Change directory architecture to use 2 separated projects.

Each projects, binder and generator, has to be compiled separatly.
CAN-binder will host high and low level binding
CAN-config-generator only the generator used for low level binding.
build.sh script just launch both build in their respective dir.

Change-Id: Ic77932660fcca507b23a631d4e4e790f608880ae
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

15 files changed, 2028 insertions, 0 deletions

diff --git a/CAN-binder/low-can-binding/can/can-bus-dev.cpp b/CAN-binder/low-can-binding/can/can-bus-dev.cpp
new file mode 100644
index 0000000..fb76498
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-bus-dev.cpp
@@ -0,0 +1,255 @@
+/*
+* Copyright (C) 2015, 2016, 2017 "IoT.bzh"
+* Author "Romain Forlot" <romain.forlot@iot.bzh>
+* Author "Loïc Collignon" <loic.collignon@iot.bzh>
+*
+* 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 <map>
+#include <mutex>
+#include <unistd.h>
+#include <string.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <linux/can/raw.h>
+
+#include "can-bus-dev.hpp"
+
+#include "can-bus.hpp"
+#include "can-message.hpp"
+#include "../low-can-binding.hpp"
+
+/// @brief Class constructor
+///
+/// @param[in] dev_name - String representing the device name into the linux /dev tree
+/// @param[in] address - integer identifier of the bus, set using init_can_dev from can_bus_t.
+can_bus_dev_t::can_bus_dev_t(const std::string& dev_name, int32_t address)
+	: device_name_{dev_name}, address_{address}
+{}
+
+std::string can_bus_dev_t::get_device_name() const
+{
+	return device_name_;
+}
+
+uint32_t can_bus_dev_t::get_address() const
+{
+	return address_;
+}
+
+/// @brief Open the can socket and returning it
+///
+///  We try to open CAN socket and apply the following options
+///  timestamp received messages and pass the socket to FD mode.
+///
+/// @return -1 if something wrong.
+int can_bus_dev_t::open()
+{
+	const int canfd_on = 1;
+	const int timestamp_on = 1;
+	struct ifreq ifr;
+	struct timeval timeout;
+
+	DEBUG(binder_interface, "open: CAN Handler socket : %d", can_socket_.socket());
+	if (can_socket_)
+		return 0;
+
+	can_socket_.open(PF_CAN, SOCK_RAW, CAN_RAW);
+	if (can_socket_)
+	{
+		DEBUG(binder_interface, "open: CAN Handler socket correctly initialized : %d", can_socket_.socket());
+
+		// Set timeout for read
+		can_socket_.setopt(SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout));
+
+		// Set timestamp for receveid frame
+		if (can_socket_.setopt(SOL_SOCKET, SO_TIMESTAMP, &timestamp_on, sizeof(timestamp_on)) < 0)
+			WARNING(binder_interface, "open: setsockopt SO_TIMESTAMP error: %s", ::strerror(errno));
+		DEBUG(binder_interface, "open: Switch CAN Handler socket to use fd mode");
+
+		// try to switch the socket into CAN_FD mode
+		if (can_socket_.setopt(SOL_CAN_RAW, CAN_RAW_FD_FRAMES, &canfd_on, sizeof(canfd_on)) < 0)
+		{
+			NOTICE(binder_interface, "open: Can not switch into CAN Extended frame format.");
+			is_fdmode_on_ = false;
+		}
+		else
+		{
+			DEBUG(binder_interface, "open: Correctly set up CAN socket to use FD frames.");
+			is_fdmode_on_ = true;
+		}
+
+		// Attempts to open a socket to CAN bus
+		::strcpy(ifr.ifr_name, device_name_.c_str());
+		DEBUG(binder_interface, "open: ifr_name is : %s", ifr.ifr_name);
+		if(::ioctl(can_socket_.socket(), SIOCGIFINDEX, &ifr) < 0)
+		{
+			ERROR(binder_interface, "open: ioctl failed. Error was : %s", strerror(errno));
+		}
+		else
+		{
+			txAddress_.can_family = AF_CAN;
+			txAddress_.can_ifindex = ifr.ifr_ifindex;
+
+			// And bind it to txAddress
+			DEBUG(binder_interface, "Bind the socket");
+			if (can_socket_.bind((struct sockaddr *)&txAddress_, sizeof(txAddress_)) < 0)
+				ERROR(binder_interface, "Bind failed. %s", strerror(errno));
+			else return 0;
+		}
+		close();
+	}
+	else ERROR(binder_interface, "open: socket could not be created. Error was : %s", ::strerror(errno));
+	return -1;
+}
+
+/// @brief Close the bus.
+///
+/// @return interger return value of socket.close() function
+int can_bus_dev_t::close()
+{
+	return can_socket_.close();
+}
+
+/// @brief Read the can socket and retrieve canfd_frame.
+///
+///  Read operation are blocking and we try to read CANFD frame
+///  rather than classic CAN frame. CANFD frame are retro compatible.
+can_message_t can_bus_dev_t::read()
+{
+	ssize_t nbytes;
+	struct canfd_frame cfd;
+
+	// Test that socket is really opened
+	if (!can_socket_)
+	{
+		ERROR(binder_interface, "read: Socket unavailable. Closing thread.");
+		is_running_ = false;
+	}
+
+	nbytes = ::read(can_socket_.socket(), &cfd, CANFD_MTU);
+
+	// if we did not fit into CAN sized messages then stop_reading.
+	if (nbytes != CANFD_MTU && nbytes != CAN_MTU)
+	{
+		if (errno == ENETDOWN)
+			ERROR(binder_interface, "read: %s CAN device down", device_name_.c_str());
+		ERROR(binder_interface, "read: Incomplete CAN(FD) frame");
+		::memset(&cfd, 0, sizeof(cfd));
+	}
+
+	DEBUG(binder_interface, "read: Found id: %X, length: %X, data %02X%02X%02X%02X%02X%02X%02X%02X", cfd.can_id, cfd.len,
+							cfd.data[0], cfd.data[1], cfd.data[2], cfd.data[3], cfd.data[4], cfd.data[5], cfd.data[6], cfd.data[7]);
+	return can_message_t::convert_from_canfd_frame(cfd, nbytes);
+}
+
+/// @brief start reading threads and set flag is_running_
+/// @param[in] can_bus reference can_bus_t. it will be passed to the thread to allow using can_bus_t queue.
+void can_bus_dev_t::start_reading(can_bus_t& can_bus)
+{
+	DEBUG(binder_interface, "Launching reading thread");
+	is_running_ = true;
+	th_reading_ = std::thread(&can_bus_dev_t::can_reader, this, std::ref(can_bus));
+	if(!th_reading_.joinable())
+		is_running_ = false;
+}
+
+/// @brief stop the reading thread setting flag is_running_ to false and and wait that the thread finish its job.
+void can_bus_dev_t::stop_reading()
+{
+	is_running_ = false;
+}
+
+/// @brief Thread function used to read the can socket.
+/// @param[in] can_bus - object to be used to read the can socket
+void can_bus_dev_t::can_reader(can_bus_t& can_bus)
+{
+	while(is_running_)
+	{
+		can_message_t msg = read();
+		{
+			std::lock_guard<std::mutex> can_message_lock(can_bus.get_can_message_mutex());
+			can_bus.push_new_can_message(msg);
+		}
+		can_bus.get_new_can_message_cv().notify_one();
+	}
+}
+
+/// @brief Send a can message from a can_message_t object.
+/// @param[in] can_msg - the can message object to send
+///
+/// @return 0 if message snet, -1 if something wrong.
+int can_bus_dev_t::send(can_message_t& can_msg)
+{
+	ssize_t nbytes;
+	canfd_frame f;
+
+	f = can_msg.convert_to_canfd_frame();
+
+	if(can_socket_)
+	{
+		nbytes = ::sendto(can_socket_.socket(), &f, sizeof(struct canfd_frame), 0,
+			(struct sockaddr*)&txAddress_, sizeof(txAddress_));
+		if (nbytes == -1)
+		{
+			ERROR(binder_interface, "send_can_message: Sending CAN frame failed.");
+			return -1;
+		}
+		return (int)nbytes;
+	}
+	else
+	{
+		ERROR(binder_interface, "send_can_message: socket not initialized. Attempt to reopen can device socket.");
+		open();
+	}
+	return 0;
+}
+
+/// @brief Static method used to send diagnostic CAN message
+/// that follow isotp SendShimsMessage signature. This method is launched
+/// from diagnostic manager's' same name method. It will use the diagnostic
+/// manager configured CAN bus device to send the CAN message.
