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16 Commits

Author SHA1 Message Date
David Greenman
2d8266af5c Two fixes from Rich Stevens: 
1) Set the persist timer to help time-out connections in the CLOSING state.
2) Honor the keep-alive timer in the CLOSING state.

   This fixes problems with connections getting "stuck" due to incompletion
of the final connection shutdown which can be a BIG problem on busy WWW
servers.
 1996-04-15 03:46:33 +00:00
Poul-Henning Kamp
34be9bf3ce Add a sysctl (net.inet.tcp.always_keepalive: 0) that when set will force 
keepalive on all tcp sessions.  Setsockopt(2) cannot override this setting.
Maybe another one is needed that just changes the default for SO_KEEPALIVE ?
Requested by: Joe Greco <jgreco@brasil.moneng.mei.com>
 1996-04-04 11:17:04 +00:00
David Greenman
2ee45d7d28 Move or add #include <queue.h> in preparation for upcoming struct socket 
changes.
 1996-03-11 15:13:58 +00:00
Andras Olah
74b48c1de1 Reverse the modification which caused the annoying m_copydata crash: set 
the TF_ACKNOW flag when the REXMT timer goes off to force a
retransmission.  In certain situations pulling snd_nxt back to snd_una
is not sufficient.
 1996-01-04 21:34:21 +00:00
Poul-Henning Kamp
0312fbe97d New style sysctl & staticize alot of stuff. 1995-11-14 20:34:56 +00:00
Poul-Henning Kamp
98163b98dc Start adding new style sysctl here too. 1995-11-09 20:23:09 +00:00
Andras Olah
356ad1b0cb Setting the TF_ACKNOW flag was redundant in the REXMT timeout because 
tcp_output() checks for the condition snd_nxt == snd_una.

Reviewed by:	davidg, wollman, olah
Suggested by:	Richard Stevens
 1995-11-03 22:19:50 +00:00
Garrett Wollman
e79adb8ed6 Finish 4.4-Lite-2 merge: randomize TCP initial sequence numbers 
to make ISS-guessing spoofing attacks harder.
 1995-10-03 16:54:17 +00:00
David Greenman
cc0964fb2b Add connection drop capability for persist timeouts. 
Reviewed by:	Andras Olah
Obtained from:	4.4BSD-lite2 via W. Richard Stevens
 1995-07-29 18:48:44 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
David Greenman
230620627b Fixed bug I introduced when changing PCB list to use 4.4BSD style queue 
macros. Basically, detect 'tp' going away differently.
 1995-04-12 06:49:56 +00:00
David Greenman
15bd2b4385 Implemented PCB hashing. Includes new functions in_pcbinshash, in_pcbrehash, 
and in_pcblookuphash.
 1995-04-09 01:29:31 +00:00
Garrett Wollman
41f82abe5a Transaction TCP support now standard. Hack away! 1995-02-16 00:55:44 +00:00
Garrett Wollman
a0292f2375 Merge Transaction TCP, courtesy of Andras Olah <olah@cs.utwente.nl> and 
Bob Braden <braden@isi.edu>.

NB: This has not had David's TCP ACK hack re-integrated.  It is not clear
what the correct solution to this problem is, if any.  If a better solution
doesn't pop up in response to this message, I'll put David's code back in
(or he's welcome to do so himself).
 1995-02-09 23:13:27 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
Rodney W. Grimes
df8bae1de4 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00