Automatic TCP/UDP (Transmission Control Protocol/User Datagram Protocol) data packing and unpacking method based on PYTHON language

Abstract

The invention relates to a TCP / UDP communication data packet packing and unpacking method based on a PYTHON language. A communication data structure is defined by an XML file form to form a transformational relation mapping table that data packets and configuration structures establish one-to-one correspondence, and the transformational relation mapping table is resident in an internal storage, and packing and unpacking are completed through the transformational relation mapping table. In the packing process, the data of each field of a protocol is generated according to the transformational relation mapping table, and then the data is combined to form a complete data message. In the unpacking process, the complete data message is split into a plurality of fields according to the transformational relation mapping table. The invent greatly increases the developed and test speed of a TCP / UDP data communication program to make a programmer more concentrate on the development of the business logic of the program, whereas a tester does not need to check the communication data byte by byte, and thereby, the accuracy and the efficiency of a test can be improved.

Description

【Technical field】 [0001] The invention belongs to the field of computer software communication, and specifically refers to a method for automatically grouping and unpacking TCP / UDP data based on PYTHON language. 【Background technique】 [0002] In the field of computer software communication, TCP is a connection-oriented protocol that ensures reliable transmission. Through TCP protocol transmission, what is obtained is a sequential error-free data stream. UDP is a protocol corresponding to TCP. It is a connectionless protocol, and each datagram is an independent message. TCP / UDP are applied to different fields respectively, such as TCP applied in remote connection (Telnet), hypertext transfer (HTTP) and file transfer (FTP); UDP applied in video conferencing system, etc. [0003] At present, most of the grouping and unpacking of TCP / UDP-based communication protocols are directly processed in the program code. When the data is received, it is transferred to the corresponding ...

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Problems solved by technology

[0003] At present, most of the grouping and unpacking of TCP / UDP-based communication protocols are directly processed in the program code. When the data is received, it is transferred to the corresponding protocol processor for processing. It is necessary to write the code of each protocol, and the protocol structure has It is very inflexible and not easy to expand the system when it is changed. It is very inflexible and not easy to expand the system; for the program in the debugging and testing stage, it is more necessary to construct and analyze the protocol field by field. This process is very It is cumbersome and complicated, and it is easy to make mistakes in construction and analysis due to the complexity of the protocol

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