+///
+/// @param[in] arbitration_id - CAN arbitration id.
+/// @param[in] data - CAN message payload to send
+/// @param[in] size - size of the data to send
+///
+/// @return True if message sent, false if not.
+bool can_bus_dev_t::shims_send(const uint32_t arbitration_id, const uint8_t* data, const uint8_t size)
+{
+	ssize_t nbytes;
+	canfd_frame f;
+
+	f.can_id = arbitration_id;
+	f.len = size;
+	::memcpy(f.data, data, size);
+
+	if(can_socket_)
+	{
+		nbytes = ::sendto(can_socket_.socket(), &f, sizeof(struct canfd_frame), 0,
+			(struct sockaddr*)&txAddress_, sizeof(txAddress_));
+		if (nbytes == -1)
+		{
+			ERROR(binder_interface, "send_can_message: Sending CAN frame failed.");
+			return false;
+		}
+		return true;
+	}
+	else
+	{
+		ERROR(binder_interface, "send_can_message: socket not initialized. Attempt to reopen can device socket.");
+		open();
+	}
+	return false;
+}
diff --git a/CAN-binder/low-can-binding/can/can-bus-dev.hpp b/CAN-binder/low-can-binding/can/can-bus-dev.hpp
new file mode 100644
index 0000000..a612e7d
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-bus-dev.hpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ * Author "Loïc Collignon" <loic.collignon@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <linux/can.h>
+#include <string>
+#include <thread>
+
+#include "../utils/socket.hpp"
+
+class can_bus_t;
+class can_message_t;
+
+/// @brief Object representing a can device. Handle opening, closing and reading on the
+/// socket. This is the low level object to be initialized and use by can_bus_t.
+class can_bus_dev_t
+{
+private:
+	std::string device_name_; ///< a string identifier identitfying the linux CAN device.
+	utils::socket_t can_socket_;
+
+	int32_t address_; ///< an identifier used through binding that refer to that device
+
+	bool is_fdmode_on_; ///< boolean telling if whether or not the can socket use fdmode.
+	struct sockaddr_can txAddress_; /// < internal member using to bind to the socket
+
+	std::thread th_reading_; ///< Thread handling read the socket can device filling can_message_q_ queue of can_bus_t
+	bool is_running_ = false; ///< boolean telling whether or not reading is running or not
+	void can_reader(can_bus_t& can_bus);
+
+public:
+	can_bus_dev_t(const std::string& dev_name, int32_t address);
+
+	std::string get_device_name() const;
+	uint32_t get_address() const;
+
+	int open();
+	int close();
+
+	void start_reading(can_bus_t& can_bus);
+
+	void stop_reading();
+
+	can_message_t read();
+
+	int send(can_message_t& can_msg);
+	bool shims_send(const uint32_t arbitration_id, const uint8_t* data, const uint8_t size);
+};
diff --git a/CAN-binder/low-can-binding/can/can-bus.cpp b/CAN-binder/low-can-binding/can/can-bus.cpp
new file mode 100644
index 0000000..33f58fd
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-bus.cpp
@@ -0,0 +1,398 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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 <map>
+#include <cerrno>
+#include <vector>
+#include <string>
+#include <fcntl.h>
+#include <unistd.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <json-c/json.h>
+#include <linux/can/raw.h>
+
+#include "can-bus.hpp"
+
+#include "can-signals.hpp"
+#include "can-decoder.hpp"
+#include "../configuration.hpp"
+#include "../utils/signals.hpp"
+#include "../utils/openxc-utils.hpp"
+
+extern "C"
+{
+	#include <afb/afb-binding.h>
+}
+
+/// @brief Class constructor
+///
+/// @param[in] conf_file - handle to the json configuration file.
+can_bus_t::can_bus_t(int conf_file)
+	: conf_file_{conf_file}
+{
+}
+
+std::map<std::string, std::shared_ptr<can_bus_dev_t>> can_bus_t::can_devices_;
+
+/// @brief Will make the decoding operation on a classic CAN message. It will not
+/// handle CAN commands nor diagnostic messages that have their own method to get
+/// this happens.
+///
+/// It will add to the vehicle_message queue the decoded message and tell the event push
+/// thread to process it.
+///
+/// @param[in] can_message - a single CAN message from the CAN socket read, to be decode.
+///
+/// @return How many signals has been decoded.
+int can_bus_t::process_can_signals(can_message_t& can_message)
+{
+	int processed_signals = 0;
+	std::vector <can_signal_t*> signals;
+	openxc_DynamicField search_key, decoded_message;
+	openxc_VehicleMessage vehicle_message;
+
+	// First we have to found which can_signal_t it is
+	search_key = build_DynamicField((double)can_message.get_id());
+	configuration_t::instance().find_can_signals(search_key, signals);
+
+	// Decoding the message ! Don't kill the messenger !
+	for(auto& sig : signals)
+	{
+		std::lock_guard<std::mutex> subscribed_signals_lock(get_subscribed_signals_mutex());
+		std::map<std::string, struct afb_event>& s = get_subscribed_signals();
+
+		// DEBUG message to make easier debugger STL containers...
+		//DEBUG(binder_interface, "Operator[] key char: %s, event valid? %d", sig.generic_name, afb_event_is_valid(s[sig.generic_name]));
+		//DEBUG(binder_interface, "Operator[] key string: %s, event valid? %d", sig.generic_name, afb_event_is_valid(s[std::string(sig.generic_name)]));
+		//DEBUG(binder_interface, "Nb elt matched char: %d", (int)s.count(sig.generic_name));
+		//DEBUG(binder_interface, "Nb elt matched string: %d", (int)s.count(std::string(sig.generic_name));
+		if( s.find(sig->get_name()) != s.end() && afb_event_is_valid(s[sig->get_name()]))
+		{
+			decoded_message = decoder_t::translateSignal(*sig, can_message, configuration_t::instance().get_can_signals());
+
+			openxc_SimpleMessage s_message = build_SimpleMessage(sig->get_name(), decoded_message);
+			vehicle_message = build_VehicleMessage(s_message);
+
+			std::lock_guard<std::mutex> decoded_can_message_lock(decoded_can_message_mutex_);
+			push_new_vehicle_message(vehicle_message);
+			processed_signals++;
+		}
+	}
+
+	DEBUG(binder_interface, "process_can_signals: %d/%d CAN signals processed.", processed_signals, (int)signals.size());
+	return processed_signals;
+}
+
+/// @brief Will make the decoding operation on a diagnostic CAN message.Then it find the subscribed signal
+/// corresponding and will add the vehicle_message to the queue of event to pushed before notifying
+/// the event push thread to process it.
+///
+/// @param[in] manager - the diagnostic manager object that handle diagnostic communication
+/// @param[in] can_message - a single CAN message from the CAN socket read, to be decode.
+///
+/// @return How many signals has been decoded.
+int can_bus_t::process_diagnostic_signals(diagnostic_manager_t& manager, const can_message_t& can_message)
+{
+	int processed_signals = 0;
+
+	std::lock_guard<std::mutex> subscribed_signals_lock(get_subscribed_signals_mutex());
+	std::map<std::string, struct afb_event>& s = get_subscribed_signals();
+
+	openxc_VehicleMessage vehicle_message = manager.find_and_decode_adr(can_message);
+	if( (vehicle_message.has_simple_message && vehicle_message.simple_message.has_name) &&
+		(s.find(vehicle_message.simple_message.name) != s.end() && afb_event_is_valid(s[vehicle_message.simple_message.name])))
+	{
+		std::lock_guard<std::mutex> decoded_can_message_lock(decoded_can_message_mutex_);
+		push_new_vehicle_message(vehicle_message);
+		processed_signals++;
+	}
+
+	return processed_signals;
+}
+
+/// @brief thread to decoding raw CAN messages.
+///
+///  Depending on the nature of message, if arbitration ID matches ID for a diagnostic response
+///  then decoding a diagnostic message else use classic CAN signals decoding functions.
+///
+/// It will take from the can_message_q_ queue the next can message to process then it search
+///  about signal subscribed if there is a valid afb_event for it. We only decode signal for which a
+///  subscription has been made. Can message will be decoded using translateSignal that will pass it to the
+///  corresponding decoding function if there is one assigned for that signal. If not, it will be the default
+///  noopDecoder function that will operate on it.
+///
+///  TODO: make diagnostic messages parsing optionnal.
