Doip通讯代码实现
时间: 2023-09-02 17:07:36 浏览: 67
以下是一个简单的基于TCP/IP协议的DoIP通讯示例,实现了连接请求和发送数据的功能,仅供参考:
客户端代码:
```python
import socket
# 定义DoIP连接请求消息
def build_connect_request():
data = bytearray()
data += b'\x00\x08' # payload_size
data += b'\x01' # protocol_version
data += b'\xFE' # inverse_version
data += b'\xCAFEBABE' # magic_number
data += b'\x8001' # message_type
data += b'\x0000' # reserved
data += b'\x0001' # source_address
data += b'\x0002' # target_address
data += b'\x0003' # tester_address
data += b'\x0004' # vehicle_address
data += b'\x00' * 8 # reserved
return data
# 定义DoIP发送数据消息
def build_send_data(data):
payload_size = len(data)
data = bytearray(data)
data = data[:1024]
data = data.ljust(1024, b'\x00')
result = bytearray()
result += payload_size.to_bytes(2, byteorder='big')
result += b'\x01' # protocol_version
result += b'\xFE' # inverse_version
result += b'\xCAFEBABE' # magic_number
result += b'\x8003' # message_type
result += b'\x0000' # reserved
result += data
return result
# 建立TCP连接并发送DoIP连接请求消息
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect(('localhost', 1234))
sock.sendall(build_connect_request())
# 接收DoIP连接响应消息并进行处理
response = sock.recv(1024)
# TODO: 处理连接响应消息
# 发送DoIP发送数据消息
data = b'\x01\x02\x03\x04'
sock.sendall(build_send_data(data))
# 接收DoIP发送数据响应消息并进行处理
response = sock.recv(1024)
# TODO: 处理发送数据响应消息
# 关闭TCP连接
sock.close()
```
服务端代码:
```python
import socket
# 定义DoIP连接响应消息
def build_connect_response():
data = bytearray()
data += b'\x00\x0C' # payload_size
data += b'\x01' # protocol_version
data += b'\xFE' # inverse_version
data += b'\xCAFEBABE' # magic_number
data += b'\x8002' # message_type
data += b'\x0000' # reserved
data += b'\x0001' # source_address
data += b'\x0002' # target_address
data += b'\x0003' # tester_address
data += b'\x0004' # vehicle_address
data += b'\x00' # protocol_version
data += b'\x00' # inverse_version
data += b'\x00' # result_code
data += b'\x00' * 3 # reserved
return data
# 建立TCP监听并等待客户端连接
server_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_sock.bind(('localhost', 1234))
server_sock.listen(1)
sock, addr = server_sock.accept()
# 接收DoIP连接请求消息并进行处理
request = sock.recv(1024)
# TODO: 处理连接请求消息
# 发送DoIP连接响应消息
sock.sendall(build_connect_response())
# 接收DoIP发送数据消息并进行处理
request = sock.recv(1024)
data_size = int.from_bytes(request[:2], byteorder='big')
data = request[8:8+data_size]
# TODO: 处理发送数据消息并返回响应
# 发送DoIP发送数据响应消息
response = bytearray()
response += b'\x00\x08' # payload_size
response += b'\x01' # protocol_version
response += b'\xFE' # inverse_version
response += b'\xCAFEBABE' # magic_number
response += b'\x8004' # message_type
response += b'\x0000' # reserved
sock.sendall(response)
# 关闭TCP连接
sock.close()
```
需要注意的是,这只是一个简单的示例,实际的DoIP通讯中可能涉及到更多的消息类型和字段。在实际的项目中,需要根据具体的需求和规范进行开发和实现。