patchlwIP - A Lightweight TCP/IP stack - Patches: patch #10429, ip4: don't zero checksum on...

 
 

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patch #10429: ip4: don't zero checksum on forwarding

Submitter:  Andrew Tridgell <tridge>
Submitted:  Wed 10 Jan 2024 04:50:41 AM UTC
   
 
Category:  None Priority:  5 - Normal
Status:  None Privacy:  Public
Assigned to:  None Open/Closed:  Open
Planned Release:  None

Wed 10 Jan 2024 04:50:41 AM UTC, original submission:  

this fixes IP forwarding for systems that don't have hardware checksumming on the output interface. The CHECKSUM_GEN_xxx checks meant that lwip was unconditionally zeroing the checksums when forwarding was enabled, the the checksums were not being re-calculated before sending, resulting in zero checksum on the forwarded output packets

Andrew Tridgell <tridge>

 

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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2024-01-10 tridge Attached File- Added 0002-ip4-don-t-zero-checksum-on-forwarding.patch, #55548

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