buglwIP - A Lightweight TCP/IP stack - Bugs: bug #50912, RST dropped if recvmbox is full

 
 

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bug #50912: RST dropped if recvmbox is full

Submitter:  Simon Goldschmidt <goldsimon>
Submitted:  Tue 02 May 2017 10:27:22 AM UTC
   
 
Category:  TCP Severity:  3 - Normal
Item Group:  Faulty Behaviour Status:  Fixed
Privacy:  Public Assigned to:  goldsimon
Open/Closed:  Closed Planned Release:  2.1.0
lwIP version:  git head

Tue 08 Aug 2017 09:17:33 PM UTC, comment #1: 

Should work now.

Simon Goldschmidt <goldsimon>
Group administrator
Tue 02 May 2017 10:27:22 AM UTC, original submission:  

Since ensuring that data before RST can be received (bug #50088, see commit e0a2472706ee7af99cd00d35bc7e5829aea5caea), the RST can be lost if the recvmbox is full.
Same thing for listening pcbs and acceptmbox, but 'err_tcp' is only triggered internally by the stack.

There should be a fallback mechanism to ensure RST is received when sys_mbox_trypost() fails.

Simon Goldschmidt <goldsimon>
Group administrator

 

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2017-08-08 goldsimon StatusNone Fixed
        Open/ClosedOpen Closed
    2017-07-26 goldsimon Planned ReleaseNone 2.1.0

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