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>

1 files changed, 0 insertions, 177 deletions

diff --git a/libtransport/src/io_modules/forwarder/udp_tunnel_listener.cc b/libtransport/src/io_modules/forwarder/udp_tunnel_listener.cc
deleted file mode 100644
index d047cc568..000000000
--- a/libtransport/src/io_modules/forwarder/udp_tunnel_listener.cc
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
- */
-
-#include <glog/logging.h>
-#include <hicn/transport/utils/hash.h>
-#include <io_modules/forwarder/udp_tunnel.h>
-#include <io_modules/forwarder/udp_tunnel_listener.h>
-
-#ifndef LINUX
-namespace std {
-size_t hash<asio::ip::udp::endpoint>::operator()(
-    const asio::ip::udp::endpoint &endpoint) const {
-  auto hash_ip = endpoint.address().is_v4()
-                     ? endpoint.address().to_v4().to_ulong()
-                     : utils::hash::fnv32_buf(
-                           endpoint.address().to_v6().to_bytes().data(), 16);
-  uint16_t port = endpoint.port();
-  return utils::hash::fnv32_buf(&port, 2, hash_ip);
-}
-}  // namespace std
-#endif
-
-namespace transport {
-namespace core {
-
-UdpTunnelListener::~UdpTunnelListener() {}
-
-void UdpTunnelListener::close() {
-  strand_->post([this]() {
-    if (socket_->is_open()) {
-      socket_->close();
-    }
-  });
-}
-
-#ifdef LINUX
-void UdpTunnelListener::readHandler(std::error_code ec) {
-  DLOG_IF(INFO, VLOG_IS_ON(3)) << "UdpTunnelConnector receive packet";
-
-  if (TRANSPORT_EXPECT_TRUE(!ec)) {
-    if (current_position_ == 0) {
-      for (int i = 0; i < Connector::max_burst; i++) {
-        auto read_buffer = Connector::getRawBuffer();
-        iovecs_[i][0].iov_base = read_buffer.first;
-        iovecs_[i][0].iov_len = read_buffer.second;
-        msgs_[i].msg_hdr.msg_iov = iovecs_[i];
-        msgs_[i].msg_hdr.msg_iovlen = 1;
-        msgs_[i].msg_hdr.msg_name = &remote_endpoints_[i];
-        msgs_[i].msg_hdr.msg_namelen = sizeof(remote_endpoints_[i]);
-      }
-    }
-
-    int res = recvmmsg(socket_->native_handle(), msgs_ + current_position_,
-                       Connector::max_burst - current_position_, MSG_DONTWAIT,
-                       nullptr);
-    if (res < 0) {
-      LOG(ERROR) << "Error in  recvmmsg.";
-      return;
-    }
-
-    for (int i = 0; i < res; i++) {
-      auto packet = Connector::getPacketFromBuffer(
-          reinterpret_cast<uint8_t *>(
-              msgs_[current_position_].msg_hdr.msg_iov[0].iov_base),
-          msgs_[current_position_].msg_len);
-      auto connector_id =
-          utils::hash::fnv64_buf(msgs_[current_position_].msg_hdr.msg_name,
-                                 msgs_[current_position_].msg_hdr.msg_namelen);
-
-      auto connector = connectors_.find(connector_id);
-      if (connector == connectors_.end()) {
-        // Create new connector corresponding to new client
-
-        /*
-         * Get the remote endpoint for this particular message
-         */
-        using namespace asio::ip;
-        if (local_endpoint_.address().is_v4()) {
-          auto addr = reinterpret_cast<struct sockaddr_in *>(
-              &remote_endpoints_[current_position_]);
-          address_v4::bytes_type address_bytes;
-          std::copy_n(reinterpret_cast<uint8_t *>(&addr->sin_addr),
-                      address_bytes.size(), address_bytes.begin());
-          address_v4 address(address_bytes);
-          remote_endpoint_ = udp::endpoint(address, ntohs(addr->sin_port));
-        } else {
-          auto addr = reinterpret_cast<struct sockaddr_in6 *>(
-              &remote_endpoints_[current_position_]);
-          address_v6::bytes_type address_bytes;
-          std::copy_n(reinterpret_cast<uint8_t *>(&addr->sin6_addr),
-                      address_bytes.size(), address_bytes.begin());
-          address_v6 address(address_bytes);
-          remote_endpoint_ = udp::endpoint(address, ntohs(addr->sin6_port));
-        }
-
-        /**
-         * Create new connector sharing the same socket of this listener.
-         */
-        auto ret = connectors_.emplace(
-            connector_id,
-            std::make_shared<UdpTunnelConnector>(
-                socket_, strand_, receive_callback_,
-                [](Connector *, const std::error_code &) {}, [](Connector *) {},
-                [](Connector *) {}, std::move(remote_endpoint_)));
-        connector = ret.first;
-        connector->second->setConnectorId(connector_id);
-      }
-
-      /**
-       * Use connector callback to process incoming message.
-       */
-      UdpTunnelConnector *c =
-          dynamic_cast<UdpTunnelConnector *>(connector->second.get());
-      c->doRecvPacket(*packet);
-
-      ++current_position_;
-    }
-
-    doRecvPacket();
-  } else if (ec.value() == static_cast<int>(std::errc::operation_canceled)) {
-    LOG(ERROR) << "The connection has been closed by the application.";
-    return;
-  } else {
-    LOG(ERROR) << ec.value() << " " << ec.message();
-  }
-}
-#endif
-
-void UdpTunnelListener::doRecvPacket() {
-#ifdef LINUX
-#if ((ASIO_VERSION / 100 % 1000) < 11)
-  socket_->async_receive(
-      asio::null_buffers(),
-#else
-  socket_->async_wait(
-      asio::ip::tcp::socket::wait_read,
-#endif
-      std::bind(&UdpTunnelListener::readHandler, this, std::placeholders::_1));
-#else
-  read_msg_ = Connector::getRawBuffer();
-  socket_->async_receive_from(
-      asio::buffer(read_msg_.first, read_msg_.second), remote_endpoint_,
-      [this](std::error_code ec, std::size_t length) {
-        if (TRANSPORT_EXPECT_TRUE(!ec)) {
-          auto packet = Connector::getPacketFromBuffer(read_msg_.first, length);
-          auto connector_id =
-              std::hash<asio::ip::udp::endpoint>{}(remote_endpoint_);
-          auto connector = connectors_.find(connector_id);
-          if (connector == connectors_.end()) {
-            // Create new connector corresponding to new client
-            auto ret = connectors_.emplace(
-                connector_id, std::make_shared<UdpTunnelConnector>(
-                                  socket_, strand_, receive_callback_,
-                                  [](Connector *, const std::error_code &) {},
-                                  [](Connector *) {}, [](Connector *) {},
-                                  std::move(remote_endpoint_)));
-            connector = ret.first;
-            connector->second->setConnectorId(connector_id);
-          }
-
-          UdpTunnelConnector *c =
-              dynamic_cast<UdpTunnelConnector *>(connector->second.get());
-          c->doRecvPacket(*packet);
-          doRecvPacket();
-        } else if (ec.value() ==
-                   static_cast<int>(std::errc::operation_canceled)) {
-          LOG(ERROR) << "The connection has been closed by the application.";
-          return;
-        } else {
-          LOG(ERROR) << ec.value() << " " << ec.message();
-        }
-      });
-#endif
-}
-}  // namespace core
-}  // namespace transport
\ No newline at end of file