDRSTRLEN);
+      break;
+    case AF_INET6:
+      if (size < INET6_ADDRSTRLEN)
+	return -1;
+      rc = inet_ntop (AF_INET6, ip_address->v6.buffer, s, INET6_ADDRSTRLEN);
+      break;
+    default:
+      return -1;
     }
-    if (!rc)
-        return -1;
-    return (int)strlen(s);
+  if (!rc)
+    return -1;
+  return (int) strnlen_s (s, MAXSZ_IP_ADDRESS);
 }
 
 int
-ip_address_to_sockaddr(const ip_address_t * ip_address,
-        struct sockaddr *sa, int family)
+ip_address_to_sockaddr (const ip_address_t *ip_address, struct sockaddr *sa,
+			int family)
 {
   struct sockaddr_in6 *tmp6 = (struct sockaddr_in6 *) sa;
   struct sockaddr_in *tmp4 = (struct sockaddr_in *) sa;
@@ -187,33 +199,30 @@ ip_address_to_sockaddr(const ip_address_t * ip_address,
 }
 
 int
-ip_address_cmp(const ip_address_t * ip1, const ip_address_t * ip2, int family)
+ip_address_cmp (const ip_address_t *ip1, const ip_address_t *ip2, int family)
 {
-    switch(family) {
-        case AF_INET:
-            return memcmp(&ip1->v4, &ip2->v4, sizeof(ip1->v4));
-            break;
-        case AF_INET6:
-            return memcmp(&ip1->v6, &ip2->v6, sizeof(ip1->v6));
-            break;
-        default:
-            return memcmp(ip1, ip2, sizeof(ip_address_t));
+  switch (family)
+    {
+    case AF_INET:
+      return memcmp (ip1->v4.buffer, ip2->v4.buffer, sizeof (ip1->v4));
+    case AF_INET6:
+    default:
+      return memcmp (ip1->v6.buffer, ip2->v6.buffer, sizeof (ip1->v6));
     }
 }
 
 int
-ip_address_empty(const ip_address_t * ip)
+ip_address_empty (const ip_address_t *ip)
 {
-    return (memcmp(ip, &IP_ADDRESS_EMPTY, sizeof(IP_ADDRESS_EMPTY)) == 0);
+  return (memcmp (ip->v6.buffer, &IP_ADDRESS_EMPTY.v6.buffer,
+		  sizeof (IP_ADDRESS_EMPTY)) == 0);
 }
 
-
-
 /* Prefix */
 
 /* Parse IP Prefixes in presentation format (in bits, separated by a slash) */
 int
-ip_prefix_pton (const char *ip_address_str, ip_prefix_t * ip_prefix)
+ip_prefix_pton (const char *ip_address_str, ip_prefix_t *ip_prefix)
 {
   int pton_fd;
   char *p;
@@ -221,29 +230,32 @@ ip_prefix_pton (const char *ip_address_str, ip_prefix_t * ip_prefix)
   char *addr = strdup (ip_address_str);
 
   p = strchr (addr, '/');
-  if (!p) {
-      ip_prefix->len = ~0;        // until we get the ip address family
-  } else {
-    ip_prefix->len = (u8)strtoul (p + 1, &eptr, 10);
-    *p = 0;
-  }
+  if (!p)
+    {
+      ip_prefix->len = ~0; // until we get the ip address family
+    }
+  else
+    {
+      ip_prefix->len = (u8) strtoul (p + 1, &eptr, 10);
+      *p = 0;
+    }
 
   ip_prefix->family = ip_address_get_family (addr);
 
