Implement a new socket type CAN for j1939 protocol

This commit implements a new socket class for the j1939 protocol and
prepares the bases classes by modifying the write and read methods.

Bug-AGL: SPEC-2386

Change-Id: I16ba493418a4bb37a0262b61a2a2629be6ab5051
Signed-off-by: Arthur Guyader <arthur.guyader@iot.bzh>
Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh>
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 43 insertions, 0 deletions

diff --git a/low-can-binding/utils/socketcan-j1939.hpp b/low-can-binding/utils/socketcan-j1939.hpp
new file mode 100644
index 00000000..d3b01fc4
--- /dev/null
+++ b/low-can-binding/utils/socketcan-j1939.hpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2018, 2019 "IoT.bzh"
+ * Author "Arthur Guyader" <arthur.guyader@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 <linux/can/j1939.h>
+
+#include "./socketcan.hpp"
+#include "../can/message/j1939-message.hpp"
+
+namespace utils
+{
+
+	class socketcan_j1939_t : public socketcan_t
+	{
+	public:
+		using socketcan_t::socketcan_t;
+		virtual int open(std::string device_name);
+		int open(std::string device_name,  name_t name, pgn_t pgn, uint8_t addr);
+		virtual std::shared_ptr<message_t> read_message();
+		virtual void write_message(std::shared_ptr<message_t> obj);
+		virtual void write_message(std::vector<std::shared_ptr<message_t>>& vobj);
+
+	private:
+		int connect(const struct sockaddr* addr, socklen_t len);
+		int bind(const struct sockaddr* addr, socklen_t len);
+		void filter(name_t name, pgn_t pgn, uint8_t addr, uint64_t name_mask=0, uint32_t pgn_mask=0, uint8_t addr_mask=0);
+	};
+}