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Commit Graph

209 Commits

Author SHA1 Message Date
Garrett Wollman
b97d15cbb7 Demolish DIRECTED_BROADCAST. It was always a bad idea, and nobody uses it. 1995-12-20 18:04:19 +00:00
Garrett Wollman
bda4c85ae6 Fix a nagging divide-by-zero error resulting from the MTU discovery code
getting triggered at a bad time.
1995-12-20 17:42:28 +00:00
Garrett Wollman
994fdef98a Added a comment about why trying to make a one-behind cache for
the route in ip_output() is a bad idea.
1995-12-19 21:24:19 +00:00
Garrett Wollman
ce29ab3ac6 Actually call in_rtqdrain()as was originally intended. 1995-12-19 20:46:15 +00:00
Bruce Evans
b62d102cbb Uniformized pr_ctlinput protosw functions. The third arg is now `void
*' instead of caddr_t and it isn't optional (it never was).  Most of the
netipx (and netns) pr_ctlinput functions abuse the second arg instead of
using the third arg but fixing this is beyond the scope of this round
of changes.
1995-12-16 02:14:44 +00:00
Bruce Evans
081d3b932c Added a prototype. 1995-12-16 00:05:40 +00:00
Poul-Henning Kamp
f708ef1b9e Another mega commit to staticize things. 1995-12-14 09:55:16 +00:00
Poul-Henning Kamp
f6d24a780b Staticize. 1995-12-09 20:43:53 +00:00
Poul-Henning Kamp
885f1aa42b Remove old ballast, clean up a little bit, staticize.
Add five sysctl variables that you should probably never tweak.
	net.arp.t_prune: 300
	net.arp.t_keep: 1200
	net.arp.t_down: 20
	net.arp.maxtries: 5
	net.arp.useloopback: 1
	net.arp.proxyall: 0

(It's net.arp because arp isn't limited to inet, though our present
implementation surely is).
1995-12-09 16:06:54 +00:00
Garrett Wollman
be070f4335 Added a conditionalized printf for debugging MTU discovery. 1995-12-08 16:46:06 +00:00
Bruce Evans
2baeef32b6 Removed unnecessary #includes of vm stuff. Most of them were once
prerequisites for <sys/sysctl.h>.

subr_prof.c:
Also replaced #include of <sys/user.h> by #include of <sys/resourcevar.h>.
1995-12-06 23:37:44 +00:00
Bruce Evans
f1844d4cdf Added explicit include of <sys/queue.h>. Currently, some things only
compile because <vm/vm.h> happens to be gratuitously included before
<netinet/in_pcb.h> and <vm/vm.h> happens to include <sys/queue.h>.
1995-12-05 21:26:34 +00:00
Garrett Wollman
b7a44e3486 Path MTU Discovery is now standard. 1995-12-05 17:46:50 +00:00
David Greenman
4a5f1499b0 all:
Removed ifnet.if_init and ifnet.if_reset as they are generally unused.
Change the parameter passed to if_watchdog to be a ifnet * rather than
a unit number. All of this is an attempt to move toward not needing an
array of softc pointers (which is usually static in size) to point to
the driver softc.

if_ed.c:
Changed some of the argument passing to some functions to make a little
more sense.

if_ep.c, if_vx.c:
Killed completely bogus use of if_timer. It was being set in such a way
that the interface was being reset once per second (blech!).
1995-12-05 02:01:59 +00:00
Bruce Evans
ce7609a49c Completed function declarations and/or added prototypes. 1995-12-02 19:38:06 +00:00
Poul-Henning Kamp
dcc3cb753b fix #includes & warnings. 1995-11-20 12:28:21 +00:00
Bruce Evans
1031ab97d2 Fixed the type of a function pointer. 1995-11-18 13:25:41 +00:00
Bruce Evans
ff98689d2d Fixed recent staticizations. Some protypes for static functions were
left in headers and not staticized.
1995-11-16 09:51:22 +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
845799c166 Cosmetic changes to processing of segments in the SYN_SENT state:
- remove a redundant condition;
- complete all validity checks on segment before calling
  soisconnected(so).