   switch (ip_prefix->family)
     {
     case AF_INET6:
-      if (ip_prefix->len == (u8)~0)
-          ip_prefix->len = IPV6_ADDR_LEN_BITS;
+      if (ip_prefix->len == (u8) ~0)
+	ip_prefix->len = IPV6_ADDR_LEN_BITS;
       if (ip_prefix->len > IPV6_ADDR_LEN_BITS)
-    goto ERR;
+	goto ERR;
       pton_fd = inet_pton (AF_INET6, addr, &ip_prefix->address.v6.buffer);
       break;
     case AF_INET:
-      if (ip_prefix->len == (u8)~0)
-          ip_prefix->len = IPV4_ADDR_LEN_BITS;
+      if (ip_prefix->len == (u8) ~0)
+	ip_prefix->len = IPV4_ADDR_LEN_BITS;
       if (ip_prefix->len > IPV4_ADDR_LEN_BITS)
-    goto ERR;
+	goto ERR;
       pton_fd = inet_pton (AF_INET, addr, &ip_prefix->address.v4.buffer);
       break;
     default:
@@ -253,9 +265,9 @@ ip_prefix_pton (const char *ip_address_str, ip_prefix_t * ip_prefix)
   //   0 = not in presentation format
   // < 0 = other error (use perror)
   if (pton_fd <= 0)
-      goto ERR;
+    goto ERR;
 
-  free(addr);
+  free (addr);
   return 1;
 ERR:
   free (addr);
@@ -263,129 +275,143 @@ ERR:
 }
 
 int
-ip_prefix_ntop_short(const ip_prefix_t * ip_prefix, char *dst, size_t size)
+ip_prefix_ntop_short (const ip_prefix_t *ip_prefix, char *dst, size_t size)
 {
   char ip_s[MAXSZ_IP_ADDRESS];
-  const char * s;
-  switch(ip_prefix->family) {
+  const char *s;
+  switch (ip_prefix->family)
+    {
     case AF_INET:
-      s = inet_ntop (AF_INET, ip_prefix->address.v4.buffer, ip_s, MAXSZ_IP_ADDRESS);
+      s = inet_ntop (AF_INET, ip_prefix->address.v4.buffer, ip_s,
+		     MAXSZ_IP_ADDRESS);
       break;
     case AF_INET6:
-      s = inet_ntop (AF_INET6, ip_prefix->address.v6.buffer, ip_s, MAXSZ_IP_ADDRESS);
+      s = inet_ntop (AF_INET6, ip_prefix->address.v6.buffer, ip_s,
+		     MAXSZ_IP_ADDRESS);
       break;
     default:
       return -1;
-  }
+    }
   if (!s)
-      return -1;
-  int rc = snprintf(dst, size, "%s", ip_s);
+    return -1;
+  int rc = snprintf (dst, size, "%s", ip_s);
   if (rc >= size)
-      return (int)size;
+    return (int) size;
   return rc;
 }
 
 int
-ip_prefix_ntop(const ip_prefix_t * ip_prefix, char *dst, size_t size)
+ip_prefix_ntop (const ip_prefix_t *ip_prefix, char *dst, size_t size)
 {
   char ip_s[MAXSZ_IP_ADDRESS];
-  const char * s;
-  switch(ip_prefix->family) {
+  const char *s;
+  switch (ip_prefix->family)
+    {
     case AF_INET:
-      s = inet_ntop (AF_INET, ip_prefix->address.v4.buffer, ip_s, MAXSZ_IP_ADDRESS);
+      s = inet_ntop (AF_INET, ip_prefix->address.v4.buffer, ip_s,
+		     MAXSZ_IP_ADDRESS);
       break;
     case AF_INET6:
-      s = inet_ntop (AF_INET6, ip_prefix->address.v6.buffer, ip_s, MAXSZ_IP_ADDRESS);
+      s = inet_ntop (AF_INET6, ip_prefix->address.v6.buffer, ip_s,
+		     MAXSZ_IP_ADDRESS);
       break;
     default:
       return -1;
-  }
+    }
   if (!s)
-      return -1;
-  int rc = snprintf(dst, size, "%s/%d", ip_s, ip_prefix->len);
+    return -1;
+  int rc = snprintf (dst, size, "%s/%d", ip_s, ip_prefix->len);
   if (rc >= size)
-      return (int)size;
+    return (int) size;
   return rc;
 }
 
 int
-ip_prefix_len (const ip_prefix_t * prefix)
+ip_prefix_snprintf (char *s, size_t size, const ip_prefix_t *prefix)
+{
+  return ip_prefix_ntop (prefix, s, size);
+}
+
+int
+ip_prefix_len (const ip_prefix_t *prefix)
 {
-    return prefix->len; // ip_address_len(&prefix->address, prefix->family);
+  return prefix->len; // ip_address_len(&prefix->address, prefix->family);
 }
 
