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56 Commits

Author SHA1 Message Date
markus
8892ccdfd5 support for RFC3390 (Increasing TCP's Initial Window); ok deraadt, itojun 2004-01-29 11:55:28 +00:00
markus
b09675a7ec syncache+ipv6 support for TCP_SIGNATURE; with itojun; ok deraadt 2004-01-14 13:38:21 +00:00
markus
5e7a448467 bring back the old TCP_SIGNATURE code from tcp_input.c rev 1.45 
and make it compile (does not work yet); ok deraadt@
 2004-01-13 13:26:14 +00:00
markus
90de8ec1b0 syn_XXX_limit -> synXXXlimit for consistency; ok deraadt 2004-01-07 19:20:14 +00:00
markus
2fc467f7c8 import netbsd's version of David Borman's syncache code 
http://www.kohala.com/start/borman.97jun06.txt; ok deraadt@, henning@
 2004-01-06 17:38:12 +00:00
itojun
81ed8a755e backout following: 
>use m_pulldown not m_pullup2.  fix some bugs in IPv6 tcp_trace().

PR 3283 fixed (confirmed)
 2003-06-09 07:40:25 +00:00
millert
29295d1c5c Remove the advertising clause in the UCB license which Berkeley 
rescinded 22 July 1999.  Proofed by myself and Theo.
 2003-06-02 23:27:43 +00:00
itojun
24773939e6 use m_pulldown not m_pullup2. fix some bugs in IPv6 tcp_trace(). 2003-05-29 00:35:18 +00:00
itojun
90f67e58d6 fix tcpcb size to make trpt happy 2003-05-26 05:01:55 +00:00
itojun
0dcbee3df6 don't #ifdef within struct tcpcb definition, as it is used in userland too. 
dhartmei ok
 2003-05-23 03:29:00 +00:00
jason
a57e2087f9 Nuke a whole bunch of commons; ok tedu (still more to come *sigh*) 2003-05-12 00:48:52 +00:00
jason
0c4981b035 Remove commons; inspired by netbsd. 2003-02-12 14:41:07 +00:00
itojun
3e3142117c whitespace 2002-06-09 16:26:10 +00:00
kjc
74e8fb406b bring in ECN support from KAME. 
it consists of
 - ECN support in TCP
 - tunnel-egress and fragment reassembly rules in layer-3 not to lose
   congestion info at tunnel-egress and fragment reassembly

to enable ECN in TCP, build a kernel with TCP_ECN, and then,
turn it on by "sysctl -w net.inet.tcp.ecn=1".

ok deraadt@
 2002-05-16 14:10:51 +00:00
millert
c4071fd138 First round of __P removal in sys 2002-03-14 01:26:25 +00:00
provos
759b0e566c use timeout(9) to schedule TCP timers. this avoid traversing all 
tcp connections during tcp_slowtimo.  apdapted from thorpej@netbsd.org
 2002-03-08 03:49:58 +00:00
provos
9126175ae5 disable immediate ack on TH_PUSH. make behaviour sysctl tuneable. 
from netbsd; also fix a bug where setting TF_ACKNOW didn't actually
result in an ack.
 2002-03-02 00:44:52 +00:00
provos
99abd33ffd remove tcp_fasttimo and convert delayed acks to the timeout(9) API instead. 
adapated from netbsd.  okay angelos@
 2002-03-01 22:29:29 +00:00
provos
14333d66f4 allocate sackholes with pool 2002-01-15 19:18:01 +00:00
angelos
67475e5f67 Keep stats on TCP/UDP hardware checksumming. 2001-06-23 06:03:11 +00:00
angelos
d1eb37fff9 Inclusion protection. 2001-06-09 07:03:39 +00:00
provos
be03ea1b21 more random tcp sequence numbers. okay deraadt@, angelos@ 2000-12-13 09:47:08 +00:00
itojun
4d113176fe nuke #ifdef TCP6 (no longer supported). 
validate ICMPv6 too big messages (pmtud) based on pcb.  we accept
certain amount of non-validated ones, as IPv6 mandates ICMPv6 (so even for
traffic from unconnected pcb, we need pmtud).
sync with kame
 2000-12-11 08:04:55 +00:00
itojun
e030686130 implement net.inet.tcp.rstppslimit. rate-limits outbound TCP RST traffic 
to less than N per 1 second.
 2000-10-14 01:04:10 +00:00
provos
48f4b3145f on expiry of pmtu route, retry higher mtu. okay angelos@ 2000-09-25 09:41:02 +00:00
provos
39b94094a2 correctly calculate mss 2000-09-20 17:00:22 +00:00
provos
62c4355e0f Path MTU discovery based on NetBSD but with the decision to use the DF 
flag delayed to ip_output().  That halves the code and reduces most of
the route lookups. okay deraadt@
 2000-09-18 22:06:36 +00:00
provos
7b1010162a compute correct window scale when recvpipe option is set in route; based 
on diff from "Pete Kazmier" <pete@kazmier.com>
 2000-07-11 16:53:22 +00:00
art
3a11fd2794 Make the definition of tcpstat in tcp_var.h extern. 2000-06-26 22:45:09 +00:00
beck
e14da992b2 support ipv6 for tcp_ident 2000-06-18 04:42:43 +00:00
provos
e2dc046ce7 option TCP_NEWRENO goes away, its the default case for TCP_SACK if 
SACK is disabled for the connection or via sysctl
 1999-12-21 17:49:28 +00:00
itojun
287546ea80 bring in KAME IPv6 code, dated 19991208. 
replaces NRL IPv6 layer.  reuses NRL pcb layer.  no IPsec-on-v6 support.
see sys/netinet6/{TODO,IMPLEMENTATION} for more details.

