from Rich Stevens, fix connection-reuse code to use send rather than
recv sequence for iss on new connection

changes to randomize iss (somewhat); use a random component in the increment.
Increase rate of periodic increment, but leave the per-connection increment
about the same. Small cleanup in code to han

changes to randomize iss (somewhat); use a random component in the increment.
Increase rate of periodic increment, but leave the per-connection increment
about the same. Small cleanup in code to handle bad (e.g. spoofed) SYN:
remove redundant code, add counter (perhaps should count only if SYN is set),
and simplify slightly for RST.

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back out revision 8.9 (re karels)

set TF_ACKNOW rather than TF_DELACK when TH_PUSH bit is set (from mycroft)

Fix two TCP bugs. The first is to recognize and
generate RST packets in response to packets that arrive on
a LISTEN socket that have the ACK bit set. The second fix
is to make sure that when we rec

Fix two TCP bugs. The first is to recognize and
generate RST packets in response to packets that arrive on
a LISTEN socket that have the ACK bit set. The second fix
is to make sure that when we receive a duplicate SYN/ACK
packet that we always generate an ACK. (The code that deals
with crossing SYNs broke this...)

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per Van via Sally Floyd, do not add the constant maxseg/8 to the
congestion window on each new ack in congestion avoidance (after
slow start) (from karels)

lint, multicast fix (from karels)

move tcppredack, tcppreddat, tcppcbcachemiss into the TCP stats structure
Rich Stevens asked, Mike Karels agreed.

use standard promotion rules

lint

The code in tcp_input() to disallow a socket from connecting to itself
is no longer needed as the problem with the SYN,ACK war has been fixed.

4.4BSD snapshot (revision 8.1); add 1993 to copyright

prototype everything

Mostly changes recommended by jch for variable subnets & multiple
IP addresses per physical interface. May require further work.

avoid connecting to ourselves (from torek approved by mike)

include TUBA support for now

per Tom Skibo, remove experimental SACK options code

latest from Tom Skibo, based on Dave Borman's comments.

(By Sklower) checkpoint the current state of Cherenson's work.

handle 2K mbufs gracefully: round user buffer spec up, not down.
allow more than 3 packets of window by default (3 is particularly
bad with current ack policy). (from van)

make kernel includes standard

fix bug that cherenson reported

check RTT lock, not MTU lock

finish checking van's changes: need to process/free options
even when prediction wins

new copyright notice