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TCP/IP stack data structure in the Linux kernel space

Guest ha-as

By Guest ha-as
in Microsoft Support & Discussions

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Guest ha-as

Guest ha-as

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I am trying to understand the implementation of TCP/IP stack in the linux kernel space. And I came across multiple-thing which I am not sure about.

 

1. What is meaning of non-linear sk_buff, and how does it differ from linear sk_buff?

 

2. If I want to get the timestamp option in the TCP header to obtain Timestamp value and timestamp reply, how can I extract it from sk_buff using tcphdr structure?

 

3. Changing the value of the timestamp requires, recalculating the TCP checksum ,right? So how can I do that in terms of functions required in the coding?

 

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