+void can_bus_t::can_decode_message()
+{
+	can_message_t can_message;
+
+	while(is_decoding_)
+	{
+		{
+			std::unique_lock<std::mutex> can_message_lock(can_message_mutex_);
+			new_can_message_cv_.wait(can_message_lock);
+			while(!can_message_q_.empty())
+			{
+				can_message = next_can_message();
+
+				if(configuration_t::instance().get_diagnostic_manager().is_diagnostic_response(can_message))
+					process_diagnostic_signals(configuration_t::instance().get_diagnostic_manager(), can_message);
+				else
+					process_can_signals(can_message);
+			}
+		}
+		new_decoded_can_message_.notify_one();
+	}
+}
+
+/// @brief thread to push events to suscribers. It will read subscribed_signals map to look
+/// which are events that has to be pushed.
+void can_bus_t::can_event_push()
+{
+	openxc_VehicleMessage v_message;
+	openxc_SimpleMessage s_message;
+	json_object* jo;
+
+	while(is_pushing_)
+	{
+		std::unique_lock<std::mutex> decoded_can_message_lock(decoded_can_message_mutex_);
+		new_decoded_can_message_.wait(decoded_can_message_lock);
+		while(!vehicle_message_q_.empty())
+		{
+			v_message = next_vehicle_message();
+
+			s_message = get_simple_message(v_message);
+			{
+				std::lock_guard<std::mutex> subscribed_signals_lock(get_subscribed_signals_mutex());
+				std::map<std::string, struct afb_event>& s = get_subscribed_signals();
+				if(s.find(std::string(s_message.name)) != s.end() && afb_event_is_valid(s[std::string(s_message.name)]))
+				{
+					jo = json_object_new_object();
+					jsonify_simple(s_message, jo);
+					if(afb_event_push(s[std::string(s_message.name)], jo) == 0)
+						on_no_clients(std::string(s_message.name));
+				}
+			}
+		}
+	}
+}
+
+/// @brief Will initialize threads that will decode
+///  and push subscribed events.
+void can_bus_t::start_threads()
+{
+	is_decoding_ = true;
+	th_decoding_ = std::thread(&can_bus_t::can_decode_message, this);
+	if(!th_decoding_.joinable())
+		is_decoding_ = false;
+
+	is_pushing_ = true;
+	th_pushing_ = std::thread(&can_bus_t::can_event_push, this);
+	if(!th_pushing_.joinable())
+		is_pushing_ = false;
+}
+
+/// @brief Will stop all threads holded by can_bus_t object
+///  which are decoding and pushing then will wait that's
+/// they'll finish their job.
+void can_bus_t::stop_threads()
+{
+	is_decoding_ = false;
+	is_pushing_ = false;
+}
+
+/// @brief Will initialize can_bus_dev_t objects after reading
+/// the configuration file passed in the constructor. All CAN buses
+/// Initialized here will be added to a vector holding them for
+/// inventory and later access.
+///
+/// That will initialize CAN socket reading too using a new thread.
+///
+/// @return 0 if ok, other if not.
+int can_bus_t::init_can_dev()
+{
+	std::vector<std::string> devices_name;
+	int i = 0;
+	size_t t;
+
+	devices_name = read_conf();
+
+	if (! devices_name.empty())
+	{
+		t = devices_name.size();
+
+		for(const auto& device : devices_name)
+		{
+			can_bus_t::can_devices_[device] = std::make_shared<can_bus_dev_t>(device, i);
+			if (can_bus_t::can_devices_[device]->open() == 0)
+			{
+				DEBUG(binder_interface, "Start reading thread");
+				NOTICE(binder_interface, "%s device opened and reading", device.c_str());
+				can_bus_t::can_devices_[device]->start_reading(*this);
+				i++;
+			}
+			else
+			{
+				ERROR(binder_interface, "Can't open device %s", device.c_str());
+				return 1;
+			}
+		}
+
+		NOTICE(binder_interface, "Initialized %d/%d can bus device(s)", i, (int)t);
+		return 0;
+	}
+	ERROR(binder_interface, "init_can_dev: Error at CAN device initialization. No devices read from configuration file. Did you specify canbus JSON object ?");
+	return 1;
+}
+
+/// @brief read the conf_file_ and will parse json objects
+/// in it searching for canbus objects devices name.
+///
+/// @return Vector of can bus device name string.
+std::vector<std::string> can_bus_t::read_conf()
+{
+	std::vector<std::string> ret;
+	json_object *jo, *canbus;
+	int n, i;
+	const char* taxi;
+
+	FILE *fd = fdopen(conf_file_, "r");
+	if (fd)
+	{
+		std::string fd_conf_content;
+		std::fseek(fd, 0, SEEK_END);
+		fd_conf_content.resize(std::ftell(fd));
+		std::rewind(fd);
+		std::fread(&fd_conf_content[0], 1, fd_conf_content.size(), fd);
+		std::fclose(fd);
+
+		DEBUG(binder_interface, "Configuration file content : %s", fd_conf_content.c_str());
+		jo = json_tokener_parse(fd_conf_content.c_str());
+
+		if (jo == NULL || !json_object_object_get_ex(jo, "canbus", &canbus))
+		{
+			ERROR(binder_interface, "Can't find canbus node in the configuration file. Please review it.");
+			ret.clear();
+		}
+		else if (json_object_get_type(canbus) != json_type_array)
+		{
+			taxi = json_object_get_string(canbus);
+			DEBUG(binder_interface, "Can bus found: %s", taxi);
+			ret.push_back(std::string(taxi));
+		}
+		else
+		{
+			n = json_object_array_length(canbus);
+			for (i = 0 ; i < n ; i++)
+				ret.push_back(json_object_get_string(json_object_array_get_idx(canbus, i)));
+		}
+		return ret;
+	}
+	ERROR(binder_interface, "Problem at reading the conf file");
+	ret.clear();
+	return ret;
+}
+
+/// @brief return new_can_message_cv_ member
+///
+/// @return  return new_can_message_cv_ member
+std::condition_variable& can_bus_t::get_new_can_message_cv()
+{
+	return new_can_message_cv_;
+}
+
+/// @brief return can_message_mutex_ member
+///
+/// @return  return can_message_mutex_ member
+std::mutex& can_bus_t::get_can_message_mutex()
+{
+	return can_message_mutex_;
+}
+
+/// @brief Return first can_message_t on the queue
+///
+/// @return a can_message_t
+can_message_t can_bus_t::next_can_message()
+{
+	can_message_t can_msg;
+
+	if(!can_message_q_.empty())
+	{
+		can_msg = can_message_q_.front();
+		can_message_q_.pop();
+		DEBUG(binder_interface, "next_can_message: Here is the next can message : id %X, length %X, data %02X%02X%02X%02X%02X%02X%02X%02X", can_msg.get_id(), can_msg.get_length(),
+			can_msg.get_data()[0], can_msg.get_data()[1], can_msg.get_data()[2], can_msg.get_data()[3], can_msg.get_data()[4], can_msg.get_data()[5], can_msg.get_data()[6], can_msg.get_data()[7]);
+		return can_msg;
+	}
+
+	return can_msg;
+}
+
+/// @brief Push a can_message_t into the queue
+///
+/// @param[in] can_msg - the const reference can_message_t object to push into the queue
+void can_bus_t::push_new_can_message(const can_message_t& can_msg)
+{
+	can_message_q_.push(can_msg);
+}
+
+/// @brief Return first openxc_VehicleMessage on the queue
+///
+/// @return a openxc_VehicleMessage containing a decoded can message
+openxc_VehicleMessage can_bus_t::next_vehicle_message()
+{
+	openxc_VehicleMessage v_msg;
+
+	if(! vehicle_message_q_.empty())
+	{
+		v_msg = vehicle_message_q_.front();
+		vehicle_message_q_.pop();
+		DEBUG(binder_interface, "next_vehicle_message: next vehicle message poped");
+		return v_msg;
+	}
+
+	return v_msg;
+}
+
+/// @brief Push a openxc_VehicleMessage into the queue
+///
+/// @param[in] v_msg - const reference openxc_VehicleMessage object to push into the queue
+void can_bus_t::push_new_vehicle_message(const openxc_VehicleMessage& v_msg)
+{
+	vehicle_message_q_.push(v_msg);
+}
+
+/// @brief Return a map with the can_bus_dev_t initialized
+///
+/// @return map can_bus_dev_m_ map
+const std::map<std::string, std::shared_ptr<can_bus_dev_t>>& can_bus_t::get_can_devices() const
+{
+	return can_bus_t::can_devices_;
+}
+
+/// @brief Return the shared pointer on the can_bus_dev_t initialized 
+/// with device_name "bus"
+///
+/// @param[in] bus - CAN bus device name to retrieve.
