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Differential D26008

Improve ECN negotiation when using the TCP SYN-cache
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Authored by tuexen on Aug 8 2020, 12:10 PM.
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rrs
rscheff
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transport
Commits
rS364054: Improve the ECN negotiation when the TCP SYN-cache is used by making
Summary

This patch ensures that

  • ECN is disabled if the client sends an non-ECN-setup SYN segment.
  • ECN is disabled is the ECN-setup SYN-ACK segment is retransmitted more than net.inet.tcp.ecn.maxretries times.

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Repository
rS FreeBSD src repository - subversion
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Buildable 32873

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sys/
netinet/
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Diff 75606

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sys/netinet/tcp_syncache.c

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