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fixes a problem with NFS over TCP reported by Jason Thorpe, fix from
klm@netbsd.org
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Fixed a sequence wraparound bug in the snd_recover variable discovered in
very large (multiple GByte) transfers (in loss free conditions, snd_recover
was not sufficiently tracking snd_una). Thanks to Mark Smith for finding
this.
Fixed a bug in tcp_newreno that was preventing retransmission of data due
to partial acks. (Discovered by Jayanth Vijayaraghavan)
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SA to be used, use this SA in ip_output if available. allow mobile road
warriors for bind SAs with wildcard dst and src addresses. check IPSEC
AUTH and ESP level when receiving packets, drop them if protection is
insufficient. add stats to show dropped packets because of insufficient
IPSEC protection. -- phew. this was all done in canada. dugsong and linh
provided the ride and company.
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just ignore the sack block + fix misleading comment. tomh@CS.Berkeley.EDU
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already been cleared of the acked data, though it was called before any
sbdrop() call and always called tcp_output() with 0 index in the send
socket buffer and thus causing data corruption. so do not set snd_una to
th_ack.
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integration
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by Hari Balakrishnan (hari@lcs.mit.edu), Tom Henderson (tomh@cs.berkeley.edu)
and Venkat Padmanabhan (padmanab@cs.berkeley.edu) as part of the
Daedalus research group at the University of California,
(http://daedalus.cs.berkeley.edu). [I was able to do this on time spent
at the Center for Information Technology Integration (citi.umich.edu)]
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- fix a 4.4bsd-lite2 bug, when tcp options are present the maximum segment
size is not updated correctly, so that fast recovery forces out a segment
which is split in two segments by tcp_output(), the fix is adpated from
FreeBSD, the effective mss is recorded after option negotiation in 3way
handshake.
[I was able to fix this on time spent at Center for Information Technology
Integration (citi.umich.edu)]
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LISTEN state with source address/port == destination address/port).
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option TCPCOOKIE
in the kernel config file. For very busy servers, consider raising
the TCK_NFRIENDS value (it's currenly set to 16).
Code originally from Matt Blaze and John Ioannidis.
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SOMAXCONN (kern.somaxconn), SOMINCONN (kern.sominconn), and TCPTV_KEEP_INIT
(net.inet.tcp.keepinittime). when this is not enough (ie. overfull), start
doing tail drop, but slightly prefer the same port.
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alpha :-)
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make netinet work on systems where pointers and longs are 64 bits
(like the alpha). Biggest problem: IP headers were overlayed with
structure which included pointers, and which therefore didn't overlay
properly on 64-bit machines. Solution: instead of threading pointers
through IP header overlays, add a "queue element" structure to do
the threading, and point it at the ip headers.
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