+///
+/// @return A shared pointer on an object can_bus_dev_t
+std::shared_ptr<can_bus_dev_t> can_bus_t::get_can_device(std::string bus)
+{
+	return can_bus_t::can_devices_[bus];
+}
diff --git a/CAN-binder/low-can-binding/can/can-bus.hpp b/CAN-binder/low-can-binding/can/can-bus.hpp
new file mode 100644
index 0000000..eb47476
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-bus.hpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ * Author "Loïc Collignon" <loic.collignon@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <mutex>
+#include <queue>
+#include <thread>
+#include <linux/can.h>
+#include <condition_variable>
+
+#include "openxc.pb.h"
+#include "can-message.hpp"
+#include "can-bus-dev.hpp"
+#include "../diagnostic/active-diagnostic-request.hpp"
+
+#include "../low-can-binding.hpp"
+
+// TODO actual max is 32 but dropped to 24 for memory considerations
+#define MAX_ACCEPTANCE_FILTERS 24
+// TODO this takes up a ton of memory
+#define MAX_DYNAMIC_MESSAGE_COUNT 12
+
+#define CAN_ACTIVE_TIMEOUT_S 30
+
+/// @brief Object used to handle decoding and manage event queue to be pushed.
+///
+/// This object is also used to initialize can_bus_dev_t object after reading
+/// json conf file describing the CAN devices to use. Thus, those object will read
+/// on the device the CAN frame and push them into the can_bus_t can_message_q_ queue.
+///
+/// That queue will be later used to be decoded and pushed to subscribers.
+class can_bus_t
+{
+private:
+	int conf_file_; ///< configuration file handle used to initialize can_bus_dev_t objects.
+
+	void can_decode_message();
+	std::thread th_decoding_; ///< thread that'll handle decoding a can frame
+	bool is_decoding_ = false; ///< boolean member controling thread while loop
+
+	void can_event_push();
+	std::thread th_pushing_; ///< thread that'll handle pushing decoded can frame to subscribers
+	bool is_pushing_ = false; ///< boolean member controling thread while loop
+
+	std::condition_variable new_can_message_cv_; ///< condition_variable use to wait until there is a new CAN message to read
+	std::mutex can_message_mutex_; ///< mutex protecting the can_message_q_ queue.
+	std::queue <can_message_t> can_message_q_; ///< queue that'll store can_message_t to decoded
+
+	std::condition_variable new_decoded_can_message_; ///< condition_variable use to wait until there is a new vehicle message to read from the queue vehicle_message_q_
+	std::mutex decoded_can_message_mutex_;  ///< mutex protecting the vehicle_message_q_ queue.
+	std::queue <openxc_VehicleMessage> vehicle_message_q_; ///< queue that'll store openxc_VehicleMessage to pushed
+
+	static std::map<std::string, std::shared_ptr<can_bus_dev_t>> can_devices_; ///< Can device map containing all can_bus_dev_t objects initialized during init_can_dev function
+
+public:
+	can_bus_t(int conf_file);
+	can_bus_t(can_bus_t&&);
+
+	int init_can_dev();
+	std::vector<std::string> read_conf();
+
+	void start_threads();
+	void stop_threads();
+
+	int process_can_signals(can_message_t& can_message);
+	int process_diagnostic_signals(diagnostic_manager_t& manager, const can_message_t& can_message);
+
+	can_message_t next_can_message();
+	void push_new_can_message(const can_message_t& can_msg);
+	std::mutex& get_can_message_mutex();
+	std::condition_variable& get_new_can_message_cv();
+
+	openxc_VehicleMessage next_vehicle_message();
+	void push_new_vehicle_message(const openxc_VehicleMessage& v_msg);
+
+	const std::map<std::string, std::shared_ptr<can_bus_dev_t>>& get_can_devices() const;
+	static std::shared_ptr<can_bus_dev_t> get_can_device(std::string bus);
+};
diff --git a/CAN-binder/low-can-binding/can/can-command.hpp b/CAN-binder/low-can-binding/can/can-command.hpp
new file mode 100644
index 0000000..4cf20cb
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-command.hpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include "openxc.pb.h"
+#include "can-signals.hpp"
+
+///
+/// @brief The type signature for a function to handle a custom OpenXC command.
+///
+/// @param[in] name - the name of the received command.
+/// @param[in] value - the value of the received command, in a DynamicField. The actual type
+///		may be a number, string or bool.
+/// @param[in] event - an optional event from the received command, in a DynamicField. The
+///		actual type may be a number, string or bool.
+/// @param[in] signals - The list of all signals.
+/// @param[in] signalCount - The length of the signals array.
+///
+typedef void (*CommandHandler)(const char* name, openxc_DynamicField* value,
+		openxc_DynamicField* event, can_signal_t* signals, int signalCount);
+
+/// @struct CanCommand
+/// @brief The structure to represent a supported custom OpenXC command.
+///
+/// For completely customized CAN commands without a 1-1 mapping between an
+/// OpenXC message from the host and a CAN signal, you can define the name of the
+/// command and a custom function to handle it in the VI. An example is
+/// the "turn_signal_status" command in OpenXC, which has a value of "left" or
+/// "right". The vehicle may have separate CAN signals for the left and right
+/// turn signals, so you will need to implement a custom command handler to send
+/// the correct signals.
+///
+/// Command handlers are also useful if you want to trigger multiple CAN messages
+/// or signals from a signal OpenXC message.
+///
+typedef struct {
+	const char* generic_name; /*!< generic_name - The name of the command.*/
+	CommandHandler handler; /*!< handler - An function to process the received command's data and perform some
+ 							 *	action.*/
+} CanCommand;
diff --git a/CAN-binder/low-can-binding/can/can-decoder.cpp b/CAN-binder/low-can-binding/can/can-decoder.cpp
new file mode 100644
index 0000000..8843059
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-decoder.cpp
@@ -0,0 +1,233 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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 "can-decoder.hpp"
+
+#include "canutil/read.h"
+#include "../utils/openxc-utils.hpp"
+
+/// @brief Parse the signal's bitfield from the given data and return the raw
+/// value.
+///
+/// @param[in] signal - The signal to parse from the data.
+/// @param[in] message - can_message_t to parse
+///
+/// @return Returns the raw value of the signal parsed as a bitfield from the given byte
+/// array.
+///
+float decoder_t::parseSignalBitfield(can_signal_t& signal, const can_message_t& message)
+{
+	 return bitfield_parse_float(message.get_data(), CAN_MESSAGE_SIZE,
+			signal.get_bit_position(), signal.get_bit_size(), signal.get_factor(),
+			signal.get_offset());
+}
+
+/// @brief Wrap a raw CAN signal value in a DynamicField without modification.
+///
+/// This is an implementation of the SignalDecoder type signature, and can be
+/// used directly in the can_signal_t.decoder field.
+///
+/// @param[in] signal - The details of the signal that contains the state mapping.
+/// @param[in] signals - The list of all signals
+/// @param[in] value - The numerical value that will be wrapped in a DynamicField.
+/// @param[out] send - An output argument that will be set to false if the value should
+///     not be sent for any reason.
+///
+/// @return Returns a DynamicField with the original, unmodified raw CAN signal value as
+/// its numeric value. The 'send' argument will not be modified as this decoder
+/// always succeeds.
+///
+openxc_DynamicField decoder_t::noopDecoder(can_signal_t& signal,
+		const std::vector<can_signal_t>& signals, float value, bool* send)
+{
+	openxc_DynamicField decoded_value = build_DynamicField(value);
+
+	return decoded_value;
+}
+/// @brief Coerces a numerical value to a boolean.
+///
+/// This is an implementation of the SignalDecoder type signature, and can be
+/// used directly in the can_signal_t.decoder field.
+///
+/// @param[in] signal  - The details of the signal that contains the state mapping.
+/// @param[in] signals - The list of all signals
+/// @param[in] value - The numerical value that will be converted to a boolean.
+/// @param[out] send - An output argument that will be set to false if the value should
+///     not be sent for any reason.
+///
+/// @return Returns a DynamicField with a boolean value of false if the raw signal value
+/// is 0.0, otherwise true. The 'send' argument will not be modified as this
+/// decoder always succeeds.
+///
+openxc_DynamicField decoder_t::booleanDecoder(can_signal_t& signal,
+		const std::vector<can_signal_t>& signals, float value, bool* send)
+{
+	openxc_DynamicField decoded_value = build_DynamicField(value == 0.0 ? false : true);
+
+	return decoded_value;
+}
+/// @brief Update the metadata for a signal and the newly received value.
