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[lwip-devel] [bug #50837] TCP: zero window probe doesn't timeout
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From: |
Joel Cunningham |
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Subject: |
[lwip-devel] [bug #50837] TCP: zero window probe doesn't timeout |
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Date: |
Wed, 26 Jul 2017 17:46:54 -0400 (EDT) |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.1.2 Safari/603.3.8 |
Follow-up Comment #40, bug #50837 (project lwip):
Anymore thoughts on how to move forward?
Follow up to the NetBSD behavior, another interesting thing about their stack
is that when receiving a window update, it doesn't cancel the persist timer,
but simply calls tcp_output() which then performs maintenance on the timer
Maybe we could adopt similar changes in our implementation that only stops the
persist timer when we successfully send again. This would be an alternate fix
to what was described in comment #34 and would have the benefit of not
introducing more checks for our "early" closed window
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