GENERIC configuration should work fine as before.  GENERIC.v6 works fine
as well, but you'll need KAME userland tools to play with IPv6 (will be
bringed into soon).
 1999-12-08 06:50:14 +00:00
deraadt
fd7cc30d93 back out all recent changes, which continue to be a source for nasty bugs 1999-08-06 18:17:37 +00:00
niklas
b0737b3837 Revert to 1.21 1999-07-22 17:51:30 +00:00
provos
b0842ceafb revert tcp_input.c to before 07/01/1999 - this seems to solve the mysterious 
data corruptions and panics that people have experienced.  by reverting
we loose tcp signatures and ipv6 cleanups, the code looked correct to me.
 1999-07-17 23:41:46 +00:00
cmetz
b9de2beaa8 Added support for TCP MD5 option (RFC 2385). 1999-07-06 20:17:52 +00:00
cmetz
610219bced Fixed a #ifdef defined()... typo that turned into a compilation failure. 1999-07-02 21:22:13 +00:00
provos
fd8f581361 add SADB_X_BINDSA to pfkey allowing incoming SAs to refer to an outgoing 
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.
 1999-03-27 21:04:18 +00:00
deraadt
770febe7b1 indent 1999-02-04 16:12:13 +00:00
deraadt
17dc401aa8 use u_int32_t and u_int64_t for stats variables, instead of quad/long 1999-02-04 00:04:59 +00:00
niklas
063b6f8156 Make TCP_SACK compile with new netinet 1999-01-11 15:05:32 +00:00
deraadt
8c2ac9d753 netinet merge of NRL stuff. some indent and shrinkage needed; NRL/cmetz 1999-01-11 02:01:34 +00:00
deraadt
6a764e7f32 indent right 1998-11-18 17:42:22 +00:00
provos
201dac0fe3 NewReno, SACK and FACK support for TCP, adapted from code for BSDI 
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)]
 1998-11-17 19:23:00 +00:00
provos
5f0eddb4ad - fix three bugs pointed out in Stevens, i.a. updating timestamps correctly 
- 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)]
 1998-10-28 21:34:32 +00:00
beck
942f35d530 New TCPCTL_IDENT sysctl for identd without kmem insanity. 1998-06-10 03:40:05 +00:00
angelos
e96da05183 Add FreeBSD patch (check for SYN packets arriving at a socket in 
LISTEN state with source address/port == destination address/port).
 1998-03-18 02:37:47 +00:00
mickey
30b11cdc26 sysctl for def sizes for tcp/udp send/recv queues 1998-01-24 18:21:39 +00:00
millert
4a304dbaae The list of tcp/udp ports not to allocate dynamically is now 
a bitmask configurable via sysctl([38]).  The default values
have not changed.  If one wants to change the list it should
be done early on in /etc/rc.
 1997-08-09 23:36:25 +00:00
deraadt
6b194240b2 change byte counters to u_quad_t 1997-06-15 13:47:27 +00:00