+///
+/// This is an implementation of the SignalDecoder type signature, and can be
+/// used directly in the can_signal_t.decoder field.
+///
+/// This function always flips 'send' to false.
+///
+/// @param[in] signal  - The details of the signal that contains the state mapping.
+/// @param[in] signals - The list of all signals.
+/// @param[in] value - The numerical value that will be converted to a boolean.
+/// @param[out] send - This output argument will always be set to false, so the caller will
+///      know not to publish this value to the pipeline.
+///
+/// @return Return value is undefined.
+///
+openxc_DynamicField decoder_t::ignoreDecoder(can_signal_t& signal,
+		const std::vector<can_signal_t>& signals, float value, bool* send)
+{
+	if(send)
+	  *send = false;
+
+	openxc_DynamicField decoded_value;
+
+	return decoded_value;
+}
+
+/// @brief Find and return the corresponding string state for a CAN signal's
+/// raw integer value.
+///
+/// This is an implementation of the SignalDecoder type signature, and can be
+/// used directly in the can_signal_t.decoder field.
+///
+/// @param[in] signal  - The details of the signal that contains the state mapping.
+/// @param[in] signals - The list of all signals.
+/// @param[in] value - The numerical value that should map to a state.
+/// @param[out] send - An output argument that will be set to false if the value should
+///     not be sent for any reason.
+///
+/// @return Returns a DynamicField with a string value if a matching state is found in
+/// the signal. If an equivalent isn't found, send is sent to false and the
+/// return value is undefined.
+///
+openxc_DynamicField decoder_t::stateDecoder(can_signal_t& signal,
+		const std::vector<can_signal_t>& signals, float value, bool* send)
+{
+	const std::string signal_state = signal.get_states((uint8_t)value);
+	openxc_DynamicField decoded_value = build_DynamicField(signal_state);
+	if(signal_state.size() <= 0)
+	{
+		*send = false;
+		ERROR(binder_interface, "stateDecoder: No state found with index: %d", (int)value);
+	}
+	return decoded_value;
+}
+
+
+/// @brief Parse a signal from a CAN message, apply any required transforations
+///      to get a human readable value and public the result to the pipeline.
+///
+/// If the can_signal_t has a non-NULL 'decoder' field, the raw CAN signal value
+/// will be passed to the decoder before publishing.
+///
+/// @param[in] signal - The details of the signal to decode and forward.
+/// @param[in] message - The received CAN message that should contain this signal.
+/// @param[in] signals - an array of all active signals.
+///
+/// The decoder returns an openxc_DynamicField, which may contain a number,
+/// string or boolean.
+///
+openxc_DynamicField decoder_t::translateSignal(can_signal_t& signal, can_message_t& message,
+	const std::vector<can_signal_t>& signals)
+{
+	float value = decoder_t::parseSignalBitfield(signal, message);
+	DEBUG(binder_interface, "translateSignal: Decoded message from parseSignalBitfield: %f", value);
+
+	bool send = true;
+	// Must call the decoders every time, regardless of if we are going to
+	// decide to send the signal or not.
+	openxc_DynamicField decoded_value = decoder_t::decodeSignal(signal,
+			value, signals, &send);
+
+	signal.set_received(true);
+	signal.set_last_value(value);
+	return decoded_value;
+}
+
+/// @brief Parse a signal from a CAN message and apply any required
+/// transforations to get a human readable value.
+///
+/// If the can_signal_t has a non-NULL 'decoder' field, the raw CAN signal value
+/// will be passed to the decoder before returning.
+///
+/// @param[in] signal - The details of the signal to decode and forward.
+/// @param[in] value - The numerical value that will be converted to a boolean.
+/// @param[in] signals - an array of all active signals.
+/// @param[out] send - An output parameter that will be flipped to false if the value could
+///      not be decoded.
+///
+/// @return The decoder returns an openxc_DynamicField, which may contain a number,
+/// string or boolean. If 'send' is false, the return value is undefined.
+///
+openxc_DynamicField decoder_t::decodeSignal( can_signal_t& signal,
+		float value, const std::vector<can_signal_t>& signals, bool* send)
+{
+	SignalDecoder decoder = signal.get_decoder() == nullptr ?
+							noopDecoder : signal.get_decoder();
+	openxc_DynamicField decoded_value = decoder(signal, signals,
+			value, send);
+	return decoded_value;
+}
+
+/// @brief Decode a transformed, human readable value from an raw CAN signal
+/// already parsed from a CAN message.
+///
+/// This is the same as decodeSignal but you must parse the bitfield value of the signal from the CAN
+/// message yourself. This is useful if you need that raw value for something
+/// else.
+///
+/// @param[in] signal - The details of the signal to decode and forward.
+/// @param[in] message - Raw CAN message to decode
+/// @param[in] signals - an array of all active signals.
+/// @param[out] send - An output parameter that will be flipped to false if the value could
+///      not be decoded.
+///
+openxc_DynamicField decoder_t::decodeSignal( can_signal_t& signal,
+		const can_message_t& message, const std::vector<can_signal_t>& signals, bool* send)
+{
+	float value = parseSignalBitfield(signal, message);
+	return decodeSignal(signal, value, signals, send);
+}
+
+
+///
+/// @brief Decode the payload of an OBD-II PID.
+///
+/// This function matches the type signature for a DiagnosticResponseDecoder, so
+/// it can be used as the decoder for a DiagnosticRequest. It returns the decoded
+/// value of the PID, using the standard formulas (see
+/// http://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_01).
+///
+/// @param[in] response - the received DiagnosticResponse (the data is in response.payload,
+///  a byte array). This is most often used when the byte order is
+///  signiticant, i.e. with many OBD-II PID formulas.
+/// @param[in] parsed_payload - the entire payload of the response parsed as an int.
+///
+/// @return Float decoded value.
+///
+float decoder_t::decode_obd2_response(const DiagnosticResponse* response, float parsed_payload)
+{
+	return diagnostic_decode_obd2_pid(response);
+}
\ No newline at end of file
diff --git a/CAN-binder/low-can-binding/can/can-decoder.hpp b/CAN-binder/low-can-binding/can/can-decoder.hpp
new file mode 100644
index 0000000..ebe1de2
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-decoder.hpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include "can-signals.hpp"
+#include "can-message.hpp"
+#include "openxc.pb.h"
+
+class decoder_t
+{
+public:
+	static float parseSignalBitfield(can_signal_t& signal, const can_message_t& message);
+
+	static openxc_DynamicField stateDecoder(can_signal_t& signal, const std::vector<can_signal_t>& signals,
+			float value, bool* send);
+	static openxc_DynamicField booleanDecoder(can_signal_t& signal, const std::vector<can_signal_t>& signals,
+			float value, bool* send);
+	static openxc_DynamicField ignoreDecoder(can_signal_t& signal, const std::vector<can_signal_t>& signals,
+			float value, bool* send);
+	static openxc_DynamicField noopDecoder(can_signal_t& signal, const std::vector<can_signal_t>& signals,
+			float value, bool* send);
+
+	static openxc_DynamicField translateSignal(can_signal_t& signal, can_message_t& message,
+		const std::vector<can_signal_t>& signals);
+
+	static openxc_DynamicField decodeSignal(can_signal_t& signal, const can_message_t& message,
+			const std::vector<can_signal_t>& signals, bool* send);
+
+	static openxc_DynamicField decodeSignal(can_signal_t& signal, float value,
+		const std::vector<can_signal_t>& signals, bool* send);
+
+	static float decode_obd2_response(const DiagnosticResponse* response, float parsed_payload);
+
+};
\ No newline at end of file
diff --git a/CAN-binder/low-can-binding/can/can-message-definition.cpp b/CAN-binder/low-can-binding/can/can-message-definition.cpp
new file mode 100644
index 0000000..206d0b0
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-message-definition.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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 "can-message-definition.hpp"
+
+can_message_definition_t::can_message_definition_t(std::uint8_t message_set_id, const std::string bus)
+	: message_set_id_{message_set_id}, bus_{bus}, last_value_{CAN_MESSAGE_SIZE}
+{}
+
+can_message_definition_t::can_message_definition_t(std::uint8_t message_set_id,
+	const std::string bus,
+	uint32_t id,
+	frequency_clock_t frequency_clock,
+	bool force_send_changed)
+	: message_set_id_{message_set_id},
+	  bus_{bus},
+	  id_{id},
+	  frequency_clock_{frequency_clock},
+	  force_send_changed_{force_send_changed},
+	  last_value_{CAN_MESSAGE_SIZE}
+{}
+
+can_message_definition_t::can_message_definition_t(std::uint8_t message_set_id,
+	const std::string bus,
+	uint32_t id,
+	can_message_format_t format,
+	frequency_clock_t frequency_clock,
+	bool force_send_changed)
+	: message_set_id_{message_set_id},
+	bus_{bus},
+	id_{id},
+	format_{format},
+	frequency_clock_{frequency_clock},
+	force_send_changed_{force_send_changed},
+	last_value_{CAN_MESSAGE_SIZE}
+{}
+
+uint32_t can_message_definition_t::get_id() const
+{
+	return id_;
+}
\ No newline at end of file
diff --git a/CAN-binder/low-can-binding/can/can-message-definition.hpp b/CAN-binder/low-can-binding/can/can-message-definition.hpp
new file mode 100644
index 0000000..98cb2c5
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-message-definition.hpp
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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.
