Commit Graph

27 Commits

Author SHA1 Message Date
mycroft 315bb1ab50 Fix RTT scaling problems introduced with Brakmo and Peterson changes. 1996-12-10 18:20:19 +00:00
mycroft 9bfa240a98 Hash unconnected PCBs. 1996-09-15 18:11:06 +00:00
mycroft da2cd7eb82 If we're in SYN-SENT or SYN-RECEIVED state, don't reset the keepalive
timer until we transition to ESTABLISHED state.  Suggested by TCP/IP
vol 3.
1996-09-10 23:26:05 +00:00
mycroft 62a6cce9ca Add in_nullhost() and in_hosteq() macros, to hide some protocol
details.  Also, fix a bug in TCP wrt SYN+URG packets.
1996-09-09 14:51:07 +00:00
christos 14d9cd33af netinet prototypes 1996-02-13 23:40:59 +00:00
mycroft 0a47ede0fe Ignore FIN if not yet connected. 1996-01-31 05:56:56 +00:00
mycroft 67e78477db Build a hash table of PCBs. Hash function needs tweaking. 1996-01-31 03:49:23 +00:00
cgd dfad729a16 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.
1995-11-21 01:07:34 +00:00
mycroft 68735fd022 Encapsulate the test for sending a notification in a macro, sb_notify(). 1995-08-04 01:09:57 +00:00
mycroft 6897f39ae9 Various cleanup, including:
* Convert several data structures to use queue.h.
* Split in_pcbnotify() into two parts; one for notifying a specific PCB, and
one for notifying all PCBs for a particular foreign address.
1995-06-12 00:46:47 +00:00
mycroft f9337c3f1e Oops. Decrement rtt earlier. 1995-06-11 21:36:04 +00:00
mycroft 2be9b519ac As suggested by Brakmo and Peterson:
* Don't add the extra 1/8 of the mss when ramping up the congestion window.
* Scale the RTT values slightly to adjust for rounding errors.
* Set the lower bound of the RTO to RTT+2.
1995-06-11 20:39:22 +00:00
mycroft 4ce5bb3dd4 Check for inflated congestion window during header prediction, per Bramko and
Peterson.
1995-06-11 09:36:28 +00:00
mycroft 0a99592372 Clean up many more casts. 1995-06-04 05:06:49 +00:00
mycroft eb216fd6c2 Avoid byte-swapping IP addresses at run time. 1995-06-01 21:35:34 +00:00
cgd 80929f8527 be a bit more careful and explicit with types. (basically a large no-op.) 1995-04-13 06:35:38 +00:00
mycroft 63bb09e6da Don't return received data to the user until the initial handshake is complete.
Also use TCPS_HAVEESTABLISHED() in a few other places.
1994-10-14 16:01:48 +00:00
cgd cf92afd66e New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD' 1994-06-29 06:29:24 +00:00
mycroft 07b4f2ab54 Update to 4.4-Lite networking code, with a few local changes. 1994-05-13 06:02:48 +00:00
mycroft 87b39add50 As I described this on comp.protocols.tcp-ip:
I've found a problem with the TCP delayed ack algorithm.  If the writer's
buffer becomes full before sending an entire window, the writer will stop
and the ack will be delayed and the transmission will be stalled pending
a timeout on (and transmission of) the delayed ack.

As an experiment, I've applied the following patch to my (NetBSD) kernel,
and it alleviates the problem.

The worst case for this change is that the writer sets the PSH bit on
every outgoing packet, in which case delayed ack is effectively disabled.
This is not an issue of correctness, however, and since most vendors use
the PSH bit a bit more intelligently, it doesn't seem like a serious
problem.
1994-04-25 19:16:53 +00:00
mycroft 08230400b7 Patch from James Carlson to fix TCP stalls. 1994-04-12 18:07:46 +00:00
mycroft 12c88c1841 Remove some extra prototypes. 1994-01-08 23:26:40 +00:00
mycroft e43117185e Prototypes. 1994-01-08 23:07:16 +00:00
mycroft 4fe12e6e88 Fix some inconsistent spacing; spaces at the end of lines, etc. 1994-01-08 21:21:28 +00:00
mycroft 95b048b53a Canonicalize all #includes. 1993-12-18 00:40:47 +00:00
cgd 8d6c77881c make kernel select interface be one-stop shopping & clean it all up. 1993-05-18 18:18:40 +00:00
cgd 61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00