Network data forwarding method and system for linux equipment

Abstract

The invention discloses a Linux device network data forwarding method and system, and relates to the technical field of Linux network data forwarding. The steps of the method are: judging whether there is a hash entry corresponding to the received data packet in the hash linked list, if so, forwarding the received data packet; otherwise, the Linux device forms a hash entry according to the received data packet in the hash linked list ; The received data packet is processed by the CPU to form a sent data packet; if there is a hash table entry corresponding to the data packet information in the hash list, the header information of the sent data packet will be matched with the header of the data packet in the hash table entry The information is compared to obtain the difference header information, and after the difference header information is added to the hash table item, the sent data packet is forwarded through the standard network protocol stack of Linux. The invention can reduce the probability of data packet loss, shorten the forwarding time of the data packet and improve the forwarding efficiency of the data packet on the basis of not relying on the hardware network accelerator to forward the data packet.

Description

technical field [0001] The invention relates to the technical field of Linux network data forwarding, in particular to a method and system for forwarding network data of Linux devices. Background technique [0002] The Linux system is a multi-tasking, multi-threading and multi-CPU open source operating system. Since it came out in 1990, it has derived various versions and is widely used on various hardware devices (ie Linux devices), such as home gateways, Tablet PCs, mobile phones, and various servers, etc. [0003] Taking the home gateway as an example, the home gateway running Linux system, as a terminal product that can provide users with Internet access, video and voice services, is more and more widely used, and the needs of customers are becoming more and more abundant. Especially strong, the demand has risen from the previous few megabytes to the current tens of megabytes or even hundreds of megabytes. The first-generation home gateway adopts the data forwarding lo...

AI Technical Summary

Problems solved by technology

[0008] (1) The hardware network accelerator can only forward specific types of network data packets, and the hardware network accelerator needs to rely on specific CPU hardware; therefore, the packet types and usage requirements forwarded by the hardware network accelerator have certain restrictions, and the scope of application is relatively single. poor versatility

[0009] (2) The CPU cannot control the network data packets forwarded by the hardware network accelerator, and thus cannot know the information of the network data packets (such as the speed limit of the network data packets, the content limit of the webpage, etc.), and the security of the network data packets has certain limitations. Hidden danger

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