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Alibaba CDN TCP Option Address

The TOA(TCP Option Address) is a TCP option in TCP header which contains the source IP address. This kernel module is to obtain the IP address in TOA sent by Alibaba Cloud CDN servers. It only supports IPv4 yet.

Requirements

The kernel module only supports Linux v2.6.32-v3.10.0 yet, such as CentOS 6.5/7.2/7.7. To compile the kernel module, the environment requirements are as below:

• Kernel devel and related packages
• GCC compiler
• GNU make tool

Installation

1. Git clone or download the source package

2. Enter the src directory and compile the kernel module

   cd src
   make
   

3. Load the kernel module

   sudo insmod tcp_toa.ko
   

Uninstallation

sudo rmmod tcp_toa

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Changelog

Detailed changes for each release are documented in the release notes.

License

GPLv2

Copyright 2019-2020 Alibaba Group Holding Ltd.