+ */
+
+/**
+ * @class can_message_definition_t
+ *
+ * @brief The definition of a CAN message. This includes a lot of metadata, so
+ * to save memory this struct should not be used for storing incoming and
+ * outgoing CAN messages.
+ */
+
+#pragma once
+
+#include <vector>
+#include <memory>
+
+#include "can-bus-dev.hpp"
+#include "can-message.hpp"
+#include "../utils/timer.hpp"
+
+class can_message_definition_t
+{
+private:
+	std::uint8_t message_set_id_;
+	std::string bus_; /*!< bus_ - Address of CAN bus device. */
+	uint32_t id_; /*!< id_ - The ID of the message.*/
+	can_message_format_t format_; /*!< format_ - the format of the message's ID.*/
+	frequency_clock_t frequency_clock_; /*!<  clock_ - an optional frequency clock to control the output of this
+							*      message, if sent raw, or simply to mark the max frequency for custom
+							*      handlers to retrieve.*/
+	bool force_send_changed_; /*!< force_send_changed_ - If true, regardless of the frequency, it will send CAN
+ 							 *	message if it has changed when using raw passthrough.*/
+	std::vector<uint8_t> last_value_; /*!< last_value_ - The last received value of the message. Defaults to undefined.
+ 										  *	This is required for the forceSendChanged functionality, as the stack
+ 										  *	needs to compare an incoming CAN message with the previous frame.*/
+	
+public:
+	can_message_definition_t(std::uint8_t message_set_id, const std::string bus);
+	can_message_definition_t(std::uint8_t message_set_id, const std::string bus, uint32_t id, frequency_clock_t frequency_clock, bool force_send_changed);
+	can_message_definition_t(std::uint8_t message_set_id, const std::string bus, uint32_t id, can_message_format_t format, frequency_clock_t frequency_clock, bool force_send_changed);
+
+	uint32_t get_id() const;
+};
diff --git a/CAN-binder/low-can-binding/can/can-message-set.cpp b/CAN-binder/low-can-binding/can/can-message-set.cpp
new file mode 100644
index 0000000..a9f8cf2
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-message-set.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ * Author "Loïc Collignon" <loic.collignon@iot.bzh>
+ *
+ * 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 "can-message-set.hpp"
+
+can_message_set_t::can_message_set_t(
+		uint8_t index,
+		const std::string& name,
+		uint8_t can_bus_count,
+		unsigned short can_message_count,
+		unsigned short can_signal_count,
+		unsigned short can_command_count,
+		unsigned short obd2_signal_count)
+	: index_{index}
+	, name_{name}
+	, can_bus_count_{can_bus_count}
+	, can_message_count_{can_message_count}
+	, can_signal_count_{can_signal_count}
+	, can_command_count_{can_command_count}
+	, obd2_signal_count_{obd2_signal_count}
+{
+}
diff --git a/CAN-binder/low-can-binding/can/can-message-set.hpp b/CAN-binder/low-can-binding/can/can-message-set.hpp
new file mode 100644
index 0000000..94e2d8d
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-message-set.hpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ * Author "Loïc Collignon" <loic.collignon@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <cstdint>
+#include <string>
+
+/// @brief A parent wrapper for a particular set of CAN messages and associated
+/// CAN buses(e.g. a vehicle or program).
+class can_message_set_t
+{
+private:
+	uint8_t index_; /// < A numerical ID for the message set, ideally the index in an array for fast lookup
+	const std::string name_; /// < The name of the message set.
+	uint8_t can_bus_count_; /// < The number of CAN buses defined for this message set.
+	uint16_t can_message_count_; /// < The number of CAN messages (across all buses) defined for this message set.
+	uint16_t can_signal_count_; /// < The number of CAN signals (across all messages) defined for this message set.
+	uint16_t can_command_count_; /// < The number of CanCommmands defined for this message set.
+	uint16_t obd2_signal_count_; /// < The number of obd2 signals defined for this message set.
+
+public:
+	can_message_set_t(
+			uint8_t index,
+			const std::string& name,
+			uint8_t can_bus_count,
+			short unsigned int can_message_count,
+			short unsigned int can_signal_count,
+			short unsigned int can_command_count,
+			short unsigned int obd2_signal_count);
+
+};
diff --git a/CAN-binder/low-can-binding/can/can-message.cpp b/CAN-binder/low-can-binding/can/can-message.cpp
new file mode 100644
index 0000000..f61de67
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-message.cpp
@@ -0,0 +1,264 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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 "can-message.hpp"
+
+#include <cstring>
+
+#include "../low-can-binding.hpp"
+
+///
+/// @brief Class constructor
+///
+/// Constructor about can_message_t class.
+///
+can_message_t::can_message_t()
+	: maxdlen_{0}, id_{0}, length_{0}, format_{can_message_format_t::ERROR}, rtr_flag_{false}, flags_{0}
+{}
+
+can_message_t::can_message_t(uint8_t maxdlen,
+	uint32_t id,
+	uint8_t length,
+	can_message_format_t format,
+	bool rtr_flag,
+	uint8_t flags,
+	std::vector<uint8_t> data)
+	:  maxdlen_{maxdlen},
+	id_{id},
+	length_{length},
+	format_{format},
+	rtr_flag_{rtr_flag},
+	flags_{flags},
+	data_{data}
+{}
+
+///
+/// @brief Retrieve id_ member value.
+///
+/// @return id_ class member
+///
+uint32_t can_message_t::get_id() const
+{
+	return id_;
+}
+
+///
+/// @brief Retrieve RTR flag member.
+///
+/// @return rtr_flags_ class member
+///
+bool can_message_t::get_rtr_flag_() const
+{
+	return rtr_flag_;
+}
+
+///
+/// @brief Retrieve format_ member value.
+///
+/// @return format_ class member
+///
+can_message_format_t can_message_t::get_format() const
+{
+	if (format_ != can_message_format_t::STANDARD || format_ != can_message_format_t::EXTENDED)
+		return can_message_format_t::ERROR;
+	return format_;
+}
+
+///
+/// @brief Retrieve flags_ member value.
+///
+/// @return flags_ class member
+///
+uint8_t can_message_t::get_flags() const
+{
+	return flags_;
+}
+
+///
+/// @brief Retrieve data_ member value.
+///
+/// @return pointer to the first element
+///  of class member data_
+///
+const uint8_t* can_message_t::get_data() const
+{
+	return data_.data();
+}
+
+///
+/// @brief Retrieve length_ member value.
+///
+/// @return length_ class member
+///
+uint8_t can_message_t::get_length() const
+{
+	return length_;
+}
+
+///
+/// @brief Control whether the object is correctly initialized
+///  to be sent over the CAN bus
+///
+/// @return true if object correctly initialized and false if not.
+///
+bool can_message_t::is_correct_to_send()
+{
+	if (id_ != 0 && length_ != 0 && format_ != can_message_format_t::ERROR)
+	{
+		int i;
+		for(i=0;i<CAN_MESSAGE_SIZE;i++)
+			if(data_[i] != 0)
+				return true;
+	}
+	return false;
+}
+
+///
+/// @brief Set format_ member value.
+///
+/// Preferred way to initialize these members by using
+/// convert_from_canfd_frame method.
+///
+/// @param[in] new_format - class member
+///
+void can_message_t::set_format(const can_message_format_t new_format)
+{
+	if(new_format == can_message_format_t::STANDARD || new_format == can_message_format_t::EXTENDED || new_format == can_message_format_t::ERROR)
+		format_ = new_format;
+	else
+		ERROR(binder_interface, "ERROR: Can set format, wrong format chosen");
+}
+
+///
+/// @brief Take a canfd_frame struct to initialize class members
+///
+/// This is the preferred way to initialize class members.
