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>

2 files changed, 130 insertions, 73 deletions

diff --git a/apps/ping/src/ping_client.cc b/apps/ping/src/ping_client.cc
index 24e0bf3ed..0217f2f8c 100644
--- a/apps/ping/src/ping_client.cc
+++ b/apps/ping/src/ping_client.cc
@@ -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:
@@ -16,7 +16,9 @@
 #include <hicn/transport/auth/verifier.h>
 #include <hicn/transport/core/global_object_pool.h>
 #include <hicn/transport/core/interest.h>
+#include <hicn/transport/interfaces/global_conf_interface.h>
 #include <hicn/transport/interfaces/portal.h>
+#include <hicn/transport/utils/chrono_typedefs.h>
 
 #include <asio/signal_set.hpp>
 #include <asio/steady_timer.hpp>
@@ -32,7 +34,7 @@ namespace core {
 
 namespace ping {
 
-typedef std::map<uint64_t, uint64_t> SendTimeMap;
+typedef std::map<uint64_t, utils::SteadyTime::TimePoint> SendTimeMap;
 typedef auth::AsymmetricVerifier Verifier;
 
 class Configuration {
@@ -77,17 +79,12 @@ class Configuration {
   }
 };
 
-class Client : interface::Portal::ConsumerCallback {
+class Client : interface::Portal::TransportCallback {
  public:
-  Client(Configuration *c)
-      : portal_(), signals_(portal_.getIoService(), SIGINT) {
+  Client(Configuration *c) : portal_(), signals_(io_service_, SIGINT) {
     // Let the main thread to catch SIGINT
-    portal_.connect();
-    portal_.setConsumerCallback(this);
-
     signals_.async_wait(std::bind(&Client::afterSignal, this));
-
-    timer_.reset(new asio::steady_timer(portal_.getIoService()));
+    timer_.reset(new asio::steady_timer(portal_.getThread().getIoService()));
     config_ = c;
     sequence_number_ = config_->first_suffix_;
     last_jump_ = 0;
@@ -105,19 +102,28 @@ class Client : interface::Portal::ConsumerCallback {
 
   void ping() {
     std::cout << "start ping" << std::endl;
-    doPing();
-    portal_.runEventsLoop();
+
+    portal_.getThread().add([this]() {
+      portal_.connect();
+      portal_.registerTransportCallback(this);
+      doPing();
+    });
+
+    io_service_.run();
+  }
+
+  void onInterest(Interest &interest) override {
+    throw errors::RuntimeException("Unexpected interest received.");
   }
 
   void onContentObject(Interest &interest, ContentObject &object) override {
-    uint64_t rtt = 0;
+    double rtt = 0;
 
     if (!config_->certificate_.empty()) {
-      auto t0 = std::chrono::steady_clock::now();
+      auto t0 = utils::SteadyTime::now();
       if (verifier_.verifyPacket(&object)) {
-        auto t1 = std::chrono::steady_clock::now();
-        auto dt =
-            std::chrono::duration_cast<std::chrono::microseconds>(t1 - t0);
+        auto t1 = utils::SteadyTime::now();
+        auto dt = utils::SteadyTime::getDurationUs(t0, t1);
         std::cout << "Verification time: " << dt.count() << std::endl;
         std::cout << "<<< Signature Ok." << std::endl;
       } else {
@@ -127,10 +133,9 @@ class Client : interface::Portal::ConsumerCallback {
 
     auto it = send_timestamps_.find(interest.getName().getSuffix());
     if (it != send_timestamps_.end()) {
-      rtt = std::chrono::duration_cast<std::chrono::microseconds>(
-                std::chrono::steady_clock::now().time_since_epoch())
-                .count() -
-            it->second;
+      rtt =
+          utils::SteadyTime::getDurationUs(it->second, utils::SteadyTime::now())
+              .count();
       send_timestamps_.erase(it);
     }
 
@@ -206,7 +211,11 @@ class Client : interface::Portal::ConsumerCallback {
     }
   }
 
-  void onError(std::error_code ec) override {}
+  void onError(const std::error_code &ec) override {
+    std::cout << "Aborting ping due to internal error: " << ec.message()
+              << std::endl;
+    afterSignal();
+  }
 
   void doPing() {
     const Name interest_name(config_->name_, (uint32_t)sequence_number_);
@@ -254,10 +263,7 @@ class Client : interface::Portal::ConsumerCallback {
 
     if (!config_->quiet_) std::cout << std::endl;
 
