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tcp: add sysctl to tolerate TCP segments missing timestamps
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Authored by tuexen on Jan 13 2021, 10:19 PM.

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Summary

When timestamp support has been negotiated, TCP segements received without a timestamp should be discarded. However, there are broken TCP implementations (for example, stacks used by Omniswitch 63xx and 64xx models), which send TCP segments without timestamps although
they negotiated timestamp support.
This patch adds a sysctl variable which tolerates such TCP segments and allows to interoperate with broken stacks.

The issue was reported in PR 252449

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Repository
R10 FreeBSD src repository
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Event Timeline

This revision is now accepted and ready to land.Jan 14 2021, 8:24 AM
This revision now requires review to proceed.Jan 14 2021, 7:36 PM
This revision is now accepted and ready to land.Jan 14 2021, 8:53 PM