+///
+/// @param[in] frame - canfd_frame to convert coming from a read of CAN socket
+/// @param[in] nbytes - bytes read from socket read operation.
+///
+/// @return A can_message_t object fully initialized with canfd_frame values.
+///
+can_message_t can_message_t::convert_from_canfd_frame(const struct canfd_frame& frame, size_t nbytes)
+{
+	uint8_t maxdlen, length, flags = (uint8_t)NULL;
+	uint32_t id;
+	can_message_format_t format;
+	bool rtr_flag;
+	std::vector<uint8_t> data;
+
+	switch(nbytes)
+	{
+		case CANFD_MTU:
+			DEBUG(binder_interface, "set_max_data_length: Got an CAN FD frame");
+			maxdlen = CANFD_MAX_DLEN;
+			break;
+		case CAN_MTU:
+			DEBUG(binder_interface, "set_max_data_length: Got a legacy CAN frame");
+			maxdlen = CAN_MAX_DLEN;
+			break;
+		default:
+			ERROR(binder_interface, "set_max_data_length: unsupported CAN frame");
+			break;
+	}
+
+	if (frame.can_id & CAN_ERR_FLAG)
+		format = can_message_format_t::ERROR;
+	else if (frame.can_id & CAN_EFF_FLAG)
+		format = can_message_format_t::EXTENDED;
+	else
+		format = can_message_format_t::STANDARD;
+		
+	switch(format)
+	{
+		case can_message_format_t::STANDARD:
+			id = frame.can_id & CAN_SFF_MASK;
+			break;
+		case can_message_format_t::EXTENDED:
+			id = frame.can_id & CAN_EFF_MASK;
+			break;
+		case can_message_format_t::ERROR:
+			id = frame.can_id & (CAN_ERR_MASK|CAN_ERR_FLAG);
+			break;
+		default:
+			ERROR(binder_interface, "ERROR: Can set id, not a compatible format or format not set prior to set id.");
+			break;
+	}
+
+	/* Overwrite length_ if RTR flags is detected.
+	 * standard CAN frames may have RTR enabled. There are no ERR frames with RTR */
+	if (frame.can_id & CAN_RTR_FLAG)
+	{
+		rtr_flag = true;
+		if(frame.len && frame.len <= CAN_MAX_DLC)
+		{
+			if(rtr_flag)
+				length = frame.len& 0xF;
+			else
+			{
+				length = (frame.len > maxdlen) ? maxdlen : frame.len;
+			}
+		}
+	}
+	else
+	{
+		length = (frame.len > maxdlen) ? maxdlen : frame.len;
+
+		/* Flags field only present for CAN FD frames*/
+		if(maxdlen == CANFD_MAX_DLEN)
+				flags = frame.flags & 0xF;
+
+		if (data.capacity() < maxdlen)
+			data.reserve(maxdlen);
+				int i;
+
+			data.clear();
+			/* maxdlen_ is now set at CAN_MAX_DLEN or CANFD_MAX_DLEN, respectively 8 and 64 bytes*/
+			for(i=0;i<maxdlen;i++)
+			{
+				data.push_back(frame.data[i]);
+			};
+
+		DEBUG(binder_interface, "convert_from_canfd_frame: Found id: %X, format: %X, length: %X, data %02X%02X%02X%02X%02X%02X%02X%02X",
+								id, (uint8_t)format, length, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
+	}
+
+	return can_message_t(maxdlen, id, length, format, rtr_flag, flags, data);
+}
+
+///
+/// @brief Take all initialized class's members and build an
+/// canfd_frame struct that can be use to send a CAN message over
+/// the bus.
+///
+/// @return canfd_frame struct built from class members.
+///
+canfd_frame can_message_t::convert_to_canfd_frame()
+{
+	canfd_frame frame;
+
+	if(is_correct_to_send())
+	{
+		frame.can_id = get_id();
+		frame.len = get_length();
+		::memcpy(frame.data, get_data(), length_);
+	}
+	else
+		ERROR(binder_interface, "can_message_t not correctly initialized to be sent");
+
+	return frame;
+}
diff --git a/CAN-binder/low-can-binding/can/can-message.hpp b/CAN-binder/low-can-binding/can/can-message.hpp
new file mode 100644
index 0000000..6fe0317
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-message.hpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <vector>
+#include <string>
+#include <cstdint>
+#include <linux/can.h>
+
+#include "../utils/timer.hpp"
+#include "can-message-set.hpp"
+
+#define CAN_MESSAGE_SIZE 8
+
+class can_bus_dev_t;
+
+/**
+ * @enum can_message_format_t
+ * @brief The ID format for a CAN message.
+ */
+enum class can_message_format_t {
+	STANDARD, /*!< STANDARD - standard 11-bit CAN arbitration ID. */
+	EXTENDED, /*!< EXTENDED - an extended frame, with a 29-bit arbitration ID. */
+	ERROR,    /*!< ERROR - ERROR code used at initialization to signify that it isn't usable'*/
+};
+
+/**
+ * @class can_message_t
+ *
+ * @brief A compact representation of a single CAN message, meant to be used in in/out
+ * buffers.
+ */
+class can_message_t {
+private:
+	uint8_t maxdlen_; /*!< maxdlen_ - Max data length deduce from number of bytes read from the socket.*/
+	uint32_t id_; /*!< id_ - The ID of the message. */
+	uint8_t length_; /*!< length_ - the length of the data array (max 8). */
+	can_message_format_t format_; /*!< format_ - the format of the message's ID.*/
+	bool rtr_flag_; /*!< rtr_flag_ - Telling if the frame has RTR flag positionned. Then frame hasn't data field*/
+	uint8_t flags_; /*!< flags_ - flags of a CAN FD frame. Needed if we catch FD frames.*/
+	std::vector<uint8_t> data_; /*!< data_ - The message's data field with a size of 8 which is the standard about CAN bus messages.*/
+
+public:
+	can_message_t();
+	can_message_t(uint8_t maxdlen, uint32_t id, uint8_t length, can_message_format_t format, bool rtr_flag_, uint8_t flags, std::vector<uint8_t> data);
+
+	uint32_t get_id() const;
+	bool get_rtr_flag_() const;
+	can_message_format_t get_format() const;
+	uint8_t get_flags() const;
+	const uint8_t* get_data() const;
+	uint8_t get_length() const;
+
+	void set_format(const can_message_format_t new_format);
+
+	bool is_correct_to_send();
+
+static can_message_t convert_from_canfd_frame(const struct canfd_frame& frame, size_t nbytes);
+	canfd_frame convert_to_canfd_frame();
+};
diff --git a/CAN-binder/low-can-binding/can/can-signals.cpp b/CAN-binder/low-can-binding/can/can-signals.cpp
new file mode 100644
index 0000000..6211fa1
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-signals.cpp
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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 <fnmatch.h>
+
+#include "can-signals.hpp"
+
+#include "../configuration.hpp"
+#include "../utils/signals.hpp"
+#include "can-decoder.hpp"
+#include "../diagnostic/diagnostic-message.hpp"
+
+std::string can_signal_t::prefix_ = "messages";
+
+can_signal_t::can_signal_t(std::uint8_t message_set_id,
+	std::uint8_t message_id,
+	std::string generic_name,
+	uint8_t bit_position,
+	uint8_t bit_size,
+	float factor,
+	float offset,
+	float min_value,
+	float max_value,
+	frequency_clock_t frequency,
+	bool send_same,
+	bool force_send_changed,
+	std::map<uint8_t, std::string> states,
+	bool writable,
+	SignalDecoder decoder,
+	SignalEncoder encoder,
+	bool received)
+	: message_set_id_{ message_set_id }
+	, message_id_{ message_id }
+	, generic_name_{ generic_name }
+	, bit_position_{ bit_position }
+	, bit_size_{ bit_size }
+	, factor_{ factor }
+	, offset_{ offset }
+	, min_value_{min_value}
+	, max_value_{max_value}
+	, frequency_{frequency}
+	, send_same_{send_same}
+	, force_send_changed_{force_send_changed}
+	, states_{states}
+	, writable_{writable}
+	, decoder_{decoder}
+	, encoder_{encoder}
+	, received_{received}
+	, last_value_{.0f}
+{}
+
+
+const can_message_definition_t& can_signal_t::get_message() const
+{
+	return configuration_t::instance().get_can_message_definition(message_set_id_, message_id_);
+}
+
+const std::string& can_signal_t::get_generic_name() const
+{
+	return generic_name_;
+}
+
+const std::string can_signal_t::get_name() const
+{
+	return prefix_ + "." + generic_name_;
+}
+
+const std::string& can_signal_t::get_prefix() const
+{
+	return prefix_;
+}
+
+uint8_t can_signal_t::get_bit_position() const
+{
+	return bit_position_;
+}
+
+uint8_t can_signal_t::get_bit_size() const