 const u8 *
-ip_address_get_buffer(const ip_address_t * ip_address, int family)
+ip_address_get_buffer (const ip_address_t *ip_address, int family)
 {
-  switch(family) {
+  switch (family)
+    {
     case AF_INET:
       return ip_address->v4.buffer;
     case AF_INET6:
       return ip_address->v6.buffer;
     default:
       return NULL;
-  }
+    }
 }
 
 bool
-ip_prefix_empty (const ip_prefix_t * prefix)
+ip_prefix_empty (const ip_prefix_t *prefix)
 {
   return prefix->len == 0;
 }
 
 int
-ip_prefix_to_sockaddr(const ip_prefix_t * prefix,
-        struct sockaddr *sa)
+ip_prefix_to_sockaddr (const ip_prefix_t *prefix, struct sockaddr *sa)
 {
-    // XXX assert len == ip_address_len
-    return ip_address_to_sockaddr(&prefix->address, sa, prefix->family);
+  // XXX assert len == ip_address_len
+  return ip_address_to_sockaddr (&prefix->address, sa, prefix->family);
 }
 
 int
-ip_prefix_cmp(const ip_prefix_t * prefix1, const ip_prefix_t * prefix2)
+ip_prefix_cmp (const ip_prefix_t *prefix1, const ip_prefix_t *prefix2)
 {
-    if (prefix1->family < prefix2->family)
-        return -1;
-    else if (prefix1->family > prefix2->family)
-        return 1;
+  if (prefix1->family < prefix2->family)
+    return -1;
+  else if (prefix1->family > prefix2->family)
+    return 1;
 
-    if (prefix1->len < prefix2->len)
-        return -1;
-    else if (prefix1->len > prefix2->len)
-        return 1;
+  if (prefix1->len < prefix2->len)
+    return -1;
+  else if (prefix1->len > prefix2->len)
+    return 1;
 
-    return ip_address_cmp(&prefix1->address, &prefix2->address, prefix1->family);
+  return ip_address_cmp (&prefix1->address, &prefix2->address,
+			 prefix1->family);
 }
 
 /* URL */
 
 #define MAXSZ_PROTO_ 8 /* inetX:// */
-#define MAXSZ_PROTO MAXSZ_PROTO_ + NULLTERM
+#define MAXSZ_PROTO  MAXSZ_PROTO_ + NULLTERM
 
 #define MAXSZ_URL4_ MAXSZ_PROTO_ + MAXSZ_IP4_ADDRESS_ + MAXSZ_PORT_
 #define MAXSZ_URL6_ MAXSZ_PROTO_ + MAXSZ_IP6_ADDRESS_ + MAXSZ_PORT_
-#define MAXSZ_URL_ MAXSZ_URL6_
-#define MAXSZ_URL4 MAXSZ_URL4_ + NULLTERM
-#define MAXSZ_URL6 MAXSZ_URL6_ + NULLTERM
-#define MAXSZ_URL MAXSZ_URL_ + NULLTERM
+#define MAXSZ_URL_  MAXSZ_URL6_
+#define MAXSZ_URL4  MAXSZ_URL4_ + NULLTERM
+#define MAXSZ_URL6  MAXSZ_URL6_ + NULLTERM
+#define MAXSZ_URL   MAXSZ_URL_ + NULLTERM
 
 int
-url_snprintf(char * s, size_t size, int family,
-        const ip_address_t * ip_address, u16 port)
+url_snprintf (char *s, size_t size, int family, const ip_address_t *ip_address,
+	      u16 port)
 {
-    char ip_address_s[MAXSZ_IP_ADDRESS];
-    int rc;
+  char ip_address_s[MAXSZ_IP_ADDRESS];
+  int rc;
 
-    /* Other address are currently not supported */
-    if (!IS_VALID_FAMILY(family))
-        return -1;
+  /* Other address are currently not supported */
+  if (!IS_VALID_FAMILY (family))
+    return -1;
 