-    send_timestamps_[sequence_number_] =
-        std::chrono::duration_cast<std::chrono::microseconds>(
-            std::chrono::steady_clock::now().time_since_epoch())
-            .count();
+    send_timestamps_[sequence_number_] = utils::SteadyTime::now();
 
     portal_.sendInterest(std::move(interest));
 
@@ -267,7 +273,11 @@ class Client : interface::Portal::ConsumerCallback {
     if (sent_ < config_->maxPing_) {
       this->timer_->expires_from_now(
           std::chrono::microseconds(config_->pingInterval_));
-      this->timer_->async_wait([this](const std::error_code e) { doPing(); });
+      this->timer_->async_wait([this](const std::error_code e) {
+        if (!e) {
+          doPing();
+        }
+      });
     }
   }
 
@@ -275,11 +285,11 @@ class Client : interface::Portal::ConsumerCallback {
     std::cout << "Stop ping" << std::endl;
     std::cout << "Sent: " << sent_ << " Received: " << received_
               << " Timeouts: " << timedout_ << std::endl;
-    portal_.stopEventsLoop();
+    io_service_.stop();
   }
 
   void reset() {
-    timer_.reset(new asio::steady_timer(portal_.getIoService()));
+    timer_.reset(new asio::steady_timer(portal_.getThread().getIoService()));
     sequence_number_ = config_->first_suffix_;
     last_jump_ = 0;
     processed_ = 0;
@@ -291,6 +301,7 @@ class Client : interface::Portal::ConsumerCallback {
 
  private:
   SendTimeMap send_timestamps_;
+  asio::io_service io_service_;
   interface::Portal portal_;
   asio::signal_set signals_;
   uint64_t sequence_number_;
@@ -337,6 +348,11 @@ void help() {
             << std::endl;
   std::cout << "-q                quiet, not prints (default false)"
             << std::endl;
+  std::cerr << "-z <io_module>    IO module to use. Default: hicnlightng_module"
+            << std::endl;
+  std::cerr << "-F <conf_file>    Path to optional configuration file for "
+               "libtransport"
+            << std::endl;
   std::cout << "-H                prints this message" << std::endl;
 }
 
@@ -350,7 +366,11 @@ int main(int argc, char *argv[]) {
   int opt;
   std::string producer_certificate = "";
 
-  while ((opt = getopt(argc, argv, "j::t:i:m:s:d:n:l:f:c:SAOqVDH")) != -1) {
+  std::string conf_file;
+  transport::interface::global_config::IoModuleConfiguration io_config;
+  io_config.name = "hicnlightng_module";
+
+  while ((opt = getopt(argc, argv, "j::t:i:m:s:d:n:l:f:c:SAOqVDHz:F:")) != -1) {
     switch (opt) {
       case 't':
         c->ttl_ = (uint8_t)std::stoi(optarg);
@@ -406,6 +426,12 @@ int main(int argc, char *argv[]) {
       case 'c':
         c->certificate_ = std::string(optarg);
         break;
+      case 'z':
+        io_config.name = optarg;
+        break;
+      case 'F':
+        conf_file = optarg;
+        break;
       case 'H':
       default:
         help();
@@ -413,16 +439,24 @@ int main(int argc, char *argv[]) {
     }
   }
 
+  /**
+   * IO module configuration
+   */
+  io_config.set();
+
+  /**
+   * Parse config file
+   */
+  transport::interface::global_config::parseConfigurationFile(conf_file);
+
   auto ping = std::make_unique<Client>(c);
 
   auto t0 = std::chrono::steady_clock::now();
   ping->ping();
   auto t1 = std::chrono::steady_clock::now();
 
-  std::cout
-      << "Elapsed time: "
-      << std::chrono::duration_cast<std::chrono::microseconds>(t1 - t0).count()
-      << std::endl;
+  std::cout << "Elapsed time: "
+            << utils::SteadyTime::getDurationUs(t0, t1).count() << std::endl;
 
