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33 Commits

Author SHA1 Message Date
Poul-Henning Kamp
ae2a1587f0 Fix wrong logic, certain rules never matched. 1996-02-26 15:28:15 +00:00
Poul-Henning Kamp
09bb5f7589 Make getsockopt() capable of handling more than one mbuf worth of data. 
Use this to read rules out of ipfw.
Add the lkm code to ipfw.c
 1996-02-24 13:38:28 +00:00
Poul-Henning Kamp
b83e431483 The new firewall functionality: 
Filter on the direction (in/out).
	Filter on fragment/not fragment.
 1996-02-24 00:17:35 +00:00
Poul-Henning Kamp
a2ebc3ee0f I overlooked this one. 1996-02-23 20:11:37 +00:00
Poul-Henning Kamp
e7319bab6b Big sweep over the IPFIREWALL and IPACCT code. 
Close the ip-fragment hole.
Waste less memory.
Rewrite to contemporary more readable style.
Kill separate IPACCT facility, use "accept" rules in IPFIREWALL.
Filter incoming >and< outgoing packets.
Replace "policy" by sticky "deny all" rule.
Rules have numbers used for ordering and deletion.
Remove "rerorder" code entirely.
Count packet & bytecount matches for rules.

Code in -current & -stable is now the same.
 1996-02-23 15:47:58 +00:00
Poul-Henning Kamp
821c204e91 Make the sorting of IPFW rules an option. You don't want it to sort them. 
>>>WARNING<<<  you may have to revisit your firewall setup.
 1996-02-03 11:48:12 +00:00
Bruce Evans
ce7609a49c Completed function declarations and/or added prototypes. 1995-12-02 19:38:06 +00:00
Poul-Henning Kamp
0312fbe97d New style sysctl & staticize alot of stuff. 1995-11-14 20:34:56 +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
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
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
Gary Palmer
7d4aa0825d Try to make the `syn' blocking code act a bit more sensibly - don't 
block `syn' packets that have `ack' set.
Reviewed by:
Submitted by:
Obtained from:
 1995-07-31 13:58:35 +00:00
David Greenman
f70b105004 Added $Id$. 1995-07-23 05:36:31 +00:00
David Greenman
c6e8c3576e Fixed panic that occurs on certain firewall rejected packets that was 
caused by dtom() being used on an mbuf cluster. The fix involves passing
around the mbuf pointer.

Submitted by:	Bill Fenner
 1995-07-09 14:29:46 +00:00
David Greenman
09270166bb This is the end result of about a dozen passes through this code to fix 
incorrect indents, a variety of poor coding practices such as comparing
pointers to constants ('0'), poor code structuring, etc, etc. This brings
the code up to the minimum standards for inclusion in FreeBSD.
 1995-07-04 05:39:03 +00:00
David Greenman
ed64321cec Define TRUE and FALSE. 1995-07-04 05:29:30 +00:00
David Greenman
7e9367a410 1) Removed bogus #include 
2) Rewrote "bad_packet" code to be less buggy and more readable.
3) Removed a pile of goto's; the code is now somewhat less reminiscent
   of a certain Italian pasta.
4) Changed all boolean returns of "0" and "1" to FALSE/TRUE.
 1995-07-04 03:35:20 +00:00
Gary Palmer
06cf932bcb Add a missing `goto' statement so that this compiles yet again. 1995-06-28 13:22:36 +00:00
Guido van Rooij
a0aa52a646 reject option in ip_fw used to panic the system. This fixes it. 
-Guido
Reviewed by:
Submitted by:
Obtained from:
 1995-06-27 17:26:27 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
Rodney W. Grimes
b2b795f07c Fix -Wformat warnings from LINT kernel. 1995-05-11 19:26:53 +00:00
Ugen J.S. Antsilevich
9870b4d2de Allocate memory as M_IPFW,now we can watch firewall memory usage 
in vmstat..
 1995-03-12 13:28:13 +00:00
Ugen J.S. Antsilevich
29fe22b93f Allow "via" to be specified ever as IP adress or 
as interface name/unit...
 1995-02-24 14:33:54 +00:00
Ugen J.S. Antsilevich
4dd1662b4c Actual firewall change. 
1) Firewall is not subdivided on forwarding / blocking chains
   anymore.Actually only one chain left-it was the blocking one.
2) LKM support.ip_fwdef.c is function pointers definition and
goes into kernel along with all INET stuff.
 1995-01-12 13:06:32 +00:00
Ugen J.S. Antsilevich
3107b31b8d Add clear one accounting entry control. 
Structure fields changed to seem more standart.
 1994-12-13 15:57:34 +00:00
Ugen J.S. Antsilevich
f3caf95e23 Late patch for delete control.. 1994-12-12 18:10:41 +00:00
Ugen J.S. Antsilevich
10a642bb05 Add match by interface from which packet arrived (via) 
Handle right fragmented packets. Remove checking option
from kernel..
 1994-12-12 17:20:55 +00:00
Ugen J.S. Antsilevich
c334f8666a Added: ICMP reply,TCP SYN check,logging.. 1994-11-28 12:35:14 +00:00
Jordan K. Hubbard
63f8d699ac Ugen J.S.Antsilevich's latest, happiest, IP firewall code. 
Poul:  Please take this into BETA.  It's non-intrusive, and a rather
substantial improvement over what was there before.
 1994-11-16 10:17:11 +00:00
Jordan K. Hubbard
72e8fea57e Almost 12th hour (the 11th hour was almost an hour ago :-) patches 
from Ugen.
 1994-11-08 12:47:29 +00:00
Jordan K. Hubbard
ad63b51399 2 11th-hour fixes from Ugen (not Uben, sorry!) J.S.Antsilevich. 
I think it's time for Ugen to get a freefall account, just so I can
direct mail at him directly and let him drop off patches for us here.  Ugen?
Done!
Submitted by:	ugen
 1994-11-07 10:01:32 +00:00
Jordan K. Hubbard
0a87b23329 Latest changes from Uben. 
Submitted by:	uben
 1994-10-31 23:58:04 +00:00
Jordan K. Hubbard
100ba1a617 IP Firewall code from Daniel Boulet and J.S.Antsilevich 
Submitted by:	danny ugen
 1994-10-28 15:09:49 +00:00