Reviewed by:	Richard Stevens, davidg, wollman
1995-11-03 22:31:54 +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
Andras Olah
a45d27261d Fix a logical error in T/TCP: when we actively open a connection, we
have to decide whether to send a CC or CCnew option in our SYN segment
depending on the contents of our TAO cache.  This decision has to be
made once when the connection starts.  The earlier code delayed this
decision until the segment was assembled in tcp_output() and
retransmitted SYN segments could have different CC options.

Reviewed by:	Richard Stevens, davidg, wollman
1995-11-03 22:08:13 +00:00
Garrett Wollman
054ef37088 Instrument the IP input queue with two new read-only MIB entries:
net.inet.ip.intr-queue-maxlen (=== ipintrq.ifq_maxlen)
and	net.inet.ip.intr-queue-drops (=== ipintrq.ifq_drops)

There should probably be a standard way of getting the same information
going the other way.
1995-11-01 17:18:27 +00:00
Andras Olah
b6239c4a19 Start the 2MSL timer when the socket is closed and the TCP connection is
in the FIN_WAIT_2 state in order to prevent the conn. hanging there
forever.

Reviewed by:	davidg, olah
Submitted by:	Arne Henrik Juul <arnej@imf.unit.no>
Obtained from:	bugs@netbsd.org
1995-10-29 21:30:25 +00:00
Poul-Henning Kamp
a98ca4699e Second batch of cleanup changes.
This time mostly making a lot of things static and some unused
variables here and there.
1995-10-29 15:33:36 +00:00
Julian Elischer
cc6a66f20e Reviewed by: julian and jhay@mikom.csir.co.za
Submitted by:	Mike Mitchell, supervisor@alb.asctmd.com

This is a bulk mport of Mike's IPX/SPX protocol stacks and all the
related gunf that goes with it..
it is not guaranteed to work 100% correctly at this time
but as we had several people trying to work on it
I figured it would be better to get it checked in so
they could all get teh same thing to work on..

Mikes been using it for a year or so
but on 2.0

more changes and stuff will be merged in from other developers now that this is in.

Mike Mitchell, Network Engineer
AMTECH Systems Corporation, Technology and Manufacturing
8600 Jefferson Street, Albuquerque, New Mexico 87113 (505) 856-8000
supervisor@alb.asctmd.com
1995-10-26 20:31:59 +00:00
Ugen J.S. Antsilevich
7934237885 Support all the tcpflag options in firewall.
Add reading options from file, now ipfw <filename> will
read commands string after string from file , form of strings
same as command line interface.
1995-10-23 03:58:06 +00:00
Poul-Henning Kamp
e3965e5b67 Remove the last trace of arptnew() 1995-10-22 19:07:58 +00:00
David Greenman
c1f8a6cefa Fix panic caused by PRU_CONTROL not being dealt with properly. Bug pointed
out by David Maltz <dmaltz@orval.mach.cs.cmu.edu>, but this fix is by me.
1995-10-21 02:12:20 +00:00
Garrett Wollman
3d1f141b23 The ability to administratively change the MTU of an interface presents
a few new wrinkles for MTU discovery which tcp_output() had better
be prepared to handle.  ip_output() is also modified to do something
helpful in this case, since it has already calculated the information
we need.
1995-10-16 18:21:26 +00:00
Garrett Wollman
91badc866f Routes can be asymmetric. Always offer to /accept/ an MSS of up to the
capacity of the link, even if the route's MTU indicates that we cannot
send that much in their direction.  (This might actually make it possible
to test Path MTU discovery in a useful variety of cases.)
1995-10-13 16:00:25 +00:00
Garrett Wollman
3abc79d2ee The additional checks involving sequence numbers in MTU discovery resends
turned out not to be necessary; simply watching for MTU decreases (which
we already did) automagically eliminates all the cases we were trying to
protect against.
1995-10-12 17:37:25 +00:00
Garrett Wollman
143d7a5499 More MTU discovery: avoid over-retransmission if route changes in the
middle of a fully-open window.  Also, keep track of how many retransmits
we do as a result of MTU discovery.  This may actually do more work than
necessary, but it's an unusual condition...

