tasklwIP - A Lightweight TCP/IP stack - Tasks: task #14807, tcp input/ip4 reasssembly: try to...

 
 

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task #14807: tcp input/ip4 reasssembly: try to not write to the rx pbuf

Submitted by:  Simon Goldschmidt <goldsimon>
Submitted on:  Wed 10 Jan 2018 02:25:20 PM UTC  
 
Category:  None Should Start On:  Wed 10 Jan 2018 12:00:00 AM UTC
Should be Finished on:  Wed 10 Jan 2018 12:00:00 AM UTC Priority:  3 - Low
Status:  None Privacy:  Public
Percent Complete:  0% Assigned to:  None
Open/Closed:  Open Planned Release:  None
Effort:  0.00

Sun 16 Feb 2020 07:45:09 PM UTC, comment #2: 

Added code to the windows port to test this: see PCAPIF_RX_READONLY and PCAPIF_RX_REF.

Simon Goldschmidt <goldsimon>
Project Administrator
Sun 16 Feb 2020 07:43:20 PM UTC, comment #1: 

Updated summary: IPv4 reassembly writes into the rx buffer, too.

Since supporting readonly RX is possibly slower and uses more memory, this should probably be an option...

Simon Goldschmidt <goldsimon>
Project Administrator
Wed 10 Jan 2018 02:25:20 PM UTC, original submission:  

tcp writes into rx pbufs (at least network byte order flips). Let's try to change this. I don't know if it works at all (regarding ooseq, especially) -> low prio

Simon Goldschmidt <goldsimon>
Project Administrator

 

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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2020-02-16 goldsimon Summarytcp input: try to not write to the rx pbuf => tcp input/ip4 reasssembly: try to not write to the rx pbuf

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