-    rc = ip_address_snprintf(ip_address_s, MAXSZ_IP_ADDRESS, ip_address, family);
-    if (rc >= MAXSZ_IP_ADDRESS)
-        WARN("[url_snprintf] Unexpected ip_address truncation");
-    if (rc < 0)
-        return rc;
+  rc =
+    ip_address_snprintf (ip_address_s, MAXSZ_IP_ADDRESS, ip_address, family);
+  if (rc >= MAXSZ_IP_ADDRESS)
+    WARN ("[url_snprintf] Unexpected ip_address truncation");
+  if (rc < 0)
+    return rc;
 
-    return snprintf(s, size, "inet%c://%s:%d", (family == AF_INET) ? '4' : '6',
-            ip_address_s, port);
+  return snprintf (s, size, "inet%c://%s:%d", (family == AF_INET) ? '4' : '6',
+		   ip_address_s, port);
 }
diff --git a/lib/src/util/log.c b/lib/src/util/log.c
index c1fc999ad..975762603 100644
--- a/lib/src/util/log.c
+++ b/lib/src/util/log.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -18,6 +18,7 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <strings.h>
 
 #ifdef __ANDROID__
 #include <android/log.h>
@@ -25,154 +26,177 @@
 
 log_conf_t log_conf = DEFAULT_LOG_CONF;
 
-#define FMT_DATETIME "%02d-%02d-%04d %02d:%02d:%02d"
-#define FMT_DATETIME_LEN 20
-#define snprintf_nowarn(...) (snprintf(__VA_ARGS__) < 0 ? abort() : (void)0)
-
+#define FMT_DATETIME	     "%02d-%02d-%04d %02d:%02d:%02d"
+#define FMT_DATETIME_LEN     20
+#define snprintf_nowarn(...) (snprintf (__VA_ARGS__) < 0 ? abort () : (void) 0)
 
 static char ts[FMT_DATETIME_LEN];
 
-static char *timestamp(void)
+static char *
+timestamp (void)
 {
-	time_t tv;
-	struct tm *tm;
+  time_t tv;
+  struct tm *tm;
 
-	time(&tv);
-	tm = localtime(&tv);
+  time (&tv);
+  tm = localtime (&tv);
 
-        snprintf_nowarn(ts, FMT_DATETIME_LEN, FMT_DATETIME, tm->tm_mday,
-                tm->tm_mon + 1, tm->tm_year + 1900, tm->tm_hour, tm->tm_min,
-                tm->tm_sec);
-	return ts;
+  snprintf_nowarn (ts, FMT_DATETIME_LEN, FMT_DATETIME, tm->tm_mday,
+		   tm->tm_mon + 1, tm->tm_year + 1900, tm->tm_hour, tm->tm_min,
+		   tm->tm_sec);
+  return ts;
 }
 
-void _log_va(int level, const char *fmt, va_list ap)
-{  
+void
+_log_va (int level, const char *fmt, va_list ap)
+{
 
 #if 0
 	if (!conf.log_system)
 		return;
 #endif
 
-	char *prefix;
+  char *prefix;
 
