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opnsense-src/sys/netinet/cc
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Richard Scheffenegger 14558b9953 Introduce a lower bound of 2 MSS to TCP Cubic. 
Running TCP Cubic together with ECN could end up reducing cwnd down to 1 byte, if the
receiver continously sets the ECE flag, resulting in very poor transmission speeds.

In line with RFC6582 App. B, a lower bound of 2 MSS is introduced, as well as a typecast
to prevent any potential integer overflows during intermediate calculation steps of the
adjusted cwnd.

Reported by:	Cheng Cui
Reviewed by:	tuexen (mentor)
Approved by:	tuexen (mentor)
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D23353
2020-04-30 11:11:28 +00:00
..
cc.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
cc.h Make use of the stats(3) framework in the TCP stack. 2019-12-02 20:58:04 +00:00
cc_cdg.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
cc_chd.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
cc_cubic.c Introduce a lower bound of 2 MSS to TCP Cubic. 2020-04-30 11:11:28 +00:00
cc_cubic.h Add boundary and overflow checks to the formulas used in the TCP CUBIC 2019-11-16 12:00:22 +00:00
cc_dctcp.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
cc_hd.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
cc_htcp.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
cc_module.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
cc_newreno.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
cc_newreno.h Add support for the experimental Internet-Draft "TCP Alternative Backoff with 2018-03-19 16:37:47 +00:00
cc_vegas.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00