 #ifdef _WIN32
   WSACleanup();
diff --git a/apps/ping/src/ping_server.cc b/apps/ping/src/ping_server.cc
index baf9c6698..3ffbc7325 100644
--- a/apps/ping/src/ping_server.cc
+++ b/apps/ping/src/ping_server.cc
@@ -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:
@@ -21,10 +21,10 @@
 #include <openssl/applink.c>
 #endif
 
-#include <hicn/transport/auth/identity.h>
 #include <hicn/transport/auth/signer.h>
 #include <hicn/transport/core/content_object.h>
 #include <hicn/transport/core/interest.h>
+#include <hicn/transport/interfaces/global_conf_interface.h>
 #include <hicn/transport/utils/string_tokenizer.h>
 
 #include <asio.hpp>
@@ -36,24 +36,13 @@ namespace interface {
 using HashAlgorithm = core::HashAlgorithm;
 using CryptoSuite = auth::CryptoSuite;
 
-auth::Identity setProducerIdentity(std::string keystore_name,
-                                   std::string keystore_password,
-                                   auth::CryptoHashType hash_algorithm) {
-  if (access(keystore_name.c_str(), F_OK) != -1) {
-    return auth::Identity(keystore_name, keystore_password, hash_algorithm);
-  } else {
-    return auth::Identity(keystore_name, keystore_password,
-                          CryptoSuite::RSA_SHA256, 1024, 365, "producer-test");
-  }
-}
-
 class CallbackContainer {
   const std::size_t log2_content_object_buffer_size = 12;
 
  public:
   CallbackContainer(const Name &prefix, uint32_t object_size, bool verbose,
                     bool dump, bool quite, bool flags, bool reset, uint8_t ttl,
-                    auth::Identity *identity, bool sign, uint32_t lifetime)
+                    auth::Signer *signer, bool sign, uint32_t lifetime)
       : buffer_(object_size, 'X'),
         content_objects_((std::uint32_t)(1 << log2_content_object_buffer_size)),
         mask_((std::uint16_t)(1 << log2_content_object_buffer_size) - 1),
@@ -64,7 +53,7 @@ class CallbackContainer {
         flags_(flags),
         reset_(reset),
         ttl_(ttl),
-        identity_(identity),
+        signer_(signer),
         sign_(sign) {
     core::Packet::Format format;
 
@@ -151,8 +140,8 @@ class CallbackContainer {
 
       if (!quite_) std::cout << std::endl;
 
-      if (sign_) {
-        identity_->getSigner()->signPacket(content_object.get());
+      if (sign_ && signer_) {
+        signer_->signPacket(content_object.get());
       }
 
       p.produce(*content_object);
@@ -170,33 +159,43 @@ class CallbackContainer {
   bool flags_;
   bool reset_;
   uint8_t ttl_;
-  auth::Identity *identity_;
+  auth::Signer *signer_;
   bool sign_;
 };
 
 void help() {
   std::cout << "usage: hicn-preoducer-ping [options]" << std::endl;
   std::cout << "PING options" << std::endl;
-  std::cout << "-s <val>  object content size (default 1350B)" << std::endl;
-  std::cout << "-n <val>  hicn name (default b001::/64)" << std::endl;
-  std::cout << "-f        set tcp flags according to the flag received "
-               "(default false)"
+  std::cout << "-s <val>          object content size (default 1350B)"
             << std::endl;
-  std::cout << "-l        data lifetime" << std::endl;
-  std::cout << "-r        always reply with a reset flag (default false)"
+  std::cout << "-n <val>          hicn name (default b001::/64)" << std::endl;
+  std::cout << "-f                set tcp flags according to the flag received "
+               "                  (default false)"
             << std::endl;
-  std::cout << "-t        set ttl (default 64)" << std::endl;
+  std::cout << "-l                data lifetime" << std::endl;
+  std::cout
+      << "-r                always reply with a reset flag (default false)"
+      << std::endl;
+  std::cout << "-t                set ttl (default 64)" << std::endl;
   std::cout << "OUTPUT options" << std::endl;
-  std::cout << "-V        verbose, prints statistics about the messagges sent "
-               "and received (default false)"
+  std::cout << "-V                verbose, prints statistics about the "
+               "messagges sent "
+               "                  and received (default false)"
+            << std::endl;
+  std::cout << "-D                dump, dumps sent and received packets "
+               "(default false)"
             << std::endl;
-  std::cout << "-D        dump, dumps sent and received packets (default false)"
+  std::cout << "-q                quite, not prints (default false)"
+            << std::endl;
+  std::cerr << "-z <io_module>    IO module to use. Default: hicnlightng_module"
+            << std::endl;
+  std::cerr << "-F <conf_file>    Path to optional configuration file for "
+               "libtransport"
             << std::endl;
-  std::cout << "-q        quite, not prints (default false)" << std::endl;
 #ifndef _WIN32
-  std::cout << "-d        daemon mode" << std::endl;
+  std::cout << "-d                daemon mode" << std::endl;
 #endif
-  std::cout << "-H        prints this message" << std::endl;
+  std::cout << "-H                prints this message" << std::endl;
 }
 