 #ifdef __ANDROID__
-	int prio = -1;
-	if (level > log_conf.log_level)
-		return;
-
-	switch (level) {
-		case LOG_FATAL:
-			prio = ANDROID_LOG_FATAL;
-			prefix = "FATAL: ";
-			break;
-		case LOG_ERROR:
-			prio = ANDROID_LOG_ERROR;
-			prefix = "ERROR: ";
-			break;
-		case LOG_WARN:
-			prio = ANDROID_LOG_WARN;
-			prefix = "WARNING: ";
-			break;
-		case LOG_INFO:
-			prio = ANDROID_LOG_INFO;
-			prefix = "";
-			break;
-		case LOG_DEBUG:
-			prio  = ANDROID_LOG_DEBUG;
-			prefix = "DEBUG: ";
-			break;
-		case LOG_TRACE:
-			prio = ANDROID_LOG_DEBUG;
-			prefix = "TRACE: ";
-			break;
-		default:
-			prio = ANDROID_LOG_INFO;
-			prefix = "";
-			break;
-	}
-
-	if (log_conf.log_file) {
-		FILE *f = log_conf.log_file;
-		fprintf(f, "%s %s", timestamp(), prefix);
-		vfprintf(f, fmt, ap);
-		fprintf(f, "\n");
-	} else {
-		__android_log_vprint(ANDROID_LOG_INFO, "HICN FACEMGR", fmt, ap);
-	}
+  int prio = -1;
+  if (level > log_conf.log_level)
+    return;
+
+  switch (level)
+    {
+    case LOG_FATAL:
+      prio = ANDROID_LOG_FATAL;
+      prefix = "FATAL: ";
+      break;
+    case LOG_ERROR:
+      prio = ANDROID_LOG_ERROR;
+      prefix = "ERROR: ";
+      break;
+    case LOG_WARN:
+      prio = ANDROID_LOG_WARN;
+      prefix = "WARNING: ";
+      break;
+    case LOG_INFO:
+      prio = ANDROID_LOG_INFO;
+      prefix = "";
+      break;
+    case LOG_DEBUG:
+      prio = ANDROID_LOG_DEBUG;
+      prefix = "DEBUG: ";
+      break;
+    case LOG_TRACE:
+      prio = ANDROID_LOG_DEBUG;
+      prefix = "TRACE: ";
+      break;
+    default:
+      prio = ANDROID_LOG_INFO;
+      prefix = "";
+      break;
+    }
+
+  if (log_conf.log_file)
+    {
+      FILE *f = log_conf.log_file;
+      fprintf (f, "%s %s", timestamp (), prefix);
+      vfprintf (f, fmt, ap);
+      fprintf (f, "\n");
+    }
+  else
+    {
+      __android_log_vprint (ANDROID_LOG_INFO, "HICN FACEMGR", fmt, ap);
+    }
 
 #else
 
-	if (level > log_conf.log_level)
-		return;
-
-	switch (level) {
-		case LOG_FATAL:
-			prefix = "FATAL: ";
-			break;
-		case LOG_ERROR:
-			prefix = "ERROR: ";
-			break;
-		case LOG_WARN:
-			prefix = "WARNING: ";
-			break;
-		case LOG_INFO:
-			prefix = "";
-			break;
-		case LOG_DEBUG:
-			prefix = "DEBUG: ";
-			break;
-		case LOG_TRACE:
-			prefix = "TRACE: ";
-			break;
-		default:
-			prefix = "";
-			break;
-	}
-	FILE *f = log_conf.log_file ? log_conf.log_file : stdout;
-	fprintf(f, "%s %s", timestamp(), prefix);
-	vfprintf(f, fmt, ap);
-	fprintf(f, "\n");
+  if (level > log_conf.log_level)
+    return;
+
+  switch (level)
+    {
+    case LOG_FATAL:
+      prefix = "FATAL: ";
+      break;
+    case LOG_ERROR:
+      prefix = "ERROR: ";
+      break;
+    case LOG_WARN:
+      prefix = "WARNING: ";
+      break;
+    case LOG_INFO:
+      prefix = "";
+      break;
+    case LOG_DEBUG:
+      prefix = "DEBUG: ";
+      break;
+    case LOG_TRACE:
+      prefix = "TRACE: ";
+      break;
+    default:
+      prefix = "";
+      break;
+    }
+  FILE *f = log_conf.log_file ? log_conf.log_file : stdout;
+  fprintf (f, "%s %s", timestamp (), prefix);
+  vfprintf (f, fmt, ap);
+  fprintf (f, "\n");
 #ifdef DEBUG
-	fflush(f);
+  fflush (f);
 #endif
 #endif
 }
 
-void _log(int level, const char *fmt, ...)
+void
+_log (int level, const char *fmt, ...)
 {
-	va_list ap;
+  va_list ap;
 
-	va_start(ap, fmt);
-	_log_va(level, fmt, ap);
-	va_end(ap);
+  va_start (ap, fmt);
+  _log_va (level, fmt, ap);
+  va_end (ap);
 }
 
 #ifdef HAVE_BACKTRACE
 #include <execinfo.h>
 
-void print_trace(void)
+void
+print_trace (void)
 {
-	void *array[32];
-	size_t size;
+  void *array[32];
+  size_t size;
 
-	size = backtrace(array, 32);
-	fflush(conf.log_file);
-	backtrace_symbols_fd(array, size, fileno(conf.log_file));
+  size = backtrace (array, 32);
+  fflush (conf.log_file);
+  backtrace_symbols_fd (array, size, fileno (conf.log_file));
 }
 #endif
 
