Data packet recombination method and apparatus, computer device and readable medium

A data packet and purpose technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of single data, rigid HTTP stream recombination technology, inability to process data packets, etc.

Active Publication Date: 2018-05-08
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the data processed by the above-mentioned existing network data packet restoration method is single, and can only analyze and reorganize POST data, and cannot handle request methods such as GET / HEAD, and cannot process data packets without content-length fields such as transfer-encoding
Therefore, the existing HTTP stream reassembly technology is very rigid, can only handle relatively single data, and has poor practicability

Method used

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  • Data packet recombination method and apparatus, computer device and readable medium
  • Data packet recombination method and apparatus, computer device and readable medium
  • Data packet recombination method and apparatus, computer device and readable medium

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Embodiment Construction

[0074] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0075] figure 1 It is a flow chart of Embodiment 1 of the data packet reassembly method of the present invention. Such as figure 1 As shown, the reassembly method of the data packet in this embodiment may specifically include the following steps:

[0076] 100. Obtain all TCP data packets within a preset time period from the routing nodes of the network;

[0077] The execution subject of the recombination method of the data packet in this embodiment is the recombination device of the data packet, and the recombination device of the data packet can recombine all TCP data packets in the network according to the TCP flow, and recombine according to the HTTP flow in each TCP flow . In practical applications, one TCP stream may include multiple HTTP...

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PUM

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Abstract

The invention provides a data packet recombination method and apparatus, a computer device and a readable medium. The method comprises the following steps: obtaining all TCP data packets in a preset time period from a routing node of the network; and obtaining multiple TCP data packets in TCP streams according to quadruple information of the TCP data packets, wherein the quadruple information comprises a source port identifier, a destination port identifier, a source IP address and a destination IP address; recombining the multiple TCP data packets in the TCP streams according to the quadrupleinformation of the TCP data packets in the TCP streams and the attribute information of the TCP data packets; and recombining the multiple recombined TCP data packets in the TCP streams according toHTTP streams. The technical scheme of the invention can recombine the data packets in the TCP streams in any forms, so that the use mode is very flexible, and the scheme can be applied to a very largenumber of scenes, so that the practicality is very high.

Description

【Technical field】 [0001] The invention relates to the field of computer application technology, in particular to a method and device for recombining data packets, computer equipment and readable media. 【Background technique】 [0002] HyperText Transfer Protocol (HTTP) is an application layer protocol based on Transmission Control Protocol (Transmission Control Protocol; TCP) TCP / Internet Protocol (Internet protocol; IP), and has been widely used in the Internet field. [0003] In the era of widespread Internet and information explosion, information security has become an important issue. By analyzing the data flow, reorganizing the HTTP protocol data packets, and restoring the data packets transmitted in the network into complete application layer data, it can help people realize security behavior analysis. For example, the existing HTTP stream reassembly technology is mainly used in the field of security audits, including mining malicious and illegal user behaviors (pornog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/951H04L12/953H04L29/06H04L29/08H04L47/43
CPCH04L49/9057H04L67/02H04L69/163
Inventor 蓝秉宸王少岩
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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