Suggested by: Janey Hoe <janey@lcs.mit.edu>
1995-10-10 17:45:43 +00:00
Garrett Wollman
1cb55cbffc Put newline at end of log()ed messages so syslog can't fill up your
/var quite as fast.
1995-10-06 19:30:43 +00:00
Garrett Wollman
66800f5742 Convert ARP to use queue.h macros rather than insque/remque. While
we're at it, eliminate obsolete exposure of `struct llinfo_arp' to
the world.  (This dates back to when ARP entries were not stored in
the routing table, and there was no other way for the `arp' program
to read the whole table than to grovel around in /dev/kmem.)
1995-10-05 20:08:43 +00:00
Garrett Wollman
6bb9a8e77d Make a whole bunch of PCB variables ints rather than shorts. There appear
to be no ill effects, and so far as Iknow none of the variables in
question depend on 16-bit wraparound behavior.  (The sizes are in
many cases relics from when a PCB had to fit inside a 128-byte mbuf.  PCBs
are no longer stored in that way, and the old structure would not have
fit, either.)
1995-10-04 20:49:03 +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
Ugen J.S. Antsilevich
37afa1e829 Well..finally..this is the first part..it should take care of
matching IP options..Check and test this - i made only a couple
of rough tests and this could be buggy.. Ipaccounting can't use
IP Options (and i don't see any need to cound packets with specific
options either..)
More to come...
1995-10-01 21:52:50 +00:00
Garrett Wollman
d7f570e630 Merge 4.4-Lite-2: update version number (we already have the same fixes).
Obtained from:	4.4BSD-Lite-2
1995-09-22 20:05:58 +00:00
Garrett Wollman
6dfab5b1e1 Merge 4.4-Lite-2: always check the UDP checksum if it is present, even
if we are not generating checksums.  (Save a test in the input path.)
1995-09-22 19:56:26 +00:00
Garrett Wollman
f001bbb882 Correct spelling error in MTUDISC code. 1995-09-22 17:43:37 +00:00
Peter Wemm
4dc45a5fa1 Remove duplicate definition for tcps_persistdrop, as added by davidg some
time ago.  I left in Garrett's one, because his was in the 4.4-Lite-2
location, making any diffs just that little bit smaller.

I presume this choice means that netstat needs to be recompiled before
"netstat -s" will give a meaningful answer on tcp stats.
1995-09-22 07:40:18 +00:00
Garrett Wollman
25f26ad85a Merge with 4.4-Lite-2: fix bug that caused getsockopt of IP_HDRINCL
to fail.

Obtained from:	4.4BSD-Lite-2
1995-09-21 19:59:43 +00:00
Garrett Wollman
3271ad14d8 Merge 4.4-Lite-2 by updating the version number.
Obtained from:	4.4BSD-Lite-2
1995-09-21 18:04:43 +00:00
Garrett Wollman
425f123ed4 Merge 4.4-Lite-2: update some declarations that we don't support anyway.
Obtained from:	4.4BSD-Lite-2
1995-09-21 17:58:07 +00:00
Garrett Wollman
2469dd60b7 Merge 4.4-Lite-2: use M_NOWAIT in in_pcballoc(), and return EACCES rather
than EPERM on illegal attempt to bind a reserved port.

Obtained from:	4.4BSD-Lite-2
1995-09-21 17:55:49 +00:00
Garrett Wollman
2180b92513 Merge with 4.4-Lite-2. This is actually a 64-bit fix; the second parameter
to in_control() is sometimes a pointer, and sometimes an integer, so use
u_long rather than int.

Obtained from:	4.4BSD-Lite-2
1995-09-21 17:50:45 +00:00
Garrett Wollman
ef91e5283e Merge with 4.4-Lite-2. This involves changing the version number and
moving a declaration around.

Obtained from:	4.4BSD-Lite-2
1995-09-21 17:39:51 +00:00
Garrett Wollman
6c52bc4648 Merge with 4.4-Lite-2. This just adds a couple of tcpstat entries which
we don't currently set, but might in the future.
1995-09-21 17:29:13 +00:00