-void fatal(char *fmt, ...)
+void
+fatal (char *fmt, ...)
 {
-	va_list ap;
+  va_list ap;
 
-	va_start(ap, fmt);
-	_log_va(LOG_FATAL, fmt, ap);
-	va_end(ap);
+  va_start (ap, fmt);
+  _log_va (LOG_FATAL, fmt, ap);
+  va_end (ap);
 
 #ifdef HAVE_BACKTRACE
-	print_trace();
+  print_trace ();
 #endif
 
-	exit(200);
+  exit (200);
 }
+
+const char *loglevel_str[] = { "fatal", "error", "warn",
+			       "info",	"debug", "trace" };
+
+int
+loglevel_from_str (const char *loglevel)
+{
+  for (int i = 0; i <= LOG_TRACE; i++)
+    {
+      if (strcasecmp (loglevel, loglevel_str[i]) == 0)
+	return i;
+    }
+  return -1;
+}
\ No newline at end of file
diff --git a/lib/src/util/windows/dlfcn.c b/lib/src/util/windows/dlfcn.c
index c8173cdb0..5606074a0 100644
--- a/lib/src/util/windows/dlfcn.c
+++ b/lib/src/util/windows/dlfcn.c
@@ -1,4 +1,4 @@
-/* dlfcn.c */ 
+/* dlfcn.c */
 
 #include <inttypes.h>
 #include <stdio.h>
@@ -6,60 +6,68 @@
 #include <string.h>
 #include <windows.h>
 
-static struct {
-    long lasterror;
-    const char *err_rutin;
-} var = {
-    0,
-    NULL
-};
+static struct
+{
+  long lasterror;
+  const char *err_rutin;
+} var = { 0, NULL };
 
-void *dlopen (const char *filename, int flags)
+void *
+dlopen (const char *filename, int flags)
 {
-    HINSTANCE hInst;
+  HINSTANCE hInst;
 
-    hInst= LoadLibrary (filename);
-    if (hInst==NULL) {
-        var.lasterror = GetLastError ();
-        var.err_rutin = "dlopen";
+  hInst = LoadLibrary (filename);
+  if (hInst == NULL)
+    {
+      var.lasterror = GetLastError ();
+      var.err_rutin = "dlopen";
     }
-    return hInst;
+  return hInst;
 }
 
-int dlclose (void *handle)
+int
+dlclose (void *handle)
 {
-    BOOL ok;
-    int rc= 0;
+  BOOL ok;
+  int rc = 0;
 
-    ok= FreeLibrary ((HINSTANCE)handle);
-    if (! ok) {
-        var.lasterror = GetLastError ();
-        var.err_rutin = "dlclose";
-        rc= -1;
+  ok = FreeLibrary ((HINSTANCE) handle);
+  if (!ok)
+    {
+      var.lasterror = GetLastError ();
+      var.err_rutin = "dlclose";
+      rc = -1;
     }
-    return rc;
+  return rc;
 }
 
-void *dlsym (void *handle, const char *name)
+void *
+dlsym (void *handle, const char *name)
 {
-    FARPROC fp;
+  FARPROC fp;
 
-    fp= GetProcAddress ((HINSTANCE)handle, name);
-    if (!fp) {
-        var.lasterror = GetLastError ();
-        var.err_rutin = "dlsym";
+  fp = GetProcAddress ((HINSTANCE) handle, name);
+  if (!fp)
+    {
+      var.lasterror = GetLastError ();
+      var.err_rutin = "dlsym";
     }
-    return (void *)(intptr_t)fp;
+  return (void *) (intptr_t) fp;
 }
 
-const char *dlerror (void)
+const char *
+dlerror (void)
 {
-static char errstr [88];
+  static char errstr[88];
 
-    if (var.lasterror) {
-        sprintf (errstr, "%s error #%ld", var.err_rutin, var.lasterror);
-        return errstr;
-    } else {
-        return NULL;
+  if (var.lasterror)
+    {
+      snprintf (errstr, 88, "%s error #%ld", var.err_rutin, var.lasterror);
+      return errstr;
+    }
+  else
+    {
+      return NULL;
     }
 }
\ No newline at end of file