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[lwip-devel] [patch #9610] tcp_out: Fix updating remainder_flags in tcp_
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From: |
Joel Cunningham |
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Subject: |
[lwip-devel] [patch #9610] tcp_out: Fix updating remainder_flags in tcp_split_unsent_seg |
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Date: |
Fri, 30 Mar 2018 13:23:28 -0400 (EDT) |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/604.5.6 (KHTML, like Gecko) Version/11.0.3 Safari/604.5.6 |
Follow-up Comment #1, patch #9610 (project lwip):
Axel,
Great find, your patch is correct.
Using remainder is in fact a typo and remainder_flags was intended.
'remainder' is the size of unsent segment that is being split off into a new
pbuf after unsent head is trimmed.
We have a unit test for the unsent segment splitting (see
test_tcp_persist_split), but it currently doesn't test on FIN data packets
(which is the only case this bug would present itself).
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