[lwip-devel] [bug #11400] ARP multi-packet-queue modifies TCP unsent/unacked segment packet pbuf chain into packet queue

[Simon Goldschmidt]

Follow-up Comment #11, bug #11400 (project lwip):

I think the current state is still not free from modifying a present queue of
pbufs.

To solve this, I changed the function pbuf_take() (only used by ARP) into
pbuf_copy() which copies a chained pbuf into one big PBUF_RAM. This way, we
don't change the original pbufs in any way. It may be slower, but it's only
used at connection start.

Please see attached file.

(file #12228)
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Additional Item Attachment:

File name: lwip_pbuf_copy.patch           Size:7 KB


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