 int main(int argc, char **argv) {
@@ -220,11 +219,15 @@ int main(int argc, char **argv) {
   bool sign = false;
   uint32_t data_lifetime = default_values::content_object_expiry_time;
 
+  std::string conf_file;
+  transport::interface::global_config::IoModuleConfiguration io_config;
+  io_config.name = "hicnlightng_module";
+
   int opt;
 #ifndef _WIN32
-  while ((opt = getopt(argc, argv, "s:n:t:l:qfrVDdHk:p:")) != -1) {
+  while ((opt = getopt(argc, argv, "s:n:t:l:qfrVDdHk:p:z:F:")) != -1) {
 #else
-  while ((opt = getopt(argc, argv, "s:n:t:l:qfrVDHk:p:")) != -1) {
+  while ((opt = getopt(argc, argv, "s:n:t:l:qfrVDHk:p:z:F:")) != -1) {
 #endif
     switch (opt) {
       case 's':
@@ -268,6 +271,12 @@ int main(int argc, char **argv) {
       case 'p':
         keystore_password = optarg;
         break;
+      case 'z':
+        io_config.name = optarg;
+        break;
+      case 'F':
+        conf_file = optarg;
+        break;
       case 'H':
       default:
         help();
@@ -281,6 +290,16 @@ int main(int argc, char **argv) {
   }
 #endif
 
+  /**
+   * IO module configuration
+   */
+  io_config.set();
+
+  /**
+   * Parse config file
+   */
+  transport::interface::global_config::parseConfigurationFile(conf_file);
+
   core::Prefix producer_namespace(name_prefix);
 
   utils::StringTokenizer tokenizer(name_prefix, delimiter);
@@ -290,21 +309,24 @@ int main(int argc, char **argv) {
   if (object_size > 1350) object_size = 1350;
 
   CallbackContainer *stubs;
-  auth::Identity identity = setProducerIdentity(
-      keystore_path, keystore_password, auth::CryptoHashType::SHA256);
+  std::unique_ptr<auth::AsymmetricSigner> signer;
 
   if (sign) {
-    stubs = new CallbackContainer(n, object_size, verbose, dump, quite, flags,
-                                  reset, ttl, &identity, sign, data_lifetime);
+    signer = std::make_unique<auth::AsymmetricSigner>(keystore_path,
+                                                      keystore_password);
+    stubs =
+        new CallbackContainer(n, object_size, verbose, dump, quite, flags,
+                              reset, ttl, signer.get(), sign, data_lifetime);
   } else {
-    auth::Identity *identity = nullptr;
+    auth::Signer *signer = nullptr;
     stubs = new CallbackContainer(n, object_size, verbose, dump, quite, flags,
-                                  reset, ttl, identity, sign, data_lifetime);
+                                  reset, ttl, signer, sign, data_lifetime);
   }
 
   ProducerSocket p;
   p.registerPrefix(producer_namespace);
 
+  p.setSocketOption(GeneralTransportOptions::MAKE_MANIFEST, false);
   p.setSocketOption(GeneralTransportOptions::OUTPUT_BUFFER_SIZE, 0U);
   p.setSocketOption(
       ProducerCallbacksOptions::CACHE_MISS,
@@ -313,6 +335,7 @@ int main(int argc, char **argv) {
                                      std::placeholders::_2, data_lifetime));
 
   p.connect();
+  p.start();
 
   asio::io_service io_service;
   asio::signal_set signal_set(io_service, SIGINT);