+{
+	return bit_size_;
+}
+
+float can_signal_t::get_factor() const
+{
+	return factor_;
+}
+
+float can_signal_t::get_offset() const
+{
+	return offset_;
+}
+
+float can_signal_t::get_min_value() const
+{
+	return min_value_;
+}	
+
+float can_signal_t::get_max_value() const
+{
+	return max_value_;
+}
+
+frequency_clock_t& can_signal_t::get_frequency()
+{
+	return frequency_;
+}
+
+bool can_signal_t::get_send_same() const
+{
+	return send_same_;
+}
+
+bool can_signal_t::get_force_send_changed() const
+{
+	return force_send_changed_;
+}
+
+const std::map<uint8_t, std::string>& can_signal_t::get_states() const
+{
+	return states_;
+}
+
+const std::string can_signal_t::get_states(uint8_t value)
+{
+	if (value < states_.size())
+		return states_[value];
+	return std::string();
+}
+
+size_t can_signal_t::get_state_count() const
+{
+	return states_.size();
+}
+
+bool can_signal_t::get_writable() const
+{
+	return writable_;
+}
+
+SignalDecoder& can_signal_t::get_decoder()
+{
+	return decoder_;
+}
+
+SignalEncoder& can_signal_t::get_encoder()
+{
+	return encoder_;
+}
+
+bool can_signal_t::get_received() const
+{
+	return received_;
+}
+float can_signal_t::get_last_value() const
+{
+	return last_value_;
+}
+
+void can_signal_t::set_prefix(std::string val)
+{
+	prefix_ = val;
+}
+
+void can_signal_t::set_received(bool r)
+{
+	received_ = r;
+}
+
+void can_signal_t::set_last_value(float val)
+{
+	last_value_ = val;
+}
diff --git a/CAN-binder/low-can-binding/can/can-signals.hpp b/CAN-binder/low-can-binding/can/can-signals.hpp
new file mode 100644
index 0000000..34ebeeb
--- /dev/null
+++ b/CAN-binder/low-can-binding/can/can-signals.hpp
@@ -0,0 +1,158 @@
+///
+/// Copyright (C) 2015, 2016 "IoT.bzh"
+/// Author "Romain Forlot" <romain.forlot@iot.bzh>
+///
+/// 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.
+///
+
+#pragma once
+
+#include <map>
+#include <mutex>
+#include <queue>
+#include <vector>
+#include <string>
+
+#include "openxc.pb.h"
+#include "../utils/timer.hpp"
+#include "can-bus.hpp"
+#include "can-message.hpp"
+#include "can-message-definition.hpp"
+#include "../diagnostic/diagnostic-message.hpp"
+
+extern "C"
+{
+	#include <afb/afb-binding.h>
+	#include <afb/afb-event-itf.h>
+}
+
+#define MESSAGE_SET_ID 0
+
+class can_signal_t;
+
+///
+/// @brief The type signature for a CAN signal decoder.
+///
+/// A SignalDecoder transforms a raw floating point CAN signal into a number,
+/// string or boolean.
+///
+/// @param[in] signal - The CAN signal that we are decoding.
+/// @param[in] signals - The list of all signals.
+/// @param[in] signalCount - The length of the signals array.
+/// @param[in] value - The CAN signal parsed from the message as a raw floating point
+///	value.
+/// @param[out] send - An output parameter. If the decoding failed or the CAN signal should
+///	not send for some other reason, this should be flipped to false.
+///
+/// @return a decoded value in an openxc_DynamicField struct.
+///
+typedef openxc_DynamicField (*SignalDecoder)(can_signal_t& signal,
+		const std::vector<can_signal_t>& signals, float value, bool* send);
+
+///
+/// @brief: The type signature for a CAN signal encoder.
+///
+/// A SignalEncoder transforms a number, string or boolean into a raw floating
+/// point value that fits in the CAN signal.
+///
+/// @param[in] signal - The CAN signal to encode. 
+/// @param[in] value - The dynamic field to encode.
+/// @param[out] send - An output parameter. If the encoding failed or the CAN signal should
+/// not be encoded for some other reason, this will be flipped to false.
+///
+typedef uint64_t (*SignalEncoder)(can_signal_t* signal,
+		openxc_DynamicField* value, bool* send);
+
+class can_signal_t
+{
+private:
+	std::uint8_t message_set_id_;
+	std::uint8_t message_id_;
+	std::string generic_name_; /*!< generic_name_ - The name of the signal to be output.*/
+	static std::string prefix_; /*!< prefix_ - generic_name_ will be prefixed with it. It has to reflect the used protocol.
+						  * which make easier to sort message when the come in.*/
+	uint8_t bit_position_; /*!< bitPosition_ - The starting bit of the signal in its CAN message (assuming
+										*	non-inverted bit numbering, i.e. the most significant bit of
+										*	each byte is 0) */
+	uint8_t bit_size_; /*!< bitSize_ - The width of the bit field in the CAN message. */
+	float factor_; /*!< factor_ - The final value will be multiplied by this factor. Use 1 if you
+							*	don't need a factor. */
+	float offset_; /*!< offset_ - The final value will be added to this offset. Use 0 if you
+							*	don't need an offset. */
+	float min_value_; /*!< min_value_ - The minimum value for the processed signal.*/
+	float max_value_; /*!< max_value_ - The maximum value for the processed signal. */
+	frequency_clock_t frequency_; /*!< frequency_ - A frequency_clock_t struct to control the maximum frequency to
+								*	process and send this signal. To process every value, set the
+								*	clock's frequency to 0. */
+	bool send_same_; /*!< send_same_ - If true, will re-send even if the value hasn't changed.*/
+	bool force_send_changed_; /*!< force_send_changed_ - If true, regardless of the frequency, it will send the
+							   * value if it has changed. */
+	std::map<uint8_t, std::string> states_; /*!< states_ - A map of CAN signal state describing the mapping
+										 * between numerical and string values for valid states. */
+	bool writable_; /*!< writable - True if the signal is allowed to be written from the USB host
+					 *	back to CAN. Defaults to false.*/
+	SignalDecoder decoder_; /*!< decoder_ - An optional function to decode a signal from the bus to a human
+							 * readable value. If NULL, the default numerical decoder is used. */
+	SignalEncoder encoder_; /*!< encoder_ - An optional function to encode a signal value to be written to
+							 * CAN into a byte array. If NULL, the default numerical encoder
+							 * is used. */
+	bool received_; /*!< received_ - True if this signal has ever been received.*/
+	float last_value_; /*!< lastValue_ - The last received value of the signal. If 'received' is false,
+						*	this value is undefined. */
+
+public:
+	can_signal_t(
+		std::uint8_t message_set_id,
+		std::uint8_t message_id,
+		std::string generic_name,
+		uint8_t bit_position,
+		uint8_t bit_size,
+		float factor,
+		float offset,
+		float min_value,
+		float max_value,
+		frequency_clock_t frequency,
+		bool send_same,
+		bool force_send_changed,
+		std::map<uint8_t, std::string> states,
+		bool writable,
+		SignalDecoder decoder,
+		SignalEncoder encoder,
+		bool received);
+
+	const can_message_definition_t& get_message() const;
+	const std::string& get_generic_name() const;
+	const std::string get_name() const;
+	const std::string& get_prefix() const;
+	uint8_t get_bit_position() const;
+	uint8_t get_bit_size() const;
+	float get_factor() const;
+	float get_offset() const;
+	float get_min_value() const;
+	float get_max_value() const;
+	frequency_clock_t& get_frequency();
+	bool get_send_same() const;
+	bool get_force_send_changed() const;
+	const std::map<uint8_t, std::string>& get_states() const;
+	const std::string get_states(uint8_t value);
+	size_t get_state_count() const;
+	bool get_writable() const;
+	SignalDecoder& get_decoder();
+	SignalEncoder& get_encoder();
+	bool get_received() const;
+	float get_last_value() const;
+
+	void set_prefix(std::string val);
+	void set_received(bool r);
+	void set_last_value(float val);
+};
\ No newline at end of file