Software Development And Implementation Of The Upper Part Of The WIFI Packet Testing System

With the rapid development of wireless technology and the continuous improvement of hardware manufacturing level,,wireless terminal devices have more and more functions and the WIFI protocol process has become more complicated in order to meet people's needs.Therefore a complete protocol test system is required in the manufacturing process in order to test various WIFI protocol processes on the terminal equipment for verifying the completeness of its functions.In the context of the research and design of the WIFI protocol test system in the laboratory project,this paper focuses on the design and implementation of the upper part of the WIFI test system based on the research of the current WIFI protocol in the laboratory,including the design of the entire framework and the design of the implementation of each functional module,and the testing of each functional module verify the correctness of the functional module.The upper part of the WIFI protocol testing system in this project is mainly divided into three modules,namely,the AP message receiving and sorting module,the message editing module and the customization and sending module of the universal testing template.the AP message receiving and sorting module completes the work of the classification,parsing of the message and corresponding process.The packet-editing module completes the work of the editing of the wireless test packets and customization of specific protocol fields of the packets.The customization and sending module of the universal testing template completes the work of the configuration of the AP in the user interface and the state description of the general state machine to obtain a single test case.This paper first introduces the overall design of the WIFI protocol test system in order to come up with the key modules of the upper part of the system,and introduces related key technologies about those modules,including WIFI protocol procedure and key frame format,message parsing platform Wireshark and software library for Interface development Qt.Then according to the requirements of the upper part of the system,the architecture of each functional module the specific implementation process is given,including the message receiving module,the message editing module and testing template module.Finally,each function module is tested.The design and implementation of the upperpart of the test system in this paper provides technical support for the first phase of the project "Design and Development of WIFI Protocol Test System".